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Comparing libev/ev.h (file contents):
Revision 1.112 by root, Sat Mar 28 22:17:17 2009 UTC vs.
Revision 1.145 by root, Fri Oct 22 06:09:26 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
47/*****************************************************************************/
48
49/* pre-4.0 compatibility */
50#ifndef EV_COMPAT3
51# define EV_COMPAT3 1
52#endif
53
54#ifndef EV_FEATURES
55# define EV_FEATURES 0x7f
56#endif
57
58#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
59#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
60#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
61#define EV_FEATURE_API ((EV_FEATURES) & 8)
62#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
63#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
64#define EV_FEATURE_OS ((EV_FEATURES) & 64)
65
66/* these priorities are inclusive, higher priorities will be invoked earlier */
67#ifndef EV_MINPRI
68# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
69#endif
70#ifndef EV_MAXPRI
71# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
72#endif
73
74#ifndef EV_MULTIPLICITY
75# define EV_MULTIPLICITY EV_FEATURE_CONFIG
76#endif
77
78#ifndef EV_PERIODIC_ENABLE
79# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
80#endif
81
82#ifndef EV_STAT_ENABLE
83# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
84#endif
85
86#ifndef EV_PREPARE_ENABLE
87# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
88#endif
89
90#ifndef EV_CHECK_ENABLE
91# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
92#endif
93
94#ifndef EV_IDLE_ENABLE
95# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
96#endif
97
98#ifndef EV_FORK_ENABLE
99# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
100#endif
101
102#ifndef EV_SIGNAL_ENABLE
103# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
104#endif
105
106#ifndef EV_CHILD_ENABLE
107# ifdef _WIN32
108# define EV_CHILD_ENABLE 0
109# else
110# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
111#endif
112#endif
113
114#ifndef EV_ASYNC_ENABLE
115# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
116#endif
117
118#ifndef EV_EMBED_ENABLE
119# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
120#endif
121
122#ifndef EV_WALK_ENABLE
123# define EV_WALK_ENABLE 0 /* not yet */
124#endif
125
126/*****************************************************************************/
127
128#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
129# undef EV_SIGNAL_ENABLE
130# define EV_SIGNAL_ENABLE 1
131#endif
132
133/*****************************************************************************/
134
47typedef double ev_tstamp; 135typedef double ev_tstamp;
48
49/* these priorities are inclusive, higher priorities will be called earlier */
50#ifndef EV_MINPRI
51# define EV_MINPRI -2
52#endif
53#ifndef EV_MAXPRI
54# define EV_MAXPRI +2
55#endif
56
57#ifndef EV_MULTIPLICITY
58# define EV_MULTIPLICITY 1
59#endif
60
61#ifndef EV_PERIODIC_ENABLE
62# define EV_PERIODIC_ENABLE 1
63#endif
64
65#ifndef EV_STAT_ENABLE
66# define EV_STAT_ENABLE 1
67#endif
68
69#ifndef EV_IDLE_ENABLE
70# define EV_IDLE_ENABLE 1
71#endif
72
73#ifndef EV_FORK_ENABLE
74# define EV_FORK_ENABLE 1
75#endif
76
77#ifndef EV_EMBED_ENABLE
78# define EV_EMBED_ENABLE 1
79#endif
80
81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1
83#endif
84 136
85#ifndef EV_ATOMIC_T 137#ifndef EV_ATOMIC_T
86# include <signal.h> 138# include <signal.h>
87# define EV_ATOMIC_T sig_atomic_t volatile 139# define EV_ATOMIC_T sig_atomic_t volatile
88#endif 140#endif
89
90/*****************************************************************************/
91 141
92#if EV_STAT_ENABLE 142#if EV_STAT_ENABLE
93# ifdef _WIN32 143# ifdef _WIN32
94# include <time.h> 144# include <time.h>
95# include <sys/types.h> 145# include <sys/types.h>
