From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Wed, 25 Apr 2012 15:46:46 -0400
To: 9fans@9fans.net
Message-ID: <16d20c29be00a62eacb3dba96a700922@brasstown.quanstro.net>
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Subject: [9fans] what am i missing
Topicbox-Message-UUID: 7e543c16-ead7-11e9-9d60-3106f5b1d025

i just modified _schedexecwait to not eat wait messages.

i think that if you're asynchronously procexecing() and
waiting for wait messages, some could have been lost.

have i missed something?  this seems too basic.

- erik
---

void
_schedexecwait(void)
{
	int pid;
	Channel *c;
	Proc *p;
	Thread *t;
	Waitmsg *w;

	p = _threadgetproc();
	t = p->thread;
	pid = t->ret;
	_threaddebug(DBGEXEC, "_schedexecwait %d", t->ret);

	rfork(RFCFDG);
	for(;;){
		w = wait();
		if(w == nil)
			break;
		if(w->pid == pid)
			break;
++		if((c = _threadwaitchan) != nil)
++			sendp(c, w);
++		else
			free(w);
	}
	if(w != nil){
		if((c = _threadwaitchan) != nil)
			sendp(c, w);
		else
			free(w);
	}
	threadexits("procexec");
}