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Comparing libev/ev.c (file contents):
Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC vs.
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
40	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
41	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
42	# endif	57	# endif
43		58
		59	# ifndef EV_USE_SELECT
44	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
45	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
46	# endif	65	# endif
47		66
		67	# ifndef EV_USE_POLL
48	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
49	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
50	# endif	73	# endif
51		74
		75	# ifndef EV_USE_EPOLL
52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
53	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
54	# endif	81	# endif
55		82
		83	# ifndef EV_USE_KQUEUE
56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
57	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
		97	# endif
		98
		99	# ifndef EV_USE_INOTIFY
		100	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		101	# define EV_USE_INOTIFY 1
		102	# else
		103	# define EV_USE_INOTIFY 0
		104	# endif
58	# endif	105	# endif
59		106
60	#endif	107	#endif
61		108
62	#include <math.h>	109	#include <math.h>
…		…
71	#include <sys/types.h>	118	#include <sys/types.h>
72	#include <time.h>	119	#include <time.h>
73		120
74	#include <signal.h>	121	#include <signal.h>
75		122
76	#ifndef WIN32
77	# include <unistd.h>
78	# include <sys/time.h>
79	# include <sys/wait.h>
80	#endif
81	/**/
82
83	#ifndef EV_USE_MONOTONIC
84	# define EV_USE_MONOTONIC 1
85	#endif
86
87	#ifndef EV_USE_SELECT
88	# define EV_USE_SELECT 1
89	#endif
90
91	#ifndef EV_USE_POLL
92	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
93	#endif
94
95	#ifndef EV_USE_EPOLL
96	# define EV_USE_EPOLL 0
97	#endif
98
99	#ifndef EV_USE_KQUEUE
100	# define EV_USE_KQUEUE 0
101	#endif
102
103	#ifndef EV_USE_WIN32
104	# ifdef WIN32
105	# define EV_USE_WIN32 0 /* it does not exist, use select */
106	# undef EV_USE_SELECT
107	# define EV_USE_SELECT 1
108	# else
109	# define EV_USE_WIN32 0
110	# endif
111	#endif
112
113	#ifndef EV_USE_REALTIME
114	# define EV_USE_REALTIME 1
115	#endif
116
117	/**/
118
119	#ifndef CLOCK_MONOTONIC
120	# undef EV_USE_MONOTONIC
121	# define EV_USE_MONOTONIC 0
122	#endif
123
124	#ifndef CLOCK_REALTIME
125	# undef EV_USE_REALTIME
126	# define EV_USE_REALTIME 0
127	#endif
128
129	/**/
130
131	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
132	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
133	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
134	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
135
136	#ifdef EV_H	123	#ifdef EV_H
137	# include EV_H	124	# include EV_H
138	#else	125	#else
139	# include "ev.h"	126	# include "ev.h"
140	#endif	127	#endif
141		128
		129	#ifndef _WIN32
		130	# include <sys/time.h>
		131	# include <sys/wait.h>
		132	# include <unistd.h>
		133	#else
		134	# define WIN32_LEAN_AND_MEAN
		135	# include <windows.h>
		136	# ifndef EV_SELECT_IS_WINSOCKET
		137	# define EV_SELECT_IS_WINSOCKET 1
		138	# endif
		139	#endif
		140
		141	/**/
		142
		143	#ifndef EV_USE_MONOTONIC
		144	# define EV_USE_MONOTONIC 0
		145	#endif
		146
		147	#ifndef EV_USE_REALTIME
		148	# define EV_USE_REALTIME 0
		149	#endif
		150
		151	#ifndef EV_USE_SELECT
		152	# define EV_USE_SELECT 1
		153	#endif
		154
		155	#ifndef EV_USE_POLL
		156	# ifdef _WIN32
		157	# define EV_USE_POLL 0
		158	# else
		159	# define EV_USE_POLL 1
		160	# endif
		161	#endif
		162
		163	#ifndef EV_USE_EPOLL
		164	# define EV_USE_EPOLL 0
		165	#endif
		166
		167	#ifndef EV_USE_KQUEUE
		168	# define EV_USE_KQUEUE 0
		169	#endif
		170
		171	#ifndef EV_USE_PORT
		172	# define EV_USE_PORT 0
		173	#endif
		174
		175	#ifndef EV_USE_INOTIFY
		176	# define EV_USE_INOTIFY 0
		177	#endif
		178
		179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
		182	# else
		183	# define EV_PID_HASHSIZE 16
		184	# endif
		185	#endif
		186
		187	#ifndef EV_INOTIFY_HASHSIZE
		188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
		193	#endif
		194
		195	/**/
		196
		197	#ifndef CLOCK_MONOTONIC
		198	# undef EV_USE_MONOTONIC
		199	# define EV_USE_MONOTONIC 0
		200	#endif
		201
		202	#ifndef CLOCK_REALTIME
		203	# undef EV_USE_REALTIME
		204	# define EV_USE_REALTIME 0
		205	#endif
		206
		207	#if EV_SELECT_IS_WINSOCKET
		208	# include <winsock.h>
		209	#endif
		210
		211	#if !EV_STAT_ENABLE
		212	# define EV_USE_INOTIFY 0
		213	#endif
		214
		215	#if EV_USE_INOTIFY
		216	# include <sys/inotify.h>
		217	#endif
		218
		219	/**/
		220
		221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
		222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
		223	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
		224
142	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
143	# define expect(expr,value) __builtin_expect ((expr),(value))	226	# define expect(expr,value) __builtin_expect ((expr),(value))
		227	# define inline_size static inline /* inline for codesize */
		228	# if EV_MINIMAL
144	# define inline inline	229	# define noinline __attribute__ ((noinline))
		230	# define inline_speed static noinline
		231	# else
		232	# define noinline
		233	# define inline_speed static inline
		234	# endif
145	#else	235	#else
146	# define expect(expr,value) (expr)	236	# define expect(expr,value) (expr)
		237	# define inline_speed static
147	# define inline static	238	# define inline_size static
		239	# define noinline
148	#endif	240	#endif
149		241
150	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
151	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
152		244
153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
155		247
		248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		249	#define EMPTY2(a,b) /* used to suppress some warnings */
		250
156	typedef struct ev_watcher *W;	251	typedef ev_watcher *W;
157	typedef struct ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
158	typedef struct ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
159		254
160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
161		256
		257	#ifdef _WIN32
162	#include "ev_win32.c"	258	# include "ev_win32.c"
		259	#endif
163		260
164	/*****************************************************************************/	261	/*****************************************************************************/
165		262
166	static void (*syserr_cb)(const char *msg);	263	static void (*syserr_cb)(const char *msg);
167		264
		265	void
168	void ev_set_syserr_cb (void (*cb)(const char *msg))	266	ev_set_syserr_cb (void (*cb)(const char *msg))
169	{	267	{
170	syserr_cb = cb;	268	syserr_cb = cb;
171	}	269	}
172		270
173	static void	271	static void noinline
174	syserr (const char *msg)	272	syserr (const char *msg)
175	{	273	{
176	if (!msg)	274	if (!msg)
177	msg = "(libev) system error";	275	msg = "(libev) system error";
178		276
…		…
185	}	283	}
186	}	284	}
187		285
188	static void *(*alloc)(void *ptr, long size);	286	static void *(*alloc)(void *ptr, long size);
189		287
		288	void
190	void ev_set_allocator (void *(*cb)(void *ptr, long size))	289	ev_set_allocator (void *(*cb)(void *ptr, long size))
191	{	290	{
192	alloc = cb;	291	alloc = cb;
193	}	292	}
194		293
195	static void *	294	inline_speed void *
196	ev_realloc (void *ptr, long size)	295	ev_realloc (void *ptr, long size)
197	{	296	{
198	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
199		298
200	if (!ptr && size)	299	if (!ptr && size)
…		…
214	typedef struct	313	typedef struct
215	{	314	{
216	WL head;	315	WL head;
217	unsigned char events;	316	unsigned char events;
218	unsigned char reify;	317	unsigned char reify;
		318	#if EV_SELECT_IS_WINSOCKET
		319	SOCKET handle;
		320	#endif
219	} ANFD;	321	} ANFD;
220		322
221	typedef struct	323	typedef struct
222	{	324	{
223	W w;	325	W w;
224	int events;	326	int events;
225	} ANPENDING;	327	} ANPENDING;
226		328
		329	#if EV_USE_INOTIFY
		330	typedef struct
		331	{
		332	WL head;
		333	} ANFS;
		334	#endif
		335
227	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
228		337
229	struct ev_loop	338	struct ev_loop
230	{	339	{
231	ev_tstamp ev_rt_now;	340	ev_tstamp ev_rt_now;
		341	#define ev_rt_now ((loop)->ev_rt_now)
232	#define VAR(name,decl) decl;	342	#define VAR(name,decl) decl;
233	#include "ev_vars.h"	343	#include "ev_vars.h"
234	#undef VAR	344	#undef VAR
235	};	345	};
236	#include "ev_wrap.h"	346	#include "ev_wrap.h"
237		347
238	struct ev_loop default_loop_struct;	348	static struct ev_loop default_loop_struct;
239	static struct ev_loop *default_loop;	349	struct ev_loop *ev_default_loop_ptr;
240		350
241	#else	351	#else
242		352
243	ev_tstamp ev_rt_now;	353	ev_tstamp ev_rt_now;
244	#define VAR(name,decl) static decl;	354	#define VAR(name,decl) static decl;
245	#include "ev_vars.h"	355	#include "ev_vars.h"
246	#undef VAR	356	#undef VAR
247		357
248	static int default_loop;	358	static int ev_default_loop_ptr;
249		359
250	#endif	360	#endif
251		361
252	/*****************************************************************************/	362	/*****************************************************************************/
253		363
