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Comparing libev/ev.c (file contents):
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs.
Revision 1.168 by root, Sat Dec 8 14:12:07 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
40	# ifndef EV_USE_MONOTONIC	44	# ifndef EV_USE_MONOTONIC
41	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
42	# endif	46	# endif
43	# ifndef EV_USE_REALTIME	47	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
45	# endif	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
46	# endif	57	# endif
47		58
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_SELECT
		60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
50	# endif	65	# endif
51		66
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_POLL
		68	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
54	# endif	73	# endif
55		74
56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_EPOLL
		76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
58	# endif	81	# endif
59		82
		83	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# 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
62	# endif	105	# endif
63		106
64	#endif	107	#endif
65		108
66	#include <math.h>	109	#include <math.h>
…		…
75	#include <sys/types.h>	118	#include <sys/types.h>
76	#include <time.h>	119	#include <time.h>
77		120
78	#include <signal.h>	121	#include <signal.h>
79		122
80	#ifndef WIN32
81	# include <unistd.h>
82	# include <sys/time.h>
83	# include <sys/wait.h>
84	#endif
85	/**/
86
87	#ifndef EV_USE_MONOTONIC
88	# define EV_USE_MONOTONIC 1
89	#endif
90
91	#ifndef EV_USE_SELECT
92	# define EV_USE_SELECT 1
93	#endif
94
95	#ifndef EV_USE_POLL
96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
97	#endif
98
99	#ifndef EV_USE_EPOLL
100	# define EV_USE_EPOLL 0
101	#endif
102
103	#ifndef EV_USE_KQUEUE
104	# define EV_USE_KQUEUE 0
105	#endif
106
107	#ifndef EV_USE_WIN32
108	# ifdef WIN32
109	# define EV_USE_WIN32 0 /* it does not exist, use select */
110	# undef EV_USE_SELECT
111	# define EV_USE_SELECT 1
112	# else
113	# define EV_USE_WIN32 0
114	# endif
115	#endif
116
117	#ifndef EV_USE_REALTIME
118	# define EV_USE_REALTIME 1
119	#endif
120
121	/**/
122
123	#ifndef CLOCK_MONOTONIC
124	# undef EV_USE_MONOTONIC
125	# define EV_USE_MONOTONIC 0
126	#endif
127
128	#ifndef CLOCK_REALTIME
129	# undef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0
131	#endif
132
133	/**/
134
135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
138	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
139
140	#ifdef EV_H	123	#ifdef EV_H
141	# include EV_H	124	# include EV_H
142	#else	125	#else
143	# include "ev.h"	126	# include "ev.h"
144	#endif	127	#endif
145		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
146	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
147	# 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
148	# 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
149	#else	235	#else
150	# define expect(expr,value) (expr)	236	# define expect(expr,value) (expr)
		237	# define inline_speed static
151	# define inline static	238	# define inline_size static
		239	# define noinline
152	#endif	240	#endif
153		241
154	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
155	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
156		244
157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
159		247
		248	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		249	#define EMPTY2(a,b) /* used to suppress some warnings */
		250
160	typedef struct ev_watcher *W;	251	typedef ev_watcher *W;
161	typedef struct ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
162	typedef struct ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
163		254
164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165		256
166	#ifdef WIN32	257	#ifdef _WIN32
167	# include "ev_win32.c"	258	# include "ev_win32.c"
168	#endif	259	#endif
169		260
170	/*****************************************************************************/	261	/*****************************************************************************/
171		262
172	static void (*syserr_cb)(const char *msg);	263	static void (*syserr_cb)(const char *msg);
173		264
		265	void
174	void ev_set_syserr_cb (void (*cb)(const char *msg))	266	ev_set_syserr_cb (void (*cb)(const char *msg))
175	{	267	{
176	syserr_cb = cb;	268	syserr_cb = cb;
177	}	269	}
178		270
179	static void	271	static void noinline
180	syserr (const char *msg)	272	syserr (const char *msg)
181	{	273	{
182	if (!msg)	274	if (!msg)
183	msg = "(libev) system error";	275	msg = "(libev) system error";
184		276
…		…
191	}	283	}
192	}	284	}
193		285
194	static void *(*alloc)(void *ptr, long size);	286	static void *(*alloc)(void *ptr, long size);
195		287
		288	void
196	void ev_set_allocator (void *(*cb)(void *ptr, long size))	289	ev_set_allocator (void *(*cb)(void *ptr, long size))
197	{	290	{
198	alloc = cb;	291	alloc = cb;
199	}	292	}
200		293
201	static void *	294	inline_speed void *
202	ev_realloc (void *ptr, long size)	295	ev_realloc (void *ptr, long size)
203	{	296	{
204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
205		298
206	if (!ptr && size)	299	if (!ptr && size)
…		…
220	typedef struct	313	typedef struct
221	{	314	{
222	WL head;	315	WL head;
223	unsigned char events;	316	unsigned char events;
224	unsigned char reify;	317	unsigned char reify;
		318	#if EV_SELECT_IS_WINSOCKET
		319	SOCKET handle;
		320	#endif
225	} ANFD;	321	} ANFD;
226		322
227	typedef struct	323	typedef struct
228	{	324	{
229	W w;	325	W w;
230	int events;	326	int events;
231	} ANPENDING;	327	} ANPENDING;
232		328
		329	#if EV_USE_INOTIFY
		330	typedef struct
		331	{
		332	WL head;
		333	} ANFS;
		334	#endif
		335
233	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
234		337
235	struct ev_loop	338	struct ev_loop
236	{	339	{
237	ev_tstamp ev_rt_now;	340	ev_tstamp ev_rt_now;
		341	#define ev_rt_now ((loop)->ev_rt_now)
238	#define VAR(name,decl) decl;	342	#define VAR(name,decl) decl;
239	#include "ev_vars.h"	343	#include "ev_vars.h"
240	#undef VAR	344	#undef VAR
241	};	345	};
242	#include "ev_wrap.h"	346	#include "ev_wrap.h"
243		347
244	struct ev_loop default_loop_struct;	348	static struct ev_loop default_loop_struct;
245	static struct ev_loop *default_loop;	349	struct ev_loop *ev_default_loop_ptr;
246		350
247	#else	351	#else
248		352
249	ev_tstamp ev_rt_now;	353	ev_tstamp ev_rt_now;
250	#define VAR(name,decl) static decl;	354	#define VAR(name,decl) static decl;
251	#include "ev_vars.h"	355	#include "ev_vars.h"
252	#undef VAR	356	#undef VAR
253		357
254	static int default_loop;	358	static int ev_default_loop_ptr;
255		359
256	#endif	360	#endif
257		361
258	/*****************************************************************************/	362	/*****************************************************************************/
259		363
…		…
269	gettimeofday (&tv, 0);	373	gettimeofday (&tv, 0);
270	return tv.tv_sec + tv.tv_usec * 1e-6;	374	return tv.tv_sec + tv.tv_usec * 1e-6;
271	#endif	375	#endif
272	}	376	}
273		377
274	inline ev_tstamp	378	ev_tstamp inline_size
275	get_clock (void)	379	get_clock (void)
276	{	380	{
277	#if EV_USE_MONOTONIC	381	#if EV_USE_MONOTONIC
278	if (expect_true (have_monotonic))	382	if (expect_true (have_monotonic))
279	{	383	{
…		…
292	{	396	{
293	return ev_rt_now;	397	return ev_rt_now;
294	}	398	}
295	#endif	399	#endif
296		400
297	#define array_roundsize(type,n) ((n) | 4 & ~3)	401	int inline_size
		402	array_nextsize (int elem, int cur, int cnt)
		403	{
		404	int ncur = cur + 1;
		405
		406	do
		407	ncur <<= 1;
		408	while (cnt > ncur);
		409
		410	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		411	if (elem * ncur > 4096)
		412	{
		413	ncur *= elem;
		414	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		415	ncur = ncur - sizeof (void *) * 4;
		416	ncur /= elem;
		417	}
		418
		419	return ncur;
		420	}
		421
		422	inline_speed void *
		423	array_realloc (int elem, void *base, int *cur, int cnt)
		424	{
		425	*cur = array_nextsize (elem, *cur, cnt);
		426	return ev_realloc (base, elem * *cur);
		427	}
298		428
299	#define array_needsize(type,base,cur,cnt,init) \	429	#define array_needsize(type,base,cur,cnt,init) \
300	if (expect_false ((cnt) > cur)) \	430	if (expect_false ((cnt) > (cur))) \
301	{ \	431	{ \
302	int newcnt = cur; \	432	int ocur_ = (cur); \
303	do \	433	(base) = (type *)array_realloc \
304	{ \	434	(sizeof (type), (base), &(cur), (cnt)); \
305	newcnt = array_roundsize (type, newcnt << 1); \	435	init ((base) + (ocur_), (cur) - ocur_); \
306	} \
307	while ((cnt) > newcnt); \
308	\
309	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
310	init (base + cur, newcnt - cur); \
311	cur = newcnt; \
312	}	436	}
313		437
		438	#if 0
314	#define array_slim(type,stem) \	439	#define array_slim(type,stem) \
315	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	440	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
316	{ \	441	{ \
317	stem ## max = array_roundsize (stem ## cnt >> 1); \	442	stem ## max = array_roundsize (stem ## cnt >> 1); \
318	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	443	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	444	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
320	}	445	}
321		446	#endif
322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
324	#define array_free_microshit(stem) \
325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
326		447
327	#define array_free(stem, idx) \	448	#define array_free(stem, idx) \
328	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	449	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
329		450
330	/*****************************************************************************/	451	/*****************************************************************************/
331		452
332	static void	453	void noinline
		454	ev_feed_event (EV_P_ void *w, int revents)
		455	{
		456	W w_ = (W)w;
		457
		458	if (expect_false (w_->pending))
		459	{
		460	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
		461	return;
		462	}
		463
		464	w_->pending = ++pendingcnt [ABSPRI (w_)];
