1 | /* |
1 | /* |
|
|
2 | * libev native API header |
|
|
3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
6 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
7 | * met: |
9 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
8 | * |
27 | * |
9 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
10 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
11 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
12 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
13 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
14 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
15 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
16 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
|
20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
|
21 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
|
22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
|
23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
|
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
|
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
|
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
|
27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
28 | */ |
38 | */ |
29 | |
39 | |
30 | #ifndef EV_H__ |
40 | #ifndef EV_H__ |
31 | #define EV_H__ |
41 | #define EV_H__ |
32 | |
42 | |
… | |
… | |
46 | |
56 | |
47 | #ifndef EV_MULTIPLICITY |
57 | #ifndef EV_MULTIPLICITY |
48 | # define EV_MULTIPLICITY 1 |
58 | # define EV_MULTIPLICITY 1 |
49 | #endif |
59 | #endif |
50 | |
60 | |
51 | #ifndef EV_PERIODICS |
61 | #ifndef EV_PERIODIC_ENABLE |
52 | # define EV_PERIODICS 1 |
62 | # define EV_PERIODIC_ENABLE 1 |
|
|
63 | #endif |
|
|
64 | |
|
|
65 | #ifndef EV_STAT_ENABLE |
|
|
66 | # define EV_STAT_ENABLE 1 |
|
|
67 | #endif |
|
|
68 | |
|
|
69 | #ifndef EV_IDLE_ENABLE |
|
|
70 | # define EV_IDLE_ENABLE 1 |
|
|
71 | #endif |
|
|
72 | |
|
|
73 | #ifndef EV_FORK_ENABLE |
|
|
74 | # define EV_FORK_ENABLE 1 |
|
|
75 | #endif |
|
|
76 | |
|
|
77 | #ifndef EV_EMBED_ENABLE |
|
|
78 | # define EV_EMBED_ENABLE 1 |
|
|
79 | #endif |
|
|
80 | |
|
|
81 | #ifndef EV_ASYNC_ENABLE |
|
|
82 | # define EV_ASYNC_ENABLE 1 |
|
|
83 | #endif |
|
|
84 | |
|
|
85 | #ifndef EV_ATOMIC_T |
|
|
86 | # include <signal.h> |
|
|
87 | # define EV_ATOMIC_T sig_atomic_t volatile |
|
|
88 | #endif |
|
|
89 | |
|
|
90 | /*****************************************************************************/ |
|
|
91 | |
|
|
92 | #if EV_STAT_ENABLE |
|
|
93 | # include <sys/stat.h> |
53 | #endif |
94 | #endif |
54 | |
95 | |
55 | /* support multiple event loops? */ |
96 | /* support multiple event loops? */ |
56 | #if EV_MULTIPLICITY |
97 | #if EV_MULTIPLICITY |
57 | struct ev_loop; |
98 | struct ev_loop; |
58 | # define EV_P struct ev_loop *loop |
99 | # define EV_P struct ev_loop *loop |
59 | # define EV_P_ EV_P, |
100 | # define EV_P_ EV_P, |
60 | # define EV_A loop |
101 | # define EV_A loop |
61 | # define EV_A_ EV_A, |
102 | # define EV_A_ EV_A, |
62 | # define EV_DEFAULT_A ev_default_loop (0) |
103 | # define EV_DEFAULT ev_default_loop (0) |
63 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
104 | # define EV_DEFAULT_ EV_DEFAULT, |
64 | #else |
105 | #else |
65 | # define EV_P void |
106 | # define EV_P void |
66 | # define EV_P_ |
107 | # define EV_P_ |
67 | # define EV_A |
108 | # define EV_A |
68 | # define EV_A_ |
109 | # define EV_A_ |
|
|
110 | # define EV_DEFAULT |
69 | # define EV_DEFAULT_A |
111 | # define EV_DEFAULT_ |
70 | # define EV_DEFAULT_A_ |
112 | |
|
|
113 | # undef EV_EMBED_ENABLE |
71 | #endif |
114 | #endif |
72 | |
115 | |
73 | /* eventmask, revents, events... */ |
116 | /* eventmask, revents, events... */ |
74 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
117 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
75 | #define EV_NONE 0x00L |
118 | #define EV_NONE 0x00L /* no events */ |
76 | #define EV_READ 0x01L /* io only */ |
119 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
|
|
120 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
77 | #define EV_WRITE 0x02L /* io only */ |
121 | #define EV_IOFDSET 0x80L /* internal use only */ |
78 | #define EV_TIMEOUT 0x000100L /* timer only */ |
