[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC vs.
Revision 1.159 by root, Sat Dec 1 19:48:36 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	/* pid check not overridable via env */
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	910	#ifndef _WIN32
		911	if (flags & EVFLAG_FORKCHECK)
		912	curpid = getpid ();
		913	#endif
		914
		915	if (!(flags & EVFLAG_NOENV)
		916	&& !enable_secure ()
		917	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	918	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else
758	methods = EVMETHOD_ANY;
759		919
760	method = 0;	920	if (!(flags & 0x0000ffffUL))
		921	flags \|= ev_recommended_backends ();
		922
		923	backend = 0;
		924	backend_fd = -1;
761	#if EV_USE_WIN32	925	#if EV_USE_INOTIFY
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	926	fs_fd = -2;
		927	#endif
		928
		929	#if EV_USE_PORT
		930	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
763	#endif	931	#endif
764	#if EV_USE_KQUEUE	932	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	933	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
766	#endif	934	#endif
767	#if EV_USE_EPOLL	935	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	936	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
769	#endif	937	#endif
770	#if EV_USE_POLL	938	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	939	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
772	#endif	940	#endif
773	#if EV_USE_SELECT	941	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	942	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
775	#endif	943	#endif
776		944
777	ev_init (&sigev, sigcb);	945	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	946	ev_set_priority (&sigev, EV_MAXPRI);
779	}	947	}
780	}	948	}
781		949
782	void	950	static void noinline
783	loop_destroy (EV_P)	951	loop_destroy (EV_P)
784	{	952	{
785	int i;	953	int i;
786		954
787	#if EV_USE_WIN32	955	#if EV_USE_INOTIFY
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	956	if (fs_fd >= 0)
		957	close (fs_fd);
		958	#endif
		959
		960	if (backend_fd >= 0)
		961	close (backend_fd);
		962
		963	#if EV_USE_PORT
		964	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	965	#endif
790	#if EV_USE_KQUEUE	966	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	967	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	968	#endif
793	#if EV_USE_EPOLL	969	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	970	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	971	#endif
796	#if EV_USE_POLL	972	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	973	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	974	#endif
799	#if EV_USE_SELECT	975	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	976	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	977	#endif
802		978
803	for (i = NUMPRI; i--; )	979	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	980	array_free (pending, [i]);
805		981
806	/* have to use the microsoft-never-gets-it-right macro */	982	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	983	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	984	array_free (timer, EMPTY0);
809	array_free_microshit (periodic);	985	#if EV_PERIODIC_ENABLE
810	array_free_microshit (idle);	986	array_free (periodic, EMPTY0);
811	array_free_microshit (prepare);	987	#endif
812	array_free_microshit (check);	988	array_free (idle, EMPTY0);
		989	array_free (prepare, EMPTY0);
		990	array_free (check, EMPTY0);
813		991
814	method = 0;	992	backend = 0;
815	}	993	}
816		994
817	static void	995	void inline_size infy_fork (EV_P);
		996
		997	void inline_size
818	loop_fork (EV_P)	998	loop_fork (EV_P)
819	{	999	{
		1000	#if EV_USE_PORT
		1001	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		1002	#endif
		1003	#if EV_USE_KQUEUE
		1004	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		1005	#endif
820	#if EV_USE_EPOLL	1006	#if EV_USE_EPOLL
821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1007	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
822	#endif	1008	#endif
823	#if EV_USE_KQUEUE	1009	#if EV_USE_INOTIFY
824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1010	infy_fork (EV_A);
825	#endif	1011	#endif
826		1012
827	if (ev_is_active (&sigev))	1013	if (ev_is_active (&sigev))
828	{	1014	{
829	/* default loop */	1015	/* default loop */
…		…
842	postfork = 0;	1028	postfork = 0;
843	}	1029	}
844		1030
845	#if EV_MULTIPLICITY	1031	#if EV_MULTIPLICITY
846	struct ev_loop *	1032	struct ev_loop *
847	ev_loop_new (int methods)	1033	ev_loop_new (unsigned int flags)
848	{	1034	{
849	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1035	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
850		1036
851	memset (loop, 0, sizeof (struct ev_loop));	1037	memset (loop, 0, sizeof (struct ev_loop));
852		1038
853	loop_init (EV_A_ methods);	1039	loop_init (EV_A_ flags);
854		1040
855	if (ev_method (EV_A))	1041	if (ev_backend (EV_A))
856	return loop;	1042	return loop;
857		1043
858	return 0;	1044	return 0;
859	}	1045	}
860		1046
…		…
873		1059
874	#endif	1060	#endif
875		1061
876	#if EV_MULTIPLICITY	1062	#if EV_MULTIPLICITY
877	struct ev_loop *	1063	struct ev_loop *
		1064	ev_default_loop_init (unsigned int flags)
878	#else	1065	#else
879	int	1066	int
		1067	ev_default_loop (unsigned int flags)
880	#endif	1068	#endif
881	ev_default_loop (int methods)
882	{	1069	{
883	if (sigpipe [0] == sigpipe [1])	1070	if (sigpipe [0] == sigpipe [1])
884	if (pipe (sigpipe))	1071	if (pipe (sigpipe))
885	return 0;	1072	return 0;
886		1073
887	if (!default_loop)	1074	if (!ev_default_loop_ptr)
888	{	1075	{
889	#if EV_MULTIPLICITY	1076	#if EV_MULTIPLICITY
890	struct ev_loop *loop = default_loop = &default_loop_struct;	1077	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
891	#else	1078	#else
892	default_loop = 1;	1079	ev_default_loop_ptr = 1;
893	#endif	1080	#endif
894		1081
895	loop_init (EV_A_ methods);	1082	loop_init (EV_A_ flags);
896		1083
897	if (ev_method (EV_A))	1084	if (ev_backend (EV_A))
898	{	1085	{
899	siginit (EV_A);	1086	siginit (EV_A);
900		1087
901	#ifndef WIN32	1088	#ifndef _WIN32
902	ev_signal_init (&childev, childcb, SIGCHLD);	1089	ev_signal_init (&childev, childcb, SIGCHLD);
903	ev_set_priority (&childev, EV_MAXPRI);	1090	ev_set_priority (&childev, EV_MAXPRI);
904	ev_signal_start (EV_A_ &childev);	1091	ev_signal_start (EV_A_ &childev);
905	ev_unref (EV_A); /* child watcher should not keep loop alive */	1092	ev_unref (EV_A); /* child watcher should not keep loop alive */
906	#endif	1093	#endif
907	}	1094	}
908	else	1095	else
909	default_loop = 0;	1096	ev_default_loop_ptr = 0;
