… | |
… | |
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 | |
… | |
… | |
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 | #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_EMBED_ENABLE |
|
|
60 | # define EV_EMBED_ENABLE 1 |
|
|
61 | #endif |
|
|
62 | |
|
|
63 | /*****************************************************************************/ |
|
|
64 | |
|
|
65 | #if EV_STAT_ENABLE |
|
|
66 | # include <sys/stat.h> |
|
|
67 | #endif |
|
|
68 | |
|
|
69 | /* support multiple event loops? */ |
|
|
70 | #if EV_MULTIPLICITY |
|
|
71 | struct ev_loop; |
|
|
72 | # define EV_P struct ev_loop *loop |
|
|
73 | # define EV_P_ EV_P, |
|
|
74 | # define EV_A loop |
|
|
75 | # define EV_A_ EV_A, |
|
|
76 | # define EV_DEFAULT_A ev_default_loop (0) |
|
|
77 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
|
|
78 | #else |
|
|
79 | # define EV_P void |
|
|
80 | # define EV_P_ |
|
|
81 | # define EV_A |
|
|
82 | # define EV_A_ |
|
|
83 | # define EV_DEFAULT_A |
|
|
84 | # define EV_DEFAULT_A_ |
|
|
85 | |
|
|
86 | # undef EV_EMBED_ENABLE |
|
|
87 | #endif |
|
|
88 | |
47 | /* eventmask, revents, events... */ |
89 | /* eventmask, revents, events... */ |
48 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
90 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
49 | #define EV_NONE 0x00 |
91 | #define EV_NONE 0x00L /* no events */ |
50 | #define EV_READ 0x01 |
92 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
51 | #define EV_WRITE 0x02 |
93 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
52 | #define EV_TIMEOUT 0x000100 |
94 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
53 | #define EV_PERIODIC 0x000200 |
95 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
54 | #define EV_SIGNAL 0x000400 |
96 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
55 | #define EV_IDLE 0x000800 |
97 | #define EV_IDLE 0x00000800L /* event loop is idling */ |
56 | #define EV_CHECK 0x001000 |
98 | #define EV_PREPARE 0x00001000L /* event loop about to poll */ |
57 | #define EV_PREPARE 0x002000 |
99 | #define EV_CHECK 0x00002000L /* event loop finished poll */ |
58 | #define EV_CHILD 0x004000 |
100 | #define EV_CHILD 0x00004000L /* child/pid had status change */ |
|
|
101 | #define EV_EMBED 0x00008000L /* embedded event loop needs sweep */ |
|
|
102 | #define EV_STAT 0x00010000L /* stat data changed */ |
59 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
103 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
60 | |
104 | |
61 | /* can be used to add custom fields to all watchers */ |
105 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
62 | #ifndef EV_COMMON |
106 | #ifndef EV_COMMON |
63 | # define EV_COMMON void *data |
107 | # define EV_COMMON void *data; |
64 | #endif |
108 | #endif |
65 | #ifndef EV_PROTOTYPES |
109 | #ifndef EV_PROTOTYPES |
66 | # define EV_PROTOTYPES 1 |
110 | # define EV_PROTOTYPES 1 |
67 | #endif |
111 | #endif |
68 | |
112 | |
69 | #define EV_VERSION_MAJOR 1 |
113 | #define EV_VERSION_MAJOR 1 |
70 | #define EV_VERSION_MINOR 1 |
114 | #define EV_VERSION_MINOR 1 |
|
|
115 | |
|
|
116 | #ifndef EV_CB_DECLARE |
|
|
117 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
|
|
118 | #endif |
|
|
119 | #ifndef EV_CB_INVOKE |
|
|
120 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
|
|
121 | #endif |
71 | |
122 | |
72 | /* |
123 | /* |
73 | * struct member types: |
124 | * struct member types: |
74 | * private: you can look at them, but not change them, and they might not mean anything to you. |
125 | * private: you can look at them, but not change them, and they might not mean anything to you. |
75 | * ro: can be read anytime, but only changed when the watcher isn't active |
126 | * ro: can be read anytime, but only changed when the watcher isn't active |
… | |
… | |
78 | |
129 | |
79 | /* shared by all watchers */ |
130 | /* shared by all watchers */ |
80 | #define EV_WATCHER(type) \ |
131 | #define EV_WATCHER(type) \ |
81 | int active; /* private */ \ |
132 | int active; /* private */ \ |
82 | int pending; /* private */ \ |
133 | int pending; /* private */ \ |
83 | int priority; /* ro */ \ |
134 | int priority; /* private */ \ |
84 | EV_COMMON; /* rw */ \ |
135 | EV_COMMON /* rw */ \ |
85 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
136 | EV_CB_DECLARE (type) /* private */ |
86 | |
137 | |
87 | #define EV_WATCHER_LIST(type) \ |
138 | #define EV_WATCHER_LIST(type) \ |
