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Comparing libev/ev.h (file contents):
Revision 1.84 by root, Wed Dec 12 05:11:56 2007 UTC vs.
Revision 1.118 by root, Thu Jul 9 09:11:20 2009 UTC

1/* 1/*
2 * libev native API header
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 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
… …
66 76
67#ifndef EV_EMBED_ENABLE 77#ifndef EV_EMBED_ENABLE
68# define EV_EMBED_ENABLE 1 78# define EV_EMBED_ENABLE 1
69#endif 79#endif
70 80
81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1
83#endif
84
85#ifndef EV_WALK_ENABLE
86# define EV_WALK_ENABLE 0 /* not yet */
87#endif
88
89#ifndef EV_ATOMIC_T
90# include <signal.h>
91# define EV_ATOMIC_T sig_atomic_t volatile
92#endif
93
71/*****************************************************************************/ 94/*****************************************************************************/
72 95
73#if EV_STAT_ENABLE 96#if EV_STAT_ENABLE
97# ifdef _WIN32
98# include <time.h>
99# include <sys/types.h>
100# endif
74# include <sys/stat.h> 101# include <sys/stat.h>
75#endif 102#endif
76 103
77/* support multiple event loops? */ 104/* support multiple event loops? */
78#if EV_MULTIPLICITY 105#if EV_MULTIPLICITY
79struct ev_loop; 106struct ev_loop;
80# define EV_P struct ev_loop *loop 107# define EV_P struct ev_loop *loop
81# define EV_P_ EV_P, 108# define EV_P_ EV_P,
82# define EV_A loop 109# define EV_A loop
83# define EV_A_ EV_A, 110# define EV_A_ EV_A,
111# define EV_DEFAULT_UC ev_default_loop_uc ()
112# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
84# define EV_DEFAULT ev_default_loop (0) 113# define EV_DEFAULT ev_default_loop (0)
85# define EV_DEFAULT_ EV_DEFAULT, 114# define EV_DEFAULT_ EV_DEFAULT,
86#else 115#else
87# define EV_P void 116# define EV_P void
88# define EV_P_ 117# define EV_P_
89# define EV_A 118# define EV_A
90# define EV_A_ 119# define EV_A_
91# define EV_DEFAULT 120# define EV_DEFAULT
92# define EV_DEFAULT_ 121# define EV_DEFAULT_
93 122# define EV_DEFAULT_UC
123# define EV_DEFAULT_UC_
94# undef EV_EMBED_ENABLE 124# undef EV_EMBED_ENABLE
95#endif 125#endif
96 126
127#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
128# define EV_INLINE static inline
129#else
130# define EV_INLINE static
131#endif
132
133/*****************************************************************************/
134
97/* eventmask, revents, events... */ 135/* eventmask, revents, events... */
98#define EV_UNDEF -1L /* guaranteed to be invalid */ 136#define EV_UNDEF -1 /* guaranteed to be invalid */
99#define EV_NONE 0x00L /* no events */ 137#define EV_NONE 0x00 /* no events */
100#define EV_READ 0x01L /* ev_io detected read will not block */ 138#define EV_READ 0x01 /* ev_io detected read will not block */
101#define EV_WRITE 0x02L /* ev_io detected write will not block */ 139#define EV_WRITE 0x02 /* ev_io detected write will not block */
102#define EV_IOFDSET 0x80L /* internal use only */ 140#define EV__IOFDSET 0x80 /* internal use only */
141#define EV_IO EV_READ /* alias for type-detection */
103#define EV_TIMEOUT 0x00000100L /* timer timed out */ 142#define EV_TIMEOUT 0x00000100 /* timer timed out */
143#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
104#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ 144#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
105#define EV_SIGNAL 0x00000400L /* signal was received */ 145#define EV_SIGNAL 0x00000400 /* signal was received */
106#define EV_CHILD 0x00000800L /* child/pid had status change */ 146#define EV_CHILD 0x00000800 /* child/pid had status change */
107#define EV_STAT 0x00001000L /* stat data changed */ 147#define EV_STAT 0x00001000 /* stat data changed */
108#define EV_IDLE 0x00002000L /* event loop is idling */ 148#define EV_IDLE 0x00002000 /* event loop is idling */