910	}	1097	}
911		1098
912	return default_loop;	1099	return ev_default_loop_ptr;
913	}	1100	}
914		1101
915	void	1102	void
916	ev_default_destroy (void)	1103	ev_default_destroy (void)
917	{	1104	{
918	#if EV_MULTIPLICITY	1105	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1106	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1107	#endif
921		1108
922	#ifndef WIN32	1109	#ifndef _WIN32
923	ev_ref (EV_A); /* child watcher */	1110	ev_ref (EV_A); /* child watcher */
924	ev_signal_stop (EV_A_ &childev);	1111	ev_signal_stop (EV_A_ &childev);
925	#endif	1112	#endif
926		1113
927	ev_ref (EV_A); /* signal watcher */	1114	ev_ref (EV_A); /* signal watcher */
…		…
935		1122
936	void	1123	void
937	ev_default_fork (void)	1124	ev_default_fork (void)
938	{	1125	{
939	#if EV_MULTIPLICITY	1126	#if EV_MULTIPLICITY
940	struct ev_loop *loop = default_loop;	1127	struct ev_loop *loop = ev_default_loop_ptr;
941	#endif	1128	#endif
942		1129
943	if (method)	1130	if (backend)
944	postfork = 1;	1131	postfork = 1;
945	}	1132	}
946		1133
947	/*****************************************************************************/	1134	/*****************************************************************************/
948		1135
949	static int	1136	int inline_size
950	any_pending (EV_P)	1137	any_pending (EV_P)
951	{	1138	{
952	int pri;	1139	int pri;
953		1140
954	for (pri = NUMPRI; pri--; )	1141	for (pri = NUMPRI; pri--; )
…		…
956	return 1;	1143	return 1;
957		1144
958	return 0;	1145	return 0;
959	}	1146	}
960		1147
961	static void	1148	void inline_speed
962	call_pending (EV_P)	1149	call_pending (EV_P)
963	{	1150	{
964	int pri;	1151	int pri;
965		1152
966	for (pri = NUMPRI; pri--; )	1153	for (pri = NUMPRI; pri--; )
967	while (pendingcnt [pri])	1154	while (pendingcnt [pri])
968	{	1155	{
969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1156	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
970		1157
971	if (p->w)	1158	if (expect_true (p->w))
972	{	1159	{
		1160	/assert (("non-pending watcher on pending list", p->w->pending));/
		1161
973	p->w->pending = 0;	1162	p->w->pending = 0;
974	EV_CB_INVOKE (p->w, p->events);	1163	EV_CB_INVOKE (p->w, p->events);
975	}	1164	}
976	}	1165	}
977	}	1166	}
978		1167
979	static void	1168	void inline_size
980	timers_reify (EV_P)	1169	timers_reify (EV_P)
981	{	1170	{
982	while (timercnt && ((WT)timers [0])->at <= mn_now)	1171	while (timercnt && ((WT)timers [0])->at <= mn_now)
983	{	1172	{
984	struct ev_timer *w = timers [0];	1173	ev_timer *w = timers [0];
985		1174
986	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1175	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
987		1176
988	/* first reschedule or stop timer */	1177	/* first reschedule or stop timer */
989	if (w->repeat)	1178	if (w->repeat)
990	{	1179	{
991	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1180	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1181
992	((WT)w)->at = mn_now + w->repeat;	1182	((WT)w)->at += w->repeat;
		1183	if (((WT)w)->at < mn_now)
		1184	((WT)w)->at = mn_now;
		1185
993	downheap ((WT *)timers, timercnt, 0);	1186	downheap ((WT *)timers, timercnt, 0);
994	}	1187	}
995	else	1188	else
996	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1189	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
997		1190
998	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1191	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
999	}	1192	}
1000	}	1193	}
1001		1194
1002	static void	1195	#if EV_PERIODIC_ENABLE
		1196	void inline_size
1003	periodics_reify (EV_P)	1197	periodics_reify (EV_P)
1004	{	1198	{
1005	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1199	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1006	{	1200	{
1007	struct ev_periodic *w = periodics [0];	1201	ev_periodic *w = periodics [0];
1008		1202
1009	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1203	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1010		1204
1011	/* first reschedule or stop timer */	1205	/* first reschedule or stop timer */
1012	if (w->reschedule_cb)	1206	if (w->reschedule_cb)
1013	{	1207	{
1014	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1208	((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));	1209	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1017	downheap ((WT *)periodics, periodiccnt, 0);	1210	downheap ((WT *)periodics, periodiccnt, 0);
1018	}	1211	}
1019	else if (w->interval)	1212	else if (w->interval)
1020	{	1213	{
…		…
1027		1220
1028	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1221	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1029	}	1222	}
1030	}	1223	}
1031		1224
1032	static void	1225	static void noinline
1033	periodics_reschedule (EV_P)	1226	periodics_reschedule (EV_P)
1034	{	1227	{
1035	int i;	1228	int i;
1036		1229
1037	/* adjust periodics after time jump */	1230	/* adjust periodics after time jump */
1038	for (i = 0; i < periodiccnt; ++i)	1231	for (i = 0; i < periodiccnt; ++i)
1039	{	1232	{
1040	struct ev_periodic *w = periodics [i];	1233	ev_periodic *w = periodics [i];
1041		1234
1042	if (w->reschedule_cb)	1235	if (w->reschedule_cb)
1043	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1044	else if (w->interval)	1237	else if (w->interval)
1045	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1238	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1047		1240
1048	/* now rebuild the heap */	1241	/* now rebuild the heap */
1049	for (i = periodiccnt >> 1; i--; )	1242	for (i = periodiccnt >> 1; i--; )
1050	downheap ((WT *)periodics, periodiccnt, i);	1243	downheap ((WT *)periodics, periodiccnt, i);
1051	}	1244	}
		1245	#endif
1052		1246
1053	inline int	1247	int inline_size
1054	time_update_monotonic (EV_P)	1248	time_update_monotonic (EV_P)
1055	{	1249	{
1056	mn_now = get_clock ();	1250	mn_now = get_clock ();
1057		1251
1058	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1252	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
…		…
1066	ev_rt_now = ev_time ();	1260	ev_rt_now = ev_time ();
1067	return 1;	1261	return 1;
1068	}	1262	}
1069	}	1263	}
1070		1264
1071	static void	1265	void inline_size
1072	time_update (EV_P)	1266	time_update (EV_P)
1073	{	1267	{
1074	int i;	1268	int i;
1075		1269
1076	#if EV_USE_MONOTONIC	1270	#if EV_USE_MONOTONIC
…		…
1078	{	1272	{
1079	if (time_update_monotonic (EV_A))	1273	if (time_update_monotonic (EV_A))
1080	{	1274	{
1081	ev_tstamp odiff = rtmn_diff;	1275	ev_tstamp odiff = rtmn_diff;
1082		1276
1083	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1277	/* loop a few times, before making important decisions.