88 | EV_WATCHER (type); \ |
139 | EV_WATCHER (type) \ |
89 | struct type *next /* private */ |
140 | struct ev_watcher_list *next; /* private */ |
90 | |
141 | |
91 | #define EV_WATCHER_TIME(type) \ |
142 | #define EV_WATCHER_TIME(type) \ |
92 | EV_WATCHER (type); \ |
143 | EV_WATCHER (type) \ |
93 | ev_tstamp at /* private */ |
144 | ev_tstamp at; /* private */ |
94 | |
145 | |
95 | /* base class, nothing to see here unless you subclass */ |
146 | /* base class, nothing to see here unless you subclass */ |
96 | struct ev_watcher { |
147 | typedef struct ev_watcher |
|
|
148 | { |
97 | EV_WATCHER (ev_watcher); |
149 | EV_WATCHER (ev_watcher) |
98 | }; |
150 | } ev_watcher; |
99 | |
151 | |
100 | /* base class, nothing to see here unless you subclass */ |
152 | /* base class, nothing to see here unless you subclass */ |
101 | struct ev_watcher_list { |
153 | typedef struct ev_watcher_list |
|
|
154 | { |
102 | EV_WATCHER_LIST (ev_watcher_list); |
155 | EV_WATCHER_LIST (ev_watcher_list) |
103 | }; |
156 | } ev_watcher_list; |
104 | |
157 | |
105 | /* base class, nothing to see here unless you subclass */ |
158 | /* base class, nothing to see here unless you subclass */ |
106 | struct ev_watcher_time { |
159 | typedef struct ev_watcher_time |
|
|
160 | { |
107 | EV_WATCHER_TIME (ev_watcher_time); |
161 | EV_WATCHER_TIME (ev_watcher_time) |
108 | }; |
162 | } ev_watcher_time; |
|
|
163 | |
|
|
164 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
165 | /* revent EV_READ, EV_WRITE */ |
|
|
166 | typedef struct ev_io |
|
|
167 | { |
|
|
168 | EV_WATCHER_LIST (ev_io) |
|
|
169 | |
|
|
170 | int fd; /* ro */ |
|
|
171 | int events; /* ro */ |
|
|
172 | } ev_io; |
109 | |
173 | |
110 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
174 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
111 | /* revent EV_TIMEOUT */ |
175 | /* revent EV_TIMEOUT */ |
112 | struct ev_timer |
176 | typedef struct ev_timer |
113 | { |
177 | { |
114 | EV_WATCHER_TIME (ev_timer); |
178 | EV_WATCHER_TIME (ev_timer) |
115 | |
179 | |
116 | ev_tstamp repeat; /* rw */ |
180 | ev_tstamp repeat; /* rw */ |
117 | }; |
181 | } ev_timer; |
118 | |
182 | |
119 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
183 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
120 | /* revent EV_PERIODIC */ |
184 | /* revent EV_PERIODIC */ |
121 | struct ev_periodic |
185 | typedef struct ev_periodic |
122 | { |
186 | { |
123 | EV_WATCHER_TIME (ev_periodic); |
187 | EV_WATCHER_TIME (ev_periodic) |
124 | |
188 | |
125 | ev_tstamp interval; /* rw */ |
189 | ev_tstamp interval; /* rw */ |
126 | }; |
190 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
127 | |
191 | } ev_periodic; |
128 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
|
|
129 | /* revent EV_READ, EV_WRITE */ |
|
|
130 | struct ev_io |
|
|
131 | { |
|
|
132 | EV_WATCHER_LIST (ev_io); |
|
|
133 | |
|
|
134 | int fd; /* ro */ |
|
|
135 | int events; /* ro */ |
|
|
136 | }; |
|
|
137 | |
192 | |
138 | /* invoked when the given signal has been received */ |
193 | /* invoked when the given signal has been received */ |
139 | /* revent EV_SIGNAL */ |
194 | /* revent EV_SIGNAL */ |
140 | struct ev_signal |
195 | typedef struct ev_signal |
141 | { |
196 | { |
142 | EV_WATCHER_LIST (ev_signal); |
197 | EV_WATCHER_LIST (ev_signal) |
143 | |
198 | |
144 | int signum; /* ro */ |
199 | int signum; /* ro */ |
145 | }; |
200 | } ev_signal; |
|
|
201 | |
|
|
202 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
|
|
203 | /* revent EV_CHILD */ |
|
|
204 | /* does not support priorities */ |
|
|
205 | typedef struct ev_child |
|
|
206 | { |
|
|
207 | EV_WATCHER_LIST (ev_child) |
|
|
208 | |
|
|
209 | int pid; /* ro */ |
|
|
210 | int rpid; /* rw, holds the received pid */ |
|
|
211 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
212 | } ev_child; |
|
|
213 | |
|
|
214 | #if EV_STAT_ENABLE |
|
|
215 | /* st_nlink = 0 means missing file or other error */ |
|
|
216 | #ifdef _WIN32 |
|
|
217 | typedef struct _stati64 ev_statdata; |
|
|
218 | #else |
|
|
219 | typedef struct stat ev_statdata; |
|
|
220 | #endif |
|
|
221 | |
|
|
222 | /* invoked each time the stat data changes for a given path */ |
|
|
223 | /* revent EV_STAT */ |
|
|
224 | typedef struct ev_stat |
|
|
225 | { |
|
|
226 | EV_WATCHER (ev_stat) |
|
|
227 | |
|
|
228 | ev_timer timer; /* private */ |
|
|
229 | ev_tstamp interval; /* ro */ |
|
|
230 | const char *path; /* ro */ |
