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- #pragma once
- #include "stddef.h"
- // 操作系统定义时间以ns为单位
- #define CLOCKS_PER_SEC 1000000
- struct tm
- {
- int tm_sec; /* Seconds. [0-60] (1 leap second) */
- int tm_min; /* Minutes. [0-59] */
- int tm_hour; /* Hours. [0-23] */
- int tm_mday; /* Day. [1-31] */
- int tm_mon; /* Month. [0-11] */
- int tm_year; /* Year - 1900. */
- int tm_wday; /* Day of week. [0-6] */
- int tm_yday; /* Days in year.[0-365] */
- int tm_isdst; /* DST. [-1/0/1]*/
- long int __tm_gmtoff; /* Seconds east of UTC. */
- const char *__tm_zone; /* Timezone abbreviation. */
- };
- struct timespec
- {
- long int tv_sec; // 秒
- long long tv_nsec; // 纳秒
- };
- /**
- * @brief 休眠指定时间
- *
- * @param rqtp 指定休眠的时间
- * @param rmtp 返回的剩余休眠时间
- * @return int
- */
- extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
- /**
- * @brief 睡眠指定时间
- *
- * @param usec 微秒
- * @return int
- */
- extern int usleep(useconds_t usec);
- /**
- * @brief 获取当前的CPU时间
- *
- * @return uint64_t timer_jiffies
- */
- extern uint64_t clock();
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