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Comparing libev/ev.h (file contents):
Revision 1.177 by root, Tue Sep 9 13:34:46 2014 UTC vs.
Revision 1.202 by root, Wed Jan 22 02:00:13 2020 UTC

1/* 1/*
2 * libev native API header 2 * libev native API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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 *
… …
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
48 54#define EV_THROW EV_NOEXCEPT /* pre-4.25, do not use in new code */
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 55
59EV_CPP(extern "C" {) 56EV_CPP(extern "C" {)
60 57
61/*****************************************************************************/ 58/*****************************************************************************/
62 59
… …
152# define EV_SIGNAL_ENABLE 1 149# define EV_SIGNAL_ENABLE 1
153#endif 150#endif
154 151
155/*****************************************************************************/ 152/*****************************************************************************/
156 153
157typedef 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 */
158 160
159#ifndef EV_ATOMIC_T 161#ifndef EV_ATOMIC_T
160# include <signal.h> 162# include <signal.h>
161# define EV_ATOMIC_T sig_atomic_t volatile 163# define EV_ATOMIC_T sig_atomic_t volatile
162#endif 164#endif
… …
211#endif 213#endif
212 214
213/*****************************************************************************/ 215/*****************************************************************************/
214 216
215#define EV_VERSION_MAJOR 4 217#define EV_VERSION_MAJOR 4
216#define EV_VERSION_MINOR 18 218#define EV_VERSION_MINOR 31
217 219
218/* eventmask, revents, events... */ 220/* eventmask, revents, events... */
219enum { 221enum {
220 EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */ 222 EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
221 EV_NONE = 0x00, /* no events */ 223 EV_NONE = 0x00, /* no events */
… …
339{ 341{
340 EV_WATCHER_TIME (ev_periodic) 342 EV_WATCHER_TIME (ev_periodic)
341 343
342 ev_tstamp offset; /* rw */ 344 ev_tstamp offset; /* rw */
343 ev_tstamp interval; /* rw */ 345 ev_tstamp interval; /* rw */
344 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_THROW; /* rw */ 346 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */
345} ev_periodic; 347} ev_periodic;
346 348
347/* invoked when the given signal has been received */ 349/* invoked when the given signal has been received */
348/* revent EV_SIGNAL */ 350/* revent EV_SIGNAL */
349typedef struct ev_signal 351typedef struct ev_signal
… …
388 390
389 int wd; /* wd for inotify, fd for kqueue */ 391 int wd; /* wd for inotify, fd for kqueue */
390} ev_stat; 392} ev_stat;
391#endif 393#endif
392 394
393#if EV_IDLE_ENABLE
394/* invoked when the nothing else needs to be done, keeps the process from blocking */ 395/* invoked when the nothing else needs to be done, keeps the process from blocking */
395/* revent EV_IDLE */ 396/* revent EV_IDLE */
396typedef struct ev_idle 397typedef struct ev_idle
397{ 398{
398 EV_WATCHER (ev_idle) 399 EV_WATCHER (ev_idle)
399} ev_idle; 400} ev_idle;
400#endif
401 401
402/* invoked for each run of the mainloop, just before the blocking call */ 402/* invoked for each run of the mainloop, just before the blocking call */
403/* you can still change events in any way you like */ 403/* you can still change events in any way you like */
404/* revent EV_PREPARE */ 404/* revent EV_PREPARE */
405typedef struct ev_prepare 405typedef struct ev_prepare
… …
412typedef struct ev_check 412typedef struct ev_check
413{ 413{
414 EV_WATCHER (ev_check) 414 EV_WATCHER (ev_check)
415} ev_check; 415} ev_check;
416 416
417#if EV_FORK_ENABLE
418/* 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 */
419/* revent EV_FORK */ 418/* revent EV_FORK */
420typedef struct ev_fork 419typedef struct ev_fork
421{ 420{
422 EV_WATCHER (ev_fork) 421 EV_WATCHER (ev_fork)
423} ev_fork; 422} ev_fork;
424#endif
425 423
426#if EV_CLEANUP_ENABLE
427/* is invoked just before the loop gets destroyed */ 424/* is invoked just before the loop gets destroyed */
428/* revent EV_CLEANUP */ 425/* revent EV_CLEANUP */
429typedef struct ev_cleanup 426typedef struct ev_cleanup
430{ 427{
431 EV_WATCHER (ev_cleanup) 428 EV_WATCHER (ev_cleanup)
432} ev_cleanup; 429} ev_cleanup;
433#endif
434 430
435#if EV_EMBED_ENABLE 431#if EV_EMBED_ENABLE
436/* used to embed an event loop inside another */ 432/* used to embed an event loop inside another */
437/* the callback gets invoked when the event loop has handled events, and can be 0 */ 433/* the callback gets invoked when the event loop has handled events, and can be 0 */
