… | |
… | |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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. |
27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | |
29 | |
30 | #ifndef EV_H |
30 | #ifndef EV_H__ |
31 | #define EV_H |
31 | #define EV_H__ |
32 | |
32 | |
33 | #ifdef __cplusplus |
33 | #ifdef __cplusplus |
34 | extern "C" { |
34 | extern "C" { |
35 | #endif |
35 | #endif |
36 | |
36 | |
… | |
… | |
44 | # define EV_MAXPRI +2 |
44 | # define EV_MAXPRI +2 |
45 | #endif |
45 | #endif |
46 | |
46 | |
47 | #ifndef EV_MULTIPLICITY |
47 | #ifndef EV_MULTIPLICITY |
48 | # define EV_MULTIPLICITY 1 |
48 | # define EV_MULTIPLICITY 1 |
|
|
49 | #endif |
|
|
50 | |
|
|
51 | #ifndef EV_PERIODIC_ENABLE |
|
|
52 | # define EV_PERIODIC_ENABLE 1 |
|
|
53 | #endif |
|
|
54 | |
|
|
55 | #ifndef EV_STAT_ENABLE |
|
|
56 | # define EV_STAT_ENABLE 1 |
|
|
57 | #endif |
|
|
58 | |
|
|
59 | #ifndef EV_FORK_ENABLE |
|
|
60 | # define EV_FORK_ENABLE 1 |
|
|
61 | #endif |
|
|
62 | |
|
|
63 | #ifndef EV_EMBED_ENABLE |
|
|
64 | # define EV_EMBED_ENABLE 1 |
|
|
65 | #endif |
|
|
66 | |
|
|
67 | /*****************************************************************************/ |
|
|
68 | |
|
|
69 | #if EV_STAT_ENABLE |
|
|
70 | # include <sys/stat.h> |
49 | #endif |
71 | #endif |
50 | |
72 | |
51 | /* support multiple event loops? */ |
73 | /* support multiple event loops? */ |
52 | #if EV_MULTIPLICITY |
74 | #if EV_MULTIPLICITY |
53 | struct ev_loop; |
75 | struct ev_loop; |
54 | # define EV_P struct ev_loop *loop |
76 | # define EV_P struct ev_loop *loop |
55 | # define EV_P_ EV_P, |
77 | # define EV_P_ EV_P, |
56 | # define EV_A loop |
78 | # define EV_A loop |
57 | # define EV_A_ EV_A, |
79 | # define EV_A_ EV_A, |
|
|
80 | # define EV_DEFAULT ev_default_loop (0) |
|
|
81 | # define EV_DEFAULT_ EV_DEFAULT, |
58 | #else |
82 | #else |
59 | # define EV_P void |
83 | # define EV_P void |
60 | # define EV_P_ |
84 | # define EV_P_ |
61 | # define EV_A |
85 | # define EV_A |
62 | # define EV_A_ |
86 | # define EV_A_ |
|
|
87 | # define EV_DEFAULT |
|
|
88 | # define EV_DEFAULT_ |
|
|
89 | |
|
|
90 | # undef EV_EMBED_ENABLE |
63 | #endif |
91 | #endif |
64 | |
92 | |
65 | /* eventmask, revents, events... */ |
93 | /* eventmask, revents, events... */ |
66 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
94 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
67 | #define EV_NONE 0x00 |
95 | #define EV_NONE 0x00L /* no events */ |
68 | #define EV_READ 0x01 |
96 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
69 | #define EV_WRITE 0x02 |
97 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
70 | #define EV_TIMEOUT 0x000100 |
98 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
71 | #define EV_PERIODIC 0x000200 |
99 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
72 | #define EV_SIGNAL 0x000400 |
100 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
73 | #define EV_IDLE 0x000800 |
101 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
74 | #define EV_CHECK 0x001000 |
102 | #define EV_STAT 0x00001000L /* stat data changed */ |
75 | #define EV_PREPARE 0x002000 |
103 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
76 | #define EV_CHILD 0x004000 |
104 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
|
|
105 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
|
|
106 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
|
|
107 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
77 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
108 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
78 | |
109 | |
79 | /* can be used to add custom fields to all watchers */ |
110 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
80 | #ifndef EV_COMMON |
111 | #ifndef EV_COMMON |
81 | # define EV_COMMON void *data |
112 | # define EV_COMMON void *data; |
82 | #endif |
113 | #endif |
83 | #ifndef EV_PROTOTYPES |
114 | #ifndef EV_PROTOTYPES |
84 | # define EV_PROTOTYPES 1 |
115 | # define EV_PROTOTYPES 1 |
85 | #endif |
116 | #endif |
86 | |
117 | |
87 | #define EV_VERSION_MAJOR 1 |
118 | #define EV_VERSION_MAJOR 1 |
88 | #define EV_VERSION_MINOR 1 |
119 | #define EV_VERSION_MINOR 1 |
|
|
120 | |
|
|
121 | #ifndef EV_CB_DECLARE |
|
|
122 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
|
|
123 | #endif |
|
|
124 | #ifndef EV_CB_INVOKE |
