phpMan > man > Net::Server::Fork

NAME
    Net::Server::Fork - Net::Server personality

SYNOPSIS
        use base qw(Net::Server::Fork);

        sub process_request {
            #...code...
        }

        __PACKAGE__->run();

DESCRIPTION
    Please read the pod on Net::Server first. This module is a personality, or extension, or sub
    class, of the Net::Server module.

    This personality binds to one or more ports and then waits for a client connection. When a
    connection is received, the server forks a child. The child handles the request and then closes.

    With the exception of parent/child signaling, this module will work (with basic functionality)
    on Win32 systems.

ARGUMENTS
    check_for_dead
        Number of seconds to wait before looking for dead children. This only takes place if the
        maximum number of child processes (max_servers) has been reached. Default is 60 seconds.

    max_servers
        The maximum number of children to fork. The server will not accept connections until there
        are free children. Default is 256 children.

    max_dequeue
        The maximum number of dequeue processes to start. If a value of zero or undef is given, no
        dequeue processes will be started. The number of running dequeue processes will be checked
        by the check_for_dead variable.

    check_for_dequeue
        Seconds to wait before forking off a dequeue process. It is intended to use the dequeue
        process to take care of items such as mail queues. If a value of undef is given, no dequeue
        processes will be started.

CONFIGURATION FILE
    See Net::Server.

PROCESS FLOW
    Process flow follows Net::Server until the post_accept phase. At this point a child is forked.
    The parent is immediately able to wait for another request. The child handles the request and
    then exits.

HOOKS
    The Fork server has the following hooks in addition to the hooks provided by the Net::Server
    base class. See Net::Server

    "$self->pre_accept_hook()"
        This hook occurs just before the accept is called.

    "$self->post_accept_hook()"
        This hook occurs in the child after the accept and fork.

    "$self->run_dequeue()"
        This hook only gets called in conjunction with the check_for_dequeue setting.

HOT DEPLOY
    Since version 2.000, the Fork server has accepted the TTIN and TTOU signals. When a TTIN is
    received, the max_servers is increased by 1. If a TTOU signal is received the max_servers is
    decreased by 1. This allows for adjusting the number of handling processes without having to
    restart the server.

AUTHOR
    Paul Seamons <paul AT seamons.com>

    Rob Brown <bbb AT cpan.org>

SEE ALSO
    Please see also Net::Server::INET, Net::Server::PreFork, Net::Server::MultiType,
    Net::Server::SIG Net::Server::Single