^CSIGINT handler "my_handler" not defined. Sigtrap is not able to find handler function.

[girijaj]

Hi all, Anyone could explain why my sigtrap is not able to see handler function? I am getting "^CSIGINT handler "my_handler" not defined." error.

use sigtrap 'handler' => \&my_handler, 'normal-signals';

and I have declared my_handler as:

sub my_handler {
  die "Caught signal $! \n";
}

Please help me I am not getting it what to do. thanks --girija

[Corion]

Is that a typo? You use my_handler and my_hanlder.

use sigtrap 'handler' => \&my_handler, 'normal-signals';
sub my_hanlder {
    die "Caught signal $! \n";
}

[girijaj]

Thanks for the response. yes it was typo, i fixed it. I think its a scope of my program. Somehow I have to make this handler function visible to sigtrap. But I am not getting it how to do that.

[jellisii2]

How do I post a question effectively? and Use Strict and Warnings, please. :)

[Mr. Muskrat]

You need to provide more context if you want help but reduce it down to a minimal example that still does not work. Here's my minimal yet working example:

#!/bin/env perl
use strict;
use warnings;
use sigtrap 'handler' => \&my_handler, 'normal-signals';

while ( 1 )
{
    print "running...\n";
    sleep 30;
}

sub my_handler
{
    die "Caught signal $!\n";
}