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Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 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
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
41	# endif	59	# endif
42		60
43	# if HAVE_POLL && HAVE_POLL_H	61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
45	# endif	65	# endif
46		66
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
49	# endif	71	# endif
50		72
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
53	# endif	83	# endif
54		84
55	#endif	85	#endif
56		86
57	#include <math.h>	87	#include <math.h>
58	#include <stdlib.h>	88	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	89	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	90	#include <stddef.h>
63		91
64	#include <stdio.h>	92	#include <stdio.h>
65		93
66	#include <assert.h>	94	#include <assert.h>
67	#include <errno.h>	95	#include <errno.h>
68	#include <sys/types.h>	96	#include <sys/types.h>
		97	#include <time.h>
		98
		99	#include <signal.h>
		100
69	#ifndef WIN32	101	#ifndef _WIN32
		102	# include <unistd.h>
		103	# include <sys/time.h>
70	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	110	# endif
72	#include <sys/time.h>	111	#endif
73	#include <time.h>
74		112
75	/**/	113	/**/
76		114
77	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
79	#endif	121	#endif
80		122
81	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
83	#endif	125	#endif
84		126
85	#ifndef EV_USE_POLL	127	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
87	#endif	133	#endif
88		134
89	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
91	#endif	137	#endif
92		138
93	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
95	#endif	141	#endif
96		142
97	#ifndef EV_USE_REALTIME	143	#ifndef EV_USE_PORT
98	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
99	#endif	145	#endif
100		146
101	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
102		154
103	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
104	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
105	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
106	#endif	158	#endif
…		…
108	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
111	#endif	163	#endif
112		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
113	/**/	169	/**/
114		170
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	172	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	173	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	174	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
119		175
		176	#ifdef EV_H
		177	# include EV_H
		178	#else
120	#include "ev.h"	179	# include "ev.h"
		180	#endif
121		181
122	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	184	# define inline static inline
125	#else	185	#else
126	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
127	# define inline static	187	# define inline static
128	#endif	188	#endif
129		189
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
132		192
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
136	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
139		202
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		204
		205	#ifdef _WIN32
		206	# include "ev_win32.c"
		207	#endif
		208
142	/*****************************************************************************/	209	/*****************************************************************************/
143		210
		211	static void (*syserr_cb)(const char *msg);
		212
		213	void ev_set_syserr_cb (void (*cb)(const char *msg))
		214	{
		215	syserr_cb = cb;
		216	}
		217
		218	static void
		219	syserr (const char *msg)
		220	{
		221	if (!msg)
		222	msg = "(libev) system error";
		223
		224	if (syserr_cb)
		225	syserr_cb (msg);
		226	else
		227	{
		228	perror (msg);
		229	abort ();
		230	}
		231	}
		232
		233	static void *(*alloc)(void *ptr, long size);
		234
		235	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		236	{
		237	alloc = cb;
		238	}
		239
		240	static void *
		241	ev_realloc (void *ptr, long size)
		242	{
		243	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		244
		245	if (!ptr && size)
		246	{
		247	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		248	abort ();
		249	}
		250
		251	return ptr;
		252	}
		253
		254	#define ev_malloc(size) ev_realloc (0, (size))
		255	#define ev_free(ptr) ev_realloc ((ptr), 0)
		256
		257	/*****************************************************************************/
		258
144	typedef struct	259	typedef struct
145	{	260	{
146	struct ev_watcher_list *head;	261	WL head;
147	unsigned char events;	262	unsigned char events;
148	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
149	} ANFD;	267	} ANFD;
150		268
151	typedef struct	269	typedef struct
152	{	270	{
153	W w;	271	W w;
154	int events;	272	int events;
155	} ANPENDING;	273	} ANPENDING;
156		274
157	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
158		276
159	struct ev_loop	277	struct ev_loop
160	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	282	#include "ev_vars.h"
163	};
164	# undef VAR	283	#undef VAR
		284	};
165	# include "ev_wrap.h"	285	#include "ev_wrap.h"
		286
		287	static struct ev_loop default_loop_struct;
		288	struct ev_loop *ev_default_loop_ptr;
166		289
167	#else	290	#else
168		291
		292	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	294	#include "ev_vars.h"
171	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
172		298
173	#endif	299	#endif
174		300
