1990/0324/port/proc.c (diff list | history)

1990/0322/sys/src/9/port/proc.c:364,376 – 1990/0324/sys/src/9/port/proc.c:364,377 (short | long | prev | next)
Split Proc.wait back into Proc.wait.use and Proc.wait.queue. (BUG FIX?) rsc Mon Mar 20 17:14:01 2006
1990/0227		* Any of my children exiting? */
1990/03081		while(c->nchild){
1990/0322		lock(&c->wait); if(c->wait.locked == 0){ /* no child is exiting */
1990/0324		lock(&c->wait.queue); if(canlock(&c->wait.use)){ /* no child is exiting */
1990/03081		c->exiting = 1;
1990/0322		unlock(&c->wait);
1990/0324		unlock(&c->wait.use); unlock(&c->wait.queue);
1990/0227		break; }else{ /* must wait for child */
1990/0322		unlock(&c->wait);
1990/0324		unlock(&c->wait.queue);
1990/0227		pwait(0); } }
1990/0322/sys/src/9/port/proc.c:383,389 – 1990/0324/sys/src/9/port/proc.c:384,390
1990/0227		if(p == 0) goto out; qlock(&p->wait);
1990/0322		lock(&p->wait);
1990/0324		lock(&p->wait.queue);
1990/03081		if(p->pid==c->parentpid && !p->exiting){
1990/0227		w.pid = mypid; strcpy(w.msg, status);
1990/0322/sys/src/9/port/proc.c:401,410 – 1990/0324/sys/src/9/port/proc.c:402,411
1990/03081		c->state = Exiting;
1990/0227		if(p->state == Inwait) ready(p);
1990/0322		unlock(&p->wait);
1990/0324		unlock(&p->wait.queue);
1990/0227		sched(); }else{
1990/0322		unlock(&p->wait);
1990/0324		unlock(&p->wait.queue);
1990/0227		qunlock(&p->wait); } out:
1990/0322/sys/src/9/port/proc.c:475,501 – 1990/0324/sys/src/9/port/proc.c:476,496
1990/0227		p = u->p; again:
1990/0322		while(canlock(&p->wait)){ if(p->wait.locked){ /* child is exiting; wait for him */ unlock(&p->wait); break; }
1990/0324		while(canlock(&p->wait.use)){
1990/0227		if(p->nchild == 0){
1990/0322		unlock(&p->wait);
1990/0227		qunlock(&p->wait); error(0, Enochild); } p->state = Inwait;
1990/0322		unlock(&p->wait);
1990/0227		qunlock(&p->wait); sched(); }
1990/0322		lock(&p->wait); /* wait until child is finished */
1990/0324		lock(&p->wait.queue); /* wait until child is finished */
1990/0227		c = p->child; if(c == 0){ print("pwait %d\n", p->pid); p->state = Inwait;
1990/0322		unlock(&p->wait);
1990/0324		unlock(&p->wait.queue);
1990/0227		sched(); goto again; }
1990/0322/sys/src/9/port/proc.c:507,513 – 1990/0324/sys/src/9/port/proc.c:502,508
1990/0227		p->time[TCSys] += c->time[TSys] + c->time[TCSys]; p->time[TCReal] += c->time[TReal]; p->nchild--;
1990/0322		unlock(&p->wait);
1990/0324		unlock(&p->wait.queue);
1990/0227		qunlock(&p->wait); ready(c); return cpid;