1 | /* |
1 | /* |
|
|
2 | * libev native API header |
|
|
3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007 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 | /*****************************************************************************/ |
|
|
82 | |
|
|
83 | #if EV_STAT_ENABLE |
|
|
84 | # include <sys/stat.h> |
53 | #endif |
85 | #endif |
54 | |
86 | |
55 | /* support multiple event loops? */ |
87 | /* support multiple event loops? */ |
56 | #if EV_MULTIPLICITY |
88 | #if EV_MULTIPLICITY |
57 | struct ev_loop; |
89 | struct ev_loop; |
58 | # define EV_P struct ev_loop *loop |
90 | # define EV_P struct ev_loop *loop |
59 | # define EV_P_ EV_P, |
91 | # define EV_P_ EV_P, |
60 | # define EV_A loop |
92 | # define EV_A loop |
61 | # define EV_A_ EV_A, |
93 | # define EV_A_ EV_A, |
62 | # define EV_DEFAULT_A ev_default_loop (0) |
94 | # define EV_DEFAULT ev_default_loop (0) |
63 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
95 | # define EV_DEFAULT_ EV_DEFAULT, |
64 | #else |
96 | #else |
65 | # define EV_P void |
97 | # define EV_P void |
66 | # define EV_P_ |
98 | # define EV_P_ |
67 | # define EV_A |
99 | # define EV_A |
68 | # define EV_A_ |
100 | # define EV_A_ |
|
|
101 | # define EV_DEFAULT |
69 | # define EV_DEFAULT_A |
102 | # define EV_DEFAULT_ |
70 | # define EV_DEFAULT_A_ |
103 | |
|
|
104 | # undef EV_EMBED_ENABLE |
71 | #endif |
105 | #endif |
72 | |
106 | |
73 | /* eventmask, revents, events... */ |
107 | /* eventmask, revents, events... */ |
74 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
108 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
75 | #define EV_NONE 0x00 |
|
|
76 | #define EV_READ 0x01 /* io only */ |
109 | #define EV_NONE 0x00L /* no events */ |
|
|
110 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
|
|
111 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
77 | #define EV_WRITE 0x02 /* io only */ |
112 | #define EV_IOFDSET 0x80L /* internal use only */ |
78 | #define EV_TIMEOUT 0x000100 /* timer only */ |
113 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
79 | #define EV_PERIODIC 0x000200 /* periodic timer only */ |
114 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
80 | #define EV_SIGNAL 0x000400 /* signal only */ |
115 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
81 | #define EV_IDLE 0x000800 /* idle only */ |
|
|
82 | #define EV_CHECK 0x001000 /* check only */ |
|
|
83 | #define EV_PREPARE 0x002000 /* prepare only */ |
|
|
84 | #define EV_CHILD 0x004000 /* child/pid only */ |
116 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
|
|
117 | #define EV_STAT 0x00001000L /* stat data changed */ |
|
|
118 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
|
|
119 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
|
|
120 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
|
|
121 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
|
|
122 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
85 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
123 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
86 | |
124 | |
87 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
125 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
88 | #ifndef EV_COMMON |
126 | #ifndef EV_COMMON |
89 | # define EV_COMMON void *data |
127 | # define EV_COMMON void *data; |
90 | #endif |
128 | #endif |
91 | #ifndef EV_PROTOTYPES |
129 | #ifndef EV_PROTOTYPES |
92 | # define EV_PROTOTYPES 1 |
130 | # define EV_PROTOTYPES 1 |
93 | #endif |
131 | #endif |
94 | |
132 | |
95 | #define EV_VERSION_MAJOR 1 |
133 | #define EV_VERSION_MAJOR 2 |
96 | #define EV_VERSION_MINOR 1 |
134 | #define EV_VERSION_MINOR 0 |
97 | |
135 | |
98 | #ifndef EV_CB_DECLARE |
136 | #ifndef EV_CB_DECLARE |
99 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
137 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
100 | #endif |
138 | #endif |
101 | #ifndef EV_CB_INVOKE |
