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

Comparing libev/ev.c (file contents):
Revision 1.147 by root, Tue Nov 27 10:59:11 2007 UTC vs.
Revision 1.212 by root, Tue Feb 19 19:01:13 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
51	# ifndef EV_USE_MONOTONIC	59	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	60	# define EV_USE_MONOTONIC 0
53	# endif	61	# endif
54	# ifndef EV_USE_REALTIME	62	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	63	# define EV_USE_REALTIME 0
		64	# endif
		65	# endif
		66
		67	# ifndef EV_USE_NANOSLEEP
		68	# if HAVE_NANOSLEEP
		69	# define EV_USE_NANOSLEEP 1
		70	# else
		71	# define EV_USE_NANOSLEEP 0
56	# endif	72	# endif
57	# endif	73	# endif
58		74
59	# ifndef EV_USE_SELECT	75	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	76	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
94	# else	110	# else
95	# define EV_USE_PORT 0	111	# define EV_USE_PORT 0
96	# endif	112	# endif
97	# endif	113	# endif
98		114
		115	# ifndef EV_USE_INOTIFY
		116	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		117	# define EV_USE_INOTIFY 1
		118	# else
		119	# define EV_USE_INOTIFY 0
		120	# endif
		121	# endif
		122
99	#endif	123	#endif
100		124
101	#include <math.h>	125	#include <math.h>
102	#include <stdlib.h>	126	#include <stdlib.h>
103	#include <fcntl.h>	127	#include <fcntl.h>
…		…
109	#include <errno.h>	133	#include <errno.h>
110	#include <sys/types.h>	134	#include <sys/types.h>
111	#include <time.h>	135	#include <time.h>
112		136
113	#include <signal.h>	137	#include <signal.h>
		138
		139	#ifdef EV_H
		140	# include EV_H
		141	#else
		142	# include "ev.h"
		143	#endif
114		144
115	#ifndef _WIN32	145	#ifndef _WIN32
116	# include <sys/time.h>	146	# include <sys/time.h>
117	# include <sys/wait.h>	147	# include <sys/wait.h>
118	# include <unistd.h>	148	# include <unistd.h>
…		…
132		162
133	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
134	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
135	#endif	165	#endif
136		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
137	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
138	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
139	#endif	173	#endif
140		174
141	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
156		190
157	#ifndef EV_USE_PORT	191	#ifndef EV_USE_PORT
158	# define EV_USE_PORT 0	192	# define EV_USE_PORT 0
159	#endif	193	#endif
160		194
		195	#ifndef EV_USE_INOTIFY
		196	# define EV_USE_INOTIFY 0
		197	#endif
		198
		199	#ifndef EV_PID_HASHSIZE
		200	# if EV_MINIMAL
		201	# define EV_PID_HASHSIZE 1
		202	# else
		203	# define EV_PID_HASHSIZE 16
		204	# endif
		205	#endif
		206
		207	#ifndef EV_INOTIFY_HASHSIZE
		208	# if EV_MINIMAL
		209	# define EV_INOTIFY_HASHSIZE 1
		210	# else
		211	# define EV_INOTIFY_HASHSIZE 16
		212	# endif
		213	#endif
		214
161	/**/	215	/**/
162		216
163	#ifndef CLOCK_MONOTONIC	217	#ifndef CLOCK_MONOTONIC
164	# undef EV_USE_MONOTONIC	218	# undef EV_USE_MONOTONIC
165	# define EV_USE_MONOTONIC 0	219	# define EV_USE_MONOTONIC 0
…		…
168	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
169	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
170	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
171	#endif	225	#endif
172		226
		227	#if !EV_STAT_ENABLE
		228	# undef EV_USE_INOTIFY
		229	# define EV_USE_INOTIFY 0
		230	#endif
		231
		232	#if !EV_USE_NANOSLEEP
		233	# ifndef _WIN32
		234	# include <sys/select.h>
		235	# endif
		236	#endif
		237
		238	#if EV_USE_INOTIFY
		239	# include <sys/inotify.h>
		240	#endif
		241
173	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
174	# include <winsock.h>	243	# include <winsock.h>
175	#endif	244	#endif
176		245
177	/**/	246	/**/
178		247
		248	/*
		249	* This is used to avoid floating point rounding problems.
		250	* It is added to ev_rt_now when scheduling periodics
		251	* to ensure progress, time-wise, even when rounding
		252	* errors are against us.
		253	* This value is good at least till the year 4000.
		254	* Better solutions welcome.
		255	*/
		256	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
		257
179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	258	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	259	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */	260	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
183		261
184	#ifdef EV_H
185	# include EV_H
186	#else
187	# include "ev.h"
188	#endif
189
190	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
191	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
192	# define inline_size static inline /* inline for codesize */
193	# if EV_MINIMAL
194	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
195	# define inline_speed static noinline
196	# else
197	# define noinline
198	# define inline_speed static inline
199	# endif
200	#else	265	#else
201	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
202	# define inline_speed static
203	# define inline_size static
204	# define noinline	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
205	#endif	271	#endif
206		272
207	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
208	#define expect_true(expr) expect ((expr) != 0, 1)	274	#define expect_true(expr) expect ((expr) != 0, 1)
		275	#define inline_size static inline
		276
		277	#if EV_MINIMAL
		278	# define inline_speed static noinline
		279	#else
		280	# define inline_speed static inline
		281	#endif
209		282
210	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212		285
213	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
214	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
215		288
216	typedef ev_watcher *W;	289	typedef ev_watcher *W;
217	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
218	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
219		292
		293	#if EV_USE_MONOTONIC
		294	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		295	/* giving it a reasonably high chance of working on typical architetcures */
220	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
221		298
222	#ifdef _WIN32	299	#ifdef _WIN32
223	# include "ev_win32.c"	300	# include "ev_win32.c"
224	#endif	301	#endif
225		302
…		…
254	ev_set_allocator (void (cb)(void *ptr, long size))	331	ev_set_allocator (void (cb)(void *ptr, long size))
255	{	332	{
256	alloc = cb;	333	alloc = cb;
257	}	334	}
258		335
259	static void *	336	inline_speed void *
260	ev_realloc (void *ptr, long size)	337	ev_realloc (void *ptr, long size)
261	{	338	{
262	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263		340
264	if (!ptr && size)	341	if (!ptr && size)
…		…
288	typedef struct	365	typedef struct
289	{	366	{
290	W w;	367	W w;
291	int events;	368	int events;
292	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
293		377
294	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
295		379
296	struct ev_loop	380	struct ev_loop
297	{	381	{
…		…
354	{	438	{
355	return ev_rt_now;	439	return ev_rt_now;
356	}	440	}
357	#endif	441	#endif
358		442
359	#define array_roundsize(type,n) (((n) \| 4) & ~3)	443	void
		444	ev_sleep (ev_tstamp delay)
		445	{
		446	if (delay > 0.)
