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Comparing libev/ev.c (file contents):
Revision 1.62 by root, Sun Nov 4 20:38:07 2007 UTC vs.
Revision 1.155 by root, Wed Nov 28 17:32:24 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>
58	#include <stdlib.h>	110	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	111	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	112	#include <stddef.h>
63		113
64	#include <stdio.h>	114	#include <stdio.h>
65		115
66	#include <assert.h>	116	#include <assert.h>
67	#include <errno.h>	117	#include <errno.h>
68	#include <sys/types.h>	118	#include <sys/types.h>
		119	#include <time.h>
		120
		121	#include <signal.h>
		122
		123	#ifdef EV_H
		124	# include EV_H
		125	#else
		126	# include "ev.h"
		127	#endif
		128
69	#ifndef WIN32	129	#ifndef _WIN32
		130	# include <sys/time.h>
70	# include <sys/wait.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
71	#endif	138	# endif
72	#include <sys/time.h>	139	#endif
73	#include <time.h>
74		140
75	/**/	141	/**/
76		142
77	#ifndef EV_USE_MONOTONIC	143	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	144	# define EV_USE_MONOTONIC 0
		145	#endif
		146
		147	#ifndef EV_USE_REALTIME
		148	# define EV_USE_REALTIME 0
79	#endif	149	#endif
80		150
81	#ifndef EV_USE_SELECT	151	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	152	# define EV_USE_SELECT 1
83	#endif	153	#endif
84		154
85	#ifndef EV_USE_POLL	155	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	156	# ifdef _WIN32
		157	# define EV_USE_POLL 0
		158	# else
		159	# define EV_USE_POLL 1
		160	# endif
87	#endif	161	#endif
88		162
89	#ifndef EV_USE_EPOLL	163	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	164	# define EV_USE_EPOLL 0
91	#endif	165	#endif
92		166
93	#ifndef EV_USE_KQUEUE	167	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	168	# define EV_USE_KQUEUE 0
95	#endif	169	#endif
96		170
		171	#ifndef EV_USE_PORT
		172	# define EV_USE_PORT 0
		173	#endif
		174
97	#ifndef EV_USE_WIN32	175	#ifndef EV_USE_INOTIFY
98	# ifdef WIN32	176	# define EV_USE_INOTIFY 0
99	# define EV_USE_WIN32 1	177	#endif
		178
		179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
100	# else	182	# else
101	# define EV_USE_WIN32 0	183	# define EV_PID_HASHSIZE 16
102	# endif	184	# endif
103	#endif	185	#endif
104		186
105	#ifndef EV_USE_REALTIME	187	#ifndef EV_INOTIFY_HASHSIZE
106	# define EV_USE_REALTIME 1	188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
107	#endif	193	#endif
108		194
109	/**/	195	/**/
110		196
111	#ifndef CLOCK_MONOTONIC	197	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	202	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	203	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	204	# define EV_USE_REALTIME 0
119	#endif	205	#endif
120		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
121	/**/	219	/**/
122		220
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	223	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
127
128	#include "ev.h"
129		224
130	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
131	# 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
132	# 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
133	#else	235	#else
134	# define expect(expr,value) (expr)	236	# define expect(expr,value) (expr)
		237	# define inline_speed static
135	# define inline static	238	# define inline_size static
		239	# define noinline
136	#endif	240	#endif
137		241
138	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
139	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
140		244
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		247
		248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		249	#define EMPTY2(a,b) /* used to suppress some warnings */
		250
144	typedef struct ev_watcher *W;	251	typedef ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
147		254
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		256
		257	#ifdef _WIN32
		258	# include "ev_win32.c"
		259	#endif
		260
150	/*****************************************************************************/	261	/*****************************************************************************/
151		262
		263	static void (*syserr_cb)(const char *msg);
		264
		265	void
		266	ev_set_syserr_cb (void (*cb)(const char *msg))
		267	{
		268	syserr_cb = cb;
		269	}
		270
		271	static void noinline
		272	syserr (const char *msg)
		273	{
		274	if (!msg)
		275	msg = "(libev) system error";
		276
		277	if (syserr_cb)
		278	syserr_cb (msg);
		279	else
		280	{
		281	perror (msg);
		282	abort ();
		283	}
		284	}
		285
		286	static void *(*alloc)(void *ptr, long size);
		287
		288	void
		289	ev_set_allocator (void *(*cb)(void *ptr, long size))
		290	{
		291	alloc = cb;
		292	}
		293
		294	inline_speed void *
		295	ev_realloc (void *ptr, long size)
		296	{
		297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		298
		299	if (!ptr && size)
		300	{
		301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		302	abort ();
		303	}
		304
		305	return ptr;
		306	}
		307
		308	#define ev_malloc(size) ev_realloc (0, (size))
		309	#define ev_free(ptr) ev_realloc ((ptr), 0)
		310
		311	/*****************************************************************************/
		312
152	typedef struct	313	typedef struct
153	{	314	{
154	struct ev_watcher_list *head;	315	WL head;
155	unsigned char events;	316	unsigned char events;
156	unsigned char reify;	317	unsigned char reify;
		318	#if EV_SELECT_IS_WINSOCKET
		319	SOCKET handle;
		320	#endif
157	} ANFD;	321	} ANFD;
158		322
159	typedef struct	323	typedef struct
160	{	324	{
161	W w;	325	W w;
162	int events;	326	int events;
163	} ANPENDING;	327	} ANPENDING;
164		328
		329	#if EV_USE_INOTIFY
		330	typedef struct
		331	{
		332	WL head;
		333	} ANFS;
		334	#endif
		335
165	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
166		337
167	struct ev_loop	338	struct ev_loop
168	{	339	{
		340	ev_tstamp ev_rt_now;
		341	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	342	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	343	#include "ev_vars.h"
171	};
172	# undef VAR	344	#undef VAR
		345	};
173	# include "ev_wrap.h"	346	#include "ev_wrap.h"
		347
		348	static struct ev_loop default_loop_struct;
		349	struct ev_loop *ev_default_loop_ptr;
174		350
175	#else	351	#else
176		352
		353	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	354	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	355	#include "ev_vars.h"
179	# undef VAR	356	#undef VAR
		357
		358	static int ev_default_loop_ptr;
180		359
181	#endif	360	#endif
182		361
183	/*****************************************************************************/	362	/*****************************************************************************/
184		363
185	inline ev_tstamp	364	ev_tstamp
186	ev_time (void)	365	ev_time (void)
187	{	366	{
188	#if EV_USE_REALTIME	367	#if EV_USE_REALTIME
189	struct timespec ts;	368	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	369	clock_gettime (CLOCK_REALTIME, &ts);
…		…
194	gettimeofday (&tv, 0);	373	gettimeofday (&tv, 0);
195	return tv.tv_sec + tv.tv_usec * 1e-6;	374	return tv.tv_sec + tv.tv_usec * 1e-6;
196	#endif	375	#endif
197	}	376	}
198		377
199	inline ev_tstamp	378	ev_tstamp inline_size
200	get_clock (void)	379	get_clock (void)
201	{	380	{
202	#if EV_USE_MONOTONIC	381	#if EV_USE_MONOTONIC
203	if (expect_true (have_monotonic))	382	if (expect_true (have_monotonic))
204	{	383	{
…		…
209	#endif	388	#endif
210		389
211	return ev_time ();	390	return ev_time ();
212	}	391	}
213		392
		393	#if EV_MULTIPLICITY
214	ev_tstamp	394	ev_tstamp
215	ev_now (EV_P)	395	ev_now (EV_P)
216	{	396	{
217	return rt_now;	397	return ev_rt_now;
218	}	398	}
		399	#endif
219		400
220	#define array_roundsize(base,n) ((n) | 4 & ~3)	401	#define array_roundsize(type,n) (((n) | 4) & ~3)
221		402
222	#define array_needsize(base,cur,cnt,init) \	403	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	404	if (expect_false ((cnt) > cur)) \
224	{ \	405	{ \
225	int newcnt = cur; \	406	int newcnt = cur; \
226	do \	407	do \
227	{ \	408	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	409	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	410	} \
230	while ((cnt) > newcnt); \	411	while ((cnt) > newcnt); \
231	\	412	\
232	base = realloc (base, sizeof (*base) * (newcnt)); \	413	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
233	init (base + cur, newcnt - cur); \	414	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	415	cur = newcnt; \
235	}	416	}
		417
		418	#define array_slim(type,stem) \
		419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		420	{ \
		421	stem ## max = array_roundsize (stem ## cnt >> 1); \
		422	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
		423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		424	}
		425
		426	#define array_free(stem, idx) \
		427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		428
237	/*****************************************************************************/	429	/*****************************************************************************/
