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

Comparing libev/ev.c (file contents):
Revision 1.146 by root, Tue Nov 27 09:17:51 2007 UTC vs.
Revision 1.218 by root, Sun Mar 23 00:05:03 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 ((unsigned long)(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_ EV_ATOMIC_T *flag)
		821	{
		822	if (!*flag)
		823	{
		824	int old_errno = errno; /* save errno because write might clobber it */
		825
		826	*flag = 1;
		827	write (evpipe [1], &old_errno, 1);
		828
		829	errno = old_errno;
		830	}
		831	}
		832
		833	static void
		834	pipecb (EV_P_ ev_io *iow, int revents)
		835	{
		836	{
		837	int dummy;
		838	read (evpipe [0], &dummy, 1);
		839	}
		840
		841	if (gotsig && ev_is_default_loop (EV_A))
		842	{
		843	int signum;
		844	gotsig = 0;
		845
		846	for (signum = signalmax; signum--; )
		847	if (signals [signum].gotsig)
		848	ev_feed_signal_event (EV_A_ signum + 1);
		849	}
		850
		851	#if EV_ASYNC_ENABLE
		852	if (gotasync)
		853	{
		854	int i;
		855	gotasync = 0;
		856
		857	for (i = asynccnt; i--; )
		858	if (asyncs [i]->sent)
		859	{
		860	asyncs [i]->sent = 0;
		861	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		862	}
		863	}
		864	#endif
710	}	865	}
711		866
712	/*****************************************************************************/	867	/*****************************************************************************/
713		868
		869	static void
		870	ev_sighandler (int signum)
		871	{
		872	#if EV_MULTIPLICITY
		873	struct ev_loop *loop = &default_loop_struct;
		874	#endif
		875
		876	#if _WIN32
		877	signal (signum, ev_sighandler);
		878	#endif
		879
		880	signals [signum - 1].gotsig = 1;
		881	evpipe_write (EV_A_ &gotsig);
		882	}
		883
		884	void noinline
		885	ev_feed_signal_event (EV_P_ int signum)
		886	{
		887	WL w;
		888
		889	#if EV_MULTIPLICITY
		890	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		891	#endif
		892
		893	--signum;
		894
		895	if (signum < 0 \|\| signum >= signalmax)
		896	return;
		897
		898	signals [signum].gotsig = 0;
		899
		900	for (w = signals [signum].head; w; w = w->next)
		901	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		902	}
		903
		904	/*****************************************************************************/
		905
714	static ev_child *childs [PID_HASHSIZE];	906	static WL childs [EV_PID_HASHSIZE];
715		907
716	#ifndef _WIN32	908	#ifndef _WIN32
717		909
718	static ev_signal childev;	910	static ev_signal childev;
719		911
		912	#ifndef WIFCONTINUED
		913	# define WIFCONTINUED(status) 0
		914	#endif
		915
720	void inline_speed	916	void inline_speed
721	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	917	child_reap (EV_P_ int chain, int pid, int status)
722	{	918	{
723	ev_child *w;	919	ev_child *w;
		920	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
724		921
725	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	922	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		923	{
726	if (w->pid == pid \|\| !w->pid)	924	if ((w->pid == pid \|\| !w->pid)
		925	&& (!traced \|\| (w->flags & 1)))
727	{	926	{
728	ev_priority (w) = ev_priority (sw); /* need to do it now */	927	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
729	w->rpid = pid;	928	w->rpid = pid;
730	w->rstatus = status;	929	w->rstatus = status;
731	ev_feed_event (EV_A_ (W)w, EV_CHILD);	930	ev_feed_event (EV_A_ (W)w, EV_CHILD);
732	}	931	}
		932	}
733	}	933	}
734		934
735	#ifndef WCONTINUED	935	#ifndef WCONTINUED
736	# define WCONTINUED 0	936	# define WCONTINUED 0
737	#endif	937	#endif
…		…
746	if (!WCONTINUED	946	if (!WCONTINUED