|
|
231 | ev_statdata prev; /* ro */ |
|
|
232 | ev_statdata attr; /* ro */ |
|
|
233 | } ev_stat; |
|
|
234 | #endif |
146 | |
235 | |
147 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
236 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
148 | /* revent EV_IDLE */ |
237 | /* revent EV_IDLE */ |
149 | struct ev_idle |
238 | typedef struct ev_idle |
150 | { |
239 | { |
151 | EV_WATCHER (ev_idle); |
240 | EV_WATCHER (ev_idle) |
152 | }; |
241 | } ev_idle; |
153 | |
242 | |
154 | /* invoked for each run of the mainloop, just before the blocking call */ |
243 | /* invoked for each run of the mainloop, just before the blocking call */ |
155 | /* you can still change events in any way you like */ |
244 | /* you can still change events in any way you like */ |
156 | /* revent EV_PREPARE */ |
245 | /* revent EV_PREPARE */ |
157 | struct ev_prepare |
246 | typedef struct ev_prepare |
158 | { |
247 | { |
159 | EV_WATCHER (ev_prepare); |
248 | EV_WATCHER (ev_prepare) |
160 | }; |
249 | } ev_prepare; |
161 | |
250 | |
162 | /* invoked for each run of the mainloop, just after the blocking call */ |
251 | /* invoked for each run of the mainloop, just after the blocking call */ |
163 | /* revent EV_CHECK */ |
252 | /* revent EV_CHECK */ |
164 | struct ev_check |
253 | typedef struct ev_check |
165 | { |
254 | { |
166 | EV_WATCHER (ev_check); |
255 | EV_WATCHER (ev_check) |
|
|
256 | } ev_check; |
|
|
257 | |
|
|
258 | #if EV_EMBED_ENABLE |
|
|
259 | /* used to embed an event loop inside another */ |
|
|
260 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
|
|
261 | typedef struct ev_embed |
|
|
262 | { |
|
|
263 | EV_WATCHER (ev_embed) |
|
|
264 | |
|
|
265 | ev_io io; /* private */ |
|
|
266 | struct ev_loop *loop; /* ro */ |
|
|
267 | } ev_embed; |
|
|
268 | #endif |
|
|
269 | |
|
|
270 | /* the presence of this union forces similar struct layout */ |
|
|
271 | union ev_any_watcher |
|
|
272 | { |
|
|
273 | struct ev_watcher w; |
|
|
274 | struct ev_watcher_list wl; |
|
|
275 | |
|
|
276 | struct ev_io io; |
|
|
277 | struct ev_timer timer; |
|
|
278 | struct ev_periodic periodic; |
|
|
279 | struct ev_child child; |
|
|
280 | #if EV_STAT_ENABLE |
|
|
281 | struct ev_stat stat; |
|
|
282 | #endif |
|
|
283 | struct ev_idle idle; |
|
|
284 | struct ev_prepare prepare; |
|
|
285 | struct ev_check check; |
|
|
286 | struct ev_signal signal; |
|
|
287 | #if EV_EMBED_ENABLE |
|
|
288 | struct ev_embed embed; |
|
|
289 | #endif |
167 | }; |
290 | }; |
168 | |
291 | |
169 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
292 | /* bits for ev_default_loop and ev_loop_new */ |
170 | /* revent EV_CHILD */ |
293 | /* the default */ |
171 | struct ev_child |
294 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
172 | { |
295 | /* flag bits */ |
173 | EV_WATCHER_LIST (ev_child); |
296 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
|
|
297 | /* method bits to be ored together */ |
|
|
298 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
|
|
299 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
|
|
300 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
|
|
301 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
|
|
302 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
|
|
303 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
174 | |
304 | |
175 | int pid; /* ro */ |
|
|
176 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
177 | }; |
|
|
178 | |
|
|
179 | #define EVMETHOD_AUTO 0 /* consults environment */ |
|
|
180 | #define EVMETHOD_SELECT 1 |
|
|
181 | #define EVMETHOD_POLL 2 |
|
|
182 | #define EVMETHOD_EPOLL 4 |
|
|
183 | #define EVMETHOD_KQUEUE 8 |
|
|
184 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
|
|
185 | #define EVMETHOD_PORT 32 /* NYI */ |
|
|
186 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
|
|
187 | #if EV_PROTOTYPES |
305 | #if EV_PROTOTYPES |
188 | extern int ev_method; |
|
|
189 | int ev_init (int methods); /* returns ev_method */ |
|
|
190 | int ev_version_major (void); |
306 | int ev_version_major (void); |
191 | int ev_version_minor (void); |
307 | int ev_version_minor (void); |
192 | |
308 | |
193 | /* these three calls are suitable for plugging into pthread_atfork */ |
309 | unsigned int ev_supported_backends (void); |
194 | void ev_fork_prepare (void); |
310 | unsigned int ev_recommended_backends (void); |
195 | void ev_fork_parent (void); |
