haha websockets, c++ and winuser go brr

gh-actions v0.1
4yn 2021-04-30 20:03:33 +08:00
commit 28b03b1521
186 changed files with 38190 additions and 0 deletions

5
.gitignore vendored 100644
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.vs/
build/
res/chart/*
!res/chart/.gitkeep
dist/

16
.vscode/launch.json vendored 100644
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{
"version": "0.2.0",
"configurations": [
{
"name": "Launch",
"type": "cppvsdbg",
"request": "launch",
"program": "${command:cmake.launchTargetPath}",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": true
}
]
}

5
.vscode/settings.json vendored 100644
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{
"C_Cpp.default.configurationProvider": "vector-of-bool.cmake-tools",
"cmake.configureOnOpen": true,
"editor.defaultFormatter": "ms-vscode.cpptools"
}

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CMakeLists.txt 100644
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cmake_minimum_required(VERSION 3.15)
project(brokenithm-kb)
set(CMAKE_C_STANDARD 14)
set(CMAKE_C_STANDARD_REQUIRED True)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
add_subdirectory(src)

674
LICENSE 100644
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This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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README.md 100644
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# brokenithm-kb 💸
> Because $300 plus shipping and a two month wait is too painful for a tasoller
Run this together alongside SUSPlayer or your other favourite sliding universal score simulator.
## Setup
1. Check the releases page on github, download and unzip into your preferred folder.
2. Connect an iPad or some other tablet device to the **same wifi access point** as your windows machine.
> Windows hotspot also works, just make sure you turn on the hotspot before running `brokenithm-kb.exe`.
![hotspot](images/wifi.png)
3. Run `brokenithm-kb.exe`.
4. If this is the first time running the program, give the program firewall permissions.
![firewall](images/firewall.png)
> When using windows hotspot, ensure 'public' is enabled. If there are any other issues, try checking the "incoming rules" menu of windows firewall from the control panel.
> You may need grant firewall permissions the first time and then restart the program.
5. Some URLs should be displayed on the command line window, try opening each one of them in your tablet device until you see the controller screen.
![running window](images/link.png)
6. If you see 'Controller ID ? Connected', the controller is working!
![connected](images/connected.png)
7. Open up SUSplayer or some other simulator and have fun!
I also recommend using the "Add to home" feature for Safari / Chrome, it makes the controller fullscreen.
![add to home](images/homescreen.png)
The difference between Safari and "Add to home" looks like this:
![safari vs add to home](images/fullscreen.png)
## Options
Options for the server can be changed with command line arguments, check `.\brokenithm-kb.exe -h` or edit `run.bat`.
Appearance of the touchscreen controller can be changed by editing `./res/www/config.js`.
You can change the displayed colors and also add a background image URL to the controller. Just upload an image to imgur or somewhere else and place the link there.
## Building from source
Needs cmake and some vcpkg packages:
```
libuv:x64-windows
openssl-windows:x64-windows
openssl:x64-windows
usockets:x64-windows
zlib:x64-windows
```
Built on windows `cl.exe 19.28.29337`.
If anyone knows enough C++/cmake/CI to help out with making this section better do pm me.
## Attribution
[uWebsockets](https://github.com/uNetworking/uWebSockets) is licensed under the Apache License 2.0.
[spdlog](https://github.com/gabime/spdlog) is licensed under the MIT License.
Packaged background image was created using [SVG-Backgrounds](https://www.svgbackgrounds.com/).
[Twemoji](https://github.com/twitter/twemoji) is licensed under CC-BY 4.0.

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{
"folders": [
{
"path": "."
}
],
"settings": {
"cmake.configureArgs": [
"-DCMAKE_TOOLCHAIN_FILE=E:\\Environment\\vcpkg\\scripts\\buildsystems\\vcpkg.cmake",
"-DVCPKG_TARGET_TRIPLET=x64-windows"
],
"editor.defaultFormatter": "ms-vscode.cpptools",
"editor.formatOnSave": true,
"C_Cpp.formatting": "Default",
"editor.tabSize": 4,
"files.associations": {
"*.in": "plaintext",
"*.out": "plaintext",
"*.ans": "plaintext",
"xstring": "cpp",
"unordered_map": "cpp",
"vector": "cpp",
"exception": "cpp",
"filesystem": "cpp",
"future": "cpp",
"chrono": "cpp",
"algorithm": "cpp",
"array": "cpp",
"atomic": "cpp",
"bitset": "cpp",
"cctype": "cpp",
"clocale": "cpp",
"cmath": "cpp",
"codecvt": "cpp",
"complex": "cpp",
"concepts": "cpp",
"condition_variable": "cpp",
"csignal": "cpp",
"cstdarg": "cpp",
"cstddef": "cpp",
"cstdint": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"cstring": "cpp",
"ctime": "cpp",
"cwchar": "cpp",
"cwctype": "cpp",
"deque": "cpp",
"fstream": "cpp",
"functional": "cpp",
"initializer_list": "cpp",
"iomanip": "cpp",
"ios": "cpp",
"iosfwd": "cpp",
"iostream": "cpp",
"istream": "cpp",
"iterator": "cpp",
"limits": "cpp",
"list": "cpp",
"locale": "cpp",
"map": "cpp",
"memory": "cpp",
"mutex": "cpp",
"new": "cpp",
"numeric": "cpp",
"optional": "cpp",
"ostream": "cpp",
"ratio": "cpp",
"set": "cpp",
"shared_mutex": "cpp",
"sstream": "cpp",
"stdexcept": "cpp",
"streambuf": "cpp",
"string": "cpp",
"system_error": "cpp",
"thread": "cpp",
"tuple": "cpp",
"type_traits": "cpp",
"typeindex": "cpp",
"typeinfo": "cpp",
"unordered_set": "cpp",
"utility": "cpp",
"variant": "cpp",
"xfacet": "cpp",
"xhash": "cpp",
"xiosbase": "cpp",
"xlocale": "cpp",
"xlocbuf": "cpp",
"xlocinfo": "cpp",
"xlocmes": "cpp",
"xlocmon": "cpp",
"xlocnum": "cpp",
"xloctime": "cpp",
"xmemory": "cpp",
"xstddef": "cpp",
"xtr1common": "cpp",
"xtree": "cpp",
"xutility": "cpp",
"forward_list": "cpp",
"valarray": "cpp",
"queue": "cpp"
},
"search.exclude": {
"src/vendor/*": true
}
}
}

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var config = {
// Inverted layout mode.
// Set to "true" to have the "lift" key at the bottom of the screen rather than the top.
invert: false,
// Use a solid background color
bgImage: false,
bgColor: "#000000",
// Use a custom background image
// bgColor is overlayed on the image, so make it semi-transparent
// bgImage:
// "https://raw.githubusercontent.com/gist/4yn/df052666266ce25554110ca1b4f33ce3/raw/1e5e6ab966639bb6786a4690dc49097763b16ba0/subtle-prism.svg",
// bgColor: "rgba(0, 0, 0, 0.5)",
// Key Press Color
keyColor: "#FF00FF",
// Lift key color
lkeyColor: "#00FFFF",
};

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res/www/index.html 100644
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<!DOCTYPE html>
<html>
<head>
<title>brokenithm-kb</title>
<meta charset="utf8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"
/>
<meta name="apple-mobile-web-app-capable" content="yes" />
<link rel="apple-touch-icon" href="favicon.ico" />
<style>
#fullscreen {
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
background: #000000;
color: hotpink;
}
.container {
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
display: flex;
flex-flow: column nowrap;
touch-action: none;
align-items: stretch;
}
.air-container {
display: flex;
flex-flow: column nowrap;
align-items: stretch;
flex: 1;
}
.touch-container {
display: flex;
flex-flow: row nowrap;
align-items: stretch;
flex: 1;
}
.grow > * {
flex: 1;
}
.key {
flex: 1;
border: 1px solid green;
}
.key[data-active] {
background-color: hotpink;
}
.key.air[data-active] {
background-color: skyblue;
}
canvas {
touch-action: none;
margin: 0px -1.5625vw;
}
</style>
</head>
<body>
<div id="fullscreen">
<!-- Offset for LED display -->
<div class="container">
<div class="air-container grow"></div>
<div class="touch-container grow">
<canvas id="canvas" width="33" height="1"></canvas>
</div>
</div>
<!-- Hitbox Divs -->
<div class="container" id="main">
<div class="air-container grow">
<div class="air key" data-air="1" data-kflag="5"></div>
<div class="air key" data-air="1" data-kflag="4"></div>
<div class="air key" data-air="1" data-kflag="3"></div>
<div class="air key" data-air="1" data-kflag="2"></div>
<div class="air key" data-air="1" data-kflag="1"></div>
<div class="air key" data-air="1" data-kflag="0"></div>
</div>
<div class="touch-container grow">
<div class="key" data-kflag="0"></div>
<div class="key" data-kflag="2"></div>
<div class="key" data-kflag="4"></div>
<div class="key" data-kflag="6"></div>
<div class="key" data-kflag="8"></div>
<div class="key" data-kflag="10"></div>
<div class="key" data-kflag="12"></div>
<div class="key" data-kflag="14"></div>
<div class="key" data-kflag="16"></div>
<div class="key" data-kflag="18"></div>
<div class="key" data-kflag="20"></div>
<div class="key" data-kflag="22"></div>
<div class="key" data-kflag="24"></div>
<div class="key" data-kflag="26"></div>
<div class="key" data-kflag="28"></div>
<div class="key" data-kflag="30"></div>
</div>
</div>
</div>
<script src="/config.js"></script>
<script src="/app.js"></script>
</body>
</html>

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res/www/src.js 100644
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/*
Post-process with https://babeljs.io/repl and https://javascript-minifier.com/
*/
const throttle = (func, wait) => {
var ready = true;
var args = null;
return function throttled() {
var context = this;
if (ready) {
ready = false;
setTimeout(function () {
ready = true;
if (args) {
throttled.apply(context);
}
}, wait);
if (args) {
func.apply(this, args);
args = null;
} else {
func.apply(this, arguments);
}
} else {
args = arguments;
}
};
};
// Element refs
var keys = document.getElementsByClassName("key");
var airKeys = [];
var midline = 0;
var touchKeys = [];
var allKeys = [];
var topKeys = airKeys;
var bottomKeys = touchKeys;
const compileKey = (key) => {
const prev = key.previousElementSibling;
const next = key.nextElementSibling;
return {
top: key.offsetTop,
bottom: key.offsetTop + key.offsetHeight,
left: key.offsetLeft,
right: key.offsetLeft + key.offsetWidth,
almostLeft: !!prev ? key.offsetLeft + key.offsetWidth / 4 : -99999,
almostRight: !!next ? key.offsetLeft + (key.offsetWidth * 3) / 4 : 99999,
kflag: parseInt(key.dataset.kflag) + (parseInt(key.dataset.air) ? 32 : 0),
isAir: parseInt(key.dataset.air) ? true : false,
prevKeyRef: prev,
prevKeyKflag: prev
? parseInt(prev.dataset.kflag) + (parseInt(prev.dataset.air) ? 32 : 0)
: null,
nextKeyRef: next,
nextKeyKflag: next
? parseInt(next.dataset.kflag) + (parseInt(next.dataset.air) ? 32 : 0)
: null,
ref: key,
};
};
const isInside = (x, y, compiledKey) => {
return (
compiledKey.left <= x &&
x < compiledKey.right &&
compiledKey.top <= y &&
y < compiledKey.bottom
);
};
const compileKeys = () => {
keys = document.getElementsByClassName("key");
airKeys = [];
touchKeys = [];
for (var i = 0, key; i < keys.length; i++) {
const compiledKey = compileKey(keys[i]);
if (!compiledKey.isAir) {
touchKeys.push(compiledKey);
} else {
airKeys.push(compiledKey);
}
allKeys.push(compiledKey);
}
if (!config.invert) {
// Not inverted
topKeys = airKeys;
bottomKeys = touchKeys;
midline = touchKeys[0].top;
} else {
// Inverted
topKeys = touchKeys;
bottomKeys = airKeys;
midline = touchKeys[0].bottom;
}
};
const getKey = (x, y) => {
if (y < midline) {
for (var i = 0; i < topKeys.length; i++) {
if (isInside(x, y, topKeys[i])) return topKeys[i];
}
} else {
for (var i = 0; i < bottomKeys.length; i++) {
if (isInside(x, y, bottomKeys[i])) {
return bottomKeys[i];
}
}
}
return null;
};
// Button State
// prettier-ignore
var lastState = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
];
function updateTouches(e) {
try {
e.preventDefault();
// prettier-ignore
var keyFlags = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
];
throttledRequestFullscreen();
for (var i = 0; i < e.touches.length; i++) {
const touch = e.touches[i];
const x = touch.clientX;
const y = touch.clientY;
const key = getKey(x, y);
if (!key) continue;
setKey(keyFlags, key.kflag, key.isAir);
if (key.isAir) continue;
if (x < key.almostLeft) {
setKey(keyFlags, key.prevKeyKflag, false);
}
if (key.almostRight < x) {
setKey(keyFlags, key.nextKeyKflag, false);
}
}
// Render keys
for (var i = 0; i < allKeys.length; i++) {
const key = allKeys[i];
const kflag = key.kflag;
if (keyFlags[kflag] !== lastState[kflag]) {
if (keyFlags[kflag]) {
key.ref.setAttribute("data-active", "");
} else {
key.ref.removeAttribute("data-active");
}
}
}
if (keyFlags !== lastState) {
throttledSendKeys(keyFlags);
}
lastState = keyFlags;
} catch (err) {
alert(err);
}
}
const throttledUpdateTouches = throttle(updateTouches, 10);
const setKey = (keyFlags, kflag, isAir) => {
var idx = kflag;
if (keyFlags[idx] && !isAir) {
idx++;
}
keyFlags[idx] = 1;
};
const sendKeys = (keyFlags) => {
if (wsConnected) {
ws.send("b" + keyFlags.join(""));
}
};
const throttledSendKeys = throttle(sendKeys, 10);
// Websockets
var ws = null;
var wsTimeout = 0;
var wsConnected = false;
const wsConnect = () => {
ws = new WebSocket("ws://" + location.host + "/ws");
ws.binaryType = "arraybuffer";
ws.onopen = () => {
ws.send("alive?");
};
ws.onmessage = (e) => {
if (e.data.byteLength) {
updateLed(e.data);
} else if (e.data == "alive") {
wsTimeout = 0;
wsConnected = true;
}
};
};
const wsWatch = () => {
if (wsTimeout++ > 2) {
wsTimeout = 0;
ws.close();
wsConnected = false;
wsConnect();
return;
}
if (wsConnected) {
ws.send("alive?");
}
};
// Canvas vars
var canvas = document.getElementById("canvas");
var canvasCtx = canvas.getContext("2d");
var canvasData = canvasCtx.getImageData(0, 0, 33, 1);
const setupLed = () => {
for (var i = 0; i < 33; i++) {
canvasData.data[i * 4 + 3] = 255;
}
};
setupLed();
const updateLed = (data) => {
const buf = new Uint8Array(data);
for (var i = 0; i < 32; i++) {
canvasData.data[i * 4] = buf[(31 - i) * 3 + 1]; // r
canvasData.data[i * 4 + 1] = buf[(31 - i) * 3 + 2]; // g
canvasData.data[i * 4 + 2] = buf[(31 - i) * 3 + 0]; // b
}
// Copy from first led
canvasData.data[128] = buf[94];
canvasData.data[129] = buf[95];
canvasData.data[130] = buf[93];
canvasCtx.putImageData(canvasData, 0, 0);
};
// Fullscreener
const fs = document.getElementById("fullscreen");
const requestFullscreen = () => {
if (!document.fullscreenElement && screen.height <= 1024) {
if (fs.requestFullscreen) {
fs.requestFullscreen();
} else if (fs.mozRequestFullScreen) {
fs.mozRequestFullScreen();
} else if (fs.webkitRequestFullScreen) {
fs.webkitRequestFullScreen();
}
}
};
const throttledRequestFullscreen = throttle(requestFullscreen, 3000);
// Do update hooks
const cnt = document.getElementById("main");
cnt.addEventListener("touchstart", updateTouches);
cnt.addEventListener("touchmove", updateTouches);
cnt.addEventListener("touchend", updateTouches);
// cnt.addEventListener("touchstart", throttledUpdateTouches);
// cnt.addEventListener("touchmove", throttledUpdateTouches);
// cnt.addEventListener("touchend", throttledUpdateTouches);
// Load config
const readConfig = (config) => {
var style = "";
if (!!config.invert) {
style += `.container, .air-container {flex-flow: column-reverse nowrap;} `;
}
var bgColor = config.bgColor || "rbga(0, 0, 0, 0.9)";
if (!config.bgImage) {
style += `#fullscreen {background: ${bgColor};} `;
} else {
style += `#fullscreen {background: ${bgColor} url("${config.bgImage}") fixed center / cover!important; background-repeat: no-repeat;} `;
}
if (typeof config.ledOpacity === "number") {
if (config.ledOpacity === 0) {
style += `#canvas {display: none} `;
} else {
style += `#canvas {opacity: ${config.ledOpacity}} `;
}
}
if (typeof config.keyColor === "string") {
style += `.key[data-active] {background-color: ${config.keyColor};} `;
}
if (typeof config.keyColor === "string") {
style += `.key.air[data-active] {background-color: ${config.lkeyColor};} `;
}
if (typeof config.keyBorderColor === "string") {
style += `.key {border: 1px solid ${config.keyBorderColor};} `;
}
if (!!config.keyColorFade && typeof config.keyColorFade === "number") {
style += `.key:not([data-active]) {transition: background ${config.keyColorFade}ms ease-out;} `;
}
if (typeof config.keyHeight === "number") {
if (config.keyHeight === 0) {
style += `.touch-container {display: none;} `;
} else {
style += `.touch-container {flex: ${config.keyHeight};} `;
}
}
if (typeof config.lkeyHeight === "number") {
if (config.lkeyHeight === 0) {
style += `.air-container {display: none;} `;
} else {
style += `.air-container {flex: ${config.keyHeight};} `;
}
}
var styleRef = document.createElement("style");
styleRef.innerHTML = style;
document.head.appendChild(styleRef);
};
// Initialize
const initialize = () => {
readConfig(config);
compileKeys();
wsConnect();
setInterval(wsWatch, 1000);
};
initialize();
// Update keys on resize
window.onresize = compileKeys;

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scripts/run.bat 100644
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ECHO OFF
REM Just run brokenithm-kb
.\brokenithm-kb.exe
REM Run on a different port
REM .\brokenithm-kb.exe -p 1117
REM Run in debug mode
REM .\brokenithm-kb.exe -v

21
src/CMakeLists.txt 100644
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add_subdirectory(Vendor)
set(SRCROOT ${CMAKE_CURRENT_SOURCE_DIR}/src/)
file(GLOB SRC "${SRCROOT}/*.cpp" "${SRCROOT}/*.hpp" "${SRCROOT}/*.rc")
source_group("Sources" FILES ${SRC})
message("${SRCROOT}")
add_executable(brokenithm-kb ${SRC})
target_compile_features(brokenithm-kb PRIVATE cxx_std_17)
target_include_directories(brokenithm-kb PRIVATE ${SRCROOT})
target_link_libraries(brokenithm-kb PRIVATE uws optparse spdlog)
add_custom_command(
TARGET brokenithm-kb POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_SOURCE_DIR}/res/ $<TARGET_FILE_DIR:brokenithm-kb>/res/
COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_SOURCE_DIR}/scripts/ $<TARGET_FILE_DIR:brokenithm-kb>/
)

3
src/Vendor/CMakeLists.txt vendored 100644
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add_subdirectory(uwebsockets)
add_subdirectory(optparse)
add_subdirectory(spdlog)

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project(optparse LANGUAGES CXX)
add_library(optparse INTERFACE)
target_include_directories(optparse INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)

80
src/Vendor/optparse/README.rst vendored 100644
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========
optparse
========
.. image:: https://travis-ci.org/myint/optparse.svg?branch=master
:target: https://travis-ci.org/myint/optparse
:alt: Build status
This is yet another option parser for C++. It is modelled after the
excellent Python optparse API. Although incomplete, anyone familiar to
optparse should feel at home:
https://docs.python.org/library/optparse.html
Copyright (C) 2010 Johannes Weißl <jargon@molb.org>
License: your favourite BSD-style license
Design decisions
================
- elegant and easy usage more important than speed / flexibility
- shortness more important than feature completeness
- no unicode
- no checking for user programming errors
Why not use getopt/getopt_long?
- not C++ / not completely POSIX
- too cumbersome to use, would need lot of additional code
Why not use Boost.Program_options?
- boost not installed on all target platforms (esp. cluster, HPC, ...)
- too big to include just for option handling:
322 ``*.h`` (44750 lines) + 7 ``*.cpp`` (2078 lines)
Why not use tclap/Opag/Options/CmdLine/Anyoption/Argument_helper/...?
- no reason, writing one is faster than code inspection :-)
- similarity to Python desired for faster learning curve
Future work
===========
- nargs > 1?
- comments?
Example
=======
.. code-block:: cpp
#include <optparse.h>
#include <iostream>
#include <string>
#include <vector>
int main(int argc, char **argv)
{
optparse::OptionParser parser =
optparse::OptionParser().description("just an example");
parser.add_option("-f", "--file").dest("filename")
.help("write report to FILE").metavar("FILE");
parser.add_option("-q", "--quiet")
.action("store_false")
.dest("verbose")
.set_default("1")
.help("don't print status messages to stdout");
const optparse::Values options = parser.parse_args(argc, argv);
const std::vector<std::string> args = parser.args();
if (options.get("verbose"))
{
std::cout << options["filename"] << "\n";
}
}

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src/Vendor/spdlog/CMakeLists.txt vendored 100644
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# Copyright(c) 2019 spdlog authors Distributed under the MIT License (http://opensource.org/licenses/MIT)
cmake_minimum_required(VERSION 3.10)
# ---------------------------------------------------------------------------------------
# Start spdlog project
# ---------------------------------------------------------------------------------------
include(cmake/utils.cmake)
include(cmake/ide.cmake)
spdlog_extract_version()
project(spdlog VERSION ${SPDLOG_VERSION} LANGUAGES CXX)
message(STATUS "Build spdlog: ${SPDLOG_VERSION}")
include(GNUInstallDirs)
# ---------------------------------------------------------------------------------------
# Set default build to release
# ---------------------------------------------------------------------------------------
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose Release or Debug" FORCE)
endif()
# ---------------------------------------------------------------------------------------
# Compiler config
# ---------------------------------------------------------------------------------------
if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()
# make sure __cplusplus is defined when using msvc
if(MSVC)
string(APPEND CMAKE_CXX_FLAGS " /Zc:__cplusplus")
endif()
set(CMAKE_CXX_EXTENSIONS OFF)
if(CMAKE_SYSTEM_NAME MATCHES "CYGWIN" OR CMAKE_SYSTEM_NAME MATCHES "MSYS")
set(CMAKE_CXX_EXTENSIONS ON)
endif()
# ---------------------------------------------------------------------------------------
# Set SPDLOG_MASTER_PROJECT to ON if we are building spdlog
# ---------------------------------------------------------------------------------------
# Check if spdlog is being used directly or via add_subdirectory, but allow overriding
if(NOT DEFINED SPDLOG_MASTER_PROJECT)
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(SPDLOG_MASTER_PROJECT ON)
else()
set(SPDLOG_MASTER_PROJECT OFF)
endif()
endif()
option(SPDLOG_BUILD_ALL "Build all artifacts" OFF)
# build shared option
option(SPDLOG_BUILD_SHARED "Build shared library" OFF)
# precompiled headers option
option(SPDLOG_ENABLE_PCH "Build static or shared library using precompiled header to speed up compilation time" OFF)
# example options
option(SPDLOG_BUILD_EXAMPLE "Build example" ${SPDLOG_MASTER_PROJECT})
option(SPDLOG_BUILD_EXAMPLE_HO "Build header only example" OFF)
# testing options
option(SPDLOG_BUILD_TESTS "Build tests" OFF)
option(SPDLOG_BUILD_TESTS_HO "Build tests using the header only version" OFF)
# bench options
option(SPDLOG_BUILD_BENCH "Build benchmarks (Requires https://github.com/google/benchmark.git to be installed)" OFF)
# sanitizer options
option(SPDLOG_SANITIZE_ADDRESS "Enable address sanitizer in tests" OFF)
# warning options
option(SPDLOG_BUILD_WARNINGS "Enable compiler warnings" OFF)
# install options
option(SPDLOG_INSTALL "Generate the install target" ${SPDLOG_MASTER_PROJECT})
option(SPDLOG_FMT_EXTERNAL "Use external fmt library instead of bundled" OFF)
option(SPDLOG_FMT_EXTERNAL_HO "Use external fmt header-only library instead of bundled" OFF)
option(SPDLOG_NO_EXCEPTIONS "Compile with -fno-exceptions. Call abort() on any spdlog exceptions" OFF)
if(SPDLOG_FMT_EXTERNAL AND SPDLOG_FMT_EXTERNAL_HO)
message(FATAL_ERROR "SPDLOG_FMT_EXTERNAL and SPDLOG_FMT_EXTERNAL_HO are mutually exclusive")
endif()
# misc tweakme options
if(WIN32)
option(SPDLOG_WCHAR_SUPPORT "Support wchar api" OFF)
option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF)
endif()
if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
option(SPDLOG_CLOCK_COARSE
"Use the much faster (but much less accurate) CLOCK_REALTIME_COARSE instead of the regular clock," OFF)
endif()
option(SPDLOG_PREVENT_CHILD_FD "Prevent from child processes to inherit log file descriptors" OFF)
option(SPDLOG_NO_THREAD_ID "prevent spdlog from querying the thread id on each log call if thread id is not needed" OFF)
option(SPDLOG_NO_TLS "prevent spdlog from using thread local storage" OFF)
option(
SPDLOG_NO_ATOMIC_LEVELS
"prevent spdlog from using of std::atomic log levels (use only if your code never modifies log levels concurrently"
OFF)
option(SPDLOG_DISABLE_DEFAULT_LOGGER "Disable default logger creation" OFF)
# clang-tidy
if(${CMAKE_VERSION} VERSION_GREATER "3.5")
option(SPDLOG_TIDY "run clang-tidy" OFF)
endif()
if(SPDLOG_TIDY)
set(CMAKE_CXX_CLANG_TIDY "clang-tidy")
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
message(STATUS "Enabled clang-tidy")
endif()
find_package(Threads REQUIRED)
message(STATUS "Build type: " ${CMAKE_BUILD_TYPE})
# ---------------------------------------------------------------------------------------
# Static/Shared library (shared not supported in windows yet)
# ---------------------------------------------------------------------------------------
set(SPDLOG_SRCS src/spdlog.cpp src/stdout_sinks.cpp src/color_sinks.cpp src/file_sinks.cpp src/async.cpp src/cfg.cpp)
if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
list(APPEND SPDLOG_SRCS src/fmt.cpp)
endif()
if(SPDLOG_BUILD_SHARED OR BUILD_SHARED_LIBS)
if(WIN32)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/version.rc.in ${CMAKE_CURRENT_BINARY_DIR}/version.rc @ONLY)
list(APPEND SPDLOG_SRCS ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
endif()
add_library(spdlog SHARED ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS})
target_compile_definitions(spdlog PUBLIC SPDLOG_SHARED_LIB)
if(MSVC)
target_compile_options(spdlog PUBLIC
$<$<AND:$<CXX_COMPILER_ID:MSVC>,$<NOT:$<COMPILE_LANGUAGE:CUDA>>>:/wd4251 /wd4275>)
endif()
if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
target_compile_definitions(spdlog PRIVATE FMT_EXPORT PUBLIC FMT_SHARED)
endif()
else()
add_library(spdlog STATIC ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS})
endif()
add_library(spdlog::spdlog ALIAS spdlog)
target_compile_definitions(spdlog PUBLIC SPDLOG_COMPILED_LIB)
target_include_directories(spdlog PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
target_link_libraries(spdlog PUBLIC Threads::Threads)
spdlog_enable_warnings(spdlog)
set_target_properties(spdlog PROPERTIES VERSION ${SPDLOG_VERSION} SOVERSION ${SPDLOG_VERSION_MAJOR})
set_target_properties(spdlog PROPERTIES DEBUG_POSTFIX d)
if(COMMAND target_precompile_headers AND SPDLOG_ENABLE_PCH)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/pch.h.in ${PROJECT_BINARY_DIR}/spdlog_pch.h @ONLY)
target_precompile_headers(spdlog PRIVATE ${PROJECT_BINARY_DIR}/spdlog_pch.h)
endif()
# ---------------------------------------------------------------------------------------
# Header only version
# ---------------------------------------------------------------------------------------
add_library(spdlog_header_only INTERFACE)
add_library(spdlog::spdlog_header_only ALIAS spdlog_header_only)
target_include_directories(spdlog_header_only INTERFACE "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
target_link_libraries(spdlog_header_only INTERFACE Threads::Threads)
# ---------------------------------------------------------------------------------------
# Use fmt package if using external fmt
# ---------------------------------------------------------------------------------------
if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO)
if(NOT TARGET fmt::fmt)
find_package(fmt CONFIG REQUIRED)
endif()
target_compile_definitions(spdlog PUBLIC SPDLOG_FMT_EXTERNAL)
target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_FMT_EXTERNAL)
# use external fmt-header-nly
if(SPDLOG_FMT_EXTERNAL_HO)
target_link_libraries(spdlog PUBLIC fmt::fmt-header-only)
target_link_libraries(spdlog_header_only INTERFACE fmt::fmt-header-only)
else() # use external compile fmt
target_link_libraries(spdlog PUBLIC fmt::fmt)
target_link_libraries(spdlog_header_only INTERFACE fmt::fmt)
endif()
set(PKG_CONFIG_REQUIRES fmt) # add dependency to pkg-config
endif()
# ---------------------------------------------------------------------------------------
# Add required libraries for Android CMake build
# ---------------------------------------------------------------------------------------
if (ANDROID)
target_link_libraries(spdlog PUBLIC log)
target_link_libraries(spdlog_header_only INTERFACE log)
endif ()
# ---------------------------------------------------------------------------------------
# Misc definitions according to tweak options
# ---------------------------------------------------------------------------------------
set(SPDLOG_WCHAR_TO_UTF8_SUPPORT ${SPDLOG_WCHAR_SUPPORT})
foreach(
SPDLOG_OPTION
SPDLOG_WCHAR_TO_UTF8_SUPPORT
SPDLOG_WCHAR_FILENAMES
SPDLOG_NO_EXCEPTIONS
SPDLOG_CLOCK_COARSE
SPDLOG_PREVENT_CHILD_FD
SPDLOG_NO_THREAD_ID
SPDLOG_NO_TLS
SPDLOG_NO_ATOMIC_LEVELS
SPDLOG_DISABLE_DEFAULT_LOGGER)
if(${SPDLOG_OPTION})
target_compile_definitions(spdlog PUBLIC ${SPDLOG_OPTION})
target_compile_definitions(spdlog_header_only INTERFACE ${SPDLOG_OPTION})
endif()
endforeach()
if(SPDLOG_NO_EXCEPTIONS AND NOT MSVC)
target_compile_options(spdlog PRIVATE -fno-exceptions)
endif()
# ---------------------------------------------------------------------------------------
# Build binaries
# ---------------------------------------------------------------------------------------
if(SPDLOG_BUILD_EXAMPLE OR SPDLOG_BUILD_EXAMPLE_HO OR SPDLOG_BUILD_ALL)
message(STATUS "Generating example(s)")
add_subdirectory(example)
spdlog_enable_warnings(example)
if(SPDLOG_BUILD_EXAMPLE_HO)
spdlog_enable_warnings(example_header_only)
endif()
endif()
if(SPDLOG_BUILD_TESTS OR SPDLOG_BUILD_TESTS_HO OR SPDLOG_BUILD_ALL)
message(STATUS "Generating tests")
enable_testing()
add_subdirectory(tests)
endif()
if(SPDLOG_BUILD_BENCH OR SPDLOG_BUILD_ALL)
message(STATUS "Generating benchmarks")
add_subdirectory(bench)
endif()
# ---------------------------------------------------------------------------------------
# Install
# ---------------------------------------------------------------------------------------
if(SPDLOG_INSTALL)
message(STATUS "Generating install")
set(project_config_in "${CMAKE_CURRENT_LIST_DIR}/cmake/spdlogConfig.cmake.in")
set(project_config_out "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfig.cmake")
set(config_targets_file "spdlogConfigTargets.cmake")
set(version_config_file "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfigVersion.cmake")
set(export_dest_dir "${CMAKE_INSTALL_LIBDIR}/cmake/spdlog")
set(pkgconfig_install_dir "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
set(pkg_config "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc")
# ---------------------------------------------------------------------------------------
# Include files
# ---------------------------------------------------------------------------------------
install(DIRECTORY include/ DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}" PATTERN "fmt/bundled" EXCLUDE)
install(
TARGETS spdlog spdlog_header_only
EXPORT spdlog
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
install(DIRECTORY include/${PROJECT_NAME}/fmt/bundled/
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/fmt/bundled/")
endif()
# ---------------------------------------------------------------------------------------
# Install pkg-config file
# ---------------------------------------------------------------------------------------
get_target_property(PKG_CONFIG_DEFINES spdlog INTERFACE_COMPILE_DEFINITIONS)
string(REPLACE ";" " -D" PKG_CONFIG_DEFINES "${PKG_CONFIG_DEFINES}")
string(CONCAT PKG_CONFIG_DEFINES "-D" "${PKG_CONFIG_DEFINES}")
configure_file("cmake/${PROJECT_NAME}.pc.in" "${pkg_config}" @ONLY)
install(FILES "${pkg_config}" DESTINATION "${pkgconfig_install_dir}")
# ---------------------------------------------------------------------------------------
# Install CMake config files
# ---------------------------------------------------------------------------------------
install(EXPORT spdlog DESTINATION ${export_dest_dir} NAMESPACE spdlog:: FILE ${config_targets_file})
include(CMakePackageConfigHelpers)
configure_file("${project_config_in}" "${project_config_out}" @ONLY)
write_basic_package_version_file("${version_config_file}" COMPATIBILITY SameMajorVersion)
install(FILES "${project_config_out}" "${version_config_file}" DESTINATION "${export_dest_dir}")
# ---------------------------------------------------------------------------------------
# Support creation of installable packages
# ---------------------------------------------------------------------------------------
include(cmake/spdlogCPack.cmake)
endif()