747	\|\| errno != EINVAL	947	\|\| errno != EINVAL
748	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	948	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
749	return;	949	return;
750		950
751	/* make sure we are called again until all childs have been reaped */	951	/* make sure we are called again until all children have been reaped */
752	/* we need to do it this way so that the callback gets called before we continue */	952	/* 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);	953	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754		954
755	child_reap (EV_A_ sw, pid, pid, status);	955	child_reap (EV_A_ pid, pid, status);
		956	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 */	957	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757	}	958	}
758		959
759	#endif	960	#endif
760		961
761	/*****************************************************************************/	962	/*****************************************************************************/
…		…
833	}	1034	}
834		1035
835	unsigned int	1036	unsigned int
836	ev_embeddable_backends (void)	1037	ev_embeddable_backends (void)
837	{	1038	{
838	return EVBACKEND_EPOLL	1039	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
839	\| EVBACKEND_KQUEUE	1040
840	\| EVBACKEND_PORT;	1041	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1042	/* please fix it and tell me how to detect the fix */
		1043	flags &= ~EVBACKEND_EPOLL;
		1044
		1045	return flags;
841	}	1046	}
842		1047
843	unsigned int	1048	unsigned int
844	ev_backend (EV_P)	1049	ev_backend (EV_P)
845	{	1050	{
846	return backend;	1051	return backend;
847	}	1052	}
848		1053
849	static void	1054	unsigned int
		1055	ev_loop_count (EV_P)
		1056	{
		1057	return loop_count;
		1058	}
		1059
		1060	void
		1061	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1062	{
		1063	io_blocktime = interval;
		1064	}
		1065
		1066	void
		1067	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1068	{
		1069	timeout_blocktime = interval;
		1070	}
		1071
		1072	static void noinline
850	loop_init (EV_P_ unsigned int flags)	1073	loop_init (EV_P_ unsigned int flags)
851	{	1074	{
852	if (!backend)	1075	if (!backend)
853	{	1076	{
854	#if EV_USE_MONOTONIC	1077	#if EV_USE_MONOTONIC
…		…
857	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1080	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
858	have_monotonic = 1;	1081	have_monotonic = 1;
859	}	1082	}
860	#endif	1083	#endif
861		1084
862	ev_rt_now = ev_time ();	1085	ev_rt_now = ev_time ();
863	mn_now = get_clock ();	1086	mn_now = get_clock ();
864	now_floor = mn_now;	1087	now_floor = mn_now;
865	rtmn_diff = ev_rt_now - mn_now;	1088	rtmn_diff = ev_rt_now - mn_now;
		1089
		1090	io_blocktime = 0.;
		1091	timeout_blocktime = 0.;
		1092	backend = 0;
		1093	backend_fd = -1;
		1094	gotasync = 0;
		1095	#if EV_USE_INOTIFY
		1096	fs_fd = -2;
		1097	#endif
		1098
		1099	/* pid check not overridable via env */
		1100	#ifndef _WIN32
		1101	if (flags & EVFLAG_FORKCHECK)
		1102	curpid = getpid ();
		1103	#endif
866		1104
867	if (!(flags & EVFLAG_NOENV)	1105	if (!(flags & EVFLAG_NOENV)
868	&& !enable_secure ()	1106	&& !enable_secure ()
869	&& getenv ("LIBEV_FLAGS"))	1107	&& getenv ("LIBEV_FLAGS"))
870	flags = atoi (getenv ("LIBEV_FLAGS"));	1108	flags = atoi (getenv ("LIBEV_FLAGS"));
871		1109
872	if (!(flags & 0x0000ffffUL))	1110	if (!(flags & 0x0000ffffUL))
873	flags \|= ev_recommended_backends ();	1111	flags \|= ev_recommended_backends ();
874		1112
875	backend = 0;
876	#if EV_USE_PORT	1113	#if EV_USE_PORT
877	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1114	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878	#endif	1115	#endif