238		430
239	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
240	anfds_init (ANFD *base, int count)	460	anfds_init (ANFD *base, int count)
241	{	461	{
242	while (count--)	462	while (count--)
243	{	463	{
244	base->head = 0;	464	base->head = 0;
…		…
247		467
248	++base;	468	++base;
249	}	469	}
250	}	470	}
251		471
252	static void	472	void inline_speed
253	event (EV_P_ W w, int events)
254	{
255	if (w->pending)
256	{
257	pendings [ABSPRI (w)][w->pending - 1].events |= events;
258	return;
259	}
260
261	w->pending = ++pendingcnt [ABSPRI (w)];
262	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
263	pendings [ABSPRI (w)][w->pending - 1].w = w;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;
265	}
266
267	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{
270	int i;
271
272	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);
274	}
275
276	static void
277	fd_event (EV_P_ int fd, int events)	473	fd_event (EV_P_ int fd, int revents)
278	{	474	{
279	ANFD *anfd = anfds + fd;	475	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	476	ev_io *w;
281		477
282	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)
283	{	479	{
284	int ev = w->events & events;	480	int ev = w->events & revents;
285		481
286	if (ev)	482	if (ev)
287	event (EV_A_ (W)w, ev);	483	ev_feed_event (EV_A_ (W)w, ev);
288	}	484	}
289	}	485	}
290		486
291	/*****************************************************************************/	487	void
		488	ev_feed_fd_event (EV_P_ int fd, int revents)
		489	{
		490	fd_event (EV_A_ fd, revents);
		491	}
292		492
293	static void	493	void inline_size
294	fd_reify (EV_P)	494	fd_reify (EV_P)
295	{	495	{
296	int i;	496	int i;
297		497
298	for (i = 0; i < fdchangecnt; ++i)	498	for (i = 0; i < fdchangecnt; ++i)
299	{	499	{
300	int fd = fdchanges [i];	500	int fd = fdchanges [i];
301	ANFD *anfd = anfds + fd;	501	ANFD *anfd = anfds + fd;
302	struct ev_io *w;	502	ev_io *w;
303		503
304	int events = 0;	504	int events = 0;
305		505
306	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)
307	events |= w->events;	507	events |= w->events;
308		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
309	anfd->reify = 0;	518	anfd->reify = 0;
310		519
311	if (anfd->events != events)
312	{
313	method_modify (EV_A_ fd, anfd->events, events);	520	backend_modify (EV_A_ fd, anfd->events, events);
314	anfd->events = events;	521	anfd->events = events;
315	}
316	}	522	}
317		523
318	fdchangecnt = 0;	524	fdchangecnt = 0;
319	}	525	}
320		526
321	static void	527	void inline_size
322	fd_change (EV_P_ int fd)	528	fd_change (EV_P_ int fd)
323	{	529	{
324	if (anfds [fd].reify || fdchangecnt < 0)	530	if (expect_false (anfds [fd].reify))
325	return;	531	return;
326		532
327	anfds [fd].reify = 1;	533	anfds [fd].reify = 1;
328		534
329	++fdchangecnt;	535	++fdchangecnt;
330	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
331	fdchanges [fdchangecnt - 1] = fd;	537	fdchanges [fdchangecnt - 1] = fd;
332	}	538	}
333		539
334	static void	540	void inline_speed
335	fd_kill (EV_P_ int fd)	541	fd_kill (EV_P_ int fd)
336	{	542	{
337	struct ev_io *w;	543	ev_io *w;
338		544
339	while ((w = (struct ev_io *)anfds [fd].head))	545	while ((w = (ev_io *)anfds [fd].head))
340	{	546	{
341	ev_io_stop (EV_A_ w);	547	ev_io_stop (EV_A_ w);
342	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);
343	}	549	}
		550	}
		551
		552	int inline_size
		553	fd_valid (int fd)
		554	{
		555	#ifdef _WIN32
		556	return _get_osfhandle (fd) != -1;
		557	#else
		558	return fcntl (fd, F_GETFD) != -1;
		559	#endif
344	}	560	}
345		561
346	/* called on EBADF to verify fds */	562	/* called on EBADF to verify fds */
347	static void	563	static void noinline
348	fd_ebadf (EV_P)	564	fd_ebadf (EV_P)
349	{	565	{
350	int fd;	566	int fd;
351		567
352	for (fd = 0; fd < anfdmax; ++fd)	568	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	569	if (anfds [fd].events)
354	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	570	if (!fd_valid (fd) == -1 && errno == EBADF)
355	fd_kill (EV_A_ fd);	571	fd_kill (EV_A_ fd);
356	}	572	}
357		573
358	/* 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 */
359	static void	575	static void noinline
360	fd_enomem (EV_P)	576	fd_enomem (EV_P)
361	{	577	{
362	int fd;	578	int fd;
363		579
364	for (fd = anfdmax; fd--; )	580	for (fd = anfdmax; fd--; )
365	if (anfds [fd].events)	581	if (anfds [fd].events)
366	{	582	{
367	close (fd);
368	fd_kill (EV_A_ fd);	583	fd_kill (EV_A_ fd);
369	return;	584	return;
370	}	585	}
371	}	586	}
372		587
373	/* susually 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 */
374	static void	589	static void noinline
375	fd_rearm_all (EV_P)	590	fd_rearm_all (EV_P)
376	{	591	{
377	int fd;	592	int fd;
378		593
379	/* 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 */
…		…
385	}	600	}
386	}	601	}
387		602
388	/*****************************************************************************/	603	/*****************************************************************************/
389		604
390	static void	605	void inline_speed
391	upheap (WT *heap, int k)	606	upheap (WT *heap, int k)
392	{	607	{
393	WT w = heap [k];	608	WT w = heap [k];
394		609
395	while (k && heap [k >> 1]->at > w->at)	610	while (k && heap [k >> 1]->at > w->at)
…		…
402	heap [k] = w;	617	heap [k] = w;
403	((W)heap [k])->active = k + 1;	618	((W)heap [k])->active = k + 1;
404		619
405	}	620	}
406		621
407	static void	622	void inline_speed
408	downheap (WT *heap, int N, int k)	623	downheap (WT *heap, int N, int k)
409	{	624	{
410	WT w = heap [k];	625	WT w = heap [k];
411		626
412	while (k < (N >> 1))	627	while (k < (N >> 1))
…		…
426		641
427	heap [k] = w;	642	heap [k] = w;
428	((W)heap [k])->active = k + 1;	643	((W)heap [k])->active = k + 1;
429	}	644	}
430		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
431	/*****************************************************************************/	653	/*****************************************************************************/
432		654
433	typedef struct	655	typedef struct
434	{	656	{
435	struct ev_watcher_list *head;	657	WL head;
436	sig_atomic_t volatile gotsig;	658	sig_atomic_t volatile gotsig;
437	} ANSIG;	659	} ANSIG;
438		660
439	static ANSIG *signals;	661	static ANSIG *signals;
440	static int signalmax;	662	static int signalmax;
441		663
442	static int sigpipe [2];	664	static int sigpipe [2];
443	static sig_atomic_t volatile gotsig;	665	static sig_atomic_t volatile gotsig;
444	static struct ev_io sigev;	666	static ev_io sigev;
445		667
446	static void	668	void inline_size
447	signals_init (ANSIG *base, int count)	669	signals_init (ANSIG *base, int count)
448	{	670	{
449	while (count--)	671	while (count--)
450	{	672	{
451	base->head = 0;	673	base->head = 0;
…		…
456	}	678	}
457		679
458	static void	680	static void
459	sighandler (int signum)	681	sighandler (int signum)
460	{	682	{
		683	#if _WIN32
		684	signal (signum, sighandler);
		685	#endif
		686
461	signals [signum - 1].gotsig = 1;	687	signals [signum - 1].gotsig = 1;
462		688
463	if (!gotsig)	689	if (!gotsig)
464	{	690	{
465	int old_errno = errno;	691	int old_errno = errno;
…		…
467	write (sigpipe [1], &signum, 1);	693	write (sigpipe [1], &signum, 1);
468	errno = old_errno;	694	errno = old_errno;
469	}	695	}
470	}	696	}
471		697
		698	void noinline
		699	ev_feed_signal_event (EV_P_ int signum)
		700	{
		701	WL w;
		702
		703	#if EV_MULTIPLICITY
		704	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		705	#endif
		706
		707	--signum;
		708
		709	if (signum < 0 || signum >= signalmax)
		710	return;
		711
		712	signals [signum].gotsig = 0;
		713
		714	for (w = signals [signum].head; w; w = w->next)
		715	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		716	}
		717
472	static void	718	static void
473	sigcb (EV_P_ struct ev_io *iow, int revents)	719	sigcb (EV_P_ ev_io *iow, int revents)
474	{	720	{
475	struct ev_watcher_list *w;
476	int signum;	721	int signum;
477		722
478	read (sigpipe [0], &revents, 1);	723	read (sigpipe [0], &revents, 1);
479	gotsig = 0;	724	gotsig = 0;
480		725
481	for (signum = signalmax; signum--; )	726	for (signum = signalmax; signum--; )
482	if (signals [signum].gotsig)	727	if (signals [signum].gotsig)
483	{	728	ev_feed_signal_event (EV_A_ signum + 1);
484	signals [signum].gotsig = 0;
485
486	for (w = signals [signum].head; w; w = w->next)
487	event (EV_A_ (W)w, EV_SIGNAL);
488	}
489	}	729	}
490		730
491	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
492	siginit (EV_P)	744	siginit (EV_P)
493	{	745	{
494	#ifndef WIN32	746	fd_intern (sigpipe [0]);
495	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	747	fd_intern (sigpipe [1]);
496	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
497
498	/* rather than sort out wether we really need nb, set it */
499	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
500	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
501	#endif
502		748
503	ev_io_set (&sigev, sigpipe [0], EV_READ);	749	ev_io_set (&sigev, sigpipe [0], EV_READ);
504	ev_io_start (EV_A_ &sigev);	750	ev_io_start (EV_A_ &sigev);
