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Comparing libev/ev.h (file contents):
Revision 1.148 by root, Sun Oct 24 14:44:40 2010 UTC vs.
Revision 1.194 by root, Mon Jul 1 21:47:42 2019 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) 2007-2019 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,
… …
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 44# define EV_CPP(x) x
45# if __cplusplus >= 201103L
46# define EV_NOEXCEPT noexcept
47# else
48# define EV_NOEXCEPT
49# endif
45#else 50#else
46# define EV_CPP(x) 51# define EV_CPP(x)
52# define EV_NOEXCEPT
47#endif 53#endif
54#define EV_THROW EV_NOEXCEPT /* pre-4.25, do not use in new code */
48 55
49EV_CPP(extern "C" {) 56EV_CPP(extern "C" {)
50 57
51/*****************************************************************************/ 58/*****************************************************************************/
52 59
… …
54#ifndef EV_COMPAT3 61#ifndef EV_COMPAT3
55# define EV_COMPAT3 1 62# define EV_COMPAT3 1
56#endif 63#endif
57 64
58#ifndef EV_FEATURES 65#ifndef EV_FEATURES
66# if defined __OPTIMIZE_SIZE__
67# define EV_FEATURES 0x7c
68# else
59# define EV_FEATURES 0x7f 69# define EV_FEATURES 0x7f
70# endif
60#endif 71#endif
61 72
62#define EV_FEATURE_CODE ((EV_FEATURES) & 1) 73#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
63#define EV_FEATURE_DATA ((EV_FEATURES) & 2) 74#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
64#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) 75#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
… …
101 112
102#ifndef EV_FORK_ENABLE 113#ifndef EV_FORK_ENABLE
103# define EV_FORK_ENABLE EV_FEATURE_WATCHERS 114# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
104#endif 115#endif
105 116
117#ifndef EV_CLEANUP_ENABLE
118# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
119#endif
120
106#ifndef EV_SIGNAL_ENABLE 121#ifndef EV_SIGNAL_ENABLE
107# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS 122# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
108#endif 123#endif
109 124
110#ifndef EV_CHILD_ENABLE 125#ifndef EV_CHILD_ENABLE
… …
135#endif 150#endif
136 151
137/*****************************************************************************/ 152/*****************************************************************************/
138 153
139typedef double ev_tstamp; 154typedef double ev_tstamp;
155
156#include <string.h> /* for memmove */
140 157
141#ifndef EV_ATOMIC_T 158#ifndef EV_ATOMIC_T
142# include <signal.h> 159# include <signal.h>
143# define EV_ATOMIC_T sig_atomic_t volatile 160# define EV_ATOMIC_T sig_atomic_t volatile
144#endif 161#endif
… …
156struct ev_loop; 173struct ev_loop;
157# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ 174# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
158# define EV_P_ EV_P, /* a loop as first of multiple parameters */ 175# define EV_P_ EV_P, /* a loop as first of multiple parameters */
159# define EV_A loop /* a loop as sole argument to a function call */ 176# define EV_A loop /* a loop as sole argument to a function call */
160# define EV_A_ EV_A, /* a loop as first of multiple arguments */ 177# define EV_A_ EV_A, /* a loop as first of multiple arguments */
161# define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */ 178# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
162# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ 179# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
163# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ 180# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
164# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ 181# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
165#else 182#else
166# define EV_P void 183# define EV_P void
… …
179# define EV_INLINE static inline 196# define EV_INLINE static inline
180#else 197#else
181# define EV_INLINE static 198# define EV_INLINE static
182#endif 199#endif
183 200
201#ifdef EV_API_STATIC
202# define EV_API_DECL static
203#else
204# define EV_API_DECL extern
205#endif
206
184/* EV_PROTOTYPES can be sued to switch of prototype declarations */ 207/* EV_PROTOTYPES can be used to switch of prototype declarations */
185#ifndef EV_PROTOTYPES 208#ifndef EV_PROTOTYPES
186# define EV_PROTOTYPES 1 209# define EV_PROTOTYPES 1
187#endif 210#endif
188 211
