1 |
/* |
2 |
* libev native API header |
3 |
* |
4 |
* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 |
* All rights reserved. |
6 |
* |
7 |
* Redistribution and use in source and binary forms, with or without modifica- |
8 |
* tion, are permitted provided that the following conditions are 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. |
27 |
* |
28 |
* Alternatively, the contents of this file may be used under the terms of |
29 |
* the GNU General Public License ("GPL") version 2 or any later version, |
30 |
* in which case the provisions of the GPL are applicable instead of |
31 |
* the above. If you wish to allow the use of your version of this file |
32 |
* only under the terms of the GPL and not to allow others to use your |
33 |
* version of this file under the BSD license, indicate your decision |
34 |
* by deleting the provisions above and replace them with the notice |
35 |
* and other provisions required by the GPL. If you do not delete the |
36 |
* provisions above, a recipient may use your version of this file under |
37 |
* either the BSD or the GPL. |
38 |
*/ |
39 |
|
40 |
#ifndef EV_H__ |
41 |
#define EV_H__ |
42 |
|
43 |
#ifdef __cplusplus |
44 |
extern "C" { |
45 |
#endif |
46 |
|
47 |
typedef double ev_tstamp; |
48 |
|
49 |
/* these priorities are inclusive, higher priorities will be called earlier */ |
50 |
#ifndef EV_MINPRI |
51 |
# define EV_MINPRI -2 |
52 |
#endif |
53 |
#ifndef EV_MAXPRI |
54 |
# define EV_MAXPRI +2 |
55 |
#endif |
56 |
|
57 |
#ifndef EV_MULTIPLICITY |
58 |
# define EV_MULTIPLICITY 1 |
59 |
#endif |
60 |
|
61 |
#ifndef EV_PERIODIC_ENABLE |
62 |
# define EV_PERIODIC_ENABLE 1 |
63 |
#endif |
64 |
|
65 |
#ifndef EV_STAT_ENABLE |
66 |
# define EV_STAT_ENABLE 1 |
67 |
#endif |
68 |
|
69 |
#ifndef EV_IDLE_ENABLE |
70 |
# define EV_IDLE_ENABLE 1 |
71 |
#endif |
72 |
|
73 |
#ifndef EV_FORK_ENABLE |
74 |
# define EV_FORK_ENABLE 1 |
75 |
#endif |
76 |
|
77 |
#ifndef EV_EMBED_ENABLE |
78 |
# define EV_EMBED_ENABLE 1 |
79 |
#endif |
80 |
|
81 |
#ifndef EV_ASYNC_ENABLE |
82 |
# define EV_ASYNC_ENABLE 1 |
83 |
#endif |
84 |
|
85 |
#ifndef EV_ATOMIC_T |
86 |
# include <signal.h> |
87 |
# define EV_ATOMIC_T sig_atomic_t volatile |
88 |
#endif |
89 |
|
90 |
/*****************************************************************************/ |
91 |
|
92 |
#if EV_STAT_ENABLE |
93 |
# include <sys/stat.h> |
94 |
#endif |
95 |
|
96 |
/* support multiple event loops? */ |
97 |
#if EV_MULTIPLICITY |
98 |
struct ev_loop; |
99 |
# define EV_P struct ev_loop *loop |
100 |
# define EV_P_ EV_P, |
101 |
# define EV_A loop |
102 |
# define EV_A_ EV_A, |
103 |
# define EV_DEFAULT ev_default_loop (0) |
104 |
# define EV_DEFAULT_ EV_DEFAULT, |
105 |
#else |
106 |
# define EV_P void |
107 |
# define EV_P_ |
108 |
# define EV_A |
109 |
# define EV_A_ |
110 |
# define EV_DEFAULT |
111 |
# define EV_DEFAULT_ |
112 |
|
113 |
# undef EV_EMBED_ENABLE |
114 |
#endif |
115 |
|
116 |
/* eventmask, revents, events... */ |
117 |
#define EV_UNDEF -1L /* guaranteed to be invalid */ |
118 |
#define EV_NONE 0x00L /* no events */ |
119 |
#define EV_READ 0x01L /* ev_io detected read will not block */ |
120 |
#define EV_WRITE 0x02L /* ev_io detected write will not block */ |
121 |
#define EV_IOFDSET 0x80L /* internal use only */ |
122 |
#define EV_TIMEOUT 0x00000100L /* timer timed out */ |
123 |
#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
