1 #include <signal.h>
2 #include "threadimpl.h"
3 
4 char *_threadexitsallstatus;
5 Channel *_threadwaitchan;
6 
7 void
8 threadexits(char *exitstr)
9 {
10 	Proc *p;
11 	Thread *t;
12 
13 	p = _threadgetproc();
14 	t = p->thread;
15 	t->moribund = 1;
16 	_threaddebug(DBGSCHED, "threadexits %s", exitstr);
17 	if(exitstr==nil)
18 		exitstr="";
19 	utfecpy(p->exitstr, p->exitstr+ERRMAX, exitstr);
20 	_sched();
21 }
22 
23 void
24 threadexitsall(char *exitstr)
25 {
26 	Proc *p;
27 	int *pid;
28 	int i, npid, mypid;
29 
30 	_threaddebug(DBGSCHED, "threadexitsall %s", exitstr);
31 	if(exitstr == nil)
32 		exitstr = "";
33 	_threadexitsallstatus = exitstr;
34 	_threaddebug(DBGSCHED, "_threadexitsallstatus set to %p", _threadexitsallstatus);
35 	mypid = _threadgetpid();
36 
37 	/*
38 	 * signal others.
39 	 * copying all the pids first avoids other thread's
40 	 * teardown procedures getting in the way.
41 	 */
42 	lock(&_threadpq.lock);
43 	npid = 0;
44 	for(p=_threadpq.head; p; p=p->next)
45 		npid++;
46 	pid = _threadmalloc(npid*sizeof(pid[0]), 0);
47 	npid = 0;
48 	for(p = _threadpq.head; p; p=p->next)
49 		pid[npid++] = p->pid;
50 	unlock(&_threadpq.lock);
51 	for(i=0; i<npid; i++){
52 		_threaddebug(DBGSCHED, "threadexitsall kill %d", pid[i]);
53 		if(pid[i]==0 || pid[i]==-1)
54 			fprint(2, "bad pid in threadexitsall: %d\n", pid[i]);
55 		else if(pid[i] != mypid)
56 			kill(pid[i], SIGTERM);
57 	}
58 
59 	/* leave */
60 	exit(0);
61 }
62 
63 Channel*
64 threadwaitchan(void)
65 {
66 	if(_threadwaitchan==nil)
67 		_threadwaitchan = chancreate(sizeof(Waitmsg*), 16);
68 	return _threadwaitchan;
69 }