		1278	* on the choice of "4": one iteration isn't enough,
		1279	* in case we get preempted during the calls to
		1280	* ev_time and get_clock. a second call is almost guaranteed
		1281	* to succeed in that case, though. and looping a few more times
		1282	* doesn't hurt either as we only do this on time-jumps or
		1283	* in the unlikely event of having been preempted here.
		1284	*/
		1285	for (i = 4; --i; )
1084	{	1286	{
1085	rtmn_diff = ev_rt_now - mn_now;	1287	rtmn_diff = ev_rt_now - mn_now;
1086		1288
1087	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1289	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1088	return; /* all is well */	1290	return; /* all is well */
…		…
1090	ev_rt_now = ev_time ();	1292	ev_rt_now = ev_time ();
1091	mn_now = get_clock ();	1293	mn_now = get_clock ();
1092	now_floor = mn_now;	1294	now_floor = mn_now;
1093	}	1295	}
1094		1296
		1297	# if EV_PERIODIC_ENABLE
1095	periodics_reschedule (EV_A);	1298	periodics_reschedule (EV_A);
		1299	# endif
1096	/* no timer adjustment, as the monotonic clock doesn't jump */	1300	/* no timer adjustment, as the monotonic clock doesn't jump */
1097	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1301	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1098	}	1302	}
1099	}	1303	}
1100	else	1304	else
…		…
1102	{	1306	{
1103	ev_rt_now = ev_time ();	1307	ev_rt_now = ev_time ();
1104		1308
1105	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1309	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1106	{	1310	{
		1311	#if EV_PERIODIC_ENABLE
1107	periodics_reschedule (EV_A);	1312	periodics_reschedule (EV_A);
		1313	#endif
1108		1314
1109	/* adjust timers. this is easy, as the offset is the same for all */	1315	/* adjust timers. this is easy, as the offset is the same for all of them */
1110	for (i = 0; i < timercnt; ++i)	1316	for (i = 0; i < timercnt; ++i)
1111	((WT)timers [i])->at += ev_rt_now - mn_now;	1317	((WT)timers [i])->at += ev_rt_now - mn_now;
1112	}	1318	}
1113		1319
1114	mn_now = ev_rt_now;	1320	mn_now = ev_rt_now;
…		…
1130	static int loop_done;	1336	static int loop_done;
1131		1337
1132	void	1338	void
1133	ev_loop (EV_P_ int flags)	1339	ev_loop (EV_P_ int flags)
1134	{	1340	{
1135	double block;
1136	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1341	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1342	? EVUNLOOP_ONE
		1343	: EVUNLOOP_CANCEL;
1137		1344
1138	do	1345	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1346
		1347	for (;;)
1139	{	1348	{
		1349	#ifndef _WIN32
		1350	if (expect_false (curpid)) /* penalise the forking check even more */
		1351	if (expect_false (getpid () != curpid))
		1352	{
		1353	curpid = getpid ();
		1354	postfork = 1;
		1355	}
		1356	#endif
		1357
		1358	#if EV_FORK_ENABLE
		1359	/* we might have forked, so queue fork handlers */
		1360	if (expect_false (postfork))
		1361	if (forkcnt)
		1362	{
		1363	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1364	call_pending (EV_A);
		1365	}
		1366	#endif
		1367
1140	/* queue check watchers (and execute them) */	1368	/* queue check watchers (and execute them) */
1141	if (expect_false (preparecnt))	1369	if (expect_false (preparecnt))
1142	{	1370	{
1143	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1371	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1144	call_pending (EV_A);	1372	call_pending (EV_A);
1145	}	1373	}
1146		1374
		1375	if (expect_false (!activecnt))
		1376	break;
		1377
1147	/* we might have forked, so reify kernel state if necessary */	1378	/* we might have forked, so reify kernel state if necessary */
1148	if (expect_false (postfork))	1379	if (expect_false (postfork))
1149	loop_fork (EV_A);	1380	loop_fork (EV_A);
1150		1381
1151	/* update fd-related kernel structures */	1382	/* update fd-related kernel structures */
1152	fd_reify (EV_A);	1383	fd_reify (EV_A);
1153		1384
1154	/* calculate blocking time */	1385	/* calculate blocking time */
		1386	{
		1387	ev_tstamp block;
1155		1388
1156	/* we only need this for !monotonic clock or timers, but as we basically	1389	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1157	always have timers, we just calculate it always */	1390	block = 0.; /* do not block at all */
		1391	else
		1392	{
		1393	/* update time to cancel out callback processing overhead */
1158	#if EV_USE_MONOTONIC	1394	#if EV_USE_MONOTONIC
1159	if (expect_true (have_monotonic))	1395	if (expect_true (have_monotonic))
1160	time_update_monotonic (EV_A);	1396	time_update_monotonic (EV_A);
1161	else	1397	else
1162	#endif	1398	#endif
1163	{	1399	{
1164	ev_rt_now = ev_time ();	1400	ev_rt_now = ev_time ();
1165	mn_now = ev_rt_now;	1401	mn_now = ev_rt_now;
1166	}	1402	}
1167		1403
1168	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1169	block = 0.;
1170	else
1171	{
1172	block = MAX_BLOCKTIME;	1404	block = MAX_BLOCKTIME;
1173		1405
1174	if (timercnt)	1406	if (timercnt)
1175	{	1407	{
1176	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1408	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1177	if (block > to) block = to;	1409	if (block > to) block = to;
1178	}	1410	}
1179		1411
		1412	#if EV_PERIODIC_ENABLE
1180	if (periodiccnt)	1413	if (periodiccnt)
1181	{	1414	{
1182	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1415	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1183	if (block > to) block = to;	1416	if (block > to) block = to;