505	ev_unref (EV_A); /* child watcher should not keep loop alive */	751	ev_unref (EV_A); /* child watcher should not keep loop alive */
506	}	752	}
507		753
508	/*****************************************************************************/	754	/*****************************************************************************/
509		755
		756	static ev_child *childs [EV_PID_HASHSIZE];
		757
510	#ifndef WIN32	758	#ifndef _WIN32
511		759
512	static struct ev_child *childs [PID_HASHSIZE];
513	static struct ev_signal childev;	760	static ev_signal childev;
		761
		762	void inline_speed
		763	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		764	{
		765	ev_child *w;
		766
		767	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		768	if (w->pid == pid || !w->pid)
		769	{
		770	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
		771	w->rpid = pid;
		772	w->rstatus = status;
		773	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		774	}
		775	}
514		776
515	#ifndef WCONTINUED	777	#ifndef WCONTINUED
516	# define WCONTINUED 0	778	# define WCONTINUED 0
517	#endif	779	#endif
518		780
519	static void	781	static void
520	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
521	{
522	struct ev_child *w;
523
524	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
525	if (w->pid == pid || !w->pid)
526	{
527	w->priority = sw->priority; /* need to do it *now* */
528	w->rpid = pid;
529	w->rstatus = status;
530	event (EV_A_ (W)w, EV_CHILD);
531	}
532	}
533
534	static void
535	childcb (EV_P_ struct ev_signal *sw, int revents)	782	childcb (EV_P_ ev_signal *sw, int revents)
536	{	783	{
537	int pid, status;	784	int pid, status;
538		785
		786	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
539	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	787	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
540	{	788	if (!WCONTINUED
		789	|| errno != EINVAL
		790	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		791	return;
		792
541	/* 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 */
542	event (EV_A_ (W)sw, EV_SIGNAL);	795	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
543		796
544	child_reap (EV_A_ sw, pid, pid, status);	797	child_reap (EV_A_ sw, pid, pid, status);
		798	if (EV_PID_HASHSIZE > 1)
545	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 */
546	}
547	}	800	}
548		801
549	#endif	802	#endif
550		803
551	/*****************************************************************************/	804	/*****************************************************************************/
552		805
		806	#if EV_USE_PORT
		807	# include "ev_port.c"
		808	#endif
553	#if EV_USE_KQUEUE	809	#if EV_USE_KQUEUE
554	# include "ev_kqueue.c"	810	# include "ev_kqueue.c"
555	#endif	811	#endif
556	#if EV_USE_EPOLL	812	#if EV_USE_EPOLL
557	# include "ev_epoll.c"	813	# include "ev_epoll.c"
…		…
574	{	830	{
575	return EV_VERSION_MINOR;	831	return EV_VERSION_MINOR;
576	}	832	}
577		833
578	/* 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 */
579	static int	835	int inline_size
580	enable_secure (void)	836	enable_secure (void)
581	{	837	{
582	#ifdef WIN32	838	#ifdef _WIN32
583	return 0;	839	return 0;
584	#else	840	#else
585	return getuid () != geteuid ()	841	return getuid () != geteuid ()
586	|| getgid () != getegid ();	842	|| getgid () != getegid ();
587	#endif	843	#endif
588	}	844	}
589		845
590	int	846	unsigned int
591	ev_method (EV_P)	847	ev_supported_backends (void)
592	{	848	{
593	return method;	849	unsigned int flags = 0;
594	}
595		850
596	static void	851	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
597	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)
598	{	862	{
599	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)
600	{	896	{
601	#if EV_USE_MONOTONIC	897	#if EV_USE_MONOTONIC
602	{	898	{
603	struct timespec ts;	899	struct timespec ts;
604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	900	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
605	have_monotonic = 1;	901	have_monotonic = 1;
606	}	902	}
607	#endif	903	#endif
608		904
609	rt_now = ev_time ();	905	ev_rt_now = ev_time ();
610	mn_now = get_clock ();	906	mn_now = get_clock ();
611	now_floor = mn_now;	907	now_floor = mn_now;
612	rtmn_diff = rt_now - mn_now;	908	rtmn_diff = ev_rt_now - mn_now;
613		909
614	if (methods == EVMETHOD_AUTO)	910	if (!(flags & EVFLAG_NOENV)
615	if (!enable_secure () && getenv ("LIBEV_METHODS"))	911	&& !enable_secure ()
		912	&& getenv ("LIBEV_FLAGS"))
616	methods = atoi (getenv ("LIBEV_METHODS"));	913	flags = atoi (getenv ("LIBEV_FLAGS"));
617	else
618	methods = EVMETHOD_ANY;
619		914
620	method = 0;	915	if (!(flags & 0x0000ffffUL))
		916	flags |= ev_recommended_backends ();
		917
		918	backend = 0;
		919	backend_fd = -1;
621	#if EV_USE_WIN32	920	#if EV_USE_INOTIFY
622	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);
623	#endif	926	#endif
624	#if EV_USE_KQUEUE	927	#if EV_USE_KQUEUE
625	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	928	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
626	#endif	929	#endif
627	#if EV_USE_EPOLL	930	#if EV_USE_EPOLL
628	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	931	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
629	#endif	932	#endif
630	#if EV_USE_POLL	933	#if EV_USE_POLL
631	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	934	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
632	#endif	935	#endif
633	#if EV_USE_SELECT	936	#if EV_USE_SELECT
634	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	937	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
635	#endif	938	#endif
636	}
637	}
638		939
639	void	940	ev_init (&sigev, sigcb);
		941	ev_set_priority (&sigev, EV_MAXPRI);
		942	}
		943	}
		944
		945	static void noinline
640	loop_destroy (EV_P)	946	loop_destroy (EV_P)
641	{	947	{
		948	int i;
		949
642	#if EV_USE_WIN32	950	#if EV_USE_INOTIFY
643	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);
644	#endif	960	#endif
645	#if EV_USE_KQUEUE	961	#if EV_USE_KQUEUE
646	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	962	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
647	#endif	963	#endif
648	#if EV_USE_EPOLL	964	#if EV_USE_EPOLL
649	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	965	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
650	#endif	966	#endif
651	#if EV_USE_POLL	967	#if EV_USE_POLL
652	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	968	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
653	#endif	969	#endif
654	#if EV_USE_SELECT	970	#if EV_USE_SELECT
655	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
656	#endif	972	#endif
657		973
658	method = 0;	974	for (i = NUMPRI; i--; )
659	/*TODO*/	975	array_free (pending, [i]);
660	}
661		976
662	void	977	/* have to use the microsoft-never-gets-it-right macro */
		978	array_free (fdchange, EMPTY0);
		979	array_free (timer, EMPTY0);
		980	#if EV_PERIODIC_ENABLE
		981	array_free (periodic, EMPTY0);
		982	#endif
		983	array_free (idle, EMPTY0);
		984	array_free (prepare, EMPTY0);
		985	array_free (check, EMPTY0);
		986
		987	backend = 0;
		988	}
		989
		990	void inline_size infy_fork (EV_P);
		991
		992	void inline_size
663	loop_fork (EV_P)	993	loop_fork (EV_P)
664	{	994	{
665	/*TODO*/	995	#if EV_USE_PORT
		996	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		997	#endif
		998	#if EV_USE_KQUEUE
		999	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		1000	#endif
666	#if EV_USE_EPOLL	1001	#if EV_USE_EPOLL
667	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1002	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
668	#endif	1003	#endif
669	#if EV_USE_KQUEUE	1004	#if EV_USE_INOTIFY
670	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1005	infy_fork (EV_A);
671	#endif	1006	#endif
		1007
		1008	if (ev_is_active (&sigev))
		1009	{
		1010	/* default loop */
		1011
		1012	ev_ref (EV_A);
		1013	ev_io_stop (EV_A_ &sigev);
		1014	close (sigpipe [0]);
		1015	close (sigpipe [1]);
		1016
		1017	while (pipe (sigpipe))
		1018	syserr ("(libev) error creating pipe");
		1019
		1020	siginit (EV_A);
		1021	}
		1022
		1023	postfork = 0;
672	}	1024	}
673		1025
674	#if EV_MULTIPLICITY	1026	#if EV_MULTIPLICITY
675	struct ev_loop *	1027	struct ev_loop *
676	ev_loop_new (int methods)	1028	ev_loop_new (unsigned int flags)
677	{	1029	{
678	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));	1030	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
679		1031
		1032	memset (loop, 0, sizeof (struct ev_loop));
		1033
680	loop_init (EV_A_ methods);	1034	loop_init (EV_A_ flags);
681		1035
682	if (ev_method (EV_A))	1036	if (ev_backend (EV_A))
683	return loop;	1037	return loop;
684		1038
685	return 0;	1039	return 0;
686	}	1040	}
687		1041
688	void	1042	void
689	ev_loop_destroy (EV_P)	1043	ev_loop_destroy (EV_P)
690	{	1044	{
691	loop_destroy (EV_A);	1045	loop_destroy (EV_A);
692	free (loop);	1046	ev_free (loop);
693	}	1047	}
694		1048
695	void	1049	void
696	ev_loop_fork (EV_P)	1050	ev_loop_fork (EV_P)
697	{	1051	{
698	loop_fork (EV_A);	1052	postfork = 1;
