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119 | package EV; |
119 | package EV; |
120 | |
120 | |
121 | use common::sense; |
121 | use common::sense; |
122 | |
122 | |
123 | BEGIN { |
123 | BEGIN { |
124 | our $VERSION = '4.10'; |
124 | our $VERSION = '4.17'; |
125 | use XSLoader; |
125 | use XSLoader; |
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126 | local $^W = 0; # avoid spurious warning |
126 | XSLoader::load "EV", $VERSION; |
127 | XSLoader::load "EV", $VERSION; |
127 | } |
128 | } |
128 | |
129 | |
129 | @EV::IO::ISA = |
130 | @EV::IO::ISA = |
130 | @EV::Timer::ISA = |
131 | @EV::Timer::ISA = |
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290 | =item $backend = $loop->backend |
291 | =item $backend = $loop->backend |
291 | |
292 | |
292 | Returns an integer describing the backend used by libev (EV::BACKEND_SELECT |
293 | Returns an integer describing the backend used by libev (EV::BACKEND_SELECT |
293 | or EV::BACKEND_EPOLL). |
294 | or EV::BACKEND_EPOLL). |
294 | |
295 | |
295 | =item EV::run [$flags] |
296 | =item $active = EV::run [$flags] |
296 | |
297 | |
297 | =item $loop->run ([$flags]) |
298 | =item $active = $loop->run ([$flags]) |
298 | |
299 | |
299 | Begin checking for events and calling callbacks. It returns when a |
300 | Begin checking for events and calling callbacks. It returns when a |
300 | callback calls EV::unloop. |
301 | callback calls EV::unloop or the flasg are nonzero (in which case the |
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302 | return value is true) or when there are no active watchers which reference |
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303 | the loop (keepalive is true), in which case the return value will be |
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304 | false. The returnv alue can generally be interpreted as "if true, there is |
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305 | more work left to do". |
301 | |
306 | |
302 | The $flags argument can be one of the following: |
307 | The $flags argument can be one of the following: |
303 | |
308 | |
304 | 0 as above |
309 | 0 as above |
305 | EV::RUN_ONCE block at most once (wait, but do not loop) |
310 | EV::RUN_ONCE block at most once (wait, but do not loop) |
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677 | time: |
682 | time: |
678 | |
683 | |
679 | my $hourly = EV::periodic 0, 3600, 0, sub { print "once/hour\n" }; |
684 | my $hourly = EV::periodic 0, 3600, 0, sub { print "once/hour\n" }; |
680 | |
685 | |
681 | That doesn't mean there will always be 3600 seconds in between triggers, |
686 | That doesn't mean there will always be 3600 seconds in between triggers, |
682 | but only that the the clalback will be called when the system time shows a |
687 | but only that the the callback will be called when the system time shows a |
683 | full hour (UTC). |
688 | full hour (UTC). |
684 | |
689 | |
685 | Another way to think about it (for the mathematically inclined) is that |
690 | Another way to think about it (for the mathematically inclined) is that |
686 | EV::periodic will try to run the callback in this mode at the next |
691 | EV::periodic will try to run the callback in this mode at the next |
687 | possible time where C<$time = $at (mod $interval)>, regardless of any time |
692 | possible time where C<$time = $at (mod $interval)>, regardless of any time |
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1135 | |
1140 | |
1136 | =item $w = EV::async $callback |
1141 | =item $w = EV::async $callback |
1137 | |
1142 | |
1138 | =item $w = EV::async_ns $callback |
1143 | =item $w = EV::async_ns $callback |
1139 | |
1144 | |
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1145 | =item $w = $loop->async ($callback) |
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1146 | |
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1147 | =item $w = $loop->async_ns ($callback) |
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1148 | |
1140 | =item $w->send |
1149 | =item $w->send |
1141 | |
1150 | |
1142 | =item $bool = $w->async_pending |
1151 | =item $bool = $w->async_pending |
1143 | |
1152 | |
1144 | =back |
1153 | =back |
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1154 | |
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1155 | =head3 CLEANUP WATCHERS - how to clean up when the event loop goes away |
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1156 | |
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1157 | Cleanup watchers are not supported on the Perl level, they can only be |
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1158 | used via XS currently. |
1145 | |
1159 | |
1146 | |
1160 | |
1147 | =head1 PERL SIGNALS |
1161 | =head1 PERL SIGNALS |
1148 | |
1162 | |
1149 | While Perl signal handling (C<%SIG>) is not affected by EV, the behaviour |
1163 | While Perl signal handling (C<%SIG>) is not affected by EV, the behaviour |