/*-
 * usleep.c - OS dependant implementation of usleep().
 *
 * Copyright (c) 1991 by Patrick J. Naughton.
 *
 * Revision History:
 * 30-Aug-90: written.
 *
 */

#include <time.h>
/*#define SYSV*/

int
usleep(usec)
    unsigned long usec;
{
#ifdef SYSV
    poll((struct poll *) 0, (size_t) 0, usec / 1000);	/* ms resolution */
#else
    struct timeval timeout;
    timeout.tv_usec = usec % (unsigned long) 1000000;
    timeout.tv_sec = usec / (unsigned long) 1000000;
    select(0, (void *) 0, (void *) 0, (void *) 0, &timeout);
#endif
    return 0;
}