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

Comparing libev/ev.c (file contents):
Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs.
Revision 1.226 by root, Fri Apr 18 17:16:44 2008 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
9	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
10	*	27	*
11	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
12	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
13	*	30	* in which case the provisions of the GPL are applicable instead of
14	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
15	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
16	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
17	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
18	*	35	* and other provisions required by the GPL. If you do not delete the
19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
30	*/	38	*/
31		39
32	#ifdef __cplusplus	40	#ifdef __cplusplus
33	extern "C" {	41	extern "C" {
34	#endif	42	#endif
35		43
		44	/* this big block deduces configuration from config.h */
36	#ifndef EV_STANDALONE	45	#ifndef EV_STANDALONE
37	# ifdef EV_CONFIG_H	46	# ifdef EV_CONFIG_H
38	# include EV_CONFIG_H	47	# include EV_CONFIG_H
39	# else	48	# else
40	# include "config.h"	49	# include "config.h"
51	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	61	# define EV_USE_MONOTONIC 0
53	# endif	62	# endif
54	# ifndef EV_USE_REALTIME	63	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	64	# define EV_USE_REALTIME 0
		65	# endif
		66	# endif
		67
		68	# ifndef EV_USE_NANOSLEEP
		69	# if HAVE_NANOSLEEP
		70	# define EV_USE_NANOSLEEP 1
		71	# else
		72	# define EV_USE_NANOSLEEP 0
56	# endif	73	# endif
57	# endif	74	# endif
58		75
59	# ifndef EV_USE_SELECT	76	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	77	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
102	# else	119	# else
103	# define EV_USE_INOTIFY 0	120	# define EV_USE_INOTIFY 0
104	# endif	121	# endif
105	# endif	122	# endif
106		123
		124	# ifndef EV_USE_EVENTFD
		125	# if HAVE_EVENTFD
		126	# define EV_USE_EVENTFD 1
		127	# else
		128	# define EV_USE_EVENTFD 0
		129	# endif
		130	# endif
		131
107	#endif	132	#endif
108		133
109	#include <math.h>	134	#include <math.h>
110	#include <stdlib.h>	135	#include <stdlib.h>
111	#include <fcntl.h>	136	#include <fcntl.h>
…		…
136	# ifndef EV_SELECT_IS_WINSOCKET	161	# ifndef EV_SELECT_IS_WINSOCKET
137	# define EV_SELECT_IS_WINSOCKET 1	162	# define EV_SELECT_IS_WINSOCKET 1
138	# endif	163	# endif
139	#endif	164	#endif
140		165
141	/**/	166	/* this block tries to deduce configuration from header-defined symbols and defaults */
142		167
143	#ifndef EV_USE_MONOTONIC	168	#ifndef EV_USE_MONOTONIC
144	# define EV_USE_MONOTONIC 0	169	# define EV_USE_MONOTONIC 0
145	#endif	170	#endif
146		171
147	#ifndef EV_USE_REALTIME	172	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	173	# define EV_USE_REALTIME 0
		174	#endif
		175
		176	#ifndef EV_USE_NANOSLEEP
		177	# define EV_USE_NANOSLEEP 0
149	#endif	178	#endif
150		179
151	#ifndef EV_USE_SELECT	180	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	181	# define EV_USE_SELECT 1
153	#endif	182	#endif
…		…
159	# define EV_USE_POLL 1	188	# define EV_USE_POLL 1
160	# endif	189	# endif
161	#endif	190	#endif
162		191
163	#ifndef EV_USE_EPOLL	192	#ifndef EV_USE_EPOLL
		193	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		194	# define EV_USE_EPOLL 1
		195	# else
164	# define EV_USE_EPOLL 0	196	# define EV_USE_EPOLL 0
		197	# endif
165	#endif	198	#endif
166		199
167	#ifndef EV_USE_KQUEUE	200	#ifndef EV_USE_KQUEUE
168	# define EV_USE_KQUEUE 0	201	# define EV_USE_KQUEUE 0
169	#endif	202	#endif
…		…
171	#ifndef EV_USE_PORT	204	#ifndef EV_USE_PORT
172	# define EV_USE_PORT 0	205	# define EV_USE_PORT 0
173	#endif	206	#endif
174		207
175	#ifndef EV_USE_INOTIFY	208	#ifndef EV_USE_INOTIFY
		209	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		210	# define EV_USE_INOTIFY 1
		211	# else
176	# define EV_USE_INOTIFY 0	212	# define EV_USE_INOTIFY 0
		213	# endif
177	#endif	214	#endif
178		215
179	#ifndef EV_PID_HASHSIZE	216	#ifndef EV_PID_HASHSIZE
180	# if EV_MINIMAL	217	# if EV_MINIMAL
181	# define EV_PID_HASHSIZE 1	218	# define EV_PID_HASHSIZE 1
…		…
190	# else	227	# else
191	# define EV_INOTIFY_HASHSIZE 16	228	# define EV_INOTIFY_HASHSIZE 16
192	# endif	229	# endif
193	#endif	230	#endif
194		231
195	/**/	232	#ifndef EV_USE_EVENTFD
		233	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		234	# define EV_USE_EVENTFD 1
		235	# else
		236	# define EV_USE_EVENTFD 0
		237	# endif
		238	#endif
		239
		240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		241
197	#ifndef CLOCK_MONOTONIC	242	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	243	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	244	# define EV_USE_MONOTONIC 0
200	#endif	245	#endif
…		…
202	#ifndef CLOCK_REALTIME	247	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	248	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	249	# define EV_USE_REALTIME 0
205	#endif	250	#endif
206		251
		252	#if !EV_STAT_ENABLE
		253	# undef EV_USE_INOTIFY
		254	# define EV_USE_INOTIFY 0
		255	#endif
		256
		257	#if !EV_USE_NANOSLEEP
		258	# ifndef _WIN32
		259	# include <sys/select.h>
		260	# endif
		261	#endif
		262
		263	#if EV_USE_INOTIFY
		264	# include <sys/inotify.h>
		265	#endif
		266
207	#if EV_SELECT_IS_WINSOCKET	267	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	268	# include <winsock.h>
209	#endif	269	#endif
210		270
211	#if !EV_STAT_ENABLE	271	#if EV_USE_EVENTFD
212	# define EV_USE_INOTIFY 0	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	# include <stdint.h>
		274	# ifdef __cplusplus
		275	extern "C" {
213	#endif	276	# endif
214		277	int eventfd (unsigned int initval, int flags);
215	#if EV_USE_INOTIFY	278	# ifdef __cplusplus
216	# include <sys/inotify.h>	279	}
		280	# endif
217	#endif	281	#endif
218		282
219	/**/	283	/**/
		284
		285	/*
		286	* This is used to avoid floating point rounding problems.
		287	* It is added to ev_rt_now when scheduling periodics
		288	* to ensure progress, time-wise, even when rounding
		289	* errors are against us.
		290	* This value is good at least till the year 4000.
		291	* Better solutions welcome.
		292	*/
		293	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		294
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	295	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	296	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */	297	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
224		298
225	#if __GNUC__ >= 3	299	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	300	# define expect(expr,value) __builtin_expect ((expr),(value))
227	# define inline_size static inline /* inline for codesize */
228	# if EV_MINIMAL
229	# define noinline __attribute__ ((noinline))	301	# define noinline __attribute__ ((noinline))
230	# define inline_speed static noinline
231	# else
232	# define noinline
233	# define inline_speed static inline
234	# endif
235	#else	302	#else
236	# define expect(expr,value) (expr)	303	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	304	# define noinline
		305	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
		306	# define inline
		307	# endif
240	#endif	308	#endif
241		309
242	#define expect_false(expr) expect ((expr) != 0, 0)	310	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	311	#define expect_true(expr) expect ((expr) != 0, 1)
		312	#define inline_size static inline
		313
		314	#if EV_MINIMAL
		315	# define inline_speed static noinline
		316	#else
		317	# define inline_speed static inline
		318	#endif
244		319
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	320	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	321	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		322
248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	323	#define EMPTY /* required for microsofts broken pseudo-c compiler */
249	#define EMPTY2(a,b) /* used to suppress some warnings */	324	#define EMPTY2(a,b) /* used to suppress some warnings */
250		325
251	typedef ev_watcher *W;	326	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	327	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	328	typedef ev_watcher_time *WT;
254		329
		330	#if EV_USE_MONOTONIC
		331	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		332	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	333	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		334	#endif
256		335
257	#ifdef _WIN32	336	#ifdef _WIN32
258	# include "ev_win32.c"	337	# include "ev_win32.c"
259	#endif	338	#endif
260		339
…		…
281	perror (msg);	360	perror (msg);
282	abort ();	361	abort ();
283	}	362	}
284	}	363	}
285		364
		365	static void *
		366	ev_realloc_emul (void *ptr, long size)
		367	{
		368	/* some systems, notably openbsd and darwin, fail to properly
		369	* implement realloc (x, 0) (as required by both ansi c-98 and
		370	* the single unix specification, so work around them here.
		371	*/
		372
		373	if (size)
		374	return realloc (ptr, size);
		375
		376	free (ptr);
		377	return 0;
		378	}
		379
286	static void (alloc)(void *ptr, size_t size) = realloc;	380	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
287		381
288	void	382	void
289	ev_set_allocator (void (cb)(void *ptr, size_t size))	383	ev_set_allocator (void (cb)(void *ptr, long size))
290	{	384	{
291	alloc = cb;	385	alloc = cb;
292	}	386	}
293		387
294	inline_speed void *	388	inline_speed void *
295	ev_realloc (void *ptr, size_t size)	389	ev_realloc (void *ptr, long size)
296	{	390	{
297	ptr = alloc (ptr, size);	391	ptr = alloc (ptr, size);
298		392
299	if (!ptr && size)	393	if (!ptr && size)
300	{	394	{
301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);	395	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
302	abort ();	396	abort ();
303	}	397	}
304		398
305	return ptr;	399	return ptr;
306	}	400	}
…		…
324	{	418	{
325	W w;	419	W w;
326	int events;	420	int events;
327	} ANPENDING;	421	} ANPENDING;
328		422
		423	#if EV_USE_INOTIFY
329	typedef struct	424	typedef struct
330	{	425	{
331	#if EV_USE_INOTIFY
332	WL head;	426	WL head;
333	#endif
334	} ANFS;	427	} ANFS;
		428	#endif
335		429
336	#if EV_MULTIPLICITY	430	#if EV_MULTIPLICITY
337		431
338	struct ev_loop	432	struct ev_loop
339	{	433	{
…		…
396	{	490	{
397	return ev_rt_now;	491	return ev_rt_now;
398	}	492	}
399	#endif	493	#endif
400		494
401	#define array_roundsize(type,n) (((n) \| 4) & ~3)	495	void
		496	ev_sleep (ev_tstamp delay)
		497	{
		498	if (delay > 0.)