		447	{
		448	#if EV_USE_NANOSLEEP
		449	struct timespec ts;
		450
		451	ts.tv_sec = (time_t)delay;
		452	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		453
		454	nanosleep (&ts, 0);
		455	#elif defined(_WIN32)
		456	Sleep (delay * 1e3);
		457	#else
		458	struct timeval tv;
		459
		460	tv.tv_sec = (time_t)delay;
		461	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		462
		463	select (0, 0, 0, 0, &tv);
		464	#endif
		465	}
		466	}
		467
		468	/*****************************************************************************/
		469
		470	int inline_size
		471	array_nextsize (int elem, int cur, int cnt)
		472	{
		473	int ncur = cur + 1;
		474
		475	do
		476	ncur <<= 1;
		477	while (cnt > ncur);
		478
		479	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		480	if (elem * ncur > 4096)
		481	{
		482	ncur *= elem;
		483	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		484	ncur = ncur - sizeof (void ) 4;
		485	ncur /= elem;
		486	}
		487
		488	return ncur;
		489	}
		490
		491	static noinline void *
		492	array_realloc (int elem, void base, int cur, int cnt)
		493	{
		494	cur = array_nextsize (elem, cur, cnt);
		495	return ev_realloc (base, elem * *cur);
		496	}
360		497
361	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
362	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
363	{ \	500	{ \
364	int newcnt = cur; \	501	int ocur_ = (cur); \
365	do \	502	(base) = (type *)array_realloc \
366	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
367	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
368	} \
369	while ((cnt) > newcnt); \
370	\
371	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
372	init (base + cur, newcnt - cur); \
373	cur = newcnt; \
374	}	505	}
375		506
		507	#if 0
376	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
377	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
378	{ \	510	{ \
379	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
380	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	512	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
381	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
382	}	514	}
		515	#endif
383		516
384	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
385	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	518	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
386		519
387	/*****************************************************************************/	520	/*****************************************************************************/
388		521
389	void noinline	522	void noinline
390	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
391	{	524	{
392	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
393		527
394	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events \|= revents;
		530	else
395	{	531	{
		532	w_->pending = ++pendingcnt [pri];
		533	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		534	pendings [pri][w_->pending - 1].w = w_;
396	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	535	pendings [pri][w_->pending - 1].events = revents;
397	return;
398	}	536	}
399
400	w_->pending = ++pendingcnt [ABSPRI (w_)];
401	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
402	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
403	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
404	}	537	}
405		538
406	void inline_size	539	void inline_speed
407	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
408	{	541	{
409	int i;	542	int i;
410		543
411	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
443	}	576	}
444		577
445	void	578	void
446	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
447	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
448	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
449	}	583	}
450		584
451	void inline_size	585	void inline_size
452	fd_reify (EV_P)	586	fd_reify (EV_P)
453	{	587	{
…		…
457	{	591	{
458	int fd = fdchanges [i];	592	int fd = fdchanges [i];
459	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
460	ev_io *w;	594	ev_io *w;
461		595
462	int events = 0;	596	unsigned char events = 0;
463		597
464	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	598	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
465	events \|= w->events;	599	events \|= (unsigned char)w->events;
466		600
467	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
468	if (events)	602	if (events)
469	{	603	{
470	unsigned long argp;	604	unsigned long argp;
		605	#ifdef EV_FD_TO_WIN32_HANDLE
		606	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		607	#else
471	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
472	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	610	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
473	}	611	}
474	#endif	612	#endif
475		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
476	anfd->reify = 0;	618	anfd->reify = 0;
477
478	backend_modify (EV_A_ fd, anfd->events, events);
479	anfd->events = events;	619	anfd->events = events;
		620
		621	if (o_events != events \|\| o_reify & EV_IOFDSET)
		622	backend_modify (EV_A_ fd, o_events, events);
		623	}
480	}	624	}
481		625
482	fdchangecnt = 0;	626	fdchangecnt = 0;
483	}	627	}
484		628
485	void inline_size	629	void inline_size
486	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
487	{	631	{
488	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
489	return;
490
491	anfds [fd].reify = 1;	633	anfds [fd].reify \|= flags;
492		634
		635	if (expect_true (!reify))
		636	{
493	++fdchangecnt;	637	++fdchangecnt;
494	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
495	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
496	}	641	}
497		642
498	void inline_speed	643	void inline_speed
499	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
500	{	645	{
…		…
547	static void noinline	692	static void noinline
548	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
549	{	694	{
550	int fd;	695	int fd;
551		696
552	/* this should be highly optimised to not do anything but set a flag */
553	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
554	if (anfds [fd].events)	698	if (anfds [fd].events)
555	{	699	{
556	anfds [fd].events = 0;	700	anfds [fd].events = 0;
557	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
558	}	702	}
559	}	703	}
560		704
561	/*****************************************************************************/	705	/*****************************************************************************/
562		706
563	void inline_speed	707	void inline_speed
564	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
565	{	709	{
566	WT w = heap [k];	710	WT w = heap [k];
567		711
568	while (k && heap [k >> 1]->at > w->at)	712	while (k)
569	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
570	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
571	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
572	k >>= 1;	721	k = p;
573	}	722	}
574		723
575	heap [k] = w;	724	heap [k] = w;
576	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
577
578	}	726	}
579		727
580	void inline_speed	728	void inline_speed
581	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
582	{	730	{
583	WT w = heap [k];	731	WT w = heap [k];
584		732
585	while (k < (N >> 1))	733	for (;;)
586	{	734	{
587	int j = k << 1;	735	int c = (k << 1) + 1;
588		736
589	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
590	++j;
591
592	if (w->at <= heap [j]->at)
593	break;	738	break;
594		739
		740	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		741	? 1 : 0;
		742
		743	if (w->at <= heap [c]->at)
		744	break;
		745
595	heap [k] = heap [j];	746	heap [k] = heap [c];
596	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
597	k = j;	749	k = c;
598	}	750	}
599		751
600	heap [k] = w;	752	heap [k] = w;
601	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
602	}	754	}
…		…
611	/*****************************************************************************/	763	/*****************************************************************************/
612		764
613	typedef struct	765	typedef struct
614	{	766	{
615	WL head;	767	WL head;
616	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
617	} ANSIG;	769	} ANSIG;
618		770
619	static ANSIG *signals;	771	static ANSIG *signals;
620	static int signalmax;	772	static int signalmax;
621		773
622	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
623	static sig_atomic_t volatile gotsig;
624	static ev_io sigev;
625		775
626	void inline_size	776	void inline_size
627	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
628	{	778	{
629	while (count--)	779	while (count--)
…		…
633		783
634	++base;	784	++base;
635	}	785	}
636	}	786	}
637		787
638	static void	788	/*****************************************************************************/
639	sighandler (int signum)
640	{
641	#if _WIN32
642	signal (signum, sighandler);
643	#endif
644		789
645	signals [signum - 1].gotsig = 1;
646
647	if (!gotsig)
648	{
649	int old_errno = errno;
650	gotsig = 1;
651	write (sigpipe [1], &signum, 1);
652	errno = old_errno;
653	}
654	}
655
656	void noinline
657	ev_feed_signal_event (EV_P_ int signum)
658	{
659	WL w;
660
661	#if EV_MULTIPLICITY
662	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
663	#endif
664
665	--signum;
666
667	if (signum < 0 \|\| signum >= signalmax)
668	return;
669
670	signals [signum].gotsig = 0;
671
672	for (w = signals [signum].head; w; w = w->next)
673	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
674	}
675
676	static void
677	sigcb (EV_P_ ev_io *iow, int revents)
678	{
679	int signum;
680
681	read (sigpipe [0], &revents, 1);
682	gotsig = 0;
683
684	for (signum = signalmax; signum--; )
685	if (signals [signum].gotsig)
686	ev_feed_signal_event (EV_A_ signum + 1);
687	}
688
689	void inline_size	790	void inline_speed
690	fd_intern (int fd)	791	fd_intern (int fd)
691	{	792	{
692	#ifdef _WIN32	793	#ifdef _WIN32
693	int arg = 1;	794	int arg = 1;
694	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
697	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
698	#endif	799	#endif
699	}	800	}
700		801
701	static void noinline	802	static void noinline
702	siginit (EV_P)	803	evpipe_init (EV_P)
703	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
704	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
705	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
706		812
707	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
708	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