96# endif 146# endif
97# include <sys/stat.h> 147# include <sys/stat.h>
98#endif 148#endif
99 149
150#ifdef __cplusplus
151# define EV_DEFARG(x) = x
152#else
153# define EV_DEFARG(x)
154#endif
155
100/* support multiple event loops? */ 156/* support multiple event loops? */
101#if EV_MULTIPLICITY 157#if EV_MULTIPLICITY
102struct ev_loop; 158struct ev_loop;
103# define EV_P struct ev_loop *loop 159# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
104# define EV_P_ EV_P, 160# define EV_P_ EV_P, /* a loop as first of multiple parameters */
105# define EV_A loop 161# define EV_A loop /* a loop as sole argument to a function call */
106# define EV_A_ EV_A, 162# define EV_A_ EV_A, /* a loop as first of multiple arguments */
107# define EV_DEFAULT_UC ev_default_loop_uc () 163# define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */
108# define EV_DEFAULT_UC_ EV_DEFAULT_UC, 164# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
109# define EV_DEFAULT ev_default_loop (0) 165# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
110# define EV_DEFAULT_ EV_DEFAULT, 166# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
167# define EV_PDEF EV_P EV_DEFARG (EV_DEFAULT_UC) /* EV_P, but with default argument in C++ */
111#else 168#else
112# define EV_P void 169# define EV_P void
113# define EV_P_ 170# define EV_P_
114# define EV_A 171# define EV_A
115# define EV_A_ 172# define EV_A_
116# define EV_DEFAULT 173# define EV_DEFAULT
117# define EV_DEFAULT_ 174# define EV_DEFAULT_
118# define EV_DEFAULT_UC 175# define EV_DEFAULT_UC
119# define EV_DEFAULT_UC_ 176# define EV_DEFAULT_UC_
177# define EV_PDEF EV_P
120# undef EV_EMBED_ENABLE 178# undef EV_EMBED_ENABLE
121#endif 179#endif
122 180
123#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 181#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
124# define EV_INLINE static inline 182# define EV_INLINE static inline
125#else 183#else
126# define EV_INLINE static 184# define EV_INLINE static
127#endif 185#endif
128 186
187#ifndef EV_PROTOTYPES
188# define EV_PROTOTYPES 1
189#endif
190
129/*****************************************************************************/ 191/*****************************************************************************/
130 192
193#define EV_VERSION_MAJOR 4
194#define EV_VERSION_MINOR 0
195
131/* eventmask, revents, events... */ 196/* eventmask, revents, events... */
197enum {
132#define EV_UNDEF -1 /* guaranteed to be invalid */ 198 EV_UNDEF = -1, /* guaranteed to be invalid */
133#define EV_NONE 0x00 /* no events */ 199 EV_NONE = 0x00, /* no events */
134#define EV_READ 0x01 /* ev_io detected read will not block */ 200 EV_READ = 0x01, /* ev_io detected read will not block */
135#define EV_WRITE 0x02 /* ev_io detected write will not block */ 201 EV_WRITE = 0x02, /* ev_io detected write will not block */
136#define EV__IOFDSET 0x80 /* internal use only */ 202 EV__IOFDSET = 0x80, /* internal use only */
137#define EV_IO EV_READ /* alias for type-detection */ 203 EV_IO = EV_READ, /* alias for type-detection */
138#define EV_TIMEOUT 0x00000100 /* timer timed out */ 204 EV_TIMER = 0x00000100, /* timer timed out */
139#define EV_TIMER EV_TIMEOUT /* alias for type-detection */ 205#if EV_COMPAT3
206 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
207#endif
140#define EV_PERIODIC 0x00000200 /* periodic timer timed out */ 208 EV_PERIODIC = 0x00000200, /* periodic timer timed out */
141#define EV_SIGNAL 0x00000400 /* signal was received */ 209 EV_SIGNAL = 0x00000400, /* signal was received */
142#define EV_CHILD 0x00000800 /* child/pid had status change */ 210 EV_CHILD = 0x00000800, /* child/pid had status change */
143#define EV_STAT 0x00001000 /* stat data changed */ 211 EV_STAT = 0x00001000, /* stat data changed */