|
|
125 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
|
|
126 | #endif |
89 | |
127 | |
90 | /* |
128 | /* |
91 | * struct member types: |
129 | * struct member types: |
92 | * private: you can look at them, but not change them, and they might not mean anything to you. |
130 | * private: you can look at them, but not change them, and they might not mean anything to you. |
93 | * ro: can be read anytime, but only changed when the watcher isn't active |
131 | * ro: can be read anytime, but only changed when the watcher isn't active |
… | |
… | |
97 | /* shared by all watchers */ |
135 | /* shared by all watchers */ |
98 | #define EV_WATCHER(type) \ |
136 | #define EV_WATCHER(type) \ |
99 | int active; /* private */ \ |
137 | int active; /* private */ \ |
100 | int pending; /* private */ \ |
138 | int pending; /* private */ \ |
101 | int priority; /* private */ \ |
139 | int priority; /* private */ \ |
102 | EV_COMMON; /* rw */ \ |
140 | EV_COMMON /* rw */ \ |
103 | void (*cb)(EV_P_ struct type *, int revents) /* private */ /* gets invoked with an eventmask */ |
141 | EV_CB_DECLARE (type) /* private */ |
104 | |
142 | |
105 | #define EV_WATCHER_LIST(type) \ |
143 | #define EV_WATCHER_LIST(type) \ |
106 | EV_WATCHER (type); \ |
144 | EV_WATCHER (type) \ |
107 | struct ev_watcher_list *next /* private */ |
145 | struct ev_watcher_list *next; /* private */ |
108 | |
146 | |
109 | #define EV_WATCHER_TIME(type) \ |
147 | #define EV_WATCHER_TIME(type) \ |
110 | EV_WATCHER (type); \ |
148 | EV_WATCHER (type) \ |
111 | ev_tstamp at /* private */ |
149 | ev_tstamp at; /* private */ |
112 | |
150 | |
113 | /* base class, nothing to see here unless you subclass */ |
151 | /* base class, nothing to see here unless you subclass */ |
114 | struct ev_watcher { |
152 | typedef struct ev_watcher |
|
|
153 | { |
115 | EV_WATCHER (ev_watcher); |
154 | EV_WATCHER (ev_watcher) |
116 | }; |
155 | } ev_watcher; |
117 | |
156 | |
118 | /* base class, nothing to see here unless you subclass */ |
157 | /* base class, nothing to see here unless you subclass */ |
119 | struct ev_watcher_list { |
158 | typedef struct ev_watcher_list |
|
|
159 | { |
120 | EV_WATCHER_LIST (ev_watcher_list); |
160 | EV_WATCHER_LIST (ev_watcher_list) |
121 | }; |
161 | } ev_watcher_list; |
122 | |
162 | |
123 | /* base class, nothing to see here unless you subclass */ |
163 | /* base class, nothing to see here unless you subclass */ |
124 | struct ev_watcher_time { |
164 | typedef struct ev_watcher_time |
|
|
165 | { |
125 | EV_WATCHER_TIME (ev_watcher_time); |
166 | EV_WATCHER_TIME (ev_watcher_time) |
126 | }; |
167 | } ev_watcher_time; |
|
|
168 | |
|
|
169 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
170 | /* revent EV_READ, EV_WRITE */ |
|
|
171 | typedef struct ev_io |
|
|
172 | { |
|
|
173 | EV_WATCHER_LIST (ev_io) |
|
|
174 | |
|
|
175 | int fd; /* ro */ |
|
|
176 | int events; /* ro */ |
|
|
177 | } ev_io; |
127 | |
178 | |
128 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
179 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
129 | /* revent EV_TIMEOUT */ |
180 | /* revent EV_TIMEOUT */ |
130 | struct ev_timer |
181 | typedef struct ev_timer |
131 | { |
182 | { |
132 | EV_WATCHER_TIME (ev_timer); |
183 | EV_WATCHER_TIME (ev_timer) |
133 | |
184 | |
134 | ev_tstamp repeat; /* rw */ |
185 | ev_tstamp repeat; /* rw */ |
135 | }; |
186 | } ev_timer; |
136 | |
187 | |
137 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
188 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
138 | /* revent EV_PERIODIC */ |
189 | /* revent EV_PERIODIC */ |
139 | struct ev_periodic |
190 | typedef struct ev_periodic |
140 | { |
191 | { |
141 | EV_WATCHER_TIME (ev_periodic); |
192 | EV_WATCHER_TIME (ev_periodic) |
142 | |
193 | |
143 | ev_tstamp interval; /* rw */ |
194 | ev_tstamp interval; /* rw */ |
144 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
195 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
145 | }; |
196 | } ev_periodic; |
146 | |
|
|
147 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
148 | /* revent EV_READ, EV_WRITE */ |
|
|
149 | struct ev_io |
|
|
150 | { |
|
|
151 | EV_WATCHER_LIST (ev_io); |
|
|
152 | |
|
|
153 | int fd; /* ro */ |
|
|
154 | int events; /* ro */ |
|
|
155 | }; |
|
|
156 | |
197 | |
157 | /* invoked when the given signal has been received */ |