124 |
#define EV_SIGNAL 0x00000400L /* signal was received */ |
125 |
#define EV_CHILD 0x00000800L /* child/pid had status change */ |
126 |
#define EV_STAT 0x00001000L /* stat data changed */ |
127 |
#define EV_IDLE 0x00002000L /* event loop is idling */ |
128 |
#define EV_PREPARE 0x00004000L /* event loop about to poll */ |
129 |
#define EV_CHECK 0x00008000L /* event loop finished poll */ |
130 |
#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
131 |
#define EV_FORK 0x00020000L /* event loop resumed in child */ |
132 |
#define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
133 |
#define EV_ERROR 0x80000000L /* sent when an error occurs */ |
134 |
|
135 |
/* can be used to add custom fields to all watchers, while losing binary compatibility */ |
136 |
#ifndef EV_COMMON |
137 |
# define EV_COMMON void *data; |
138 |
#endif |
139 |
#ifndef EV_PROTOTYPES |
140 |
# define EV_PROTOTYPES 1 |
141 |
#endif |
142 |
|
143 |
#define EV_VERSION_MAJOR 3 |
144 |
#define EV_VERSION_MINOR 0 |
145 |
|
146 |
#ifndef EV_CB_DECLARE |
147 |
# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
148 |
#endif |
149 |
#ifndef EV_CB_INVOKE |
150 |
# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
151 |
#endif |
152 |
|
153 |
/* |
154 |
* struct member types: |
155 |
* private: you can look at them, but not change them, and they might not mean anything to you. |
156 |
* ro: can be read anytime, but only changed when the watcher isn't active |
157 |
* rw: can be read and modified anytime, even when the watcher is active |
158 |
*/ |
159 |
|
160 |
/* shared by all watchers */ |
161 |
#define EV_WATCHER(type) \ |
162 |
int active; /* private */ \ |
163 |
int pending; /* private */ \ |
164 |
int priority; /* private */ \ |
165 |
EV_COMMON /* rw */ \ |
166 |
EV_CB_DECLARE (type) /* private */ |
167 |
|
168 |
#define EV_WATCHER_LIST(type) \ |
169 |
EV_WATCHER (type) \ |
170 |
struct ev_watcher_list *next; /* private */ |
171 |
|
172 |
#define EV_WATCHER_TIME(type) \ |
173 |
EV_WATCHER (type) \ |
174 |
ev_tstamp at; /* private */ |
175 |
|
176 |
/* base class, nothing to see here unless you subclass */ |
177 |
typedef struct ev_watcher |
178 |
{ |
179 |
EV_WATCHER (ev_watcher) |
180 |
} ev_watcher; |
181 |
|
182 |
/* base class, nothing to see here unless you subclass */ |
183 |
typedef struct ev_watcher_list |
184 |
{ |
185 |
EV_WATCHER_LIST (ev_watcher_list) |
186 |
} ev_watcher_list; |
187 |
|
188 |
/* base class, nothing to see here unless you subclass */ |
189 |
typedef struct ev_watcher_time |
190 |
{ |
191 |
EV_WATCHER_TIME (ev_watcher_time) |
192 |
} ev_watcher_time; |
193 |
|
194 |
/* invoked when fd is either EV_READable or EV_WRITEable */ |
195 |
/* revent EV_READ, EV_WRITE */ |
196 |
typedef struct ev_io |
197 |
{ |
198 |
EV_WATCHER_LIST (ev_io) |
199 |
|
200 |
int fd; /* ro */ |
201 |
int events; /* ro */ |
202 |
} ev_io; |
203 |
|
204 |
/* invoked after a specific time, repeatable (based on monotonic clock) */ |
205 |
/* revent EV_TIMEOUT */ |
206 |
typedef struct ev_timer |
207 |
{ |
208 |
EV_WATCHER_TIME (ev_timer) |
209 |
|
210 |
ev_tstamp repeat; /* rw */ |
211 |
} ev_timer; |
212 |
|
213 |
/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
214 |
/* revent EV_PERIODIC */ |
215 |
typedef struct ev_periodic |
216 |
{ |
217 |
EV_WATCHER_TIME (ev_periodic) |
218 |
|
219 |
ev_tstamp offset; /* rw */ |
220 |
ev_tstamp interval; /* rw */ |
