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Comparing libev/ev.c (file contents):
Revision 1.81 by root, Fri Nov 9 17:07:59 2007 UTC vs.
Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
32	# include "config.h"	40	# include "config.h"
		41	# endif
33		42
34	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
36	# 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
37	# endif	57	# endif
38		58
		59	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
41	# endif	65	# endif
42		66
		67	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
45	# endif	73	# endif
46		74
		75	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
49	# endif	81	# endif
50		82
		83	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# 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
53	# endif	105	# endif
54		106
55	#endif	107	#endif
56		108
57	#include <math.h>	109	#include <math.h>
…		…
66	#include <sys/types.h>	118	#include <sys/types.h>
67	#include <time.h>	119	#include <time.h>
68		120
69	#include <signal.h>	121	#include <signal.h>
70		122
71	#ifndef WIN32
72	# include <unistd.h>
73	# include <sys/time.h>
74	# include <sys/wait.h>
75	#endif
76	/**/
77
78	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1
80	#endif
81
82	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1
84	#endif
85
86	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
88	#endif
89
90	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0
92	#endif
93
94	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0
96	#endif
97
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME
109	# define EV_USE_REALTIME 1
110	#endif
111
112	/**/
113
114	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0
117	#endif
118
119	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0
122	#endif
123
124	/**/
125
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
130
131	#ifdef EV_H	123	#ifdef EV_H
132	# include EV_H	124	# include EV_H
133	#else	125	#else
134	# include "ev.h"	126	# include "ev.h"
135	#endif	127	#endif
136		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
137	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
138	# 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
139	# 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
140	#else	235	#else
141	# define expect(expr,value) (expr)	236	# define expect(expr,value) (expr)
		237	# define inline_speed static
142	# define inline static	238	# define inline_size static
		239	# define noinline
143	#endif	240	#endif
144		241
145	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
146	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
147		244
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		247
		248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		249	#define EMPTY2(a,b) /* used to suppress some warnings */
		250
151	typedef struct ev_watcher *W;	251	typedef ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
154		254
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		256
		257	#ifdef _WIN32
157	#include "ev_win32.c"	258	# include "ev_win32.c"
		259	#endif
158		260
159	/*****************************************************************************/	261	/*****************************************************************************/
160		262
161	static void (*syserr_cb)(const char *msg);	263	static void (*syserr_cb)(const char *msg);
162		264
		265	void
163	void ev_set_syserr_cb (void (*cb)(const char *msg))	266	ev_set_syserr_cb (void (*cb)(const char *msg))
164	{	267	{
165	syserr_cb = cb;	268	syserr_cb = cb;
166	}	269	}
167		270
168	static void	271	static void noinline
169	syserr (const char *msg)	272	syserr (const char *msg)
170	{	273	{
171	if (!msg)	274	if (!msg)
172	msg = "(libev) system error";	275	msg = "(libev) system error";
173		276
…		…
178	perror (msg);	281	perror (msg);
179	abort ();	282	abort ();
180	}	283	}
181	}	284	}
182		285
183	static void *(*alloc)(void *ptr, long size);	286	static void *(*alloc)(void *ptr, size_t size) = realloc;
184		287
		288	void
185	void ev_set_allocator (void *(*cb)(void *ptr, long size))	289	ev_set_allocator (void *(*cb)(void *ptr, size_t size))
186	{	290	{
187	alloc = cb;	291	alloc = cb;
188	}	292	}
189		293
190	static void *	294	inline_speed void *
191	ev_realloc (void *ptr, long size)	295	ev_realloc (void *ptr, size_t size)
192	{	296	{
193	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	297	ptr = alloc (ptr, size);
194		298
195	if (!ptr && size)	299	if (!ptr && size)
196	{	300	{
197	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);
198	abort ();	302	abort ();
199	}	303	}
200		304
201	return ptr;	305	return ptr;
202	}	306	}
…		…
209	typedef struct	313	typedef struct
210	{	314	{
211	WL head;	315	WL head;
212	unsigned char events;	316	unsigned char events;
213	unsigned char reify;	317	unsigned char reify;
		318	#if EV_SELECT_IS_WINSOCKET
		319	SOCKET handle;
		320	#endif
214	} ANFD;	321	} ANFD;
215		322
216	typedef struct	323	typedef struct
217	{	324	{
218	W w;	325	W w;
219	int events;	326	int events;
220	} ANPENDING;	327	} ANPENDING;
221		328
		329	typedef struct
		330	{
		331	#if EV_USE_INOTIFY
		332	WL head;
		333	#endif
		334	} ANFS;
		335
222	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
223		337
224	struct ev_loop	338	struct ev_loop
225	{	339	{
		340	ev_tstamp ev_rt_now;
		341	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	342	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	343	#include "ev_vars.h"
228	#undef VAR	344	#undef VAR
229	};	345	};
230	#include "ev_wrap.h"	346	#include "ev_wrap.h"
231		347
232	struct ev_loop default_loop_struct;	348	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	349	struct ev_loop *ev_default_loop_ptr;
234		350
235	#else	351	#else
236		352
		353	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	354	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	355	#include "ev_vars.h"
239	#undef VAR	356	#undef VAR
240		357
241	static int default_loop;	358	static int ev_default_loop_ptr;
242		359
243	#endif	360	#endif
244		361
245	/*****************************************************************************/	362	/*****************************************************************************/
246		363
247	inline ev_tstamp	364	ev_tstamp
248	ev_time (void)	365	ev_time (void)
249	{	366	{
250	#if EV_USE_REALTIME	367	#if EV_USE_REALTIME
251	struct timespec ts;	368	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	369	clock_gettime (CLOCK_REALTIME, &ts);
…		…
256	gettimeofday (&tv, 0);	373	gettimeofday (&tv, 0);
257	return tv.tv_sec + tv.tv_usec * 1e-6;	374	return tv.tv_sec + tv.tv_usec * 1e-6;
258	#endif	375	#endif
259	}	376	}
260		377
261	inline ev_tstamp	378	ev_tstamp inline_size
262	get_clock (void)	379	get_clock (void)
263	{	380	{
264	#if EV_USE_MONOTONIC	381	#if EV_USE_MONOTONIC
265	if (expect_true (have_monotonic))	382	if (expect_true (have_monotonic))
266	{	383	{
…		…
271	#endif	388	#endif
272		389
273	return ev_time ();	390	return ev_time ();
274	}	391	}
275		392
		393	#if EV_MULTIPLICITY
276	ev_tstamp	394	ev_tstamp
277	ev_now (EV_P)	395	ev_now (EV_P)
278	{	396	{
279	return rt_now;	397	return ev_rt_now;
280	}	398	}
		399	#endif
281		400
282	#define array_roundsize(type,n) ((n) | 4 & ~3)	401	#define array_roundsize(type,n) (((n) | 4) & ~3)
283		402
284	#define array_needsize(type,base,cur,cnt,init) \	403	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	404	if (expect_false ((cnt) > cur)) \
286	{ \	405	{ \
287	int newcnt = cur; \	406	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	421	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	422	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
305	}	424	}
306		425
307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
309	#define array_free_microshit(stem) \
310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
311
312	#define array_free(stem, idx) \	426	#define array_free(stem, idx) \
313	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;
314		428
315	/*****************************************************************************/	429	/*****************************************************************************/
316		430
317	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
318	anfds_init (ANFD *base, int count)	460	anfds_init (ANFD *base, int count)
319	{	461	{
320	while (count--)	462	while (count--)
321	{	463	{
322	base->head = 0;	464	base->head = 0;
…		…
325		467
326	++base;	468	++base;
327	}	469	}
328	}	470	}
329		471
330	void	472	void inline_speed
331	ev_feed_event (EV_P_ void *w, int revents)
332	{
333	W w_ = (W)w;
334
335	if (w_->pending)
336	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
338	return;
339	}
340
341	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}
346
347	static void
348	queue_events (EV_P_ W *events, int eventcnt, int type)
349	{
350	int i;
351
352	for (i = 0; i < eventcnt; ++i)
353	ev_feed_event (EV_A_ events [i], type);
354	}
355
356	inline void
357	fd_event (EV_P_ int fd, int revents)	473	fd_event (EV_P_ int fd, int revents)
358	{	474	{
359	ANFD *anfd = anfds + fd;	475	ANFD *anfd = anfds + fd;
360	struct ev_io *w;	476	ev_io *w;
361		477
362	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)
363	{	479	{
364	int ev = w->events & revents;	480	int ev = w->events & revents;
365		481
