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Comparing libev/ev.h (file contents):
Revision 1.107 by root, Wed Nov 5 02:48:45 2008 UTC vs.
Revision 1.132 by root, Wed Mar 10 08:19:39 2010 UTC

1/* 1/*
2 * libev native API header 2 * libev native API header
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 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
… …
72 72
73#ifndef EV_FORK_ENABLE 73#ifndef EV_FORK_ENABLE
74# define EV_FORK_ENABLE 1 74# define EV_FORK_ENABLE 1
75#endif 75#endif
76 76
77#ifndef EV_SIGNAL_ENABLE
78# define EV_SIGNAL_ENABLE 1
79#endif
80
81#ifndef EV_CHILD_ENABLE
82# ifdef _WIN32
83# define EV_CHILD_ENABLE 0
84# else
85# define EV_CHILD_ENABLE 1
86#endif
87#endif
88
89#ifndef EV_ASYNC_ENABLE
90# define EV_ASYNC_ENABLE 1
91#endif
92
77#ifndef EV_EMBED_ENABLE 93#ifndef EV_EMBED_ENABLE
78# define EV_EMBED_ENABLE 1 94# define EV_EMBED_ENABLE 1
79#endif 95#endif
80 96
81#ifndef EV_ASYNC_ENABLE 97#ifndef EV_WALK_ENABLE
82# define EV_ASYNC_ENABLE 1 98# define EV_WALK_ENABLE 0 /* not yet */
83#endif 99#endif
84 100
85#ifndef EV_ATOMIC_T 101#ifndef EV_ATOMIC_T
86# include <signal.h> 102# include <signal.h>
87# define EV_ATOMIC_T sig_atomic_t volatile 103# define EV_ATOMIC_T sig_atomic_t volatile
88#endif 104#endif
89 105
90/*****************************************************************************/ 106/*****************************************************************************/
107
108#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
109# undef EV_SIGNAL_ENABLE
110# define EV_SIGNAL_ENABLE 1
111#endif
91 112
92#if EV_STAT_ENABLE 113#if EV_STAT_ENABLE
93# ifdef _WIN32 114# ifdef _WIN32
94# include <time.h> 115# include <time.h>
95# include <sys/types.h> 116# include <sys/types.h>
… …
131/* eventmask, revents, events... */ 152/* eventmask, revents, events... */
132#define EV_UNDEF -1 /* guaranteed to be invalid */ 153#define EV_UNDEF -1 /* guaranteed to be invalid */
133#define EV_NONE 0x00 /* no events */ 154#define EV_NONE 0x00 /* no events */
134#define EV_READ 0x01 /* ev_io detected read will not block */ 155#define EV_READ 0x01 /* ev_io detected read will not block */
135#define EV_WRITE 0x02 /* ev_io detected write will not block */ 156#define EV_WRITE 0x02 /* ev_io detected write will not block */
136#define EV_IOFDSET 0x80 /* internal use only */ 157#define EV__IOFDSET 0x80 /* internal use only */
158#define EV_IO EV_READ /* alias for type-detection */
137#define EV_TIMEOUT 0x00000100 /* timer timed out */ 159#define EV_TIMEOUT 0x00000100 /* timer timed out */
160#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
138#define EV_PERIODIC 0x00000200 /* periodic timer timed out */ 161#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
139#define EV_SIGNAL 0x00000400 /* signal was received */ 162#define EV_SIGNAL 0x00000400 /* signal was received */
140#define EV_CHILD 0x00000800 /* child/pid had status change */ 163#define EV_CHILD 0x00000800 /* child/pid had status change */
141#define EV_STAT 0x00001000 /* stat data changed */ 164#define EV_STAT 0x00001000 /* stat data changed */
142#define EV_IDLE 0x00002000 /* event loop is idling */ 165#define EV_IDLE 0x00002000 /* event loop is idling */
143#define EV_PREPARE 0x00004000 /* event loop about to poll */ 166#define EV_PREPARE 0x00004000 /* event loop about to poll */
144#define EV_CHECK 0x00008000 /* event loop finished poll */ 167#define EV_CHECK 0x00008000 /* event loop finished poll */
145#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 168#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
146#define EV_FORK 0x00020000 /* event loop resumed in child */ 169#define EV_FORK 0x00020000 /* event loop resumed in child */
147#define EV_ASYNC 0x00040000 /* async intra-loop signal */ 170#define EV_ASYNC 0x00040000 /* async intra-loop signal */
171#define EV_CUSTOM 0x01000000 /* for use by user code */
148#define EV_ERROR 0x80000000 /* sent when an error occurs */ 172#define EV_ERROR 0x80000000 /* sent when an error occurs */
149 173
150/* can be used to add custom fields to all watchers, while losing binary compatibility */ 174/* can be used to add custom fields to all watchers, while losing binary compatibility */
151#ifndef EV_COMMON 175#ifndef EV_COMMON
152# define EV_COMMON void *data; 176# define EV_COMMON void *data;
… …
154#ifndef EV_PROTOTYPES 178#ifndef EV_PROTOTYPES
155# define EV_PROTOTYPES 1 179# define EV_PROTOTYPES 1
156#endif 180#endif
157 181
158#define EV_VERSION_MAJOR 3 182#define EV_VERSION_MAJOR 3
159#define EV_VERSION_MINOR 0 183#define EV_VERSION_MINOR 9
160 184
161#ifndef EV_CB_DECLARE 185#ifndef EV_CB_DECLARE
162# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 186# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
163#endif 187#endif
164#ifndef EV_CB_INVOKE 188#ifndef EV_CB_INVOKE
165# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) 189# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
166#endif 190#endif
167 191
168/* 192/*
169 * struct member types: 193 * struct member types:
170 * private: you can look at them, but not change them, and they might not mean anything to you. 194 * private: you may look at them, but not change them,
195 * and they might not mean anything to you.
