… | |
… | |
410 | |
410 | |
411 | This backend maps C<EV_READ> to C<POLLIN | POLLERR | POLLHUP>, and |
411 | This backend maps C<EV_READ> to C<POLLIN | POLLERR | POLLHUP>, and |
412 | C<EV_WRITE> to C<POLLOUT | POLLERR | POLLHUP>. |
412 | C<EV_WRITE> to C<POLLOUT | POLLERR | POLLHUP>. |
413 | |
413 | |
414 | =item C<EVBACKEND_EPOLL> (value 4, Linux) |
414 | =item C<EVBACKEND_EPOLL> (value 4, Linux) |
|
|
415 | |
|
|
416 | Use the linux-specific epoll(7) interface (for both pre- and post-2.6.9 |
|
|
417 | kernels). |
415 | |
418 | |
416 | For few fds, this backend is a bit little slower than poll and select, |
419 | For few fds, this backend is a bit little slower than poll and select, |
417 | but it scales phenomenally better. While poll and select usually scale |
420 | but it scales phenomenally better. While poll and select usually scale |
418 | like O(total_fds) where n is the total number of fds (or the highest fd), |
421 | like O(total_fds) where n is the total number of fds (or the highest fd), |
419 | epoll scales either O(1) or O(active_fds). |
422 | epoll scales either O(1) or O(active_fds). |
… | |
… | |
1233 | watcher isn't pending it does nothing and returns C<0>. |
1236 | watcher isn't pending it does nothing and returns C<0>. |
1234 | |
1237 | |
1235 | Sometimes it can be useful to "poll" a watcher instead of waiting for its |
1238 | Sometimes it can be useful to "poll" a watcher instead of waiting for its |
1236 | callback to be invoked, which can be accomplished with this function. |
1239 | callback to be invoked, which can be accomplished with this function. |
1237 | |
1240 | |
|
|
1241 | =item ev_feed_event (struct ev_loop *, watcher *, int revents) |
|
|
1242 | |
|
|
1243 | Feeds the given event set into the event loop, as if the specified event |
|
|
1244 | had happened for the specified watcher (which must be a pointer to an |
|
|
1245 | initialised but not necessarily started event watcher). Obviously you must |
|
|
1246 | not free the watcher as long as it has pending events. |
|
|
1247 | |
|
|
1248 | Stopping the watcher, letting libev invoke it, or calling |
|
|
1249 | C<ev_clear_pending> will clear the pending event, even if the watcher was |
|
|
1250 | not started in the first place. |
|
|
1251 | |
|
|
1252 | See also C<ev_feed_fd_event> and C<ev_feed_signal_event> for related |
|
|
1253 | functions that do not need a watcher. |
|
|
1254 | |
1238 | =back |
1255 | =back |
1239 | |
1256 | |
1240 | |
1257 | |
1241 | =head2 ASSOCIATING CUSTOM DATA WITH A WATCHER |
1258 | =head2 ASSOCIATING CUSTOM DATA WITH A WATCHER |
1242 | |
1259 | |
… | |
… | |
3132 | /* doh, nothing entered */; |
3149 | /* doh, nothing entered */; |
3133 | } |
3150 | } |
3134 | |
3151 | |
3135 | ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0); |
3152 | ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0); |
3136 | |
3153 | |
3137 | =item ev_feed_event (struct ev_loop *, watcher *, int revents) |
|
|
3138 | |
|
|
3139 | Feeds the given event set into the event loop, as if the specified event |
|
|
3140 | had happened for the specified watcher (which must be a pointer to an |
|
|
3141 | initialised but not necessarily started event watcher). |
|
|
3142 | |
|
|
3143 | =item ev_feed_fd_event (struct ev_loop *, int fd, int revents) |
3154 | =item ev_feed_fd_event (struct ev_loop *, int fd, int revents) |
3144 | |
3155 | |
3145 | Feed an event on the given fd, as if a file descriptor backend detected |
3156 | Feed an event on the given fd, as if a file descriptor backend detected |
3146 | the given events it. |
3157 | the given events it. |
3147 | |
3158 | |