1184	}	1417	}
		1418	#endif
1185		1419
1186	if (block < 0.) block = 0.;	1420	if (expect_false (block < 0.)) block = 0.;
1187	}	1421	}
1188		1422
1189	method_poll (EV_A_ block);	1423	backend_poll (EV_A_ block);
		1424	}
1190		1425
1191	/* update ev_rt_now, do magic */	1426	/* update ev_rt_now, do magic */
1192	time_update (EV_A);	1427	time_update (EV_A);
1193		1428
1194	/* queue pending timers and reschedule them */	1429	/* queue pending timers and reschedule them */
1195	timers_reify (EV_A); /* relative timers called last */	1430	timers_reify (EV_A); /* relative timers called last */
		1431	#if EV_PERIODIC_ENABLE
1196	periodics_reify (EV_A); /* absolute timers called first */	1432	periodics_reify (EV_A); /* absolute timers called first */
		1433	#endif
1197		1434
1198	/* queue idle watchers unless io or timers are pending */	1435	/* queue idle watchers unless other events are pending */
1199	if (idlecnt && !any_pending (EV_A))	1436	if (idlecnt && !any_pending (EV_A))
1200	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1437	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1201		1438
1202	/* queue check watchers, to be executed first */	1439	/* queue check watchers, to be executed first */
1203	if (checkcnt)	1440	if (expect_false (checkcnt))
1204	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1441	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1205		1442
1206	call_pending (EV_A);	1443	call_pending (EV_A);
1207	}
1208	while (activecnt && !loop_done);
1209		1444
1210	if (loop_done != 2)	1445	if (expect_false (loop_done))
1211	loop_done = 0;	1446	break;
		1447	}
		1448
		1449	if (loop_done == EVUNLOOP_ONE)
		1450	loop_done = EVUNLOOP_CANCEL;
1212	}	1451	}
1213		1452
1214	void	1453	void
1215	ev_unloop (EV_P_ int how)	1454	ev_unloop (EV_P_ int how)
1216	{	1455	{
1217	loop_done = how;	1456	loop_done = how;
1218	}	1457	}
1219		1458
1220	/*****************************************************************************/	1459	/*****************************************************************************/
1221		1460
1222	inline void	1461	void inline_size
1223	wlist_add (WL *head, WL elem)	1462	wlist_add (WL *head, WL elem)
1224	{	1463	{
1225	elem->next = *head;	1464	elem->next = *head;
1226	*head = elem;	1465	*head = elem;
1227	}	1466	}
1228		1467
1229	inline void	1468	void inline_size
1230	wlist_del (WL *head, WL elem)	1469	wlist_del (WL *head, WL elem)
1231	{	1470	{
1232	while (*head)	1471	while (*head)
1233	{	1472	{
1234	if (*head == elem)	1473	if (*head == elem)
…		…
1239		1478
1240	head = &(*head)->next;	1479	head = &(*head)->next;
1241	}	1480	}
1242	}	1481	}
1243		1482
1244	inline void	1483	void inline_speed
1245	ev_clear_pending (EV_P_ W w)	1484	ev_clear_pending (EV_P_ W w)
1246	{	1485	{
1247	if (w->pending)	1486	if (w->pending)
1248	{	1487	{
1249	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1488	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1250	w->pending = 0;	1489	w->pending = 0;
1251	}	1490	}
1252	}	1491	}
1253		1492
1254	inline void	1493	void inline_speed
1255	ev_start (EV_P_ W w, int active)	1494	ev_start (EV_P_ W w, int active)
1256	{	1495	{
1257	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1496	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1258	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1497	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1259		1498
1260	w->active = active;	1499	w->active = active;
1261	ev_ref (EV_A);	1500	ev_ref (EV_A);
1262	}	1501	}
1263		1502
1264	inline void	1503	void inline_size
1265	ev_stop (EV_P_ W w)	1504	ev_stop (EV_P_ W w)
1266	{	1505	{
1267	ev_unref (EV_A);	1506	ev_unref (EV_A);
1268	w->active = 0;	1507	w->active = 0;
1269	}	1508	}
1270		1509
1271	/*****************************************************************************/	1510	/*****************************************************************************/
1272		1511
1273	void	1512	void
1274	ev_io_start (EV_P_ struct ev_io *w)	1513	ev_io_start (EV_P_ ev_io *w)
1275	{	1514	{
1276	int fd = w->fd;	1515	int fd = w->fd;
1277		1516
1278	if (ev_is_active (w))	1517	if (expect_false (ev_is_active (w)))
1279	return;	1518	return;
1280		1519
1281	assert (("ev_io_start called with negative fd", fd >= 0));	1520	assert (("ev_io_start called with negative fd", fd >= 0));
1282		1521
1283	ev_start (EV_A_ (W)w, 1);	1522	ev_start (EV_A_ (W)w, 1);
…		…
1286		1525
1287	fd_change (EV_A_ fd);	1526	fd_change (EV_A_ fd);
1288	}	1527	}
1289		1528
1290	void	1529	void
1291	ev_io_stop (EV_P_ struct ev_io *w)	1530	ev_io_stop (EV_P_ ev_io *w)
1292	{	1531	{
1293	ev_clear_pending (EV_A_ (W)w);	1532	ev_clear_pending (EV_A_ (W)w);
1294	if (!ev_is_active (w))	1533	if (expect_false (!ev_is_active (w)))
1295	return;	1534	return;
1296		1535
1297	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1536	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1298		1537
1299	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1538	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1301		1540
1302	fd_change (EV_A_ w->fd);	1541	fd_change (EV_A_ w->fd);
1303	}	1542	}
1304		1543
1305	void	1544	void
1306	ev_timer_start (EV_P_ struct ev_timer *w)	1545	ev_timer_start (EV_P_ ev_timer *w)
1307	{	1546	{
1308	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1309	return;	1548	return;
1310		1549
