FWIW, VMS fortunately supports a similar functionality, but in a different way.
Task Termination Mailboxes can provide what you want here. I've used them in C programming, but I don't know how difficult it would be to use from Perl. I think that you'd have to do some C programming using SYS$CREPRC. --Jordan Henderson Please copy the DAASC EDI group on all EDI support issues. The email address for the DAASC EDI group is [EMAIL PROTECTED] > -----Original Message----- > From: IvorW [mailto:[EMAIL PROTECTED] > Sent: Sunday, January 09, 2005 4:40 AM > To: vmsperl@perl.org > Subject: Re: use of waitpid > > ----- Original Message ----- > From: "Sampath Ravindhran" <[EMAIL PROTECTED]> > To: <vmsperl@perl.org> > Sent: 09 January 2005 02:47 > Subject: use of waitpid > > > > > > > > I have a perl script that calls waitpid, that doesn't seem to work at > > all on VMS. A simple test case like the following: > > ---- > > use POSIX ":sys_wait_h"; > > > > my $reap1 = waitpid("53CCDA08",&WNOHANG); > > print "Exit = $?\n"; > > print "REAP = $reap1\n"; > > ------- > > > > simply prints out > > --- > > Exit = 256 > > REAP = 53 > > --- > > regardless of whether the process with PID 53CCDA08 (in example above) > > exists or not. Is it required that the targeted waitpid process be a > > subprocess of the current process calling waitpid() ? > > > > On Unix platforms, they are able to 'reap' a process that has already > > exited and get its final exit status? Is this feasible on VMS? If not, > > how do I emulate this situation, other than the ugly method of having > > the exiting application write it's status to a file on disk which I can > > go in and check? (This is ugly because there's potential for this to > > cause confusion, when sometimes the process could crash and can't write > > out the exit status.) > > There is another factor on VMS. The privilege mask restricts access to > other processes on the system. If the process has GROUP, it can operate > on (and kill) processes in the same groupid. If it has SYSTEM, it can operate > on any process. > > Hope this helps, > > Ivor.
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