109#define EV_PREPARE 0x00004000L /* event loop about to poll */ 149#define EV_PREPARE 0x00004000 /* event loop about to poll */
110#define EV_CHECK 0x00008000L /* event loop finished poll */ 150#define EV_CHECK 0x00008000 /* event loop finished poll */
111#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ 151#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
112#define EV_FORK 0x00020000L /* event loop resumed in child */ 152#define EV_FORK 0x00020000 /* event loop resumed in child */
153#define EV_ASYNC 0x00040000 /* async intra-loop signal */
154#define EV_CUSTOM 0x01000000 /* for use by user code */
113#define EV_ERROR 0x80000000L /* sent when an error occurs */ 155#define EV_ERROR 0x80000000 /* sent when an error occurs */
114 156
115/* can be used to add custom fields to all watchers, while losing binary compatibility */ 157/* can be used to add custom fields to all watchers, while losing binary compatibility */
116#ifndef EV_COMMON 158#ifndef EV_COMMON
117# define EV_COMMON void *data; 159# define EV_COMMON void *data;
118#endif 160#endif
119#ifndef EV_PROTOTYPES 161#ifndef EV_PROTOTYPES
120# define EV_PROTOTYPES 1 162# define EV_PROTOTYPES 1
121#endif 163#endif
122 164
123#define EV_VERSION_MAJOR 2 165#define EV_VERSION_MAJOR 3
124#define EV_VERSION_MINOR 0 166#define EV_VERSION_MINOR 0
125 167
126#ifndef EV_CB_DECLARE 168#ifndef EV_CB_DECLARE
127# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 169# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
128#endif 170#endif
… …
130# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) 172# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
131#endif 173#endif
132 174
133/* 175/*
134 * struct member types: 176 * struct member types:
135 * private: you can look at them, but not change them, and they might not mean anything to you. 177 * private: you may look at them, but not change them,
178 * and they might not mean anything to you.
136 * ro: can be read anytime, but only changed when the watcher isn't active 179 * ro: can be read anytime, but only changed when the watcher isn't active.
137 * rw: can be read and modified anytime, even when the watcher is active 180 * rw: can be read and modified anytime, even when the watcher is active.
181 *
182 * some internal details that might be helpful for debugging:
183 *
184 * active is either 0, which means the watcher is not active,
185 * or the array index of the watcher (periodics, timers)
186 * or the array index + 1 (most other watchers)
187 * or simply 1 for watchers that aren't in some array.
188 * pending is either 0, in which case the watcher isn't,
189 * or the array index + 1 in the pendings array.
138 */ 190 */
191
192#if EV_MINPRI == EV_MAXPRI
193# define EV_DECL_PRIORITY
194#else
195# define EV_DECL_PRIORITY int priority;
196#endif
139 197
140/* shared by all watchers */ 198/* shared by all watchers */
141#define EV_WATCHER(type) \ 199#define EV_WATCHER(type) \
142 int active; /* private */ \ 200 int active; /* private */ \
143 int pending; /* private */ \ 201 int pending; /* private */ \
144 int priority; /* private */ \ 202 EV_DECL_PRIORITY /* private */ \
145 EV_COMMON /* rw */ \ 203 EV_COMMON /* rw */ \
146 EV_CB_DECLARE (type) /* private */ 204 EV_CB_DECLARE (type) /* private */
147 205
148#define EV_WATCHER_LIST(type) \ 206#define EV_WATCHER_LIST(type) \
149 EV_WATCHER (type) \ 207 EV_WATCHER (type) \
… …
215/* does not support priorities */ 273/* does not support priorities */
216typedef struct ev_child 274typedef struct ev_child
217{ 275{
218 EV_WATCHER_LIST (ev_child) 276 EV_WATCHER_LIST (ev_child)
219 277
278 int flags; /* private */
220 int pid; /* ro */ 279 int pid; /* ro */
221 int rpid; /* rw, holds the received pid */ 280 int rpid; /* rw, holds the received pid */
222 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 281 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