879	#if EV_USE_KQUEUE	1116	#if EV_USE_KQUEUE
880	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1117	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
887	#endif	1124	#endif
888	#if EV_USE_SELECT	1125	#if EV_USE_SELECT
889	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1126	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
890	#endif	1127	#endif
891		1128
892	ev_init (&sigev, sigcb);	1129	ev_init (&pipeev, pipecb);
893	ev_set_priority (&sigev, EV_MAXPRI);	1130	ev_set_priority (&pipeev, EV_MAXPRI);
894	}	1131	}
895	}	1132	}
896		1133
897	static void	1134	static void noinline
898	loop_destroy (EV_P)	1135	loop_destroy (EV_P)
899	{	1136	{
900	int i;	1137	int i;
		1138
		1139	if (ev_is_active (&pipeev))
		1140	{
		1141	ev_ref (EV_A); /* signal watcher */
		1142	ev_io_stop (EV_A_ &pipeev);
		1143
		1144	close (evpipe [0]); evpipe [0] = 0;
		1145	close (evpipe [1]); evpipe [1] = 0;
		1146	}
		1147
		1148	#if EV_USE_INOTIFY
		1149	if (fs_fd >= 0)
		1150	close (fs_fd);
		1151	#endif
		1152
		1153	if (backend_fd >= 0)
		1154	close (backend_fd);
901		1155
902	#if EV_USE_PORT	1156	#if EV_USE_PORT
903	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1157	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904	#endif	1158	#endif
905	#if EV_USE_KQUEUE	1159	#if EV_USE_KQUEUE
…		…
914	#if EV_USE_SELECT	1168	#if EV_USE_SELECT
915	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1169	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
916	#endif	1170	#endif
917		1171
918	for (i = NUMPRI; i--; )	1172	for (i = NUMPRI; i--; )
		1173	{
919	array_free (pending, [i]);	1174	array_free (pending, [i]);
		1175	#if EV_IDLE_ENABLE
		1176	array_free (idle, [i]);
		1177	#endif
		1178	}
		1179
		1180	ev_free (anfds); anfdmax = 0;
920		1181
921	/* have to use the microsoft-never-gets-it-right macro */	1182	/* have to use the microsoft-never-gets-it-right macro */
922	array_free (fdchange, EMPTY0);	1183	array_free (fdchange, EMPTY);
923	array_free (timer, EMPTY0);	1184	array_free (timer, EMPTY);
924	#if EV_PERIODIC_ENABLE	1185	#if EV_PERIODIC_ENABLE
925	array_free (periodic, EMPTY0);	1186	array_free (periodic, EMPTY);
926	#endif	1187	#endif
		1188	#if EV_FORK_ENABLE
927	array_free (idle, EMPTY0);	1189	array_free (fork, EMPTY);
		1190	#endif
928	array_free (prepare, EMPTY0);	1191	array_free (prepare, EMPTY);
929	array_free (check, EMPTY0);	1192	array_free (check, EMPTY);
		1193	#if EV_ASYNC_ENABLE
		1194	array_free (async, EMPTY);
		1195	#endif
930		1196
931	backend = 0;	1197	backend = 0;
932	}	1198	}
933		1199
934	static void	1200	void inline_size infy_fork (EV_P);
		1201
		1202	void inline_size
935	loop_fork (EV_P)	1203	loop_fork (EV_P)
936	{	1204	{
937	#if EV_USE_PORT	1205	#if EV_USE_PORT
938	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1206	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939	#endif	1207	#endif
…		…
941	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1209	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942	#endif	1210	#endif
943	#if EV_USE_EPOLL	1211	#if EV_USE_EPOLL
944	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1212	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
945	#endif	1213	#endif
		1214	#if EV_USE_INOTIFY
		1215	infy_fork (EV_A);
		1216	#endif
946		1217
947	if (ev_is_active (&sigev))	1218	if (ev_is_active (&pipeev))
948	{	1219	{
949	/* default loop */	1220	/* this "locks" the handlers against writing to the pipe */
		1221	/* while we modify the fd vars */
		1222	gotsig = 1;
		1223	#if EV_ASYNC_ENABLE
		1224	gotasync = 1;
