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Comparing libev/ev.h (file contents):
Revision 1.157 by root, Mon Jan 10 01:58:55 2011 UTC vs.
Revision 1.166 by root, Mon Apr 2 23:46:11 2012 UTC

1/* 1/*
2 * libev native API header 2 * libev native API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
54#ifndef EV_COMPAT3 54#ifndef EV_COMPAT3
55# define EV_COMPAT3 1 55# define EV_COMPAT3 1
56#endif 56#endif
57 57
58#ifndef EV_FEATURES 58#ifndef EV_FEATURES
59# if defined __OPTIMIZE_SIZE__
60# define EV_FEATURES 0x7c
61# else
59# define EV_FEATURES 0x7f 62# define EV_FEATURES 0x7f
63# endif
60#endif 64#endif
61 65
62#define EV_FEATURE_CODE ((EV_FEATURES) & 1) 66#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
63#define EV_FEATURE_DATA ((EV_FEATURES) & 2) 67#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
64#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) 68#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
… …
183# define EV_INLINE static inline 187# define EV_INLINE static inline
184#else 188#else
185# define EV_INLINE static 189# define EV_INLINE static
186#endif 190#endif
187 191
192#ifdef EV_API_STATIC
193# define EV_API_DECL static
194#else
195# define EV_API_DECL extern
196#endif
197
188/* EV_PROTOTYPES can be sued to switch of prototype declarations */ 198/* EV_PROTOTYPES can be used to switch of prototype declarations */
189#ifndef EV_PROTOTYPES 199#ifndef EV_PROTOTYPES
190# define EV_PROTOTYPES 1 200# define EV_PROTOTYPES 1
191#endif 201#endif
192 202
193/*****************************************************************************/ 203/*****************************************************************************/
194 204
195#define EV_VERSION_MAJOR 4 205#define EV_VERSION_MAJOR 4
196#define EV_VERSION_MINOR 1 206#define EV_VERSION_MINOR 11
197 207
198/* eventmask, revents, events... */ 208/* eventmask, revents, events... */
199enum { 209enum {
200 EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */ 210 EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */
201 EV_NONE = 0x00, /* no events */ 211 EV_NONE = 0x00, /* no events */
… …
506 EVBACKEND_ALL = 0x0000003FU, /* all known backends */ 516 EVBACKEND_ALL = 0x0000003FU, /* all known backends */
507 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ 517 EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
508}; 518};
509 519
510#if EV_PROTOTYPES 520#if EV_PROTOTYPES
511int ev_version_major (void); 521EV_API_DECL int ev_version_major (void);
512int ev_version_minor (void); 522EV_API_DECL int ev_version_minor (void);
513 523
514unsigned int ev_supported_backends (void); 524EV_API_DECL unsigned int ev_supported_backends (void);
515unsigned int ev_recommended_backends (void); 525EV_API_DECL unsigned int ev_recommended_backends (void);
516unsigned int ev_embeddable_backends (void); 526EV_API_DECL unsigned int ev_embeddable_backends (void);
517 527
518ev_tstamp ev_time (void); 528EV_API_DECL ev_tstamp ev_time (void);
519void ev_sleep (ev_tstamp delay); /* sleep for a while */ 529EV_API_DECL void ev_sleep (ev_tstamp delay); /* sleep for a while */
520 530
521/* Sets the allocation function to use, works like realloc. 531/* Sets the allocation function to use, works like realloc.
522 * It is used to allocate and free memory. 532 * It is used to allocate and free memory.
523 * If it returns zero when memory needs to be allocated, the library might abort 533 * If it returns zero when memory needs to be allocated, the library might abort
524 * or take some potentially destructive action. 534 * or take some potentially destructive action.
525 * The default is your system realloc function. 535 * The default is your system realloc function.