366	if (ev)	482	if (ev)
367	ev_feed_event (EV_A_ (W)w, ev);	483	ev_feed_event (EV_A_ (W)w, ev);
…		…
372	ev_feed_fd_event (EV_P_ int fd, int revents)	488	ev_feed_fd_event (EV_P_ int fd, int revents)
373	{	489	{
374	fd_event (EV_A_ fd, revents);	490	fd_event (EV_A_ fd, revents);
375	}	491	}
376		492
377	/*****************************************************************************/	493	void inline_size
378
379	static void
380	fd_reify (EV_P)	494	fd_reify (EV_P)
381	{	495	{
382	int i;	496	int i;
383		497
384	for (i = 0; i < fdchangecnt; ++i)	498	for (i = 0; i < fdchangecnt; ++i)
385	{	499	{
386	int fd = fdchanges [i];	500	int fd = fdchanges [i];
387	ANFD *anfd = anfds + fd;	501	ANFD *anfd = anfds + fd;
388	struct ev_io *w;	502	ev_io *w;
389		503
390	int events = 0;	504	int events = 0;
391		505
392	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)
393	events |= w->events;	507	events |= w->events;
394		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
395	anfd->reify = 0;	518	anfd->reify = 0;
396		519
397	method_modify (EV_A_ fd, anfd->events, events);	520	backend_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	521	anfd->events = events;
399	}	522	}
400		523
401	fdchangecnt = 0;	524	fdchangecnt = 0;
402	}	525	}
403		526
404	static void	527	void inline_size
405	fd_change (EV_P_ int fd)	528	fd_change (EV_P_ int fd)
406	{	529	{
407	if (anfds [fd].reify)	530	if (expect_false (anfds [fd].reify))
408	return;	531	return;
409		532
410	anfds [fd].reify = 1;	533	anfds [fd].reify = 1;
411		534
412	++fdchangecnt;	535	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	537	fdchanges [fdchangecnt - 1] = fd;
415	}	538	}
416		539
417	static void	540	void inline_speed
418	fd_kill (EV_P_ int fd)	541	fd_kill (EV_P_ int fd)
419	{	542	{
420	struct ev_io *w;	543	ev_io *w;
421		544
422	while ((w = (struct ev_io *)anfds [fd].head))	545	while ((w = (ev_io *)anfds [fd].head))
423	{	546	{
424	ev_io_stop (EV_A_ w);	547	ev_io_stop (EV_A_ w);
425	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);
426	}	549	}
427	}	550	}
428		551
429	static int	552	int inline_size
430	fd_valid (int fd)	553	fd_valid (int fd)
431	{	554	{
432	#ifdef WIN32	555	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	556	return _get_osfhandle (fd) != -1;
434	#else	557	#else
435	return fcntl (fd, F_GETFD) != -1;	558	return fcntl (fd, F_GETFD) != -1;
436	#endif	559	#endif
437	}	560	}
438		561
439	/* called on EBADF to verify fds */	562	/* called on EBADF to verify fds */
440	static void	563	static void noinline
441	fd_ebadf (EV_P)	564	fd_ebadf (EV_P)
442	{	565	{
443	int fd;	566	int fd;
444		567
445	for (fd = 0; fd < anfdmax; ++fd)	568	for (fd = 0; fd < anfdmax; ++fd)
…		…
447	if (!fd_valid (fd) == -1 && errno == EBADF)	570	if (!fd_valid (fd) == -1 && errno == EBADF)
448	fd_kill (EV_A_ fd);	571	fd_kill (EV_A_ fd);
449	}	572	}
450		573
451	/* 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 */
452	static void	575	static void noinline
453	fd_enomem (EV_P)	576	fd_enomem (EV_P)
454	{	577	{
455	int fd;	578	int fd;
456		579
457	for (fd = anfdmax; fd--; )	580	for (fd = anfdmax; fd--; )
…		…
460	fd_kill (EV_A_ fd);	583	fd_kill (EV_A_ fd);
461	return;	584	return;
462	}	585	}
463	}	586	}
464		587
465	/* 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 */
466	static void	589	static void noinline
467	fd_rearm_all (EV_P)	590	fd_rearm_all (EV_P)
468	{	591	{
469	int fd;	592	int fd;
470		593
471	/* this should be highly optimised to not do anything but set a flag */	594	/* this should be highly optimised to not do anything but set a flag */
…		…
477	}	600	}
478	}	601	}
479		602
480	/*****************************************************************************/	603	/*****************************************************************************/
481		604
482	static void	605	void inline_speed
483	upheap (WT *heap, int k)	606	upheap (WT *heap, int k)
484	{	607	{
485	WT w = heap [k];	608	WT w = heap [k];
486		609
487	while (k && heap [k >> 1]->at > w->at)	610	while (k && heap [k >> 1]->at > w->at)
…		…
494	heap [k] = w;	617	heap [k] = w;
495	((W)heap [k])->active = k + 1;	618	((W)heap [k])->active = k + 1;
496		619
497	}	620	}
498		621
499	static void	622	void inline_speed
500	downheap (WT *heap, int N, int k)	623	downheap (WT *heap, int N, int k)
501	{	624	{
502	WT w = heap [k];	625	WT w = heap [k];
503		626
504	while (k < (N >> 1))	627	while (k < (N >> 1))
…		…
518		641
519	heap [k] = w;	642	heap [k] = w;
520	((W)heap [k])->active = k + 1;	643	((W)heap [k])->active = k + 1;
521	}	644	}
522		645
		646	void inline_size
		647	adjustheap (WT *heap, int N, int k)
		648	{
		649	upheap (heap, k);
		650	downheap (heap, N, k);
		651	}
		652
523	/*****************************************************************************/	653	/*****************************************************************************/
524		654
525	typedef struct	655	typedef struct
526	{	656	{
527	WL head;	657	WL head;
…		…
531	static ANSIG *signals;	661	static ANSIG *signals;
532	static int signalmax;	662	static int signalmax;
533		663
534	static int sigpipe [2];	664	static int sigpipe [2];
535	static sig_atomic_t volatile gotsig;	665	static sig_atomic_t volatile gotsig;
536	static struct ev_io sigev;	666	static ev_io sigev;
537		667
538	static void	668	void inline_size
539	signals_init (ANSIG *base, int count)	669	signals_init (ANSIG *base, int count)
540	{	670	{
541	while (count--)	671	while (count--)
542	{	672	{
543	base->head = 0;	673	base->head = 0;
…		…
548	}	678	}
549		679
550	static void	680	static void
551	sighandler (int signum)	681	sighandler (int signum)
552	{	682	{
553	#if WIN32	683	#if _WIN32
554	signal (signum, sighandler);	684	signal (signum, sighandler);
555	#endif	685	#endif
556		686
557	signals [signum - 1].gotsig = 1;	687	signals [signum - 1].gotsig = 1;
558		688
559	if (!gotsig)	689	if (!gotsig)
560	{	690	{
561	int old_errno = errno;	691	int old_errno = errno;
562	gotsig = 1;	692	gotsig = 1;
563	#ifdef WIN32
564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565	#else
566	write (sigpipe [1], &signum, 1);	693	write (sigpipe [1], &signum, 1);
567	#endif
568	errno = old_errno;	694	errno = old_errno;
569	}	695	}
570	}	696	}
571		697
572	void	698	void noinline
573	ev_feed_signal_event (EV_P_ int signum)	699	ev_feed_signal_event (EV_P_ int signum)
574	{	700	{
575	WL w;	701	WL w;
576		702
577	#if EV_MULTIPLICITY	703	#if EV_MULTIPLICITY
578	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	704	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
579	#endif	705	#endif
580		706
581	--signum;	707	--signum;
582		708
583	if (signum < 0 || signum >= signalmax)	709	if (signum < 0 || signum >= signalmax)
…		…
588	for (w = signals [signum].head; w; w = w->next)	714	for (w = signals [signum].head; w; w = w->next)
589	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	715	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
590	}	716	}
591		717
592	static void	718	static void
593	sigcb (EV_P_ struct ev_io *iow, int revents)	719	sigcb (EV_P_ ev_io *iow, int revents)
594	{	720	{
595	int signum;	721	int signum;
596		722
597	#ifdef WIN32
598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599	#else
600	read (sigpipe [0], &revents, 1);	723	read (sigpipe [0], &revents, 1);
601	#endif
602	gotsig = 0;	724	gotsig = 0;
603		725
604	for (signum = signalmax; signum--; )	726	for (signum = signalmax; signum--; )
605	if (signals [signum].gotsig)	727	if (signals [signum].gotsig)
606	ev_feed_signal_event (EV_A_ signum + 1);	728	ev_feed_signal_event (EV_A_ signum + 1);
607	}	729	}
608		730
609	static void	731	void inline_size
		732	fd_intern (int fd)
		733	{
		734	#ifdef _WIN32
		735	int arg = 1;
		736	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		737	#else
		738	fcntl (fd, F_SETFD, FD_CLOEXEC);
		739	fcntl (fd, F_SETFL, O_NONBLOCK);
		740	#endif
		741	}
		742
		743	static void noinline
610	siginit (EV_P)	744	siginit (EV_P)
611	{	745	{
612	#ifndef WIN32	746	fd_intern (sigpipe [0]);
613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	747	fd_intern (sigpipe [1]);
614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
615
616	/* rather than sort out wether we really need nb, set it */
617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
619	#endif
620		748
621	ev_io_set (&sigev, sigpipe [0], EV_READ);	749	ev_io_set (&sigev, sigpipe [0], EV_READ);
622	ev_io_start (EV_A_ &sigev);	750	ev_io_start (EV_A_ &sigev);
623	ev_unref (EV_A); /* child watcher should not keep loop alive */	751	ev_unref (EV_A); /* child watcher should not keep loop alive */
624	}	752	}
625		753
626	/*****************************************************************************/	754	/*****************************************************************************/
627		755
628	static struct ev_child *childs [PID_HASHSIZE];	756	static ev_child *childs [EV_PID_HASHSIZE];
629		757
630	#ifndef WIN32	758	#ifndef _WIN32
631		759
632	static struct ev_signal childev;	760	static ev_signal childev;
633		761
634	#ifndef WCONTINUED	762	void inline_speed
635	# define WCONTINUED 0
636	#endif
637
638	static void
639	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	763	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
640	{	764	{
641	struct ev_child *w;	765	ev_child *w;
642		766
