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Comparing libev/ev.h (file contents):
Revision 1.124 by root, Sun Jul 19 06:35:25 2009 UTC vs.
Revision 1.152 by root, Sun Oct 24 19:01:01 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
44# define EV_CPP(x) x
45#else
46# define EV_CPP(x)
47#endif
48
44extern "C" { 49EV_CPP(extern "C" {)
45#endif
46 50
47typedef double ev_tstamp; 51/*****************************************************************************/
48 52
53/* pre-4.0 compatibility */
54#ifndef EV_COMPAT3
55# define EV_COMPAT3 1
56#endif
57
58#ifndef EV_FEATURES
59# define EV_FEATURES 0x7f
60#endif
61
62#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
63#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
64#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
65#define EV_FEATURE_API ((EV_FEATURES) & 8)
66#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
67#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
68#define EV_FEATURE_OS ((EV_FEATURES) & 64)
69
49/* these priorities are inclusive, higher priorities will be called earlier */ 70/* these priorities are inclusive, higher priorities will be invoked earlier */
50#ifndef EV_MINPRI 71#ifndef EV_MINPRI
51# define EV_MINPRI -2 72# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
52#endif 73#endif
53#ifndef EV_MAXPRI 74#ifndef EV_MAXPRI
54# define EV_MAXPRI +2 75# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
55#endif 76#endif
56 77
57#ifndef EV_MULTIPLICITY 78#ifndef EV_MULTIPLICITY
58# define EV_MULTIPLICITY 1 79# define EV_MULTIPLICITY EV_FEATURE_CONFIG
59#endif 80#endif
60 81
61#ifndef EV_PERIODIC_ENABLE 82#ifndef EV_PERIODIC_ENABLE
62# define EV_PERIODIC_ENABLE 1 83# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
63#endif 84#endif
64 85
65#ifndef EV_STAT_ENABLE 86#ifndef EV_STAT_ENABLE
66# define EV_STAT_ENABLE 1 87# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
88#endif
89
90#ifndef EV_PREPARE_ENABLE
91# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
92#endif
93
94#ifndef EV_CHECK_ENABLE
95# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
67#endif 96#endif
68 97
69#ifndef EV_IDLE_ENABLE 98#ifndef EV_IDLE_ENABLE
70# define EV_IDLE_ENABLE 1 99# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
71#endif 100#endif
72 101
73#ifndef EV_FORK_ENABLE 102#ifndef EV_FORK_ENABLE
103# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
104#endif
105
106#ifndef EV_CLEANUP_ENABLE
107# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
108#endif
109
110#ifndef EV_SIGNAL_ENABLE
111# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
112#endif
113
114#ifndef EV_CHILD_ENABLE
115# ifdef _WIN32
74# define EV_FORK_ENABLE 1 116# define EV_CHILD_ENABLE 0
117# else
118# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
119#endif
120#endif
121
122#ifndef EV_ASYNC_ENABLE
123# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
75#endif 124#endif
76 125
77#ifndef EV_EMBED_ENABLE 126#ifndef EV_EMBED_ENABLE
78# define EV_EMBED_ENABLE 1 127# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
79#endif
80
81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1
83#endif 128#endif
84 129
85#ifndef EV_WALK_ENABLE 130#ifndef EV_WALK_ENABLE
86# define EV_WALK_ENABLE 0 /* not yet */ 131# define EV_WALK_ENABLE 0 /* not yet */
87#endif 132#endif
133
134/*****************************************************************************/
135
136#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
137# undef EV_SIGNAL_ENABLE
138# define EV_SIGNAL_ENABLE 1
139#endif
140
141/*****************************************************************************/
142
143typedef double ev_tstamp;
88 144
89#ifndef EV_ATOMIC_T 145#ifndef EV_ATOMIC_T
90# include <signal.h> 146# include <signal.h>
91# define EV_ATOMIC_T sig_atomic_t volatile 147# define EV_ATOMIC_T sig_atomic_t volatile
92#endif 148#endif
93
94/*****************************************************************************/
95 149
96#if EV_STAT_ENABLE 150#if EV_STAT_ENABLE
97# ifdef _WIN32 151# ifdef _WIN32
98# include <time.h> 152# include <time.h>
99# include <sys/types.h> 153# include <sys/types.h>
102#endif 156#endif
