Works for me. Are you sure your child is exiting with something other than zero? 

$ cat a.pl
use strict;
use warnings;

use POSIX qw( WNOHANG );

my $pid = fork();

if ($pid == 0) {
   sleep(5);
   exit $ARGV[0];
}

while (waitpid($pid, WNOHANG) == 0) {
   sleep 1;
   print time(), "\n";
}

print "$?\n";

[download]
$ perl a.pl 123
1288161738
1288161739
1288161740
1288161741
1288161742
31488

[download]

(31488 == 123 * 256)

In reply to Re: fork child exist value by ikegami
in thread fork child exist value by tart

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