		1225	#endif
950		1226
951	ev_ref (EV_A);	1227	ev_ref (EV_A);
952	ev_io_stop (EV_A_ &sigev);	1228	ev_io_stop (EV_A_ &pipeev);
953	close (sigpipe [0]);	1229	close (evpipe [0]);
954	close (sigpipe [1]);	1230	close (evpipe [1]);
955		1231
956	while (pipe (sigpipe))
957	syserr ("(libev) error creating pipe");
958
959	siginit (EV_A);	1232	evpipe_init (EV_A);
		1233	/* now iterate over everything, in case we missed something */
		1234	pipecb (EV_A_ &pipeev, EV_READ);
960	}	1235	}
961		1236
962	postfork = 0;	1237	postfork = 0;
963	}	1238	}
964		1239
…		…
986	}	1261	}
987		1262
988	void	1263	void
989	ev_loop_fork (EV_P)	1264	ev_loop_fork (EV_P)
990	{	1265	{
991	postfork = 1;	1266	postfork = 1; /* must be in line with ev_default_fork */
992	}	1267	}
993		1268
994	#endif	1269	#endif
995		1270
996	#if EV_MULTIPLICITY	1271	#if EV_MULTIPLICITY
…		…
999	#else	1274	#else
1000	int	1275	int
1001	ev_default_loop (unsigned int flags)	1276	ev_default_loop (unsigned int flags)
1002	#endif	1277	#endif
1003	{	1278	{
1004	if (sigpipe [0] == sigpipe [1])
1005	if (pipe (sigpipe))
1006	return 0;
1007
1008	if (!ev_default_loop_ptr)	1279	if (!ev_default_loop_ptr)
1009	{	1280	{
1010	#if EV_MULTIPLICITY	1281	#if EV_MULTIPLICITY
1011	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1282	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1012	#else	1283	#else
…		…
1015		1286
1016	loop_init (EV_A_ flags);	1287	loop_init (EV_A_ flags);
1017		1288
1018	if (ev_backend (EV_A))	1289	if (ev_backend (EV_A))
1019	{	1290	{
1020	siginit (EV_A);
1021
1022	#ifndef _WIN32	1291	#ifndef _WIN32
1023	ev_signal_init (&childev, childcb, SIGCHLD);	1292	ev_signal_init (&childev, childcb, SIGCHLD);
1024	ev_set_priority (&childev, EV_MAXPRI);	1293	ev_set_priority (&childev, EV_MAXPRI);
1025	ev_signal_start (EV_A_ &childev);	1294	ev_signal_start (EV_A_ &childev);
1026	ev_unref (EV_A); /* child watcher should not keep loop alive */	1295	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1043	#ifndef _WIN32	1312	#ifndef _WIN32
1044	ev_ref (EV_A); /* child watcher */	1313	ev_ref (EV_A); /* child watcher */
1045	ev_signal_stop (EV_A_ &childev);	1314	ev_signal_stop (EV_A_ &childev);
1046	#endif	1315	#endif
1047		1316
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);	1317	loop_destroy (EV_A);
1055	}	1318	}
1056		1319
1057	void	1320	void
1058	ev_default_fork (void)	1321	ev_default_fork (void)
…		…
1060	#if EV_MULTIPLICITY	1323	#if EV_MULTIPLICITY
1061	struct ev_loop *loop = ev_default_loop_ptr;	1324	struct ev_loop *loop = ev_default_loop_ptr;
1062	#endif	1325	#endif
1063		1326
1064	if (backend)	1327	if (backend)
1065	postfork = 1;	1328	postfork = 1; /* must be in line with ev_loop_fork */
1066	}	1329	}
1067		1330
1068	/*****************************************************************************/	1331	/*****************************************************************************/
1069		1332
1070	int inline_size	1333	void
1071	any_pending (EV_P)	1334	ev_invoke (EV_P_ void *w, int revents)
1072	{	1335	{
1073	int pri;	1336	EV_CB_INVOKE ((W)w, revents);
1074
1075	for (pri = NUMPRI; pri--; )
1076	if (pendingcnt [pri])
1077	return 1;
1078
1079	return 0;
1080	}	1337	}
1081		1338
1082	void inline_speed	1339	void inline_speed
1083	call_pending (EV_P)	1340	call_pending (EV_P)
1084	{	1341	{
…		…
1089	{	1346	{
1090	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1347	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091		1348
1092	if (expect_true (p->w))	1349	if (expect_true (p->w))
1093	{	1350	{
1094	assert (("non-pending watcher on pending list", p->w->pending));	1351	/assert (("non-pending watcher on pending list", p->w->pending));/