		499	{
		500	#if EV_USE_NANOSLEEP
		501	struct timespec ts;
		502
		503	ts.tv_sec = (time_t)delay;
		504	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		505
		506	nanosleep (&ts, 0);
		507	#elif defined(_WIN32)
		508	Sleep ((unsigned long)(delay * 1e3));
		509	#else
		510	struct timeval tv;
		511
		512	tv.tv_sec = (time_t)delay;
		513	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		514
		515	select (0, 0, 0, 0, &tv);
		516	#endif
		517	}
		518	}
		519
		520	/*****************************************************************************/
		521
		522	int inline_size
		523	array_nextsize (int elem, int cur, int cnt)
		524	{
		525	int ncur = cur + 1;
		526
		527	do
		528	ncur <<= 1;
		529	while (cnt > ncur);
		530
		531	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		532	if (elem * ncur > 4096)
		533	{
		534	ncur *= elem;
		535	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		536	ncur = ncur - sizeof (void ) 4;
		537	ncur /= elem;
		538	}
		539
		540	return ncur;
		541	}
		542
		543	static noinline void *
		544	array_realloc (int elem, void base, int cur, int cnt)
		545	{
		546	cur = array_nextsize (elem, cur, cnt);
		547	return ev_realloc (base, elem * *cur);
		548	}
402		549
403	#define array_needsize(type,base,cur,cnt,init) \	550	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	551	if (expect_false ((cnt) > (cur))) \
405	{ \	552	{ \
406	int newcnt = cur; \	553	int ocur_ = (cur); \
407	do \	554	(base) = (type *)array_realloc \
408	{ \	555	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	556	init ((base) + (ocur_), (cur) - ocur_); \
410	} \
411	while ((cnt) > newcnt); \
412	\
413	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
414	init (base + cur, newcnt - cur); \
415	cur = newcnt; \
416	}	557	}
417		558
		559	#if 0
418	#define array_slim(type,stem) \	560	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	561	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	562	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	563	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	564	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	565	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
424	}	566	}
		567	#endif
425		568
426	#define array_free(stem, idx) \	569	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	570	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		571
429	/*****************************************************************************/	572	/*****************************************************************************/
430		573
431	void noinline	574	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	575	ev_feed_event (EV_P_ void *w, int revents)
433	{	576	{
434	W w_ = (W)w;	577	W w_ = (W)w;
		578	int pri = ABSPRI (w_);
435		579
436	if (expect_false (w_->pending))	580	if (expect_false (w_->pending))
		581	pendings [pri][w_->pending - 1].events \|= revents;
		582	else
437	{	583	{
		584	w_->pending = ++pendingcnt [pri];
		585	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		586	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	587	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	588	}
441
442	w_->pending = ++pendingcnt [ABSPRI (w_)];
443	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
444	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
445	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
446	}	589	}
447		590
448	void inline_size	591	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	592	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	593	{
451	int i;	594	int i;
452		595
453	for (i = 0; i < eventcnt; ++i)	596	for (i = 0; i < eventcnt; ++i)
…		…
485	}	628	}
486		629
487	void	630	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	631	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	632	{
		633	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	634	fd_event (EV_A_ fd, revents);
491	}	635	}
492		636
493	void inline_size	637	void inline_size
494	fd_reify (EV_P)	638	fd_reify (EV_P)
495	{	639	{
…		…
499	{	643	{
500	int fd = fdchanges [i];	644	int fd = fdchanges [i];
501	ANFD *anfd = anfds + fd;	645	ANFD *anfd = anfds + fd;
502	ev_io *w;	646	ev_io *w;
503		647
504	int events = 0;	648	unsigned char events = 0;
505		649
506	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	650	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
507	events \|= w->events;	651	events \|= (unsigned char)w->events;
508		652
509	#if EV_SELECT_IS_WINSOCKET	653	#if EV_SELECT_IS_WINSOCKET
510	if (events)	654	if (events)
511	{	655	{
512	unsigned long argp;	656	unsigned long argp;
		657	#ifdef EV_FD_TO_WIN32_HANDLE
		658	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		659	#else
513	anfd->handle = _get_osfhandle (fd);	660	anfd->handle = _get_osfhandle (fd);
		661	#endif
514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	662	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515	}	663	}
516	#endif	664	#endif
517		665
		666	{
		667	unsigned char o_events = anfd->events;
		668	unsigned char o_reify = anfd->reify;
		669
518	anfd->reify = 0;	670	anfd->reify = 0;
519
520	backend_modify (EV_A_ fd, anfd->events, events);
521	anfd->events = events;	671	anfd->events = events;
		672
		673	if (o_events != events \|\| o_reify & EV_IOFDSET)
		674	backend_modify (EV_A_ fd, o_events, events);
		675	}
522	}	676	}
523		677
524	fdchangecnt = 0;	678	fdchangecnt = 0;
525	}	679	}
526		680
527	void inline_size	681	void inline_size
528	fd_change (EV_P_ int fd)	682	fd_change (EV_P_ int fd, int flags)
529	{	683	{
530	if (expect_false (anfds [fd].reify))	684	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	685	anfds [fd].reify \|= flags;
534		686
		687	if (expect_true (!reify))
		688	{
535	++fdchangecnt;	689	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	690	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	691	fdchanges [fdchangecnt - 1] = fd;
		692	}
538	}	693	}
539		694
540	void inline_speed	695	void inline_speed
541	fd_kill (EV_P_ int fd)	696	fd_kill (EV_P_ int fd)
542	{	697	{
…		…
589	static void noinline	744	static void noinline
590	fd_rearm_all (EV_P)	745	fd_rearm_all (EV_P)
591	{	746	{
592	int fd;	747	int fd;
593		748
594	/* this should be highly optimised to not do anything but set a flag */
595	for (fd = 0; fd < anfdmax; ++fd)	749	for (fd = 0; fd < anfdmax; ++fd)
596	if (anfds [fd].events)	750	if (anfds [fd].events)
597	{	751	{
598	anfds [fd].events = 0;	752	anfds [fd].events = 0;
599	fd_change (EV_A_ fd);	753	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
600	}	754	}
601	}	755	}
602		756
603	/*****************************************************************************/	757	/*****************************************************************************/
604		758
605	void inline_speed	759	void inline_speed
606	upheap (WT *heap, int k)	760	upheap (WT *heap, int k)
607	{	761	{
608	WT w = heap [k];	762	WT w = heap [k];
609		763
610	while (k && heap [k >> 1]->at > w->at)	764	while (k)
611	{	765	{
		766	int p = (k - 1) >> 1;
		767
		768	if (heap [p]->at <= w->at)
		769	break;
		770
612	heap [k] = heap [k >> 1];	771	heap [k] = heap [p];
613	((W)heap [k])->active = k + 1;	772	((W)heap [k])->active = k + 1;
614	k >>= 1;	773	k = p;
615	}	774	}
616		775
617	heap [k] = w;	776	heap [k] = w;
618	((W)heap [k])->active = k + 1;	777	((W)heap [k])->active = k + 1;
619
620	}	778	}
621		779
622	void inline_speed	780	void inline_speed
623	downheap (WT *heap, int N, int k)	781	downheap (WT *heap, int N, int k)
624	{	782	{
625	WT w = heap [k];	783	WT w = heap [k];
626		784
627	while (k < (N >> 1))	785	for (;;)
628	{	786	{
629	int j = k << 1;	787	int c = (k << 1) + 1;
630		788
631	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	789	if (c >= N)
632	++j;
633
634	if (w->at <= heap [j]->at)
635	break;	790	break;
636		791
		792	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		793	? 1 : 0;
		794
		795	if (w->at <= heap [c]->at)
		796	break;
		797
637	heap [k] = heap [j];	798	heap [k] = heap [c];
638	((W)heap [k])->active = k + 1;	799	((W)heap [k])->active = k + 1;
		800
639	k = j;	801	k = c;
640	}	802	}
641		803
642	heap [k] = w;	804	heap [k] = w;
643	((W)heap [k])->active = k + 1;	805	((W)heap [k])->active = k + 1;
644	}	806	}
…		…
653	/*****************************************************************************/	815	/*****************************************************************************/
654		816
655	typedef struct	817	typedef struct
656	{	818	{
657	WL head;	819	WL head;
658	sig_atomic_t volatile gotsig;	820	EV_ATOMIC_T gotsig;
659	} ANSIG;	821	} ANSIG;
660		822
661	static ANSIG *signals;	823	static ANSIG *signals;
662	static int signalmax;	824	static int signalmax;
663		825
664	static int sigpipe [2];	826	static EV_ATOMIC_T gotsig;
665	static sig_atomic_t volatile gotsig;
666	static ev_io sigev;
667		827
668	void inline_size	828	void inline_size
669	signals_init (ANSIG *base, int count)	829	signals_init (ANSIG *base, int count)
670	{	830	{
671	while (count--)	831	while (count--)
…		…
675		835
676	++base;	836	++base;
677	}	837	}
678	}	838	}
