103 lines
1.8 KiB
C
103 lines
1.8 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <libc.h>
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#include <thread.h>
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#include "threadimpl.h"
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static void tinterrupt(Proc*, Thread*);
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static void
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threadxxxgrp(int grp, int dokill)
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{
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Proc *p;
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Thread *t;
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jehanne_lock(&_threadpq.lock);
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for(p=_threadpq.head; p; p=p->next){
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jehanne_lock(&p->lock);
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for(t=p->threads.head; t; t=t->nextt)
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if(t->grp == grp){
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if(dokill)
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t->moribund = 1;
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tinterrupt(p, t);
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}
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jehanne_unlock(&p->lock);
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}
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jehanne_unlock(&_threadpq.lock);
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_threadbreakrendez();
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}
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static void
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threadxxx(int id, int dokill)
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{
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Proc *p;
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Thread *t;
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jehanne_lock(&_threadpq.lock);
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for(p=_threadpq.head; p; p=p->next){
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jehanne_lock(&p->lock);
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for(t=p->threads.head; t; t=t->nextt)
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if(t->id == id){
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if(dokill)
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t->moribund = 1;
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tinterrupt(p, t);
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jehanne_unlock(&p->lock);
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jehanne_unlock(&_threadpq.lock);
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_threadbreakrendez();
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return;
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}
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jehanne_unlock(&p->lock);
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}
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jehanne_unlock(&_threadpq.lock);
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_threaddebug(DBGNOTE, "Can't find thread to kill");
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return;
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}
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void
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threadkillgrp(int grp)
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{
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threadxxxgrp(grp, 1);
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}
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void
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threadkill(int id)
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{
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threadxxx(id, 1);
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}
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void
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threadintgrp(int grp)
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{
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threadxxxgrp(grp, 0);
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}
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void
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threadint(int id)
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{
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threadxxx(id, 0);
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}
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static void
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tinterrupt(Proc *p, Thread *t)
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{
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switch(t->state){
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case Running:
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jehanne_postnote(PNPROC, p->pid, "threadint");
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break;
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case Rendezvous:
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_threadflagrendez(t);
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break;
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case Dead:
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case Ready:
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break;
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}
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}
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