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Comparing libev/ev.h (file contents):
Revision 1.68 by root, Sat Nov 24 09:48:38 2007 UTC vs.
Revision 1.96 by root, Sun Apr 6 14:34:51 2008 UTC

1/* 1/*
2 * libev native API header
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved. 5 * All rights reserved.
4 * 6 *
5 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without modifica-
6 * modification, are permitted provided that the following conditions are 8 * tion, are permitted provided that the following conditions are met:
7 * met: 9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
8 * 27 *
9 * * Redistributions of source code must retain the above copyright 28 * Alternatively, the contents of this file may be used under the terms of
10 * notice, this list of conditions and the following disclaimer. 29 * the GNU General Public License ("GPL") version 2 or any later version,
11 * 30 * in which case the provisions of the GPL are applicable instead of
12 * * Redistributions in binary form must reproduce the above 31 * the above. If you wish to allow the use of your version of this file
13 * copyright notice, this list of conditions and the following 32 * only under the terms of the GPL and not to allow others to use your
14 * disclaimer in the documentation and/or other materials provided 33 * version of this file under the BSD license, indicate your decision
15 * with the distribution. 34 * by deleting the provisions above and replace them with the notice
16 * 35 * and other provisions required by the GPL. If you do not delete the
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 * provisions above, a recipient may use your version of this file under
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 * either the BSD or the GPL.
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 38 */
29 39
30#ifndef EV_H__ 40#ifndef EV_H__
31#define EV_H__ 41#define EV_H__
32 42
… …
46 56
47#ifndef EV_MULTIPLICITY 57#ifndef EV_MULTIPLICITY
48# define EV_MULTIPLICITY 1 58# define EV_MULTIPLICITY 1
49#endif 59#endif
50 60
51#ifndef EV_PERIODICS 61#ifndef EV_PERIODIC_ENABLE
52# define EV_PERIODICS 1 62# define EV_PERIODIC_ENABLE 1
63#endif
64
65#ifndef EV_STAT_ENABLE
66# define EV_STAT_ENABLE 1
67#endif
68
69#ifndef EV_IDLE_ENABLE
70# define EV_IDLE_ENABLE 1
71#endif
72
73#ifndef EV_FORK_ENABLE
74# define EV_FORK_ENABLE 1
75#endif
76
77#ifndef EV_EMBED_ENABLE
78# define EV_EMBED_ENABLE 1
79#endif
80
81#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>
53#endif 94#endif
54 95
55/* support multiple event loops? */ 96/* support multiple event loops? */
56#if EV_MULTIPLICITY 97#if EV_MULTIPLICITY
57struct ev_loop; 98struct ev_loop;
58# define EV_P struct ev_loop *loop 99# define EV_P struct ev_loop *loop
59# define EV_P_ EV_P, 100# define EV_P_ EV_P,
60# define EV_A loop 101# define EV_A loop
61# define EV_A_ EV_A, 102# define EV_A_ EV_A,
103# define EV_DEFAULT_UC ev_default_loop_uc ()
104# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
62# define EV_DEFAULT_A ev_default_loop (0) 105# define EV_DEFAULT ev_default_loop (0)
63# define EV_DEFAULT_A_ EV_DEFAULT_A, 106# define EV_DEFAULT_ EV_DEFAULT,
64#else 107#else
65# define EV_P void 108# define EV_P void
66# define EV_P_ 109# define EV_P_
67# define EV_A 110# define EV_A
68# define EV_A_ 111# define EV_A_
112# define EV_DEFAULT
69# define EV_DEFAULT_A 113# define EV_DEFAULT_
114# define EV_DEFAULT_UC
70# define EV_DEFAULT_A_ 115# define EV_DEFAULT_UC_
116# undef EV_EMBED_ENABLE
71#endif 117#endif
118