139 | #ifndef EV_CB_INVOKE |
… | |
… | |
112 | /* shared by all watchers */ |
150 | /* shared by all watchers */ |
113 | #define EV_WATCHER(type) \ |
151 | #define EV_WATCHER(type) \ |
114 | int active; /* private */ \ |
152 | int active; /* private */ \ |
115 | int pending; /* private */ \ |
153 | int pending; /* private */ \ |
116 | int priority; /* private */ \ |
154 | int priority; /* private */ \ |
117 | EV_COMMON; /* rw */ \ |
155 | EV_COMMON /* rw */ \ |
118 | EV_CB_DECLARE (type) /* private */ |
156 | EV_CB_DECLARE (type) /* private */ |
119 | |
157 | |
120 | #define EV_WATCHER_LIST(type) \ |
158 | #define EV_WATCHER_LIST(type) \ |
121 | EV_WATCHER (type); \ |
159 | EV_WATCHER (type) \ |
122 | struct ev_watcher_list *next /* private */ |
160 | struct ev_watcher_list *next; /* private */ |
123 | |
161 | |
124 | #define EV_WATCHER_TIME(type) \ |
162 | #define EV_WATCHER_TIME(type) \ |
125 | EV_WATCHER (type); \ |
163 | EV_WATCHER (type) \ |
126 | ev_tstamp at /* private */ |
164 | ev_tstamp at; /* private */ |
127 | |
165 | |
128 | /* base class, nothing to see here unless you subclass */ |
166 | /* base class, nothing to see here unless you subclass */ |
129 | struct ev_watcher |
167 | typedef struct ev_watcher |
130 | { |
168 | { |
131 | EV_WATCHER (ev_watcher); |
169 | EV_WATCHER (ev_watcher) |
132 | }; |
170 | } ev_watcher; |
133 | |
171 | |
134 | /* base class, nothing to see here unless you subclass */ |
172 | /* base class, nothing to see here unless you subclass */ |
135 | struct ev_watcher_list |
173 | typedef struct ev_watcher_list |
136 | { |
174 | { |
137 | EV_WATCHER_LIST (ev_watcher_list); |
175 | EV_WATCHER_LIST (ev_watcher_list) |
138 | }; |
176 | } ev_watcher_list; |
139 | |
177 | |
140 | /* base class, nothing to see here unless you subclass */ |
178 | /* base class, nothing to see here unless you subclass */ |
141 | struct ev_watcher_time |
179 | typedef struct ev_watcher_time |
142 | { |
180 | { |
143 | EV_WATCHER_TIME (ev_watcher_time); |
181 | EV_WATCHER_TIME (ev_watcher_time) |
144 | }; |
182 | } ev_watcher_time; |
|
|
183 | |
|
|
184 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
185 | /* revent EV_READ, EV_WRITE */ |
|
|
186 | typedef struct ev_io |
|
|
187 | { |
|
|
188 | EV_WATCHER_LIST (ev_io) |
|
|
189 | |
|
|
190 | int fd; /* ro */ |
|
|
191 | int events; /* ro */ |
|
|
192 | } ev_io; |
145 | |
193 | |
146 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
194 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
147 | /* revent EV_TIMEOUT */ |
195 | /* revent EV_TIMEOUT */ |
148 | struct ev_timer |
196 | typedef struct ev_timer |
149 | { |
197 | { |
150 | EV_WATCHER_TIME (ev_timer); |
198 | EV_WATCHER_TIME (ev_timer) |
151 | |
199 | |
152 | ev_tstamp repeat; /* rw */ |
200 | ev_tstamp repeat; /* rw */ |
153 | }; |
201 | } ev_timer; |
154 | |
202 | |
155 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
203 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
156 | /* revent EV_PERIODIC */ |
204 | /* revent EV_PERIODIC */ |
157 | struct ev_periodic |
205 | typedef struct ev_periodic |
158 | { |
206 | { |
159 | EV_WATCHER_TIME (ev_periodic); |
207 | EV_WATCHER_TIME (ev_periodic) |
160 | |
208 | |
|
|
209 | ev_tstamp offset; /* rw */ |
161 | ev_tstamp interval; /* rw */ |
210 | ev_tstamp interval; /* rw */ |
162 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
211 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
163 | }; |
212 | } ev_periodic; |
164 | |
|
|
165 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
166 | /* revent EV_READ, EV_WRITE */ |
|
|
167 | struct ev_io |
|
|
168 | { |
|
|
169 | EV_WATCHER_LIST (ev_io); |
|
|
170 | |
|
|
171 | int fd; /* ro */ |
|
|
172 | int events; /* ro */ |
|
|
173 | }; |
|
|
174 | |
213 | |
175 | /* invoked when the given signal has been received */ |
214 | /* invoked when the given signal has been received */ |
176 | /* revent EV_SIGNAL */ |