221 |
ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
222 |
} ev_periodic; |
223 |
|
224 |
/* invoked when the given signal has been received */ |
225 |
/* revent EV_SIGNAL */ |
226 |
typedef struct ev_signal |
227 |
{ |
228 |
EV_WATCHER_LIST (ev_signal) |
229 |
|
230 |
int signum; /* ro */ |
231 |
} ev_signal; |
232 |
|
233 |
/* invoked when sigchld is received and waitpid indicates the given pid */ |
234 |
/* revent EV_CHILD */ |
235 |
/* does not support priorities */ |
236 |
typedef struct ev_child |
237 |
{ |
238 |
EV_WATCHER_LIST (ev_child) |
239 |
|
240 |
int flags; /* private */ |
241 |
int pid; /* ro */ |
242 |
int rpid; /* rw, holds the received pid */ |
243 |
int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
244 |
} ev_child; |
245 |
|
246 |
#if EV_STAT_ENABLE |
247 |
/* st_nlink = 0 means missing file or other error */ |
248 |
# ifdef _WIN32 |
249 |
typedef struct _stati64 ev_statdata; |
250 |
# else |
251 |
typedef struct stat ev_statdata; |
252 |
# endif |
253 |
|
254 |
/* invoked each time the stat data changes for a given path */ |
255 |
/* revent EV_STAT */ |
256 |
typedef struct ev_stat |
257 |
{ |
258 |
EV_WATCHER_LIST (ev_stat) |
259 |
|
260 |
ev_timer timer; /* private */ |
261 |
ev_tstamp interval; /* ro */ |
262 |
const char *path; /* ro */ |
263 |
ev_statdata prev; /* ro */ |
264 |
ev_statdata attr; /* ro */ |
265 |
|
266 |
int wd; /* wd for inotify, fd for kqueue */ |
267 |
} ev_stat; |
268 |
#endif |
269 |
|
270 |
#if EV_IDLE_ENABLE |
271 |
/* invoked when the nothing else needs to be done, keeps the process from blocking */ |
272 |
/* revent EV_IDLE */ |
273 |
typedef struct ev_idle |
274 |
{ |
275 |
EV_WATCHER (ev_idle) |
276 |
} ev_idle; |
277 |
#endif |
278 |
|
279 |
/* invoked for each run of the mainloop, just before the blocking call */ |
280 |
/* you can still change events in any way you like */ |
281 |
/* revent EV_PREPARE */ |
282 |
typedef struct ev_prepare |
283 |
{ |
284 |
EV_WATCHER (ev_prepare) |
285 |
} ev_prepare; |
286 |
|
287 |
/* invoked for each run of the mainloop, just after the blocking call */ |
288 |
/* revent EV_CHECK */ |
289 |
typedef struct ev_check |
290 |
{ |
291 |
EV_WATCHER (ev_check) |
292 |
} ev_check; |
293 |
|
294 |
#if EV_FORK_ENABLE |
295 |
/* the callback gets invoked before check in the child process when a fork was detected */ |
296 |
typedef struct ev_fork |
297 |
{ |
298 |
EV_WATCHER (ev_fork) |
299 |
} ev_fork; |
300 |
#endif |
301 |
|
302 |
#if EV_EMBED_ENABLE |
303 |
/* used to embed an event loop inside another */ |
304 |
/* the callback gets invoked when the event loop has handled events, and can be 0 */ |
305 |
typedef struct ev_embed |
306 |
{ |
307 |
EV_WATCHER (ev_embed) |
308 |
|
309 |
struct ev_loop *other; /* ro */ |
310 |
ev_io io; /* private */ |
311 |
ev_prepare prepare; /* private */ |
312 |
ev_check check; /* unused */ |
313 |
ev_timer timer; /* unused */ |
314 |
ev_periodic periodic; /* unused */ |
315 |
ev_idle idle; /* unused */ |
316 |
ev_fork fork; /* unused */ |
317 |
} ev_embed; |
318 |
#endif |
319 |
|
320 |
#if EV_ASYNC_ENABLE |
321 |
/* invoked when somebody calls ev_async_send on the watcher */ |
322 |
/* revent EV_ASYNC */ |
323 |
typedef struct ev_async |
324 |
{ |
325 |
EV_WATCHER (ev_async) |
326 |
|
327 |
EV_ATOMIC_T sent; /* private */ |
328 |
} ev_async; |
329 |
#endif |
330 |
|
331 |