189/*****************************************************************************/ 212/*****************************************************************************/
190 213
191#define EV_VERSION_MAJOR 4 214#define EV_VERSION_MAJOR 4
192#define EV_VERSION_MINOR 0 215#define EV_VERSION_MINOR 27
193 216
194/* eventmask, revents, events... */ 217/* eventmask, revents, events... */
195enum { 218enum {
196 EV_UNDEF = -1, /* guaranteed to be invalid */ 219 EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
197 EV_NONE = 0x00, /* no events */ 220 EV_NONE = 0x00, /* no events */
198 EV_READ = 0x01, /* ev_io detected read will not block */ 221 EV_READ = 0x01, /* ev_io detected read will not block */
199 EV_WRITE = 0x02, /* ev_io detected write will not block */ 222 EV_WRITE = 0x02, /* ev_io detected write will not block */
200 EV__IOFDSET = 0x80, /* internal use only */ 223 EV__IOFDSET = 0x80, /* internal use only */
201 EV_IO = EV_READ, /* alias for type-detection */ 224 EV_IO = EV_READ, /* alias for type-detection */
202 EV_TIMER = 0x00000100, /* timer timed out */ 225 EV_TIMER = 0x00000100, /* timer timed out */
203#if EV_COMPAT3 226#if EV_COMPAT3
204 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ 227 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
205#endif 228#endif
206 EV_PERIODIC = 0x00000200, /* periodic timer timed out */ 229 EV_PERIODIC = 0x00000200, /* periodic timer timed out */
207 EV_SIGNAL = 0x00000400, /* signal was received */ 230 EV_SIGNAL = 0x00000400, /* signal was received */
208 EV_CHILD = 0x00000800, /* child/pid had status change */ 231 EV_CHILD = 0x00000800, /* child/pid had status change */
209 EV_STAT = 0x00001000, /* stat data changed */ 232 EV_STAT = 0x00001000, /* stat data changed */
210 EV_IDLE = 0x00002000, /* event loop is idling */ 233 EV_IDLE = 0x00002000, /* event loop is idling */
211 EV_PREPARE = 0x00004000, /* event loop about to poll */ 234 EV_PREPARE = 0x00004000, /* event loop about to poll */
212 EV_CHECK = 0x00008000, /* event loop finished poll */ 235 EV_CHECK = 0x00008000, /* event loop finished poll */
213 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ 236 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
214 EV_FORK = 0x00020000, /* event loop resumed in child */ 237 EV_FORK = 0x00020000, /* event loop resumed in child */
238 EV_CLEANUP = 0x00040000, /* event loop resumed in child */
215 EV_ASYNC = 0x00040000, /* async intra-loop signal */ 239 EV_ASYNC = 0x00080000, /* async intra-loop signal */
216 EV_CUSTOM = 0x01000000, /* for use by user code */ 240 EV_CUSTOM = 0x01000000, /* for use by user code */
217 EV_ERROR = 0x80000000 /* sent when an error occurs */ 241 EV_ERROR = (int)0x80000000 /* sent when an error occurs */
218}; 242};
219 243
220/* can be used to add custom fields to all watchers, while losing binary compatibility */ 244/* can be used to add custom fields to all watchers, while losing binary compatibility */
221#ifndef EV_COMMON 245#ifndef EV_COMMON
222# define EV_COMMON void *data; 246# define EV_COMMON void *data;
… …
314{ 338{
315 EV_WATCHER_TIME (ev_periodic) 339 EV_WATCHER_TIME (ev_periodic)
316 340
317 ev_tstamp offset; /* rw */ 341 ev_tstamp offset; /* rw */
318 ev_tstamp interval; /* rw */ 342 ev_tstamp interval; /* rw */
319 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 343 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */
320} ev_periodic; 344} ev_periodic;
321 345
322/* invoked when the given signal has been received */ 346/* invoked when the given signal has been received */
323/* revent EV_SIGNAL */ 347/* revent EV_SIGNAL */
324typedef struct ev_signal 348typedef struct ev_signal
… …
389 EV_WATCHER (ev_check) 413 EV_WATCHER (ev_check)
390} ev_check; 414} ev_check;
391 415
392#if EV_FORK_ENABLE 416#if EV_FORK_ENABLE
393/* the callback gets invoked before check in the child process when a fork was detected */ 417/* the callback gets invoked before check in the child process when a fork was detected */
418/* revent EV_FORK */
394typedef struct ev_fork 419typedef struct ev_fork
395{ 420{
396 EV_WATCHER (ev_fork) 421 EV_WATCHER (ev_fork)
397} ev_fork; 422} ev_fork;
423#endif
424
425#if EV_CLEANUP_ENABLE
426/* is invoked just before the loop gets destroyed */
427/* revent EV_CLEANUP */
428typedef struct ev_cleanup
429{
430 EV_WATCHER (ev_cleanup)
431} ev_cleanup;
398#endif 432#endif
399 433
400#if EV_EMBED_ENABLE 434#if EV_EMBED_ENABLE