171 * ro: can be read anytime, but only changed when the watcher isn't active 196 * ro: can be read anytime, but only changed when the watcher isn't active.
172 * rw: can be read and modified anytime, even when the watcher is active 197 * rw: can be read and modified anytime, even when the watcher is active.
173 * 198 *
174 * some internal details that might be helpful for debugging: 199 * some internal details that might be helpful for debugging:
175 * 200 *
176 * active is either 0, which means the watcher is not active, 201 * active is either 0, which means the watcher is not active,
177 * or the array index of the watcher (periodics, timers) 202 * or the array index of the watcher (periodics, timers)
178 * or the array index + 1 (most other watchers) 203 * or the array index + 1 (most other watchers)
179 * or simply 1 for watchers that aren't in some array. 204 * or simply 1 for watchers that aren't in some array.
180 * pending is either 0, in which case the watcher isn't, 205 * pending is either 0, in which case the watcher isn't,
181 * or the array index + 1 in the pendings array. 206 * or the array index + 1 in the pendings array.
182 */ 207 */
208
209#if EV_MINPRI == EV_MAXPRI
210# define EV_DECL_PRIORITY
211#else
212# define EV_DECL_PRIORITY int priority;
213#endif
183 214
184/* shared by all watchers */ 215/* shared by all watchers */
185#define EV_WATCHER(type) \ 216#define EV_WATCHER(type) \
186 int active; /* private */ \ 217 int active; /* private */ \
187 int pending; /* private */ \ 218 int pending; /* private */ \
188 int priority; /* private */ \ 219 EV_DECL_PRIORITY /* private */ \
189 EV_COMMON /* rw */ \ 220 EV_COMMON /* rw */ \
190 EV_CB_DECLARE (type) /* private */ 221 EV_CB_DECLARE (type) /* private */
191 222
192#define EV_WATCHER_LIST(type) \ 223#define EV_WATCHER_LIST(type) \
193 EV_WATCHER (type) \ 224 EV_WATCHER (type) \
… …
349 EV_WATCHER (ev_async) 380 EV_WATCHER (ev_async)
350 381
351 EV_ATOMIC_T sent; /* private */ 382 EV_ATOMIC_T sent; /* private */
352} ev_async; 383} ev_async;
353 384
354# define ev_async_pending(w) ((w)->sent + 0) 385# define ev_async_pending(w) (+(w)->sent)
355#endif 386#endif
356 387
357/* the presence of this union forces similar struct layout */ 388/* the presence of this union forces similar struct layout */
358union ev_any_watcher 389union ev_any_watcher
359{ 390{
… …
388/* the default */ 419/* the default */
389#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ 420#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
390/* flag bits */ 421/* flag bits */
391#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ 422#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
392#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ 423#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
424/* debugging/feature disable */
425#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
426#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */
427#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */
393/* method bits to be ored together */ 428/* method bits to be ored together */
394#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ 429#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
395#define EVBACKEND_POLL 0x00000002U /* !win */ 430#define EVBACKEND_POLL 0x00000002U /* !win */
396#define EVBACKEND_EPOLL 0x00000004U /* linux */ 431#define EVBACKEND_EPOLL 0x00000004U /* linux */
397#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ 432#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
398#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ 433#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
399#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ 434#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
435#define EVBACKEND_ALL 0x0000003FU
400 436
401#if EV_PROTOTYPES 437#if EV_PROTOTYPES
402int ev_version_major (void); 438int ev_version_major (void);
403int ev_version_minor (void); 439int ev_version_minor (void);
404 440
… …
451 487
452/* create and destroy alternative loops that don't handle signals */ 488/* create and destroy alternative loops that don't handle signals */