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src/Vendor/spdlog/LICENSE vendored 100644
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The MIT License (MIT)
Copyright (c) 2016 Gabi Melman.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-- NOTE: Third party dependency used by this software --
This software depends on the fmt lib (MIT License),
and users must comply to its license: https://github.com/fmtlib/fmt/blob/master/LICENSE.rst

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# spdlog
Very fast, header-only/compiled, C++ logging library. [![Build Status](https://travis-ci.org/gabime/spdlog.svg?branch=v1.x)](https://travis-ci.org/gabime/spdlog)&nbsp; [![Build status](https://ci.appveyor.com/api/projects/status/d2jnxclg20vd0o50?svg=true)](https://ci.appveyor.com/project/gabime/spdlog) [![Release](https://img.shields.io/github/release/gabime/spdlog.svg)](https://github.com/gabime/spdlog/releases/latest)
## Install
#### Header only version
Copy the source [folder](https://github.com/gabime/spdlog/tree/v1.x/include/spdlog) to your build tree and use a C++11 compiler.
#### Static lib version (recommended - much faster compile times)
```console
$ git clone https://github.com/gabime/spdlog.git
$ cd spdlog && mkdir build && cd build
$ cmake .. && make -j
```
see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/CMakeLists.txt) on how to use.
## Platforms
* Linux, FreeBSD, OpenBSD, Solaris, AIX
* Windows (msvc 2013+, cygwin)
* macOS (clang 3.5+)
* Android
## Package managers:
* Homebrew: `brew install spdlog`
* MacPorts: `sudo port install spdlog`
* FreeBSD: `cd /usr/ports/devel/spdlog/ && make install clean`
* Fedora: `dnf install spdlog`
* Gentoo: `emerge dev-libs/spdlog`
* Arch Linux: `pacman -S spdlog`
* vcpkg: `vcpkg install spdlog`
* conan: `spdlog/[>=1.4.1]`
* conda: `conda install -c conda-forge spdlog`
* build2: ```depends: spdlog ^1.8.2```
## Features
* Very fast (see [benchmarks](#benchmarks) below).
* Headers only or compiled
* Feature rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library.
* Asynchronous mode (optional)
* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
* Multi/Single threaded loggers.
* Various log targets:
* Rotating log files.
* Daily log files.
* Console logging (colors supported).
* syslog.
* Windows event log.
* Windows debugger (```OutputDebugString(..)```).
* Easily extendable with custom log targets (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface).
* Log filtering - log levels can be modified in runtime as well as in compile time.
* Support for loading log levels from argv or from environment var.
* [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display later on demand.
## Usage samples
#### Basic usage
```c++
#include "spdlog/spdlog.h"
int main()
{
spdlog::info("Welcome to spdlog!");
spdlog::error("Some error message with arg: {}", 1);
spdlog::warn("Easy padding in numbers like {:08d}", 12);
spdlog::critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
spdlog::info("Support for floats {:03.2f}", 1.23456);
spdlog::info("Positional args are {1} {0}..", "too", "supported");
spdlog::info("{:<30}", "left aligned");
spdlog::set_level(spdlog::level::debug); // Set global log level to debug
spdlog::debug("This message should be displayed..");
// change log pattern
spdlog::set_pattern("[%H:%M:%S %z] [%n] [%^---%L---%$] [thread %t] %v");
// Compile time log levels
// define SPDLOG_ACTIVE_LEVEL to desired level
SPDLOG_TRACE("Some trace message with param {}", 42);
SPDLOG_DEBUG("Some debug message");
}
```
---
#### Create stdout/stderr logger object
```c++
#include "spdlog/spdlog.h"
#include "spdlog/sinks/stdout_color_sinks.h"
void stdout_example()
{
// create color multi threaded logger
auto console = spdlog::stdout_color_mt("console");
auto err_logger = spdlog::stderr_color_mt("stderr");
spdlog::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
}
```
---
#### Basic file logger
```c++
#include "spdlog/sinks/basic_file_sink.h"
void basic_logfile_example()
{
try
{
auto logger = spdlog::basic_logger_mt("basic_logger", "logs/basic-log.txt");
}
catch (const spdlog::spdlog_ex &ex)
{
std::cout << "Log init failed: " << ex.what() << std::endl;
}
}
```
---
#### Rotating files
```c++
#include "spdlog/sinks/rotating_file_sink.h"
void rotating_example()
{
// Create a file rotating logger with 5mb size max and 3 rotated files
auto max_size = 1048576 * 5;
auto max_files = 3;
auto logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", max_size, max_files);
}
```
---
#### Daily files
```c++
#include "spdlog/sinks/daily_file_sink.h"
void daily_example()
{
// Create a daily logger - a new file is created every day on 2:30am
auto logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
}
```
---
#### Backtrace support
```c++
// Loggers can store in a ring buffer all messages (including debug/trace) and display later on demand.
// When needed, call dump_backtrace() to see them
spdlog::enable_backtrace(32); // Store the latest 32 messages in a buffer. Older messages will be dropped.
// or my_logger->enable_backtrace(32)..
for(int i = 0; i < 100; i++)
{
spdlog::debug("Backtrace message {}", i); // not logged yet..
}
// e.g. if some error happened:
spdlog::dump_backtrace(); // log them now! show the last 32 messages
// or my_logger->dump_backtrace(32)..
```
---
#### Periodic flush
```c++
// periodically flush all *registered* loggers every 3 seconds:
// warning: only use if all your loggers are thread safe ("_mt" loggers)
spdlog::flush_every(std::chrono::seconds(3));
```
---
#### Stopwatch
```c++
// Stopwatch support for spdlog
#include "spdlog/stopwatch.h"
void stopwatch_example()
{
spdlog::stopwatch sw;
spdlog::debug("Elapsed {}", sw);
spdlog::debug("Elapsed {:.3}", sw);
}
```
---
#### Log binary data in hex
```c++
// many types of std::container<char> types can be used.
// ranges are supported too.
// format flags:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output to lines.
// {:a} - show ASCII if :n is not set.
#include "spdlog/fmt/bin_to_hex.h"
void binary_example()
{
auto console = spdlog::get("console");
std::array<char, 80> buf;
console->info("Binary example: {}", spdlog::to_hex(buf));
console->info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
// more examples:
// logger->info("uppercase: {:X}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf));
}
```
---
#### Logger with multi sinks - each with different format and log level
```c++
// create logger with 2 targets with different log levels and formats.
// the console will show only warnings or errors, while the file will log all.
void multi_sink_example()
{
auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
console_sink->set_level(spdlog::level::warn);
console_sink->set_pattern("[multi_sink_example] [%^%l%$] %v");
auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>("logs/multisink.txt", true);
file_sink->set_level(spdlog::level::trace);
spdlog::logger logger("multi_sink", {console_sink, file_sink});
logger.set_level(spdlog::level::debug);
logger.warn("this should appear in both console and file");
logger.info("this message should not appear in the console, only in the file");
}
```
---
#### Asynchronous logging
```c++
#include "spdlog/async.h"
#include "spdlog/sinks/basic_file_sink.h"
void async_example()
{
// default thread pool settings can be modified *before* creating the async logger:
// spdlog::init_thread_pool(8192, 1); // queue with 8k items and 1 backing thread.
auto async_file = spdlog::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
// alternatively:
// auto async_file = spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("async_file_logger", "logs/async_log.txt");
}
```
---
#### Asynchronous logger with multi sinks
```c++
#include "spdlog/sinks/stdout_color_sinks.h"
#include "spdlog/sinks/rotating_file_sink.h"
void multi_sink_example2()
{
spdlog::init_thread_pool(8192, 1);
auto stdout_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt >();
auto rotating_sink = std::make_shared<spdlog::sinks::rotating_file_sink_mt>("mylog.txt", 1024*1024*10, 3);
std::vector<spdlog::sink_ptr> sinks {stdout_sink, rotating_sink};
auto logger = std::make_shared<spdlog::async_logger>("loggername", sinks.begin(), sinks.end(), spdlog::thread_pool(), spdlog::async_overflow_policy::block);
spdlog::register_logger(logger);
}
```
---
#### User defined types
```c++
// user defined types logging by implementing operator<<
#include "spdlog/fmt/ostr.h" // must be included
struct my_type
{
int i;
template<typename OStream>
friend OStream &operator<<(OStream &os, const my_type &c)
{
return os << "[my_type i=" << c.i << "]";
}
};
void user_defined_example()
{
spdlog::get("console")->info("user defined type: {}", my_type{14});
}
```
---
#### User defined flags in the log pattern
```c++
// Log patterns can contain custom flags.
// the following example will add new flag '%*' - which will be bound to a <my_formatter_flag> instance.
#include "spdlog/pattern_formatter.h"
class my_formatter_flag : public spdlog::custom_flag_formatter
{
public:
void format(const spdlog::details::log_msg &, const std::tm &, spdlog::memory_buf_t &dest) override
{
std::string some_txt = "custom-flag";
dest.append(some_txt.data(), some_txt.data() + some_txt.size());
}
std::unique_ptr<custom_flag_formatter> clone() const override
{
return spdlog::details::make_unique<my_formatter_flag>();
}
};
void custom_flags_example()
{
auto formatter = std::make_unique<spdlog::pattern_formatter>();
formatter->add_flag<my_formatter_flag>('*').set_pattern("[%n] [%*] [%^%l%$] %v");
spdlog::set_formatter(std::move(formatter));
}
```
---
#### Custom error handler
```c++
void err_handler_example()
{
// can be set globally or per logger(logger->set_error_handler(..))
spdlog::set_error_handler([](const std::string &msg) { spdlog::get("console")->error("*** LOGGER ERROR ***: {}", msg); });
spdlog::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
}
```
---
#### syslog
```c++
#include "spdlog/sinks/syslog_sink.h"
void syslog_example()
{
std::string ident = "spdlog-example";
auto syslog_logger = spdlog::syslog_logger_mt("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
```
---
#### Android example
```c++
#include "spdlog/sinks/android_sink.h"
void android_example()
{
std::string tag = "spdlog-android";
auto android_logger = spdlog::android_logger_mt("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
```
---
#### Load log levels from env variable or from argv
```c++
#include "spdlog/cfg/env.h"
int main (int argc, char *argv[])
{
spdlog::cfg::load_env_levels();
// or from command line:
// ./example SPDLOG_LEVEL=info,mylogger=trace
// #include "spdlog/cfg/argv.h" // for loading levels from argv
// spdlog::cfg::load_argv_levels(argc, argv);
}
```
So then you can:
```console
$ export SPDLOG_LEVEL=info,mylogger=trace
$ ./example
```
---
## Benchmarks
Below are some [benchmarks](https://github.com/gabime/spdlog/blob/v1.x/bench/bench.cpp) done in Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz
#### Synchronous mode
```
[info] **************************************************************
[info] Single thread, 1,000,000 iterations
[info] **************************************************************
[info] basic_st Elapsed: 0.17 secs 5,777,626/sec
[info] rotating_st Elapsed: 0.18 secs 5,475,894/sec
[info] daily_st Elapsed: 0.20 secs 5,062,659/sec
[info] empty_logger Elapsed: 0.07 secs 14,127,300/sec
[info] **************************************************************
[info] C-string (400 bytes). Single thread, 1,000,000 iterations
[info] **************************************************************
[info] basic_st Elapsed: 0.41 secs 2,412,483/sec
[info] rotating_st Elapsed: 0.72 secs 1,389,196/sec
[info] daily_st Elapsed: 0.42 secs 2,393,298/sec
[info] null_st Elapsed: 0.04 secs 27,446,957/sec
[info] **************************************************************
[info] 10 threads, competing over the same logger object, 1,000,000 iterations
[info] **************************************************************
[info] basic_mt Elapsed: 0.60 secs 1,659,613/sec
[info] rotating_mt Elapsed: 0.62 secs 1,612,493/sec
[info] daily_mt Elapsed: 0.61 secs 1,638,305/sec
[info] null_mt Elapsed: 0.16 secs 6,272,758/sec
```
#### Asynchronous mode
```
[info] -------------------------------------------------
[info] Messages : 1,000,000
[info] Threads : 10
[info] Queue : 8,192 slots
[info] Queue memory : 8,192 x 272 = 2,176 KB
[info] -------------------------------------------------
[info]
[info] *********************************
[info] Queue Overflow Policy: block
[info] *********************************
[info] Elapsed: 1.70784 secs 585,535/sec
[info] Elapsed: 1.69805 secs 588,910/sec
[info] Elapsed: 1.7026 secs 587,337/sec
[info]
[info] *********************************
[info] Queue Overflow Policy: overrun
[info] *********************************
[info] Elapsed: 0.372816 secs 2,682,285/sec
[info] Elapsed: 0.379758 secs 2,633,255/sec
[info] Elapsed: 0.373532 secs 2,677,147/sec
```
## Documentation
Documentation can be found in the [wiki](https://github.com/gabime/spdlog/wiki/1.-QuickStart) pages.
---
Thanks to [JetBrains](https://www.jetbrains.com/?from=spdlog) for donating product licenses to help develop **spdlog** <a href="https://www.jetbrains.com/?from=spdlog"><img src="logos/jetbrains-variant-4.svg" width="94" align="center" /></a>

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@ -0,0 +1,18 @@
# ---------------------------------------------------------------------------------------
# IDE support for headers
# ---------------------------------------------------------------------------------------
set(SPDLOG_HEADERS_DIR "${CMAKE_CURRENT_LIST_DIR}/../include")
file(GLOB SPDLOG_TOP_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/*.h")
file(GLOB SPDLOG_DETAILS_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/details/*.h")
file(GLOB SPDLOG_SINKS_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/sinks/*.h")
file(GLOB SPDLOG_FMT_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/fmt/*.h")
file(GLOB SPDLOG_FMT_BUNDELED_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/fmt/bundled/*.h")
set(SPDLOG_ALL_HEADERS ${SPDLOG_TOP_HEADERS} ${SPDLOG_DETAILS_HEADERS} ${SPDLOG_SINKS_HEADERS} ${SPDLOG_FMT_HEADERS}
${SPDLOG_FMT_BUNDELED_HEADERS})
source_group("Header Files\\spdlog" FILES ${SPDLOG_TOP_HEADERS})
source_group("Header Files\\spdlog\\details" FILES ${SPDLOG_DETAILS_HEADERS})
source_group("Header Files\\spdlog\\sinks" FILES ${SPDLOG_SINKS_HEADERS})
source_group("Header Files\\spdlog\\fmt" FILES ${SPDLOG_FMT_HEADERS})
source_group("Header Files\\spdlog\\fmt\\bundled\\" FILES ${SPDLOG_FMT_BUNDELED_HEADERS})

258
src/Vendor/spdlog/cmake/pch.h.in vendored 100644
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@ -0,0 +1,258 @@
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// details/pattern_formatter-inl.h
// fmt/bin_to_hex.h
// fmt/bundled/format-inl.h
#include <cctype>
// details/file_helper-inl.h
// details/os-inl.h
// fmt/bundled/core.h
// fmt/bundled/posix.h
// logger-inl.h
// sinks/daily_file_sink.h
// sinks/stdout_sinks.h
#include <cstdio>
// details/os-inl.h
// fmt/bundled/posix.h
#include <cstdlib>
// details/os-inl.h
// details/pattern_formatter-inl.h
// fmt/bundled/core.h
// fmt/bundled/format-inl.h
#include <cstring>
// details/os-inl.h
// details/os.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// fmt/bundled/chrono.h
// sinks/daily_file_sink.h
// sinks/rotating_file_sink-inl.h
#include <ctime>
// fmt/bundled/format-inl.h
#include <climits>
// fmt/bundled/format-inl.h
#include <cwchar>
// fmt/bundled/format-inl.h
// fmt/bundled/format.h
#include <cmath>
// fmt/bundled/format-inl.h
#include <cstdarg>
// details/file_helper-inl.h
// fmt/bundled/format.h
// fmt/bundled/posix.h
// sinks/rotating_file_sink-inl.h
#include <cerrno>
// details/circular_q.h
// details/thread_pool-inl.h
// fmt/bundled/format-inl.h
#include <cassert>
// async_logger-inl.h
// cfg/helpers-inl.h
// log_levels.h
// common.h
// details/file_helper-inl.h
// details/log_msg.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/registry-inl.h
// details/registry.h
// details/tcp_client-windows.h
// details/tcp_client.h
// fmt/bundled/core.h
// sinks/android_sink.h
// sinks/ansicolor_sink.h
// sinks/basic_file_sink.h
// sinks/daily_file_sink.h
// sinks/dup_filter_sink.h
// sinks/msvc_sink.h
// sinks/ringbuffer_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/syslog_sink.h
// sinks/tcp_sink.h
// sinks/win_eventlog_sink.h
// sinks/wincolor_sink.h
// spdlog.h:
#include <string>
// cfg/helpers-inl.h
// fmt/bundled/chrono.h
#include <sstream>
// fmt/bundled/ostream.h
// sinks/ostream_sink.h
#include <ostream>
// cfg/log_levels.h
// details/registry-inl.h
// details/registry.h
#include <unordered_map>
// details/circular_q.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/thread_pool.h
// fmt/bundled/compile.h
// logger.h
// sinks/dist_sink.h
// sinks/ringbuffer_sink.h
// sinks/win_eventlog_sink.h
#include <vector>
// details/os-inl.h
// details/pattern_formatter-inl.h
// sinks/ansicolor_sink.h
// sinks/syslog_sink.h
// sinks/systemd_sink.h
// sinks/wincolor_sink.h
#include <array>
// details/file_helper-inl.h
// details/file_helper.h
// sinks/rotating_file_sink-inl.h
#include <tuple>
// details/os-inl.h
// fmt/bundled/format.h
// fmt/bundled/printf.h
#include <limits>
// common.h
// details/backtracer.h
// details/null_mutex.h
#include <atomic>
// common.h
// details/backtracer.h
// details/null_mutex.h
#include <locale>
// common.h
#include <initializer_list>
// common.h
#include <exception>
// common.h
// details/fmt_helper.h
// fmt/bundled/core.h
// fmt/bundled/ranges.h
#include <type_traits>
// cfg/helpers-inl.h
// details/null_mutex.h
// details/pattern_formatter-inl.h
#include <utility>
// async.h
// async_logger-inl.h
// common.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// fmt/bundled/format.h
// sinks/ansicolor_sink.h
// sinks/base_sink-inl.h
// sinks/dist_sink.h
// sinks/stdout_sinks-inl.h
// sinks/wincolor_sink.h
// spdlog.h
#include <memory>
// async.h
// common.h
// details/backtracer.h
// details/periodic_worker.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// sinks/tcp_sink.h
// spdlog.h
#include <functional>
// details/mpmc_blocking_q.h
// details/periodic_worker.h
#include <condition_variable>
// details/os-inl.h
// fmt/bundled/format.h
// fmt/bundled/printf.h
// sinks/dist_sink.h
#include <algorithm>
// common.h
// details/file_helper-inl.h
// details/fmt_helper.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/periodic_worker.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// fmt/bundled/chrono.h
// sinks/android_sink.h
// sinks/daily_file_sink.h
// sinks/dup_filter_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/tcp_sink.h
// spdlog.h
#include <chrono>
// details/file_helper-inl.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/periodic_worker.h
// details/thread_pool.h
// sinks/android_sink.h
#include <thread>
// async.h
// details/backtracer.h
// details/console_globals.h
// details/mpmc_blocking_q.h
// details/pattern_formatter-inl.h
// details/periodic_worker.h
// details/registry.h
// sinks/android_sink.h
// sinks/ansicolor_sink.h
// sinks/basic_file_sink.h
// sinks/daily_file_sink.h
// sinks/dist_sink.h
// sinks/dup_filter_sink.h
// sinks/msvc_sink.h
// sinks/null_sink.h
// sinks/ostream_sink.h
// sinks/ringbuffer_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/tcp_sink.h
// sinks/win_eventlog_sink.h
// sinks/wincolor_sink.h
//
// color_sinks.cpp
// file_sinks.cpp
// spdlog.cpp
// stdout_sinks.cpp
#include <mutex>
// spdlog
#include <spdlog/common.h>

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@ -0,0 +1,13 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix}
includedir=${prefix}/include
libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
Name: lib@PROJECT_NAME@
Description: Fast C++ logging library.
URL: https://github.com/gabime/@PROJECT_NAME@
Version: @SPDLOG_VERSION@
CFlags: -I${includedir} @PKG_CONFIG_DEFINES@
Libs: -L${libdir} -lspdlog -pthread
Requires: @PKG_CONFIG_REQUIRES@

View File

@ -0,0 +1,60 @@
set(CPACK_GENERATOR "TGZ;ZIP" CACHE STRING "Semicolon separated list of generators")
set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)
set(CPACK_INSTALL_CMAKE_PROJECTS "${CMAKE_BINARY_DIR}" "${PROJECT_NAME}" ALL .)
set(CPACK_PROJECT_URL "https://github.com/gabime/spdlog")
set(CPACK_PACKAGE_VENDOR "Gabi Melman")
set(CPACK_PACKAGE_CONTACT "Gabi Melman <gmelman1@gmail.com>")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Fast C++ logging library")
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH})
if(PROJECT_VERSION_TWEAK)
set(CPACK_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION}.${PROJECT_VERSION_TWEAK})
endif()
set(CPACK_PACKAGE_RELOCATABLE ON CACHE BOOL "Build relocatable package")
set(CPACK_RPM_PACKAGE_LICENSE "MIT")
set(CPACK_RPM_PACKAGE_GROUP "Development/Libraries")
set(CPACK_DEBIAN_PACKAGE_SECTION "libs")
set(CPACK_RPM_PACKAGE_URL ${CPACK_PROJECT_URL})
set(CPACK_DEBIAN_PACKAGE_HOMEPAGE ${CPACK_PROJECT_URL})
set(CPACK_RPM_PACKAGE_DESCRIPTION "Very fast, header-only/compiled, C++ logging library.")
set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "Very fast, header-only/compiled, C++ logging library.")
if(CPACK_PACKAGE_NAME)
set(CPACK_RPM_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_DEBIAN_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
else()
set(CPACK_RPM_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_DEBIAN_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_RPM_PACKAGE_NAME "${PROJECT_NAME}")
set(CPACK_DEBIAN_PACKAGE_NAME "${PROJECT_NAME}")
endif()
if(CPACK_RPM_PACKAGE_RELEASE)
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}-${CPACK_RPM_PACKAGE_RELEASE}")
endif()
if(CPACK_DEBIAN_PACKAGE_RELEASE)
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}-${CPACK_DEBIAN_PACKAGE_RELEASE}")
endif()
if(CPACK_RPM_PACKAGE_ARCHITECTURE)
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}.${CPACK_RPM_PACKAGE_ARCHITECTURE}")
endif()
if(CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}.${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
endif()
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}.rpm")
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}.deb")
if(NOT CPACK_PACKAGE_RELOCATABLE)
# Depend on pkgconfig rpm to create the system pkgconfig folder
set(CPACK_RPM_PACKAGE_REQUIRES pkgconfig)
set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION
"${CPACK_PACKAGING_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif()
include(CPack)

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@ -0,0 +1,15 @@
# Copyright(c) 2019 spdlog authors
# Distributed under the MIT License (http://opensource.org/licenses/MIT)
find_package(Threads REQUIRED)
set(SPDLOG_FMT_EXTERNAL @SPDLOG_FMT_EXTERNAL@)
set(config_targets_file @config_targets_file@)
if(SPDLOG_FMT_EXTERNAL)
include(CMakeFindDependencyMacro)
find_dependency(fmt CONFIG)
endif()
include("${CMAKE_CURRENT_LIST_DIR}/${config_targets_file}")

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@ -0,0 +1,62 @@
# Get spdlog version from include/spdlog/version.h and put it in SPDLOG_VERSION
function(spdlog_extract_version)
file(READ "${CMAKE_CURRENT_LIST_DIR}/include/spdlog/version.h" file_contents)
string(REGEX MATCH "SPDLOG_VER_MAJOR ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract major version number from spdlog/version.h")
endif()
set(ver_major ${CMAKE_MATCH_1})
string(REGEX MATCH "SPDLOG_VER_MINOR ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract minor version number from spdlog/version.h")
endif()
set(ver_minor ${CMAKE_MATCH_1})
string(REGEX MATCH "SPDLOG_VER_PATCH ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract patch version number from spdlog/version.h")
endif()
set(ver_patch ${CMAKE_MATCH_1})
set(SPDLOG_VERSION_MAJOR ${ver_major} PARENT_SCOPE)
set(SPDLOG_VERSION_MINOR ${ver_minor} PARENT_SCOPE)
set(SPDLOG_VERSION_PATCH ${ver_patch} PARENT_SCOPE)
set(SPDLOG_VERSION "${ver_major}.${ver_minor}.${ver_patch}" PARENT_SCOPE)
endfunction()
# Turn on warnings on the given target
function(spdlog_enable_warnings target_name)
if(SPDLOG_BUILD_WARNINGS)
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
list(APPEND MSVC_OPTIONS "/W3")
if(MSVC_VERSION GREATER 1900) # Allow non fatal security warnings for msvc 2015
list(APPEND MSVC_OPTIONS "/WX")
endif()
endif()
target_compile_options(
${target_name}
PRIVATE $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
-Wall
-Wextra
-Wconversion
-pedantic
-Wfatal-errors>
$<$<CXX_COMPILER_ID:MSVC>:${MSVC_OPTIONS}>)
endif()
endfunction()
# Enable address sanitizer (gcc/clang only)
function(spdlog_enable_sanitizer target_name)
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
message(FATAL_ERROR "Sanitizer supported only for gcc/clang")
endif()
message(STATUS "Address sanitizer enabled")
target_compile_options(${target_name} PRIVATE -fsanitize=address,undefined)
target_compile_options(${target_name} PRIVATE -fno-sanitize=signed-integer-overflow)
target_compile_options(${target_name} PRIVATE -fno-sanitize-recover=all)
target_compile_options(${target_name} PRIVATE -fno-omit-frame-pointer)
target_link_libraries(${target_name} PRIVATE -fsanitize=address,undefined -fuse-ld=gold)
endfunction()

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@ -0,0 +1,42 @@
#define APSTUDIO_READONLY_SYMBOLS
#include <windows.h>
#undef APSTUDIO_READONLY_SYMBOLS
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
VS_VERSION_INFO VERSIONINFO
FILEVERSION @SPDLOG_VERSION_MAJOR@,@SPDLOG_VERSION_MINOR@,@SPDLOG_VERSION_PATCH@,0
PRODUCTVERSION @SPDLOG_VERSION_MAJOR@,@SPDLOG_VERSION_MINOR@,@SPDLOG_VERSION_PATCH@,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS 0x40004L
FILETYPE 0x2L
FILESUBTYPE 0x0L
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904b0"
BEGIN
VALUE "FileDescription", "spdlog dll\0"
VALUE "FileVersion", "@SPDLOG_VERSION@.0\0"
VALUE "InternalName", "spdlog.dll\0"
VALUE "LegalCopyright", "Copyright (C) spdlog\0"
VALUE "ProductName", "spdlog\0"
VALUE "ProductVersion", "@SPDLOG_VERSION@.0\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x409, 1200
END
END

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@ -0,0 +1,93 @@
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
//
// Async logging using global thread pool
// All loggers created here share same global thread pool.
// Each log message is pushed to a queue along with a shared pointer to the
// logger.
// If a logger deleted while having pending messages in the queue, it's actual
// destruction will defer
// until all its messages are processed by the thread pool.
// This is because each message in the queue holds a shared_ptr to the
// originating logger.
#include <spdlog/async_logger.h>
#include <spdlog/details/registry.h>
#include <spdlog/details/thread_pool.h>
#include <memory>
#include <mutex>
#include <functional>
namespace spdlog {
namespace details {
static const size_t default_async_q_size = 8192;
}
// async logger factory - creates async loggers backed with thread pool.
// if a global thread pool doesn't already exist, create it with default queue
// size of 8192 items and single thread.
template<async_overflow_policy OverflowPolicy = async_overflow_policy::block>
struct async_factory_impl
{
template<typename Sink, typename... SinkArgs>
static std::shared_ptr<async_logger> create(std::string logger_name, SinkArgs &&...args)
{
auto &registry_inst = details::registry::instance();
// create global thread pool if not already exists..
auto &mutex = registry_inst.tp_mutex();
std::lock_guard<std::recursive_mutex> tp_lock(mutex);
auto tp = registry_inst.get_tp();
if (tp == nullptr)
{
tp = std::make_shared<details::thread_pool>(details::default_async_q_size, 1);
registry_inst.set_tp(tp);
}
auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
auto new_logger = std::make_shared<async_logger>(std::move(logger_name), std::move(sink), std::move(tp), OverflowPolicy);
registry_inst.initialize_logger(new_logger);
return new_logger;
}
};
using async_factory = async_factory_impl<async_overflow_policy::block>;
using async_factory_nonblock = async_factory_impl<async_overflow_policy::overrun_oldest>;
template<typename Sink, typename... SinkArgs>
inline std::shared_ptr<spdlog::logger> create_async(std::string logger_name, SinkArgs &&...sink_args)
{
return async_factory::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
}
template<typename Sink, typename... SinkArgs>
inline std::shared_ptr<spdlog::logger> create_async_nb(std::string logger_name, SinkArgs &&...sink_args)
{
return async_factory_nonblock::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
}
// set global thread pool.
inline void init_thread_pool(size_t q_size, size_t thread_count, std::function<void()> on_thread_start)
{
auto tp = std::make_shared<details::thread_pool>(q_size, thread_count, on_thread_start);
details::registry::instance().set_tp(std::move(tp));
}
// set global thread pool.
inline void init_thread_pool(size_t q_size, size_t thread_count)
{
init_thread_pool(q_size, thread_count, [] {});
}
// get the global thread pool.
inline std::shared_ptr<spdlog::details::thread_pool> thread_pool()
{
return details::registry::instance().get_tp();
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/async_logger.h>
#endif
#include <spdlog/sinks/sink.h>
#include <spdlog/details/thread_pool.h>
#include <memory>
#include <string>
SPDLOG_INLINE spdlog::async_logger::async_logger(
std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
: async_logger(std::move(logger_name), sinks_list.begin(), sinks_list.end(), std::move(tp), overflow_policy)
{}
SPDLOG_INLINE spdlog::async_logger::async_logger(
std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
: async_logger(std::move(logger_name), {std::move(single_sink)}, std::move(tp), overflow_policy)
{}
// send the log message to the thread pool
SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg)
{
if (auto pool_ptr = thread_pool_.lock())
{
pool_ptr->post_log(shared_from_this(), msg, overflow_policy_);
}
else
{
throw_spdlog_ex("async log: thread pool doesn't exist anymore");
}
}
// send flush request to the thread pool
SPDLOG_INLINE void spdlog::async_logger::flush_()
{
if (auto pool_ptr = thread_pool_.lock())
{
pool_ptr->post_flush(shared_from_this(), overflow_policy_);
}
else
{
throw_spdlog_ex("async flush: thread pool doesn't exist anymore");
}
}
//
// backend functions - called from the thread pool to do the actual job
//
SPDLOG_INLINE void spdlog::async_logger::backend_sink_it_(const details::log_msg &msg)
{
for (auto &sink : sinks_)
{
if (sink->should_log(msg.level))
{
SPDLOG_TRY
{
sink->log(msg);
}
SPDLOG_LOGGER_CATCH()
}
}
if (should_flush_(msg))
{
backend_flush_();
}
}
SPDLOG_INLINE void spdlog::async_logger::backend_flush_()
{
for (auto &sink : sinks_)
{
SPDLOG_TRY
{
sink->flush();
}
SPDLOG_LOGGER_CATCH()
}
}
SPDLOG_INLINE std::shared_ptr<spdlog::logger> spdlog::async_logger::clone(std::string new_name)
{
auto cloned = std::make_shared<spdlog::async_logger>(*this);
cloned->name_ = std::move(new_name);
return cloned;
}

