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Comparing libev/ev.h (file contents):
Revision 1.70 by root, Tue Nov 27 08:11:52 2007 UTC vs.
Revision 1.101 by root, Wed May 21 23:25:21 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
… …
54 64
55#ifndef EV_STAT_ENABLE 65#ifndef EV_STAT_ENABLE
56# define EV_STAT_ENABLE 1 66# define EV_STAT_ENABLE 1
57#endif 67#endif
58 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
59#ifndef EV_EMBED_ENABLE 77#ifndef EV_EMBED_ENABLE
60# define EV_EMBED_ENABLE 1 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
61#endif 88#endif
62 89
63/*****************************************************************************/ 90/*****************************************************************************/
64 91
65#if EV_STAT_ENABLE 92#if EV_STAT_ENABLE
… …
71struct ev_loop; 98struct ev_loop;
72# define EV_P struct ev_loop *loop 99# define EV_P struct ev_loop *loop
73# define EV_P_ EV_P, 100# define EV_P_ EV_P,
74# define EV_A loop 101# define EV_A loop
75# 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,
76# define EV_DEFAULT_A ev_default_loop (0) 105# define EV_DEFAULT ev_default_loop (0)
77# define EV_DEFAULT_A_ EV_DEFAULT_A, 106# define EV_DEFAULT_ EV_DEFAULT,
78#else 107#else
79# define EV_P void 108# define EV_P void
80# define EV_P_ 109# define EV_P_
81# define EV_A 110# define EV_A
82# define EV_A_ 111# define EV_A_
112# define EV_DEFAULT
83# define EV_DEFAULT_A 113# define EV_DEFAULT_
114# define EV_DEFAULT_UC
84# define EV_DEFAULT_A_ 115# define EV_DEFAULT_UC_
85
86# undef EV_EMBED_ENABLE 116# undef EV_EMBED_ENABLE
87#endif 117#endif
88 118
119#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
120# define EV_INLINE static inline
121#else
122# define EV_INLINE static
123#endif
124
125/*****************************************************************************/
126
89/* eventmask, revents, events... */ 127/* eventmask, revents, events... */
90#define EV_UNDEF -1L /* guaranteed to be invalid */ 128#define EV_UNDEF -1 /* guaranteed to be invalid */
91#define EV_NONE 0x00L /* no events */ 129#define EV_NONE 0x00 /* no events */
92#define EV_READ 0x01L /* ev_io detected read will not block */ 130#define EV_READ 0x01 /* ev_io detected read will not block */
93#define EV_WRITE 0x02L /* ev_io detected write will not block */ 131#define EV_WRITE 0x02 /* ev_io detected write will not block */
132#define EV_IOFDSET 0x80 /* internal use only */
94#define EV_TIMEOUT 0x00000100L /* timer timed out */ 133#define EV_TIMEOUT 0x00000100 /* timer timed out */
95#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ 134#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
96#define EV_SIGNAL 0x00000400L /* signal was received */ 135#define EV_SIGNAL 0x00000400 /* signal was received */
136#define EV_CHILD 0x00000800 /* child/pid had status change */
137#define EV_STAT 0x00001000 /* stat data changed */
97#define EV_IDLE 0x00000800L /* event loop is idling */ 138#define EV_IDLE 0x00002000 /* event loop is idling */
98#define EV_PREPARE 0x00001000L /* event loop about to poll */ 139#define EV_PREPARE 0x00004000 /* event loop about to poll */
99#define EV_CHECK 0x00002000L /* event loop finished poll */ 140#define EV_CHECK 0x00008000 /* event loop finished poll */
100#define EV_CHILD 0x00004000L /* child/pid had status change */
101#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */ 141#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
102#define EV_STAT 0x00010000L /* stat data changed */ 142#define EV_FORK 0x00020000 /* event loop resumed in child */
143#define EV_ASYNC 0x00040000 /* async intra-loop signal */
103#define EV_ERROR 0x80000000L /* sent when an error occurs */ 144#define EV_ERROR 0x80000000 /* sent when an error occurs */
104 145
105/* 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 */
106#ifndef EV_COMMON 147#ifndef EV_COMMON
107# define EV_COMMON void *data; 148# define EV_COMMON void *data;
108#endif 149#endif
109#ifndef EV_PROTOTYPES 150#ifndef EV_PROTOTYPES
110# define EV_PROTOTYPES 1 151# define EV_PROTOTYPES 1
111#endif 152#endif
112 153
113#define EV_VERSION_MAJOR 1 154#define EV_VERSION_MAJOR 3
114#define EV_VERSION_MINOR 1 155#define EV_VERSION_MINOR 0
115 156
116#ifndef EV_CB_DECLARE 157#ifndef EV_CB_DECLARE
117# 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);
118#endif 159#endif
119#ifndef EV_CB_INVOKE 160#ifndef EV_CB_INVOKE
… …
123/* 164/*
124 * struct member types: 165 * struct member types:
125 * private: you can look at them, but not change them, and they might not mean anything to you. 166 * private: you can look at them, but not change them, and they might not mean anything to you.