223} ev_child; 282} ev_child;
224 283
… …
283/* the callback gets invoked when the event loop has handled events, and can be 0 */ 342/* the callback gets invoked when the event loop has handled events, and can be 0 */
284typedef struct ev_embed 343typedef struct ev_embed
285{ 344{
286 EV_WATCHER (ev_embed) 345 EV_WATCHER (ev_embed)
287 346
288 ev_io io; /* private */
289 struct ev_loop *loop; /* ro */ 347 struct ev_loop *other; /* ro */
348 ev_io io; /* private */
349 ev_prepare prepare; /* private */
350 ev_check check; /* unused */
351 ev_timer timer; /* unused */
352 ev_periodic periodic; /* unused */
353 ev_idle idle; /* unused */
354 ev_fork fork; /* private */
290} ev_embed; 355} ev_embed;
356#endif
357
358#if EV_ASYNC_ENABLE
359/* invoked when somebody calls ev_async_send on the watcher */
360/* revent EV_ASYNC */
361typedef struct ev_async
362{
363 EV_WATCHER (ev_async)
364
365 EV_ATOMIC_T sent; /* private */
366} ev_async;
367
368# define ev_async_pending(w) ((w)->sent + 0)
291#endif 369#endif
292 370
293/* the presence of this union forces similar struct layout */ 371/* the presence of this union forces similar struct layout */
294union ev_any_watcher 372union ev_any_watcher
295{ 373{
… …
313 struct ev_fork fork; 391 struct ev_fork fork;
314#endif 392#endif
315#if EV_EMBED_ENABLE 393#if EV_EMBED_ENABLE
316 struct ev_embed embed; 394 struct ev_embed embed;
317#endif 395#endif
396#if EV_ASYNC_ENABLE
397 struct ev_async async;
398#endif
318}; 399};
319 400
320/* bits for ev_default_loop and ev_loop_new */ 401/* bits for ev_default_loop and ev_loop_new */
321/* the default */ 402/* the default */
322#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ 403#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
323/* flag bits */ 404/* flag bits */
324#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ 405#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
325#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ 406#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
326/* method bits to be ored together */ 407/* method bits to be ored together */
327#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ 408#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
328#define EVBACKEND_POLL 0x00000002UL /* !win */ 409#define EVBACKEND_POLL 0x00000002U /* !win */
329#define EVBACKEND_EPOLL 0x00000004UL /* linux */ 410#define EVBACKEND_EPOLL 0x00000004U /* linux */
330#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ 411#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
331#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ 412#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
332#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ 413#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
333 414
334#if EV_PROTOTYPES 415#if EV_PROTOTYPES
335int ev_version_major (void); 416int ev_version_major (void);
336int ev_version_minor (void); 417int ev_version_minor (void);
337 418
338unsigned int ev_supported_backends (void); 419unsigned int ev_supported_backends (void);
339unsigned int ev_recommended_backends (void); 420unsigned int ev_recommended_backends (void);
340unsigned int ev_embeddable_backends (void); 421unsigned int ev_embeddable_backends (void);
341 422
342ev_tstamp ev_time (void); 423ev_tstamp ev_time (void);
424void ev_sleep (ev_tstamp delay); /* sleep for a while */
343 425
344/* Sets the allocation function to use, works like realloc. 426/* Sets the allocation function to use, works like realloc.
345 * It is used to allocate and free memory. 427 * It is used to allocate and free memory.
346 * If it returns zero when memory needs to be allocated, the library might abort 428 * If it returns zero when memory needs to be allocated, the library might abort
347 * or take some potentially destructive action. 429 * or take some potentially destructive action.