/* the presence of this union forces similar struct layout */ |
332 |
union ev_any_watcher |
333 |
{ |
334 |
struct ev_watcher w; |
335 |
struct ev_watcher_list wl; |
336 |
|
337 |
struct ev_io io; |
338 |
struct ev_timer timer; |
339 |
struct ev_periodic periodic; |
340 |
struct ev_signal signal; |
341 |
struct ev_child child; |
342 |
#if EV_STAT_ENABLE |
343 |
struct ev_stat stat; |
344 |
#endif |
345 |
#if EV_IDLE_ENABLE |
346 |
struct ev_idle idle; |
347 |
#endif |
348 |
struct ev_prepare prepare; |
349 |
struct ev_check check; |
350 |
#if EV_FORK_ENABLE |
351 |
struct ev_fork fork; |
352 |
#endif |
353 |
#if EV_EMBED_ENABLE |
354 |
struct ev_embed embed; |
355 |
#endif |
356 |
#if EV_ASYND_ENABLE |
357 |
struct ev_async async; |
358 |
#endif |
359 |
}; |
360 |
|
361 |
/* bits for ev_default_loop and ev_loop_new */ |
362 |
/* the default */ |
363 |
#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
364 |
/* flag bits */ |
365 |
#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
366 |
#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
367 |
/* method bits to be ored together */ |
368 |
#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
369 |
#define EVBACKEND_POLL 0x00000002UL /* !win */ |
370 |
#define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
371 |
#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
372 |
#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
373 |
#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
374 |
|
375 |
#if EV_PROTOTYPES |
376 |
int ev_version_major (void); |
377 |
int ev_version_minor (void); |
378 |
|
379 |
unsigned int ev_supported_backends (void); |
380 |
unsigned int ev_recommended_backends (void); |
381 |
unsigned int ev_embeddable_backends (void); |
382 |
|
383 |
ev_tstamp ev_time (void); |
384 |
void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
385 |
|
386 |
/* Sets the allocation function to use, works like realloc. |
387 |
* It is used to allocate and free memory. |
388 |
* If it returns zero when memory needs to be allocated, the library might abort |
389 |
* or take some potentially destructive action. |
390 |
* The default is your system realloc function. |
391 |
*/ |
392 |
void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
393 |
|
394 |
/* set the callback function to call on a |
395 |
* retryable syscall error |
396 |
* (such as failed select, poll, epoll_wait) |
397 |
*/ |
398 |
void ev_set_syserr_cb (void (*cb)(const char *msg)); |
399 |
|
400 |
# if EV_MULTIPLICITY |
401 |
/* the default loop is the only one that handles signals and child watchers */ |
402 |
/* you can call this as often as you like */ |
403 |
static struct ev_loop * |
404 |
ev_default_loop (unsigned int flags) |
405 |
{ |
406 |
extern struct ev_loop *ev_default_loop_ptr; |
407 |
extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
408 |
|
409 |
if (!ev_default_loop_ptr) |
410 |
ev_default_loop_init (flags); |
411 |
|
412 |
return ev_default_loop_ptr; |
413 |
} |
414 |
|
415 |
/* create and destroy alternative loops that don't handle signals */ |
416 |
struct ev_loop *ev_loop_new (unsigned int flags); |
417 |
void ev_loop_destroy (EV_P); |
418 |
void ev_loop_fork (EV_P); |
419 |
|
420 |
ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
421 |
|
422 |
# else |
423 |
|
424 |
int ev_default_loop (unsigned int flags); /* returns true when successful */ |
425 |
|
426 |
static ev_tstamp |
427 |