126 * ro: can be read anytime, but only changed when the watcher isn't active 167 * ro: can be read anytime, but only changed when the watcher isn't active
127 * rw: can be read and modified anytime, even when the watcher is active 168 * rw: can be read and modified anytime, even when the watcher is active
169 *
170 * some internal details that might be helpful for debugging:
171 *
172 * active is either 0, which means the watcher is not active,
173 * or the array index of the watcher (periodics, timers)
174 * or the array index + 1 (most other watchers)
175 * or simply 1 for watchers that aren't in some array.
176 * pending is either 0, in which case the watcher isn't,
177 * or the array index + 1 in the pendings array.
128 */ 178 */
129 179
130/* shared by all watchers */ 180/* shared by all watchers */
131#define EV_WATCHER(type) \ 181#define EV_WATCHER(type) \
132 int active; /* private */ \ 182 int active; /* private */ \
… …
184/* revent EV_PERIODIC */ 234/* revent EV_PERIODIC */
185typedef struct ev_periodic 235typedef struct ev_periodic
186{ 236{
187 EV_WATCHER_TIME (ev_periodic) 237 EV_WATCHER_TIME (ev_periodic)
188 238
239 ev_tstamp offset; /* rw */
189 ev_tstamp interval; /* rw */ 240 ev_tstamp interval; /* rw */
190 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 241 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
191} ev_periodic; 242} ev_periodic;
192 243
193/* invoked when the given signal has been received */ 244/* invoked when the given signal has been received */
… …
204/* does not support priorities */ 255/* does not support priorities */
205typedef struct ev_child 256typedef struct ev_child
206{ 257{
207 EV_WATCHER_LIST (ev_child) 258 EV_WATCHER_LIST (ev_child)
208 259
260 int flags; /* private */
209 int pid; /* ro */ 261 int pid; /* ro */
210 int rpid; /* rw, holds the received pid */ 262 int rpid; /* rw, holds the received pid */
211 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 263 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
212} ev_child; 264} ev_child;
213 265
214#if EV_STAT_ENABLE 266#if EV_STAT_ENABLE
215/* st_nlink = 0 means missing file or other error */ 267/* st_nlink = 0 means missing file or other error */
268# ifdef _WIN32
269typedef struct _stati64 ev_statdata;
270# else
216typedef struct stat ev_statdata; 271typedef struct stat ev_statdata;
272# endif
217 273
218/* invoked each time the stat data changes for a given path */ 274/* invoked each time the stat data changes for a given path */
219/* revent EV_STAT */ 275/* revent EV_STAT */
220typedef struct ev_stat 276typedef struct ev_stat
221{ 277{
222 EV_WATCHER (ev_stat) 278 EV_WATCHER_LIST (ev_stat)
223 279
224 ev_timer timer; /* private */ 280 ev_timer timer; /* private */
225 ev_tstamp interval; /* ro */ 281 ev_tstamp interval; /* ro */
226 const char *path; /* ro */ 282 const char *path; /* ro */
227 ev_statdata prev; /* ro */ 283 ev_statdata prev; /* ro */
228 ev_statdata attr; /* ro */ 284 ev_statdata attr; /* ro */
285
286 int wd; /* wd for inotify, fd for kqueue */
229} ev_stat; 287} ev_stat;
230#endif 288#endif
231 289
290#if EV_IDLE_ENABLE
232/* invoked when the nothing else needs to be done, keeps the process from blocking */ 291/* invoked when the nothing else needs to be done, keeps the process from blocking */
233/* revent EV_IDLE */ 292/* revent EV_IDLE */
234typedef struct ev_idle 293typedef struct ev_idle
235{ 294{
236 EV_WATCHER (ev_idle) 295 EV_WATCHER (ev_idle)
237} ev_idle; 296} ev_idle;
297#endif
238 298
239/* invoked for each run of the mainloop, just before the blocking call */ 299/* invoked for each run of the mainloop, just before the blocking call */
240/* you can still change events in any way you like */ 300/* you can still change events in any way you like */
241/* revent EV_PREPARE */ 301/* revent EV_PREPARE */
242typedef struct ev_prepare 302typedef struct ev_prepare
… …
249typedef struct ev_check 309typedef struct ev_check
250{ 310{
251 EV_WATCHER (ev_check) 311 EV_WATCHER (ev_check)
252} ev_check; 312} ev_check;