643	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)	767	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
644	if (w->pid == pid || !w->pid)	768	if (w->pid == pid || !w->pid)
645	{	769	{
646	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	770	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
647	w->rpid = pid;	771	w->rpid = pid;
648	w->rstatus = status;	772	w->rstatus = status;
649	ev_feed_event (EV_A_ (W)w, EV_CHILD);	773	ev_feed_event (EV_A_ (W)w, EV_CHILD);
650	}	774	}
651	}	775	}
652		776
		777	#ifndef WCONTINUED
		778	# define WCONTINUED 0
		779	#endif
		780
653	static void	781	static void
654	childcb (EV_P_ struct ev_signal *sw, int revents)	782	childcb (EV_P_ ev_signal *sw, int revents)
655	{	783	{
656	int pid, status;	784	int pid, status;
657		785
		786	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
658	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	787	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
659	{	788	if (!WCONTINUED
		789	|| errno != EINVAL
		790	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		791	return;
		792
660	/* make sure we are called again until all childs have been reaped */	793	/* make sure we are called again until all childs have been reaped */
		794	/* we need to do it this way so that the callback gets called before we continue */
661	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	795	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
662		796
663	child_reap (EV_A_ sw, pid, pid, status);	797	child_reap (EV_A_ sw, pid, pid, status);
		798	if (EV_PID_HASHSIZE > 1)
664	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	799	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
665	}
666	}	800	}
667		801
668	#endif	802	#endif
669		803
670	/*****************************************************************************/	804	/*****************************************************************************/
671		805
		806	#if EV_USE_PORT
		807	# include "ev_port.c"
		808	#endif
672	#if EV_USE_KQUEUE	809	#if EV_USE_KQUEUE
673	# include "ev_kqueue.c"	810	# include "ev_kqueue.c"
674	#endif	811	#endif
675	#if EV_USE_EPOLL	812	#if EV_USE_EPOLL
676	# include "ev_epoll.c"	813	# include "ev_epoll.c"
…		…
693	{	830	{
694	return EV_VERSION_MINOR;	831	return EV_VERSION_MINOR;
695	}	832	}
696		833
697	/* return true if we are running with elevated privileges and should ignore env variables */	834	/* return true if we are running with elevated privileges and should ignore env variables */
698	static int	835	int inline_size
699	enable_secure (void)	836	enable_secure (void)
700	{	837	{
701	#ifdef WIN32	838	#ifdef _WIN32
702	return 0;	839	return 0;
703	#else	840	#else
704	return getuid () != geteuid ()	841	return getuid () != geteuid ()
705	|| getgid () != getegid ();	842	|| getgid () != getegid ();
706	#endif	843	#endif
707	}	844	}
708		845
709	int	846	unsigned int
710	ev_method (EV_P)	847	ev_supported_backends (void)
711	{	848	{
712	return method;	849	unsigned int flags = 0;
713	}
714		850
715	static void	851	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
716	loop_init (EV_P_ int methods)	852	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		853	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		854	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		855	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		856
		857	return flags;
		858	}
		859
		860	unsigned int
		861	ev_recommended_backends (void)
717	{	862	{
718	if (!method)	863	unsigned int flags = ev_supported_backends ();
		864
		865	#ifndef __NetBSD__
		866	/* kqueue is borked on everything but netbsd apparently */
		867	/* it usually doesn't work correctly on anything but sockets and pipes */
		868	flags &= ~EVBACKEND_KQUEUE;
		869	#endif
		870	#ifdef __APPLE__
		871	// flags &= ~EVBACKEND_KQUEUE; for documentation
		872	flags &= ~EVBACKEND_POLL;
		873	#endif
		874
		875	return flags;
		876	}
		877
		878	unsigned int
		879	ev_embeddable_backends (void)
		880	{
		881	return EVBACKEND_EPOLL
		882	| EVBACKEND_KQUEUE
		883	| EVBACKEND_PORT;
		884	}
		885
		886	unsigned int
		887	ev_backend (EV_P)
		888	{
		889	return backend;
		890	}
		891
		892	static void noinline
		893	loop_init (EV_P_ unsigned int flags)
		894	{
		895	if (!backend)
719	{	896	{
720	#if EV_USE_MONOTONIC	897	#if EV_USE_MONOTONIC
721	{	898	{
722	struct timespec ts;	899	struct timespec ts;
723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	900	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724	have_monotonic = 1;	901	have_monotonic = 1;
725	}	902	}
726	#endif	903	#endif
727		904
728	rt_now = ev_time ();	905	ev_rt_now = ev_time ();
729	mn_now = get_clock ();	906	mn_now = get_clock ();
730	now_floor = mn_now;	907	now_floor = mn_now;
731	rtmn_diff = rt_now - mn_now;	908	rtmn_diff = ev_rt_now - mn_now;
732		909
733	if (methods == EVMETHOD_AUTO)	910	if (!(flags & EVFLAG_NOENV)
734	if (!enable_secure () && getenv ("LIBEV_METHODS"))	911	&& !enable_secure ()
		912	&& getenv ("LIBEV_FLAGS"))
735	methods = atoi (getenv ("LIBEV_METHODS"));	913	flags = atoi (getenv ("LIBEV_FLAGS"));
736	else
737	methods = EVMETHOD_ANY;
738		914
739	method = 0;	915	if (!(flags & 0x0000ffffUL))
		916	flags |= ev_recommended_backends ();
		917
		918	backend = 0;
		919	backend_fd = -1;
740	#if EV_USE_WIN32	920	#if EV_USE_INOTIFY
741	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	921	fs_fd = -2;
		922	#endif
		923
		924	#if EV_USE_PORT
		925	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
742	#endif	926	#endif
743	#if EV_USE_KQUEUE	927	#if EV_USE_KQUEUE
744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	928	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
745	#endif	929	#endif
746	#if EV_USE_EPOLL	930	#if EV_USE_EPOLL
747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	931	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
748	#endif	932	#endif
749	#if EV_USE_POLL	933	#if EV_USE_POLL
750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	934	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
751	#endif	935	#endif
752	#if EV_USE_SELECT	936	#if EV_USE_SELECT
753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	937	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
754	#endif	938	#endif
755		939
756	ev_watcher_init (&sigev, sigcb);	940	ev_init (&sigev, sigcb);
757	ev_set_priority (&sigev, EV_MAXPRI);	941	ev_set_priority (&sigev, EV_MAXPRI);
758	}	942	}
759	}	943	}
760		944
761	void	945	static void noinline
762	loop_destroy (EV_P)	946	loop_destroy (EV_P)
763	{	947	{
764	int i;	948	int i;
765		949
766	#if EV_USE_WIN32	950	#if EV_USE_INOTIFY
767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	951	if (fs_fd >= 0)
		952	close (fs_fd);
		953	#endif
		954
		955	if (backend_fd >= 0)
		956	close (backend_fd);
		957
		958	#if EV_USE_PORT
		959	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
768	#endif	960	#endif
769	#if EV_USE_KQUEUE	961	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	962	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
771	#endif	963	#endif
772	#if EV_USE_EPOLL	964	#if EV_USE_EPOLL
773	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	965	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
774	#endif	966	#endif
775	#if EV_USE_POLL	967	#if EV_USE_POLL
776	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	968	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
777	#endif	969	#endif
778	#if EV_USE_SELECT	970	#if EV_USE_SELECT
779	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
780	#endif	972	#endif
781		973
782	for (i = NUMPRI; i--; )	974	for (i = NUMPRI; i--; )
783	array_free (pending, [i]);	975	array_free (pending, [i]);
784		976
785	/* have to use the microsoft-never-gets-it-right macro */	977	/* have to use the microsoft-never-gets-it-right macro */
786	array_free_microshit (fdchange);	978	array_free (fdchange, EMPTY0);
787	array_free_microshit (timer);	979	array_free (timer, EMPTY0);
788	array_free_microshit (periodic);	980	#if EV_PERIODIC_ENABLE
789	array_free_microshit (idle);	981	array_free (periodic, EMPTY0);
790	array_free_microshit (prepare);	982	#endif
791	array_free_microshit (check);	983	array_free (idle, EMPTY0);
		984	array_free (prepare, EMPTY0);
		985	array_free (check, EMPTY0);
792		986
793	method = 0;	987	backend = 0;
794	}	988	}
795		989
796	static void	990	void inline_size
797	loop_fork (EV_P)	991	loop_fork (EV_P)
798	{	992	{
		993	#if EV_USE_PORT
		994	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		995	#endif
		996	#if EV_USE_KQUEUE
		997	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		998	#endif
799	#if EV_USE_EPOLL	999	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1000	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
801	#endif
802	#if EV_USE_KQUEUE
803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
804	#endif	1001	#endif
805		1002
806	if (ev_is_active (&sigev))	1003	if (ev_is_active (&sigev))
807	{	1004	{
808	/* default loop */	1005	/* default loop */
…		…
821	postfork = 0;	1018	postfork = 0;
822	}	1019	}
823		1020
824	#if EV_MULTIPLICITY	1021	#if EV_MULTIPLICITY
825	struct ev_loop *	1022	struct ev_loop *
826	ev_loop_new (int methods)	1023	ev_loop_new (unsigned int flags)
827	{	1024	{
828	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1025	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
