1991/1110/port/proc.c (diff list | history)

1991/1109/sys/src/9/port/proc.c:213,254 – 1991/1110/sys/src/9/port/proc.c:213,249 (short | long | prev | next)
Rewrite goto in newproc as for loop. Call resrcwait instead of manual sleeping. Add traceme proc ctl message. rsc Mon Mar 20 17:30:36 2006
1990/0227		{ Proc *p; loop: lock(&procalloc); if(p = procalloc.free){ /* assign = */ procalloc.free = p->qnext;
1991/0926		p->state = Scheding; p->psstate = "New";
1991/1110		for(;;) { lock(&procalloc); if(p = procalloc.free){ /* assign = */ procalloc.free = p->qnext; p->state = Scheding; p->psstate = "New"; unlock(&procalloc); p->mach = 0; p->qnext = 0; p->nchild = 0; p->nwait = 0; p->waitq = 0; p->pgrp = 0; p->egrp = 0; p->fgrp = 0; p->pdbg = 0; p->fpstate = FPinit; p->kp = 0; p->procctl = 0; p->notepending = 0; memset(p->seg, 0, sizeof p->seg); lock(&pidalloc); p->pid = ++pidalloc.pid; unlock(&pidalloc); if(p->pid == 0) panic("pidalloc"); return p; }
1990/0227		unlock(&procalloc); p->mach = 0; p->qnext = 0; p->nchild = 0;
1991/0926		p->nwait = 0; p->waitq = 0;
1991/0317		p->pgrp = 0;
1991/0705		p->egrp = 0; p->fgrp = 0;
1991/1109		p->procmode = 0644;
1990/0722		p->fpstate = FPinit;
1991/0425		p->kp = 0;
1991/0705		p->procctl = 0;
1991/0727		p->notepending = 0;
1990/0227		memset(p->seg, 0, sizeof p->seg); lock(&pidalloc); p->pid = ++pidalloc.pid; unlock(&pidalloc); if(p->pid == 0) panic("pidalloc"); return p;
1991/1110		resrcwait("no procs");
1990/0227		} unlock(&procalloc); print("no procs\n"); if(u == 0) panic("newproc");
1990/0619		u->p->state = Wakeme;
1990/0227		alarm(1000, wakeme, u->p); sched(); goto loop; } void
1991/1109/sys/src/9/port/proc.c:584,591 – 1991/1110/sys/src/9/port/proc.c:579,592
1991/0705		/* * sched() cannot wait on these locks */ lock(&procalloc); lock(&c->debug);
1991/1110		/* release debuggers */ if(c->pdbg) { wakeup(&c->pdbg->sleep); c->pdbg = 0; } lock(&procalloc);
1991/0705		lock(&palloc);
1990/03081		c->state = Moribund;
1991/1109/sys/src/9/port/proc.c:740,750 – 1991/1110/sys/src/9/port/proc.c:741,761
1991/0705		switch(p->procctl) { case Proc_exitme: pexit("Killed", 1);
1991/1110		case Proc_traceme: if(u->nnote == 0) return; /* No break */
1991/0705		case Proc_stopme: p->procctl = 0;
1991/1108		state = p->psstate; p->psstate = "Stopped";
1991/1110		/* free a waiting debugger */ lock(&p->debug); if(p->pdbg) { wakeup(&p->pdbg->sleep); p->pdbg = 0; } unlock(&p->debug);
1991/0705		p->state = Stopped; sched();
1991/1108		p->psstate = state;