NAME
    Catalyst::Engine::HTTP::POE - Single-threaded multi-tasking Catalyst
    engine

SYNOPIS
        CATALYST_ENGINE='HTTP::POE' script/yourapp_server.pl
    
        # Prefork 5 children
        CATALYST_POE_MAX_PROC=6 CATALYST_ENGINE='HTTP::POE' script/yourapp_server.pl

DESCRIPTION
    This engine allows Catalyst to process multiple requests in parallel
    within a single process. Much of the internal Catalyst flow now uses POE
    yield calls. Application code will still block of course, but all I/O,
    header processing, and POST body processing is handled asynchronously.

    A good example of the engine's power is the
    Catalyst::Plugin::UploadProgress demo application, which can process a
    file upload as well as an Ajax polling request at the same time in the
    same process.

    This engine requires at least Catalyst 5.67.

RESTART SUPPORT
    As of version 0.05, the -r flag is supported and the server will restart
    itself when any application files are modified.

PREFORKING
    As of version 0.05, the engine is able to prefork a set number of child
    processes to distribute requests. Set the CATALYST_POE_MAX_PROC
    environment variable to the total number of processes you would like to
    run, including the parent process. So, to prefork 5 children, set this
    value to 6. This value may also be set by modifying yourapp_server.pl
    and adding max_proc to the options hash passed to YourApp->run().

DEBUGGING
    To enable trace-level debugging, set the environment variable
    CATALYST_POE_DEBUG.

    At any time you can get a dump of the internal state of the engine by
    sending a USR1 signal to the running process.

EXPERIMENTAL STATUS
    This engine should still be considered experimental and likely has bugs,
    however as it's only intended for development, please use it and report
    bugs.

    The engine has been tested with the UploadProgress demo, the Streaming
    example, and one of my own moderately large applications. It also fully
    passes the Catalyst test suite.

AUTHOR
    Andy Grundman, <andy@hybridized.org>

COPYRIGHT
    This program is free software, you can redistribute it and/or modify it
    under the same terms as Perl itself.