1311	((WT)w)->at += mn_now;	1550	((WT)w)->at += mn_now;
1312		1551
1313	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1552	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1314		1553
1315	ev_start (EV_A_ (W)w, ++timercnt);	1554	ev_start (EV_A_ (W)w, ++timercnt);
1316	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1555	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1317	timers [timercnt - 1] = w;	1556	timers [timercnt - 1] = w;
1318	upheap ((WT *)timers, timercnt - 1);	1557	upheap ((WT *)timers, timercnt - 1);
1319		1558
		1559	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
		1560	}
		1561
		1562	void
		1563	ev_timer_stop (EV_P_ ev_timer *w)
		1564	{
		1565	ev_clear_pending (EV_A_ (W)w);
		1566	if (expect_false (!ev_is_active (w)))
		1567	return;
		1568
1320	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1569	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1321	}
1322		1570
1323	void	1571	{
1324	ev_timer_stop (EV_P_ struct ev_timer *w)	1572	int active = ((W)w)->active;
1325	{
1326	ev_clear_pending (EV_A_ (W)w);
1327	if (!ev_is_active (w))
1328	return;
1329		1573
1330	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1574	if (expect_true (--active < --timercnt))
1331
1332	if (((W)w)->active < timercnt--)
1333	{	1575	{
1334	timers [((W)w)->active - 1] = timers [timercnt];	1576	timers [active] = timers [timercnt];
1335	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1577	adjustheap ((WT *)timers, timercnt, active);
1336	}	1578	}
		1579	}
1337		1580
1338	((WT)w)->at = w->repeat;	1581	((WT)w)->at -= mn_now;
1339		1582
1340	ev_stop (EV_A_ (W)w);	1583	ev_stop (EV_A_ (W)w);
1341	}	1584	}
1342		1585
1343	void	1586	void
1344	ev_timer_again (EV_P_ struct ev_timer *w)	1587	ev_timer_again (EV_P_ ev_timer *w)
1345	{	1588	{
1346	if (ev_is_active (w))	1589	if (ev_is_active (w))
1347	{	1590	{
1348	if (w->repeat)	1591	if (w->repeat)
		1592	{
		1593	((WT)w)->at = mn_now + w->repeat;
1349	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1594	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1595	}
1350	else	1596	else
1351	ev_timer_stop (EV_A_ w);	1597	ev_timer_stop (EV_A_ w);
1352	}	1598	}
1353	else if (w->repeat)	1599	else if (w->repeat)
		1600	{
		1601	w->at = w->repeat;
1354	ev_timer_start (EV_A_ w);	1602	ev_timer_start (EV_A_ w);
		1603	}
1355	}	1604	}
1356		1605
		1606	#if EV_PERIODIC_ENABLE
1357	void	1607	void
1358	ev_periodic_start (EV_P_ struct ev_periodic *w)	1608	ev_periodic_start (EV_P_ ev_periodic *w)
1359	{	1609	{
1360	if (ev_is_active (w))	1610	if (expect_false (ev_is_active (w)))
1361	return;	1611	return;
1362		1612
1363	if (w->reschedule_cb)	1613	if (w->reschedule_cb)
1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1614	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1365	else if (w->interval)	1615	else if (w->interval)
…		…
1368	/* this formula differs from the one in periodic_reify because we do not always round up */	1618	/* 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;	1619	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1370	}	1620	}
1371		1621
1372	ev_start (EV_A_ (W)w, ++periodiccnt);	1622	ev_start (EV_A_ (W)w, ++periodiccnt);
1373	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1623	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1374	periodics [periodiccnt - 1] = w;	1624	periodics [periodiccnt - 1] = w;
1375	upheap ((WT *)periodics, periodiccnt - 1);	1625	upheap ((WT *)periodics, periodiccnt - 1);
1376		1626
		1627	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
		1628	}
		1629
		1630	void
		1631	ev_periodic_stop (EV_P_ ev_periodic *w)
		1632	{
		1633	ev_clear_pending (EV_A_ (W)w);
		1634	if (expect_false (!ev_is_active (w)))
		1635	return;
		1636
1377	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1637	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1378	}
1379		1638
1380	void	1639	{
1381	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1640	int active = ((W)w)->active;
1382	{
1383	ev_clear_pending (EV_A_ (W)w);
1384	if (!ev_is_active (w))
1385	return;
1386		1641
1387	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1642	if (expect_true (--active < --periodiccnt))
1388
1389	if (((W)w)->active < periodiccnt--)
1390	{	1643	{
1391	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1644	periodics [active] = periodics [periodiccnt];
1392	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1645	adjustheap ((WT *)periodics, periodiccnt, active);
1393	}	1646	}
		1647	}
1394		1648
1395	ev_stop (EV_A_ (W)w);	1649	ev_stop (EV_A_ (W)w);
1396	}	1650	}
1397		1651
1398	void	1652	void
1399	ev_periodic_again (EV_P_ struct ev_periodic *w)	1653	ev_periodic_again (EV_P_ ev_periodic *w)
1400	{	1654	{
1401	/* TODO: use adjustheap and recalculation */	1655	/* TODO: use adjustheap and recalculation */
1402	ev_periodic_stop (EV_A_ w);	1656	ev_periodic_stop (EV_A_ w);
1403	ev_periodic_start (EV_A_ w);	1657	ev_periodic_start (EV_A_ w);
1404	}	1658	}
1405		1659	#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		1660
1472	#ifndef SA_RESTART	1661	#ifndef SA_RESTART
1473	# define SA_RESTART 0	1662	# define SA_RESTART 0
1474	#endif	1663	#endif
1475		1664
1476	void	1665	void
1477	ev_signal_start (EV_P_ struct ev_signal *w)	1666	ev_signal_start (EV_P_ ev_signal *w)
1478	{	1667	{
1479	#if EV_MULTIPLICITY	1668	#if EV_MULTIPLICITY