103 157
104/* support multiple event loops? */ 158/* support multiple event loops? */
105#if EV_MULTIPLICITY 159#if EV_MULTIPLICITY
106struct ev_loop; 160struct ev_loop;
107# define EV_P struct ev_loop *loop 161# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
108# define EV_P_ EV_P, 162# define EV_P_ EV_P, /* a loop as first of multiple parameters */
109# define EV_A loop 163# define EV_A loop /* a loop as sole argument to a function call */
110# define EV_A_ EV_A, 164# define EV_A_ EV_A, /* a loop as first of multiple arguments */
111# define EV_DEFAULT_UC ev_default_loop_uc () 165# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
112# define EV_DEFAULT_UC_ EV_DEFAULT_UC, 166# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
113# define EV_DEFAULT ev_default_loop (0) 167# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
114# define EV_DEFAULT_ EV_DEFAULT, 168# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
115#else 169#else
116# define EV_P void 170# define EV_P void
117# define EV_P_ 171# define EV_P_
118# define EV_A 172# define EV_A
119# define EV_A_ 173# define EV_A_
122# define EV_DEFAULT_UC 176# define EV_DEFAULT_UC
123# define EV_DEFAULT_UC_ 177# define EV_DEFAULT_UC_
124# undef EV_EMBED_ENABLE 178# undef EV_EMBED_ENABLE
125#endif 179#endif
126 180
181/* EV_INLINE is used for functions in header files */
127#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 182#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
128# define EV_INLINE static inline 183# define EV_INLINE static inline
129#else 184#else
130# define EV_INLINE static 185# define EV_INLINE static
131#endif 186#endif
132 187
188/* EV_PROTOTYPES can be sued to switch of prototype declarations */
189#ifndef EV_PROTOTYPES
190# define EV_PROTOTYPES 1
191#endif
192
133/*****************************************************************************/ 193/*****************************************************************************/
134 194
195#define EV_VERSION_MAJOR 4
196#define EV_VERSION_MINOR 0
197
135/* eventmask, revents, events... */ 198/* eventmask, revents, events... */
199enum {
136#define EV_UNDEF -1 /* guaranteed to be invalid */ 200 EV_UNDEF = -1, /* guaranteed to be invalid */
137#define EV_NONE 0x00 /* no events */ 201 EV_NONE = 0x00, /* no events */
138#define EV_READ 0x01 /* ev_io detected read will not block */ 202 EV_READ = 0x01, /* ev_io detected read will not block */
139#define EV_WRITE 0x02 /* ev_io detected write will not block */ 203 EV_WRITE = 0x02, /* ev_io detected write will not block */
140#define EV__IOFDSET 0x80 /* internal use only */ 204 EV__IOFDSET = 0x80, /* internal use only */
141#define EV_IO EV_READ /* alias for type-detection */ 205 EV_IO = EV_READ, /* alias for type-detection */
142#define EV_TIMEOUT 0x00000100 /* timer timed out */ 206 EV_TIMER = 0x00000100, /* timer timed out */
143#define EV_TIMER EV_TIMEOUT /* alias for type-detection */ 207#if EV_COMPAT3
208 EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
209#endif
144#define EV_PERIODIC 0x00000200 /* periodic timer timed out */ 210 EV_PERIODIC = 0x00000200, /* periodic timer timed out */
145#define EV_SIGNAL 0x00000400 /* signal was received */ 211 EV_SIGNAL = 0x00000400, /* signal was received */
146#define EV_CHILD 0x00000800 /* child/pid had status change */ 212 EV_CHILD = 0x00000800, /* child/pid had status change */
147#define EV_STAT 0x00001000 /* stat data changed */ 213 EV_STAT = 0x00001000, /* stat data changed */
148#define EV_IDLE 0x00002000 /* event loop is idling */ 214 EV_IDLE = 0x00002000, /* event loop is idling */
149#define EV_PREPARE 0x00004000 /* event loop about to poll */ 215 EV_PREPARE = 0x00004000, /* event loop about to poll */
150#define EV_CHECK 0x00008000 /* event loop finished poll */ 216 EV_CHECK = 0x00008000, /* event loop finished poll */
151#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 217 EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
152#define EV_FORK 0x00020000 /* event loop resumed in child */ 218 EV_FORK = 0x00020000, /* event loop resumed in child */
219 EV_CLEANUP = 0x00040000, /* event loop resumed in child */