253 313
314#if EV_FORK_ENABLE
315/* the callback gets invoked before check in the child process when a fork was detected */
316typedef struct ev_fork
317{
318 EV_WATCHER (ev_fork)
319} ev_fork;
320#endif
321
254#if EV_EMBED_ENABLE 322#if EV_EMBED_ENABLE
255/* used to embed an event loop inside another */ 323/* used to embed an event loop inside another */
256/* the callback gets invoked when the event loop has handled events, and can be 0 */ 324/* the callback gets invoked when the event loop has handled events, and can be 0 */
257typedef struct ev_embed 325typedef struct ev_embed
258{ 326{
259 EV_WATCHER (ev_embed) 327 EV_WATCHER (ev_embed)
260 328
261 ev_io io; /* private */
262 struct ev_loop *loop; /* ro */ 329 struct ev_loop *other; /* ro */
330 ev_io io; /* private */
331 ev_prepare prepare; /* private */
332 ev_check check; /* unused */
333 ev_timer timer; /* unused */
334 ev_periodic periodic; /* unused */
335 ev_idle idle; /* unused */
336 ev_fork fork; /* unused */
263} ev_embed; 337} ev_embed;
338#endif
339
340#if EV_ASYNC_ENABLE
341/* invoked when somebody calls ev_async_send on the watcher */
342/* revent EV_ASYNC */
343typedef struct ev_async
344{
345 EV_WATCHER (ev_async)
346
347 EV_ATOMIC_T sent; /* private */
348} ev_async;
349
350# define ev_async_pending(w) ((w)->sent + 0)
264#endif 351#endif
265 352
266/* the presence of this union forces similar struct layout */ 353/* the presence of this union forces similar struct layout */
267union ev_any_watcher 354union ev_any_watcher
268{ 355{
… …
270 struct ev_watcher_list wl; 357 struct ev_watcher_list wl;
271 358
272 struct ev_io io; 359 struct ev_io io;
273 struct ev_timer timer; 360 struct ev_timer timer;
274 struct ev_periodic periodic; 361 struct ev_periodic periodic;
362 struct ev_signal signal;
275 struct ev_child child; 363 struct ev_child child;
276#if EV_STAT_ENABLE 364#if EV_STAT_ENABLE
277 struct ev_stat stat; 365 struct ev_stat stat;
278#endif 366#endif
367#if EV_IDLE_ENABLE
279 struct ev_idle idle; 368 struct ev_idle idle;
369#endif
280 struct ev_prepare prepare; 370 struct ev_prepare prepare;
281 struct ev_check check; 371 struct ev_check check;
282 struct ev_signal signal; 372#if EV_FORK_ENABLE
373 struct ev_fork fork;
374#endif
283#if EV_EMBED_ENABLE 375#if EV_EMBED_ENABLE
284 struct ev_embed embed; 376 struct ev_embed embed;
285#endif 377#endif
378#if EV_ASYNC_ENABLE
379 struct ev_async async;
380#endif
286}; 381};
287 382
288/* bits for ev_default_loop and ev_loop_new */ 383/* bits for ev_default_loop and ev_loop_new */
289/* the default */ 384/* the default */
290#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ 385#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
291/* flag bits */ 386/* flag bits */
292#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ 387#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
388#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
293/* method bits to be ored together */ 389/* method bits to be ored together */
294#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ 390#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
295#define EVBACKEND_POLL 0x00000002UL /* !win */ 391#define EVBACKEND_POLL 0x00000002U /* !win */
296#define EVBACKEND_EPOLL 0x00000004UL /* linux */ 392#define EVBACKEND_EPOLL 0x00000004U /* linux */
297#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ 393#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
298#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ 394#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
299#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ 395#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
300 396
301#if EV_PROTOTYPES 397#if EV_PROTOTYPES
302int ev_version_major (void); 398int ev_version_major (void);
303int ev_version_minor (void); 399int ev_version_minor (void);
304 400
305unsigned int ev_supported_backends (void); 401unsigned int ev_supported_backends (void);
306unsigned int ev_recommended_backends (void); 402unsigned int ev_recommended_backends (void);