		465	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
		466	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
		467	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
		468	}
		469
		470	void inline_size
		471	queue_events (EV_P_ W *events, int eventcnt, int type)
		472	{
		473	int i;
		474
		475	for (i = 0; i < eventcnt; ++i)
		476	ev_feed_event (EV_A_ events [i], type);
		477	}
		478
		479	/*****************************************************************************/
		480
		481	void inline_size
333	anfds_init (ANFD *base, int count)	482	anfds_init (ANFD *base, int count)
334	{	483	{
335	while (count--)	484	while (count--)
336	{	485	{
337	base->head = 0;	486	base->head = 0;
…		…
340		489
341	++base;	490	++base;
342	}	491	}
343	}	492	}
344		493
345	void	494	void inline_speed
346	ev_feed_event (EV_P_ void *w, int revents)
347	{
348	W w_ = (W)w;
349
350	if (w_->pending)
351	{
352	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
353	return;
354	}
355
356	w_->pending = ++pendingcnt [ABSPRI (w_)];
357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
360	}
361
362	static void
363	queue_events (EV_P_ W *events, int eventcnt, int type)
364	{
365	int i;
366
367	for (i = 0; i < eventcnt; ++i)
368	ev_feed_event (EV_A_ events [i], type);
369	}
370
371	inline void
372	fd_event (EV_P_ int fd, int revents)	495	fd_event (EV_P_ int fd, int revents)
373	{	496	{
374	ANFD *anfd = anfds + fd;	497	ANFD *anfd = anfds + fd;
375	struct ev_io *w;	498	ev_io *w;
376		499
377	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	500	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
378	{	501	{
379	int ev = w->events & revents;	502	int ev = w->events & revents;
380		503
381	if (ev)	504	if (ev)
382	ev_feed_event (EV_A_ (W)w, ev);	505	ev_feed_event (EV_A_ (W)w, ev);
…		…
384	}	507	}
385		508
386	void	509	void
387	ev_feed_fd_event (EV_P_ int fd, int revents)	510	ev_feed_fd_event (EV_P_ int fd, int revents)
388	{	511	{
		512	if (fd >= 0 && fd < anfdmax)
389	fd_event (EV_A_ fd, revents);	513	fd_event (EV_A_ fd, revents);
390	}	514	}
391		515
392	/*****************************************************************************/	516	void inline_size
393
394	static void
395	fd_reify (EV_P)	517	fd_reify (EV_P)
396	{	518	{
397	int i;	519	int i;
398		520
399	for (i = 0; i < fdchangecnt; ++i)	521	for (i = 0; i < fdchangecnt; ++i)
400	{	522	{
401	int fd = fdchanges [i];	523	int fd = fdchanges [i];
402	ANFD *anfd = anfds + fd;	524	ANFD *anfd = anfds + fd;
403	struct ev_io *w;	525	ev_io *w;
404		526
405	int events = 0;	527	int events = 0;
406		528
407	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	529	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
408	events |= w->events;	530	events |= w->events;
409		531
		532	#if EV_SELECT_IS_WINSOCKET
		533	if (events)
		534	{
		535	unsigned long argp;
		536	anfd->handle = _get_osfhandle (fd);
		537	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		538	}
		539	#endif
		540
410	anfd->reify = 0;	541	anfd->reify = 0;
411		542
412	method_modify (EV_A_ fd, anfd->events, events);	543	backend_modify (EV_A_ fd, anfd->events, events);
413	anfd->events = events;	544	anfd->events = events;
414	}	545	}
415		546
416	fdchangecnt = 0;	547	fdchangecnt = 0;
417	}	548	}
418		549
419	static void	550	void inline_size
420	fd_change (EV_P_ int fd)	551	fd_change (EV_P_ int fd)
421	{	552	{
422	if (anfds [fd].reify)	553	if (expect_false (anfds [fd].reify))
423	return;	554	return;
424		555
425	anfds [fd].reify = 1;	556	anfds [fd].reify = 1;
426		557
427	++fdchangecnt;	558	++fdchangecnt;
428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	559	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
429	fdchanges [fdchangecnt - 1] = fd;	560	fdchanges [fdchangecnt - 1] = fd;
430	}	561	}
431		562
432	static void	563	void inline_speed
433	fd_kill (EV_P_ int fd)	564	fd_kill (EV_P_ int fd)
434	{	565	{
435	struct ev_io *w;	566	ev_io *w;
436		567
437	while ((w = (struct ev_io *)anfds [fd].head))	568	while ((w = (ev_io *)anfds [fd].head))
438	{	569	{
439	ev_io_stop (EV_A_ w);	570	ev_io_stop (EV_A_ w);
440	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	571	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
441	}	572	}
442	}	573	}
443		574
444	static int	575	int inline_size
445	fd_valid (int fd)	576	fd_valid (int fd)
446	{	577	{
447	#ifdef WIN32	578	#ifdef _WIN32
448	return !!win32_get_osfhandle (fd);	579	return _get_osfhandle (fd) != -1;
449	#else	580	#else
450	return fcntl (fd, F_GETFD) != -1;	581	return fcntl (fd, F_GETFD) != -1;
451	#endif	582	#endif
452	}	583	}
453		584
454	/* called on EBADF to verify fds */	585	/* called on EBADF to verify fds */
455	static void	586	static void noinline
456	fd_ebadf (EV_P)	587	fd_ebadf (EV_P)
457	{	588	{
458	int fd;	589	int fd;
459		590
460	for (fd = 0; fd < anfdmax; ++fd)	591	for (fd = 0; fd < anfdmax; ++fd)
…		…
462	if (!fd_valid (fd) == -1 && errno == EBADF)	593	if (!fd_valid (fd) == -1 && errno == EBADF)
463	fd_kill (EV_A_ fd);	594	fd_kill (EV_A_ fd);
464	}	595	}
465		596
466	/* called on ENOMEM in select/poll to kill some fds and retry */	597	/* called on ENOMEM in select/poll to kill some fds and retry */
467	static void	598	static void noinline
468	fd_enomem (EV_P)	599	fd_enomem (EV_P)
469	{	600	{
470	int fd;	601	int fd;
471		602
472	for (fd = anfdmax; fd--; )	603	for (fd = anfdmax; fd--; )
…		…
475	fd_kill (EV_A_ fd);	606	fd_kill (EV_A_ fd);
476	return;	607	return;
477	}	608	}
478	}	609	}
479		610
480	/* usually called after fork if method needs to re-arm all fds from scratch */	611	/* usually called after fork if backend needs to re-arm all fds from scratch */
481	static void	612	static void noinline
482	fd_rearm_all (EV_P)	613	fd_rearm_all (EV_P)
483	{	614	{
484	int fd;	615	int fd;
485		616
486	/* this should be highly optimised to not do anything but set a flag */
487	for (fd = 0; fd < anfdmax; ++fd)	617	for (fd = 0; fd < anfdmax; ++fd)
488	if (anfds [fd].events)	618	if (anfds [fd].events)
489	{	619	{
490	anfds [fd].events = 0;	620	anfds [fd].events = 0;
491	fd_change (EV_A_ fd);	621	fd_change (EV_A_ fd);
492	}	622	}
493	}	623	}
494		624
495	/*****************************************************************************/	625	/*****************************************************************************/
496		626
497	static void	627	void inline_speed
498	upheap (WT *heap, int k)	628	upheap (WT *heap, int k)
499	{	629	{
500	WT w = heap [k];	630	WT w = heap [k];
501		631
502	while (k && heap [k >> 1]->at > w->at)	632	while (k && heap [k >> 1]->at > w->at)
…		…
509	heap [k] = w;	639	heap [k] = w;
510	((W)heap [k])->active = k + 1;	640	((W)heap [k])->active = k + 1;
511		641
512	}	642	}
513		643
514	static void	644	void inline_speed
515	downheap (WT *heap, int N, int k)	645	downheap (WT *heap, int N, int k)
516	{	646	{
517	WT w = heap [k];	647	WT w = heap [k];
518		648
519	while (k < (N >> 1))	649	while (k < (N >> 1))
…		…
533		663
534	heap [k] = w;	664	heap [k] = w;
535	((W)heap [k])->active = k + 1;	665	((W)heap [k])->active = k + 1;
536	}	666	}
537		667
538	inline void	668	void inline_size
539	adjustheap (WT *heap, int N, int k, ev_tstamp at)	669	adjustheap (WT *heap, int N, int k)
540	{	670	{
541	ev_tstamp old_at = heap [k]->at;	671	upheap (heap, k);
542	heap [k]->at = at;
543
544	if (old_at < at)
545	downheap (heap, N, k);	672	downheap (heap, N, k);
546	else
547	upheap (heap, k);
548	}	673	}
549		674
550	/*****************************************************************************/	675	/*****************************************************************************/
551		676
552	typedef struct	677	typedef struct
…		…
558	static ANSIG *signals;	683	static ANSIG *signals;
559	static int signalmax;	684	static int signalmax;
560		685
561	static int sigpipe [2];	686	static int sigpipe [2];
562	static sig_atomic_t volatile gotsig;	687	static sig_atomic_t volatile gotsig;
563	static struct ev_io sigev;	688	static ev_io sigev;
564		689
565	static void	690	void inline_size
566	signals_init (ANSIG *base, int count)	691	signals_init (ANSIG *base, int count)
567	{	692	{
568	while (count--)	693	while (count--)
569	{	694	{
570	base->head = 0;	695	base->head = 0;
…		…
575	}	700	}
576		701
577	static void	702	static void
578	sighandler (int signum)	703	sighandler (int signum)
579	{	704	{
580	#if WIN32	705	#if _WIN32
581	signal (signum, sighandler);	706	signal (signum, sighandler);
582	#endif	707	#endif
583		708
584	signals [signum - 1].gotsig = 1;	709	signals [signum - 1].gotsig = 1;
585		710
586	if (!gotsig)	711	if (!gotsig)
587	{	712	{
588	int old_errno = errno;	713	int old_errno = errno;
589	gotsig = 1;	714	gotsig = 1;
590	#ifdef WIN32
591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
592	#else
593	write (sigpipe [1], &signum, 1);	715	write (sigpipe [1], &signum, 1);
594	#endif
595	errno = old_errno;	716	errno = old_errno;
596	}	717	}
597	}	718	}
598		719
599	void	720	void noinline
600	ev_feed_signal_event (EV_P_ int signum)	721	ev_feed_signal_event (EV_P_ int signum)
601	{	722	{
602	WL w;	723	WL w;
603		724
604	#if EV_MULTIPLICITY	725	#if EV_MULTIPLICITY
605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	726	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
606	#endif	727	#endif
607		728
608	--signum;	729	--signum;
609		730
610	if (signum < 0 || signum >= signalmax)	731	if (signum < 0 || signum >= signalmax)
…		…
615	for (w = signals [signum].head; w; w = w->next)	736	for (w = signals [signum].head; w; w = w->next)
616	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
617	}	738	}
618		739
619	static void	740	static void
620	sigcb (EV_P_ struct ev_io *iow, int revents)	741	sigcb (EV_P_ ev_io *iow, int revents)
621	{	742	{
622	int signum;	743	int signum;
623		744
624	#ifdef WIN32
625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
626	#else
627	read (sigpipe [0], &revents, 1);	745	read (sigpipe [0], &revents, 1);
628	#endif
629	gotsig = 0;	746	gotsig = 0;
630		747
631	for (signum = signalmax; signum--; )	748	for (signum = signalmax; signum--; )
632	if (signals [signum].gotsig)	749	if (signals [signum].gotsig)