699	}	1053	}
700		1054
701	#endif	1055	#endif
702		1056
703	#if EV_MULTIPLICITY	1057	#if EV_MULTIPLICITY
704	struct ev_loop default_loop_struct;
705	static struct ev_loop *default_loop;
706
707	struct ev_loop *	1058	struct ev_loop *
		1059	ev_default_loop_init (unsigned int flags)
708	#else	1060	#else
709	static int default_loop;
710
711	int	1061	int
		1062	ev_default_loop (unsigned int flags)
712	#endif	1063	#endif
713	ev_default_loop (int methods)
714	{	1064	{
715	if (sigpipe [0] == sigpipe [1])	1065	if (sigpipe [0] == sigpipe [1])
716	if (pipe (sigpipe))	1066	if (pipe (sigpipe))
717	return 0;	1067	return 0;
718		1068
719	if (!default_loop)	1069	if (!ev_default_loop_ptr)
720	{	1070	{
721	#if EV_MULTIPLICITY	1071	#if EV_MULTIPLICITY
722	struct ev_loop *loop = default_loop = &default_loop_struct;	1072	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
723	#else	1073	#else
724	default_loop = 1;	1074	ev_default_loop_ptr = 1;
725	#endif	1075	#endif
726		1076
727	loop_init (EV_A_ methods);	1077	loop_init (EV_A_ flags);
728		1078
729	if (ev_method (EV_A))	1079	if (ev_backend (EV_A))
730	{	1080	{
731	ev_watcher_init (&sigev, sigcb);
732	ev_set_priority (&sigev, EV_MAXPRI);
733	siginit (EV_A);	1081	siginit (EV_A);
734		1082
735	#ifndef WIN32	1083	#ifndef _WIN32
736	ev_signal_init (&childev, childcb, SIGCHLD);	1084	ev_signal_init (&childev, childcb, SIGCHLD);
737	ev_set_priority (&childev, EV_MAXPRI);	1085	ev_set_priority (&childev, EV_MAXPRI);
738	ev_signal_start (EV_A_ &childev);	1086	ev_signal_start (EV_A_ &childev);
739	ev_unref (EV_A); /* child watcher should not keep loop alive */	1087	ev_unref (EV_A); /* child watcher should not keep loop alive */
740	#endif	1088	#endif
741	}	1089	}
742	else	1090	else
743	default_loop = 0;	1091	ev_default_loop_ptr = 0;
744	}	1092	}
745		1093
746	return default_loop;	1094	return ev_default_loop_ptr;
747	}	1095	}
748		1096
749	void	1097	void
750	ev_default_destroy (void)	1098	ev_default_destroy (void)
751	{	1099	{
752	#if EV_MULTIPLICITY	1100	#if EV_MULTIPLICITY
753	struct ev_loop *loop = default_loop;	1101	struct ev_loop *loop = ev_default_loop_ptr;
754	#endif	1102	#endif
755		1103
		1104	#ifndef _WIN32
756	ev_ref (EV_A); /* child watcher */	1105	ev_ref (EV_A); /* child watcher */
757	ev_signal_stop (EV_A_ &childev);	1106	ev_signal_stop (EV_A_ &childev);
		1107	#endif
758		1108
759	ev_ref (EV_A); /* signal watcher */	1109	ev_ref (EV_A); /* signal watcher */
760	ev_io_stop (EV_A_ &sigev);	1110	ev_io_stop (EV_A_ &sigev);
761		1111
762	close (sigpipe [0]); sigpipe [0] = 0;	1112	close (sigpipe [0]); sigpipe [0] = 0;
…		…
767		1117
768	void	1118	void
769	ev_default_fork (void)	1119	ev_default_fork (void)
770	{	1120	{
771	#if EV_MULTIPLICITY	1121	#if EV_MULTIPLICITY
772	struct ev_loop *loop = default_loop;	1122	struct ev_loop *loop = ev_default_loop_ptr;
773	#endif	1123	#endif
774		1124
775	loop_fork (EV_A);	1125	if (backend)
776		1126	postfork = 1;
777	ev_io_stop (EV_A_ &sigev);
778	close (sigpipe [0]);
779	close (sigpipe [1]);
780	pipe (sigpipe);
781
782	ev_ref (EV_A); /* signal watcher */
783	siginit (EV_A);
784	}	1127	}
785		1128
786	/*****************************************************************************/	1129	/*****************************************************************************/
787		1130
788	static void	1131	int inline_size
		1132	any_pending (EV_P)
		1133	{
		1134	int pri;
		1135
		1136	for (pri = NUMPRI; pri--; )
		1137	if (pendingcnt [pri])
		1138	return 1;
		1139
		1140	return 0;
		1141	}
		1142
		1143	void inline_speed
789	call_pending (EV_P)	1144	call_pending (EV_P)
790	{	1145	{
791	int pri;	1146	int pri;
792		1147
793	for (pri = NUMPRI; pri--; )	1148	for (pri = NUMPRI; pri--; )
794	while (pendingcnt [pri])	1149	while (pendingcnt [pri])
795	{	1150	{
796	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1151	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
797		1152
798	if (p->w)	1153	if (expect_true (p->w))
799	{	1154	{
		1155	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1156
800	p->w->pending = 0;	1157	p->w->pending = 0;
801	p->w->cb (EV_A_ p->w, p->events);	1158	EV_CB_INVOKE (p->w, p->events);
802	}	1159	}
803	}	1160	}
804	}	1161	}
805		1162
806	static void	1163	void inline_size
807	timers_reify (EV_P)	1164	timers_reify (EV_P)
808	{	1165	{
809	while (timercnt && timers [0]->at <= mn_now)	1166	while (timercnt && ((WT)timers [0])->at <= mn_now)
810	{	1167	{
811	struct ev_timer *w = timers [0];	1168	ev_timer *w = timers [0];
812		1169
813	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1170	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
814		1171
815	/* first reschedule or stop timer */	1172	/* first reschedule or stop timer */
816	if (w->repeat)	1173	if (w->repeat)
817	{	1174	{
818	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1175	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1176
819	w->at = mn_now + w->repeat;	1177	((WT)w)->at += w->repeat;
		1178	if (((WT)w)->at < mn_now)
		1179	((WT)w)->at = mn_now;
		1180
820	downheap ((WT *)timers, timercnt, 0);	1181	downheap ((WT *)timers, timercnt, 0);
821	}	1182	}
822	else	1183	else
823	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1184	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
824		1185
825	event (EV_A_ (W)w, EV_TIMEOUT);	1186	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
826	}	1187	}
827	}	1188	}
828		1189
829	static void	1190	#if EV_PERIODIC_ENABLE
		1191	void inline_size
830	periodics_reify (EV_P)	1192	periodics_reify (EV_P)
831	{	1193	{
832	while (periodiccnt && periodics [0]->at <= rt_now)	1194	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
833	{	1195	{
834	struct ev_periodic *w = periodics [0];	1196	ev_periodic *w = periodics [0];
835		1197
836	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1198	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
837		1199
838	/* first reschedule or stop timer */	1200	/* first reschedule or stop timer */
839	if (w->interval)	1201	if (w->reschedule_cb)
840	{	1202	{
		1203	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1204	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1205	downheap ((WT *)periodics, periodiccnt, 0);
		1206	}
		1207	else if (w->interval)
		1208	{
841	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1209	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
842	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1210	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
843	downheap ((WT *)periodics, periodiccnt, 0);	1211	downheap ((WT *)periodics, periodiccnt, 0);
844	}	1212	}
845	else	1213	else
846	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1214	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
847		1215
848	event (EV_A_ (W)w, EV_PERIODIC);	1216	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
849	}	1217	}
850	}	1218	}
851		1219
852	static void	1220	static void noinline
853	periodics_reschedule (EV_P)	1221	periodics_reschedule (EV_P)
854	{	1222	{
855	int i;	1223	int i;
856		1224
857	/* adjust periodics after time jump */	1225	/* adjust periodics after time jump */
858	for (i = 0; i < periodiccnt; ++i)	1226	for (i = 0; i < periodiccnt; ++i)
859	{	1227	{
860	struct ev_periodic *w = periodics [i];	1228	ev_periodic *w = periodics [i];
861		1229
		1230	if (w->reschedule_cb)
		1231	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
862	if (w->interval)	1232	else if (w->interval)
863	{
864	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1233	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
865
866	if (fabs (diff) >= 1e-4)
867	{
868	ev_periodic_stop (EV_A_ w);
869	ev_periodic_start (EV_A_ w);
870
871	i = 0; /* restart loop, inefficient, but time jumps should be rare */
872	}
873	}
874	}	1234	}
875	}
876		1235
877	inline int	1236	/* now rebuild the heap */
		1237	for (i = periodiccnt >> 1; i--; )
		1238	downheap ((WT *)periodics, periodiccnt, i);
		1239	}
		1240	#endif
		1241
		1242	int inline_size
878	time_update_monotonic (EV_P)	1243	time_update_monotonic (EV_P)
879	{	1244	{
880	mn_now = get_clock ();	1245	mn_now = get_clock ();
881		1246
882	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1247	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
883	{	1248	{
884	rt_now = rtmn_diff + mn_now;	1249	ev_rt_now = rtmn_diff + mn_now;
885	return 0;	1250	return 0;
886	}	1251	}
887	else	1252	else
888	{	1253	{
889	now_floor = mn_now;	1254	now_floor = mn_now;
890	rt_now = ev_time ();	1255	ev_rt_now = ev_time ();
891	return 1;	1256	return 1;
892	}	1257	}
893	}	1258	}
894		1259
895	static void	1260	void inline_size
896	time_update (EV_P)	1261	time_update (EV_P)
897	{	1262	{
898	int i;	1263	int i;
899		1264
900	#if EV_USE_MONOTONIC	1265	#if EV_USE_MONOTONIC
…		…
902	{	1267	{
903	if (time_update_monotonic (EV_A))	1268	if (time_update_monotonic (EV_A))
904	{	1269	{
905	ev_tstamp odiff = rtmn_diff;	1270	ev_tstamp odiff = rtmn_diff;
906		1271
907	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1272	/* loop a few times, before making important decisions.
