/* sleep.c - sleep sleepms */

#include 

#define MAXSECONDS      2147483         /* Max seconds per 32-bit msec  */

/*------------------------------------------------------------------------
 *  sleep  -  Delay the calling process n seconds
 *------------------------------------------------------------------------
 */
syscall sleep(
          int32 delay           /* Time to delay in seconds     */
        )
{
        if ( (delay < 0) || (delay > MAXSECONDS) ) {
                return SYSERR;
        }
        sleepms(1000*delay);
        return OK;
}

/*------------------------------------------------------------------------
 *  sleepms  -  Delay the calling process n milliseconds
 *------------------------------------------------------------------------
 */
syscall sleepms(
          int32 delay                   /* Time to delay in msec.       */
        )
{
        intmask mask;                   /* Saved interrupt mask         */

        if (delay < 0) {
                return SYSERR;
        }

        if (delay == 0) {
                yield();
                return OK;
        }

        /* Delay calling process */

        mask = disable();
        if (insertd(currpid, sleepq, delay) == SYSERR) {
                restore(mask);
                return SYSERR;
        }

        proctab[currpid].prstate = PR_SLEEP;
        resched();
        restore(mask);
        return OK;
}