633	ev_feed_signal_event (EV_A_ signum + 1);	750	ev_feed_signal_event (EV_A_ signum + 1);
634	}	751	}
635		752
636	static void	753	void inline_size
		754	fd_intern (int fd)
		755	{
		756	#ifdef _WIN32
		757	int arg = 1;
		758	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		759	#else
		760	fcntl (fd, F_SETFD, FD_CLOEXEC);
		761	fcntl (fd, F_SETFL, O_NONBLOCK);
		762	#endif
		763	}
		764
		765	static void noinline
637	siginit (EV_P)	766	siginit (EV_P)
638	{	767	{
639	#ifndef WIN32	768	fd_intern (sigpipe [0]);
640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	769	fd_intern (sigpipe [1]);
641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
642
643	/* rather than sort out wether we really need nb, set it */
644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
646	#endif
647		770
648	ev_io_set (&sigev, sigpipe [0], EV_READ);	771	ev_io_set (&sigev, sigpipe [0], EV_READ);
649	ev_io_start (EV_A_ &sigev);	772	ev_io_start (EV_A_ &sigev);
650	ev_unref (EV_A); /* child watcher should not keep loop alive */	773	ev_unref (EV_A); /* child watcher should not keep loop alive */
651	}	774	}
652		775
653	/*****************************************************************************/	776	/*****************************************************************************/
654		777
655	static struct ev_child *childs [PID_HASHSIZE];	778	static ev_child *childs [EV_PID_HASHSIZE];
656		779
657	#ifndef WIN32	780	#ifndef _WIN32
658		781
659	static struct ev_signal childev;	782	static ev_signal childev;
		783
		784	void inline_speed
		785	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		786	{
		787	ev_child *w;
		788
		789	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		790	if (w->pid == pid || !w->pid)
		791	{
		792	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		793	w->rpid = pid;
		794	w->rstatus = status;
		795	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		796	}
		797	}
660		798
661	#ifndef WCONTINUED	799	#ifndef WCONTINUED
662	# define WCONTINUED 0	800	# define WCONTINUED 0
663	#endif	801	#endif
664		802
665	static void	803	static void
666	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
667	{
668	struct ev_child *w;
669
670	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
671	if (w->pid == pid || !w->pid)
672	{
673	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
674	w->rpid = pid;
675	w->rstatus = status;
676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
677	}
678	}
679
680	static void
681	childcb (EV_P_ struct ev_signal *sw, int revents)	804	childcb (EV_P_ ev_signal *sw, int revents)
682	{	805	{
683	int pid, status;	806	int pid, status;
684		807
		808	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
685	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	809	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
686	{	810	if (!WCONTINUED
		811	|| errno != EINVAL
		812	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		813	return;
		814
687	/* make sure we are called again until all childs have been reaped */	815	/* make sure we are called again until all childs have been reaped */
		816	/* we need to do it this way so that the callback gets called before we continue */
688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	817	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
689		818
690	child_reap (EV_A_ sw, pid, pid, status);	819	child_reap (EV_A_ sw, pid, pid, status);
		820	if (EV_PID_HASHSIZE > 1)
691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	821	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
692	}
693	}	822	}
694		823
695	#endif	824	#endif
696		825
697	/*****************************************************************************/	826	/*****************************************************************************/
698		827
		828	#if EV_USE_PORT
		829	# include "ev_port.c"
		830	#endif
699	#if EV_USE_KQUEUE	831	#if EV_USE_KQUEUE
700	# include "ev_kqueue.c"	832	# include "ev_kqueue.c"
701	#endif	833	#endif
702	#if EV_USE_EPOLL	834	#if EV_USE_EPOLL
703	# include "ev_epoll.c"	835	# include "ev_epoll.c"
…		…
720	{	852	{
721	return EV_VERSION_MINOR;	853	return EV_VERSION_MINOR;
722	}	854	}
723		855
724	/* return true if we are running with elevated privileges and should ignore env variables */	856	/* return true if we are running with elevated privileges and should ignore env variables */
725	static int	857	int inline_size
726	enable_secure (void)	858	enable_secure (void)
727	{	859	{
728	#ifdef WIN32	860	#ifdef _WIN32
729	return 0;	861	return 0;
730	#else	862	#else
731	return getuid () != geteuid ()	863	return getuid () != geteuid ()
732	|| getgid () != getegid ();	864	|| getgid () != getegid ();
733	#endif	865	#endif
734	}	866	}
735		867
736	int	868	unsigned int
737	ev_method (EV_P)	869	ev_supported_backends (void)
738	{	870	{
739	return method;	871	unsigned int flags = 0;
740	}
741		872
742	static void	873	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
743	loop_init (EV_P_ int methods)	874	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		875	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		876	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		877	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		878
		879	return flags;
		880	}
		881
		882	unsigned int
		883	ev_recommended_backends (void)
744	{	884	{
745	if (!method)	885	unsigned int flags = ev_supported_backends ();
		886
		887	#ifndef __NetBSD__
		888	/* kqueue is borked on everything but netbsd apparently */
		889	/* it usually doesn't work correctly on anything but sockets and pipes */
		890	flags &= ~EVBACKEND_KQUEUE;
		891	#endif
		892	#ifdef __APPLE__
		893	// flags &= ~EVBACKEND_KQUEUE; for documentation
		894	flags &= ~EVBACKEND_POLL;
		895	#endif
		896
		897	return flags;
		898	}
		899
		900	unsigned int
		901	ev_embeddable_backends (void)
		902	{
		903	return EVBACKEND_EPOLL
		904	| EVBACKEND_KQUEUE
		905	| EVBACKEND_PORT;
		906	}
		907
		908	unsigned int
		909	ev_backend (EV_P)
		910	{
		911	return backend;
		912	}
		913
		914	unsigned int
		915	ev_loop_count (EV_P)
		916	{
		917	return loop_count;
		918	}
		919
		920	static void noinline
		921	loop_init (EV_P_ unsigned int flags)
		922	{
		923	if (!backend)
746	{	924	{
747	#if EV_USE_MONOTONIC	925	#if EV_USE_MONOTONIC
748	{	926	{
749	struct timespec ts;	927	struct timespec ts;
750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	928	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
755	ev_rt_now = ev_time ();	933	ev_rt_now = ev_time ();
756	mn_now = get_clock ();	934	mn_now = get_clock ();
757	now_floor = mn_now;	935	now_floor = mn_now;
758	rtmn_diff = ev_rt_now - mn_now;	936	rtmn_diff = ev_rt_now - mn_now;
759		937
760	if (methods == EVMETHOD_AUTO)	938	/* pid check not overridable via env */
761	if (!enable_secure () && getenv ("LIBEV_METHODS"))	939	#ifndef _WIN32
		940	if (flags & EVFLAG_FORKCHECK)
		941	curpid = getpid ();
		942	#endif
		943
		944	if (!(flags & EVFLAG_NOENV)
		945	&& !enable_secure ()
		946	&& getenv ("LIBEV_FLAGS"))
762	methods = atoi (getenv ("LIBEV_METHODS"));	947	flags = atoi (getenv ("LIBEV_FLAGS"));
763	else
764	methods = EVMETHOD_ANY;
765		948
766	method = 0;	949	if (!(flags & 0x0000ffffUL))
		950	flags |= ev_recommended_backends ();
		951
		952	backend = 0;
		953	backend_fd = -1;
767	#if EV_USE_WIN32	954	#if EV_USE_INOTIFY
768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	955	fs_fd = -2;
		956	#endif
		957
		958	#if EV_USE_PORT
		959	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
769	#endif	960	#endif
770	#if EV_USE_KQUEUE	961	#if EV_USE_KQUEUE
771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	962	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
772	#endif	963	#endif
773	#if EV_USE_EPOLL	964	#if EV_USE_EPOLL
774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	965	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
775	#endif	966	#endif
776	#if EV_USE_POLL	967	#if EV_USE_POLL
777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	968	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
778	#endif	969	#endif
779	#if EV_USE_SELECT	970	#if EV_USE_SELECT
780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	971	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
781	#endif	972	#endif
782		973
783	ev_init (&sigev, sigcb);	974	ev_init (&sigev, sigcb);
784	ev_set_priority (&sigev, EV_MAXPRI);	975	ev_set_priority (&sigev, EV_MAXPRI);
785	}	976	}
786	}	977	}
787		978
788	void	979	static void noinline
789	loop_destroy (EV_P)	980	loop_destroy (EV_P)
790	{	981	{
791	int i;	982	int i;
792		983
793	#if EV_USE_WIN32	984	#if EV_USE_INOTIFY
794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	985	if (fs_fd >= 0)
		986	close (fs_fd);
		987	#endif
		988
		989	if (backend_fd >= 0)
		990	close (backend_fd);
		991
		992	#if EV_USE_PORT
		993	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
795	#endif	994	#endif
796	#if EV_USE_KQUEUE	995	#if EV_USE_KQUEUE
797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	996	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
798	#endif	997	#endif
799	#if EV_USE_EPOLL	998	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	999	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
801	#endif	1000	#endif
802	#if EV_USE_POLL	1001	#if EV_USE_POLL
803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	1002	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
804	#endif	1003	#endif
805	#if EV_USE_SELECT	1004	#if EV_USE_SELECT
806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	1005	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
807	#endif	1006	#endif
808		1007
809	for (i = NUMPRI; i--; )	1008	for (i = NUMPRI; i--; )
		1009	{
810	array_free (pending, [i]);	1010	array_free (pending, [i]);
		1011	#if EV_IDLE_ENABLE
		1012	array_free (idle, [i]);
		1013	#endif
		1014	}
811		1015
812	/* have to use the microsoft-never-gets-it-right macro */	1016	/* have to use the microsoft-never-gets-it-right macro */
813	array_free_microshit (fdchange);	1017	array_free (fdchange, EMPTY);
814	array_free_microshit (timer);	1018	array_free (timer, EMPTY);