		1273	* on the choice of "4": one iteration isn't enough,
		1274	* in case we get preempted during the calls to
		1275	* ev_time and get_clock. a second call is almost guarenteed
		1276	* to succeed in that case, though. and looping a few more times
		1277	* doesn't hurt either as we only do this on time-jumps or
		1278	* in the unlikely event of getting preempted here.
		1279	*/
		1280	for (i = 4; --i; )
908	{	1281	{
909	rtmn_diff = rt_now - mn_now;	1282	rtmn_diff = ev_rt_now - mn_now;
910		1283
911	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1284	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
912	return; /* all is well */	1285	return; /* all is well */
913		1286
914	rt_now = ev_time ();	1287	ev_rt_now = ev_time ();
915	mn_now = get_clock ();	1288	mn_now = get_clock ();
916	now_floor = mn_now;	1289	now_floor = mn_now;
917	}	1290	}
918		1291
		1292	# if EV_PERIODIC_ENABLE
919	periodics_reschedule (EV_A);	1293	periodics_reschedule (EV_A);
		1294	# endif
920	/* no timer adjustment, as the monotonic clock doesn't jump */	1295	/* no timer adjustment, as the monotonic clock doesn't jump */
921	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1296	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
922	}	1297	}
923	}	1298	}
924	else	1299	else
925	#endif	1300	#endif
926	{	1301	{
927	rt_now = ev_time ();	1302	ev_rt_now = ev_time ();
928		1303
929	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1304	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
930	{	1305	{
		1306	#if EV_PERIODIC_ENABLE
931	periodics_reschedule (EV_A);	1307	periodics_reschedule (EV_A);
		1308	#endif
932		1309
933	/* adjust timers. this is easy, as the offset is the same for all */	1310	/* adjust timers. this is easy, as the offset is the same for all */
934	for (i = 0; i < timercnt; ++i)	1311	for (i = 0; i < timercnt; ++i)
935	timers [i]->at += rt_now - mn_now;	1312	((WT)timers [i])->at += ev_rt_now - mn_now;
936	}	1313	}
937		1314
938	mn_now = rt_now;	1315	mn_now = ev_rt_now;
939	}	1316	}
940	}	1317	}
941		1318
942	void	1319	void
943	ev_ref (EV_P)	1320	ev_ref (EV_P)
…		…
954	static int loop_done;	1331	static int loop_done;
955		1332
956	void	1333	void
957	ev_loop (EV_P_ int flags)	1334	ev_loop (EV_P_ int flags)
958	{	1335	{
959	double block;
960	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1336	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1337	? EVUNLOOP_ONE
		1338	: EVUNLOOP_CANCEL;
961		1339
962	do	1340	while (activecnt)
963	{	1341	{
		1342	/* we might have forked, so reify kernel state if necessary */
		1343	#if EV_FORK_ENABLE
		1344	if (expect_false (postfork))
		1345	if (forkcnt)
		1346	{
		1347	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1348	call_pending (EV_A);
		1349	}
		1350	#endif
		1351
964	/* queue check watchers (and execute them) */	1352	/* queue check watchers (and execute them) */
965	if (expect_false (preparecnt))	1353	if (expect_false (preparecnt))
966	{	1354	{
967	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1355	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
968	call_pending (EV_A);	1356	call_pending (EV_A);
969	}	1357	}
970		1358
		1359	/* we might have forked, so reify kernel state if necessary */
		1360	if (expect_false (postfork))
		1361	loop_fork (EV_A);
		1362
971	/* update fd-related kernel structures */	1363	/* update fd-related kernel structures */
972	fd_reify (EV_A);	1364	fd_reify (EV_A);
973		1365
974	/* calculate blocking time */	1366	/* calculate blocking time */
		1367	{
		1368	double block;
975		1369
976	/* we only need this for !monotonic clockor timers, but as we basically	1370	if (flags & EVLOOP_NONBLOCK || idlecnt)
977	always have timers, we just calculate it always */	1371	block = 0.; /* do not block at all */
		1372	else
		1373	{
		1374	/* update time to cancel out callback processing overhead */
978	#if EV_USE_MONOTONIC	1375	#if EV_USE_MONOTONIC
979	if (expect_true (have_monotonic))	1376	if (expect_true (have_monotonic))
980	time_update_monotonic (EV_A);	1377	time_update_monotonic (EV_A);
981	else	1378	else
982	#endif	1379	#endif
983	{	1380	{
984	rt_now = ev_time ();	1381	ev_rt_now = ev_time ();
985	mn_now = rt_now;	1382	mn_now = ev_rt_now;
986	}	1383	}
987		1384
988	if (flags & EVLOOP_NONBLOCK || idlecnt)
989	block = 0.;
990	else
991	{
992	block = MAX_BLOCKTIME;	1385	block = MAX_BLOCKTIME;
993		1386
994	if (timercnt)	1387	if (timercnt)
995	{	1388	{
996	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1389	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
997	if (block > to) block = to;	1390	if (block > to) block = to;
998	}	1391	}
999		1392
		1393	#if EV_PERIODIC_ENABLE
1000	if (periodiccnt)	1394	if (periodiccnt)
1001	{	1395	{
1002	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1396	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1003	if (block > to) block = to;	1397	if (block > to) block = to;
1004	}	1398	}
		1399	#endif
1005		1400
1006	if (block < 0.) block = 0.;	1401	if (expect_false (block < 0.)) block = 0.;
1007	}	1402	}
1008		1403
1009	method_poll (EV_A_ block);	1404	backend_poll (EV_A_ block);
		1405	}
1010		1406
1011	/* update rt_now, do magic */	1407	/* update ev_rt_now, do magic */
1012	time_update (EV_A);	1408	time_update (EV_A);
1013		1409
1014	/* queue pending timers and reschedule them */	1410	/* queue pending timers and reschedule them */
1015	timers_reify (EV_A); /* relative timers called last */	1411	timers_reify (EV_A); /* relative timers called last */
		1412	#if EV_PERIODIC_ENABLE
1016	periodics_reify (EV_A); /* absolute timers called first */	1413	periodics_reify (EV_A); /* absolute timers called first */
		1414	#endif
1017		1415
1018	/* queue idle watchers unless io or timers are pending */	1416	/* queue idle watchers unless other events are pending */
1019	if (!pendingcnt)	1417	if (idlecnt && !any_pending (EV_A))
1020	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1418	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1021		1419
1022	/* queue check watchers, to be executed first */	1420	/* queue check watchers, to be executed first */
1023	if (checkcnt)	1421	if (expect_false (checkcnt))
1024	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1422	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1025		1423
1026	call_pending (EV_A);	1424	call_pending (EV_A);
1027	}
1028	while (activecnt && !loop_done);
1029		1425
1030	if (loop_done != 2)	1426	if (expect_false (loop_done))
1031	loop_done = 0;	1427	break;
		1428	}
		1429
		1430	if (loop_done == EVUNLOOP_ONE)
		1431	loop_done = EVUNLOOP_CANCEL;
1032	}	1432	}
1033		1433
1034	void	1434	void
1035	ev_unloop (EV_P_ int how)	1435	ev_unloop (EV_P_ int how)
1036	{	1436	{
1037	loop_done = how;	1437	loop_done = how;
1038	}	1438	}
1039		1439
1040	/*****************************************************************************/	1440	/*****************************************************************************/
1041		1441
1042	inline void	1442	void inline_size
1043	wlist_add (WL *head, WL elem)	1443	wlist_add (WL *head, WL elem)
1044	{	1444	{
1045	elem->next = *head;	1445	elem->next = *head;
1046	*head = elem;	1446	*head = elem;
1047	}	1447	}
1048		1448
1049	inline void	1449	void inline_size
1050	wlist_del (WL *head, WL elem)	1450	wlist_del (WL *head, WL elem)
1051	{	1451	{
1052	while (*head)	1452	while (*head)
1053	{	1453	{
1054	if (*head == elem)	1454	if (*head == elem)
…		…
1059		1459
1060	head = &(*head)->next;	1460	head = &(*head)->next;
1061	}	1461	}
1062	}	1462	}
1063		1463
1064	inline void	1464	void inline_speed
1065	ev_clear_pending (EV_P_ W w)	1465	ev_clear_pending (EV_P_ W w)
1066	{	1466	{
1067	if (w->pending)	1467	if (w->pending)
1068	{	1468	{
1069	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1469	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1070	w->pending = 0;	1470	w->pending = 0;
1071	}	1471	}
1072	}	1472	}
1073		1473
1074	inline void	1474	void inline_speed
1075	ev_start (EV_P_ W w, int active)	1475	ev_start (EV_P_ W w, int active)
1076	{	1476	{
1077	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1477	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1078	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1478	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1079		1479