144#define EV_IDLE 0x00002000 /* event loop is idling */ 212 EV_IDLE = 0x00002000, /* event loop is idling */
145#define EV_PREPARE 0x00004000 /* event loop about to poll */ 213 EV_PREPARE = 0x00004000, /* event loop about to poll */
146#define EV_CHECK 0x00008000 /* event loop finished poll */ 214 EV_CHECK = 0x00008000, /* event loop finished poll */
147#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 215 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
148#define EV_FORK 0x00020000 /* event loop resumed in child */ 216 EV_FORK = 0x00020000, /* event loop resumed in child */
149#define EV_ASYNC 0x00040000 /* async intra-loop signal */ 217 EV_ASYNC = 0x00040000, /* async intra-loop signal */
218 EV_CUSTOM = 0x01000000, /* for use by user code */
150#define EV_ERROR 0x80000000 /* sent when an error occurs */ 219 EV_ERROR = 0x80000000 /* sent when an error occurs */
220};
151 221
152/* can be used to add custom fields to all watchers, while losing binary compatibility */ 222/* can be used to add custom fields to all watchers, while losing binary compatibility */
153#ifndef EV_COMMON 223#ifndef EV_COMMON
154# define EV_COMMON void *data; 224# define EV_COMMON void *data;
155#endif 225#endif
156#ifndef EV_PROTOTYPES
157# define EV_PROTOTYPES 1
158#endif
159
160#define EV_VERSION_MAJOR 3
161#define EV_VERSION_MINOR 0
162 226
163#ifndef EV_CB_DECLARE 227#ifndef EV_CB_DECLARE
164# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 228# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
165#endif 229#endif
166#ifndef EV_CB_INVOKE 230#ifndef EV_CB_INVOKE
167# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) 231# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
168#endif 232#endif
233
234/* not official, do not use */
235#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
169 236
170/* 237/*
171 * struct member types: 238 * struct member types:
172 * private: you may look at them, but not change them, 239 * private: you may look at them, but not change them,
173 * and they might not mean anything to you. 240 * and they might not mean anything to you.
… …
182 * or simply 1 for watchers that aren't in some array. 249 * or simply 1 for watchers that aren't in some array.
183 * pending is either 0, in which case the watcher isn't, 250 * pending is either 0, in which case the watcher isn't,
184 * or the array index + 1 in the pendings array. 251 * or the array index + 1 in the pendings array.
185 */ 252 */
186 253
254#if EV_MINPRI == EV_MAXPRI
255# define EV_DECL_PRIORITY
256#elif !defined (EV_DECL_PRIORITY)
257# define EV_DECL_PRIORITY int priority;
258#endif
259
187/* shared by all watchers */ 260/* shared by all watchers */
188#define EV_WATCHER(type) \ 261#define EV_WATCHER(type) \
189 int active; /* private */ \ 262 int active; /* private */ \
190 int pending; /* private */ \ 263 int pending; /* private */ \
191 int priority; /* private */ \ 264 EV_DECL_PRIORITY /* private */ \
192 EV_COMMON /* rw */ \ 265 EV_COMMON /* rw */ \
193 EV_CB_DECLARE (type) /* private */ 266 EV_CB_DECLARE (type) /* private */
194 267
195#define EV_WATCHER_LIST(type) \ 268#define EV_WATCHER_LIST(type) \
196 EV_WATCHER (type) \ 269 EV_WATCHER (type) \
… …
352 EV_WATCHER (ev_async) 425 EV_WATCHER (ev_async)
353 426
354 EV_ATOMIC_T sent; /* private */ 427 EV_ATOMIC_T sent; /* private */
355} ev_async; 428} ev_async;
356 429
357# define ev_async_pending(w) ((w)->sent + 0) 430# define ev_async_pending(w) (+(w)->sent)
358#endif 431#endif
359 432
360/* the presence of this union forces similar struct layout */ 433/* the presence of this union forces similar struct layout */
361union ev_any_watcher 434union ev_any_watcher
362{ 435{
… …
385#if EV_ASYNC_ENABLE 458#if EV_ASYNC_ENABLE
386 struct ev_async async; 459 struct ev_async async;
387#endif 460#endif
388}; 461};
389 462
