From c4097c29512269f4547ebefb8abdc57a2892b479 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Tue, 11 May 2004 17:51:27 +0000
Subject: Fix small bugs.

---
 src/libthread/sched.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'src/libthread/sched.c')

diff --git a/src/libthread/sched.c b/src/libthread/sched.c
index 9ad7298b..bdb9ad6b 100644
--- a/src/libthread/sched.c
+++ b/src/libthread/sched.c
@@ -171,7 +171,7 @@ needstack(int howmuch)
 	}
 }
 
-void
+int
 _sched(void)
 {
 	Proc *p;
@@ -186,8 +186,8 @@ Resched:
 	//		psstate(t->state), &t->sched, &p->sched);
 		if(_setlabel(&t->sched)==0)
 			_gotolabel(&p->sched);
-		_threadstacklimit(t->stk);
-		return;
+		_threadstacklimit(t->stk, t->stk+t->stksize);
+		return p->nsched++;
 	}else{
 		t = runthread(p);
 		if(t == nil){
@@ -277,10 +277,15 @@ _threadidle(void)
 	unlock(&p->readylock);
 }
 
-void
+int
 yield(void)
 {
-	_sched();
+	Proc *p;
+	int nsched;
+
+	p = _threadgetproc();
+	nsched = p->nsched;
+	return _sched() - nsched;
 }
 
 void
-- 
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