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Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 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
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
…		…
66	#include <sys/types.h>	106	#include <sys/types.h>
67	#include <time.h>	107	#include <time.h>
68		108
69	#include <signal.h>	109	#include <signal.h>
70		110
71	#ifndef WIN32	111	#ifndef _WIN32
72	# include <unistd.h>	112	# include <unistd.h>
73	# include <sys/time.h>	113	# include <sys/time.h>
74	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	120	# endif
		121	#endif
		122
76	/**/	123	/**/
77		124
78	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
80	#endif	131	#endif
81		132
82	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
84	#endif	135	#endif
85		136
86	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
88	#endif	143	#endif
89		144
90	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
92	#endif	147	#endif
93		148
94	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
96	#endif	151	#endif
97		152
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
110	#endif	155	#endif
111		156
112	/**/	157	/**/
113		158
114	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
119	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
122	#endif	167	#endif
123		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
124	/**/	173	/**/
125		174
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	178	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
130		179
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
131	#include "ev.h"	183	# include "ev.h"
		184	#endif
132		185
133	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	188	# define inline static inline
136	#else	189	#else
137	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
138	# define inline static	191	# define inline static
139	#endif	192	#endif
140		193
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
143		196
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
147	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
150		206
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		208
153	#if WIN32	209	#ifdef _WIN32
154	/* note: the comment below could not be substantiated, but what would I care */	210	# include "ev_win32.c"
155	/* MSDN says this is required to handle SIGFPE */
156	volatile double SIGFPE_REQ = 0.0f;
157
158	static int
159	ev_socketpair_tcp (int filedes [2])
160	{
161	struct sockaddr_in addr = { 0 };
162	int addr_size = sizeof (addr);
163	SOCKET listener;
164	SOCKET sock [2] = { -1, -1 };
165
166	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
167	return -1;
168
169	addr.sin_family = AF_INET;
170	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
171	addr.sin_port = 0;
172
173	if (bind (listener, (struct sockaddr *)&addr, addr_size))
174	goto fail;
175
176	if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
177	goto fail;
178
179	if (listen (listener, 1))
180	goto fail;
181
182	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
183	goto fail;
184
185	if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
186	goto fail;
187
188	if ((sock[1] = accept (listener, 0, 0)) < 0)
189	goto fail;
190
191	closesocket (listener);
192
193	filedes [0] = sock [0];
194	filedes [1] = sock [1];
195
196	return 0;
197
198	fail:
199	closesocket (listener);
200
201	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
202	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
203
204	return -1;
205	}
206
207	# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
208	#else
209	# define ev_pipe(filedes) pipe (filedes)
210	#endif	211	#endif
211		212
212	/*****************************************************************************/	213	/*****************************************************************************/
213		214
214	static void (*syserr_cb)(const char *msg);	215	static void (*syserr_cb)(const char *msg);
…		…
262	typedef struct	263	typedef struct
263	{	264	{
264	WL head;	265	WL head;
265	unsigned char events;	266	unsigned char events;
266	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
267	} ANFD;	271	} ANFD;
268		272
269	typedef struct	273	typedef struct
270	{	274	{
271	W w;	275	W w;
272	int events;	276	int events;
273	} ANPENDING;	277	} ANPENDING;
274		278
275	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
276		280
277	struct ev_loop	281	struct ev_loop
278	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
279	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
280	# include "ev_vars.h"	286	#include "ev_vars.h"
281	};
282	# undef VAR	287	#undef VAR
		288	};
283	# include "ev_wrap.h"	289	#include "ev_wrap.h"
		290
		291	static struct ev_loop default_loop_struct;
		292	struct ev_loop *ev_default_loop_ptr;
284		293
285	#else	294	#else
286		295
		296	ev_tstamp ev_rt_now;
287	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
288	# include "ev_vars.h"	298	#include "ev_vars.h"
289	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
290		302
291	#endif	303	#endif
292		304
293	/*****************************************************************************/	305	/*****************************************************************************/
294		306
295	inline ev_tstamp	307	ev_tstamp
296	ev_time (void)	308	ev_time (void)
297	{	309	{
298	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
299	struct timespec ts;	311	struct timespec ts;
300	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
319	#endif	331	#endif
320		332
321	return ev_time ();	333	return ev_time ();