815	#if EV_PERIODICS	1019	#if EV_PERIODIC_ENABLE
816	array_free_microshit (periodic);	1020	array_free (periodic, EMPTY);
817	#endif	1021	#endif
818	array_free_microshit (idle);	1022	array_free (prepare, EMPTY);
819	array_free_microshit (prepare);	1023	array_free (check, EMPTY);
820	array_free_microshit (check);
821		1024
822	method = 0;	1025	backend = 0;
823	}	1026	}
824		1027
825	static void	1028	void inline_size infy_fork (EV_P);
		1029
		1030	void inline_size
826	loop_fork (EV_P)	1031	loop_fork (EV_P)
827	{	1032	{
		1033	#if EV_USE_PORT
		1034	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		1035	#endif
		1036	#if EV_USE_KQUEUE
		1037	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		1038	#endif
828	#if EV_USE_EPOLL	1039	#if EV_USE_EPOLL
829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1040	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
830	#endif	1041	#endif
831	#if EV_USE_KQUEUE	1042	#if EV_USE_INOTIFY
832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1043	infy_fork (EV_A);
833	#endif	1044	#endif
834		1045
835	if (ev_is_active (&sigev))	1046	if (ev_is_active (&sigev))
836	{	1047	{
837	/* default loop */	1048	/* default loop */
…		…
850	postfork = 0;	1061	postfork = 0;
851	}	1062	}
852		1063
853	#if EV_MULTIPLICITY	1064	#if EV_MULTIPLICITY
854	struct ev_loop *	1065	struct ev_loop *
855	ev_loop_new (int methods)	1066	ev_loop_new (unsigned int flags)
856	{	1067	{
857	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1068	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
858		1069
859	memset (loop, 0, sizeof (struct ev_loop));	1070	memset (loop, 0, sizeof (struct ev_loop));
860		1071
861	loop_init (EV_A_ methods);	1072	loop_init (EV_A_ flags);
862		1073
863	if (ev_method (EV_A))	1074	if (ev_backend (EV_A))
864	return loop;	1075	return loop;
865		1076
866	return 0;	1077	return 0;
867	}	1078	}
868		1079
…		…
881		1092
882	#endif	1093	#endif
883		1094
884	#if EV_MULTIPLICITY	1095	#if EV_MULTIPLICITY
885	struct ev_loop *	1096	struct ev_loop *
		1097	ev_default_loop_init (unsigned int flags)
886	#else	1098	#else
887	int	1099	int
		1100	ev_default_loop (unsigned int flags)
888	#endif	1101	#endif
889	ev_default_loop (int methods)
890	{	1102	{
891	if (sigpipe [0] == sigpipe [1])	1103	if (sigpipe [0] == sigpipe [1])
892	if (pipe (sigpipe))	1104	if (pipe (sigpipe))
893	return 0;	1105	return 0;
894		1106
895	if (!default_loop)	1107	if (!ev_default_loop_ptr)
896	{	1108	{
897	#if EV_MULTIPLICITY	1109	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop = &default_loop_struct;	1110	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
899	#else	1111	#else
900	default_loop = 1;	1112	ev_default_loop_ptr = 1;
901	#endif	1113	#endif
902		1114
903	loop_init (EV_A_ methods);	1115	loop_init (EV_A_ flags);
904		1116
905	if (ev_method (EV_A))	1117	if (ev_backend (EV_A))
906	{	1118	{
907	siginit (EV_A);	1119	siginit (EV_A);
908		1120
909	#ifndef WIN32	1121	#ifndef _WIN32
910	ev_signal_init (&childev, childcb, SIGCHLD);	1122	ev_signal_init (&childev, childcb, SIGCHLD);
911	ev_set_priority (&childev, EV_MAXPRI);	1123	ev_set_priority (&childev, EV_MAXPRI);
912	ev_signal_start (EV_A_ &childev);	1124	ev_signal_start (EV_A_ &childev);
913	ev_unref (EV_A); /* child watcher should not keep loop alive */	1125	ev_unref (EV_A); /* child watcher should not keep loop alive */
914	#endif	1126	#endif
915	}	1127	}
916	else	1128	else
917	default_loop = 0;	1129	ev_default_loop_ptr = 0;
918	}	1130	}
919		1131
920	return default_loop;	1132	return ev_default_loop_ptr;
921	}	1133	}
922		1134
923	void	1135	void
924	ev_default_destroy (void)	1136	ev_default_destroy (void)
925	{	1137	{
926	#if EV_MULTIPLICITY	1138	#if EV_MULTIPLICITY
927	struct ev_loop *loop = default_loop;	1139	struct ev_loop *loop = ev_default_loop_ptr;
928	#endif	1140	#endif
929		1141
930	#ifndef WIN32	1142	#ifndef _WIN32
931	ev_ref (EV_A); /* child watcher */	1143	ev_ref (EV_A); /* child watcher */
932	ev_signal_stop (EV_A_ &childev);	1144	ev_signal_stop (EV_A_ &childev);
933	#endif	1145	#endif
934		1146
935	ev_ref (EV_A); /* signal watcher */	1147	ev_ref (EV_A); /* signal watcher */
…		…
943		1155
944	void	1156	void
945	ev_default_fork (void)	1157	ev_default_fork (void)
946	{	1158	{
947	#if EV_MULTIPLICITY	1159	#if EV_MULTIPLICITY
948	struct ev_loop *loop = default_loop;	1160	struct ev_loop *loop = ev_default_loop_ptr;
949	#endif	1161	#endif
950		1162
951	if (method)	1163	if (backend)
952	postfork = 1;	1164	postfork = 1;
953	}	1165	}
954		1166
955	/*****************************************************************************/	1167	/*****************************************************************************/
956		1168
957	static int	1169	void
958	any_pending (EV_P)	1170	ev_invoke (EV_P_ void *w, int revents)
959	{	1171	{
960	int pri;	1172	EV_CB_INVOKE ((W)w, revents);
961
962	for (pri = NUMPRI; pri--; )
963	if (pendingcnt [pri])
964	return 1;
965
966	return 0;
967	}	1173	}
968		1174
969	static void	1175	void inline_speed
970	call_pending (EV_P)	1176	call_pending (EV_P)
971	{	1177	{
972	int pri;	1178	int pri;
973		1179
974	for (pri = NUMPRI; pri--; )	1180	for (pri = NUMPRI; pri--; )
975	while (pendingcnt [pri])	1181	while (pendingcnt [pri])
976	{	1182	{
977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1183	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
978		1184
979	if (p->w)	1185	if (expect_true (p->w))
980	{	1186	{
		1187	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1188
981	p->w->pending = 0;	1189	p->w->pending = 0;
982	EV_CB_INVOKE (p->w, p->events);	1190	EV_CB_INVOKE (p->w, p->events);
983	}	1191	}
984	}	1192	}
985	}	1193	}
986		1194
987	static void	1195	void inline_size
988	timers_reify (EV_P)	1196	timers_reify (EV_P)
989	{	1197	{
990	while (timercnt && ((WT)timers [0])->at <= mn_now)	1198	while (timercnt && ((WT)timers [0])->at <= mn_now)
991	{	1199	{
992	struct ev_timer *w = timers [0];	1200	ev_timer *w = timers [0];
993		1201
994	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1202	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
995		1203
996	/* first reschedule or stop timer */	1204	/* first reschedule or stop timer */
997	if (w->repeat)	1205	if (w->repeat)
998	{	1206	{
999	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1207	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
…		…
1009		1217
1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1218	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1011	}	1219	}
1012	}	1220	}
1013		1221
1014	#if EV_PERIODICS	1222	#if EV_PERIODIC_ENABLE
1015	static void	1223	void inline_size
1016	periodics_reify (EV_P)	1224	periodics_reify (EV_P)
1017	{	1225	{
1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1226	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1019	{	1227	{
1020	struct ev_periodic *w = periodics [0];	1228	ev_periodic *w = periodics [0];
1021		1229
1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1230	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1023		1231
1024	/* first reschedule or stop timer */	1232	/* first reschedule or stop timer */
1025	if (w->reschedule_cb)	1233	if (w->reschedule_cb)
1026	{	1234	{
1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1235	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1028
1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1236	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1030	downheap ((WT *)periodics, periodiccnt, 0);	1237	downheap ((WT *)periodics, periodiccnt, 0);
1031	}	1238	}
1032	else if (w->interval)	1239	else if (w->interval)
1033	{	1240	{
…		…
1040		1247
1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1248	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1042	}	1249	}
1043	}	1250	}
1044		1251
1045	static void	1252	static void noinline
1046	periodics_reschedule (EV_P)	1253	periodics_reschedule (EV_P)
1047	{	1254	{
1048	int i;	1255	int i;
1049		1256
1050	/* adjust periodics after time jump */	1257	/* adjust periodics after time jump */
1051	for (i = 0; i < periodiccnt; ++i)	1258	for (i = 0; i < periodiccnt; ++i)
1052	{	1259	{
1053	struct ev_periodic *w = periodics [i];	1260	ev_periodic *w = periodics [i];
1054		1261
1055	if (w->reschedule_cb)	1262	if (w->reschedule_cb)
1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1263	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1057	else if (w->interval)	1264	else if (w->interval)
1058	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1265	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1062	for (i = periodiccnt >> 1; i--; )	1269	for (i = periodiccnt >> 1; i--; )
1063	downheap ((WT *)periodics, periodiccnt, i);	1270	downheap ((WT *)periodics, periodiccnt, i);
1064	}	1271	}
1065	#endif	1272	#endif
1066		1273
1067	inline int	1274	#if EV_IDLE_ENABLE
		1275	void inline_size
		1276	idle_reify (EV_P)
		1277	{
		1278	if (expect_false (idleall))
		1279	{
		1280	int pri;
		1281
		1282	for (pri = NUMPRI; pri--; )
		1283	{
		1284	if (pendingcnt [pri])
		1285	break;
		1286
		1287	if (idlecnt [pri])
		1288	{
		1289	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1290	break;
		1291	}
		1292	}
		1293	}
		1294	}
		1295	#endif
		1296
		1297	int inline_size
1068	time_update_monotonic (EV_P)	1298	time_update_monotonic (EV_P)
1069	{	1299	{
1070	mn_now = get_clock ();	1300	mn_now = get_clock ();
1071		1301
1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1302	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
…		…
1080	ev_rt_now = ev_time ();	1310	ev_rt_now = ev_time ();
1081	return 1;	1311	return 1;
1082	}	1312	}
1083	}	1313	}
1084		1314
1085	static void	1315	void inline_size
1086	time_update (EV_P)	1316	time_update (EV_P)
1087	{	1317	{
1088	int i;	1318	int i;
1089		1319
1090	#if EV_USE_MONOTONIC	1320	#if EV_USE_MONOTONIC
…		…
1092	{	1322	{
1093	if (time_update_monotonic (EV_A))	1323	if (time_update_monotonic (EV_A))
1094	{	1324	{
1095	ev_tstamp odiff = rtmn_diff;	1325	ev_tstamp odiff = rtmn_diff;
1096		1326
1097	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1327	/* loop a few times, before making important decisions.