401/* used to embed an event loop inside another */ 435/* used to embed an event loop inside another */
402/* the callback gets invoked when the event loop has handled events, and can be 0 */ 436/* the callback gets invoked when the event loop has handled events, and can be 0 */
… …
410 ev_check check; /* unused */ 444 ev_check check; /* unused */
411 ev_timer timer; /* unused */ 445 ev_timer timer; /* unused */
412 ev_periodic periodic; /* unused */ 446 ev_periodic periodic; /* unused */
413 ev_idle idle; /* unused */ 447 ev_idle idle; /* unused */
414 ev_fork fork; /* private */ 448 ev_fork fork; /* private */
449#if EV_CLEANUP_ENABLE
450 ev_cleanup cleanup; /* unused */
451#endif
415} ev_embed; 452} ev_embed;
416#endif 453#endif
417 454
418#if EV_ASYNC_ENABLE 455#if EV_ASYNC_ENABLE
419/* invoked when somebody calls ev_async_send on the watcher */ 456/* invoked when somebody calls ev_async_send on the watcher */
… …
447#endif 484#endif
448 struct ev_prepare prepare; 485 struct ev_prepare prepare;
449 struct ev_check check; 486 struct ev_check check;
450#if EV_FORK_ENABLE 487#if EV_FORK_ENABLE
451 struct ev_fork fork; 488 struct ev_fork fork;
489#endif
490#if EV_CLEANUP_ENABLE
491 struct ev_cleanup cleanup;
452#endif 492#endif
453#if EV_EMBED_ENABLE 493#if EV_EMBED_ENABLE
454 struct ev_embed embed; 494 struct ev_embed embed;
455#endif 495#endif
456#if EV_ASYNC_ENABLE 496#if EV_ASYNC_ENABLE
… …
468 /* debugging/feature disable */ 508 /* debugging/feature disable */
469 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ 509 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
470#if EV_COMPAT3 510#if EV_COMPAT3
471 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ 511 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
472#endif 512#endif
473 EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ 513 EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
514 EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
474}; 515};
475 516
476/* method bits to be ored together */ 517/* method bits to be ored together */
477enum { 518enum {
478 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ 519 EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
479 EVBACKEND_POLL = 0x00000002U, /* !win */ 520 EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
480 EVBACKEND_EPOLL = 0x00000004U, /* linux */ 521 EVBACKEND_EPOLL = 0x00000004U, /* linux */
481 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ 522 EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
482 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ 523 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
483 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ 524 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
484 EVBACKEND_ALL = 0x0000003FU 525 EVBACKEND_LINUXAIO = 0x00000040U, /* linuix AIO */
526 EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, TBD */
527 EVBACKEND_ALL = 0x000000FFU, /* all known backends */
528 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
485}; 529};
486 530
487#if EV_PROTOTYPES 531#if EV_PROTOTYPES
488int ev_version_major (void); 532EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
489int ev_version_minor (void); 533EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
490 534
491unsigned int ev_supported_backends (void); 535EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
492unsigned int ev_recommended_backends (void); 536EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
493unsigned int ev_embeddable_backends (void); 537EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
494 538
495ev_tstamp ev_time (void); 539EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
496void ev_sleep (ev_tstamp delay); /* sleep for a while */ 540EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
497 541
498/* Sets the allocation function to use, works like realloc. 542/* Sets the allocation function to use, works like realloc.
499 * It is used to allocate and free memory. 543 * It is used to allocate and free memory.
500 * If it returns zero when memory needs to be allocated, the library might abort 544 * If it returns zero when memory needs to be allocated, the library might abort
501 * or take some potentially destructive action. 545 * or take some potentially destructive action.
502 * The default is your system realloc function. 546 * The default is your system realloc function.