122 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
79 | #define EV_PERIODIC 0x000200L /* periodic timer only */ |
123 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
80 | #define EV_SIGNAL 0x000400L /* signal only */ |
124 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
81 | #define EV_IDLE 0x000800L /* idle only */ |
|
|
82 | #define EV_CHECK 0x001000L /* check only */ |
|
|
83 | #define EV_PREPARE 0x002000L /* prepare only */ |
|
|
84 | #define EV_CHILD 0x004000L /* child/pid only */ |
125 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
|
|
126 | #define EV_STAT 0x00001000L /* stat data changed */ |
|
|
127 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
|
|
128 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
|
|
129 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
85 | #define EV_EMBED 0x008000L /* embedded event loop */ |
130 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
|
|
131 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
|
|
132 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
86 | #define EV_ERROR 0x800000L /* sent when an error occurs */ |
133 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
87 | |
134 | |
88 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
135 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
89 | #ifndef EV_COMMON |
136 | #ifndef EV_COMMON |
90 | # define EV_COMMON void *data; |
137 | # define EV_COMMON void *data; |
91 | #endif |
138 | #endif |
92 | #ifndef EV_PROTOTYPES |
139 | #ifndef EV_PROTOTYPES |
93 | # define EV_PROTOTYPES 1 |
140 | # define EV_PROTOTYPES 1 |
94 | #endif |
141 | #endif |
95 | |
142 | |
96 | #define EV_VERSION_MAJOR 1 |
143 | #define EV_VERSION_MAJOR 3 |
97 | #define EV_VERSION_MINOR 1 |
144 | #define EV_VERSION_MINOR 0 |
98 | |
145 | |
99 | #ifndef EV_CB_DECLARE |
146 | #ifndef EV_CB_DECLARE |
100 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
147 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
101 | #endif |
148 | #endif |
102 | #ifndef EV_CB_INVOKE |
149 | #ifndef EV_CB_INVOKE |
… | |
… | |
125 | #define EV_WATCHER_TIME(type) \ |
172 | #define EV_WATCHER_TIME(type) \ |
126 | EV_WATCHER (type) \ |
173 | EV_WATCHER (type) \ |
127 | ev_tstamp at; /* private */ |
174 | ev_tstamp at; /* private */ |
128 | |
175 | |
129 | /* base class, nothing to see here unless you subclass */ |
176 | /* base class, nothing to see here unless you subclass */ |
130 | struct ev_watcher |
177 | typedef struct ev_watcher |
131 | { |
178 | { |
132 | EV_WATCHER (ev_watcher) |
179 | EV_WATCHER (ev_watcher) |
133 | }; |
180 | } ev_watcher; |
134 | |
181 | |
135 | /* base class, nothing to see here unless you subclass */ |
182 | /* base class, nothing to see here unless you subclass */ |
136 | struct ev_watcher_list |
183 | typedef struct ev_watcher_list |
137 | { |
184 | { |
138 | EV_WATCHER_LIST (ev_watcher_list) |
185 | EV_WATCHER_LIST (ev_watcher_list) |
139 | }; |
186 | } ev_watcher_list; |
140 | |
187 | |
141 | /* base class, nothing to see here unless you subclass */ |
188 | /* base class, nothing to see here unless you subclass */ |
142 | struct ev_watcher_time |
189 | typedef struct ev_watcher_time |
143 | { |
190 | { |
144 | EV_WATCHER_TIME (ev_watcher_time) |
191 | EV_WATCHER_TIME (ev_watcher_time) |
145 | }; |
192 | } ev_watcher_time; |
|
|
193 | |
|
|
194 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
195 | /* revent EV_READ, EV_WRITE */ |
|
|
196 | typedef struct ev_io |
|
|
197 | { |
|
|
198 | EV_WATCHER_LIST (ev_io) |
|
|
199 | |
|
|
200 | int fd; /* ro */ |
|
|
201 | int events; /* ro */ |
|
|
202 | } ev_io; |
146 | |
203 | |
147 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
204 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
148 | /* revent EV_TIMEOUT */ |
205 | /* revent EV_TIMEOUT */ |
149 | struct ev_timer |
206 | typedef struct ev_timer |
150 | { |
207 | { |
151 | EV_WATCHER_TIME (ev_timer) |
208 | EV_WATCHER_TIME (ev_timer) |
152 | |
209 | |
153 | ev_tstamp repeat; /* rw */ |
210 | ev_tstamp repeat; /* rw */ |
154 | }; |
211 | } ev_timer; |
155 | |
212 | |
156 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