254	inline ev_tstamp	364	ev_tstamp
255	ev_time (void)	365	ev_time (void)
256	{	366	{
257	#if EV_USE_REALTIME	367	#if EV_USE_REALTIME
258	struct timespec ts;	368	struct timespec ts;
259	clock_gettime (CLOCK_REALTIME, &ts);	369	clock_gettime (CLOCK_REALTIME, &ts);
…		…
263	gettimeofday (&tv, 0);	373	gettimeofday (&tv, 0);
264	return tv.tv_sec + tv.tv_usec * 1e-6;	374	return tv.tv_sec + tv.tv_usec * 1e-6;
265	#endif	375	#endif
266	}	376	}
267		377
268	inline ev_tstamp	378	ev_tstamp inline_size
269	get_clock (void)	379	get_clock (void)
270	{	380	{
271	#if EV_USE_MONOTONIC	381	#if EV_USE_MONOTONIC
272	if (expect_true (have_monotonic))	382	if (expect_true (have_monotonic))
273	{	383	{
…		…
286	{	396	{
287	return ev_rt_now;	397	return ev_rt_now;
288	}	398	}
289	#endif	399	#endif
290		400
291	#define array_roundsize(type,n) ((n) | 4 & ~3)	401	#define array_roundsize(type,n) (((n) | 4) & ~3)
292		402
293	#define array_needsize(type,base,cur,cnt,init) \	403	#define array_needsize(type,base,cur,cnt,init) \
294	if (expect_false ((cnt) > cur)) \	404	if (expect_false ((cnt) > cur)) \
295	{ \	405	{ \
296	int newcnt = cur; \	406	int newcnt = cur; \
…		…
311	stem ## max = array_roundsize (stem ## cnt >> 1); \	421	stem ## max = array_roundsize (stem ## cnt >> 1); \
312	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	422	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
314	}	424	}
315		425
316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
318	#define array_free_microshit(stem) \
319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
320
321	#define array_free(stem, idx) \	426	#define array_free(stem, idx) \
322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
323		428
324	/*****************************************************************************/	429	/*****************************************************************************/
325		430
326	static void	431	void noinline
		432	ev_feed_event (EV_P_ void *w, int revents)
		433	{
		434	W w_ = (W)w;
		435
		436	if (expect_false (w_->pending))
		437	{
		438	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
		439	return;
		440	}
		441
		442	w_->pending = ++pendingcnt [ABSPRI (w_)];
		443	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
		444	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
		445	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
		446	}
		447
		448	void inline_size
		449	queue_events (EV_P_ W *events, int eventcnt, int type)
		450	{
		451	int i;
		452
		453	for (i = 0; i < eventcnt; ++i)
		454	ev_feed_event (EV_A_ events [i], type);
		455	}
		456
		457	/*****************************************************************************/
		458
		459	void inline_size
327	anfds_init (ANFD *base, int count)	460	anfds_init (ANFD *base, int count)
328	{	461	{
329	while (count--)	462	while (count--)
330	{	463	{
331	base->head = 0;	464	base->head = 0;
…		…
334		467
335	++base;	468	++base;
336	}	469	}
337	}	470	}
338		471
339	void	472	void inline_speed
340	ev_feed_event (EV_P_ void *w, int revents)
341	{
342	W w_ = (W)w;
343
344	if (w_->pending)
345	{
346	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
347	return;
348	}
349
350	w_->pending = ++pendingcnt [ABSPRI (w_)];
351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
354	}
355
356	static void
357	queue_events (EV_P_ W *events, int eventcnt, int type)
358	{
359	int i;
360
361	for (i = 0; i < eventcnt; ++i)
362	ev_feed_event (EV_A_ events [i], type);
363	}
364
365	inline void
366	fd_event (EV_P_ int fd, int revents)	473	fd_event (EV_P_ int fd, int revents)
367	{	474	{
368	ANFD *anfd = anfds + fd;	475	ANFD *anfd = anfds + fd;
369	struct ev_io *w;	476	ev_io *w;
370		477
371	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	478	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
372	{	479	{
373	int ev = w->events & revents;	480	int ev = w->events & revents;
374		481
375	if (ev)	482	if (ev)
376	ev_feed_event (EV_A_ (W)w, ev);	483	ev_feed_event (EV_A_ (W)w, ev);
…		…
381	ev_feed_fd_event (EV_P_ int fd, int revents)	488	ev_feed_fd_event (EV_P_ int fd, int revents)
382	{	489	{
383	fd_event (EV_A_ fd, revents);	490	fd_event (EV_A_ fd, revents);
384	}	491	}
385		492
386	/*****************************************************************************/	493	void inline_size
387
388	static void
389	fd_reify (EV_P)	494	fd_reify (EV_P)
390	{	495	{
391	int i;	496	int i;
392		497
393	for (i = 0; i < fdchangecnt; ++i)	498	for (i = 0; i < fdchangecnt; ++i)
394	{	499	{
395	int fd = fdchanges [i];	500	int fd = fdchanges [i];
396	ANFD *anfd = anfds + fd;	501	ANFD *anfd = anfds + fd;
397	struct ev_io *w;	502	ev_io *w;
398		503
399	int events = 0;	504	int events = 0;
400		505
401	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	506	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
402	events |= w->events;	507	events |= w->events;
403		508
		509	#if EV_SELECT_IS_WINSOCKET
		510	if (events)
		511	{
		512	unsigned long argp;
		513	anfd->handle = _get_osfhandle (fd);
		514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		515	}
		516	#endif
		517
404	anfd->reify = 0;	518	anfd->reify = 0;
405		519
406	method_modify (EV_A_ fd, anfd->events, events);	520	backend_modify (EV_A_ fd, anfd->events, events);
407	anfd->events = events;	521	anfd->events = events;
408	}	522	}
409		523
410	fdchangecnt = 0;	524	fdchangecnt = 0;
411	}	525	}
412		526
413	static void	527	void inline_size
414	fd_change (EV_P_ int fd)	528	fd_change (EV_P_ int fd)
415	{	529	{
416	if (anfds [fd].reify)	530	if (expect_false (anfds [fd].reify))
417	return;	531	return;
418		532
419	anfds [fd].reify = 1;	533	anfds [fd].reify = 1;
420		534
421	++fdchangecnt;	535	++fdchangecnt;
422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
423	fdchanges [fdchangecnt - 1] = fd;	537	fdchanges [fdchangecnt - 1] = fd;
424	}	538	}
425		539
426	static void	540	void inline_speed
427	fd_kill (EV_P_ int fd)	541	fd_kill (EV_P_ int fd)
428	{	542	{
429	struct ev_io *w;	543	ev_io *w;
430		544
431	while ((w = (struct ev_io *)anfds [fd].head))	545	while ((w = (ev_io *)anfds [fd].head))
432	{	546	{
433	ev_io_stop (EV_A_ w);	547	ev_io_stop (EV_A_ w);
434	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	548	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
435	}	549	}
436	}	550	}
437		551
438	static int	552	int inline_size
439	fd_valid (int fd)	553	fd_valid (int fd)
440	{	554	{
441	#ifdef WIN32	555	#ifdef _WIN32
442	return !!win32_get_osfhandle (fd);	556	return _get_osfhandle (fd) != -1;
443	#else	557	#else
444	return fcntl (fd, F_GETFD) != -1;	558	return fcntl (fd, F_GETFD) != -1;
445	#endif	559	#endif
446	}	560	}
447		561
448	/* called on EBADF to verify fds */	562	/* called on EBADF to verify fds */
449	static void	563	static void noinline
450	fd_ebadf (EV_P)	564	fd_ebadf (EV_P)
451	{	565	{
452	int fd;	566	int fd;
453		567
454	for (fd = 0; fd < anfdmax; ++fd)	568	for (fd = 0; fd < anfdmax; ++fd)
…		…
456	if (!fd_valid (fd) == -1 && errno == EBADF)	570	if (!fd_valid (fd) == -1 && errno == EBADF)
457	fd_kill (EV_A_ fd);	571	fd_kill (EV_A_ fd);
458	}	572	}
459		573
460	/* called on ENOMEM in select/poll to kill some fds and retry */	574	/* called on ENOMEM in select/poll to kill some fds and retry */
461	static void	575	static void noinline
462	fd_enomem (EV_P)	576	fd_enomem (EV_P)
463	{	577	{
464	int fd;	578	int fd;
465		579
466	for (fd = anfdmax; fd--; )	580	for (fd = anfdmax; fd--; )
…		…
469	fd_kill (EV_A_ fd);	583	fd_kill (EV_A_ fd);
470	return;	584	return;
471	}	585	}
472	}	586	}
473		587
474	/* usually called after fork if method needs to re-arm all fds from scratch */	588	/* usually called after fork if backend needs to re-arm all fds from scratch */
475	static void	589	static void noinline
476	fd_rearm_all (EV_P)	590	fd_rearm_all (EV_P)
477	{	591	{
478	int fd;	592	int fd;
479		593
480	/* this should be highly optimised to not do anything but set a flag */
481	for (fd = 0; fd < anfdmax; ++fd)	594	for (fd = 0; fd < anfdmax; ++fd)
482	if (anfds [fd].events)	595	if (anfds [fd].events)
483	{	596	{
484	anfds [fd].events = 0;	597	anfds [fd].events = 0;
485	fd_change (EV_A_ fd);	598	fd_change (EV_A_ fd);
486	}	599	}
487	}	600	}
488		601
489	/*****************************************************************************/	602	/*****************************************************************************/
490		603
491	static void	604	void inline_speed
492	upheap (WT *heap, int k)	605	upheap (WT *heap, int k)
493	{	606	{
494	WT w = heap [k];	607	WT w = heap [k];
495		608
496	while (k && heap [k >> 1]->at > w->at)	609	while (k && heap [k >> 1]->at > w->at)
…		…
503	heap [k] = w;	616	heap [k] = w;
504	((W)heap [k])->active = k + 1;	617	((W)heap [k])->active = k + 1;
505		618
506	}	619	}
507		620
508	static void	621	void inline_speed
509	downheap (WT *heap, int N, int k)	622	downheap (WT *heap, int N, int k)
510	{	623	{
511	WT w = heap [k];	624	WT w = heap [k];
512		625
513	while (k < (N >> 1))	626	while (k < (N >> 1))
…		…
527		640
528	heap [k] = w;	641	heap [k] = w;
529	((W)heap [k])->active = k + 1;	642	((W)heap [k])->active = k + 1;
530	}	643	}
531		644
532	inline void	645	void inline_size
533	adjustheap (WT *heap, int N, int k, ev_tstamp at)	646	adjustheap (WT *heap, int N, int k)