503 */ 547 */
504void ev_set_allocator (void *(*cb)(void *ptr, long size)); 548EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
505 549
506/* set the callback function to call on a 550/* set the callback function to call on a
507 * retryable syscall error 551 * retryable syscall error
508 * (such as failed select, poll, epoll_wait) 552 * (such as failed select, poll, epoll_wait)
509 */ 553 */
510void ev_set_syserr_cb (void (*cb)(const char *msg)); 554EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT;
511 555
512#if EV_MULTIPLICITY 556#if EV_MULTIPLICITY
513 557
514/* the default loop is the only one that handles signals and child watchers */ 558/* the default loop is the only one that handles signals and child watchers */
515/* you can call this as often as you like */ 559/* you can call this as often as you like */
516struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); 560EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
561
562#ifdef EV_API_STATIC
563EV_API_DECL struct ev_loop *ev_default_loop_ptr;
564#endif
517 565
518EV_INLINE struct ev_loop * 566EV_INLINE struct ev_loop *
519ev_default_loop_uc (void) 567ev_default_loop_uc_ (void) EV_NOEXCEPT
520{ 568{
521 extern struct ev_loop *ev_default_loop_ptr; 569 extern struct ev_loop *ev_default_loop_ptr;
522 570
523 return ev_default_loop_ptr; 571 return ev_default_loop_ptr;
524} 572}
525 573
526EV_INLINE int 574EV_INLINE int
527ev_is_default_loop (EV_P) 575ev_is_default_loop (EV_P) EV_NOEXCEPT
528{ 576{
529 return EV_A == ev_default_loop_uc (); 577 return EV_A == EV_DEFAULT_UC;
530} 578}
531 579
532/* create and destroy alternative loops that don't handle signals */ 580/* create and destroy alternative loops that don't handle signals */
533struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); 581EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
534void ev_loop_destroy (EV_P);
535void ev_loop_fork (EV_P);
536 582
537ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 583EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */
538 584
539#else 585#else
540 586
541int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ 587EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
588
589EV_API_DECL ev_tstamp ev_rt_now;
542 590
543EV_INLINE ev_tstamp 591EV_INLINE ev_tstamp
544ev_now (void) 592ev_now (void) EV_NOEXCEPT
545{ 593{
546 extern ev_tstamp ev_rt_now;
547
548 return ev_rt_now; 594 return ev_rt_now;
549} 595}
550 596
551/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ 597/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
552EV_INLINE int 598EV_INLINE int
553ev_is_default_loop (void) 599ev_is_default_loop (void) EV_NOEXCEPT
554{ 600{
555 return 1; 601 return 1;
556} 602}
557 603
558#endif /* multiplicity */ 604#endif /* multiplicity */
559 605
560void ev_default_destroy (void); /* destroy the default loop */ 606/* destroy event loops, also works for the default loop */
607EV_API_DECL void ev_loop_destroy (EV_P);
608
561/* this needs to be called after fork, to duplicate the default loop */ 609/* this needs to be called after fork, to duplicate the loop */
562/* if you create alternative loops you have to call ev_loop_fork on them */ 610/* when you want to re-use it in the child */
563/* you can call it in either the parent or the child */ 611/* you can call it in either the parent or the child */
564/* you can actually call it at any time, anywhere :) */ 612/* you can actually call it at any time, anywhere :) */
565void ev_default_fork (void); 613EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
566 614
567unsigned int ev_backend (EV_P); /* backend in use by loop */ 615EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
568 616
569void ev_now_update (EV_P); /* update event loop time */ 617EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
570 618
571#if EV_WALK_ENABLE 619#if EV_WALK_ENABLE
572/* walk (almost) all watchers in the loop of a given type, invoking the */ 620/* walk (almost) all watchers in the loop of a given type, invoking the */
573/* callback on every such watcher. The callback might stop the watcher, */ 621/* callback on every such watcher. The callback might stop the watcher, */
574/* but do nothing else with the loop */ 622/* but do nothing else with the loop */
575void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 623EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT;
576#endif 624#endif
577 625
578#endif /* prototypes */ 626#endif /* prototypes */
579 627
580/* ev_run flags values */ 628/* ev_run flags values */
… …
589 EVBREAK_ONE = 1, /* unloop once */ 637 EVBREAK_ONE = 1, /* unloop once */
590 EVBREAK_ALL = 2 /* unloop all loops */ 638 EVBREAK_ALL = 2 /* unloop all loops */
591}; 639};
592 640
593#if EV_PROTOTYPES 641#if EV_PROTOTYPES
594void ev_run (EV_P_ int flags EV_CPP (= 0)); 642EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
595void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ 643EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */
596 644
597/* 645/*
598 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 646 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
599 * keeps one reference. if you have a long-running watcher you never unregister that 647 * keeps one reference. if you have a long-running watcher you never unregister that
600 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 648 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
601 */ 649 */
602void ev_ref (EV_P); 650EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
603void ev_unref (EV_P); 651EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
604 652
605/* 653/*
606 * convenience function, wait for a single event, without registering an event watcher 654 * convenience function, wait for a single event, without registering an event watcher
607 * if timeout is < 0, do wait indefinitely 655 * if timeout is < 0, do wait indefinitely
608 */ 656 */
609void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 657EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT;
610 658