438typedef struct ev_embed 434typedef struct ev_embed
439{ 435{
440 EV_WATCHER (ev_embed) 436 EV_WATCHER (ev_embed)
441 437
442 struct ev_loop *other; /* ro */ 438 struct ev_loop *other; /* ro */
439#undef EV_IO_ENABLE
440#define EV_IO_ENABLE 1
443 ev_io io; /* private */ 441 ev_io io; /* private */
442#undef EV_PREPARE_ENABLE
443#define EV_PREPARE_ENABLE 1
444 ev_prepare prepare; /* private */ 444 ev_prepare prepare; /* private */
445 ev_check check; /* unused */ 445 ev_check check; /* unused */
446 ev_timer timer; /* unused */ 446 ev_timer timer; /* unused */
447 ev_periodic periodic; /* unused */ 447 ev_periodic periodic; /* unused */
448 ev_idle idle; /* unused */ 448 ev_idle idle; /* unused */
449 ev_fork fork; /* private */ 449 ev_fork fork; /* private */
450#if EV_CLEANUP_ENABLE
451 ev_cleanup cleanup; /* unused */ 450 ev_cleanup cleanup; /* unused */
452#endif
453} ev_embed; 451} ev_embed;
454#endif 452#endif
455 453
456#if EV_ASYNC_ENABLE 454#if EV_ASYNC_ENABLE
457/* invoked when somebody calls ev_async_send on the watcher */ 455/* invoked when somebody calls ev_async_send on the watcher */
… …
500}; 498};
501 499
502/* flag bits for ev_default_loop and ev_loop_new */ 500/* flag bits for ev_default_loop and ev_loop_new */
503enum { 501enum {
504 /* the default */ 502 /* the default */
505 EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ 503 EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
506 /* flag bits */ 504 /* flag bits */
507 EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ 505 EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
508 EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ 506 EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
509 /* debugging/feature disable */ 507 /* debugging/feature disable */
510 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ 508 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
511#if EV_COMPAT3 509#if EV_COMPAT3
512 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ 510 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
513#endif 511#endif
514 EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */ 512 EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
515 EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */ 513 EVFLAG_NOSIGMASK = 0x00400000U, /* avoid modifying the signal mask */
514 EVFLAG_NOTIMERFD = 0x00800000U /* avoid creating a timerfd */
516}; 515};
517 516
518/* method bits to be ored together */ 517/* method bits to be ored together */
519enum { 518enum {
520 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ 519 EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
521 EVBACKEND_POLL = 0x00000002U, /* !win */ 520 EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
522 EVBACKEND_EPOLL = 0x00000004U, /* linux */ 521 EVBACKEND_EPOLL = 0x00000004U, /* linux */
523 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ 522 EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
524 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ 523 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
525 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ 524 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
525 EVBACKEND_LINUXAIO = 0x00000040U, /* linux AIO, 4.19+ */
526 EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, 5.1+ */
526 EVBACKEND_ALL = 0x0000003FU, /* all known backends */ 527 EVBACKEND_ALL = 0x000000FFU, /* all known backends */
527 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ 528 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
528}; 529};
529 530
530#if EV_PROTOTYPES 531#if EV_PROTOTYPES
531EV_API_DECL int ev_version_major (void) EV_THROW; 532EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
532EV_API_DECL int ev_version_minor (void) EV_THROW; 533EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
533 534
534EV_API_DECL unsigned int ev_supported_backends (void) EV_THROW; 535EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
535EV_API_DECL unsigned int ev_recommended_backends (void) EV_THROW; 536EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
536EV_API_DECL unsigned int ev_embeddable_backends (void) EV_THROW; 537EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
537 538
538EV_API_DECL ev_tstamp ev_time (void) EV_THROW; 539EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
539EV_API_DECL void ev_sleep (ev_tstamp delay) EV_THROW; /* sleep for a while */ 540EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
540 541
541/* Sets the allocation function to use, works like realloc. 542/* Sets the allocation function to use, works like realloc.
