setpgrpPID,PGRP
This function sets the current process group (pgrp) for the specified
PID
(use a
PID
of 0 for
the current process). Invoking
setpgrp
will
produce a fatal error if used on a machine that doesn't implement
setpgrp
(2). Beware: some systems will ignore the
arguments you provide and always do
setpgrp(0, $$)
.
Fortunately, those are the arguments one usually provides. (For better
portability (by some definition), use the
setpgid()
function in
the POSIX module, or if you're really just trying to daemonize your script, consider
the
POSIX::setsid()
function as well.)
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