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Comparing libev/ev.h (file contents):
Revision 1.150 by root, Sun Oct 24 18:05:53 2010 UTC vs.
Revision 1.196 by root, Thu Jul 11 04:35:48 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)
98#ifndef EV_IDLE_ENABLE 109#ifndef EV_IDLE_ENABLE
99# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS 110# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
100#endif 111#endif
101 112
102#ifndef EV_FORK_ENABLE 113#ifndef EV_FORK_ENABLE
103# define EV_FORK_ENABLE 0 /* not implemented */ 114# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
104#endif 115#endif
105 116
106#ifndef EV_CLEANUP_ENABLE 117#ifndef EV_CLEANUP_ENABLE
107# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS 118# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
108#endif 119#endif
138# define EV_SIGNAL_ENABLE 1 149# define EV_SIGNAL_ENABLE 1
139#endif 150#endif
140 151
141/*****************************************************************************/ 152/*****************************************************************************/
142 153
143typedef double ev_tstamp; 154#ifndef EV_TSTAMP_T
155# define EV_TSTAMP_T double
156#endif
157typedef EV_TSTAMP_T ev_tstamp;
158
159#include <string.h> /* for memmove */
144 160
145#ifndef EV_ATOMIC_T 161#ifndef EV_ATOMIC_T
146# include <signal.h> 162# include <signal.h>
147# define EV_ATOMIC_T sig_atomic_t volatile 163# define EV_ATOMIC_T sig_atomic_t volatile
148#endif 164#endif
183# define EV_INLINE static inline 199# define EV_INLINE static inline
184#else 200#else
185# define EV_INLINE static 201# define EV_INLINE static
186#endif 202#endif
187 203
204#ifdef EV_API_STATIC
205# define EV_API_DECL static
206#else
207# define EV_API_DECL extern
208#endif
209
188/* EV_PROTOTYPES can be sued to switch of prototype declarations */ 210/* EV_PROTOTYPES can be used to switch of prototype declarations */
189#ifndef EV_PROTOTYPES 211#ifndef EV_PROTOTYPES
190# define EV_PROTOTYPES 1 212# define EV_PROTOTYPES 1
191#endif 213#endif
192 214
193/*****************************************************************************/ 215/*****************************************************************************/
194 216
195#define EV_VERSION_MAJOR 4 217#define EV_VERSION_MAJOR 4
196#define EV_VERSION_MINOR 0 218#define EV_VERSION_MINOR 27
197 219
198/* eventmask, revents, events... */ 220/* eventmask, revents, events... */
199enum { 221enum {
200 EV_UNDEF = -1, /* guaranteed to be invalid */ 222 EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
201 EV_NONE = 0x00, /* no events */ 223 EV_NONE = 0x00, /* no events */
202 EV_READ = 0x01, /* ev_io detected read will not block */ 224 EV_READ = 0x01, /* ev_io detected read will not block */
203 EV_WRITE = 0x02, /* ev_io detected write will not block */ 225 EV_WRITE = 0x02, /* ev_io detected write will not block */
204 EV__IOFDSET = 0x80, /* internal use only */ 226 EV__IOFDSET = 0x80, /* internal use only */
205 EV_IO = EV_READ, /* alias for type-detection */ 227 EV_IO = EV_READ, /* alias for type-detection */
206 EV_TIMER = 0x00000100, /* timer timed out */ 228 EV_TIMER = 0x00000100, /* timer timed out */
207#if EV_COMPAT3 229#if EV_COMPAT3
208 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ 230 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
209#endif 231#endif
210 EV_PERIODIC = 0x00000200, /* periodic timer timed out */ 232 EV_PERIODIC = 0x00000200, /* periodic timer timed out */
211 EV_SIGNAL = 0x00000400, /* signal was received */ 233 EV_SIGNAL = 0x00000400, /* signal was received */
212 EV_CHILD = 0x00000800, /* child/pid had status change */ 234 EV_CHILD = 0x00000800, /* child/pid had status change */
213 EV_STAT = 0x00001000, /* stat data changed */ 235 EV_STAT = 0x00001000, /* stat data changed */
214 EV_IDLE = 0x00002000, /* event loop is idling */ 236 EV_IDLE = 0x00002000, /* event loop is idling */
215 EV_PREPARE = 0x00004000, /* event loop about to poll */ 237 EV_PREPARE = 0x00004000, /* event loop about to poll */
216 EV_CHECK = 0x00008000, /* event loop finished poll */ 238 EV_CHECK = 0x00008000, /* event loop finished poll */
217 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ 239 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
218 EV_FORK = 0x00020000, /* event loop resumed in child */ 240 EV_FORK = 0x00020000, /* event loop resumed in child */
219 EV_CLEANUP = 0x00040000, /* event loop resumed in child */ 241 EV_CLEANUP = 0x00040000, /* event loop resumed in child */
