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Comparing libev/ev.h (file contents):
Revision 1.139 by root, Tue Mar 16 20:49:47 2010 UTC vs.
Revision 1.177 by root, Tue Sep 9 13:34:46 2014 UTC

1/* 1/*
2 * libev native API header 2 * libev native API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 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- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 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- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
39 39
40#ifndef EV_H_ 40#ifndef EV_H_
41#define EV_H_ 41#define EV_H_
42 42
43#ifdef __cplusplus 43#ifdef __cplusplus
44# define EV_CPP(x) x
45#else
46# define EV_CPP(x)
47#endif
48
49#define EV_THROW EV_CPP(throw())
50
51/* apple's proprietary clang fork errors out with exception specifications */
52/* in all sorts of places, so let's not even bother with them */
53/* users are strongly advised to install clang or gcc */
54#if __APPLE__ && __clang__
55# undef EV_THROW
56# define EV_THROW
57#endif
58
44extern "C" { 59EV_CPP(extern "C" {)
45#endif
46 60
47/*****************************************************************************/ 61/*****************************************************************************/
48 62
63/* pre-4.0 compatibility */
64#ifndef EV_COMPAT3
65# define EV_COMPAT3 1
66#endif
67
49#ifndef EV_FEATURES 68#ifndef EV_FEATURES
69# if defined __OPTIMIZE_SIZE__
70# define EV_FEATURES 0x7c
71# else
50# define EV_FEATURES 0x7f 72# define EV_FEATURES 0x7f
73# endif
51#endif 74#endif
52 75
53#define EV_FEATURE_CODE ((EV_FEATURES) & 1) 76#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
54#define EV_FEATURE_DATA ((EV_FEATURES) & 2) 77#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
55#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) 78#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
… …
92 115
93#ifndef EV_FORK_ENABLE 116#ifndef EV_FORK_ENABLE
94# define EV_FORK_ENABLE EV_FEATURE_WATCHERS 117# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
95#endif 118#endif
96 119
120#ifndef EV_CLEANUP_ENABLE
121# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
122#endif
123
97#ifndef EV_SIGNAL_ENABLE 124#ifndef EV_SIGNAL_ENABLE
98# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS 125# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
99#endif 126#endif
100 127
101#ifndef EV_CHILD_ENABLE 128#ifndef EV_CHILD_ENABLE
… …
143#endif 170#endif
144 171
145/* support multiple event loops? */ 172/* support multiple event loops? */
146#if EV_MULTIPLICITY 173#if EV_MULTIPLICITY
147struct ev_loop; 174struct ev_loop;
148# define EV_P struct ev_loop *loop 175# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
149# define EV_P_ EV_P, 176# define EV_P_ EV_P, /* a loop as first of multiple parameters */
150# define EV_A loop 177# define EV_A loop /* a loop as sole argument to a function call */
151# define EV_A_ EV_A, 178# define EV_A_ EV_A, /* a loop as first of multiple arguments */
152# define EV_DEFAULT_UC ev_default_loop_uc () 179# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
153# define EV_DEFAULT_UC_ EV_DEFAULT_UC, 180# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
154# define EV_DEFAULT ev_default_loop (0) 181# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
155# define EV_DEFAULT_ EV_DEFAULT, 182# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
156#else 183#else
157# define EV_P void 184# define EV_P void
158# define EV_P_ 185# define EV_P_
159# define EV_A 186# define EV_A
160# define EV_A_ 187# define EV_A_
… …
163# define EV_DEFAULT_UC 190# define EV_DEFAULT_UC
164# define EV_DEFAULT_UC_ 191# define EV_DEFAULT_UC_
165# undef EV_EMBED_ENABLE 192# undef EV_EMBED_ENABLE
166#endif 193#endif
167 194
195/* EV_INLINE is used for functions in header files */
168#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 196#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
169# define EV_INLINE static inline 197# define EV_INLINE static inline
170#else 198#else
171# define EV_INLINE static 199# define EV_INLINE static
172#endif 200#endif
173 201
202#ifdef EV_API_STATIC
203# define EV_API_DECL static
204#else
205# define EV_API_DECL extern
206#endif
207
208/* EV_PROTOTYPES can be used to switch of prototype declarations */
174#ifndef EV_PROTOTYPES 209#ifndef EV_PROTOTYPES
175# define EV_PROTOTYPES 1 210# define EV_PROTOTYPES 1
176#endif 211#endif
177 212