709	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816	}
		817	}
		818
		819	void inline_size
		820	evpipe_write (EV_P_ int sig, int async)
		821	{
		822	if (!(gotasync \|\| gotsig))
		823	{
		824	int old_errno = errno; /* save errno becaue write might clobber it */
		825
		826	if (sig) gotsig = 1;
		827	if (async) gotasync = 1;
		828
		829	write (evpipe [1], &old_errno, 1);
		830
		831	errno = old_errno;
		832	}
		833	}
		834
		835	static void
		836	pipecb (EV_P_ ev_io *iow, int revents)
		837	{
		838	{
		839	int dummy;
		840	read (evpipe [0], &dummy, 1);
		841	}
		842
		843	if (gotsig && ev_is_default_loop (EV_A))
		844	{
		845	int signum;
		846	gotsig = 0;
		847
		848	for (signum = signalmax; signum--; )
		849	if (signals [signum].gotsig)
		850	ev_feed_signal_event (EV_A_ signum + 1);
		851	}
		852
		853	#if EV_ASYNC_ENABLE
		854	if (gotasync)
		855	{
		856	int i;
		857	gotasync = 0;
		858
		859	for (i = asynccnt; i--; )
		860	if (asyncs [i]->sent)
		861	{
		862	asyncs [i]->sent = 0;
		863	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		864	}
		865	}
		866	#endif
710	}	867	}
711		868
712	/*****************************************************************************/	869	/*****************************************************************************/
713		870
		871	static void
		872	sighandler (int signum)
		873	{
		874	#if EV_MULTIPLICITY
		875	struct ev_loop *loop = &default_loop_struct;
		876	#endif
		877
		878	#if _WIN32
		879	signal (signum, sighandler);
		880	#endif
		881
		882	signals [signum - 1].gotsig = 1;
		883	evpipe_write (EV_A_ 1, 0);
		884	}
		885
		886	void noinline
		887	ev_feed_signal_event (EV_P_ int signum)
		888	{
		889	WL w;
		890
		891	#if EV_MULTIPLICITY
		892	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		893	#endif
		894
		895	--signum;
		896
		897	if (signum < 0 \|\| signum >= signalmax)
		898	return;
		899
		900	signals [signum].gotsig = 0;
		901
		902	for (w = signals [signum].head; w; w = w->next)
		903	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		904	}
		905
		906	/*****************************************************************************/
		907
714	static ev_child *childs [PID_HASHSIZE];	908	static WL childs [EV_PID_HASHSIZE];
715		909
716	#ifndef _WIN32	910	#ifndef _WIN32
717		911
718	static ev_signal childev;	912	static ev_signal childev;
		913
		914	#ifndef WIFCONTINUED
		915	# define WIFCONTINUED(status) 0
		916	#endif
719		917
720	void inline_speed	918	void inline_speed
721	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	919	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
722	{	920	{
723	ev_child *w;	921	ev_child *w;
		922	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
724		923
725	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	924	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		925	{
726	if (w->pid == pid \|\| !w->pid)	926	if ((w->pid == pid \|\| !w->pid)
		927	&& (!traced \|\| (w->flags & 1)))
727	{	928	{
728	ev_priority (w) = ev_priority (sw); /* need to do it now */	929	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
729	w->rpid = pid;	930	w->rpid = pid;
730	w->rstatus = status;	931	w->rstatus = status;
731	ev_feed_event (EV_A_ (W)w, EV_CHILD);	932	ev_feed_event (EV_A_ (W)w, EV_CHILD);
732	}	933	}
		934	}
733	}	935	}
734		936
735	#ifndef WCONTINUED	937	#ifndef WCONTINUED
736	# define WCONTINUED 0	938	# define WCONTINUED 0
737	#endif	939	#endif
…		…
751	/* make sure we are called again until all childs have been reaped */	953	/* make sure we are called again until all childs have been reaped */
752	/* we need to do it this way so that the callback gets called before we continue */	954	/* we need to do it this way so that the callback gets called before we continue */
753	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	955	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754		956
755	child_reap (EV_A_ sw, pid, pid, status);	957	child_reap (EV_A_ sw, pid, pid, status);
		958	if (EV_PID_HASHSIZE > 1)
756	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	959	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757	}	960	}
758		961
759	#endif	962	#endif
760		963
761	/*****************************************************************************/	964	/*****************************************************************************/
…		…
833	}	1036	}
834		1037
835	unsigned int	1038	unsigned int
836	ev_embeddable_backends (void)	1039	ev_embeddable_backends (void)
837	{	1040	{
838	return EVBACKEND_EPOLL	1041	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
839	\| EVBACKEND_KQUEUE	1042
840	\| EVBACKEND_PORT;	1043	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1044	/* please fix it and tell me how to detect the fix */
		1045	flags &= ~EVBACKEND_EPOLL;
		1046
		1047	return flags;
841	}	1048	}
842		1049
843	unsigned int	1050	unsigned int
844	ev_backend (EV_P)	1051	ev_backend (EV_P)
845	{	1052	{
846	return backend;	1053	return backend;
847	}	1054	}
848		1055
849	static void	1056	unsigned int
		1057	ev_loop_count (EV_P)
		1058	{
		1059	return loop_count;
		1060	}
		1061
		1062	void
		1063	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1064	{
		1065	io_blocktime = interval;
		1066	}
		1067
		1068	void
		1069	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1070	{
		1071	timeout_blocktime = interval;
		1072	}
		1073
		1074	static void noinline
850	loop_init (EV_P_ unsigned int flags)	1075	loop_init (EV_P_ unsigned int flags)
851	{	1076	{
852	if (!backend)	1077	if (!backend)
853	{	1078	{
854	#if EV_USE_MONOTONIC	1079	#if EV_USE_MONOTONIC
…		…
857	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1082	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
858	have_monotonic = 1;	1083	have_monotonic = 1;
859	}	1084	}
860	#endif	1085	#endif
861		1086
862	ev_rt_now = ev_time ();	1087	ev_rt_now = ev_time ();
863	mn_now = get_clock ();	1088	mn_now = get_clock ();
864	now_floor = mn_now;	1089	now_floor = mn_now;
865	rtmn_diff = ev_rt_now - mn_now;	1090	rtmn_diff = ev_rt_now - mn_now;
		1091
		1092	io_blocktime = 0.;
		1093	timeout_blocktime = 0.;
		1094	backend = 0;
		1095	backend_fd = -1;
		1096	gotasync = 0;
		1097	#if EV_USE_INOTIFY
		1098	fs_fd = -2;
		1099	#endif
		1100
		1101	/* pid check not overridable via env */
		1102	#ifndef _WIN32
		1103	if (flags & EVFLAG_FORKCHECK)
		1104	curpid = getpid ();
		1105	#endif
866		1106
867	if (!(flags & EVFLAG_NOENV)	1107	if (!(flags & EVFLAG_NOENV)
868	&& !enable_secure ()	1108	&& !enable_secure ()
869	&& getenv ("LIBEV_FLAGS"))	1109	&& getenv ("LIBEV_FLAGS"))
870	flags = atoi (getenv ("LIBEV_FLAGS"));	1110	flags = atoi (getenv ("LIBEV_FLAGS"));
871		1111
872	if (!(flags & 0x0000ffffUL))	1112	if (!(flags & 0x0000ffffUL))
873	flags \|= ev_recommended_backends ();	1113	flags \|= ev_recommended_backends ();
874		1114
875	backend = 0;
876	#if EV_USE_PORT	1115	#if EV_USE_PORT
877	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1116	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878	#endif	1117	#endif
879	#if EV_USE_KQUEUE	1118	#if EV_USE_KQUEUE
880	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1119	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
887	#endif	1126	#endif
888	#if EV_USE_SELECT	1127	#if EV_USE_SELECT
889	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1128	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
890	#endif	1129	#endif
891		1130
892	ev_init (&sigev, sigcb);	1131	ev_init (&pipeev, pipecb);
893	ev_set_priority (&sigev, EV_MAXPRI);	1132	ev_set_priority (&pipeev, EV_MAXPRI);
894	}	1133	}
895	}	1134	}
896		1135
897	static void	1136	static void noinline
898	loop_destroy (EV_P)	1137	loop_destroy (EV_P)
899	{	1138	{
900	int i;	1139	int i;
		1140
		1141	if (ev_is_active (&pipeev))
		1142	{
		1143	ev_ref (EV_A); /* signal watcher */
		1144	ev_io_stop (EV_A_ &pipeev);
		1145
		1146	close (evpipe [0]); evpipe [0] = 0;
		1147	close (evpipe [1]); evpipe [1] = 0;
		1148	}
		1149
		1150	#if EV_USE_INOTIFY
		1151	if (fs_fd >= 0)
		1152	close (fs_fd);
		1153	#endif
		1154
		1155	if (backend_fd >= 0)
		1156	close (backend_fd);
901		1157
902	#if EV_USE_PORT	1158	#if EV_USE_PORT
903	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1159	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904	#endif	1160	#endif
905	#if EV_USE_KQUEUE	1161	#if EV_USE_KQUEUE
…		…
914	#if EV_USE_SELECT	1170	#if EV_USE_SELECT
915	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1171	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
916	#endif	1172	#endif
917		1173
918	for (i = NUMPRI; i--; )	1174	for (i = NUMPRI; i--; )
		1175	{
919	array_free (pending, [i]);	1176	array_free (pending, [i]);
		1177	#if EV_IDLE_ENABLE
		1178	array_free (idle, [i]);
		1179	#endif
		1180	}
		1181
		1182	ev_free (anfds); anfdmax = 0;
920		1183
921	/* have to use the microsoft-never-gets-it-right macro */	1184	/* have to use the microsoft-never-gets-it-right macro */
922	array_free (fdchange, EMPTY0);	1185	array_free (fdchange, EMPTY);
923	array_free (timer, EMPTY0);	1186	array_free (timer, EMPTY);
924	#if EV_PERIODIC_ENABLE	1187	#if EV_PERIODIC_ENABLE
925	array_free (periodic, EMPTY0);	1188	array_free (periodic, EMPTY);
926	#endif	1189	#endif
		1190	#if EV_FORK_ENABLE
927	array_free (idle, EMPTY0);	1191	array_free (fork, EMPTY);
		1192	#endif
928	array_free (prepare, EMPTY0);	1193	array_free (prepare, EMPTY);
929	array_free (check, EMPTY0);	1194	array_free (check, EMPTY);
		1195	#if EV_ASYNC_ENABLE
		1196	array_free (async, EMPTY);
		1197	#endif
930		1198
931	backend = 0;	1199	backend = 0;
932	}	1200	}
933		1201
934	static void	1202	void inline_size infy_fork (EV_P);
		1203
		1204	void inline_size
935	loop_fork (EV_P)	1205	loop_fork (EV_P)
936	{	1206	{
937	#if EV_USE_PORT	1207	#if EV_USE_PORT
938	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1208	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939	#endif	1209	#endif
…		…
941	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1211	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942	#endif	1212	#endif
943	#if EV_USE_EPOLL	1213	#if EV_USE_EPOLL
944	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1214	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
945	#endif	1215	#endif
		1216	#if EV_USE_INOTIFY
		1217	infy_fork (EV_A);
		1218	#endif
946		1219
947	if (ev_is_active (&sigev))	1220	if (ev_is_active (&pipeev))
948	{	1221	{
949	/* default loop */	1222	/* this "locks" the handlers against writing to the pipe */