611# if EV_FEATURE_API 659# if EV_FEATURE_API
612unsigned int ev_iteration (EV_P); /* number of loop iterations */ 660EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
613unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 661EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
614void ev_verify (EV_P); /* abort if loop data corrupted */ 662EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
615 663
616void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 664EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
617void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 665EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
618 666
619/* advanced stuff for threading etc. support, see docs */ 667/* advanced stuff for threading etc. support, see docs */
620void ev_set_userdata (EV_P_ void *data); 668EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
621void *ev_userdata (EV_P); 669EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
622void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); 670typedef void (*ev_loop_callback)(EV_P);
671EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
672/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
623void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); 673EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT;
624 674
625unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ 675EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
626void ev_invoke_pending (EV_P); /* invoke all pending watchers */ 676EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
627 677
628/* 678/*
629 * stop/start the timer handling. 679 * stop/start the timer handling.
630 */ 680 */
631void ev_suspend (EV_P); 681EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
632void ev_resume (EV_P); 682EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
633#endif 683#endif
634 684
635#endif 685#endif
636 686
637/* these may evaluate ev multiple times, and the other arguments at most once */ 687/* these may evaluate ev multiple times, and the other arguments at most once */
… …
652#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 702#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
653#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 703#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
654#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 704#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
655#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 705#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
656#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 706#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
707#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
657#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ 708#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
658 709
659#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 710#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
660#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 711#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
661#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) 712#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
… …
665#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 716#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
666#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 717#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
667#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 718#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
668#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) 719#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
669#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 720#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
721#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
670#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 722#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
671 723
672#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 724#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
673#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 725#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
674 726
675#define ev_cb(ev) (ev)->cb /* rw */ 727#define ev_cb_(ev) (ev)->cb /* rw */
728#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
676 729
677#if EV_MINPRI == EV_MAXPRI 730#if EV_MINPRI == EV_MAXPRI
678# define ev_priority(ev) ((ev), EV_MINPRI) 731# define ev_priority(ev) ((ev), EV_MINPRI)
679# define ev_set_priority(ev,pri) ((ev), (pri)) 732# define ev_set_priority(ev,pri) ((ev), (pri))
680#else 733#else
… …
683#endif 736#endif
684 737
685#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) 738#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
686 739
687#ifndef ev_set_cb 740#ifndef ev_set_cb
688# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 741# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
689#endif 742#endif
690 743
691/* stopping (enabling, adding) a watcher does nothing if it is already running */ 744/* stopping (enabling, adding) a watcher does nothing if it is already running */
692/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 745/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
693#if EV_PROTOTYPES 746#if EV_PROTOTYPES
694 747
695/* feeds an event into a watcher as if the event actually occured */ 748/* feeds an event into a watcher as if the event actually occurred */
696/* accepts any ev_watcher type */ 749/* accepts any ev_watcher type */
697void ev_feed_event (EV_P_ void *w, int revents); 750EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
698void ev_feed_fd_event (EV_P_ int fd, int revents); 751EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
699#if EV_SIGNAL_ENABLE 752#if EV_SIGNAL_ENABLE
753EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
700void ev_feed_signal_event (EV_P_ int signum); 754EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
701#endif 755#endif
702void ev_invoke (EV_P_ void *w, int revents); 756EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
