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Comparing libev/ev.h (file contents):
Revision 1.123 by root, Wed Jul 15 16:58:53 2009 UTC vs.
Revision 1.134 by root, Tue Mar 16 00:20:17 2010 UTC

1/* 1/*
2 * libev native API header 2 * libev native API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010 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 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifndef EV_H__ 40#ifndef EV_H_
41#define EV_H__ 41#define EV_H_
42 42
43#ifdef __cplusplus 43#ifdef __cplusplus
44extern "C" { 44extern "C" {
45#endif 45#endif
46 46
47typedef double ev_tstamp; 47/*****************************************************************************/
48
49#ifndef EV_FEATURES
50# define EV_FEATURES 0x3f
51#endif
52
53#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
54#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
55#define EV_FEATURE_API ((EV_FEATURES) & 4)
56#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 8)
57#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 16)
58#define EV_FEATURE_OS ((EV_FEATURES) & 32)
48 59
49/* these priorities are inclusive, higher priorities will be called earlier */ 60/* these priorities are inclusive, higher priorities will be called earlier */
50#ifndef EV_MINPRI 61#ifndef EV_MINPRI
51# define EV_MINPRI -2 62# define EV_MINPRI (EV_FEATURE_API ? -2 : 0)
52#endif 63#endif
53#ifndef EV_MAXPRI 64#ifndef EV_MAXPRI
54# define EV_MAXPRI +2 65# define EV_MAXPRI (EV_FEATURE_API ? +2 : 0)
55#endif 66#endif
56 67
57#ifndef EV_MULTIPLICITY 68#ifndef EV_MULTIPLICITY
58# define EV_MULTIPLICITY 1 69# define EV_MULTIPLICITY EV_FEATURE_API
59#endif 70#endif
60 71
61#ifndef EV_PERIODIC_ENABLE 72#ifndef EV_PERIODIC_ENABLE
62# define EV_PERIODIC_ENABLE 1 73# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
63#endif 74#endif
64 75
65#ifndef EV_STAT_ENABLE 76#ifndef EV_STAT_ENABLE
66# define EV_STAT_ENABLE 1 77# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
78#endif
79
80#ifndef EV_PREPARE_ENABLE
81# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
82#endif
83
84#ifndef EV_CHECK_ENABLE
85# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
67#endif 86#endif
68 87
69#ifndef EV_IDLE_ENABLE 88#ifndef EV_IDLE_ENABLE
70# define EV_IDLE_ENABLE 1 89# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
71#endif 90#endif
72 91
73#ifndef EV_FORK_ENABLE 92#ifndef EV_FORK_ENABLE
93# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
94#endif
95
96#ifndef EV_SIGNAL_ENABLE
97# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
98#endif
99
100#ifndef EV_CHILD_ENABLE
101# ifdef _WIN32
74# define EV_FORK_ENABLE 1 102# define EV_CHILD_ENABLE 0
103# else
104# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
105#endif
106#endif
107
108#ifndef EV_ASYNC_ENABLE
109# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
75#endif 110#endif
76 111
77#ifndef EV_EMBED_ENABLE 112#ifndef EV_EMBED_ENABLE
78# define EV_EMBED_ENABLE 1 113# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
79#endif
80
81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1
83#endif 114#endif
84 115
85#ifndef EV_WALK_ENABLE 116#ifndef EV_WALK_ENABLE
86# define EV_WALK_ENABLE 0 /* not yet */ 117# define EV_WALK_ENABLE 0 /* not yet */
87#endif 118#endif
119
120/*****************************************************************************/
121
122#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
123# undef EV_SIGNAL_ENABLE
124# define EV_SIGNAL_ENABLE 1
125#endif
126
127/*****************************************************************************/
128
129#if !EV_FEATURE_CODE && !defined (NDEBUG)
130# define NDEBUG 1
131# include <assert.h>
132#endif
133
134typedef double ev_tstamp;
88 135
89#ifndef EV_ATOMIC_T 136#ifndef EV_ATOMIC_T
90# include <signal.h> 137# include <signal.h>
91# define EV_ATOMIC_T sig_atomic_t volatile 138# define EV_ATOMIC_T sig_atomic_t volatile