679		839
680	static void	840	/*****************************************************************************/
681	sighandler (int signum)
682	{
683	#if _WIN32
684	signal (signum, sighandler);
685	#endif
686		841
687	signals [signum - 1].gotsig = 1;
688
689	if (!gotsig)
690	{
691	int old_errno = errno;
692	gotsig = 1;
693	write (sigpipe [1], &signum, 1);
694	errno = old_errno;
695	}
696	}
697
698	void noinline
699	ev_feed_signal_event (EV_P_ int signum)
700	{
701	WL w;
702
703	#if EV_MULTIPLICITY
704	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
705	#endif
706
707	--signum;
708
709	if (signum < 0 \|\| signum >= signalmax)
710	return;
711
712	signals [signum].gotsig = 0;
713
714	for (w = signals [signum].head; w; w = w->next)
715	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
716	}
717
718	static void
719	sigcb (EV_P_ ev_io *iow, int revents)
720	{
721	int signum;
722
723	read (sigpipe [0], &revents, 1);
724	gotsig = 0;
725
726	for (signum = signalmax; signum--; )
727	if (signals [signum].gotsig)
728	ev_feed_signal_event (EV_A_ signum + 1);
729	}
730
731	void inline_size	842	void inline_speed
732	fd_intern (int fd)	843	fd_intern (int fd)
733	{	844	{
734	#ifdef _WIN32	845	#ifdef _WIN32
735	int arg = 1;	846	int arg = 1;
736	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	847	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
739	fcntl (fd, F_SETFL, O_NONBLOCK);	850	fcntl (fd, F_SETFL, O_NONBLOCK);
740	#endif	851	#endif
741	}	852	}
742		853
743	static void noinline	854	static void noinline
744	siginit (EV_P)	855	evpipe_init (EV_P)
745	{	856	{
		857	if (!ev_is_active (&pipeev))
		858	{
		859	#if EV_USE_EVENTFD
		860	if ((evfd = eventfd (0, 0)) >= 0)
		861	{
		862	evpipe [0] = -1;
		863	fd_intern (evfd);
		864	ev_io_set (&pipeev, evfd, EV_READ);
		865	}
		866	else
		867	#endif
		868	{
		869	while (pipe (evpipe))
		870	syserr ("(libev) error creating signal/async pipe");
		871
746	fd_intern (sigpipe [0]);	872	fd_intern (evpipe [0]);
747	fd_intern (sigpipe [1]);	873	fd_intern (evpipe [1]);
		874	ev_io_set (&pipeev, evpipe [0], EV_READ);
		875	}
748		876
749	ev_io_set (&sigev, sigpipe [0], EV_READ);
750	ev_io_start (EV_A_ &sigev);	877	ev_io_start (EV_A_ &pipeev);
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	878	ev_unref (EV_A); /* watcher should not keep loop alive */
		879	}
		880	}
		881
		882	void inline_size
		883	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		884	{
		885	if (!*flag)
		886	{
		887	int old_errno = errno; /* save errno because write might clobber it */
		888
		889	*flag = 1;
		890
		891	#if EV_USE_EVENTFD
		892	if (evfd >= 0)
		893	{
		894	uint64_t counter = 1;
		895	write (evfd, &counter, sizeof (uint64_t));
		896	}
		897	else
		898	#endif
		899	write (evpipe [1], &old_errno, 1);
		900
		901	errno = old_errno;
		902	}
		903	}
		904
		905	static void
		906	pipecb (EV_P_ ev_io *iow, int revents)
		907	{
		908	#if EV_USE_EVENTFD
		909	if (evfd >= 0)
		910	{
		911	uint64_t counter = 1;
		912	read (evfd, &counter, sizeof (uint64_t));
		913	}
		914	else
		915	#endif
		916	{
		917	char dummy;
		918	read (evpipe [0], &dummy, 1);
		919	}
		920
		921	if (gotsig && ev_is_default_loop (EV_A))
		922	{
		923	int signum;
		924	gotsig = 0;
		925
		926	for (signum = signalmax; signum--; )
		927	if (signals [signum].gotsig)
		928	ev_feed_signal_event (EV_A_ signum + 1);
		929	}
		930
		931	#if EV_ASYNC_ENABLE
		932	if (gotasync)
		933	{
		934	int i;
		935	gotasync = 0;
		936
		937	for (i = asynccnt; i--; )
		938	if (asyncs [i]->sent)
		939	{
		940	asyncs [i]->sent = 0;
		941	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		942	}
		943	}
		944	#endif
752	}	945	}
753		946
754	/*****************************************************************************/	947	/*****************************************************************************/
755		948
		949	static void
		950	ev_sighandler (int signum)
		951	{
		952	#if EV_MULTIPLICITY
		953	struct ev_loop *loop = &default_loop_struct;
		954	#endif
		955
		956	#if _WIN32
		957	signal (signum, ev_sighandler);
		958	#endif
		959
		960	signals [signum - 1].gotsig = 1;
		961	evpipe_write (EV_A_ &gotsig);
		962	}
		963
		964	void noinline
		965	ev_feed_signal_event (EV_P_ int signum)
		966	{
		967	WL w;
		968
		969	#if EV_MULTIPLICITY
		970	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		971	#endif
		972
		973	--signum;
		974
		975	if (signum < 0 \|\| signum >= signalmax)
		976	return;
		977
		978	signals [signum].gotsig = 0;
		979
		980	for (w = signals [signum].head; w; w = w->next)
		981	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		982	}
		983
		984	/*****************************************************************************/
		985
756	static ev_child *childs [EV_PID_HASHSIZE];	986	static WL childs [EV_PID_HASHSIZE];
757		987
758	#ifndef _WIN32	988	#ifndef _WIN32
759		989
760	static ev_signal childev;	990	static ev_signal childev;
761		991
		992	#ifndef WIFCONTINUED
		993	# define WIFCONTINUED(status) 0
		994	#endif
		995
762	void inline_speed	996	void inline_speed
763	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	997	child_reap (EV_P_ int chain, int pid, int status)
764	{	998	{
765	ev_child *w;	999	ev_child *w;
		1000	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
766		1001
767	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1002	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1003	{
768	if (w->pid == pid \|\| !w->pid)	1004	if ((w->pid == pid \|\| !w->pid)
		1005	&& (!traced \|\| (w->flags & 1)))
769	{	1006	{
770	ev_priority (w) = ev_priority (sw); /* need to do it now */	1007	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
771	w->rpid = pid;	1008	w->rpid = pid;
772	w->rstatus = status;	1009	w->rstatus = status;
773	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1010	ev_feed_event (EV_A_ (W)w, EV_CHILD);
774	}	1011	}
		1012	}
775	}	1013	}
776		1014
777	#ifndef WCONTINUED	1015	#ifndef WCONTINUED
778	# define WCONTINUED 0	1016	# define WCONTINUED 0
779	#endif	1017	#endif
…		…
788	if (!WCONTINUED	1026	if (!WCONTINUED
789	\|\| errno != EINVAL	1027	\|\| errno != EINVAL
790	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1028	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
791	return;	1029	return;
792		1030
793	/* make sure we are called again until all childs have been reaped */	1031	/* make sure we are called again until all children have been reaped */
794	/* we need to do it this way so that the callback gets called before we continue */	1032	/* we need to do it this way so that the callback gets called before we continue */
795	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1033	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
796		1034
797	child_reap (EV_A_ sw, pid, pid, status);	1035	child_reap (EV_A_ pid, pid, status);
798	if (EV_PID_HASHSIZE > 1)	1036	if (EV_PID_HASHSIZE > 1)
799	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1037	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
800	}	1038	}
801		1039
802	#endif	1040	#endif
803		1041
804	/*****************************************************************************/	1042	/*****************************************************************************/
…		…
876	}	1114	}
877		1115
878	unsigned int	1116	unsigned int
879	ev_embeddable_backends (void)	1117	ev_embeddable_backends (void)
880	{	1118	{
881	return EVBACKEND_EPOLL	1119	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
882	\| EVBACKEND_KQUEUE	1120
883	\| EVBACKEND_PORT;	1121	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1122	/* please fix it and tell me how to detect the fix */
		1123	flags &= ~EVBACKEND_EPOLL;
		1124
		1125	return flags;
884	}	1126	}
885		1127
886	unsigned int	1128	unsigned int
887	ev_backend (EV_P)	1129	ev_backend (EV_P)
888	{	1130	{
889	return backend;	1131	return backend;
		1132	}
		1133
		1134	unsigned int
		1135	ev_loop_count (EV_P)
		1136	{
		1137	return loop_count;
		1138	}
		1139
		1140	void
		1141	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1142	{
		1143	io_blocktime = interval;
		1144	}
		1145
		1146	void
		1147	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1148	{
		1149	timeout_blocktime = interval;
890	}	1150	}
891		1151
892	static void noinline	1152	static void noinline
893	loop_init (EV_P_ unsigned int flags)	1153	loop_init (EV_P_ unsigned int flags)
894	{	1154	{
…		…
900	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1160	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
901	have_monotonic = 1;	1161	have_monotonic = 1;
902	}	1162	}
903	#endif	1163	#endif
904		1164
905	ev_rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
906	mn_now = get_clock ();	1166	mn_now = get_clock ();
907	now_floor = mn_now;	1167	now_floor = mn_now;
908	rtmn_diff = ev_rt_now - mn_now;	1168	rtmn_diff = ev_rt_now - mn_now;
		1169
		1170	io_blocktime = 0.;
		1171	timeout_blocktime = 0.;
		1172	backend = 0;
		1173	backend_fd = -1;
		1174	gotasync = 0;
		1175	#if EV_USE_INOTIFY
		1176	fs_fd = -2;
		1177	#endif
		1178