307unsigned int ev_embeddable_backends (void); 403unsigned int ev_embeddable_backends (void);
308 404
309ev_tstamp ev_time (void); 405ev_tstamp ev_time (void);
406void ev_sleep (ev_tstamp delay); /* sleep for a while */
310 407
311/* Sets the allocation function to use, works like realloc. 408/* Sets the allocation function to use, works like realloc.
312 * It is used to allocate and free memory. 409 * It is used to allocate and free memory.
313 * If it returns zero when memory needs to be allocated, the library might abort 410 * If it returns zero when memory needs to be allocated, the library might abort
314 * or take some potentially destructive action. 411 * or take some potentially destructive action.
… …
321 * (such as failed select, poll, epoll_wait) 418 * (such as failed select, poll, epoll_wait)
322 */ 419 */
323void ev_set_syserr_cb (void (*cb)(const char *msg)); 420void ev_set_syserr_cb (void (*cb)(const char *msg));
324 421
325# if EV_MULTIPLICITY 422# if EV_MULTIPLICITY
423EV_INLINE struct ev_loop *
424ev_default_loop_uc (void)
425{
426 extern struct ev_loop *ev_default_loop_ptr;
427
428 return ev_default_loop_ptr;
429}
430
326/* the default loop is the only one that handles signals and child watchers */ 431/* the default loop is the only one that handles signals and child watchers */
327/* you can call this as often as you like */ 432/* you can call this as often as you like */
328static struct ev_loop * 433EV_INLINE struct ev_loop *
329ev_default_loop (unsigned int flags) 434ev_default_loop (unsigned int flags)
330{ 435{
331 extern struct ev_loop *ev_default_loop_ptr; 436 struct ev_loop *loop = ev_default_loop_uc ();
437
438 if (!loop)
439 {
332 extern struct ev_loop *ev_default_loop_init (unsigned int flags); 440 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
333 441
334 if (!ev_default_loop_ptr)
335 ev_default_loop_init (flags); 442 loop = ev_default_loop_init (flags);
443 }
336 444
337 return ev_default_loop_ptr; 445 return loop;
338} 446}
339 447
340/* create and destroy alternative loops that don't handle signals */ 448/* create and destroy alternative loops that don't handle signals */
341struct ev_loop *ev_loop_new (unsigned int flags); 449struct ev_loop *ev_loop_new (unsigned int flags);
342void ev_loop_destroy (EV_P); 450void ev_loop_destroy (EV_P);
… …
346 454
347# else 455# else
348 456
349int ev_default_loop (unsigned int flags); /* returns true when successful */ 457int ev_default_loop (unsigned int flags); /* returns true when successful */
350 458
351static ev_tstamp 459EV_INLINE ev_tstamp
352ev_now (void) 460ev_now (void)
353{ 461{
354 extern ev_tstamp ev_rt_now; 462 extern ev_tstamp ev_rt_now;
355 463
356 return ev_rt_now; 464 return ev_rt_now;
357} 465}
358# endif 466# endif
467
468EV_INLINE int
469ev_is_default_loop (EV_P)
470{
471#if EV_MULTIPLICITY
472 extern struct ev_loop *ev_default_loop_ptr;
473
474 return !!(EV_A == ev_default_loop_ptr);
475#else
476 return 1;
477#endif
478}
359 479
360void ev_default_destroy (void); /* destroy the default loop */ 480void ev_default_destroy (void); /* destroy the default loop */
361/* this needs to be called after fork, to duplicate the default loop */ 481/* this needs to be called after fork, to duplicate the default loop */
362/* if you create alternative loops you have to call ev_loop_fork on them */ 482/* if you create alternative loops you have to call ev_loop_fork on them */
363/* you can call it in either the parent or the child */ 483/* you can call it in either the parent or the child */
364/* you can actually call it at any time, anywhere :) */ 484/* you can actually call it at any time, anywhere :) */
365void ev_default_fork (void); 485void ev_default_fork (void);
366 486
367unsigned int ev_backend (EV_P); 487unsigned int ev_backend (EV_P); /* backend in use by loop */
488unsigned int ev_loop_count (EV_P); /* number of loop iterations */
368#endif 489#endif
369 490
370#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 491#define EVLOOP_NONBLOCK 1 /* do not block/wait */