829		1026
830	memset (loop, 0, sizeof (struct ev_loop));	1027	memset (loop, 0, sizeof (struct ev_loop));
831		1028
832	loop_init (EV_A_ methods);	1029	loop_init (EV_A_ flags);
833		1030
834	if (ev_method (EV_A))	1031	if (ev_backend (EV_A))
835	return loop;	1032	return loop;
836		1033
837	return 0;	1034	return 0;
838	}	1035	}
839		1036
…		…
852		1049
853	#endif	1050	#endif
854		1051
855	#if EV_MULTIPLICITY	1052	#if EV_MULTIPLICITY
856	struct ev_loop *	1053	struct ev_loop *
		1054	ev_default_loop_init (unsigned int flags)
857	#else	1055	#else
858	int	1056	int
		1057	ev_default_loop (unsigned int flags)
859	#endif	1058	#endif
860	ev_default_loop (int methods)
861	{	1059	{
862	if (sigpipe [0] == sigpipe [1])	1060	if (sigpipe [0] == sigpipe [1])
863	if (pipe (sigpipe))	1061	if (pipe (sigpipe))
864	return 0;	1062	return 0;
865		1063
866	if (!default_loop)	1064	if (!ev_default_loop_ptr)
867	{	1065	{
868	#if EV_MULTIPLICITY	1066	#if EV_MULTIPLICITY
869	struct ev_loop *loop = default_loop = &default_loop_struct;	1067	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870	#else	1068	#else
871	default_loop = 1;	1069	ev_default_loop_ptr = 1;
872	#endif	1070	#endif
873		1071
874	loop_init (EV_A_ methods);	1072	loop_init (EV_A_ flags);
875		1073
876	if (ev_method (EV_A))	1074	if (ev_backend (EV_A))
877	{	1075	{
878	siginit (EV_A);	1076	siginit (EV_A);
879		1077
880	#ifndef WIN32	1078	#ifndef _WIN32
881	ev_signal_init (&childev, childcb, SIGCHLD);	1079	ev_signal_init (&childev, childcb, SIGCHLD);
882	ev_set_priority (&childev, EV_MAXPRI);	1080	ev_set_priority (&childev, EV_MAXPRI);
883	ev_signal_start (EV_A_ &childev);	1081	ev_signal_start (EV_A_ &childev);
884	ev_unref (EV_A); /* child watcher should not keep loop alive */	1082	ev_unref (EV_A); /* child watcher should not keep loop alive */
885	#endif	1083	#endif
886	}	1084	}
887	else	1085	else
888	default_loop = 0;	1086	ev_default_loop_ptr = 0;
889	}	1087	}
890		1088
891	return default_loop;	1089	return ev_default_loop_ptr;
892	}	1090	}
893		1091
894	void	1092	void
895	ev_default_destroy (void)	1093	ev_default_destroy (void)
896	{	1094	{
897	#if EV_MULTIPLICITY	1095	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop;	1096	struct ev_loop *loop = ev_default_loop_ptr;
899	#endif	1097	#endif
900		1098
901	#ifndef WIN32	1099	#ifndef _WIN32
902	ev_ref (EV_A); /* child watcher */	1100	ev_ref (EV_A); /* child watcher */
903	ev_signal_stop (EV_A_ &childev);	1101	ev_signal_stop (EV_A_ &childev);
904	#endif	1102	#endif
905		1103
906	ev_ref (EV_A); /* signal watcher */	1104	ev_ref (EV_A); /* signal watcher */
…		…
914		1112
915	void	1113	void
916	ev_default_fork (void)	1114	ev_default_fork (void)
917	{	1115	{
918	#if EV_MULTIPLICITY	1116	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1117	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1118	#endif
921		1119
922	if (method)	1120	if (backend)
923	postfork = 1;	1121	postfork = 1;
924	}	1122	}
925		1123
926	/*****************************************************************************/	1124	/*****************************************************************************/
927		1125
928	static int	1126	int inline_size
929	any_pending (EV_P)	1127	any_pending (EV_P)
930	{	1128	{
931	int pri;	1129	int pri;
932		1130
933	for (pri = NUMPRI; pri--; )	1131	for (pri = NUMPRI; pri--; )
…		…
935	return 1;	1133	return 1;
936		1134
937	return 0;	1135	return 0;
938	}	1136	}
939		1137
940	static void	1138	void inline_speed
941	call_pending (EV_P)	1139	call_pending (EV_P)
942	{	1140	{
943	int pri;	1141	int pri;
944		1142
945	for (pri = NUMPRI; pri--; )	1143	for (pri = NUMPRI; pri--; )
946	while (pendingcnt [pri])	1144	while (pendingcnt [pri])
947	{	1145	{
948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1146	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949		1147
950	if (p->w)	1148	if (expect_true (p->w))
951	{	1149	{
		1150	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1151
952	p->w->pending = 0;	1152	p->w->pending = 0;
953	p->w->cb (EV_A_ p->w, p->events);	1153	EV_CB_INVOKE (p->w, p->events);
954	}	1154	}
955	}	1155	}
956	}	1156	}
957		1157
958	static void	1158	void inline_size
959	timers_reify (EV_P)	1159	timers_reify (EV_P)
960	{	1160	{
961	while (timercnt && ((WT)timers [0])->at <= mn_now)	1161	while (timercnt && ((WT)timers [0])->at <= mn_now)
962	{	1162	{
963	struct ev_timer *w = timers [0];	1163	ev_timer *w = timers [0];
964		1164
965	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1165	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
966		1166
967	/* first reschedule or stop timer */	1167	/* first reschedule or stop timer */
968	if (w->repeat)	1168	if (w->repeat)
969	{	1169	{
970	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1170	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1171
971	((WT)w)->at = mn_now + w->repeat;	1172	((WT)w)->at += w->repeat;
		1173	if (((WT)w)->at < mn_now)
		1174	((WT)w)->at = mn_now;
		1175
972	downheap ((WT *)timers, timercnt, 0);	1176	downheap ((WT *)timers, timercnt, 0);
973	}	1177	}
974	else	1178	else
975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1179	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976		1180
977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1181	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978	}	1182	}
979	}	1183	}
980		1184
981	static void	1185	#if EV_PERIODIC_ENABLE
		1186	void inline_size
982	periodics_reify (EV_P)	1187	periodics_reify (EV_P)
983	{	1188	{
984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1189	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985	{	1190	{
986	struct ev_periodic *w = periodics [0];	1191	ev_periodic *w = periodics [0];
987		1192
988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1193	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
989		1194
990	/* first reschedule or stop timer */	1195	/* first reschedule or stop timer */
991	if (w->reschedule_cb)	1196	if (w->reschedule_cb)
992	{	1197	{
993	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1198	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
994
995	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1199	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996	downheap ((WT *)periodics, periodiccnt, 0);	1200	downheap ((WT *)periodics, periodiccnt, 0);
997	}	1201	}
998	else if (w->interval)	1202	else if (w->interval)
999	{	1203	{
1000	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1204	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1001	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1205	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1002	downheap ((WT *)periodics, periodiccnt, 0);	1206	downheap ((WT *)periodics, periodiccnt, 0);
1003	}	1207	}
1004	else	1208	else
1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1209	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006		1210
1007	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1211	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1008	}	1212	}
1009	}	1213	}
1010		1214
1011	static void	1215	static void noinline
1012	periodics_reschedule (EV_P)	1216	periodics_reschedule (EV_P)
1013	{	1217	{
1014	int i;	1218	int i;
1015		1219
1016	/* adjust periodics after time jump */	1220	/* adjust periodics after time jump */
1017	for (i = 0; i < periodiccnt; ++i)	1221	for (i = 0; i < periodiccnt; ++i)
1018	{	1222	{
1019	struct ev_periodic *w = periodics [i];	1223	ev_periodic *w = periodics [i];
1020		1224
1021	if (w->reschedule_cb)	1225	if (w->reschedule_cb)
1022	((WT)w)->at = w->reschedule_cb (w, rt_now);	1226	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023	else if (w->interval)	1227	else if (w->interval)
1024	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1228	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025	}	1229	}
1026		1230
1027	/* now rebuild the heap */	1231	/* now rebuild the heap */
1028	for (i = periodiccnt >> 1; i--; )	1232	for (i = periodiccnt >> 1; i--; )
1029	downheap ((WT *)periodics, periodiccnt, i);	1233	downheap ((WT *)periodics, periodiccnt, i);
1030	}	1234	}
		1235	#endif
1031		1236
1032	inline int	1237	int inline_size
1033	time_update_monotonic (EV_P)	1238	time_update_monotonic (EV_P)
1034	{	1239	{
1035	mn_now = get_clock ();	1240	mn_now = get_clock ();
1036		1241
1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1242	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038	{	1243	{
1039	rt_now = rtmn_diff + mn_now;	1244	ev_rt_now = rtmn_diff + mn_now;
1040	return 0;	1245	return 0;
1041	}	1246	}
1042	else	1247	else
1043	{	1248	{
1044	now_floor = mn_now;	1249	now_floor = mn_now;
1045	rt_now = ev_time ();	1250	ev_rt_now = ev_time ();
1046	return 1;	1251	return 1;
1047	}	1252	}
1048	}	1253	}
1049		1254
1050	static void	1255	void inline_size
1051	time_update (EV_P)	1256	time_update (EV_P)
1052	{	1257	{
1053	int i;	1258	int i;
1054		1259
1055	#if EV_USE_MONOTONIC	1260	#if EV_USE_MONOTONIC
…		…
1057	{	1262	{
1058	if (time_update_monotonic (EV_A))	1263	if (time_update_monotonic (EV_A))
1059	{	1264	{
1060	ev_tstamp odiff = rtmn_diff;	1265	ev_tstamp odiff = rtmn_diff;
1061		1266
1062	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1267	/* loop a few times, before making important decisions.
