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better exec handling

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rsc 2004-12-27 19:11:33 +00:00
parent 0341761074
commit 8cbd854a8a
5 changed files with 43 additions and 78 deletions
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19
src/libthread/thread.c
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@ -138,15 +138,23 @@ _threadready(_Thread *t)
p = t->proc;
lock(&p->lock);
addthread(&p->runqueue, t);
_procwakeup(&p->runrend);
//print("%d wake for job %d->%d\n", time(0), getpid(), p->osprocid);
if(p != proc())
_procwakeup(&p->runrend);
unlock(&p->lock);
}
void
int
threadyield(void)
{
_threadready(proc()->thread);
int n;
Proc *p;
p = proc();
n = p->nswitch;
_threadready(p->thread);
_threadswitch();
return p->nswitch - n;
}
void
@ -184,13 +192,14 @@ scheduler(Proc *p)
if(p->nthread == 0)
goto Out;
p->runrend.l = &p->lock;
print("sleep for jobs %d\n", getpid());
//print("%d sleep for jobs %d\n", time(0), getpid());
_procsleep(&p->runrend);
print("wake from jobs %d\n", getpid());
//print("%d wake from jobs %d\n", time(0), getpid());
}
delthread(&p->runqueue, t);
unlock(&p->lock);
p->thread = t;
p->nswitch++;
// print("run %s %d\n", t->name, t->id);
contextswitch(&p->schedcontext, &t->context);
p->thread = nil;