213 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
157 | /* revent EV_PERIODIC */ |
214 | /* revent EV_PERIODIC */ |
158 | struct ev_periodic |
215 | typedef struct ev_periodic |
159 | { |
216 | { |
160 | EV_WATCHER_TIME (ev_periodic) |
217 | EV_WATCHER_TIME (ev_periodic) |
161 | |
218 | |
|
|
219 | ev_tstamp offset; /* rw */ |
162 | ev_tstamp interval; /* rw */ |
220 | ev_tstamp interval; /* rw */ |
163 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
221 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
164 | }; |
222 | } ev_periodic; |
165 | |
|
|
166 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
167 | /* revent EV_READ, EV_WRITE */ |
|
|
168 | struct ev_io |
|
|
169 | { |
|
|
170 | EV_WATCHER_LIST (ev_io) |
|
|
171 | |
|
|
172 | int fd; /* ro */ |
|
|
173 | int events; /* ro */ |
|
|
174 | }; |
|
|
175 | |
223 | |
176 | /* invoked when the given signal has been received */ |
224 | /* invoked when the given signal has been received */ |
177 | /* revent EV_SIGNAL */ |
225 | /* revent EV_SIGNAL */ |
178 | struct ev_signal |
226 | typedef struct ev_signal |
179 | { |
227 | { |
180 | EV_WATCHER_LIST (ev_signal) |
228 | EV_WATCHER_LIST (ev_signal) |
181 | |
229 | |
182 | int signum; /* ro */ |
230 | int signum; /* ro */ |
183 | }; |
231 | } ev_signal; |
184 | |
232 | |
|
|
233 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
|
|
234 | /* revent EV_CHILD */ |
|
|
235 | /* does not support priorities */ |
|
|
236 | typedef struct ev_child |
|
|
237 | { |
|
|
238 | EV_WATCHER_LIST (ev_child) |
|
|
239 | |
|
|
240 | int flags; /* private */ |
|
|
241 | int pid; /* ro */ |
|
|
242 | int rpid; /* rw, holds the received pid */ |
|
|
243 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
244 | } ev_child; |
|
|
245 | |
|
|
246 | #if EV_STAT_ENABLE |
|
|
247 | /* st_nlink = 0 means missing file or other error */ |
|
|
248 | # ifdef _WIN32 |
|
|
249 | typedef struct _stati64 ev_statdata; |
|
|
250 | # else |
|
|
251 | typedef struct stat ev_statdata; |
|
|
252 | # endif |
|
|
253 | |
|
|
254 | /* invoked each time the stat data changes for a given path */ |
|
|
255 | /* revent EV_STAT */ |
|
|
256 | typedef struct ev_stat |
|
|
257 | { |
|
|
258 | EV_WATCHER_LIST (ev_stat) |
|
|
259 | |
|
|
260 | ev_timer timer; /* private */ |
|
|
261 | ev_tstamp interval; /* ro */ |
|
|
262 | const char *path; /* ro */ |
|
|
263 | ev_statdata prev; /* ro */ |
|
|
264 | ev_statdata attr; /* ro */ |
|
|
265 | |
|
|
266 | int wd; /* wd for inotify, fd for kqueue */ |
|
|
267 | } ev_stat; |
|
|
268 | #endif |
|
|
269 | |
|
|
270 | #if EV_IDLE_ENABLE |
185 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
271 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
186 | /* revent EV_IDLE */ |
272 | /* revent EV_IDLE */ |
187 | struct ev_idle |
273 | typedef struct ev_idle |
188 | { |
274 | { |
189 | EV_WATCHER (ev_idle) |
275 | EV_WATCHER (ev_idle) |
190 | }; |
276 | } ev_idle; |
|
|
277 | #endif |
191 | |
278 | |
192 | /* invoked for each run of the mainloop, just before the blocking call */ |
279 | /* invoked for each run of the mainloop, just before the blocking call */ |
193 | /* you can still change events in any way you like */ |
280 | /* you can still change events in any way you like */ |
194 | /* revent EV_PREPARE */ |
281 | /* revent EV_PREPARE */ |
195 | struct ev_prepare |
282 | typedef struct ev_prepare |
196 | { |
283 | { |
197 | EV_WATCHER (ev_prepare) |
284 | EV_WATCHER (ev_prepare) |
198 | }; |
285 | } ev_prepare; |
199 | |
286 | |
200 | /* invoked for each run of the mainloop, just after the blocking call */ |
287 | /* invoked for each run of the mainloop, just after the blocking call */ |
201 | /* revent EV_CHECK */ |
288 | /* revent EV_CHECK */ |
202 | struct ev_check |
289 | typedef struct ev_check |
203 | { |
290 | { |
204 | EV_WATCHER (ev_check) |
291 | EV_WATCHER (ev_check) |
205 | }; |
292 | } ev_check; |
206 | |
293 | |
207 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
294 | #if EV_FORK_ENABLE |
208 | /* revent EV_CHILD */ |
295 | /* the callback gets invoked before check in the child process when a fork was detected */ |