215 | /* revent EV_SIGNAL */ |
177 | struct ev_signal |
216 | typedef struct ev_signal |
178 | { |
217 | { |
179 | EV_WATCHER_LIST (ev_signal); |
218 | EV_WATCHER_LIST (ev_signal) |
180 | |
219 | |
181 | int signum; /* ro */ |
220 | int signum; /* ro */ |
182 | }; |
221 | } ev_signal; |
183 | |
222 | |
|
|
223 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
|
|
224 | /* revent EV_CHILD */ |
|
|
225 | /* does not support priorities */ |
|
|
226 | typedef struct ev_child |
|
|
227 | { |
|
|
228 | EV_WATCHER_LIST (ev_child) |
|
|
229 | |
|
|
230 | int pid; /* ro */ |
|
|
231 | int rpid; /* rw, holds the received pid */ |
|
|
232 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
233 | } ev_child; |
|
|
234 | |
|
|
235 | #if EV_STAT_ENABLE |
|
|
236 | /* st_nlink = 0 means missing file or other error */ |
|
|
237 | # ifdef _WIN32 |
|
|
238 | typedef struct _stati64 ev_statdata; |
|
|
239 | # else |
|
|
240 | typedef struct stat ev_statdata; |
|
|
241 | # endif |
|
|
242 | |
|
|
243 | /* invoked each time the stat data changes for a given path */ |
|
|
244 | /* revent EV_STAT */ |
|
|
245 | typedef struct ev_stat |
|
|
246 | { |
|
|
247 | EV_WATCHER_LIST (ev_stat) |
|
|
248 | |
|
|
249 | ev_timer timer; /* private */ |
|
|
250 | ev_tstamp interval; /* ro */ |
|
|
251 | const char *path; /* ro */ |
|
|
252 | ev_statdata prev; /* ro */ |
|
|
253 | ev_statdata attr; /* ro */ |
|
|
254 | |
|
|
255 | int wd; /* wd for inotify, fd for kqueue */ |
|
|
256 | } ev_stat; |
|
|
257 | #endif |
|
|
258 | |
|
|
259 | #if EV_IDLE_ENABLE |
184 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
260 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
185 | /* revent EV_IDLE */ |
261 | /* revent EV_IDLE */ |
186 | struct ev_idle |
262 | typedef struct ev_idle |
187 | { |
263 | { |
188 | EV_WATCHER (ev_idle); |
264 | EV_WATCHER (ev_idle) |
189 | }; |
265 | } ev_idle; |
|
|
266 | #endif |
190 | |
267 | |
191 | /* invoked for each run of the mainloop, just before the blocking call */ |
268 | /* invoked for each run of the mainloop, just before the blocking call */ |
192 | /* you can still change events in any way you like */ |
269 | /* you can still change events in any way you like */ |
193 | /* revent EV_PREPARE */ |
270 | /* revent EV_PREPARE */ |
194 | struct ev_prepare |
271 | typedef struct ev_prepare |
195 | { |
272 | { |
196 | EV_WATCHER (ev_prepare); |
273 | EV_WATCHER (ev_prepare) |
197 | }; |
274 | } ev_prepare; |
198 | |
275 | |
199 | /* invoked for each run of the mainloop, just after the blocking call */ |
276 | /* invoked for each run of the mainloop, just after the blocking call */ |
200 | /* revent EV_CHECK */ |
277 | /* revent EV_CHECK */ |
201 | struct ev_check |
278 | typedef struct ev_check |
202 | { |
279 | { |
203 | EV_WATCHER (ev_check); |
280 | EV_WATCHER (ev_check) |
204 | }; |
281 | } ev_check; |
205 | |
282 | |
206 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
283 | #if EV_FORK_ENABLE |
207 | /* revent EV_CHILD */ |
284 | /* the callback gets invoked before check in the child process when a fork was detected */ |
208 | /* does not support priorities */ |
285 | typedef struct ev_fork |
209 | struct ev_child |
|
|
210 | { |
286 | { |
211 | EV_WATCHER_LIST (ev_child); |
287 | EV_WATCHER (ev_fork) |
|
|
288 | } ev_fork; |
|
|
289 | #endif |
212 | |
290 | |
213 | int pid; /* ro */ |
291 | #if EV_EMBED_ENABLE |
214 | int rpid; /* rw, holds the received pid */ |
292 | /* used to embed an event loop inside another */ |
215 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
293 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
216 | }; |
294 | typedef struct ev_embed |
|
|
295 | { |
|
|
296 | EV_WATCHER (ev_embed) |
|
|
297 | |
|
|
298 | struct ev_loop *other; /* ro */ |
|
|
299 | ev_io io; /* private */ |
|
|
300 | ev_prepare prepare; /* private */ |
|
|
301 | ev_check check; /* unused */ |
|
|
302 | ev_timer timer; /* unused */ |