322	}	334	}
323		335
		336	#if EV_MULTIPLICITY
324	ev_tstamp	337	ev_tstamp
325	ev_now (EV_P)	338	ev_now (EV_P)
326	{	339	{
327	return rt_now;	340	return ev_rt_now;
328	}	341	}
		342	#endif
329		343
330	#define array_roundsize(base,n) ((n) | 4 & ~3)	344	#define array_roundsize(type,n) (((n) | 4) & ~3)
331		345
332	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
333	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
334	{ \	348	{ \
335	int newcnt = cur; \	349	int newcnt = cur; \
336	do \	350	do \
337	{ \	351	{ \
338	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
339	} \	353	} \
340	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
341	\	355	\
342	base = ev_realloc (base, sizeof (*base) * (newcnt)); \	356	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
343	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
344	cur = newcnt; \	358	cur = newcnt; \
345	}	359	}
346		360
347	#define array_slim(stem) \	361	#define array_slim(type,stem) \
348	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
349	{ \	363	{ \
350	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
351	base = ev_realloc (base, sizeof (*base) * (stem ## max)); \	365	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
352	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
353	}	367	}
354
355	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
356	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
357	#define array_free_microshit(stem) \
358	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
359		368
360	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
361	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
362		371
363	/*****************************************************************************/	372	/*****************************************************************************/
…		…
373		382
374	++base;	383	++base;
375	}	384	}
376	}	385	}
377		386
378	static void	387	void
379	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
380	{	389	{
381	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
382	{	393	{
383	pendings [ABSPRI (w)][w->pending - 1].events |= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
384	return;	395	return;
385	}	396	}
386		397
387	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
388	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
389	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
390	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
391	}	402	}
392		403
393	static void	404	static void
394	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
395	{	406	{
396	int i;	407	int i;
397		408
398	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
399	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
400	}	411	}
401		412
402	static void	413	inline void
403	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
404	{	415	{
405	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
406	struct ev_io *w;	417	struct ev_io *w;
407		418
408	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	419	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
409	{	420	{
410	int ev = w->events & events;	421	int ev = w->events & revents;
411		422
412	if (ev)	423	if (ev)
413	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
414	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
415	}	432	}
416		433
417	/*****************************************************************************/	434	/*****************************************************************************/
418		435
419	static void	436	inline void
420	fd_reify (EV_P)	437	fd_reify (EV_P)
421	{	438	{
422	int i;	439	int i;
423		440
424	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
430	int events = 0;	447	int events = 0;
431		448
432	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	449	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
433	events |= w->events;	450	events |= w->events;
434		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
435	anfd->reify = 0;	461	anfd->reify = 0;
436		462
437	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
438	anfd->events = events;	464	anfd->events = events;
439	}	465	}
440		466
441	fdchangecnt = 0;	467	fdchangecnt = 0;
442	}	468	}
443		469
444	static void	470	static void
445	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
446	{	472	{
447	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
448	return;	474	return;
449		475
450	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
451		477
452	++fdchangecnt;	478	++fdchangecnt;
453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
454	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
455	}	481	}
456		482
457	static void	483	static void
458	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
460	struct ev_io *w;	486	struct ev_io *w;
461		487
462	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
463	{	489	{
464	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
465	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
466	}	492	}
467	}	493	}
468		494
469	static int	495	inline int
470	fd_valid (int fd)	496	fd_valid (int fd)
471	{	497	{
472	#ifdef WIN32	498	#ifdef _WIN32
473	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
474	#else	500	#else
475	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
476	#endif	502	#endif
477	}	503	}
478		504
…		…
500	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
501	return;	527	return;
502	}	528	}
503	}	529	}
504		530
505	/* usually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
506	static void	532	static void