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Fast asynchronous logger.
// Uses pre allocated queue.
// Creates a single back thread to pop messages from the queue and log them.
//
// Upon each log write the logger:
// 1. Checks if its log level is enough to log the message
// 2. Push a new copy of the message to a queue (or block the caller until
// space is available in the queue)
// Upon destruction, logs all remaining messages in the queue before
// destructing..
#include <spdlog/logger.h>
namespace spdlog {
// Async overflow policy - block by default.
enum class async_overflow_policy
{
block, // Block until message can be enqueued
overrun_oldest // Discard oldest message in the queue if full when trying to
// add new item.
};
namespace details {
class thread_pool;
}
class SPDLOG_API async_logger final : public std::enable_shared_from_this<async_logger>, public logger
{
friend class details::thread_pool;
public:
template<typename It>
async_logger(std::string logger_name, It begin, It end, std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block)
: logger(std::move(logger_name), begin, end)
, thread_pool_(std::move(tp))
, overflow_policy_(overflow_policy)
{}
async_logger(std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block);
async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block);
std::shared_ptr<logger> clone(std::string new_name) override;
protected:
void sink_it_(const details::log_msg &msg) override;
void flush_() override;
void backend_sink_it_(const details::log_msg &incoming_log_msg);
void backend_flush_();
private:
std::weak_ptr<details::thread_pool> thread_pool_;
async_overflow_policy overflow_policy_;
};
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "async_logger-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/cfg/helpers.h>
#include <spdlog/details/registry.h>
//
// Init log levels using each argv entry that starts with "SPDLOG_LEVEL="
//
// set all loggers to debug level:
// example.exe "SPDLOG_LEVEL=debug"
// set logger1 to trace level
// example.exe "SPDLOG_LEVEL=logger1=trace"
// turn off all logging except for logger1 and logger2:
// example.exe "SPDLOG_LEVEL=off,logger1=debug,logger2=info"
namespace spdlog {
namespace cfg {
// search for SPDLOG_LEVEL= in the args and use it to init the levels
inline void load_argv_levels(int argc, const char **argv)
{
const std::string spdlog_level_prefix = "SPDLOG_LEVEL=";
for (int i = 1; i < argc; i++)
{
std::string arg = argv[i];
if (arg.find(spdlog_level_prefix) == 0)
{
auto levels_string = arg.substr(spdlog_level_prefix.size());
helpers::load_levels(levels_string);
}
}
}
inline void load_argv_levels(int argc, char **argv)
{
load_argv_levels(argc, const_cast<const char **>(argv));
}
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/cfg/helpers.h>
#include <spdlog/details/registry.h>
#include <spdlog/details/os.h>
//
// Init levels and patterns from env variables SPDLOG_LEVEL
// Inspired from Rust's "env_logger" crate (https://crates.io/crates/env_logger).
// Note - fallback to "info" level on unrecognized levels
//
// Examples:
//
// set global level to debug:
// export SPDLOG_LEVEL=debug
//
// turn off all logging except for logger1:
// export SPDLOG_LEVEL="*=off,logger1=debug"
//
// turn off all logging except for logger1 and logger2:
// export SPDLOG_LEVEL="off,logger1=debug,logger2=info"
namespace spdlog {
namespace cfg {
inline void load_env_levels()
{
auto env_val = details::os::getenv("SPDLOG_LEVEL");
if (!env_val.empty())
{
helpers::load_levels(env_val);
}
}
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/cfg/helpers.h>
#endif
#include <spdlog/spdlog.h>
#include <spdlog/details/os.h>
#include <spdlog/details/registry.h>
#include <algorithm>
#include <string>
#include <utility>
#include <sstream>
namespace spdlog {
namespace cfg {
namespace helpers {
// inplace convert to lowercase
inline std::string &to_lower_(std::string &str)
{
std::transform(
str.begin(), str.end(), str.begin(), [](char ch) { return static_cast<char>((ch >= 'A' && ch <= 'Z') ? ch + ('a' - 'A') : ch); });
return str;
}
// inplace trim spaces
inline std::string &trim_(std::string &str)
{
const char *spaces = " \n\r\t";
str.erase(str.find_last_not_of(spaces) + 1);
str.erase(0, str.find_first_not_of(spaces));
return str;
}
// return (name,value) trimmed pair from given "name=value" string.
// return empty string on missing parts
// "key=val" => ("key", "val")
// " key = val " => ("key", "val")
// "key=" => ("key", "")
// "val" => ("", "val")
inline std::pair<std::string, std::string> extract_kv_(char sep, const std::string &str)
{
auto n = str.find(sep);
std::string k, v;
if (n == std::string::npos)
{
v = str;
}
else
{
k = str.substr(0, n);
v = str.substr(n + 1);
}
return std::make_pair(trim_(k), trim_(v));
}
// return vector of key/value pairs from sequence of "K1=V1,K2=V2,.."
// "a=AAA,b=BBB,c=CCC,.." => {("a","AAA"),("b","BBB"),("c", "CCC"),...}
inline std::unordered_map<std::string, std::string> extract_key_vals_(const std::string &str)
{
std::string token;
std::istringstream token_stream(str);
std::unordered_map<std::string, std::string> rv{};
while (std::getline(token_stream, token, ','))
{
if (token.empty())
{
continue;
}
auto kv = extract_kv_('=', token);
rv[kv.first] = kv.second;
}
return rv;
}
SPDLOG_INLINE void load_levels(const std::string &input)
{
if (input.empty() || input.size() > 512)
{
return;
}
auto key_vals = extract_key_vals_(input);
std::unordered_map<std::string, level::level_enum> levels;
level::level_enum global_level = level::info;
bool global_level_found = false;
for (auto &name_level : key_vals)
{
auto &logger_name = name_level.first;
auto level_name = to_lower_(name_level.second);
auto level = level::from_str(level_name);
// ignore unrecognized level names
if (level == level::off && level_name != "off")
{
continue;
}
if (logger_name.empty()) // no logger name indicate global level
{
global_level_found = true;
global_level = level;
}
else
{
levels[logger_name] = level;
}
}
details::registry::instance().set_levels(std::move(levels), global_level_found ? &global_level : nullptr);
}
} // namespace helpers
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <unordered_map>
namespace spdlog {
namespace cfg {
namespace helpers {
//
// Init levels from given string
//
// Examples:
//
// set global level to debug: "debug"
// turn off all logging except for logger1: "off,logger1=debug"
// turn off all logging except for logger1 and logger2: "off,logger1=debug,logger2=info"
//
SPDLOG_API void load_levels(const std::string &txt);
} // namespace helpers
} // namespace cfg
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "helpers-inl.h"
#endif // SPDLOG_HEADER_ONLY