178/*****************************************************************************/ 213/*****************************************************************************/
179 214
180#define EV_VERSION_MAJOR 4 215#define EV_VERSION_MAJOR 4
181#define EV_VERSION_MINOR 0 216#define EV_VERSION_MINOR 18
182 217
183/* eventmask, revents, events... */ 218/* eventmask, revents, events... */
184#define EV_UNDEF -1 /* guaranteed to be invalid */ 219enum {
220 EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
185#define EV_NONE 0x00 /* no events */ 221 EV_NONE = 0x00, /* no events */
186#define EV_READ 0x01 /* ev_io detected read will not block */ 222 EV_READ = 0x01, /* ev_io detected read will not block */
187#define EV_WRITE 0x02 /* ev_io detected write will not block */ 223 EV_WRITE = 0x02, /* ev_io detected write will not block */
188#define EV__IOFDSET 0x80 /* internal use only */ 224 EV__IOFDSET = 0x80, /* internal use only */
189#define EV_IO EV_READ /* alias for type-detection */ 225 EV_IO = EV_READ, /* alias for type-detection */
190#define EV_TIMER 0x00000100 /* timer timed out */ 226 EV_TIMER = 0x00000100, /* timer timed out */
227#if EV_COMPAT3
191#define EV_TIMEOUT EV_TIMER /* pre 4.0 API compatibility */ 228 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
229#endif
192#define EV_PERIODIC 0x00000200 /* periodic timer timed out */ 230 EV_PERIODIC = 0x00000200, /* periodic timer timed out */
193#define EV_SIGNAL 0x00000400 /* signal was received */ 231 EV_SIGNAL = 0x00000400, /* signal was received */
194#define EV_CHILD 0x00000800 /* child/pid had status change */ 232 EV_CHILD = 0x00000800, /* child/pid had status change */
195#define EV_STAT 0x00001000 /* stat data changed */ 233 EV_STAT = 0x00001000, /* stat data changed */
196#define EV_IDLE 0x00002000 /* event loop is idling */ 234 EV_IDLE = 0x00002000, /* event loop is idling */
197#define EV_PREPARE 0x00004000 /* event loop about to poll */ 235 EV_PREPARE = 0x00004000, /* event loop about to poll */
198#define EV_CHECK 0x00008000 /* event loop finished poll */ 236 EV_CHECK = 0x00008000, /* event loop finished poll */
199#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 237 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
200#define EV_FORK 0x00020000 /* event loop resumed in child */ 238 EV_FORK = 0x00020000, /* event loop resumed in child */
239 EV_CLEANUP = 0x00040000, /* event loop resumed in child */
201#define EV_ASYNC 0x00040000 /* async intra-loop signal */ 240 EV_ASYNC = 0x00080000, /* async intra-loop signal */
202#define EV_CUSTOM 0x01000000 /* for use by user code */ 241 EV_CUSTOM = 0x01000000, /* for use by user code */
203#define EV_ERROR 0x80000000 /* sent when an error occurs */ 242 EV_ERROR = (int)0x80000000 /* sent when an error occurs */
243};
204 244
205/* can be used to add custom fields to all watchers, while losing binary compatibility */ 245/* can be used to add custom fields to all watchers, while losing binary compatibility */
206#ifndef EV_COMMON 246#ifndef EV_COMMON
207# define EV_COMMON void *data; 247# define EV_COMMON void *data;
208#endif 248#endif
… …
299{ 339{
300 EV_WATCHER_TIME (ev_periodic) 340 EV_WATCHER_TIME (ev_periodic)
301 341
302 ev_tstamp offset; /* rw */ 342 ev_tstamp offset; /* rw */
303 ev_tstamp interval; /* rw */ 343 ev_tstamp interval; /* rw */
304 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 344 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_THROW; /* rw */
305} ev_periodic; 345} ev_periodic;
306 346
307/* invoked when the given signal has been received */ 347/* invoked when the given signal has been received */
308/* revent EV_SIGNAL */ 348/* revent EV_SIGNAL */
309typedef struct ev_signal 349typedef struct ev_signal
… …
374 EV_WATCHER (ev_check) 414 EV_WATCHER (ev_check)
375} ev_check; 415} ev_check;
376 416
377#if EV_FORK_ENABLE 417#if EV_FORK_ENABLE
378/* the callback gets invoked before check in the child process when a fork was detected */ 418/* the callback gets invoked before check in the child process when a fork was detected */
419/* revent EV_FORK */
379typedef struct ev_fork 420typedef struct ev_fork
380{ 421{
381 EV_WATCHER (ev_fork) 422 EV_WATCHER (ev_fork)
382} ev_fork; 423} ev_fork;
424#endif
425
426#if EV_CLEANUP_ENABLE
427/* is invoked just before the loop gets destroyed */
428/* revent EV_CLEANUP */
429typedef struct ev_cleanup
430{
431 EV_WATCHER (ev_cleanup)
432} ev_cleanup;
383#endif 433#endif
384 434