		1328	* on the choice of "4": one iteration isn't enough,
		1329	* in case we get preempted during the calls to
		1330	* ev_time and get_clock. a second call is almost guaranteed
		1331	* to succeed in that case, though. and looping a few more times
		1332	* doesn't hurt either as we only do this on time-jumps or
		1333	* in the unlikely event of having been preempted here.
		1334	*/
		1335	for (i = 4; --i; )
1098	{	1336	{
1099	rtmn_diff = ev_rt_now - mn_now;	1337	rtmn_diff = ev_rt_now - mn_now;
1100		1338
1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1339	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1102	return; /* all is well */	1340	return; /* all is well */
…		…
1104	ev_rt_now = ev_time ();	1342	ev_rt_now = ev_time ();
1105	mn_now = get_clock ();	1343	mn_now = get_clock ();
1106	now_floor = mn_now;	1344	now_floor = mn_now;
1107	}	1345	}
1108		1346
1109	# if EV_PERIODICS	1347	# if EV_PERIODIC_ENABLE
1110	periodics_reschedule (EV_A);	1348	periodics_reschedule (EV_A);
1111	# endif	1349	# endif
1112	/* no timer adjustment, as the monotonic clock doesn't jump */	1350	/* no timer adjustment, as the monotonic clock doesn't jump */
1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1351	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1114	}	1352	}
…		…
1118	{	1356	{
1119	ev_rt_now = ev_time ();	1357	ev_rt_now = ev_time ();
1120		1358
1121	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1359	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1122	{	1360	{
1123	#if EV_PERIODICS	1361	#if EV_PERIODIC_ENABLE
1124	periodics_reschedule (EV_A);	1362	periodics_reschedule (EV_A);
1125	#endif	1363	#endif
1126		1364
1127	/* adjust timers. this is easy, as the offset is the same for all */	1365	/* adjust timers. this is easy, as the offset is the same for all of them */
1128	for (i = 0; i < timercnt; ++i)	1366	for (i = 0; i < timercnt; ++i)
1129	((WT)timers [i])->at += ev_rt_now - mn_now;	1367	((WT)timers [i])->at += ev_rt_now - mn_now;
1130	}	1368	}
1131		1369
1132	mn_now = ev_rt_now;	1370	mn_now = ev_rt_now;
…		…
1148	static int loop_done;	1386	static int loop_done;
1149		1387
1150	void	1388	void
1151	ev_loop (EV_P_ int flags)	1389	ev_loop (EV_P_ int flags)
1152	{	1390	{
1153	double block;
1154	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1391	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1392	? EVUNLOOP_ONE
		1393	: EVUNLOOP_CANCEL;
		1394
		1395	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1155		1396
1156	do	1397	do
1157	{	1398	{
		1399	#ifndef _WIN32
		1400	if (expect_false (curpid)) /* penalise the forking check even more */
		1401	if (expect_false (getpid () != curpid))
		1402	{
		1403	curpid = getpid ();
		1404	postfork = 1;
		1405	}
		1406	#endif
		1407
		1408	#if EV_FORK_ENABLE
		1409	/* we might have forked, so queue fork handlers */
		1410	if (expect_false (postfork))
		1411	if (forkcnt)
		1412	{
		1413	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1414	call_pending (EV_A);
		1415	}
		1416	#endif
		1417
1158	/* queue check watchers (and execute them) */	1418	/* queue check watchers (and execute them) */
1159	if (expect_false (preparecnt))	1419	if (expect_false (preparecnt))
1160	{	1420	{
1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1421	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1162	call_pending (EV_A);	1422	call_pending (EV_A);
1163	}	1423	}
1164		1424
		1425	if (expect_false (!activecnt))
		1426	break;
		1427
1165	/* we might have forked, so reify kernel state if necessary */	1428	/* we might have forked, so reify kernel state if necessary */
1166	if (expect_false (postfork))	1429	if (expect_false (postfork))
1167	loop_fork (EV_A);	1430	loop_fork (EV_A);
1168		1431
1169	/* update fd-related kernel structures */	1432	/* update fd-related kernel structures */
1170	fd_reify (EV_A);	1433	fd_reify (EV_A);
1171		1434
1172	/* calculate blocking time */	1435	/* calculate blocking time */
		1436	{
		1437	ev_tstamp block;
1173		1438
1174	/* we only need this for !monotonic clock or timers, but as we basically	1439	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1175	always have timers, we just calculate it always */	1440	block = 0.; /* do not block at all */
		1441	else
		1442	{
		1443	/* update time to cancel out callback processing overhead */
1176	#if EV_USE_MONOTONIC	1444	#if EV_USE_MONOTONIC
1177	if (expect_true (have_monotonic))	1445	if (expect_true (have_monotonic))
1178	time_update_monotonic (EV_A);	1446	time_update_monotonic (EV_A);
1179	else	1447	else
1180	#endif	1448	#endif
1181	{	1449	{
1182	ev_rt_now = ev_time ();	1450	ev_rt_now = ev_time ();
1183	mn_now = ev_rt_now;	1451	mn_now = ev_rt_now;
1184	}	1452	}
1185		1453
1186	if (flags & EVLOOP_NONBLOCK || idlecnt)
1187	block = 0.;
1188	else
1189	{
1190	block = MAX_BLOCKTIME;	1454	block = MAX_BLOCKTIME;
1191		1455
1192	if (timercnt)	1456	if (timercnt)
1193	{	1457	{
1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1458	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1195	if (block > to) block = to;	1459	if (block > to) block = to;
1196	}	1460	}
1197		1461
1198	#if EV_PERIODICS	1462	#if EV_PERIODIC_ENABLE
1199	if (periodiccnt)	1463	if (periodiccnt)
1200	{	1464	{
1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1465	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1202	if (block > to) block = to;	1466	if (block > to) block = to;
1203	}	1467	}
1204	#endif	1468	#endif
1205		1469
1206	if (block < 0.) block = 0.;	1470	if (expect_false (block < 0.)) block = 0.;
1207	}	1471	}
1208		1472
		1473	++loop_count;
1209	method_poll (EV_A_ block);	1474	backend_poll (EV_A_ block);
		1475	}
1210		1476
1211	/* update ev_rt_now, do magic */	1477	/* update ev_rt_now, do magic */
1212	time_update (EV_A);	1478	time_update (EV_A);
1213		1479
1214	/* queue pending timers and reschedule them */	1480	/* queue pending timers and reschedule them */
1215	timers_reify (EV_A); /* relative timers called last */	1481	timers_reify (EV_A); /* relative timers called last */
1216	#if EV_PERIODICS	1482	#if EV_PERIODIC_ENABLE
1217	periodics_reify (EV_A); /* absolute timers called first */	1483	periodics_reify (EV_A); /* absolute timers called first */
1218	#endif	1484	#endif
1219		1485
		1486	#if EV_IDLE_ENABLE
1220	/* queue idle watchers unless io or timers are pending */	1487	/* queue idle watchers unless other events are pending */
1221	if (idlecnt && !any_pending (EV_A))	1488	idle_reify (EV_A);
1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1489	#endif
1223		1490
1224	/* queue check watchers, to be executed first */	1491	/* queue check watchers, to be executed first */
1225	if (checkcnt)	1492	if (expect_false (checkcnt))
1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1493	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1227		1494
1228	call_pending (EV_A);	1495	call_pending (EV_A);
		1496
1229	}	1497	}
1230	while (activecnt && !loop_done);	1498	while (expect_true (activecnt && !loop_done));
1231		1499
1232	if (loop_done != 2)	1500	if (loop_done == EVUNLOOP_ONE)
1233	loop_done = 0;	1501	loop_done = EVUNLOOP_CANCEL;
1234	}	1502	}
1235		1503
1236	void	1504	void
1237	ev_unloop (EV_P_ int how)	1505	ev_unloop (EV_P_ int how)
1238	{	1506	{
1239	loop_done = how;	1507	loop_done = how;
1240	}	1508	}
1241		1509
1242	/*****************************************************************************/	1510	/*****************************************************************************/
1243		1511
1244	inline void	1512	void inline_size
1245	wlist_add (WL *head, WL elem)	1513	wlist_add (WL *head, WL elem)
1246	{	1514	{
1247	elem->next = *head;	1515	elem->next = *head;
1248	*head = elem;	1516	*head = elem;
1249	}	1517	}
1250		1518
1251	inline void	1519	void inline_size
1252	wlist_del (WL *head, WL elem)	1520	wlist_del (WL *head, WL elem)
1253	{	1521	{
1254	while (*head)	1522	while (*head)
1255	{	1523	{
1256	if (*head == elem)	1524	if (*head == elem)
…		…
1261		1529
1262	head = &(*head)->next;	1530	head = &(*head)->next;
1263	}	1531	}
1264	}	1532	}
1265		1533
1266	inline void	1534	void inline_speed
1267	ev_clear_pending (EV_P_ W w)	1535	clear_pending (EV_P_ W w)
1268	{	1536	{
1269	if (w->pending)	1537	if (w->pending)
1270	{	1538	{
1271	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1539	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1272	w->pending = 0;	1540	w->pending = 0;
1273	}	1541	}
1274	}	1542	}
1275		1543
1276	inline void	1544	int
		1545	ev_clear_pending (EV_P_ void *w)
