| 1 |
=head1 NAME |
| 2 |
|
| 3 |
AnyEvent::Impl::Glib - AnyEvent adaptor for Glib |
| 4 |
|
| 5 |
=head1 SYNOPSIS |
| 6 |
|
| 7 |
use AnyEvent; |
| 8 |
use Glib; |
| 9 |
|
| 10 |
# this module gets loaded automatically as required |
| 11 |
|
| 12 |
=head1 DESCRIPTION |
| 13 |
|
| 14 |
This module provides transparent support for AnyEvent. You don't have to |
| 15 |
do anything to make Glib work with AnyEvent except by loading Glib before |
| 16 |
creating the first AnyEvent watcher. |
| 17 |
|
| 18 |
Glib is probably the most inefficient event loop that has ever seen the |
| 19 |
light of the world: Glib not only scans all its watchers (really, ALL |
| 20 |
of them, whether I/O-related, timer-related or not) during each loop |
| 21 |
iteration, it also does so multiple times and rebuilds the poll list for |
| 22 |
the kernel each time again, dynamically even. |
| 23 |
|
| 24 |
If you create many watchers (as in: more than two), you might consider one |
| 25 |
of the L<Glib::EV>, L<EV::Glib> or L<Glib::Event> modules that map Glib to |
| 26 |
other, more efficient, event loops. |
| 27 |
|
| 28 |
This module uses the default Glib main context for all it's watchers. |
| 29 |
|
| 30 |
=cut |
| 31 |
|
| 32 |
package AnyEvent::Impl::Glib; |
| 33 |
|
| 34 |
no warnings; |
| 35 |
use strict; |
| 36 |
|
| 37 |
use Glib (); |
| 38 |
|
| 39 |
our $maincontext = Glib::MainContext->default; |
| 40 |
|
| 41 |
sub io { |
| 42 |
my ($class, %arg) = @_; |
| 43 |
|
| 44 |
my $cb = $arg{cb}; |
| 45 |
|
| 46 |
my @cond; |
| 47 |
# some glibs need hup, others error with it, YMMV |
| 48 |
push @cond, "in", "hup" if $arg{poll} eq "r"; |
| 49 |
push @cond, "out", "hup" if $arg{poll} eq "w"; |
| 50 |
|
| 51 |
my $source = add_watch Glib::IO fileno $arg{fh}, \@cond, sub { |
| 52 |
&$cb; |
| 53 |
1 |
| 54 |
}; |
| 55 |
|
| 56 |
bless \\$source, $class |
| 57 |
} |
| 58 |
|
| 59 |
sub timer { |
| 60 |
my ($class, %arg) = @_; |
| 61 |
|
| 62 |
my $cb = $arg{cb}; |
| 63 |
my $ival = $arg{interval} * 1000; |
| 64 |
|
| 65 |
my $source; $source = add Glib::Timeout $arg{after} * 1000, |
| 66 |
$ival ? sub { |
| 67 |
remove Glib::Source $source; |
| 68 |
$source = add Glib::Timeout $ival, sub { &$cb; 1 }; |
| 69 |
&$cb; |
| 70 |
0 |
| 71 |
} |
| 72 |
: sub { &$cb; 0 }; |
| 73 |
|
| 74 |
bless \\$source, $class |
| 75 |
} |
| 76 |
|
| 77 |
sub DESTROY { |
| 78 |
remove Glib::Source $${$_[0]}; |
| 79 |
} |
| 80 |
|
| 81 |
sub one_event { |
| 82 |
$maincontext->iteration (1); |
| 83 |
} |
| 84 |
|
| 85 |
1; |
| 86 |
|
| 87 |
=head1 SEE ALSO |
| 88 |
|
| 89 |
L<AnyEvent>, L<Glib>. |
| 90 |
|
| 91 |
=head1 AUTHOR |
| 92 |
|
| 93 |
Marc Lehmann <schmorp@schmorp.de> |
| 94 |
http://home.schmorp.de/ |
| 95 |
|
| 96 |
=cut |
| 97 |
|
