c-log是一个稳定，高效，多线程安全，易用，简单的C/C++ 日志库，在github主页上有丰富的测试case，后续将会推迟直接输出到scribe等集中式日志收集中间件上，帮助用户更好的收集，分析日志

示例代码：

log_init(LL_TRACE, "mysql", "./log/");  log_notice("%s [time:%d]", "test calling log", time(NULL));  log_debug("debug msg,only write to log when the loglevel bigger than or equal to debug [time:%d]", time(NULL));  log_warn("warnning msg will be writing to the error files [time:%d]", time(NULL));  log_error("you also can change  number of output files by rewrite the macro_define.h");

项目主页：http://www.open-open.com/lib/view/home/1379911861992