175	/*****************************************************************************/	301	/*****************************************************************************/
176		302
177	inline ev_tstamp	303	ev_tstamp
178	ev_time (void)	304	ev_time (void)
179	{	305	{
180	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
181	struct timespec ts;	307	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	327	#endif
202		328
203	return ev_time ();	329	return ev_time ();
204	}	330	}
205		331
		332	#if EV_MULTIPLICITY
206	ev_tstamp	333	ev_tstamp
207	ev_now (EV_P)	334	ev_now (EV_P)
208	{	335	{
209	return rt_now;	336	return ev_rt_now;
210	}	337	}
		338	#endif
211		339
212	#define array_roundsize(base,n) ((n) | 4 & ~3)	340	#define array_roundsize(type,n) (((n) | 4) & ~3)
213		341
214	#define array_needsize(base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
216	{ \	344	{ \
217	int newcnt = cur; \	345	int newcnt = cur; \
218	do \	346	do \
219	{ \	347	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	348	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	349	} \
222	while ((cnt) > newcnt); \	350	while ((cnt) > newcnt); \
223	\	351	\
224	base = realloc (base, sizeof (*base) * (newcnt)); \	352	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
225	init (base + cur, newcnt - cur); \	353	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	354	cur = newcnt; \
227	}	355	}
		356
		357	#define array_slim(type,stem) \
		358	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		359	{ \
		360	stem ## max = array_roundsize (stem ## cnt >> 1); \
		361	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
		362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		363	}
		364
		365	#define array_free(stem, idx) \
		366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		367
229	/*****************************************************************************/	368	/*****************************************************************************/
230		369
231	static void	370	static void
232	anfds_init (ANFD *base, int count)	371	anfds_init (ANFD *base, int count)
…		…
239		378
240	++base;	379	++base;
241	}	380	}
242	}	381	}
243		382
244	static void	383	void
245	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
246	{	385	{
247	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
248	{	389	{
249	pendings [ABSPRI (w)][w->pending - 1].events |= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
250	return;	391	return;
251	}	392	}
252		393
253	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	398	}
258		399
259	static void	400	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	402	{
262	int i;	403	int i;
263		404
264	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
266	}	407	}
267		408
268	static void	409	inline void
269	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
270	{	411	{
271	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	413	struct ev_io *w;
273		414
274	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	415	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
275	{	416	{
276	int ev = w->events & events;	417	int ev = w->events & revents;
277		418
278	if (ev)	419	if (ev)
279	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
280	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
281	}	428	}
282		429
283	/*****************************************************************************/	430	/*****************************************************************************/
284		431
285	static void	432	inline void
286	fd_reify (EV_P)	433	fd_reify (EV_P)
287	{	434	{
288	int i;	435	int i;
289		436
290	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
296	int events = 0;	443	int events = 0;
297		444
298	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	445	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
299	events |= w->events;	446	events |= w->events;
300		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
301	anfd->reify = 0;	457	anfd->reify = 0;
302		458
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	460	anfd->events = events;
307	}
308	}	461	}
309		462
310	fdchangecnt = 0;	463	fdchangecnt = 0;
311	}	464	}
312		465
313	static void	466	static void
314	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
315	{	468	{
316	if (anfds [fd].reify || fdchangecnt < 0)	469	if (expect_false (anfds [fd].reify))
317	return;	470	return;
318		471
319	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
320		473
321	++fdchangecnt;	474	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
323	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
324	}	477	}
325		478
326	static void	479	static void
327	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	482	struct ev_io *w;
330		483
331	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
332	{	485	{
333	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
335	}	488	}
		489	}
		490
		491	inline int
		492	fd_valid (int fd)
		493	{
		494	#ifdef _WIN32
		495	return _get_osfhandle (fd) != -1;
		496	#else
		497	return fcntl (fd, F_GETFD) != -1;
		498	#endif
336	}	499	}
337		500
338	/* called on EBADF to verify fds */	501	/* called on EBADF to verify fds */
339	static void	502	static void
340	fd_ebadf (EV_P)	503	fd_ebadf (EV_P)
341	{	504	{
342	int fd;	505	int fd;
343		506
344	for (fd = 0; fd < anfdmax; ++fd)	507	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	508	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	509	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	510	fd_kill (EV_A_ fd);