|
|
303 | ev_periodic periodic; /* unused */ |
|
|
304 | ev_idle idle; /* unused */ |
|
|
305 | ev_fork fork; /* unused */ |
|
|
306 | } ev_embed; |
|
|
307 | #endif |
217 | |
308 | |
218 | /* the presence of this union forces similar struct layout */ |
309 | /* the presence of this union forces similar struct layout */ |
219 | union ev_any_watcher |
310 | union ev_any_watcher |
220 | { |
311 | { |
221 | struct ev_watcher w; |
312 | struct ev_watcher w; |
222 | struct ev_watcher_list wl; |
313 | struct ev_watcher_list wl; |
223 | |
314 | |
224 | struct ev_io io; |
315 | struct ev_io io; |
225 | struct ev_timer timer; |
316 | struct ev_timer timer; |
226 | struct ev_periodic periodic; |
317 | struct ev_periodic periodic; |
|
|
318 | struct ev_signal signal; |
|
|
319 | struct ev_child child; |
|
|
320 | #if EV_STAT_ENABLE |
|
|
321 | struct ev_stat stat; |
|
|
322 | #endif |
|
|
323 | #if EV_IDLE_ENABLE |
227 | struct ev_idle idle; |
324 | struct ev_idle idle; |
|
|
325 | #endif |
228 | struct ev_prepare prepare; |
326 | struct ev_prepare prepare; |
229 | struct ev_check check; |
327 | struct ev_check check; |
230 | struct ev_signal signal; |
328 | #if EV_FORK_ENABLE |
231 | struct ev_child child; |
329 | struct ev_fork fork; |
|
|
330 | #endif |
|
|
331 | #if EV_EMBED_ENABLE |
|
|
332 | struct ev_embed embed; |
|
|
333 | #endif |
232 | }; |
334 | }; |
233 | |
335 | |
234 | #define EVMETHOD_AUTO 0 /* consults environment */ |
336 | /* bits for ev_default_loop and ev_loop_new */ |
235 | #define EVMETHOD_SELECT 1 |
337 | /* the default */ |
236 | #define EVMETHOD_POLL 2 |
338 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
237 | #define EVMETHOD_EPOLL 4 |
339 | /* flag bits */ |
238 | #define EVMETHOD_KQUEUE 8 |
340 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
239 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
341 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
240 | #define EVMETHOD_PORT 32 /* NYI */ |
342 | /* method bits to be ored together */ |
241 | #define EVMETHOD_WIN32 64 /* NYI */ |
343 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
242 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
344 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
|
|
345 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
|
|
346 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
|
|
347 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
|
|
348 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
243 | |
349 | |
244 | #if EV_PROTOTYPES |
350 | #if EV_PROTOTYPES |
245 | int ev_version_major (void); |
351 | int ev_version_major (void); |
246 | int ev_version_minor (void); |
352 | int ev_version_minor (void); |
247 | |
353 | |
|
|
354 | unsigned int ev_supported_backends (void); |
|
|
355 | unsigned int ev_recommended_backends (void); |
|
|
356 | unsigned int ev_embeddable_backends (void); |
|
|
357 | |
248 | ev_tstamp ev_time (void); |
358 | ev_tstamp ev_time (void); |
|
|
359 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
249 | |
360 | |
250 | /* Sets the allocation function to use, works like realloc. |
361 | /* Sets the allocation function to use, works like realloc. |
251 | * It is used to allocate and free memory. |
362 | * It is used to allocate and free memory. |
252 | * If it returns zero when memory needs to be allocated, the library might abort |
363 | * If it returns zero when memory needs to be allocated, the library might abort |
253 | * or take some potentially destructive action. |
364 | * or take some potentially destructive action. |
… | |
… | |
262 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
373 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
263 | |
374 | |
264 | # if EV_MULTIPLICITY |
375 | # if EV_MULTIPLICITY |
265 | /* the default loop is the only one that handles signals and child watchers */ |
376 | /* the default loop is the only one that handles signals and child watchers */ |