220 EV_ASYNC = 0x00080000, /* async intra-loop signal */ 242 EV_ASYNC = 0x00080000, /* async intra-loop signal */
221 EV_CUSTOM = 0x01000000, /* for use by user code */ 243 EV_CUSTOM = 0x01000000, /* for use by user code */
222 EV_ERROR = 0x80000000 /* sent when an error occurs */ 244 EV_ERROR = (int)0x80000000 /* sent when an error occurs */
223}; 245};
224 246
225/* can be used to add custom fields to all watchers, while losing binary compatibility */ 247/* can be used to add custom fields to all watchers, while losing binary compatibility */
226#ifndef EV_COMMON 248#ifndef EV_COMMON
227# define EV_COMMON void *data; 249# define EV_COMMON void *data;
319{ 341{
320 EV_WATCHER_TIME (ev_periodic) 342 EV_WATCHER_TIME (ev_periodic)
321 343
322 ev_tstamp offset; /* rw */ 344 ev_tstamp offset; /* rw */
323 ev_tstamp interval; /* rw */ 345 ev_tstamp interval; /* rw */
324 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 346 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */
325} ev_periodic; 347} ev_periodic;
326 348
327/* invoked when the given signal has been received */ 349/* invoked when the given signal has been received */
328/* revent EV_SIGNAL */ 350/* revent EV_SIGNAL */
329typedef struct ev_signal 351typedef struct ev_signal
425 ev_check check; /* unused */ 447 ev_check check; /* unused */
426 ev_timer timer; /* unused */ 448 ev_timer timer; /* unused */
427 ev_periodic periodic; /* unused */ 449 ev_periodic periodic; /* unused */
428 ev_idle idle; /* unused */ 450 ev_idle idle; /* unused */
429 ev_fork fork; /* private */ 451 ev_fork fork; /* private */
452#if EV_CLEANUP_ENABLE
430 ev_cleanup cleanup; /* unused */ 453 ev_cleanup cleanup; /* unused */
454#endif
431} ev_embed; 455} ev_embed;
432#endif 456#endif
433 457
434#if EV_ASYNC_ENABLE 458#if EV_ASYNC_ENABLE
435/* invoked when somebody calls ev_async_send on the watcher */ 459/* invoked when somebody calls ev_async_send on the watcher */
487 /* debugging/feature disable */ 511 /* debugging/feature disable */
488 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ 512 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
489#if EV_COMPAT3 513#if EV_COMPAT3
490 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ 514 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
491#endif 515#endif
492 EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ 516 EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
517 EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
493}; 518};
494 519
495/* method bits to be ored together */ 520/* method bits to be ored together */
496enum { 521enum {
497 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ 522 EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
498 EVBACKEND_POLL = 0x00000002U, /* !win */ 523 EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
499 EVBACKEND_EPOLL = 0x00000004U, /* linux */ 524 EVBACKEND_EPOLL = 0x00000004U, /* linux */
500 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ 525 EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
501 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ 526 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
502 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ 527 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
503 EVBACKEND_ALL = 0x0000003FU 528 EVBACKEND_LINUXAIO = 0x00000040U, /* linuix AIO, 4.19+ */
529 EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, 5.1+ */
530 EVBACKEND_ALL = 0x000000FFU, /* all known backends */
531 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
504}; 532};
505 533
506#if EV_PROTOTYPES 534#if EV_PROTOTYPES
507int ev_version_major (void); 535EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
508int ev_version_minor (void); 536EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
509 537
510unsigned int ev_supported_backends (void); 538EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
511unsigned int ev_recommended_backends (void); 539EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
512unsigned int ev_embeddable_backends (void); 540EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
513 541
514ev_tstamp ev_time (void); 542EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
515void ev_sleep (ev_tstamp delay); /* sleep for a while */ 543EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
516 544
517/* Sets the allocation function to use, works like realloc. 545/* Sets the allocation function to use, works like realloc.
518 * It is used to allocate and free memory. 546 * It is used to allocate and free memory.