		1223	/* while we modify the fd vars */
		1224	gotsig = 1;
		1225	#if EV_ASYNC_ENABLE
		1226	gotasync = 1;
		1227	#endif
950		1228
951	ev_ref (EV_A);	1229	ev_ref (EV_A);
952	ev_io_stop (EV_A_ &sigev);	1230	ev_io_stop (EV_A_ &pipeev);
953	close (sigpipe [0]);	1231	close (evpipe [0]);
954	close (sigpipe [1]);	1232	close (evpipe [1]);
955		1233
956	while (pipe (sigpipe))
957	syserr ("(libev) error creating pipe");
958
959	siginit (EV_A);	1234	evpipe_init (EV_A);
		1235	/* now iterate over everything, in case we missed something */
		1236	pipecb (EV_A_ &pipeev, EV_READ);
960	}	1237	}
961		1238
962	postfork = 0;	1239	postfork = 0;
963	}	1240	}
964		1241
…		…
986	}	1263	}
987		1264
988	void	1265	void
989	ev_loop_fork (EV_P)	1266	ev_loop_fork (EV_P)
990	{	1267	{
991	postfork = 1;	1268	postfork = 1; /* must be in line with ev_default_fork */
992	}	1269	}
993		1270
994	#endif	1271	#endif
995		1272
996	#if EV_MULTIPLICITY	1273	#if EV_MULTIPLICITY
…		…
999	#else	1276	#else
1000	int	1277	int
1001	ev_default_loop (unsigned int flags)	1278	ev_default_loop (unsigned int flags)
1002	#endif	1279	#endif
1003	{	1280	{
1004	if (sigpipe [0] == sigpipe [1])
1005	if (pipe (sigpipe))
1006	return 0;
1007
1008	if (!ev_default_loop_ptr)	1281	if (!ev_default_loop_ptr)
1009	{	1282	{
1010	#if EV_MULTIPLICITY	1283	#if EV_MULTIPLICITY
1011	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1284	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1012	#else	1285	#else
…		…
1015		1288
1016	loop_init (EV_A_ flags);	1289	loop_init (EV_A_ flags);
1017		1290
1018	if (ev_backend (EV_A))	1291	if (ev_backend (EV_A))
1019	{	1292	{
1020	siginit (EV_A);
1021
1022	#ifndef _WIN32	1293	#ifndef _WIN32
1023	ev_signal_init (&childev, childcb, SIGCHLD);	1294	ev_signal_init (&childev, childcb, SIGCHLD);
1024	ev_set_priority (&childev, EV_MAXPRI);	1295	ev_set_priority (&childev, EV_MAXPRI);
1025	ev_signal_start (EV_A_ &childev);	1296	ev_signal_start (EV_A_ &childev);
1026	ev_unref (EV_A); /* child watcher should not keep loop alive */	1297	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1043	#ifndef _WIN32	1314	#ifndef _WIN32
1044	ev_ref (EV_A); /* child watcher */	1315	ev_ref (EV_A); /* child watcher */
1045	ev_signal_stop (EV_A_ &childev);	1316	ev_signal_stop (EV_A_ &childev);
1046	#endif	1317	#endif
1047		1318
1048	ev_ref (EV_A); /* signal watcher */
1049	ev_io_stop (EV_A_ &sigev);
1050
1051	close (sigpipe [0]); sigpipe [0] = 0;
1052	close (sigpipe [1]); sigpipe [1] = 0;
1053
1054	loop_destroy (EV_A);	1319	loop_destroy (EV_A);
1055	}	1320	}
1056		1321
1057	void	1322	void
1058	ev_default_fork (void)	1323	ev_default_fork (void)
…		…
1060	#if EV_MULTIPLICITY	1325	#if EV_MULTIPLICITY
1061	struct ev_loop *loop = ev_default_loop_ptr;	1326	struct ev_loop *loop = ev_default_loop_ptr;
1062	#endif	1327	#endif
1063		1328
1064	if (backend)	1329	if (backend)
1065	postfork = 1;	1330	postfork = 1; /* must be in line with ev_loop_fork */
1066	}	1331	}
1067		1332
1068	/*****************************************************************************/	1333	/*****************************************************************************/
1069		1334
1070	int inline_size	1335	void
1071	any_pending (EV_P)	1336	ev_invoke (EV_P_ void *w, int revents)
1072	{	1337	{
1073	int pri;	1338	EV_CB_INVOKE ((W)w, revents);
1074
1075	for (pri = NUMPRI; pri--; )
1076	if (pendingcnt [pri])
1077	return 1;
1078
1079	return 0;
1080	}	1339	}
1081		1340
1082	void inline_speed	1341	void inline_speed
1083	call_pending (EV_P)	1342	call_pending (EV_P)
1084	{	1343	{
…		…
1089	{	1348	{
1090	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1349	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091		1350
1092	if (expect_true (p->w))	1351	if (expect_true (p->w))
1093	{	1352	{
1094	assert (("non-pending watcher on pending list", p->w->pending));	1353	/assert (("non-pending watcher on pending list", p->w->pending));/
1095		1354
1096	p->w->pending = 0;	1355	p->w->pending = 0;
1097	EV_CB_INVOKE (p->w, p->events);	1356	EV_CB_INVOKE (p->w, p->events);
1098	}	1357	}
1099	}	1358	}
…		…
1102	void inline_size	1361	void inline_size
1103	timers_reify (EV_P)	1362	timers_reify (EV_P)
1104	{	1363	{
1105	while (timercnt && ((WT)timers [0])->at <= mn_now)	1364	while (timercnt && ((WT)timers [0])->at <= mn_now)
1106	{	1365	{
1107	ev_timer *w = timers [0];	1366	ev_timer w = (ev_timer )timers [0];
1108		1367
1109	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1368	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1110		1369
1111	/* first reschedule or stop timer */	1370	/* first reschedule or stop timer */
1112	if (w->repeat)	1371	if (w->repeat)
1113	{	1372	{
1114	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1373	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1115		1374
1116	((WT)w)->at += w->repeat;	1375	((WT)w)->at += w->repeat;
1117	if (((WT)w)->at < mn_now)	1376	if (((WT)w)->at < mn_now)
1118	((WT)w)->at = mn_now;	1377	((WT)w)->at = mn_now;
1119		1378
1120	downheap ((WT *)timers, timercnt, 0);	1379	downheap (timers, timercnt, 0);
1121	}	1380	}
1122	else	1381	else
1123	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1382	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1124		1383
1125	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1384	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1130	void inline_size	1389	void inline_size
1131	periodics_reify (EV_P)	1390	periodics_reify (EV_P)
1132	{	1391	{
1133	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1392	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134	{	1393	{
1135	ev_periodic *w = periodics [0];	1394	ev_periodic w = (ev_periodic )periodics [0];
1136		1395
1137	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1396	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1138		1397
1139	/* first reschedule or stop timer */	1398	/* first reschedule or stop timer */
1140	if (w->reschedule_cb)	1399	if (w->reschedule_cb)
1141	{	1400	{
1142	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1401	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1143	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1402	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1144	downheap ((WT *)periodics, periodiccnt, 0);	1403	downheap (periodics, periodiccnt, 0);
1145	}	1404	}
1146	else if (w->interval)	1405	else if (w->interval)
1147	{	1406	{
1148	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1407	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1408	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1149	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1409	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1150	downheap ((WT *)periodics, periodiccnt, 0);	1410	downheap (periodics, periodiccnt, 0);
1151	}	1411	}
1152	else	1412	else
1153	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1413	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1154		1414
1155	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1415	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1162	int i;	1422	int i;
1163		1423
1164	/* adjust periodics after time jump */	1424	/* adjust periodics after time jump */
1165	for (i = 0; i < periodiccnt; ++i)	1425	for (i = 0; i < periodiccnt; ++i)
1166	{	1426	{
1167	ev_periodic *w = periodics [i];	1427	ev_periodic w = (ev_periodic )periodics [i];
1168		1428
1169	if (w->reschedule_cb)	1429	if (w->reschedule_cb)
1170	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1430	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1171	else if (w->interval)	1431	else if (w->interval)
1172	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1432	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1173	}	1433	}
1174		1434
1175	/* now rebuild the heap */	1435	/* now rebuild the heap */
1176	for (i = periodiccnt >> 1; i--; )	1436	for (i = periodiccnt >> 1; i--; )
1177	downheap ((WT *)periodics, periodiccnt, i);	1437	downheap (periodics, periodiccnt, i);
1178	}	1438	}
1179	#endif	1439	#endif
1180		1440
		1441	#if EV_IDLE_ENABLE
1181	int inline_size	1442	void inline_size
1182	time_update_monotonic (EV_P)	1443	idle_reify (EV_P)
1183	{	1444	{
		1445	if (expect_false (idleall))
		1446	{
		1447	int pri;
		1448
		1449	for (pri = NUMPRI; pri--; )
		1450	{
		1451	if (pendingcnt [pri])
		1452	break;
		1453
		1454	if (idlecnt [pri])
		1455	{
		1456	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1457	break;
		1458	}
		1459	}
		1460	}
		1461	}
		1462	#endif
		1463
		1464	void inline_speed
		1465	time_update (EV_P_ ev_tstamp max_block)
		1466	{
		1467	int i;
		1468
		1469	#if EV_USE_MONOTONIC
		1470	if (expect_true (have_monotonic))
		1471	{
		1472	ev_tstamp odiff = rtmn_diff;
		1473
1184	mn_now = get_clock ();	1474	mn_now = get_clock ();
1185		1475
		1476	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1477	/* interpolate in the meantime */
1186	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1478	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1187	{	1479	{
1188	ev_rt_now = rtmn_diff + mn_now;	1480	ev_rt_now = rtmn_diff + mn_now;
1189	return 0;	1481	return;
1190	}	1482	}
1191	else	1483
1192	{
1193	now_floor = mn_now;	1484	now_floor = mn_now;
1194	ev_rt_now = ev_time ();	1485	ev_rt_now = ev_time ();
1195	return 1;
1196	}
1197	}
1198		1486
1199	void inline_size	1487	/* loop a few times, before making important decisions.
1200	time_update (EV_P)	1488	* on the choice of "4": one iteration isn't enough,
1201	{	1489	* in case we get preempted during the calls to
1202	int i;	1490	* ev_time and get_clock. a second call is almost guaranteed
1203		1491	* to succeed in that case, though. and looping a few more times
1204	#if EV_USE_MONOTONIC	1492	* doesn't hurt either as we only do this on time-jumps or
1205	if (expect_true (have_monotonic))	1493	* in the unlikely event of having been preempted here.
1206	{	1494	*/
1207	if (time_update_monotonic (EV_A))	1495	for (i = 4; --i; )
1208	{	1496	{
1209	ev_tstamp odiff = rtmn_diff;
1210
1211	/* loop a few times, before making important decisions.
1212	* on the choice of "4": one iteration isn't enough,
1213	* in case we get preempted during the calls to
1214	* ev_time and get_clock. a second call is almost guarenteed
1215	* to succeed in that case, though. and looping a few more times
1216	* doesn't hurt either as we only do this on time-jumps or
1217	* in the unlikely event of getting preempted here.