266 | /* you can call this as often as you like */ |
377 | /* you can call this as often as you like */ |
267 | struct ev_loop *ev_default_loop (int methods); /* returns default loop */ |
378 | static struct ev_loop * |
|
|
379 | ev_default_loop (unsigned int flags) |
|
|
380 | { |
|
|
381 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
382 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
|
|
383 | |
|
|
384 | if (!ev_default_loop_ptr) |
|
|
385 | ev_default_loop_init (flags); |
|
|
386 | |
|
|
387 | return ev_default_loop_ptr; |
|
|
388 | } |
268 | |
389 | |
269 | /* create and destroy alternative loops that don't handle signals */ |
390 | /* create and destroy alternative loops that don't handle signals */ |
270 | struct ev_loop *ev_loop_new (int methods); |
391 | struct ev_loop *ev_loop_new (unsigned int flags); |
271 | void ev_loop_destroy (EV_P); |
392 | void ev_loop_destroy (EV_P); |
272 | void ev_loop_fork (EV_P); |
393 | void ev_loop_fork (EV_P); |
273 | |
394 | |
274 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
395 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
275 | |
396 | |
276 | # else |
397 | # else |
277 | |
398 | |
278 | int ev_default_loop (int methods); /* returns true when successful */ |
399 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
279 | |
400 | |
280 | static ev_tstamp |
401 | static ev_tstamp |
281 | ev_now () |
402 | ev_now (void) |
282 | { |
403 | { |
283 | extern ev_tstamp ev_rt_now; |
404 | extern ev_tstamp ev_rt_now; |
284 | |
405 | |
285 | return ev_rt_now; |
406 | return ev_rt_now; |
286 | } |
407 | } |
… | |
… | |
291 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
412 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
292 | /* you can call it in either the parent or the child */ |
413 | /* you can call it in either the parent or the child */ |
293 | /* you can actually call it at any time, anywhere :) */ |
414 | /* you can actually call it at any time, anywhere :) */ |
294 | void ev_default_fork (void); |
415 | void ev_default_fork (void); |
295 | |
416 | |
296 | int ev_method (EV_P); |
417 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
|
|
418 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
297 | #endif |
419 | #endif |
298 | |
420 | |
299 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
421 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
300 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
422 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
|
|
423 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
301 | #define EVUNLOOP_ONCE 1 /* unloop once */ |
424 | #define EVUNLOOP_ONE 1 /* unloop once */ |
302 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
425 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
303 | |
426 | |
304 | #if EV_PROTOTYPES |
427 | #if EV_PROTOTYPES |
305 | void ev_loop (EV_P_ int flags); |
428 | void ev_loop (EV_P_ int flags); |
306 | 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 */ |
429 | 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 */ |
|
|
430 | |
|
|
431 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
|
|
432 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
307 | |
433 | |
308 | /* |
434 | /* |
309 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
435 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
310 | * keeps one reference. if you have a long-runing watcher you never unregister that |
436 | * keeps one reference. if you have a long-runing watcher you never unregister that |
311 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
437 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
… | |
… | |
318 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
444 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
319 | #endif |
445 | #endif |
320 | |
446 | |
321 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