390/* bits for ev_default_loop and ev_loop_new */ 463/* flag bits for ev_default_loop and ev_loop_new */
464enum {
391/* the default */ 465 /* the default */
392#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ 466 EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
393/* flag bits */ 467 /* flag bits */
394#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ 468 EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
395#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ 469 EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
470 /* debugging/feature disable */
471 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
472#if EV_COMPAT3
473 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
474#endif
475 EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */
476};
477
396/* method bits to be ored together */ 478/* method bits to be ored together */
479enum {
397#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ 480 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
398#define EVBACKEND_POLL 0x00000002U /* !win */ 481 EVBACKEND_POLL = 0x00000002U, /* !win */
399#define EVBACKEND_EPOLL 0x00000004U /* linux */ 482 EVBACKEND_EPOLL = 0x00000004U, /* linux */
400#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ 483 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
401#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ 484 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
402#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ 485 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
486 EVBACKEND_ALL = 0x0000003FU
487};
403 488
404#if EV_PROTOTYPES 489#if EV_PROTOTYPES
405int ev_version_major (void); 490int ev_version_major (void);
406int ev_version_minor (void); 491int ev_version_minor (void);
407 492
… …
436} 521}
437 522
438/* the default loop is the only one that handles signals and child watchers */ 523/* the default loop is the only one that handles signals and child watchers */
439/* you can call this as often as you like */ 524/* you can call this as often as you like */
440EV_INLINE struct ev_loop * 525EV_INLINE struct ev_loop *
441ev_default_loop (unsigned int flags) 526ev_default_loop (unsigned int flags EV_DEFARG (0))
442{ 527{
443 struct ev_loop *loop = ev_default_loop_uc (); 528 struct ev_loop *loop = ev_default_loop_uc ();
444 529
445 if (!loop) 530 if (!loop)
446 { 531 {
… …
451 536
452 return loop; 537 return loop;
453} 538}
454 539
455/* create and destroy alternative loops that don't handle signals */ 540/* create and destroy alternative loops that don't handle signals */
456struct ev_loop *ev_loop_new (unsigned int flags); 541struct ev_loop *ev_loop_new (unsigned int flags EV_DEFARG (0));
457void ev_loop_destroy (EV_P); 542void ev_loop_destroy (EV_PDEF);
458void ev_loop_fork (EV_P); 543void ev_loop_fork (EV_PDEF);
459void ev_loop_verify (EV_P);
460 544
461ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 545ev_tstamp ev_now (EV_PDEF); /* time w.r.t. timers and the eventloop, updated after each poll */
462void ev_now_update (EV_P);
463 546
464#else 547#else
465 548
466int ev_default_loop (unsigned int flags); /* returns true when successful */ 549int ev_default_loop (unsigned int flags EV_DEFARG (0)); /* returns true when successful */
467 550
468EV_INLINE ev_tstamp 551EV_INLINE ev_tstamp
469ev_now (void) 552ev_now (void)
470{ 553{
471 extern ev_tstamp ev_rt_now; 554 extern ev_tstamp ev_rt_now;
… …
473 return ev_rt_now; 556 return ev_rt_now;
474} 557}
475#endif /* multiplicity */ 558#endif /* multiplicity */
476 559
477EV_INLINE int 560EV_INLINE int
478ev_is_default_loop (EV_P) 561ev_is_default_loop (EV_PDEF)
479{ 562{
480#if EV_MULTIPLICITY 563#if EV_MULTIPLICITY
481 extern struct ev_loop *ev_default_loop_ptr; 564 extern struct ev_loop *ev_default_loop_ptr;
482 565