526 */ 536 */
527void ev_set_allocator (void *(*cb)(void *ptr, long size)); 537EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size));
528 538
529/* set the callback function to call on a 539/* set the callback function to call on a
530 * retryable syscall error 540 * retryable syscall error
531 * (such as failed select, poll, epoll_wait) 541 * (such as failed select, poll, epoll_wait)
532 */ 542 */
533void ev_set_syserr_cb (void (*cb)(const char *msg)); 543EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg));
534 544
535#if EV_MULTIPLICITY 545#if EV_MULTIPLICITY
536 546
537/* the default loop is the only one that handles signals and child watchers */ 547/* the default loop is the only one that handles signals and child watchers */
538/* you can call this as often as you like */ 548/* you can call this as often as you like */
539struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); 549EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
550
551#ifdef EV_API_STATIC
552EV_API_DECL struct ev_loop *ev_default_loop_ptr;
553#endif
540 554
541EV_INLINE struct ev_loop * 555EV_INLINE struct ev_loop *
542ev_default_loop_uc_ (void) 556ev_default_loop_uc_ (void)
543{ 557{
544 extern struct ev_loop *ev_default_loop_ptr; 558 extern struct ev_loop *ev_default_loop_ptr;
… …
551{ 565{
552 return EV_A == EV_DEFAULT_UC; 566 return EV_A == EV_DEFAULT_UC;
553} 567}
554 568
555/* create and destroy alternative loops that don't handle signals */ 569/* create and destroy alternative loops that don't handle signals */
556struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); 570EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
557 571
558ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 572EV_API_DECL ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
559 573
560#else 574#else
561 575
562int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ 576EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
577
578EV_API_DECL ev_tstamp ev_rt_now;
563 579
564EV_INLINE ev_tstamp 580EV_INLINE ev_tstamp
565ev_now (void) 581ev_now (void)
566{ 582{
567 extern ev_tstamp ev_rt_now;
568
569 return ev_rt_now; 583 return ev_rt_now;
570} 584}
571 585
572/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ 586/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
573EV_INLINE int 587EV_INLINE int
… …
577} 591}
578 592
579#endif /* multiplicity */ 593#endif /* multiplicity */
580 594
581/* destroy event loops, also works for the default loop */ 595/* destroy event loops, also works for the default loop */
582void ev_loop_destroy (EV_P); 596EV_API_DECL void ev_loop_destroy (EV_P);
583 597
584/* this needs to be called after fork, to duplicate the loop */ 598/* this needs to be called after fork, to duplicate the loop */
585/* when you want to re-use it in the child */ 599/* when you want to re-use it in the child */
586/* you can call it in either the parent or the child */ 600/* you can call it in either the parent or the child */
587/* you can actually call it at any time, anywhere :) */ 601/* you can actually call it at any time, anywhere :) */
588void ev_loop_fork (EV_P); 602EV_API_DECL void ev_loop_fork (EV_P);
589 603
590unsigned int ev_backend (EV_P); /* backend in use by loop */ 604EV_API_DECL unsigned int ev_backend (EV_P); /* backend in use by loop */
591 605
592void ev_now_update (EV_P); /* update event loop time */ 606EV_API_DECL void ev_now_update (EV_P); /* update event loop time */
593 607
594#if EV_WALK_ENABLE 608#if EV_WALK_ENABLE
595/* walk (almost) all watchers in the loop of a given type, invoking the */ 609/* walk (almost) all watchers in the loop of a given type, invoking the */
596/* callback on every such watcher. The callback might stop the watcher, */ 610/* callback on every such watcher. The callback might stop the watcher, */
597/* but do nothing else with the loop */ 611/* but do nothing else with the loop */
598void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 612EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
599#endif 613#endif
600 614
601#endif /* prototypes */ 615#endif /* prototypes */
602 616
603/* ev_run flags values */ 617/* ev_run flags values */
… …
612 EVBREAK_ONE = 1, /* unloop once */ 626 EVBREAK_ONE = 1, /* unloop once */
613 EVBREAK_ALL = 2 /* unloop all loops */ 627 EVBREAK_ALL = 2 /* unloop all loops */
614}; 628};
615 629
616#if EV_PROTOTYPES 630#if EV_PROTOTYPES
617void ev_run (EV_P_ int flags EV_CPP (= 0)); 631EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
618void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ 632EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