92#endif 139#endif
93
94/*****************************************************************************/
95 140
96#if EV_STAT_ENABLE 141#if EV_STAT_ENABLE
97# ifdef _WIN32 142# ifdef _WIN32
98# include <time.h> 143# include <time.h>
99# include <sys/types.h> 144# include <sys/types.h>
… …
161#ifndef EV_PROTOTYPES 206#ifndef EV_PROTOTYPES
162# define EV_PROTOTYPES 1 207# define EV_PROTOTYPES 1
163#endif 208#endif
164 209
165#define EV_VERSION_MAJOR 3 210#define EV_VERSION_MAJOR 3
166#define EV_VERSION_MINOR 7 211#define EV_VERSION_MINOR 9
167 212
168#ifndef EV_CB_DECLARE 213#ifndef EV_CB_DECLARE
169# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 214# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
170#endif 215#endif
171#ifndef EV_CB_INVOKE 216#ifndef EV_CB_INVOKE
… …
363 EV_WATCHER (ev_async) 408 EV_WATCHER (ev_async)
364 409
365 EV_ATOMIC_T sent; /* private */ 410 EV_ATOMIC_T sent; /* private */
366} ev_async; 411} ev_async;
367 412
368# define ev_async_pending(w) ((w)->sent + 0) 413# define ev_async_pending(w) (+(w)->sent)
369#endif 414#endif
370 415
371/* the presence of this union forces similar struct layout */ 416/* the presence of this union forces similar struct layout */
372union ev_any_watcher 417union ev_any_watcher
373{ 418{
… …
402/* the default */ 447/* the default */
403#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ 448#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
404/* flag bits */ 449/* flag bits */
405#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ 450#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
406#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ 451#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
452/* debugging/feature disable */
453#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
454#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */
455#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */
407/* method bits to be ored together */ 456/* method bits to be ored together */
408#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ 457#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
409#define EVBACKEND_POLL 0x00000002U /* !win */ 458#define EVBACKEND_POLL 0x00000002U /* !win */
410#define EVBACKEND_EPOLL 0x00000004U /* linux */ 459#define EVBACKEND_EPOLL 0x00000004U /* linux */
411#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ 460#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
412#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ 461#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
413#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ 462#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
463#define EVBACKEND_ALL 0x0000003FU
414 464
415#if EV_PROTOTYPES 465#if EV_PROTOTYPES
416int ev_version_major (void); 466int ev_version_major (void);
417int ev_version_minor (void); 467int ev_version_minor (void);
418 468
… …
537 * convenience function, wait for a single event, without registering an event watcher 587 * convenience function, wait for a single event, without registering an event watcher
538 * if timeout is < 0, do wait indefinitely 588 * if timeout is < 0, do wait indefinitely
539 */ 589 */
540void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 590void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
541 591
542# if EV_MINIMAL < 2 592# if EV_FEATURE_API
543unsigned int ev_loop_count (EV_P); /* number of loop iterations */ 593unsigned int ev_loop_count (EV_P); /* number of loop iterations */
544unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 594unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
545void ev_loop_verify (EV_P); /* abort if loop data corrupted */ 595void ev_loop_verify (EV_P); /* abort if loop data corrupted */
546 596
547void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 597void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
… …
607 657
