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feature: Add sleep function

This commit is contained in:
zhangfanfan2 2021-05-11 16:48:35 +08:00 committed by Gitee
parent bb90e629cb
commit 03be5e6e92
1 changed files with 11 additions and 1 deletions
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12
kal/posix/src/time.c
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@ -644,7 +644,17 @@ int settimeofday(const struct timeval *tv, const struct timezone *tz)
int usleep(unsigned useconds) int usleep(unsigned useconds)
{ {
struct timespec specTime = { 0 }; struct timespec specTime = { 0 };
UINT64 nanoseconds = useconds * OS_SYS_NS_PER_US; UINT64 nanoseconds = (UINT64)useconds * OS_SYS_NS_PER_US;
specTime.tv_sec = (time_t)(nanoseconds / OS_SYS_NS_PER_SECOND);
specTime.tv_nsec = (long)(nanoseconds % OS_SYS_NS_PER_SECOND);
return nanosleep(&specTime, NULL);
}
unsigned sleep(unsigned seconds)
{
struct timespec specTime = { 0 };
UINT64 nanoseconds = (UINT64)seconds * OS_SYS_NS_PER_SECOND;
specTime.tv_sec = (time_t)(nanoseconds / OS_SYS_NS_PER_SECOND); specTime.tv_sec = (time_t)(nanoseconds / OS_SYS_NS_PER_SECOND);
specTime.tv_nsec = (long)(nanoseconds % OS_SYS_NS_PER_SECOND); specTime.tv_nsec = (long)(nanoseconds % OS_SYS_NS_PER_SECOND);