Manual Reference Pages - HTTP::PROXY::ENGINE (3)
HTTP::Proxy::Engine - Generic child process manager engine for HTTP::Proxy
# use the default engine for your system
my $proxy = HTTP::Proxy->new();
# choose one
my $proxy = HTTP::Proxy->new( engine => Old );
The HTTP::Proxy::Engine class is a front-end to actual proxy
The role of an engine is to implement the main fork+serve loop
with all the required bookkeeping. This is also a good way to
test various implementation and/or try out new algorithms
without too much difficulties.
Create a new engine. The parameter engine is used to decide which
kind of engine will be created. Other parameters are passed to the
This method also implement the subclasses constructor (they obviously
do not need the engine parameter).
CREATING YOUR OWN ENGINE
It is possible to create ones own engine, by creating
a simple subclass of HTTP::Proxy::Engine with the following
A subclass may also define a %defaults hash (with our) that
contains the default values for the fields used internaly.
This method should handle any initialisation required when the
This method is the main loop of the master process.
It defines how child processes are forked, checked and killed.
The engine MUST have a run() method, and it will be called again
and again until the proxy exits.
$self->proxy->daemon returns the listening socket that can accept()
connections. The child must call $self->proxy->serve_connections()
on the returned socket to handle actual TCP connections.
This optional method should handle any cleanup procedures when the
engine stops (typically when the main proxy process is killed).
METHODS PROVIDED TO SUBCLASSES
HTTP::Proxy::Engine provides the following methods to its
Return the HTTP::Proxy object that runs the engine.
Get or set the maximum number of TCP clients, that is to say
the maximum number of forked child process.
Some engines may understand a value of 0 as do not fork at all.
This is what HTTP::Proxy::Engine::Legacy does.
make_accessors( @names )
Create accessors named after @names in the subclass package.
All accessors are read/write. This is a utility method.
<B>This is a class method.B>
Philippe BooK Bruhat, <email@example.com>.
Copyright 2005-2015, Philippe Bruhat.
This module is free software; you can redistribute it or modify it under
the same terms as Perl itself.
|perl v5.20.3 ||HTTP::PROXY::ENGINE (3) ||2015-06-16 |
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