119#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
120# define EV_INLINE static inline
121#else
122# define EV_INLINE static
123#endif
124
125/*****************************************************************************/
72 126
73/* eventmask, revents, events... */ 127/* eventmask, revents, events... */
74#define EV_UNDEF -1L /* guaranteed to be invalid */ 128#define EV_UNDEF -1L /* guaranteed to be invalid */
75#define EV_NONE 0x00L 129#define EV_NONE 0x00L /* no events */
76#define EV_READ 0x01L /* io only */ 130#define EV_READ 0x01L /* ev_io detected read will not block */
131#define EV_WRITE 0x02L /* ev_io detected write will not block */
77#define EV_WRITE 0x02L /* io only */ 132#define EV_IOFDSET 0x80L /* internal use only */
78#define EV_TIMEOUT 0x000100L /* timer only */ 133#define EV_TIMEOUT 0x00000100L /* timer timed out */
79#define EV_PERIODIC 0x000200L /* periodic timer only */ 134#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
80#define EV_SIGNAL 0x000400L /* signal only */ 135#define EV_SIGNAL 0x00000400L /* signal was received */
81#define EV_IDLE 0x000800L /* idle only */
82#define EV_CHECK 0x001000L /* check only */
83#define EV_PREPARE 0x002000L /* prepare only */
84#define EV_CHILD 0x004000L /* child/pid only */ 136#define EV_CHILD 0x00000800L /* child/pid had status change */
137#define EV_STAT 0x00001000L /* stat data changed */
138#define EV_IDLE 0x00002000L /* event loop is idling */
139#define EV_PREPARE 0x00004000L /* event loop about to poll */
140#define EV_CHECK 0x00008000L /* event loop finished poll */
85#define EV_EMBED 0x008000L /* embedded event loop */ 141#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
142#define EV_FORK 0x00020000L /* event loop resumed in child */
143#define EV_ASYNC 0x00040000L /* async intra-loop signal */
86#define EV_ERROR 0x800000L /* sent when an error occurs */ 144#define EV_ERROR 0x80000000L /* sent when an error occurs */
87 145
88/* can be used to add custom fields to all watchers, while losing binary compatibility */ 146/* can be used to add custom fields to all watchers, while losing binary compatibility */
89#ifndef EV_COMMON 147#ifndef EV_COMMON
90# define EV_COMMON void *data; 148# define EV_COMMON void *data;
91#endif 149#endif
92#ifndef EV_PROTOTYPES 150#ifndef EV_PROTOTYPES
93# define EV_PROTOTYPES 1 151# define EV_PROTOTYPES 1
94#endif 152#endif
95 153
96#define EV_VERSION_MAJOR 1 154#define EV_VERSION_MAJOR 3
97#define EV_VERSION_MINOR 1 155#define EV_VERSION_MINOR 0
98 156
99#ifndef EV_CB_DECLARE 157#ifndef EV_CB_DECLARE
100# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 158# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
101#endif 159#endif
102#ifndef EV_CB_INVOKE 160#ifndef EV_CB_INVOKE
… …
142typedef struct ev_watcher_time 200typedef struct ev_watcher_time
143{ 201{
144 EV_WATCHER_TIME (ev_watcher_time) 202 EV_WATCHER_TIME (ev_watcher_time)
145} ev_watcher_time; 203} ev_watcher_time;
146 204
205/* invoked when fd is either EV_READable or EV_WRITEable */
206/* revent EV_READ, EV_WRITE */
207typedef struct ev_io
208{
209 EV_WATCHER_LIST (ev_io)
210
211 int fd; /* ro */
212 int events; /* ro */
213} ev_io;
214
147/* invoked after a specific time, repeatable (based on monotonic clock) */ 215/* invoked after a specific time, repeatable (based on monotonic clock) */
148/* revent EV_TIMEOUT */ 216/* revent EV_TIMEOUT */
149typedef struct ev_timer 217typedef struct ev_timer
150{ 218{
151 EV_WATCHER_TIME (ev_timer) 219 EV_WATCHER_TIME (ev_timer)
… …
157/* revent EV_PERIODIC */ 225/* revent EV_PERIODIC */
