NAME

       Catalyst::Engine - The Catalyst Engine

SYNOPSIS

       See Catalyst.

DESCRIPTION

METHODS

   $self->finalize_body($c)
       Finalize body.  Prints the response output as blocking stream if it looks like a
       filehandle, otherwise write it out all in one go.  If there is no body in the response, we
       assume you are handling it 'manually', such as for nonblocking style or asynchronous
       streaming responses.  You do this by calling "write" several times (which sends HTTP
       headers if needed) or you close over "$response->write_fh".

       See "write" in Catalyst::Response and "write_fh" in Catalyst::Response for more.

   $self->finalize_cookies($c)
       Create CGI::Simple::Cookie objects from $c->res->cookies, and set them as response
       headers.

   $self->finalize_error($c)
       Output an appropriate error message. Called if there's an error in $c after the dispatch
       has finished. Will output debug messages if Catalyst is in debug mode, or a `please come
       back later` message otherwise.

   $self->finalize_headers($c)
       Allows engines to write headers to response

   $self->finalize_uploads($c)
       Clean up after uploads, deleting temp files.

   $self->prepare_body($c)
       sets up the Catalyst::Request object body using HTTP::Body

   $self->prepare_body_chunk($c)
       Add a chunk to the request body.

   $self->prepare_body_parameters($c)
       Sets up parameters from body.

   $self->prepare_parameters($c)
       Sets up parameters from query and post parameters.  If parameters have already been set up
       will clear existing parameters and set up again.

   $self->prepare_path($c)
       abstract method, implemented by engines.

   $self->prepare_request($c)
   $self->prepare_query_parameters($c)
       process the query string and extract query parameters.

   $self->prepare_read($c)
       Prepare to read by initializing the Content-Length from headers.

   $self->prepare_request(@arguments)
       Populate the context object from the request object.

   $self->prepare_uploads($c)
   $self->write($c, $buffer)
       Writes the buffer to the client.

   $self->read($c, [$maxlength])
       Reads from the input stream by calling "$self->read_chunk".

       Maintains the read_length and read_position counters as data is read.

   $self->read_chunk($c, \$buffer, $length)
       Each engine implements read_chunk as its preferred way of reading a chunk of data. Returns
       the number of bytes read. A return of 0 indicates that there is no more data to be read.

   $self->run($app, $server)
       Start the engine. Builds a PSGI application and calls the run method on the server passed
       in, which then causes the engine to loop, handling requests..

   build_psgi_app ($app, @args)
       Builds and returns a PSGI application closure. (Raw, not wrapped in middleware)

   $self->unescape_uri($uri)
       Unescapes a given URI using the most efficient method available.  Engines such as Apache
       may implement this using Apache's C-based modules, for example.

   $self->finalize_output
       <obsolete>, see finalize_body

   $self->env
       Hash containing environment variables including many special variables inserted by WWW
       server - like SERVER_*, REMOTE_*, HTTP_* ...

       Before accessing environment variables consider whether the same information is not
       directly available via Catalyst objects $c->request, $c->engine ...

       BEWARE: If you really need to access some environment variable from your Catalyst
       application you should use $c->engine->env->{VARNAME} instead of $ENV{VARNAME}, as in some
       environments the %ENV hash does not contain what you would expect.

AUTHORS

       Catalyst Contributors, see Catalyst.pm

COPYRIGHT

       This library is free software. You can redistribute it and/or modify it under the same
       terms as Perl itself.