1095		1352
1096	p->w->pending = 0;	1353	p->w->pending = 0;
1097	EV_CB_INVOKE (p->w, p->events);	1354	EV_CB_INVOKE (p->w, p->events);
1098	}	1355	}
1099	}	1356	}
…		…
1102	void inline_size	1359	void inline_size
1103	timers_reify (EV_P)	1360	timers_reify (EV_P)
1104	{	1361	{
1105	while (timercnt && ((WT)timers [0])->at <= mn_now)	1362	while (timercnt && ((WT)timers [0])->at <= mn_now)
1106	{	1363	{
1107	ev_timer *w = timers [0];	1364	ev_timer w = (ev_timer )timers [0];
1108		1365
1109	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1366	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1110		1367
1111	/* first reschedule or stop timer */	1368	/* first reschedule or stop timer */
1112	if (w->repeat)	1369	if (w->repeat)
1113	{	1370	{
1114	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1371	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1115		1372
1116	((WT)w)->at += w->repeat;	1373	((WT)w)->at += w->repeat;
1117	if (((WT)w)->at < mn_now)	1374	if (((WT)w)->at < mn_now)
1118	((WT)w)->at = mn_now;	1375	((WT)w)->at = mn_now;
1119		1376
1120	downheap ((WT *)timers, timercnt, 0);	1377	downheap (timers, timercnt, 0);
1121	}	1378	}
1122	else	1379	else
1123	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1380	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1124		1381
1125	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1382	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1130	void inline_size	1387	void inline_size
1131	periodics_reify (EV_P)	1388	periodics_reify (EV_P)
1132	{	1389	{
1133	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1390	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134	{	1391	{
1135	ev_periodic *w = periodics [0];	1392	ev_periodic w = (ev_periodic )periodics [0];
1136		1393
1137	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1394	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1138		1395
1139	/* first reschedule or stop timer */	1396	/* first reschedule or stop timer */
1140	if (w->reschedule_cb)	1397	if (w->reschedule_cb)
1141	{	1398	{
1142	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1399	((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));	1400	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1144	downheap ((WT *)periodics, periodiccnt, 0);	1401	downheap (periodics, periodiccnt, 0);
1145	}	1402	}
1146	else if (w->interval)	1403	else if (w->interval)
1147	{	1404	{
1148	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1405	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1406	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));	1407	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);	1408	downheap (periodics, periodiccnt, 0);
1151	}	1409	}
1152	else	1410	else
1153	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1411	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1154		1412
1155	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1413	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1162	int i;	1420	int i;
1163		1421
1164	/* adjust periodics after time jump */	1422	/* adjust periodics after time jump */
1165	for (i = 0; i < periodiccnt; ++i)	1423	for (i = 0; i < periodiccnt; ++i)
1166	{	1424	{
1167	ev_periodic *w = periodics [i];	1425	ev_periodic w = (ev_periodic )periodics [i];
1168		1426
1169	if (w->reschedule_cb)	1427	if (w->reschedule_cb)
1170	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1428	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1171	else if (w->interval)	1429	else if (w->interval)