209 | /* does not support priorities */ |
296 | typedef struct ev_fork |
210 | struct ev_child |
|
|
211 | { |
297 | { |
212 | EV_WATCHER_LIST (ev_child) |
298 | EV_WATCHER (ev_fork) |
|
|
299 | } ev_fork; |
|
|
300 | #endif |
213 | |
301 | |
214 | int pid; /* ro */ |
302 | #if EV_EMBED_ENABLE |
215 | int rpid; /* rw, holds the received pid */ |
|
|
216 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
217 | }; |
|
|
218 | |
|
|
219 | #if EV_MULTIPLICITY |
|
|
220 | /* used to embed an event loop inside another */ |
303 | /* used to embed an event loop inside another */ |
221 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
304 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
222 | struct ev_embed |
305 | typedef struct ev_embed |
223 | { |
306 | { |
224 | EV_WATCHER (ev_embed) |
307 | EV_WATCHER (ev_embed) |
225 | |
308 | |
226 | struct ev_io io; /* private */ |
|
|
227 | struct ev_loop *loop; /* ro */ |
309 | struct ev_loop *other; /* ro */ |
228 | }; |
310 | ev_io io; /* private */ |
|
|
311 | ev_prepare prepare; /* private */ |
|
|
312 | ev_check check; /* unused */ |
|
|
313 | ev_timer timer; /* unused */ |
|
|
314 | ev_periodic periodic; /* unused */ |
|
|
315 | ev_idle idle; /* unused */ |
|
|
316 | ev_fork fork; /* unused */ |
|
|
317 | } ev_embed; |
|
|
318 | #endif |
|
|
319 | |
|
|
320 | #if EV_ASYNC_ENABLE |
|
|
321 | /* invoked when somebody calls ev_async_send on the watcher */ |
|
|
322 | /* revent EV_ASYNC */ |
|
|
323 | typedef struct ev_async |
|
|
324 | { |
|
|
325 | EV_WATCHER (ev_async) |
|
|
326 | |
|
|
327 | EV_ATOMIC_T sent; /* private */ |
|
|
328 | } ev_async; |
|
|
329 | |
|
|
330 | # define ev_async_pending(w) (((w)->sent + 0) |
229 | #endif |
331 | #endif |
230 | |
332 | |
231 | /* the presence of this union forces similar struct layout */ |
333 | /* the presence of this union forces similar struct layout */ |
232 | union ev_any_watcher |
334 | union ev_any_watcher |
233 | { |
335 | { |
… | |
… | |
235 | struct ev_watcher_list wl; |
337 | struct ev_watcher_list wl; |
236 | |
338 | |
237 | struct ev_io io; |
339 | struct ev_io io; |
238 | struct ev_timer timer; |
340 | struct ev_timer timer; |
239 | struct ev_periodic periodic; |
341 | struct ev_periodic periodic; |
|
|
342 | struct ev_signal signal; |
|
|
343 | struct ev_child child; |
|
|
344 | #if EV_STAT_ENABLE |
|
|
345 | struct ev_stat stat; |
|
|
346 | #endif |
|
|
347 | #if EV_IDLE_ENABLE |
240 | struct ev_idle idle; |
348 | struct ev_idle idle; |
|
|
349 | #endif |
241 | struct ev_prepare prepare; |
350 | struct ev_prepare prepare; |
242 | struct ev_check check; |
351 | struct ev_check check; |
243 | struct ev_signal signal; |
352 | #if EV_FORK_ENABLE |
244 | struct ev_child child; |
353 | struct ev_fork fork; |
|
|
354 | #endif |
|
|
355 | #if EV_EMBED_ENABLE |
245 | struct ev_embed embed; |
356 | struct ev_embed embed; |
|
|
357 | #endif |
|
|
358 | #if EV_ASYND_ENABLE |
|
|
359 | struct ev_async async; |
|
|
360 | #endif |
246 | }; |
361 | }; |
247 | |
362 | |
248 | /* bits for ev_default_loop and ev_loop_new */ |
363 | /* bits for ev_default_loop and ev_loop_new */ |
249 | /* the default */ |
364 | /* the default */ |
250 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
365 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
251 | /* flag bits */ |
366 | /* flag bits */ |
252 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
367 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
|
|
368 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
253 | /* method bits to be ored together */ |
369 | /* method bits to be ored together */ |
254 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
370 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
255 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
371 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
256 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
372 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
257 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
373 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
… | |
… | |
265 | unsigned int ev_supported_backends (void); |