507	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
508	{	534	{
509	int fd;	535	int fd;
510		536
…		…
558		584
559	heap [k] = w;	585	heap [k] = w;
560	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
561	}	587	}
562		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
		594	}
		595
563	/*****************************************************************************/	596	/*****************************************************************************/
564		597
565	typedef struct	598	typedef struct
566	{	599	{
567	WL head;	600	WL head;
…		…
588	}	621	}
589		622
590	static void	623	static void
591	sighandler (int signum)	624	sighandler (int signum)
592	{	625	{
593	#if WIN32	626	#if _WIN32
594	signal (signum, sighandler);	627	signal (signum, sighandler);
595	#endif	628	#endif
596		629
597	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
598		631
…		…
603	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
604	errno = old_errno;	637	errno = old_errno;
605	}	638	}
606	}	639	}
607		640
		641	void
		642	ev_feed_signal_event (EV_P_ int signum)
		643	{
		644	WL w;
		645
		646	#if EV_MULTIPLICITY
		647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		648	#endif
		649
		650	--signum;
		651
		652	if (signum < 0 || signum >= signalmax)
		653	return;
		654
		655	signals [signum].gotsig = 0;
		656
		657	for (w = signals [signum].head; w; w = w->next)
		658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		659	}
		660
608	static void	661	static void
609	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
610	{	663	{
611	WL w;
612	int signum;	664	int signum;
613		665
614	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
615	gotsig = 0;	667	gotsig = 0;
616		668
617	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
618	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
619	{	671	ev_feed_signal_event (EV_A_ signum + 1);
620	signals [signum].gotsig = 0;	672	}
621		673
622	for (w = signals [signum].head; w; w = w->next)	674	static void
623	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
624	}	676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
625	}	684	}
626		685
627	static void	686	static void
628	siginit (EV_P)	687	siginit (EV_P)
629	{	688	{
630	#ifndef WIN32	689	fd_intern (sigpipe [0]);
631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
633
634	/* rather than sort out wether we really need nb, set it */
635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
637	#endif
638		691
639	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
640	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
641	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
642	}	695	}
643		696
644	/*****************************************************************************/	697	/*****************************************************************************/
645		698
646	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
647		700
648	#ifndef WIN32	701	#ifndef _WIN32
649		702
650	static struct ev_signal childev;	703	static struct ev_signal childev;
651		704
652	#ifndef WCONTINUED	705	#ifndef WCONTINUED
653	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
662	if (w->pid == pid || !w->pid)	715	if (w->pid == pid || !w->pid)
663	{	716	{
664	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	717	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
665	w->rpid = pid;	718	w->rpid = pid;
666	w->rstatus = status;	719	w->rstatus = status;
667	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
668	}	721	}
669	}	722	}
670		723
671	static void	724	static void
672	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
674	int pid, status;	727	int pid, status;
675		728
676	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
677	{	730	{
678	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
		732	/* we need to do it this way so that the callback gets called before we continue */
679	event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
680		734
681	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
682	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
683	}	737	}
684	}	738	}
685		739
686	#endif	740	#endif
687		741
688	/*****************************************************************************/	742	/*****************************************************************************/
689		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
690	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
691	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
692	#endif	749	#endif
693	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
694	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
714		771
715	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
716	static int	773	static int
717	enable_secure (void)	774	enable_secure (void)
718	{	775	{
719	#ifdef WIN32	776	#ifdef _WIN32
720	return 0;	777	return 0;
721	#else	778	#else
722	return getuid () != geteuid ()	779	return getuid () != geteuid ()
723	|| getgid () != getegid ();	780	|| getgid () != getegid ();
724	#endif	781	#endif
725	}	782	}
726		783
727	int	784	unsigned int
728	ev_method (EV_P)	785	ev_supported_backends (void)
729	{	786	{
730	return method;	787	unsigned int flags = 0;
731	}
732		788
733	static void	789	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
734	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
735	{	800	{
736	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
737	{	826	{
738	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
739	{	828	{
740	struct timespec ts;	829	struct timespec ts;
741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