519 * If it returns zero when memory needs to be allocated, the library might abort 547 * If it returns zero when memory needs to be allocated, the library might abort
520 * or take some potentially destructive action. 548 * or take some potentially destructive action.
521 * The default is your system realloc function. 549 * The default is your system realloc function.
522 */ 550 */
523void ev_set_allocator (void *(*cb)(void *ptr, long size)); 551EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
524 552
525/* set the callback function to call on a 553/* set the callback function to call on a
526 * retryable syscall error 554 * retryable syscall error
527 * (such as failed select, poll, epoll_wait) 555 * (such as failed select, poll, epoll_wait)
528 */ 556 */
529void ev_set_syserr_cb (void (*cb)(const char *msg)); 557EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT;
530 558
531#if EV_MULTIPLICITY 559#if EV_MULTIPLICITY
532 560
533/* the default loop is the only one that handles signals and child watchers */ 561/* the default loop is the only one that handles signals and child watchers */
534/* you can call this as often as you like */ 562/* you can call this as often as you like */
535struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); 563EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
564
565#ifdef EV_API_STATIC
566EV_API_DECL struct ev_loop *ev_default_loop_ptr;
567#endif
536 568
537EV_INLINE struct ev_loop * 569EV_INLINE struct ev_loop *
538ev_default_loop_uc_ (void) 570ev_default_loop_uc_ (void) EV_NOEXCEPT
539{ 571{
540 extern struct ev_loop *ev_default_loop_ptr; 572 extern struct ev_loop *ev_default_loop_ptr;
541 573
542 return ev_default_loop_ptr; 574 return ev_default_loop_ptr;
543} 575}
544 576
545EV_INLINE int 577EV_INLINE int
546ev_is_default_loop (EV_P) 578ev_is_default_loop (EV_P) EV_NOEXCEPT
547{ 579{
548 return EV_A == EV_DEFAULT_UC; 580 return EV_A == EV_DEFAULT_UC;
549} 581}
550 582
551/* create and destroy alternative loops that don't handle signals */ 583/* create and destroy alternative loops that don't handle signals */
552struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); 584EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
553/* destroy event loops, also works for the default loop */
554void ev_loop_destroy (EV_P);
555 585
556ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 586EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */
557 587
558#else 588#else
559 589
560int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ 590EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
591
592EV_API_DECL ev_tstamp ev_rt_now;
561 593
562EV_INLINE ev_tstamp 594EV_INLINE ev_tstamp
563ev_now (void) 595ev_now (void) EV_NOEXCEPT
564{ 596{
565 extern ev_tstamp ev_rt_now;
566
567 return ev_rt_now; 597 return ev_rt_now;
568} 598}
569 599
570/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ 600/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
571EV_INLINE int 601EV_INLINE int
572ev_is_default_loop (void) 602ev_is_default_loop (void) EV_NOEXCEPT
573{ 603{
574 return 1; 604 return 1;
575} 605}
576 606
577#endif /* multiplicity */ 607#endif /* multiplicity */
608
609/* destroy event loops, also works for the default loop */
610EV_API_DECL void ev_loop_destroy (EV_P);
578 611
579/* this needs to be called after fork, to duplicate the loop */ 612/* this needs to be called after fork, to duplicate the loop */
580/* when you want to re-use it in the child */ 613/* when you want to re-use it in the child */
581/* you can call it in either the parent or the child */ 614/* you can call it in either the parent or the child */
582/* you can actually call it at any time, anywhere :) */ 615/* you can actually call it at any time, anywhere :) */
583void ev_loop_fork (EV_P); 616EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
584 617
585unsigned int ev_backend (EV_P); /* backend in use by loop */ 618EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
586 619
587void ev_now_update (EV_P); /* update event loop time */ 620EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
588 621
589#if EV_WALK_ENABLE 622#if EV_WALK_ENABLE
590/* walk (almost) all watchers in the loop of a given type, invoking the */ 623/* walk (almost) all watchers in the loop of a given type, invoking the */
591/* callback on every such watcher. The callback might stop the watcher, */ 624/* callback on every such watcher. The callback might stop the watcher, */
592/* but do nothing else with the loop */ 625/* but do nothing else with the loop */
593void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 626EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT;
594#endif 627#endif
595 628
596#endif /* prototypes */ 629#endif /* prototypes */
597 630
598/* ev_run flags values */ 631/* ev_run flags values */
607 EVBREAK_ONE = 1, /* unloop once */ 640 EVBREAK_ONE = 1, /* unloop once */
608 EVBREAK_ALL = 2 /* unloop all loops */ 641 EVBREAK_ALL = 2 /* unloop all loops */
609}; 642};
610 643
611#if EV_PROTOTYPES 644#if EV_PROTOTYPES
612void ev_run (EV_P_ int flags EV_CPP (= 0)); 645EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
613void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ 646EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */
614 647
615/* 648/*
616 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 649 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
617 * keeps one reference. if you have a long-running watcher you never unregister that 650 * keeps one reference. if you have a long-running watcher you never unregister that