608#if EV_MINPRI == EV_MAXPRI 658#if EV_MINPRI == EV_MAXPRI
609# define ev_priority(ev) ((ev), EV_MINPRI) 659# define ev_priority(ev) ((ev), EV_MINPRI)
610# define ev_set_priority(ev,pri) ((ev), (pri)) 660# define ev_set_priority(ev,pri) ((ev), (pri))
611#else 661#else
612# define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) 662# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
613# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) 663# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
614#endif 664#endif
615 665
616#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 666#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
617 667
618#ifndef ev_set_cb 668#ifndef ev_set_cb
619# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 669# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
620#endif 670#endif
621 671
… …
625 675
626/* feeds an event into a watcher as if the event actually occured */ 676/* feeds an event into a watcher as if the event actually occured */
627/* accepts any ev_watcher type */ 677/* accepts any ev_watcher type */
628void ev_feed_event (EV_P_ void *w, int revents); 678void ev_feed_event (EV_P_ void *w, int revents);
629void ev_feed_fd_event (EV_P_ int fd, int revents); 679void ev_feed_fd_event (EV_P_ int fd, int revents);
680#if EV_SIGNAL_ENABLE
630void ev_feed_signal_event (EV_P_ int signum); 681void ev_feed_signal_event (EV_P_ int signum);
682#endif
631void ev_invoke (EV_P_ void *w, int revents); 683void ev_invoke (EV_P_ void *w, int revents);
632int ev_clear_pending (EV_P_ void *w); 684int ev_clear_pending (EV_P_ void *w);
633 685
634void ev_io_start (EV_P_ ev_io *w); 686void ev_io_start (EV_P_ ev_io *w);
635void ev_io_stop (EV_P_ ev_io *w); 687void ev_io_stop (EV_P_ ev_io *w);
… …
646void ev_periodic_stop (EV_P_ ev_periodic *w); 698void ev_periodic_stop (EV_P_ ev_periodic *w);
647void ev_periodic_again (EV_P_ ev_periodic *w); 699void ev_periodic_again (EV_P_ ev_periodic *w);
648#endif 700#endif
649 701
650/* only supported in the default loop */ 702/* only supported in the default loop */
703#if EV_SIGNAL_ENABLE
651void ev_signal_start (EV_P_ ev_signal *w); 704void ev_signal_start (EV_P_ ev_signal *w);
652void ev_signal_stop (EV_P_ ev_signal *w); 705void ev_signal_stop (EV_P_ ev_signal *w);
706#endif
653 707
654/* only supported in the default loop */ 708/* only supported in the default loop */
709# if EV_CHILD_ENABLE
655void ev_child_start (EV_P_ ev_child *w); 710void ev_child_start (EV_P_ ev_child *w);
656void ev_child_stop (EV_P_ ev_child *w); 711void ev_child_stop (EV_P_ ev_child *w);
712# endif
657 713
658# if EV_STAT_ENABLE 714# if EV_STAT_ENABLE
659void ev_stat_start (EV_P_ ev_stat *w); 715void ev_stat_start (EV_P_ ev_stat *w);
660void ev_stat_stop (EV_P_ ev_stat *w); 716void ev_stat_stop (EV_P_ ev_stat *w);
661void ev_stat_stat (EV_P_ ev_stat *w); 717void ev_stat_stat (EV_P_ ev_stat *w);
… …
664# if EV_IDLE_ENABLE 720# if EV_IDLE_ENABLE
665void ev_idle_start (EV_P_ ev_idle *w); 721void ev_idle_start (EV_P_ ev_idle *w);
666void ev_idle_stop (EV_P_ ev_idle *w); 722void ev_idle_stop (EV_P_ ev_idle *w);
667# endif 723# endif
668 724
725#if EV_PREPARE_ENABLE
669void ev_prepare_start (EV_P_ ev_prepare *w); 726void ev_prepare_start (EV_P_ ev_prepare *w);
670void ev_prepare_stop (EV_P_ ev_prepare *w); 727void ev_prepare_stop (EV_P_ ev_prepare *w);
728#endif
671 729
730#if EV_CHECK_ENABLE
672void ev_check_start (EV_P_ ev_check *w); 731void ev_check_start (EV_P_ ev_check *w);
673void ev_check_stop (EV_P_ ev_check *w); 732void ev_check_stop (EV_P_ ev_check *w);
733#endif
674 734
675# if EV_FORK_ENABLE 735# if EV_FORK_ENABLE
676void ev_fork_start (EV_P_ ev_fork *w); 736void ev_fork_start (EV_P_ ev_fork *w);
677void ev_fork_stop (EV_P_ ev_fork *w); 737void ev_fork_stop (EV_P_ ev_fork *w);
678# endif 738# endif

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