619 633
620/* 634/*
621 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 635 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
622 * keeps one reference. if you have a long-running watcher you never unregister that 636 * keeps one reference. if you have a long-running watcher you never unregister that
623 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 637 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
624 */ 638 */
625void ev_ref (EV_P); 639EV_API_DECL void ev_ref (EV_P);
626void ev_unref (EV_P); 640EV_API_DECL void ev_unref (EV_P);
627 641
628/* 642/*
629 * convenience function, wait for a single event, without registering an event watcher 643 * convenience function, wait for a single event, without registering an event watcher
630 * if timeout is < 0, do wait indefinitely 644 * if timeout is < 0, do wait indefinitely
631 */ 645 */
632void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 646EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
633 647
634# if EV_FEATURE_API 648# if EV_FEATURE_API
635unsigned int ev_iteration (EV_P); /* number of loop iterations */ 649EV_API_DECL unsigned int ev_iteration (EV_P); /* number of loop iterations */
636unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 650EV_API_DECL unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
637void ev_verify (EV_P); /* abort if loop data corrupted */ 651EV_API_DECL void ev_verify (EV_P); /* abort if loop data corrupted */
638 652
639void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 653EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
640void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 654EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
641 655
642/* advanced stuff for threading etc. support, see docs */ 656/* advanced stuff for threading etc. support, see docs */
643void ev_set_userdata (EV_P_ void *data); 657EV_API_DECL void ev_set_userdata (EV_P_ void *data);
644void *ev_userdata (EV_P); 658EV_API_DECL void *ev_userdata (EV_P);
645void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); 659EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
646void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); 660EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
647 661
648unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ 662EV_API_DECL unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
649void ev_invoke_pending (EV_P); /* invoke all pending watchers */ 663EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
650 664
651/* 665/*
652 * stop/start the timer handling. 666 * stop/start the timer handling.
653 */ 667 */
654void ev_suspend (EV_P); 668EV_API_DECL void ev_suspend (EV_P);
655void ev_resume (EV_P); 669EV_API_DECL void ev_resume (EV_P);
656#endif 670#endif
657 671
658#endif 672#endif
659 673
660/* these may evaluate ev multiple times, and the other arguments at most once */ 674/* these may evaluate ev multiple times, and the other arguments at most once */
… …
715 729
716/* stopping (enabling, adding) a watcher does nothing if it is already running */ 730/* stopping (enabling, adding) a watcher does nothing if it is already running */
717/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 731/* stopping (disabling, deleting) a watcher does nothing unless its already running */
718#if EV_PROTOTYPES 732#if EV_PROTOTYPES
719 733
720/* feeds an event into a watcher as if the event actually occured */ 734/* feeds an event into a watcher as if the event actually occurred */
721/* accepts any ev_watcher type */ 735/* accepts any ev_watcher type */
722void ev_feed_event (EV_P_ void *w, int revents); 736EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents);
723void ev_feed_fd_event (EV_P_ int fd, int revents); 737EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents);
724#if EV_SIGNAL_ENABLE 738#if EV_SIGNAL_ENABLE
725void ev_feed_signal (int signum); 739EV_API_DECL void ev_feed_signal (int signum);
726void ev_feed_signal_event (EV_P_ int signum); 740EV_API_DECL void ev_feed_signal_event (EV_P_ int signum);
727#endif 741#endif
728void ev_invoke (EV_P_ void *w, int revents); 742EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
729int ev_clear_pending (EV_P_ void *w); 743EV_API_DECL int ev_clear_pending (EV_P_ void *w);
730 744
731void ev_io_start (EV_P_ ev_io *w); 745EV_API_DECL void ev_io_start (EV_P_ ev_io *w);
732void ev_io_stop (EV_P_ ev_io *w); 746EV_API_DECL void ev_io_stop (EV_P_ ev_io *w);
733 747
734void ev_timer_start (EV_P_ ev_timer *w); 748EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w);