158typedef struct ev_periodic 226typedef struct ev_periodic
159{ 227{
160 EV_WATCHER_TIME (ev_periodic) 228 EV_WATCHER_TIME (ev_periodic)
161 229
230 ev_tstamp offset; /* rw */
162 ev_tstamp interval; /* rw */ 231 ev_tstamp interval; /* rw */
163 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 232 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
164} ev_periodic; 233} ev_periodic;
165 234
166/* invoked when fd is either EV_READable or EV_WRITEable */
167/* revent EV_READ, EV_WRITE */
168typedef struct ev_io
169{
170 EV_WATCHER_LIST (ev_io)
171
172 int fd; /* ro */
173 int events; /* ro */
174} ev_io;
175
176/* invoked when the given signal has been received */ 235/* invoked when the given signal has been received */
177/* revent EV_SIGNAL */ 236/* revent EV_SIGNAL */
178typedef struct ev_signal 237typedef struct ev_signal
179{ 238{
180 EV_WATCHER_LIST (ev_signal) 239 EV_WATCHER_LIST (ev_signal)
181 240
182 int signum; /* ro */ 241 int signum; /* ro */
183} ev_signal; 242} ev_signal;
184 243
244/* invoked when sigchld is received and waitpid indicates the given pid */
245/* revent EV_CHILD */
246/* does not support priorities */
247typedef struct ev_child
248{
249 EV_WATCHER_LIST (ev_child)
250
251 int flags; /* private */
252 int pid; /* ro */
253 int rpid; /* rw, holds the received pid */
254 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
255} ev_child;
256
257#if EV_STAT_ENABLE
258/* st_nlink = 0 means missing file or other error */
259# ifdef _WIN32
260typedef struct _stati64 ev_statdata;
261# else
262typedef struct stat ev_statdata;
263# endif
264
265/* invoked each time the stat data changes for a given path */
266/* revent EV_STAT */
267typedef struct ev_stat
268{
269 EV_WATCHER_LIST (ev_stat)
270
271 ev_timer timer; /* private */
272 ev_tstamp interval; /* ro */
273 const char *path; /* ro */
274 ev_statdata prev; /* ro */
275 ev_statdata attr; /* ro */
276
277 int wd; /* wd for inotify, fd for kqueue */
278} ev_stat;
279#endif
280
281#if EV_IDLE_ENABLE
185/* invoked when the nothing else needs to be done, keeps the process from blocking */ 282/* invoked when the nothing else needs to be done, keeps the process from blocking */
186/* revent EV_IDLE */ 283/* revent EV_IDLE */
187typedef struct ev_idle 284typedef struct ev_idle
188{ 285{
189 EV_WATCHER (ev_idle) 286 EV_WATCHER (ev_idle)
190} ev_idle; 287} ev_idle;
288#endif
191 289
192/* invoked for each run of the mainloop, just before the blocking call */ 290/* invoked for each run of the mainloop, just before the blocking call */
193/* you can still change events in any way you like */ 291/* you can still change events in any way you like */
194/* revent EV_PREPARE */ 292/* revent EV_PREPARE */
195typedef struct ev_prepare 293typedef struct ev_prepare
… …
202typedef struct ev_check 300typedef struct ev_check
203{ 301{
204 EV_WATCHER (ev_check) 302 EV_WATCHER (ev_check)
205} ev_check; 303} ev_check;
206 304
207/* invoked when sigchld is received and waitpid indicates the given pid */ 305#if EV_FORK_ENABLE
208/* revent EV_CHILD */ 306/* the callback gets invoked before check in the child process when a fork was detected */
209/* does not support priorities */
210typedef struct ev_child 307typedef struct ev_fork
211{ 308{
212 EV_WATCHER_LIST (ev_child) 309 EV_WATCHER (ev_fork)
310} ev_fork;
311#endif
213 312
214 int pid; /* ro */ 313#if EV_EMBED_ENABLE
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_MULTIPLICITY
220/* used to embed an event loop inside another */ 314/* used to embed an event loop inside another */
