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IO::Async::Signal.3pm

NAME

"IO::Async::Signal" - event callback on receipt of a POSIX signal

SYNOPSIS

  use IO::Async::Signal;
 
  use IO::Async::Loop;
  my $loop = IO::Async::Loop->new();
 
  my $signal = IO::Async::Signal->new(
     name => "HUP",
 
     on_receipt => sub {
         print "I caught SIGHUP\n";
     },
  );
 
  $loop->add( $signal );
 
  $loop->loop_forever;
 
 

DESCRIPTION

This module provides a class of "IO::Async::Notifier" which invokes its callback when a particular POSIX signal is received.

Multiple objects can be added to a "Loop" that all watch for the same signal. The callback functions will all be invoked, in no particular order.

PARAMETERS

The following named parameters may be passed to "new" or "configure":

name => STRING

The name of the signal to watch. This should be a bare name like "TERM". Can only be given at construction time.

on_receipt => CODE

CODE reference to callback to invoke when the signal is received.

Once constructed, the "Signal" will need to be added to the "Loop" before it will work.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>