1992/0519/port/proc.c (diff list | history)

1992/0428/sys/src/9/port/proc.c:297,302 – 1992/0519/sys/src/9/port/proc.c:297,303 (short | long | prev | next)
Add splhi calls to sleep, tsleep around checks of r->p. (BUG FIX?) rsc Mon Mar 20 17:14:24 2006
1990/0227		sleep(Rendez *r, int (*f)(void*), void *arg) {
1991/0727		Proc *p;
1992/0519		int s;
1991/0727		p = u->p;
1990/0227		sleep1(r, f, arg);
1992/0428/sys/src/9/port/proc.c:304,313 – 1992/0519/sys/src/9/port/proc.c:305,316
1991/0727		sched(); /* notepending may go true while asleep */ if(p->notepending){ p->notepending = 0;
1992/0519		s = splhi();
1991/0805		lock(r); if(r->p == p) r->p = 0; unlock(r);
1992/0519		splx(s);
1990/11211		error(Eintr);
1990/0227		} }
1992/0428/sys/src/9/port/proc.c:317,322 – 1992/0519/sys/src/9/port/proc.c:320,326
1990/0227		{ Alarm *a;
1991/0727		Proc *p;
1992/0519		int s;
1990/0227
1991/0727		p = u->p;
1990/0227		sleep1(r, f, arg);
1992/0428/sys/src/9/port/proc.c:327,336 – 1992/0519/sys/src/9/port/proc.c:331,342
1991/0727		} if(p->notepending){ p->notepending = 0;
1992/0519		s = splhi();
1991/0805		lock(r); if(r->p == p) r->p = 0; unlock(r);
1992/0519		splx(s);
1990/11211		error(Eintr);
1990/0227		} }