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=head1 NAME |
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AnyEvent::Impl::Glib - AnyEvent adaptor for Glib |
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=head1 SYNOPSIS |
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use AnyEvent; |
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use Glib; |
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# this module gets loaded automatically as required |
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=head1 DESCRIPTION |
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This module provides transparent support for AnyEvent. You don't have to |
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do anything to make Glib work with AnyEvent except by loading Glib before |
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creating the first AnyEvent watcher. |
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Glib is probably the most inefficient event loop that has ever seen the |
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light of the world: Glib not only scans all its watchers (really, ALL |
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of them, whether I/O-related, timer-related or not) during each loop |
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iteration, it also does so multiple times and rebuilds the poll list for |
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the kernel each time again, dynamically even. |
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If you create many watchers (as in: more than two), you might consider one |
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of the L<Glib::EV>, L<EV::Glib> or L<Glib::Event> modules that map Glib to |
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other, more efficient, event loops. |
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This module uses the default Glib main context for all it's watchers. |
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=cut |
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package AnyEvent::Impl::Glib; |
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no warnings; |
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use strict; |
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use Glib (); |
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our $maincontext = Glib::MainContext->default; |
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sub io { |
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my ($class, %arg) = @_; |
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my $self = bless \%arg, $class; |
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my $rcb = \$self->{cb}; |
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my @cond; |
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# some glibs need hup, others error with it, YMMV |
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push @cond, "in", "hup" if $self->{poll} eq "r"; |
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push @cond, "out", "hup" if $self->{poll} eq "w"; |
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$self->{source} = add_watch Glib::IO fileno $self->{fh}, \@cond, sub { |
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$$rcb->(); |
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! ! $$rcb |
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}; |
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$self |
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} |
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sub timer { |
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my ($class, %arg) = @_; |
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my $self = bless \%arg, $class; |
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my $cb = $self->{cb}; |
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$self->{source} = add Glib::Timeout $self->{after} * 1000, sub { |
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$cb->(); |
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}; |
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$self |
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} |
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sub DESTROY { |
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my ($self) = @_; |
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remove Glib::Source delete $self->{source} if $self->{source}; |
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# need to undef $cb because we hold references to it |
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$self->{cb} = undef; |
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} |
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sub one_event { |
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$maincontext->iteration (1); |
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} |
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1; |
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=head1 SEE ALSO |
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L<AnyEvent>, L<Glib>. |
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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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