198 | /* invoked when the given signal has been received */ |
158 | /* revent EV_SIGNAL */ |
199 | /* revent EV_SIGNAL */ |
159 | struct ev_signal |
200 | typedef struct ev_signal |
160 | { |
201 | { |
161 | EV_WATCHER_LIST (ev_signal); |
202 | EV_WATCHER_LIST (ev_signal) |
162 | |
203 | |
163 | int signum; /* ro */ |
204 | int signum; /* ro */ |
164 | }; |
205 | } ev_signal; |
|
|
206 | |
|
|
207 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
|
|
208 | /* revent EV_CHILD */ |
|
|
209 | /* does not support priorities */ |
|
|
210 | typedef struct ev_child |
|
|
211 | { |
|
|
212 | EV_WATCHER_LIST (ev_child) |
|
|
213 | |
|
|
214 | int pid; /* ro */ |
|
|
215 | int rpid; /* rw, holds the received pid */ |
|
|
216 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
217 | } ev_child; |
|
|
218 | |
|
|
219 | #if EV_STAT_ENABLE |
|
|
220 | /* st_nlink = 0 means missing file or other error */ |
|
|
221 | #ifdef _WIN32 |
|
|
222 | typedef struct _stati64 ev_statdata; |
|
|
223 | #else |
|
|
224 | typedef struct stat ev_statdata; |
|
|
225 | #endif |
|
|
226 | |
|
|
227 | /* invoked each time the stat data changes for a given path */ |
|
|
228 | /* revent EV_STAT */ |
|
|
229 | typedef struct ev_stat |
|
|
230 | { |
|
|
231 | EV_WATCHER (ev_stat) |
|
|
232 | |
|
|
233 | ev_timer timer; /* private */ |
|
|
234 | ev_tstamp interval; /* ro */ |
|
|
235 | const char *path; /* ro */ |
|
|
236 | ev_statdata prev; /* ro */ |
|
|
237 | ev_statdata attr; /* ro */ |
|
|
238 | } ev_stat; |
|
|
239 | #endif |
165 | |
240 | |
166 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
241 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
167 | /* revent EV_IDLE */ |
242 | /* revent EV_IDLE */ |
168 | struct ev_idle |
243 | typedef struct ev_idle |
169 | { |
244 | { |
170 | EV_WATCHER (ev_idle); |
245 | EV_WATCHER (ev_idle) |
171 | }; |
246 | } ev_idle; |
172 | |
247 | |
173 | /* invoked for each run of the mainloop, just before the blocking call */ |
248 | /* invoked for each run of the mainloop, just before the blocking call */ |
174 | /* you can still change events in any way you like */ |
249 | /* you can still change events in any way you like */ |
175 | /* revent EV_PREPARE */ |
250 | /* revent EV_PREPARE */ |
176 | struct ev_prepare |
251 | typedef struct ev_prepare |
177 | { |
252 | { |
178 | EV_WATCHER (ev_prepare); |
253 | EV_WATCHER (ev_prepare) |
179 | }; |
254 | } ev_prepare; |
180 | |
255 | |
181 | /* invoked for each run of the mainloop, just after the blocking call */ |
256 | /* invoked for each run of the mainloop, just after the blocking call */ |
182 | /* revent EV_CHECK */ |
257 | /* revent EV_CHECK */ |
183 | struct ev_check |
258 | typedef struct ev_check |
184 | { |
259 | { |
185 | EV_WATCHER (ev_check); |
260 | EV_WATCHER (ev_check) |
186 | }; |
261 | } ev_check; |
187 | |
262 | |
188 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
263 | #if EV_FORK_ENABLE |
189 | /* revent EV_CHILD */ |
264 | /* the callback gets invoked before check in the child process when a fork was detected */ |
190 | /* does not support priorities */ |
265 | typedef struct ev_fork |
191 | struct ev_child |
|
|
192 | { |
266 | { |
193 | EV_WATCHER_LIST (ev_child); |
267 | EV_WATCHER (ev_fork) |
|
|
268 | } ev_fork; |
|
|
269 | #endif |
194 | |
270 | |
195 | int pid; /* ro */ |
271 | #if EV_EMBED_ENABLE |
196 | int rpid; /* rw, holds the received pid */ |
272 | /* used to embed an event loop inside another */ |
197 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
273 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
198 | }; |
274 | typedef struct ev_embed |
|
|
275 | { |
|
|
276 | EV_WATCHER (ev_embed) |
|
|
277 | |
|
|
278 | ev_io io; /* private */ |
|
|
279 | struct ev_loop *loop; /* ro */ |
|
|
280 | } ev_embed; |
|
|
281 | #endif |
199 | |
282 | |
200 | /* the presence of this union forces similar struct layout */ |
283 | /* the presence of this union forces similar struct layout */ |
201 | union ev_any_watcher |
284 | union ev_any_watcher |
202 | { |
285 | { |
203 | struct ev_watcher w; |
286 | struct ev_watcher w; |
204 | struct ev_watcher_list wl; |
287 | struct ev_watcher_list wl; |
|
|
288 | |
205 | struct ev_io io; |
289 | struct ev_io io; |
206 | struct ev_timer timer; |
290 | struct ev_timer timer; |
207 | struct ev_periodic periodic; |
