thr.pl


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#!/usr/bin/perl 
use strict;
use warnings;
use threads;
use Glib;
use Thread::Queue::Event;
use Thread::Queue::Event::Glib;
 
=head1 Signaling across threads to a Glib loop
 
Looks like the best way is to use a pipe
 
=cut
 
my $q=Thread::Queue::Event->new()->with_role('Glib');
my $q2=Thread::Queue::Event->new();
 
threads->create(
    sub{
        print "(1) sleeping\n";
        sleep 2;
        print "(1) sending boo\n";
        $q->enqueue('boo');
        sleep 2;
        threads->create(
            sub{
                print "(2) inserting bar & foo\n";
                $q->insert(0,'bar');
                $q->insert(1,'foo');
                print "(2) signaling\n";
                $q->signal();
                print "(2) signaling\n";
                $q->signal();
            });
        sleep 2;
        print "(1) waiting for command\n";
        my $cmd=$q2->dequeue;
        print "(1) got $cmd\n";
        print "(1) sending quit";
        $q->enqueue('quit');
});
 
my $loop=Glib::MainLoop->new();
$q->add_watch(sub{
                  print "(m) waking up\n";
                  my $foo=$q->dequeue();
                  print "(m) got $foo\n";
                  if ($foo eq 'quit') {
                      print "(m) quitting\n";
                      $loop->quit;
                  }
                  elsif ($foo eq 'foo') {
                      print "(m) sending command\n";
                      $q2->enqueue('the command');
                      print "(m) sent command\n";
                  }
                  return Glib::SOURCE_CONTINUE;
              },
          );
$loop->run;