NAME
    Daemon::Daemonize - A daemonizer

VERSION
    Version 0.001

SYNOPSIS
        use Daemon::Daemonize

        Daemon::Daemonize->daemonize( %options, run => sub {

            # Daemon code in here...

        } )

        # Do some non-daemon stuff here...

    You can also use it in the traditional way, daemonizing the current
    process:

        Daemon::Daemonize->daemonize( %options )

        # Daemon code in here...

    ...and use it to check up on your daemon:

        # In your daemon
        Daemon::Daemonize->write_pidfile( $pidfile )
        $SIG{INT} = sub { Daemon::Daemonize->delete_pidfile( $pidfile ) }

        ... Elsewhere ...

        # Return the pid from $pidfile if it contains a pid AND
        # the process is running (even if you don't own it), 0 otherwise
        my $pid = Daemon::Daemonize->check_pidfile( $pidfile )

        # Return the pid from $pidfile, or undef if the
        # file doesn't exist, is unreadable, etc.
        # This will return the pid regardless of if the process is running
        my $pid = Daemon::Daemonize->read_pidfile( $pidfile )

DESCRIPTION
    Daemon::Daemonize is a toolbox for both daemonizing processes & checking
    up on those processes. It takes inspiration from
    <http://www.clapper.org/software/daemonize/>, MooseX::Daemon,
    Net::Server::Daemon, and more...

    Being new, the API is currently fluid, but shouldn't change too much

METHODS
  Daemon::Daemonize->daemonize( %options )
    Daemonize via the current process, according to %options:

        no_chdir            Don't change directory to '/' (good for avoiding unmount difficulty)
                            Default false

        no_close            Don't close STDIN, STDOUT, STDERR (usually redirected from/to /dev/null)
                            Default false

        chdir <dir>         If given, will change directory to <dir>. This will override no_chdir

        stdout <file>       Open up STDOUT of the process to <file>. This will override no_close

        stderr <file>       Open up STDERR of the process to <file>. This will override no_close

        run <code>          After daemonizing, run the given code and then exit successfully

  Daemon::Daemonize->read_pidfile( $pidfile )
    Return the pid from $pidfile. Return undef if the file doesn't exist, is
    unreadable, etc. This will return the pid regardless of if the process
    is running

    For an alternative, see "check_pidfile"

  Daemon::Daemonize->write_pidfile( $pidfile, [ $pid ] )
    Write the given pid to $pidfile, creating/overwriting any existing file.
    The second argument is optional, and will default to $$ (the current
    process number)

  Daemon::Daemonize->delete_pidfile( $pidfile )
    Unconditionally delete (unlink) $pidfile

  Daemon::Daemonize->check_pidfile( $pidfile )
    Return the pid from $pidfile if it contains a pid AND the process is
    running (even if you don't own it), and 0 otherwise

    This method will always return a number

SEE ALSO
    MooseX::Daemonize

    Proc::Daemon

    Net::Server::Daemonize

AUTHOR
    Robert Krimen, "<rkrimen at cpan.org>"

BUGS
    Please report any bugs or feature requests to "bug-daemon-daemonize at
    rt.cpan.org", or through the web interface at
    <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Daemon-Daemonize>. I
    will be notified, and then you'll automatically be notified of progress
    on your bug as I make changes.

SUPPORT
    You can find documentation for this module with the perldoc command.

        perldoc Daemon::Daemonize

    You can also look for information at:

    *   RT: CPAN's request tracker

        <http://rt.cpan.org/NoAuth/Bugs.html?Dist=Daemon-Daemonize>

    *   AnnoCPAN: Annotated CPAN documentation

        <http://annocpan.org/dist/Daemon-Daemonize>

    *   CPAN Ratings

        <http://cpanratings.perl.org/d/Daemon-Daemonize>

    *   Search CPAN

        <http://search.cpan.org/dist/Daemon-Daemonize/>

ACKNOWLEDGEMENTS
COPYRIGHT & LICENSE
    Copyright 2009 Robert Krimen.

    This program is free software; you can redistribute it and/or modify it
    under the terms of either: the GNU General Public License as published
    by the Free Software Foundation; or the Artistic License.

    See http://dev.perl.org/licenses/ for more information.