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Comparing Coro/Event/Event.pm (file contents):
Revision 1.37 by root, Mon Nov 20 19:56:04 2006 UTC vs.
Revision 1.42 by root, Fri Dec 1 02:24:46 2006 UTC

… …
37Please note that even programs or modules (such as 37Please note that even programs or modules (such as
38L<Coro::Handle|Coro::Handle>) that use "traditional" 38L<Coro::Handle|Coro::Handle>) that use "traditional"
39event-based/continuation style will run more efficient with this module 39event-based/continuation style will run more efficient with this module
40then when using only Event. 40then when using only Event.
41 41
42=head1 WARNING
43
44Please note that Event does not support coroutines or threads. That
45means that you B<MUST NOT> block in an event callback. Again: In Event
46callbacks, you I<must never ever> call a Coroutine fucntion that blocks
47the current coroutine.
48
49While this seems to work superficially, it will eventually cause memory
50corruption.
51
52=head1 FUNCTIONS
53
42=over 4 54=over 4
43 55
44=cut 56=cut
45 57
46package Coro::Event; 58package Coro::Event;
47 59
48BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") } 60no warnings;
49 61
50use Carp; 62use Carp;
51no warnings; 63no warnings;
52 64
53use Coro; 65use Coro;
66use Coro::Timer;
54use Event qw(loop unloop); # we are re-exporting this, cooool! 67use Event qw(loop unloop); # we are re-exporting this, cooool!
55 68
56use XSLoader; 69use XSLoader;
57 70
58use base Exporter::; 71use base Exporter::;
59 72
60our @EXPORT = qw(loop unloop sweep reschedule); 73our @EXPORT = qw(loop unloop sweep);
61 74
62BEGIN { 75BEGIN {
63 our $VERSION = 1.9; 76 our $VERSION = 1.9;
64 77
65 local $^W = 0; # avoid redefine warning for Coro::ready; 78 local $^W = 0; # avoid redefine warning for Coro::ready;
66 XSLoader::load __PACKAGE__, $VERSION; 79 XSLoader::load __PACKAGE__, $VERSION;
67} 80}
68 81
69=item $w = Coro::Event->flavour(args...) 82=item $w = Coro::Event->flavour (args...)
70 83
71Create and return a watcher of the given type. 84Create and return a watcher of the given type.
72 85
73Examples: 86Examples:
74 87
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81 94
82Return the next event of the event queue of the watcher. 95Return the next event of the event queue of the watcher.
83 96
84=cut 97=cut
85 98
86=item do_flavour(args...) 99=item do_flavour args...
87 100
88Create a watcher of the given type and immediately call it's next 101Create a watcher of the given type and immediately call it's next
89method. This is less efficient then calling the constructor once and the 102method. This is less efficient then calling the constructor once and the
90next method often, but it does save typing sometimes. 103next method often, but it does save typing sometimes.
91 104
… …
122} 135}
123 136
124# double calls to avoid stack-cloning ;() 137# double calls to avoid stack-cloning ;()
125# is about 10% slower, though. 138# is about 10% slower, though.
126sub next($) { 139sub next($) {
127 &Coro::schedule if &_next; $_[0]; 140 &Coro::schedule while &_next;
141
142 $_[0]
128} 143}
129 144
130sub Coro::Event::w { $_[0] } 145sub Coro::Event::w { $_[0] }
131sub Coro::Event::prio { $_[0]{Coro::Event}[3] } 146sub Coro::Event::prio { $_[0]{Coro::Event}[3] }
132sub Coro::Event::hits { $_[0]{Coro::Event}[4] } 147sub Coro::Event::hits { $_[0]{Coro::Event}[4] }
… …
144into the Event dispatcher. 159into the Event dispatcher.
145 160
146=cut 161=cut
147 162
148sub sweep { 163sub sweep {
149 Event::one_event(0); # for now 164 Event::one_event 0; # for now
150} 165}
151 166
152=item $result = loop([$timeout]) 167=item $result = loop([$timeout])
153 168
154This is the version of C<loop> you should use instead of C<Event::loop> 169This is the version of C<loop> you should use instead of C<Event::loop>
155when using this module - it will ensure correct scheduling in the presence 170when using this module - it will ensure correct scheduling in the presence
156of events. 171of events.
157 172
158=begin comment
159
160Unlike loop's counterpart it is not an error when no watchers are active -
161loop silently returns in this case, as if unloop(undef) were called.
162
163=end comment
164
165=cut
166
167# no longer do something special - it's done internally now
168
169#sub loop(;$) {
170# #local $Coro::idle = $Coro::current;
171# #Coro::schedule; # become idle task, which is implicitly ready
172# &Event::loop;
173#}
174
175=item unloop([$result]) 173=item unloop([$result])
176 174
177Same as Event::unloop (provided here for your convinience only). 175Same as Event::unloop (provided here for your convinience only).
178 176
179=cut 177=cut
180 178
181$Coro::idle = new Coro sub { 179$Coro::idle = \&Event::one_event; # inefficient
182 while () {
183 Event::one_event; # inefficient
184 Coro::schedule;
185 }
186};
187
188# provide hooks for Coro::Timer
189
190package Coro::Timer;
191
192unless ($override) {
193 $override = 1;
194 *_new_timer = sub {
195 Event->timer(at => $_[0], cb => $_[1]);
196 };
197}
198 180
1991; 1811;
200 182
201=back 183=back
202 184

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