wakeup.c

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/* wakeup.c - wakeup */

#include <xinu.h>

/*------------------------------------------------------------------------
 *  wakeup  -  Called by clock interrupt handler to awaken processes
 *------------------------------------------------------------------------
 */
void    wakeup(void)
{
    /* Awaken all processes that have no more time to sleep */

    resched_cntl(DEFER_START);
    while (nonempty(sleepq) && (firstkey(sleepq) <= 0)) {
        ready(dequeue(sleepq));
    }

    resched_cntl(DEFER_STOP);
    return;
}