348	}	511	}
349		512
350	/* called on ENOMEM in select/poll to kill some fds and retry */	513	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	514	static void
352	fd_enomem (EV_P)	515	fd_enomem (EV_P)
353	{	516	{
354	int fd = anfdmax;	517	int fd;
355		518
356	while (fd--)	519	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	520	if (anfds [fd].events)
358	{	521	{
359	close (fd);
360	fd_kill (EV_A_ fd);	522	fd_kill (EV_A_ fd);
361	return;	523	return;
362	}	524	}
363	}	525	}
364		526
365	/* susually called after fork if method needs to re-arm all fds from scratch */	527	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	528	static void
367	fd_rearm_all (EV_P)	529	fd_rearm_all (EV_P)
368	{	530	{
369	int fd;	531	int fd;
370		532
…		…
385	WT w = heap [k];	547	WT w = heap [k];
386		548
387	while (k && heap [k >> 1]->at > w->at)	549	while (k && heap [k >> 1]->at > w->at)
388	{	550	{
389	heap [k] = heap [k >> 1];	551	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	552	((W)heap [k])->active = k + 1;
391	k >>= 1;	553	k >>= 1;
392	}	554	}
393		555
394	heap [k] = w;	556	heap [k] = w;
395	heap [k]->active = k + 1;	557	((W)heap [k])->active = k + 1;
396		558
397	}	559	}
398		560
399	static void	561	static void
400	downheap (WT *heap, int N, int k)	562	downheap (WT *heap, int N, int k)
…		…
410		572
411	if (w->at <= heap [j]->at)	573	if (w->at <= heap [j]->at)
412	break;	574	break;
413		575
414	heap [k] = heap [j];	576	heap [k] = heap [j];
415	heap [k]->active = k + 1;	577	((W)heap [k])->active = k + 1;
416	k = j;	578	k = j;
417	}	579	}
418		580
419	heap [k] = w;	581	heap [k] = w;
420	heap [k]->active = k + 1;	582	((W)heap [k])->active = k + 1;
		583	}
		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
421	}	590	}
422		591
423	/*****************************************************************************/	592	/*****************************************************************************/
424		593
425	typedef struct	594	typedef struct
426	{	595	{
427	struct ev_watcher_list *head;	596	WL head;
428	sig_atomic_t volatile gotsig;	597	sig_atomic_t volatile gotsig;
429	} ANSIG;	598	} ANSIG;
430		599
431	static ANSIG *signals;	600	static ANSIG *signals;
432	static int signalmax;	601	static int signalmax;
…		…
448	}	617	}
449		618
450	static void	619	static void
451	sighandler (int signum)	620	sighandler (int signum)
452	{	621	{
		622	#if _WIN32
		623	signal (signum, sighandler);
		624	#endif
		625
453	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
454		627
455	if (!gotsig)	628	if (!gotsig)
456	{	629	{
457	int old_errno = errno;	630	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	633	errno = old_errno;
461	}	634	}
462	}	635	}
463		636
		637	void
		638	ev_feed_signal_event (EV_P_ int signum)
		639	{
		640	WL w;
		641
		642	#if EV_MULTIPLICITY
		643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		644	#endif
		645
		646	--signum;
		647
		648	if (signum < 0 || signum >= signalmax)
		649	return;
		650
		651	signals [signum].gotsig = 0;
		652
		653	for (w = signals [signum].head; w; w = w->next)
		654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		655	}
		656
464	static void	657	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	659	{
467	struct ev_watcher_list *w;
468	int signum;	660	int signum;
469		661
470	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	663	gotsig = 0;
472		664
473	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
475	{	667	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	668	}
477		669
478	for (w = signals [signum].head; w; w = w->next)	670	static void
479	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
480	}	672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
481	}	680	}
482		681
483	static void	682	static void
484	siginit (EV_P)	683	siginit (EV_P)
485	{	684	{
486	#ifndef WIN32	685	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
488	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
489
490	/* rather than sort out wether we really need nb, set it */
491	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
492	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
493	#endif
494		687
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	691	}
499		692
500	/*****************************************************************************/	693	/*****************************************************************************/
501		694
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
		696
		697	#ifndef _WIN32
		698
505	static struct ev_signal childev;	699	static struct ev_signal childev;
506		700
507	#ifndef WCONTINUED	701	#ifndef WCONTINUED
508	# define WCONTINUED 0	702	# define WCONTINUED 0
509	#endif	703	#endif
…		…
514	struct ev_child *w;	708	struct ev_child *w;
515		709
516	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)	710	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
517	if (w->pid == pid || !w->pid)	711	if (w->pid == pid || !w->pid)
518	{	712	{
519	w->priority = sw->priority; /* need to do it *now* */	713	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
520	w->rpid = pid;	714	w->rpid = pid;
521	w->rstatus = status;	715	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	717	}
524	}	718	}
525		719
526	static void	720	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	723	int pid, status;
530		724
531	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
532	{	726	{