		1179	/* pid check not overridable via env */
		1180	#ifndef _WIN32
		1181	if (flags & EVFLAG_FORKCHECK)
		1182	curpid = getpid ();
		1183	#endif
909		1184
910	if (!(flags & EVFLAG_NOENV)	1185	if (!(flags & EVFLAG_NOENV)
911	&& !enable_secure ()	1186	&& !enable_secure ()
912	&& getenv ("LIBEV_FLAGS"))	1187	&& getenv ("LIBEV_FLAGS"))
913	flags = atoi (getenv ("LIBEV_FLAGS"));	1188	flags = atoi (getenv ("LIBEV_FLAGS"));
914		1189
915	if (!(flags & 0x0000ffffUL))	1190	if (!(flags & 0x0000ffffU))
916	flags \|= ev_recommended_backends ();	1191	flags \|= ev_recommended_backends ();
917
918	backend = 0;
919	backend_fd = -1;
920	#if EV_USE_INOTIFY
921	fs_fd = -2;
922	#endif
923		1192
924	#if EV_USE_PORT	1193	#if EV_USE_PORT
925	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1194	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
926	#endif	1195	#endif
927	#if EV_USE_KQUEUE	1196	#if EV_USE_KQUEUE
…		…
935	#endif	1204	#endif
936	#if EV_USE_SELECT	1205	#if EV_USE_SELECT
937	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1206	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
938	#endif	1207	#endif
939		1208
940	ev_init (&sigev, sigcb);	1209	ev_init (&pipeev, pipecb);
941	ev_set_priority (&sigev, EV_MAXPRI);	1210	ev_set_priority (&pipeev, EV_MAXPRI);
942	}	1211	}
943	}	1212	}
944		1213
945	static void noinline	1214	static void noinline
946	loop_destroy (EV_P)	1215	loop_destroy (EV_P)
947	{	1216	{
948	int i;	1217	int i;
		1218
		1219	if (ev_is_active (&pipeev))
		1220	{
		1221	ev_ref (EV_A); /* signal watcher */
		1222	ev_io_stop (EV_A_ &pipeev);
		1223
		1224	#if EV_USE_EVENTFD
		1225	if (evfd >= 0)
		1226	close (evfd);
		1227	#endif
		1228
		1229	if (evpipe [0] >= 0)
		1230	{
		1231	close (evpipe [0]);
		1232	close (evpipe [1]);
		1233	}
		1234	}
949		1235
950	#if EV_USE_INOTIFY	1236	#if EV_USE_INOTIFY
951	if (fs_fd >= 0)	1237	if (fs_fd >= 0)
952	close (fs_fd);	1238	close (fs_fd);
953	#endif	1239	#endif
…		…
970	#if EV_USE_SELECT	1256	#if EV_USE_SELECT
971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1257	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
972	#endif	1258	#endif
973		1259
974	for (i = NUMPRI; i--; )	1260	for (i = NUMPRI; i--; )
		1261	{
975	array_free (pending, [i]);	1262	array_free (pending, [i]);
		1263	#if EV_IDLE_ENABLE
		1264	array_free (idle, [i]);
		1265	#endif
		1266	}
		1267
		1268	ev_free (anfds); anfdmax = 0;
976		1269
977	/* have to use the microsoft-never-gets-it-right macro */	1270	/* have to use the microsoft-never-gets-it-right macro */
978	array_free (fdchange, EMPTY0);	1271	array_free (fdchange, EMPTY);
979	array_free (timer, EMPTY0);	1272	array_free (timer, EMPTY);
980	#if EV_PERIODIC_ENABLE	1273	#if EV_PERIODIC_ENABLE
981	array_free (periodic, EMPTY0);	1274	array_free (periodic, EMPTY);
982	#endif	1275	#endif
		1276	#if EV_FORK_ENABLE
983	array_free (idle, EMPTY0);	1277	array_free (fork, EMPTY);
		1278	#endif
984	array_free (prepare, EMPTY0);	1279	array_free (prepare, EMPTY);
985	array_free (check, EMPTY0);	1280	array_free (check, EMPTY);
		1281	#if EV_ASYNC_ENABLE
		1282	array_free (async, EMPTY);
		1283	#endif
986		1284
987	backend = 0;	1285	backend = 0;
988	}	1286	}
		1287
		1288	#if EV_USE_INOTIFY
		1289	void inline_size infy_fork (EV_P);
		1290	#endif
989		1291
990	void inline_size	1292	void inline_size
991	loop_fork (EV_P)	1293	loop_fork (EV_P)
992	{	1294	{
993	#if EV_USE_PORT	1295	#if EV_USE_PORT
…		…
997	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1299	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
998	#endif	1300	#endif
999	#if EV_USE_EPOLL	1301	#if EV_USE_EPOLL
1000	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1302	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1001	#endif	1303	#endif
		1304	#if EV_USE_INOTIFY
		1305	infy_fork (EV_A);
		1306	#endif
1002		1307
1003	if (ev_is_active (&sigev))	1308	if (ev_is_active (&pipeev))
1004	{	1309	{
1005	/* default loop */	1310	/* this "locks" the handlers against writing to the pipe */
		1311	/* while we modify the fd vars */
		1312	gotsig = 1;
		1313	#if EV_ASYNC_ENABLE
		1314	gotasync = 1;
		1315	#endif
1006		1316
1007	ev_ref (EV_A);	1317	ev_ref (EV_A);
1008	ev_io_stop (EV_A_ &sigev);	1318	ev_io_stop (EV_A_ &pipeev);
		1319
		1320	#if EV_USE_EVENTFD
		1321	if (evfd >= 0)
		1322	close (evfd);
		1323	#endif
		1324
		1325	if (evpipe [0] >= 0)
		1326	{
1009	close (sigpipe [0]);	1327	close (evpipe [0]);
1010	close (sigpipe [1]);	1328	close (evpipe [1]);
		1329	}
1011		1330
1012	while (pipe (sigpipe))
1013	syserr ("(libev) error creating pipe");
1014
1015	siginit (EV_A);	1331	evpipe_init (EV_A);
		1332	/* now iterate over everything, in case we missed something */
		1333	pipecb (EV_A_ &pipeev, EV_READ);
1016	}	1334	}
1017		1335
1018	postfork = 0;	1336	postfork = 0;
1019	}	1337	}
1020		1338
…		…
1042	}	1360	}
1043		1361
1044	void	1362	void
1045	ev_loop_fork (EV_P)	1363	ev_loop_fork (EV_P)
1046	{	1364	{
1047	postfork = 1;	1365	postfork = 1; /* must be in line with ev_default_fork */
1048	}	1366	}
1049		1367
1050	#endif	1368	#endif
1051		1369
1052	#if EV_MULTIPLICITY	1370	#if EV_MULTIPLICITY
…		…
1055	#else	1373	#else
1056	int	1374	int
1057	ev_default_loop (unsigned int flags)	1375	ev_default_loop (unsigned int flags)
1058	#endif	1376	#endif
1059	{	1377	{
1060	if (sigpipe [0] == sigpipe [1])
1061	if (pipe (sigpipe))
1062	return 0;
1063
1064	if (!ev_default_loop_ptr)	1378	if (!ev_default_loop_ptr)
1065	{	1379	{
1066	#if EV_MULTIPLICITY	1380	#if EV_MULTIPLICITY
1067	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1381	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1068	#else	1382	#else
…		…
1071		1385
1072	loop_init (EV_A_ flags);	1386	loop_init (EV_A_ flags);
1073		1387
1074	if (ev_backend (EV_A))	1388	if (ev_backend (EV_A))
1075	{	1389	{
1076	siginit (EV_A);
1077
1078	#ifndef _WIN32	1390	#ifndef _WIN32
1079	ev_signal_init (&childev, childcb, SIGCHLD);	1391	ev_signal_init (&childev, childcb, SIGCHLD);
1080	ev_set_priority (&childev, EV_MAXPRI);	1392	ev_set_priority (&childev, EV_MAXPRI);
1081	ev_signal_start (EV_A_ &childev);	1393	ev_signal_start (EV_A_ &childev);
1082	ev_unref (EV_A); /* child watcher should not keep loop alive */	1394	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1099	#ifndef _WIN32	1411	#ifndef _WIN32
1100	ev_ref (EV_A); /* child watcher */	1412	ev_ref (EV_A); /* child watcher */
1101	ev_signal_stop (EV_A_ &childev);	1413	ev_signal_stop (EV_A_ &childev);
1102	#endif	1414	#endif
1103		1415
1104	ev_ref (EV_A); /* signal watcher */
1105	ev_io_stop (EV_A_ &sigev);
1106
1107	close (sigpipe [0]); sigpipe [0] = 0;
1108	close (sigpipe [1]); sigpipe [1] = 0;
1109
1110	loop_destroy (EV_A);	1416	loop_destroy (EV_A);
1111	}	1417	}
1112		1418
1113	void	1419	void
1114	ev_default_fork (void)	1420	ev_default_fork (void)
…		…
1116	#if EV_MULTIPLICITY	1422	#if EV_MULTIPLICITY
1117	struct ev_loop *loop = ev_default_loop_ptr;	1423	struct ev_loop *loop = ev_default_loop_ptr;
1118	#endif	1424	#endif
1119		1425
1120	if (backend)	1426	if (backend)
1121	postfork = 1;	1427	postfork = 1; /* must be in line with ev_loop_fork */
1122	}	1428	}
1123		1429
1124	/*****************************************************************************/	1430	/*****************************************************************************/
1125		1431
1126	int inline_size	1432	void
1127	any_pending (EV_P)	1433	ev_invoke (EV_P_ void *w, int revents)
1128	{	1434	{
1129	int pri;	1435	EV_CB_INVOKE ((W)w, revents);
1130
1131	for (pri = NUMPRI; pri--; )
1132	if (pendingcnt [pri])
1133	return 1;
1134
1135	return 0;
1136	}	1436	}
1137		1437
1138	void inline_speed	1438	void inline_speed
1139	call_pending (EV_P)	1439	call_pending (EV_P)
1140	{	1440	{
…		…
1158	void inline_size	1458	void inline_size
1159	timers_reify (EV_P)	1459	timers_reify (EV_P)
1160	{	1460	{
1161	while (timercnt && ((WT)timers [0])->at <= mn_now)	1461	while (timercnt && ((WT)timers [0])->at <= mn_now)
1162	{	1462	{
1163	ev_timer *w = timers [0];	1463	ev_timer w = (ev_timer )timers [0];
1164		1464
1165	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1465	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1166		1466
1167	/* first reschedule or stop timer */	1467	/* first reschedule or stop timer */
1168	if (w->repeat)	1468	if (w->repeat)
…		…
1171		1471
1172	((WT)w)->at += w->repeat;	1472	((WT)w)->at += w->repeat;
1173	if (((WT)w)->at < mn_now)	1473	if (((WT)w)->at < mn_now)
1174	((WT)w)->at = mn_now;	1474	((WT)w)->at = mn_now;
1175		1475
1176	downheap ((WT *)timers, timercnt, 0);	1476	downheap (timers, timercnt, 0);
1177	}	1477	}
1178	else	1478	else
1179	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1479	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1180		1480
1181	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1481	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1186	void inline_size	1486	void inline_size
1187	periodics_reify (EV_P)	1487	periodics_reify (EV_P)
1188	{	1488	{