385#if EV_EMBED_ENABLE 435#if EV_EMBED_ENABLE
386/* used to embed an event loop inside another */ 436/* used to embed an event loop inside another */
387/* the callback gets invoked when the event loop has handled events, and can be 0 */ 437/* the callback gets invoked when the event loop has handled events, and can be 0 */
… …
395 ev_check check; /* unused */ 445 ev_check check; /* unused */
396 ev_timer timer; /* unused */ 446 ev_timer timer; /* unused */
397 ev_periodic periodic; /* unused */ 447 ev_periodic periodic; /* unused */
398 ev_idle idle; /* unused */ 448 ev_idle idle; /* unused */
399 ev_fork fork; /* private */ 449 ev_fork fork; /* private */
450#if EV_CLEANUP_ENABLE
451 ev_cleanup cleanup; /* unused */
452#endif
400} ev_embed; 453} ev_embed;
401#endif 454#endif
402 455
403#if EV_ASYNC_ENABLE 456#if EV_ASYNC_ENABLE
404/* invoked when somebody calls ev_async_send on the watcher */ 457/* invoked when somebody calls ev_async_send on the watcher */
… …
433 struct ev_prepare prepare; 486 struct ev_prepare prepare;
434 struct ev_check check; 487 struct ev_check check;
435#if EV_FORK_ENABLE 488#if EV_FORK_ENABLE
436 struct ev_fork fork; 489 struct ev_fork fork;
437#endif 490#endif
491#if EV_CLEANUP_ENABLE
492 struct ev_cleanup cleanup;
493#endif
438#if EV_EMBED_ENABLE 494#if EV_EMBED_ENABLE
439 struct ev_embed embed; 495 struct ev_embed embed;
440#endif 496#endif
441#if EV_ASYNC_ENABLE 497#if EV_ASYNC_ENABLE
442 struct ev_async async; 498 struct ev_async async;
443#endif 499#endif
444}; 500};
445 501
446/* bits for ev_default_loop and ev_loop_new */ 502/* flag bits for ev_default_loop and ev_loop_new */
503enum {
447/* the default */ 504 /* the default */
448#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ 505 EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
449/* flag bits */ 506 /* flag bits */
450#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ 507 EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
451#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ 508 EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
452/* debugging/feature disable */ 509 /* debugging/feature disable */
453#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ 510 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
511#if EV_COMPAT3
454#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ 512 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
513#endif
455#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ 514 EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
515 EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
516};
517
456/* method bits to be ored together */ 518/* method bits to be ored together */
519enum {
457#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ 520 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
458#define EVBACKEND_POLL 0x00000002U /* !win */ 521 EVBACKEND_POLL = 0x00000002U, /* !win */
459#define EVBACKEND_EPOLL 0x00000004U /* linux */ 522 EVBACKEND_EPOLL = 0x00000004U, /* linux */
460#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ 523 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
461#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ 524 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
462#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ 525 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
463#define EVBACKEND_ALL 0x0000003FU 526 EVBACKEND_ALL = 0x0000003FU, /* all known backends */
527 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
528};
464 529
465#if EV_PROTOTYPES 530#if EV_PROTOTYPES
466int ev_version_major (void); 531EV_API_DECL int ev_version_major (void) EV_THROW;
467int ev_version_minor (void); 532EV_API_DECL int ev_version_minor (void) EV_THROW;
468 533
469unsigned int ev_supported_backends (void); 534EV_API_DECL unsigned int ev_supported_backends (void) EV_THROW;
470unsigned int ev_recommended_backends (void); 535EV_API_DECL unsigned int ev_recommended_backends (void) EV_THROW;
471unsigned int ev_embeddable_backends (void); 536EV_API_DECL unsigned int ev_embeddable_backends (void) EV_THROW;
472 537
473ev_tstamp ev_time (void); 538EV_API_DECL ev_tstamp ev_time (void) EV_THROW;
474void ev_sleep (ev_tstamp delay); /* sleep for a while */ 539EV_API_DECL void ev_sleep (ev_tstamp delay) EV_THROW; /* sleep for a while */
475 540
476/* Sets the allocation function to use, works like realloc. 541/* Sets the allocation function to use, works like realloc.