483 return !!(EV_A == ev_default_loop_ptr); 566 return !!(EV_A == ev_default_loop_ptr);
… …
491/* if you create alternative loops you have to call ev_loop_fork on them */ 574/* if you create alternative loops you have to call ev_loop_fork on them */
492/* you can call it in either the parent or the child */ 575/* you can call it in either the parent or the child */
493/* you can actually call it at any time, anywhere :) */ 576/* you can actually call it at any time, anywhere :) */
494void ev_default_fork (void); 577void ev_default_fork (void);
495 578
496#if 0 579unsigned int ev_backend (EV_PDEF); /* backend in use by loop */
580
581void ev_now_update (EV_PDEF); /* update event loop time */
582
583#if EV_WALK_ENABLE
497/* walk (almost) all watchers in the loop of a given type, invoking the */ 584/* walk (almost) all watchers in the loop of a given type, invoking the */
498/* callback on every such watcher. The callback might stop the watcher, */ 585/* callback on every such watcher. The callback might stop the watcher, */
499/* but do nothing else with the loop */ 586/* but do nothing else with the loop */
500void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 587void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
501#endif 588#endif
502 589
503unsigned int ev_backend (EV_P); /* backend in use by loop */
504unsigned int ev_loop_count (EV_P); /* number of loop iterations */
505#endif /* prototypes */ 590#endif /* prototypes */
506 591
507#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 592/* ev_run flags values */
508#define EVLOOP_ONESHOT 2 /* block *once* only */ 593enum {
509#define EVUNLOOP_CANCEL 0 /* undo unloop */ 594 EVRUN_NOWAIT = 1, /* do not block/wait */
510#define EVUNLOOP_ONE 1 /* unloop once */ 595 EVRUN_ONCE = 2 /* block *once* only */
596};
597
598/* ev_break how values */
599enum {
600 EVBREAK_CANCEL = 0, /* undo unloop */
601 EVBREAK_ONE = 1, /* unloop once */
511#define EVUNLOOP_ALL 2 /* unloop all loops */ 602 EVBREAK_ALL = 2 /* unloop all loops */
603};
512 604
513#if EV_PROTOTYPES 605#if EV_PROTOTYPES
514void ev_loop (EV_P_ int flags); 606void ev_run (EV_P_ int flags EV_DEFARG (0));
515void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 607void ev_break (EV_P_ int how EV_DEFARG (EVBREAK_ONE)); /* break out of the loop */
608
609/*
610 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
611 * keeps one reference. if you have a long-running watcher you never unregister that
612 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
613 */
614void ev_ref (EV_PDEF);
615void ev_unref (EV_PDEF);
616
617/*
618 * convenience function, wait for a single event, without registering an event watcher
619 * if timeout is < 0, do wait indefinitely
620 */
621void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
622
623# if EV_FEATURE_API
624unsigned int ev_iteration (EV_PDEF); /* number of loop iterations */
625unsigned int ev_depth (EV_PDEF); /* #ev_loop enters - #ev_loop leaves */
626void ev_verify (EV_PDEF); /* abort if loop data corrupted */
516 627
517void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 628void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
518void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 629void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
519 630
631/* advanced stuff for threading etc. support, see docs */
632void ev_set_userdata (EV_P_ void *data);
633void *ev_userdata (EV_PDEF);
634void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
635void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
636
637unsigned int ev_pending_count (EV_PDEF); /* number of pending events, if any */
638void ev_invoke_pending (EV_PDEF); /* invoke all pending watchers */
639
520/* 640/*
521 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 641 * stop/start the timer handling.