311 | unsigned int ev_embeddable_backends (void); |
196 | void ev_fork_child (void); |
|
|
197 | |
312 | |
198 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
199 | ev_tstamp ev_time (void); |
313 | ev_tstamp ev_time (void); |
|
|
314 | |
|
|
315 | /* Sets the allocation function to use, works like realloc. |
|
|
316 | * It is used to allocate and free memory. |
|
|
317 | * If it returns zero when memory needs to be allocated, the library might abort |
|
|
318 | * or take some potentially destructive action. |
|
|
319 | * The default is your system realloc function. |
|
|
320 | */ |
|
|
321 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
|
|
322 | |
|
|
323 | /* set the callback function to call on a |
|
|
324 | * retryable syscall error |
|
|
325 | * (such as failed select, poll, epoll_wait) |
|
|
326 | */ |
|
|
327 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
|
|
328 | |
|
|
329 | # if EV_MULTIPLICITY |
|
|
330 | /* the default loop is the only one that handles signals and child watchers */ |
|
|
331 | /* you can call this as often as you like */ |
|
|
332 | static struct ev_loop * |
|
|
333 | ev_default_loop (unsigned int flags) |
|
|
334 | { |
|
|
335 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
336 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
|
|
337 | |
|
|
338 | if (!ev_default_loop_ptr) |
|
|
339 | ev_default_loop_init (flags); |
|
|
340 | |
|
|
341 | return ev_default_loop_ptr; |
|
|
342 | } |
|
|
343 | |
|
|
344 | /* create and destroy alternative loops that don't handle signals */ |
|
|
345 | struct ev_loop *ev_loop_new (unsigned int flags); |
|
|
346 | void ev_loop_destroy (EV_P); |
|
|
347 | void ev_loop_fork (EV_P); |
|
|
348 | |
|
|
349 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
350 | |
|
|
351 | # else |
|
|
352 | |
|
|
353 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
|
|
354 | |
|
|
355 | static ev_tstamp |
|
|
356 | ev_now (void) |
|
|
357 | { |
|
|
358 | extern ev_tstamp ev_rt_now; |
|
|
359 | |
|
|
360 | return ev_rt_now; |
|
|
361 | } |
|
|
362 | # endif |
|
|
363 | |
|
|
364 | void ev_default_destroy (void); /* destroy the default loop */ |
|
|
365 | /* this needs to be called after fork, to duplicate the default loop */ |
|
|
366 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
|
|
367 | /* you can call it in either the parent or the child */ |
|
|
368 | /* you can actually call it at any time, anywhere :) */ |
|
|
369 | void ev_default_fork (void); |
|
|
370 | |
|
|
371 | unsigned int ev_backend (EV_P); |
200 | #endif |
372 | #endif |
201 | |
373 | |
202 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
374 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
203 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
375 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
|
|
376 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
|
|
377 | #define EVUNLOOP_ONE 1 /* unloop once */ |
|
|
378 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
|
|
379 | |
204 | #if EV_PROTOTYPES |
380 | #if EV_PROTOTYPES |
205 | void ev_loop (int flags); |
381 | void ev_loop (EV_P_ int flags); |
206 | extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
382 | 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 */ |
|
|
383 | |
|
|
384 | /* |
|
|
385 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
|
|
386 | * keeps one reference. if you have a long-runing watcher you never unregister that |
|
|
387 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
|
|
388 | */ |
|
|
389 | void ev_ref (EV_P); |
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390 | void ev_unref (EV_P); |
207 | |
391 | |
208 | /* convinience function, wait for a single event, without registering an event watcher */ |
392 | /* convinience function, wait for a single event, without registering an event watcher */ |
209 | /* if timeout is < 0, do wait indefinitely */ |
393 | /* if timeout is < 0, do wait indefinitely */ |
210 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
394 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
211 | #endif |
395 | #endif |
212 | |
396 | |
213 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
397 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
214 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
398 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
215 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
399 | #define ev_init(ev,cb_) do { \ |
