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1 | =head1 NAME |
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2 | |
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3 | AnyEvent::Impl::Glib - AnyEvent adaptor for Glib |
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4 | |
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5 | =head1 SYNOPSIS |
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6 | |
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7 | use AnyEvent; |
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8 | use Glib; |
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9 | |
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10 | # this module gets loaded automatically as required |
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11 | |
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12 | =head1 DESCRIPTION |
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13 | |
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14 | This module provides transparent support for AnyEvent. You don't have to |
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15 | do anything to make Glib work with AnyEvent except by loading Glib before |
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16 | creating the first AnyEvent watcher. |
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17 | |
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18 | Glib is probably the most inefficient event loop that has ever seen the |
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19 | light of the world: Glib not only scans all its watchers (really, ALL of |
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20 | them, whether I/O-related, timer-related or what not) during each loop |
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21 | iteration, it also does so multiple times and rebuilds the poll list for |
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22 | the kernel each time again, dynamically even. |
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23 | |
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24 | On the positive side, and most importantly, Glib generally works |
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25 | correctly, no quarrels there. |
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26 | |
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27 | If you create many watchers (as in: more than two), you might consider one |
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28 | of the L<Glib::EV>, L<EV::Glib> or L<Glib::Event> modules that map Glib to |
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29 | other, more efficient, event loops. |
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30 | |
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31 | This module uses the default Glib main context for all its watchers. |
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32 | |
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33 | =cut |
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34 | |
| 1 | package AnyEvent::Impl::Glib; |
35 | package AnyEvent::Impl::Glib; |
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36 | |
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37 | no warnings; |
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38 | use strict; |
| 2 | |
39 | |
| 3 | use Glib (); |
40 | use Glib (); |
| 4 | |
41 | |
| 5 | my $maincontext = Glib::MainContext->default; |
42 | our $mainloop = Glib::MainContext->default; |
| 6 | |
43 | |
| 7 | sub new_from_fh { |
44 | sub io { |
| 8 | my ($class, $fh) = @_; |
45 | my ($class, %arg) = @_; |
| 9 | bless { fh => $fh }, $class; |
46 | |
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47 | my $cb = $arg{cb}; |
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48 | |
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49 | my @cond; |
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50 | # some glibs need hup, others error with it, YMMV |
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51 | push @cond, "in", "hup" if $arg{poll} eq "r"; |
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52 | push @cond, "out", "hup" if $arg{poll} eq "w"; |
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53 | |
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54 | my $source = add_watch Glib::IO fileno $arg{fh}, \@cond, sub { &$cb; 1 }; |
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55 | bless \\$source, $class |
| 10 | } |
56 | } |
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57 | |
| 12 | sub cb { |
58 | sub timer { |
| 13 | my ($self, $cb) = @_; |
59 | my ($class, %arg) = @_; |
| 14 | $self->{cb} = $cb; |
60 | |
| 15 | $self; |
61 | my $cb = $arg{cb}; |
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62 | my $ival = $arg{interval} * 1000; |
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63 | |
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64 | my $source; $source = add Glib::Timeout $arg{after} * 1000, |
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65 | $ival ? sub { |
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66 | remove Glib::Source $source; |
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67 | $source = add Glib::Timeout $ival, sub { &$cb; 1 }; |
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68 | &$cb; |
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69 | 0 |
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70 | } |
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71 | : sub { &$cb; 0 }; |
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72 | |
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73 | bless \\$source, $class |
| 16 | } |
74 | } |
| 17 | |
75 | |
| 18 | sub poll { |
76 | sub idle { |
| 19 | my ($self, $r, $w, $e) = @_; |
77 | my ($class, %arg) = @_; |
| 20 | |
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| 21 | remove Glib::Source delete $self->{source} if $self->{source}; |
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| 22 | |
78 | |
| 23 | my @cond; |
79 | my $cb = $arg{cb}; |
| 24 | push @cond, "in" if $r; |
80 | my $source = add Glib::Idle sub { &$cb; 1 }; |
| 25 | push @cond, "out" if $w; |
81 | bless \\$source, $class |
| 26 | push @cond, "err" if $e; |
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| 27 | |
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| 28 | my $cb = \$self->{cb}; # avoid $self-reference |
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| 29 | |
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| 30 | $self->{source} = add_watch Glib::IO fileno $self->{fh}, \@cond, sub { |
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| 31 | $$cb->(); 1; |
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| 32 | }; |
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| 33 | |
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| 34 | $self; |
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| 35 | } |
82 | } |
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83 | |
| 37 | sub DESTROY { |
84 | sub DESTROY { |
| 38 | my ($self) = @_; |
85 | remove Glib::Source $${$_[0]}; |
| 39 | |
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| 40 | remove Glib::Source delete $self->{source} if $self->{source}; |
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| 41 | } |
86 | } |
| 42 | |
87 | |
| 43 | ############# |
88 | sub one_event { |
| 44 | |
89 | $mainloop->iteration (1); |
| 45 | sub new_signal { |
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| 46 | my $class = shift; |
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| 47 | |
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| 48 | bless \my $x, $class; |
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| 49 | } |
90 | } |
| 50 | |
91 | |
| 51 | sub send { |
92 | sub loop { |
| 52 | ${$_[0]}++; |
93 | $mainloop->iteration (1) while 1; # hackish, but w ehave no mainloop |
| 53 | } |
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| 54 | |
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| 55 | sub wait { |
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| 56 | $maincontext->iteration (1) while !${$_[0]}; |
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| 57 | } |
94 | } |
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95 | |
| 59 | 1; |
96 | 1; |
| 60 | |
97 | |
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98 | =head1 SEE ALSO |
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99 | |
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100 | L<AnyEvent>, L<Glib>. |
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101 | |
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102 | =head1 AUTHOR |
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103 | |
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104 | Marc Lehmann <schmorp@schmorp.de> |
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105 | http://home.schmorp.de/ |
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106 | |
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107 | =cut |
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108 | |