221/* the callback gets invoked when the event loop has handled events, and can be 0 */ 315/* the callback gets invoked when the event loop has handled events, and can be 0 */
222typedef struct ev_embed 316typedef struct ev_embed
223{ 317{
224 EV_WATCHER (ev_embed) 318 EV_WATCHER (ev_embed)
225 319
226 ev_io io; /* private */
227 struct ev_loop *loop; /* ro */ 320 struct ev_loop *other; /* ro */
321 ev_io io; /* private */
322 ev_prepare prepare; /* private */
323 ev_check check; /* unused */
324 ev_timer timer; /* unused */
325 ev_periodic periodic; /* unused */
326 ev_idle idle; /* unused */
327 ev_fork fork; /* unused */
228} ev_embed; 328} ev_embed;
329#endif
330
331#if EV_ASYNC_ENABLE
332/* invoked when somebody calls ev_async_send on the watcher */
333/* revent EV_ASYNC */
334typedef struct ev_async
335{
336 EV_WATCHER (ev_async)
337
338 EV_ATOMIC_T sent; /* private */
339} ev_async;
340
341# define ev_async_pending(w) (((w)->sent + 0)
229#endif 342#endif
230 343
231/* the presence of this union forces similar struct layout */ 344/* the presence of this union forces similar struct layout */
232union ev_any_watcher 345union ev_any_watcher
233{ 346{
… …
235 struct ev_watcher_list wl; 348 struct ev_watcher_list wl;
236 349
237 struct ev_io io; 350 struct ev_io io;
238 struct ev_timer timer; 351 struct ev_timer timer;
239 struct ev_periodic periodic; 352 struct ev_periodic periodic;
353 struct ev_signal signal;
354 struct ev_child child;
355#if EV_STAT_ENABLE
356 struct ev_stat stat;
357#endif
358#if EV_IDLE_ENABLE
240 struct ev_idle idle; 359 struct ev_idle idle;
360#endif
241 struct ev_prepare prepare; 361 struct ev_prepare prepare;
242 struct ev_check check; 362 struct ev_check check;
243 struct ev_signal signal; 363#if EV_FORK_ENABLE
244 struct ev_child child; 364 struct ev_fork fork;
245#if EV_MULTIPLICITY 365#endif
366#if EV_EMBED_ENABLE
246 struct ev_embed embed; 367 struct ev_embed embed;
368#endif
369#if EV_ASYND_ENABLE
370 struct ev_async async;
247#endif 371#endif
248}; 372};
249 373
250/* bits for ev_default_loop and ev_loop_new */ 374/* bits for ev_default_loop and ev_loop_new */
251/* the default */ 375/* the default */
252#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ 376#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
253/* flag bits */ 377/* flag bits */
254#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ 378#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
379#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */
255/* method bits to be ored together */ 380/* method bits to be ored together */
256#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ 381#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
257#define EVBACKEND_POLL 0x00000002UL /* !win */ 382#define EVBACKEND_POLL 0x00000002UL /* !win */
258#define EVBACKEND_EPOLL 0x00000004UL /* linux */ 383#define EVBACKEND_EPOLL 0x00000004UL /* linux */
259#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ 384#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
… …
267unsigned int ev_supported_backends (void); 392unsigned int ev_supported_backends (void);
268unsigned int ev_recommended_backends (void); 393unsigned int ev_recommended_backends (void);
269unsigned int ev_embeddable_backends (void); 394unsigned int ev_embeddable_backends (void);
270 395
271ev_tstamp ev_time (void); 396ev_tstamp ev_time (void);
397void ev_sleep (ev_tstamp delay); /* sleep for a while */
272 398
273/* Sets the allocation function to use, works like realloc. 399/* Sets the allocation function to use, works like realloc.