291 | struct ev_periodic periodic; |
208 | struct ev_signal signal; |
292 | struct ev_signal signal; |
|
|
293 | struct ev_child child; |
|
|
294 | #if EV_STAT_ENABLE |
|
|
295 | struct ev_stat stat; |
|
|
296 | #endif |
209 | struct ev_idle idle; |
297 | struct ev_idle idle; |
210 | struct ev_child child; |
|
|
211 | struct ev_prepare prepare; |
298 | struct ev_prepare prepare; |
212 | struct ev_check check; |
299 | struct ev_check check; |
|
|
300 | #if EV_FORK_ENABLE |
|
|
301 | struct ev_fork fork; |
|
|
302 | #endif |
|
|
303 | #if EV_EMBED_ENABLE |
|
|
304 | struct ev_embed embed; |
|
|
305 | #endif |
213 | }; |
306 | }; |
214 | |
307 | |
215 | #define EVMETHOD_AUTO 0 /* consults environment */ |
308 | /* bits for ev_default_loop and ev_loop_new */ |
216 | #define EVMETHOD_SELECT 1 |
309 | /* the default */ |
217 | #define EVMETHOD_POLL 2 |
310 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
218 | #define EVMETHOD_EPOLL 4 |
311 | /* flag bits */ |
219 | #define EVMETHOD_KQUEUE 8 |
312 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
220 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
313 | /* method bits to be ored together */ |
221 | #define EVMETHOD_PORT 32 /* NYI */ |
314 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
222 | #define EVMETHOD_WIN32 64 /* NYI */ |
315 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
223 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
316 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
|
|
317 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
|
|
318 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
|
|
319 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
224 | |
320 | |
225 | #if EV_PROTOTYPES |
321 | #if EV_PROTOTYPES |
226 | int ev_version_major (void); |
322 | int ev_version_major (void); |
227 | int ev_version_minor (void); |
323 | int ev_version_minor (void); |
|
|
324 | |
|
|
325 | unsigned int ev_supported_backends (void); |
|
|
326 | unsigned int ev_recommended_backends (void); |
|
|
327 | unsigned int ev_embeddable_backends (void); |
228 | |
328 | |
229 | ev_tstamp ev_time (void); |
329 | ev_tstamp ev_time (void); |
230 | |
330 | |
231 | /* Sets the allocation function to use, works like realloc. |
331 | /* Sets the allocation function to use, works like realloc. |
232 | * It is used to allocate and free memory. |
332 | * It is used to allocate and free memory. |
… | |
… | |
243 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
343 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
244 | |
344 | |
245 | # if EV_MULTIPLICITY |
345 | # if EV_MULTIPLICITY |
246 | /* the default loop is the only one that handles signals and child watchers */ |
346 | /* the default loop is the only one that handles signals and child watchers */ |
247 | /* you can call this as often as you like */ |
347 | /* you can call this as often as you like */ |
248 | struct ev_loop *ev_default_loop (int methods); /* returns default loop */ |
348 | static struct ev_loop * |
|
|
349 | ev_default_loop (unsigned int flags) |
|
|
350 | { |
|
|
351 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
352 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
|
|
353 | |
|
|
354 | if (!ev_default_loop_ptr) |
|
|
355 | ev_default_loop_init (flags); |
|
|
356 | |
|
|
357 | return ev_default_loop_ptr; |
|
|
358 | } |
249 | |
359 | |
250 | /* create and destroy alternative loops that don't handle signals */ |
360 | /* create and destroy alternative loops that don't handle signals */ |
251 | struct ev_loop *ev_loop_new (int methods); |
361 | struct ev_loop *ev_loop_new (unsigned int flags); |
252 | void ev_loop_destroy (EV_P); |
362 | void ev_loop_destroy (EV_P); |
253 | void ev_loop_fork (EV_P); |
363 | void ev_loop_fork (EV_P); |
|
|
364 | |
|
|
365 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
366 | |
254 | # else |
367 | # else |
|
|
368 | |
255 | int ev_default_loop (int methods); /* returns true when successful */ |
369 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
|
|
370 | |
|
|
371 | static ev_tstamp |
|
|
372 | ev_now (void) |
|
|
373 | { |
|
|
374 | extern ev_tstamp ev_rt_now; |
|
|
375 | |
|
|
376 | return ev_rt_now; |
|
|
377 | } |
256 | # endif |
378 | # endif |
257 | |
379 | |
258 | void ev_default_destroy (void); /* destroy the default loop */ |