1080	w->active = active;	1480	w->active = active;
1081	ev_ref (EV_A);	1481	ev_ref (EV_A);
1082	}	1482	}
1083		1483
1084	inline void	1484	void inline_size
1085	ev_stop (EV_P_ W w)	1485	ev_stop (EV_P_ W w)
1086	{	1486	{
1087	ev_unref (EV_A);	1487	ev_unref (EV_A);
1088	w->active = 0;	1488	w->active = 0;
1089	}	1489	}
1090		1490
1091	/*****************************************************************************/	1491	/*****************************************************************************/
1092		1492
1093	void	1493	void
1094	ev_io_start (EV_P_ struct ev_io *w)	1494	ev_io_start (EV_P_ ev_io *w)
1095	{	1495	{
1096	int fd = w->fd;	1496	int fd = w->fd;
1097		1497
1098	if (ev_is_active (w))	1498	if (expect_false (ev_is_active (w)))
1099	return;	1499	return;
1100		1500
1101	assert (("ev_io_start called with negative fd", fd >= 0));	1501	assert (("ev_io_start called with negative fd", fd >= 0));
1102		1502
1103	ev_start (EV_A_ (W)w, 1);	1503	ev_start (EV_A_ (W)w, 1);
1104	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1504	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1105	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1505	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1106		1506
1107	fd_change (EV_A_ fd);	1507	fd_change (EV_A_ fd);
1108	}	1508	}
1109		1509
1110	void	1510	void
1111	ev_io_stop (EV_P_ struct ev_io *w)	1511	ev_io_stop (EV_P_ ev_io *w)
1112	{	1512	{
1113	ev_clear_pending (EV_A_ (W)w);	1513	ev_clear_pending (EV_A_ (W)w);
1114	if (!ev_is_active (w))	1514	if (expect_false (!ev_is_active (w)))
1115	return;	1515	return;
		1516
		1517	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1116		1518
1117	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1519	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1118	ev_stop (EV_A_ (W)w);	1520	ev_stop (EV_A_ (W)w);
1119		1521
1120	fd_change (EV_A_ w->fd);	1522	fd_change (EV_A_ w->fd);
1121	}	1523	}
1122		1524
1123	void	1525	void
1124	ev_timer_start (EV_P_ struct ev_timer *w)	1526	ev_timer_start (EV_P_ ev_timer *w)
1125	{	1527	{
1126	if (ev_is_active (w))	1528	if (expect_false (ev_is_active (w)))
1127	return;	1529	return;
1128		1530
1129	w->at += mn_now;	1531	((WT)w)->at += mn_now;
1130		1532
1131	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1533	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1132		1534
1133	ev_start (EV_A_ (W)w, ++timercnt);	1535	ev_start (EV_A_ (W)w, ++timercnt);
1134	array_needsize (timers, timermax, timercnt, );	1536	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1135	timers [timercnt - 1] = w;	1537	timers [timercnt - 1] = w;
1136	upheap ((WT *)timers, timercnt - 1);	1538	upheap ((WT *)timers, timercnt - 1);
1137		1539
		1540	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
		1541	}
		1542
		1543	void
		1544	ev_timer_stop (EV_P_ ev_timer *w)
		1545	{
		1546	ev_clear_pending (EV_A_ (W)w);
		1547	if (expect_false (!ev_is_active (w)))
		1548	return;
		1549
1138	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1550	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1139	}
1140		1551
1141	void	1552	{
1142	ev_timer_stop (EV_P_ struct ev_timer *w)	1553	int active = ((W)w)->active;
1143	{
1144	ev_clear_pending (EV_A_ (W)w);
1145	if (!ev_is_active (w))
1146	return;
1147		1554
1148	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1555	if (expect_true (--active < --timercnt))
1149
1150	if (((W)w)->active < timercnt--)
1151	{	1556	{
1152	timers [((W)w)->active - 1] = timers [timercnt];	1557	timers [active] = timers [timercnt];
1153	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1558	adjustheap ((WT *)timers, timercnt, active);
1154	}	1559	}
		1560	}
1155		1561
1156	w->at = w->repeat;	1562	((WT)w)->at -= mn_now;
1157		1563
1158	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1159	}	1565	}
1160		1566
1161	void	1567	void
1162	ev_timer_again (EV_P_ struct ev_timer *w)	1568	ev_timer_again (EV_P_ ev_timer *w)
1163	{	1569	{
1164	if (ev_is_active (w))	1570	if (ev_is_active (w))
1165	{	1571	{
1166	if (w->repeat)	1572	if (w->repeat)
1167	{	1573	{
1168	w->at = mn_now + w->repeat;	1574	((WT)w)->at = mn_now + w->repeat;
1169	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1575	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1170	}	1576	}
1171	else	1577	else
1172	ev_timer_stop (EV_A_ w);	1578	ev_timer_stop (EV_A_ w);
1173	}	1579	}
1174	else if (w->repeat)	1580	else if (w->repeat)
		1581	{
		1582	w->at = w->repeat;
1175	ev_timer_start (EV_A_ w);	1583	ev_timer_start (EV_A_ w);
		1584	}
1176	}	1585	}
1177		1586
		1587	#if EV_PERIODIC_ENABLE
1178	void	1588	void
1179	ev_periodic_start (EV_P_ struct ev_periodic *w)	1589	ev_periodic_start (EV_P_ ev_periodic *w)
1180	{	1590	{
1181	if (ev_is_active (w))	1591	if (expect_false (ev_is_active (w)))
1182	return;	1592	return;
1183		1593
		1594	if (w->reschedule_cb)
		1595	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1596	else if (w->interval)
		1597	{
1184	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1598	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1185
1186	/* this formula differs from the one in periodic_reify because we do not always round up */	1599	/* this formula differs from the one in periodic_reify because we do not always round up */
1187	if (w->interval)
1188	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1600	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1601	}
1189		1602
1190	ev_start (EV_A_ (W)w, ++periodiccnt);	1603	ev_start (EV_A_ (W)w, ++periodiccnt);
1191	array_needsize (periodics, periodicmax, periodiccnt, );	1604	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1192	periodics [periodiccnt - 1] = w;	1605	periodics [periodiccnt - 1] = w;
1193	upheap ((WT *)periodics, periodiccnt - 1);	1606	upheap ((WT *)periodics, periodiccnt - 1);
1194		1607
		1608	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
		1609	}
		1610
		1611	void
		1612	ev_periodic_stop (EV_P_ ev_periodic *w)
		1613	{
		1614	ev_clear_pending (EV_A_ (W)w);
		1615	if (expect_false (!ev_is_active (w)))
		1616	return;
		1617
1195	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1618	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1196	}
1197		1619
1198	void	1620	{
1199	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1621	int active = ((W)w)->active;
1200	{
1201	ev_clear_pending (EV_A_ (W)w);
1202	if (!ev_is_active (w))
1203	return;
1204		1622
1205	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1623	if (expect_true (--active < --periodiccnt))
1206
1207	if (((W)w)->active < periodiccnt--)
1208	{	1624	{
1209	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1625	periodics [active] = periodics [periodiccnt];
1210	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1626	adjustheap ((WT *)periodics, periodiccnt, active);
1211	}	1627	}
		1628	}
1212		1629
1213	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1214	}	1631	}
1215		1632
1216	void	1633	void
1217	ev_idle_start (EV_P_ struct ev_idle *w)	1634	ev_periodic_again (EV_P_ ev_periodic *w)
1218	{	1635	{
1219	if (ev_is_active (w))	1636	/* TODO: use adjustheap and recalculation */
1220	return;
1221
1222	ev_start (EV_A_ (W)w, ++idlecnt);
1223	array_needsize (idles, idlemax, idlecnt, );
1224	idles [idlecnt - 1] = w;
1225	}
1226
1227	void
1228	ev_idle_stop (EV_P_ struct ev_idle *w)
1229	{
1230	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))
1232	return;
1233
1234	idles [((W)w)->active - 1] = idles [--idlecnt];
1235	ev_stop (EV_A_ (W)w);	1637	ev_periodic_stop (EV_A_ w);
		1638	ev_periodic_start (EV_A_ w);
1236	}	1639	}
1237		1640	#endif
1238	void
1239	ev_prepare_start (EV_P_ struct ev_prepare *w)
1240	{
1241	if (ev_is_active (w))
1242	return;
1243
1244	ev_start (EV_A_ (W)w, ++preparecnt);
1245	array_needsize (prepares, preparemax, preparecnt, );
1246	prepares [preparecnt - 1] = w;
1247	}
1248
1249	void
1250	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1251	{
1252	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))
1254	return;
1255
1256	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1257	ev_stop (EV_A_ (W)w);
1258	}
1259
1260	void
1261	ev_check_start (EV_P_ struct ev_check *w)
1262	{
1263	if (ev_is_active (w))
1264	return;
1265
