unix-linux下多功能定时器，可以有多个alarm，线程安全。-unix-linux under the multi-function timer, you can have more than one alarm, thread-safe.

适用于Linux的多线程的timer轻量级组件，适合需要并发处理的timer应用，非常高效易用。-For Linux multithreaded timer lightweight components for applications requiring concurrent processing timer application, very easy to use and efficient.