1189	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1489	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1190	{	1490	{
1191	ev_periodic *w = periodics [0];	1491	ev_periodic w = (ev_periodic )periodics [0];
1192		1492
1193	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1493	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1194		1494
1195	/* first reschedule or stop timer */	1495	/* first reschedule or stop timer */
1196	if (w->reschedule_cb)	1496	if (w->reschedule_cb)
1197	{	1497	{
1198	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1199	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1499	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1200	downheap ((WT *)periodics, periodiccnt, 0);	1500	downheap (periodics, periodiccnt, 0);
1201	}	1501	}
1202	else if (w->interval)	1502	else if (w->interval)
1203	{	1503	{
1204	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1504	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1505	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1205	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1506	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1206	downheap ((WT *)periodics, periodiccnt, 0);	1507	downheap (periodics, periodiccnt, 0);
1207	}	1508	}
1208	else	1509	else
1209	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1510	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1210		1511
1211	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1512	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1218	int i;	1519	int i;
1219		1520
1220	/* adjust periodics after time jump */	1521	/* adjust periodics after time jump */
1221	for (i = 0; i < periodiccnt; ++i)	1522	for (i = 0; i < periodiccnt; ++i)
1222	{	1523	{
1223	ev_periodic *w = periodics [i];	1524	ev_periodic w = (ev_periodic )periodics [i];
1224		1525
1225	if (w->reschedule_cb)	1526	if (w->reschedule_cb)
1226	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1527	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1227	else if (w->interval)	1528	else if (w->interval)
1228	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1529	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1229	}	1530	}
1230		1531
1231	/* now rebuild the heap */	1532	/* now rebuild the heap */
1232	for (i = periodiccnt >> 1; i--; )	1533	for (i = periodiccnt >> 1; i--; )
1233	downheap ((WT *)periodics, periodiccnt, i);	1534	downheap (periodics, periodiccnt, i);
1234	}	1535	}
1235	#endif	1536	#endif
1236		1537
		1538	#if EV_IDLE_ENABLE
1237	int inline_size	1539	void inline_size
1238	time_update_monotonic (EV_P)	1540	idle_reify (EV_P)
1239	{	1541	{
		1542	if (expect_false (idleall))
		1543	{
		1544	int pri;
		1545
		1546	for (pri = NUMPRI; pri--; )
		1547	{
		1548	if (pendingcnt [pri])
		1549	break;
		1550
		1551	if (idlecnt [pri])
		1552	{
		1553	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1554	break;
		1555	}
		1556	}
		1557	}
		1558	}
		1559	#endif
		1560
		1561	void inline_speed
		1562	time_update (EV_P_ ev_tstamp max_block)
		1563	{
		1564	int i;
		1565
		1566	#if EV_USE_MONOTONIC
		1567	if (expect_true (have_monotonic))
		1568	{
		1569	ev_tstamp odiff = rtmn_diff;
		1570
1240	mn_now = get_clock ();	1571	mn_now = get_clock ();
1241		1572
		1573	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1574	/* interpolate in the meantime */
1242	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1575	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1243	{	1576	{
1244	ev_rt_now = rtmn_diff + mn_now;	1577	ev_rt_now = rtmn_diff + mn_now;
1245	return 0;	1578	return;
1246	}	1579	}
1247	else	1580
1248	{
1249	now_floor = mn_now;	1581	now_floor = mn_now;
1250	ev_rt_now = ev_time ();	1582	ev_rt_now = ev_time ();
1251	return 1;
1252	}
1253	}
1254		1583
1255	void inline_size	1584	/* loop a few times, before making important decisions.
1256	time_update (EV_P)	1585	* on the choice of "4": one iteration isn't enough,
1257	{	1586	* in case we get preempted during the calls to
1258	int i;	1587	* ev_time and get_clock. a second call is almost guaranteed
1259		1588	* to succeed in that case, though. and looping a few more times
1260	#if EV_USE_MONOTONIC	1589	* doesn't hurt either as we only do this on time-jumps or
1261	if (expect_true (have_monotonic))	1590	* in the unlikely event of having been preempted here.
1262	{	1591	*/
1263	if (time_update_monotonic (EV_A))	1592	for (i = 4; --i; )
1264	{	1593	{
1265	ev_tstamp odiff = rtmn_diff;
1266
1267	/* loop a few times, before making important decisions.
1268	* on the choice of "4": one iteration isn't enough,
1269	* in case we get preempted during the calls to
1270	* ev_time and get_clock. a second call is almost guarenteed
1271	* to succeed in that case, though. and looping a few more times
1272	* doesn't hurt either as we only do this on time-jumps or
1273	* in the unlikely event of getting preempted here.
1274	*/
1275	for (i = 4; --i; )
1276	{
1277	rtmn_diff = ev_rt_now - mn_now;	1594	rtmn_diff = ev_rt_now - mn_now;
1278		1595
1279	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1596	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1280	return; /* all is well */	1597	return; /* all is well */
1281		1598
1282	ev_rt_now = ev_time ();	1599	ev_rt_now = ev_time ();
1283	mn_now = get_clock ();	1600	mn_now = get_clock ();
1284	now_floor = mn_now;	1601	now_floor = mn_now;
1285	}	1602	}
1286		1603
1287	# if EV_PERIODIC_ENABLE	1604	# if EV_PERIODIC_ENABLE
1288	periodics_reschedule (EV_A);	1605	periodics_reschedule (EV_A);
1289	# endif	1606	# endif
1290	/* no timer adjustment, as the monotonic clock doesn't jump */	1607	/* no timer adjustment, as the monotonic clock doesn't jump */
1291	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1608	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1292	}
1293	}	1609	}
1294	else	1610	else
1295	#endif	1611	#endif
1296	{	1612	{
1297	ev_rt_now = ev_time ();	1613	ev_rt_now = ev_time ();
1298		1614
1299	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1615	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1300	{	1616	{
1301	#if EV_PERIODIC_ENABLE	1617	#if EV_PERIODIC_ENABLE
1302	periodics_reschedule (EV_A);	1618	periodics_reschedule (EV_A);
1303	#endif	1619	#endif
1304
1305	/* adjust timers. this is easy, as the offset is the same for all */	1620	/* adjust timers. this is easy, as the offset is the same for all of them */
1306	for (i = 0; i < timercnt; ++i)	1621	for (i = 0; i < timercnt; ++i)
1307	((WT)timers [i])->at += ev_rt_now - mn_now;	1622	((WT)timers [i])->at += ev_rt_now - mn_now;
1308	}	1623	}
1309		1624
1310	mn_now = ev_rt_now;	1625	mn_now = ev_rt_now;
…		…
1326	static int loop_done;	1641	static int loop_done;
1327		1642
1328	void	1643	void
1329	ev_loop (EV_P_ int flags)	1644	ev_loop (EV_P_ int flags)
1330	{	1645	{
1331	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1646	loop_done = EVUNLOOP_CANCEL;
1332	? EVUNLOOP_ONE
1333	: EVUNLOOP_CANCEL;
1334		1647
1335	while (activecnt)	1648	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1649
		1650	do
1336	{	1651	{
1337	/* we might have forked, so reify kernel state if necessary */	1652	#ifndef _WIN32
		1653	if (expect_false (curpid)) /* penalise the forking check even more */
		1654	if (expect_false (getpid () != curpid))
		1655	{
		1656	curpid = getpid ();
		1657	postfork = 1;
		1658	}
		1659	#endif
		1660
1338	#if EV_FORK_ENABLE	1661	#if EV_FORK_ENABLE
		1662	/* we might have forked, so queue fork handlers */
1339	if (expect_false (postfork))	1663	if (expect_false (postfork))
1340	if (forkcnt)	1664	if (forkcnt)
1341	{	1665	{
1342	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1666	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1343	call_pending (EV_A);	1667	call_pending (EV_A);
1344	}	1668	}
1345	#endif	1669	#endif
1346		1670
1347	/* queue check watchers (and execute them) */	1671	/* queue prepare watchers (and execute them) */
1348	if (expect_false (preparecnt))	1672	if (expect_false (preparecnt))
1349	{	1673	{
1350	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1674	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1351	call_pending (EV_A);	1675	call_pending (EV_A);
1352	}	1676	}
1353		1677
		1678	if (expect_false (!activecnt))
		1679	break;
		1680
1354	/* we might have forked, so reify kernel state if necessary */	1681	/* we might have forked, so reify kernel state if necessary */
1355	if (expect_false (postfork))	1682	if (expect_false (postfork))
1356	loop_fork (EV_A);	1683	loop_fork (EV_A);
1357		1684
1358	/* update fd-related kernel structures */	1685	/* update fd-related kernel structures */
1359	fd_reify (EV_A);	1686	fd_reify (EV_A);
1360		1687
1361	/* calculate blocking time */	1688	/* calculate blocking time */
1362	{	1689	{
1363	double block;	1690	ev_tstamp waittime = 0.;
		1691	ev_tstamp sleeptime = 0.;
1364		1692
1365	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1693	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1366	block = 0.; /* do not block at all */
1367	else
1368	{	1694	{
1369	/* update time to cancel out callback processing overhead */	1695	/* update time to cancel out callback processing overhead */