		1268	* on the choice of "4": one iteration isn't enough,
		1269	* in case we get preempted during the calls to
		1270	* ev_time and get_clock. a second call is almost guarenteed
		1271	* to succeed in that case, though. and looping a few more times
		1272	* doesn't hurt either as we only do this on time-jumps or
		1273	* in the unlikely event of getting preempted here.
		1274	*/
		1275	for (i = 4; --i; )
1063	{	1276	{
1064	rtmn_diff = rt_now - mn_now;	1277	rtmn_diff = ev_rt_now - mn_now;
1065		1278
1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1279	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067	return; /* all is well */	1280	return; /* all is well */
1068		1281
1069	rt_now = ev_time ();	1282	ev_rt_now = ev_time ();
1070	mn_now = get_clock ();	1283	mn_now = get_clock ();
1071	now_floor = mn_now;	1284	now_floor = mn_now;
1072	}	1285	}
1073		1286
		1287	# if EV_PERIODIC_ENABLE
1074	periodics_reschedule (EV_A);	1288	periodics_reschedule (EV_A);
		1289	# endif
1075	/* no timer adjustment, as the monotonic clock doesn't jump */	1290	/* no timer adjustment, as the monotonic clock doesn't jump */
1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1291	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1077	}	1292	}
1078	}	1293	}
1079	else	1294	else
1080	#endif	1295	#endif
1081	{	1296	{
1082	rt_now = ev_time ();	1297	ev_rt_now = ev_time ();
1083		1298
1084	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1299	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1085	{	1300	{
		1301	#if EV_PERIODIC_ENABLE
1086	periodics_reschedule (EV_A);	1302	periodics_reschedule (EV_A);
		1303	#endif
1087		1304
1088	/* adjust timers. this is easy, as the offset is the same for all */	1305	/* adjust timers. this is easy, as the offset is the same for all */
1089	for (i = 0; i < timercnt; ++i)	1306	for (i = 0; i < timercnt; ++i)
1090	((WT)timers [i])->at += rt_now - mn_now;	1307	((WT)timers [i])->at += ev_rt_now - mn_now;
1091	}	1308	}
1092		1309
1093	mn_now = rt_now;	1310	mn_now = ev_rt_now;
1094	}	1311	}
1095	}	1312	}
1096		1313
1097	void	1314	void
1098	ev_ref (EV_P)	1315	ev_ref (EV_P)
…		…
1109	static int loop_done;	1326	static int loop_done;
1110		1327
1111	void	1328	void
1112	ev_loop (EV_P_ int flags)	1329	ev_loop (EV_P_ int flags)
1113	{	1330	{
1114	double block;
1115	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1331	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1332	? EVUNLOOP_ONE
		1333	: EVUNLOOP_CANCEL;
1116		1334
1117	do	1335	while (activecnt)
1118	{	1336	{
		1337	/* we might have forked, so reify kernel state if necessary */
		1338	#if EV_FORK_ENABLE
		1339	if (expect_false (postfork))
		1340	if (forkcnt)
		1341	{
		1342	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1343	call_pending (EV_A);
		1344	}
		1345	#endif
		1346
1119	/* queue check watchers (and execute them) */	1347	/* queue check watchers (and execute them) */
1120	if (expect_false (preparecnt))	1348	if (expect_false (preparecnt))
1121	{	1349	{
1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1350	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1123	call_pending (EV_A);	1351	call_pending (EV_A);
…		…
1129		1357
1130	/* update fd-related kernel structures */	1358	/* update fd-related kernel structures */
1131	fd_reify (EV_A);	1359	fd_reify (EV_A);
1132		1360
1133	/* calculate blocking time */	1361	/* calculate blocking time */
		1362	{
		1363	double block;
1134		1364
1135	/* we only need this for !monotonic clock or timers, but as we basically	1365	if (flags & EVLOOP_NONBLOCK || idlecnt)
1136	always have timers, we just calculate it always */	1366	block = 0.; /* do not block at all */
		1367	else
		1368	{
		1369	/* update time to cancel out callback processing overhead */
1137	#if EV_USE_MONOTONIC	1370	#if EV_USE_MONOTONIC
1138	if (expect_true (have_monotonic))	1371	if (expect_true (have_monotonic))
1139	time_update_monotonic (EV_A);	1372	time_update_monotonic (EV_A);
1140	else	1373	else
1141	#endif	1374	#endif
1142	{	1375	{
1143	rt_now = ev_time ();	1376	ev_rt_now = ev_time ();
1144	mn_now = rt_now;	1377	mn_now = ev_rt_now;
1145	}	1378	}
1146		1379
1147	if (flags & EVLOOP_NONBLOCK || idlecnt)
1148	block = 0.;
1149	else
1150	{
1151	block = MAX_BLOCKTIME;	1380	block = MAX_BLOCKTIME;
1152		1381
1153	if (timercnt)	1382	if (timercnt)
1154	{	1383	{
1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1384	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1156	if (block > to) block = to;	1385	if (block > to) block = to;
1157	}	1386	}
1158		1387
		1388	#if EV_PERIODIC_ENABLE
1159	if (periodiccnt)	1389	if (periodiccnt)
1160	{	1390	{
1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1391	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1162	if (block > to) block = to;	1392	if (block > to) block = to;
1163	}	1393	}
		1394	#endif
1164		1395
1165	if (block < 0.) block = 0.;	1396	if (expect_false (block < 0.)) block = 0.;
1166	}	1397	}
1167		1398
1168	method_poll (EV_A_ block);	1399	backend_poll (EV_A_ block);
		1400	}
1169		1401
1170	/* update rt_now, do magic */	1402	/* update ev_rt_now, do magic */
1171	time_update (EV_A);	1403	time_update (EV_A);
1172		1404
1173	/* queue pending timers and reschedule them */	1405	/* queue pending timers and reschedule them */
1174	timers_reify (EV_A); /* relative timers called last */	1406	timers_reify (EV_A); /* relative timers called last */
		1407	#if EV_PERIODIC_ENABLE
1175	periodics_reify (EV_A); /* absolute timers called first */	1408	periodics_reify (EV_A); /* absolute timers called first */
		1409	#endif
1176		1410
1177	/* queue idle watchers unless io or timers are pending */	1411	/* queue idle watchers unless other events are pending */
1178	if (idlecnt && !any_pending (EV_A))	1412	if (idlecnt && !any_pending (EV_A))
1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1413	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1180		1414
1181	/* queue check watchers, to be executed first */	1415	/* queue check watchers, to be executed first */
1182	if (checkcnt)	1416	if (expect_false (checkcnt))
1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1417	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184		1418
1185	call_pending (EV_A);	1419	call_pending (EV_A);
1186	}
1187	while (activecnt && !loop_done);
1188		1420
1189	if (loop_done != 2)	1421	if (expect_false (loop_done))
1190	loop_done = 0;	1422	break;
		1423	}
		1424
		1425	if (loop_done == EVUNLOOP_ONE)
		1426	loop_done = EVUNLOOP_CANCEL;
1191	}	1427	}
1192		1428
1193	void	1429	void
1194	ev_unloop (EV_P_ int how)	1430	ev_unloop (EV_P_ int how)
1195	{	1431	{
1196	loop_done = how;	1432	loop_done = how;
1197	}	1433	}
1198		1434
1199	/*****************************************************************************/	1435	/*****************************************************************************/
1200		1436
1201	inline void	1437	void inline_size
1202	wlist_add (WL *head, WL elem)	1438	wlist_add (WL *head, WL elem)
1203	{	1439	{
1204	elem->next = *head;	1440	elem->next = *head;
1205	*head = elem;	1441	*head = elem;
1206	}	1442	}
1207		1443
1208	inline void	1444	void inline_size
1209	wlist_del (WL *head, WL elem)	1445	wlist_del (WL *head, WL elem)
1210	{	1446	{
1211	while (*head)	1447	while (*head)
1212	{	1448	{
1213	if (*head == elem)	1449	if (*head == elem)
…		…
1218		1454
1219	head = &(*head)->next;	1455	head = &(*head)->next;
1220	}	1456	}
1221	}	1457	}
1222		1458
1223	inline void	1459	void inline_speed
1224	ev_clear_pending (EV_P_ W w)	1460	ev_clear_pending (EV_P_ W w)
1225	{	1461	{
1226	if (w->pending)	1462	if (w->pending)
1227	{	1463	{
1228	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1464	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1229	w->pending = 0;	1465	w->pending = 0;
1230	}	1466	}
1231	}	1467	}
1232		1468
1233	inline void	1469	void inline_speed