ev_now (void) |
428 |
{ |
429 |
extern ev_tstamp ev_rt_now; |
430 |
|
431 |
return ev_rt_now; |
432 |
} |
433 |
# endif |
434 |
|
435 |
void ev_default_destroy (void); /* destroy the default loop */ |
436 |
/* this needs to be called after fork, to duplicate the default loop */ |
437 |
/* if you create alternative loops you have to call ev_loop_fork on them */ |
438 |
/* you can call it in either the parent or the child */ |
439 |
/* you can actually call it at any time, anywhere :) */ |
440 |
void ev_default_fork (void); |
441 |
|
442 |
unsigned int ev_backend (EV_P); /* backend in use by loop */ |
443 |
unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
444 |
#endif |
445 |
|
446 |
#define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
447 |
#define EVLOOP_ONESHOT 2 /* block *once* only */ |
448 |
#define EVUNLOOP_CANCEL 0 /* undo unloop */ |
449 |
#define EVUNLOOP_ONE 1 /* unloop once */ |
450 |
#define EVUNLOOP_ALL 2 /* unloop all loops */ |
451 |
|
452 |
#if EV_PROTOTYPES |
453 |
void ev_loop (EV_P_ int flags); |
454 |
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 */ |
455 |
|
456 |
void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
457 |
void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
458 |
|
459 |
/* |
460 |
* ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
461 |
* keeps one reference. if you have a long-runing watcher you never unregister that |
462 |
* should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
463 |
*/ |
464 |
void ev_ref (EV_P); |
465 |
void ev_unref (EV_P); |
466 |
|
467 |
/* convinience function, wait for a single event, without registering an event watcher */ |
468 |
/* if timeout is < 0, do wait indefinitely */ |
469 |
void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
470 |
#endif |
471 |
|
472 |
/* these may evaluate ev multiple times, and the other arguments at most once */ |
473 |
/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
474 |
#define ev_init(ev,cb_) do { \ |
475 |
((ev_watcher *)(void *)(ev))->active = \ |
476 |
((ev_watcher *)(void *)(ev))->pending = \ |
477 |
((ev_watcher *)(void *)(ev))->priority = 0; \ |
478 |
ev_set_cb ((ev), cb_); \ |
479 |
} while (0) |
480 |
|
481 |
#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
482 |
#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
483 |
#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
484 |
#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
485 |
#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
486 |
#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
487 |
#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
488 |
#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
489 |
#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
490 |
#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
491 |
#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
492 |
#define ev_async_set(ev) do { (ev)->gotasync = 0; } while (0) |
493 |
|
494 |
#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
495 |
#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
496 |
#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
497 |
#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
498 |
#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
499 |
#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
500 |
#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
501 |