381 | unsigned int ev_supported_backends (void); |
266 | unsigned int ev_recommended_backends (void); |
382 | unsigned int ev_recommended_backends (void); |
267 | unsigned int ev_embeddable_backends (void); |
383 | unsigned int ev_embeddable_backends (void); |
268 | |
384 | |
269 | ev_tstamp ev_time (void); |
385 | ev_tstamp ev_time (void); |
|
|
386 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
270 | |
387 | |
271 | /* Sets the allocation function to use, works like realloc. |
388 | /* Sets the allocation function to use, works like realloc. |
272 | * It is used to allocate and free memory. |
389 | * It is used to allocate and free memory. |
273 | * If it returns zero when memory needs to be allocated, the library might abort |
390 | * If it returns zero when memory needs to be allocated, the library might abort |
274 | * or take some potentially destructive action. |
391 | * or take some potentially destructive action. |
… | |
… | |
315 | |
432 | |
316 | return ev_rt_now; |
433 | return ev_rt_now; |
317 | } |
434 | } |
318 | # endif |
435 | # endif |
319 | |
436 | |
|
|
437 | static int |
|
|
438 | ev_is_default_loop (EV_P) |
|
|
439 | { |
|
|
440 | #if EV_MULTIPLICITY |
|
|
441 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
442 | |
|
|
443 | return !!(EV_A == ev_default_loop_ptr); |
|
|
444 | #else |
|
|
445 | return 1; |
|
|
446 | #endif |
|
|
447 | } |
|
|
448 | |
320 | void ev_default_destroy (void); /* destroy the default loop */ |
449 | void ev_default_destroy (void); /* destroy the default loop */ |
321 | /* this needs to be called after fork, to duplicate the default loop */ |
450 | /* this needs to be called after fork, to duplicate the default loop */ |
322 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
451 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
323 | /* you can call it in either the parent or the child */ |
452 | /* you can call it in either the parent or the child */ |
324 | /* you can actually call it at any time, anywhere :) */ |
453 | /* you can actually call it at any time, anywhere :) */ |
325 | void ev_default_fork (void); |
454 | void ev_default_fork (void); |
326 | |
455 | |
327 | unsigned int ev_backend (EV_P); |
456 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
|
|
457 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
328 | #endif |
458 | #endif |
329 | |
459 | |
330 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
460 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
331 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
461 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
332 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
462 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
… | |
… | |
334 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
464 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
335 | |
465 | |
336 | #if EV_PROTOTYPES |
466 | #if EV_PROTOTYPES |
337 | void ev_loop (EV_P_ int flags); |
467 | void ev_loop (EV_P_ int flags); |
338 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
468 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
|
|
469 | |
|
|
470 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
|
|
471 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
339 | |
472 | |
340 | /* |
473 | /* |
341 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
474 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
342 | * keeps one reference. if you have a long-runing watcher you never unregister that |
475 | * keeps one reference. if you have a long-runing watcher you never unregister that |
343 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
476 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
… | |
… | |
350 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
483 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
351 | #endif |
484 | #endif |
352 | |
485 | |
353 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
486 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
354 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
487 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
355 | #define ev_init(ev,cb_) do { \ |