		1546	{
		1547	W w_ = (W)w;
		1548	int pending = w_->pending;
		1549
		1550	if (!pending)
		1551	return 0;
		1552
		1553	w_->pending = 0;
		1554	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1555	p->w = 0;
		1556
		1557	return p->events;
		1558	}
		1559
		1560	void inline_size
		1561	pri_adjust (EV_P_ W w)
		1562	{
		1563	int pri = w->priority;
		1564	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1565	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1566	w->priority = pri;
		1567	}
		1568
		1569	void inline_speed
1277	ev_start (EV_P_ W w, int active)	1570	ev_start (EV_P_ W w, int active)
1278	{	1571	{
1279	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1572	pri_adjust (EV_A_ w);
1280	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1281
1282	w->active = active;	1573	w->active = active;
1283	ev_ref (EV_A);	1574	ev_ref (EV_A);
1284	}	1575	}
1285		1576
1286	inline void	1577	void inline_size
1287	ev_stop (EV_P_ W w)	1578	ev_stop (EV_P_ W w)
1288	{	1579	{
1289	ev_unref (EV_A);	1580	ev_unref (EV_A);
1290	w->active = 0;	1581	w->active = 0;
1291	}	1582	}
1292		1583
1293	/*****************************************************************************/	1584	/*****************************************************************************/
1294		1585
1295	void	1586	void
1296	ev_io_start (EV_P_ struct ev_io *w)	1587	ev_io_start (EV_P_ ev_io *w)
1297	{	1588	{
1298	int fd = w->fd;	1589	int fd = w->fd;
1299		1590
1300	if (ev_is_active (w))	1591	if (expect_false (ev_is_active (w)))
1301	return;	1592	return;
1302		1593
1303	assert (("ev_io_start called with negative fd", fd >= 0));	1594	assert (("ev_io_start called with negative fd", fd >= 0));
1304		1595
1305	ev_start (EV_A_ (W)w, 1);	1596	ev_start (EV_A_ (W)w, 1);
…		…
1308		1599
1309	fd_change (EV_A_ fd);	1600	fd_change (EV_A_ fd);
1310	}	1601	}
1311		1602
1312	void	1603	void
1313	ev_io_stop (EV_P_ struct ev_io *w)	1604	ev_io_stop (EV_P_ ev_io *w)
1314	{	1605	{
1315	ev_clear_pending (EV_A_ (W)w);	1606	clear_pending (EV_A_ (W)w);
1316	if (!ev_is_active (w))	1607	if (expect_false (!ev_is_active (w)))
1317	return;	1608	return;
1318		1609
1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1610	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1320		1611
1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1612	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1323		1614
1324	fd_change (EV_A_ w->fd);	1615	fd_change (EV_A_ w->fd);
1325	}	1616	}
1326		1617
1327	void	1618	void
1328	ev_timer_start (EV_P_ struct ev_timer *w)	1619	ev_timer_start (EV_P_ ev_timer *w)
1329	{	1620	{
1330	if (ev_is_active (w))	1621	if (expect_false (ev_is_active (w)))
1331	return;	1622	return;
1332		1623
1333	((WT)w)->at += mn_now;	1624	((WT)w)->at += mn_now;
1334		1625
1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1626	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1336		1627
1337	ev_start (EV_A_ (W)w, ++timercnt);	1628	ev_start (EV_A_ (W)w, ++timercnt);
1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1629	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1339	timers [timercnt - 1] = w;	1630	timers [timercnt - 1] = w;
1340	upheap ((WT *)timers, timercnt - 1);	1631	upheap ((WT *)timers, timercnt - 1);
1341		1632
		1633	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
		1634	}
		1635
		1636	void
		1637	ev_timer_stop (EV_P_ ev_timer *w)
		1638	{
		1639	clear_pending (EV_A_ (W)w);
		1640	if (expect_false (!ev_is_active (w)))
		1641	return;
		1642
1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1643	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1343	}
1344		1644
1345	void	1645	{
1346	ev_timer_stop (EV_P_ struct ev_timer *w)	1646	int active = ((W)w)->active;
1347	{
1348	ev_clear_pending (EV_A_ (W)w);
1349	if (!ev_is_active (w))
1350	return;
1351		1647
1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1648	if (expect_true (--active < --timercnt))
1353
1354	if (((W)w)->active < timercnt--)
1355	{	1649	{
1356	timers [((W)w)->active - 1] = timers [timercnt];	1650	timers [active] = timers [timercnt];
1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1651	adjustheap ((WT *)timers, timercnt, active);
1358	}	1652	}
		1653	}
1359		1654
1360	((WT)w)->at -= mn_now;	1655	((WT)w)->at -= mn_now;
1361		1656
1362	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1363	}	1658	}
1364		1659
1365	void	1660	void
1366	ev_timer_again (EV_P_ struct ev_timer *w)	1661	ev_timer_again (EV_P_ ev_timer *w)
1367	{	1662	{
1368	if (ev_is_active (w))	1663	if (ev_is_active (w))
1369	{	1664	{
1370	if (w->repeat)	1665	if (w->repeat)
		1666	{
		1667	((WT)w)->at = mn_now + w->repeat;
1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1668	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1669	}
1372	else	1670	else
1373	ev_timer_stop (EV_A_ w);	1671	ev_timer_stop (EV_A_ w);
1374	}	1672	}
1375	else if (w->repeat)	1673	else if (w->repeat)
		1674	{
		1675	w->at = w->repeat;
1376	ev_timer_start (EV_A_ w);	1676	ev_timer_start (EV_A_ w);
		1677	}
1377	}	1678	}
1378		1679
1379	#if EV_PERIODICS	1680	#if EV_PERIODIC_ENABLE
1380	void	1681	void
1381	ev_periodic_start (EV_P_ struct ev_periodic *w)	1682	ev_periodic_start (EV_P_ ev_periodic *w)
1382	{	1683	{
1383	if (ev_is_active (w))	1684	if (expect_false (ev_is_active (w)))
1384	return;	1685	return;
1385		1686
1386	if (w->reschedule_cb)	1687	if (w->reschedule_cb)
1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1688	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1388	else if (w->interval)	1689	else if (w->interval)
…		…
1391	/* this formula differs from the one in periodic_reify because we do not always round up */	1692	/* this formula differs from the one in periodic_reify because we do not always round up */
1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1693	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1393	}	1694	}
1394		1695
1395	ev_start (EV_A_ (W)w, ++periodiccnt);	1696	ev_start (EV_A_ (W)w, ++periodiccnt);
1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1697	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1397	periodics [periodiccnt - 1] = w;	1698	periodics [periodiccnt - 1] = w;
1398	upheap ((WT *)periodics, periodiccnt - 1);	1699	upheap ((WT *)periodics, periodiccnt - 1);
1399		1700
		1701	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
		1702	}
		1703
		1704	void
		1705	ev_periodic_stop (EV_P_ ev_periodic *w)
		1706	{
		1707	clear_pending (EV_A_ (W)w);
		1708	if (expect_false (!ev_is_active (w)))
		1709	return;
		1710
1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1711	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1401	}
1402		1712
1403	void	1713	{
1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1714	int active = ((W)w)->active;
1405	{
1406	ev_clear_pending (EV_A_ (W)w);
1407	if (!ev_is_active (w))
1408	return;
1409		1715
1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1716	if (expect_true (--active < --periodiccnt))
1411
1412	if (((W)w)->active < periodiccnt--)
1413	{	1717	{
1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1718	periodics [active] = periodics [periodiccnt];
1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1719	adjustheap ((WT *)periodics, periodiccnt, active);
1416	}	1720	}
		1721	}
1417		1722
1418	ev_stop (EV_A_ (W)w);	1723	ev_stop (EV_A_ (W)w);
1419	}	1724	}
1420		1725
1421	void	1726	void
1422	ev_periodic_again (EV_P_ struct ev_periodic *w)	1727	ev_periodic_again (EV_P_ ev_periodic *w)
1423	{	1728	{
1424	/* TODO: use adjustheap and recalculation */	1729	/* TODO: use adjustheap and recalculation */
1425	ev_periodic_stop (EV_A_ w);	1730	ev_periodic_stop (EV_A_ w);
1426	ev_periodic_start (EV_A_ w);	1731	ev_periodic_start (EV_A_ w);
1427	}	1732	}
1428	#endif	1733	#endif
1429		1734
1430	void
1431	ev_idle_start (EV_P_ struct ev_idle *w)
1432	{
1433	if (ev_is_active (w))
1434	return;
1435
1436	ev_start (EV_A_ (W)w, ++idlecnt);
1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1438	idles [idlecnt - 1] = w;
1439	}
1440
1441	void
1442	ev_idle_stop (EV_P_ struct ev_idle *w)
1443	{
1444	ev_clear_pending (EV_A_ (W)w);
1445	if (ev_is_active (w))
1446	return;
1447
1448	idles [((W)w)->active - 1] = idles [--idlecnt];
1449	ev_stop (EV_A_ (W)w);
1450	}
1451
1452	void
1453	ev_prepare_start (EV_P_ struct ev_prepare *w)
1454	{
1455	if (ev_is_active (w))
1456	return;
1457
1458	ev_start (EV_A_ (W)w, ++preparecnt);
1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1460	prepares [preparecnt - 1] = w;
1461	}
1462