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/common.h>
#endif
namespace spdlog {
namespace level {
static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES;
static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES;
SPDLOG_INLINE const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT
{
return level_string_views[l];
}
SPDLOG_INLINE void set_string_view(spdlog::level::level_enum l, const string_view_t &s) SPDLOG_NOEXCEPT
{
level_string_views[l] = s;
}
SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT
{
return short_level_names[l];
}
SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT
{
int level = 0;
for (const auto &level_str : level_string_views)
{
if (level_str == name)
{
return static_cast<level::level_enum>(level);
}
level++;
}
// check also for "warn" and "err" before giving up..
if (name == "warn")
{
return level::warn;
}
if (name == "err")
{
return level::err;
}
return level::off;
}
} // namespace level
SPDLOG_INLINE spdlog_ex::spdlog_ex(std::string msg)
: msg_(std::move(msg))
{}
SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno)
{
memory_buf_t outbuf;
fmt::format_system_error(outbuf, last_errno, msg);
msg_ = fmt::to_string(outbuf);
}
SPDLOG_INLINE const char *spdlog_ex::what() const SPDLOG_NOEXCEPT
{
return msg_.c_str();
}
SPDLOG_INLINE void throw_spdlog_ex(const std::string &msg, int last_errno)
{
SPDLOG_THROW(spdlog_ex(msg, last_errno));
}
SPDLOG_INLINE void throw_spdlog_ex(std::string msg)
{
SPDLOG_THROW(spdlog_ex(std::move(msg)));
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/tweakme.h>
#include <spdlog/details/null_mutex.h>
#include <atomic>
#include <chrono>
#include <initializer_list>
#include <memory>
#include <exception>
#include <string>
#include <type_traits>
#include <functional>
#ifdef SPDLOG_COMPILED_LIB
#undef SPDLOG_HEADER_ONLY
#if defined(_WIN32) && defined(SPDLOG_SHARED_LIB)
#ifdef spdlog_EXPORTS
#define SPDLOG_API __declspec(dllexport)
#else
#define SPDLOG_API __declspec(dllimport)
#endif
#else // !defined(_WIN32) || !defined(SPDLOG_SHARED_LIB)
#define SPDLOG_API
#endif
#define SPDLOG_INLINE
#else // !defined(SPDLOG_COMPILED_LIB)
#define SPDLOG_API
#define SPDLOG_HEADER_ONLY
#define SPDLOG_INLINE inline
#endif // #ifdef SPDLOG_COMPILED_LIB
#include <spdlog/fmt/fmt.h>
// visual studio upto 2013 does not support noexcept nor constexpr
#if defined(_MSC_VER) && (_MSC_VER < 1900)
#define SPDLOG_NOEXCEPT _NOEXCEPT
#define SPDLOG_CONSTEXPR
#else
#define SPDLOG_NOEXCEPT noexcept
#define SPDLOG_CONSTEXPR constexpr
#endif
#if defined(__GNUC__) || defined(__clang__)
#define SPDLOG_DEPRECATED __attribute__((deprecated))
#elif defined(_MSC_VER)
#define SPDLOG_DEPRECATED __declspec(deprecated)
#else
#define SPDLOG_DEPRECATED
#endif
// disable thread local on msvc 2013
#ifndef SPDLOG_NO_TLS
#if (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt)
#define SPDLOG_NO_TLS 1
#endif
#endif
#ifndef SPDLOG_FUNCTION
#define SPDLOG_FUNCTION static_cast<const char *>(__FUNCTION__)
#endif
#ifdef SPDLOG_NO_EXCEPTIONS
#define SPDLOG_TRY
#define SPDLOG_THROW(ex) \
do \
{ \
printf("spdlog fatal error: %s\n", ex.what()); \
std::abort(); \
} while (0)
#define SPDLOG_CATCH_ALL()
#else
#define SPDLOG_TRY try
#define SPDLOG_THROW(ex) throw(ex)
#define SPDLOG_CATCH_ALL() catch (...)
#endif
namespace spdlog {
class formatter;
namespace sinks {
class sink;
}
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
using filename_t = std::wstring;
// allow macro expansion to occur in SPDLOG_FILENAME_T
#define SPDLOG_FILENAME_T_INNER(s) L##s
#define SPDLOG_FILENAME_T(s) SPDLOG_FILENAME_T_INNER(s)
#else
using filename_t = std::string;
#define SPDLOG_FILENAME_T(s) s
#endif
using log_clock = std::chrono::system_clock;
using sink_ptr = std::shared_ptr<sinks::sink>;
using sinks_init_list = std::initializer_list<sink_ptr>;
using err_handler = std::function<void(const std::string &err_msg)>;
using string_view_t = fmt::basic_string_view<char>;
using wstring_view_t = fmt::basic_string_view<wchar_t>;
using memory_buf_t = fmt::basic_memory_buffer<char, 250>;
using wmemory_buf_t = fmt::basic_memory_buffer<wchar_t, 250>;
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
#ifndef _WIN32
#error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
#else
template<typename T>
struct is_convertible_to_wstring_view : std::is_convertible<T, wstring_view_t>
{};
#endif // _WIN32
#else
template<typename>
struct is_convertible_to_wstring_view : std::false_type
{};
#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
#if defined(SPDLOG_NO_ATOMIC_LEVELS)
using level_t = details::null_atomic_int;
#else
using level_t = std::atomic<int>;
#endif
#define SPDLOG_LEVEL_TRACE 0
#define SPDLOG_LEVEL_DEBUG 1
#define SPDLOG_LEVEL_INFO 2
#define SPDLOG_LEVEL_WARN 3
#define SPDLOG_LEVEL_ERROR 4
#define SPDLOG_LEVEL_CRITICAL 5
#define SPDLOG_LEVEL_OFF 6
#if !defined(SPDLOG_ACTIVE_LEVEL)
#define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
#endif
// Log level enum
namespace level {
enum level_enum
{
trace = SPDLOG_LEVEL_TRACE,
debug = SPDLOG_LEVEL_DEBUG,
info = SPDLOG_LEVEL_INFO,
warn = SPDLOG_LEVEL_WARN,
err = SPDLOG_LEVEL_ERROR,
critical = SPDLOG_LEVEL_CRITICAL,
off = SPDLOG_LEVEL_OFF,
n_levels
};
#if !defined(SPDLOG_LEVEL_NAMES)
#define SPDLOG_LEVEL_NAMES \
{ \
"trace", "debug", "info", "warning", "error", "critical", "off" \
}
#endif
#if !defined(SPDLOG_SHORT_LEVEL_NAMES)
#define SPDLOG_SHORT_LEVEL_NAMES \
{ \
"T", "D", "I", "W", "E", "C", "O" \
}
#endif
SPDLOG_API const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
SPDLOG_API void set_string_view(spdlog::level::level_enum l, const string_view_t &s) SPDLOG_NOEXCEPT;
SPDLOG_API const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
SPDLOG_API spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT;
} // namespace level
//
// Color mode used by sinks with color support.
//
enum class color_mode
{
always,
automatic,
never
};
//
// Pattern time - specific time getting to use for pattern_formatter.
// local time by default
//
enum class pattern_time_type
{
local, // log localtime
utc // log utc
};
//
// Log exception
//
class SPDLOG_API spdlog_ex : public std::exception
{
public:
explicit spdlog_ex(std::string msg);
spdlog_ex(const std::string &msg, int last_errno);
const char *what() const SPDLOG_NOEXCEPT override;
private:
std::string msg_;
};
[[noreturn]] SPDLOG_API void throw_spdlog_ex(const std::string &msg, int last_errno);
[[noreturn]] SPDLOG_API void throw_spdlog_ex(std::string msg);
struct source_loc
{
SPDLOG_CONSTEXPR source_loc() = default;
SPDLOG_CONSTEXPR source_loc(const char *filename_in, int line_in, const char *funcname_in)
: filename{filename_in}
, line{line_in}
, funcname{funcname_in}
{}
SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT
{
return line == 0;
}
const char *filename{nullptr};
int line{0};
const char *funcname{nullptr};
};
namespace details {
// make_unique support for pre c++14
#if __cplusplus >= 201402L // C++14 and beyond
using std::make_unique;
#else
template<typename T, typename... Args>
std::unique_ptr<T> make_unique(Args &&...args)
{
static_assert(!std::is_array<T>::value, "arrays not supported");
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
#endif
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "common-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/backtracer.h>
#endif
namespace spdlog {
namespace details {
SPDLOG_INLINE backtracer::backtracer(const backtracer &other)
{
std::lock_guard<std::mutex> lock(other.mutex_);
enabled_ = other.enabled();
messages_ = other.messages_;
}
SPDLOG_INLINE backtracer::backtracer(backtracer &&other) SPDLOG_NOEXCEPT
{
std::lock_guard<std::mutex> lock(other.mutex_);
enabled_ = other.enabled();
messages_ = std::move(other.messages_);
}
SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other)
{
std::lock_guard<std::mutex> lock(mutex_);
enabled_ = other.enabled();
messages_ = std::move(other.messages_);
return *this;
}
SPDLOG_INLINE void backtracer::enable(size_t size)
{
std::lock_guard<std::mutex> lock{mutex_};
enabled_.store(true, std::memory_order_relaxed);
messages_ = circular_q<log_msg_buffer>{size};
}
SPDLOG_INLINE void backtracer::disable()
{
std::lock_guard<std::mutex> lock{mutex_};
enabled_.store(false, std::memory_order_relaxed);
}
SPDLOG_INLINE bool backtracer::enabled() const
{
return enabled_.load(std::memory_order_relaxed);
}
SPDLOG_INLINE void backtracer::push_back(const log_msg &msg)
{
std::lock_guard<std::mutex> lock{mutex_};
messages_.push_back(log_msg_buffer{msg});
}
// pop all items in the q and apply the given fun on each of them.
SPDLOG_INLINE void backtracer::foreach_pop(std::function<void(const details::log_msg &)> fun)
{
std::lock_guard<std::mutex> lock{mutex_};
while (!messages_.empty())
{
auto &front_msg = messages_.front();
fun(front_msg);
messages_.pop_front();
}
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/log_msg_buffer.h>
#include <spdlog/details/circular_q.h>
#include <atomic>
#include <mutex>
#include <functional>
// Store log messages in circular buffer.
// Useful for storing debug data in case of error/warning happens.
namespace spdlog {
namespace details {
class SPDLOG_API backtracer
{
mutable std::mutex mutex_;
std::atomic<bool> enabled_{false};
circular_q<log_msg_buffer> messages_;
public:
backtracer() = default;
backtracer(const backtracer &other);
backtracer(backtracer &&other) SPDLOG_NOEXCEPT;
backtracer &operator=(backtracer other);
void enable(size_t size);
void disable();
bool enabled() const;
void push_back(const log_msg &msg);
// pop all items in the q and apply the given fun on each of them.
void foreach_pop(std::function<void(const details::log_msg &)> fun);
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "backtracer-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
// circular q view of std::vector.
#pragma once
#include <vector>
#include <cassert>
namespace spdlog {
namespace details {
template<typename T>
class circular_q
{
size_t max_items_ = 0;
typename std::vector<T>::size_type head_ = 0;
typename std::vector<T>::size_type tail_ = 0;
size_t overrun_counter_ = 0;
std::vector<T> v_;
public:
using value_type = T;
// empty ctor - create a disabled queue with no elements allocated at all
circular_q() = default;
explicit circular_q(size_t max_items)
: max_items_(max_items + 1) // one item is reserved as marker for full q
, v_(max_items_)
{}
circular_q(const circular_q &) = default;
circular_q &operator=(const circular_q &) = default;
// move cannot be default,
// since we need to reset head_, tail_, etc to zero in the moved object
circular_q(circular_q &&other) SPDLOG_NOEXCEPT
{
copy_moveable(std::move(other));
}
circular_q &operator=(circular_q &&other) SPDLOG_NOEXCEPT
{
copy_moveable(std::move(other));
return *this;
}
// push back, overrun (oldest) item if no room left
void push_back(T &&item)
{
if (max_items_ > 0)
{
v_[tail_] = std::move(item);
tail_ = (tail_ + 1) % max_items_;
if (tail_ == head_) // overrun last item if full
{
head_ = (head_ + 1) % max_items_;
++overrun_counter_;
}
}
}
// Return reference to the front item.
// If there are no elements in the container, the behavior is undefined.
const T &front() const
{
return v_[head_];
}
T &front()
{
return v_[head_];
}
// Return number of elements actually stored
size_t size() const
{
if (tail_ >= head_)
{
return tail_ - head_;
}
else
{
return max_items_ - (head_ - tail_);
}
}
// Return const reference to item by index.
// If index is out of range 0…size()-1, the behavior is undefined.
const T &at(size_t i) const
{
assert(i < size());
return v_[(head_ + i) % max_items_];
}
// Pop item from front.
// If there are no elements in the container, the behavior is undefined.
void pop_front()
{
head_ = (head_ + 1) % max_items_;
}
bool empty() const
{
return tail_ == head_;
}
bool full() const
{
// head is ahead of the tail by 1
if (max_items_ > 0)
{
return ((tail_ + 1) % max_items_) == head_;
}
return false;
}
size_t overrun_counter() const
{
return overrun_counter_;
}
private:
// copy from other&& and reset it to disabled state
void copy_moveable(circular_q &&other) SPDLOG_NOEXCEPT
{
max_items_ = other.max_items_;
head_ = other.head_;
tail_ = other.tail_;
overrun_counter_ = other.overrun_counter_;
v_ = std::move(other.v_);
// put &&other in disabled, but valid state
other.max_items_ = 0;
other.head_ = other.tail_ = 0;
other.overrun_counter_ = 0;
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/null_mutex.h>
#include <mutex>
namespace spdlog {
namespace details {
struct console_mutex
{
using mutex_t = std::mutex;
static mutex_t &mutex()
{
static mutex_t s_mutex;
return s_mutex;
}
};
struct console_nullmutex
{
using mutex_t = null_mutex;
static mutex_t &mutex()
{
static mutex_t s_mutex;
return s_mutex;
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/file_helper.h>
#endif
#include <spdlog/details/os.h>
#include <spdlog/common.h>
#include <cerrno>
#include <chrono>
#include <cstdio>
#include <string>
#include <thread>
#include <tuple>
namespace spdlog {
namespace details {
SPDLOG_INLINE file_helper::~file_helper()
{
close();
}
SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate)
{
close();
filename_ = fname;
auto *mode = SPDLOG_FILENAME_T("ab");
auto *trunc_mode = SPDLOG_FILENAME_T("wb");
for (int tries = 0; tries < open_tries_; ++tries)
{
// create containing folder if not exists already.
os::create_dir(os::dir_name(fname));
if (truncate)
{
// Truncate by opening-and-closing a tmp file in "wb" mode, always
// opening the actual log-we-write-to in "ab" mode, since that
// interacts more politely with eternal processes that might
// rotate/truncate the file underneath us.
std::FILE *tmp;
if (os::fopen_s(&tmp, fname, trunc_mode))
{
continue;
}
std::fclose(tmp);
}
if (!os::fopen_s(&fd_, fname, mode))
{
return;
}
details::os::sleep_for_millis(open_interval_);
}
throw_spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing", errno);
}
SPDLOG_INLINE void file_helper::reopen(bool truncate)
{
if (filename_.empty())
{
throw_spdlog_ex("Failed re opening file - was not opened before");
}
this->open(filename_, truncate);
}
SPDLOG_INLINE void file_helper::flush()
{
std::fflush(fd_);
}
SPDLOG_INLINE void file_helper::close()
{
if (fd_ != nullptr)
{
std::fclose(fd_);
fd_ = nullptr;
}
}
SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf)
{
size_t msg_size = buf.size();
auto data = buf.data();
if (std::fwrite(data, 1, msg_size, fd_) != msg_size)
{
throw_spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno);
}
}
SPDLOG_INLINE size_t file_helper::size() const
{
if (fd_ == nullptr)
{
throw_spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_));
}
return os::filesize(fd_);
}
SPDLOG_INLINE const filename_t &file_helper::filename() const
{
return filename_;
}
//
// return file path and its extension:
//
// "mylog.txt" => ("mylog", ".txt")
// "mylog" => ("mylog", "")
// "mylog." => ("mylog.", "")
// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
//
// the starting dot in filenames is ignored (hidden files):
//
// ".mylog" => (".mylog". "")
// "my_folder/.mylog" => ("my_folder/.mylog", "")
// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension(const filename_t &fname)
{
auto ext_index = fname.rfind('.');
// no valid extension found - return whole path and empty string as
// extension
if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1)
{
return std::make_tuple(fname, filename_t());
}
// treat cases like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
auto folder_index = fname.find_last_of(details::os::folder_seps_filename);
if (folder_index != filename_t::npos && folder_index >= ext_index - 1)
{
return std::make_tuple(fname, filename_t());
}
// finally - return a valid base and extension tuple
return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <tuple>
namespace spdlog {
namespace details {
// Helper class for file sinks.
// When failing to open a file, retry several times(5) with a delay interval(10 ms).
// Throw spdlog_ex exception on errors.
class SPDLOG_API file_helper
{
public:
explicit file_helper() = default;
file_helper(const file_helper &) = delete;
file_helper &operator=(const file_helper &) = delete;
~file_helper();
void open(const filename_t &fname, bool truncate = false);
void reopen(bool truncate);
void flush();
void close();
void write(const memory_buf_t &buf);
size_t size() const;
const filename_t &filename() const;
//
// return file path and its extension:
//
// "mylog.txt" => ("mylog", ".txt")
// "mylog" => ("mylog", "")
// "mylog." => ("mylog.", "")
// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
//
// the starting dot in filenames is ignored (hidden files):
//
// ".mylog" => (".mylog". "")
// "my_folder/.mylog" => ("my_folder/.mylog", "")
// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
private:
const int open_tries_ = 5;
const int open_interval_ = 10;
std::FILE *fd_{nullptr};
filename_t filename_;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "file_helper-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <chrono>
#include <type_traits>
#include <spdlog/fmt/fmt.h>
#include <spdlog/common.h>
// Some fmt helpers to efficiently format and pad ints and strings
namespace spdlog {
namespace details {
namespace fmt_helper {
inline spdlog::string_view_t to_string_view(const memory_buf_t &buf) SPDLOG_NOEXCEPT
{
return spdlog::string_view_t{buf.data(), buf.size()};
}
inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest)
{
auto *buf_ptr = view.data();
dest.append(buf_ptr, buf_ptr + view.size());
}
template<typename T>
inline void append_int(T n, memory_buf_t &dest)
{
fmt::format_int i(n);
dest.append(i.data(), i.data() + i.size());
}
template<typename T>
inline unsigned int count_digits(T n)
{
using count_type = typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type;
return static_cast<unsigned int>(fmt::
// fmt 7.0.0 renamed the internal namespace to detail.
// See: https://github.com/fmtlib/fmt/issues/1538
#if FMT_VERSION < 70000
internal
#else
detail
#endif
::count_digits(static_cast<count_type>(n)));
}
inline void pad2(int n, memory_buf_t &dest)
{
if (n >= 0 && n < 100) // 0-99
{
dest.push_back(static_cast<char>('0' + n / 10));
dest.push_back(static_cast<char>('0' + n % 10));
}
else // unlikely, but just in case, let fmt deal with it
{
fmt::format_to(dest, "{:02}", n);
}
}
template<typename T>
inline void pad_uint(T n, unsigned int width, memory_buf_t &dest)
{
static_assert(std::is_unsigned<T>::value, "pad_uint must get unsigned T");
for (auto digits = count_digits(n); digits < width; digits++)
{
dest.push_back('0');
}
append_int(n, dest);
}
template<typename T>
inline void pad3(T n, memory_buf_t &dest)
{
static_assert(std::is_unsigned<T>::value, "pad3 must get unsigned T");
if (n < 1000)
{
dest.push_back(static_cast<char>(n / 100 + '0'));
n = n % 100;
dest.push_back(static_cast<char>((n / 10) + '0'));
dest.push_back(static_cast<char>((n % 10) + '0'));
}
else
{
append_int(n, dest);
}
}
template<typename T>
inline void pad6(T n, memory_buf_t &dest)
{
pad_uint(n, 6, dest);
}
template<typename T>
inline void pad9(T n, memory_buf_t &dest)
{
pad_uint(n, 9, dest);
}
// return fraction of a second of the given time_point.
// e.g.
// fraction<std::milliseconds>(tp) -> will return the millis part of the second
template<typename ToDuration>
inline ToDuration time_fraction(log_clock::time_point tp)
{
using std::chrono::duration_cast;
using std::chrono::seconds;
auto duration = tp.time_since_epoch();
auto secs = duration_cast<seconds>(duration);
return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
}
} // namespace fmt_helper
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/log_msg.h>
#endif
#include <spdlog/details/os.h>
namespace spdlog {
namespace details {
SPDLOG_INLINE log_msg::log_msg(spdlog::log_clock::time_point log_time, spdlog::source_loc loc, string_view_t a_logger_name,
spdlog::level::level_enum lvl, spdlog::string_view_t msg)
: logger_name(a_logger_name)
, level(lvl)
, time(log_time)
#ifndef SPDLOG_NO_THREAD_ID
, thread_id(os::thread_id())
#endif
, source(loc)
, payload(msg)
{}
SPDLOG_INLINE log_msg::log_msg(
spdlog::source_loc loc, string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
: log_msg(os::now(), loc, a_logger_name, lvl, msg)
{}
SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
: log_msg(os::now(), source_loc{}, a_logger_name, lvl, msg)
{}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <string>
namespace spdlog {
namespace details {
struct SPDLOG_API log_msg
{
log_msg() = default;
log_msg(log_clock::time_point log_time, source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg);
log_msg(source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg);
log_msg(string_view_t logger_name, level::level_enum lvl, string_view_t msg);
log_msg(const log_msg &other) = default;
string_view_t logger_name;
level::level_enum level{level::off};
log_clock::time_point time;
size_t thread_id{0};
// wrapping the formatted text with color (updated by pattern_formatter).
mutable size_t color_range_start{0};
mutable size_t color_range_end{0};
source_loc source;
string_view_t payload;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "log_msg-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/log_msg_buffer.h>
#endif
namespace spdlog {
namespace details {
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg &orig_msg)
: log_msg{orig_msg}
{
buffer.append(logger_name.begin(), logger_name.end());
buffer.append(payload.begin(), payload.end());
update_string_views();
}
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg_buffer &other)
: log_msg{other}
{
buffer.append(logger_name.begin(), logger_name.end());
buffer.append(payload.begin(), payload.end());
update_string_views();
}
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT
: log_msg{other}
, buffer{std::move(other.buffer)}
{
update_string_views();
}
SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &other)
{
log_msg::operator=(other);
buffer.clear();
buffer.append(other.buffer.data(), other.buffer.data() + other.buffer.size());
update_string_views();
return *this;
}
SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT
{
log_msg::operator=(other);
buffer = std::move(other.buffer);
update_string_views();
return *this;
}
SPDLOG_INLINE void log_msg_buffer::update_string_views()
{
logger_name = string_view_t{buffer.data(), logger_name.size()};
payload = string_view_t{buffer.data() + logger_name.size(), payload.size()};
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/log_msg.h>
namespace spdlog {
namespace details {
// Extend log_msg with internal buffer to store its payload.
// This is needed since log_msg holds string_views that points to stack data.
class SPDLOG_API log_msg_buffer : public log_msg
{
memory_buf_t buffer;
void update_string_views();
public:
log_msg_buffer() = default;
explicit log_msg_buffer(const log_msg &orig_msg);
log_msg_buffer(const log_msg_buffer &other);
log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
log_msg_buffer &operator=(const log_msg_buffer &other);
log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "log_msg_buffer-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// multi producer-multi consumer blocking queue.
// enqueue(..) - will block until room found to put the new message.
// enqueue_nowait(..) - will return immediately with false if no room left in
// the queue.
// dequeue_for(..) - will block until the queue is not empty or timeout have
// passed.
#include <spdlog/details/circular_q.h>
#include <condition_variable>
#include <mutex>
namespace spdlog {
namespace details {
template<typename T>
class mpmc_blocking_queue
{
public:
using item_type = T;
explicit mpmc_blocking_queue(size_t max_items)
: q_(max_items)
{}
#ifndef __MINGW32__
// try to enqueue and block if no room left
void enqueue(T &&item)
{
{
std::unique_lock<std::mutex> lock(queue_mutex_);
pop_cv_.wait(lock, [this] { return !this->q_.full(); });
q_.push_back(std::move(item));
}
push_cv_.notify_one();
}
// enqueue immediately. overrun oldest message in the queue if no room left.
void enqueue_nowait(T &&item)
{
{
std::unique_lock<std::mutex> lock(queue_mutex_);
q_.push_back(std::move(item));
}
push_cv_.notify_one();
}
// try to dequeue item. if no item found. wait upto timeout and try again
// Return true, if succeeded dequeue item, false otherwise
bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
{
{
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
{
return false;
}
popped_item = std::move(q_.front());
q_.pop_front();
}
pop_cv_.notify_one();
return true;
}
#else
// apparently mingw deadlocks if the mutex is released before cv.notify_one(),
// so release the mutex at the very end each function.
// try to enqueue and block if no room left
void enqueue(T &&item)
{
std::unique_lock<std::mutex> lock(queue_mutex_);
pop_cv_.wait(lock, [this] { return !this->q_.full(); });
q_.push_back(std::move(item));
push_cv_.notify_one();
}
// enqueue immediately. overrun oldest message in the queue if no room left.
void enqueue_nowait(T &&item)
{
std::unique_lock<std::mutex> lock(queue_mutex_);
q_.push_back(std::move(item));
push_cv_.notify_one();
}
// try to dequeue item. if no item found. wait upto timeout and try again
// Return true, if succeeded dequeue item, false otherwise
bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
{
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
{
return false;
}
popped_item = std::move(q_.front());
q_.pop_front();
pop_cv_.notify_one();
return true;
}
#endif
size_t overrun_counter()
{
std::unique_lock<std::mutex> lock(queue_mutex_);
return q_.overrun_counter();
}
size_t size()
{
std::unique_lock<std::mutex> lock(queue_mutex_);
return q_.size();
}
private:
std::mutex queue_mutex_;
std::condition_variable push_cv_;
std::condition_variable pop_cv_;
spdlog::details::circular_q<T> q_;
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <atomic>
#include <utility>
// null, no cost dummy "mutex" and dummy "atomic" int
namespace spdlog {
namespace details {
struct null_mutex
{
void lock() const {}
void unlock() const {}
bool try_lock() const
{
return true;
}
};
struct null_atomic_int
{
int value;
null_atomic_int() = default;
explicit null_atomic_int(int new_value)
: value(new_value)
{}
int load(std::memory_order = std::memory_order_relaxed) const
{
return value;
}
void store(int new_value, std::memory_order = std::memory_order_relaxed)
{
value = new_value;
}
int exchange(int new_value, std::memory_order = std::memory_order_relaxed)
{
std::swap(new_value, value);
return new_value; // return value before the call
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/os.h>
#endif
#include <spdlog/common.h>
#include <algorithm>
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <string>
#include <thread>
#include <array>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _WIN32
#include <io.h> // _get_osfhandle and _isatty support
#include <process.h> // _get_pid support
#include <spdlog/details/windows_include.h>
#ifdef __MINGW32__
#include <share.h>
#endif
#if defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)
#include <limits>
#endif
#include <direct.h> // for _mkdir/_wmkdir
#else // unix
#include <fcntl.h>
#include <unistd.h>
#ifdef __linux__
#include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
#elif defined(_AIX)
#include <pthread.h> // for pthread_getthreadid_np
#elif defined(__DragonFly__) || defined(__FreeBSD__)
#include <pthread_np.h> // for pthread_getthreadid_np
#elif defined(__NetBSD__)
#include <lwp.h> // for _lwp_self
#elif defined(__sun)
#include <thread.h> // for thr_self
#endif
#endif // unix
#ifndef __has_feature // Clang - feature checking macros.
#define __has_feature(x) 0 // Compatibility with non-clang compilers.
#endif
namespace spdlog {
namespace details {
namespace os {
SPDLOG_INLINE spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT
{
#if defined __linux__ && defined SPDLOG_CLOCK_COARSE
timespec ts;
::clock_gettime(CLOCK_REALTIME_COARSE, &ts);
return std::chrono::time_point<log_clock, typename log_clock::duration>(
std::chrono::duration_cast<typename log_clock::duration>(std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
#else
return log_clock::now();
#endif
}
SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
{
#ifdef _WIN32
std::tm tm;
::localtime_s(&tm, &time_tt);
#else
std::tm tm;
::localtime_r(&time_tt, &tm);
#endif
return tm;
}
SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT
{
std::time_t now_t = ::time(nullptr);
return localtime(now_t);
}
SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
{
#ifdef _WIN32
std::tm tm;
::gmtime_s(&tm, &time_tt);
#else
std::tm tm;
::gmtime_r(&time_tt, &tm);
#endif
return tm;
}
SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT
{
std::time_t now_t = ::time(nullptr);
return gmtime(now_t);
}
// fopen_s on non windows for writing
SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode)
{
#ifdef _WIN32
#ifdef SPDLOG_WCHAR_FILENAMES
*fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
#else
*fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
#endif
#if defined(SPDLOG_PREVENT_CHILD_FD)
if (*fp != nullptr)
{
auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(::_fileno(*fp)));
if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
{
::fclose(*fp);
*fp = nullptr;
}
}
#endif
#else // unix
#if defined(SPDLOG_PREVENT_CHILD_FD)
const int mode_flag = mode == SPDLOG_FILENAME_T("ab") ? O_APPEND : O_TRUNC;
const int fd = ::open((filename.c_str()), O_CREAT | O_WRONLY | O_CLOEXEC | mode_flag, mode_t(0644));
if (fd == -1)
{
return false;
}
*fp = ::fdopen(fd, mode.c_str());
if (*fp == nullptr)
{
::close(fd);
}
#else
*fp = ::fopen((filename.c_str()), mode.c_str());
#endif
#endif
return *fp == nullptr;
}
SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
{
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
return ::_wremove(filename.c_str());
#else
return std::remove(filename.c_str());
#endif
}
SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT
{
return path_exists(filename) ? remove(filename) : 0;
}
SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT
{
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
return ::_wrename(filename1.c_str(), filename2.c_str());
#else
return std::rename(filename1.c_str(), filename2.c_str());
#endif
}
// Return true if path exists (file or directory)
SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT
{
#ifdef _WIN32
#ifdef SPDLOG_WCHAR_FILENAMES
auto attribs = ::GetFileAttributesW(filename.c_str());
#else
auto attribs = ::GetFileAttributesA(filename.c_str());
#endif
return attribs != INVALID_FILE_ATTRIBUTES;
#else // common linux/unix all have the stat system call
struct stat buffer;
return (::stat(filename.c_str(), &buffer) == 0);
#endif
}
// Return file size according to open FILE* object
SPDLOG_INLINE size_t filesize(FILE *f)
{
if (f == nullptr)
{
throw_spdlog_ex("Failed getting file size. fd is null");
}
#if defined(_WIN32) && !defined(__CYGWIN__)
int fd = ::_fileno(f);
#if _WIN64 // 64 bits
__int64 ret = ::_filelengthi64(fd);
if (ret >= 0)
{
return static_cast<size_t>(ret);
}
#else // windows 32 bits
long ret = ::_filelength(fd);
if (ret >= 0)
{
return static_cast<size_t>(ret);
}
#endif
#else // unix
// OpenBSD doesn't compile with :: before the fileno(..)
#if defined(__OpenBSD__)
int fd = fileno(f);
#else
int fd = ::fileno(f);
#endif
// 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
#if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64))
struct stat64 st;
if (::fstat64(fd, &st) == 0)
{
return static_cast<size_t>(st.st_size);
}
#else // other unix or linux 32 bits or cygwin
struct stat st;
if (::fstat(fd, &st) == 0)
{
return static_cast<size_t>(st.st_size);
}
#endif
#endif
throw_spdlog_ex("Failed getting file size from fd", errno);
return 0; // will not be reached.
}
// Return utc offset in minutes or throw spdlog_ex on failure
SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
{
#ifdef _WIN32
#if _WIN32_WINNT < _WIN32_WINNT_WS08
TIME_ZONE_INFORMATION tzinfo;
auto rv = ::GetTimeZoneInformation(&tzinfo);
#else
DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
auto rv = ::GetDynamicTimeZoneInformation(&tzinfo);
#endif
if (rv == TIME_ZONE_ID_INVALID)
throw_spdlog_ex("Failed getting timezone info. ", errno);
int offset = -tzinfo.Bias;
if (tm.tm_isdst)
{
offset -= tzinfo.DaylightBias;
}
else
{
offset -= tzinfo.StandardBias;
}
return offset;
#else
#if defined(sun) || defined(__sun) || defined(_AIX) || (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE))
// 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
struct helper
{
static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), const std::tm &gmtm = details::os::gmtime())
{
int local_year = localtm.tm_year + (1900 - 1);
int gmt_year = gmtm.tm_year + (1900 - 1);
long int days = (
// difference in day of year
localtm.tm_yday -
gmtm.tm_yday
// + intervening leap days
+ ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) +
((local_year / 100 >> 2) - (gmt_year / 100 >> 2))
// + difference in years * 365 */
+ (long int)(local_year - gmt_year) * 365);
long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour);
long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min);
long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec);
return secs;
}
};
auto offset_seconds = helper::calculate_gmt_offset(tm);
#else
auto offset_seconds = tm.tm_gmtoff;
#endif
return static_cast<int>(offset_seconds / 60);
#endif
}
// Return current thread id as size_t
// It exists because the std::this_thread::get_id() is much slower(especially
// under VS 2013)
SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT
{
#ifdef _WIN32
return static_cast<size_t>(::GetCurrentThreadId());
#elif defined(__linux__)
#if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
#define SYS_gettid __NR_gettid
#endif
return static_cast<size_t>(::syscall(SYS_gettid));
#elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__)
return static_cast<size_t>(::pthread_getthreadid_np());
#elif defined(__NetBSD__)
return static_cast<size_t>(::_lwp_self());
#elif defined(__OpenBSD__)
return static_cast<size_t>(::getthrid());
#elif defined(__sun)
return static_cast<size_t>(::thr_self());
#elif __APPLE__
uint64_t tid;
pthread_threadid_np(nullptr, &tid);
return static_cast<size_t>(tid);
#else // Default to standard C++11 (other Unix)
return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
#endif
}
// Return current thread id as size_t (from thread local storage)
SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT
{
#if defined(SPDLOG_NO_TLS)
return _thread_id();
#else // cache thread id in tls
static thread_local const size_t tid = _thread_id();
return tid;
#endif
}
// This is avoid msvc issue in sleep_for that happens if the clock changes.
// See https://github.com/gabime/spdlog/issues/609
SPDLOG_INLINE void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT
{
#if defined(_WIN32)
::Sleep(milliseconds);
#else
std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
#endif
}
// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
{
memory_buf_t buf;
wstr_to_utf8buf(filename, buf);
return fmt::to_string(buf);
}
#else
SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
{
return filename;
}
#endif
SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT
{
#ifdef _WIN32
return static_cast<int>(::GetCurrentProcessId());
#else
return static_cast<int>(::getpid());
#endif
}
// Determine if the terminal supports colors
// Based on: https://github.com/agauniyal/rang/
SPDLOG_INLINE bool is_color_terminal() SPDLOG_NOEXCEPT
{
#ifdef _WIN32
return true;
#else
static const bool result = []() {
const char *env_colorterm_p = std::getenv("COLORTERM");
if (env_colorterm_p != nullptr)
{
return true;
}
static constexpr std::array<const char *, 15> terms = {{"ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux",
"msys", "putty", "rxvt", "screen", "vt100", "xterm", "alacritty"}};
const char *env_term_p = std::getenv("TERM");
if (env_term_p == nullptr)
{
return false;
}
return std::any_of(terms.begin(), terms.end(), [&](const char *term) { return std::strstr(env_term_p, term) != nullptr; });
}();
return result;
#endif
}
// Determine if the terminal attached
// Source: https://github.com/agauniyal/rang/
SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT
{
#ifdef _WIN32
return ::_isatty(_fileno(file)) != 0;
#else
return ::isatty(fileno(file)) != 0;
#endif
}
#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
{
if (wstr.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) / 2 - 1)
{
throw_spdlog_ex("UTF-16 string is too big to be converted to UTF-8");
}
int wstr_size = static_cast<int>(wstr.size());
if (wstr_size == 0)
{
target.resize(0);
return;
}
int result_size = static_cast<int>(target.capacity());
if ((wstr_size + 1) * 2 > result_size)
{
result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL);
}
if (result_size > 0)
{
target.resize(result_size);
result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, target.data(), result_size, NULL, NULL);
if (result_size > 0)
{
target.resize(result_size);
return;
}
}
throw_spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
}
SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target)
{
if (str.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) - 1)
{
throw_spdlog_ex("UTF-8 string is too big to be converted to UTF-16");
}
int str_size = static_cast<int>(str.size());
if (str_size == 0)
{
target.resize(0);
return;
}
int result_size = static_cast<int>(target.capacity());
if (str_size + 1 > result_size)
{
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, NULL, 0);
}
if (result_size > 0)
{
target.resize(result_size);
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, target.data(), result_size);
if (result_size > 0)
{
target.resize(result_size);
return;
}
}
throw_spdlog_ex(fmt::format("MultiByteToWideChar failed. Last error: {}", ::GetLastError()));
}
#endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
// return true on success
static SPDLOG_INLINE bool mkdir_(const filename_t &path)
{
#ifdef _WIN32
#ifdef SPDLOG_WCHAR_FILENAMES
return ::_wmkdir(path.c_str()) == 0;
#else
return ::_mkdir(path.c_str()) == 0;
#endif
#else
return ::mkdir(path.c_str(), mode_t(0755)) == 0;
#endif
}
// create the given directory - and all directories leading to it
// return true on success or if the directory already exists
SPDLOG_INLINE bool create_dir(filename_t path)
{
if (path_exists(path))
{
return true;
}
if (path.empty())
{
return false;
}
size_t search_offset = 0;
do
{
auto token_pos = path.find_first_of(folder_seps_filename, search_offset);
// treat the entire path as a folder if no folder separator not found
if (token_pos == filename_t::npos)
{
token_pos = path.size();
}
auto subdir = path.substr(0, token_pos);
if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir))
{
return false; // return error if failed creating dir
}
search_offset = token_pos + 1;
} while (search_offset < path.size());
return true;
}
// Return directory name from given path or empty string
// "abc/file" => "abc"
// "abc/" => "abc"
// "abc" => ""
// "abc///" => "abc//"
SPDLOG_INLINE filename_t dir_name(filename_t path)
{
auto pos = path.find_last_of(folder_seps_filename);
return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
}
std::string SPDLOG_INLINE getenv(const char *field)
{
#if defined(_MSC_VER)
#if defined(__cplusplus_winrt)
return std::string{}; // not supported under uwp
#else
size_t len = 0;
char buf[128];
bool ok = ::getenv_s(&len, buf, sizeof(buf), field) == 0;
return ok ? buf : std::string{};
#endif
#else // revert to getenv
char *buf = ::getenv(field);
return buf ? buf : std::string{};
#endif
}
} // namespace os
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <ctime> // std::time_t
namespace spdlog {
namespace details {
namespace os {
SPDLOG_API spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT;
SPDLOG_API std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
SPDLOG_API std::tm localtime() SPDLOG_NOEXCEPT;
SPDLOG_API std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
SPDLOG_API std::tm gmtime() SPDLOG_NOEXCEPT;
// eol definition
#if !defined(SPDLOG_EOL)
#ifdef _WIN32
#define SPDLOG_EOL "\r\n"
#else
#define SPDLOG_EOL "\n"
#endif
#endif
SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
// folder separator
#if !defined(SPDLOG_FOLDER_SEPS)
#ifdef _WIN32
#define SPDLOG_FOLDER_SEPS "\\/"
#else
#define SPDLOG_FOLDER_SEPS "/"
#endif
#endif
SPDLOG_CONSTEXPR static const char folder_seps[] = SPDLOG_FOLDER_SEPS;
SPDLOG_CONSTEXPR static const filename_t::value_type folder_seps_filename[] = SPDLOG_FILENAME_T(SPDLOG_FOLDER_SEPS);
// fopen_s on non windows for writing
SPDLOG_API bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode);
// Remove filename. return 0 on success
SPDLOG_API int remove(const filename_t &filename) SPDLOG_NOEXCEPT;
// Remove file if exists. return 0 on success
// Note: Non atomic (might return failure to delete if concurrently deleted by other process/thread)
SPDLOG_API int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
SPDLOG_API int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT;
// Return if file exists.
SPDLOG_API bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
// Return file size according to open FILE* object
SPDLOG_API size_t filesize(FILE *f);
// Return utc offset in minutes or throw spdlog_ex on failure
SPDLOG_API int utc_minutes_offset(const std::tm &tm = details::os::localtime());
// Return current thread id as size_t
// It exists because the std::this_thread::get_id() is much slower(especially
// under VS 2013)
SPDLOG_API size_t _thread_id() SPDLOG_NOEXCEPT;
// Return current thread id as size_t (from thread local storage)
SPDLOG_API size_t thread_id() SPDLOG_NOEXCEPT;
// This is avoid msvc issue in sleep_for that happens if the clock changes.
// See https://github.com/gabime/spdlog/issues/609
SPDLOG_API void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT;
SPDLOG_API std::string filename_to_str(const filename_t &filename);
SPDLOG_API int pid() SPDLOG_NOEXCEPT;
// Determine if the terminal supports colors
// Source: https://github.com/agauniyal/rang/
SPDLOG_API bool is_color_terminal() SPDLOG_NOEXCEPT;
// Determine if the terminal attached
// Source: https://github.com/agauniyal/rang/
SPDLOG_API bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
SPDLOG_API void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
SPDLOG_API void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target);
#endif
// Return directory name from given path or empty string
// "abc/file" => "abc"
// "abc/" => "abc"
// "abc" => ""
// "abc///" => "abc//"
SPDLOG_API filename_t dir_name(filename_t path);
// Create a dir from the given path.
// Return true if succeeded or if this dir already exists.
SPDLOG_API bool create_dir(filename_t path);
// non thread safe, cross platform getenv/getenv_s
// return empty string if field not found
SPDLOG_API std::string getenv(const char *field);
} // namespace os
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "os-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/periodic_worker.h>
#endif
namespace spdlog {
namespace details {
SPDLOG_INLINE periodic_worker::periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
{
active_ = (interval > std::chrono::seconds::zero());
if (!active_)
{
return;
}
worker_thread_ = std::thread([this, callback_fun, interval]() {
for (;;)
{
std::unique_lock<std::mutex> lock(this->mutex_);
if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
{
return; // active_ == false, so exit this thread
}
callback_fun();
}
});
}
// stop the worker thread and join it
SPDLOG_INLINE periodic_worker::~periodic_worker()
{
if (worker_thread_.joinable())
{
{
std::lock_guard<std::mutex> lock(mutex_);
active_ = false;
}
cv_.notify_one();
worker_thread_.join();
}
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// periodic worker thread - periodically executes the given callback function.
//
// RAII over the owned thread:
// creates the thread on construction.
// stops and joins the thread on destruction (if the thread is executing a callback, wait for it to finish first).
#include <chrono>
#include <condition_variable>
#include <functional>
#include <mutex>
#include <thread>
namespace spdlog {
namespace details {
class SPDLOG_API periodic_worker
{
public:
periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval);
periodic_worker(const periodic_worker &) = delete;
periodic_worker &operator=(const periodic_worker &) = delete;
// stop the worker thread and join it
~periodic_worker();
private:
bool active_;
std::thread worker_thread_;
std::mutex mutex_;
std::condition_variable cv_;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "periodic_worker-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/registry.h>
#endif
#include <spdlog/common.h>
#include <spdlog/details/periodic_worker.h>
#include <spdlog/logger.h>
#include <spdlog/pattern_formatter.h>
#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
// support for the default stdout color logger
#ifdef _WIN32
#include <spdlog/sinks/wincolor_sink.h>
#else
#include <spdlog/sinks/ansicolor_sink.h>
#endif
#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
#include <chrono>
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
namespace spdlog {
namespace details {
SPDLOG_INLINE registry::registry()
: formatter_(new pattern_formatter())
{
#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
// create default logger (ansicolor_stdout_sink_mt or wincolor_stdout_sink_mt in windows).
#ifdef _WIN32
auto color_sink = std::make_shared<sinks::wincolor_stdout_sink_mt>();
#else
auto color_sink = std::make_shared<sinks::ansicolor_stdout_sink_mt>();
#endif
const char *default_logger_name = "";
default_logger_ = std::make_shared<spdlog::logger>(default_logger_name, std::move(color_sink));
loggers_[default_logger_name] = default_logger_;
#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
}
SPDLOG_INLINE registry::~registry() = default;
SPDLOG_INLINE void registry::register_logger(std::shared_ptr<logger> new_logger)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
register_logger_(std::move(new_logger));
}
SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr<logger> new_logger)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
new_logger->set_formatter(formatter_->clone());
if (err_handler_)
{
new_logger->set_error_handler(err_handler_);
}
// set new level according to previously configured level or default level
auto it = log_levels_.find(new_logger->name());
auto new_level = it != log_levels_.end() ? it->second : global_log_level_;
new_logger->set_level(new_level);
new_logger->flush_on(flush_level_);
if (backtrace_n_messages_ > 0)
{
new_logger->enable_backtrace(backtrace_n_messages_);
}
if (automatic_registration_)
{
register_logger_(std::move(new_logger));
}
}
SPDLOG_INLINE std::shared_ptr<logger> registry::get(const std::string &logger_name)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto found = loggers_.find(logger_name);
return found == loggers_.end() ? nullptr : found->second;
}
SPDLOG_INLINE std::shared_ptr<logger> registry::default_logger()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
return default_logger_;
}
// Return raw ptr to the default logger.
// To be used directly by the spdlog default api (e.g. spdlog::info)
// This make the default API faster, but cannot be used concurrently with set_default_logger().
// e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
SPDLOG_INLINE logger *registry::get_default_raw()
{
return default_logger_.get();
}
// set default logger.
// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr<logger> new_default_logger)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
// remove previous default logger from the map
if (default_logger_ != nullptr)
{
loggers_.erase(default_logger_->name());
}
if (new_default_logger != nullptr)
{
loggers_[new_default_logger->name()] = new_default_logger;
}
default_logger_ = std::move(new_default_logger);
}
SPDLOG_INLINE void registry::set_tp(std::shared_ptr<thread_pool> tp)
{
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
tp_ = std::move(tp);
}
SPDLOG_INLINE std::shared_ptr<thread_pool> registry::get_tp()
{
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
return tp_;
}
// Set global formatter. Each sink in each logger will get a clone of this object
SPDLOG_INLINE void registry::set_formatter(std::unique_ptr<formatter> formatter)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
formatter_ = std::move(formatter);
for (auto &l : loggers_)
{
l.second->set_formatter(formatter_->clone());
}
}
SPDLOG_INLINE void registry::enable_backtrace(size_t n_messages)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
backtrace_n_messages_ = n_messages;
for (auto &l : loggers_)
{
l.second->enable_backtrace(n_messages);
}
}
SPDLOG_INLINE void registry::disable_backtrace()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
backtrace_n_messages_ = 0;
for (auto &l : loggers_)
{
l.second->disable_backtrace();
}
}
SPDLOG_INLINE void registry::set_level(level::level_enum log_level)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->set_level(log_level);
}
global_log_level_ = log_level;
}
SPDLOG_INLINE void registry::flush_on(level::level_enum log_level)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->flush_on(log_level);
}
flush_level_ = log_level;
}
SPDLOG_INLINE void registry::flush_every(std::chrono::seconds interval)
{
std::lock_guard<std::mutex> lock(flusher_mutex_);
auto clbk = [this]() { this->flush_all(); };
periodic_flusher_ = details::make_unique<periodic_worker>(clbk, interval);
}
SPDLOG_INLINE void registry::set_error_handler(void (*handler)(const std::string &msg))
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->set_error_handler(handler);
}
err_handler_ = handler;
}
SPDLOG_INLINE void registry::apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
fun(l.second);
}
}
SPDLOG_INLINE void registry::flush_all()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->flush();
}
}
SPDLOG_INLINE void registry::drop(const std::string &logger_name)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
loggers_.erase(logger_name);
if (default_logger_ && default_logger_->name() == logger_name)
{
default_logger_.reset();
}
}
SPDLOG_INLINE void registry::drop_all()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
loggers_.clear();
default_logger_.reset();
}
// clean all resources and threads started by the registry
SPDLOG_INLINE void registry::shutdown()
{
{
std::lock_guard<std::mutex> lock(flusher_mutex_);
periodic_flusher_.reset();
}
drop_all();
{
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
tp_.reset();
}
}
SPDLOG_INLINE std::recursive_mutex &registry::tp_mutex()
{
return tp_mutex_;
}
SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_registration)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
automatic_registration_ = automatic_registration;
}
SPDLOG_INLINE void registry::set_levels(log_levels levels, level::level_enum *global_level)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
log_levels_ = std::move(levels);
auto global_level_requested = global_level != nullptr;
global_log_level_ = global_level_requested ? *global_level : global_log_level_;
for (auto &logger : loggers_)
{
auto logger_entry = log_levels_.find(logger.first);
if (logger_entry != log_levels_.end())
{
logger.second->set_level(logger_entry->second);
}
else if (global_level_requested)
{
logger.second->set_level(*global_level);
}
}
}
SPDLOG_INLINE registry &registry::instance()
{
static registry s_instance;
return s_instance;
}
SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name)
{
if (loggers_.find(logger_name) != loggers_.end())
{
throw_spdlog_ex("logger with name '" + logger_name + "' already exists");
}
}
SPDLOG_INLINE void registry::register_logger_(std::shared_ptr<logger> new_logger)
{
auto logger_name = new_logger->name();
throw_if_exists_(logger_name);
loggers_[logger_name] = std::move(new_logger);
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Loggers registry of unique name->logger pointer
// An attempt to create a logger with an already existing name will result with spdlog_ex exception.
// If user requests a non existing logger, nullptr will be returned
// This class is thread safe
#include <spdlog/common.h>
#include <chrono>
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
#include <mutex>
namespace spdlog {
class logger;
namespace details {
class thread_pool;
class periodic_worker;
class SPDLOG_API registry
{
public:
using log_levels = std::unordered_map<std::string, level::level_enum>;
registry(const registry &) = delete;
registry &operator=(const registry &) = delete;
void register_logger(std::shared_ptr<logger> new_logger);
void initialize_logger(std::shared_ptr<logger> new_logger);
std::shared_ptr<logger> get(const std::string &logger_name);
std::shared_ptr<logger> default_logger();
// Return raw ptr to the default logger.
// To be used directly by the spdlog default api (e.g. spdlog::info)
// This make the default API faster, but cannot be used concurrently with set_default_logger().
// e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
logger *get_default_raw();
// set default logger.
// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
void set_default_logger(std::shared_ptr<logger> new_default_logger);
void set_tp(std::shared_ptr<thread_pool> tp);
std::shared_ptr<thread_pool> get_tp();
// Set global formatter. Each sink in each logger will get a clone of this object
void set_formatter(std::unique_ptr<formatter> formatter);
void enable_backtrace(size_t n_messages);
void disable_backtrace();
void set_level(level::level_enum log_level);
void flush_on(level::level_enum log_level);
void flush_every(std::chrono::seconds interval);
void set_error_handler(void (*handler)(const std::string &msg));
void apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun);
void flush_all();
void drop(const std::string &logger_name);
void drop_all();
// clean all resources and threads started by the registry
void shutdown();
std::recursive_mutex &tp_mutex();
void set_automatic_registration(bool automatic_registration);
// set levels for all existing/future loggers. global_level can be null if should not set.
void set_levels(log_levels levels, level::level_enum *global_level);
static registry &instance();
private:
registry();
~registry();
void throw_if_exists_(const std::string &logger_name);
void register_logger_(std::shared_ptr<logger> new_logger);
bool set_level_from_cfg_(logger *logger);
std::mutex logger_map_mutex_, flusher_mutex_;
std::recursive_mutex tp_mutex_;
std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
log_levels log_levels_;
std::unique_ptr<formatter> formatter_;
spdlog::level::level_enum global_log_level_ = level::info;
level::level_enum flush_level_ = level::off;
void (*err_handler_)(const std::string &msg) = nullptr;
std::shared_ptr<thread_pool> tp_;
std::unique_ptr<periodic_worker> periodic_flusher_;
std::shared_ptr<logger> default_logger_;
bool automatic_registration_ = true;
size_t backtrace_n_messages_ = 0;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "registry-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include "registry.h"
namespace spdlog {
// Default logger factory- creates synchronous loggers
class logger;
struct synchronous_factory
{
template<typename Sink, typename... SinkArgs>
static std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&...args)
{
auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
auto new_logger = std::make_shared<spdlog::logger>(std::move(logger_name), std::move(sink));
details::registry::instance().initialize_logger(new_logger);
return new_logger;
}
};
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#define WIN32_LEAN_AND_MEAN
// tcp client helper
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <winsock2.h>
#include <windows.h>
#include <ws2tcpip.h>
#include <stdlib.h>
#include <stdio.h>
#include <string>
#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Mswsock.lib")
#pragma comment(lib, "AdvApi32.lib")
namespace spdlog {
namespace details {
class tcp_client
{
SOCKET socket_ = INVALID_SOCKET;
static bool winsock_initialized_()
{
SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == INVALID_SOCKET)
{
return false;
}
else
{
closesocket(s);
return true;
}
}
static void init_winsock_()
{
WSADATA wsaData;
auto rv = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (rv != 0)
{
throw_winsock_error_("WSAStartup failed", ::WSAGetLastError());
}
}
static void throw_winsock_error_(const std::string &msg, int last_error)
{
char buf[512];
::FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, last_error,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, (sizeof(buf) / sizeof(char)), NULL);
throw_spdlog_ex(fmt::format("tcp_sink - {}: {}", msg, buf));
}
public:
bool is_connected() const
{
return socket_ != INVALID_SOCKET;
}
void close()
{
::closesocket(socket_);
socket_ = INVALID_SOCKET;
WSACleanup();
}
SOCKET fd() const
{
return socket_;
}
~tcp_client()
{
close();
}
// try to connect or throw on failure
void connect(const std::string &host, int port)
{
// initialize winsock if needed
if (!winsock_initialized_())
{
init_winsock_();
}
if (is_connected())
{
close();
}
struct addrinfo hints
{};
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_INET; // IPv4
hints.ai_socktype = SOCK_STREAM; // TCP
hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
hints.ai_protocol = 0;
auto port_str = std::to_string(port);
struct addrinfo *addrinfo_result;
auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
int last_error = 0;
if (rv != 0)
{
last_error = ::WSAGetLastError();
WSACleanup();
throw_winsock_error_("getaddrinfo failed", last_error);
}
// Try each address until we successfully connect(2).
for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next)
{
socket_ = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (socket_ == INVALID_SOCKET)
{
last_error = ::WSAGetLastError();
WSACleanup();
continue;
}
if (::connect(socket_, rp->ai_addr, (int)rp->ai_addrlen) == 0)
{
break;
}
else
{
last_error = ::WSAGetLastError();
close();
}
}
::freeaddrinfo(addrinfo_result);
if (socket_ == INVALID_SOCKET)
{
WSACleanup();
throw_winsock_error_("connect failed", last_error);
}
// set TCP_NODELAY
int enable_flag = 1;
::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, (char *)&enable_flag, sizeof(enable_flag));
}
// Send exactly n_bytes of the given data.
// On error close the connection and throw.
void send(const char *data, size_t n_bytes)
{
size_t bytes_sent = 0;
while (bytes_sent < n_bytes)
{
const int send_flags = 0;
auto write_result = ::send(socket_, data + bytes_sent, (int)(n_bytes - bytes_sent), send_flags);
if (write_result == SOCKET_ERROR)
{
int last_error = ::WSAGetLastError();
close();
throw_winsock_error_("send failed", last_error);
}
if (write_result == 0) // (probably should not happen but in any case..)
{
break;
}
bytes_sent += static_cast<size_t>(write_result);
}
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifdef _WIN32
#error include tcp_client-windows.h instead
#endif
// tcp client helper
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
#include <netinet/tcp.h>
#include <string>
namespace spdlog {
namespace details {
class tcp_client
{
int socket_ = -1;
public:
bool is_connected() const
{
return socket_ != -1;
}
void close()
{
if (is_connected())
{
::close(socket_);
socket_ = -1;
}
}
int fd() const
{
return socket_;
}
~tcp_client()
{
close();
}
// try to connect or throw on failure
void connect(const std::string &host, int port)
{
close();
struct addrinfo hints
{};
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_INET; // IPv4
hints.ai_socktype = SOCK_STREAM; // TCP
hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
hints.ai_protocol = 0;
auto port_str = std::to_string(port);
struct addrinfo *addrinfo_result;
auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
if (rv != 0)
{
auto msg = fmt::format("::getaddrinfo failed: {}", gai_strerror(rv));
throw_spdlog_ex(msg);
}
// Try each address until we successfully connect(2).
int last_errno = 0;
for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next)
{
#if defined(SOCK_CLOEXEC)
const int flags = SOCK_CLOEXEC;
#else
const int flags = 0;
#endif
socket_ = ::socket(rp->ai_family, rp->ai_socktype | flags, rp->ai_protocol);
if (socket_ == -1)
{
last_errno = errno;
continue;
}
rv = ::connect(socket_, rp->ai_addr, rp->ai_addrlen);
if (rv == 0)
{
break;
}
last_errno = errno;
::close(socket_);
socket_ = -1;
}
::freeaddrinfo(addrinfo_result);
if (socket_ == -1)
{
throw_spdlog_ex("::connect failed", last_errno);
}
// set TCP_NODELAY
int enable_flag = 1;
::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, (char *)&enable_flag, sizeof(enable_flag));
// prevent sigpipe on systems where MSG_NOSIGNAL is not available
#if defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
::setsockopt(socket_, SOL_SOCKET, SO_NOSIGPIPE, (char *)&enable_flag, sizeof(enable_flag));
#endif
#if !defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
#error "tcp_sink would raise SIGPIPE since niether SO_NOSIGPIPE nor MSG_NOSIGNAL are available"
#endif
}
// Send exactly n_bytes of the given data.
// On error close the connection and throw.
void send(const char *data, size_t n_bytes)
{
size_t bytes_sent = 0;
while (bytes_sent < n_bytes)
{
#if defined(MSG_NOSIGNAL)
const int send_flags = MSG_NOSIGNAL;
#else
const int send_flags = 0;
#endif
auto write_result = ::send(socket_, data + bytes_sent, n_bytes - bytes_sent, send_flags);
if (write_result < 0)
{
close();
throw_spdlog_ex("write(2) failed", errno);
}
if (write_result == 0) // (probably should not happen but in any case..)
{
break;
}
bytes_sent += static_cast<size_t>(write_result);
}
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/thread_pool.h>
#endif
#include <spdlog/common.h>
#include <cassert>
namespace spdlog {
namespace details {
SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n, std::function<void()> on_thread_start)
: q_(q_max_items)
{
if (threads_n == 0 || threads_n > 1000)
{
throw_spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid "
"range is 1-1000)");
}
for (size_t i = 0; i < threads_n; i++)
{
threads_.emplace_back([this, on_thread_start] {
on_thread_start();
this->thread_pool::worker_loop_();
});
}
}
SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n)
: thread_pool(q_max_items, threads_n, [] {})
{}
// message all threads to terminate gracefully join them
SPDLOG_INLINE thread_pool::~thread_pool()
{
SPDLOG_TRY
{
for (size_t i = 0; i < threads_.size(); i++)
{
post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
}
for (auto &t : threads_)
{
t.join();
}
}
SPDLOG_CATCH_ALL() {}
}
void SPDLOG_INLINE thread_pool::post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy)
{
async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg);
post_async_msg_(std::move(async_m), overflow_policy);
}
void SPDLOG_INLINE thread_pool::post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy)
{
post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy);
}
size_t SPDLOG_INLINE thread_pool::overrun_counter()
{
return q_.overrun_counter();
}
size_t SPDLOG_INLINE thread_pool::queue_size()
{
return q_.size();
}
void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy)
{
if (overflow_policy == async_overflow_policy::block)
{
q_.enqueue(std::move(new_msg));
}
else
{
q_.enqueue_nowait(std::move(new_msg));
}
}
void SPDLOG_INLINE thread_pool::worker_loop_()
{
while (process_next_msg_()) {}
}
// process next message in the queue
// return true if this thread should still be active (while no terminate msg
// was received)
bool SPDLOG_INLINE thread_pool::process_next_msg_()
{
async_msg incoming_async_msg;
bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10));
if (!dequeued)
{
return true;
}
switch (incoming_async_msg.msg_type)
{
case async_msg_type::log: {
incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg);
return true;
}
case async_msg_type::flush: {
incoming_async_msg.worker_ptr->backend_flush_();
return true;
}
case async_msg_type::terminate: {
return false;
}
default: {
assert(false);
}
}
return true;
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/log_msg_buffer.h>
#include <spdlog/details/mpmc_blocking_q.h>
#include <spdlog/details/os.h>
#include <chrono>
#include <memory>
#include <thread>
#include <vector>
#include <functional>
namespace spdlog {
class async_logger;
namespace details {
using async_logger_ptr = std::shared_ptr<spdlog::async_logger>;
enum class async_msg_type
{
log,
flush,
terminate
};
#include <spdlog/details/log_msg_buffer.h>
// Async msg to move to/from the queue
// Movable only. should never be copied
struct async_msg : log_msg_buffer
{
async_msg_type msg_type{async_msg_type::log};
async_logger_ptr worker_ptr;
async_msg() = default;
~async_msg() = default;
// should only be moved in or out of the queue..
async_msg(const async_msg &) = delete;
// support for vs2013 move
#if defined(_MSC_VER) && _MSC_VER <= 1800
async_msg(async_msg &&other)
: log_msg_buffer(std::move(other))
, msg_type(other.msg_type)
, worker_ptr(std::move(other.worker_ptr))
{}
async_msg &operator=(async_msg &&other)
{
*static_cast<log_msg_buffer *>(this) = std::move(other);
msg_type = other.msg_type;
worker_ptr = std::move(other.worker_ptr);
return *this;
}
#else // (_MSC_VER) && _MSC_VER <= 1800
async_msg(async_msg &&) = default;
async_msg &operator=(async_msg &&) = default;
#endif
// construct from log_msg with given type
async_msg(async_logger_ptr &&worker, async_msg_type the_type, const details::log_msg &m)
: log_msg_buffer{m}
, msg_type{the_type}
, worker_ptr{std::move(worker)}
{}
async_msg(async_logger_ptr &&worker, async_msg_type the_type)
: log_msg_buffer{}
, msg_type{the_type}
, worker_ptr{std::move(worker)}
{}
explicit async_msg(async_msg_type the_type)
: async_msg{nullptr, the_type}
{}
};
class SPDLOG_API thread_pool
{
public:
using item_type = async_msg;
using q_type = details::mpmc_blocking_queue<item_type>;
thread_pool(size_t q_max_items, size_t threads_n, std::function<void()> on_thread_start);
thread_pool(size_t q_max_items, size_t threads_n);
// message all threads to terminate gracefully join them
~thread_pool();
thread_pool(const thread_pool &) = delete;
thread_pool &operator=(thread_pool &&) = delete;
void post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy);
void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy);
size_t overrun_counter();
size_t queue_size();
private:
q_type q_;
std::vector<std::thread> threads_;
void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy);
void worker_loop_();
// process next message in the queue
// return true if this thread should still be active (while no terminate msg
// was received)
bool process_next_msg_();
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "thread_pool-inl.h"
#endif