1234	ev_start (EV_P_ W w, int active)	1470	ev_start (EV_P_ W w, int active)
1235	{	1471	{
1236	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1472	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1237	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1473	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1238		1474
1239	w->active = active;	1475	w->active = active;
1240	ev_ref (EV_A);	1476	ev_ref (EV_A);
1241	}	1477	}
1242		1478
1243	inline void	1479	void inline_size
1244	ev_stop (EV_P_ W w)	1480	ev_stop (EV_P_ W w)
1245	{	1481	{
1246	ev_unref (EV_A);	1482	ev_unref (EV_A);
1247	w->active = 0;	1483	w->active = 0;
1248	}	1484	}
1249		1485
1250	/*****************************************************************************/	1486	/*****************************************************************************/
1251		1487
1252	void	1488	void
1253	ev_io_start (EV_P_ struct ev_io *w)	1489	ev_io_start (EV_P_ ev_io *w)
1254	{	1490	{
1255	int fd = w->fd;	1491	int fd = w->fd;
1256		1492
1257	if (ev_is_active (w))	1493	if (expect_false (ev_is_active (w)))
1258	return;	1494	return;
1259		1495
1260	assert (("ev_io_start called with negative fd", fd >= 0));	1496	assert (("ev_io_start called with negative fd", fd >= 0));
1261		1497
1262	ev_start (EV_A_ (W)w, 1);	1498	ev_start (EV_A_ (W)w, 1);
…		…
1265		1501
1266	fd_change (EV_A_ fd);	1502	fd_change (EV_A_ fd);
1267	}	1503	}
1268		1504
1269	void	1505	void
1270	ev_io_stop (EV_P_ struct ev_io *w)	1506	ev_io_stop (EV_P_ ev_io *w)
1271	{	1507	{
1272	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1273	if (!ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1274	return;	1510	return;
		1511
		1512	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275		1513
1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1514	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277	ev_stop (EV_A_ (W)w);	1515	ev_stop (EV_A_ (W)w);
1278		1516
1279	fd_change (EV_A_ w->fd);	1517	fd_change (EV_A_ w->fd);
1280	}	1518	}
1281		1519
1282	void	1520	void
1283	ev_timer_start (EV_P_ struct ev_timer *w)	1521	ev_timer_start (EV_P_ ev_timer *w)
1284	{	1522	{
1285	if (ev_is_active (w))	1523	if (expect_false (ev_is_active (w)))
1286	return;	1524	return;
1287		1525
1288	((WT)w)->at += mn_now;	1526	((WT)w)->at += mn_now;
1289		1527
1290	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1528	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1291		1529
1292	ev_start (EV_A_ (W)w, ++timercnt);	1530	ev_start (EV_A_ (W)w, ++timercnt);
1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1531	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1294	timers [timercnt - 1] = w;	1532	timers [timercnt - 1] = w;
1295	upheap ((WT *)timers, timercnt - 1);	1533	upheap ((WT *)timers, timercnt - 1);
1296		1534
		1535	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
		1536	}
		1537
		1538	void
		1539	ev_timer_stop (EV_P_ ev_timer *w)
		1540	{
		1541	ev_clear_pending (EV_A_ (W)w);
		1542	if (expect_false (!ev_is_active (w)))
		1543	return;
		1544
1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1545	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298	}
1299		1546
1300	void	1547	{
1301	ev_timer_stop (EV_P_ struct ev_timer *w)	1548	int active = ((W)w)->active;
1302	{
1303	ev_clear_pending (EV_A_ (W)w);
1304	if (!ev_is_active (w))
1305	return;
1306		1549
1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1550	if (expect_true (--active < --timercnt))
1308
1309	if (((W)w)->active < timercnt--)
1310	{	1551	{
1311	timers [((W)w)->active - 1] = timers [timercnt];	1552	timers [active] = timers [timercnt];
1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1553	adjustheap ((WT *)timers, timercnt, active);
1313	}	1554	}
		1555	}
1314		1556
1315	((WT)w)->at = w->repeat;	1557	((WT)w)->at -= mn_now;
1316		1558
1317	ev_stop (EV_A_ (W)w);	1559	ev_stop (EV_A_ (W)w);
1318	}	1560	}
1319		1561
1320	void	1562	void
1321	ev_timer_again (EV_P_ struct ev_timer *w)	1563	ev_timer_again (EV_P_ ev_timer *w)
1322	{	1564	{
1323	if (ev_is_active (w))	1565	if (ev_is_active (w))
1324	{	1566	{
1325	if (w->repeat)	1567	if (w->repeat)
1326	{	1568	{
1327	((WT)w)->at = mn_now + w->repeat;	1569	((WT)w)->at = mn_now + w->repeat;
1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1570	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329	}	1571	}
1330	else	1572	else
1331	ev_timer_stop (EV_A_ w);	1573	ev_timer_stop (EV_A_ w);
1332	}	1574	}
1333	else if (w->repeat)	1575	else if (w->repeat)
		1576	{
		1577	w->at = w->repeat;
1334	ev_timer_start (EV_A_ w);	1578	ev_timer_start (EV_A_ w);
		1579	}
1335	}	1580	}
1336		1581
		1582	#if EV_PERIODIC_ENABLE
1337	void	1583	void
1338	ev_periodic_start (EV_P_ struct ev_periodic *w)	1584	ev_periodic_start (EV_P_ ev_periodic *w)
1339	{	1585	{
1340	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1341	return;	1587	return;
1342		1588
1343	if (w->reschedule_cb)	1589	if (w->reschedule_cb)
1344	((WT)w)->at = w->reschedule_cb (w, rt_now);	1590	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345	else if (w->interval)	1591	else if (w->interval)
1346	{	1592	{
1347	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1593	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1348	/* this formula differs from the one in periodic_reify because we do not always round up */	1594	/* this formula differs from the one in periodic_reify because we do not always round up */
1349	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1595	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1350	}	1596	}
1351		1597
1352	ev_start (EV_A_ (W)w, ++periodiccnt);	1598	ev_start (EV_A_ (W)w, ++periodiccnt);
1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1599	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354	periodics [periodiccnt - 1] = w;	1600	periodics [periodiccnt - 1] = w;
1355	upheap ((WT *)periodics, periodiccnt - 1);	1601	upheap ((WT *)periodics, periodiccnt - 1);
1356		1602
		1603	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
		1604	}
		1605
		1606	void
		1607	ev_periodic_stop (EV_P_ ev_periodic *w)
		1608	{
		1609	ev_clear_pending (EV_A_ (W)w);
		1610	if (expect_false (!ev_is_active (w)))
		1611	return;
		1612
1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1613	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358	}
1359		1614
1360	void	1615	{
1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1616	int active = ((W)w)->active;
1362	{
1363	ev_clear_pending (EV_A_ (W)w);
1364	if (!ev_is_active (w))
1365	return;
1366		1617
1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1618	if (expect_true (--active < --periodiccnt))
1368
1369	if (((W)w)->active < periodiccnt--)
1370	{	1619	{
1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1620	periodics [active] = periodics [periodiccnt];
1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1621	adjustheap ((WT *)periodics, periodiccnt, active);
1373	}	1622	}
		1623	}
1374		1624
1375	ev_stop (EV_A_ (W)w);	1625	ev_stop (EV_A_ (W)w);
1376	}	1626	}
1377		1627
1378	void	1628	void
1379	ev_periodic_again (EV_P_ struct ev_periodic *w)	1629	ev_periodic_again (EV_P_ ev_periodic *w)
1380	{	1630	{
		1631	/* TODO: use adjustheap and recalculation */
1381	ev_periodic_stop (EV_A_ w);	1632	ev_periodic_stop (EV_A_ w);
1382	ev_periodic_start (EV_A_ w);	1633	ev_periodic_start (EV_A_ w);
1383	}	1634	}
1384		1635	#endif
1385	void
1386	ev_idle_start (EV_P_ struct ev_idle *w)
1387	{
1388	if (ev_is_active (w))
1389	return;
1390
1391	ev_start (EV_A_ (W)w, ++idlecnt);
1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1393	idles [idlecnt - 1] = w;
1394	}
1395
1396	void
1397	ev_idle_stop (EV_P_ struct ev_idle *w)
1398	{
1399	ev_clear_pending (EV_A_ (W)w);
1400	if (ev_is_active (w))
1401	return;
1402
1403	idles [((W)w)->active - 1] = idles [--idlecnt];
1404	ev_stop (EV_A_ (W)w);
1405	}
1406
1407	void
1408	ev_prepare_start (EV_P_ struct ev_prepare *w)
1409	{
1410	if (ev_is_active (w))