1172	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1430	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1173	}	1431	}
1174		1432
1175	/* now rebuild the heap */	1433	/* now rebuild the heap */
1176	for (i = periodiccnt >> 1; i--; )	1434	for (i = periodiccnt >> 1; i--; )
1177	downheap ((WT *)periodics, periodiccnt, i);	1435	downheap (periodics, periodiccnt, i);
1178	}	1436	}
1179	#endif	1437	#endif
1180		1438
		1439	#if EV_IDLE_ENABLE
1181	int inline_size	1440	void inline_size
1182	time_update_monotonic (EV_P)	1441	idle_reify (EV_P)
1183	{	1442	{
		1443	if (expect_false (idleall))
		1444	{
		1445	int pri;
		1446
		1447	for (pri = NUMPRI; pri--; )
		1448	{
		1449	if (pendingcnt [pri])
		1450	break;
		1451
		1452	if (idlecnt [pri])
		1453	{
		1454	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1455	break;
		1456	}
		1457	}
		1458	}
		1459	}
		1460	#endif
		1461
		1462	void inline_speed
		1463	time_update (EV_P_ ev_tstamp max_block)
		1464	{
		1465	int i;
		1466
		1467	#if EV_USE_MONOTONIC
		1468	if (expect_true (have_monotonic))
		1469	{
		1470	ev_tstamp odiff = rtmn_diff;
		1471
1184	mn_now = get_clock ();	1472	mn_now = get_clock ();
1185		1473
		1474	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1475	/* interpolate in the meantime */
1186	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1476	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1187	{	1477	{
1188	ev_rt_now = rtmn_diff + mn_now;	1478	ev_rt_now = rtmn_diff + mn_now;
1189	return 0;	1479	return;
1190	}	1480	}
1191	else	1481
1192	{
1193	now_floor = mn_now;	1482	now_floor = mn_now;
1194	ev_rt_now = ev_time ();	1483	ev_rt_now = ev_time ();
1195	return 1;
1196	}
1197	}
1198		1484
1199	void inline_size	1485	/* loop a few times, before making important decisions.
1200	time_update (EV_P)	1486	* on the choice of "4": one iteration isn't enough,
1201	{	1487	* in case we get preempted during the calls to
1202	int i;	1488	* ev_time and get_clock. a second call is almost guaranteed
1203		1489	* to succeed in that case, though. and looping a few more times
1204	#if EV_USE_MONOTONIC	1490	* doesn't hurt either as we only do this on time-jumps or
1205	if (expect_true (have_monotonic))	1491	* in the unlikely event of having been preempted here.
1206	{	1492	*/
1207	if (time_update_monotonic (EV_A))	1493	for (i = 4; --i; )
1208	{	1494	{
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;	1495	rtmn_diff = ev_rt_now - mn_now;
1222		1496
1223	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1497	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1224	return; /* all is well */	1498	return; /* all is well */
1225		1499
1226	ev_rt_now = ev_time ();	1500	ev_rt_now = ev_time ();
1227	mn_now = get_clock ();	1501	mn_now = get_clock ();
1228	now_floor = mn_now;	1502	now_floor = mn_now;
1229	}	1503	}
1230		1504
1231	# if EV_PERIODIC_ENABLE	1505	# if EV_PERIODIC_ENABLE
1232	periodics_reschedule (EV_A);	1506	periodics_reschedule (EV_A);
1233	# endif	1507	# endif
1234	/* no timer adjustment, as the monotonic clock doesn't jump */	1508	/* no timer adjustment, as the monotonic clock doesn't jump */
1235	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1509	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1236	}
1237	}	1510	}
1238	else	1511	else
1239	#endif	1512	#endif
1240	{	1513	{
1241	ev_rt_now = ev_time ();	1514	ev_rt_now = ev_time ();
1242		1515
1243	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1516	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1244	{	1517	{
1245	#if EV_PERIODIC_ENABLE	1518	#if EV_PERIODIC_ENABLE
1246	periodics_reschedule (EV_A);	1519	periodics_reschedule (EV_A);
1247	#endif	1520	#endif
1248