1480	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1669	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1481	#endif	1670	#endif
1482	if (ev_is_active (w))	1671	if (expect_false (ev_is_active (w)))
1483	return;	1672	return;
1484		1673
1485	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1674	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1486		1675
1487	ev_start (EV_A_ (W)w, 1);	1676	ev_start (EV_A_ (W)w, 1);
1488	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1677	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1489	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1678	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1490		1679
1491	if (!((WL)w)->next)	1680	if (!((WL)w)->next)
1492	{	1681	{
1493	#if WIN32	1682	#if _WIN32
1494	signal (w->signum, sighandler);	1683	signal (w->signum, sighandler);
1495	#else	1684	#else
1496	struct sigaction sa;	1685	struct sigaction sa;
1497	sa.sa_handler = sighandler;	1686	sa.sa_handler = sighandler;
1498	sigfillset (&sa.sa_mask);	1687	sigfillset (&sa.sa_mask);
…		…
1501	#endif	1690	#endif
1502	}	1691	}
1503	}	1692	}
1504		1693
1505	void	1694	void
1506	ev_signal_stop (EV_P_ struct ev_signal *w)	1695	ev_signal_stop (EV_P_ ev_signal *w)
1507	{	1696	{
1508	ev_clear_pending (EV_A_ (W)w);	1697	ev_clear_pending (EV_A_ (W)w);
1509	if (!ev_is_active (w))	1698	if (expect_false (!ev_is_active (w)))
1510	return;	1699	return;
1511		1700
1512	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1701	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1513	ev_stop (EV_A_ (W)w);	1702	ev_stop (EV_A_ (W)w);
1514		1703
1515	if (!signals [w->signum - 1].head)	1704	if (!signals [w->signum - 1].head)
1516	signal (w->signum, SIG_DFL);	1705	signal (w->signum, SIG_DFL);
1517	}	1706	}
1518		1707
1519	void	1708	void
1520	ev_child_start (EV_P_ struct ev_child *w)	1709	ev_child_start (EV_P_ ev_child *w)
1521	{	1710	{
1522	#if EV_MULTIPLICITY	1711	#if EV_MULTIPLICITY
1523	assert (("child watchers are only supported in the default loop", loop == default_loop));	1712	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1524	#endif	1713	#endif
1525	if (ev_is_active (w))	1714	if (expect_false (ev_is_active (w)))
1526	return;	1715	return;
1527		1716
1528	ev_start (EV_A_ (W)w, 1);	1717	ev_start (EV_A_ (W)w, 1);
1529	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1718	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1530	}	1719	}
1531		1720
1532	void	1721	void
1533	ev_child_stop (EV_P_ struct ev_child *w)	1722	ev_child_stop (EV_P_ ev_child *w)
1534	{	1723	{
1535	ev_clear_pending (EV_A_ (W)w);	1724	ev_clear_pending (EV_A_ (W)w);
1536	if (ev_is_active (w))	1725	if (expect_false (!ev_is_active (w)))
1537	return;	1726	return;
1538		1727
1539	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1728	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1540	ev_stop (EV_A_ (W)w);	1729	ev_stop (EV_A_ (W)w);
1541	}	1730	}
1542		1731
		1732	#if EV_STAT_ENABLE
		1733
		1734	# ifdef _WIN32
		1735	# undef lstat
		1736	# define lstat(a,b) _stati64 (a,b)
		1737	# endif
		1738
		1739	#define DEF_STAT_INTERVAL 5.0074891
		1740	#define MIN_STAT_INTERVAL 0.1074891
		1741
		1742	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1743
		1744	#if EV_USE_INOTIFY
		1745	# define EV_INOTIFY_BUFSIZE 8192
		1746
		1747	static void noinline
		1748	infy_add (EV_P_ ev_stat *w)
		1749	{
		1750	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);
		1751
		1752	if (w->wd < 0)
		1753	{
		1754	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1755
		1756	/* monitor some parent directory for speedup hints */
		1757	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
		1758	{
		1759	char path [4096];
		1760	strcpy (path, w->path);
		1761
		1762	do
		1763	{
		1764	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
		1765	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
		1766
		1767	char *pend = strrchr (path, '/');
		1768
		1769	if (!pend)
		1770	break; /* whoops, no '/', complain to your admin */
		1771
		1772	*pend = 0;
		1773	w->wd = inotify_add_watch (fs_fd, path, mask);
		1774	}
		1775	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
		1776	}
		1777	}
		1778	else
		1779	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1780
		1781	if (w->wd >= 0)
		1782	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1783	}
		1784
		1785	static void noinline
		1786	infy_del (EV_P_ ev_stat *w)
		1787	{
		1788	int slot;
		1789	int wd = w->wd;
		1790
		1791	if (wd < 0)
		1792	return;
		1793
		1794	w->wd = -2;
		1795	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1796	wlist_del (&fs_hash [slot].head, (WL)w);
		1797
		1798	/* remove this watcher, if others are watching it, they will rearm */
		1799	inotify_rm_watch (fs_fd, wd);
		1800	}
		1801
		1802	static void noinline
		1803	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1804	{
		1805	if (slot < 0)
		1806	/* overflow, need to check for all hahs slots */
		1807	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1808	infy_wd (EV_A_ slot, wd, ev);
		1809	else
		1810	{
		1811	WL w_;
		1812
		1813	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1814	{
		1815	ev_stat w = (ev_stat )w_;
		1816	w_ = w_->next; /* lets us remove this watcher and all before it */
		1817
		1818	if (w->wd == wd \|\| wd == -1)
		1819	{
		1820	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