274 * It is used to allocate and free memory. 400 * It is used to allocate and free memory.
275 * If it returns zero when memory needs to be allocated, the library might abort 401 * If it returns zero when memory needs to be allocated, the library might abort
276 * or take some potentially destructive action. 402 * or take some potentially destructive action.
… …
283 * (such as failed select, poll, epoll_wait) 409 * (such as failed select, poll, epoll_wait)
284 */ 410 */
285void ev_set_syserr_cb (void (*cb)(const char *msg)); 411void ev_set_syserr_cb (void (*cb)(const char *msg));
286 412
287# if EV_MULTIPLICITY 413# if EV_MULTIPLICITY
414EV_INLINE struct ev_loop *
415ev_default_loop_uc (void)
416{
417 extern struct ev_loop *ev_default_loop_ptr;
418
419 return ev_default_loop_ptr;
420}
421
288/* the default loop is the only one that handles signals and child watchers */ 422/* the default loop is the only one that handles signals and child watchers */
289/* you can call this as often as you like */ 423/* you can call this as often as you like */
290static struct ev_loop * 424EV_INLINE struct ev_loop *
291ev_default_loop (unsigned int flags) 425ev_default_loop (unsigned int flags)
292{ 426{
293 extern struct ev_loop *ev_default_loop_ptr; 427 struct ev_loop *loop = ev_default_loop_uc ();
428
429 if (!loop)
430 {
294 extern struct ev_loop *ev_default_loop_init (unsigned int flags); 431 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
295 432
296 if (!ev_default_loop_ptr)
297 ev_default_loop_init (flags); 433 loop = ev_default_loop_init (flags);
434 }
298 435
299 return ev_default_loop_ptr; 436 return loop;
300} 437}
301 438
302/* create and destroy alternative loops that don't handle signals */ 439/* create and destroy alternative loops that don't handle signals */
303struct ev_loop *ev_loop_new (unsigned int flags); 440struct ev_loop *ev_loop_new (unsigned int flags);
304void ev_loop_destroy (EV_P); 441void ev_loop_destroy (EV_P);
… …
308 445
309# else 446# else
310 447
311int ev_default_loop (unsigned int flags); /* returns true when successful */ 448int ev_default_loop (unsigned int flags); /* returns true when successful */
312 449
313static ev_tstamp 450EV_INLINE ev_tstamp
314ev_now (void) 451ev_now (void)
315{ 452{
316 extern ev_tstamp ev_rt_now; 453 extern ev_tstamp ev_rt_now;
317 454
318 return ev_rt_now; 455 return ev_rt_now;
319} 456}
320# endif 457# endif
458
459EV_INLINE int
460ev_is_default_loop (EV_P)
461{
462#if EV_MULTIPLICITY
463 extern struct ev_loop *ev_default_loop_ptr;
464
465 return !!(EV_A == ev_default_loop_ptr);
466#else
467 return 1;
468#endif
469}
321 470
322void ev_default_destroy (void); /* destroy the default loop */ 471void ev_default_destroy (void); /* destroy the default loop */
323/* this needs to be called after fork, to duplicate the default loop */ 472/* this needs to be called after fork, to duplicate the default loop */
324/* if you create alternative loops you have to call ev_loop_fork on them */ 473/* if you create alternative loops you have to call ev_loop_fork on them */
325/* you can call it in either the parent or the child */ 474/* you can call it in either the parent or the child */
326/* you can actually call it at any time, anywhere :) */ 475/* you can actually call it at any time, anywhere :) */
327void ev_default_fork (void); 476void ev_default_fork (void);
328 477
329unsigned int ev_backend (EV_P); 478unsigned int ev_backend (EV_P); /* backend in use by loop */
479unsigned int ev_loop_count (EV_P); /* number of loop iterations */
330#endif 480#endif
331 481
332#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 482#define EVLOOP_NONBLOCK 1 /* do not block/wait */
333#define EVLOOP_ONESHOT 2 /* block *once* only */ 483#define EVLOOP_ONESHOT 2 /* block *once* only */
334#define EVUNLOOP_CANCEL 0 /* undo unloop */ 484#define EVUNLOOP_CANCEL 0 /* undo unloop */
… …
336#define EVUNLOOP_ALL 2 /* unloop all loops */ 486#define EVUNLOOP_ALL 2 /* unloop all loops */
337 487
338#if EV_PROTOTYPES 488#if EV_PROTOTYPES
339void ev_loop (EV_P_ int flags); 489void ev_loop (EV_P_ int flags);
340void 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 */ 490void 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 */