742	have_monotonic = 1;	831	have_monotonic = 1;
743	}	832	}
744	#endif	833	#endif
745		834
746	rt_now = ev_time ();	835	ev_rt_now = ev_time ();
747	mn_now = get_clock ();	836	mn_now = get_clock ();
748	now_floor = mn_now;	837	now_floor = mn_now;
749	rtmn_diff = rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
750		839
751	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
752	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
753	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
754	else
755	methods = EVMETHOD_ANY;
756		844
757	method = 0;	845	if (!(flags & 0x0000ffffUL))
758	#if EV_USE_WIN32	846	flags |= ev_recommended_backends ();
759	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
760	#endif	851	#endif
761	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
763	#endif	854	#endif
764	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
766	#endif	857	#endif
767	#if EV_USE_POLL	858	#if EV_USE_POLL
768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
769	#endif	860	#endif
770	#if EV_USE_SELECT	861	#if EV_USE_SELECT
771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
772	#endif	863	#endif
773		864
774	ev_watcher_init (&sigev, sigcb);	865	ev_init (&sigev, sigcb);
775	ev_set_priority (&sigev, EV_MAXPRI);	866	ev_set_priority (&sigev, EV_MAXPRI);
776	}	867	}
777	}	868	}
778		869
779	void	870	static void
780	loop_destroy (EV_P)	871	loop_destroy (EV_P)
781	{	872	{
782	int i;	873	int i;
783		874
784	#if EV_USE_WIN32	875	#if EV_USE_PORT
785	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
786	#endif	877	#endif
787	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
788	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
789	#endif	880	#endif
790	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
791	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
792	#endif	883	#endif
793	#if EV_USE_POLL	884	#if EV_USE_POLL
794	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
795	#endif	886	#endif
796	#if EV_USE_SELECT	887	#if EV_USE_SELECT
797	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
798	#endif	889	#endif
799		890
800	for (i = NUMPRI; i--; )	891	for (i = NUMPRI; i--; )
801	array_free (pending, [i]);	892	array_free (pending, [i]);
802		893
803	/* have to use the microsoft-never-gets-it-right macro */	894	/* have to use the microsoft-never-gets-it-right macro */
804	array_free_microshit (fdchange);	895	array_free (fdchange, EMPTY0);
805	array_free_microshit (timer);	896	array_free (timer, EMPTY0);
806	array_free_microshit (periodic);	897	#if EV_PERIODICS
807	array_free_microshit (idle);	898	array_free (periodic, EMPTY0);
808	array_free_microshit (prepare);	899	#endif
809	array_free_microshit (check);	900	array_free (idle, EMPTY0);
		901	array_free (prepare, EMPTY0);
		902	array_free (check, EMPTY0);
810		903
811	method = 0;	904	backend = 0;
812	}	905	}
813		906
814	static void	907	static void
815	loop_fork (EV_P)	908	loop_fork (EV_P)
816	{	909	{
		910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
817	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
818	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
819	#endif
820	#if EV_USE_KQUEUE
821	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
822	#endif	918	#endif
823		919
824	if (ev_is_active (&sigev))	920	if (ev_is_active (&sigev))
825	{	921	{
826	/* default loop */	922	/* default loop */
…		…
828	ev_ref (EV_A);	924	ev_ref (EV_A);
829	ev_io_stop (EV_A_ &sigev);	925	ev_io_stop (EV_A_ &sigev);
830	close (sigpipe [0]);	926	close (sigpipe [0]);
831	close (sigpipe [1]);	927	close (sigpipe [1]);
832		928
833	while (ev_pipe (sigpipe))	929	while (pipe (sigpipe))
834	syserr ("(libev) error creating pipe");	930	syserr ("(libev) error creating pipe");
835		931
836	siginit (EV_A);	932	siginit (EV_A);
837	}	933	}
838		934
839	postfork = 0;	935	postfork = 0;
840	}	936	}
841		937
842	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
843	struct ev_loop *	939	struct ev_loop *
844	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
845	{	941	{
846	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	942	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
847		943
848	memset (loop, 0, sizeof (struct ev_loop));	944	memset (loop, 0, sizeof (struct ev_loop));
849		945
850	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
851		947
852	if (ev_method (EV_A))	948	if (ev_backend (EV_A))
853	return loop;	949	return loop;
854		950
855	return 0;	951	return 0;
856	}	952	}
857		953
…		…
869	}	965	}
870		966
871	#endif	967	#endif
872		968
873	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
874	struct ev_loop default_loop_struct;
875	static struct ev_loop *default_loop;
876
877	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
878	#else	972	#else
879	static int default_loop;
880
881	int	973	int
		974	ev_default_loop (unsigned int flags)
882	#endif	975	#endif
883	ev_default_loop (int methods)
884	{	976	{
885	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
886	if (ev_pipe (sigpipe))	978	if (pipe (sigpipe))
887	return 0;	979	return 0;
888		980
889	if (!default_loop)	981	if (!ev_default_loop_ptr)
890	{	982	{
891	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
892	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
893	#else	985	#else
894	default_loop = 1;	986	ev_default_loop_ptr = 1;
895	#endif	987	#endif
896		988
897	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
898		990
899	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
900	{	992	{
901	siginit (EV_A);	993	siginit (EV_A);
