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=head1 NAME |
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AnyEvent::BDB - truly asynchronous berkeley db access |
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=head1 SYNOPSIS |
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use AnyEvent::BDB; |
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use BDB; |
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# can now use any of the requests your BDB module supports |
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# as long as you use an event loop supported by AnyEvent. |
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=head1 DESCRIPTION |
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This module is an L<AnyEvent> user, you need to make sure that you use and |
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run a supported event loop. |
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Loading this module will install the necessary magic to seamlessly |
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integrate L<BDB> into L<AnyEvent>, i.e. you no longer need to concern |
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yourself with calling C<BDB::poll_cb> or any of that stuff (you still |
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can, but this module will do it in case you don't). |
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The AnyEvent watcher can be disabled by executing C<undef |
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$AnyEvent::BDB::WATCHER>. Please notify the author of when and why you |
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think this was necessary. |
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=cut |
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package AnyEvent::BDB; |
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use strict; |
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no warnings; |
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use AnyEvent (); |
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use BDB (); |
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use base Exporter::; |
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our $VERSION = '1.0'; |
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our $WATCHER; |
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$WATCHER = AnyEvent::post_detect { |
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if ($AnyEvent::MODEL eq "AnyEvent::Impl::EV") { |
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$WATCHER = EV::io (BDB::poll_fileno, &EV::READ, \&BDB::poll_cb); |
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} else { |
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our $FH; open $FH, "<&=" . BDB::poll_fileno; |
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$WATCHER = AnyEvent->io (fh => $FH, poll => 'r', cb => \&BDB::poll_cb); |
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} |
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}; |
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BDB::_on_next_submit \&AnyEvent::detect; |
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=head1 SEE ALSO |
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L<AnyEvent>, L<Coro::BDB> (for a more natural syntax). |
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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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