1463	void
1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1465	{
1466	ev_clear_pending (EV_A_ (W)w);
1467	if (ev_is_active (w))
1468	return;
1469
1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1471	ev_stop (EV_A_ (W)w);
1472	}
1473
1474	void
1475	ev_check_start (EV_P_ struct ev_check *w)
1476	{
1477	if (ev_is_active (w))
1478	return;
1479
1480	ev_start (EV_A_ (W)w, ++checkcnt);
1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1482	checks [checkcnt - 1] = w;
1483	}
1484
1485	void
1486	ev_check_stop (EV_P_ struct ev_check *w)
1487	{
1488	ev_clear_pending (EV_A_ (W)w);
1489	if (!ev_is_active (w))
1490	return;
1491
1492	checks [((W)w)->active - 1] = checks [--checkcnt];
1493	ev_stop (EV_A_ (W)w);
1494	}
1495
1496	#ifndef SA_RESTART	1735	#ifndef SA_RESTART
1497	# define SA_RESTART 0	1736	# define SA_RESTART 0
1498	#endif	1737	#endif
1499		1738
1500	void	1739	void
1501	ev_signal_start (EV_P_ struct ev_signal *w)	1740	ev_signal_start (EV_P_ ev_signal *w)
1502	{	1741	{
1503	#if EV_MULTIPLICITY	1742	#if EV_MULTIPLICITY
1504	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1743	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1505	#endif	1744	#endif
1506	if (ev_is_active (w))	1745	if (expect_false (ev_is_active (w)))
1507	return;	1746	return;
1508		1747
1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1748	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1510		1749
1511	ev_start (EV_A_ (W)w, 1);	1750	ev_start (EV_A_ (W)w, 1);
1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1751	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1752	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1514		1753
1515	if (!((WL)w)->next)	1754	if (!((WL)w)->next)
1516	{	1755	{
1517	#if WIN32	1756	#if _WIN32
1518	signal (w->signum, sighandler);	1757	signal (w->signum, sighandler);
1519	#else	1758	#else
1520	struct sigaction sa;	1759	struct sigaction sa;
1521	sa.sa_handler = sighandler;	1760	sa.sa_handler = sighandler;
1522	sigfillset (&sa.sa_mask);	1761	sigfillset (&sa.sa_mask);
…		…
1525	#endif	1764	#endif
1526	}	1765	}
1527	}	1766	}
1528		1767
1529	void	1768	void
1530	ev_signal_stop (EV_P_ struct ev_signal *w)	1769	ev_signal_stop (EV_P_ ev_signal *w)
1531	{	1770	{
1532	ev_clear_pending (EV_A_ (W)w);	1771	clear_pending (EV_A_ (W)w);
1533	if (!ev_is_active (w))	1772	if (expect_false (!ev_is_active (w)))
1534	return;	1773	return;
1535		1774
1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1775	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1537	ev_stop (EV_A_ (W)w);	1776	ev_stop (EV_A_ (W)w);
1538		1777
1539	if (!signals [w->signum - 1].head)	1778	if (!signals [w->signum - 1].head)
1540	signal (w->signum, SIG_DFL);	1779	signal (w->signum, SIG_DFL);
1541	}	1780	}
1542		1781
1543	void	1782	void
1544	ev_child_start (EV_P_ struct ev_child *w)	1783	ev_child_start (EV_P_ ev_child *w)
1545	{	1784	{
1546	#if EV_MULTIPLICITY	1785	#if EV_MULTIPLICITY
1547	assert (("child watchers are only supported in the default loop", loop == default_loop));	1786	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1548	#endif	1787	#endif
1549	if (ev_is_active (w))	1788	if (expect_false (ev_is_active (w)))
1550	return;	1789	return;
1551		1790
1552	ev_start (EV_A_ (W)w, 1);	1791	ev_start (EV_A_ (W)w, 1);
1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1792	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1554	}	1793	}
1555		1794
1556	void	1795	void
1557	ev_child_stop (EV_P_ struct ev_child *w)	1796	ev_child_stop (EV_P_ ev_child *w)
1558	{	1797	{
1559	ev_clear_pending (EV_A_ (W)w);	1798	clear_pending (EV_A_ (W)w);
1560	if (!ev_is_active (w))	1799	if (expect_false (!ev_is_active (w)))
1561	return;	1800	return;
1562		1801
1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1802	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1564	ev_stop (EV_A_ (W)w);	1803	ev_stop (EV_A_ (W)w);
1565	}	1804	}
1566		1805
		1806	#if EV_STAT_ENABLE
		1807
		1808	# ifdef _WIN32
		1809	# undef lstat
		1810	# define lstat(a,b) _stati64 (a,b)
		1811	# endif
		1812
		1813	#define DEF_STAT_INTERVAL 5.0074891
		1814	#define MIN_STAT_INTERVAL 0.1074891
		1815
		1816	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1817
		1818	#if EV_USE_INOTIFY
		1819	# define EV_INOTIFY_BUFSIZE 8192
		1820
		1821	static void noinline
		1822	infy_add (EV_P_ ev_stat *w)
		1823	{
		1824	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);
		1825
		1826	if (w->wd < 0)
		1827	{
		1828	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1829
		1830	/* monitor some parent directory for speedup hints */
		1831	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1832	{
		1833	char path [4096];
		1834	strcpy (path, w->path);
		1835
		1836	do
		1837	{
		1838	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1839	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1840
		1841	char *pend = strrchr (path, '/');
		1842
		1843	if (!pend)
		1844	break; /* whoops, no '/', complain to your admin */
		1845
		1846	*pend = 0;
		1847	w->wd = inotify_add_watch (fs_fd, path, mask);
		1848	}
		1849	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1850	}
		1851	}
		1852	else
		1853	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1854
		1855	if (w->wd >= 0)
		1856	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1857	}
		1858
		1859	static void noinline
		1860	infy_del (EV_P_ ev_stat *w)
		1861	{
		1862	int slot;
		1863	int wd = w->wd;
		1864
		1865	if (wd < 0)
		1866	return;
		1867
		1868	w->wd = -2;
		1869	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1870	wlist_del (&fs_hash [slot].head, (WL)w);
		1871
		1872	/* remove this watcher, if others are watching it, they will rearm */
		1873	inotify_rm_watch (fs_fd, wd);
		1874	}
		1875
		1876	static void noinline
		1877	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1878	{
		1879	if (slot < 0)
		1880	/* overflow, need to check for all hahs slots */
		1881	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1882	infy_wd (EV_A_ slot, wd, ev);
		1883	else
		1884	{
		1885	WL w_;
		1886
		1887	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1888	{
		1889	ev_stat *w = (ev_stat *)w_;
		1890	w_ = w_->next; /* lets us remove this watcher and all before it */
		1891
		1892	if (w->wd == wd || wd == -1)
		1893	{
		1894	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1895	{
		1896	w->wd = -1;
		1897	infy_add (EV_A_ w); /* re-add, no matter what */
		1898	}
		1899
		1900	stat_timer_cb (EV_A_ &w->timer, 0);
		1901	}
		1902	}
		1903	}
		1904	}
		1905
		1906	static void
		1907	infy_cb (EV_P_ ev_io *w, int revents)
		1908	{
		1909	char buf [EV_INOTIFY_BUFSIZE];
		1910	struct inotify_event *ev = (struct inotify_event *)buf;
		1911	int ofs;
		1912	int len = read (fs_fd, buf, sizeof (buf));
		1913
		1914	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1915	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1916	}
		1917
		1918	void inline_size
		1919	infy_init (EV_P)
		1920	{
		1921	if (fs_fd != -2)
		1922	return;
		1923
		1924	fs_fd = inotify_init ();
		1925
		1926	if (fs_fd >= 0)
		1927	{
		1928	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1929	ev_set_priority (&fs_w, EV_MAXPRI);
		1930	ev_io_start (EV_A_ &fs_w);
		1931	}
		1932	}
		1933
		1934	void inline_size
		1935	infy_fork (EV_P)
		1936	{
		1937	int slot;
		1938
		1939	if (fs_fd < 0)
		1940	return;
		1941
		1942	close (fs_fd);
		1943	fs_fd = inotify_init ();
		1944
		1945	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1946	{
		1947	WL w_ = fs_hash [slot].head;
		1948	fs_hash [slot].head = 0;
		1949
		1950	while (w_)
		1951	{
		1952	ev_stat *w = (ev_stat *)w_;
		1953	w_ = w_->next; /* lets us add this watcher */
		1954
		1955	w->wd = -1;
		1956
		1957	if (fs_fd >= 0)
		1958	infy_add (EV_A_ w); /* re-add, no matter what */
		1959	else
		1960	ev_timer_start (EV_A_ &w->timer);
		1961	}
		1962
		1963	}
		1964	}
		1965
		1966	#endif
		1967
		1968	void
		1969	ev_stat_stat (EV_P_ ev_stat *w)
		1970	{
		1971	if (lstat (w->path, &w->attr) < 0)
		1972	w->attr.st_nlink = 0;
		1973	else if (!w->attr.st_nlink)
		1974	w->attr.st_nlink = 1;
		1975	}
		1976
		1977	static void noinline
		1978	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1979	{
		1980	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		1981
		1982	/* we copy this here each the time so that */
		1983	/* prev has the old value when the callback gets invoked */
		1984	w->prev = w->attr;
		1985	ev_stat_stat (EV_A_ w);
		1986