902		994
903	#ifndef WIN32	995	#ifndef _WIN32
904	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
905	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
906	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
907	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
908	#endif	1000	#endif
909	}	1001	}
910	else	1002	else
911	default_loop = 0;	1003	ev_default_loop_ptr = 0;
912	}	1004	}
913		1005
914	return default_loop;	1006	return ev_default_loop_ptr;
915	}	1007	}
916		1008
917	void	1009	void
918	ev_default_destroy (void)	1010	ev_default_destroy (void)
919	{	1011	{
920	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
921	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
922	#endif	1014	#endif
923		1015
924	#ifndef WIN32	1016	#ifndef _WIN32
925	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
926	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
927	#endif	1019	#endif
928		1020
929	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
…		…
937		1029
938	void	1030	void
939	ev_default_fork (void)	1031	ev_default_fork (void)
940	{	1032	{
941	#if EV_MULTIPLICITY	1033	#if EV_MULTIPLICITY
942	struct ev_loop *loop = default_loop;	1034	struct ev_loop *loop = ev_default_loop_ptr;
943	#endif	1035	#endif
944		1036
945	if (method)	1037	if (backend)
946	postfork = 1;	1038	postfork = 1;
947	}	1039	}
948		1040
949	/*****************************************************************************/	1041	/*****************************************************************************/
950		1042
951	static void	1043	static int
		1044	any_pending (EV_P)
		1045	{
		1046	int pri;
		1047
		1048	for (pri = NUMPRI; pri--; )
		1049	if (pendingcnt [pri])
		1050	return 1;
		1051
		1052	return 0;
		1053	}
		1054
		1055	inline void
952	call_pending (EV_P)	1056	call_pending (EV_P)
953	{	1057	{
954	int pri;	1058	int pri;
955		1059
956	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
957	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
958	{	1062	{
959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
960		1064
961	if (p->w)	1065	if (expect_true (p->w))
962	{	1066	{
963	p->w->pending = 0;	1067	p->w->pending = 0;
964	p->w->cb (EV_A_ p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
965	}	1069	}
966	}	1070	}
967	}	1071	}
968		1072
969	static void	1073	inline void
970	timers_reify (EV_P)	1074	timers_reify (EV_P)
971	{	1075	{
972	while (timercnt && ((WT)timers [0])->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
973	{	1077	{
974	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
…		…
977		1081
978	/* first reschedule or stop timer */	1082	/* first reschedule or stop timer */
979	if (w->repeat)	1083	if (w->repeat)
980	{	1084	{
981	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1085	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1086
982	((WT)w)->at = mn_now + w->repeat;	1087	((WT)w)->at += w->repeat;
		1088	if (((WT)w)->at < mn_now)
		1089	((WT)w)->at = mn_now;
		1090
983	downheap ((WT *)timers, timercnt, 0);	1091	downheap ((WT *)timers, timercnt, 0);
984	}	1092	}
985	else	1093	else
986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1094	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
987		1095
988	event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
989	}	1097	}
990	}	1098	}
991		1099
992	static void	1100	#if EV_PERIODICS
		1101	inline void
993	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
994	{	1103	{
995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
996	{	1105	{
997	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
998		1107
999	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1000		1109
1001	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
1002	if (w->interval)	1111	if (w->reschedule_cb)
1003	{	1112	{
		1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1115	downheap ((WT *)periodics, periodiccnt, 0);
		1116	}
		1117	else if (w->interval)
		1118	{
1004	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1119	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1005	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1120	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1006	downheap ((WT *)periodics, periodiccnt, 0);	1121	downheap ((WT *)periodics, periodiccnt, 0);
1007	}	1122	}
1008	else	1123	else
1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1124	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1010		1125
1011	event (EV_A_ (W)w, EV_PERIODIC);	1126	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1012	}	1127	}
1013	}	1128	}
1014		1129
1015	static void	1130	static void
1016	periodics_reschedule (EV_P)	1131	periodics_reschedule (EV_P)
…		…
1020	/* adjust periodics after time jump */	1135	/* adjust periodics after time jump */
1021	for (i = 0; i < periodiccnt; ++i)	1136	for (i = 0; i < periodiccnt; ++i)
1022	{	1137	{
1023	struct ev_periodic *w = periodics [i];	1138	struct ev_periodic *w = periodics [i];
1024		1139
		1140	if (w->reschedule_cb)
		1141	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1025	if (w->interval)	1142	else if (w->interval)
1026	{
1027	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1143	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1028
1029	if (fabs (diff) >= 1e-4)
1030	{
1031	ev_periodic_stop (EV_A_ w);
1032	ev_periodic_start (EV_A_ w);
1033
1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
1035	}
1036	}
1037	}	1144	}
		1145
		1146	/* now rebuild the heap */
		1147	for (i = periodiccnt >> 1; i--; )
		1148	downheap ((WT *)periodics, periodiccnt, i);
1038	}	1149	}
		1150	#endif