618 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 651 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
619 */ 652 */
620void ev_ref (EV_P); 653EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
621void ev_unref (EV_P); 654EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
622 655
623/* 656/*
624 * convenience function, wait for a single event, without registering an event watcher 657 * convenience function, wait for a single event, without registering an event watcher
625 * if timeout is < 0, do wait indefinitely 658 * if timeout is < 0, do wait indefinitely
626 */ 659 */
627void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 660EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT;
628 661
629# if EV_FEATURE_API 662# if EV_FEATURE_API
630unsigned int ev_iteration (EV_P); /* number of loop iterations */ 663EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
631unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 664EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
632void ev_verify (EV_P); /* abort if loop data corrupted */ 665EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
633 666
634void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 667EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
635void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 668EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
636 669
637/* advanced stuff for threading etc. support, see docs */ 670/* advanced stuff for threading etc. support, see docs */
638void ev_set_userdata (EV_P_ void *data); 671EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
639void *ev_userdata (EV_P); 672EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
640void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); 673typedef void (*ev_loop_callback)(EV_P);
674EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
675/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
641void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); 676EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT;
642 677
643unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ 678EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
644void ev_invoke_pending (EV_P); /* invoke all pending watchers */ 679EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
645 680
646/* 681/*
647 * stop/start the timer handling. 682 * stop/start the timer handling.
648 */ 683 */
649void ev_suspend (EV_P); 684EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
650void ev_resume (EV_P); 685EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
651#endif 686#endif
652 687
653#endif 688#endif
654 689
655/* these may evaluate ev multiple times, and the other arguments at most once */ 690/* these may evaluate ev multiple times, and the other arguments at most once */
690#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 725#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
691 726
692#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 727#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
693#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 728#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
694 729
695#define ev_cb(ev) (ev)->cb /* rw */ 730#define ev_cb_(ev) (ev)->cb /* rw */
731#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
696 732
697#if EV_MINPRI == EV_MAXPRI 733#if EV_MINPRI == EV_MAXPRI
698# define ev_priority(ev) ((ev), EV_MINPRI) 734# define ev_priority(ev) ((ev), EV_MINPRI)
699# define ev_set_priority(ev,pri) ((ev), (pri)) 735# define ev_set_priority(ev,pri) ((ev), (pri))
700#else 736#else
703#endif 739#endif
704 740
705#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) 741#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
706 742
707#ifndef ev_set_cb 743#ifndef ev_set_cb
708# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 744# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
709#endif 745#endif
710 746
711/* stopping (enabling, adding) a watcher does nothing if it is already running */ 747/* stopping (enabling, adding) a watcher does nothing if it is already running */
712/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 748/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
713#if EV_PROTOTYPES 749#if EV_PROTOTYPES
714 750
715/* feeds an event into a watcher as if the event actually occured */ 751/* feeds an event into a watcher as if the event actually occurred */
716/* accepts any ev_watcher type */ 752/* accepts any ev_watcher type */
717void ev_feed_event (EV_P_ void *w, int revents); 753EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
718void ev_feed_fd_event (EV_P_ int fd, int revents); 754EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
719#if EV_SIGNAL_ENABLE 755#if EV_SIGNAL_ENABLE
756EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
720void ev_feed_signal_event (EV_P_ int signum); 757EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
721#endif 758#endif
722void ev_invoke (EV_P_ void *w, int revents); 759EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
723int ev_clear_pending (EV_P_ void *w); 760EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
724 761
725void ev_io_start (EV_P_ ev_io *w); 762EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
726void ev_io_stop (EV_P_ ev_io *w); 763EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
727 764
728void ev_timer_start (EV_P_ ev_timer *w); 765EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
729void ev_timer_stop (EV_P_ ev_timer *w); 766EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