#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
502 |
#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
503 |
#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
504 |
#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
505 |
#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
506 |
|
507 |
#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
508 |
#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
509 |
|
510 |
#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
511 |
#define ev_cb(ev) (ev)->cb /* rw */ |
512 |
#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
513 |
|
514 |
#ifndef ev_set_cb |
515 |
# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
516 |
#endif |
517 |
|
518 |
/* stopping (enabling, adding) a watcher does nothing if it is already running */ |
519 |
/* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
520 |
#if EV_PROTOTYPES |
521 |
|
522 |
/* feeds an event into a watcher as if the event actually occured */ |
523 |
/* accepts any ev_watcher type */ |
524 |
void ev_feed_event (EV_P_ void *w, int revents); |
525 |
void ev_feed_fd_event (EV_P_ int fd, int revents); |
526 |
void ev_feed_signal_event (EV_P_ int signum); |
527 |
void ev_invoke (EV_P_ void *w, int revents); |
528 |
int ev_clear_pending (EV_P_ void *w); |
529 |
|
530 |
void ev_io_start (EV_P_ ev_io *w); |
531 |
void ev_io_stop (EV_P_ ev_io *w); |
532 |
|
533 |
void ev_timer_start (EV_P_ ev_timer *w); |
534 |
void ev_timer_stop (EV_P_ ev_timer *w); |
535 |
/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
536 |
void ev_timer_again (EV_P_ ev_timer *w); |
537 |
|
538 |
#if EV_PERIODIC_ENABLE |
539 |
void ev_periodic_start (EV_P_ ev_periodic *w); |
540 |
void ev_periodic_stop (EV_P_ ev_periodic *w); |
541 |
void ev_periodic_again (EV_P_ ev_periodic *w); |
542 |
#endif |
543 |
|
544 |
/* only supported in the default loop */ |
545 |
void ev_signal_start (EV_P_ ev_signal *w); |
546 |
void ev_signal_stop (EV_P_ ev_signal *w); |
547 |
|
548 |
/* only supported in the default loop */ |
549 |
void ev_child_start (EV_P_ ev_child *w); |
550 |
void ev_child_stop (EV_P_ ev_child *w); |
551 |
|
552 |
# if EV_STAT_ENABLE |
553 |
void ev_stat_start (EV_P_ ev_stat *w); |
554 |
void ev_stat_stop (EV_P_ ev_stat *w); |
555 |
void ev_stat_stat (EV_P_ ev_stat *w); |
556 |
# endif |
557 |
|
558 |
# if EV_IDLE_ENABLE |
559 |
void ev_idle_start (EV_P_ ev_idle *w); |
560 |
void ev_idle_stop (EV_P_ ev_idle *w); |
561 |
# endif |
562 |
|
563 |
void ev_prepare_start (EV_P_ ev_prepare *w); |
564 |
void ev_prepare_stop (EV_P_ ev_prepare *w); |
565 |
|
566 |
void ev_check_start (EV_P_ ev_check *w); |
567 |
void ev_check_stop (EV_P_ ev_check *w); |
568 |
|
569 |
# if EV_FORK_ENABLE |
570 |
void ev_fork_start (EV_P_ ev_fork *w); |
571 |
void ev_fork_stop (EV_P_ ev_fork *w); |
572 |
# endif |
573 |
|
574 |
# if EV_EMBED_ENABLE |
575 |
/* only supported when loop to be embedded is in fact embeddable */ |
576 |
void ev_embed_start (EV_P_ ev_embed *w); |
577 |
void ev_embed_stop (EV_P_ ev_embed *w); |
578 |
void ev_embed_sweep (EV_P_ ev_embed *w); |
579 |
# endif |
580 |
|
581 |
# if EV_ASYNC_ENABLE |
582 |
void ev_async_start (EV_P_ ev_async *w); |
583 |
void ev_async_stop (EV_P_ ev_async *w); |
584 |
void ev_async_send (EV_P_ ev_async *w); |
585 |
# endif |
586 |
|
587 |
#endif |
588 |
|
589 |
#ifdef __cplusplus |
590 |
} |
591 |
#endif |
592 |
|
593 |
#endif |
594 |
|