1370	#if EV_USE_MONOTONIC
1371	if (expect_true (have_monotonic))
1372	time_update_monotonic (EV_A);	1696	time_update (EV_A_ 1e100);
1373	else
1374	#endif
1375	{
1376	ev_rt_now = ev_time ();
1377	mn_now = ev_rt_now;
1378	}
1379		1697
1380	block = MAX_BLOCKTIME;	1698	waittime = MAX_BLOCKTIME;
1381		1699
1382	if (timercnt)	1700	if (timercnt)
1383	{	1701	{
1384	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1702	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1385	if (block > to) block = to;	1703	if (waittime > to) waittime = to;
1386	}	1704	}
1387		1705
1388	#if EV_PERIODIC_ENABLE	1706	#if EV_PERIODIC_ENABLE
1389	if (periodiccnt)	1707	if (periodiccnt)
1390	{	1708	{
1391	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1709	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1392	if (block > to) block = to;	1710	if (waittime > to) waittime = to;
1393	}	1711	}
1394	#endif	1712	#endif
1395		1713
1396	if (expect_false (block < 0.)) block = 0.;	1714	if (expect_false (waittime < timeout_blocktime))
		1715	waittime = timeout_blocktime;
		1716
		1717	sleeptime = waittime - backend_fudge;
		1718
		1719	if (expect_true (sleeptime > io_blocktime))
		1720	sleeptime = io_blocktime;
		1721
		1722	if (sleeptime)
		1723	{
		1724	ev_sleep (sleeptime);
		1725	waittime -= sleeptime;
		1726	}
1397	}	1727	}
1398		1728
		1729	++loop_count;
1399	backend_poll (EV_A_ block);	1730	backend_poll (EV_A_ waittime);
		1731
		1732	/* update ev_rt_now, do magic */
		1733	time_update (EV_A_ waittime + sleeptime);
1400	}	1734	}
1401
1402	/* update ev_rt_now, do magic */
1403	time_update (EV_A);
1404		1735
1405	/* queue pending timers and reschedule them */	1736	/* queue pending timers and reschedule them */
1406	timers_reify (EV_A); /* relative timers called last */	1737	timers_reify (EV_A); /* relative timers called last */
1407	#if EV_PERIODIC_ENABLE	1738	#if EV_PERIODIC_ENABLE
1408	periodics_reify (EV_A); /* absolute timers called first */	1739	periodics_reify (EV_A); /* absolute timers called first */
1409	#endif	1740	#endif
1410		1741
		1742	#if EV_IDLE_ENABLE
1411	/* queue idle watchers unless other events are pending */	1743	/* queue idle watchers unless other events are pending */
1412	if (idlecnt && !any_pending (EV_A))	1744	idle_reify (EV_A);
1413	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1745	#endif
1414		1746
1415	/* queue check watchers, to be executed first */	1747	/* queue check watchers, to be executed first */
1416	if (expect_false (checkcnt))	1748	if (expect_false (checkcnt))
1417	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1749	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1418		1750
1419	call_pending (EV_A);	1751	call_pending (EV_A);
1420
1421	if (expect_false (loop_done))
1422	break;
1423	}	1752	}
		1753	while (expect_true (
		1754	activecnt
		1755	&& !loop_done
		1756	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1757	));
1424		1758
1425	if (loop_done == EVUNLOOP_ONE)	1759	if (loop_done == EVUNLOOP_ONE)
1426	loop_done = EVUNLOOP_CANCEL;	1760	loop_done = EVUNLOOP_CANCEL;
1427	}	1761	}
1428		1762
…		…
1455	head = &(*head)->next;	1789	head = &(*head)->next;
1456	}	1790	}
1457	}	1791	}
1458		1792
1459	void inline_speed	1793	void inline_speed
1460	ev_clear_pending (EV_P_ W w)	1794	clear_pending (EV_P_ W w)
1461	{	1795	{
1462	if (w->pending)	1796	if (w->pending)
1463	{	1797	{
1464	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1798	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1465	w->pending = 0;	1799	w->pending = 0;
1466	}	1800	}
1467	}	1801	}
1468		1802
		1803	int
		1804	ev_clear_pending (EV_P_ void *w)
		1805	{
		1806	W w_ = (W)w;
		1807	int pending = w_->pending;
		1808
		1809	if (expect_true (pending))
		1810	{
		1811	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1812	w_->pending = 0;
		1813	p->w = 0;
		1814	return p->events;
		1815	}
		1816	else
		1817	return 0;
		1818	}
		1819
		1820	void inline_size
		1821	pri_adjust (EV_P_ W w)
		1822	{
		1823	int pri = w->priority;
		1824	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1825	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1826	w->priority = pri;
		1827	}
		1828
1469	void inline_speed	1829	void inline_speed
1470	ev_start (EV_P_ W w, int active)	1830	ev_start (EV_P_ W w, int active)
1471	{	1831	{
1472	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1832	pri_adjust (EV_A_ w);
1473	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1474
1475	w->active = active;	1833	w->active = active;
1476	ev_ref (EV_A);	1834	ev_ref (EV_A);
1477	}	1835	}
1478		1836
1479	void inline_size	1837	void inline_size
…		…
1483	w->active = 0;	1841	w->active = 0;
1484	}	1842	}
1485		1843
1486	/*****************************************************************************/	1844	/*****************************************************************************/
1487		1845
1488	void	1846	void noinline
1489	ev_io_start (EV_P_ ev_io *w)	1847	ev_io_start (EV_P_ ev_io *w)
1490	{	1848	{
1491	int fd = w->fd;	1849	int fd = w->fd;
1492		1850
1493	if (expect_false (ev_is_active (w)))	1851	if (expect_false (ev_is_active (w)))
…		…
1495		1853
1496	assert (("ev_io_start called with negative fd", fd >= 0));	1854	assert (("ev_io_start called with negative fd", fd >= 0));
1497		1855
1498	ev_start (EV_A_ (W)w, 1);	1856	ev_start (EV_A_ (W)w, 1);
1499	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1857	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1500	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1858	wlist_add (&anfds[fd].head, (WL)w);
1501		1859
1502	fd_change (EV_A_ fd);	1860	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1861	w->events &= ~EV_IOFDSET;
1503	}	1862	}
1504		1863
1505	void	1864	void noinline
1506	ev_io_stop (EV_P_ ev_io *w)	1865	ev_io_stop (EV_P_ ev_io *w)
1507	{	1866	{
1508	ev_clear_pending (EV_A_ (W)w);	1867	clear_pending (EV_A_ (W)w);
1509	if (expect_false (!ev_is_active (w)))	1868	if (expect_false (!ev_is_active (w)))
1510	return;	1869	return;
1511		1870
1512	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1871	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1513		1872
1514	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1873	wlist_del (&anfds[w->fd].head, (WL)w);
1515	ev_stop (EV_A_ (W)w);	1874	ev_stop (EV_A_ (W)w);
1516		1875
1517	fd_change (EV_A_ w->fd);	1876	fd_change (EV_A_ w->fd, 1);
1518	}	1877	}
1519		1878
1520	void	1879	void noinline
1521	ev_timer_start (EV_P_ ev_timer *w)	1880	ev_timer_start (EV_P_ ev_timer *w)
1522	{	1881	{
1523	if (expect_false (ev_is_active (w)))	1882	if (expect_false (ev_is_active (w)))
1524	return;	1883	return;
1525		1884
1526	((WT)w)->at += mn_now;	1885	((WT)w)->at += mn_now;
1527		1886
1528	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1887	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1529		1888
1530	ev_start (EV_A_ (W)w, ++timercnt);	1889	ev_start (EV_A_ (W)w, ++timercnt);
1531	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1890	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1532	timers [timercnt - 1] = w;	1891	timers [timercnt - 1] = (WT)w;
1533	upheap ((WT *)timers, timercnt - 1);	1892	upheap (timers, timercnt - 1);
1534		1893
1535	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1894	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1536	}	1895	}
1537		1896
1538	void	1897	void noinline
1539	ev_timer_stop (EV_P_ ev_timer *w)	1898	ev_timer_stop (EV_P_ ev_timer *w)
1540	{	1899	{
1541	ev_clear_pending (EV_A_ (W)w);	1900	clear_pending (EV_A_ (W)w);
1542	if (expect_false (!ev_is_active (w)))	1901	if (expect_false (!ev_is_active (w)))
1543	return;	1902	return;
1544		1903
1545	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1904	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1546		1905
1547	{	1906	{
1548	int active = ((W)w)->active;	1907	int active = ((W)w)->active;
1549		1908
1550	if (expect_true (--active < --timercnt))	1909	if (expect_true (--active < --timercnt))
1551	{	1910	{
1552	timers [active] = timers [timercnt];	1911	timers [active] = timers [timercnt];
1553	adjustheap ((WT *)timers, timercnt, active);	1912	adjustheap (timers, timercnt, active);
1554	}	1913	}
1555	}	1914	}
1556		1915
1557	((WT)w)->at -= mn_now;	1916	((WT)w)->at -= mn_now;
1558		1917
1559	ev_stop (EV_A_ (W)w);	1918	ev_stop (EV_A_ (W)w);
1560	}	1919	}
1561		1920
1562	void	1921	void noinline
1563	ev_timer_again (EV_P_ ev_timer *w)	1922	ev_timer_again (EV_P_ ev_timer *w)
1564	{	1923	{
1565	if (ev_is_active (w))	1924	if (ev_is_active (w))
1566	{	1925	{
1567	if (w->repeat)	1926	if (w->repeat)
1568	{	1927	{
1569	((WT)w)->at = mn_now + w->repeat;	1928	((WT)w)->at = mn_now + w->repeat;
1570	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1929	adjustheap (timers, timercnt, ((W)w)->active - 1);
1571	}	1930	}
1572	else	1931	else
1573	ev_timer_stop (EV_A_ w);	1932	ev_timer_stop (EV_A_ w);
1574	}	1933	}
1575	else if (w->repeat)	1934	else if (w->repeat)
…		…
1578	ev_timer_start (EV_A_ w);	1937	ev_timer_start (EV_A_ w);