153#define EV_ASYNC 0x00040000 /* async intra-loop signal */ 220 EV_ASYNC = 0x00080000, /* async intra-loop signal */
154#define EV_CUSTOM 0x01000000 /* for use by user code */ 221 EV_CUSTOM = 0x01000000, /* for use by user code */
155#define EV_ERROR 0x80000000 /* sent when an error occurs */ 222 EV_ERROR = 0x80000000 /* sent when an error occurs */
223};
156 224
157/* can be used to add custom fields to all watchers, while losing binary compatibility */ 225/* can be used to add custom fields to all watchers, while losing binary compatibility */
158#ifndef EV_COMMON 226#ifndef EV_COMMON
159# define EV_COMMON void *data; 227# define EV_COMMON void *data;
160#endif 228#endif
161#ifndef EV_PROTOTYPES
162# define EV_PROTOTYPES 1
163#endif
164
165#define EV_VERSION_MAJOR 3
166#define EV_VERSION_MINOR 7
167 229
168#ifndef EV_CB_DECLARE 230#ifndef EV_CB_DECLARE
169# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 231# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
170#endif 232#endif
171#ifndef EV_CB_INVOKE 233#ifndef EV_CB_INVOKE
172# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) 234# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
173#endif 235#endif
236
237/* not official, do not use */
238#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
174 239
175/* 240/*
176 * struct member types: 241 * struct member types:
177 * private: you may look at them, but not change them, 242 * private: you may look at them, but not change them,
178 * and they might not mean anything to you. 243 * and they might not mean anything to you.
189 * or the array index + 1 in the pendings array. 254 * or the array index + 1 in the pendings array.
190 */ 255 */
191 256
192#if EV_MINPRI == EV_MAXPRI 257#if EV_MINPRI == EV_MAXPRI
193# define EV_DECL_PRIORITY 258# define EV_DECL_PRIORITY
194#else 259#elif !defined (EV_DECL_PRIORITY)
195# define EV_DECL_PRIORITY int priority; 260# define EV_DECL_PRIORITY int priority;
196#endif 261#endif
197 262
198/* shared by all watchers */ 263/* shared by all watchers */
199#define EV_WATCHER(type) \ 264#define EV_WATCHER(type) \
329 EV_WATCHER (ev_check) 394 EV_WATCHER (ev_check)
330} ev_check; 395} ev_check;
331 396
332#if EV_FORK_ENABLE 397#if EV_FORK_ENABLE
333/* the callback gets invoked before check in the child process when a fork was detected */ 398/* the callback gets invoked before check in the child process when a fork was detected */
399/* revent EV_FORK */
334typedef struct ev_fork 400typedef struct ev_fork
335{ 401{
336 EV_WATCHER (ev_fork) 402 EV_WATCHER (ev_fork)
337} ev_fork; 403} ev_fork;
404#endif
405
406#if EV_CLEANUP_ENABLE
407/* is invoked just before the loop gets destroyed */
408/* revent EV_CLEANUP */
409typedef struct ev_cleanup
410{
411 EV_WATCHER (ev_cleanup)
412} ev_cleanup;
338#endif 413#endif
339 414
340#if EV_EMBED_ENABLE 415#if EV_EMBED_ENABLE
341/* used to embed an event loop inside another */ 416/* used to embed an event loop inside another */
342/* the callback gets invoked when the event loop has handled events, and can be 0 */ 417/* the callback gets invoked when the event loop has handled events, and can be 0 */
350 ev_check check; /* unused */ 425 ev_check check; /* unused */
351 ev_timer timer; /* unused */ 426 ev_timer timer; /* unused */
352 ev_periodic periodic; /* unused */ 427 ev_periodic periodic; /* unused */
353 ev_idle idle; /* unused */ 428 ev_idle idle; /* unused */
354 ev_fork fork; /* private */ 429 ev_fork fork; /* private */
430#if EV_CLEANUP_ENABLE
431 ev_cleanup cleanup; /* unused */
432#endif
355} ev_embed; 433} ev_embed;
356#endif 434#endif
357 435
358#if EV_ASYNC_ENABLE 436#if EV_ASYNC_ENABLE
359/* invoked when somebody calls ev_async_send on the watcher */ 437/* invoked when somebody calls ev_async_send on the watcher */
363 EV_WATCHER (ev_async) 441 EV_WATCHER (ev_async)
364 442
365 EV_ATOMIC_T sent; /* private */ 443 EV_ATOMIC_T sent; /* private */
366} ev_async; 444} ev_async;
367 445
368# define ev_async_pending(w) ((w)->sent + 0) 446# define ev_async_pending(w) (+(w)->sent)
369#endif 447#endif
370 448
371/* the presence of this union forces similar struct layout */ 449/* the presence of this union forces similar struct layout */
