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Annotation of xinu/sys/sleep10.c, revision 1.1

1.1     ! root        1: /* sleep10.c - sleep10 */
        !             2: 
        !             3: #include <conf.h>
        !             4: #include <kernel.h>
        !             5: #include <proc.h>
        !             6: #include <q.h>
        !             7: #include <sleep.h>
        !             8: 
        !             9: /*------------------------------------------------------------------------
        !            10:  * sleep10  --  delay the caller for a time specified in tenths of seconds
        !            11:  *------------------------------------------------------------------------
        !            12:  */
        !            13: SYSCALL        sleep10(n)
        !            14:        int n;
        !            15: {
        !            16:        PStype ps;
        !            17: 
        !            18:        if (n < 0  || clkruns==0)
        !            19:                return(SYSERR);
        !            20:         disable(ps);
        !            21:        if (n == 0) {                   /* sleep10(0) -> end time slice */
        !            22:                ;
        !            23:        } else {
        !            24:                insertd(currpid,clockq,n);
        !            25:                slnempty = TRUE;
        !            26:                sltop = (short *) & q[q[clockq].qnext].qkey;
        !            27:                proctab[currpid].pstate = PRSLEEP;
        !            28:        }
        !            29:        resched();
        !            30:         restore(ps);
        !            31:        return(OK);
        !            32: }

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