… | |
… | |
42 | #endif |
42 | #endif |
43 | #ifndef EV_MAXPRI |
43 | #ifndef EV_MAXPRI |
44 | # define EV_MAXPRI +2 |
44 | # define EV_MAXPRI +2 |
45 | #endif |
45 | #endif |
46 | |
46 | |
|
|
47 | #ifndef EV_MULTIPLICITY |
|
|
48 | # define EV_MULTIPLICITY 1 |
|
|
49 | #endif |
|
|
50 | |
|
|
51 | /* support multiple event loops? */ |
|
|
52 | #if EV_MULTIPLICITY |
|
|
53 | struct ev_loop; |
|
|
54 | # define EV_P struct ev_loop *loop |
|
|
55 | # define EV_P_ EV_P, |
|
|
56 | # define EV_A loop |
|
|
57 | # define EV_A_ EV_A, |
|
|
58 | #else |
|
|
59 | # define EV_P void |
|
|
60 | # define EV_P_ |
|
|
61 | # define EV_A |
|
|
62 | # define EV_A_ |
|
|
63 | #endif |
|
|
64 | |
47 | /* eventmask, revents, events... */ |
65 | /* eventmask, revents, events... */ |
48 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
66 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
49 | #define EV_NONE 0x00 |
67 | #define EV_NONE 0x00 |
50 | #define EV_READ 0x01 |
68 | #define EV_READ 0x01 |
51 | #define EV_WRITE 0x02 |
69 | #define EV_WRITE 0x02 |
… | |
… | |
78 | |
96 | |
79 | /* shared by all watchers */ |
97 | /* shared by all watchers */ |
80 | #define EV_WATCHER(type) \ |
98 | #define EV_WATCHER(type) \ |
81 | int active; /* private */ \ |
99 | int active; /* private */ \ |
82 | int pending; /* private */ \ |
100 | int pending; /* private */ \ |
83 | int priority; /* ro */ \ |
101 | int priority; /* private */ \ |
84 | EV_COMMON; /* rw */ \ |
102 | EV_COMMON; /* rw */ \ |
85 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
103 | void (*cb)(EV_P_ struct type *, int revents); /* private */ /* gets invoked with an eventmask */ |
86 | |
104 | |
87 | #define EV_WATCHER_LIST(type) \ |
105 | #define EV_WATCHER_LIST(type) \ |
88 | EV_WATCHER (type); \ |
106 | EV_WATCHER (type); \ |
89 | struct type *next /* private */ |
107 | struct ev_watcher_list *next /* private */ |
90 | |
108 | |
91 | #define EV_WATCHER_TIME(type) \ |
109 | #define EV_WATCHER_TIME(type) \ |
92 | EV_WATCHER (type); \ |
110 | EV_WATCHER (type); \ |
93 | ev_tstamp at /* private */ |
111 | ev_tstamp at /* private */ |
94 | |
112 | |
… | |
… | |
138 | /* invoked when the given signal has been received */ |
156 | /* invoked when the given signal has been received */ |
139 | /* revent EV_SIGNAL */ |
157 | /* revent EV_SIGNAL */ |
140 | struct ev_signal |
158 | struct ev_signal |
141 | { |
159 | { |
142 | EV_WATCHER_LIST (ev_signal); |
160 | EV_WATCHER_LIST (ev_signal); |
|
|
161 | #if EV_MULTIPLICITY |
|
|
162 | struct ev_loop *loop; |
|
|
163 | #endif |
143 | |
164 | |
144 | int signum; /* ro */ |
165 | int signum; /* ro */ |
145 | }; |
166 | }; |
146 | |
167 | |
147 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
168 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
… | |
… | |
166 | EV_WATCHER (ev_check); |
187 | EV_WATCHER (ev_check); |
167 | }; |
188 | }; |
168 | |
189 | |
169 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
190 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
170 | /* revent EV_CHILD */ |
191 | /* revent EV_CHILD */ |
|
|
192 | /* does not support priorities */ |
171 | struct ev_child |
193 | struct ev_child |
172 | { |
194 | { |
173 | EV_WATCHER_LIST (ev_child); |
195 | EV_WATCHER_LIST (ev_child); |
174 | |
196 | |
175 | int pid; /* ro */ |
197 | int pid; /* ro */ |
|
|
198 | int rpid; /* rw, holds the received pid */ |
176 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
199 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
200 | }; |
|
|
201 | |
|
|
202 | union ev_any_watcher |
|
|
203 | { |
|
|
204 | struct ev_watcher w; |
|
|
205 | struct ev_watcher_list wl; |
|
|
206 | struct ev_io io; |
|
|
207 | struct ev_timer timer; |
|
|
208 | struct ev_periodic periodic; |
|
|
209 | struct ev_signal signal; |
|
|
210 | struct ev_idle idle; |
|
|
211 | struct ev_child child; |
|
|
212 | struct ev_prepare prepare; |
|
|
213 | struct ev_check check; |
177 | }; |
214 | }; |
178 | |
215 | |
179 | #define EVMETHOD_AUTO 0 /* consults environment */ |
216 | #define EVMETHOD_AUTO 0 /* consults environment */ |
180 | #define EVMETHOD_SELECT 1 |
217 | #define EVMETHOD_SELECT 1 |
181 | #define EVMETHOD_POLL 2 |
218 | #define EVMETHOD_POLL 2 |
182 | #define EVMETHOD_EPOLL 4 |
219 | #define EVMETHOD_EPOLL 4 |
183 | #define EVMETHOD_KQUEUE 8 |
220 | #define EVMETHOD_KQUEUE 8 |
184 | #define EVMETHOD_DEVPOLL 16 |