533	/* make sure we are called again until all childs have been reaped */	727	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		729
536	child_reap (EV_A_ sw, pid, pid, status);	730	child_reap (EV_A_ sw, pid, pid, status);
537	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	732	}
539	}	733	}
540		734
541	#endif	735	#endif
542		736
543	/*****************************************************************************/	737	/*****************************************************************************/
544		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
545	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
546	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
547	#endif	744	#endif
548	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
549	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
569		766
570	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	768	static int
572	enable_secure (void)	769	enable_secure (void)
573	{	770	{
574	#ifdef WIN32	771	#ifdef _WIN32
575	return 0;	772	return 0;
576	#else	773	#else
577	return getuid () != geteuid ()	774	return getuid () != geteuid ()
578	|| getgid () != getegid ();	775	|| getgid () != getegid ();
579	#endif	776	#endif
580	}	777	}
581		778
582	int	779	unsigned int
583	ev_method (EV_P)	780	ev_method (EV_P)
584	{	781	{
585	return method;	782	return method;
586	}	783	}
587		784
588	static void	785	static void
589	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
590	{	787	{
591	if (!method)	788	if (!method)
592	{	789	{
593	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
594	{	791	{
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	794	have_monotonic = 1;
598	}	795	}
599	#endif	796	#endif
600		797
601	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	799	mn_now = get_clock ();
603	now_floor = mn_now;	800	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
605		802
606	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
609	else	805
610	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags |= 0x0000ffff;
611		808
612	method = 0;	809	method = 0;
		810	#if EV_USE_PORT
		811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		812	#endif
613	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
615	#endif	815	#endif
616	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
618	#endif	818	#endif
619	#if EV_USE_POLL	819	#if EV_USE_POLL
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
621	#endif	821	#endif
622	#if EV_USE_SELECT	822	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
624	#endif	824	#endif
625	}
626	}
627		825
628	void	826	ev_init (&sigev, sigcb);
		827	ev_set_priority (&sigev, EV_MAXPRI);
		828	}
		829	}
		830
		831	static void
629	loop_destroy (EV_P)	832	loop_destroy (EV_P)
630	{	833	{
		834	int i;
		835
		836	#if EV_USE_PORT
		837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		838	#endif
631	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	841	#endif
634	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	843	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	847	#endif
640	#if EV_USE_SELECT	848	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	849	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	850	#endif
643		851
		852	for (i = NUMPRI; i--; )
		853	array_free (pending, [i]);
		854
		855	/* have to use the microsoft-never-gets-it-right macro */
		856	array_free (fdchange, EMPTY0);
		857	array_free (timer, EMPTY0);
		858	#if EV_PERIODICS
		859	array_free (periodic, EMPTY0);
		860	#endif
		861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
		864
644	method = 0;	865	method = 0;
645	/*TODO*/
646	}	866	}
647		867
648	void	868	static void
649	loop_fork (EV_P)	869	loop_fork (EV_P)
650	{	870	{
651	/*TODO*/	871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
652	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	879	#endif
655	#if EV_USE_KQUEUE	880
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	881	if (ev_is_active (&sigev))
657	#endif	882	{
		883	/* default loop */
		884
		885	ev_ref (EV_A);
		886	ev_io_stop (EV_A_ &sigev);
		887	close (sigpipe [0]);
		888	close (sigpipe [1]);
		889
		890	while (pipe (sigpipe))
		891	syserr ("(libev) error creating pipe");
		892
		893	siginit (EV_A);
		894	}
		895
		896	postfork = 0;
658	}	897	}
659		898
660	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
661	struct ev_loop *	900	struct ev_loop *
662	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
663	{	902	{
664	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));	903	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
665		904
		905	memset (loop, 0, sizeof (struct ev_loop));
		906
666	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
667		908
668	if (ev_method (EV_A))	909	if (ev_method (EV_A))
669	return loop;	910	return loop;
670		911
671	return 0;	912	return 0;
…		…
673		914
674	void	915	void
675	ev_loop_destroy (EV_P)	916	ev_loop_destroy (EV_P)
676	{	917	{
677	loop_destroy (EV_A);	918	loop_destroy (EV_A);
678	free (loop);	919	ev_free (loop);
679	}	920	}
680		921
681	void	922	void
682	ev_loop_fork (EV_P)	923	ev_loop_fork (EV_P)
683	{	924	{
684	loop_fork (EV_A);	925	postfork = 1;
685	}	926	}
686		927
687	#endif	928	#endif
688		929
689	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
694	#else	933	#else
695	static int default_loop;
696
697	int	934	int
		935	ev_default_loop (unsigned int flags)
698	#endif	936	#endif
699	ev_default_loop (int methods)
700	{	937	{
701	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