		1987	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1988	if (
		1989	w->prev.st_dev != w->attr.st_dev
		1990	|| w->prev.st_ino != w->attr.st_ino
		1991	|| w->prev.st_mode != w->attr.st_mode
		1992	|| w->prev.st_nlink != w->attr.st_nlink
		1993	|| w->prev.st_uid != w->attr.st_uid
		1994	|| w->prev.st_gid != w->attr.st_gid
		1995	|| w->prev.st_rdev != w->attr.st_rdev
		1996	|| w->prev.st_size != w->attr.st_size
		1997	|| w->prev.st_atime != w->attr.st_atime
		1998	|| w->prev.st_mtime != w->attr.st_mtime
		1999	|| w->prev.st_ctime != w->attr.st_ctime
		2000	) {
		2001	#if EV_USE_INOTIFY
		2002	infy_del (EV_A_ w);
		2003	infy_add (EV_A_ w);
		2004	ev_stat_stat (EV_A_ w); /* avoid race... */
		2005	#endif
		2006
		2007	ev_feed_event (EV_A_ w, EV_STAT);
		2008	}
		2009	}
		2010
		2011	void
		2012	ev_stat_start (EV_P_ ev_stat *w)
		2013	{
		2014	if (expect_false (ev_is_active (w)))
		2015	return;
		2016
		2017	/* since we use memcmp, we need to clear any padding data etc. */
		2018	memset (&w->prev, 0, sizeof (ev_statdata));
		2019	memset (&w->attr, 0, sizeof (ev_statdata));
		2020
		2021	ev_stat_stat (EV_A_ w);
		2022
		2023	if (w->interval < MIN_STAT_INTERVAL)
		2024	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2025
		2026	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2027	ev_set_priority (&w->timer, ev_priority (w));
		2028
		2029	#if EV_USE_INOTIFY
		2030	infy_init (EV_A);
		2031
		2032	if (fs_fd >= 0)
		2033	infy_add (EV_A_ w);
		2034	else
		2035	#endif
		2036	ev_timer_start (EV_A_ &w->timer);
		2037
		2038	ev_start (EV_A_ (W)w, 1);
		2039	}
		2040
		2041	void
		2042	ev_stat_stop (EV_P_ ev_stat *w)
		2043	{
		2044	clear_pending (EV_A_ (W)w);
		2045	if (expect_false (!ev_is_active (w)))
		2046	return;
		2047
		2048	#if EV_USE_INOTIFY
		2049	infy_del (EV_A_ w);
		2050	#endif
		2051	ev_timer_stop (EV_A_ &w->timer);
		2052
		2053	ev_stop (EV_A_ (W)w);
		2054	}
		2055	#endif
		2056
		2057	#if EV_IDLE_ENABLE
		2058	void
		2059	ev_idle_start (EV_P_ ev_idle *w)
		2060	{
		2061	if (expect_false (ev_is_active (w)))
		2062	return;
		2063
		2064	pri_adjust (EV_A_ (W)w);
		2065
		2066	{
		2067	int active = ++idlecnt [ABSPRI (w)];
		2068
		2069	++idleall;
		2070	ev_start (EV_A_ (W)w, active);
		2071
		2072	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2073	idles [ABSPRI (w)][active - 1] = w;
		2074	}
		2075	}
		2076
		2077	void
		2078	ev_idle_stop (EV_P_ ev_idle *w)
		2079	{
		2080	clear_pending (EV_A_ (W)w);
		2081	if (expect_false (!ev_is_active (w)))
		2082	return;
		2083
		2084	{
		2085	int active = ((W)w)->active;
		2086
		2087	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2088	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2089
		2090	ev_stop (EV_A_ (W)w);
		2091	--idleall;
		2092	}
		2093	}
		2094	#endif
		2095
		2096	void
		2097	ev_prepare_start (EV_P_ ev_prepare *w)
		2098	{
		2099	if (expect_false (ev_is_active (w)))
		2100	return;
		2101
		2102	ev_start (EV_A_ (W)w, ++preparecnt);
		2103	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2104	prepares [preparecnt - 1] = w;
		2105	}
		2106
		2107	void
		2108	ev_prepare_stop (EV_P_ ev_prepare *w)
		2109	{
		2110	clear_pending (EV_A_ (W)w);
		2111	if (expect_false (!ev_is_active (w)))
		2112	return;
		2113
		2114	{
		2115	int active = ((W)w)->active;
		2116	prepares [active - 1] = prepares [--preparecnt];
		2117	((W)prepares [active - 1])->active = active;
		2118	}
		2119
		2120	ev_stop (EV_A_ (W)w);
		2121	}
		2122
		2123	void
		2124	ev_check_start (EV_P_ ev_check *w)
		2125	{
		2126	if (expect_false (ev_is_active (w)))
		2127	return;
		2128
		2129	ev_start (EV_A_ (W)w, ++checkcnt);
		2130	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2131	checks [checkcnt - 1] = w;
		2132	}
		2133
		2134	void
		2135	ev_check_stop (EV_P_ ev_check *w)
		2136	{
		2137	clear_pending (EV_A_ (W)w);
		2138	if (expect_false (!ev_is_active (w)))
		2139	return;
		2140
		2141	{
		2142	int active = ((W)w)->active;
		2143	checks [active - 1] = checks [--checkcnt];
		2144	((W)checks [active - 1])->active = active;
		2145	}
		2146
		2147	ev_stop (EV_A_ (W)w);
		2148	}
		2149
		2150	#if EV_EMBED_ENABLE
		2151	void noinline
		2152	ev_embed_sweep (EV_P_ ev_embed *w)
		2153	{
		2154	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2155	}
		2156
		2157	static void
		2158	embed_cb (EV_P_ ev_io *io, int revents)
		2159	{
		2160	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2161
		2162	if (ev_cb (w))
		2163	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2164	else
		2165	ev_embed_sweep (loop, w);
		2166	}
		2167
		2168	void
		2169	ev_embed_start (EV_P_ ev_embed *w)
		2170	{
		2171	if (expect_false (ev_is_active (w)))
		2172	return;
		2173
		2174	{
		2175	struct ev_loop *loop = w->loop;
		2176	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2177	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2178	}
		2179
		2180	ev_set_priority (&w->io, ev_priority (w));
		2181	ev_io_start (EV_A_ &w->io);
		2182
		2183	ev_start (EV_A_ (W)w, 1);
		2184	}
		2185
		2186	void
		2187	ev_embed_stop (EV_P_ ev_embed *w)
		2188	{
		2189	clear_pending (EV_A_ (W)w);
		2190	if (expect_false (!ev_is_active (w)))
		2191	return;
		2192
		2193	ev_io_stop (EV_A_ &w->io);
		2194
		2195	ev_stop (EV_A_ (W)w);
		2196	}
		2197	#endif
		2198
		2199	#if EV_FORK_ENABLE
		2200	void
		2201	ev_fork_start (EV_P_ ev_fork *w)
		2202	{
		2203	if (expect_false (ev_is_active (w)))
		2204	return;
		2205
		2206	ev_start (EV_A_ (W)w, ++forkcnt);
		2207	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2208	forks [forkcnt - 1] = w;
		2209	}
		2210
		2211	void
		2212	ev_fork_stop (EV_P_ ev_fork *w)
		2213	{
		2214	clear_pending (EV_A_ (W)w);
		2215	if (expect_false (!ev_is_active (w)))
		2216	return;
		2217
		2218	{
		2219	int active = ((W)w)->active;
		2220	forks [active - 1] = forks [--forkcnt];
		2221	((W)forks [active - 1])->active = active;
		2222	}
		2223
		2224	ev_stop (EV_A_ (W)w);
		2225	}
		2226	#endif
		2227
1567	/*****************************************************************************/	2228	/*****************************************************************************/
1568		2229
1569	struct ev_once	2230	struct ev_once
1570	{	2231	{
1571	struct ev_io io;	2232	ev_io io;
1572	struct ev_timer to;	2233	ev_timer to;
1573	void (*cb)(int revents, void *arg);	2234	void (*cb)(int revents, void *arg);
1574	void *arg;	2235	void *arg;
1575	};	2236	};
1576		2237
1577	static void	2238	static void
…		…
1586		2247
1587	cb (revents, arg);	2248	cb (revents, arg);
1588	}	2249	}
1589		2250
1590	static void	2251	static void
1591	once_cb_io (EV_P_ struct ev_io *w, int revents)	2252	once_cb_io (EV_P_ ev_io *w, int revents)
1592	{	2253	{
1593	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2254	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1594	}	2255	}
1595		2256
1596	static void	2257	static void
1597	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2258	once_cb_to (EV_P_ ev_timer *w, int revents)
1598	{	2259	{
1599	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2260	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1600	}	2261	}
1601		2262
1602	void	2263	void
1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	2264	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1604	{	2265	{
1605	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	2266	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1606		2267
1607	if (!once)	2268	if (expect_false (!once))
		2269	{
1608	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	2270	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1609	else	2271	return;
1610	{	2272	}
		2273
1611	once->cb = cb;	2274	once->cb = cb;
1612	once->arg = arg;	2275	once->arg = arg;
1613		2276
1614	ev_init (&once->io, once_cb_io);	2277	ev_init (&once->io, once_cb_io);
1615	if (fd >= 0)	2278	if (fd >= 0)
1616	{	2279	{
1617	ev_io_set (&once->io, fd, events);	2280	ev_io_set (&once->io, fd, events);
1618	ev_io_start (EV_A_ &once->io);	2281	ev_io_start (EV_A_ &once->io);
1619	}	2282	}
1620		2283
1621	ev_init (&once->to, once_cb_to);	2284	ev_init (&once->to, once_cb_to);
1622	if (timeout >= 0.)	2285	if (timeout >= 0.)
1623	{	2286	{
1624	ev_timer_set (&once->to, timeout, 0.);	2287	ev_timer_set (&once->to, timeout, 0.);
1625	ev_timer_start (EV_A_ &once->to);	2288	ev_timer_start (EV_A_ &once->to);
1626	}
1627	}	2289	}
1628	}	2290	}
1629		2291
1630	#ifdef __cplusplus	2292	#ifdef __cplusplus
1631	}	2293	}

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