534	{	647	{
535	ev_tstamp old_at = heap [k]->at;	648	upheap (heap, k);
536	heap [k]->at = at;
537
538	if (old_at < at)
539	downheap (heap, N, k);	649	downheap (heap, N, k);
540	else
541	upheap (heap, k);
542	}	650	}
543		651
544	/*****************************************************************************/	652	/*****************************************************************************/
545		653
546	typedef struct	654	typedef struct
…		…
552	static ANSIG *signals;	660	static ANSIG *signals;
553	static int signalmax;	661	static int signalmax;
554		662
555	static int sigpipe [2];	663	static int sigpipe [2];
556	static sig_atomic_t volatile gotsig;	664	static sig_atomic_t volatile gotsig;
557	static struct ev_io sigev;	665	static ev_io sigev;
558		666
559	static void	667	void inline_size
560	signals_init (ANSIG *base, int count)	668	signals_init (ANSIG *base, int count)
561	{	669	{
562	while (count--)	670	while (count--)
563	{	671	{
564	base->head = 0;	672	base->head = 0;
…		…
569	}	677	}
570		678
571	static void	679	static void
572	sighandler (int signum)	680	sighandler (int signum)
573	{	681	{
574	#if WIN32	682	#if _WIN32
575	signal (signum, sighandler);	683	signal (signum, sighandler);
576	#endif	684	#endif
577		685
578	signals [signum - 1].gotsig = 1;	686	signals [signum - 1].gotsig = 1;
579		687
580	if (!gotsig)	688	if (!gotsig)
581	{	689	{
582	int old_errno = errno;	690	int old_errno = errno;
583	gotsig = 1;	691	gotsig = 1;
584	#ifdef WIN32
585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
586	#else
587	write (sigpipe [1], &signum, 1);	692	write (sigpipe [1], &signum, 1);
588	#endif
589	errno = old_errno;	693	errno = old_errno;
590	}	694	}
591	}	695	}
592		696
593	void	697	void noinline
594	ev_feed_signal_event (EV_P_ int signum)	698	ev_feed_signal_event (EV_P_ int signum)
595	{	699	{
596	WL w;	700	WL w;
597		701
598	#if EV_MULTIPLICITY	702	#if EV_MULTIPLICITY
599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	703	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
600	#endif	704	#endif
601		705
602	--signum;	706	--signum;
603		707
604	if (signum < 0 || signum >= signalmax)	708	if (signum < 0 || signum >= signalmax)
…		…
609	for (w = signals [signum].head; w; w = w->next)	713	for (w = signals [signum].head; w; w = w->next)
610	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	714	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
611	}	715	}
612		716
613	static void	717	static void
614	sigcb (EV_P_ struct ev_io *iow, int revents)	718	sigcb (EV_P_ ev_io *iow, int revents)
615	{	719	{
616	int signum;	720	int signum;
617		721
618	#ifdef WIN32
619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
620	#else
621	read (sigpipe [0], &revents, 1);	722	read (sigpipe [0], &revents, 1);
622	#endif
623	gotsig = 0;	723	gotsig = 0;
624		724
625	for (signum = signalmax; signum--; )	725	for (signum = signalmax; signum--; )
626	if (signals [signum].gotsig)	726	if (signals [signum].gotsig)
627	ev_feed_signal_event (EV_A_ signum + 1);	727	ev_feed_signal_event (EV_A_ signum + 1);
628	}	728	}
629		729
630	static void	730	void inline_size
		731	fd_intern (int fd)
		732	{
		733	#ifdef _WIN32
		734	int arg = 1;
		735	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		736	#else
		737	fcntl (fd, F_SETFD, FD_CLOEXEC);
		738	fcntl (fd, F_SETFL, O_NONBLOCK);
		739	#endif
		740	}
		741
		742	static void noinline
631	siginit (EV_P)	743	siginit (EV_P)
632	{	744	{
633	#ifndef WIN32	745	fd_intern (sigpipe [0]);
634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	746	fd_intern (sigpipe [1]);
635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
636
637	/* rather than sort out wether we really need nb, set it */
638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
640	#endif
641		747
642	ev_io_set (&sigev, sigpipe [0], EV_READ);	748	ev_io_set (&sigev, sigpipe [0], EV_READ);
643	ev_io_start (EV_A_ &sigev);	749	ev_io_start (EV_A_ &sigev);
644	ev_unref (EV_A); /* child watcher should not keep loop alive */	750	ev_unref (EV_A); /* child watcher should not keep loop alive */
645	}	751	}
646		752
647	/*****************************************************************************/	753	/*****************************************************************************/
648		754
649	static struct ev_child *childs [PID_HASHSIZE];	755	static ev_child *childs [EV_PID_HASHSIZE];
650		756
651	#ifndef WIN32	757	#ifndef _WIN32
652		758
653	static struct ev_signal childev;	759	static ev_signal childev;
654		760
655	#ifndef WCONTINUED	761	void inline_speed
656	# define WCONTINUED 0
657	#endif
658
659	static void
660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	762	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
661	{	763	{
662	struct ev_child *w;	764	ev_child *w;
663		765
664	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)	766	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
665	if (w->pid == pid || !w->pid)	767	if (w->pid == pid || !w->pid)
666	{	768	{
667	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	769	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
668	w->rpid = pid;	770	w->rpid = pid;
669	w->rstatus = status;	771	w->rstatus = status;
670	ev_feed_event (EV_A_ (W)w, EV_CHILD);	772	ev_feed_event (EV_A_ (W)w, EV_CHILD);
671	}	773	}
672	}	774	}
673		775
		776	#ifndef WCONTINUED
		777	# define WCONTINUED 0
		778	#endif
		779
674	static void	780	static void
675	childcb (EV_P_ struct ev_signal *sw, int revents)	781	childcb (EV_P_ ev_signal *sw, int revents)
676	{	782	{
677	int pid, status;	783	int pid, status;
678		784
		785	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
679	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	786	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
680	{	787	if (!WCONTINUED
		788	|| errno != EINVAL
		789	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		790	return;
		791
681	/* make sure we are called again until all childs have been reaped */	792	/* make sure we are called again until all childs have been reaped */
		793	/* we need to do it this way so that the callback gets called before we continue */
682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	794	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
683		795
684	child_reap (EV_A_ sw, pid, pid, status);	796	child_reap (EV_A_ sw, pid, pid, status);
		797	if (EV_PID_HASHSIZE > 1)
685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	798	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
686	}
687	}	799	}
688		800
689	#endif	801	#endif
690		802
691	/*****************************************************************************/	803	/*****************************************************************************/
692		804
		805	#if EV_USE_PORT
		806	# include "ev_port.c"
		807	#endif
693	#if EV_USE_KQUEUE	808	#if EV_USE_KQUEUE
694	# include "ev_kqueue.c"	809	# include "ev_kqueue.c"
695	#endif	810	#endif
696	#if EV_USE_EPOLL	811	#if EV_USE_EPOLL
697	# include "ev_epoll.c"	812	# include "ev_epoll.c"
…		…
714	{	829	{
715	return EV_VERSION_MINOR;	830	return EV_VERSION_MINOR;
716	}	831	}
717		832
718	/* return true if we are running with elevated privileges and should ignore env variables */	833	/* return true if we are running with elevated privileges and should ignore env variables */
719	static int	834	int inline_size
720	enable_secure (void)	835	enable_secure (void)
721	{	836	{
722	#ifdef WIN32	837	#ifdef _WIN32
723	return 0;	838	return 0;
724	#else	839	#else
725	return getuid () != geteuid ()	840	return getuid () != geteuid ()
726	|| getgid () != getegid ();	841	|| getgid () != getegid ();
727	#endif	842	#endif
728	}	843	}
729		844
730	int	845	unsigned int
731	ev_method (EV_P)	846	ev_supported_backends (void)
732	{	847	{
733	return method;	848	unsigned int flags = 0;
734	}
735		849
736	static void	850	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
737	loop_init (EV_P_ int methods)	851	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		852	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		853	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		854	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		855
		856	return flags;
		857	}
		858
		859	unsigned int
		860	ev_recommended_backends (void)
738	{	861	{
739	if (!method)	862	unsigned int flags = ev_supported_backends ();
		863
		864	#ifndef __NetBSD__
		865	/* kqueue is borked on everything but netbsd apparently */
		866	/* it usually doesn't work correctly on anything but sockets and pipes */
		867	flags &= ~EVBACKEND_KQUEUE;
		868	#endif
		869	#ifdef __APPLE__
		870	// flags &= ~EVBACKEND_KQUEUE; for documentation
		871	flags &= ~EVBACKEND_POLL;
		872	#endif
		873
		874	return flags;
		875	}
		876
		877	unsigned int
		878	ev_embeddable_backends (void)
		879	{
		880	return EVBACKEND_EPOLL
		881	| EVBACKEND_KQUEUE
		882	| EVBACKEND_PORT;
		883	}
		884
		885	unsigned int
		886	ev_backend (EV_P)
		887	{
		888	return backend;
		889	}
		890
		891	static void noinline
		892	loop_init (EV_P_ unsigned int flags)
		893	{
		894	if (!backend)
740	{	895	{
741	#if EV_USE_MONOTONIC	896	#if EV_USE_MONOTONIC
742	{	897	{
743	struct timespec ts;	898	struct timespec ts;