447 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
322 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
448 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
323 | #define ev_init(ev,cb_) do { \ |
449 | #define ev_init(ev,cb_) do { \ |
324 | ((struct ev_watcher *)(void *)(ev))->active = \ |
450 | ((ev_watcher *)(void *)(ev))->active = \ |
325 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
451 | ((ev_watcher *)(void *)(ev))->pending = \ |
326 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
452 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
327 | ev_set_cb ((ev), cb_); \ |
453 | ev_set_cb ((ev), cb_); \ |
328 | } while (0) |
454 | } while (0) |
329 | |
455 | |
330 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
456 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
331 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
457 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
332 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
458 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
333 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
459 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
|
|
460 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
|
|
461 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
334 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
462 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
335 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
463 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
336 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
464 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
337 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
465 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
|
|
466 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
338 | |
467 | |
339 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
468 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
340 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
469 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
341 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
470 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
342 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
471 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
|
|
472 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
|
|
473 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
343 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
474 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
344 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
475 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
345 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
476 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
346 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
477 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
|
|
478 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
347 | |
479 | |
348 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
480 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
349 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
481 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
350 | |
482 | |
351 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
483 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
352 | #define ev_cb(ev) (ev)->cb /* rw */ |
484 | #define ev_cb(ev) (ev)->cb /* rw */ |
353 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
485 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
354 | |
486 | |
355 | #ifndef ev_set_cb |
487 | #ifndef ev_set_cb |
356 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
488 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
357 | #endif |
489 | #endif |
358 | |
490 | |
… | |
… | |
363 | /* feeds an event into a watcher as if the event actually occured */ |
495 | /* feeds an event into a watcher as if the event actually occured */ |
