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shichao-an/apue_clock_gettime.h

Last active August 29, 2015 14:22
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apue_clock_gettime.h
#include <sys/time.h>
int clock_gettime(clockid_t clock_id, struct timespec *tsp);
/* Returns: 0 if OK, −1 on error */
int clock_getres(clockid_t clock_id, struct timespec *tsp);
/* Returns: 0 if OK, −1 on error */
int clock_settime(clockid_t clock_id, const struct timespec *tsp);
/* Returns: 0 if OK, −1 on error */
int gettimeofday(struct timeval *restrict tp, void *restrict tzp);
/* Returns: 0 always */
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