702	if (pipe (sigpipe))	939	if (pipe (sigpipe))
703	return 0;	940	return 0;
704		941
705	if (!default_loop)	942	if (!ev_default_loop_ptr)
706	{	943	{
707	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
708	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
709	#else	946	#else
710	default_loop = 1;	947	ev_default_loop_ptr = 1;
711	#endif	948	#endif
712		949
713	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
714		951
715	if (ev_method (EV_A))	952	if (ev_method (EV_A))
716	{	953	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	954	siginit (EV_A);
720		955
721	#ifndef WIN32	956	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	961	#endif
727	}	962	}
728	else	963	else
729	default_loop = 0;	964	ev_default_loop_ptr = 0;
730	}	965	}
731		966
732	return default_loop;	967	return ev_default_loop_ptr;
733	}	968	}
734		969
735	void	970	void
736	ev_default_destroy (void)	971	ev_default_destroy (void)
737	{	972	{
738	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
740	#endif	975	#endif
741		976
		977	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
		980	#endif
744		981
745	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	983	ev_io_stop (EV_A_ &sigev);
747		984
748	close (sigpipe [0]); sigpipe [0] = 0;	985	close (sigpipe [0]); sigpipe [0] = 0;
…		…
753		990
754	void	991	void
755	ev_default_fork (void)	992	ev_default_fork (void)
756	{	993	{
757	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
759	#endif	996	#endif
760		997
761	loop_fork (EV_A);	998	if (method)
762		999	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	1000	}
771		1001
772	/*****************************************************************************/	1002	/*****************************************************************************/
773		1003
774	static void	1004	static int
		1005	any_pending (EV_P)
		1006	{
		1007	int pri;
		1008
		1009	for (pri = NUMPRI; pri--; )
		1010	if (pendingcnt [pri])
		1011	return 1;
		1012
		1013	return 0;
		1014	}
		1015
		1016	inline void
775	call_pending (EV_P)	1017	call_pending (EV_P)
776	{	1018	{
777	int pri;	1019	int pri;
778		1020
779	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
780	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
781	{	1023	{
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		1025
784	if (p->w)	1026	if (expect_true (p->w))
785	{	1027	{
786	p->w->pending = 0;	1028	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
788	}	1030	}
789	}	1031	}
790	}	1032	}
791		1033
792	static void	1034	inline void
793	timers_reify (EV_P)	1035	timers_reify (EV_P)
794	{	1036	{
795	while (timercnt && timers [0]->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	1038	{
797	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
		1040
		1041	assert (("inactive timer on timer heap detected", ev_is_active (w)));
798		1042
799	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
800	if (w->repeat)	1044	if (w->repeat)
801	{	1045	{
802	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
803	w->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
804	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
805	}	1053	}
806	else	1054	else
807	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
808		1056
809	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
810	}	1058	}
811	}	1059	}
812		1060
813	static void	1061	#if EV_PERIODICS
		1062	inline void
814	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
815	{	1064	{
816	while (periodiccnt && periodics [0]->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
817	{	1066	{
818	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
819		1068
		1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1070
820	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
821	if (w->interval)	1072	if (w->reschedule_cb)
822	{	1073	{
		1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1076	downheap ((WT *)periodics, periodiccnt, 0);
		1077	}
		1078	else if (w->interval)
		1079	{
823	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
824	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
825	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
826	}	1083	}
827	else	1084	else
828	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
829		1086
830	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
831	}	1088	}
832	}	1089	}
833		1090
834	static void	1091	static void
835	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
839	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
840	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
841	{	1098	{
842	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
843		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
844	if (w->interval)	1103	else if (w->interval)
845	{
846	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
847
848	if (fabs (diff) >= 1e-4)
849	{
850	ev_periodic_stop (EV_A_ w);
851	ev_periodic_start (EV_A_ w);
852
853	i = 0; /* restart loop, inefficient, but time jumps should be rare */
854	}
855	}
856	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
857	}	1110	}
		1111	#endif
858		1112
859	inline int	1113	inline int
860	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
861	{	1115	{
862	mn_now = get_clock ();	1116	mn_now = get_clock ();
863		1117
864	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
865	{	1119	{
866	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
867	return 0;	1121	return 0;
868	}	1122	}
869	else	1123	else
870	{	1124	{
