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timer.h
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61 lines (49 loc) · 1.16 KB
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#ifndef _TIMER_H_
#define _TIMER_H_
#ifdef __cplusplus
extern "C" { /* C++ will be happy */
#endif
/*
* Using only a single timer (either alarm or the higher-precision setitimer),
* provide a set of fuctions that allows a process to set any number of timers.
*
* 用一个alarm闹钟实现管理多个定时任务的闹钟
*/
/*
* 类型定义：Timer标识类型, Timer类型
*/
typedef long TimerId_t;
#define ADD_FAILED ((TimerId_t)(-1))
enum TimerType {
LOOP, /* 循环型闹钟 */
ONCE, /* 一次性闹钟 */
/*
... 其他类型
*/
};
/**
* 初始化Timer，成功返回0，失败返回-1
*/
int timer_init(void);
/**
* 添加Timer，成功返回新添加的Timer标识，失败返回ADD_FAILED
* @sec: Timer触发的时间间隔
* @task: 绑定Timer的任务
* @arg: 任务传参
* @type: Timer类型
*/
typedef void Task_t(void *);
TimerId_t timer_add(int sec, Task_t *task, void *arg, enum TimerType type);
/**
* 删除指定的闹钟
* @id：闹钟标识
*/
void timer_del(TimerId_t id);
/**
* 销毁所有闹钟
*/
void timer_destroy(void);
#ifdef __cplusplus
}
#endif
#endif //_TIMER_H_