Initial revision

src/libthread/exit.c

@@ -0,0 +1,63 @@
+#include "threadimpl.h"
+#include <signal.h>
+
+char *_threadexitsallstatus;
+Channel *_threadwaitchan;
+
+void
+threadexits(char *exitstr)
+{
+	Proc *p;
+	Thread *t;
+
+	p = _threadgetproc();
+	t = p->thread;
+	t->moribund = 1;
+	if(exitstr==nil)
+		exitstr="";
+	utfecpy(p->exitstr, p->exitstr+ERRMAX, exitstr);
+	_sched();
+}
+
+void
+threadexitsall(char *exitstr)
+{
+	Proc *p;
+	int *pid;
+	int i, npid, mypid;
+
+	if(exitstr == nil)
+		exitstr = "";
+	_threadexitsallstatus = exitstr;
+	_threaddebug(DBGSCHED, "_threadexitsallstatus set to %p", _threadexitsallstatus);
+	mypid = _threadgetpid();
+
+	/*
+	 * signal others.
+	 * copying all the pids first avoids other threads
+	 * teardown procedures getting in the way.
+	 */
+	lock(&_threadpq.lock);
+	npid = 0;
+	for(p=_threadpq.head; p; p=p->next)
+		npid++;
+	pid = _threadmalloc(npid*sizeof(pid[0]), 0);
+	npid = 0;
+	for(p = _threadpq.head; p; p=p->next)
+		pid[npid++] = p->pid;
+	unlock(&_threadpq.lock);
+	for(i=0; i<npid; i++)
+		if(pid[i] != mypid)
+			kill(pid[i], SIGTERM);
+
+	/* leave */
+	exit(0);
+}
+
+Channel*
+threadwaitchan(void)
+{
+	if(_threadwaitchan==nil)
+		_threadwaitchan = chancreate(sizeof(Waitmsg*), 16);
+	return _threadwaitchan;
+}