730/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 767/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
731void ev_timer_again (EV_P_ ev_timer *w); 768EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
732/* return remaining time */ 769/* return remaining time */
733ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); 770EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
734 771
735#if EV_PERIODIC_ENABLE 772#if EV_PERIODIC_ENABLE
736void ev_periodic_start (EV_P_ ev_periodic *w); 773EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
737void ev_periodic_stop (EV_P_ ev_periodic *w); 774EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
738void ev_periodic_again (EV_P_ ev_periodic *w); 775EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
739#endif 776#endif
740 777
741/* only supported in the default loop */ 778/* only supported in the default loop */
742#if EV_SIGNAL_ENABLE 779#if EV_SIGNAL_ENABLE
743void ev_signal_start (EV_P_ ev_signal *w); 780EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
744void ev_signal_stop (EV_P_ ev_signal *w); 781EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
745#endif 782#endif
746 783
747/* only supported in the default loop */ 784/* only supported in the default loop */
748# if EV_CHILD_ENABLE 785# if EV_CHILD_ENABLE
749void ev_child_start (EV_P_ ev_child *w); 786EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
750void ev_child_stop (EV_P_ ev_child *w); 787EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
751# endif 788# endif
752 789
753# if EV_STAT_ENABLE 790# if EV_STAT_ENABLE
754void ev_stat_start (EV_P_ ev_stat *w); 791EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
755void ev_stat_stop (EV_P_ ev_stat *w); 792EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
756void ev_stat_stat (EV_P_ ev_stat *w); 793EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
757# endif 794# endif
758 795
759# if EV_IDLE_ENABLE 796# if EV_IDLE_ENABLE
760void ev_idle_start (EV_P_ ev_idle *w); 797EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
761void ev_idle_stop (EV_P_ ev_idle *w); 798EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
762# endif 799# endif
763 800
764#if EV_PREPARE_ENABLE 801#if EV_PREPARE_ENABLE
765void ev_prepare_start (EV_P_ ev_prepare *w); 802EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
766void ev_prepare_stop (EV_P_ ev_prepare *w); 803EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
767#endif 804#endif
768 805
769#if EV_CHECK_ENABLE 806#if EV_CHECK_ENABLE
770void ev_check_start (EV_P_ ev_check *w); 807EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
771void ev_check_stop (EV_P_ ev_check *w); 808EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
772#endif 809#endif
773 810
774# if EV_FORK_ENABLE 811# if EV_FORK_ENABLE
775void ev_fork_start (EV_P_ ev_fork *w); 812EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
776void ev_fork_stop (EV_P_ ev_fork *w); 813EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
777# endif 814# endif
778 815
779# if EV_CLEANUP_ENABLE 816# if EV_CLEANUP_ENABLE
780void ev_cleanup_start (EV_P_ ev_cleanup *w); 817EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
781void ev_cleanup_stop (EV_P_ ev_cleanup *w); 818EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
782# endif 819# endif
783 820
784# if EV_EMBED_ENABLE 821# if EV_EMBED_ENABLE
785/* only supported when loop to be embedded is in fact embeddable */ 822/* only supported when loop to be embedded is in fact embeddable */
786void ev_embed_start (EV_P_ ev_embed *w); 823EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
787void ev_embed_stop (EV_P_ ev_embed *w); 824EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
788void ev_embed_sweep (EV_P_ ev_embed *w); 825EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
789# endif 826# endif
790 827
791# if EV_ASYNC_ENABLE 828# if EV_ASYNC_ENABLE
792void ev_async_start (EV_P_ ev_async *w); 829EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
793void ev_async_stop (EV_P_ ev_async *w); 830EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
794void ev_async_send (EV_P_ ev_async *w); 831EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
795# endif 832# endif
796 833
797#if EV_COMPAT3 834#if EV_COMPAT3
798 #define EVLOOP_NONBLOCK EVRUN_NOWAIT 835 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
799 #define EVLOOP_ONESHOT EVRUN_ONCE 836 #define EVLOOP_ONESHOT EVRUN_ONCE
804 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } 841 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
805 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } 842 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
806 EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } 843 EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
807 EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } 844 EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
808 #if EV_FEATURE_API 845 #if EV_FEATURE_API
809 EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } 846 EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
810 EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } 847 EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
811 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } 848 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
812 #endif 849 #endif
813 #endif 850 #endif
814#else 851#else
815 typedef struct ev_loop ev_loop; 852 typedef struct ev_loop ev_loop;
816#endif 853#endif

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