1218	*/
1219	for (i = 4; --i; )
1220	{
1221	rtmn_diff = ev_rt_now - mn_now;	1497	rtmn_diff = ev_rt_now - mn_now;
1222		1498
1223	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1499	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1224	return; /* all is well */	1500	return; /* all is well */
1225		1501
1226	ev_rt_now = ev_time ();	1502	ev_rt_now = ev_time ();
1227	mn_now = get_clock ();	1503	mn_now = get_clock ();
1228	now_floor = mn_now;	1504	now_floor = mn_now;
1229	}	1505	}
1230		1506
1231	# if EV_PERIODIC_ENABLE	1507	# if EV_PERIODIC_ENABLE
1232	periodics_reschedule (EV_A);	1508	periodics_reschedule (EV_A);
1233	# endif	1509	# endif
1234	/* no timer adjustment, as the monotonic clock doesn't jump */	1510	/* no timer adjustment, as the monotonic clock doesn't jump */
1235	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1511	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1236	}
1237	}	1512	}
1238	else	1513	else
1239	#endif	1514	#endif
1240	{	1515	{
1241	ev_rt_now = ev_time ();	1516	ev_rt_now = ev_time ();
1242		1517
1243	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1518	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1244	{	1519	{
1245	#if EV_PERIODIC_ENABLE	1520	#if EV_PERIODIC_ENABLE
1246	periodics_reschedule (EV_A);	1521	periodics_reschedule (EV_A);
1247	#endif	1522	#endif
1248
1249	/* adjust timers. this is easy, as the offset is the same for all */	1523	/* adjust timers. this is easy, as the offset is the same for all of them */
1250	for (i = 0; i < timercnt; ++i)	1524	for (i = 0; i < timercnt; ++i)
1251	((WT)timers [i])->at += ev_rt_now - mn_now;	1525	((WT)timers [i])->at += ev_rt_now - mn_now;
1252	}	1526	}
1253		1527
1254	mn_now = ev_rt_now;	1528	mn_now = ev_rt_now;
…		…
1274	{	1548	{
1275	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1549	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
1276	? EVUNLOOP_ONE	1550	? EVUNLOOP_ONE
1277	: EVUNLOOP_CANCEL;	1551	: EVUNLOOP_CANCEL;
1278		1552
1279	while (activecnt)	1553	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1554
		1555	do
1280	{	1556	{
1281	/* we might have forked, so reify kernel state if necessary */	1557	#ifndef _WIN32
		1558	if (expect_false (curpid)) /* penalise the forking check even more */
		1559	if (expect_false (getpid () != curpid))
		1560	{
		1561	curpid = getpid ();
		1562	postfork = 1;
		1563	}
		1564	#endif
		1565
		1566	#if EV_FORK_ENABLE
		1567	/* we might have forked, so queue fork handlers */
1282	if (expect_false (postfork))	1568	if (expect_false (postfork))
1283	if (forkcnt)	1569	if (forkcnt)
1284	{	1570	{
1285	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1571	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1286	call_pending (EV_A);	1572	call_pending (EV_A);
1287	}	1573	}
		1574	#endif
1288		1575
1289	/* queue check watchers (and execute them) */	1576	/* queue prepare watchers (and execute them) */
1290	if (expect_false (preparecnt))	1577	if (expect_false (preparecnt))
1291	{	1578	{
1292	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1579	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1293	call_pending (EV_A);	1580	call_pending (EV_A);
1294	}	1581	}
1295		1582
		1583	if (expect_false (!activecnt))
		1584	break;
		1585
1296	/* we might have forked, so reify kernel state if necessary */	1586	/* we might have forked, so reify kernel state if necessary */
1297	if (expect_false (postfork))	1587	if (expect_false (postfork))
1298	loop_fork (EV_A);	1588	loop_fork (EV_A);
1299		1589
1300	/* update fd-related kernel structures */	1590	/* update fd-related kernel structures */
1301	fd_reify (EV_A);	1591	fd_reify (EV_A);
1302		1592
1303	/* calculate blocking time */	1593	/* calculate blocking time */
1304	{	1594	{
1305	double block;	1595	ev_tstamp waittime = 0.;
		1596	ev_tstamp sleeptime = 0.;
1306		1597
1307	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1598	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1308	block = 0.; /* do not block at all */
1309	else
1310	{	1599	{
1311	/* update time to cancel out callback processing overhead */	1600	/* update time to cancel out callback processing overhead */
1312	#if EV_USE_MONOTONIC
1313	if (expect_true (have_monotonic))
1314	time_update_monotonic (EV_A);	1601	time_update (EV_A_ 1e100);
1315	else
1316	#endif
1317	{
1318	ev_rt_now = ev_time ();
1319	mn_now = ev_rt_now;
1320	}
1321		1602
1322	block = MAX_BLOCKTIME;	1603	waittime = MAX_BLOCKTIME;
1323		1604
1324	if (timercnt)	1605	if (timercnt)
1325	{	1606	{
1326	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1607	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1327	if (block > to) block = to;	1608	if (waittime > to) waittime = to;
1328	}	1609	}
1329		1610
1330	#if EV_PERIODIC_ENABLE	1611	#if EV_PERIODIC_ENABLE
1331	if (periodiccnt)	1612	if (periodiccnt)
1332	{	1613	{
1333	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1614	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1334	if (block > to) block = to;	1615	if (waittime > to) waittime = to;
1335	}	1616	}
1336	#endif	1617	#endif
1337		1618
1338	if (expect_false (block < 0.)) block = 0.;	1619	if (expect_false (waittime < timeout_blocktime))
		1620	waittime = timeout_blocktime;
		1621
		1622	sleeptime = waittime - backend_fudge;
		1623
		1624	if (expect_true (sleeptime > io_blocktime))
		1625	sleeptime = io_blocktime;
		1626
		1627	if (sleeptime)
		1628	{
		1629	ev_sleep (sleeptime);
		1630	waittime -= sleeptime;
		1631	}
1339	}	1632	}
1340		1633
		1634	++loop_count;
1341	backend_poll (EV_A_ block);	1635	backend_poll (EV_A_ waittime);
		1636
		1637	/* update ev_rt_now, do magic */
		1638	time_update (EV_A_ waittime + sleeptime);
1342	}	1639	}
1343
1344	/* update ev_rt_now, do magic */
1345	time_update (EV_A);
1346		1640
1347	/* queue pending timers and reschedule them */	1641	/* queue pending timers and reschedule them */
1348	timers_reify (EV_A); /* relative timers called last */	1642	timers_reify (EV_A); /* relative timers called last */
1349	#if EV_PERIODIC_ENABLE	1643	#if EV_PERIODIC_ENABLE
1350	periodics_reify (EV_A); /* absolute timers called first */	1644	periodics_reify (EV_A); /* absolute timers called first */
1351	#endif	1645	#endif
1352		1646
		1647	#if EV_IDLE_ENABLE
1353	/* queue idle watchers unless other events are pending */	1648	/* queue idle watchers unless other events are pending */
1354	if (idlecnt && !any_pending (EV_A))	1649	idle_reify (EV_A);
1355	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1650	#endif
1356		1651
1357	/* queue check watchers, to be executed first */	1652	/* queue check watchers, to be executed first */
1358	if (expect_false (checkcnt))	1653	if (expect_false (checkcnt))
1359	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1654	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1360		1655
1361	call_pending (EV_A);	1656	call_pending (EV_A);
1362		1657
1363	if (expect_false (loop_done))
1364	break;
1365	}	1658	}
		1659	while (expect_true (activecnt && !loop_done));
1366		1660
1367	if (loop_done == EVUNLOOP_ONE)	1661	if (loop_done == EVUNLOOP_ONE)
1368	loop_done = EVUNLOOP_CANCEL;	1662	loop_done = EVUNLOOP_CANCEL;
1369	}	1663	}
1370		1664
…		…
1397	head = &(*head)->next;	1691	head = &(*head)->next;
1398	}	1692	}
1399	}	1693	}
1400		1694
1401	void inline_speed	1695	void inline_speed
1402	ev_clear_pending (EV_P_ W w)	1696	clear_pending (EV_P_ W w)
1403	{	1697	{
1404	if (w->pending)	1698	if (w->pending)
1405	{	1699	{
1406	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1700	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1407	w->pending = 0;	1701	w->pending = 0;
1408	}	1702	}
1409	}	1703	}
1410		1704
		1705	int
		1706	ev_clear_pending (EV_P_ void *w)
		1707	{
		1708	W w_ = (W)w;
		1709	int pending = w_->pending;
		1710
		1711	if (expect_true (pending))
		1712	{
		1713	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1714	w_->pending = 0;
		1715	p->w = 0;
		1716	return p->events;
		1717	}
		1718	else
		1719	return 0;
		1720	}
		1721
		1722	void inline_size
		1723	pri_adjust (EV_P_ W w)
		1724	{
		1725	int pri = w->priority;
		1726	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1727	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1728	w->priority = pri;
		1729	}
		1730
1411	void inline_speed	1731	void inline_speed
1412	ev_start (EV_P_ W w, int active)	1732	ev_start (EV_P_ W w, int active)
1413	{	1733	{
1414	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1734	pri_adjust (EV_A_ w);
1415	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1416
1417	w->active = active;	1735	w->active = active;