1579	}	1938	}
1580	}	1939	}
1581		1940
1582	#if EV_PERIODIC_ENABLE	1941	#if EV_PERIODIC_ENABLE
1583	void	1942	void noinline
1584	ev_periodic_start (EV_P_ ev_periodic *w)	1943	ev_periodic_start (EV_P_ ev_periodic *w)
1585	{	1944	{
1586	if (expect_false (ev_is_active (w)))	1945	if (expect_false (ev_is_active (w)))
1587	return;	1946	return;
1588		1947
…		…
1590	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1949	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1591	else if (w->interval)	1950	else if (w->interval)
1592	{	1951	{
1593	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1952	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1594	/* this formula differs from the one in periodic_reify because we do not always round up */	1953	/* this formula differs from the one in periodic_reify because we do not always round up */
1595	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1954	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1596	}	1955	}
		1956	else
		1957	((WT)w)->at = w->offset;
1597		1958
1598	ev_start (EV_A_ (W)w, ++periodiccnt);	1959	ev_start (EV_A_ (W)w, ++periodiccnt);
1599	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1960	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1600	periodics [periodiccnt - 1] = w;	1961	periodics [periodiccnt - 1] = (WT)w;
1601	upheap ((WT *)periodics, periodiccnt - 1);	1962	upheap (periodics, periodiccnt - 1);
1602		1963
1603	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1964	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1604	}	1965	}
1605		1966
1606	void	1967	void noinline
1607	ev_periodic_stop (EV_P_ ev_periodic *w)	1968	ev_periodic_stop (EV_P_ ev_periodic *w)
1608	{	1969	{
1609	ev_clear_pending (EV_A_ (W)w);	1970	clear_pending (EV_A_ (W)w);
1610	if (expect_false (!ev_is_active (w)))	1971	if (expect_false (!ev_is_active (w)))
1611	return;	1972	return;
1612		1973
1613	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1974	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1614		1975
1615	{	1976	{
1616	int active = ((W)w)->active;	1977	int active = ((W)w)->active;
1617		1978
1618	if (expect_true (--active < --periodiccnt))	1979	if (expect_true (--active < --periodiccnt))
1619	{	1980	{
1620	periodics [active] = periodics [periodiccnt];	1981	periodics [active] = periodics [periodiccnt];
1621	adjustheap ((WT *)periodics, periodiccnt, active);	1982	adjustheap (periodics, periodiccnt, active);
1622	}	1983	}
1623	}	1984	}
1624		1985
1625	ev_stop (EV_A_ (W)w);	1986	ev_stop (EV_A_ (W)w);
1626	}	1987	}
1627		1988
1628	void	1989	void noinline
1629	ev_periodic_again (EV_P_ ev_periodic *w)	1990	ev_periodic_again (EV_P_ ev_periodic *w)
1630	{	1991	{
1631	/* TODO: use adjustheap and recalculation */	1992	/* TODO: use adjustheap and recalculation */
1632	ev_periodic_stop (EV_A_ w);	1993	ev_periodic_stop (EV_A_ w);
1633	ev_periodic_start (EV_A_ w);	1994	ev_periodic_start (EV_A_ w);
…		…
1636		1997
1637	#ifndef SA_RESTART	1998	#ifndef SA_RESTART
1638	# define SA_RESTART 0	1999	# define SA_RESTART 0
1639	#endif	2000	#endif
1640		2001
1641	void	2002	void noinline
1642	ev_signal_start (EV_P_ ev_signal *w)	2003	ev_signal_start (EV_P_ ev_signal *w)
1643	{	2004	{
1644	#if EV_MULTIPLICITY	2005	#if EV_MULTIPLICITY
1645	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2006	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1646	#endif	2007	#endif
1647	if (expect_false (ev_is_active (w)))	2008	if (expect_false (ev_is_active (w)))
1648	return;	2009	return;
1649		2010
1650	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2011	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1651		2012
		2013	evpipe_init (EV_A);
		2014
		2015	{
		2016	#ifndef _WIN32
		2017	sigset_t full, prev;
		2018	sigfillset (&full);
		2019	sigprocmask (SIG_SETMASK, &full, &prev);
		2020	#endif
		2021
		2022	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2023
		2024	#ifndef _WIN32
		2025	sigprocmask (SIG_SETMASK, &prev, 0);
		2026	#endif
		2027	}
		2028
1652	ev_start (EV_A_ (W)w, 1);	2029	ev_start (EV_A_ (W)w, 1);
1653	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1654	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2030	wlist_add (&signals [w->signum - 1].head, (WL)w);
1655		2031
1656	if (!((WL)w)->next)	2032	if (!((WL)w)->next)
1657	{	2033	{
1658	#if _WIN32	2034	#if _WIN32
1659	signal (w->signum, sighandler);	2035	signal (w->signum, ev_sighandler);
1660	#else	2036	#else
1661	struct sigaction sa;	2037	struct sigaction sa;
1662	sa.sa_handler = sighandler;	2038	sa.sa_handler = ev_sighandler;
1663	sigfillset (&sa.sa_mask);	2039	sigfillset (&sa.sa_mask);
1664	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2040	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1665	sigaction (w->signum, &sa, 0);	2041	sigaction (w->signum, &sa, 0);
1666	#endif	2042	#endif
1667	}	2043	}
1668	}	2044	}
1669		2045
1670	void	2046	void noinline
1671	ev_signal_stop (EV_P_ ev_signal *w)	2047	ev_signal_stop (EV_P_ ev_signal *w)
1672	{	2048	{
1673	ev_clear_pending (EV_A_ (W)w);	2049	clear_pending (EV_A_ (W)w);
1674	if (expect_false (!ev_is_active (w)))	2050	if (expect_false (!ev_is_active (w)))
1675	return;	2051	return;
1676		2052
1677	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2053	wlist_del (&signals [w->signum - 1].head, (WL)w);
1678	ev_stop (EV_A_ (W)w);	2054	ev_stop (EV_A_ (W)w);
1679		2055
1680	if (!signals [w->signum - 1].head)	2056	if (!signals [w->signum - 1].head)
1681	signal (w->signum, SIG_DFL);	2057	signal (w->signum, SIG_DFL);
1682	}	2058	}
…		…
1689	#endif	2065	#endif
1690	if (expect_false (ev_is_active (w)))	2066	if (expect_false (ev_is_active (w)))
1691	return;	2067	return;
1692		2068
1693	ev_start (EV_A_ (W)w, 1);	2069	ev_start (EV_A_ (W)w, 1);
1694	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2070	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1695	}	2071	}
1696		2072
1697	void	2073	void
1698	ev_child_stop (EV_P_ ev_child *w)	2074	ev_child_stop (EV_P_ ev_child *w)
1699	{	2075	{
1700	ev_clear_pending (EV_A_ (W)w);	2076	clear_pending (EV_A_ (W)w);
1701	if (expect_false (!ev_is_active (w)))	2077	if (expect_false (!ev_is_active (w)))
1702	return;	2078	return;
1703		2079
1704	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2080	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1705	ev_stop (EV_A_ (W)w);	2081	ev_stop (EV_A_ (W)w);
1706	}	2082	}
1707		2083
1708	#if EV_STAT_ENABLE	2084	#if EV_STAT_ENABLE
1709		2085
…		…
1713	# endif	2089	# endif
1714		2090
1715	#define DEF_STAT_INTERVAL 5.0074891	2091	#define DEF_STAT_INTERVAL 5.0074891
1716	#define MIN_STAT_INTERVAL 0.1074891	2092	#define MIN_STAT_INTERVAL 0.1074891
1717		2093
1718	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2094	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1719		2095
1720	#if EV_USE_INOTIFY	2096	#if EV_USE_INOTIFY
1721	# define EV_INOTIFY_BUFSIZE 8192	2097	# define EV_INOTIFY_BUFSIZE 8192
1722		2098
1723	static void noinline	2099	static void noinline
…		…
1831	ev_set_priority (&fs_w, EV_MAXPRI);	2207	ev_set_priority (&fs_w, EV_MAXPRI);
1832	ev_io_start (EV_A_ &fs_w);	2208	ev_io_start (EV_A_ &fs_w);
1833	}	2209	}
1834	}	2210	}
1835		2211
		2212	void inline_size
		2213	infy_fork (EV_P)
		2214	{
		2215	int slot;
		2216
		2217	if (fs_fd < 0)
		2218	return;
		2219
		2220	close (fs_fd);
		2221	fs_fd = inotify_init ();
		2222
		2223	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2224	{
		2225	WL w_ = fs_hash [slot].head;
		2226	fs_hash [slot].head = 0;
		2227
		2228	while (w_)
		2229	{
		2230	ev_stat w = (ev_stat )w_;
		2231	w_ = w_->next; /* lets us add this watcher */
		2232
		2233	w->wd = -1;
		2234
		2235	if (fs_fd >= 0)
		2236	infy_add (EV_A_ w); /* re-add, no matter what */
		2237	else
		2238	ev_timer_start (EV_A_ &w->timer);
		2239	}
		2240
		2241	}
		2242	}
		2243
1836	#endif	2244	#endif
1837		2245
1838	void	2246	void
1839	ev_stat_stat (EV_P_ ev_stat *w)	2247	ev_stat_stat (EV_P_ ev_stat *w)
1840	{	2248	{
…		…
1842	w->attr.st_nlink = 0;	2250	w->attr.st_nlink = 0;
1843	else if (!w->attr.st_nlink)	2251	else if (!w->attr.st_nlink)
1844	w->attr.st_nlink = 1;	2252	w->attr.st_nlink = 1;
1845	}	2253	}
1846		2254
1847	void noinline	2255	static void noinline
1848	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2256	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1849	{	2257	{
1850	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	2258	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1851		2259
1852	/* we copy this here each the time so that */	2260	/* we copy this here each the time so that */
1853	/* prev has the old value when the callback gets invoked */	2261	/* prev has the old value when the callback gets invoked */
1854	w->prev = w->attr;	2262	w->prev = w->attr;
1855	ev_stat_stat (EV_A_ w);	2263	ev_stat_stat (EV_A_ w);
1856		2264
1857	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2265	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2266	if (
		2267	w->prev.st_dev != w->attr.st_dev
		2268	\|\| w->prev.st_ino != w->attr.st_ino
