mirrors/spdlog
1
0
Fork 0
mirror of https://github.com/gabime/spdlog.git synced 2024-11-15 16:35:45 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Updated readme.

Browse Source
This commit is contained in:
gabime 2020-03-06 15:30:14 +02:00
parent 8038bc2fc8
commit 69f3d2678e
1 changed files with 18 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
README.md
View File

@ -36,7 +36,7 @@ $ cmake .. && make -j
## Features ## Features
* Very fast (see [benchmarks](#benchmarks) below). * Very fast (see [benchmarks](#benchmarks) below).
* Headers only, just copy and use. Or use as a compiled library. * Headers only or compiled version
* Feature rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library. * Feature rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library.
* **New!** [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display later on demand. * **New!** [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display later on demand.
* Asynchronous mode (optional) * Asynchronous mode (optional)
@ -49,7 +49,8 @@ $ cmake .. && make -j
* syslog. * syslog.
* Windows debugger (```OutputDebugString(..)```) * Windows debugger (```OutputDebugString(..)```)
* Easily extendable with custom log targets (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface). * Easily extendable with custom log targets (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface).
* Severity based filtering - threshold levels can be modified in runtime as well as in compile time. * Log filtering - log levels can be modified in runtime as well as in compile time.
* Support for loading log levels can be argv or env vars
## Usage samples ## Usage samples
@ -85,6 +86,21 @@ int main()
auto file_logger = spdlog::basic_logger_mt("basic_logger", "logs/basic.txt"); auto file_logger = spdlog::basic_logger_mt("basic_logger", "logs/basic.txt");
spdlog::set_default_logger(file_logger); spdlog::set_default_logger(file_logger);
} }
```
#### load log levels from env variable
```c++
#include "spdlog/cfg/env.h"
void load_levels_example()
{
// Set the log level to "info" and mylogger to to "trace":
// SPDLOG_LEVEL=info,mylogger=trace && ./example
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(args, argv);
}
``` ```
#### create stdout/stderr logger object #### create stdout/stderr logger object
```c++ ```c++