453struct ev_loop *ev_loop_new (unsigned int flags); 489struct ev_loop *ev_loop_new (unsigned int flags);
454void ev_loop_destroy (EV_P); 490void ev_loop_destroy (EV_P);
455void ev_loop_fork (EV_P); 491void ev_loop_fork (EV_P);
456void ev_loop_verify (EV_P);
457 492
458ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 493ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
459void ev_now_update (EV_P);
460 494
461#else 495#else
462 496
463int ev_default_loop (unsigned int flags); /* returns true when successful */ 497int ev_default_loop (unsigned int flags); /* returns true when successful */
464 498
… …
488/* if you create alternative loops you have to call ev_loop_fork on them */ 522/* if you create alternative loops you have to call ev_loop_fork on them */
489/* you can call it in either the parent or the child */ 523/* you can call it in either the parent or the child */
490/* you can actually call it at any time, anywhere :) */ 524/* you can actually call it at any time, anywhere :) */
491void ev_default_fork (void); 525void ev_default_fork (void);
492 526
493unsigned int ev_backend (EV_P); /* backend in use by loop */ 527unsigned int ev_backend (EV_P); /* backend in use by loop */
494unsigned int ev_loop_count (EV_P); /* number of loop iterations */ 528
529void ev_now_update (EV_P); /* update event loop time */
530
531#if EV_WALK_ENABLE
532/* walk (almost) all watchers in the loop of a given type, invoking the */
533/* callback on every such watcher. The callback might stop the watcher, */
534/* but do nothing else with the loop */
535void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
536#endif
537
495#endif /* prototypes */ 538#endif /* prototypes */
496 539
497#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 540#define EVLOOP_NONBLOCK 1 /* do not block/wait */
498#define EVLOOP_ONESHOT 2 /* block *once* only */ 541#define EVLOOP_ONESHOT 2 /* block *once* only */
499#define EVUNLOOP_CANCEL 0 /* undo unloop */ 542#define EVUNLOOP_CANCEL 0 /* undo unloop */
… …
502 545
503#if EV_PROTOTYPES 546#if EV_PROTOTYPES
504void ev_loop (EV_P_ int flags); 547void ev_loop (EV_P_ int flags);
505void 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 */ 548void 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 */
506 549
507void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
508void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
509
510/* 550/*
511 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 551 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
512 * keeps one reference. if you have a long-runing watcher you never unregister that 552 * keeps one reference. if you have a long-running watcher you never unregister that
513 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 553 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
514 */ 554 */
515void ev_ref (EV_P); 555void ev_ref (EV_P);
516void ev_unref (EV_P); 556void ev_unref (EV_P);
517 557
558/*
518/* convenience function, wait for a single event, without registering an event watcher */ 559 * convenience function, wait for a single event, without registering an event watcher
519/* if timeout is < 0, do wait indefinitely */ 560 * if timeout is < 0, do wait indefinitely
561 */
520void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 562void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
563
564# if EV_MINIMAL < 2
565unsigned int ev_loop_count (EV_P); /* number of loop iterations */
566unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
567void ev_loop_verify (EV_P); /* abort if loop data corrupted */
568
569void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
570void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
571
572/* advanced stuff for threading etc. support, see docs */
573void ev_set_userdata (EV_P_ void *data);
574void *ev_userdata (EV_P);
575void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
576void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
577
578unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
579void ev_invoke_pending (EV_P); /* invoke all pending watchers */
580
581/*
582 * stop/start the timer handling.