477 * It is used to allocate and free memory. 542 * It is used to allocate and free memory.
478 * If it returns zero when memory needs to be allocated, the library might abort 543 * If it returns zero when memory needs to be allocated, the library might abort
479 * or take some potentially destructive action. 544 * or take some potentially destructive action.
480 * The default is your system realloc function. 545 * The default is your system realloc function.
481 */ 546 */
482void ev_set_allocator (void *(*cb)(void *ptr, long size)); 547EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW;
483 548
484/* set the callback function to call on a 549/* set the callback function to call on a
485 * retryable syscall error 550 * retryable syscall error
486 * (such as failed select, poll, epoll_wait) 551 * (such as failed select, poll, epoll_wait)
487 */ 552 */
488void ev_set_syserr_cb (void (*cb)(const char *msg)); 553EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW;
489 554
490#if EV_MULTIPLICITY 555#if EV_MULTIPLICITY
556
557/* the default loop is the only one that handles signals and child watchers */
558/* you can call this as often as you like */
559EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW;
560
561#ifdef EV_API_STATIC
562EV_API_DECL struct ev_loop *ev_default_loop_ptr;
563#endif
564
491EV_INLINE struct ev_loop * 565EV_INLINE struct ev_loop *
492ev_default_loop_uc (void) 566ev_default_loop_uc_ (void) EV_THROW
493{ 567{
494 extern struct ev_loop *ev_default_loop_ptr; 568 extern struct ev_loop *ev_default_loop_ptr;
495 569
496 return ev_default_loop_ptr; 570 return ev_default_loop_ptr;
497} 571}
498 572
499/* the default loop is the only one that handles signals and child watchers */ 573EV_INLINE int
500/* you can call this as often as you like */ 574ev_is_default_loop (EV_P) EV_THROW
501EV_INLINE struct ev_loop *
502ev_default_loop (unsigned int flags)
503{ 575{
504 struct ev_loop *loop = ev_default_loop_uc (); 576 return EV_A == EV_DEFAULT_UC;
505
506 if (!loop)
507 {
508 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
509
510 loop = ev_default_loop_init (flags);
511 }
512
513 return loop;
514} 577}
515 578
516/* create and destroy alternative loops that don't handle signals */ 579/* create and destroy alternative loops that don't handle signals */
517struct ev_loop *ev_loop_new (unsigned int flags); 580EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_THROW;
518void ev_loop_destroy (EV_P);
519void ev_loop_fork (EV_P);
520 581
521ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 582EV_API_DECL ev_tstamp ev_now (EV_P) EV_THROW; /* time w.r.t. timers and the eventloop, updated after each poll */
522 583
523#else 584#else
524 585
525int ev_default_loop (unsigned int flags); /* returns true when successful */ 586EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; /* returns true when successful */
587
588EV_API_DECL ev_tstamp ev_rt_now;
526 589
527EV_INLINE ev_tstamp 590EV_INLINE ev_tstamp
528ev_now (void) 591ev_now (void) EV_THROW
529{ 592{
530 extern ev_tstamp ev_rt_now;
531
532 return ev_rt_now; 593 return ev_rt_now;
533} 594}
595
596/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
597EV_INLINE int
598ev_is_default_loop (void) EV_THROW
599{
600 return 1;
601}
602
534#endif /* multiplicity */ 603#endif /* multiplicity */
535 604
536EV_INLINE int 605/* destroy event loops, also works for the default loop */
537ev_is_default_loop (EV_P) 606EV_API_DECL void ev_loop_destroy (EV_P);
538{
539#if EV_MULTIPLICITY
540 extern struct ev_loop *ev_default_loop_ptr;
541 607
542 return !!(EV_A == ev_default_loop_ptr);
543#else
544 return 1;
545#endif
546}
547
548void ev_default_destroy (void); /* destroy the default loop */
549/* this needs to be called after fork, to duplicate the default loop */ 608/* this needs to be called after fork, to duplicate the loop */
550/* if you create alternative loops you have to call ev_loop_fork on them */ 609/* when you want to re-use it in the child */
551/* you can call it in either the parent or the child */ 610/* you can call it in either the parent or the child */
552/* you can actually call it at any time, anywhere :) */ 611/* you can actually call it at any time, anywhere :) */
553void ev_default_fork (void); 612EV_API_DECL void ev_loop_fork (EV_P) EV_THROW;
554 613
555unsigned int ev_backend (EV_P); /* backend in use by loop */ 614EV_API_DECL unsigned int ev_backend (EV_P) EV_THROW; /* backend in use by loop */
556 615
557void ev_now_update (EV_P); /* update event loop time */ 616EV_API_DECL void ev_now_update (EV_P) EV_THROW; /* update event loop time */
558 617
559#if EV_WALK_ENABLE 618#if EV_WALK_ENABLE