1418	ev_ref (EV_A);	1736	ev_ref (EV_A);
1419	}	1737	}
1420		1738
1421	void inline_size	1739	void inline_size
…		…
1425	w->active = 0;	1743	w->active = 0;
1426	}	1744	}
1427		1745
1428	/*****************************************************************************/	1746	/*****************************************************************************/
1429		1747
1430	void	1748	void noinline
1431	ev_io_start (EV_P_ ev_io *w)	1749	ev_io_start (EV_P_ ev_io *w)
1432	{	1750	{
1433	int fd = w->fd;	1751	int fd = w->fd;
1434		1752
1435	if (expect_false (ev_is_active (w)))	1753	if (expect_false (ev_is_active (w)))
…		…
1437		1755
1438	assert (("ev_io_start called with negative fd", fd >= 0));	1756	assert (("ev_io_start called with negative fd", fd >= 0));
1439		1757
1440	ev_start (EV_A_ (W)w, 1);	1758	ev_start (EV_A_ (W)w, 1);
1441	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1759	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1442	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1760	wlist_add (&anfds[fd].head, (WL)w);
1443		1761
1444	fd_change (EV_A_ fd);	1762	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1763	w->events &= ~EV_IOFDSET;
1445	}	1764	}
1446		1765
1447	void	1766	void noinline
1448	ev_io_stop (EV_P_ ev_io *w)	1767	ev_io_stop (EV_P_ ev_io *w)
1449	{	1768	{
1450	ev_clear_pending (EV_A_ (W)w);	1769	clear_pending (EV_A_ (W)w);
1451	if (expect_false (!ev_is_active (w)))	1770	if (expect_false (!ev_is_active (w)))
1452	return;	1771	return;
1453		1772
1454	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1773	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1455		1774
1456	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1775	wlist_del (&anfds[w->fd].head, (WL)w);
1457	ev_stop (EV_A_ (W)w);	1776	ev_stop (EV_A_ (W)w);
1458		1777
1459	fd_change (EV_A_ w->fd);	1778	fd_change (EV_A_ w->fd, 1);
1460	}	1779	}
1461		1780
1462	void	1781	void noinline
1463	ev_timer_start (EV_P_ ev_timer *w)	1782	ev_timer_start (EV_P_ ev_timer *w)
1464	{	1783	{
1465	if (expect_false (ev_is_active (w)))	1784	if (expect_false (ev_is_active (w)))
1466	return;	1785	return;
1467		1786
1468	((WT)w)->at += mn_now;	1787	((WT)w)->at += mn_now;
1469		1788
1470	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1789	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1471		1790
1472	ev_start (EV_A_ (W)w, ++timercnt);	1791	ev_start (EV_A_ (W)w, ++timercnt);
1473	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1792	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1474	timers [timercnt - 1] = w;	1793	timers [timercnt - 1] = (WT)w;
1475	upheap ((WT *)timers, timercnt - 1);	1794	upheap (timers, timercnt - 1);
1476		1795
1477	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1796	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1478	}	1797	}
1479		1798
1480	void	1799	void noinline
1481	ev_timer_stop (EV_P_ ev_timer *w)	1800	ev_timer_stop (EV_P_ ev_timer *w)
1482	{	1801	{
1483	ev_clear_pending (EV_A_ (W)w);	1802	clear_pending (EV_A_ (W)w);
1484	if (expect_false (!ev_is_active (w)))	1803	if (expect_false (!ev_is_active (w)))
1485	return;	1804	return;
1486		1805
1487	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1806	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1488		1807
		1808	{
		1809	int active = ((W)w)->active;
		1810
1489	if (expect_true (((W)w)->active < timercnt--))	1811	if (expect_true (--active < --timercnt))
1490	{	1812	{
1491	timers [((W)w)->active - 1] = timers [timercnt];	1813	timers [active] = timers [timercnt];
1492	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1814	adjustheap (timers, timercnt, active);
1493	}	1815	}
		1816	}
1494		1817
1495	((WT)w)->at -= mn_now;	1818	((WT)w)->at -= mn_now;
1496		1819
1497	ev_stop (EV_A_ (W)w);	1820	ev_stop (EV_A_ (W)w);
1498	}	1821	}
1499		1822
1500	void	1823	void noinline
1501	ev_timer_again (EV_P_ ev_timer *w)	1824	ev_timer_again (EV_P_ ev_timer *w)
1502	{	1825	{
1503	if (ev_is_active (w))	1826	if (ev_is_active (w))
1504	{	1827	{
1505	if (w->repeat)	1828	if (w->repeat)
1506	{	1829	{
1507	((WT)w)->at = mn_now + w->repeat;	1830	((WT)w)->at = mn_now + w->repeat;
1508	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1831	adjustheap (timers, timercnt, ((W)w)->active - 1);
1509	}	1832	}
1510	else	1833	else
1511	ev_timer_stop (EV_A_ w);	1834	ev_timer_stop (EV_A_ w);
1512	}	1835	}
1513	else if (w->repeat)	1836	else if (w->repeat)
…		…
1516	ev_timer_start (EV_A_ w);	1839	ev_timer_start (EV_A_ w);
1517	}	1840	}
1518	}	1841	}
1519		1842
1520	#if EV_PERIODIC_ENABLE	1843	#if EV_PERIODIC_ENABLE
1521	void	1844	void noinline
1522	ev_periodic_start (EV_P_ ev_periodic *w)	1845	ev_periodic_start (EV_P_ ev_periodic *w)
1523	{	1846	{
1524	if (expect_false (ev_is_active (w)))	1847	if (expect_false (ev_is_active (w)))
1525	return;	1848	return;
1526		1849
…		…
1528	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1851	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1529	else if (w->interval)	1852	else if (w->interval)
1530	{	1853	{
1531	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1854	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1532	/* this formula differs from the one in periodic_reify because we do not always round up */	1855	/* this formula differs from the one in periodic_reify because we do not always round up */
1533	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1856	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1534	}	1857	}
		1858	else
		1859	((WT)w)->at = w->offset;
1535		1860
1536	ev_start (EV_A_ (W)w, ++periodiccnt);	1861	ev_start (EV_A_ (W)w, ++periodiccnt);
1537	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1862	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1538	periodics [periodiccnt - 1] = w;	1863	periodics [periodiccnt - 1] = (WT)w;
1539	upheap ((WT *)periodics, periodiccnt - 1);	1864	upheap (periodics, periodiccnt - 1);
1540		1865
1541	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1866	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1542	}	1867	}
1543		1868
1544	void	1869	void noinline
1545	ev_periodic_stop (EV_P_ ev_periodic *w)	1870	ev_periodic_stop (EV_P_ ev_periodic *w)
1546	{	1871	{
1547	ev_clear_pending (EV_A_ (W)w);	1872	clear_pending (EV_A_ (W)w);
1548	if (expect_false (!ev_is_active (w)))	1873	if (expect_false (!ev_is_active (w)))
1549	return;	1874	return;
1550		1875
1551	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1876	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1552		1877
		1878	{
		1879	int active = ((W)w)->active;
		1880
1553	if (expect_true (((W)w)->active < periodiccnt--))	1881	if (expect_true (--active < --periodiccnt))
1554	{	1882	{
1555	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1883	periodics [active] = periodics [periodiccnt];
1556	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1884	adjustheap (periodics, periodiccnt, active);
1557	}	1885	}
		1886	}
1558		1887
1559	ev_stop (EV_A_ (W)w);	1888	ev_stop (EV_A_ (W)w);
1560	}	1889	}
1561		1890
1562	void	1891	void noinline
1563	ev_periodic_again (EV_P_ ev_periodic *w)	1892	ev_periodic_again (EV_P_ ev_periodic *w)
1564	{	1893	{
1565	/* TODO: use adjustheap and recalculation */	1894	/* TODO: use adjustheap and recalculation */
1566	ev_periodic_stop (EV_A_ w);	1895	ev_periodic_stop (EV_A_ w);
1567	ev_periodic_start (EV_A_ w);	1896	ev_periodic_start (EV_A_ w);
…		…
1570		1899
1571	#ifndef SA_RESTART	1900	#ifndef SA_RESTART
1572	# define SA_RESTART 0	1901	# define SA_RESTART 0
1573	#endif	1902	#endif
1574		1903
1575	void	1904	void noinline
1576	ev_signal_start (EV_P_ ev_signal *w)	1905	ev_signal_start (EV_P_ ev_signal *w)
1577	{	1906	{
1578	#if EV_MULTIPLICITY	1907	#if EV_MULTIPLICITY
1579	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1908	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1580	#endif	1909	#endif
1581	if (expect_false (ev_is_active (w)))	1910	if (expect_false (ev_is_active (w)))
1582	return;	1911	return;
1583		1912
1584	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1913	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1585		1914
		1915	evpipe_init (EV_A);
		1916
		1917	{
		1918	#ifndef _WIN32
		1919	sigset_t full, prev;
		1920	sigfillset (&full);
		1921	sigprocmask (SIG_SETMASK, &full, &prev);
		1922	#endif
		1923
		1924	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1925
		1926	#ifndef _WIN32
		1927	sigprocmask (SIG_SETMASK, &prev, 0);
		1928	#endif
		1929	}
		1930
1586	ev_start (EV_A_ (W)w, 1);	1931	ev_start (EV_A_ (W)w, 1);
1587	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1588	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1932	wlist_add (&signals [w->signum - 1].head, (WL)w);
