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package IO::Async::Loop::KQueue; |
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BEGIN { |
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$IO::Async::Loop::KQueue::VERSION = '0.02'; |
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} |
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use strict; |
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use warnings; |
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use Carp; |
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use IO::KQueue; |
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use base qw( IO::Async::Loop ); |
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use constant API_VERSION => '0.33'; |
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=head1 NAME |
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IO::Async::Loop::KQueue - use C with C |
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=head1 VERSION |
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Version 0.02 |
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=head1 SYNOPSIS |
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Like L for Linux, This module provides native loop management for |
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BSD like operating systems that have KQueue present, using C. |
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use IO::Async::Loop::KQueue; |
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my $loop = IO::Async::Loop::KQueue->new(); |
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$loop->add( IO::Async::Signal->new( |
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name => '', |
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on_receipt => sub { ... }, |
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) ); |
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=head1 METHODS |
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=head2 new |
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=cut |
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sub new |
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{ |
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my $class = shift; |
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my ( %args ) = @_; |
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my $kq = IO::KQueue->new() or croak "Cannot create kqueue handle - $!"; |
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my $self = $class->SUPER::__new( %args ); |
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$self->{kqueue} = $kq; |
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return $self; |
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} |
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=head2 $count = $loop->loop_once( $timeout ) |
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This method calls the kevent method, using the given timeout and processes |
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the results of that call. It returns the total number of C |
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callbacks invoked. |
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=cut |
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sub loop_once |
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{ |
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my $self = shift; |
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my ( $timeout ) = @_; |
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$self->_adjust_timeout( \$timeout ); |
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my $msec = defined $timeout ? $timeout * 1000 : -1; |
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my @events = $self->{kqueue}->kevent($msec); |
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my $count = 0; |
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local $self->{cancellations} = \my %cancellations; |
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foreach my $ev ( @events ) |
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{ |
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next if $cancellations{$ev->[KQ_FILTER]."/".$ev->[KQ_IDENT]}; |
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$ev->[KQ_UDATA]->(); |
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$count++; |
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} |
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$count += $self->_manage_queues; |
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return $count; |
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} |
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sub watch_io |
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{ |
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my $self = shift; |
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my %params = @_; |
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my $kqueue = $self->{kqueue}; |
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my $handle = $params{handle}; |
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my $fd = $handle->fileno; |
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if( my $cb = $params{on_read_ready} ) { |
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$kqueue->EV_SET($fd, EVFILT_READ, EV_ADD, 0, 0, $cb); |
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} |
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if( my $cb = $params{on_write_ready} ) { |
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$kqueue->EV_SET($fd, EVFILT_WRITE, EV_ADD, 0, 0, $cb); |
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} |
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} |
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sub unwatch_io |
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{ |
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my $self = shift; |
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my %params = @_; |
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my $kqueue = $self->{kqueue}; |
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my $handle = $params{handle}; |
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my $fd = $handle->fileno; |
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# Just ignore errors from EV_SET; doesn't matter if we fail to delete |
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# because it wasn't there |
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if( $params{on_read_ready} ) { |
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eval { $kqueue->EV_SET($fd, EVFILT_READ, EV_DELETE) }; |
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$self->{cancellations}{EVFILT_READ."/$fd"}++ if $self->{cancellations}; |
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} |
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if( $params{on_write_ready} ) { |
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eval { $kqueue->EV_SET($fd, EVFILT_WRITE, EV_DELETE) }; |
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$self->{cancellations}{EVFILT_WRITE."/$fd"}++ if $self->{cancellations}; |
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} |
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} |
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135
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=head1 AUTHOR |
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Squeeks, C<< >> |
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=head1 BUGS |
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Please report any bugs or feature requests to C, or through |
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the web interface at L. I will be notified, and then you'll |
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automatically be notified of progress on your bug as I make changes. |
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=head1 SUPPORT |
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You can find documentation for this module with the perldoc command. |
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149
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perldoc IO::Async::Loop::KQueue |
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151
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You can also look for information at: |
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153
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=over 4 |
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=item * RT: CPAN's request tracker |
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L |
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159
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=item * AnnoCPAN: Annotated CPAN documentation |
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L |
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=item * CPAN Ratings |
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L |
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=item * Search CPAN |
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L |
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=back |
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174
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=head1 ACKNOWLEDGEMENTS |
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Paul Evans (LeoNerd) for doing all the hard work. |
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=head1 LICENSE AND COPYRIGHT |
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180
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Copyright 2010 Squeeks. |
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182
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This program is free software; you can redistribute it and/or modify it |
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under the terms of either: the GNU General Public License as published |
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by the Free Software Foundation; or the Artistic License. |
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See http://dev.perl.org/licenses/ for more information. |
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=cut |
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1; # End of IO::Async::Loop::KQueue |