Yes, there's a
system function. In fact, it's even
called
system :). There's also
exec, which, in
combination with
fork, might work for you here.
I think what you might want to do is to do a fork in
your CGI program. In the parent, just exit.
In the child, you close STDIN, STDOUT, and STDERR,
then exec your new process.
The key is that you close the open (shared) filehandles;
this breaks the connection between the parent and
child. Otherwise, the parent won't exit.
Here's some sample code:
my $pid = fork;
die "Couldn't fork: $!" unless defined $pid;
if ($pid) { # parent
print "Forked off a child!";
exit;
}
else { # child
close(STDIN);
close(STDOUT);
close(STDERR);
exec "/foo/bar/long/process"
or die "Can't exec: $!";
}
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