NAME
    Win32::ServiceManager - Manage Windows Services

VERSION
    version 0.001001

SYNOPSIS
     use Win32::ServiceManager;
     use Path::Class 'file';

     my $dir = file(__FILE__)->parent->absolute;
     my $sc = Win32::ServiceManager->new(
        nssm_path => $dir->file(qw( cgi exe nssm.exe ))->stringify,
     );

     $sc->create_service(
        name => 'LynxWebServer01',
        display => 'Lynx Web Server 1',
        description => 'Handles Web Requests on port 3001',
        command =>
           $dir->file(qw( App script server.pl ))->stringify .
              ' -p 3001',
     );
     $sc->start_service('LynxWebServer01', { use_sc => 0 });
     $sc->stop_service('LynxWebServer01');
     $sc->delete_service('LynxWebServer01');

METHODS
  create_service
     $sc->create_service(
        name        => 'GRWeb1',
        display     => 'Giant Robot Web Worker 1',
        description => 'Handles Giant Robot Web Requests on port 3001',
        use_perl    => 1,
        use_nssm    => 1,
        command     => 'C:\code\GR\script\server.pl -p 3001',
        depends     => [qw(MSSQL Apache2.4)],
     );

    Takes a hash of the following arguments:

    * "name"

      (required) The name of the service (which is used when doing a "sc
      start" etc.)

    * "use_nssm"

      (defaults to the value of use_nssm_default) Set this to start your
      service with "nssm"

    * "use_perl"

      (defaults to the value of use_perl_default) Set this to create perl
      services. Uses $^X. If for some reason you want to use a different
      perl you will have to set "use_perl" to false.

    * "display"

      (required) The display name to give the service

    * "description"

      (optional) The description to give the service.

    * "command"

      (required) The command that is effectively your service

    * "args"

      (optional) Arguments that get passed to the command above. XXX: do
      these even make sense?

    * "depends"

      (optional) List of service names that must be started for your service
      to function. You may either pass a string or an array ref. A string
      gets passed on directly, the array reference gets properly joined
      together.

    Note: there are many options that "sc" can use to create and modify
    services. I have taken the few that we use in my project and forced the
    rest upon you, gentle user. For example, whether you like it or not
    these services will restart on failure and start automatically on boot.
    I am completely willing to add more options, but in 4 distinct projects
    we have never needed more than the above. Patches Welcome!

  start_service
     $sc->start_service('GRWeb1', { use_sc => 1 });

    Starts a service with the passed name. The second argument is an
    optional hashref with the following options:

    * "usc_sc"

      (defaults to the value of "use_sc_default") Set this to false if you
      want to block until the service starts.

  stop_service
     $sc->stop_service('GRWeb1', { use_sc => 1 });

    Stops a service with the passed name. The second argument is an optional
    hashref with the following options:

    * "usc_sc"

      (defaults to the value of "use_sc_default") Set this to false if you
      want to block until the service stops.

  restart_service
     $sc->restart_service('GRWeb1', { use_sc => 1 });

    Stops and starts a service with the passed name. The second argument is
    an optional hashref with the following options:

    * "usc_sc"

      (defaults to the value of "use_sc_default") Set this to false if you
      want to block until the service starts. (Note that the blocking until
      the service has stopped is required.)

ATTRIBUTES
  use_nssm_default
    The default value of "use_nssm" for the "create_service" method.

  use_perl_default
    The default value of "use_perl" for the "create_service" method.

  use_sc_default
    Set this to true (default) to use "sc" to start or stop services. "sc"
    is faster, but asyncronous. Sometimes using ye olde "net" is better as
    it allows for restarts, for example.

  nssm_path
    Set this to the path to nssm (default is just "nssm_64.exe", or
    "nssm_32.exe" if you set "nssm_bits" to 32).

  nssm_bits
    "nssm" comes in both 32 and 64 bit flavors. This specifies when of the
    bundled "nssm" binaries to use. (default is 64)

nssm
    nssm <http://nssm.cc> is a handy service wrapper for Windows. Instead of
    adding hooks directly to your program to handly Windows service signals,
    this program runs your program for you and intercepts the signals and
    acts appropriately. It is open source and clocks in at less than two
    megabytes of RAM. The code is at "git://git.nssm.cc/nssm/nssm.git".

PRO-TIPS
    The best way to use this module is to subclass it for your software. So
    for example we have a subclass that looks something like the following:

     package Lynx::ServiceManager

     use Moo;
     extends 'Win32::ServiceManager';

     our $DIR = file(__FILE__)->parent->absolute;
     sub create_catalyst_service {
        my ($self, $i) = @_;

        $self->create_service(
           name => "LynxWebServer$i",
           display => "Lynx Web Server $i",
           description => 'Handles Web Requests on port 3001',
           command =>
              $dir->file(qw( App script server.pl ))->stringify .
                 " -p 300$i",
        );

     }

     sub start_catalyst_service { $_[0]->start_service("LynxWebServer$_[1]", $_[2]) }

     ...

    The above makes it very easy for use to start, stop, add, and remove
    catalyst services.

CAVEAT LECTOR
    I have used this at work and am confident in it, but it has only been
    used on Windows Server 2008. The tests can do no better than ensure the
    generated strings are as expected, instead of ensuring that a service
    was correctly created or started or whatever.

    Additionally, in my own work when I get an error from "sc" I just report
    it and move forward. Because of this I have done very little to make
    exceptions useful. I am open to making them objects but again, I do not
    need that myself, so Patches Welcome!

AUTHOR
    Arthur Axel "fREW" Schmidt <frioux+cpan@gmail.com>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2013 by Arthur Axel "fREW" Schmidt.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.