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#pragma once
#ifndef NOMINMAX
#define NOMINMAX // prevent windows redefining min/max
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include <cctype>
//
// Support for logging binary data as hex
// format flags, any combination of the followng:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output to lines.
// {:a} - show ASCII if :n is not set
//
// Examples:
//
// std::vector<char> v(200, 0x0b);
// logger->info("Some buffer {}", spdlog::to_hex(v));
// char buf[128];
// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf)));
// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf), 16));
namespace spdlog {
namespace details {
template<typename It>
class dump_info
{
public:
dump_info(It range_begin, It range_end, size_t size_per_line)
: begin_(range_begin)
, end_(range_end)
, size_per_line_(size_per_line)
{}
It begin() const
{
return begin_;
}
It end() const
{
return end_;
}
size_t size_per_line() const
{
return size_per_line_;
}
private:
It begin_, end_;
size_t size_per_line_;
};
} // namespace details
// create a dump_info that wraps the given container
template<typename Container>
inline details::dump_info<typename Container::const_iterator> to_hex(const Container &container, size_t size_per_line = 32)
{
static_assert(sizeof(typename Container::value_type) == 1, "sizeof(Container::value_type) != 1");
using Iter = typename Container::const_iterator;
return details::dump_info<Iter>(std::begin(container), std::end(container), size_per_line);
}
// create dump_info from ranges
template<typename It>
inline details::dump_info<It> to_hex(const It range_begin, const It range_end, size_t size_per_line = 32)
{
return details::dump_info<It>(range_begin, range_end, size_per_line);
}
} // namespace spdlog
namespace fmt {
template<typename T>
struct formatter<spdlog::details::dump_info<T>>
{
const char delimiter = ' ';
bool put_newlines = true;
bool put_delimiters = true;
bool use_uppercase = false;
bool put_positions = true; // position on start of each line
bool show_ascii = false;
// parse the format string flags
template<typename ParseContext>
auto parse(ParseContext &ctx) -> decltype(ctx.begin())
{
auto it = ctx.begin();
while (it != ctx.end() && *it != '}')
{
switch (*it)
{
case 'X':
use_uppercase = true;
break;
case 's':
put_delimiters = false;
break;
case 'p':
put_positions = false;
break;
case 'n':
put_newlines = false;
show_ascii = false;
break;
case 'a':
if (put_newlines)
{
show_ascii = true;
}
break;
}
++it;
}
return it;
}
// format the given bytes range as hex
template<typename FormatContext, typename Container>
auto format(const spdlog::details::dump_info<Container> &the_range, FormatContext &ctx) -> decltype(ctx.out())
{
SPDLOG_CONSTEXPR const char *hex_upper = "0123456789ABCDEF";
SPDLOG_CONSTEXPR const char *hex_lower = "0123456789abcdef";
const char *hex_chars = use_uppercase ? hex_upper : hex_lower;
#if FMT_VERSION < 60000
auto inserter = ctx.begin();
#else
auto inserter = ctx.out();
#endif
int size_per_line = static_cast<int>(the_range.size_per_line());
auto start_of_line = the_range.begin();
for (auto i = the_range.begin(); i != the_range.end(); i++)
{
auto ch = static_cast<unsigned char>(*i);
if (put_newlines && (i == the_range.begin() || i - start_of_line >= size_per_line))
{
if (show_ascii && i != the_range.begin())
{
*inserter++ = delimiter;
*inserter++ = delimiter;
for (auto j = start_of_line; j < i; j++)
{
auto pc = static_cast<unsigned char>(*j);
*inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
}
}
put_newline(inserter, static_cast<size_t>(i - the_range.begin()));
// put first byte without delimiter in front of it
*inserter++ = hex_chars[(ch >> 4) & 0x0f];
*inserter++ = hex_chars[ch & 0x0f];
start_of_line = i;
continue;
}
if (put_delimiters)
{
*inserter++ = delimiter;
}
*inserter++ = hex_chars[(ch >> 4) & 0x0f];
*inserter++ = hex_chars[ch & 0x0f];
}
if (show_ascii) // add ascii to last line
{
if (the_range.end() - the_range.begin() > size_per_line)
{
auto blank_num = size_per_line - (the_range.end() - start_of_line);
while (blank_num-- > 0)
{
*inserter++ = delimiter;
*inserter++ = delimiter;
if (put_delimiters)
{
*inserter++ = delimiter;
}
}
}
*inserter++ = delimiter;
*inserter++ = delimiter;
for (auto j = start_of_line; j != the_range.end(); j++)
{
auto pc = static_cast<unsigned char>(*j);
*inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
}
}
return inserter;
}
// put newline(and position header)
template<typename It>
void put_newline(It inserter, std::size_t pos)
{
#ifdef _WIN32
*inserter++ = '\r';
#endif
*inserter++ = '\n';
if (put_positions)
{
fmt::format_to(inserter, "{:<04X}: ", pos);
}
}
};
} // namespace fmt

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Copyright (c) 2012 - present, Victor Zverovich
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- Optional exception to the license ---
As an exception, if, as a result of your compiling your source code, portions
of this Software are embedded into a machine-executable object form of such
source code, you may redistribute such embedded portions in such object form
without including the above copyright and permission notices.

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// Formatting library for C++ - color support
//
// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_COLOR_H_
#define FMT_COLOR_H_
#include "format.h"
FMT_BEGIN_NAMESPACE
enum class color : uint32_t {
alice_blue = 0xF0F8FF, // rgb(240,248,255)
antique_white = 0xFAEBD7, // rgb(250,235,215)
aqua = 0x00FFFF, // rgb(0,255,255)
aquamarine = 0x7FFFD4, // rgb(127,255,212)
azure = 0xF0FFFF, // rgb(240,255,255)
beige = 0xF5F5DC, // rgb(245,245,220)
bisque = 0xFFE4C4, // rgb(255,228,196)
black = 0x000000, // rgb(0,0,0)
blanched_almond = 0xFFEBCD, // rgb(255,235,205)
blue = 0x0000FF, // rgb(0,0,255)
blue_violet = 0x8A2BE2, // rgb(138,43,226)
brown = 0xA52A2A, // rgb(165,42,42)
burly_wood = 0xDEB887, // rgb(222,184,135)
cadet_blue = 0x5F9EA0, // rgb(95,158,160)
chartreuse = 0x7FFF00, // rgb(127,255,0)
chocolate = 0xD2691E, // rgb(210,105,30)
coral = 0xFF7F50, // rgb(255,127,80)
cornflower_blue = 0x6495ED, // rgb(100,149,237)
cornsilk = 0xFFF8DC, // rgb(255,248,220)
crimson = 0xDC143C, // rgb(220,20,60)
cyan = 0x00FFFF, // rgb(0,255,255)
dark_blue = 0x00008B, // rgb(0,0,139)
dark_cyan = 0x008B8B, // rgb(0,139,139)
dark_golden_rod = 0xB8860B, // rgb(184,134,11)
dark_gray = 0xA9A9A9, // rgb(169,169,169)
dark_green = 0x006400, // rgb(0,100,0)
dark_khaki = 0xBDB76B, // rgb(189,183,107)
dark_magenta = 0x8B008B, // rgb(139,0,139)
dark_olive_green = 0x556B2F, // rgb(85,107,47)
dark_orange = 0xFF8C00, // rgb(255,140,0)
dark_orchid = 0x9932CC, // rgb(153,50,204)
dark_red = 0x8B0000, // rgb(139,0,0)
dark_salmon = 0xE9967A, // rgb(233,150,122)
dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
dark_slate_blue = 0x483D8B, // rgb(72,61,139)
dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
dark_turquoise = 0x00CED1, // rgb(0,206,209)
dark_violet = 0x9400D3, // rgb(148,0,211)
deep_pink = 0xFF1493, // rgb(255,20,147)
deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
dim_gray = 0x696969, // rgb(105,105,105)
dodger_blue = 0x1E90FF, // rgb(30,144,255)
fire_brick = 0xB22222, // rgb(178,34,34)
floral_white = 0xFFFAF0, // rgb(255,250,240)
forest_green = 0x228B22, // rgb(34,139,34)
fuchsia = 0xFF00FF, // rgb(255,0,255)
gainsboro = 0xDCDCDC, // rgb(220,220,220)
ghost_white = 0xF8F8FF, // rgb(248,248,255)
gold = 0xFFD700, // rgb(255,215,0)
golden_rod = 0xDAA520, // rgb(218,165,32)
gray = 0x808080, // rgb(128,128,128)
green = 0x008000, // rgb(0,128,0)
green_yellow = 0xADFF2F, // rgb(173,255,47)
honey_dew = 0xF0FFF0, // rgb(240,255,240)
hot_pink = 0xFF69B4, // rgb(255,105,180)
indian_red = 0xCD5C5C, // rgb(205,92,92)
indigo = 0x4B0082, // rgb(75,0,130)
ivory = 0xFFFFF0, // rgb(255,255,240)
khaki = 0xF0E68C, // rgb(240,230,140)
lavender = 0xE6E6FA, // rgb(230,230,250)
lavender_blush = 0xFFF0F5, // rgb(255,240,245)
lawn_green = 0x7CFC00, // rgb(124,252,0)
lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
light_blue = 0xADD8E6, // rgb(173,216,230)
light_coral = 0xF08080, // rgb(240,128,128)
light_cyan = 0xE0FFFF, // rgb(224,255,255)
light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
light_gray = 0xD3D3D3, // rgb(211,211,211)
light_green = 0x90EE90, // rgb(144,238,144)
light_pink = 0xFFB6C1, // rgb(255,182,193)
light_salmon = 0xFFA07A, // rgb(255,160,122)
light_sea_green = 0x20B2AA, // rgb(32,178,170)
light_sky_blue = 0x87CEFA, // rgb(135,206,250)
light_slate_gray = 0x778899, // rgb(119,136,153)
light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
light_yellow = 0xFFFFE0, // rgb(255,255,224)
lime = 0x00FF00, // rgb(0,255,0)
lime_green = 0x32CD32, // rgb(50,205,50)
linen = 0xFAF0E6, // rgb(250,240,230)
magenta = 0xFF00FF, // rgb(255,0,255)
maroon = 0x800000, // rgb(128,0,0)
medium_aquamarine = 0x66CDAA, // rgb(102,205,170)
medium_blue = 0x0000CD, // rgb(0,0,205)
medium_orchid = 0xBA55D3, // rgb(186,85,211)
medium_purple = 0x9370DB, // rgb(147,112,219)
medium_sea_green = 0x3CB371, // rgb(60,179,113)
medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
medium_spring_green = 0x00FA9A, // rgb(0,250,154)
medium_turquoise = 0x48D1CC, // rgb(72,209,204)
medium_violet_red = 0xC71585, // rgb(199,21,133)
midnight_blue = 0x191970, // rgb(25,25,112)
mint_cream = 0xF5FFFA, // rgb(245,255,250)
misty_rose = 0xFFE4E1, // rgb(255,228,225)
moccasin = 0xFFE4B5, // rgb(255,228,181)
navajo_white = 0xFFDEAD, // rgb(255,222,173)
navy = 0x000080, // rgb(0,0,128)
old_lace = 0xFDF5E6, // rgb(253,245,230)
olive = 0x808000, // rgb(128,128,0)
olive_drab = 0x6B8E23, // rgb(107,142,35)
orange = 0xFFA500, // rgb(255,165,0)
orange_red = 0xFF4500, // rgb(255,69,0)
orchid = 0xDA70D6, // rgb(218,112,214)
pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
pale_green = 0x98FB98, // rgb(152,251,152)
pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
pale_violet_red = 0xDB7093, // rgb(219,112,147)
papaya_whip = 0xFFEFD5, // rgb(255,239,213)
peach_puff = 0xFFDAB9, // rgb(255,218,185)
peru = 0xCD853F, // rgb(205,133,63)
pink = 0xFFC0CB, // rgb(255,192,203)
plum = 0xDDA0DD, // rgb(221,160,221)
powder_blue = 0xB0E0E6, // rgb(176,224,230)
purple = 0x800080, // rgb(128,0,128)
rebecca_purple = 0x663399, // rgb(102,51,153)
red = 0xFF0000, // rgb(255,0,0)
rosy_brown = 0xBC8F8F, // rgb(188,143,143)
royal_blue = 0x4169E1, // rgb(65,105,225)
saddle_brown = 0x8B4513, // rgb(139,69,19)
salmon = 0xFA8072, // rgb(250,128,114)
sandy_brown = 0xF4A460, // rgb(244,164,96)
sea_green = 0x2E8B57, // rgb(46,139,87)
sea_shell = 0xFFF5EE, // rgb(255,245,238)
sienna = 0xA0522D, // rgb(160,82,45)
silver = 0xC0C0C0, // rgb(192,192,192)
sky_blue = 0x87CEEB, // rgb(135,206,235)
slate_blue = 0x6A5ACD, // rgb(106,90,205)
slate_gray = 0x708090, // rgb(112,128,144)
snow = 0xFFFAFA, // rgb(255,250,250)
spring_green = 0x00FF7F, // rgb(0,255,127)
steel_blue = 0x4682B4, // rgb(70,130,180)
tan = 0xD2B48C, // rgb(210,180,140)
teal = 0x008080, // rgb(0,128,128)
thistle = 0xD8BFD8, // rgb(216,191,216)
tomato = 0xFF6347, // rgb(255,99,71)
turquoise = 0x40E0D0, // rgb(64,224,208)
violet = 0xEE82EE, // rgb(238,130,238)
wheat = 0xF5DEB3, // rgb(245,222,179)
white = 0xFFFFFF, // rgb(255,255,255)
white_smoke = 0xF5F5F5, // rgb(245,245,245)
yellow = 0xFFFF00, // rgb(255,255,0)
yellow_green = 0x9ACD32 // rgb(154,205,50)
}; // enum class color
enum class terminal_color : uint8_t {
black = 30,
red,
green,
yellow,
blue,
magenta,
cyan,
white,
bright_black = 90,
bright_red,
bright_green,
bright_yellow,
bright_blue,
bright_magenta,
bright_cyan,
bright_white
};
enum class emphasis : uint8_t {
bold = 1,
italic = 1 << 1,
underline = 1 << 2,
strikethrough = 1 << 3
};
// rgb is a struct for red, green and blue colors.
// Using the name "rgb" makes some editors show the color in a tooltip.
struct rgb {
FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
FMT_CONSTEXPR rgb(uint32_t hex)
: r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
FMT_CONSTEXPR rgb(color hex)
: r((uint32_t(hex) >> 16) & 0xFF),
g((uint32_t(hex) >> 8) & 0xFF),
b(uint32_t(hex) & 0xFF) {}
uint8_t r;
uint8_t g;
uint8_t b;
};
namespace detail {
// color is a struct of either a rgb color or a terminal color.
struct color_type {
FMT_CONSTEXPR color_type() FMT_NOEXCEPT : is_rgb(), value{} {}
FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT : is_rgb(true),
value{} {
value.rgb_color = static_cast<uint32_t>(rgb_color);
}
FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT : is_rgb(true), value{} {
value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) |
(static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
}
FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT : is_rgb(),
value{} {
value.term_color = static_cast<uint8_t>(term_color);
}
bool is_rgb;
union color_union {
uint8_t term_color;
uint32_t rgb_color;
} value;
};
} // namespace detail
// Experimental text formatting support.
class text_style {
public:
FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT
: set_foreground_color(),
set_background_color(),
ems(em) {}
FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) {
if (!set_foreground_color) {
set_foreground_color = rhs.set_foreground_color;
foreground_color = rhs.foreground_color;
} else if (rhs.set_foreground_color) {
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
}
if (!set_background_color) {
set_background_color = rhs.set_background_color;
background_color = rhs.background_color;
} else if (rhs.set_background_color) {
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
}
ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
static_cast<uint8_t>(rhs.ems));
return *this;
}
friend FMT_CONSTEXPR text_style operator|(text_style lhs,
const text_style& rhs) {
return lhs |= rhs;
}
FMT_CONSTEXPR text_style& operator&=(const text_style& rhs) {
if (!set_foreground_color) {
set_foreground_color = rhs.set_foreground_color;
foreground_color = rhs.foreground_color;
} else if (rhs.set_foreground_color) {
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
FMT_THROW(format_error("can't AND a terminal color"));
foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color;
}
if (!set_background_color) {
set_background_color = rhs.set_background_color;
background_color = rhs.background_color;
} else if (rhs.set_background_color) {
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
FMT_THROW(format_error("can't AND a terminal color"));
background_color.value.rgb_color &= rhs.background_color.value.rgb_color;
}
ems = static_cast<emphasis>(static_cast<uint8_t>(ems) &
static_cast<uint8_t>(rhs.ems));
return *this;
}
friend FMT_CONSTEXPR text_style operator&(text_style lhs,
const text_style& rhs) {
return lhs &= rhs;
}
FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT {
return set_foreground_color;
}
FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT {
return set_background_color;
}
FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
return static_cast<uint8_t>(ems) != 0;
}
FMT_CONSTEXPR detail::color_type get_foreground() const FMT_NOEXCEPT {
FMT_ASSERT(has_foreground(), "no foreground specified for this style");
return foreground_color;
}
FMT_CONSTEXPR detail::color_type get_background() const FMT_NOEXCEPT {
FMT_ASSERT(has_background(), "no background specified for this style");
return background_color;
}
FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT {
FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
return ems;
}
private:
FMT_CONSTEXPR text_style(bool is_foreground,
detail::color_type text_color) FMT_NOEXCEPT
: set_foreground_color(),
set_background_color(),
ems() {
if (is_foreground) {
foreground_color = text_color;
set_foreground_color = true;
} else {
background_color = text_color;
set_background_color = true;
}
}
friend FMT_CONSTEXPR_DECL text_style fg(detail::color_type foreground)
FMT_NOEXCEPT;
friend FMT_CONSTEXPR_DECL text_style bg(detail::color_type background)
FMT_NOEXCEPT;
detail::color_type foreground_color;
detail::color_type background_color;
bool set_foreground_color;
bool set_background_color;
emphasis ems;
};
FMT_CONSTEXPR text_style fg(detail::color_type foreground) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/true, foreground);
}
FMT_CONSTEXPR text_style bg(detail::color_type background) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/false, background);
}
FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT {
return text_style(lhs) | rhs;
}
namespace detail {
template <typename Char> struct ansi_color_escape {
FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
const char* esc) FMT_NOEXCEPT {
// If we have a terminal color, we need to output another escape code
// sequence.
if (!text_color.is_rgb) {
bool is_background = esc == detail::data::background_color;
uint32_t value = text_color.value.term_color;
// Background ASCII codes are the same as the foreground ones but with
// 10 more.
if (is_background) value += 10u;
size_t index = 0;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
if (value >= 100u) {
buffer[index++] = static_cast<Char>('1');
value %= 100u;
}
buffer[index++] = static_cast<Char>('0' + value / 10u);
buffer[index++] = static_cast<Char>('0' + value % 10u);
buffer[index++] = static_cast<Char>('m');
buffer[index++] = static_cast<Char>('\0');
return;
}
for (int i = 0; i < 7; i++) {
buffer[i] = static_cast<Char>(esc[i]);
}
rgb color(text_color.value.rgb_color);
to_esc(color.r, buffer + 7, ';');
to_esc(color.g, buffer + 11, ';');
to_esc(color.b, buffer + 15, 'm');
buffer[19] = static_cast<Char>(0);
}
FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT {
uint8_t em_codes[4] = {};
uint8_t em_bits = static_cast<uint8_t>(em);
if (em_bits & static_cast<uint8_t>(emphasis::bold)) em_codes[0] = 1;
if (em_bits & static_cast<uint8_t>(emphasis::italic)) em_codes[1] = 3;
if (em_bits & static_cast<uint8_t>(emphasis::underline)) em_codes[2] = 4;
if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
em_codes[3] = 9;
size_t index = 0;
for (int i = 0; i < 4; ++i) {
if (!em_codes[i]) continue;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
buffer[index++] = static_cast<Char>('0' + em_codes[i]);
buffer[index++] = static_cast<Char>('m');
}
buffer[index++] = static_cast<Char>(0);
}
FMT_CONSTEXPR operator const Char*() const FMT_NOEXCEPT { return buffer; }
FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; }
FMT_CONSTEXPR const Char* end() const FMT_NOEXCEPT {
return buffer + std::char_traits<Char>::length(buffer);
}
private:
Char buffer[7u + 3u * 4u + 1u];
static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out,
char delimiter) FMT_NOEXCEPT {
out[0] = static_cast<Char>('0' + c / 100);
out[1] = static_cast<Char>('0' + c / 10 % 10);
out[2] = static_cast<Char>('0' + c % 10);
out[3] = static_cast<Char>(delimiter);
}
};
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
detail::color_type foreground) FMT_NOEXCEPT {
return ansi_color_escape<Char>(foreground, detail::data::foreground_color);
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
detail::color_type background) FMT_NOEXCEPT {
return ansi_color_escape<Char>(background, detail::data::background_color);
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) FMT_NOEXCEPT {
return ansi_color_escape<Char>(em);
}
template <typename Char>
inline void fputs(const Char* chars, FILE* stream) FMT_NOEXCEPT {
std::fputs(chars, stream);
}
template <>
inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT {
std::fputws(chars, stream);
}
template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT {
fputs(detail::data::reset_color, stream);
}
template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT {
fputs(detail::data::wreset_color, stream);
}
template <typename Char>
inline void reset_color(buffer<Char>& buffer) FMT_NOEXCEPT {
const char* begin = data::reset_color;
const char* end = begin + sizeof(data::reset_color) - 1;
buffer.append(begin, end);
}
template <typename Char>
void vformat_to(buffer<Char>& buf, const text_style& ts,
basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
buf.append(emphasis.begin(), emphasis.end());
}
if (ts.has_foreground()) {
has_style = true;
auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
buf.append(foreground.begin(), foreground.end());
}
if (ts.has_background()) {
has_style = true;
auto background = detail::make_background_color<Char>(ts.get_background());
buf.append(background.begin(), background.end());
}
detail::vformat_to(buf, format_str, args);
if (has_style) detail::reset_color<Char>(buf);
}
} // namespace detail
template <typename S, typename Char = char_t<S>>
void vprint(std::FILE* f, const text_style& ts, const S& format,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
detail::vformat_to(buf, ts, to_string_view(format), args);
buf.push_back(Char(0));
detail::fputs(buf.data(), f);
}
/**
\rst
Formats a string and prints it to the specified file stream using ANSI
escape sequences to specify text formatting.
**Example**::
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
vprint(f, ts, format_str,
fmt::make_args_checked<Args...>(format_str, args...));
}
/**
Formats a string and prints it to stdout using ANSI escape sequences to
specify text formatting.
Example:
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
}
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const text_style& ts, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
detail::vformat_to(buf, ts, to_string_view(format_str), args);
return fmt::to_string(buf);
}
/**
\rst
Formats arguments and returns the result as a string using ANSI
escape sequences to specify text formatting.
**Example**::
#include <fmt/color.h>
std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
"The answer is {}", 42);
\endrst
*/
template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
const Args&... args) {
return vformat(ts, to_string_view(format_str),
fmt::make_args_checked<Args...>(format_str, args...));
}
/**
Formats a string with the given text_style and writes the output to ``out``.
*/
template <typename OutputIt, typename Char,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
OutputIt vformat_to(
OutputIt out, const text_style& ts, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out));
detail::vformat_to(buf, ts, format_str, args);
return detail::get_iterator(buf);
}
/**
\rst
Formats arguments with the given text_style, writes the result to the output
iterator ``out`` and returns the iterator past the end of the output range.
**Example**::
std::vector<char> out;
fmt::format_to(std::back_inserter(out),
fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
\endrst
*/
template <typename OutputIt, typename S, typename... Args,
bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&&
detail::is_string<S>::value>
inline auto format_to(OutputIt out, const text_style& ts, const S& format_str,
Args&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, ts, to_string_view(format_str),
fmt::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE
#endif // FMT_COLOR_H_