744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	899	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
749	ev_rt_now = ev_time ();	904	ev_rt_now = ev_time ();
750	mn_now = get_clock ();	905	mn_now = get_clock ();
751	now_floor = mn_now;	906	now_floor = mn_now;
752	rtmn_diff = ev_rt_now - mn_now;	907	rtmn_diff = ev_rt_now - mn_now;
753		908
754	if (methods == EVMETHOD_AUTO)	909	if (!(flags & EVFLAG_NOENV)
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	910	&& !enable_secure ()
		911	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	912	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else
758	methods = EVMETHOD_ANY;
759		913
760	method = 0;	914	if (!(flags & 0x0000ffffUL))
		915	flags |= ev_recommended_backends ();
		916
		917	backend = 0;
		918	backend_fd = -1;
761	#if EV_USE_WIN32	919	#if EV_USE_INOTIFY
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	920	fs_fd = -2;
		921	#endif
		922
		923	#if EV_USE_PORT
		924	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
763	#endif	925	#endif
764	#if EV_USE_KQUEUE	926	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	927	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
766	#endif	928	#endif
767	#if EV_USE_EPOLL	929	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	930	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
769	#endif	931	#endif
770	#if EV_USE_POLL	932	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	933	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
772	#endif	934	#endif
773	#if EV_USE_SELECT	935	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	936	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
775	#endif	937	#endif
776		938
777	ev_init (&sigev, sigcb);	939	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	940	ev_set_priority (&sigev, EV_MAXPRI);
779	}	941	}
780	}	942	}
781		943
782	void	944	static void noinline
783	loop_destroy (EV_P)	945	loop_destroy (EV_P)
784	{	946	{
785	int i;	947	int i;
786		948
787	#if EV_USE_WIN32	949	#if EV_USE_INOTIFY
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	950	if (fs_fd >= 0)
		951	close (fs_fd);
		952	#endif
		953
		954	if (backend_fd >= 0)
		955	close (backend_fd);
		956
		957	#if EV_USE_PORT
		958	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	959	#endif
790	#if EV_USE_KQUEUE	960	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	961	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	962	#endif
793	#if EV_USE_EPOLL	963	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	964	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	965	#endif
796	#if EV_USE_POLL	966	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	967	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	968	#endif
799	#if EV_USE_SELECT	969	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	970	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	971	#endif
802		972
803	for (i = NUMPRI; i--; )	973	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	974	array_free (pending, [i]);
805		975
806	/* have to use the microsoft-never-gets-it-right macro */	976	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	977	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	978	array_free (timer, EMPTY0);
809	array_free_microshit (periodic);	979	#if EV_PERIODIC_ENABLE
810	array_free_microshit (idle);	980	array_free (periodic, EMPTY0);
811	array_free_microshit (prepare);	981	#endif
812	array_free_microshit (check);	982	array_free (idle, EMPTY0);
		983	array_free (prepare, EMPTY0);
		984	array_free (check, EMPTY0);
813		985
814	method = 0;	986	backend = 0;
815	}	987	}
816		988
817	static void	989	void inline_size infy_fork (EV_P);
		990
		991	void inline_size
818	loop_fork (EV_P)	992	loop_fork (EV_P)
819	{	993	{
		994	#if EV_USE_PORT
		995	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		996	#endif
		997	#if EV_USE_KQUEUE
		998	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		999	#endif
820	#if EV_USE_EPOLL	1000	#if EV_USE_EPOLL
821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1001	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
822	#endif	1002	#endif
823	#if EV_USE_KQUEUE	1003	#if EV_USE_INOTIFY
824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1004	infy_fork (EV_A);
825	#endif	1005	#endif
826		1006
827	if (ev_is_active (&sigev))	1007	if (ev_is_active (&sigev))
828	{	1008	{
829	/* default loop */	1009	/* default loop */
…		…
842	postfork = 0;	1022	postfork = 0;
843	}	1023	}
844		1024
845	#if EV_MULTIPLICITY	1025	#if EV_MULTIPLICITY
846	struct ev_loop *	1026	struct ev_loop *
847	ev_loop_new (int methods)	1027	ev_loop_new (unsigned int flags)
848	{	1028	{
849	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1029	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
850		1030
851	memset (loop, 0, sizeof (struct ev_loop));	1031	memset (loop, 0, sizeof (struct ev_loop));
852		1032
853	loop_init (EV_A_ methods);	1033	loop_init (EV_A_ flags);
854		1034
855	if (ev_method (EV_A))	1035	if (ev_backend (EV_A))
856	return loop;	1036	return loop;
857		1037
858	return 0;	1038	return 0;
859	}	1039	}
860		1040
…		…
873		1053
874	#endif	1054	#endif
875		1055
876	#if EV_MULTIPLICITY	1056	#if EV_MULTIPLICITY
877	struct ev_loop *	1057	struct ev_loop *
		1058	ev_default_loop_init (unsigned int flags)
878	#else	1059	#else
879	int	1060	int
		1061	ev_default_loop (unsigned int flags)
880	#endif	1062	#endif
881	ev_default_loop (int methods)
882	{	1063	{
883	if (sigpipe [0] == sigpipe [1])	1064	if (sigpipe [0] == sigpipe [1])
884	if (pipe (sigpipe))	1065	if (pipe (sigpipe))
885	return 0;	1066	return 0;
886		1067
887	if (!default_loop)	1068	if (!ev_default_loop_ptr)
888	{	1069	{
889	#if EV_MULTIPLICITY	1070	#if EV_MULTIPLICITY
890	struct ev_loop *loop = default_loop = &default_loop_struct;	1071	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
891	#else	1072	#else
892	default_loop = 1;	1073	ev_default_loop_ptr = 1;
893	#endif	1074	#endif
894		1075
895	loop_init (EV_A_ methods);	1076	loop_init (EV_A_ flags);
896		1077
897	if (ev_method (EV_A))	1078	if (ev_backend (EV_A))
898	{	1079	{
899	siginit (EV_A);	1080	siginit (EV_A);
900		1081
901	#ifndef WIN32	1082	#ifndef _WIN32
902	ev_signal_init (&childev, childcb, SIGCHLD);	1083	ev_signal_init (&childev, childcb, SIGCHLD);
903	ev_set_priority (&childev, EV_MAXPRI);	1084	ev_set_priority (&childev, EV_MAXPRI);
904	ev_signal_start (EV_A_ &childev);	1085	ev_signal_start (EV_A_ &childev);
905	ev_unref (EV_A); /* child watcher should not keep loop alive */	1086	ev_unref (EV_A); /* child watcher should not keep loop alive */
906	#endif	1087	#endif
907	}	1088	}
908	else	1089	else
909	default_loop = 0;	1090	ev_default_loop_ptr = 0;
910	}	1091	}
911		1092
912	return default_loop;	1093	return ev_default_loop_ptr;
913	}	1094	}
914		1095
915	void	1096	void
916	ev_default_destroy (void)	1097	ev_default_destroy (void)
917	{	1098	{
918	#if EV_MULTIPLICITY	1099	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1100	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1101	#endif
921		1102
922	#ifndef WIN32	1103	#ifndef _WIN32
923	ev_ref (EV_A); /* child watcher */	1104	ev_ref (EV_A); /* child watcher */
924	ev_signal_stop (EV_A_ &childev);	1105	ev_signal_stop (EV_A_ &childev);
925	#endif	1106	#endif
926		1107
927	ev_ref (EV_A); /* signal watcher */	1108	ev_ref (EV_A); /* signal watcher */
…		…
935		1116
936	void	1117	void
937	ev_default_fork (void)	1118	ev_default_fork (void)
938	{	1119	{
939	#if EV_MULTIPLICITY	1120	#if EV_MULTIPLICITY
940	struct ev_loop *loop = default_loop;	1121	struct ev_loop *loop = ev_default_loop_ptr;
941	#endif	1122	#endif
942		1123
943	if (method)	1124	if (backend)
944	postfork = 1;	1125	postfork = 1;
945	}	1126	}
946		1127
947	/*****************************************************************************/	1128	/*****************************************************************************/
948		1129
949	static int	1130	int inline_size
950	any_pending (EV_P)	1131	any_pending (EV_P)
951	{	1132	{
952	int pri;	1133	int pri;
953		1134
954	for (pri = NUMPRI; pri--; )	1135	for (pri = NUMPRI; pri--; )
…		…
956	return 1;	1137	return 1;
957		1138
958	return 0;	1139	return 0;
959	}	1140	}
960		1141
961	static void	1142	void inline_speed
962	call_pending (EV_P)	1143	call_pending (EV_P)
963	{	1144	{
964	int pri;	1145	int pri;
965		1146
966	for (pri = NUMPRI; pri--; )	1147	for (pri = NUMPRI; pri--; )
967	while (pendingcnt [pri])	1148	while (pendingcnt [pri])
968	{	1149	{
969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1150	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
970		1151
971	if (p->w)	1152	if (expect_true (p->w))
972	{	1153	{
		1154	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1155
973	p->w->pending = 0;	1156	p->w->pending = 0;
974	EV_CB_INVOKE (p->w, p->events);	1157	EV_CB_INVOKE (p->w, p->events);
975	}	1158	}
976	}	1159	}
977	}	1160	}
978		1161
979	static void	1162	void inline_size
980	timers_reify (EV_P)	1163	timers_reify (EV_P)
981	{	1164	{
982	while (timercnt && ((WT)timers [0])->at <= mn_now)	1165	while (timercnt && ((WT)timers [0])->at <= mn_now)
983	{	1166	{
984	struct ev_timer *w = timers [0];	1167	ev_timer *w = timers [0];
985		1168
