/ 
AnyEvent-SIP-0.002
River stage zero No dependents
/ AnyEvent::SIP

NAME

AnyEvent::SIP - Fusing together AnyEvent and Net::SIP

VERSION

version 0.002

SYNOPSIS

# regular Net::SIP syntax
use AnyEvent::SIP;
use Net::SIP::Simple;

my $stopvar;
my $ua   = Net::SIP::Simple->new(...);
my $call = $uac->invite(
    'you.uas@example.com',
    cb_final => sub { $stopvar++ },
);

# wait for $stopvar, 5 second timeout
$ua->loop( 5, \$stopvar );

# AnyEvent-style
use AnyEvent::SIP;
use Net::SIP::Simple;

my $cv   = AE::cv;
my $ua   = Net::SIP::Simple->new(...);
my $call = $uac->invite(
    'you.uas@example.com',
    cb_final => sub { $cv->send },
);

$cv->recv;

# compat-mode
use AnyEvent::SIP 'compat';
...

DESCRIPTION

This module allows you to use AnyEvent as the event loop (and thus any other supported event loop) for Net::SIP.

Net::SIP::Simple allows you to define the event loop. You can either define it using Net::SIP::Dispatcher::AnyEvent manually or you can simply use AnyEvent::SIP which will automatically set it for you.

# doing it automatically and globally
use AnyEvent::SIP;
use Net::SIP::Simple;

my $cv = AE::cv;
my $ua = Net::SIP::Simple->new(...);
$ua->register( cb_final => sub { $cv->send } );
$cv->recv;

# defining it for a specific object
use Net::SIP::Simple;
use Net::SIP::Dispatcher::AnyEvent;

my $cv = AE::cv;
my $ua = Net::SIP::Simple->(
    ...
    loop => Net::SIP::Dispatcher::AnyEvent->new,
);

$ua->register;
$cv->recv;

You can also call Net::SIP's loop method in order to keep it as close as possible to the original syntax. This will internally use AnyEvent, whether you're using AnyEvent::SIP globally or Net::SIP::Dispatcher::AnyEvent locally.

use AnyEvent::SIP;
use Net::SIP::Simple;

my $stopvar;
my $ua = Net::SIP::Simple->new(...);
$ua->register( cb_final => sub { $stopvar++ } );

# call Net::SIP's event loop runner,
# which calls AnyEvent's instead
$ua->loop( 1, \$stopvar );

COMPATIBILITY

Net::SIP requires dispatchers (event loops) to check their stopvars (condition variables) every single iteration of the loop. In my opinion, it's a wasteful and heavy operation. When it comes to loops like EV, they run a lot of cycles, and it's not very effecient and causes heavy load.

To avoid that, the default mode for AnyEvent::SIP is to set up a timer to check the condition variables. Default interval is: 0.2 seconds.

To configure this, you can set up the interval on import:

use AnyEvent::SIP stopvar_interval => 0.1;
...

If you want to keep AnyEvent::SIP completely compatible with the Net::SIP requirement (which fixes at least one bugfix test I haven't found out why yet), you can add the compat option on import;

use AnyEvent::SIP 'compat';
...

I can't promise not to change any of this.

AUTHOR

Sawyer X <xsawyerx@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Sawyer X.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.