hi,

i'm experiencing something strange here, maybe you guys can help me. that's the code:

#!/usr/bin/perl
use strict;
use POSIX ":sys_wait_h";
sub REAPER { 1 until waitpid(-1, WNOHANG) == -1 }
$SIG{CHLD} = \&REAPER;
my $run = 0;
while (1) {
    my $pid = fork;
    if (defined $pid && $pid == 0) {
        # child
        my $gna;
            # demo workload, could be everything
            for ("aaaaa" .. "bbbbb") {
             $gna = uc $_;
        }
        exit;
    }
    else {
        sleep 1;
        $run++;
        print "\n$run\n";
    }
}

[download]

my approach was to create a parent process which increments the $run every second, regardless of the workload done by the child-process. unfortunately that doesn't work. it seems as if there was no sleep. can you help? what am i doing wrong?

everything i want is a parent that counts from 1 to whatever every second and a child to do the dirty work.

thanks in advance!

In reply to fork() doesn't care about my sleep()? by ap0calypse

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