221 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
|
|
222 | #define EVMETHOD_PORT 32 /* NYI */ |
|
|
223 | #define EVMETHOD_WIN32 64 /* NYI */ |
185 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
224 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
|
|
225 | |
186 | #if EV_PROTOTYPES |
226 | #if EV_PROTOTYPES |
187 | extern int ev_method; |
|
|
188 | int ev_init (int methods); /* returns ev_method */ |
|
|
189 | int ev_version_major (void); |
227 | int ev_version_major (void); |
190 | int ev_version_minor (void); |
228 | int ev_version_minor (void); |
191 | |
229 | |
192 | /* these three calls are suitable for plugging into pthread_atfork */ |
|
|
193 | void ev_fork_prepare (void); |
|
|
194 | void ev_fork_parent (void); |
|
|
195 | void ev_fork_child (void); |
|
|
196 | |
|
|
197 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
198 | ev_tstamp ev_time (void); |
230 | ev_tstamp ev_time (void); |
|
|
231 | |
|
|
232 | /* Sets the allocation function to use, works like realloc. |
|
|
233 | * It is used to allocate and free memory. |
|
|
234 | * If it returns zero when memory needs to be allocated, the library might abort |
|
|
235 | * or take some potentially destructive action. |
|
|
236 | * The default is your system realloc function. |
|
|
237 | */ |
|
|
238 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
|
|
239 | |
|
|
240 | /* set the callback function to call on a |
|
|
241 | * retryable syscall error |
|
|
242 | * (such as failed select, poll, epoll_wait) |
|
|
243 | */ |
|
|
244 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
|
|
245 | |
|
|
246 | # if EV_MULTIPLICITY |
|
|
247 | /* the default loop is the only one that handles signals and child watchers */ |
|
|
248 | /* you can call this as often as you like */ |
|
|
249 | struct ev_loop *ev_default_loop (int methods); /* returns default loop */ |
|
|
250 | |
|
|
251 | /* create and destroy alternative loops that don't handle signals */ |
|
|
252 | struct ev_loop *ev_loop_new (int methods); |
|
|
253 | void ev_loop_destroy (EV_P); |
|
|
254 | void ev_loop_fork (EV_P); |
|
|
255 | # else |
|
|
256 | int ev_default_loop (int methods); /* returns true when successful */ |
|
|
257 | # endif |
|
|
258 | |
|
|
259 | void ev_default_destroy (void); /* destroy the default loop */ |
|
|
260 | /* this needs to be called after fork, to duplicate the default loop */ |
|
|
261 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
|
|
262 | /* you can call it in either the parent or the child */ |
|
|
263 | /* you can actually call it at any time, anywhere :) */ |
|
|
264 | void ev_default_fork (void); |
|
|
265 | |
|
|
266 | int ev_method (EV_P); |
199 | #endif |
267 | #endif |
200 | |
268 | |
201 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
269 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
202 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
270 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
|
|
271 | #define EVUNLOOP_ONCE 1 /* unloop once */ |
|
|
272 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
|
|
273 | |
203 | #if EV_PROTOTYPES |
274 | #if EV_PROTOTYPES |
204 | void ev_loop (int flags); |
275 | void ev_loop (EV_P_ int flags); |
205 | extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
276 | 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 */ |
|
|
277 | |
|
|
278 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
279 | |
|
|
280 | /* |
|
|
281 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
|
|
282 | * keeps one reference. if you have a long-runing watcher you never unregister that |
|
|
283 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
|
|
284 | */ |
|
|
285 | void ev_ref (EV_P); |
|
|
286 | void ev_unref (EV_P); |
206 | |
287 | |
207 | /* convinience function, wait for a single event, without registering an event watcher */ |
288 | /* convinience function, wait for a single event, without registering an event watcher */ |
208 | /* if timeout is < 0, do wait indefinitely */ |
289 | /* if timeout is < 0, do wait indefinitely */ |
209 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
290 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
210 | #endif |
291 | #endif |
211 | |
292 | |
212 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
293 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
213 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