491
492void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
493void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
341 494
342/* 495/*
343 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 496 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
344 * keeps one reference. if you have a long-runing watcher you never unregister that 497 * keeps one reference. if you have a long-runing watcher you never unregister that
345 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 498 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
… …
352void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 505void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
353#endif 506#endif
354 507
355/* these may evaluate ev multiple times, and the other arguments at most once */ 508/* these may evaluate ev multiple times, and the other arguments at most once */
356/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 509/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
357#define ev_init(ev,cb_) do { \ 510#define ev_init(ev,cb_) do { \
358 ((ev_watcher *)(void *)(ev))->active = \ 511 ((ev_watcher *)(void *)(ev))->active = \
359 ((ev_watcher *)(void *)(ev))->pending = \ 512 ((ev_watcher *)(void *)(ev))->pending = \
360 ((ev_watcher *)(void *)(ev))->priority = 0; \ 513 ((ev_watcher *)(void *)(ev))->priority = 0; \
361 ev_set_cb ((ev), cb_); \ 514 ev_set_cb ((ev), cb_); \
362} while (0) 515} while (0)
363 516
364#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 517#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0)
365#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 518#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
366#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 519#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
367#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 520#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
521#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
522#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
368#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 523#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
369#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 524#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
370#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 525#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
371#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
372#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) 526#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
527#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
528#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
373 529
374#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 530#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
375#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 531#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
376#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 532#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
377#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 533#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
534#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
535#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
378#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 536#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
379#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 537#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
380#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 538#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
381#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
382#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) 539#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
540#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
541#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
383 542
384#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 543#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
385#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 544#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
386 545
387#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ 546#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