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@ -0,0 +1,701 @@
// Formatting library for C++ - experimental format string compilation
//
// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_COMPILE_H_
#define FMT_COMPILE_H_
#include <vector>
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
// A compile-time string which is compiled into fast formatting code.
class compiled_string {};
template <typename S>
struct is_compiled_string : std::is_base_of<compiled_string, S> {};
/**
\rst
Converts a string literal *s* into a format string that will be parsed at
compile time and converted into efficient formatting code. Requires C++17
``constexpr if`` compiler support.
**Example**::
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
\endrst
*/
#define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string)
template <typename T, typename... Tail>
const T& first(const T& value, const Tail&...) {
return value;
}
// Part of a compiled format string. It can be either literal text or a
// replacement field.
template <typename Char> struct format_part {
enum class kind { arg_index, arg_name, text, replacement };
struct replacement {
arg_ref<Char> arg_id;
dynamic_format_specs<Char> specs;
};
kind part_kind;
union value {
int arg_index;
basic_string_view<Char> str;
replacement repl;
FMT_CONSTEXPR value(int index = 0) : arg_index(index) {}
FMT_CONSTEXPR value(basic_string_view<Char> s) : str(s) {}
FMT_CONSTEXPR value(replacement r) : repl(r) {}
} val;
// Position past the end of the argument id.
const Char* arg_id_end = nullptr;
FMT_CONSTEXPR format_part(kind k = kind::arg_index, value v = {})
: part_kind(k), val(v) {}
static FMT_CONSTEXPR format_part make_arg_index(int index) {
return format_part(kind::arg_index, index);
}
static FMT_CONSTEXPR format_part make_arg_name(basic_string_view<Char> name) {
return format_part(kind::arg_name, name);
}
static FMT_CONSTEXPR format_part make_text(basic_string_view<Char> text) {
return format_part(kind::text, text);
}
static FMT_CONSTEXPR format_part make_replacement(replacement repl) {
return format_part(kind::replacement, repl);
}
};
template <typename Char> struct part_counter {
unsigned num_parts = 0;
FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
if (begin != end) ++num_parts;
}
FMT_CONSTEXPR int on_arg_id() { return ++num_parts, 0; }
FMT_CONSTEXPR int on_arg_id(int) { return ++num_parts, 0; }
FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) {
return ++num_parts, 0;
}
FMT_CONSTEXPR void on_replacement_field(int, const Char*) {}
FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
// Find the matching brace.
unsigned brace_counter = 0;
for (; begin != end; ++begin) {
if (*begin == '{') {
++brace_counter;
} else if (*begin == '}') {
if (brace_counter == 0u) break;
--brace_counter;
}
}
return begin;
}
FMT_CONSTEXPR void on_error(const char*) {}
};
// Counts the number of parts in a format string.
template <typename Char>
FMT_CONSTEXPR unsigned count_parts(basic_string_view<Char> format_str) {
part_counter<Char> counter;
parse_format_string<true>(format_str, counter);
return counter.num_parts;
}
template <typename Char, typename PartHandler>
class format_string_compiler : public error_handler {
private:
using part = format_part<Char>;
PartHandler handler_;
part part_;
basic_string_view<Char> format_str_;
basic_format_parse_context<Char> parse_context_;
public:
FMT_CONSTEXPR format_string_compiler(basic_string_view<Char> format_str,
PartHandler handler)
: handler_(handler),
format_str_(format_str),
parse_context_(format_str) {}
FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
if (begin != end)
handler_(part::make_text({begin, to_unsigned(end - begin)}));
}
FMT_CONSTEXPR int on_arg_id() {
part_ = part::make_arg_index(parse_context_.next_arg_id());
return 0;
}
FMT_CONSTEXPR int on_arg_id(int id) {
parse_context_.check_arg_id(id);
part_ = part::make_arg_index(id);
return 0;
}
FMT_CONSTEXPR int on_arg_id(basic_string_view<Char> id) {
part_ = part::make_arg_name(id);
return 0;
}
FMT_CONSTEXPR void on_replacement_field(int, const Char* ptr) {
part_.arg_id_end = ptr;
handler_(part_);
}
FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
auto repl = typename part::replacement();
dynamic_specs_handler<basic_format_parse_context<Char>> handler(
repl.specs, parse_context_);
auto it = parse_format_specs(begin, end, handler);
if (*it != '}') on_error("missing '}' in format string");
repl.arg_id = part_.part_kind == part::kind::arg_index
? arg_ref<Char>(part_.val.arg_index)
: arg_ref<Char>(part_.val.str);
auto part = part::make_replacement(repl);
part.arg_id_end = begin;
handler_(part);
return it;
}
};
// Compiles a format string and invokes handler(part) for each parsed part.
template <bool IS_CONSTEXPR, typename Char, typename PartHandler>
FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
PartHandler handler) {
parse_format_string<IS_CONSTEXPR>(
format_str,
format_string_compiler<Char, PartHandler>(format_str, handler));
}
template <typename OutputIt, typename Context, typename Id>
void format_arg(
basic_format_parse_context<typename Context::char_type>& parse_ctx,
Context& ctx, Id arg_id) {
ctx.advance_to(visit_format_arg(
arg_formatter<OutputIt, typename Context::char_type>(ctx, &parse_ctx),
ctx.arg(arg_id)));
}
// vformat_to is defined in a subnamespace to prevent ADL.
namespace cf {
template <typename Context, typename OutputIt, typename CompiledFormat>
auto vformat_to(OutputIt out, CompiledFormat& cf,
basic_format_args<Context> args) -> typename Context::iterator {
using char_type = typename Context::char_type;
basic_format_parse_context<char_type> parse_ctx(
to_string_view(cf.format_str_));
Context ctx(out, args);
const auto& parts = cf.parts();
for (auto part_it = std::begin(parts); part_it != std::end(parts);
++part_it) {
const auto& part = *part_it;
const auto& value = part.val;
using format_part_t = format_part<char_type>;
switch (part.part_kind) {
case format_part_t::kind::text: {
const auto text = value.str;
auto output = ctx.out();
auto&& it = reserve(output, text.size());
it = std::copy_n(text.begin(), text.size(), it);
ctx.advance_to(output);
break;
}
case format_part_t::kind::arg_index:
advance_to(parse_ctx, part.arg_id_end);
detail::format_arg<OutputIt>(parse_ctx, ctx, value.arg_index);
break;
case format_part_t::kind::arg_name:
advance_to(parse_ctx, part.arg_id_end);
detail::format_arg<OutputIt>(parse_ctx, ctx, value.str);
break;
case format_part_t::kind::replacement: {
const auto& arg_id_value = value.repl.arg_id.val;
const auto arg = value.repl.arg_id.kind == arg_id_kind::index
? ctx.arg(arg_id_value.index)
: ctx.arg(arg_id_value.name);
auto specs = value.repl.specs;
handle_dynamic_spec<width_checker>(specs.width, specs.width_ref, ctx);
handle_dynamic_spec<precision_checker>(specs.precision,
specs.precision_ref, ctx);
error_handler h;
numeric_specs_checker<error_handler> checker(h, arg.type());
if (specs.align == align::numeric) checker.require_numeric_argument();
if (specs.sign != sign::none) checker.check_sign();
if (specs.alt) checker.require_numeric_argument();
if (specs.precision >= 0) checker.check_precision();
advance_to(parse_ctx, part.arg_id_end);
ctx.advance_to(
visit_format_arg(arg_formatter<OutputIt, typename Context::char_type>(
ctx, nullptr, &specs),
arg));
break;
}
}
}
return ctx.out();
}
} // namespace cf
struct basic_compiled_format {};
template <typename S, typename = void>
struct compiled_format_base : basic_compiled_format {
using char_type = char_t<S>;
using parts_container = std::vector<detail::format_part<char_type>>;
parts_container compiled_parts;
explicit compiled_format_base(basic_string_view<char_type> format_str) {
compile_format_string<false>(format_str,
[this](const format_part<char_type>& part) {
compiled_parts.push_back(part);
});
}
const parts_container& parts() const { return compiled_parts; }
};
template <typename Char, unsigned N> struct format_part_array {
format_part<Char> data[N] = {};
FMT_CONSTEXPR format_part_array() = default;
};
template <typename Char, unsigned N>
FMT_CONSTEXPR format_part_array<Char, N> compile_to_parts(
basic_string_view<Char> format_str) {
format_part_array<Char, N> parts;
unsigned counter = 0;
// This is not a lambda for compatibility with older compilers.
struct {
format_part<Char>* parts;
unsigned* counter;
FMT_CONSTEXPR void operator()(const format_part<Char>& part) {
parts[(*counter)++] = part;
}
} collector{parts.data, &counter};
compile_format_string<true>(format_str, collector);
if (counter < N) {
parts.data[counter] =
format_part<Char>::make_text(basic_string_view<Char>());
}
return parts;
}
template <typename T> constexpr const T& constexpr_max(const T& a, const T& b) {
return (a < b) ? b : a;
}
template <typename S>
struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>>
: basic_compiled_format {
using char_type = char_t<S>;
FMT_CONSTEXPR explicit compiled_format_base(basic_string_view<char_type>) {}
// Workaround for old compilers. Format string compilation will not be
// performed there anyway.
#if FMT_USE_CONSTEXPR
static FMT_CONSTEXPR_DECL const unsigned num_format_parts =
constexpr_max(count_parts(to_string_view(S())), 1u);
#else
static const unsigned num_format_parts = 1;
#endif
using parts_container = format_part<char_type>[num_format_parts];
const parts_container& parts() const {
static FMT_CONSTEXPR_DECL const auto compiled_parts =
compile_to_parts<char_type, num_format_parts>(
detail::to_string_view(S()));
return compiled_parts.data;
}
};
template <typename S, typename... Args>
class compiled_format : private compiled_format_base<S> {
public:
using typename compiled_format_base<S>::char_type;
private:
basic_string_view<char_type> format_str_;
template <typename Context, typename OutputIt, typename CompiledFormat>
friend auto cf::vformat_to(OutputIt out, CompiledFormat& cf,
basic_format_args<Context> args) ->
typename Context::iterator;
public:
compiled_format() = delete;
explicit constexpr compiled_format(basic_string_view<char_type> format_str)
: compiled_format_base<S>(format_str), format_str_(format_str) {}
};
#ifdef __cpp_if_constexpr
template <typename... Args> struct type_list {};
// Returns a reference to the argument at index N from [first, rest...].
template <int N, typename T, typename... Args>
constexpr const auto& get([[maybe_unused]] const T& first,
[[maybe_unused]] const Args&... rest) {
static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
if constexpr (N == 0)
return first;
else
return get<N - 1>(rest...);
}
template <int N, typename> struct get_type_impl;
template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
using type = remove_cvref_t<decltype(get<N>(std::declval<Args>()...))>;
};
template <int N, typename T>
using get_type = typename get_type_impl<N, T>::type;
template <typename T> struct is_compiled_format : std::false_type {};
template <typename Char> struct text {
basic_string_view<Char> data;
using char_type = Char;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&...) const {
return write<Char>(out, data);
}
};
template <typename Char>
struct is_compiled_format<text<Char>> : std::true_type {};
template <typename Char>
constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
size_t size) {
return {{&s[pos], size}};
}
template <typename Char> struct code_unit {
Char value;
using char_type = Char;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&...) const {
return write<Char>(out, value);
}
};
template <typename Char>
struct is_compiled_format<code_unit<Char>> : std::true_type {};
// A replacement field that refers to argument N.
template <typename Char, typename T, int N> struct field {
using char_type = Char;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&... args) const {
// This ensures that the argument type is convertile to `const T&`.
const T& arg = get<N>(args...);
return write<Char>(out, arg);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<field<Char, T, N>> : std::true_type {};
// A replacement field that refers to argument N and has format specifiers.
template <typename Char, typename T, int N> struct spec_field {
using char_type = Char;
mutable formatter<T, Char> fmt;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&... args) const {
// This ensures that the argument type is convertile to `const T&`.
const T& arg = get<N>(args...);
const auto& vargs =
make_format_args<basic_format_context<OutputIt, Char>>(args...);
basic_format_context<OutputIt, Char> ctx(out, vargs);
return fmt.format(arg, ctx);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
template <typename L, typename R> struct concat {
L lhs;
R rhs;
using char_type = typename L::char_type;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&... args) const {
out = lhs.format(out, args...);
return rhs.format(out, args...);
}
};
template <typename L, typename R>
struct is_compiled_format<concat<L, R>> : std::true_type {};
template <typename L, typename R>
constexpr concat<L, R> make_concat(L lhs, R rhs) {
return {lhs, rhs};
}
struct unknown_format {};
template <typename Char>
constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
for (size_t size = str.size(); pos != size; ++pos) {
if (str[pos] == '{' || str[pos] == '}') break;
}
return pos;
}
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str);
template <typename Args, size_t POS, int ID, typename T, typename S>
constexpr auto parse_tail(T head, S format_str) {
if constexpr (POS !=
basic_string_view<typename S::char_type>(format_str).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
unknown_format>())
return tail;
else
return make_concat(head, tail);
} else {
return head;
}
}
template <typename T, typename Char> struct parse_specs_result {
formatter<T, Char> fmt;
size_t end;
int next_arg_id;
};
template <typename T, typename Char>
constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
size_t pos, int arg_id) {
str.remove_prefix(pos);
auto ctx = basic_format_parse_context<Char>(str, {}, arg_id + 1);
auto f = formatter<T, Char>();
auto end = f.parse(ctx);
return {f, pos + (end - str.data()) + 1, ctx.next_arg_id()};
}
// Compiles a non-empty format string and returns the compiled representation
// or unknown_format() on unrecognized input.
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str) {
using char_type = typename S::char_type;
constexpr basic_string_view<char_type> str = format_str;
if constexpr (str[POS] == '{') {
if (POS + 1 == str.size())
throw format_error("unmatched '{' in format string");
if constexpr (str[POS + 1] == '{') {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else if constexpr (str[POS + 1] == '}') {
using type = get_type<ID, Args>;
return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
format_str);
} else if constexpr (str[POS + 1] == ':') {
using type = get_type<ID, Args>;
constexpr auto result = parse_specs<type>(str, POS + 2, ID);
return parse_tail<Args, result.end, result.next_arg_id>(
spec_field<char_type, type, ID>{result.fmt}, format_str);
} else {
return unknown_format();
}
} else if constexpr (str[POS] == '}') {
if (POS + 1 == str.size())
throw format_error("unmatched '}' in format string");
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else {
constexpr auto end = parse_text(str, POS + 1);
if constexpr (end - POS > 1) {
return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
format_str);
} else {
return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
format_str);
}
}
}
template <typename... Args, typename S,
FMT_ENABLE_IF(is_compile_string<S>::value ||
detail::is_compiled_string<S>::value)>
constexpr auto compile(S format_str) {
constexpr basic_string_view<typename S::char_type> str = format_str;
if constexpr (str.size() == 0) {
return detail::make_text(str, 0, 0);
} else {
constexpr auto result =
detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(result)>,
detail::unknown_format>()) {
return detail::compiled_format<S, Args...>(to_string_view(format_str));
} else {
return result;
}
}
}
#else
template <typename... Args, typename S,
FMT_ENABLE_IF(is_compile_string<S>::value)>
constexpr auto compile(S format_str) -> detail::compiled_format<S, Args...> {
return detail::compiled_format<S, Args...>(to_string_view(format_str));
}
#endif // __cpp_if_constexpr
// Compiles the format string which must be a string literal.
template <typename... Args, typename Char, size_t N>
auto compile(const Char (&format_str)[N])
-> detail::compiled_format<const Char*, Args...> {
return detail::compiled_format<const Char*, Args...>(
basic_string_view<Char>(format_str, N - 1));
}
} // namespace detail
// DEPRECATED! use FMT_COMPILE instead.
template <typename... Args>
FMT_DEPRECATED auto compile(const Args&... args)
-> decltype(detail::compile(args...)) {
return detail::compile(args...);
}
#if FMT_USE_CONSTEXPR
# ifdef __cpp_if_constexpr
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
const Args&... args) {
basic_memory_buffer<Char> buffer;
cf.format(detail::buffer_appender<Char>(buffer), args...);
return to_string(buffer);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
return cf.format(out, args...);
}
# endif // __cpp_if_constexpr
#endif // FMT_USE_CONSTEXPR
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value)>
std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
basic_memory_buffer<Char> buffer;
using context = buffer_context<Char>;
detail::cf::vformat_to<context>(detail::buffer_appender<Char>(buffer), cf,
make_format_args<context>(args...));
return to_string(buffer);
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
Args&&... args) {
#ifdef __cpp_if_constexpr
if constexpr (std::is_same<typename S::char_type, char>::value) {
constexpr basic_string_view<typename S::char_type> str = S();
if (str.size() == 2 && str[0] == '{' && str[1] == '}')
return fmt::to_string(detail::first(args...));
}
#endif
constexpr auto compiled = detail::compile<Args...>(S());
return format(compiled, std::forward<Args>(args)...);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
using char_type = typename CompiledFormat::char_type;
using context = format_context_t<OutputIt, char_type>;
return detail::cf::vformat_to<context>(out, cf,
make_format_args<context>(args...));
}
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
OutputIt format_to(OutputIt out, const S&, const Args&... args) {
constexpr auto compiled = detail::compile<Args...>(S());
return format_to(out, compiled, args...);
}
template <typename OutputIt, typename CompiledFormat, typename... Args>
auto format_to_n(OutputIt out, size_t n, const CompiledFormat& cf,
const Args&... args) ->
typename std::enable_if<
detail::is_output_iterator<OutputIt,
typename CompiledFormat::char_type>::value &&
std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value,
format_to_n_result<OutputIt>>::type {
auto it =
format_to(detail::truncating_iterator<OutputIt>(out, n), cf, args...);
return {it.base(), it.count()};
}
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n, const S&,
const Args&... args) {
constexpr auto compiled = detail::compile<Args...>(S());
auto it = format_to(detail::truncating_iterator<OutputIt>(out, n), compiled,
args...);
return {it.base(), it.count()};
}
template <typename CompiledFormat, typename... Args>
size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
return format_to(detail::counting_iterator(), cf, args...).count();
}
FMT_END_NAMESPACE
#endif // FMT_COMPILE_H_

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// Formatting library for C++ - std::locale support
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_LOCALE_H_
#define FMT_LOCALE_H_
#include <locale>
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char>
std::basic_string<Char> vformat(
const std::locale& loc, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
detail::vformat_to(buffer, format_str, args, detail::locale_ref(loc));
return fmt::to_string(buffer);
}
} // namespace detail
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const std::locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
return detail::vformat(loc, to_string_view(format_str), args);
}
template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const std::locale& loc,
const S& format_str, Args&&... args) {
return detail::vformat(loc, to_string_view(format_str),
fmt::make_args_checked<Args...>(format_str, args...));
}
template <typename S, typename OutputIt, typename... Args,
typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
inline OutputIt vformat_to(
OutputIt out, const std::locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out));
vformat_to(buf, to_string_view(format_str), args, detail::locale_ref(loc));
return detail::get_iterator(buf);
}
template <typename OutputIt, typename S, typename... Args,
bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value>
inline auto format_to(OutputIt out, const std::locale& loc,
const S& format_str, Args&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
return vformat_to(out, loc, to_string_view(format_str), vargs);
}
FMT_END_NAMESPACE
#endif // FMT_LOCALE_H_

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// Formatting library for C++ - optional OS-specific functionality
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_OS_H_
#define FMT_OS_H_
#if defined(__MINGW32__) || defined(__CYGWIN__)
// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
# undef __STRICT_ANSI__
#endif
#include <cerrno>
#include <clocale> // for locale_t
#include <cstddef>
#include <cstdio>
#include <cstdlib> // for strtod_l
#if defined __APPLE__ || defined(__FreeBSD__)
# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
#endif
#include "format.h"
// UWP doesn't provide _pipe.
#if FMT_HAS_INCLUDE("winapifamily.h")
# include <winapifamily.h>
#endif
#if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \
defined(__linux__)) && \
(!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
# include <fcntl.h> // for O_RDONLY
# define FMT_USE_FCNTL 1
#else
# define FMT_USE_FCNTL 0
#endif
#ifndef FMT_POSIX
# if defined(_WIN32) && !defined(__MINGW32__)
// Fix warnings about deprecated symbols.
# define FMT_POSIX(call) _##call
# else
# define FMT_POSIX(call) call
# endif
#endif
// Calls to system functions are wrapped in FMT_SYSTEM for testability.
#ifdef FMT_SYSTEM
# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
#else
# define FMT_SYSTEM(call) ::call
# ifdef _WIN32
// Fix warnings about deprecated symbols.
# define FMT_POSIX_CALL(call) ::_##call
# else
# define FMT_POSIX_CALL(call) ::call
# endif
#endif
// Retries the expression while it evaluates to error_result and errno
// equals to EINTR.
#ifndef _WIN32
# define FMT_RETRY_VAL(result, expression, error_result) \
do { \
(result) = (expression); \
} while ((result) == (error_result) && errno == EINTR)
#else
# define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
#endif
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
FMT_BEGIN_NAMESPACE
/**
\rst
A reference to a null-terminated string. It can be constructed from a C
string or ``std::string``.
You can use one of the following type aliases for common character types:
+---------------+-----------------------------+
| Type | Definition |
+===============+=============================+
| cstring_view | basic_cstring_view<char> |
+---------------+-----------------------------+
| wcstring_view | basic_cstring_view<wchar_t> |
+---------------+-----------------------------+
This class is most useful as a parameter type to allow passing
different types of strings to a function, for example::
template <typename... Args>
std::string format(cstring_view format_str, const Args & ... args);
format("{}", 42);
format(std::string("{}"), 42);
\endrst
*/
template <typename Char> class basic_cstring_view {
private:
const Char* data_;
public:
/** Constructs a string reference object from a C string. */
basic_cstring_view(const Char* s) : data_(s) {}
/**
\rst
Constructs a string reference from an ``std::string`` object.
\endrst
*/
basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
/** Returns the pointer to a C string. */
const Char* c_str() const { return data_; }
};
using cstring_view = basic_cstring_view<char>;
using wcstring_view = basic_cstring_view<wchar_t>;
// An error code.
class error_code {
private:
int value_;
public:
explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
int get() const FMT_NOEXCEPT { return value_; }
};
#ifdef _WIN32
namespace detail {
// A converter from UTF-16 to UTF-8.
// It is only provided for Windows since other systems support UTF-8 natively.
class utf16_to_utf8 {
private:
memory_buffer buffer_;
public:
utf16_to_utf8() {}
FMT_API explicit utf16_to_utf8(wstring_view s);
operator string_view() const { return string_view(&buffer_[0], size()); }
size_t size() const { return buffer_.size() - 1; }
const char* c_str() const { return &buffer_[0]; }
std::string str() const { return std::string(&buffer_[0], size()); }
// Performs conversion returning a system error code instead of
// throwing exception on conversion error. This method may still throw
// in case of memory allocation error.
FMT_API int convert(wstring_view s);
};
FMT_API void format_windows_error(buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT;
} // namespace detail
/** A Windows error. */
class windows_error : public system_error {
private:
FMT_API void init(int error_code, string_view format_str, format_args args);
public:
/**
\rst
Constructs a :class:`fmt::windows_error` object with the description
of the form
.. parsed-literal::
*<message>*: *<system-message>*
where *<message>* is the formatted message and *<system-message>* is the
system message corresponding to the error code.
*error_code* is a Windows error code as given by ``GetLastError``.
If *error_code* is not a valid error code such as -1, the system message
will look like "error -1".
**Example**::
// This throws a windows_error with the description
// cannot open file 'madeup': The system cannot find the file specified.
// or similar (system message may vary).
const char *filename = "madeup";
LPOFSTRUCT of = LPOFSTRUCT();
HFILE file = OpenFile(filename, &of, OF_READ);
if (file == HFILE_ERROR) {
throw fmt::windows_error(GetLastError(),
"cannot open file '{}'", filename);
}
\endrst
*/
template <typename... Args>
windows_error(int error_code, string_view message, const Args&... args) {
init(error_code, message, make_format_args(args...));
}
};
// Reports a Windows error without throwing an exception.
// Can be used to report errors from destructors.
FMT_API void report_windows_error(int error_code,
string_view message) FMT_NOEXCEPT;
#endif // _WIN32
// A buffered file.
class buffered_file {
private:
FILE* file_;
friend class file;
explicit buffered_file(FILE* f) : file_(f) {}
public:
buffered_file(const buffered_file&) = delete;
void operator=(const buffered_file&) = delete;
// Constructs a buffered_file object which doesn't represent any file.
buffered_file() FMT_NOEXCEPT : file_(nullptr) {}
// Destroys the object closing the file it represents if any.
FMT_API ~buffered_file() FMT_NOEXCEPT;
public:
buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) {
other.file_ = nullptr;
}
buffered_file& operator=(buffered_file&& other) {
close();
file_ = other.file_;
other.file_ = nullptr;
return *this;
}
// Opens a file.
FMT_API buffered_file(cstring_view filename, cstring_view mode);
// Closes the file.
FMT_API void close();
// Returns the pointer to a FILE object representing this file.
FILE* get() const FMT_NOEXCEPT { return file_; }
// We place parentheses around fileno to workaround a bug in some versions
// of MinGW that define fileno as a macro.
FMT_API int(fileno)() const;
void vprint(string_view format_str, format_args args) {
fmt::vprint(file_, format_str, args);
}
template <typename... Args>
inline void print(string_view format_str, const Args&... args) {
vprint(format_str, make_format_args(args...));
}
};
#if FMT_USE_FCNTL
// A file. Closed file is represented by a file object with descriptor -1.
// Methods that are not declared with FMT_NOEXCEPT may throw
// fmt::system_error in case of failure. Note that some errors such as
// closing the file multiple times will cause a crash on Windows rather
// than an exception. You can get standard behavior by overriding the
// invalid parameter handler with _set_invalid_parameter_handler.
class file {
private:
int fd_; // File descriptor.
// Constructs a file object with a given descriptor.
explicit file(int fd) : fd_(fd) {}
public:
// Possible values for the oflag argument to the constructor.
enum {
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing.
CREATE = FMT_POSIX(O_CREAT), // Create if the file doesn't exist.
APPEND = FMT_POSIX(O_APPEND) // Open in append mode.
};
// Constructs a file object which doesn't represent any file.
file() FMT_NOEXCEPT : fd_(-1) {}
// Opens a file and constructs a file object representing this file.
FMT_API file(cstring_view path, int oflag);
public:
file(const file&) = delete;
void operator=(const file&) = delete;
file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
file& operator=(file&& other) FMT_NOEXCEPT {
close();
fd_ = other.fd_;
other.fd_ = -1;
return *this;
}
// Destroys the object closing the file it represents if any.
FMT_API ~file() FMT_NOEXCEPT;
// Returns the file descriptor.
int descriptor() const FMT_NOEXCEPT { return fd_; }
// Closes the file.
FMT_API void close();
// Returns the file size. The size has signed type for consistency with
// stat::st_size.
FMT_API long long size() const;
// Attempts to read count bytes from the file into the specified buffer.
FMT_API size_t read(void* buffer, size_t count);
// Attempts to write count bytes from the specified buffer to the file.
FMT_API size_t write(const void* buffer, size_t count);
// Duplicates a file descriptor with the dup function and returns
// the duplicate as a file object.
FMT_API static file dup(int fd);
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
FMT_API void dup2(int fd);
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
FMT_API void dup2(int fd, error_code& ec) FMT_NOEXCEPT;
// Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively.
FMT_API static void pipe(file& read_end, file& write_end);
// Creates a buffered_file object associated with this file and detaches
// this file object from the file.
FMT_API buffered_file fdopen(const char* mode);
};
// Returns the memory page size.
long getpagesize();
namespace detail {
struct buffer_size {
size_t value = 0;
buffer_size operator=(size_t val) const {
auto bs = buffer_size();
bs.value = val;
return bs;
}
};
struct ostream_params {
int oflag = file::WRONLY | file::CREATE;
size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
ostream_params() {}
template <typename... T>
ostream_params(T... params, int oflag) : ostream_params(params...) {
this->oflag = oflag;
}
template <typename... T>
ostream_params(T... params, detail::buffer_size bs)
: ostream_params(params...) {
this->buffer_size = bs.value;
}
};
} // namespace detail
static constexpr detail::buffer_size buffer_size;
// A fast output stream which is not thread-safe.
class ostream final : private detail::buffer<char> {
private:
file file_;
void flush() {
if (size() == 0) return;
file_.write(data(), size());
clear();
}
FMT_API void grow(size_t) override final;
ostream(cstring_view path, const detail::ostream_params& params)
: file_(path, params.oflag) {
set(new char[params.buffer_size], params.buffer_size);
}
public:
ostream(ostream&& other)
: detail::buffer<char>(other.data(), other.size(), other.capacity()),
file_(std::move(other.file_)) {
other.set(nullptr, 0);
}
~ostream() {
flush();
delete[] data();
}
template <typename... T>
friend ostream output_file(cstring_view path, T... params);
void close() {
flush();
file_.close();
}
template <typename S, typename... Args>
void print(const S& format_str, const Args&... args) {
format_to(detail::buffer_appender<char>(*this), format_str, args...);
}
};
/**
Opens a file for writing. Supported parameters passed in `params`:
* ``<integer>``: Output flags (``file::WRONLY | file::CREATE`` by default)
* ``buffer_size=<integer>``: Output buffer size
*/
template <typename... T>
inline ostream output_file(cstring_view path, T... params) {
return {path, detail::ostream_params(params...)};
}
#endif // FMT_USE_FCNTL
#ifdef FMT_LOCALE
// A "C" numeric locale.
class locale {
private:
# ifdef _WIN32
using locale_t = _locale_t;
static void freelocale(locale_t loc) { _free_locale(loc); }
static double strtod_l(const char* nptr, char** endptr, _locale_t loc) {
return _strtod_l(nptr, endptr, loc);
}
# endif
locale_t locale_;
public:
using type = locale_t;
locale(const locale&) = delete;
void operator=(const locale&) = delete;
locale() {
# ifndef _WIN32
locale_ = FMT_SYSTEM(newlocale(LC_NUMERIC_MASK, "C", nullptr));
# else
locale_ = _create_locale(LC_NUMERIC, "C");
# endif
if (!locale_) FMT_THROW(system_error(errno, "cannot create locale"));
}
~locale() { freelocale(locale_); }
type get() const { return locale_; }
// Converts string to floating-point number and advances str past the end
// of the parsed input.
double strtod(const char*& str) const {
char* end = nullptr;
double result = strtod_l(str, &end, locale_);
str = end;
return result;
}
};
using Locale FMT_DEPRECATED_ALIAS = locale;
#endif // FMT_LOCALE
FMT_END_NAMESPACE
#endif // FMT_OS_H_

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// Formatting library for C++ - std::ostream support
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_OSTREAM_H_
#define FMT_OSTREAM_H_
#include <ostream>
#include "format.h"
FMT_BEGIN_NAMESPACE
template <typename Char> class basic_printf_parse_context;
template <typename OutputIt, typename Char> class basic_printf_context;
namespace detail {
template <class Char> class formatbuf : public std::basic_streambuf<Char> {
private:
using int_type = typename std::basic_streambuf<Char>::int_type;
using traits_type = typename std::basic_streambuf<Char>::traits_type;
buffer<Char>& buffer_;
public:
formatbuf(buffer<Char>& buf) : buffer_(buf) {}
protected:
// The put-area is actually always empty. This makes the implementation
// simpler and has the advantage that the streambuf and the buffer are always
// in sync and sputc never writes into uninitialized memory. The obvious
// disadvantage is that each call to sputc always results in a (virtual) call
// to overflow. There is no disadvantage here for sputn since this always
// results in a call to xsputn.
int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE {
if (!traits_type::eq_int_type(ch, traits_type::eof()))
buffer_.push_back(static_cast<Char>(ch));
return ch;
}
std::streamsize xsputn(const Char* s, std::streamsize count) FMT_OVERRIDE {
buffer_.append(s, s + count);
return count;
}
};
struct converter {
template <typename T, FMT_ENABLE_IF(is_integral<T>::value)> converter(T);
};
template <typename Char> struct test_stream : std::basic_ostream<Char> {
private:
void_t<> operator<<(converter);
};
// Hide insertion operators for built-in types.
template <typename Char, typename Traits>
void_t<> operator<<(std::basic_ostream<Char, Traits>&, Char);
template <typename Char, typename Traits>
void_t<> operator<<(std::basic_ostream<Char, Traits>&, char);
template <typename Traits>
void_t<> operator<<(std::basic_ostream<char, Traits>&, char);
template <typename Traits>
void_t<> operator<<(std::basic_ostream<char, Traits>&, signed char);
template <typename Traits>
void_t<> operator<<(std::basic_ostream<char, Traits>&, unsigned char);
// Checks if T has a user-defined operator<< (e.g. not a member of
// std::ostream).
template <typename T, typename Char> class is_streamable {
private:
template <typename U>
static bool_constant<!std::is_same<decltype(std::declval<test_stream<Char>&>()
<< std::declval<U>()),
void_t<>>::value>
test(int);
template <typename> static std::false_type test(...);
using result = decltype(test<T>(0));
public:
static const bool value = result::value;
};
// Write the content of buf to os.
template <typename Char>
void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
const Char* buf_data = buf.data();
using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
unsigned_streamsize size = buf.size();
unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>());
do {
unsigned_streamsize n = size <= max_size ? size : max_size;
os.write(buf_data, static_cast<std::streamsize>(n));
buf_data += n;
size -= n;
} while (size != 0);
}
template <typename Char, typename T>
void format_value(buffer<Char>& buf, const T& value,
locale_ref loc = locale_ref()) {
formatbuf<Char> format_buf(buf);
std::basic_ostream<Char> output(&format_buf);
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
if (loc) output.imbue(loc.get<std::locale>());
#endif
output << value;
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
buf.try_resize(buf.size());
}
// Formats an object of type T that has an overloaded ostream operator<<.
template <typename T, typename Char>
struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
: private formatter<basic_string_view<Char>, Char> {
FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
-> decltype(ctx.begin()) {
return formatter<basic_string_view<Char>, Char>::parse(ctx);
}
template <typename ParseCtx,
FMT_ENABLE_IF(std::is_same<
ParseCtx, basic_printf_parse_context<Char>>::value)>
auto parse(ParseCtx& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename OutputIt>
auto format(const T& value, basic_format_context<OutputIt, Char>& ctx)
-> OutputIt {
basic_memory_buffer<Char> buffer;
format_value(buffer, value, ctx.locale());
basic_string_view<Char> str(buffer.data(), buffer.size());
return formatter<basic_string_view<Char>, Char>::format(str, ctx);
}
template <typename OutputIt>
auto format(const T& value, basic_printf_context<OutputIt, Char>& ctx)
-> OutputIt {
basic_memory_buffer<Char> buffer;
format_value(buffer, value, ctx.locale());
return std::copy(buffer.begin(), buffer.end(), ctx.out());
}
};
} // namespace detail
template <typename Char>
void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
detail::vformat_to(buffer, format_str, args);
detail::write_buffer(os, buffer);
}
/**
\rst
Prints formatted data to the stream *os*.
**Example**::
fmt::print(cerr, "Don't {}!", "panic");
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
void print(std::basic_ostream<Char>& os, const S& format_str, Args&&... args) {
vprint(os, to_string_view(format_str),
fmt::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE
#endif // FMT_OSTREAM_H_

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@ -0,0 +1,2 @@
#include "os.h"
#warning "fmt/posix.h is deprecated; use fmt/os.h instead"