1589		1933
1590	if (!((WL)w)->next)	1934	if (!((WL)w)->next)
1591	{	1935	{
1592	#if _WIN32	1936	#if _WIN32
1593	signal (w->signum, sighandler);	1937	signal (w->signum, sighandler);
…		…
1599	sigaction (w->signum, &sa, 0);	1943	sigaction (w->signum, &sa, 0);
1600	#endif	1944	#endif
1601	}	1945	}
1602	}	1946	}
1603		1947
1604	void	1948	void noinline
1605	ev_signal_stop (EV_P_ ev_signal *w)	1949	ev_signal_stop (EV_P_ ev_signal *w)
1606	{	1950	{
1607	ev_clear_pending (EV_A_ (W)w);	1951	clear_pending (EV_A_ (W)w);
1608	if (expect_false (!ev_is_active (w)))	1952	if (expect_false (!ev_is_active (w)))
1609	return;	1953	return;
1610		1954
1611	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1955	wlist_del (&signals [w->signum - 1].head, (WL)w);
1612	ev_stop (EV_A_ (W)w);	1956	ev_stop (EV_A_ (W)w);
1613		1957
1614	if (!signals [w->signum - 1].head)	1958	if (!signals [w->signum - 1].head)
1615	signal (w->signum, SIG_DFL);	1959	signal (w->signum, SIG_DFL);
1616	}	1960	}
…		…
1623	#endif	1967	#endif
1624	if (expect_false (ev_is_active (w)))	1968	if (expect_false (ev_is_active (w)))
1625	return;	1969	return;
1626		1970
1627	ev_start (EV_A_ (W)w, 1);	1971	ev_start (EV_A_ (W)w, 1);
1628	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1972	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1629	}	1973	}
1630		1974
1631	void	1975	void
1632	ev_child_stop (EV_P_ ev_child *w)	1976	ev_child_stop (EV_P_ ev_child *w)
1633	{	1977	{
1634	ev_clear_pending (EV_A_ (W)w);	1978	clear_pending (EV_A_ (W)w);
1635	if (expect_false (!ev_is_active (w)))	1979	if (expect_false (!ev_is_active (w)))
1636	return;	1980	return;
1637		1981
1638	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1982	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1639	ev_stop (EV_A_ (W)w);	1983	ev_stop (EV_A_ (W)w);
1640	}	1984	}
1641		1985
1642	#if EV_STAT_ENABLE	1986	#if EV_STAT_ENABLE
1643		1987
…		…
1647	# endif	1991	# endif
1648		1992
1649	#define DEF_STAT_INTERVAL 5.0074891	1993	#define DEF_STAT_INTERVAL 5.0074891
1650	#define MIN_STAT_INTERVAL 0.1074891	1994	#define MIN_STAT_INTERVAL 0.1074891
1651		1995
		1996	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1997
		1998	#if EV_USE_INOTIFY
		1999	# define EV_INOTIFY_BUFSIZE 8192
		2000
		2001	static void noinline
		2002	infy_add (EV_P_ ev_stat *w)
		2003	{
		2004	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
		2005
		2006	if (w->wd < 0)
		2007	{
		2008	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		2009
		2010	/* monitor some parent directory for speedup hints */
		2011	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
		2012	{
		2013	char path [4096];
		2014	strcpy (path, w->path);
		2015
		2016	do
		2017	{
		2018	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
		2019	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
		2020
		2021	char *pend = strrchr (path, '/');
		2022
		2023	if (!pend)
		2024	break; /* whoops, no '/', complain to your admin */
		2025
		2026	*pend = 0;
		2027	w->wd = inotify_add_watch (fs_fd, path, mask);
		2028	}
		2029	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
		2030	}
		2031	}
		2032	else
		2033	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		2034
		2035	if (w->wd >= 0)
		2036	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2037	}
		2038
		2039	static void noinline
		2040	infy_del (EV_P_ ev_stat *w)
		2041	{
		2042	int slot;
		2043	int wd = w->wd;
		2044
		2045	if (wd < 0)
		2046	return;
		2047
		2048	w->wd = -2;
		2049	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2050	wlist_del (&fs_hash [slot].head, (WL)w);
		2051
		2052	/* remove this watcher, if others are watching it, they will rearm */
		2053	inotify_rm_watch (fs_fd, wd);
		2054	}
		2055
		2056	static void noinline
		2057	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2058	{
		2059	if (slot < 0)
		2060	/* overflow, need to check for all hahs slots */
		2061	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2062	infy_wd (EV_A_ slot, wd, ev);
		2063	else
		2064	{
		2065	WL w_;
		2066
		2067	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2068	{
		2069	ev_stat w = (ev_stat )w_;
		2070	w_ = w_->next; /* lets us remove this watcher and all before it */
		2071
		2072	if (w->wd == wd \|\| wd == -1)
		2073	{
		2074	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
		2075	{
		2076	w->wd = -1;
		2077	infy_add (EV_A_ w); /* re-add, no matter what */
		2078	}
		2079
		2080	stat_timer_cb (EV_A_ &w->timer, 0);
		2081	}
		2082	}
		2083	}
		2084	}
		2085
		2086	static void
		2087	infy_cb (EV_P_ ev_io *w, int revents)
		2088	{
		2089	char buf [EV_INOTIFY_BUFSIZE];
		2090	struct inotify_event ev = (struct inotify_event )buf;
		2091	int ofs;
		2092	int len = read (fs_fd, buf, sizeof (buf));
		2093
		2094	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2095	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2096	}
		2097
		2098	void inline_size
		2099	infy_init (EV_P)
		2100	{
		2101	if (fs_fd != -2)
		2102	return;
		2103
		2104	fs_fd = inotify_init ();
		2105
		2106	if (fs_fd >= 0)
		2107	{
		2108	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2109	ev_set_priority (&fs_w, EV_MAXPRI);
		2110	ev_io_start (EV_A_ &fs_w);
		2111	}
		2112	}
		2113
		2114	void inline_size
		2115	infy_fork (EV_P)
		2116	{
		2117	int slot;
		2118
		2119	if (fs_fd < 0)
		2120	return;
		2121
		2122	close (fs_fd);
		2123	fs_fd = inotify_init ();
		2124
		2125	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2126	{
		2127	WL w_ = fs_hash [slot].head;
		2128	fs_hash [slot].head = 0;
		2129
		2130	while (w_)
		2131	{
		2132	ev_stat w = (ev_stat )w_;
		2133	w_ = w_->next; /* lets us add this watcher */
		2134
		2135	w->wd = -1;
		2136
		2137	if (fs_fd >= 0)
		2138	infy_add (EV_A_ w); /* re-add, no matter what */
		2139	else
		2140	ev_timer_start (EV_A_ &w->timer);
		2141	}
		2142
		2143	}
		2144	}
		2145
		2146	#endif
		2147
1652	void	2148	void
1653	ev_stat_stat (EV_P_ ev_stat *w)	2149	ev_stat_stat (EV_P_ ev_stat *w)
1654	{	2150	{
1655	if (lstat (w->path, &w->attr) < 0)	2151	if (lstat (w->path, &w->attr) < 0)
1656	w->attr.st_nlink = 0;	2152	w->attr.st_nlink = 0;
1657	else if (!w->attr.st_nlink)	2153	else if (!w->attr.st_nlink)
1658	w->attr.st_nlink = 1;	2154	w->attr.st_nlink = 1;
1659	}	2155	}
1660		2156
1661	static void	2157	static void noinline
1662	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2158	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1663	{	2159	{
1664	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	2160	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1665		2161
1666	/* we copy this here each the time so that */	2162	/* we copy this here each the time so that */
1667	/* prev has the old value when the callback gets invoked */	2163	/* prev has the old value when the callback gets invoked */
1668	w->prev = w->attr;	2164	w->prev = w->attr;
1669	ev_stat_stat (EV_A_ w);	2165	ev_stat_stat (EV_A_ w);
1670		2166
1671	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2167	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2168	if (
		2169	w->prev.st_dev != w->attr.st_dev
		2170	\|\| w->prev.st_ino != w->attr.st_ino
		2171	\|\| w->prev.st_mode != w->attr.st_mode
		2172	\|\| w->prev.st_nlink != w->attr.st_nlink
		2173	\|\| w->prev.st_uid != w->attr.st_uid
		2174	\|\| w->prev.st_gid != w->attr.st_gid
		2175	\|\| w->prev.st_rdev != w->attr.st_rdev
		2176	\|\| w->prev.st_size != w->attr.st_size
		2177	\|\| w->prev.st_atime != w->attr.st_atime
		2178	\|\| w->prev.st_mtime != w->attr.st_mtime
		2179	\|\| w->prev.st_ctime != w->attr.st_ctime
		2180	) {
		2181	#if EV_USE_INOTIFY
		2182	infy_del (EV_A_ w);
		2183	infy_add (EV_A_ w);
		2184	ev_stat_stat (EV_A_ w); /* avoid race... */
		2185	#endif
		2186
1672	ev_feed_event (EV_A_ w, EV_STAT);	2187	ev_feed_event (EV_A_ w, EV_STAT);
		2188	}
1673	}	2189	}
1674		2190
1675	void	2191	void
1676	ev_stat_start (EV_P_ ev_stat *w)	2192	ev_stat_start (EV_P_ ev_stat *w)
1677	{	2193	{
…		…
1687	if (w->interval < MIN_STAT_INTERVAL)	2203	if (w->interval < MIN_STAT_INTERVAL)
1688	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2204	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1689		2205
1690	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2206	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1691	ev_set_priority (&w->timer, ev_priority (w));	2207	ev_set_priority (&w->timer, ev_priority (w));
		2208
		2209	#if EV_USE_INOTIFY
		2210	infy_init (EV_A);
		2211
		2212	if (fs_fd >= 0)
		2213	infy_add (EV_A_ w);
