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Comparing Coro/Event/Event.pm (file contents):
Revision 1.1 by root, Thu Aug 16 21:55:34 2001 UTC vs.
Revision 1.15 by root, Sat Mar 29 14:09:17 2003 UTC

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16 print "data> "; 16 print "data> ";
17 my $ev = $w->next; my $data = <STDIN>; 17 my $ev = $w->next; my $data = <STDIN>;
18 } 18 }
19 } 19 }
20 20
21 &loop; 21 loop;
22 22
23=head1 DESCRIPTION 23=head1 DESCRIPTION
24 24
25This module enables you to create programs using the powerful Event model 25This module enables you to create programs using the powerful Event model
26(and module), while retaining the linear style known from simple or 26(and module), while retaining the linear style known from simple or
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30(I<flavour>) (see L<Event>). The only difference between these and the 30(I<flavour>) (see L<Event>). The only difference between these and the
31watcher constructors from Event is that you do not specify a callback 31watcher constructors from Event is that you do not specify a callback
32function - it will be managed by this module. 32function - it will be managed by this module.
33 33
34Your application should just create all necessary coroutines and then call 34Your application should just create all necessary coroutines and then call
35Coro::Event->main. 35Coro::Event::loop.
36 36
37=over 4 37=over 4
38 38
39=cut 39=cut
40 40
41package Coro::Event; 41package Coro::Event;
42 42
43no warnings; 43no warnings qw(uninitialized);
44 44
45use Carp; 45use Carp;
46 46
47use Coro; 47use Coro;
48use Event qw(unloop); # we are re-exporting this, cooool! 48use Event qw(loop unloop); # we are re-exporting this, cooool!
49 49
50use base 'Exporter'; 50use base 'Exporter';
51 51
52@EXPORT = qw(loop unloop sweep); 52@EXPORT = qw(loop unloop sweep reschedule);
53 53
54BEGIN {
54$VERSION = 0.45; 55 $VERSION = 0.651;
56
57 local $^W = 0; # avoid redefine warning for Coro::ready;
58 require XSLoader;
59 XSLoader::load Coro::Event, $VERSION;
60}
55 61
56=item $w = Coro::Event->flavour(args...) 62=item $w = Coro::Event->flavour(args...)
57 63
58Create and return a watcher of the given type. 64Create and return a watcher of the given type.
59 65
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75Create a watcher of the given type and immediately call it's next 81Create a watcher of the given type and immediately call it's next
76method. This is less efficient then calling the constructor once and the 82method. This is less efficient then calling the constructor once and the
77next method often, but it does save typing sometimes. 83next method often, but it does save typing sometimes.
78 84
79=cut 85=cut
80
81#Event->add_hooks(prepare => sub {
82# &Coro::cede while &Coro::nready;
83# 1e6;
84#});
85
86sub std_cb {
87 my $w = $_[0]->w;
88 my $q = $w->private;
89 $q->[1] = $_[0];
90 if ($q->[0]) { # somebody waiting?
91 $q->[0]->ready;
92 &Coro::schedule;
93 } else {
94 $w->stop;
95 }
96}
97 86
98for my $flavour (qw(idle var timer io signal)) { 87for my $flavour (qw(idle var timer io signal)) {
99 push @EXPORT, "do_$flavour"; 88 push @EXPORT, "do_$flavour";
100 my $new = \&{"Event::$flavour"}; 89 my $new = \&{"Event::$flavour"};
101 my $class = "Coro::Event::$flavour"; 90 my $class = "Coro::Event::$flavour";
91 my $type = $flavour eq "io" ? 1 : 0;
102 @{"${class}::ISA"} = (Coro::Event::, "Event::$flavour"); 92 @{"${class}::ISA"} = (Coro::Event::, "Event::$flavour");
103 my $coronew = sub { 93 my $coronew = sub {
104 # how does one do method-call-by-name? 94 # how does one do method-call-by-name?