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// Formatting library for C++ - legacy printf implementation
//
// Copyright (c) 2012 - 2016, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_PRINTF_H_
#define FMT_PRINTF_H_
#include <algorithm> // std::max
#include <limits> // std::numeric_limits
#include "ostream.h"
FMT_BEGIN_NAMESPACE
namespace detail {
// Checks if a value fits in int - used to avoid warnings about comparing
// signed and unsigned integers.
template <bool IsSigned> struct int_checker {
template <typename T> static bool fits_in_int(T value) {
unsigned max = max_value<int>();
return value <= max;
}
static bool fits_in_int(bool) { return true; }
};
template <> struct int_checker<true> {
template <typename T> static bool fits_in_int(T value) {
return value >= (std::numeric_limits<int>::min)() &&
value <= max_value<int>();
}
static bool fits_in_int(int) { return true; }
};
class printf_precision_handler {
public:
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
int operator()(T value) {
if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
FMT_THROW(format_error("number is too big"));
return (std::max)(static_cast<int>(value), 0);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
int operator()(T) {
FMT_THROW(format_error("precision is not integer"));
return 0;
}
};
// An argument visitor that returns true iff arg is a zero integer.
class is_zero_int {
public:
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
bool operator()(T value) {
return value == 0;
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
bool operator()(T) {
return false;
}
};
template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {};
template <> struct make_unsigned_or_bool<bool> { using type = bool; };
template <typename T, typename Context> class arg_converter {
private:
using char_type = typename Context::char_type;
basic_format_arg<Context>& arg_;
char_type type_;
public:
arg_converter(basic_format_arg<Context>& arg, char_type type)
: arg_(arg), type_(type) {}
void operator()(bool value) {
if (type_ != 's') operator()<bool>(value);
}
template <typename U, FMT_ENABLE_IF(std::is_integral<U>::value)>
void operator()(U value) {
bool is_signed = type_ == 'd' || type_ == 'i';
using target_type = conditional_t<std::is_same<T, void>::value, U, T>;
if (const_check(sizeof(target_type) <= sizeof(int))) {
// Extra casts are used to silence warnings.
if (is_signed) {
arg_ = detail::make_arg<Context>(
static_cast<int>(static_cast<target_type>(value)));
} else {
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
arg_ = detail::make_arg<Context>(
static_cast<unsigned>(static_cast<unsigned_type>(value)));
}
} else {
if (is_signed) {
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
arg_ = detail::make_arg<Context>(static_cast<long long>(value));
} else {
arg_ = detail::make_arg<Context>(
static_cast<typename make_unsigned_or_bool<U>::type>(value));
}
}
}
template <typename U, FMT_ENABLE_IF(!std::is_integral<U>::value)>
void operator()(U) {} // No conversion needed for non-integral types.
};
// Converts an integer argument to T for printf, if T is an integral type.
// If T is void, the argument is converted to corresponding signed or unsigned
// type depending on the type specifier: 'd' and 'i' - signed, other -
// unsigned).
template <typename T, typename Context, typename Char>
void convert_arg(basic_format_arg<Context>& arg, Char type) {
visit_format_arg(arg_converter<T, Context>(arg, type), arg);
}
// Converts an integer argument to char for printf.
template <typename Context> class char_converter {
private:
basic_format_arg<Context>& arg_;
public:
explicit char_converter(basic_format_arg<Context>& arg) : arg_(arg) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
void operator()(T value) {
arg_ = detail::make_arg<Context>(
static_cast<typename Context::char_type>(value));
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
void operator()(T) {} // No conversion needed for non-integral types.
};
// An argument visitor that return a pointer to a C string if argument is a
// string or null otherwise.
template <typename Char> struct get_cstring {
template <typename T> const Char* operator()(T) { return nullptr; }
const Char* operator()(const Char* s) { return s; }
};
// Checks if an argument is a valid printf width specifier and sets
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
private:
using format_specs = basic_format_specs<Char>;
format_specs& specs_;
public:
explicit printf_width_handler(format_specs& specs) : specs_(specs) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
unsigned operator()(T value) {
auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
if (detail::is_negative(value)) {
specs_.align = align::left;
width = 0 - width;
}
unsigned int_max = max_value<int>();
if (width > int_max) FMT_THROW(format_error("number is too big"));
return static_cast<unsigned>(width);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
unsigned operator()(T) {
FMT_THROW(format_error("width is not integer"));
return 0;
}
};
template <typename Char, typename Context>
void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
Context(buffer_appender<Char>(buf), format, args).format();
}
} // namespace detail
// For printing into memory_buffer.
template <typename Char, typename Context>
FMT_DEPRECATED void printf(detail::buffer<Char>& buf,
basic_string_view<Char> format,
basic_format_args<Context> args) {
return detail::vprintf(buf, format, args);
}
using detail::vprintf;
template <typename Char>
class basic_printf_parse_context : public basic_format_parse_context<Char> {
using basic_format_parse_context<Char>::basic_format_parse_context;
};
template <typename OutputIt, typename Char> class basic_printf_context;
/**
\rst
The ``printf`` argument formatter.
\endrst
*/
template <typename OutputIt, typename Char>
class printf_arg_formatter : public detail::arg_formatter_base<OutputIt, Char> {
public:
using iterator = OutputIt;
private:
using char_type = Char;
using base = detail::arg_formatter_base<OutputIt, Char>;
using context_type = basic_printf_context<OutputIt, Char>;
context_type& context_;
void write_null_pointer(char) {
this->specs()->type = 0;
this->write("(nil)");
}
void write_null_pointer(wchar_t) {
this->specs()->type = 0;
this->write(L"(nil)");
}
public:
using format_specs = typename base::format_specs;
/**
\rst
Constructs an argument formatter object.
*buffer* is a reference to the output buffer and *specs* contains format
specifier information for standard argument types.
\endrst
*/
printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
: base(iter, &specs, detail::locale_ref()), context_(ctx) {}
template <typename T, FMT_ENABLE_IF(fmt::detail::is_integral<T>::value)>
iterator operator()(T value) {
// MSVC2013 fails to compile separate overloads for bool and char_type so
// use std::is_same instead.
if (std::is_same<T, bool>::value) {
format_specs& fmt_specs = *this->specs();
if (fmt_specs.type != 's') return base::operator()(value ? 1 : 0);
fmt_specs.type = 0;
this->write(value != 0);
} else if (std::is_same<T, char_type>::value) {
format_specs& fmt_specs = *this->specs();
if (fmt_specs.type && fmt_specs.type != 'c')
return (*this)(static_cast<int>(value));
fmt_specs.sign = sign::none;
fmt_specs.alt = false;
fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
// align::numeric needs to be overwritten here since the '0' flag is
// ignored for non-numeric types
if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
fmt_specs.align = align::right;
return base::operator()(value);
} else {
return base::operator()(value);
}
return this->out();
}
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
iterator operator()(T value) {
return base::operator()(value);
}
/** Formats a null-terminated C string. */
iterator operator()(const char* value) {
if (value)
base::operator()(value);
else if (this->specs()->type == 'p')
write_null_pointer(char_type());
else
this->write("(null)");
return this->out();
}
/** Formats a null-terminated wide C string. */
iterator operator()(const wchar_t* value) {
if (value)
base::operator()(value);
else if (this->specs()->type == 'p')
write_null_pointer(char_type());
else
this->write(L"(null)");
return this->out();
}
iterator operator()(basic_string_view<char_type> value) {
return base::operator()(value);
}
iterator operator()(monostate value) { return base::operator()(value); }
/** Formats a pointer. */
iterator operator()(const void* value) {
if (value) return base::operator()(value);
this->specs()->type = 0;
write_null_pointer(char_type());
return this->out();
}
/** Formats an argument of a custom (user-defined) type. */
iterator operator()(typename basic_format_arg<context_type>::handle handle) {
handle.format(context_.parse_context(), context_);
return this->out();
}
};
template <typename T> struct printf_formatter {
printf_formatter() = delete;
template <typename ParseContext>
auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
auto format(const T& value, FormatContext& ctx) -> decltype(ctx.out()) {
detail::format_value(detail::get_container(ctx.out()), value);
return ctx.out();
}
};
/**
This template formats data and writes the output through an output iterator.
*/
template <typename OutputIt, typename Char> class basic_printf_context {
public:
/** The character type for the output. */
using char_type = Char;
using iterator = OutputIt;
using format_arg = basic_format_arg<basic_printf_context>;
using parse_context_type = basic_printf_parse_context<Char>;
template <typename T> using formatter_type = printf_formatter<T>;
private:
using format_specs = basic_format_specs<char_type>;
OutputIt out_;
basic_format_args<basic_printf_context> args_;
parse_context_type parse_ctx_;
static void parse_flags(format_specs& specs, const Char*& it,
const Char* end);
// Returns the argument with specified index or, if arg_index is -1, the next
// argument.
format_arg get_arg(int arg_index = -1);
// Parses argument index, flags and width and returns the argument index.
int parse_header(const Char*& it, const Char* end, format_specs& specs);
public:
/**
\rst
Constructs a ``printf_context`` object. References to the arguments are
stored in the context object so make sure they have appropriate lifetimes.
\endrst
*/
basic_printf_context(OutputIt out, basic_string_view<char_type> format_str,
basic_format_args<basic_printf_context> args)
: out_(out), args_(args), parse_ctx_(format_str) {}
OutputIt out() { return out_; }
void advance_to(OutputIt it) { out_ = it; }
detail::locale_ref locale() { return {}; }
format_arg arg(int id) const { return args_.get(id); }
parse_context_type& parse_context() { return parse_ctx_; }
FMT_CONSTEXPR void on_error(const char* message) {
parse_ctx_.on_error(message);
}
/** Formats stored arguments and writes the output to the range. */
template <typename ArgFormatter = printf_arg_formatter<OutputIt, Char>>
OutputIt format();
};
template <typename OutputIt, typename Char>
void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs,
const Char*& it,
const Char* end) {
for (; it != end; ++it) {
switch (*it) {
case '-':
specs.align = align::left;
break;
case '+':
specs.sign = sign::plus;
break;
case '0':
specs.fill[0] = '0';
break;
case ' ':
if (specs.sign != sign::plus) {
specs.sign = sign::space;
}
break;
case '#':
specs.alt = true;
break;
default:
return;
}
}
}
template <typename OutputIt, typename Char>
typename basic_printf_context<OutputIt, Char>::format_arg
basic_printf_context<OutputIt, Char>::get_arg(int arg_index) {
if (arg_index < 0)
arg_index = parse_ctx_.next_arg_id();
else
parse_ctx_.check_arg_id(--arg_index);
return detail::get_arg(*this, arg_index);
}
template <typename OutputIt, typename Char>
int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it,
const Char* end,
format_specs& specs) {
int arg_index = -1;
char_type c = *it;
if (c >= '0' && c <= '9') {
// Parse an argument index (if followed by '$') or a width possibly
// preceded with '0' flag(s).
detail::error_handler eh;
int value = parse_nonnegative_int(it, end, eh);
if (it != end && *it == '$') { // value is an argument index
++it;
arg_index = value;
} else {
if (c == '0') specs.fill[0] = '0';
if (value != 0) {
// Nonzero value means that we parsed width and don't need to
// parse it or flags again, so return now.
specs.width = value;
return arg_index;
}
}
}
parse_flags(specs, it, end);
// Parse width.
if (it != end) {
if (*it >= '0' && *it <= '9') {
detail::error_handler eh;
specs.width = parse_nonnegative_int(it, end, eh);
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
detail::printf_width_handler<char_type>(specs), get_arg()));
}
}
return arg_index;
}
template <typename OutputIt, typename Char>
template <typename ArgFormatter>
OutputIt basic_printf_context<OutputIt, Char>::format() {
auto out = this->out();
const Char* start = parse_ctx_.begin();
const Char* end = parse_ctx_.end();
auto it = start;
while (it != end) {
char_type c = *it++;
if (c != '%') continue;
if (it != end && *it == c) {
out = std::copy(start, it, out);
start = ++it;
continue;
}
out = std::copy(start, it - 1, out);
format_specs specs;
specs.align = align::right;
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs);
if (arg_index == 0) on_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
++it;
c = it != end ? *it : 0;
if ('0' <= c && c <= '9') {
detail::error_handler eh;
specs.precision = parse_nonnegative_int(it, end, eh);
} else if (c == '*') {
++it;
specs.precision = static_cast<int>(
visit_format_arg(detail::printf_precision_handler(), get_arg()));
} else {
specs.precision = 0;
}
}
format_arg arg = get_arg(arg_index);
// For d, i, o, u, x, and X conversion specifiers, if a precision is
// specified, the '0' flag is ignored
if (specs.precision >= 0 && arg.is_integral())
specs.fill[0] =
' '; // Ignore '0' flag for non-numeric types or if '-' present.
if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
auto str_end = str + specs.precision;
auto nul = std::find(str, str_end, Char());
arg = detail::make_arg<basic_printf_context>(basic_string_view<Char>(
str,
detail::to_unsigned(nul != str_end ? nul - str : specs.precision)));
}
if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
specs.alt = false;
if (specs.fill[0] == '0') {
if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
else
specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
// flag is also present.
}
// Parse length and convert the argument to the required type.
c = it != end ? *it++ : 0;
char_type t = it != end ? *it : 0;
using detail::convert_arg;
switch (c) {
case 'h':
if (t == 'h') {
++it;
t = it != end ? *it : 0;
convert_arg<signed char>(arg, t);
} else {
convert_arg<short>(arg, t);
}
break;
case 'l':
if (t == 'l') {
++it;
t = it != end ? *it : 0;
convert_arg<long long>(arg, t);
} else {
convert_arg<long>(arg, t);
}
break;
case 'j':
convert_arg<intmax_t>(arg, t);
break;
case 'z':
convert_arg<size_t>(arg, t);
break;
case 't':
convert_arg<std::ptrdiff_t>(arg, t);
break;
case 'L':
// printf produces garbage when 'L' is omitted for long double, no
// need to do the same.
break;
default:
--it;
convert_arg<void>(arg, c);
}
// Parse type.
if (it == end) FMT_THROW(format_error("invalid format string"));
specs.type = static_cast<char>(*it++);
if (arg.is_integral()) {
// Normalize type.
switch (specs.type) {
case 'i':
case 'u':
specs.type = 'd';
break;
case 'c':
visit_format_arg(detail::char_converter<basic_printf_context>(arg),
arg);
break;
}
}
start = it;
// Format argument.
out = visit_format_arg(ArgFormatter(out, specs, *this), arg);
}
return std::copy(start, it, out);
}
template <typename Char>
using basic_printf_context_t =
basic_printf_context<detail::buffer_appender<Char>, Char>;
using printf_context = basic_printf_context_t<char>;
using wprintf_context = basic_printf_context_t<wchar_t>;
using printf_args = basic_format_args<printf_context>;
using wprintf_args = basic_format_args<wprintf_context>;
/**
\rst
Constructs an `~fmt::format_arg_store` object that contains references to
arguments and can be implicitly converted to `~fmt::printf_args`.
\endrst
*/
template <typename... Args>
inline format_arg_store<printf_context, Args...> make_printf_args(
const Args&... args) {
return {args...};
}
/**
\rst
Constructs an `~fmt::format_arg_store` object that contains references to
arguments and can be implicitly converted to `~fmt::wprintf_args`.
\endrst
*/
template <typename... Args>
inline format_arg_store<wprintf_context, Args...> make_wprintf_args(
const Args&... args) {
return {args...};
}
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vsprintf(
const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
vprintf(buffer, to_string_view(format), args);
return to_string(buffer);
}
/**
\rst
Formats arguments and returns the result as a string.
**Example**::
std::string message = fmt::sprintf("The answer is %d", 42);
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline std::basic_string<Char> sprintf(const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
return vsprintf(to_string_view(format), make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
inline int vfprintf(
std::FILE* f, const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
vprintf(buffer, to_string_view(format), args);
size_t size = buffer.size();
return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
? -1
: static_cast<int>(size);
}
/**
\rst
Prints formatted data to the file *f*.
**Example**::
fmt::fprintf(stderr, "Don't %s!", "panic");
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline int fprintf(std::FILE* f, const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
return vfprintf(f, to_string_view(format),
make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
inline int vprintf(
const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
return vfprintf(stdout, to_string_view(format), args);
}
/**
\rst
Prints formatted data to ``stdout``.
**Example**::
fmt::printf("Elapsed time: %.2f seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
inline int printf(const S& format_str, const Args&... args) {
using context = basic_printf_context_t<char_t<S>>;
return vprintf(to_string_view(format_str),
make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
inline int vfprintf(
std::basic_ostream<Char>& os, const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
vprintf(buffer, to_string_view(format), args);
detail::write_buffer(os, buffer);
return static_cast<int>(buffer.size());
}
/** Formats arguments and writes the output to the range. */
template <typename ArgFormatter, typename Char,
typename Context =
basic_printf_context<typename ArgFormatter::iterator, Char>>
typename ArgFormatter::iterator vprintf(
detail::buffer<Char>& out, basic_string_view<Char> format_str,
basic_format_args<type_identity_t<Context>> args) {
typename ArgFormatter::iterator iter(out);
Context(iter, format_str, args).template format<ArgFormatter>();
return iter;
}
/**
\rst
Prints formatted data to the stream *os*.
**Example**::
fmt::fprintf(cerr, "Don't %s!", "panic");
\endrst
*/
template <typename S, typename... Args, typename Char = char_t<S>>
inline int fprintf(std::basic_ostream<Char>& os, const S& format_str,
const Args&... args) {
using context = basic_printf_context_t<Char>;
return vfprintf(os, to_string_view(format_str),
make_format_args<context>(args...));
}
FMT_END_NAMESPACE
#endif // FMT_PRINTF_H_

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// Formatting library for C++ - experimental range support
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
//
// Copyright (c) 2018 - present, Remotion (Igor Schulz)
// All Rights Reserved
// {fmt} support for ranges, containers and types tuple interface.
#ifndef FMT_RANGES_H_
#define FMT_RANGES_H_
#include <initializer_list>
#include <type_traits>
#include "format.h"
// output only up to N items from the range.
#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT
# define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256
#endif
FMT_BEGIN_NAMESPACE
template <typename Char> struct formatting_base {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
};
template <typename Char, typename Enable = void>
struct formatting_range : formatting_base<Char> {
static FMT_CONSTEXPR_DECL const size_t range_length_limit =
FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the
// range.
Char prefix;
Char delimiter;
Char postfix;
formatting_range() : prefix('{'), delimiter(','), postfix('}') {}
static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
};
template <typename Char, typename Enable = void>
struct formatting_tuple : formatting_base<Char> {
Char prefix;
Char delimiter;
Char postfix;
formatting_tuple() : prefix('('), delimiter(','), postfix(')') {}
static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
};
namespace detail {
template <typename RangeT, typename OutputIterator>
OutputIterator copy(const RangeT& range, OutputIterator out) {
for (auto it = range.begin(), end = range.end(); it != end; ++it)
*out++ = *it;
return out;
}
template <typename OutputIterator>
OutputIterator copy(const char* str, OutputIterator out) {
while (*str) *out++ = *str++;
return out;
}
template <typename OutputIterator>
OutputIterator copy(char ch, OutputIterator out) {
*out++ = ch;
return out;
}
/// Return true value if T has std::string interface, like std::string_view.
template <typename T> class is_like_std_string {
template <typename U>
static auto check(U* p)
-> decltype((void)p->find('a'), p->length(), (void)p->data(), int());
template <typename> static void check(...);
public:
static FMT_CONSTEXPR_DECL const bool value =
is_string<T>::value || !std::is_void<decltype(check<T>(nullptr))>::value;
};
template <typename Char>
struct is_like_std_string<fmt::basic_string_view<Char>> : std::true_type {};
template <typename... Ts> struct conditional_helper {};
template <typename T, typename _ = void> struct is_range_ : std::false_type {};
#if !FMT_MSC_VER || FMT_MSC_VER > 1800
template <typename T>
struct is_range_<
T, conditional_t<false,
conditional_helper<decltype(std::declval<T>().begin()),
decltype(std::declval<T>().end())>,
void>> : std::true_type {};
#endif
/// tuple_size and tuple_element check.
template <typename T> class is_tuple_like_ {
template <typename U>
static auto check(U* p) -> decltype(std::tuple_size<U>::value, int());
template <typename> static void check(...);
public:
static FMT_CONSTEXPR_DECL const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
};
// Check for integer_sequence
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
template <typename T, T... N>
using integer_sequence = std::integer_sequence<T, N...>;
template <size_t... N> using index_sequence = std::index_sequence<N...>;
template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
#else
template <typename T, T... N> struct integer_sequence {
using value_type = T;
static FMT_CONSTEXPR size_t size() { return sizeof...(N); }
};
template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
template <typename T, size_t N, T... Ns>
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
template <typename T, T... Ns>
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
template <size_t N>
using make_index_sequence = make_integer_sequence<size_t, N>;
#endif
template <class Tuple, class F, size_t... Is>
void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) FMT_NOEXCEPT {
using std::get;
// using free function get<I>(T) now.
const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
(void)_; // blocks warnings
}
template <class T>
FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes(
T const&) {
return {};
}
template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) {
const auto indexes = get_indexes(tup);
for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
}
template <typename Range>
using value_type = remove_cvref_t<decltype(*std::declval<Range>().begin())>;
template <typename Arg, FMT_ENABLE_IF(!is_like_std_string<
typename std::decay<Arg>::type>::value)>
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&) {
return add_space ? " {}" : "{}";
}
template <typename Arg, FMT_ENABLE_IF(is_like_std_string<
typename std::decay<Arg>::type>::value)>
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&) {
return add_space ? " \"{}\"" : "\"{}\"";
}
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char*) {
return add_space ? " \"{}\"" : "\"{}\"";
}
FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t*) {
return add_space ? L" \"{}\"" : L"\"{}\"";
}
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char) {
return add_space ? " '{}'" : "'{}'";
}
FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) {
return add_space ? L" '{}'" : L"'{}'";
}
} // namespace detail
template <typename T> struct is_tuple_like {
static FMT_CONSTEXPR_DECL const bool value =
detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value;
};
template <typename TupleT, typename Char>
struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
private:
// C++11 generic lambda for format()
template <typename FormatContext> struct format_each {
template <typename T> void operator()(const T& v) {
if (i > 0) {
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), v),
v);
++i;
}
formatting_tuple<Char>& formatting;
size_t& i;
typename std::add_lvalue_reference<decltype(
std::declval<FormatContext>().out())>::type out;
};
public:
formatting_tuple<Char> formatting;
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return formatting.parse(ctx);
}
template <typename FormatContext = format_context>
auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) {
auto out = ctx.out();
size_t i = 0;
detail::copy(formatting.prefix, out);
detail::for_each(values, format_each<FormatContext>{formatting, i, out});
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
detail::copy(formatting.postfix, out);
return ctx.out();
}
};
template <typename T, typename Char> struct is_range {
static FMT_CONSTEXPR_DECL const bool value =
detail::is_range_<T>::value && !detail::is_like_std_string<T>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value &&
!std::is_constructible<detail::std_string_view<Char>, T>::value;
};
template <typename T, typename Char>
struct formatter<
T, Char,
enable_if_t<fmt::is_range<T, Char>::value
// Workaround a bug in MSVC 2017 and earlier.
#if !FMT_MSC_VER || FMT_MSC_VER >= 1927
&&
(has_formatter<detail::value_type<T>, format_context>::value ||
detail::has_fallback_formatter<detail::value_type<T>,
format_context>::value)
#endif
>> {
formatting_range<Char> formatting;
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return formatting.parse(ctx);
}
template <typename FormatContext>
typename FormatContext::iterator format(const T& values, FormatContext& ctx) {
auto out = detail::copy(formatting.prefix, ctx.out());
size_t i = 0;
auto it = values.begin();
auto end = values.end();
for (; it != end; ++it) {
if (i > 0) {
if (formatting.add_prepostfix_space) *out++ = ' ';
out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), *it),
*it);
if (++i > formatting.range_length_limit) {
out = format_to(out, " ... <other elements>");
break;
}
}
if (formatting.add_prepostfix_space) *out++ = ' ';
return detail::copy(formatting.postfix, out);
}
};
template <typename Char, typename... T> struct tuple_arg_join : detail::view {
const std::tuple<T...>& tuple;
basic_string_view<Char> sep;
tuple_arg_join(const std::tuple<T...>& t, basic_string_view<Char> s)
: tuple{t}, sep{s} {}
};
template <typename Char, typename... T>
struct formatter<tuple_arg_join<Char, T...>, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx) {
return format(value, ctx, detail::make_index_sequence<sizeof...(T)>{});
}
private:
template <typename FormatContext, size_t... N>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
detail::index_sequence<N...>) {
return format_args(value, ctx, std::get<N>(value.tuple)...);
}
template <typename FormatContext>
typename FormatContext::iterator format_args(
const tuple_arg_join<Char, T...>&, FormatContext& ctx) {
// NOTE: for compilers that support C++17, this empty function instantiation
// can be replaced with a constexpr branch in the variadic overload.
return ctx.out();
}
template <typename FormatContext, typename Arg, typename... Args>
typename FormatContext::iterator format_args(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
const Arg& arg, const Args&... args) {
using base = formatter<typename std::decay<Arg>::type, Char>;
auto out = ctx.out();
out = base{}.format(arg, ctx);
if (sizeof...(Args) > 0) {
out = std::copy(value.sep.begin(), value.sep.end(), out);
ctx.advance_to(out);
return format_args(value, ctx, args...);
}
return out;
}
};
/**
\rst
Returns an object that formats `tuple` with elements separated by `sep`.
**Example**::
std::tuple<int, char> t = {1, 'a'};
fmt::print("{}", fmt::join(t, ", "));
// Output: "1, a"
\endrst
*/
template <typename... T>
FMT_CONSTEXPR tuple_arg_join<char, T...> join(const std::tuple<T...>& tuple,
string_view sep) {
return {tuple, sep};
}
template <typename... T>
FMT_CONSTEXPR tuple_arg_join<wchar_t, T...> join(const std::tuple<T...>& tuple,
wstring_view sep) {
return {tuple, sep};
}
/**
\rst
Returns an object that formats `initializer_list` with elements separated by
`sep`.
**Example**::
fmt::print("{}", fmt::join({1, 2, 3}, ", "));
// Output: "1, 2, 3"
\endrst
*/
template <typename T>
arg_join<const T*, const T*, char> join(std::initializer_list<T> list,
string_view sep) {
return join(std::begin(list), std::end(list), sep);
}
template <typename T>
arg_join<const T*, const T*, wchar_t> join(std::initializer_list<T> list,
wstring_view sep) {
return join(std::begin(list), std::end(list), sep);
}
FMT_END_NAMESPACE
#endif // FMT_RANGES_H_

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//
// Copyright(c) 2016 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
//
// include bundled or external copy of fmtlib's chrono support
//
#if !defined(SPDLOG_FMT_EXTERNAL)
#ifdef SPDLOG_HEADER_ONLY
#ifndef FMT_HEADER_ONLY
#define FMT_HEADER_ONLY
#endif
#endif
#include <spdlog/fmt/bundled/chrono.h>
#else
#include <fmt/chrono.h>
#endif

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//
// Copyright(c) 2016-2018 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
//
// Include a bundled header-only copy of fmtlib or an external one.
// By default spdlog include its own copy.
//
#if !defined(SPDLOG_FMT_EXTERNAL)
#if !defined(SPDLOG_COMPILED_LIB) && !defined(FMT_HEADER_ONLY)
#define FMT_HEADER_ONLY
#endif
#ifndef FMT_USE_WINDOWS_H
#define FMT_USE_WINDOWS_H 0
#endif
// enable the 'n' flag in for backward compatibility with fmt 6.x
#define FMT_DEPRECATED_N_SPECIFIER
#include <spdlog/fmt/bundled/core.h>
#include <spdlog/fmt/bundled/format.h>
#else // SPDLOG_FMT_EXTERNAL is defined - use external fmtlib
#include <fmt/core.h>
#include <fmt/format.h>
#endif

