RE: Setting up signal handlers for an object with access to $self

[chromatic]

Why not just make a reference to a subroutine? Here's my take on it:

#!/usr/bin/perl -w

use strict;

sub do_something {
    print "This is what I do.\n";
    exit;
}

$SIG{INT} = \&do_something;

while (1) {}

That's one less layer of indirection and conceptually clearer to me, at least. TIMTOWTDI!

[ZZamboni]

The point is to give the signal handler access to an object. If you simply point the signal handler to a subroutine, you do not have a way of accessing $self, unless it is stored in a class variable. By defining the signal handler with a closure, you can call the signal handler as if it were a method instead of a regular subroutine, therefore giving it access to $self (and the ability to access its methods and data).

[chromatic]

Hey, you're right! Very nice. (The word closure makes it obvious now.)