371#define EVLOOP_ONESHOT 2 /* block *once* only */ 492#define EVLOOP_ONESHOT 2 /* block *once* only */
372#define EVUNLOOP_CANCEL 0 /* undo unloop */ 493#define EVUNLOOP_CANCEL 0 /* undo unloop */
… …
374#define EVUNLOOP_ALL 2 /* unloop all loops */ 495#define EVUNLOOP_ALL 2 /* unloop all loops */
375 496
376#if EV_PROTOTYPES 497#if EV_PROTOTYPES
377void ev_loop (EV_P_ int flags); 498void ev_loop (EV_P_ int flags);
378void 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 */ 499void 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 */
500
501void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
502void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
379 503
380/* 504/*
381 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 505 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
382 * keeps one reference. if you have a long-runing watcher you never unregister that 506 * keeps one reference. if you have a long-runing watcher you never unregister that
383 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 507 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
… …
390void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 514void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
391#endif 515#endif
392 516
393/* these may evaluate ev multiple times, and the other arguments at most once */ 517/* these may evaluate ev multiple times, and the other arguments at most once */
394/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 518/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
395#define ev_init(ev,cb_) do { \ 519#define ev_init(ev,cb_) do { \
396 ((ev_watcher *)(void *)(ev))->active = \ 520 ((ev_watcher *)(void *)(ev))->active = \
397 ((ev_watcher *)(void *)(ev))->pending = \ 521 ((ev_watcher *)(void *)(ev))->pending = \
398 ((ev_watcher *)(void *)(ev))->priority = 0; \ 522 ((ev_watcher *)(void *)(ev))->priority = 0; \
399 ev_set_cb ((ev), cb_); \ 523 ev_set_cb ((ev), cb_); \
400} while (0) 524} while (0)
401 525
402#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 526#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0)
403#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 527#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
404#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 528#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
405#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 529#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
406#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 530#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
407#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) 531#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
408#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 532#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
409#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 533#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
410#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 534#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
411#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) 535#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
536#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
537#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
412 538
413#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 539#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
414#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 540#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
415#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 541#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
416#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 542#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
417#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 543#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
418#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) 544#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