1039		1151
1040	inline int	1152	inline int
1041	time_update_monotonic (EV_P)	1153	time_update_monotonic (EV_P)
1042	{	1154	{
1043	mn_now = get_clock ();	1155	mn_now = get_clock ();
1044		1156
1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1157	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1046	{	1158	{
1047	rt_now = rtmn_diff + mn_now;	1159	ev_rt_now = rtmn_diff + mn_now;
1048	return 0;	1160	return 0;
1049	}	1161	}
1050	else	1162	else
1051	{	1163	{
1052	now_floor = mn_now;	1164	now_floor = mn_now;
1053	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1054	return 1;	1166	return 1;
1055	}	1167	}
1056	}	1168	}
1057		1169
1058	static void	1170	inline void
1059	time_update (EV_P)	1171	time_update (EV_P)
1060	{	1172	{
1061	int i;	1173	int i;
1062		1174
1063	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
1067	{	1179	{
1068	ev_tstamp odiff = rtmn_diff;	1180	ev_tstamp odiff = rtmn_diff;
1069		1181
1070	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1182	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1071	{	1183	{
1072	rtmn_diff = rt_now - mn_now;	1184	rtmn_diff = ev_rt_now - mn_now;
1073		1185
1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1186	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1075	return; /* all is well */	1187	return; /* all is well */
1076		1188
1077	rt_now = ev_time ();	1189	ev_rt_now = ev_time ();
1078	mn_now = get_clock ();	1190	mn_now = get_clock ();
1079	now_floor = mn_now;	1191	now_floor = mn_now;
1080	}	1192	}
1081		1193
		1194	# if EV_PERIODICS
1082	periodics_reschedule (EV_A);	1195	periodics_reschedule (EV_A);
		1196	# endif
1083	/* no timer adjustment, as the monotonic clock doesn't jump */	1197	/* no timer adjustment, as the monotonic clock doesn't jump */
1084	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1198	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1085	}	1199	}
1086	}	1200	}
1087	else	1201	else
1088	#endif	1202	#endif
1089	{	1203	{
1090	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
1091		1205
1092	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1206	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1093	{	1207	{
		1208	#if EV_PERIODICS
1094	periodics_reschedule (EV_A);	1209	periodics_reschedule (EV_A);
		1210	#endif
1095		1211
1096	/* adjust timers. this is easy, as the offset is the same for all */	1212	/* adjust timers. this is easy, as the offset is the same for all */
1097	for (i = 0; i < timercnt; ++i)	1213	for (i = 0; i < timercnt; ++i)
1098	((WT)timers [i])->at += rt_now - mn_now;	1214	((WT)timers [i])->at += ev_rt_now - mn_now;
1099	}	1215	}
1100		1216
1101	mn_now = rt_now;	1217	mn_now = ev_rt_now;
1102	}	1218	}
1103	}	1219	}
1104		1220
1105	void	1221	void
1106	ev_ref (EV_P)	1222	ev_ref (EV_P)
…		…
1120	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
1121	{	1237	{
1122	double block;	1238	double block;
1123	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
1124		1240
1125	do	1241	while (activecnt)
1126	{	1242	{
1127	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
1128	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
1129	{	1245	{
1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	/* update fd-related kernel structures */	1254	/* update fd-related kernel structures */
1139	fd_reify (EV_A);	1255	fd_reify (EV_A);
1140		1256
1141	/* calculate blocking time */	1257	/* calculate blocking time */
1142		1258
1143	/* we only need this for !monotonic clockor timers, but as we basically	1259	/* we only need this for !monotonic clock or timers, but as we basically
1144	always have timers, we just calculate it always */	1260	always have timers, we just calculate it always */
1145	#if EV_USE_MONOTONIC	1261	#if EV_USE_MONOTONIC
1146	if (expect_true (have_monotonic))	1262	if (expect_true (have_monotonic))
1147	time_update_monotonic (EV_A);	1263	time_update_monotonic (EV_A);
1148	else	1264	else
1149	#endif	1265	#endif
1150	{	1266	{
1151	rt_now = ev_time ();	1267	ev_rt_now = ev_time ();
1152	mn_now = rt_now;	1268	mn_now = ev_rt_now;
1153	}	1269	}
1154		1270
1155	if (flags & EVLOOP_NONBLOCK || idlecnt)	1271	if (flags & EVLOOP_NONBLOCK || idlecnt)
1156	block = 0.;	1272	block = 0.;
1157	else	1273	else
1158	{	1274	{
1159	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
1160		1276
1161	if (timercnt)	1277	if (timercnt)
1162	{	1278	{
1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1164	if (block > to) block = to;	1280	if (block > to) block = to;
1165	}	1281	}
1166		1282
		1283	#if EV_PERIODICS
1167	if (periodiccnt)	1284	if (periodiccnt)
1168	{	1285	{
1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1170	if (block > to) block = to;	1287	if (block > to) block = to;
1171	}	1288	}
		1289	#endif
1172		1290
1173	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
1174	}	1292	}
1175		1293
1176	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
1177		1295
1178	/* update rt_now, do magic */	1296	/* update ev_rt_now, do magic */
1179	time_update (EV_A);	1297	time_update (EV_A);
1180		1298
1181	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
1182	timers_reify (EV_A); /* relative timers called last */	1300	timers_reify (EV_A); /* relative timers called last */
		1301	#if EV_PERIODICS
1183	periodics_reify (EV_A); /* absolute timers called first */	1302	periodics_reify (EV_A); /* absolute timers called first */
		1303	#endif
1184		1304
1185	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
1186	if (!pendingcnt)	1306	if (idlecnt && !any_pending (EV_A))