372union ev_any_watcher 450union ev_any_watcher
373{ 451{
388 struct ev_prepare prepare; 466 struct ev_prepare prepare;
389 struct ev_check check; 467 struct ev_check check;
390#if EV_FORK_ENABLE 468#if EV_FORK_ENABLE
391 struct ev_fork fork; 469 struct ev_fork fork;
392#endif 470#endif
471#if EV_CLEANUP_ENABLE
472 struct ev_cleanup cleanup;
473#endif
393#if EV_EMBED_ENABLE 474#if EV_EMBED_ENABLE
394 struct ev_embed embed; 475 struct ev_embed embed;
395#endif 476#endif
396#if EV_ASYNC_ENABLE 477#if EV_ASYNC_ENABLE
397 struct ev_async async; 478 struct ev_async async;
398#endif 479#endif
399}; 480};
400 481
401/* bits for ev_default_loop and ev_loop_new */ 482/* flag bits for ev_default_loop and ev_loop_new */
483enum {
402/* the default */ 484 /* the default */
403#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ 485 EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
404/* flag bits */ 486 /* flag bits */
405#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ 487 EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
406#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ 488 EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
407/* debugging/feature disable */ 489 /* debugging/feature disable */
408#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ 490 EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
491#if EV_COMPAT3
492 EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
493#endif
409#define EVFLAG_NOSIGFD 0x00200000U /* do not attempt to use signalfd */ 494 EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */
495};
496
410/* method bits to be ored together */ 497/* method bits to be ored together */
498enum {
411#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ 499 EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
412#define EVBACKEND_POLL 0x00000002U /* !win */ 500 EVBACKEND_POLL = 0x00000002U, /* !win */
413#define EVBACKEND_EPOLL 0x00000004U /* linux */ 501 EVBACKEND_EPOLL = 0x00000004U, /* linux */
414#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ 502 EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
415#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ 503 EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
416#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ 504 EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
505 EVBACKEND_ALL = 0x0000003FU
506};
417 507
418#if EV_PROTOTYPES 508#if EV_PROTOTYPES
419int ev_version_major (void); 509int ev_version_major (void);
420int ev_version_minor (void); 510int ev_version_minor (void);
421 511
439 * (such as failed select, poll, epoll_wait) 529 * (such as failed select, poll, epoll_wait)
440 */ 530 */
441void ev_set_syserr_cb (void (*cb)(const char *msg)); 531void ev_set_syserr_cb (void (*cb)(const char *msg));
442 532
443#if EV_MULTIPLICITY 533#if EV_MULTIPLICITY
534
535/* the default loop is the only one that handles signals and child watchers */
536/* you can call this as often as you like */
537struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
538
444EV_INLINE struct ev_loop * 539EV_INLINE struct ev_loop *
445ev_default_loop_uc (void) 540ev_default_loop_uc_ (void)
446{ 541{
447 extern struct ev_loop *ev_default_loop_ptr; 542 extern struct ev_loop *ev_default_loop_ptr;
448 543
449 return ev_default_loop_ptr; 544 return ev_default_loop_ptr;
450} 545}
451 546
452/* the default loop is the only one that handles signals and child watchers */ 547EV_INLINE int
453/* you can call this as often as you like */ 548ev_is_default_loop (EV_P)
454EV_INLINE struct ev_loop *
455ev_default_loop (unsigned int flags)
456{ 549{
457 struct ev_loop *loop = ev_default_loop_uc (); 550 return EV_A == EV_DEFAULT_UC;
458
459 if (!loop)
460 {
461 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
462
463 loop = ev_default_loop_init (flags);
464 }
465
466 return loop;
467} 551}
468 552
469/* create and destroy alternative loops that don't handle signals */ 553/* create and destroy alternative loops that don't handle signals */
470struct ev_loop *ev_loop_new (unsigned int flags); 554struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
