This is ActiveState Perl v5.10.0 on Windows:
use warnings;
use strict;

use POSIX;

my $skip_end = 0;

END { print "this should print once\n" }

if (fork)
{
    print "parent\n";
    sleep 1;
}
else
{
    print "child\n";
    $skip_end ? _exit(0) : exit(0);
}

print "last line of program\n";

[download]

Output when $skip_end == 0:
child
this should print once
parent
last line of program
this should print once

[download]

OK. Now I want to skip the END block for the "child". Output when $skip_end == 1:
parent
child

[download]

The output I am expecting:
child
parent
last line of program
this should print once

[download]

I know that POSIX::_exit() stops perl from doing END blocks (among other things that I'm fine with). But it's getting in the way of other threads.

Another side question: How can I detect if code is running in a fork-emulation thread?

In reply to How to skip END blocks with threads? by repellent

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