1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1188		1308
1189	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
1190	if (checkcnt)	1310	if (expect_false (checkcnt))
1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1192		1312
1193	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
1194	}	1317	}
1195	while (activecnt && !loop_done);
1196		1318
1197	if (loop_done != 2)	1319	if (loop_done != 2)
1198	loop_done = 0;	1320	loop_done = 0;
1199	}	1321	}
1200		1322
…		…
1260	void	1382	void
1261	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1262	{	1384	{
1263	int fd = w->fd;	1385	int fd = w->fd;
1264		1386
1265	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1266	return;	1388	return;
1267		1389
1268	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1269		1391
1270	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1393	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1394	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1273		1395
1274	fd_change (EV_A_ fd);	1396	fd_change (EV_A_ fd);
1275	}	1397	}
1276		1398
1277	void	1399	void
1278	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1279	{	1401	{
1280	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1281	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1282	return;	1404	return;
		1405
		1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1283		1407
1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1285	ev_stop (EV_A_ (W)w);	1409	ev_stop (EV_A_ (W)w);
1286		1410
1287	fd_change (EV_A_ w->fd);	1411	fd_change (EV_A_ w->fd);
1288	}	1412	}
1289		1413
1290	void	1414	void
1291	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1292	{	1416	{
1293	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1294	return;	1418	return;
1295		1419
1296	((WT)w)->at += mn_now;	1420	((WT)w)->at += mn_now;
1297		1421
1298	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1299		1423
1300	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1301	array_needsize (timers, timermax, timercnt, (void));	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1302	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1303	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
1304		1428
1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1306	}	1430	}
1307		1431
1308	void	1432	void
1309	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1310	{	1434	{
1311	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1312	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1313	return;	1437	return;
1314		1438
1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1316		1440
1317	if (((W)w)->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1318	{	1442	{
1319	timers [((W)w)->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1321	}	1445	}
1322		1446
1323	((WT)w)->at = w->repeat;	1447	((WT)w)->at -= mn_now;
1324		1448
1325	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1326	}	1450	}
1327		1451
1328	void	1452	void
…		…
1331	if (ev_is_active (w))	1455	if (ev_is_active (w))
1332	{	1456	{
1333	if (w->repeat)	1457	if (w->repeat)
1334	{	1458	{
1335	((WT)w)->at = mn_now + w->repeat;	1459	((WT)w)->at = mn_now + w->repeat;
1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1460	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1337	}	1461	}
1338	else	1462	else
1339	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1340	}	1464	}
1341	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1342	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1343	}	1470	}
1344		1471
		1472	#if EV_PERIODICS
1345	void	1473	void
1346	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1347	{	1475	{
1348	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1349	return;	1477	return;
1350		1478
		1479	if (w->reschedule_cb)
		1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1481	else if (w->interval)
		1482	{
1351	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1483	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1352
1353	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1354	if (w->interval)
1355	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1486	}
1356		1487
1357	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1358	array_needsize (periodics, periodicmax, periodiccnt, (void));	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1359	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1360	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
1361		1492
1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1363	}	1494	}
1364		1495
1365	void	1496	void
1366	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1367	{	1498	{
1368	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1369	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1370	return;	1501	return;
1371		1502
1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1373		1504
1374	if (((W)w)->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1375	{	1506	{
1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1378	}	1509	}
1379		1510
1380	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1381	}	1512	}
1382		1513
1383	void	1514	void
		1515	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1516	{
		1517	/* TODO: use adjustheap and recalculation */
		1518	ev_periodic_stop (EV_A_ w);
		1519	ev_periodic_start (EV_A_ w);
		1520	}
		1521	#endif
		1522
		1523	void
1384	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1385	{	1525	{
1386	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1387	return;	1527	return;
1388		1528