560/* walk (almost) all watchers in the loop of a given type, invoking the */ 619/* walk (almost) all watchers in the loop of a given type, invoking the */
561/* callback on every such watcher. The callback might stop the watcher, */ 620/* callback on every such watcher. The callback might stop the watcher, */
562/* but do nothing else with the loop */ 621/* but do nothing else with the loop */
563void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 622EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW;
564#endif 623#endif
565 624
566#endif /* prototypes */ 625#endif /* prototypes */
567 626
568#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 627/* ev_run flags values */
569#define EVLOOP_ONESHOT 2 /* block *once* only */ 628enum {
570#define EVUNLOOP_CANCEL 0 /* undo unloop */ 629 EVRUN_NOWAIT = 1, /* do not block/wait */
571#define EVUNLOOP_ONE 1 /* unloop once */ 630 EVRUN_ONCE = 2 /* block *once* only */
631};
632
633/* ev_break how values */
634enum {
635 EVBREAK_CANCEL = 0, /* undo unloop */
636 EVBREAK_ONE = 1, /* unloop once */
572#define EVUNLOOP_ALL 2 /* unloop all loops */ 637 EVBREAK_ALL = 2 /* unloop all loops */
638};
573 639
574#if EV_PROTOTYPES 640#if EV_PROTOTYPES
575void ev_loop (EV_P_ int flags); 641EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
576void 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 */ 642EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_THROW; /* break out of the loop */
577 643
578/* 644/*
579 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 645 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
580 * keeps one reference. if you have a long-running watcher you never unregister that 646 * keeps one reference. if you have a long-running watcher you never unregister that
581 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 647 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
582 */ 648 */
583void ev_ref (EV_P); 649EV_API_DECL void ev_ref (EV_P) EV_THROW;
584void ev_unref (EV_P); 650EV_API_DECL void ev_unref (EV_P) EV_THROW;
585 651
586/* 652/*
587 * convenience function, wait for a single event, without registering an event watcher 653 * convenience function, wait for a single event, without registering an event watcher
588 * if timeout is < 0, do wait indefinitely 654 * if timeout is < 0, do wait indefinitely
589 */ 655 */
590void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 656EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW;
591 657
592# if EV_FEATURE_API 658# if EV_FEATURE_API
593unsigned int ev_iteration (EV_P); /* number of loop iterations */ 659EV_API_DECL unsigned int ev_iteration (EV_P) EV_THROW; /* number of loop iterations */
594unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 660EV_API_DECL unsigned int ev_depth (EV_P) EV_THROW; /* #ev_loop enters - #ev_loop leaves */
595void ev_verify (EV_P); /* abort if loop data corrupted */ 661EV_API_DECL void ev_verify (EV_P) EV_THROW; /* abort if loop data corrupted */
596 662
597/* pre 4.0 API compatibility */
598# if EV_MULTIPLICITY
599# define ev_loop_count(l) ev_iteration (l)
600# define ev_loop_depth(l) ev_depth (l)
601# define ev_loop_verify(l) ev_verify (l)
602# endif
603
604void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 663EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */
605void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 664EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */
606 665
607/* advanced stuff for threading etc. support, see docs */ 666/* advanced stuff for threading etc. support, see docs */
608void ev_set_userdata (EV_P_ void *data); 667EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_THROW;
609void *ev_userdata (EV_P); 668EV_API_DECL void *ev_userdata (EV_P) EV_THROW;
610void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); 669typedef void (*ev_loop_callback)(EV_P);
611void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); 670EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW;
671EV_API_DECL void ev_set_loop_release_cb (EV_P_ ev_loop_callback EV_THROW release, ev_loop_callback EV_THROW acquire) EV_THROW;
612 672
613unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ 673EV_API_DECL unsigned int ev_pending_count (EV_P) EV_THROW; /* number of pending events, if any */
614void ev_invoke_pending (EV_P); /* invoke all pending watchers */ 674EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
615 675
616/* 676/*
617 * stop/start the timer handling. 677 * stop/start the timer handling.
618 */ 678 */
619void ev_suspend (EV_P); 679EV_API_DECL void ev_suspend (EV_P) EV_THROW;
620void ev_resume (EV_P); 680EV_API_DECL void ev_resume (EV_P) EV_THROW;
621#endif 681#endif
622 682
623#endif 683#endif
624 684
