newlib-cygwin/newlib/libc/posix/usleep.c

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/* 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