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Comparing libev/ev.pod (file contents):
Revision 1.322 by root, Sun Oct 24 17:58:41 2010 UTC vs.
Revision 1.324 by root, Sun Oct 24 19:38:20 2010 UTC

… …
342Example: Restrict libev to the select and poll backends, and do not allow 342Example: Restrict libev to the select and poll backends, and do not allow
343environment settings to be taken into account: 343environment settings to be taken into account:
344 344
345 ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV); 345 ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
346 346
347Example: Use whatever libev has to offer, but make sure that kqueue is
348used if available (warning, breaks stuff, best use only with your own
349private event loop and only if you know the OS supports your types of
350fds):
351
352 ev_default_loop (ev_recommended_backends () | EVBACKEND_KQUEUE);
353
354=item struct ev_loop *ev_loop_new (unsigned int flags) 347=item struct ev_loop *ev_loop_new (unsigned int flags)
355 348
356This will create and initialise a new event loop object. If the loop 349This will create and initialise a new event loop object. If the loop
357could not be initialised, returns false. 350could not be initialised, returns false.
358 351
… …
589Example: Try to create a event loop that uses epoll and nothing else. 582Example: Try to create a event loop that uses epoll and nothing else.
590 583
591 struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV); 584 struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
592 if (!epoller) 585 if (!epoller)
593 fatal ("no epoll found here, maybe it hides under your chair"); 586 fatal ("no epoll found here, maybe it hides under your chair");
587
588Example: Use whatever libev has to offer, but make sure that kqueue is
589used if available.
590
591 struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE);
594 592
595=item ev_loop_destroy (loop) 593=item ev_loop_destroy (loop)
596 594
597Destroys an event loop object (frees all memory and kernel state 595Destroys an event loop object (frees all memory and kernel state
598etc.). None of the active event watchers will be stopped in the normal 596etc.). None of the active event watchers will be stopped in the normal
… …
1114=item C<EV_FORK> 1112=item C<EV_FORK>
1115 1113
1116The event loop has been resumed in the child process after fork (see 1114The event loop has been resumed in the child process after fork (see
1117C<ev_fork>). 1115C<ev_fork>).
1118 1116
1117=item C<EV_CLEANUP>
1118
1119The event loop is abotu to be destroyed (see C<ev_cleanup>).
1120
1119=item C<EV_ASYNC> 1121=item C<EV_ASYNC>
1120 1122
1121The given async watcher has been asynchronously notified (see C<ev_async>). 1123The given async watcher has been asynchronously notified (see C<ev_async>).
1122 1124
1123=item C<EV_CUSTOM> 1125=item C<EV_CUSTOM>
… …
3101believe me. 3103believe me.
3102 3104
3103=back 3105=back
3104 3106
3105 3107
3108=head2 C<ev_cleanup> - even the best things end
3109
3110Cleanup watchers are called just before the event loop they are registered
3111with is being destroyed.
3112
3113While there is no guarantee that the event loop gets destroyed, cleanup
3114watchers provide a convenient method to install cleanup watchers for your
3115program, worker threads and so on - you just to make sure to destroy the
3116loop when you want them to be invoked.
3117
3118=head3 Watcher-Specific Functions and Data Members
3119
3120=over 4
3121
3122=item ev_cleanup_init (ev_signal *, callback)
3123
3124Initialises and configures the cleanup watcher - it has no parameters of
3125any kind. There is a C<ev_cleanup_set> macro, but using it is utterly
3126pointless, believe me.
3127
3128=back
3129
3130Example: Register an atexit handler to destroy the default loop, so any
3131cleanup functions are called.
3132
3133 static void
3134 program_exits (void)
3135 {
3136 ev_loop_destroy (EV_DEFAULT_UC);
3137 }
3138
3139 ...
3140 atexit (program_exits);
3141
3142
3106=head2 C<ev_async> - how to wake up an event loop 3143=head2 C<ev_async> - how to wake up an event loop
3107 3144
3108In general, you cannot use an C<ev_run> from multiple threads or other 3145In general, you cannot use an C<ev_run> from multiple threads or other
3109asynchronous sources such as signal handlers (as opposed to multiple event 3146asynchronous sources such as signal handlers (as opposed to multiple event
3110loops - those are of course safe to use in different threads). 3147loops - those are of course safe to use in different threads).

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