1389	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1390	array_needsize (idles, idlemax, idlecnt, (void));	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1391	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1392	}	1532	}
1393		1533
1394	void	1534	void
1395	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1396	{	1536	{
1397	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1399	return;	1539	return;
1400		1540
1401	idles [((W)w)->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1402	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1403	}	1543	}
1404		1544
1405	void	1545	void
1406	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1407	{	1547	{
1408	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1409	return;	1549	return;
1410		1550
1411	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1412	array_needsize (prepares, preparemax, preparecnt, (void));	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1413	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1414	}	1554	}
1415		1555
1416	void	1556	void
1417	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1418	{	1558	{
1419	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1421	return;	1561	return;
1422		1562
1423	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1424	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1425	}	1565	}
1426		1566
1427	void	1567	void
1428	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1429	{	1569	{
1430	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1431	return;	1571	return;
1432		1572
1433	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1434	array_needsize (checks, checkmax, checkcnt, (void));	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1435	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1436	}	1576	}
1437		1577
1438	void	1578	void
1439	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1440	{	1580	{
1441	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1442	if (ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1443	return;	1583	return;
1444		1584
1445	checks [((W)w)->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1446	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1447	}	1587	}
…		…
1452		1592
1453	void	1593	void
1454	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1455	{	1595	{
1456	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1457	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1458	#endif	1598	#endif
1459	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1460	return;	1600	return;
1461		1601
1462	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1463		1603
1464	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1465	array_needsize (signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1467		1607
1468	if (!((WL)w)->next)	1608	if (!((WL)w)->next)
1469	{	1609	{
1470	#if WIN32	1610	#if _WIN32
1471	signal (w->signum, sighandler);	1611	signal (w->signum, sighandler);
1472	#else	1612	#else
1473	struct sigaction sa;	1613	struct sigaction sa;
1474	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1475	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
…		…
1481		1621
1482	void	1622	void
1483	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1484	{	1624	{
1485	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1486	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1487	return;	1627	return;
1488		1628
1489	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1490	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1491		1631
…		…
1495		1635
1496	void	1636	void
1497	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1498	{	1638	{
1499	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1500	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1501	#endif	1641	#endif
1502	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1503	return;	1643	return;
1504		1644
1505	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1506	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1507	}	1647	}
1508		1648
1509	void	1649	void
1510	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1511	{	1651	{
1512	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1513	if (ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1514	return;	1654	return;
1515		1655
1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1517	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1518	}	1658	}
…		…
1553	}	1693	}
1554		1694
1555	void	1695	void
1556	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1557	{	1697	{
1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1698	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1559		1699
1560	if (!once)	1700	if (expect_false (!once))
		1701	{
1561	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1702	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1562	else	1703	return;
1563	{	1704	}
		1705
1564	once->cb = cb;	1706	once->cb = cb;
1565	once->arg = arg;	1707	once->arg = arg;
1566		1708
1567	ev_watcher_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1568	if (fd >= 0)	1710	if (fd >= 0)
1569	{	1711	{
1570	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1571	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1572	}	1714	}
1573		1715
1574	ev_watcher_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1575	if (timeout >= 0.)	1717	if (timeout >= 0.)
1576	{	1718	{
1577	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1578	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1579	}
1580	}	1721	}
1581	}	1722	}
1582		1723
		1724	#ifdef __cplusplus
		1725	}
		1726	#endif
		1727

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