1266	ev_start (EV_A_ (W)w, ++checkcnt);
1267	array_needsize (checks, checkmax, checkcnt, );
1268	checks [checkcnt - 1] = w;
1269	}
1270
1271	void
1272	ev_check_stop (EV_P_ struct ev_check *w)
1273	{
1274	ev_clear_pending (EV_A_ (W)w);
1275	if (ev_is_active (w))
1276	return;
1277
1278	checks [((W)w)->active - 1] = checks [--checkcnt];
1279	ev_stop (EV_A_ (W)w);
1280	}
1281		1641
1282	#ifndef SA_RESTART	1642	#ifndef SA_RESTART
1283	# define SA_RESTART 0	1643	# define SA_RESTART 0
1284	#endif	1644	#endif
1285		1645
1286	void	1646	void
1287	ev_signal_start (EV_P_ struct ev_signal *w)	1647	ev_signal_start (EV_P_ ev_signal *w)
1288	{	1648	{
1289	#if EV_MULTIPLICITY	1649	#if EV_MULTIPLICITY
1290	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1650	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1291	#endif	1651	#endif
1292	if (ev_is_active (w))	1652	if (expect_false (ev_is_active (w)))
1293	return;	1653	return;
1294		1654
1295	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1655	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1296		1656
1297	ev_start (EV_A_ (W)w, 1);	1657	ev_start (EV_A_ (W)w, 1);
1298	array_needsize (signals, signalmax, w->signum, signals_init);	1658	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1299	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1659	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1300		1660
1301	if (!w->next)	1661	if (!((WL)w)->next)
1302	{	1662	{
		1663	#if _WIN32
		1664	signal (w->signum, sighandler);
		1665	#else
1303	struct sigaction sa;	1666	struct sigaction sa;
1304	sa.sa_handler = sighandler;	1667	sa.sa_handler = sighandler;
1305	sigfillset (&sa.sa_mask);	1668	sigfillset (&sa.sa_mask);
1306	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1669	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1307	sigaction (w->signum, &sa, 0);	1670	sigaction (w->signum, &sa, 0);
		1671	#endif
1308	}	1672	}
1309	}	1673	}
1310		1674
1311	void	1675	void
1312	ev_signal_stop (EV_P_ struct ev_signal *w)	1676	ev_signal_stop (EV_P_ ev_signal *w)
1313	{	1677	{
1314	ev_clear_pending (EV_A_ (W)w);	1678	ev_clear_pending (EV_A_ (W)w);
1315	if (!ev_is_active (w))	1679	if (expect_false (!ev_is_active (w)))
1316	return;	1680	return;
1317		1681
1318	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1682	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1319	ev_stop (EV_A_ (W)w);	1683	ev_stop (EV_A_ (W)w);
1320		1684
1321	if (!signals [w->signum - 1].head)	1685	if (!signals [w->signum - 1].head)
1322	signal (w->signum, SIG_DFL);	1686	signal (w->signum, SIG_DFL);
1323	}	1687	}
1324		1688
1325	void	1689	void
1326	ev_child_start (EV_P_ struct ev_child *w)	1690	ev_child_start (EV_P_ ev_child *w)
1327	{	1691	{
1328	#if EV_MULTIPLICITY	1692	#if EV_MULTIPLICITY
1329	assert (("child watchers are only supported in the default loop", loop == default_loop));	1693	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1330	#endif	1694	#endif
1331	if (ev_is_active (w))	1695	if (expect_false (ev_is_active (w)))
1332	return;	1696	return;
1333		1697
1334	ev_start (EV_A_ (W)w, 1);	1698	ev_start (EV_A_ (W)w, 1);
1335	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1699	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1336	}	1700	}
1337		1701
1338	void	1702	void
1339	ev_child_stop (EV_P_ struct ev_child *w)	1703	ev_child_stop (EV_P_ ev_child *w)
1340	{	1704	{
1341	ev_clear_pending (EV_A_ (W)w);	1705	ev_clear_pending (EV_A_ (W)w);
1342	if (ev_is_active (w))	1706	if (expect_false (!ev_is_active (w)))
1343	return;	1707	return;
1344		1708
1345	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1709	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1346	ev_stop (EV_A_ (W)w);	1710	ev_stop (EV_A_ (W)w);
1347	}	1711	}
1348		1712
		1713	#if EV_STAT_ENABLE
		1714
		1715	# ifdef _WIN32
		1716	# undef lstat
		1717	# define lstat(a,b) _stati64 (a,b)
		1718	# endif
		1719
		1720	#define DEF_STAT_INTERVAL 5.0074891
		1721	#define MIN_STAT_INTERVAL 0.1074891
		1722
		1723	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1724
		1725	#if EV_USE_INOTIFY
		1726	# define EV_INOTIFY_BUFSIZE 8192
		1727
		1728	static void noinline
		1729	infy_add (EV_P_ ev_stat *w)
		1730	{
		1731	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);
		1732
		1733	if (w->wd < 0)
		1734	{
		1735	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1736
		1737	/* monitor some parent directory for speedup hints */
		1738	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1739	{
		1740	char path [4096];
		1741	strcpy (path, w->path);
		1742
		1743	do
		1744	{
		1745	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1746	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1747
		1748	char *pend = strrchr (path, '/');
		1749
		1750	if (!pend)
		1751	break; /* whoops, no '/', complain to your admin */
		1752
		1753	*pend = 0;
		1754	w->wd = inotify_add_watch (fs_fd, path, mask);
		1755	}
		1756	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1757	}
		1758	}
		1759	else
		1760	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1761
		1762	if (w->wd >= 0)
		1763	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1764	}
		1765
		1766	static void noinline
		1767	infy_del (EV_P_ ev_stat *w)
		1768	{
		1769	int slot;
		1770	int wd = w->wd;
		1771
		1772	if (wd < 0)
		1773	return;
		1774
		1775	w->wd = -2;
		1776	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1777	wlist_del (&fs_hash [slot].head, (WL)w);
		1778
		1779	/* remove this watcher, if others are watching it, they will rearm */
		1780	inotify_rm_watch (fs_fd, wd);
		1781	}
		1782
		1783	static void noinline
		1784	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1785	{
		1786	if (slot < 0)
		1787	/* overflow, need to check for all hahs slots */
		1788	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1789	infy_wd (EV_A_ slot, wd, ev);
		1790	else
		1791	{
		1792	WL w_;
		1793
		1794	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1795	{
		1796	ev_stat *w = (ev_stat *)w_;
		1797	w_ = w_->next; /* lets us remove this watcher and all before it */
		1798
		1799	if (w->wd == wd || wd == -1)
		1800	{
		1801	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1802	{
		1803	w->wd = -1;
		1804	infy_add (EV_A_ w); /* re-add, no matter what */
		1805	}
		1806
		1807	stat_timer_cb (EV_A_ &w->timer, 0);
		1808	}
		1809	}
		1810	}
		1811	}
		1812
		1813	static void
		1814	infy_cb (EV_P_ ev_io *w, int revents)
		1815	{
		1816	char buf [EV_INOTIFY_BUFSIZE];
		1817	struct inotify_event *ev = (struct inotify_event *)buf;
		1818	int ofs;
		1819	int len = read (fs_fd, buf, sizeof (buf));
		1820
		1821	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1822	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1823	}
		1824
		1825	void inline_size
		1826	infy_init (EV_P)
		1827	{
		1828	if (fs_fd != -2)
		1829	return;
		1830
		1831	fs_fd = inotify_init ();
		1832
		1833	if (fs_fd >= 0)
		1834	{
		1835	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1836	ev_set_priority (&fs_w, EV_MAXPRI);
		1837	ev_io_start (EV_A_ &fs_w);
		1838	}
		1839	}
		1840
		1841	void inline_size
		1842	infy_fork (EV_P)
		1843	{
		1844	int slot;
		1845
		1846	if (fs_fd < 0)
		1847	return;
		1848
		1849	close (fs_fd);
		1850	fs_fd = inotify_init ();
		1851
		1852	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1853	{
		1854	WL w_ = fs_hash [slot].head;
		1855	fs_hash [slot].head = 0;
		1856
		1857	while (w_)
		1858	{
		1859	ev_stat *w = (ev_stat *)w_;
		1860	w_ = w_->next; /* lets us add this watcher */
		1861
		1862	w->wd = -1;
		1863
		1864	if (fs_fd >= 0)
		1865	infy_add (EV_A_ w); /* re-add, no matter what */
		1866	else
		1867	ev_timer_start (EV_A_ &w->timer);
		1868	}
		1869
		1870	}
		1871	}
		1872
		1873	#endif
		1874
		1875	void
		1876	ev_stat_stat (EV_P_ ev_stat *w)
		1877	{
		1878	if (lstat (w->path, &w->attr) < 0)
		1879	w->attr.st_nlink = 0;
		1880	else if (!w->attr.st_nlink)
		1881	w->attr.st_nlink = 1;
		1882	}
		1883
		1884	void noinline
		1885	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1886	{
		1887	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		1888
		1889	/* we copy this here each the time so that */
		1890	/* prev has the old value when the callback gets invoked */