555/* destroy event loops, also works for the default loop */
471void ev_loop_destroy (EV_P); 556void ev_loop_destroy (EV_P);
472void ev_loop_fork (EV_P);
473 557
474ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 558ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
475 559
476#else 560#else
477 561
478int ev_default_loop (unsigned int flags); /* returns true when successful */ 562int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
479 563
480EV_INLINE ev_tstamp 564EV_INLINE ev_tstamp
481ev_now (void) 565ev_now (void)
482{ 566{
483 extern ev_tstamp ev_rt_now; 567 extern ev_tstamp ev_rt_now;
484 568
485 return ev_rt_now; 569 return ev_rt_now;
486} 570}
571
572/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
573EV_INLINE int
574ev_is_default_loop (void)
575{
576 return 1;
577}
578
487#endif /* multiplicity */ 579#endif /* multiplicity */
488 580
489EV_INLINE int
490ev_is_default_loop (EV_P)
491{
492#if EV_MULTIPLICITY
493 extern struct ev_loop *ev_default_loop_ptr;
494
495 return !!(EV_A == ev_default_loop_ptr);
496#else
497 return 1;
498#endif
499}
500
501void ev_default_destroy (void); /* destroy the default loop */
502/* this needs to be called after fork, to duplicate the default loop */ 581/* this needs to be called after fork, to duplicate the loop */
503/* if you create alternative loops you have to call ev_loop_fork on them */ 582/* when you want to re-use it in the child */
504/* you can call it in either the parent or the child */ 583/* you can call it in either the parent or the child */
505/* you can actually call it at any time, anywhere :) */ 584/* you can actually call it at any time, anywhere :) */
506void ev_default_fork (void); 585void ev_loop_fork (EV_P);
507 586
508unsigned int ev_backend (EV_P); /* backend in use by loop */ 587unsigned int ev_backend (EV_P); /* backend in use by loop */
509 588
510void ev_now_update (EV_P); /* update event loop time */ 589void ev_now_update (EV_P); /* update event loop time */
511 590
516void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 595void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
517#endif 596#endif
518 597
519#endif /* prototypes */ 598#endif /* prototypes */
520 599
521#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 600/* ev_run flags values */
522#define EVLOOP_ONESHOT 2 /* block *once* only */ 601enum {
523#define EVUNLOOP_CANCEL 0 /* undo unloop */ 602 EVRUN_NOWAIT = 1, /* do not block/wait */
524#define EVUNLOOP_ONE 1 /* unloop once */ 603 EVRUN_ONCE = 2 /* block *once* only */
604};
605
606/* ev_break how values */
607enum {
608 EVBREAK_CANCEL = 0, /* undo unloop */
609 EVBREAK_ONE = 1, /* unloop once */
525#define EVUNLOOP_ALL 2 /* unloop all loops */ 610 EVBREAK_ALL = 2 /* unloop all loops */
611};
526 612
527#if EV_PROTOTYPES 613#if EV_PROTOTYPES
528void ev_loop (EV_P_ int flags); 614void ev_run (EV_P_ int flags EV_CPP (= 0));
529void 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 */ 615void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
530 616
531/* 617/*
532 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 618 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
533 * keeps one reference. if you have a long-running watcher you never unregister that 619 * keeps one reference. if you have a long-running watcher you never unregister that
534 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 620 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
540 * convenience function, wait for a single event, without registering an event watcher 626 * convenience function, wait for a single event, without registering an event watcher
541 * if timeout is < 0, do wait indefinitely 627 * if timeout is < 0, do wait indefinitely
542 */ 628 */
543void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 629void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
544 630
545# if EV_MINIMAL < 2 631# if EV_FEATURE_API
546unsigned int ev_loop_count (EV_P); /* number of loop iterations */ 632unsigned int ev_iteration (EV_P); /* number of loop iterations */
547unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ 633unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
548void ev_loop_verify (EV_P); /* abort if loop data corrupted */ 634void ev_verify (EV_P); /* abort if loop data corrupted */
549 635
550void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 636void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
551void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 637void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
552 638
553/* advanced stuff for threading etc. support, see docs */ 639/* advanced stuff for threading etc. support, see docs */
586#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 672#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
587#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 673#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
588#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 674#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
589#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 675#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
590#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 676#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
591#define ev_async_set(ev) do { (ev)->sent = 0; } while (0) 677#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
678#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
592 679
593#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 680#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
594#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 681#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
595#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) 682#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
596#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 683#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
599#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 686#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
600#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 687#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
601#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 688#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
602#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) 689#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
603#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 690#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
691#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
604#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 692#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
605 693
606#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 694#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
607#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 695#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
608 696
610 698
611#if EV_MINPRI == EV_MAXPRI 699#if EV_MINPRI == EV_MAXPRI
612# define ev_priority(ev) ((ev), EV_MINPRI) 700# define ev_priority(ev) ((ev), EV_MINPRI)
613# define ev_set_priority(ev,pri) ((ev), (pri)) 701# define ev_set_priority(ev,pri) ((ev), (pri))
614#else 702#else
615# define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) 703# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
616# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) 704# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
617#endif 705#endif
618 706
619#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 707#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
620 708
621#ifndef ev_set_cb 709#ifndef ev_set_cb
622# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 710# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
623#endif 711#endif
624 712
628 716
629/* feeds an event into a watcher as if the event actually occured */ 717/* feeds an event into a watcher as if the event actually occured */
630/* accepts any ev_watcher type */ 718/* accepts any ev_watcher type */
631void ev_feed_event (EV_P_ void *w, int revents); 719void ev_feed_event (EV_P_ void *w, int revents);
632void ev_feed_fd_event (EV_P_ int fd, int revents); 720void ev_feed_fd_event (EV_P_ int fd, int revents);
721#if EV_SIGNAL_ENABLE