		2214	else
		2215	#endif
1692	ev_timer_start (EV_A_ &w->timer);	2216	ev_timer_start (EV_A_ &w->timer);
1693		2217
1694	ev_start (EV_A_ (W)w, 1);	2218	ev_start (EV_A_ (W)w, 1);
1695	}	2219	}
1696		2220
1697	void	2221	void
1698	ev_stat_stop (EV_P_ ev_stat *w)	2222	ev_stat_stop (EV_P_ ev_stat *w)
1699	{	2223	{
1700	ev_clear_pending (EV_A_ (W)w);	2224	clear_pending (EV_A_ (W)w);
1701	if (expect_false (!ev_is_active (w)))	2225	if (expect_false (!ev_is_active (w)))
1702	return;	2226	return;
1703		2227
		2228	#if EV_USE_INOTIFY
		2229	infy_del (EV_A_ w);
		2230	#endif
1704	ev_timer_stop (EV_A_ &w->timer);	2231	ev_timer_stop (EV_A_ &w->timer);
1705		2232
1706	ev_stop (EV_A_ (W)w);	2233	ev_stop (EV_A_ (W)w);
1707	}	2234	}
1708	#endif	2235	#endif
1709		2236
		2237	#if EV_IDLE_ENABLE
1710	void	2238	void
1711	ev_idle_start (EV_P_ ev_idle *w)	2239	ev_idle_start (EV_P_ ev_idle *w)
1712	{	2240	{
1713	if (expect_false (ev_is_active (w)))	2241	if (expect_false (ev_is_active (w)))
1714	return;	2242	return;
1715		2243
		2244	pri_adjust (EV_A_ (W)w);
		2245
		2246	{
		2247	int active = ++idlecnt [ABSPRI (w)];
		2248
		2249	++idleall;
1716	ev_start (EV_A_ (W)w, ++idlecnt);	2250	ev_start (EV_A_ (W)w, active);
		2251
1717	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2252	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1718	idles [idlecnt - 1] = w;	2253	idles [ABSPRI (w)][active - 1] = w;
		2254	}
1719	}	2255	}
1720		2256
1721	void	2257	void
1722	ev_idle_stop (EV_P_ ev_idle *w)	2258	ev_idle_stop (EV_P_ ev_idle *w)
1723	{	2259	{
1724	ev_clear_pending (EV_A_ (W)w);	2260	clear_pending (EV_A_ (W)w);
1725	if (expect_false (!ev_is_active (w)))	2261	if (expect_false (!ev_is_active (w)))
1726	return;	2262	return;
1727		2263
1728	{	2264	{
1729	int active = ((W)w)->active;	2265	int active = ((W)w)->active;
1730	idles [active - 1] = idles [--idlecnt];	2266
		2267	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1731	((W)idles [active - 1])->active = active;	2268	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2269
		2270	ev_stop (EV_A_ (W)w);
		2271	--idleall;
1732	}	2272	}
1733
1734	ev_stop (EV_A_ (W)w);
1735	}	2273	}
		2274	#endif
1736		2275
1737	void	2276	void
1738	ev_prepare_start (EV_P_ ev_prepare *w)	2277	ev_prepare_start (EV_P_ ev_prepare *w)
1739	{	2278	{
1740	if (expect_false (ev_is_active (w)))	2279	if (expect_false (ev_is_active (w)))
…		…
1746	}	2285	}
1747		2286
1748	void	2287	void
1749	ev_prepare_stop (EV_P_ ev_prepare *w)	2288	ev_prepare_stop (EV_P_ ev_prepare *w)
1750	{	2289	{
1751	ev_clear_pending (EV_A_ (W)w);	2290	clear_pending (EV_A_ (W)w);
1752	if (expect_false (!ev_is_active (w)))	2291	if (expect_false (!ev_is_active (w)))
1753	return;	2292	return;
1754		2293
1755	{	2294	{
1756	int active = ((W)w)->active;	2295	int active = ((W)w)->active;
…		…
1773	}	2312	}
1774		2313
1775	void	2314	void
1776	ev_check_stop (EV_P_ ev_check *w)	2315	ev_check_stop (EV_P_ ev_check *w)
1777	{	2316	{
1778	ev_clear_pending (EV_A_ (W)w);	2317	clear_pending (EV_A_ (W)w);
1779	if (expect_false (!ev_is_active (w)))	2318	if (expect_false (!ev_is_active (w)))
1780	return;	2319	return;
1781		2320
1782	{	2321	{
1783	int active = ((W)w)->active;	2322	int active = ((W)w)->active;
…		…
1790		2329
1791	#if EV_EMBED_ENABLE	2330	#if EV_EMBED_ENABLE
1792	void noinline	2331	void noinline
1793	ev_embed_sweep (EV_P_ ev_embed *w)	2332	ev_embed_sweep (EV_P_ ev_embed *w)
1794	{	2333	{
1795	ev_loop (w->loop, EVLOOP_NONBLOCK);	2334	ev_loop (w->other, EVLOOP_NONBLOCK);
1796	}	2335	}
1797		2336
1798	static void	2337	static void
1799	embed_cb (EV_P_ ev_io *io, int revents)	2338	embed_io_cb (EV_P_ ev_io *io, int revents)
1800	{	2339	{
1801	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2340	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
1802		2341
1803	if (ev_cb (w))	2342	if (ev_cb (w))
1804	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2343	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1805	else	2344	else
1806	ev_embed_sweep (loop, w);	2345	ev_loop (w->other, EVLOOP_NONBLOCK);
1807	}	2346	}
		2347
		2348	static void
		2349	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2350	{
		2351	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2352
		2353	{
		2354	struct ev_loop *loop = w->other;
		2355
		2356	while (fdchangecnt)
		2357	{
		2358	fd_reify (EV_A);
		2359	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2360	}
		2361	}
		2362	}
		2363
		2364	#if 0
		2365	static void
		2366	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2367	{
		2368	ev_idle_stop (EV_A_ idle);
		2369	}
		2370	#endif
1808		2371
1809	void	2372	void
1810	ev_embed_start (EV_P_ ev_embed *w)	2373	ev_embed_start (EV_P_ ev_embed *w)
1811	{	2374	{
1812	if (expect_false (ev_is_active (w)))	2375	if (expect_false (ev_is_active (w)))
1813	return;	2376	return;
1814		2377
1815	{	2378	{
1816	struct ev_loop *loop = w->loop;	2379	struct ev_loop *loop = w->other;
1817	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2380	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1818	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2381	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1819	}	2382	}
1820		2383
1821	ev_set_priority (&w->io, ev_priority (w));	2384	ev_set_priority (&w->io, ev_priority (w));
1822	ev_io_start (EV_A_ &w->io);	2385	ev_io_start (EV_A_ &w->io);
1823		2386
		2387	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2388	ev_set_priority (&w->prepare, EV_MINPRI);
		2389	ev_prepare_start (EV_A_ &w->prepare);
		2390
		2391	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2392
1824	ev_start (EV_A_ (W)w, 1);	2393	ev_start (EV_A_ (W)w, 1);
1825	}	2394	}
1826		2395
1827	void	2396	void
1828	ev_embed_stop (EV_P_ ev_embed *w)	2397	ev_embed_stop (EV_P_ ev_embed *w)
1829	{	2398	{
1830	ev_clear_pending (EV_A_ (W)w);	2399	clear_pending (EV_A_ (W)w);
1831	if (expect_false (!ev_is_active (w)))	2400	if (expect_false (!ev_is_active (w)))
1832	return;	2401	return;
1833		2402
1834	ev_io_stop (EV_A_ &w->io);	2403	ev_io_stop (EV_A_ &w->io);
		2404	ev_prepare_stop (EV_A_ &w->prepare);
1835		2405
1836	ev_stop (EV_A_ (W)w);	2406	ev_stop (EV_A_ (W)w);
1837	}	2407	}
1838	#endif	2408	#endif
1839		2409
…		…
1850	}	2420	}
1851		2421
1852	void	2422	void
1853	ev_fork_stop (EV_P_ ev_fork *w)	2423	ev_fork_stop (EV_P_ ev_fork *w)
1854	{	2424	{
1855	ev_clear_pending (EV_A_ (W)w);	2425	clear_pending (EV_A_ (W)w);
1856	if (expect_false (!ev_is_active (w)))	2426	if (expect_false (!ev_is_active (w)))
1857	return;	2427	return;
1858		2428
1859	{	2429	{
1860	int active = ((W)w)->active;	2430	int active = ((W)w)->active;
…		…
1864		2434
1865	ev_stop (EV_A_ (W)w);	2435	ev_stop (EV_A_ (W)w);
1866	}	2436	}
1867	#endif	2437	#endif
1868		2438
		2439	#if EV_ASYNC_ENABLE
		2440	void
		2441	ev_async_start (EV_P_ ev_async *w)
		2442	{
		2443	if (expect_false (ev_is_active (w)))
		2444	return;
		2445
		2446	evpipe_init (EV_A);
		2447
		2448	ev_start (EV_A_ (W)w, ++asynccnt);
		2449	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2450	asyncs [asynccnt - 1] = w;
		2451	}
		2452
		2453	void
		2454	ev_async_stop (EV_P_ ev_async *w)
		2455	{
		2456	clear_pending (EV_A_ (W)w);
		2457	if (expect_false (!ev_is_active (w)))
		2458	return;
		2459
		2460	{
		2461	int active = ((W)w)->active;
		2462	asyncs [active - 1] = asyncs [--asynccnt];
		2463	((W)asyncs [active - 1])->active = active;
		2464	}
		2465
		2466	ev_stop (EV_A_ (W)w);
		2467	}
		2468
		2469	void
		2470	ev_async_send (EV_P_ ev_async *w)
		2471	{
		2472	w->sent = 1;
		2473	evpipe_write (EV_A_ 0, 1);
		2474	}
		2475	#endif
		2476
1869	/*****************************************************************************/	2477	/*****************************************************************************/
1870		2478
1871	struct ev_once	2479	struct ev_once
1872	{	2480	{
1873	ev_io io;	2481	ev_io io;
…		…
1928	ev_timer_set (&once->to, timeout, 0.);	2536	ev_timer_set (&once->to, timeout, 0.);
1929	ev_timer_start (EV_A_ &once->to);	2537	ev_timer_start (EV_A_ &once->to);
1930	}	2538	}
1931	}	2539	}
1932		2540
		2541	#if EV_MULTIPLICITY
		2542	#include "ev_wrap.h"
		2543	#endif
		2544
1933	#ifdef __cplusplus	2545	#ifdef __cplusplus
1934	}	2546	}
1935	#endif	2547	#endif
1936		2548

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Comparing libev/ev.c (file contents): Revision 1.147 by root, Tue Nov 27 10:59:11 2007 UTC vs. Revision 1.212 by root, Tue Feb 19 19:01:13 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.147 by root, Tue Nov 27 10:59:11 2007 UTC vs.
Revision 1.212 by root, Tue Feb 19 19:01:13 2008 UTC