Sawyer X > AnyEvent-SIP > AnyEvent::SIP

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Module Version: 0.002   Source  

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.

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