488 | #define ev_init(ev,cb_) do { \ |
356 | ((struct ev_watcher *)(void *)(ev))->active = \ |
489 | ((ev_watcher *)(void *)(ev))->active = \ |
357 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
490 | ((ev_watcher *)(void *)(ev))->pending = \ |
358 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
491 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
359 | ev_set_cb ((ev), cb_); \ |
492 | ev_set_cb ((ev), cb_); \ |
360 | } while (0) |
493 | } while (0) |
361 | |
494 | |
362 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
495 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
363 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
496 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
364 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
497 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
365 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
498 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
|
|
499 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
|
|
500 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
366 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
501 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
367 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
502 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
368 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
503 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
369 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
|
|
370 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
504 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
|
|
505 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
|
|
506 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
371 | |
507 | |
372 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
508 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
373 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
509 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
374 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
510 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
375 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
511 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
|
|
512 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
|
|
513 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
376 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
514 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
377 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
515 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
378 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
516 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
379 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
|
|
380 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
517 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
|
|
518 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
|
|
519 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
381 | |
520 | |
382 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
521 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
383 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
522 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
384 | |
523 | |
385 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
524 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
386 | #define ev_cb(ev) (ev)->cb /* rw */ |
525 | #define ev_cb(ev) (ev)->cb /* rw */ |
387 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
526 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
388 | |
527 | |
389 | #ifndef ev_set_cb |
528 | #ifndef ev_set_cb |
390 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
529 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
391 | #endif |
530 | #endif |
392 | |
531 | |
… | |
… | |
397 | /* feeds an event into a watcher as if the event actually occured */ |
536 | /* feeds an event into a watcher as if the event actually occured */ |
398 | /* accepts any ev_watcher type */ |
537 | /* accepts any ev_watcher type */ |
399 | void ev_feed_event (EV_P_ void *w, int revents); |
538 | void ev_feed_event (EV_P_ void *w, int revents); |