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//
// Copyright(c) 2016 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
//
// include bundled or external copy of fmtlib's ostream support
//
#if !defined(SPDLOG_FMT_EXTERNAL)
#ifdef SPDLOG_HEADER_ONLY
#ifndef FMT_HEADER_ONLY
#define FMT_HEADER_ONLY
#endif
#endif
#include <spdlog/fmt/bundled/ostream.h>
#else
#include <fmt/ostream.h>
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/fmt/fmt.h>
#include <spdlog/details/log_msg.h>
namespace spdlog {
class formatter
{
public:
virtual ~formatter() = default;
virtual void format(const details::log_msg &msg, memory_buf_t &dest) = 0;
virtual std::unique_ptr<formatter> clone() const = 0;
};
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
namespace spdlog {
class logger;
class formatter;
namespace sinks {
class sink;
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/logger.h>
#endif
#include <spdlog/sinks/sink.h>
#include <spdlog/details/backtracer.h>
#include <spdlog/pattern_formatter.h>
#include <cstdio>
namespace spdlog {
// public methods
SPDLOG_INLINE logger::logger(const logger &other)
: name_(other.name_)
, sinks_(other.sinks_)
, level_(other.level_.load(std::memory_order_relaxed))
, flush_level_(other.flush_level_.load(std::memory_order_relaxed))
, custom_err_handler_(other.custom_err_handler_)
, tracer_(other.tracer_)
{}
SPDLOG_INLINE logger::logger(logger &&other) SPDLOG_NOEXCEPT : name_(std::move(other.name_)),
sinks_(std::move(other.sinks_)),
level_(other.level_.load(std::memory_order_relaxed)),
flush_level_(other.flush_level_.load(std::memory_order_relaxed)),
custom_err_handler_(std::move(other.custom_err_handler_)),
tracer_(std::move(other.tracer_))
{}
SPDLOG_INLINE logger &logger::operator=(logger other) SPDLOG_NOEXCEPT
{
this->swap(other);
return *this;
}
SPDLOG_INLINE void logger::swap(spdlog::logger &other) SPDLOG_NOEXCEPT
{
name_.swap(other.name_);
sinks_.swap(other.sinks_);
// swap level_
auto other_level = other.level_.load();
auto my_level = level_.exchange(other_level);
other.level_.store(my_level);
// swap flush level_
other_level = other.flush_level_.load();
my_level = flush_level_.exchange(other_level);
other.flush_level_.store(my_level);
custom_err_handler_.swap(other.custom_err_handler_);
std::swap(tracer_, other.tracer_);
}
SPDLOG_INLINE void swap(logger &a, logger &b)
{
a.swap(b);
}
SPDLOG_INLINE void logger::set_level(level::level_enum log_level)
{
level_.store(log_level);
}
SPDLOG_INLINE level::level_enum logger::level() const
{
return static_cast<level::level_enum>(level_.load(std::memory_order_relaxed));
}
SPDLOG_INLINE const std::string &logger::name() const
{
return name_;
}
// set formatting for the sinks in this logger.
// each sink will get a separate instance of the formatter object.
SPDLOG_INLINE void logger::set_formatter(std::unique_ptr<formatter> f)
{
for (auto it = sinks_.begin(); it != sinks_.end(); ++it)
{
if (std::next(it) == sinks_.end())
{
// last element - we can be move it.
(*it)->set_formatter(std::move(f));
break; // to prevent clang-tidy warning
}
else
{
(*it)->set_formatter(f->clone());
}
}
}
SPDLOG_INLINE void logger::set_pattern(std::string pattern, pattern_time_type time_type)
{
auto new_formatter = details::make_unique<pattern_formatter>(std::move(pattern), time_type);
set_formatter(std::move(new_formatter));
}
// create new backtrace sink and move to it all our child sinks
SPDLOG_INLINE void logger::enable_backtrace(size_t n_messages)
{
tracer_.enable(n_messages);
}
// restore orig sinks and level and delete the backtrace sink
SPDLOG_INLINE void logger::disable_backtrace()
{
tracer_.disable();
}
SPDLOG_INLINE void logger::dump_backtrace()
{
dump_backtrace_();
}
// flush functions
SPDLOG_INLINE void logger::flush()
{
flush_();
}
SPDLOG_INLINE void logger::flush_on(level::level_enum log_level)
{
flush_level_.store(log_level);
}
SPDLOG_INLINE level::level_enum logger::flush_level() const
{
return static_cast<level::level_enum>(flush_level_.load(std::memory_order_relaxed));
}
// sinks
SPDLOG_INLINE const std::vector<sink_ptr> &logger::sinks() const
{
return sinks_;
}
SPDLOG_INLINE std::vector<sink_ptr> &logger::sinks()
{
return sinks_;
}
// error handler
SPDLOG_INLINE void logger::set_error_handler(err_handler handler)
{
custom_err_handler_ = std::move(handler);
}
// create new logger with same sinks and configuration.
SPDLOG_INLINE std::shared_ptr<logger> logger::clone(std::string logger_name)
{
auto cloned = std::make_shared<logger>(*this);
cloned->name_ = std::move(logger_name);
return cloned;
}
// protected methods
SPDLOG_INLINE void logger::log_it_(const spdlog::details::log_msg &log_msg, bool log_enabled, bool traceback_enabled)
{
if (log_enabled)
{
sink_it_(log_msg);
}
if (traceback_enabled)
{
tracer_.push_back(log_msg);
}
}
SPDLOG_INLINE void logger::sink_it_(const details::log_msg &msg)
{
for (auto &sink : sinks_)
{
if (sink->should_log(msg.level))
{
SPDLOG_TRY
{
sink->log(msg);
}
SPDLOG_LOGGER_CATCH()
}
}
if (should_flush_(msg))
{
flush_();
}
}
SPDLOG_INLINE void logger::flush_()
{
for (auto &sink : sinks_)
{
SPDLOG_TRY
{
sink->flush();
}
SPDLOG_LOGGER_CATCH()
}
}
SPDLOG_INLINE void logger::dump_backtrace_()
{
using details::log_msg;
if (tracer_.enabled())
{
sink_it_(log_msg{name(), level::info, "****************** Backtrace Start ******************"});
tracer_.foreach_pop([this](const log_msg &msg) { this->sink_it_(msg); });
sink_it_(log_msg{name(), level::info, "****************** Backtrace End ********************"});
}
}
SPDLOG_INLINE bool logger::should_flush_(const details::log_msg &msg)
{
auto flush_level = flush_level_.load(std::memory_order_relaxed);
return (msg.level >= flush_level) && (msg.level != level::off);
}
SPDLOG_INLINE void logger::err_handler_(const std::string &msg)
{
if (custom_err_handler_)
{
custom_err_handler_(msg);
}
else
{
using std::chrono::system_clock;
static std::mutex mutex;
static std::chrono::system_clock::time_point last_report_time;
static size_t err_counter = 0;
std::lock_guard<std::mutex> lk{mutex};
auto now = system_clock::now();
err_counter++;
if (now - last_report_time < std::chrono::seconds(1))
{
return;
}
last_report_time = now;
auto tm_time = details::os::localtime(system_clock::to_time_t(now));
char date_buf[64];
std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
#if defined(USING_R) && defined(R_R_H) // if in R environment
REprintf("[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
#else
std::fprintf(stderr, "[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
#endif
}
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Thread safe logger (except for set_error_handler())
// Has name, log level, vector of std::shared sink pointers and formatter
// Upon each log write the logger:
// 1. Checks if its log level is enough to log the message and if yes:
// 2. Call the underlying sinks to do the job.
// 3. Each sink use its own private copy of a formatter to format the message
// and send to its destination.
//
// The use of private formatter per sink provides the opportunity to cache some
// formatted data, and support for different format per sink.
#include <spdlog/common.h>
#include <spdlog/details/log_msg.h>
#include <spdlog/details/backtracer.h>
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
#include <spdlog/details/os.h>
#endif
#include <vector>
#ifndef SPDLOG_NO_EXCEPTIONS
#define SPDLOG_LOGGER_CATCH() \
catch (const std::exception &ex) \
{ \
err_handler_(ex.what()); \
} \
catch (...) \
{ \
err_handler_("Unknown exception in logger"); \
}
#else
#define SPDLOG_LOGGER_CATCH()
#endif
namespace spdlog {
class SPDLOG_API logger
{
public:
// Empty logger
explicit logger(std::string name)
: name_(std::move(name))
, sinks_()
{}
// Logger with range on sinks
template<typename It>
logger(std::string name, It begin, It end)
: name_(std::move(name))
, sinks_(begin, end)
{}
// Logger with single sink
logger(std::string name, sink_ptr single_sink)
: logger(std::move(name), {std::move(single_sink)})
{}
// Logger with sinks init list
logger(std::string name, sinks_init_list sinks)
: logger(std::move(name), sinks.begin(), sinks.end())
{}
virtual ~logger() = default;
logger(const logger &other);
logger(logger &&other) SPDLOG_NOEXCEPT;
logger &operator=(logger other) SPDLOG_NOEXCEPT;
void swap(spdlog::logger &other) SPDLOG_NOEXCEPT;
// FormatString is a type derived from fmt::compile_string
template<typename FormatString, typename std::enable_if<fmt::is_compile_string<FormatString>::value, int>::type = 0, typename... Args>
void log(source_loc loc, level::level_enum lvl, const FormatString &fmt, Args&&...args)
{
log_(loc, lvl, fmt, std::forward<Args>(args)...);
}
// FormatString is NOT a type derived from fmt::compile_string but is a string_view_t or can be implicitly converted to one
template<typename... Args>
void log(source_loc loc, level::level_enum lvl, string_view_t fmt, Args&&...args)
{
log_(loc, lvl, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void log(level::level_enum lvl, const FormatString &fmt, Args&&...args)
{
log(source_loc{}, lvl, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void trace(const FormatString &fmt, Args&&...args)
{
log(level::trace, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void debug(const FormatString &fmt, Args&&...args)
{
log(level::debug, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void info(const FormatString &fmt, Args&&...args)
{
log(level::info, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void warn(const FormatString &fmt, Args&&...args)
{
log(level::warn, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void error(const FormatString &fmt, Args&&...args)
{
log(level::err, fmt, std::forward<Args>(args)...);
}
template<typename FormatString, typename... Args>
void critical(const FormatString &fmt, Args&&...args)
{
log(level::critical, fmt, std::forward<Args>(args)...);
}
template<typename T>
void log(level::level_enum lvl, const T &msg)
{
log(source_loc{}, lvl, msg);
}
// T can be statically converted to string_view and isn't a fmt::compile_string
template<class T, typename std::enable_if<
std::is_convertible<const T &, spdlog::string_view_t>::value && !fmt::is_compile_string<T>::value, int>::type = 0>
void log(source_loc loc, level::level_enum lvl, const T &msg)
{
log(loc, lvl, string_view_t{msg});
}
void log(log_clock::time_point log_time, source_loc loc, level::level_enum lvl, string_view_t msg)
{
bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled();
if (!log_enabled && !traceback_enabled)
{
return;
}
details::log_msg log_msg(log_time, loc, name_, lvl, msg);
log_it_(log_msg, log_enabled, traceback_enabled);
}
void log(source_loc loc, level::level_enum lvl, string_view_t msg)
{
bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled();
if (!log_enabled && !traceback_enabled)
{
return;
}
details::log_msg log_msg(loc, name_, lvl, msg);
log_it_(log_msg, log_enabled, traceback_enabled);
}
void log(level::level_enum lvl, string_view_t msg)
{
log(source_loc{}, lvl, msg);
}
// T cannot be statically converted to string_view or wstring_view
template<class T, typename std::enable_if<!std::is_convertible<const T &, spdlog::string_view_t>::value &&
!is_convertible_to_wstring_view<const T &>::value,
int>::type = 0>
void log(source_loc loc, level::level_enum lvl, const T &msg)
{
log(loc, lvl, "{}", msg);
}
template<typename T>
void trace(const T &msg)
{
log(level::trace, msg);
}
template<typename T>
void debug(const T &msg)
{
log(level::debug, msg);
}
template<typename T>
void info(const T &msg)
{
log(level::info, msg);
}
template<typename T>
void warn(const T &msg)
{
log(level::warn, msg);
}
template<typename T>
void error(const T &msg)
{
log(level::err, msg);
}
template<typename T>
void critical(const T &msg)
{
log(level::critical, msg);
}
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
#ifndef _WIN32
#error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
#else
template<typename... Args>
void log(source_loc loc, level::level_enum lvl, wstring_view_t fmt, Args&&...args)
{
bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled();
if (!log_enabled && !traceback_enabled)
{
return;
}
SPDLOG_TRY
{
// format to wmemory_buffer and convert to utf8
fmt::wmemory_buffer wbuf;
fmt::format_to(wbuf, fmt, std::forward<Args>(args)...);
memory_buf_t buf;
details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf);
details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
log_it_(log_msg, log_enabled, traceback_enabled);
}
SPDLOG_LOGGER_CATCH()
}
// T can be statically converted to wstring_view
template<class T, typename std::enable_if<is_convertible_to_wstring_view<const T &>::value, int>::type = 0>
void log(source_loc loc, level::level_enum lvl, const T &msg)
{
bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled();
if (!log_enabled && !traceback_enabled)
{
return;
}
SPDLOG_TRY
{
memory_buf_t buf;
details::os::wstr_to_utf8buf(msg, buf);
details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
log_it_(log_msg, log_enabled, traceback_enabled);
}
SPDLOG_LOGGER_CATCH()
}
#endif // _WIN32
#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
// return true logging is enabled for the given level.
bool should_log(level::level_enum msg_level) const
{
return msg_level >= level_.load(std::memory_order_relaxed);
}
// return true if backtrace logging is enabled.
bool should_backtrace() const
{
return tracer_.enabled();
}
void set_level(level::level_enum log_level);
level::level_enum level() const;
const std::string &name() const;
// set formatting for the sinks in this logger.
// each sink will get a separate instance of the formatter object.
void set_formatter(std::unique_ptr<formatter> f);
void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local);
// backtrace support.
// efficiently store all debug/trace messages in a circular buffer until needed for debugging.
void enable_backtrace(size_t n_messages);
void disable_backtrace();
void dump_backtrace();
// flush functions
void flush();
void flush_on(level::level_enum log_level);
level::level_enum flush_level() const;
// sinks
const std::vector<sink_ptr> &sinks() const;
std::vector<sink_ptr> &sinks();
// error handler
void set_error_handler(err_handler);
// create new logger with same sinks and configuration.
virtual std::shared_ptr<logger> clone(std::string logger_name);
protected:
std::string name_;
std::vector<sink_ptr> sinks_;
spdlog::level_t level_{level::info};
spdlog::level_t flush_level_{level::off};
err_handler custom_err_handler_{nullptr};
details::backtracer tracer_;
// common implementation for after templated public api has been resolved
template<typename FormatString, typename... Args>
void log_(source_loc loc, level::level_enum lvl, const FormatString &fmt, Args&&...args)
{
bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled();
if (!log_enabled && !traceback_enabled)
{
return;
}
SPDLOG_TRY
{
memory_buf_t buf;
fmt::format_to(buf, fmt, std::forward<Args>(args)...);
details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
log_it_(log_msg, log_enabled, traceback_enabled);
}
SPDLOG_LOGGER_CATCH()
}
// log the given message (if the given log level is high enough),
// and save backtrace (if backtrace is enabled).
void log_it_(const details::log_msg &log_msg, bool log_enabled, bool traceback_enabled);
virtual void sink_it_(const details::log_msg &msg);
virtual void flush_();
void dump_backtrace_();
bool should_flush_(const details::log_msg &msg);
// handle errors during logging.
// default handler prints the error to stderr at max rate of 1 message/sec.
void err_handler_(const std::string &msg);
};
void swap(logger &a, logger &b);
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "logger-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <spdlog/details/log_msg.h>
#include <spdlog/details/os.h>
#include <spdlog/formatter.h>
#include <chrono>
#include <ctime>
#include <memory>
#include <string>
#include <vector>
#include <unordered_map>
namespace spdlog {
namespace details {
// padding information.
struct padding_info
{
enum class pad_side
{
left,
right,
center
};
padding_info() = default;
padding_info(size_t width, padding_info::pad_side side, bool truncate)
: width_(width)
, side_(side)
, truncate_(truncate)
, enabled_(true)
{}
bool enabled() const
{
return enabled_;
}
size_t width_ = 0;
pad_side side_ = pad_side::left;
bool truncate_ = false;
bool enabled_ = false;
};
class SPDLOG_API flag_formatter
{
public:
explicit flag_formatter(padding_info padinfo)
: padinfo_(padinfo)
{}
flag_formatter() = default;
virtual ~flag_formatter() = default;
virtual void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) = 0;
protected:
padding_info padinfo_;
};
} // namespace details
class SPDLOG_API custom_flag_formatter : public details::flag_formatter
{
public:
virtual std::unique_ptr<custom_flag_formatter> clone() const = 0;
void set_padding_info(details::padding_info padding)
{
flag_formatter::padinfo_ = padding;
}
};
class SPDLOG_API pattern_formatter final : public formatter
{
public:
using custom_flags = std::unordered_map<char, std::unique_ptr<custom_flag_formatter>>;
explicit pattern_formatter(std::string pattern, pattern_time_type time_type = pattern_time_type::local,
std::string eol = spdlog::details::os::default_eol, custom_flags custom_user_flags = custom_flags());
// use default pattern is not given
explicit pattern_formatter(pattern_time_type time_type = pattern_time_type::local, std::string eol = spdlog::details::os::default_eol);
pattern_formatter(const pattern_formatter &other) = delete;
pattern_formatter &operator=(const pattern_formatter &other) = delete;
std::unique_ptr<formatter> clone() const override;
void format(const details::log_msg &msg, memory_buf_t &dest) override;
template<typename T, typename... Args>
pattern_formatter &add_flag(char flag, Args&&...args)
{
custom_handlers_[flag] = details::make_unique<T>(std::forward<Args>(args)...);
return *this;
}
void set_pattern(std::string pattern);
private:
std::string pattern_;
std::string eol_;
pattern_time_type pattern_time_type_;
std::tm cached_tm_;
std::chrono::seconds last_log_secs_;
std::vector<std::unique_ptr<details::flag_formatter>> formatters_;
custom_flags custom_handlers_;
std::tm get_time_(const details::log_msg &msg);
template<typename Padder>
void handle_flag_(char flag, details::padding_info padding);
// Extract given pad spec (e.g. %8X)
// Advance the given it pass the end of the padding spec found (if any)
// Return padding.
static details::padding_info handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end);
void compile_pattern_(const std::string &pattern);
};
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "pattern_formatter-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifdef __ANDROID__
#include <spdlog/details/fmt_helper.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/details/os.h>
#include <spdlog/sinks/base_sink.h>
#include <spdlog/details/synchronous_factory.h>
#include <android/log.h>
#include <chrono>
#include <mutex>
#include <string>
#include <thread>
#if !defined(SPDLOG_ANDROID_RETRIES)
#define SPDLOG_ANDROID_RETRIES 2
#endif
namespace spdlog {
namespace sinks {
/*
* Android sink (logging using __android_log_write)
*/
template<typename Mutex>
class android_sink final : public base_sink<Mutex>
{
public:
explicit android_sink(std::string tag = "spdlog", bool use_raw_msg = false)
: tag_(std::move(tag))
, use_raw_msg_(use_raw_msg)
{}
protected:
void sink_it_(const details::log_msg &msg) override
{
const android_LogPriority priority = convert_to_android_(msg.level);
memory_buf_t formatted;
if (use_raw_msg_)
{
details::fmt_helper::append_string_view(msg.payload, formatted);
}
else
{
base_sink<Mutex>::formatter_->format(msg, formatted);
}
formatted.push_back('\0');
const char *msg_output = formatted.data();
// See system/core/liblog/logger_write.c for explanation of return value
int ret = __android_log_write(priority, tag_.c_str(), msg_output);
int retry_count = 0;
while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
{
details::os::sleep_for_millis(5);
ret = __android_log_write(priority, tag_.c_str(), msg_output);
retry_count++;
}
if (ret < 0)
{
throw_spdlog_ex("__android_log_write() failed", ret);
}
}
void flush_() override {}
private:
static android_LogPriority convert_to_android_(spdlog::level::level_enum level)
{
switch (level)
{
case spdlog::level::trace:
return ANDROID_LOG_VERBOSE;
case spdlog::level::debug:
return ANDROID_LOG_DEBUG;
case spdlog::level::info:
return ANDROID_LOG_INFO;
case spdlog::level::warn:
return ANDROID_LOG_WARN;
case spdlog::level::err:
return ANDROID_LOG_ERROR;
case spdlog::level::critical:
return ANDROID_LOG_FATAL;
default:
return ANDROID_LOG_DEFAULT;
}
}
std::string tag_;
bool use_raw_msg_;
};
using android_sink_mt = android_sink<std::mutex>;
using android_sink_st = android_sink<details::null_mutex>;
} // namespace sinks
// Create and register android syslog logger
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> android_logger_mt(const std::string &logger_name, const std::string &tag = "spdlog")
{
return Factory::template create<sinks::android_sink_mt>(logger_name, tag);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> android_logger_st(const std::string &logger_name, const std::string &tag = "spdlog")
{
return Factory::template create<sinks::android_sink_st>(logger_name, tag);
}
} // namespace spdlog
#endif // __ANDROID__

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/sinks/ansicolor_sink.h>
#endif
#include <spdlog/pattern_formatter.h>
#include <spdlog/details/os.h>
namespace spdlog {
namespace sinks {
template<typename ConsoleMutex>
SPDLOG_INLINE ansicolor_sink<ConsoleMutex>::ansicolor_sink(FILE *target_file, color_mode mode)
: target_file_(target_file)
, mutex_(ConsoleMutex::mutex())
, formatter_(details::make_unique<spdlog::pattern_formatter>())
{
set_color_mode(mode);
colors_[level::trace] = to_string_(white);
colors_[level::debug] = to_string_(cyan);
colors_[level::info] = to_string_(green);
colors_[level::warn] = to_string_(yellow_bold);
colors_[level::err] = to_string_(red_bold);
colors_[level::critical] = to_string_(bold_on_red);
colors_[level::off] = to_string_(reset);
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_color(level::level_enum color_level, string_view_t color)
{
std::lock_guard<mutex_t> lock(mutex_);
colors_[color_level] = to_string_(color);
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::log(const details::log_msg &msg)
{
// Wrap the originally formatted message in color codes.
// If color is not supported in the terminal, log as is instead.
std::lock_guard<mutex_t> lock(mutex_);
msg.color_range_start = 0;
msg.color_range_end = 0;
memory_buf_t formatted;
formatter_->format(msg, formatted);
if (should_do_colors_ && msg.color_range_end > msg.color_range_start)
{
// before color range
print_range_(formatted, 0, msg.color_range_start);
// in color range
print_ccode_(colors_[msg.level]);
print_range_(formatted, msg.color_range_start, msg.color_range_end);
print_ccode_(reset);
// after color range
print_range_(formatted, msg.color_range_end, formatted.size());
}
else // no color
{
print_range_(formatted, 0, formatted.size());
}
fflush(target_file_);
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::flush()
{
std::lock_guard<mutex_t> lock(mutex_);
fflush(target_file_);
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_pattern(const std::string &pattern)
{
std::lock_guard<mutex_t> lock(mutex_);
formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter)
{
std::lock_guard<mutex_t> lock(mutex_);
formatter_ = std::move(sink_formatter);
}
template<typename ConsoleMutex>
SPDLOG_INLINE bool ansicolor_sink<ConsoleMutex>::should_color()
{
return should_do_colors_;
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_color_mode(color_mode mode)
{
switch (mode)
{
case color_mode::always:
should_do_colors_ = true;
return;
case color_mode::automatic:
should_do_colors_ = details::os::in_terminal(target_file_) && details::os::is_color_terminal();
return;
case color_mode::never:
should_do_colors_ = false;
return;
default:
should_do_colors_ = false;
}
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::print_ccode_(const string_view_t &color_code)
{
fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_);
}
template<typename ConsoleMutex>
SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::print_range_(const memory_buf_t &formatted, size_t start, size_t end)
{
fwrite(formatted.data() + start, sizeof(char), end - start, target_file_);
}
template<typename ConsoleMutex>
SPDLOG_INLINE std::string ansicolor_sink<ConsoleMutex>::to_string_(const string_view_t &sv)
{
return std::string(sv.data(), sv.size());
}
// ansicolor_stdout_sink
template<typename ConsoleMutex>
SPDLOG_INLINE ansicolor_stdout_sink<ConsoleMutex>::ansicolor_stdout_sink(color_mode mode)
: ansicolor_sink<ConsoleMutex>(stdout, mode)
{}
// ansicolor_stderr_sink
template<typename ConsoleMutex>
SPDLOG_INLINE ansicolor_stderr_sink<ConsoleMutex>::ansicolor_stderr_sink(color_mode mode)
: ansicolor_sink<ConsoleMutex>(stderr, mode)
{}
} // namespace sinks
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/console_globals.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/sinks/sink.h>
#include <memory>
#include <mutex>
#include <string>
#include <array>
namespace spdlog {
namespace sinks {
/**
* This sink prefixes the output with an ANSI escape sequence color code
* depending on the severity
* of the message.
* If no color terminal detected, omit the escape codes.
*/
template<typename ConsoleMutex>
class ansicolor_sink : public sink
{
public:
using mutex_t = typename ConsoleMutex::mutex_t;
ansicolor_sink(FILE *target_file, color_mode mode);
~ansicolor_sink() override = default;
ansicolor_sink(const ansicolor_sink &other) = delete;
ansicolor_sink(ansicolor_sink &&other) = delete;
ansicolor_sink &operator=(const ansicolor_sink &other) = delete;
ansicolor_sink &operator=(ansicolor_sink &&other) = delete;
void set_color(level::level_enum color_level, string_view_t color);
void set_color_mode(color_mode mode);
bool should_color();
void log(const details::log_msg &msg) override;
void flush() override;
void set_pattern(const std::string &pattern) final;
void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override;
// Formatting codes
const string_view_t reset = "\033[m";
const string_view_t bold = "\033[1m";
const string_view_t dark = "\033[2m";
const string_view_t underline = "\033[4m";
const string_view_t blink = "\033[5m";
const string_view_t reverse = "\033[7m";
const string_view_t concealed = "\033[8m";
const string_view_t clear_line = "\033[K";
// Foreground colors
const string_view_t black = "\033[30m";
const string_view_t red = "\033[31m";
const string_view_t green = "\033[32m";
const string_view_t yellow = "\033[33m";
const string_view_t blue = "\033[34m";
const string_view_t magenta = "\033[35m";
const string_view_t cyan = "\033[36m";
const string_view_t white = "\033[37m";
/// Background colors
const string_view_t on_black = "\033[40m";
const string_view_t on_red = "\033[41m";
const string_view_t on_green = "\033[42m";
const string_view_t on_yellow = "\033[43m";
const string_view_t on_blue = "\033[44m";
const string_view_t on_magenta = "\033[45m";
const string_view_t on_cyan = "\033[46m";
const string_view_t on_white = "\033[47m";
/// Bold colors
const string_view_t yellow_bold = "\033[33m\033[1m";
const string_view_t red_bold = "\033[31m\033[1m";
const string_view_t bold_on_red = "\033[1m\033[41m";
private:
FILE *target_file_;
mutex_t &mutex_;
bool should_do_colors_;
std::unique_ptr<spdlog::formatter> formatter_;
std::array<std::string, level::n_levels> colors_;
void print_ccode_(const string_view_t &color_code);
void print_range_(const memory_buf_t &formatted, size_t start, size_t end);
static std::string to_string_(const string_view_t &sv);
};
template<typename ConsoleMutex>
class ansicolor_stdout_sink : public ansicolor_sink<ConsoleMutex>
{
public:
explicit ansicolor_stdout_sink(color_mode mode = color_mode::automatic);
};
template<typename ConsoleMutex>
class ansicolor_stderr_sink : public ansicolor_sink<ConsoleMutex>
{
public:
explicit ansicolor_stderr_sink(color_mode mode = color_mode::automatic);
};
using ansicolor_stdout_sink_mt = ansicolor_stdout_sink<details::console_mutex>;
using ansicolor_stdout_sink_st = ansicolor_stdout_sink<details::console_nullmutex>;
using ansicolor_stderr_sink_mt = ansicolor_stderr_sink<details::console_mutex>;
using ansicolor_stderr_sink_st = ansicolor_stderr_sink<details::console_nullmutex>;
} // namespace sinks
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "ansicolor_sink-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/sinks/base_sink.h>
#endif
#include <spdlog/common.h>
#include <spdlog/pattern_formatter.h>
#include <memory>
template<typename Mutex>
SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink()
: formatter_{details::make_unique<spdlog::pattern_formatter>()}
{}
template<typename Mutex>
SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink(std::unique_ptr<spdlog::formatter> formatter)
: formatter_{std::move(formatter)}
{}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::log(const details::log_msg &msg)
{
std::lock_guard<Mutex> lock(mutex_);
sink_it_(msg);
}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::flush()
{
std::lock_guard<Mutex> lock(mutex_);
flush_();
}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern(const std::string &pattern)
{
std::lock_guard<Mutex> lock(mutex_);
set_pattern_(pattern);
}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter)
{
std::lock_guard<Mutex> lock(mutex_);
set_formatter_(std::move(sink_formatter));
}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern_(const std::string &pattern)
{
set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
}
template<typename Mutex>
void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter)
{
formatter_ = std::move(sink_formatter);
}

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
//
// base sink templated over a mutex (either dummy or real)
// concrete implementation should override the sink_it_() and flush_() methods.
// locking is taken care of in this class - no locking needed by the
// implementers..
//
#include <spdlog/common.h>
#include <spdlog/details/log_msg.h>
#include <spdlog/sinks/sink.h>
namespace spdlog {
namespace sinks {
template<typename Mutex>
class base_sink : public sink
{
public:
base_sink();
explicit base_sink(std::unique_ptr<spdlog::formatter> formatter);
~base_sink() override = default;
base_sink(const base_sink &) = delete;
base_sink(base_sink &&) = delete;
base_sink &operator=(const base_sink &) = delete;
base_sink &operator=(base_sink &&) = delete;
void log(const details::log_msg &msg) final;
void flush() final;
void set_pattern(const std::string &pattern) final;
void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) final;
protected:
// sink formatter
std::unique_ptr<spdlog::formatter> formatter_;
Mutex mutex_;
virtual void sink_it_(const details::log_msg &msg) = 0;
virtual void flush_() = 0;
virtual void set_pattern_(const std::string &pattern);
virtual void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter);
};
} // namespace sinks
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "base_sink-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/sinks/basic_file_sink.h>
#endif
#include <spdlog/common.h>
#include <spdlog/details/os.h>
namespace spdlog {
namespace sinks {
template<typename Mutex>
SPDLOG_INLINE basic_file_sink<Mutex>::basic_file_sink(const filename_t &filename, bool truncate)
{
file_helper_.open(filename, truncate);
}
template<typename Mutex>
SPDLOG_INLINE const filename_t &basic_file_sink<Mutex>::filename() const
{
return file_helper_.filename();
}
template<typename Mutex>
SPDLOG_INLINE void basic_file_sink<Mutex>::sink_it_(const details::log_msg &msg)
{
memory_buf_t formatted;
base_sink<Mutex>::formatter_->format(msg, formatted);
file_helper_.write(formatted);
}
template<typename Mutex>
SPDLOG_INLINE void basic_file_sink<Mutex>::flush_()
{
file_helper_.flush();
}
} // namespace sinks
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/file_helper.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/sinks/base_sink.h>
#include <spdlog/details/synchronous_factory.h>
#include <mutex>
#include <string>
namespace spdlog {
namespace sinks {
/*
* Trivial file sink with single file as target
*/
template<typename Mutex>
class basic_file_sink final : public base_sink<Mutex>
{
public:
explicit basic_file_sink(const filename_t &filename, bool truncate = false);
const filename_t &filename() const;
protected:
void sink_it_(const details::log_msg &msg) override;
void flush_() override;
private:
details::file_helper file_helper_;
};
using basic_file_sink_mt = basic_file_sink<std::mutex>;
using basic_file_sink_st = basic_file_sink<details::null_mutex>;
} // namespace sinks
//
// factory functions
//
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false)
{
return Factory::template create<sinks::basic_file_sink_mt>(logger_name, filename, truncate);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false)
{
return Factory::template create<sinks::basic_file_sink_st>(logger_name, filename, truncate);
}
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "basic_file_sink-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <spdlog/details/file_helper.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/fmt/fmt.h>
#include <spdlog/fmt/chrono.h>
#include <spdlog/sinks/base_sink.h>
#include <spdlog/details/os.h>
#include <spdlog/details/circular_q.h>
#include <spdlog/details/synchronous_factory.h>
#include <chrono>
#include <cstdio>
#include <ctime>
#include <mutex>
#include <string>
namespace spdlog {
namespace sinks {
/*
* Generator of daily log file names in format basename.YYYY-MM-DD.ext
*/
struct daily_filename_calculator
{
// Create filename for the form basename.YYYY-MM-DD
static filename_t calc_filename(const filename_t &filename, const tm &now_tm)
{
filename_t basename, ext;
std::tie(basename, ext) = details::file_helper::split_by_extension(filename);
return fmt::format(
SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}"), basename, now_tm.tm_year + 1900, now_tm.tm_mon + 1, now_tm.tm_mday, ext);
}
};
/*
* Generator of daily log file names with strftime format.
* Usages:
* auto sink = std::make_shared<spdlog::sinks::daily_file_format_sink_mt>("myapp-%Y-%m-%d:%H:%M:%S.log", hour, minute);"
* auto logger = spdlog::daily_logger_format_mt("loggername, "myapp-%Y-%m-%d:%X.log", hour, minute)"
*
*/
struct daily_filename_format_calculator
{
static filename_t calc_filename (const filename_t &filename, const tm &now_tm)
{
// generate fmt datetime format string, e.g. {:%Y-%m-%d}.
filename_t fmt_filename = fmt::format(SPDLOG_FILENAME_T ("{{:{}}}"), filename);
return fmt::format(fmt_filename, now_tm);
}
};
/*
* Rotating file sink based on date.
* If truncate != false , the created file will be truncated.
* If max_files > 0, retain only the last max_files and delete previous.
*/
template<typename Mutex, typename FileNameCalc = daily_filename_calculator>
class daily_file_sink final : public base_sink<Mutex>
{
public:
// create daily file sink which rotates on given time
daily_file_sink(filename_t base_filename, int rotation_hour, int rotation_minute, bool truncate = false, uint16_t max_files = 0)
: base_filename_(std::move(base_filename))
, rotation_h_(rotation_hour)
, rotation_m_(rotation_minute)
, truncate_(truncate)
, max_files_(max_files)
, filenames_q_()
{
if (rotation_hour < 0 || rotation_hour > 23 || rotation_minute < 0 || rotation_minute > 59)
{
throw_spdlog_ex("daily_file_sink: Invalid rotation time in ctor");
}
auto now = log_clock::now();
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
file_helper_.open(filename, truncate_);
rotation_tp_ = next_rotation_tp_();
if (max_files_ > 0)
{
init_filenames_q_();
}
}
filename_t filename()
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
return file_helper_.filename();
}
protected:
void sink_it_(const details::log_msg &msg) override
{
auto time = msg.time;
bool should_rotate = time >= rotation_tp_;
if (should_rotate)
{
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(time));
file_helper_.open(filename, truncate_);
rotation_tp_ = next_rotation_tp_();
}
memory_buf_t formatted;
base_sink<Mutex>::formatter_->format(msg, formatted);
file_helper_.write(formatted);
// Do the cleaning only at the end because it might throw on failure.
if (should_rotate && max_files_ > 0)
{
delete_old_();
}
}
void flush_() override
{
file_helper_.flush();
}
private:
void init_filenames_q_()
{
using details::os::path_exists;
filenames_q_ = details::circular_q<filename_t>(static_cast<size_t>(max_files_));
std::vector<filename_t> filenames;
auto now = log_clock::now();
while (filenames.size() < max_files_)
{
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
if (!path_exists(filename))
{
break;
}
filenames.emplace_back(filename);
now -= std::chrono::hours(24);
}
for (auto iter = filenames.rbegin(); iter != filenames.rend(); ++iter)
{
filenames_q_.push_back(std::move(*iter));
}
}
tm now_tm(log_clock::time_point tp)
{
time_t tnow = log_clock::to_time_t(tp);
return spdlog::details::os::localtime(tnow);
}
log_clock::time_point next_rotation_tp_()
{
auto now = log_clock::now();
tm date = now_tm(now);
date.tm_hour = rotation_h_;
date.tm_min = rotation_m_;
date.tm_sec = 0;
auto rotation_time = log_clock::from_time_t(std::mktime(&date));
if (rotation_time > now)
{
return rotation_time;
}
return {rotation_time + std::chrono::hours(24)};
}
// Delete the file N rotations ago.
// Throw spdlog_ex on failure to delete the old file.
void delete_old_()
{
using details::os::filename_to_str;
using details::os::remove_if_exists;
filename_t current_file = file_helper_.filename();
if (filenames_q_.full())
{
auto old_filename = std::move(filenames_q_.front());
filenames_q_.pop_front();
bool ok = remove_if_exists(old_filename) == 0;
if (!ok)
{
filenames_q_.push_back(std::move(current_file));
throw_spdlog_ex("Failed removing daily file " + filename_to_str(old_filename), errno);
}
}
filenames_q_.push_back(std::move(current_file));
}
filename_t base_filename_;
int rotation_h_;
int rotation_m_;
log_clock::time_point rotation_tp_;
details::file_helper file_helper_;
bool truncate_;
uint16_t max_files_;
details::circular_q<filename_t> filenames_q_;
};
using daily_file_sink_mt = daily_file_sink<std::mutex>;
using daily_file_sink_st = daily_file_sink<details::null_mutex>;
using daily_file_format_sink_mt = daily_file_sink<std::mutex, daily_filename_format_calculator>;
using daily_file_format_sink_st = daily_file_sink<details::null_mutex, daily_filename_format_calculator>;
} // namespace sinks
//
// factory functions
//
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> daily_logger_mt(
const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
{
return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> daily_logger_format_mt(
const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
{
return Factory::template create<sinks::daily_file_format_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> daily_logger_st(
const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
{
return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> daily_logger_format_st(
const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
{
return Factory::template create<sinks::daily_file_format_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include "base_sink.h"
#include <spdlog/details/log_msg.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/pattern_formatter.h>
#include <algorithm>
#include <memory>
#include <mutex>
#include <vector>
// Distribution sink (mux). Stores a vector of sinks which get called when log
// is called
namespace spdlog {
namespace sinks {
template<typename Mutex>
class dist_sink : public base_sink<Mutex>
{
public:
dist_sink() = default;
explicit dist_sink(std::vector<std::shared_ptr<sink>> sinks)
: sinks_(sinks)
{}
dist_sink(const dist_sink &) = delete;
dist_sink &operator=(const dist_sink &) = delete;
void add_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
sinks_.push_back(sink);
}
void remove_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
sinks_.erase(std::remove(sinks_.begin(), sinks_.end(), sink), sinks_.end());
}
void set_sinks(std::vector<std::shared_ptr<sink>> sinks)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
sinks_ = std::move(sinks);
}
std::vector<std::shared_ptr<sink>> &sinks()
{
return sinks_;
}
protected:
void sink_it_(const details::log_msg &msg) override
{
for (auto &sink : sinks_)
{
if (sink->should_log(msg.level))
{
sink->log(msg);
}
}
}
void flush_() override
{
for (auto &sink : sinks_)
{
sink->flush();
}
}
void set_pattern_(const std::string &pattern) override
{
set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
}
void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter) override
{
base_sink<Mutex>::formatter_ = std::move(sink_formatter);
for (auto &sink : sinks_)
{
sink->set_formatter(base_sink<Mutex>::formatter_->clone());
}
}
std::vector<std::shared_ptr<sink>> sinks_;
};
using dist_sink_mt = dist_sink<std::mutex>;
using dist_sink_st = dist_sink<details::null_mutex>;
} // namespace sinks
} // namespace spdlog

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