388#define ev_cb(ev) (ev)->cb /* rw */ 547#define ev_cb(ev) (ev)->cb /* rw */
389#define ev_set_priority(ev,pri) ev_priority (ev) = (pri) 548#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
390 549
391#ifndef ev_set_cb 550#ifndef ev_set_cb
392# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 551# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
393#endif 552#endif
394 553
… …
399/* feeds an event into a watcher as if the event actually occured */ 558/* feeds an event into a watcher as if the event actually occured */
400/* accepts any ev_watcher type */ 559/* accepts any ev_watcher type */
401void ev_feed_event (EV_P_ void *w, int revents); 560void ev_feed_event (EV_P_ void *w, int revents);
402void ev_feed_fd_event (EV_P_ int fd, int revents); 561void ev_feed_fd_event (EV_P_ int fd, int revents);
403void ev_feed_signal_event (EV_P_ int signum); 562void ev_feed_signal_event (EV_P_ int signum);
563void ev_invoke (EV_P_ void *w, int revents);
564int ev_clear_pending (EV_P_ void *w);
404 565
405void ev_io_start (EV_P_ ev_io *w); 566void ev_io_start (EV_P_ ev_io *w);
406void ev_io_stop (EV_P_ ev_io *w); 567void ev_io_stop (EV_P_ ev_io *w);
407 568
408void ev_timer_start (EV_P_ ev_timer *w); 569void ev_timer_start (EV_P_ ev_timer *w);
409void ev_timer_stop (EV_P_ ev_timer *w); 570void ev_timer_stop (EV_P_ ev_timer *w);
410/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 571/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
411void ev_timer_again (EV_P_ ev_timer *w); 572void ev_timer_again (EV_P_ ev_timer *w);
412 573
413#if EV_PERIODICS 574#if EV_PERIODIC_ENABLE
414void ev_periodic_start (EV_P_ ev_periodic *w); 575void ev_periodic_start (EV_P_ ev_periodic *w);
415void ev_periodic_stop (EV_P_ ev_periodic *w); 576void ev_periodic_stop (EV_P_ ev_periodic *w);
416void ev_periodic_again (EV_P_ ev_periodic *w); 577void ev_periodic_again (EV_P_ ev_periodic *w);
417#endif 578#endif
418 579
419void ev_idle_start (EV_P_ ev_idle *w);
420void ev_idle_stop (EV_P_ ev_idle *w);
421
422void ev_prepare_start (EV_P_ ev_prepare *w);
423void ev_prepare_stop (EV_P_ ev_prepare *w);
424
425void ev_check_start (EV_P_ ev_check *w);
426void ev_check_stop (EV_P_ ev_check *w);
427
428/* only supported in the default loop */ 580/* only supported in the default loop */
429void ev_signal_start (EV_P_ ev_signal *w); 581void ev_signal_start (EV_P_ ev_signal *w);
430void ev_signal_stop (EV_P_ ev_signal *w); 582void ev_signal_stop (EV_P_ ev_signal *w);
431 583
432/* only supported in the default loop */ 584/* only supported in the default loop */
433void ev_child_start (EV_P_ ev_child *w); 585void ev_child_start (EV_P_ ev_child *w);
434void ev_child_stop (EV_P_ ev_child *w); 586void ev_child_stop (EV_P_ ev_child *w);
435 587
436# if EV_MULTIPLICITY 588# if EV_STAT_ENABLE
589void ev_stat_start (EV_P_ ev_stat *w);
590void ev_stat_stop (EV_P_ ev_stat *w);
591void ev_stat_stat (EV_P_ ev_stat *w);
592# endif
593
594# if EV_IDLE_ENABLE
595void ev_idle_start (EV_P_ ev_idle *w);
596void ev_idle_stop (EV_P_ ev_idle *w);
597# endif
598
599void ev_prepare_start (EV_P_ ev_prepare *w);
600void ev_prepare_stop (EV_P_ ev_prepare *w);
601
602void ev_check_start (EV_P_ ev_check *w);
603void ev_check_stop (EV_P_ ev_check *w);
604
605# if EV_FORK_ENABLE
606void ev_fork_start (EV_P_ ev_fork *w);
607void ev_fork_stop (EV_P_ ev_fork *w);
608# endif
609
610# if EV_EMBED_ENABLE
437/* only supported when loop to be embedded is in fact embeddable */ 611/* only supported when loop to be embedded is in fact embeddable */
438void ev_embed_start (EV_P_ ev_embed *w); 612void ev_embed_start (EV_P_ ev_embed *w);
439void ev_embed_stop (EV_P_ ev_embed *w); 613void ev_embed_stop (EV_P_ ev_embed *w);
440void ev_embed_sweep (EV_P_ ev_embed *w); 614void ev_embed_sweep (EV_P_ ev_embed *w);
441# endif 615# endif
442 616
617# if EV_ASYNC_ENABLE
618void ev_async_start (EV_P_ ev_async *w);
619void ev_async_stop (EV_P_ ev_async *w);
620void ev_async_send (EV_P_ ev_async *w);
621# endif
622
443#endif 623#endif
444 624
445#ifdef __cplusplus 625#ifdef __cplusplus
446} 626}
447#endif 627#endif

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