destroythread.c
1.59 KB
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/**************************************************************************
* *
* Copyright (C) 1994, Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs contain *
* unpublished proprietary information of Silicon Graphics, Inc., and *
* are protected by Federal copyright law. They may not be disclosed *
* to third parties or copied or duplicated in any form, in whole or *
* in part, without the prior written consent of Silicon Graphics, Inc. *
* *
**************************************************************************/
#include "osint.h"
/*
* osDestroyThread(OSThread *t)
*
* If the thread is NULL or the running thread, remove the running thread
* from the active list and jump to the dispatcher. Otherwise, remove
* the thread from the queue it is on (if it is on one) as well as the
* active list.
*/
void
osDestroyThread(OSThread *t)
{
register u32 saveMask;
register OSThread *pred, *succ;
/* Disable interrupts */
saveMask = __osDisableInt();
if (t == (OSThread *)NULL)
t = __osRunningThread;
else if (t->state != OS_STATE_STOPPED)
__osDequeueThread(t->queue, t);
if (__osActiveQueue == t) {
__osActiveQueue = __osActiveQueue->tlnext;
} else {
pred = __osActiveQueue;
while (pred->priority != -1) {
succ = pred->tlnext;
if (succ == t) { /* found it */
pred->tlnext = t->tlnext; /* remove it */
break;
}
pred = succ;
}
}
if (t == __osRunningThread)
__osDispatchThread();
/* Restore interrupts */
__osRestoreInt(saveMask);
}