419#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 545#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
420#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 546#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
421#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 547#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
422#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) 548#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
549#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
550#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
423 551
424#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 552#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
425#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 553#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
426 554
427#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ 555#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
428#define ev_cb(ev) (ev)->cb /* rw */ 556#define ev_cb(ev) (ev)->cb /* rw */
429#define ev_set_priority(ev,pri) ev_priority (ev) = (pri) 557#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
558
559#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
430 560
431#ifndef ev_set_cb 561#ifndef ev_set_cb
432# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 562# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
433#endif 563#endif
434 564
… …
439/* feeds an event into a watcher as if the event actually occured */ 569/* feeds an event into a watcher as if the event actually occured */
440/* accepts any ev_watcher type */ 570/* accepts any ev_watcher type */
441void ev_feed_event (EV_P_ void *w, int revents); 571void ev_feed_event (EV_P_ void *w, int revents);
442void ev_feed_fd_event (EV_P_ int fd, int revents); 572void ev_feed_fd_event (EV_P_ int fd, int revents);
443void ev_feed_signal_event (EV_P_ int signum); 573void ev_feed_signal_event (EV_P_ int signum);
574void ev_invoke (EV_P_ void *w, int revents);
575int ev_clear_pending (EV_P_ void *w);
444 576
445void ev_io_start (EV_P_ ev_io *w); 577void ev_io_start (EV_P_ ev_io *w);
446void ev_io_stop (EV_P_ ev_io *w); 578void ev_io_stop (EV_P_ ev_io *w);
447 579
448void ev_timer_start (EV_P_ ev_timer *w); 580void ev_timer_start (EV_P_ ev_timer *w);
… …
468void ev_stat_start (EV_P_ ev_stat *w); 600void ev_stat_start (EV_P_ ev_stat *w);
469void ev_stat_stop (EV_P_ ev_stat *w); 601void ev_stat_stop (EV_P_ ev_stat *w);
470void ev_stat_stat (EV_P_ ev_stat *w); 602void ev_stat_stat (EV_P_ ev_stat *w);
471# endif 603# endif
472 604
605# if EV_IDLE_ENABLE
473void ev_idle_start (EV_P_ ev_idle *w); 606void ev_idle_start (EV_P_ ev_idle *w);
474void ev_idle_stop (EV_P_ ev_idle *w); 607void ev_idle_stop (EV_P_ ev_idle *w);
608# endif
475 609
476void ev_prepare_start (EV_P_ ev_prepare *w); 610void ev_prepare_start (EV_P_ ev_prepare *w);
477void ev_prepare_stop (EV_P_ ev_prepare *w); 611void ev_prepare_stop (EV_P_ ev_prepare *w);
478 612
479void ev_check_start (EV_P_ ev_check *w); 613void ev_check_start (EV_P_ ev_check *w);
480void ev_check_stop (EV_P_ ev_check *w); 614void ev_check_stop (EV_P_ ev_check *w);
615
616# if EV_FORK_ENABLE
617void ev_fork_start (EV_P_ ev_fork *w);
618void ev_fork_stop (EV_P_ ev_fork *w);
619# endif
481 620
482# if EV_EMBED_ENABLE 621# if EV_EMBED_ENABLE
483/* only supported when loop to be embedded is in fact embeddable */ 622/* only supported when loop to be embedded is in fact embeddable */
484void ev_embed_start (EV_P_ ev_embed *w); 623void ev_embed_start (EV_P_ ev_embed *w);
485void ev_embed_stop (EV_P_ ev_embed *w); 624void ev_embed_stop (EV_P_ ev_embed *w);
486void ev_embed_sweep (EV_P_ ev_embed *w); 625void ev_embed_sweep (EV_P_ ev_embed *w);
487# endif 626# endif
488 627
628# if EV_ASYNC_ENABLE
629void ev_async_start (EV_P_ ev_async *w);
630void ev_async_stop (EV_P_ ev_async *w);
631void ev_async_send (EV_P_ ev_async *w);
632# endif
633
489#endif 634#endif
490 635
491#ifdef __cplusplus 636#ifdef __cplusplus
492} 637}
493#endif 638#endif

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