23 lines
430 B
C
23 lines
430 B
C
|
/* libc/posix/usleep.c - usleep function */
|
||
|
|
|
||
|
|
/* Written 2002 by Jeff Johnston */
|
||
|
|
|
||
|
|
#ifdef HAVE_NANOSLEEP
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <time.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
int usleep(useconds_t useconds)
|
||
|
|
{
|
||
|
|
struct timespec ts;
|
||
|
|
|
||
|
|
ts.tv_sec = (long int)useconds / 1000000;
|
||
|
|
ts.tv_nsec = ((long int)useconds % 1000000) * 1000;
|
||
|
|
if (!nanosleep(&ts,&ts)) return 0;
|
||
|
|
if (errno == EINTR) return ts.tv_sec;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|