Hi, I am having trouble with the following piece of code in my reaper subroutine, I am trying to keep a track of the number of child processes that have finished. 
use POSIX "sys_wait_h";
use POSIX "signal_h";
      ...
      ...
      ...
sub reaper {
    my $process_id = waitpid(-1,&WNOHANG);
    if (WIFEXITED($?)) {
        $process_count--;
    }
}

$SIG{CHLD} = \&reaper;

[download]

and i get the follwong error

Argument "CHLD" isn't numeric in entersub at /usr/bin/perl/perl5.005/lib/POSIX.pm line 207.

please help
Waris

In reply to reaper subroutines by jalebie

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