542 * It is used to allocate and free memory. 543 * It is used to allocate and free memory.
543 * 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
544 * or take some potentially destructive action. 545 * or take some potentially destructive action.
545 * The default is your system realloc function. 546 * The default is your system realloc function.
546 */ 547 */
547EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW; 548EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
548 549
549/* set the callback function to call on a 550/* set the callback function to call on a
550 * retryable syscall error 551 * retryable syscall error
551 * (such as failed select, poll, epoll_wait) 552 * (such as failed select, poll, epoll_wait)
552 */ 553 */
553EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW; 554EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT;
554 555
555#if EV_MULTIPLICITY 556#if EV_MULTIPLICITY
556 557
557/* 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 */
558/* you can call this as often as you like */ 559/* 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; 560EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
560 561
561#ifdef EV_API_STATIC 562#ifdef EV_API_STATIC
562EV_API_DECL struct ev_loop *ev_default_loop_ptr; 563EV_API_DECL struct ev_loop *ev_default_loop_ptr;
563#endif 564#endif
564 565
565EV_INLINE struct ev_loop * 566EV_INLINE struct ev_loop *
566ev_default_loop_uc_ (void) EV_THROW 567ev_default_loop_uc_ (void) EV_NOEXCEPT
567{ 568{
568 extern struct ev_loop *ev_default_loop_ptr; 569 extern struct ev_loop *ev_default_loop_ptr;
569 570
570 return ev_default_loop_ptr; 571 return ev_default_loop_ptr;
571} 572}
572 573
573EV_INLINE int 574EV_INLINE int
574ev_is_default_loop (EV_P) EV_THROW 575ev_is_default_loop (EV_P) EV_NOEXCEPT
575{ 576{
576 return EV_A == EV_DEFAULT_UC; 577 return EV_A == EV_DEFAULT_UC;
577} 578}
578 579
579/* create and destroy alternative loops that don't handle signals */ 580/* create and destroy alternative loops that don't handle signals */
580EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_THROW; 581EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
581 582
582EV_API_DECL ev_tstamp ev_now (EV_P) EV_THROW; /* 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 */
583 584
584#else 585#else
585 586
586EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; /* returns true when successful */ 587EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
587 588
588EV_API_DECL ev_tstamp ev_rt_now; 589EV_API_DECL ev_tstamp ev_rt_now;
589 590
590EV_INLINE ev_tstamp 591EV_INLINE ev_tstamp
591ev_now (void) EV_THROW 592ev_now (void) EV_NOEXCEPT
592{ 593{
593 return ev_rt_now; 594 return ev_rt_now;
594} 595}
595 596
596/* 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 */
597EV_INLINE int 598EV_INLINE int
598ev_is_default_loop (void) EV_THROW 599ev_is_default_loop (void) EV_NOEXCEPT
599{ 600{
600 return 1; 601 return 1;
601} 602}
602 603
603#endif /* multiplicity */ 604#endif /* multiplicity */
… …
607 608
608/* this needs to be called after fork, to duplicate the loop */ 609/* this needs to be called after fork, to duplicate the loop */
609/* when you want to re-use it in the child */ 610/* when you want to re-use it in the child */
610/* you can call it in either the parent or the child */ 611/* you can call it in either the parent or the child */
611/* you can actually call it at any time, anywhere :) */ 612/* you can actually call it at any time, anywhere :) */
612EV_API_DECL void ev_loop_fork (EV_P) EV_THROW; 613EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
613 614
614EV_API_DECL unsigned int ev_backend (EV_P) EV_THROW; /* backend in use by loop */ 615EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
615 616
616EV_API_DECL void ev_now_update (EV_P) EV_THROW; /* update event loop time */ 617EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
617 618
618#if EV_WALK_ENABLE 619#if EV_WALK_ENABLE
619/* 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 */
620/* callback on every such watcher. The callback might stop the watcher, */ 621/* callback on every such watcher. The callback might stop the watcher, */
621/* but do nothing else with the loop */ 622/* but do nothing else with the loop */
622EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW; 623EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT;
623#endif 624#endif
624 625
625#endif /* prototypes */ 626#endif /* prototypes */
626 627
627/* ev_run flags values */ 628/* ev_run flags values */
… …
637 EVBREAK_ALL = 2 /* unloop all loops */ 638 EVBREAK_ALL = 2 /* unloop all loops */
638}; 639};
639 640
640#if EV_PROTOTYPES 641#if EV_PROTOTYPES
641EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); 642EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
642EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_THROW; /* 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 */
643 644
644/* 645/*
645 * 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
646 * 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
647 * 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.