703int ev_clear_pending (EV_P_ void *w); 757EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
704 758
705void ev_io_start (EV_P_ ev_io *w); 759EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
706void ev_io_stop (EV_P_ ev_io *w); 760EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
707 761
708void ev_timer_start (EV_P_ ev_timer *w); 762EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
709void ev_timer_stop (EV_P_ ev_timer *w); 763EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
710/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 764/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
711void ev_timer_again (EV_P_ ev_timer *w); 765EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
712/* return remaining time */ 766/* return remaining time */
713ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); 767EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
714 768
715#if EV_PERIODIC_ENABLE 769#if EV_PERIODIC_ENABLE
716void ev_periodic_start (EV_P_ ev_periodic *w); 770EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
717void ev_periodic_stop (EV_P_ ev_periodic *w); 771EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
718void ev_periodic_again (EV_P_ ev_periodic *w); 772EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
719#endif 773#endif
720 774
721/* only supported in the default loop */ 775/* only supported in the default loop */
722#if EV_SIGNAL_ENABLE 776#if EV_SIGNAL_ENABLE
723void ev_signal_start (EV_P_ ev_signal *w); 777EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
724void ev_signal_stop (EV_P_ ev_signal *w); 778EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
725#endif 779#endif
726 780
727/* only supported in the default loop */ 781/* only supported in the default loop */
728# if EV_CHILD_ENABLE 782# if EV_CHILD_ENABLE
729void ev_child_start (EV_P_ ev_child *w); 783EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
730void ev_child_stop (EV_P_ ev_child *w); 784EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
731# endif 785# endif
732 786
733# if EV_STAT_ENABLE 787# if EV_STAT_ENABLE
734void ev_stat_start (EV_P_ ev_stat *w); 788EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
735void ev_stat_stop (EV_P_ ev_stat *w); 789EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
736void ev_stat_stat (EV_P_ ev_stat *w); 790EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
737# endif 791# endif
738 792
739# if EV_IDLE_ENABLE 793# if EV_IDLE_ENABLE
740void ev_idle_start (EV_P_ ev_idle *w); 794EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
741void ev_idle_stop (EV_P_ ev_idle *w); 795EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
742# endif 796# endif
743 797
744#if EV_PREPARE_ENABLE 798#if EV_PREPARE_ENABLE
745void ev_prepare_start (EV_P_ ev_prepare *w); 799EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
746void ev_prepare_stop (EV_P_ ev_prepare *w); 800EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
747#endif 801#endif
748 802
749#if EV_CHECK_ENABLE 803#if EV_CHECK_ENABLE
750void ev_check_start (EV_P_ ev_check *w); 804EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
751void ev_check_stop (EV_P_ ev_check *w); 805EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
752#endif 806#endif
753 807
754# if EV_FORK_ENABLE 808# if EV_FORK_ENABLE
755void ev_fork_start (EV_P_ ev_fork *w); 809EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
756void ev_fork_stop (EV_P_ ev_fork *w); 810EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
811# endif
812
813# if EV_CLEANUP_ENABLE
814EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
815EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
757# endif 816# endif
758 817
759# if EV_EMBED_ENABLE 818# if EV_EMBED_ENABLE
760/* only supported when loop to be embedded is in fact embeddable */ 819/* only supported when loop to be embedded is in fact embeddable */
761void ev_embed_start (EV_P_ ev_embed *w); 820EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
762void ev_embed_stop (EV_P_ ev_embed *w); 821EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
763void ev_embed_sweep (EV_P_ ev_embed *w); 822EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
764# endif 823# endif
765 824
766# if EV_ASYNC_ENABLE 825# if EV_ASYNC_ENABLE
767void ev_async_start (EV_P_ ev_async *w); 826EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
768void ev_async_stop (EV_P_ ev_async *w); 827EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
769void ev_async_send (EV_P_ ev_async *w); 828EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
770# endif 829# endif
771 830
772#if EV_COMPAT3 831#if EV_COMPAT3
773 #define EVLOOP_NONBLOCK EVRUN_NOWAIT 832 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
774 #define EVLOOP_ONESHOT EVRUN_ONCE 833 #define EVLOOP_ONESHOT EVRUN_ONCE
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776 #define EVUNLOOP_ONE EVBREAK_ONE 835 #define EVUNLOOP_ONE EVBREAK_ONE
777 #define EVUNLOOP_ALL EVBREAK_ALL 836 #define EVUNLOOP_ALL EVBREAK_ALL
778 #if EV_PROTOTYPES 837 #if EV_PROTOTYPES
779 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } 838 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
780 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } 839 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
840 EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
841 EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
781 #if EV_FEATURE_API 842 #if EV_FEATURE_API
782 EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } 843 EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
783 EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } 844 EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
784 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } 845 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
785 #endif 846 #endif
786 #endif 847 #endif
787#else 848#else
788 typedef struct ev_loop ev_loop; 849 typedef struct ev_loop ev_loop;
789#endif 850#endif

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