625/* these may evaluate ev multiple times, and the other arguments at most once */ 685/* these may evaluate ev multiple times, and the other arguments at most once */
… …
640#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 700#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
641#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 701#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
642#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 702#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
643#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 703#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
644#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 704#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
645#define ev_async_set(ev) do { (ev)->sent = 0; } while (0) 705#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
706#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
646 707
647#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 708#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
648#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 709#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
649#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) 710#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
650#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 711#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
… …
653#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 714#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
654#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 715#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
655#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 716#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
656#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) 717#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
657#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 718#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
719#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
658#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 720#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
659 721
660#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 722#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
661#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 723#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
662 724
… …
675#ifndef ev_set_cb 737#ifndef ev_set_cb
676# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 738# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
677#endif 739#endif
678 740
679/* stopping (enabling, adding) a watcher does nothing if it is already running */ 741/* stopping (enabling, adding) a watcher does nothing if it is already running */
680/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 742/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
681#if EV_PROTOTYPES 743#if EV_PROTOTYPES
682 744
683/* feeds an event into a watcher as if the event actually occured */ 745/* feeds an event into a watcher as if the event actually occurred */
684/* accepts any ev_watcher type */ 746/* accepts any ev_watcher type */
685void ev_feed_event (EV_P_ void *w, int revents); 747EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_THROW;
686void ev_feed_fd_event (EV_P_ int fd, int revents); 748EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW;
687#if EV_SIGNAL_ENABLE 749#if EV_SIGNAL_ENABLE
750EV_API_DECL void ev_feed_signal (int signum) EV_THROW;
688void ev_feed_signal_event (EV_P_ int signum); 751EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_THROW;
689#endif 752#endif
690void ev_invoke (EV_P_ void *w, int revents); 753EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
691int ev_clear_pending (EV_P_ void *w); 754EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_THROW;
692 755
693void ev_io_start (EV_P_ ev_io *w); 756EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_THROW;
694void ev_io_stop (EV_P_ ev_io *w); 757EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_THROW;
695 758
696void ev_timer_start (EV_P_ ev_timer *w); 759EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_THROW;
697void ev_timer_stop (EV_P_ ev_timer *w); 760EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_THROW;
698/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 761/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
699void ev_timer_again (EV_P_ ev_timer *w); 762EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_THROW;
700/* return remaining time */ 763/* return remaining time */
701ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); 764EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW;
702 765
703#if EV_PERIODIC_ENABLE 766#if EV_PERIODIC_ENABLE