986	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1169	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
987		1170
988	/* first reschedule or stop timer */	1171	/* first reschedule or stop timer */
989	if (w->repeat)	1172	if (w->repeat)
990	{	1173	{
991	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1174	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1175
992	((WT)w)->at = mn_now + w->repeat;	1176	((WT)w)->at += w->repeat;
		1177	if (((WT)w)->at < mn_now)
		1178	((WT)w)->at = mn_now;
		1179
993	downheap ((WT *)timers, timercnt, 0);	1180	downheap ((WT *)timers, timercnt, 0);
994	}	1181	}
995	else	1182	else
996	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1183	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
997		1184
998	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1185	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
999	}	1186	}
1000	}	1187	}
1001		1188
1002	static void	1189	#if EV_PERIODIC_ENABLE
		1190	void inline_size
1003	periodics_reify (EV_P)	1191	periodics_reify (EV_P)
1004	{	1192	{
1005	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1193	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1006	{	1194	{
1007	struct ev_periodic *w = periodics [0];	1195	ev_periodic *w = periodics [0];
1008		1196
1009	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1197	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1010		1198
1011	/* first reschedule or stop timer */	1199	/* first reschedule or stop timer */
1012	if (w->reschedule_cb)	1200	if (w->reschedule_cb)
1013	{	1201	{
1014	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1202	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1015
1016	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1203	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1017	downheap ((WT *)periodics, periodiccnt, 0);	1204	downheap ((WT *)periodics, periodiccnt, 0);
1018	}	1205	}
1019	else if (w->interval)	1206	else if (w->interval)
1020	{	1207	{
…		…
1027		1214
1028	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1215	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1029	}	1216	}
1030	}	1217	}
1031		1218
1032	static void	1219	static void noinline
1033	periodics_reschedule (EV_P)	1220	periodics_reschedule (EV_P)
1034	{	1221	{
1035	int i;	1222	int i;
1036		1223
1037	/* adjust periodics after time jump */	1224	/* adjust periodics after time jump */
1038	for (i = 0; i < periodiccnt; ++i)	1225	for (i = 0; i < periodiccnt; ++i)
1039	{	1226	{
1040	struct ev_periodic *w = periodics [i];	1227	ev_periodic *w = periodics [i];
1041		1228
1042	if (w->reschedule_cb)	1229	if (w->reschedule_cb)
1043	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1230	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1044	else if (w->interval)	1231	else if (w->interval)
1045	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1232	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1047		1234
1048	/* now rebuild the heap */	1235	/* now rebuild the heap */
1049	for (i = periodiccnt >> 1; i--; )	1236	for (i = periodiccnt >> 1; i--; )
1050	downheap ((WT *)periodics, periodiccnt, i);	1237	downheap ((WT *)periodics, periodiccnt, i);
1051	}	1238	}
		1239	#endif
1052		1240
1053	inline int	1241	int inline_size
1054	time_update_monotonic (EV_P)	1242	time_update_monotonic (EV_P)
1055	{	1243	{
1056	mn_now = get_clock ();	1244	mn_now = get_clock ();
1057		1245
1058	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1246	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
…		…
1066	ev_rt_now = ev_time ();	1254	ev_rt_now = ev_time ();
1067	return 1;	1255	return 1;
1068	}	1256	}
1069	}	1257	}
1070		1258
1071	static void	1259	void inline_size
1072	time_update (EV_P)	1260	time_update (EV_P)
1073	{	1261	{
1074	int i;	1262	int i;
1075		1263
1076	#if EV_USE_MONOTONIC	1264	#if EV_USE_MONOTONIC
…		…
1078	{	1266	{
1079	if (time_update_monotonic (EV_A))	1267	if (time_update_monotonic (EV_A))
1080	{	1268	{
1081	ev_tstamp odiff = rtmn_diff;	1269	ev_tstamp odiff = rtmn_diff;
1082		1270
1083	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1271	/* loop a few times, before making important decisions.
		1272	* on the choice of "4": one iteration isn't enough,
		1273	* in case we get preempted during the calls to
		1274	* ev_time and get_clock. a second call is almost guaranteed
		1275	* to succeed in that case, though. and looping a few more times
		1276	* doesn't hurt either as we only do this on time-jumps or
		1277	* in the unlikely event of having been preempted here.
		1278	*/
		1279	for (i = 4; --i; )
1084	{	1280	{
1085	rtmn_diff = ev_rt_now - mn_now;	1281	rtmn_diff = ev_rt_now - mn_now;
1086		1282
1087	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1283	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1088	return; /* all is well */	1284	return; /* all is well */
…		…
1090	ev_rt_now = ev_time ();	1286	ev_rt_now = ev_time ();
1091	mn_now = get_clock ();	1287	mn_now = get_clock ();
1092	now_floor = mn_now;	1288	now_floor = mn_now;
1093	}	1289	}
1094		1290
		1291	# if EV_PERIODIC_ENABLE
1095	periodics_reschedule (EV_A);	1292	periodics_reschedule (EV_A);
		1293	# endif
1096	/* no timer adjustment, as the monotonic clock doesn't jump */	1294	/* no timer adjustment, as the monotonic clock doesn't jump */
1097	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1295	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1098	}	1296	}
1099	}	1297	}
1100	else	1298	else
…		…
1102	{	1300	{
1103	ev_rt_now = ev_time ();	1301	ev_rt_now = ev_time ();
1104		1302
1105	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1303	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1106	{	1304	{
		1305	#if EV_PERIODIC_ENABLE
1107	periodics_reschedule (EV_A);	1306	periodics_reschedule (EV_A);
		1307	#endif
1108		1308
1109	/* adjust timers. this is easy, as the offset is the same for all */	1309	/* adjust timers. this is easy, as the offset is the same for all of them */
1110	for (i = 0; i < timercnt; ++i)	1310	for (i = 0; i < timercnt; ++i)
1111	((WT)timers [i])->at += ev_rt_now - mn_now;	1311	((WT)timers [i])->at += ev_rt_now - mn_now;
1112	}	1312	}
1113		1313
1114	mn_now = ev_rt_now;	1314	mn_now = ev_rt_now;
…		…
1130	static int loop_done;	1330	static int loop_done;
1131		1331
1132	void	1332	void
1133	ev_loop (EV_P_ int flags)	1333	ev_loop (EV_P_ int flags)
1134	{	1334	{
1135	double block;
1136	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1335	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1336	? EVUNLOOP_ONE
		1337	: EVUNLOOP_CANCEL;
1137		1338
1138	do	1339	while (activecnt)
1139	{	1340	{
		1341	#if EV_FORK_ENABLE
		1342	/* we might have forked, so queue fork handlers */
		1343	if (expect_false (postfork))
		1344	if (forkcnt)
		1345	{
		1346	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1347	call_pending (EV_A);
		1348	}
		1349	#endif
		1350
1140	/* queue check watchers (and execute them) */	1351	/* queue check watchers (and execute them) */
1141	if (expect_false (preparecnt))	1352	if (expect_false (preparecnt))
1142	{	1353	{
1143	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1354	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1144	call_pending (EV_A);	1355	call_pending (EV_A);
…		…
1150		1361
1151	/* update fd-related kernel structures */	1362	/* update fd-related kernel structures */
1152	fd_reify (EV_A);	1363	fd_reify (EV_A);
1153		1364
1154	/* calculate blocking time */	1365	/* calculate blocking time */
		1366	{
		1367	ev_tstamp block;
1155		1368
1156	/* we only need this for !monotonic clock or timers, but as we basically	1369	if (flags & EVLOOP_NONBLOCK || idlecnt)
1157	always have timers, we just calculate it always */	1370	block = 0.; /* do not block at all */
		1371	else
		1372	{
		1373	/* update time to cancel out callback processing overhead */
1158	#if EV_USE_MONOTONIC	1374	#if EV_USE_MONOTONIC
1159	if (expect_true (have_monotonic))	1375	if (expect_true (have_monotonic))
1160	time_update_monotonic (EV_A);	1376	time_update_monotonic (EV_A);
1161	else	1377	else
1162	#endif	1378	#endif
1163	{	1379	{
1164	ev_rt_now = ev_time ();	1380	ev_rt_now = ev_time ();
1165	mn_now = ev_rt_now;	1381	mn_now = ev_rt_now;
1166	}	1382	}
1167		1383
1168	if (flags & EVLOOP_NONBLOCK || idlecnt)
1169	block = 0.;
1170	else
1171	{
1172	block = MAX_BLOCKTIME;	1384	block = MAX_BLOCKTIME;
1173		1385
1174	if (timercnt)	1386	if (timercnt)
1175	{	1387	{
1176	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1388	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1177	if (block > to) block = to;	1389	if (block > to) block = to;
1178	}	1390	}
1179		1391
		1392	#if EV_PERIODIC_ENABLE
1180	if (periodiccnt)	1393	if (periodiccnt)
1181	{	1394	{
1182	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1395	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1183	if (block > to) block = to;	1396	if (block > to) block = to;
1184	}	1397	}
		1398	#endif
1185		1399
1186	if (block < 0.) block = 0.;	1400	if (expect_false (block < 0.)) block = 0.;
1187	}	1401	}
1188		1402
1189	method_poll (EV_A_ block);	1403	backend_poll (EV_A_ block);
		1404	}
1190		1405
1191	/* update ev_rt_now, do magic */	1406	/* update ev_rt_now, do magic */
1192	time_update (EV_A);	1407	time_update (EV_A);
1193		1408