… …
353 * retryable syscall error 435 * retryable syscall error
354 * (such as failed select, poll, epoll_wait) 436 * (such as failed select, poll, epoll_wait)
355 */ 437 */
356void ev_set_syserr_cb (void (*cb)(const char *msg)); 438void ev_set_syserr_cb (void (*cb)(const char *msg));
357 439
358# if EV_MULTIPLICITY 440#if EV_MULTIPLICITY
441EV_INLINE struct ev_loop *
442ev_default_loop_uc (void)
443{
444 extern struct ev_loop *ev_default_loop_ptr;
445
446 return ev_default_loop_ptr;
447}
448
359/* the default loop is the only one that handles signals and child watchers */ 449/* the default loop is the only one that handles signals and child watchers */
360/* you can call this as often as you like */ 450/* you can call this as often as you like */
361static struct ev_loop * 451EV_INLINE struct ev_loop *
362ev_default_loop (unsigned int flags) 452ev_default_loop (unsigned int flags)
363{ 453{
364 extern struct ev_loop *ev_default_loop_ptr; 454 struct ev_loop *loop = ev_default_loop_uc ();
455
456 if (!loop)
457 {
365 extern struct ev_loop *ev_default_loop_init (unsigned int flags); 458 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
366 459
367 if (!ev_default_loop_ptr)
368 ev_default_loop_init (flags); 460 loop = ev_default_loop_init (flags);
461 }
369 462
370 return ev_default_loop_ptr; 463 return loop;
371} 464}
372 465
373/* create and destroy alternative loops that don't handle signals */ 466/* create and destroy alternative loops that don't handle signals */
374struct ev_loop *ev_loop_new (unsigned int flags); 467struct ev_loop *ev_loop_new (unsigned int flags);
375void ev_loop_destroy (EV_P); 468void ev_loop_destroy (EV_P);
376void ev_loop_fork (EV_P); 469void ev_loop_fork (EV_P);
377 470
378ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 471ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
379 472
380# else 473#else
381 474
382int ev_default_loop (unsigned int flags); /* returns true when successful */ 475int ev_default_loop (unsigned int flags); /* returns true when successful */
383 476
384static ev_tstamp 477EV_INLINE ev_tstamp
385ev_now (void) 478ev_now (void)
386{ 479{
387 extern ev_tstamp ev_rt_now; 480 extern ev_tstamp ev_rt_now;
388 481
389 return ev_rt_now; 482 return ev_rt_now;
390} 483}
484#endif /* multiplicity */
485
486EV_INLINE int
487ev_is_default_loop (EV_P)
488{
489#if EV_MULTIPLICITY
490 extern struct ev_loop *ev_default_loop_ptr;
491
492 return !!(EV_A == ev_default_loop_ptr);
493#else
494 return 1;
391# endif 495#endif
496}
392 497
393void ev_default_destroy (void); /* destroy the default loop */ 498void ev_default_destroy (void); /* destroy the default loop */
394/* this needs to be called after fork, to duplicate the default loop */ 499/* this needs to be called after fork, to duplicate the default loop */
395/* if you create alternative loops you have to call ev_loop_fork on them */ 500/* if you create alternative loops you have to call ev_loop_fork on them */
396/* you can call it in either the parent or the child */ 501/* you can call it in either the parent or the child */
397/* you can actually call it at any time, anywhere :) */ 502/* you can actually call it at any time, anywhere :) */
398void ev_default_fork (void); 503void ev_default_fork (void);
399 504
400unsigned int ev_backend (EV_P); 505unsigned int ev_backend (EV_P); /* backend in use by loop */
401unsigned int ev_loop_count (EV_P); 506unsigned int ev_loop_count (EV_P); /* number of loop iterations */
507unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
508void ev_loop_verify (EV_P); /* abort if loop data corrupted */
509
510void ev_now_update (EV_P); /* update event loop time */
511void ev_invoke_pending (EV_P); /* invoke all pending watchers */
512
513#if EV_WALK_ENABLE
514/* walk (almost) all watchers in the loop of a given type, invoking the */
515/* callback on every such watcher. The callback might stop the watcher, */
516/* but do nothing else with the loop */
517void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
402#endif 518#endif
519
520#endif /* prototypes */
403 521
404#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 522#define EVLOOP_NONBLOCK 1 /* do not block/wait */
405#define EVLOOP_ONESHOT 2 /* block *once* only */ 523#define EVLOOP_ONESHOT 2 /* block *once* only */
406#define EVUNLOOP_CANCEL 0 /* undo unloop */ 524#define EVUNLOOP_CANCEL 0 /* undo unloop */
407#define EVUNLOOP_ONE 1 /* unloop once */ 525#define EVUNLOOP_ONE 1 /* unloop once */
408#define EVUNLOOP_ALL 2 /* unloop all loops */ 526#define EVUNLOOP_ALL 2 /* unloop all loops */
409 527
410#if EV_PROTOTYPES 528#if EV_PROTOTYPES
411void ev_loop (EV_P_ int flags); 529void ev_loop (EV_P_ int flags);
412void 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 */ 530void 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 */
531
532void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
533void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
413 534
414/* 535/*
415 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 536 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
416 * keeps one reference. if you have a long-runing watcher you never unregister that 537 * keeps one reference. if you have a long-runing watcher you never unregister that
417 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 538 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
418 */ 539 */
419void ev_ref (EV_P); 540void ev_ref (EV_P);
420void ev_unref (EV_P); 541void ev_unref (EV_P);
421 542
543/*
544 * stop/start the timer handling.