871	now_floor = mn_now;	1125	now_floor = mn_now;
872	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
873	return 1;	1127	return 1;
874	}	1128	}
875	}	1129	}
876		1130
877	static void	1131	inline void
878	time_update (EV_P)	1132	time_update (EV_P)
879	{	1133	{
880	int i;	1134	int i;
881		1135
882	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
886	{	1140	{
887	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
888		1142
889	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
890	{	1144	{
891	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
892		1146
893	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
894	return; /* all is well */	1148	return; /* all is well */
895		1149
896	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
897	mn_now = get_clock ();	1151	mn_now = get_clock ();
898	now_floor = mn_now;	1152	now_floor = mn_now;
899	}	1153	}
900		1154
		1155	# if EV_PERIODICS
901	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
902	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
903	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
904	}	1160	}
905	}	1161	}
906	else	1162	else
907	#endif	1163	#endif
908	{	1164	{
909	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
910		1166
911	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
912	{	1168	{
		1169	#if EV_PERIODICS
913	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
914		1172
915	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
916	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
917	timers [i]->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
918	}	1176	}
919		1177
920	mn_now = rt_now;	1178	mn_now = ev_rt_now;
921	}	1179	}
922	}	1180	}
923		1181
924	void	1182	void
925	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
939	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
940	{	1198	{
941	double block;	1199	double block;
942	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
943		1201
944	do	1202	while (activecnt)
945	{	1203	{
946	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
947	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
948	{	1206	{
949	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
950	call_pending (EV_A);	1208	call_pending (EV_A);
951	}	1209	}
952		1210
		1211	/* we might have forked, so reify kernel state if necessary */
		1212	if (expect_false (postfork))
		1213	loop_fork (EV_A);
		1214
953	/* update fd-related kernel structures */	1215	/* update fd-related kernel structures */
954	fd_reify (EV_A);	1216	fd_reify (EV_A);
955		1217
956	/* calculate blocking time */	1218	/* calculate blocking time */
957		1219
958	/* we only need this for !monotonic clockor timers, but as we basically	1220	/* we only need this for !monotonic clock or timers, but as we basically
959	always have timers, we just calculate it always */	1221	always have timers, we just calculate it always */
960	#if EV_USE_MONOTONIC	1222	#if EV_USE_MONOTONIC
961	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
962	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
963	else	1225	else
964	#endif	1226	#endif
965	{	1227	{
966	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
967	mn_now = rt_now;	1229	mn_now = ev_rt_now;
968	}	1230	}
969		1231
970	if (flags & EVLOOP_NONBLOCK || idlecnt)	1232	if (flags & EVLOOP_NONBLOCK || idlecnt)
971	block = 0.;	1233	block = 0.;
972	else	1234	else
973	{	1235	{
974	block = MAX_BLOCKTIME;	1236	block = MAX_BLOCKTIME;
975		1237
976	if (timercnt)	1238	if (timercnt)
977	{	1239	{
978	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
979	if (block > to) block = to;	1241	if (block > to) block = to;
980	}	1242	}
981		1243
		1244	#if EV_PERIODICS
982	if (periodiccnt)	1245	if (periodiccnt)
983	{	1246	{
984	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
985	if (block > to) block = to;	1248	if (block > to) block = to;
986	}	1249	}
		1250	#endif
987		1251
988	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
989	}	1253	}
990		1254
991	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
992		1256
993	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
994	time_update (EV_A);	1258	time_update (EV_A);
995		1259
996	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
997	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
998	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
999		1265
1000	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1001	if (!pendingcnt)	1267	if (idlecnt && !any_pending (EV_A))
1002	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1003		1269
1004	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1005	if (checkcnt)	1271	if (expect_false (checkcnt))
1006	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1007		1273
1008	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1009	}	1278	}
1010	while (activecnt && !loop_done);
1011		1279
1012	if (loop_done != 2)	1280	if (loop_done != 2)
1013	loop_done = 0;	1281	loop_done = 0;
1014	}	1282	}
1015		1283
…		…
1075	void	1343	void
1076	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1077	{	1345	{
1078	int fd = w->fd;	1346	int fd = w->fd;
1079		1347
1080	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1081	return;	1349	return;
1082		1350
1083	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1084		1352
1085	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
1086	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1087	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1088		1356