1194	/* queue pending timers and reschedule them */	1409	/* queue pending timers and reschedule them */
1195	timers_reify (EV_A); /* relative timers called last */	1410	timers_reify (EV_A); /* relative timers called last */
		1411	#if EV_PERIODIC_ENABLE
1196	periodics_reify (EV_A); /* absolute timers called first */	1412	periodics_reify (EV_A); /* absolute timers called first */
		1413	#endif
1197		1414
1198	/* queue idle watchers unless io or timers are pending */	1415	/* queue idle watchers unless other events are pending */
1199	if (idlecnt && !any_pending (EV_A))	1416	if (idlecnt && !any_pending (EV_A))
1200	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1417	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1201		1418
1202	/* queue check watchers, to be executed first */	1419	/* queue check watchers, to be executed first */
1203	if (checkcnt)	1420	if (expect_false (checkcnt))
1204	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1421	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1205		1422
1206	call_pending (EV_A);	1423	call_pending (EV_A);
1207	}
1208	while (activecnt && !loop_done);
1209		1424
1210	if (loop_done != 2)	1425	if (expect_false (loop_done))
1211	loop_done = 0;	1426	break;
		1427	}
		1428
		1429	if (loop_done == EVUNLOOP_ONE)
		1430	loop_done = EVUNLOOP_CANCEL;
1212	}	1431	}
1213		1432
1214	void	1433	void
1215	ev_unloop (EV_P_ int how)	1434	ev_unloop (EV_P_ int how)
1216	{	1435	{
1217	loop_done = how;	1436	loop_done = how;
1218	}	1437	}
1219		1438
1220	/*****************************************************************************/	1439	/*****************************************************************************/
1221		1440
1222	inline void	1441	void inline_size
1223	wlist_add (WL *head, WL elem)	1442	wlist_add (WL *head, WL elem)
1224	{	1443	{
1225	elem->next = *head;	1444	elem->next = *head;
1226	*head = elem;	1445	*head = elem;
1227	}	1446	}
1228		1447
1229	inline void	1448	void inline_size
1230	wlist_del (WL *head, WL elem)	1449	wlist_del (WL *head, WL elem)
1231	{	1450	{
1232	while (*head)	1451	while (*head)
1233	{	1452	{
1234	if (*head == elem)	1453	if (*head == elem)
…		…
1239		1458
1240	head = &(*head)->next;	1459	head = &(*head)->next;
1241	}	1460	}
1242	}	1461	}
1243		1462
1244	inline void	1463	void inline_speed
1245	ev_clear_pending (EV_P_ W w)	1464	ev_clear_pending (EV_P_ W w)
1246	{	1465	{
1247	if (w->pending)	1466	if (w->pending)
1248	{	1467	{
1249	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1468	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1250	w->pending = 0;	1469	w->pending = 0;
1251	}	1470	}
1252	}	1471	}
1253		1472
1254	inline void	1473	void inline_speed
1255	ev_start (EV_P_ W w, int active)	1474	ev_start (EV_P_ W w, int active)
1256	{	1475	{
1257	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1476	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1258	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1477	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1259		1478
1260	w->active = active;	1479	w->active = active;
1261	ev_ref (EV_A);	1480	ev_ref (EV_A);
1262	}	1481	}
1263		1482
1264	inline void	1483	void inline_size
1265	ev_stop (EV_P_ W w)	1484	ev_stop (EV_P_ W w)
1266	{	1485	{
1267	ev_unref (EV_A);	1486	ev_unref (EV_A);
1268	w->active = 0;	1487	w->active = 0;
1269	}	1488	}
1270		1489
1271	/*****************************************************************************/	1490	/*****************************************************************************/
1272		1491
1273	void	1492	void
1274	ev_io_start (EV_P_ struct ev_io *w)	1493	ev_io_start (EV_P_ ev_io *w)
1275	{	1494	{
1276	int fd = w->fd;	1495	int fd = w->fd;
1277		1496
1278	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1279	return;	1498	return;
1280		1499
1281	assert (("ev_io_start called with negative fd", fd >= 0));	1500	assert (("ev_io_start called with negative fd", fd >= 0));
1282		1501
1283	ev_start (EV_A_ (W)w, 1);	1502	ev_start (EV_A_ (W)w, 1);
…		…
1286		1505
1287	fd_change (EV_A_ fd);	1506	fd_change (EV_A_ fd);
1288	}	1507	}
1289		1508
1290	void	1509	void
1291	ev_io_stop (EV_P_ struct ev_io *w)	1510	ev_io_stop (EV_P_ ev_io *w)
1292	{	1511	{
1293	ev_clear_pending (EV_A_ (W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1294	if (!ev_is_active (w))	1513	if (expect_false (!ev_is_active (w)))
1295	return;	1514	return;
1296		1515
1297	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1516	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1298		1517
1299	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1518	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1301		1520
1302	fd_change (EV_A_ w->fd);	1521	fd_change (EV_A_ w->fd);
1303	}	1522	}
1304		1523
1305	void	1524	void
1306	ev_timer_start (EV_P_ struct ev_timer *w)	1525	ev_timer_start (EV_P_ ev_timer *w)
1307	{	1526	{
1308	if (ev_is_active (w))	1527	if (expect_false (ev_is_active (w)))
1309	return;	1528	return;
1310		1529
1311	((WT)w)->at += mn_now;	1530	((WT)w)->at += mn_now;
1312		1531
1313	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1532	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1314		1533
1315	ev_start (EV_A_ (W)w, ++timercnt);	1534	ev_start (EV_A_ (W)w, ++timercnt);
1316	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1535	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1317	timers [timercnt - 1] = w;	1536	timers [timercnt - 1] = w;
1318	upheap ((WT *)timers, timercnt - 1);	1537	upheap ((WT *)timers, timercnt - 1);
1319		1538
		1539	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
		1540	}
		1541
		1542	void
		1543	ev_timer_stop (EV_P_ ev_timer *w)
		1544	{
		1545	ev_clear_pending (EV_A_ (W)w);
		1546	if (expect_false (!ev_is_active (w)))
		1547	return;
		1548
1320	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1549	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1321	}
1322		1550
1323	void	1551	{
1324	ev_timer_stop (EV_P_ struct ev_timer *w)	1552	int active = ((W)w)->active;
1325	{
1326	ev_clear_pending (EV_A_ (W)w);
1327	if (!ev_is_active (w))
1328	return;
1329		1553
1330	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1554	if (expect_true (--active < --timercnt))
1331
1332	if (((W)w)->active < timercnt--)
1333	{	1555	{
1334	timers [((W)w)->active - 1] = timers [timercnt];	1556	timers [active] = timers [timercnt];
1335	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1557	adjustheap ((WT *)timers, timercnt, active);
1336	}	1558	}
		1559	}
1337		1560
1338	((WT)w)->at = w->repeat;	1561	((WT)w)->at -= mn_now;
1339		1562
1340	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1341	}	1564	}
1342		1565
1343	void	1566	void
1344	ev_timer_again (EV_P_ struct ev_timer *w)	1567	ev_timer_again (EV_P_ ev_timer *w)
1345	{	1568	{
1346	if (ev_is_active (w))	1569	if (ev_is_active (w))
1347	{	1570	{
1348	if (w->repeat)	1571	if (w->repeat)
		1572	{
		1573	((WT)w)->at = mn_now + w->repeat;
1349	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1574	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1575	}
1350	else	1576	else
1351	ev_timer_stop (EV_A_ w);	1577	ev_timer_stop (EV_A_ w);
1352	}	1578	}
1353	else if (w->repeat)	1579	else if (w->repeat)
		1580	{
		1581	w->at = w->repeat;
1354	ev_timer_start (EV_A_ w);	1582	ev_timer_start (EV_A_ w);
		1583	}
1355	}	1584	}
1356		1585
		1586	#if EV_PERIODIC_ENABLE
1357	void	1587	void
1358	ev_periodic_start (EV_P_ struct ev_periodic *w)	1588	ev_periodic_start (EV_P_ ev_periodic *w)
1359	{	1589	{
1360	if (ev_is_active (w))	1590	if (expect_false (ev_is_active (w)))
1361	return;	1591	return;
1362		1592
1363	if (w->reschedule_cb)	1593	if (w->reschedule_cb)
1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1594	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1365	else if (w->interval)	1595	else if (w->interval)
…		…
1368	/* this formula differs from the one in periodic_reify because we do not always round up */	1598	/* this formula differs from the one in periodic_reify because we do not always round up */
1369	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1599	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1370	}	1600	}
1371		1601
1372	ev_start (EV_A_ (W)w, ++periodiccnt);	1602	ev_start (EV_A_ (W)w, ++periodiccnt);
1373	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1603	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1374	periodics [periodiccnt - 1] = w;	1604	periodics [periodiccnt - 1] = w;
1375	upheap ((WT *)periodics, periodiccnt - 1);	1605	upheap ((WT *)periodics, periodiccnt - 1);
1376		1606
		1607	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
		1608	}
		1609
		1610	void
		1611	ev_periodic_stop (EV_P_ ev_periodic *w)
		1612	{
		1613	ev_clear_pending (EV_A_ (W)w);
		1614	if (expect_false (!ev_is_active (w)))
		1615	return;
		1616
1377	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1617	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1378	}
1379		1618
1380	void	1619	{
1381	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1620	int active = ((W)w)->active;
1382	{
1383	ev_clear_pending (EV_A_ (W)w);
1384	if (!ev_is_active (w))
1385	return;
1386		1621
1387	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1622	if (expect_true (--active < --periodiccnt))