380 | void ev_default_destroy (void); /* destroy the default loop */ |
259 | /* this needs to be called after fork, to duplicate the default loop */ |
381 | /* this needs to be called after fork, to duplicate the default loop */ |
260 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
382 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
261 | /* you can call it in either the parent or the child */ |
383 | /* you can call it in either the parent or the child */ |
262 | /* you can actually call it at any time, anywhere :) */ |
384 | /* you can actually call it at any time, anywhere :) */ |
263 | void ev_default_fork (void); |
385 | void ev_default_fork (void); |
264 | |
386 | |
265 | int ev_method (EV_P); |
387 | unsigned int ev_backend (EV_P); |
266 | #endif |
388 | #endif |
267 | |
389 | |
268 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
390 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
269 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
391 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
|
|
392 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
270 | #define EVUNLOOP_ONCE 1 /* unloop once */ |
393 | #define EVUNLOOP_ONE 1 /* unloop once */ |
271 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
394 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
272 | |
395 | |
273 | #if EV_PROTOTYPES |
396 | #if EV_PROTOTYPES |
274 | void ev_loop (EV_P_ int flags); |
397 | void ev_loop (EV_P_ int flags); |
275 | 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 */ |
398 | 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 */ |
276 | |
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277 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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278 | |
399 | |
279 | /* |
400 | /* |
280 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
401 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
281 | * keeps one reference. if you have a long-runing watcher you never unregister that |
402 | * keeps one reference. if you have a long-runing watcher you never unregister that |
282 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
403 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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288 | /* if timeout is < 0, do wait indefinitely */ |
409 | /* if timeout is < 0, do wait indefinitely */ |
289 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
410 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
290 | #endif |
411 | #endif |
291 | |
412 | |
292 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
413 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
293 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
414 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
294 | #define ev_watcher_init(ev,cb_) do { \ |
415 | #define ev_init(ev,cb_) do { \ |
295 | ((struct ev_watcher *)(void *)(ev))->active = \ |
416 | ((ev_watcher *)(void *)(ev))->active = \ |
296 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
417 | ((ev_watcher *)(void *)(ev))->pending = \ |
297 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
418 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
298 | (ev)->cb = (cb_); \ |
419 | ev_set_cb ((ev), cb_); \ |
299 | } while (0) |
420 | } while (0) |
300 | |
421 | |
301 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
422 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
302 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
423 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
303 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
424 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
304 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
425 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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426 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
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427 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) |
305 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
428 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
306 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
429 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
307 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
430 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