		1821	{
		1822	w->wd = -1;
		1823	infy_add (EV_A_ w); /* re-add, no matter what */
		1824	}
		1825
		1826	stat_timer_cb (EV_A_ &w->timer, 0);
		1827	}
		1828	}
		1829	}
		1830	}
		1831
		1832	static void
		1833	infy_cb (EV_P_ ev_io *w, int revents)
		1834	{
		1835	char buf [EV_INOTIFY_BUFSIZE];
		1836	struct inotify_event ev = (struct inotify_event )buf;
		1837	int ofs;
		1838	int len = read (fs_fd, buf, sizeof (buf));
		1839
		1840	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1841	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1842	}
		1843
		1844	void inline_size
		1845	infy_init (EV_P)
		1846	{
		1847	if (fs_fd != -2)
		1848	return;
		1849
		1850	fs_fd = inotify_init ();
		1851
		1852	if (fs_fd >= 0)
		1853	{
		1854	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1855	ev_set_priority (&fs_w, EV_MAXPRI);
		1856	ev_io_start (EV_A_ &fs_w);
		1857	}
		1858	}
		1859
		1860	void inline_size
		1861	infy_fork (EV_P)
		1862	{
		1863	int slot;
		1864
		1865	if (fs_fd < 0)
		1866	return;
		1867
		1868	close (fs_fd);
		1869	fs_fd = inotify_init ();
		1870
		1871	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1872	{
		1873	WL w_ = fs_hash [slot].head;
		1874	fs_hash [slot].head = 0;
		1875
		1876	while (w_)
		1877	{
		1878	ev_stat w = (ev_stat )w_;
		1879	w_ = w_->next; /* lets us add this watcher */
		1880
		1881	w->wd = -1;
		1882
		1883	if (fs_fd >= 0)
		1884	infy_add (EV_A_ w); /* re-add, no matter what */
		1885	else
		1886	ev_timer_start (EV_A_ &w->timer);
		1887	}
		1888
		1889	}
		1890	}
		1891
		1892	#endif
		1893
		1894	void
		1895	ev_stat_stat (EV_P_ ev_stat *w)
		1896	{
		1897	if (lstat (w->path, &w->attr) < 0)
		1898	w->attr.st_nlink = 0;
		1899	else if (!w->attr.st_nlink)
		1900	w->attr.st_nlink = 1;
		1901	}
		1902
		1903	static void noinline
		1904	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1905	{
		1906	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
		1907
		1908	/* we copy this here each the time so that */
		1909	/* prev has the old value when the callback gets invoked */
		1910	w->prev = w->attr;
		1911	ev_stat_stat (EV_A_ w);
		1912
		1913	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1914	if (
		1915	w->prev.st_dev != w->attr.st_dev
		1916	\|\| w->prev.st_ino != w->attr.st_ino
		1917	\|\| w->prev.st_mode != w->attr.st_mode
		1918	\|\| w->prev.st_nlink != w->attr.st_nlink
		1919	\|\| w->prev.st_uid != w->attr.st_uid
		1920	\|\| w->prev.st_gid != w->attr.st_gid
		1921	\|\| w->prev.st_rdev != w->attr.st_rdev
		1922	\|\| w->prev.st_size != w->attr.st_size
		1923	\|\| w->prev.st_atime != w->attr.st_atime
		1924	\|\| w->prev.st_mtime != w->attr.st_mtime
		1925	\|\| w->prev.st_ctime != w->attr.st_ctime
		1926	) {
		1927	#if EV_USE_INOTIFY
		1928	infy_del (EV_A_ w);
		1929	infy_add (EV_A_ w);
		1930	ev_stat_stat (EV_A_ w); /* avoid race... */
		1931	#endif
		1932
		1933	ev_feed_event (EV_A_ w, EV_STAT);
		1934	}
		1935	}
		1936
		1937	void
		1938	ev_stat_start (EV_P_ ev_stat *w)
		1939	{
		1940	if (expect_false (ev_is_active (w)))
		1941	return;
		1942
		1943	/* since we use memcmp, we need to clear any padding data etc. */
		1944	memset (&w->prev, 0, sizeof (ev_statdata));
		1945	memset (&w->attr, 0, sizeof (ev_statdata));
		1946
		1947	ev_stat_stat (EV_A_ w);
		1948
		1949	if (w->interval < MIN_STAT_INTERVAL)
		1950	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		1951
		1952	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1953	ev_set_priority (&w->timer, ev_priority (w));
		1954
		1955	#if EV_USE_INOTIFY
		1956	infy_init (EV_A);
		1957
		1958	if (fs_fd >= 0)
		1959	infy_add (EV_A_ w);
		1960	else
		1961	#endif
		1962	ev_timer_start (EV_A_ &w->timer);
		1963
		1964	ev_start (EV_A_ (W)w, 1);
		1965	}
		1966
		1967	void
		1968	ev_stat_stop (EV_P_ ev_stat *w)
		1969	{
		1970	ev_clear_pending (EV_A_ (W)w);
		1971	if (expect_false (!ev_is_active (w)))
		1972	return;
		1973
		1974	#if EV_USE_INOTIFY
		1975	infy_del (EV_A_ w);
		1976	#endif
		1977	ev_timer_stop (EV_A_ &w->timer);
		1978
		1979	ev_stop (EV_A_ (W)w);
		1980	}
		1981	#endif
		1982
		1983	void
		1984	ev_idle_start (EV_P_ ev_idle *w)
		1985	{
		1986	if (expect_false (ev_is_active (w)))
		1987	return;
		1988
		1989	ev_start (EV_A_ (W)w, ++idlecnt);
		1990	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1991	idles [idlecnt - 1] = w;
		1992	}
		1993
		1994	void
		1995	ev_idle_stop (EV_P_ ev_idle *w)
		1996	{
		1997	ev_clear_pending (EV_A_ (W)w);
		1998	if (expect_false (!ev_is_active (w)))
		1999	return;
		2000
		2001	{
		2002	int active = ((W)w)->active;
		2003	idles [active - 1] = idles [--idlecnt];
		2004	((W)idles [active - 1])->active = active;
		2005	}
		2006
		2007	ev_stop (EV_A_ (W)w);
		2008	}
		2009
		2010	void
		2011	ev_prepare_start (EV_P_ ev_prepare *w)
		2012	{
		2013	if (expect_false (ev_is_active (w)))
		2014	return;
		2015
		2016	ev_start (EV_A_ (W)w, ++preparecnt);
		2017	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2018	prepares [preparecnt - 1] = w;
		2019	}
		2020
		2021	void
		2022	ev_prepare_stop (EV_P_ ev_prepare *w)
		2023	{
		2024	ev_clear_pending (EV_A_ (W)w);
		2025	if (expect_false (!ev_is_active (w)))
		2026	return;
		2027
		2028	{
		2029	int active = ((W)w)->active;
		2030	prepares [active - 1] = prepares [--preparecnt];
		2031	((W)prepares [active - 1])->active = active;