1411	return;
1412
1413	ev_start (EV_A_ (W)w, ++preparecnt);
1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1415	prepares [preparecnt - 1] = w;
1416	}
1417
1418	void
1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420	{
1421	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))
1423	return;
1424
1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426	ev_stop (EV_A_ (W)w);
1427	}
1428
1429	void
1430	ev_check_start (EV_P_ struct ev_check *w)
1431	{
1432	if (ev_is_active (w))
1433	return;
1434
1435	ev_start (EV_A_ (W)w, ++checkcnt);
1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1437	checks [checkcnt - 1] = w;
1438	}
1439
1440	void
1441	ev_check_stop (EV_P_ struct ev_check *w)
1442	{
1443	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))
1445	return;
1446
1447	checks [((W)w)->active - 1] = checks [--checkcnt];
1448	ev_stop (EV_A_ (W)w);
1449	}
1450		1636
1451	#ifndef SA_RESTART	1637	#ifndef SA_RESTART
1452	# define SA_RESTART 0	1638	# define SA_RESTART 0
1453	#endif	1639	#endif
1454		1640
1455	void	1641	void
1456	ev_signal_start (EV_P_ struct ev_signal *w)	1642	ev_signal_start (EV_P_ ev_signal *w)
1457	{	1643	{
1458	#if EV_MULTIPLICITY	1644	#if EV_MULTIPLICITY
1459	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1645	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1460	#endif	1646	#endif
1461	if (ev_is_active (w))	1647	if (expect_false (ev_is_active (w)))
1462	return;	1648	return;
1463		1649
1464	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1650	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1465		1651
1466	ev_start (EV_A_ (W)w, 1);	1652	ev_start (EV_A_ (W)w, 1);
1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1653	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1654	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469		1655
1470	if (!((WL)w)->next)	1656	if (!((WL)w)->next)
1471	{	1657	{
1472	#if WIN32	1658	#if _WIN32
1473	signal (w->signum, sighandler);	1659	signal (w->signum, sighandler);
1474	#else	1660	#else
1475	struct sigaction sa;	1661	struct sigaction sa;
1476	sa.sa_handler = sighandler;	1662	sa.sa_handler = sighandler;
1477	sigfillset (&sa.sa_mask);	1663	sigfillset (&sa.sa_mask);
…		…
1480	#endif	1666	#endif
1481	}	1667	}
1482	}	1668	}
1483		1669
1484	void	1670	void
1485	ev_signal_stop (EV_P_ struct ev_signal *w)	1671	ev_signal_stop (EV_P_ ev_signal *w)
1486	{	1672	{
1487	ev_clear_pending (EV_A_ (W)w);	1673	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1674	if (expect_false (!ev_is_active (w)))
1489	return;	1675	return;
1490		1676
1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1677	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492	ev_stop (EV_A_ (W)w);	1678	ev_stop (EV_A_ (W)w);
1493		1679
1494	if (!signals [w->signum - 1].head)	1680	if (!signals [w->signum - 1].head)
1495	signal (w->signum, SIG_DFL);	1681	signal (w->signum, SIG_DFL);
1496	}	1682	}
1497		1683
1498	void	1684	void
1499	ev_child_start (EV_P_ struct ev_child *w)	1685	ev_child_start (EV_P_ ev_child *w)
1500	{	1686	{
1501	#if EV_MULTIPLICITY	1687	#if EV_MULTIPLICITY
1502	assert (("child watchers are only supported in the default loop", loop == default_loop));	1688	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503	#endif	1689	#endif
1504	if (ev_is_active (w))	1690	if (expect_false (ev_is_active (w)))
1505	return;	1691	return;
1506		1692
1507	ev_start (EV_A_ (W)w, 1);	1693	ev_start (EV_A_ (W)w, 1);
1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1694	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1509	}	1695	}
1510		1696
1511	void	1697	void
1512	ev_child_stop (EV_P_ struct ev_child *w)	1698	ev_child_stop (EV_P_ ev_child *w)
1513	{	1699	{
1514	ev_clear_pending (EV_A_ (W)w);	1700	ev_clear_pending (EV_A_ (W)w);
1515	if (ev_is_active (w))	1701	if (expect_false (!ev_is_active (w)))
1516	return;	1702	return;
1517		1703
1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1704	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1519	ev_stop (EV_A_ (W)w);	1705	ev_stop (EV_A_ (W)w);
1520	}	1706	}
1521		1707
		1708	#if EV_STAT_ENABLE
		1709
		1710	# ifdef _WIN32
		1711	# undef lstat
		1712	# define lstat(a,b) _stati64 (a,b)
		1713	# endif
		1714
		1715	#define DEF_STAT_INTERVAL 5.0074891
		1716	#define MIN_STAT_INTERVAL 0.1074891
		1717
		1718	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1719
		1720	#if EV_USE_INOTIFY
		1721	# define EV_INOTIFY_BUFSIZE 8192
		1722
		1723	static void noinline
		1724	infy_add (EV_P_ ev_stat *w)
		1725	{
		1726	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);
		1727
		1728	if (w->wd < 0)
		1729	{
		1730	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1731
		1732	/* monitor some parent directory for speedup hints */
		1733	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1734	{
		1735	char path [4096];
		1736	strcpy (path, w->path);
		1737
		1738	do
		1739	{
		1740	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1741	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1742
		1743	char *pend = strrchr (path, '/');
		1744
		1745	if (!pend)
		1746	break; /* whoops, no '/', complain to your admin */
		1747
		1748	*pend = 0;
		1749	w->wd = inotify_add_watch (fs_fd, path, mask);
		1750	}
		1751	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1752	}
		1753	}
		1754	else
		1755	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1756
		1757	if (w->wd >= 0)
		1758	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1759	}
		1760
		1761	static void noinline
		1762	infy_del (EV_P_ ev_stat *w)
		1763	{
		1764	int slot;
		1765	int wd = w->wd;
		1766
		1767	if (wd < 0)
		1768	return;
		1769
		1770	w->wd = -2;
		1771	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1772	wlist_del (&fs_hash [slot].head, (WL)w);
		1773
		1774	/* remove this watcher, if others are watching it, they will rearm */
		1775	inotify_rm_watch (fs_fd, wd);
		1776	}
		1777
		1778	static void noinline
		1779	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1780	{
		1781	if (slot < 0)
		1782	/* overflow, need to check for all hahs slots */
		1783	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1784	infy_wd (EV_A_ slot, wd, ev);
		1785	else
		1786	{
		1787	WL w_;
		1788
		1789	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1790	{
		1791	ev_stat *w = (ev_stat *)w_;
		1792	w_ = w_->next; /* lets us remove this watcher and all before it */
		1793
		1794	if (w->wd == wd || wd == -1)
		1795	{
		1796	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1797	{
		1798	w->wd = -1;
		1799	infy_add (EV_A_ w); /* re-add, no matter what */
		1800	}
		1801
		1802	stat_timer_cb (EV_A_ &w->timer, 0);
		1803	}
		1804	}
		1805	}
		1806	}
		1807
		1808	static void
		1809	infy_cb (EV_P_ ev_io *w, int revents)
		1810	{
		1811	char buf [EV_INOTIFY_BUFSIZE];
		1812	struct inotify_event *ev = (struct inotify_event *)buf;
		1813	int ofs;
		1814	int len = read (fs_fd, buf, sizeof (buf));
		1815
		1816	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1817	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1818	}
		1819
		1820	void inline_size
		1821	infy_init (EV_P)
		1822	{
		1823	if (fs_fd != -2)
		1824	return;
		1825
		1826	fs_fd = inotify_init ();
		1827
		1828	if (fs_fd >= 0)
		1829	{
		1830	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1831	ev_set_priority (&fs_w, EV_MAXPRI);
		1832	ev_io_start (EV_A_ &fs_w);
		1833	}
		1834	}
		1835
		1836	#endif
		1837
		1838	void
		1839	ev_stat_stat (EV_P_ ev_stat *w)
		1840	{
		1841	if (lstat (w->path, &w->attr) < 0)
		1842	w->attr.st_nlink = 0;
		1843	else if (!w->attr.st_nlink)
		1844	w->attr.st_nlink = 1;
		1845	}
		1846
		1847	void noinline
		1848	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1849	{
		1850	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		1851
		1852	/* we copy this here each the time so that */
		1853	/* prev has the old value when the callback gets invoked */
