IPC and counters

[Philip Newton]

On Wed, Oct 15, 2008 at 02:01, Simon Wistow <simon at thegestalt.org> wrote:
>     Child:
>
>     my ($msg, $sem_id)  = get_message();
>     my $sem = IPC::Semaphore->new($sem_id);
>     if (0 == $sem->op(0, -1, IPC_NOWAIT)) {
>         do_something($message);
>     }
>
>     # If we're the last then clean up
>     if (EAGAIN == $sem->op(1,-1, IPC_NOWAIT)) {
>         $sem->remove;
>     }

Does the module really export no constants for this "0, 1, -1" stuff?
It all seems rather error-prone to me.

Cheers,
-- 
Philip Newton <philip.newton at gmail.com>