1388
1389	if (((W)w)->active < periodiccnt--)
1390	{	1623	{
1391	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1624	periodics [active] = periodics [periodiccnt];
1392	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1625	adjustheap ((WT *)periodics, periodiccnt, active);
1393	}	1626	}
		1627	}
1394		1628
1395	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1396	}	1630	}
1397		1631
1398	void	1632	void
1399	ev_periodic_again (EV_P_ struct ev_periodic *w)	1633	ev_periodic_again (EV_P_ ev_periodic *w)
1400	{	1634	{
1401	/* TODO: use adjustheap and recalculation */	1635	/* TODO: use adjustheap and recalculation */
1402	ev_periodic_stop (EV_A_ w);	1636	ev_periodic_stop (EV_A_ w);
1403	ev_periodic_start (EV_A_ w);	1637	ev_periodic_start (EV_A_ w);
1404	}	1638	}
1405		1639	#endif
1406	void
1407	ev_idle_start (EV_P_ struct ev_idle *w)
1408	{
1409	if (ev_is_active (w))
1410	return;
1411
1412	ev_start (EV_A_ (W)w, ++idlecnt);
1413	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1414	idles [idlecnt - 1] = w;
1415	}
1416
1417	void
1418	ev_idle_stop (EV_P_ struct ev_idle *w)
1419	{
1420	ev_clear_pending (EV_A_ (W)w);
1421	if (ev_is_active (w))
1422	return;
1423
1424	idles [((W)w)->active - 1] = idles [--idlecnt];
1425	ev_stop (EV_A_ (W)w);
1426	}
1427
1428	void
1429	ev_prepare_start (EV_P_ struct ev_prepare *w)
1430	{
1431	if (ev_is_active (w))
1432	return;
1433
1434	ev_start (EV_A_ (W)w, ++preparecnt);
1435	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1436	prepares [preparecnt - 1] = w;
1437	}
1438
1439	void
1440	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1441	{
1442	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))
1444	return;
1445
1446	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1447	ev_stop (EV_A_ (W)w);
1448	}
1449
1450	void
1451	ev_check_start (EV_P_ struct ev_check *w)
1452	{
1453	if (ev_is_active (w))
1454	return;
1455
1456	ev_start (EV_A_ (W)w, ++checkcnt);
1457	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1458	checks [checkcnt - 1] = w;
1459	}
1460
1461	void
1462	ev_check_stop (EV_P_ struct ev_check *w)
1463	{
1464	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))
1466	return;
1467
1468	checks [((W)w)->active - 1] = checks [--checkcnt];
1469	ev_stop (EV_A_ (W)w);
1470	}
1471		1640
1472	#ifndef SA_RESTART	1641	#ifndef SA_RESTART
1473	# define SA_RESTART 0	1642	# define SA_RESTART 0
1474	#endif	1643	#endif
1475		1644
1476	void	1645	void
1477	ev_signal_start (EV_P_ struct ev_signal *w)	1646	ev_signal_start (EV_P_ ev_signal *w)
1478	{	1647	{
1479	#if EV_MULTIPLICITY	1648	#if EV_MULTIPLICITY
1480	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1649	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1481	#endif	1650	#endif
1482	if (ev_is_active (w))	1651	if (expect_false (ev_is_active (w)))
1483	return;	1652	return;
1484		1653
1485	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1654	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1486		1655
1487	ev_start (EV_A_ (W)w, 1);	1656	ev_start (EV_A_ (W)w, 1);
1488	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1657	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1489	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1658	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1490		1659
1491	if (!((WL)w)->next)	1660	if (!((WL)w)->next)
1492	{	1661	{
1493	#if WIN32	1662	#if _WIN32
1494	signal (w->signum, sighandler);	1663	signal (w->signum, sighandler);
1495	#else	1664	#else
1496	struct sigaction sa;	1665	struct sigaction sa;
1497	sa.sa_handler = sighandler;	1666	sa.sa_handler = sighandler;
1498	sigfillset (&sa.sa_mask);	1667	sigfillset (&sa.sa_mask);
…		…
1501	#endif	1670	#endif
1502	}	1671	}
1503	}	1672	}
1504		1673
1505	void	1674	void
1506	ev_signal_stop (EV_P_ struct ev_signal *w)	1675	ev_signal_stop (EV_P_ ev_signal *w)
1507	{	1676	{
1508	ev_clear_pending (EV_A_ (W)w);	1677	ev_clear_pending (EV_A_ (W)w);
1509	if (!ev_is_active (w))	1678	if (expect_false (!ev_is_active (w)))
1510	return;	1679	return;
1511		1680
1512	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1681	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1513	ev_stop (EV_A_ (W)w);	1682	ev_stop (EV_A_ (W)w);
1514		1683
1515	if (!signals [w->signum - 1].head)	1684	if (!signals [w->signum - 1].head)
1516	signal (w->signum, SIG_DFL);	1685	signal (w->signum, SIG_DFL);
1517	}	1686	}
1518		1687
1519	void	1688	void
1520	ev_child_start (EV_P_ struct ev_child *w)	1689	ev_child_start (EV_P_ ev_child *w)
1521	{	1690	{
1522	#if EV_MULTIPLICITY	1691	#if EV_MULTIPLICITY
1523	assert (("child watchers are only supported in the default loop", loop == default_loop));	1692	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1524	#endif	1693	#endif
1525	if (ev_is_active (w))	1694	if (expect_false (ev_is_active (w)))
1526	return;	1695	return;
1527		1696
1528	ev_start (EV_A_ (W)w, 1);	1697	ev_start (EV_A_ (W)w, 1);
1529	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1698	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1530	}	1699	}
1531		1700
1532	void	1701	void
1533	ev_child_stop (EV_P_ struct ev_child *w)	1702	ev_child_stop (EV_P_ ev_child *w)
1534	{	1703	{
1535	ev_clear_pending (EV_A_ (W)w);	1704	ev_clear_pending (EV_A_ (W)w);
1536	if (ev_is_active (w))	1705	if (expect_false (!ev_is_active (w)))
1537	return;	1706	return;
1538		1707
1539	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1708	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1540	ev_stop (EV_A_ (W)w);	1709	ev_stop (EV_A_ (W)w);
1541	}	1710	}
1542		1711
		1712	#if EV_STAT_ENABLE
		1713
		1714	# ifdef _WIN32
		1715	# undef lstat
		1716	# define lstat(a,b) _stati64 (a,b)
		1717	# endif
		1718
		1719	#define DEF_STAT_INTERVAL 5.0074891
		1720	#define MIN_STAT_INTERVAL 0.1074891
		1721
		1722	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1723
		1724	#if EV_USE_INOTIFY
		1725	# define EV_INOTIFY_BUFSIZE 8192
		1726
		1727	static void noinline
		1728	infy_add (EV_P_ ev_stat *w)
		1729	{
		1730	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
		1731
		1732	if (w->wd < 0)
		1733	{
		1734	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1735
		1736	/* monitor some parent directory for speedup hints */
		1737	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1738	{
		1739	char path [4096];
		1740	strcpy (path, w->path);
		1741
		1742	do
		1743	{
		1744	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1745	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1746
		1747	char *pend = strrchr (path, '/');
		1748
		1749	if (!pend)
		1750	break; /* whoops, no '/', complain to your admin */
		1751
		1752	*pend = 0;
		1753	w->wd = inotify_add_watch (fs_fd, path, mask);
		1754	}
		1755	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1756	}
		1757	}
		1758	else
		1759	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1760
		1761	if (w->wd >= 0)
		1762	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1763	}
		1764
		1765	static void noinline
		1766	infy_del (EV_P_ ev_stat *w)
		1767	{
		1768	int slot;
		1769	int wd = w->wd;
		1770
		1771	if (wd < 0)
		1772	return;
		1773
		1774	w->wd = -2;
		1775	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1776	wlist_del (&fs_hash [slot].head, (WL)w);
		1777
		1778	/* remove this watcher, if others are watching it, they will rearm */
		1779	inotify_rm_watch (fs_fd, wd);
		1780	}
		1781
		1782	static void noinline
		1783	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1784	{
		1785	if (slot < 0)
		1786	/* overflow, need to check for all hahs slots */
		1787	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1788	infy_wd (EV_A_ slot, wd, ev);
		1789	else
		1790	{
		1791	WL w_;
		1792
		1793	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1794	{
		1795	ev_stat *w = (ev_stat *)w_;
		1796	w_ = w_->next; /* lets us remove this watcher and all before it */
		1797
		1798	if (w->wd == wd || wd == -1)
		1799	{
		1800	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1801	{
		1802	w->wd = -1;
		1803	infy_add (EV_A_ w); /* re-add, no matter what */
		1804	}
		1805
		1806	stat_timer_cb (EV_A_ &w->timer, 0);
		1807	}
		1808	}
		1809	}
		1810	}
		1811
		1812	static void
		1813	infy_cb (EV_P_ ev_io *w, int revents)
		1814	{
		1815	char buf [EV_INOTIFY_BUFSIZE];
		1816	struct inotify_event *ev = (struct inotify_event *)buf;
		1817	int ofs;
		1818	int len = read (fs_fd, buf, sizeof (buf));
		1819
		1820	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1821	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1822	}
		1823
		1824	void inline_size
		1825	infy_init (EV_P)
		1826	{
		1827	if (fs_fd != -2)
		1828	return;
		1829
		1830	fs_fd = inotify_init ();
		1831
		1832	if (fs_fd >= 0)
		1833	{
		1834	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1835	ev_set_priority (&fs_w, EV_MAXPRI);
		1836	ev_io_start (EV_A_ &fs_w);
		1837	}
		1838	}
		1839
		1840	void inline_size
		1841	infy_fork (EV_P)
		1842	{
		1843	int slot;
		1844
		1845	if (fs_fd < 0)
		1846	return;
		1847
		1848	close (fs_fd);
		1849	fs_fd = inotify_init ();
		1850
		1851	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1852	{
		1853	WL w_ = fs_hash [slot].head;
		1854	fs_hash [slot].head = 0;
		1855