		1854	w->prev = w->attr;
		1855	ev_stat_stat (EV_A_ w);
		1856
		1857	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
		1858	{
		1859	#if EV_USE_INOTIFY
		1860	infy_del (EV_A_ w);
		1861	infy_add (EV_A_ w);
		1862	ev_stat_stat (EV_A_ w); /* avoid race... */
		1863	#endif
		1864
		1865	ev_feed_event (EV_A_ w, EV_STAT);
		1866	}
		1867	}
		1868
		1869	void
		1870	ev_stat_start (EV_P_ ev_stat *w)
		1871	{
		1872	if (expect_false (ev_is_active (w)))
		1873	return;
		1874
		1875	/* since we use memcmp, we need to clear any padding data etc. */
		1876	memset (&w->prev, 0, sizeof (ev_statdata));
		1877	memset (&w->attr, 0, sizeof (ev_statdata));
		1878
		1879	ev_stat_stat (EV_A_ w);
		1880
		1881	if (w->interval < MIN_STAT_INTERVAL)
		1882	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		1883
		1884	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1885	ev_set_priority (&w->timer, ev_priority (w));
		1886
		1887	#if EV_USE_INOTIFY
		1888	infy_init (EV_A);
		1889
		1890	if (fs_fd >= 0)
		1891	infy_add (EV_A_ w);
		1892	else
		1893	#endif
		1894	ev_timer_start (EV_A_ &w->timer);
		1895
		1896	ev_start (EV_A_ (W)w, 1);
		1897	}
		1898
		1899	void
		1900	ev_stat_stop (EV_P_ ev_stat *w)
		1901	{
		1902	ev_clear_pending (EV_A_ (W)w);
		1903	if (expect_false (!ev_is_active (w)))
		1904	return;
		1905
		1906	#if EV_USE_INOTIFY
		1907	infy_del (EV_A_ w);
		1908	#endif
		1909	ev_timer_stop (EV_A_ &w->timer);
		1910
		1911	ev_stop (EV_A_ (W)w);
		1912	}
		1913	#endif
		1914
		1915	void
		1916	ev_idle_start (EV_P_ ev_idle *w)
		1917	{
		1918	if (expect_false (ev_is_active (w)))
		1919	return;
		1920
		1921	ev_start (EV_A_ (W)w, ++idlecnt);
		1922	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1923	idles [idlecnt - 1] = w;
		1924	}
		1925
		1926	void
		1927	ev_idle_stop (EV_P_ ev_idle *w)
		1928	{
		1929	ev_clear_pending (EV_A_ (W)w);
		1930	if (expect_false (!ev_is_active (w)))
		1931	return;
		1932
		1933	{
		1934	int active = ((W)w)->active;
		1935	idles [active - 1] = idles [--idlecnt];
		1936	((W)idles [active - 1])->active = active;
		1937	}
		1938
		1939	ev_stop (EV_A_ (W)w);
		1940	}
		1941
		1942	void
		1943	ev_prepare_start (EV_P_ ev_prepare *w)
		1944	{
		1945	if (expect_false (ev_is_active (w)))
		1946	return;
		1947
		1948	ev_start (EV_A_ (W)w, ++preparecnt);
		1949	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1950	prepares [preparecnt - 1] = w;
		1951	}
		1952
		1953	void
		1954	ev_prepare_stop (EV_P_ ev_prepare *w)
		1955	{
		1956	ev_clear_pending (EV_A_ (W)w);
		1957	if (expect_false (!ev_is_active (w)))
		1958	return;
		1959
		1960	{
		1961	int active = ((W)w)->active;
		1962	prepares [active - 1] = prepares [--preparecnt];
		1963	((W)prepares [active - 1])->active = active;
		1964	}
		1965
		1966	ev_stop (EV_A_ (W)w);
		1967	}
		1968
		1969	void
		1970	ev_check_start (EV_P_ ev_check *w)
		1971	{
		1972	if (expect_false (ev_is_active (w)))
		1973	return;
		1974
		1975	ev_start (EV_A_ (W)w, ++checkcnt);
		1976	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		1977	checks [checkcnt - 1] = w;
		1978	}
		1979
		1980	void
		1981	ev_check_stop (EV_P_ ev_check *w)
		1982	{
		1983	ev_clear_pending (EV_A_ (W)w);
		1984	if (expect_false (!ev_is_active (w)))
		1985	return;
		1986
		1987	{
		1988	int active = ((W)w)->active;
		1989	checks [active - 1] = checks [--checkcnt];
		1990	((W)checks [active - 1])->active = active;
		1991	}
		1992
		1993	ev_stop (EV_A_ (W)w);
		1994	}
		1995
		1996	#if EV_EMBED_ENABLE
		1997	void noinline
		1998	ev_embed_sweep (EV_P_ ev_embed *w)
		1999	{
		2000	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2001	}
		2002
		2003	static void
		2004	embed_cb (EV_P_ ev_io *io, int revents)
		2005	{
		2006	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2007
		2008	if (ev_cb (w))
		2009	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2010	else
		2011	ev_embed_sweep (loop, w);
		2012	}
		2013
		2014	void
		2015	ev_embed_start (EV_P_ ev_embed *w)
		2016	{
		2017	if (expect_false (ev_is_active (w)))
		2018	return;
		2019
		2020	{
		2021	struct ev_loop *loop = w->loop;
		2022	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2023	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2024	}
		2025
		2026	ev_set_priority (&w->io, ev_priority (w));
		2027	ev_io_start (EV_A_ &w->io);
		2028
		2029	ev_start (EV_A_ (W)w, 1);
		2030	}
		2031
		2032	void
		2033	ev_embed_stop (EV_P_ ev_embed *w)
		2034	{
		2035	ev_clear_pending (EV_A_ (W)w);
		2036	if (expect_false (!ev_is_active (w)))
		2037	return;
		2038
		2039	ev_io_stop (EV_A_ &w->io);
		2040
		2041	ev_stop (EV_A_ (W)w);
		2042	}
		2043	#endif
		2044
		2045	#if EV_FORK_ENABLE
		2046	void
		2047	ev_fork_start (EV_P_ ev_fork *w)
		2048	{
		2049	if (expect_false (ev_is_active (w)))
		2050	return;
		2051
		2052	ev_start (EV_A_ (W)w, ++forkcnt);
		2053	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2054	forks [forkcnt - 1] = w;
		2055	}
		2056
		2057	void
		2058	ev_fork_stop (EV_P_ ev_fork *w)
		2059	{
		2060	ev_clear_pending (EV_A_ (W)w);
		2061	if (expect_false (!ev_is_active (w)))
		2062	return;
		2063
		2064	{
		2065	int active = ((W)w)->active;
		2066	forks [active - 1] = forks [--forkcnt];
		2067	((W)forks [active - 1])->active = active;
		2068	}
		2069
		2070	ev_stop (EV_A_ (W)w);
		2071	}
		2072	#endif
		2073
1522	/*****************************************************************************/	2074	/*****************************************************************************/
1523		2075
1524	struct ev_once	2076	struct ev_once
1525	{	2077	{
1526	struct ev_io io;	2078	ev_io io;
1527	struct ev_timer to;	2079	ev_timer to;
1528	void (*cb)(int revents, void *arg);	2080	void (*cb)(int revents, void *arg);
1529	void *arg;	2081	void *arg;
1530	};	2082	};
1531		2083
1532	static void	2084	static void
…		…
1541		2093
1542	cb (revents, arg);	2094	cb (revents, arg);
1543	}	2095	}
1544		2096
1545	static void	2097	static void
1546	once_cb_io (EV_P_ struct ev_io *w, int revents)	2098	once_cb_io (EV_P_ ev_io *w, int revents)
1547	{	2099	{
1548	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2100	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1549	}	2101	}
1550		2102
1551	static void	2103	static void
1552	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2104	once_cb_to (EV_P_ ev_timer *w, int revents)
1553	{	2105	{
1554	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2106	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1555	}	2107	}
1556		2108
1557	void	2109	void
1558	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	2110	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1559	{	2111	{
1560	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	2112	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1561		2113
1562	if (!once)	2114	if (expect_false (!once))
		2115	{
1563	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	2116	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1564	else	2117	return;
1565	{	2118	}
		2119
1566	once->cb = cb;	2120	once->cb = cb;
1567	once->arg = arg;	2121	once->arg = arg;
1568		2122
1569	ev_watcher_init (&once->io, once_cb_io);	2123	ev_init (&once->io, once_cb_io);
1570	if (fd >= 0)	2124	if (fd >= 0)
1571	{	2125	{
1572	ev_io_set (&once->io, fd, events);	2126	ev_io_set (&once->io, fd, events);
1573	ev_io_start (EV_A_ &once->io);	2127	ev_io_start (EV_A_ &once->io);
1574	}	2128	}
1575		2129
1576	ev_watcher_init (&once->to, once_cb_to);	2130	ev_init (&once->to, once_cb_to);
1577	if (timeout >= 0.)	2131	if (timeout >= 0.)
1578	{	2132	{
1579	ev_timer_set (&once->to, timeout, 0.);	2133	ev_timer_set (&once->to, timeout, 0.);
1580	ev_timer_start (EV_A_ &once->to);	2134	ev_timer_start (EV_A_ &once->to);
1581	}
1582	}	2135	}
1583	}	2136	}
1584		2137
		2138	#ifdef __cplusplus
		2139	}
		2140	#endif
		2141

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