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Re: SomeOne posted to me that the Process.exitValue() are ....
- To: Tom Tromey <tromey at cygnus dot com>
- Subject: Re: SomeOne posted to me that the Process.exitValue() are ....
- From: Uncle George <gatgul at voicenet dot com>
- Date: Sat, 13 Nov 1999 05:13:58 -0500
- CC: mauve-discuss at sourceware dot cygnus dot com
- Organization: Big-Endian
- References: <3826BA69.415FF0E2@voicenet.com> <199911130420.UAA12371@ferrule.cygnus.com>
Tom Tromey wrote:
> >>>>> ">" == Uncle George <email@example.com> writes:
> >> I had originally though that the exit valus of the subprocess would
> >> be a composite of system & user exit codes. It appears ( right now
> >> ) on the face of it that the user exit code is only returned.
> What are the system and user exit codes? I have no idea what you
that would be something like ( as an example of a usr exit code )
an example of a system exit code would be
char *p = 0xffffffffffffffff;
*p = 1; ( and now u get a
segfault/ ie system exit code. )
> >> So what does this gotta do with this list ? i'd like to devel a
> >> test for process.exitValue(). I suppose this test will be somewhat
> >> 'unix' centric.
> >> what r my choices.
> This is probably hard to do in our framework.
> You could try writing a couple of shell scripts, and creating
> processes that run them. Then check the exit status of the process
> objects. (Or you could just use /bin/true and /bin/false, given that
> the scripts will probably be limited to Unix anyway.)
> You'd probably want to put a new tag to indicate that this test can
> only be run on certain systems ("POSIX" comes to mind).
can I submit a 'c' pgm and have java exec a compile of the program ?
exec("cc -g -o a a.c");
process a = exec(" a 4");
if( a.exitValue() != 4 ) inconsistent return codes ?
Its a little harder to 'cause' deliberately core-crashes, but a few can