1089	fd_change (EV_A_ fd);	1357	fd_change (EV_A_ fd);
1090	}	1358	}
1091		1359
1092	void	1360	void
1093	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1094	{	1362	{
1095	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1096	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1097	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1098		1368
1099	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1100	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1101		1371
1102	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1103	}	1373	}
1104		1374
1105	void	1375	void
1106	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1107	{	1377	{
1108	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1109	return;	1379	return;
1110		1380
1111	w->at += mn_now;	1381	((WT)w)->at += mn_now;
1112		1382
1113	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1114		1384
1115	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1116	array_needsize (timers, timermax, timercnt, );	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1117	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1118	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
		1389
		1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1119	}	1391	}
1120		1392
1121	void	1393	void
1122	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1123	{	1395	{
1124	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1125	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1126	return;	1398	return;
1127		1399
		1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1401
1128	if (w->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1129	{	1403	{
1130	timers [w->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1131	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1132	}	1406	}
1133		1407
1134	w->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1135		1409
1136	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1137	}	1411	}
1138		1412
1139	void	1413	void
…		…
1141	{	1415	{
1142	if (ev_is_active (w))	1416	if (ev_is_active (w))
1143	{	1417	{
1144	if (w->repeat)	1418	if (w->repeat)
1145	{	1419	{
1146	w->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1147	downheap ((WT *)timers, timercnt, w->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1148	}	1422	}
1149	else	1423	else
1150	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1151	}	1425	}
1152	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1153	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1154	}	1431	}
1155		1432
		1433	#if EV_PERIODICS
1156	void	1434	void
1157	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1158	{	1436	{
1159	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1160	return;	1438	return;
1161		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1162	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1163
1164	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1165	if (w->interval)
1166	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1167		1448
1168	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1169	array_needsize (periodics, periodicmax, periodiccnt, );	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1170	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1171	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
		1453
		1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1172	}	1455	}
1173		1456
1174	void	1457	void
1175	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1176	{	1459	{
1177	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1178	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1179	return;	1462	return;
1180		1463
		1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1465
1181	if (w->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1182	{	1467	{
1183	periodics [w->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1184	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1185	}	1470	}
1186		1471
1187	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1188	}	1473	}
1189		1474
1190	void	1475	void
		1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1477	{
		1478	/* TODO: use adjustheap and recalculation */
		1479	ev_periodic_stop (EV_A_ w);
		1480	ev_periodic_start (EV_A_ w);
		1481	}
		1482	#endif
		1483
		1484	void
1191	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1192	{	1486	{
1193	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1194	return;	1488	return;
1195		1489
1196	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1197	array_needsize (idles, idlemax, idlecnt, );	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1198	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1199	}	1493	}
1200		1494
1201	void	1495	void
1202	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1203	{	1497	{
1204	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1205	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1206	return;	1500	return;
1207		1501
1208	idles [w->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1209	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1210	}	1504	}
1211		1505
1212	void	1506	void
1213	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1214	{	1508	{
1215	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1216	return;	1510	return;
1217		1511
1218	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1219	array_needsize (prepares, preparemax, preparecnt, );	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1220	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1221	}	1515	}