545 */
546void ev_suspend (EV_P);
547void ev_resume (EV_P);
548
549/*
422/* convinience function, wait for a single event, without registering an event watcher */ 550 * convenience function, wait for a single event, without registering an event watcher
423/* if timeout is < 0, do wait indefinitely */ 551 * if timeout is < 0, do wait indefinitely
552 */
424void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 553void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
425#endif 554#endif
426 555
427/* these may evaluate ev multiple times, and the other arguments at most once */ 556/* these may evaluate ev multiple times, and the other arguments at most once */
428/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 557/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
429#define ev_init(ev,cb_) do { \ 558#define ev_init(ev,cb_) do { \
430 ((ev_watcher *)(void *)(ev))->active = \ 559 ((ev_watcher *)(void *)(ev))->active = \
431 ((ev_watcher *)(void *)(ev))->pending = \ 560 ((ev_watcher *)(void *)(ev))->pending = 0; \
432 ((ev_watcher *)(void *)(ev))->priority = 0; \ 561 ev_set_priority ((ev), 0); \
433 ev_set_cb ((ev), cb_); \ 562 ev_set_cb ((ev), cb_); \
434} while (0) 563} while (0)
435 564
436#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) 565#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
437#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 566#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
438#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 567#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
439#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 568#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
440#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 569#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
441#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) 570#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
442#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 571#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
443#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 572#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
444#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 573#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
445#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) 574#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
446#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 575#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
576#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
447 577
448#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 578#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
449#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 579#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
450#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 580#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
451#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 581#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
452#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 582#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
453#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) 583#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
454#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 584#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
455#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 585#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
456#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 586#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
457#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) 587#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
458#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 588#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
589#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
459 590
460#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 591#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
461#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 592#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
462 593
594#define ev_cb(ev) (ev)->cb /* rw */
595
596#if EV_MINPRI == EV_MAXPRI
597# define ev_priority(ev) ((ev), EV_MINPRI)
598# define ev_set_priority(ev,pri) ((ev), (pri))
599#else
463#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) 600# define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
464#define ev_cb(ev) (ev)->cb /* rw */
465#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 601# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
602#endif
603
604#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
466 605
467#ifndef ev_set_cb 606#ifndef ev_set_cb
468# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 607# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
469#endif 608#endif
470 609
471/* stopping (enabling, adding) a watcher does nothing if it is already running */ 610/* stopping (enabling, adding) a watcher does nothing if it is already running */
472/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 611/* stopping (disabling, deleting) a watcher does nothing unless its already running */
473#if EV_PROTOTYPES 612#if EV_PROTOTYPES
… …
529void ev_embed_start (EV_P_ ev_embed *w); 668void ev_embed_start (EV_P_ ev_embed *w);
530void ev_embed_stop (EV_P_ ev_embed *w); 669void ev_embed_stop (EV_P_ ev_embed *w);
531void ev_embed_sweep (EV_P_ ev_embed *w); 670void ev_embed_sweep (EV_P_ ev_embed *w);
532# endif 671# endif
533 672
673# if EV_ASYNC_ENABLE
674void ev_async_start (EV_P_ ev_async *w);
675void ev_async_stop (EV_P_ ev_async *w);
676void ev_async_send (EV_P_ ev_async *w);
677# endif
678
534#endif 679#endif
535 680
536#ifdef __cplusplus 681#ifdef __cplusplus
537} 682}
538#endif 683#endif

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