522 * keeps one reference. if you have a long-runing watcher you never unregister that
523 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
524 */ 642 */
643void ev_suspend (EV_PDEF);
525void ev_ref (EV_P); 644void ev_resume (EV_PDEF);
526void ev_unref (EV_P); 645#endif
527 646
528/* convenience function, wait for a single event, without registering an event watcher */
529/* if timeout is < 0, do wait indefinitely */
530void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
531#endif 647#endif
532 648
533/* these may evaluate ev multiple times, and the other arguments at most once */ 649/* these may evaluate ev multiple times, and the other arguments at most once */
534/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 650/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
535#define ev_init(ev,cb_) do { \ 651#define ev_init(ev,cb_) do { \
536 ((ev_watcher *)(void *)(ev))->active = \ 652 ((ev_watcher *)(void *)(ev))->active = \
537 ((ev_watcher *)(void *)(ev))->pending = \ 653 ((ev_watcher *)(void *)(ev))->pending = 0; \
538 ((ev_watcher *)(void *)(ev))->priority = 0; \ 654 ev_set_priority ((ev), 0); \
539 ev_set_cb ((ev), cb_); \ 655 ev_set_cb ((ev), cb_); \
540} while (0) 656} while (0)
541 657
542#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) 658#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
543#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) 659#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
… …
548#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 664#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
549#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 665#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
550#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 666#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
551#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 667#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
552#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 668#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
553#define ev_async_set(ev) do { (ev)->sent = 0; } while (0) 669#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
554 670
555#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 671#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
556#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 672#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
557#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) 673#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
558#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 674#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
… …
566#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 682#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
567 683
568#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 684#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
569#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 685#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
570 686
571#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
572#define ev_cb(ev) (ev)->cb /* rw */ 687#define ev_cb(ev) (ev)->cb /* rw */
688
689#if EV_MINPRI == EV_MAXPRI
690# define ev_priority(ev) ((ev), EV_MINPRI)
691# define ev_set_priority(ev,pri) ((ev), (pri))
692#else
693# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
573#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 694# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
695#endif
574 696
575#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 697#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
576 698
577#ifndef ev_set_cb 699#ifndef ev_set_cb
578# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 700# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
579#endif 701#endif
580 702
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584 706
585/* feeds an event into a watcher as if the event actually occured */ 707/* feeds an event into a watcher as if the event actually occured */
586/* accepts any ev_watcher type */ 708/* accepts any ev_watcher type */
587void ev_feed_event (EV_P_ void *w, int revents); 709void ev_feed_event (EV_P_ void *w, int revents);
588void ev_feed_fd_event (EV_P_ int fd, int revents); 710void ev_feed_fd_event (EV_P_ int fd, int revents);