		2032	}
		2033
		2034	ev_stop (EV_A_ (W)w);
		2035	}
		2036
		2037	void
		2038	ev_check_start (EV_P_ ev_check *w)
		2039	{
		2040	if (expect_false (ev_is_active (w)))
		2041	return;
		2042
		2043	ev_start (EV_A_ (W)w, ++checkcnt);
		2044	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2045	checks [checkcnt - 1] = w;
		2046	}
		2047
		2048	void
		2049	ev_check_stop (EV_P_ ev_check *w)
		2050	{
		2051	ev_clear_pending (EV_A_ (W)w);
		2052	if (expect_false (!ev_is_active (w)))
		2053	return;
		2054
		2055	{
		2056	int active = ((W)w)->active;
		2057	checks [active - 1] = checks [--checkcnt];
		2058	((W)checks [active - 1])->active = active;
		2059	}
		2060
		2061	ev_stop (EV_A_ (W)w);
		2062	}
		2063
		2064	#if EV_EMBED_ENABLE
		2065	void noinline
		2066	ev_embed_sweep (EV_P_ ev_embed *w)
		2067	{
		2068	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2069	}
		2070
		2071	static void
		2072	embed_cb (EV_P_ ev_io *io, int revents)
		2073	{
		2074	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
		2075
		2076	if (ev_cb (w))
		2077	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2078	else
		2079	ev_embed_sweep (loop, w);
		2080	}
		2081
		2082	void
		2083	ev_embed_start (EV_P_ ev_embed *w)
		2084	{
		2085	if (expect_false (ev_is_active (w)))
		2086	return;
		2087
		2088	{
		2089	struct ev_loop *loop = w->loop;
		2090	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2091	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2092	}
		2093
		2094	ev_set_priority (&w->io, ev_priority (w));
		2095	ev_io_start (EV_A_ &w->io);
		2096
		2097	ev_start (EV_A_ (W)w, 1);
		2098	}
		2099
		2100	void
		2101	ev_embed_stop (EV_P_ ev_embed *w)
		2102	{
		2103	ev_clear_pending (EV_A_ (W)w);
		2104	if (expect_false (!ev_is_active (w)))
		2105	return;
		2106
		2107	ev_io_stop (EV_A_ &w->io);
		2108
		2109	ev_stop (EV_A_ (W)w);
		2110	}
		2111	#endif
		2112
		2113	#if EV_FORK_ENABLE
		2114	void
		2115	ev_fork_start (EV_P_ ev_fork *w)
		2116	{
		2117	if (expect_false (ev_is_active (w)))
		2118	return;
		2119
		2120	ev_start (EV_A_ (W)w, ++forkcnt);
		2121	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2122	forks [forkcnt - 1] = w;
		2123	}
		2124
		2125	void
		2126	ev_fork_stop (EV_P_ ev_fork *w)
		2127	{
		2128	ev_clear_pending (EV_A_ (W)w);
		2129	if (expect_false (!ev_is_active (w)))
		2130	return;
		2131
		2132	{
		2133	int active = ((W)w)->active;
		2134	forks [active - 1] = forks [--forkcnt];
		2135	((W)forks [active - 1])->active = active;
		2136	}
		2137
		2138	ev_stop (EV_A_ (W)w);
		2139	}
		2140	#endif
		2141
1543	/*****************************************************************************/	2142	/*****************************************************************************/
1544		2143
1545	struct ev_once	2144	struct ev_once
1546	{	2145	{
1547	struct ev_io io;	2146	ev_io io;
1548	struct ev_timer to;	2147	ev_timer to;
1549	void (cb)(int revents, void arg);	2148	void (cb)(int revents, void arg);
1550	void *arg;	2149	void *arg;
1551	};	2150	};
1552		2151
1553	static void	2152	static void
…		…
1562		2161
1563	cb (revents, arg);	2162	cb (revents, arg);
1564	}	2163	}
1565		2164
1566	static void	2165	static void
1567	once_cb_io (EV_P_ struct ev_io *w, int revents)	2166	once_cb_io (EV_P_ ev_io *w, int revents)
1568	{	2167	{
1569	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	2168	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1570	}	2169	}
1571		2170
1572	static void	2171	static void
1573	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2172	once_cb_to (EV_P_ ev_timer *w, int revents)
1574	{	2173	{
1575	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	2174	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1576	}	2175	}
1577		2176
1578	void	2177	void
1579	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	2178	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1580	{	2179	{
1581	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	2180	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1582		2181
1583	if (!once)	2182	if (expect_false (!once))
		2183	{
1584	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	2184	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1585	else	2185	return;
1586	{	2186	}
		2187
1587	once->cb = cb;	2188	once->cb = cb;
1588	once->arg = arg;	2189	once->arg = arg;
1589		2190
1590	ev_init (&once->io, once_cb_io);	2191	ev_init (&once->io, once_cb_io);
1591	if (fd >= 0)	2192	if (fd >= 0)
1592	{	2193	{
1593	ev_io_set (&once->io, fd, events);	2194	ev_io_set (&once->io, fd, events);
1594	ev_io_start (EV_A_ &once->io);	2195	ev_io_start (EV_A_ &once->io);
1595	}	2196	}
1596		2197
1597	ev_init (&once->to, once_cb_to);	2198	ev_init (&once->to, once_cb_to);
1598	if (timeout >= 0.)	2199	if (timeout >= 0.)
1599	{	2200	{
1600	ev_timer_set (&once->to, timeout, 0.);	2201	ev_timer_set (&once->to, timeout, 0.);
1601	ev_timer_start (EV_A_ &once->to);	2202	ev_timer_start (EV_A_ &once->to);
1602	}
1603	}	2203	}
1604	}	2204	}
1605		2205
1606	#ifdef __cplusplus	2206	#ifdef __cplusplus
1607	}	2207	}

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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 1.159 by root, Sat Dec 1 19:48:36 2007 UTC

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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 1.159 by root, Sat Dec 1 19:48:36 2007 UTC