633void ev_feed_signal_event (EV_P_ int signum); 722void ev_feed_signal_event (EV_P_ int signum);
723#endif
634void ev_invoke (EV_P_ void *w, int revents); 724void ev_invoke (EV_P_ void *w, int revents);
635int ev_clear_pending (EV_P_ void *w); 725int ev_clear_pending (EV_P_ void *w);
636 726
637void ev_io_start (EV_P_ ev_io *w); 727void ev_io_start (EV_P_ ev_io *w);
638void ev_io_stop (EV_P_ ev_io *w); 728void ev_io_stop (EV_P_ ev_io *w);
649void ev_periodic_stop (EV_P_ ev_periodic *w); 739void ev_periodic_stop (EV_P_ ev_periodic *w);
650void ev_periodic_again (EV_P_ ev_periodic *w); 740void ev_periodic_again (EV_P_ ev_periodic *w);
651#endif 741#endif
652 742
653/* only supported in the default loop */ 743/* only supported in the default loop */
744#if EV_SIGNAL_ENABLE
654void ev_signal_start (EV_P_ ev_signal *w); 745void ev_signal_start (EV_P_ ev_signal *w);
655void ev_signal_stop (EV_P_ ev_signal *w); 746void ev_signal_stop (EV_P_ ev_signal *w);
747#endif
656 748
657/* only supported in the default loop */ 749/* only supported in the default loop */
750# if EV_CHILD_ENABLE
658void ev_child_start (EV_P_ ev_child *w); 751void ev_child_start (EV_P_ ev_child *w);
659void ev_child_stop (EV_P_ ev_child *w); 752void ev_child_stop (EV_P_ ev_child *w);
753# endif
660 754
661# if EV_STAT_ENABLE 755# if EV_STAT_ENABLE
662void ev_stat_start (EV_P_ ev_stat *w); 756void ev_stat_start (EV_P_ ev_stat *w);
663void ev_stat_stop (EV_P_ ev_stat *w); 757void ev_stat_stop (EV_P_ ev_stat *w);
664void ev_stat_stat (EV_P_ ev_stat *w); 758void ev_stat_stat (EV_P_ ev_stat *w);
667# if EV_IDLE_ENABLE 761# if EV_IDLE_ENABLE
668void ev_idle_start (EV_P_ ev_idle *w); 762void ev_idle_start (EV_P_ ev_idle *w);
669void ev_idle_stop (EV_P_ ev_idle *w); 763void ev_idle_stop (EV_P_ ev_idle *w);
670# endif 764# endif
671 765
766#if EV_PREPARE_ENABLE
672void ev_prepare_start (EV_P_ ev_prepare *w); 767void ev_prepare_start (EV_P_ ev_prepare *w);
673void ev_prepare_stop (EV_P_ ev_prepare *w); 768void ev_prepare_stop (EV_P_ ev_prepare *w);
769#endif
674 770
771#if EV_CHECK_ENABLE
675void ev_check_start (EV_P_ ev_check *w); 772void ev_check_start (EV_P_ ev_check *w);
676void ev_check_stop (EV_P_ ev_check *w); 773void ev_check_stop (EV_P_ ev_check *w);
774#endif
677 775
678# if EV_FORK_ENABLE 776# if EV_FORK_ENABLE
679void ev_fork_start (EV_P_ ev_fork *w); 777void ev_fork_start (EV_P_ ev_fork *w);
680void ev_fork_stop (EV_P_ ev_fork *w); 778void ev_fork_stop (EV_P_ ev_fork *w);
779# endif
780
781# if EV_CLEANUP_ENABLE
782void ev_cleanup_start (EV_P_ ev_cleanup *w);
783void ev_cleanup_stop (EV_P_ ev_cleanup *w);
681# endif 784# endif
682 785
683# if EV_EMBED_ENABLE 786# if EV_EMBED_ENABLE
684/* only supported when loop to be embedded is in fact embeddable */ 787/* only supported when loop to be embedded is in fact embeddable */
685void ev_embed_start (EV_P_ ev_embed *w); 788void ev_embed_start (EV_P_ ev_embed *w);
691void ev_async_start (EV_P_ ev_async *w); 794void ev_async_start (EV_P_ ev_async *w);
692void ev_async_stop (EV_P_ ev_async *w); 795void ev_async_stop (EV_P_ ev_async *w);
693void ev_async_send (EV_P_ ev_async *w); 796void ev_async_send (EV_P_ ev_async *w);
694# endif 797# endif
695 798
799#if EV_COMPAT3
800 #define EVLOOP_NONBLOCK EVRUN_NOWAIT
801 #define EVLOOP_ONESHOT EVRUN_ONCE
802 #define EVUNLOOP_CANCEL EVBREAK_CANCEL
803 #define EVUNLOOP_ONE EVBREAK_ONE
804 #define EVUNLOOP_ALL EVBREAK_ALL
805 #if EV_PROTOTYPES
806 EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
807 EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
808 EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
809 EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
810 #if EV_FEATURE_API
811 EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); }
812 EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); }
813 EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
814 #endif
696#endif 815 #endif
697 816#else
698#ifdef __cplusplus 817 typedef struct ev_loop ev_loop;
699}
700#endif 818#endif
701 819
702#endif 820#endif
703 821
822EV_CPP(})
823
824#endif
825

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