linux tick 函数,linux上的GetTickCount函数

#include

// 返回自系统开机以来的毫秒数(tick)

unsigned long GetTickCount(){struct timespec ts;clock_gettime(CLOCK_MONOTONIC, &ts);return (ts.tv_sec * 1000 + ts.tv_nsec / 1000000);

}

int main()

{

struct timespec time1 = { 0, 0 };

clock_gettime(CLOCK_REALTIME, &time1);

printf("CLOCK_REALTIME: %d, %dn", time1.tv_sec, time1.tv_nsec);

clock_gettime(CLOCK_MONOTONIC, &time1);

printf("CLOCK_MONOTONIC: %d, %dn", time1.tv_sec, time1.tv_nsec);

clock_gettime(CLOCK_MONOTONIC_RAW, &time1);

printf("CLOCK_MONOTONIC_RAW: %d, %dn", time1.tv_sec, time1.tv_nsec);

clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &time1);

printf("CLOCK_PROCESS_CPUTIME_ID: %d, %dn", time1.tv_sec,

time1.tv_nsec);

clock_gettime(CLOCK_THREAD_CPUTIME_ID, &time1);

printf("CLOCK_THREAD_CPUTIME_ID: %d, %dn", time1.tv_sec,

time1.tv_nsec);

printf("n%dn", time(NULL));

printf("tick count in ms: %uln", GetTickCount());

return 0;

}