		1856	while (w_)
		1857	{
		1858	ev_stat *w = (ev_stat *)w_;
		1859	w_ = w_->next; /* lets us add this watcher */
		1860
		1861	w->wd = -1;
		1862
		1863	if (fs_fd >= 0)
		1864	infy_add (EV_A_ w); /* re-add, no matter what */
		1865	else
		1866	ev_timer_start (EV_A_ &w->timer);
		1867	}
		1868
		1869	}
		1870	}
		1871
		1872	#endif
		1873
		1874	void
		1875	ev_stat_stat (EV_P_ ev_stat *w)
		1876	{
		1877	if (lstat (w->path, &w->attr) < 0)
		1878	w->attr.st_nlink = 0;
		1879	else if (!w->attr.st_nlink)
		1880	w->attr.st_nlink = 1;
		1881	}
		1882
		1883	static void noinline
		1884	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1885	{
		1886	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		1887
		1888	/* we copy this here each the time so that */
		1889	/* prev has the old value when the callback gets invoked */
		1890	w->prev = w->attr;
		1891	ev_stat_stat (EV_A_ w);
		1892
		1893	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1894	if (
		1895	w->prev.st_dev != w->attr.st_dev
		1896	|| w->prev.st_ino != w->attr.st_ino
		1897	|| w->prev.st_mode != w->attr.st_mode
		1898	|| w->prev.st_nlink != w->attr.st_nlink
		1899	|| w->prev.st_uid != w->attr.st_uid
		1900	|| w->prev.st_gid != w->attr.st_gid
		1901	|| w->prev.st_rdev != w->attr.st_rdev
		1902	|| w->prev.st_size != w->attr.st_size
		1903	|| w->prev.st_atime != w->attr.st_atime
		1904	|| w->prev.st_mtime != w->attr.st_mtime
		1905	|| w->prev.st_ctime != w->attr.st_ctime
		1906	) {
		1907	#if EV_USE_INOTIFY
		1908	infy_del (EV_A_ w);
		1909	infy_add (EV_A_ w);
		1910	ev_stat_stat (EV_A_ w); /* avoid race... */
		1911	#endif
		1912
		1913	ev_feed_event (EV_A_ w, EV_STAT);
		1914	}
		1915	}
		1916
		1917	void
		1918	ev_stat_start (EV_P_ ev_stat *w)
		1919	{
		1920	if (expect_false (ev_is_active (w)))
		1921	return;
		1922
		1923	/* since we use memcmp, we need to clear any padding data etc. */
		1924	memset (&w->prev, 0, sizeof (ev_statdata));
		1925	memset (&w->attr, 0, sizeof (ev_statdata));
		1926
		1927	ev_stat_stat (EV_A_ w);
		1928
		1929	if (w->interval < MIN_STAT_INTERVAL)
		1930	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		1931
		1932	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1933	ev_set_priority (&w->timer, ev_priority (w));
		1934
		1935	#if EV_USE_INOTIFY
		1936	infy_init (EV_A);
		1937
		1938	if (fs_fd >= 0)
		1939	infy_add (EV_A_ w);
		1940	else
		1941	#endif
		1942	ev_timer_start (EV_A_ &w->timer);
		1943
		1944	ev_start (EV_A_ (W)w, 1);
		1945	}
		1946
		1947	void
		1948	ev_stat_stop (EV_P_ ev_stat *w)
		1949	{
		1950	ev_clear_pending (EV_A_ (W)w);
		1951	if (expect_false (!ev_is_active (w)))
		1952	return;
		1953
		1954	#if EV_USE_INOTIFY
		1955	infy_del (EV_A_ w);
		1956	#endif
		1957	ev_timer_stop (EV_A_ &w->timer);
		1958
		1959	ev_stop (EV_A_ (W)w);
		1960	}
		1961	#endif
		1962
		1963	void
		1964	ev_idle_start (EV_P_ ev_idle *w)
		1965	{
		1966	if (expect_false (ev_is_active (w)))
		1967	return;
		1968
		1969	ev_start (EV_A_ (W)w, ++idlecnt);
		1970	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1971	idles [idlecnt - 1] = w;
		1972	}
		1973
		1974	void
		1975	ev_idle_stop (EV_P_ ev_idle *w)
		1976	{
		1977	ev_clear_pending (EV_A_ (W)w);
		1978	if (expect_false (!ev_is_active (w)))
		1979	return;
		1980
		1981	{
		1982	int active = ((W)w)->active;
		1983	idles [active - 1] = idles [--idlecnt];
		1984	((W)idles [active - 1])->active = active;
		1985	}
		1986
		1987	ev_stop (EV_A_ (W)w);
		1988	}
		1989
		1990	void
		1991	ev_prepare_start (EV_P_ ev_prepare *w)
		1992	{
		1993	if (expect_false (ev_is_active (w)))
		1994	return;
		1995
		1996	ev_start (EV_A_ (W)w, ++preparecnt);
		1997	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1998	prepares [preparecnt - 1] = w;
		1999	}
		2000
		2001	void
		2002	ev_prepare_stop (EV_P_ ev_prepare *w)
		2003	{
		2004	ev_clear_pending (EV_A_ (W)w);
		2005	if (expect_false (!ev_is_active (w)))
		2006	return;
		2007
		2008	{
		2009	int active = ((W)w)->active;
		2010	prepares [active - 1] = prepares [--preparecnt];
		2011	((W)prepares [active - 1])->active = active;
		2012	}
		2013
		2014	ev_stop (EV_A_ (W)w);
		2015	}
		2016
		2017	void
		2018	ev_check_start (EV_P_ ev_check *w)
		2019	{
		2020	if (expect_false (ev_is_active (w)))
		2021	return;
		2022
		2023	ev_start (EV_A_ (W)w, ++checkcnt);
		2024	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2025	checks [checkcnt - 1] = w;
		2026	}
		2027
		2028	void
		2029	ev_check_stop (EV_P_ ev_check *w)
		2030	{
		2031	ev_clear_pending (EV_A_ (W)w);
		2032	if (expect_false (!ev_is_active (w)))
		2033	return;
		2034
		2035	{
		2036	int active = ((W)w)->active;
		2037	checks [active - 1] = checks [--checkcnt];
		2038	((W)checks [active - 1])->active = active;
		2039	}
		2040
		2041	ev_stop (EV_A_ (W)w);
		2042	}
		2043
		2044	#if EV_EMBED_ENABLE
		2045	void noinline
		2046	ev_embed_sweep (EV_P_ ev_embed *w)
		2047	{
		2048	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2049	}
		2050
		2051	static void
		2052	embed_cb (EV_P_ ev_io *io, int revents)
		2053	{
		2054	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2055
		2056	if (ev_cb (w))
		2057	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2058	else
		2059	ev_embed_sweep (loop, w);
		2060	}
		2061
		2062	void
		2063	ev_embed_start (EV_P_ ev_embed *w)
		2064	{
		2065	if (expect_false (ev_is_active (w)))
		2066	return;
		2067
		2068	{
		2069	struct ev_loop *loop = w->loop;
		2070	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2071	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2072	}
		2073
		2074	ev_set_priority (&w->io, ev_priority (w));
		2075	ev_io_start (EV_A_ &w->io);
		2076
		2077	ev_start (EV_A_ (W)w, 1);
		2078	}
		2079
		2080	void
		2081	ev_embed_stop (EV_P_ ev_embed *w)
		2082	{
		2083	ev_clear_pending (EV_A_ (W)w);
		2084	if (expect_false (!ev_is_active (w)))
		2085	return;
		2086
		2087	ev_io_stop (EV_A_ &w->io);
		2088
		2089	ev_stop (EV_A_ (W)w);
		2090	}
		2091	#endif
		2092
		2093	#if EV_FORK_ENABLE
		2094	void
		2095	ev_fork_start (EV_P_ ev_fork *w)
		2096	{
		2097	if (expect_false (ev_is_active (w)))
		2098	return;
		2099
		2100	ev_start (EV_A_ (W)w, ++forkcnt);
		2101	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2102	forks [forkcnt - 1] = w;
		2103	}
		2104
		2105	void
		2106	ev_fork_stop (EV_P_ ev_fork *w)
		2107	{
		2108	ev_clear_pending (EV_A_ (W)w);
		2109	if (expect_false (!ev_is_active (w)))
		2110	return;
		2111
		2112	{
		2113	int active = ((W)w)->active;
		2114	forks [active - 1] = forks [--forkcnt];
		2115	((W)forks [active - 1])->active = active;
		2116	}
		2117
		2118	ev_stop (EV_A_ (W)w);
		2119	}
		2120	#endif
		2121
1543	/*****************************************************************************/	2122	/*****************************************************************************/
1544		2123
1545	struct ev_once	2124	struct ev_once
1546	{	2125	{
1547	struct ev_io io;	2126	ev_io io;
1548	struct ev_timer to;	2127	ev_timer to;
1549	void (*cb)(int revents, void *arg);	2128	void (*cb)(int revents, void *arg);
1550	void *arg;	2129	void *arg;
1551	};	2130	};
1552		2131
1553	static void	2132	static void
…		…
1562		2141
1563	cb (revents, arg);	2142	cb (revents, arg);
1564	}	2143	}
1565		2144
1566	static void	2145	static void
1567	once_cb_io (EV_P_ struct ev_io *w, int revents)	2146	once_cb_io (EV_P_ ev_io *w, int revents)
1568	{	2147	{
1569	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2148	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1570	}	2149	}
1571		2150
1572	static void	2151	static void
1573	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2152	once_cb_to (EV_P_ ev_timer *w, int revents)
1574	{	2153	{
1575	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2154	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1576	}	2155	}
1577		2156
1578	void	2157	void
1579	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	2158	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1580	{	2159	{
1581	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	2160	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1582		2161
1583	if (!once)	2162	if (expect_false (!once))
		2163	{
1584	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	2164	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1585	else	2165	return;
1586	{	2166	}
		2167
1587	once->cb = cb;	2168	once->cb = cb;
1588	once->arg = arg;	2169	once->arg = arg;
1589		2170
1590	ev_init (&once->io, once_cb_io);	2171	ev_init (&once->io, once_cb_io);
1591	if (fd >= 0)	2172	if (fd >= 0)
1592	{	2173	{
1593	ev_io_set (&once->io, fd, events);	2174	ev_io_set (&once->io, fd, events);
1594	ev_io_start (EV_A_ &once->io);	2175	ev_io_start (EV_A_ &once->io);
1595	}	2176	}
1596		2177
1597	ev_init (&once->to, once_cb_to);	2178	ev_init (&once->to, once_cb_to);
1598	if (timeout >= 0.)	2179	if (timeout >= 0.)
1599	{	2180	{
1600	ev_timer_set (&once->to, timeout, 0.);	2181	ev_timer_set (&once->to, timeout, 0.);
1601	ev_timer_start (EV_A_ &once->to);	2182	ev_timer_start (EV_A_ &once->to);
1602	}
1603	}	2183	}
1604	}	2184	}
1605		2185
1606	#ifdef __cplusplus	2186	#ifdef __cplusplus
1607	}	2187	}

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