704void ev_periodic_start (EV_P_ ev_periodic *w); 767EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW;
705void ev_periodic_stop (EV_P_ ev_periodic *w); 768EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW;
706void ev_periodic_again (EV_P_ ev_periodic *w); 769EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW;
707#endif 770#endif
708 771
709/* only supported in the default loop */ 772/* only supported in the default loop */
710#if EV_SIGNAL_ENABLE 773#if EV_SIGNAL_ENABLE
711void ev_signal_start (EV_P_ ev_signal *w); 774EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_THROW;
712void ev_signal_stop (EV_P_ ev_signal *w); 775EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_THROW;
713#endif 776#endif
714 777
715/* only supported in the default loop */ 778/* only supported in the default loop */
716# if EV_CHILD_ENABLE 779# if EV_CHILD_ENABLE
717void ev_child_start (EV_P_ ev_child *w); 780EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_THROW;
718void ev_child_stop (EV_P_ ev_child *w); 781EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_THROW;
719# endif 782# endif
720 783
721# if EV_STAT_ENABLE 784# if EV_STAT_ENABLE
722void ev_stat_start (EV_P_ ev_stat *w); 785EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_THROW;
723void ev_stat_stop (EV_P_ ev_stat *w); 786EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_THROW;
724void ev_stat_stat (EV_P_ ev_stat *w); 787EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_THROW;
725# endif 788# endif
726 789
727# if EV_IDLE_ENABLE 790# if EV_IDLE_ENABLE
728void ev_idle_start (EV_P_ ev_idle *w); 791EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_THROW;
729void ev_idle_stop (EV_P_ ev_idle *w); 792EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_THROW;
730# endif 793# endif
731 794
732#if EV_PREPARE_ENABLE 795#if EV_PREPARE_ENABLE
733void ev_prepare_start (EV_P_ ev_prepare *w); 796EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW;
734void ev_prepare_stop (EV_P_ ev_prepare *w); 797EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW;
735#endif 798#endif
736 799
737#if EV_CHECK_ENABLE 800#if EV_CHECK_ENABLE
738void ev_check_start (EV_P_ ev_check *w); 801EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_THROW;
739void ev_check_stop (EV_P_ ev_check *w); 802EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_THROW;
740#endif 803#endif
741 804
742# if EV_FORK_ENABLE 805# if EV_FORK_ENABLE
743void ev_fork_start (EV_P_ ev_fork *w); 806EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_THROW;
744void ev_fork_stop (EV_P_ ev_fork *w); 807EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_THROW;
808# endif
809
810# if EV_CLEANUP_ENABLE
811EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW;
812EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW;
745# endif 813# endif
746 814
747# if EV_EMBED_ENABLE 815# if EV_EMBED_ENABLE
748/* only supported when loop to be embedded is in fact embeddable */ 816/* only supported when loop to be embedded is in fact embeddable */
749void ev_embed_start (EV_P_ ev_embed *w); 817EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_THROW;
750void ev_embed_stop (EV_P_ ev_embed *w); 818EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_THROW;
751void ev_embed_sweep (EV_P_ ev_embed *w); 819EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW;
752# endif 820# endif
753 821
754# if EV_ASYNC_ENABLE 822# if EV_ASYNC_ENABLE
755void ev_async_start (EV_P_ ev_async *w); 823EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_THROW;
756void ev_async_stop (EV_P_ ev_async *w); 824EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_THROW;
757void ev_async_send (EV_P_ ev_async *w); 825EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_THROW;
758# endif
759
760#endif 826# endif
761 827
762#ifdef __cplusplus 828#if EV_COMPAT3
763} 829 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
830 #define EVLOOP_ONESHOT EVRUN_ONCE
831 #define EVUNLOOP_CANCEL EVBREAK_CANCEL
832 #define EVUNLOOP_ONE EVBREAK_ONE
833 #define EVUNLOOP_ALL EVBREAK_ALL
834 #if EV_PROTOTYPES
835 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
836 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
837 EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
838 EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
839 #if EV_FEATURE_API
840 EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
841 EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
842 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
843 #endif
764#endif 844 #endif
765 845#else
846 typedef struct ev_loop ev_loop;
766#endif 847#endif
767 848
849#endif
850
851EV_CPP(})
852
853#endif
854

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