364 | /* accepts any ev_watcher type */ |
496 | /* accepts any ev_watcher type */ |
365 | void ev_feed_event (EV_P_ void *w, int revents); |
497 | void ev_feed_event (EV_P_ void *w, int revents); |
366 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
498 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
367 | void ev_feed_signal_event (EV_P_ int signum); |
499 | void ev_feed_signal_event (EV_P_ int signum); |
|
|
500 | void ev_invoke (EV_P_ void *w, int revents); |
|
|
501 | int ev_clear_pending (EV_P_ void *w); |
368 | |
502 | |
369 | void ev_io_start (EV_P_ struct ev_io *w); |
503 | void ev_io_start (EV_P_ ev_io *w); |
370 | void ev_io_stop (EV_P_ struct ev_io *w); |
504 | void ev_io_stop (EV_P_ ev_io *w); |
371 | |
505 | |
372 | void ev_timer_start (EV_P_ struct ev_timer *w); |
506 | void ev_timer_start (EV_P_ ev_timer *w); |
373 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
507 | void ev_timer_stop (EV_P_ ev_timer *w); |
374 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
508 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
375 | void ev_timer_again (EV_P_ struct ev_timer *w); |
509 | void ev_timer_again (EV_P_ ev_timer *w); |
376 | |
510 | |
377 | #if EV_PERIODICS |
511 | #if EV_PERIODIC_ENABLE |
378 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
512 | void ev_periodic_start (EV_P_ ev_periodic *w); |
379 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
513 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
380 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
514 | void ev_periodic_again (EV_P_ ev_periodic *w); |
381 | #endif |
515 | #endif |
382 | |
|
|
383 | void ev_idle_start (EV_P_ struct ev_idle *w); |
|
|
384 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
|
|
385 | |
|
|
386 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
|
|
387 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
|
|
388 | |
|
|
389 | void ev_check_start (EV_P_ struct ev_check *w); |
|
|
390 | void ev_check_stop (EV_P_ struct ev_check *w); |
|
|
391 | |
516 | |
392 | /* only supported in the default loop */ |
517 | /* only supported in the default loop */ |
393 | void ev_signal_start (EV_P_ struct ev_signal *w); |
518 | void ev_signal_start (EV_P_ ev_signal *w); |
394 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
519 | void ev_signal_stop (EV_P_ ev_signal *w); |
395 | |
520 | |
396 | /* only supported in the default loop */ |
521 | /* only supported in the default loop */ |
397 | void ev_child_start (EV_P_ struct ev_child *w); |
522 | void ev_child_start (EV_P_ ev_child *w); |
398 | void ev_child_stop (EV_P_ struct ev_child *w); |
523 | void ev_child_stop (EV_P_ ev_child *w); |
|
|
524 | |
|
|
525 | # if EV_STAT_ENABLE |
|
|
526 | void ev_stat_start (EV_P_ ev_stat *w); |
|
|
527 | void ev_stat_stop (EV_P_ ev_stat *w); |
|
|
528 | void ev_stat_stat (EV_P_ ev_stat *w); |
|
|
529 | # endif |
|
|
530 | |
|
|
531 | # if EV_IDLE_ENABLE |
|
|
532 | void ev_idle_start (EV_P_ ev_idle *w); |
|
|
533 | void ev_idle_stop (EV_P_ ev_idle *w); |
|
|
534 | # endif |
|
|
535 | |
|
|
536 | void ev_prepare_start (EV_P_ ev_prepare *w); |
|
|
537 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
|
|
538 | |
|
|
539 | void ev_check_start (EV_P_ ev_check *w); |
|
|
540 | void ev_check_stop (EV_P_ ev_check *w); |
|
|
541 | |
|
|
542 | # if EV_FORK_ENABLE |
|
|
543 | void ev_fork_start (EV_P_ ev_fork *w); |
|
|
544 | void ev_fork_stop (EV_P_ ev_fork *w); |
|
|
545 | # endif |
|
|
546 | |
|
|
547 | # if EV_EMBED_ENABLE |
|
|
548 | /* only supported when loop to be embedded is in fact embeddable */ |
|
|
549 | void ev_embed_start (EV_P_ ev_embed *w); |
|
|
550 | void ev_embed_stop (EV_P_ ev_embed *w); |
|
|
551 | void ev_embed_sweep (EV_P_ ev_embed *w); |
|
|
552 | # endif |
|
|
553 | |
399 | #endif |
554 | #endif |
400 | |
555 | |
401 | #ifdef __cplusplus |
556 | #ifdef __cplusplus |
402 | } |
557 | } |
403 | #endif |
558 | #endif |