308 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
431 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
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432 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
309 | |
433 | |
310 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
434 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
311 | #define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
435 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
312 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
436 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
313 | #define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
437 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
314 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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315 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
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316 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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317 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
438 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
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439 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
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440 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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441 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
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442 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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443 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
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444 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
318 | |
445 | |
319 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
446 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
320 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
447 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
321 | |
448 | |
322 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
449 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
323 | #define ev_cb(ev) (ev)->cb /* rw */ |
450 | #define ev_cb(ev) (ev)->cb /* rw */ |
324 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
451 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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452 | |
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453 | #ifndef ev_set_cb |
325 | #define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
454 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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455 | #endif |
326 | |
456 | |
327 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
457 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
328 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
458 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
329 | #if EV_PROTOTYPES |
459 | #if EV_PROTOTYPES |
330 | |
460 | |
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332 | /* accepts any ev_watcher type */ |
462 | /* accepts any ev_watcher type */ |
333 | void ev_feed_event (EV_P_ void *w, int revents); |
463 | void ev_feed_event (EV_P_ void *w, int revents); |
334 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
464 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
335 | void ev_feed_signal_event (EV_P_ int signum); |
465 | void ev_feed_signal_event (EV_P_ int signum); |
336 | |
466 | |
337 | void ev_io_start (EV_P_ struct ev_io *w); |
467 | void ev_io_start (EV_P_ ev_io *w); |
338 | void ev_io_stop (EV_P_ struct ev_io *w); |
468 | void ev_io_stop (EV_P_ ev_io *w); |
339 | |
469 | |
340 | void ev_timer_start (EV_P_ struct ev_timer *w); |
470 | void ev_timer_start (EV_P_ ev_timer *w); |
341 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
471 | void ev_timer_stop (EV_P_ ev_timer *w); |
342 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
472 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
343 | void ev_timer_again (EV_P_ struct ev_timer *w); |
473 | void ev_timer_again (EV_P_ ev_timer *w); |
344 | |
474 | |
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475 | #if EV_PERIODIC_ENABLE |
345 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