294 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
214 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
295 | #define ev_watcher_init(ev,cb_) do { \ |
|
|
296 | ((struct ev_watcher *)(void *)(ev))->active = \ |
|
|
297 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
|
|
298 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
|
|
299 | (ev)->cb = (cb_); \ |
|
|
300 | } while (0) |
215 | |
301 | |
216 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
302 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
217 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
303 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
218 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
304 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
219 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
305 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
… | |
… | |
229 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
315 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
230 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
316 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
231 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
317 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
232 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
318 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
233 | |
319 | |
|
|
320 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
234 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
321 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
|
|
322 | |
|
|
323 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
|
|
324 | #define ev_cb(ev) (ev)->cb /* rw */ |
235 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
325 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
|
|
326 | #define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
236 | |
327 | |
237 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
328 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
238 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
329 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
239 | #if EV_PROTOTYPES |
330 | #if EV_PROTOTYPES |
240 | void ev_io_start (struct ev_io *w); |
331 | void ev_io_start (EV_P_ struct ev_io *w); |
241 | void ev_io_stop (struct ev_io *w); |
332 | void ev_io_stop (EV_P_ struct ev_io *w); |
242 | |
333 | |
243 | void ev_timer_start (struct ev_timer *w); |
334 | void ev_timer_start (EV_P_ struct ev_timer *w); |
244 | void ev_timer_stop (struct ev_timer *w); |
335 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
245 | void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
336 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
|
|
337 | void ev_timer_again (EV_P_ struct ev_timer *w); |
246 | |
338 | |
247 | void ev_periodic_start (struct ev_periodic *w); |
339 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
248 | void ev_periodic_stop (struct ev_periodic *w); |
340 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
249 | |
341 | |
250 | void ev_signal_start (struct ev_signal *w); |
|
|
251 | void ev_signal_stop (struct ev_signal *w); |
|
|
252 | |
|
|
253 | void ev_idle_start (struct ev_idle *w); |
342 | void ev_idle_start (EV_P_ struct ev_idle *w); |
254 | void ev_idle_stop (struct ev_idle *w); |
343 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
255 | |
344 | |
256 | void ev_prepare_start (struct ev_prepare *w); |
345 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
257 | void ev_prepare_stop (struct ev_prepare *w); |
346 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
258 | |
347 | |
259 | void ev_check_start (struct ev_check *w); |
348 | void ev_check_start (EV_P_ struct ev_check *w); |
260 | void ev_check_stop (struct ev_check *w); |
349 | void ev_check_stop (EV_P_ struct ev_check *w); |
261 | |
350 | |
|
|
351 | /* only supported in the default loop */ |
|
|
352 | void ev_signal_start (EV_P_ struct ev_signal *w); |
|
|
353 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
|
|
354 | |
|
|
355 | /* only supported in the default loop */ |
262 | void ev_child_start (struct ev_child *w); |
356 | void ev_child_start (EV_P_ struct ev_child *w); |
263 | void ev_child_stop (struct ev_child *w); |
357 | void ev_child_stop (EV_P_ struct ev_child *w); |
264 | #endif |
358 | #endif |
265 | |
359 | |
266 | #ifdef __cplusplus |
360 | #ifdef __cplusplus |
267 | } |
361 | } |
268 | #endif |
362 | #endif |