> Subject: Bug#294078: bash: wait neglects short-lived children (POSIX
> violation)
>
> Package: bash
> Version: 3.0-14
> Severity: normal
>
> POSIX/SUS specifies that shells should keep track of children that
> have already exited [up to a limit of sysconf(_SC_CHILD_MAX)] for use
> by the wait builtin, to avoid possible race conditions. However, bash
> only supports waiting for children that are still alive, even when
> invoked with --posix.
The current development version of bash-3.1 behaves as I think you want:
z3.local(2)$ cat x2
exit 125 &
e=$!
sleep 2 &
wait $!
echo $?
wait $e
echo $?
wait $e
echo $?
z3.local(2)$ ./sh ./x2
0
125
125
It's an extension. Bash is allowed to discard the status of
terminated processes after the calling shell script obtains them via
wait, and bash-3.0 does so when job control is not active.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
Live Strong.
Chet Ramey, ITS, CWRU [EMAIL PROTECTED] http://cnswww.cns.cwru.edu/~chet/
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