648 */ 649 */
649EV_API_DECL void ev_ref (EV_P) EV_THROW; 650EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
650EV_API_DECL void ev_unref (EV_P) EV_THROW; 651EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
651 652
652/* 653/*
653 * 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
654 * if timeout is < 0, do wait indefinitely 655 * if timeout is < 0, do wait indefinitely
655 */ 656 */
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; 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;
658
659EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
657 660
658# if EV_FEATURE_API 661# if EV_FEATURE_API
659EV_API_DECL unsigned int ev_iteration (EV_P) EV_THROW; /* number of loop iterations */ 662EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
660EV_API_DECL unsigned int ev_depth (EV_P) EV_THROW; /* #ev_loop enters - #ev_loop leaves */ 663EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
661EV_API_DECL void ev_verify (EV_P) EV_THROW; /* abort if loop data corrupted */ 664EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
662 665
663EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */ 666EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* 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 */ 667EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
665 668
666/* advanced stuff for threading etc. support, see docs */ 669/* advanced stuff for threading etc. support, see docs */
667EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_THROW; 670EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
668EV_API_DECL void *ev_userdata (EV_P) EV_THROW; 671EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
669typedef void (*ev_loop_callback)(EV_P); 672typedef void (*ev_loop_callback)(EV_P);
670EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW; 673EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
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; 674/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
675EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT;
672 676
673EV_API_DECL unsigned int ev_pending_count (EV_P) EV_THROW; /* number of pending events, if any */ 677EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
674EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
675 678
676/* 679/*
677 * stop/start the timer handling. 680 * stop/start the timer handling.
678 */ 681 */
679EV_API_DECL void ev_suspend (EV_P) EV_THROW; 682EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
680EV_API_DECL void ev_resume (EV_P) EV_THROW; 683EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
681#endif 684#endif
682 685
683#endif 686#endif
684 687
685/* these may evaluate ev multiple times, and the other arguments at most once */ 688/* these may evaluate ev multiple times, and the other arguments at most once */
… …
689 ((ev_watcher *)(void *)(ev))->pending = 0; \ 692 ((ev_watcher *)(void *)(ev))->pending = 0; \
690 ev_set_priority ((ev), 0); \ 693 ev_set_priority ((ev), 0); \
691 ev_set_cb ((ev), cb_); \ 694 ev_set_cb ((ev), cb_); \
692} while (0) 695} while (0)
693 696
697#define ev_io_modify(ev,events_) do { (ev)->events = (ev)->events & EV__IOFDSET | (events_); } while (0)
694#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) 698#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
695#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) 699#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
696#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) 700#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
697#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 701#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
698#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) 702#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
… …
720#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 724#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
721 725
722#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 726#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
723#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 727#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
724 728
725#define ev_cb(ev) (ev)->cb /* rw */ 729#define ev_cb_(ev) (ev)->cb /* rw */
730#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
726 731
727#if EV_MINPRI == EV_MAXPRI 732#if EV_MINPRI == EV_MAXPRI
728# define ev_priority(ev) ((ev), EV_MINPRI) 733# define ev_priority(ev) ((ev), EV_MINPRI)
729# define ev_set_priority(ev,pri) ((ev), (pri)) 734# define ev_set_priority(ev,pri) ((ev), (pri))
730#else 735#else
… …
733#endif 738#endif
734 739
735#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) 740#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
736 741
737#ifndef ev_set_cb 742#ifndef ev_set_cb
738# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 743/* memmove is used here to avoid strict aliasing violations, and hopefully is optimized out by any reasonable compiler */
744# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
739#endif 745#endif
740 746
741/* 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 */
742/* stopping (disabling, deleting) a watcher does nothing unless it's already running */ 748/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
743#if EV_PROTOTYPES 749#if EV_PROTOTYPES
744 750
745/* feeds an event into a watcher as if the event actually occurred */ 751/* feeds an event into a watcher as if the event actually occurred */
746/* accepts any ev_watcher type */ 752/* accepts any ev_watcher type */
747EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_THROW; 753EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
748EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW; 754EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
749#if EV_SIGNAL_ENABLE 755#if EV_SIGNAL_ENABLE
750EV_API_DECL void ev_feed_signal (int signum) EV_THROW; 756EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
751EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_THROW; 757EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
752#endif 758#endif
753EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); 759EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
754EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_THROW; 760EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
755 761
756EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_THROW; 762EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
757EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_THROW; 763EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
758 764
759EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_THROW; 765EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
760EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_THROW; 766EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
761/* 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 */
762EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_THROW; 768EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
763/* return remaining time */ 769/* return remaining time */
764EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW; 770EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
765 771
766#if EV_PERIODIC_ENABLE 772#if EV_PERIODIC_ENABLE
767EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW; 773EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
768EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW; 774EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
769EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW; 775EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
770#endif 776#endif
771 777
772/* only supported in the default loop */ 778/* only supported in the default loop */
773#if EV_SIGNAL_ENABLE 779#if EV_SIGNAL_ENABLE
774EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_THROW; 780EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
775EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_THROW; 781EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
776#endif 782#endif
777 783
778/* only supported in the default loop */ 784/* only supported in the default loop */
779# if EV_CHILD_ENABLE 785# if EV_CHILD_ENABLE
780EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_THROW; 786EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
781EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_THROW; 787EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
782# endif 788# endif
783 789
784# if EV_STAT_ENABLE 790# if EV_STAT_ENABLE
785EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_THROW; 791EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
786EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_THROW; 792EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
787EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_THROW; 793EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
788# endif 794# endif
789 795
790# if EV_IDLE_ENABLE 796# if EV_IDLE_ENABLE
791EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_THROW; 797EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
792EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_THROW; 798EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
793# endif 799# endif
794 800
795#if EV_PREPARE_ENABLE 801#if EV_PREPARE_ENABLE
796EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW; 802EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
797EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW; 803EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
798#endif 804#endif
799 805
800#if EV_CHECK_ENABLE 806#if EV_CHECK_ENABLE
801EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_THROW; 807EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
802EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_THROW; 808EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
803#endif 809#endif
804 810
805# if EV_FORK_ENABLE 811# if EV_FORK_ENABLE
806EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_THROW; 812EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
807EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_THROW; 813EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
808# endif 814# endif
809 815
810# if EV_CLEANUP_ENABLE 816# if EV_CLEANUP_ENABLE
811EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW; 817EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
812EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW; 818EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
813# endif 819# endif
814 820
815# if EV_EMBED_ENABLE 821# if EV_EMBED_ENABLE
816/* only supported when loop to be embedded is in fact embeddable */ 822/* only supported when loop to be embedded is in fact embeddable */
817EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_THROW; 823EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
818EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_THROW; 824EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
819EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW; 825EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
820# endif 826# endif
821 827
822# if EV_ASYNC_ENABLE 828# if EV_ASYNC_ENABLE
823EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_THROW; 829EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
824EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_THROW; 830EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
825EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_THROW; 831EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
826# endif 832# endif
827 833
828#if EV_COMPAT3 834#if EV_COMPAT3
829 #define EVLOOP_NONBLOCK EVRUN_NOWAIT 835 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
830 #define EVLOOP_ONESHOT EVRUN_ONCE 836 #define EVLOOP_ONESHOT EVRUN_ONCE

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