busybox/shell/ash_doc.txt

	Wait + signals

We had some bugs here which are hard to test in testsuite.

Bug 1280 (http://busybox.net/bugs/view.php?id=1280):
was misbehaving in interactive ash. Correct behavior:

$ sleep 20 &
$ wait
^C
$ wait
^C
$ wait
^C
...

Bug 1984 (http://busybox.net/bugs/view.php?id=1984):
traps were not triggering:

trap_handler_usr () {
    echo trap usr
}
trap_handler_int () {
    echo trap int
}
trap trap_handler_usr USR1
trap trap_handler_int INT
sleep 3600 &
echo "Please do: kill -USR1 $$"
echo "or: kill -INT $$"
while true; do wait; echo wait interrupted; done
1	Wait + signals
2
3	We had some bugs here which are hard to test in testsuite.
4
5	Bug 1280 (http://busybox.net/bugs/view.php?id=1280):
6	was misbehaving in interactive ash. Correct behavior:
7
8	$ sleep 20 &
9	$ wait
10	^C
11	$ wait
12	^C
13	$ wait
14	^C
15	...
16
17	Bug 1984 (http://busybox.net/bugs/view.php?id=1984):
18	traps were not triggering:
19
20	trap_handler_usr () {
21	echo trap usr
22	}
23	trap_handler_int () {
24	echo trap int
25	}
26	trap trap_handler_usr USR1
27	trap trap_handler_int INT
28	sleep 3600 &
29	echo "Please do: kill -USR1 $$"
30	echo "or: kill -INT $$"
31	while true; do wait; echo wait interrupted; done