		2269	\|\| w->prev.st_mode != w->attr.st_mode
		2270	\|\| w->prev.st_nlink != w->attr.st_nlink
		2271	\|\| w->prev.st_uid != w->attr.st_uid
		2272	\|\| w->prev.st_gid != w->attr.st_gid
		2273	\|\| w->prev.st_rdev != w->attr.st_rdev
		2274	\|\| w->prev.st_size != w->attr.st_size
		2275	\|\| w->prev.st_atime != w->attr.st_atime
		2276	\|\| w->prev.st_mtime != w->attr.st_mtime
		2277	\|\| w->prev.st_ctime != w->attr.st_ctime
1858	{	2278	) {
1859	#if EV_USE_INOTIFY	2279	#if EV_USE_INOTIFY
1860	infy_del (EV_A_ w);	2280	infy_del (EV_A_ w);
1861	infy_add (EV_A_ w);	2281	infy_add (EV_A_ w);
1862	ev_stat_stat (EV_A_ w); /* avoid race... */	2282	ev_stat_stat (EV_A_ w); /* avoid race... */
1863	#endif	2283	#endif
…		…
1897	}	2317	}
1898		2318
1899	void	2319	void
1900	ev_stat_stop (EV_P_ ev_stat *w)	2320	ev_stat_stop (EV_P_ ev_stat *w)
1901	{	2321	{
1902	ev_clear_pending (EV_A_ (W)w);	2322	clear_pending (EV_A_ (W)w);
1903	if (expect_false (!ev_is_active (w)))	2323	if (expect_false (!ev_is_active (w)))
1904	return;	2324	return;
1905		2325
1906	#if EV_USE_INOTIFY	2326	#if EV_USE_INOTIFY
1907	infy_del (EV_A_ w);	2327	infy_del (EV_A_ w);
…		…
1910		2330
1911	ev_stop (EV_A_ (W)w);	2331	ev_stop (EV_A_ (W)w);
1912	}	2332	}
1913	#endif	2333	#endif
1914		2334
		2335	#if EV_IDLE_ENABLE
1915	void	2336	void
1916	ev_idle_start (EV_P_ ev_idle *w)	2337	ev_idle_start (EV_P_ ev_idle *w)
1917	{	2338	{
1918	if (expect_false (ev_is_active (w)))	2339	if (expect_false (ev_is_active (w)))
1919	return;	2340	return;
1920		2341
		2342	pri_adjust (EV_A_ (W)w);
		2343
		2344	{
		2345	int active = ++idlecnt [ABSPRI (w)];
		2346
		2347	++idleall;
1921	ev_start (EV_A_ (W)w, ++idlecnt);	2348	ev_start (EV_A_ (W)w, active);
		2349
1922	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2350	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1923	idles [idlecnt - 1] = w;	2351	idles [ABSPRI (w)][active - 1] = w;
		2352	}
1924	}	2353	}
1925		2354
1926	void	2355	void
1927	ev_idle_stop (EV_P_ ev_idle *w)	2356	ev_idle_stop (EV_P_ ev_idle *w)
1928	{	2357	{
1929	ev_clear_pending (EV_A_ (W)w);	2358	clear_pending (EV_A_ (W)w);
1930	if (expect_false (!ev_is_active (w)))	2359	if (expect_false (!ev_is_active (w)))
1931	return;	2360	return;
1932		2361
1933	{	2362	{
1934	int active = ((W)w)->active;	2363	int active = ((W)w)->active;
1935	idles [active - 1] = idles [--idlecnt];	2364
		2365	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1936	((W)idles [active - 1])->active = active;	2366	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2367
		2368	ev_stop (EV_A_ (W)w);
		2369	--idleall;
1937	}	2370	}
1938
1939	ev_stop (EV_A_ (W)w);
1940	}	2371	}
		2372	#endif
1941		2373
1942	void	2374	void
1943	ev_prepare_start (EV_P_ ev_prepare *w)	2375	ev_prepare_start (EV_P_ ev_prepare *w)
1944	{	2376	{
1945	if (expect_false (ev_is_active (w)))	2377	if (expect_false (ev_is_active (w)))
…		…
1951	}	2383	}
1952		2384
1953	void	2385	void
1954	ev_prepare_stop (EV_P_ ev_prepare *w)	2386	ev_prepare_stop (EV_P_ ev_prepare *w)
1955	{	2387	{
1956	ev_clear_pending (EV_A_ (W)w);	2388	clear_pending (EV_A_ (W)w);
1957	if (expect_false (!ev_is_active (w)))	2389	if (expect_false (!ev_is_active (w)))
1958	return;	2390	return;
1959		2391
1960	{	2392	{
1961	int active = ((W)w)->active;	2393	int active = ((W)w)->active;
…		…
1978	}	2410	}
1979		2411
1980	void	2412	void
1981	ev_check_stop (EV_P_ ev_check *w)	2413	ev_check_stop (EV_P_ ev_check *w)
1982	{	2414	{
1983	ev_clear_pending (EV_A_ (W)w);	2415	clear_pending (EV_A_ (W)w);
1984	if (expect_false (!ev_is_active (w)))	2416	if (expect_false (!ev_is_active (w)))
1985	return;	2417	return;
1986		2418
1987	{	2419	{
1988	int active = ((W)w)->active;	2420	int active = ((W)w)->active;
…		…
1995		2427
1996	#if EV_EMBED_ENABLE	2428	#if EV_EMBED_ENABLE
1997	void noinline	2429	void noinline
1998	ev_embed_sweep (EV_P_ ev_embed *w)	2430	ev_embed_sweep (EV_P_ ev_embed *w)
1999	{	2431	{
2000	ev_loop (w->loop, EVLOOP_NONBLOCK);	2432	ev_loop (w->other, EVLOOP_NONBLOCK);
2001	}	2433	}
2002		2434
2003	static void	2435	static void
2004	embed_cb (EV_P_ ev_io *io, int revents)	2436	embed_io_cb (EV_P_ ev_io *io, int revents)
2005	{	2437	{
2006	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2438	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2007		2439
2008	if (ev_cb (w))	2440	if (ev_cb (w))
2009	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2441	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2010	else	2442	else
2011	ev_embed_sweep (loop, w);	2443	ev_loop (w->other, EVLOOP_NONBLOCK);
2012	}	2444	}
		2445
		2446	static void
		2447	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2448	{
		2449	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2450
		2451	{
		2452	struct ev_loop *loop = w->other;
		2453
		2454	while (fdchangecnt)
		2455	{
		2456	fd_reify (EV_A);
		2457	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2458	}
		2459	}
		2460	}
		2461
		2462	#if 0
		2463	static void
		2464	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2465	{
		2466	ev_idle_stop (EV_A_ idle);
		2467	}
		2468	#endif
2013		2469
2014	void	2470	void
2015	ev_embed_start (EV_P_ ev_embed *w)	2471	ev_embed_start (EV_P_ ev_embed *w)
2016	{	2472	{
2017	if (expect_false (ev_is_active (w)))	2473	if (expect_false (ev_is_active (w)))
2018	return;	2474	return;
2019		2475
2020	{	2476	{
2021	struct ev_loop *loop = w->loop;	2477	struct ev_loop *loop = w->other;
2022	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2478	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2023	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2479	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2024	}	2480	}
2025		2481
2026	ev_set_priority (&w->io, ev_priority (w));	2482	ev_set_priority (&w->io, ev_priority (w));
2027	ev_io_start (EV_A_ &w->io);	2483	ev_io_start (EV_A_ &w->io);
2028		2484
		2485	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2486	ev_set_priority (&w->prepare, EV_MINPRI);
		2487	ev_prepare_start (EV_A_ &w->prepare);
		2488
		2489	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2490
2029	ev_start (EV_A_ (W)w, 1);	2491	ev_start (EV_A_ (W)w, 1);
2030	}	2492	}
2031		2493
2032	void	2494	void
2033	ev_embed_stop (EV_P_ ev_embed *w)	2495	ev_embed_stop (EV_P_ ev_embed *w)
2034	{	2496	{
2035	ev_clear_pending (EV_A_ (W)w);	2497	clear_pending (EV_A_ (W)w);
2036	if (expect_false (!ev_is_active (w)))	2498	if (expect_false (!ev_is_active (w)))
2037	return;	2499	return;
2038		2500
2039	ev_io_stop (EV_A_ &w->io);	2501	ev_io_stop (EV_A_ &w->io);
		2502	ev_prepare_stop (EV_A_ &w->prepare);
2040		2503
2041	ev_stop (EV_A_ (W)w);	2504	ev_stop (EV_A_ (W)w);
2042	}	2505	}
2043	#endif	2506	#endif
2044		2507
…		…
2055	}	2518	}
2056		2519
2057	void	2520	void
2058	ev_fork_stop (EV_P_ ev_fork *w)	2521	ev_fork_stop (EV_P_ ev_fork *w)
2059	{	2522	{
2060	ev_clear_pending (EV_A_ (W)w);	2523	clear_pending (EV_A_ (W)w);
2061	if (expect_false (!ev_is_active (w)))	2524	if (expect_false (!ev_is_active (w)))
2062	return;	2525	return;
2063		2526
2064	{	2527	{
2065	int active = ((W)w)->active;	2528	int active = ((W)w)->active;
…		…
2069		2532
2070	ev_stop (EV_A_ (W)w);	2533	ev_stop (EV_A_ (W)w);
2071	}	2534	}
2072	#endif	2535	#endif
2073		2536
		2537	#if EV_ASYNC_ENABLE
		2538	void
		2539	ev_async_start (EV_P_ ev_async *w)
		2540	{
		2541	if (expect_false (ev_is_active (w)))
		2542	return;
		2543
		2544	evpipe_init (EV_A);
		2545
		2546	ev_start (EV_A_ (W)w, ++asynccnt);
		2547	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2548	asyncs [asynccnt - 1] = w;
		2549	}
		2550
		2551	void
		2552	ev_async_stop (EV_P_ ev_async *w)
		2553	{
		2554	clear_pending (EV_A_ (W)w);
		2555	if (expect_false (!ev_is_active (w)))
		2556	return;
		2557
		2558	{
		2559	int active = ((W)w)->active;
		2560	asyncs [active - 1] = asyncs [--asynccnt];
		2561	((W)asyncs [active - 1])->active = active;
		2562	}
		2563
		2564	ev_stop (EV_A_ (W)w);
		2565	}
		2566
		2567	void
		2568	ev_async_send (EV_P_ ev_async *w)
		2569	{
		2570	w->sent = 1;
		2571	evpipe_write (EV_A_ &gotasync);
		2572	}
		2573	#endif
		2574
2074	/*****************************************************************************/	2575	/*****************************************************************************/
2075		2576
2076	struct ev_once	2577	struct ev_once
2077	{	2578	{
2078	ev_io io;	2579	ev_io io;
…		…
2133	ev_timer_set (&once->to, timeout, 0.);	2634	ev_timer_set (&once->to, timeout, 0.);
2134	ev_timer_start (EV_A_ &once->to);	2635	ev_timer_start (EV_A_ &once->to);
2135	}	2636	}
2136	}	2637	}
2137		2638
		2639	#if EV_MULTIPLICITY
		2640	#include "ev_wrap.h"
		2641	#endif
		2642
2138	#ifdef __cplusplus	2643	#ifdef __cplusplus
2139	}	2644	}
2140	#endif	2645	#endif
2141		2646

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Comparing libev/ev.c (file contents): Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs. Revision 1.226 by root, Fri Apr 18 17:16:44 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs.
Revision 1.226 by root, Fri Apr 18 17:16:44 2008 UTC