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