105 # my $w = $class->SUPER::$flavour(@_); 95 # my $w = $class->SUPER::$flavour(@_);
106 96
107 $_[0] eq Coro::Event:: 97 shift eq Coro::Event::
108 or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method"; 98 or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method";
109 99
110 my $q = []; # [$coro, $event]
111 my $w = $new->( 100 my $w = $new->($class,
112 desc => $flavour, 101 desc => $flavour,
113 @_, 102 @_,
114 cb => \&std_cb, 103 parked => 1,
115 ); 104 );
116 $w->private($q); # using private as attribute is pretty useless... 105 _install_std_cb($w, $type);
117 bless $w, $class; # reblessing due to broken Event 106 bless $w, $class; # reblessing due to broken Event
118 }; 107 };
119 *{ $flavour } = $coronew; 108 *{ $flavour } = $coronew;
120 *{"do_$flavour"} = sub { 109 *{"do_$flavour"} = sub {
121 unshift @_, Coro::Event::; 110 unshift @_, Coro::Event::;
122 my $e = (&$coronew)->next; 111 my $e = (&$coronew)->next;
123 $e->w->cancel; 112 $e->cancel; # $e = $e->w->cancel ($e == $e->w!)
124 $e; 113 $e;
125 }; 114 };
126} 115}
127 116
117# double calls to avoid stack-cloning ;()
118# is about 10% slower, though.
128sub next { 119sub next($) {
129 my $w = $_[0]; 120 &Coro::schedule if &_next; $_[0];
130 my $q = $w->private;
131 if ($q->[1]) { # event waiting?
132 $w->again unless $w->is_cancelled;
133 } elsif ($q->[0]) {
134 croak "only one coroutine can wait for an event";
135 } else {
136 local $q->[0] = $Coro::current;
137 &Coro::schedule;
138 }
139 pop @$q;
140} 121}
122
123sub Coro::Event::w { $_[0] }
124sub Coro::Event::prio { $_[0]{Coro::Event}[3] }
125sub Coro::Event::hits { $_[0]{Coro::Event}[4] }
126sub Coro::Event::got { $_[0]{Coro::Event}[5] }
141 127
142=item sweep 128=item sweep
143 129
144Similar to Event::one_event and Event::sweep: The idle task is called once 130Similar to Event::one_event and Event::sweep: The idle task is called once
145(this has the effect of jumping back into the Event loop once to serve new 131(this has the effect of jumping back into the Event loop once to serve new
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151into the Event dispatcher. 137into the Event dispatcher.
152 138
153=cut 139=cut
154 140
155sub sweep { 141sub sweep {
156 one_event(0); # for now 142 Event::one_event(0); # for now
157} 143}
158 144
159=item $result = loop([$timeout]) 145=item $result = loop([$timeout])
160 146
161This is the version of C<loop> you should use instead of C<Event::loop> 147This is the version of C<loop> you should use instead of C<Event::loop>
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169 155
170=end comment 156=end comment
171 157
172=cut 158=cut
173 159
160# no longer do something special - it's done internally now
161
174sub loop(;$) { 162#sub loop(;$) {
175 local $Coro::idle = $Coro::current; 163# #local $Coro::idle = $Coro::current;
176 Coro::schedule; # become idle task, which is implicitly ready 164# #Coro::schedule; # become idle task, which is implicitly ready
177 &Event::loop; 165# &Event::loop;
178} 166#}
179 167
180=item unloop([$result]) 168=item unloop([$result])
181 169
182Same as Event::unloop (provided here for your convinience only). 170Same as Event::unloop (provided here for your convinience only).
183 171
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188 Event::one_event; # inefficient 176 Event::one_event; # inefficient
189 Coro::schedule; 177 Coro::schedule;
190 } 178 }
191}; 179};
192 180
181# provide hooks for Coro::Timer
182
183package Coro::Timer;
184
185unless ($override) {
186 $override = 1;
187 *_new_timer = sub {
188 Event->timer(at => $_[0], cb => $_[1]);
189 };
190}
191
1931; 1921;
194 193
195=head1 AUTHOR 194=head1 AUTHOR
196 195
197 Marc Lehmann <pcg@goof.com> 196 Marc Lehmann <pcg@goof.com>

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