735void ev_timer_stop (EV_P_ ev_timer *w); 749EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w);
736/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 750/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
737void ev_timer_again (EV_P_ ev_timer *w); 751EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w);
738/* return remaining time */ 752/* return remaining time */
739ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); 753EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
740 754
741#if EV_PERIODIC_ENABLE 755#if EV_PERIODIC_ENABLE
742void ev_periodic_start (EV_P_ ev_periodic *w); 756EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w);
743void ev_periodic_stop (EV_P_ ev_periodic *w); 757EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w);
744void ev_periodic_again (EV_P_ ev_periodic *w); 758EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w);
745#endif 759#endif
746 760
747/* only supported in the default loop */ 761/* only supported in the default loop */
748#if EV_SIGNAL_ENABLE 762#if EV_SIGNAL_ENABLE
749void ev_signal_start (EV_P_ ev_signal *w); 763EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w);
750void ev_signal_stop (EV_P_ ev_signal *w); 764EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w);
751#endif 765#endif
752 766
753/* only supported in the default loop */ 767/* only supported in the default loop */
754# if EV_CHILD_ENABLE 768# if EV_CHILD_ENABLE
755void ev_child_start (EV_P_ ev_child *w); 769EV_API_DECL void ev_child_start (EV_P_ ev_child *w);
756void ev_child_stop (EV_P_ ev_child *w); 770EV_API_DECL void ev_child_stop (EV_P_ ev_child *w);
757# endif 771# endif
758 772
759# if EV_STAT_ENABLE 773# if EV_STAT_ENABLE
760void ev_stat_start (EV_P_ ev_stat *w); 774EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w);
761void ev_stat_stop (EV_P_ ev_stat *w); 775EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w);
762void ev_stat_stat (EV_P_ ev_stat *w); 776EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w);
763# endif 777# endif
764 778
765# if EV_IDLE_ENABLE 779# if EV_IDLE_ENABLE
766void ev_idle_start (EV_P_ ev_idle *w); 780EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w);
767void ev_idle_stop (EV_P_ ev_idle *w); 781EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w);
768# endif 782# endif
769 783
770#if EV_PREPARE_ENABLE 784#if EV_PREPARE_ENABLE
771void ev_prepare_start (EV_P_ ev_prepare *w); 785EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w);
772void ev_prepare_stop (EV_P_ ev_prepare *w); 786EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w);
773#endif 787#endif
774 788
775#if EV_CHECK_ENABLE 789#if EV_CHECK_ENABLE
776void ev_check_start (EV_P_ ev_check *w); 790EV_API_DECL void ev_check_start (EV_P_ ev_check *w);
777void ev_check_stop (EV_P_ ev_check *w); 791EV_API_DECL void ev_check_stop (EV_P_ ev_check *w);
778#endif 792#endif
779 793
780# if EV_FORK_ENABLE 794# if EV_FORK_ENABLE
781void ev_fork_start (EV_P_ ev_fork *w); 795EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w);
782void ev_fork_stop (EV_P_ ev_fork *w); 796EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w);
783# endif 797# endif
784 798
785# if EV_CLEANUP_ENABLE 799# if EV_CLEANUP_ENABLE
786void ev_cleanup_start (EV_P_ ev_cleanup *w); 800EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w);
787void ev_cleanup_stop (EV_P_ ev_cleanup *w); 801EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w);
788# endif 802# endif
789 803
790# if EV_EMBED_ENABLE 804# if EV_EMBED_ENABLE
791/* only supported when loop to be embedded is in fact embeddable */ 805/* only supported when loop to be embedded is in fact embeddable */
792void ev_embed_start (EV_P_ ev_embed *w); 806EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w);
793void ev_embed_stop (EV_P_ ev_embed *w); 807EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w);
794void ev_embed_sweep (EV_P_ ev_embed *w); 808EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w);
795# endif 809# endif
796 810
797# if EV_ASYNC_ENABLE 811# if EV_ASYNC_ENABLE
798void ev_async_start (EV_P_ ev_async *w); 812EV_API_DECL void ev_async_start (EV_P_ ev_async *w);
799void ev_async_stop (EV_P_ ev_async *w); 813EV_API_DECL void ev_async_stop (EV_P_ ev_async *w);
800void ev_async_send (EV_P_ ev_async *w); 814EV_API_DECL void ev_async_send (EV_P_ ev_async *w);
801# endif 815# endif
802 816
803#if EV_COMPAT3 817#if EV_COMPAT3
804 #define EVLOOP_NONBLOCK EVRUN_NOWAIT 818 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
805 #define EVLOOP_ONESHOT EVRUN_ONCE 819 #define EVLOOP_ONESHOT EVRUN_ONCE

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