583 */
584void ev_suspend (EV_P);
585void ev_resume (EV_P);
586#endif
587
521#endif 588#endif
522 589
523/* these may evaluate ev multiple times, and the other arguments at most once */ 590/* these may evaluate ev multiple times, and the other arguments at most once */
524/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 591/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
525#define ev_init(ev,cb_) do { \ 592#define ev_init(ev,cb_) do { \
526 ((ev_watcher *)(void *)(ev))->active = \ 593 ((ev_watcher *)(void *)(ev))->active = \
527 ((ev_watcher *)(void *)(ev))->pending = \ 594 ((ev_watcher *)(void *)(ev))->pending = 0; \
528 ((ev_watcher *)(void *)(ev))->priority = 0; \ 595 ev_set_priority ((ev), 0); \
529 ev_set_cb ((ev), cb_); \ 596 ev_set_cb ((ev), cb_); \
530} while (0) 597} while (0)
531 598
532#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) 599#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
533#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) 600#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
534#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 601#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
535#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 602#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
536#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) 603#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
537#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) 604#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
538#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 605#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
539#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 606#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
540#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 607#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
541#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 608#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
542#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 609#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
543#define ev_async_set(ev) do { (ev)->sent = 0; } while (0) 610#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
544 611
545#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 612#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
546#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 613#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
547#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 614#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
548#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 615#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
549#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) 616#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
550#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) 617#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
551#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 618#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
552#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 619#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
553#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 620#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
554#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) 621#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
555#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 622#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
556#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 623#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
557 624
558#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 625#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
559#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 626#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
560 627
561#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
562#define ev_cb(ev) (ev)->cb /* rw */ 628#define ev_cb(ev) (ev)->cb /* rw */
629
630#if EV_MINPRI == EV_MAXPRI
631# define ev_priority(ev) ((ev), EV_MINPRI)
632# define ev_set_priority(ev,pri) ((ev), (pri))
633#else
634# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
563#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 635# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
636#endif
564 637
565#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 638#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
566 639
567#ifndef ev_set_cb 640#ifndef ev_set_cb
568# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 641# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
569#endif 642#endif
570 643
571/* stopping (enabling, adding) a watcher does nothing if it is already running */ 644/* stopping (enabling, adding) a watcher does nothing if it is already running */
572/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 645/* stopping (disabling, deleting) a watcher does nothing unless its already running */
573#if EV_PROTOTYPES 646#if EV_PROTOTYPES
574 647
575/* feeds an event into a watcher as if the event actually occured */ 648/* feeds an event into a watcher as if the event actually occured */
576/* accepts any ev_watcher type */ 649/* accepts any ev_watcher type */
577void ev_feed_event (EV_P_ void *w, int revents); 650void ev_feed_event (EV_P_ void *w, int revents);
578void ev_feed_fd_event (EV_P_ int fd, int revents); 651void ev_feed_fd_event (EV_P_ int fd, int revents);
652#if EV_SIGNAL_ENABLE
579void ev_feed_signal_event (EV_P_ int signum); 653void ev_feed_signal_event (EV_P_ int signum);
654#endif
580void ev_invoke (EV_P_ void *w, int revents); 655void ev_invoke (EV_P_ void *w, int revents);
581int ev_clear_pending (EV_P_ void *w); 656int ev_clear_pending (EV_P_ void *w);
582 657
583void ev_io_start (EV_P_ ev_io *w); 658void ev_io_start (EV_P_ ev_io *w);
584void ev_io_stop (EV_P_ ev_io *w); 659void ev_io_stop (EV_P_ ev_io *w);
585 660
586void ev_timer_start (EV_P_ ev_timer *w); 661void ev_timer_start (EV_P_ ev_timer *w);
587void ev_timer_stop (EV_P_ ev_timer *w); 662void ev_timer_stop (EV_P_ ev_timer *w);
588/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 663/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
589void ev_timer_again (EV_P_ ev_timer *w); 664void ev_timer_again (EV_P_ ev_timer *w);
665/* return remaining time */
666ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
590 667
591#if EV_PERIODIC_ENABLE 668#if EV_PERIODIC_ENABLE
592void ev_periodic_start (EV_P_ ev_periodic *w); 669void ev_periodic_start (EV_P_ ev_periodic *w);
593void ev_periodic_stop (EV_P_ ev_periodic *w); 670void ev_periodic_stop (EV_P_ ev_periodic *w);
594void ev_periodic_again (EV_P_ ev_periodic *w); 671void ev_periodic_again (EV_P_ ev_periodic *w);
595#endif 672#endif
596 673
597/* only supported in the default loop */ 674/* only supported in the default loop */
675#if EV_SIGNAL_ENABLE
598void ev_signal_start (EV_P_ ev_signal *w); 676void ev_signal_start (EV_P_ ev_signal *w);
599void ev_signal_stop (EV_P_ ev_signal *w); 677void ev_signal_stop (EV_P_ ev_signal *w);
678#endif
600 679
601/* only supported in the default loop */ 680/* only supported in the default loop */
681# if EV_CHILD_ENABLE
602void ev_child_start (EV_P_ ev_child *w); 682void ev_child_start (EV_P_ ev_child *w);
603void ev_child_stop (EV_P_ ev_child *w); 683void ev_child_stop (EV_P_ ev_child *w);
684# endif
604 685
605# if EV_STAT_ENABLE 686# if EV_STAT_ENABLE
606void ev_stat_start (EV_P_ ev_stat *w); 687void ev_stat_start (EV_P_ ev_stat *w);
607void ev_stat_stop (EV_P_ ev_stat *w); 688void ev_stat_stop (EV_P_ ev_stat *w);
608void ev_stat_stat (EV_P_ ev_stat *w); 689void ev_stat_stat (EV_P_ ev_stat *w);

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