400 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
539 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
401 | void ev_feed_signal_event (EV_P_ int signum); |
540 | void ev_feed_signal_event (EV_P_ int signum); |
|
|
541 | void ev_invoke (EV_P_ void *w, int revents); |
|
|
542 | int ev_clear_pending (EV_P_ void *w); |
402 | |
543 | |
403 | void ev_io_start (EV_P_ struct ev_io *w); |
544 | void ev_io_start (EV_P_ ev_io *w); |
404 | void ev_io_stop (EV_P_ struct ev_io *w); |
545 | void ev_io_stop (EV_P_ ev_io *w); |
405 | |
546 | |
406 | void ev_timer_start (EV_P_ struct ev_timer *w); |
547 | void ev_timer_start (EV_P_ ev_timer *w); |
407 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
548 | void ev_timer_stop (EV_P_ ev_timer *w); |
408 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
549 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
409 | void ev_timer_again (EV_P_ struct ev_timer *w); |
550 | void ev_timer_again (EV_P_ ev_timer *w); |
410 | |
551 | |
411 | #if EV_PERIODICS |
552 | #if EV_PERIODIC_ENABLE |
412 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
553 | void ev_periodic_start (EV_P_ ev_periodic *w); |
413 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
554 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
414 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
555 | void ev_periodic_again (EV_P_ ev_periodic *w); |
415 | #endif |
556 | #endif |
416 | |
|
|
417 | void ev_idle_start (EV_P_ struct ev_idle *w); |
|
|
418 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
|
|
419 | |
|
|
420 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
|
|
421 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
|
|
422 | |
|
|
423 | void ev_check_start (EV_P_ struct ev_check *w); |
|
|
424 | void ev_check_stop (EV_P_ struct ev_check *w); |
|
|
425 | |
557 | |
426 | /* only supported in the default loop */ |
558 | /* only supported in the default loop */ |
427 | void ev_signal_start (EV_P_ struct ev_signal *w); |
559 | void ev_signal_start (EV_P_ ev_signal *w); |
428 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
560 | void ev_signal_stop (EV_P_ ev_signal *w); |
429 | |
561 | |
430 | /* only supported in the default loop */ |
562 | /* only supported in the default loop */ |
431 | void ev_child_start (EV_P_ struct ev_child *w); |
563 | void ev_child_start (EV_P_ ev_child *w); |
432 | void ev_child_stop (EV_P_ struct ev_child *w); |
564 | void ev_child_stop (EV_P_ ev_child *w); |
433 | |
565 | |
434 | # if EV_MULTIPLICITY |
566 | # if EV_STAT_ENABLE |
|
|
567 | void ev_stat_start (EV_P_ ev_stat *w); |
|
|
568 | void ev_stat_stop (EV_P_ ev_stat *w); |
|
|
569 | void ev_stat_stat (EV_P_ ev_stat *w); |
|
|
570 | # endif |
|
|
571 | |
|
|
572 | # if EV_IDLE_ENABLE |
|
|
573 | void ev_idle_start (EV_P_ ev_idle *w); |
|
|
574 | void ev_idle_stop (EV_P_ ev_idle *w); |
|
|
575 | # endif |
|
|
576 | |
|
|
577 | void ev_prepare_start (EV_P_ ev_prepare *w); |
|
|
578 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
|
|
579 | |
|
|
580 | void ev_check_start (EV_P_ ev_check *w); |
|
|
581 | void ev_check_stop (EV_P_ ev_check *w); |
|
|
582 | |
|
|
583 | # if EV_FORK_ENABLE |
|
|
584 | void ev_fork_start (EV_P_ ev_fork *w); |
|
|
585 | void ev_fork_stop (EV_P_ ev_fork *w); |
|
|
586 | # endif |
|
|
587 | |
|
|
588 | # if EV_EMBED_ENABLE |
435 | /* only supported when loop to be embedded is in fact embeddable */ |
589 | /* only supported when loop to be embedded is in fact embeddable */ |
436 | void ev_embed_start (EV_P_ struct ev_embed *w); |
590 | void ev_embed_start (EV_P_ ev_embed *w); |
437 | void ev_embed_stop (EV_P_ struct ev_embed *w); |
591 | void ev_embed_stop (EV_P_ ev_embed *w); |
|
|
592 | void ev_embed_sweep (EV_P_ ev_embed *w); |
|
|
593 | # endif |
|
|
594 | |
|
|
595 | # if EV_ASYNC_ENABLE |
|
|
596 | void ev_async_start (EV_P_ ev_async *w); |
|
|
597 | void ev_async_stop (EV_P_ ev_async *w); |
|
|
598 | void ev_async_send (EV_P_ ev_async *w); |
438 | # endif |
599 | # endif |
439 | |
600 | |
440 | #endif |
601 | #endif |
441 | |
602 | |
442 | #ifdef __cplusplus |
603 | #ifdef __cplusplus |