NAME

MP3::Daemon::PIMP - the daemon for Pip's Intergallactive Moosex Plaqueluster

SYNOPSIS

Fork a daemon

MP3::Daemon::PIMP->spawn($socket_path);

Start a server, but don't fork into background

my $mp3d = MP3::Daemon::PIMP->new($socket_path);
$mp3d->main;

You're a client wanting a socket to talk to the daemon

my $client = MP3::Daemon::PIMP->client($socket_path);
print $client @command;

REQUIRES

MP3::Daemon

This is the base class. It provides the daemonization and event loop.

DESCRIPTION

MP3::Daemon::PIMP provides a server that controls mpg123. Clients such as mp3(1p) may connect to it and request the server to manipulate its internal playlists.

METHODS

Server-related Methods

MP3::Daemon::PIMP relies on unix domain sockets to communicate. The socket requires a place in the file system which is referred to as $socket_path in the following descriptions.

new $socket_path

This instantiates a new MP3::Daemon::PIMP.

my $mp3d = MP3::Daemon::PIMP->new("$ENV{HOME}/.mp3/mp3_socket");

main

This starts the event loop. This will be listening to the socket for client requests while polling mpg123 in times of idleness. This method will never return.

$mp3d->main;

spawn $socket_path

This combines new() and main() while also forking itself into the background. The spawn method will return immediately to the parent process while the child process becomes an MP3::Daemon::PIMP that is waiting for client requests.

MP3::Daemon::PIMP->spawn("$ENV{HOME}/.mp3/mp3_socket");

client $socket_path

This is a factory method for use by clients who want a socket to communicate with a previously instantiated MP3::Daemon::PIMP.

my $client = MP3::Daemon::PIMP->client("$ENV{HOME}/.mp3/mp3_socket");

Client API

These methods are usually not invoked directly. They are invoked when a client makes a request. The protocol is very simple. The first line is the name of the method. Each argument to the method is specified on successive lines. A final blank line signifies the end of the request.

0   method name
1   $arg[0]
.   ...
n-1 $arg[n-2]
n   /^$/

Example:

print $client <<REQUEST;
play
5

REQUEST

This plays $self->{playlist}[5].

command

command

COPYLEFT

Copyleft (c) 2001 pip. All rights reversed. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR

pip <pip@binq.org>

SEE ALSO

mpg123(1), Audio::Play::MPG123(3pm), pimp(1p), mpg123sh(1p), mp3(1p)