		1891	w->prev = w->attr;
		1892	ev_stat_stat (EV_A_ w);
		1893
		1894	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
		1895	{
		1896	#if EV_USE_INOTIFY
		1897	infy_del (EV_A_ w);
		1898	infy_add (EV_A_ w);
		1899	ev_stat_stat (EV_A_ w); /* avoid race... */
		1900	#endif
		1901
		1902	ev_feed_event (EV_A_ w, EV_STAT);
		1903	}
		1904	}
		1905
		1906	void
		1907	ev_stat_start (EV_P_ ev_stat *w)
		1908	{
		1909	if (expect_false (ev_is_active (w)))
		1910	return;
		1911
		1912	/* since we use memcmp, we need to clear any padding data etc. */
		1913	memset (&w->prev, 0, sizeof (ev_statdata));
		1914	memset (&w->attr, 0, sizeof (ev_statdata));
		1915
		1916	ev_stat_stat (EV_A_ w);
		1917
		1918	if (w->interval < MIN_STAT_INTERVAL)
		1919	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		1920
		1921	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1922	ev_set_priority (&w->timer, ev_priority (w));
		1923
		1924	#if EV_USE_INOTIFY
		1925	infy_init (EV_A);
		1926
		1927	if (fs_fd >= 0)
		1928	infy_add (EV_A_ w);
		1929	else
		1930	#endif
		1931	ev_timer_start (EV_A_ &w->timer);
		1932
		1933	ev_start (EV_A_ (W)w, 1);
		1934	}
		1935
		1936	void
		1937	ev_stat_stop (EV_P_ ev_stat *w)
		1938	{
		1939	ev_clear_pending (EV_A_ (W)w);
		1940	if (expect_false (!ev_is_active (w)))
		1941	return;
		1942
		1943	#if EV_USE_INOTIFY
		1944	infy_del (EV_A_ w);
		1945	#endif
		1946	ev_timer_stop (EV_A_ &w->timer);
		1947
		1948	ev_stop (EV_A_ (W)w);
		1949	}
		1950	#endif
		1951
		1952	void
		1953	ev_idle_start (EV_P_ ev_idle *w)
		1954	{
		1955	if (expect_false (ev_is_active (w)))
		1956	return;
		1957
		1958	ev_start (EV_A_ (W)w, ++idlecnt);
		1959	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1960	idles [idlecnt - 1] = w;
		1961	}
		1962
		1963	void
		1964	ev_idle_stop (EV_P_ ev_idle *w)
		1965	{
		1966	ev_clear_pending (EV_A_ (W)w);
		1967	if (expect_false (!ev_is_active (w)))
		1968	return;
		1969
		1970	{
		1971	int active = ((W)w)->active;
		1972	idles [active - 1] = idles [--idlecnt];
		1973	((W)idles [active - 1])->active = active;
		1974	}
		1975
		1976	ev_stop (EV_A_ (W)w);
		1977	}
		1978
		1979	void
		1980	ev_prepare_start (EV_P_ ev_prepare *w)
		1981	{
		1982	if (expect_false (ev_is_active (w)))
		1983	return;
		1984
		1985	ev_start (EV_A_ (W)w, ++preparecnt);
		1986	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1987	prepares [preparecnt - 1] = w;
		1988	}
		1989
		1990	void
		1991	ev_prepare_stop (EV_P_ ev_prepare *w)
		1992	{
		1993	ev_clear_pending (EV_A_ (W)w);
		1994	if (expect_false (!ev_is_active (w)))
		1995	return;
		1996
		1997	{
		1998	int active = ((W)w)->active;
		1999	prepares [active - 1] = prepares [--preparecnt];
		2000	((W)prepares [active - 1])->active = active;
		2001	}
		2002
		2003	ev_stop (EV_A_ (W)w);
		2004	}
		2005
		2006	void
		2007	ev_check_start (EV_P_ ev_check *w)
		2008	{
		2009	if (expect_false (ev_is_active (w)))
		2010	return;
		2011
		2012	ev_start (EV_A_ (W)w, ++checkcnt);
		2013	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2014	checks [checkcnt - 1] = w;
		2015	}
		2016
		2017	void
		2018	ev_check_stop (EV_P_ ev_check *w)
		2019	{
		2020	ev_clear_pending (EV_A_ (W)w);
		2021	if (expect_false (!ev_is_active (w)))
		2022	return;
		2023
		2024	{
		2025	int active = ((W)w)->active;
		2026	checks [active - 1] = checks [--checkcnt];
		2027	((W)checks [active - 1])->active = active;
		2028	}
		2029
		2030	ev_stop (EV_A_ (W)w);
		2031	}
		2032
		2033	#if EV_EMBED_ENABLE
		2034	void noinline
		2035	ev_embed_sweep (EV_P_ ev_embed *w)
		2036	{
		2037	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2038	}
		2039
		2040	static void
		2041	embed_cb (EV_P_ ev_io *io, int revents)
		2042	{
		2043	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2044
		2045	if (ev_cb (w))
		2046	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2047	else
		2048	ev_embed_sweep (loop, w);
		2049	}
		2050
		2051	void
		2052	ev_embed_start (EV_P_ ev_embed *w)
		2053	{
		2054	if (expect_false (ev_is_active (w)))
		2055	return;
		2056
		2057	{
		2058	struct ev_loop *loop = w->loop;
		2059	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2060	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2061	}
		2062
		2063	ev_set_priority (&w->io, ev_priority (w));
		2064	ev_io_start (EV_A_ &w->io);
		2065
		2066	ev_start (EV_A_ (W)w, 1);
		2067	}
		2068
		2069	void
		2070	ev_embed_stop (EV_P_ ev_embed *w)
		2071	{
		2072	ev_clear_pending (EV_A_ (W)w);
		2073	if (expect_false (!ev_is_active (w)))
		2074	return;
		2075
		2076	ev_io_stop (EV_A_ &w->io);
		2077
		2078	ev_stop (EV_A_ (W)w);
		2079	}
		2080	#endif
		2081
		2082	#if EV_FORK_ENABLE
		2083	void
		2084	ev_fork_start (EV_P_ ev_fork *w)
		2085	{
		2086	if (expect_false (ev_is_active (w)))
		2087	return;
		2088
		2089	ev_start (EV_A_ (W)w, ++forkcnt);
		2090	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2091	forks [forkcnt - 1] = w;
		2092	}
		2093
		2094	void
		2095	ev_fork_stop (EV_P_ ev_fork *w)
		2096	{
		2097	ev_clear_pending (EV_A_ (W)w);
		2098	if (expect_false (!ev_is_active (w)))
		2099	return;
		2100
		2101	{
		2102	int active = ((W)w)->active;
		2103	forks [active - 1] = forks [--forkcnt];
		2104	((W)forks [active - 1])->active = active;
		2105	}
		2106
		2107	ev_stop (EV_A_ (W)w);
		2108	}
		2109	#endif
		2110
1349	/*****************************************************************************/	2111	/*****************************************************************************/
1350		2112
1351	struct ev_once	2113	struct ev_once
1352	{	2114	{
1353	struct ev_io io;	2115	ev_io io;
1354	struct ev_timer to;	2116	ev_timer to;
1355	void (*cb)(int revents, void *arg);	2117	void (*cb)(int revents, void *arg);
1356	void *arg;	2118	void *arg;
1357	};	2119	};
1358		2120
1359	static void	2121	static void
…		…
1362	void (*cb)(int revents, void *arg) = once->cb;	2124	void (*cb)(int revents, void *arg) = once->cb;
1363	void *arg = once->arg;	2125	void *arg = once->arg;
1364		2126
1365	ev_io_stop (EV_A_ &once->io);	2127	ev_io_stop (EV_A_ &once->io);
1366	ev_timer_stop (EV_A_ &once->to);	2128	ev_timer_stop (EV_A_ &once->to);
1367	free (once);	2129	ev_free (once);
1368		2130
1369	cb (revents, arg);	2131	cb (revents, arg);
1370	}	2132	}
1371		2133
1372	static void	2134	static void
1373	once_cb_io (EV_P_ struct ev_io *w, int revents)	2135	once_cb_io (EV_P_ ev_io *w, int revents)
1374	{	2136	{
1375	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2137	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1376	}	2138	}
1377		2139
1378	static void	2140	static void
1379	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2141	once_cb_to (EV_P_ ev_timer *w, int revents)
1380	{	2142	{
1381	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2143	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1382	}	2144	}
1383		2145
1384	void	2146	void
1385	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	2147	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1386	{	2148	{
1387	struct ev_once *once = malloc (sizeof (struct ev_once));	2149	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1388		2150
1389	if (!once)	2151	if (expect_false (!once))
		2152	{
1390	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	2153	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1391	else	2154	return;
1392	{	2155	}
		2156
1393	once->cb = cb;	2157	once->cb = cb;
1394	once->arg = arg;	2158	once->arg = arg;
1395		2159
1396	ev_watcher_init (&once->io, once_cb_io);	2160	ev_init (&once->io, once_cb_io);
1397	if (fd >= 0)	2161	if (fd >= 0)
1398	{	2162	{
1399	ev_io_set (&once->io, fd, events);	2163	ev_io_set (&once->io, fd, events);
1400	ev_io_start (EV_A_ &once->io);	2164	ev_io_start (EV_A_ &once->io);
1401	}	2165	}
1402		2166
1403	ev_watcher_init (&once->to, once_cb_to);	2167	ev_init (&once->to, once_cb_to);
1404	if (timeout >= 0.)	2168	if (timeout >= 0.)
1405	{	2169	{
1406	ev_timer_set (&once->to, timeout, 0.);	2170	ev_timer_set (&once->to, timeout, 0.);
1407	ev_timer_start (EV_A_ &once->to);	2171	ev_timer_start (EV_A_ &once->to);
1408	}
1409	}	2172	}
1410	}	2173	}
1411		2174
		2175	#ifdef __cplusplus
		2176	}
		2177	#endif
		2178

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