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400 | ((ev_watcher *)(void *)(ev))->active = \ |
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401 | ((ev_watcher *)(void *)(ev))->pending = \ |
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402 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
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403 | ev_set_cb ((ev), cb_); \ |
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404 | } while (0) |
216 | |
405 | |
217 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
406 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
218 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
407 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
219 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
408 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
220 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
409 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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410 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
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411 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) |
221 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
412 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
222 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
413 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
223 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
414 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
224 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
415 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
225 | |
416 | |
226 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
417 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
227 | #define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
418 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
228 | #define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) |
419 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
229 | #define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
420 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
230 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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231 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
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232 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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233 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
421 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
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422 | #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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423 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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424 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
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425 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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426 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
234 | |
427 | |
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428 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
235 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
429 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
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430 | |
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431 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
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432 | #define ev_cb(ev) (ev)->cb /* rw */ |
236 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
433 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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434 | |
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435 | #ifndef ev_set_cb |
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436 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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437 | #endif |
237 | |
438 | |
238 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
439 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
239 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
440 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
240 | #if EV_PROTOTYPES |
441 | #if EV_PROTOTYPES |
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442 | |
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443 | /* feeds an event into a watcher as if the event actually occured */ |
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444 | /* accepts any ev_watcher type */ |
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445 | void ev_feed_event (EV_P_ void *w, int revents); |
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446 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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447 | void ev_feed_signal_event (EV_P_ int signum); |
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448 | |
241 | void ev_io_start (struct ev_io *w); |
449 | void ev_io_start (EV_P_ ev_io *w); |
242 | void ev_io_stop (struct ev_io *w); |
450 | void ev_io_stop (EV_P_ ev_io *w); |
243 | |
451 | |
244 | void ev_timer_start (struct ev_timer *w); |
452 | void ev_timer_start (EV_P_ ev_timer *w); |
245 | void ev_timer_stop (struct ev_timer *w); |
453 | void ev_timer_stop (EV_P_ ev_timer *w); |
246 | void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
454 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
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455 | void ev_timer_again (EV_P_ ev_timer *w); |
247 | |
456 | |
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457 | #if EV_PERIODIC_ENABLE |
248 | void ev_periodic_start (struct ev_periodic *w); |
458 | void ev_periodic_start (EV_P_ ev_periodic *w); |
249 | void ev_periodic_stop (struct ev_periodic *w); |
459 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
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460 | void ev_periodic_again (EV_P_ ev_periodic *w); |
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461 | #endif |
250 | |
462 | |
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463 | /* only supported in the default loop */ |
251 | void ev_signal_start (struct ev_signal *w); |
464 | void ev_signal_start (EV_P_ ev_signal *w); |
252 | void ev_signal_stop (struct ev_signal *w); |
465 | void ev_signal_stop (EV_P_ ev_signal *w); |
253 | |
466 | |
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467 | /* only supported in the default loop */ |
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468 | void ev_child_start (EV_P_ ev_child *w); |
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469 | void ev_child_stop (EV_P_ ev_child *w); |
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470 | |
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471 | # if EV_STAT_ENABLE |
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472 | void ev_stat_start (EV_P_ ev_stat *w); |
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473 | void ev_stat_stop (EV_P_ ev_stat *w); |
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474 | void ev_stat_stat (EV_P_ ev_stat *w); |
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475 | # endif |
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476 | |
254 | void ev_idle_start (struct ev_idle *w); |
477 | void ev_idle_start (EV_P_ ev_idle *w); |
255 | void ev_idle_stop (struct ev_idle *w); |
478 | void ev_idle_stop (EV_P_ ev_idle *w); |
256 | |
479 | |
257 | void ev_prepare_start (struct ev_prepare *w); |
480 | void ev_prepare_start (EV_P_ ev_prepare *w); |
258 | void ev_prepare_stop (struct ev_prepare *w); |
481 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
259 | |
482 | |
260 | void ev_check_start (struct ev_check *w); |
483 | void ev_check_start (EV_P_ ev_check *w); |
261 | void ev_check_stop (struct ev_check *w); |
484 | void ev_check_stop (EV_P_ ev_check *w); |
262 | |
485 | |
263 | void ev_child_start (struct ev_child *w); |
486 | # if EV_EMBED_ENABLE |
264 | void ev_child_stop (struct ev_child *w); |
487 | /* only supported when loop to be embedded is in fact embeddable */ |
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488 | void ev_embed_start (EV_P_ ev_embed *w); |
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489 | void ev_embed_stop (EV_P_ ev_embed *w); |
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490 | void ev_embed_sweep (EV_P_ ev_embed *w); |
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491 | # endif |
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492 | |
265 | #endif |
493 | #endif |
266 | |
494 | |
267 | #ifdef __cplusplus |
495 | #ifdef __cplusplus |
268 | } |
496 | } |
269 | #endif |
497 | #endif |