476 | void ev_periodic_start (EV_P_ ev_periodic *w); |
346 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
477 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
347 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
478 | void ev_periodic_again (EV_P_ ev_periodic *w); |
348 | |
479 | #endif |
349 | void ev_idle_start (EV_P_ struct ev_idle *w); |
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350 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
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351 | |
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352 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
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353 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
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354 | |
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355 | void ev_check_start (EV_P_ struct ev_check *w); |
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356 | void ev_check_stop (EV_P_ struct ev_check *w); |
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357 | |
480 | |
358 | /* only supported in the default loop */ |
481 | /* only supported in the default loop */ |
359 | void ev_signal_start (EV_P_ struct ev_signal *w); |
482 | void ev_signal_start (EV_P_ ev_signal *w); |
360 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
483 | void ev_signal_stop (EV_P_ ev_signal *w); |
361 | |
484 | |
362 | /* only supported in the default loop */ |
485 | /* only supported in the default loop */ |
363 | void ev_child_start (EV_P_ struct ev_child *w); |
486 | void ev_child_start (EV_P_ ev_child *w); |
364 | void ev_child_stop (EV_P_ struct ev_child *w); |
487 | void ev_child_stop (EV_P_ ev_child *w); |
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488 | |
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489 | # if EV_STAT_ENABLE |
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490 | void ev_stat_start (EV_P_ ev_stat *w); |
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491 | void ev_stat_stop (EV_P_ ev_stat *w); |
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492 | void ev_stat_stat (EV_P_ ev_stat *w); |
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493 | # endif |
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494 | |
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495 | void ev_idle_start (EV_P_ ev_idle *w); |
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496 | void ev_idle_stop (EV_P_ ev_idle *w); |
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497 | |
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498 | void ev_prepare_start (EV_P_ ev_prepare *w); |
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499 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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500 | |
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501 | void ev_check_start (EV_P_ ev_check *w); |
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502 | void ev_check_stop (EV_P_ ev_check *w); |
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503 | |
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504 | # if EV_FORK_ENABLE |
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505 | void ev_fork_start (EV_P_ ev_fork *w); |
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506 | void ev_fork_stop (EV_P_ ev_fork *w); |
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507 | # endif |
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508 | |
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509 | # if EV_EMBED_ENABLE |
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510 | /* only supported when loop to be embedded is in fact embeddable */ |
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511 | void ev_embed_start (EV_P_ ev_embed *w); |
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512 | void ev_embed_stop (EV_P_ ev_embed *w); |
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513 | void ev_embed_sweep (EV_P_ ev_embed *w); |
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514 | # endif |
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515 | |
365 | #endif |
516 | #endif |
366 | |
517 | |
367 | #ifdef __cplusplus |
518 | #ifdef __cplusplus |
368 | } |
519 | } |
369 | #endif |
520 | #endif |