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=head1 NAME |
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AnyEvent::Fork::Template - generate a template process from the main program |
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=head1 SYNOPSIS |
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# only usable in the main program |
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# preload some harmless modules (just examples) |
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use Other::Module; |
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use Some::Harmless::Module; |
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use My::Worker::Module; |
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# now fork and keep the template |
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use AnyEvent::Fork::Template; |
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# now do less harmless stuff (just examples) |
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use Gtk2 -init; |
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my $w = AE::io ...; |
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# and finally, use the template to run some workers |
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$AnyEvent::Fork::Template->fork->run ("My::Worker::Module::run_worker", sub { ... }); |
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=head1 DESCRIPTION |
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By default, this module forks when it is used the first time and stores |
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the resulting L<AnyEvent::Fork> object in the C<$AnyEvent::Fork::Template> |
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variable (mnemonic: same name as the module itself). |
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It must only be used in the main program, and only once. Other than that, |
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the only requirement is that you can handle the results of a fork at that |
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time, i.e., when you use this module after AnyEvent has been initialised, |
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or use it after you opened some window with Gtk2 or Tk for example then |
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then you can't easily use these modules in the forked process. Choosing |
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the place to use this module wisely is key. |
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There is never a need for this module - you can always create a new empty |
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process and loading the modules you need into it. |
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=cut |
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package AnyEvent::Fork::Template; |
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use AnyEvent::Fork (); |
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# this does not work on win32, due to the atrociously bad fake perl fork |
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die "AnyEvent::Fork::Template does not work on WIN32 due to bugs in perl\n" |
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if $^O eq "MSWin32"; |
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$AnyEvent::Fork::Template = AnyEvent::Fork->_new_fork ("AnyEvent::Fork::Template"); |
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=head1 AUTHOR |
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Marc Lehmann <schmorp@schmorp.de> |
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http://home.schmorp.de/ |
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=cut |
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1 |
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