1222		1516
1223	void	1517	void
1224	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1225	{	1519	{
1226	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1227	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1228	return;	1522	return;
1229		1523
1230	prepares [w->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1231	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1232	}	1526	}
1233		1527
1234	void	1528	void
1235	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1236	{	1530	{
1237	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1238	return;	1532	return;
1239		1533
1240	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1241	array_needsize (checks, checkmax, checkcnt, );	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1242	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1243	}	1537	}
1244		1538
1245	void	1539	void
1246	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1247	{	1541	{
1248	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1249	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1250	return;	1544	return;
1251		1545
1252	checks [w->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1253	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1254	}	1548	}
1255		1549
1256	#ifndef SA_RESTART	1550	#ifndef SA_RESTART
1257	# define SA_RESTART 0	1551	# define SA_RESTART 0
…		…
1259		1553
1260	void	1554	void
1261	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1262	{	1556	{
1263	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1264	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1265	#endif	1559	#endif
1266	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1267	return;	1561	return;
1268		1562
1269	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1270		1564
1271	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1272	array_needsize (signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1273	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1274		1568
1275	if (!w->next)	1569	if (!((WL)w)->next)
1276	{	1570	{
		1571	#if _WIN32
		1572	signal (w->signum, sighandler);
		1573	#else
1277	struct sigaction sa;	1574	struct sigaction sa;
1278	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1279	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
1280	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1577	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1281	sigaction (w->signum, &sa, 0);	1578	sigaction (w->signum, &sa, 0);
		1579	#endif
1282	}	1580	}
1283	}	1581	}
1284		1582
1285	void	1583	void
1286	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1287	{	1585	{
1288	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1289	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1290	return;	1588	return;
1291		1589
1292	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1293	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1294		1592
…		…
1298		1596
1299	void	1597	void
1300	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1301	{	1599	{
1302	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1303	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1304	#endif	1602	#endif
1305	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1306	return;	1604	return;
1307		1605
1308	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1309	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1310	}	1608	}
1311		1609
1312	void	1610	void
1313	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1314	{	1612	{
1315	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1316	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1317	return;	1615	return;
1318		1616
1319	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1320	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1321	}	1619	}
…		…
1336	void (*cb)(int revents, void *arg) = once->cb;	1634	void (*cb)(int revents, void *arg) = once->cb;
1337	void *arg = once->arg;	1635	void *arg = once->arg;
1338		1636
1339	ev_io_stop (EV_A_ &once->io);	1637	ev_io_stop (EV_A_ &once->io);
1340	ev_timer_stop (EV_A_ &once->to);	1638	ev_timer_stop (EV_A_ &once->to);
1341	free (once);	1639	ev_free (once);
1342		1640
1343	cb (revents, arg);	1641	cb (revents, arg);
1344	}	1642	}
1345		1643
1346	static void	1644	static void
…		…
1356	}	1654	}
1357		1655
1358	void	1656	void
1359	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1360	{	1658	{
1361	struct ev_once *once = malloc (sizeof (struct ev_once));	1659	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1362		1660
1363	if (!once)	1661	if (expect_false (!once))
		1662	{
1364	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1663	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1365	else	1664	return;
1366	{	1665	}
		1666
1367	once->cb = cb;	1667	once->cb = cb;
1368	once->arg = arg;	1668	once->arg = arg;
1369		1669
1370	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1371	if (fd >= 0)	1671	if (fd >= 0)
1372	{	1672	{
1373	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1374	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1375	}	1675	}
1376		1676
1377	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1378	if (timeout >= 0.)	1678	if (timeout >= 0.)
1379	{	1679	{
1380	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1381	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1382	}
1383	}	1682	}
1384	}	1683	}
1385		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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