711#if EV_SIGNAL_ENABLE
589void ev_feed_signal_event (EV_P_ int signum); 712void ev_feed_signal_event (EV_P_ int signum);
713#endif
590void ev_invoke (EV_P_ void *w, int revents); 714void ev_invoke (EV_P_ void *w, int revents);
591int ev_clear_pending (EV_P_ void *w); 715int ev_clear_pending (EV_P_ void *w);
592 716
593void ev_io_start (EV_P_ ev_io *w); 717void ev_io_start (EV_P_ ev_io *w);
594void ev_io_stop (EV_P_ ev_io *w); 718void ev_io_stop (EV_P_ ev_io *w);
595 719
596void ev_timer_start (EV_P_ ev_timer *w); 720void ev_timer_start (EV_P_ ev_timer *w);
597void ev_timer_stop (EV_P_ ev_timer *w); 721void ev_timer_stop (EV_P_ ev_timer *w);
598/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 722/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
599void ev_timer_again (EV_P_ ev_timer *w); 723void ev_timer_again (EV_P_ ev_timer *w);
724/* return remaining time */
725ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
600 726
601#if EV_PERIODIC_ENABLE 727#if EV_PERIODIC_ENABLE
602void ev_periodic_start (EV_P_ ev_periodic *w); 728void ev_periodic_start (EV_P_ ev_periodic *w);
603void ev_periodic_stop (EV_P_ ev_periodic *w); 729void ev_periodic_stop (EV_P_ ev_periodic *w);
604void ev_periodic_again (EV_P_ ev_periodic *w); 730void ev_periodic_again (EV_P_ ev_periodic *w);
605#endif 731#endif
606 732
607/* only supported in the default loop */ 733/* only supported in the default loop */
734#if EV_SIGNAL_ENABLE
608void ev_signal_start (EV_P_ ev_signal *w); 735void ev_signal_start (EV_P_ ev_signal *w);
609void ev_signal_stop (EV_P_ ev_signal *w); 736void ev_signal_stop (EV_P_ ev_signal *w);
737#endif
610 738
611/* only supported in the default loop */ 739/* only supported in the default loop */
740# if EV_CHILD_ENABLE
612void ev_child_start (EV_P_ ev_child *w); 741void ev_child_start (EV_P_ ev_child *w);
613void ev_child_stop (EV_P_ ev_child *w); 742void ev_child_stop (EV_P_ ev_child *w);
743# endif
614 744
615# if EV_STAT_ENABLE 745# if EV_STAT_ENABLE
616void ev_stat_start (EV_P_ ev_stat *w); 746void ev_stat_start (EV_P_ ev_stat *w);
617void ev_stat_stop (EV_P_ ev_stat *w); 747void ev_stat_stop (EV_P_ ev_stat *w);
618void ev_stat_stat (EV_P_ ev_stat *w); 748void ev_stat_stat (EV_P_ ev_stat *w);
… …
621# if EV_IDLE_ENABLE 751# if EV_IDLE_ENABLE
622void ev_idle_start (EV_P_ ev_idle *w); 752void ev_idle_start (EV_P_ ev_idle *w);
623void ev_idle_stop (EV_P_ ev_idle *w); 753void ev_idle_stop (EV_P_ ev_idle *w);
624# endif 754# endif
625 755
756#if EV_PREPARE_ENABLE
626void ev_prepare_start (EV_P_ ev_prepare *w); 757void ev_prepare_start (EV_P_ ev_prepare *w);
627void ev_prepare_stop (EV_P_ ev_prepare *w); 758void ev_prepare_stop (EV_P_ ev_prepare *w);
759#endif
628 760
761#if EV_CHECK_ENABLE
629void ev_check_start (EV_P_ ev_check *w); 762void ev_check_start (EV_P_ ev_check *w);
630void ev_check_stop (EV_P_ ev_check *w); 763void ev_check_stop (EV_P_ ev_check *w);
764#endif
631 765
632# if EV_FORK_ENABLE 766# if EV_FORK_ENABLE
633void ev_fork_start (EV_P_ ev_fork *w); 767void ev_fork_start (EV_P_ ev_fork *w);
634void ev_fork_stop (EV_P_ ev_fork *w); 768void ev_fork_stop (EV_P_ ev_fork *w);
635# endif 769# endif
… …
645void ev_async_start (EV_P_ ev_async *w); 779void ev_async_start (EV_P_ ev_async *w);
646void ev_async_stop (EV_P_ ev_async *w); 780void ev_async_stop (EV_P_ ev_async *w);
647void ev_async_send (EV_P_ ev_async *w); 781void ev_async_send (EV_P_ ev_async *w);
648# endif 782# endif
649 783
784#if EV_COMPAT3
785 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
786 #define EVLOOP_ONESHOT EVRUN_ONCE
787 #define EVUNLOOP_CANCEL EVBREAK_CANCEL
788 #define EVUNLOOP_ONE EVBREAK_ONE
789 #define EVUNLOOP_ALL EVBREAK_ALL
790 #if EV_PROTOTYPES
791 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
792 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
793 #if EV_FEATURE_API
794 EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); }
795 EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); }
796 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
797 #endif
798 #endif
799#else
800 typedef struct ev_loop ev_loop;
801#endif
802
650#endif 803#endif
651 804
652#ifdef __cplusplus 805#ifdef __cplusplus
653} 806}
654#endif 807#endif

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