1249	/* adjust timers. this is easy, as the offset is the same for all */	1521	/* adjust timers. this is easy, as the offset is the same for all of them */
1250	for (i = 0; i < timercnt; ++i)	1522	for (i = 0; i < timercnt; ++i)
1251	((WT)timers [i])->at += ev_rt_now - mn_now;	1523	((WT)timers [i])->at += ev_rt_now - mn_now;
1252	}	1524	}
1253		1525
1254	mn_now = ev_rt_now;	1526	mn_now = ev_rt_now;
…		…
1274	{	1546	{
1275	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1547	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
1276	? EVUNLOOP_ONE	1548	? EVUNLOOP_ONE
1277	: EVUNLOOP_CANCEL;	1549	: EVUNLOOP_CANCEL;
1278		1550
1279	while (activecnt)	1551	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1552
		1553	do
1280	{	1554	{
		1555	#ifndef _WIN32
		1556	if (expect_false (curpid)) /* penalise the forking check even more */
		1557	if (expect_false (getpid () != curpid))
		1558	{
		1559	curpid = getpid ();
		1560	postfork = 1;
		1561	}
		1562	#endif
		1563
		1564	#if EV_FORK_ENABLE
		1565	/* we might have forked, so queue fork handlers */
		1566	if (expect_false (postfork))
		1567	if (forkcnt)
		1568	{
		1569	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1570	call_pending (EV_A);
		1571	}
		1572	#endif
		1573
1281	/* queue check watchers (and execute them) */	1574	/* queue prepare watchers (and execute them) */
1282	if (expect_false (preparecnt))	1575	if (expect_false (preparecnt))
1283	{	1576	{
1284	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1577	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1285	call_pending (EV_A);	1578	call_pending (EV_A);
1286	}	1579	}
1287		1580
		1581	if (expect_false (!activecnt))
		1582	break;
		1583
1288	/* we might have forked, so reify kernel state if necessary */	1584	/* we might have forked, so reify kernel state if necessary */
1289	if (expect_false (postfork))	1585	if (expect_false (postfork))
1290	loop_fork (EV_A);	1586	loop_fork (EV_A);
1291		1587
1292	/* update fd-related kernel structures */	1588	/* update fd-related kernel structures */
1293	fd_reify (EV_A);	1589	fd_reify (EV_A);
1294		1590
1295	/* calculate blocking time */	1591	/* calculate blocking time */
1296	{	1592	{
1297	double block;	1593	ev_tstamp waittime = 0.;
		1594	ev_tstamp sleeptime = 0.;
1298		1595
1299	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1596	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1300	block = 0.; /* do not block at all */
1301	else
1302	{	1597	{
1303	/* update time to cancel out callback processing overhead */	1598	/* update time to cancel out callback processing overhead */
1304	#if EV_USE_MONOTONIC
1305	if (expect_true (have_monotonic))
1306	time_update_monotonic (EV_A);	1599	time_update (EV_A_ 1e100);
1307	else
1308	#endif
1309	{
1310	ev_rt_now = ev_time ();
1311	mn_now = ev_rt_now;
1312	}
1313		1600
1314	block = MAX_BLOCKTIME;	1601	waittime = MAX_BLOCKTIME;
1315		1602
1316	if (timercnt)	1603	if (timercnt)
1317	{	1604	{
1318	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1605	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1319	if (block > to) block = to;	1606	if (waittime > to) waittime = to;
1320	}	1607	}
1321		1608
1322	#if EV_PERIODIC_ENABLE	1609	#if EV_PERIODIC_ENABLE
1323	if (periodiccnt)	1610	if (periodiccnt)
1324	{	1611	{
1325	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1612	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1326	if (block > to) block = to;	1613	if (waittime > to) waittime = to;
1327	}	1614	}
1328	#endif	1615	#endif
1329		1616
1330	if (expect_false (block < 0.)) block = 0.;	1617	if (expect_false (waittime < timeout_blocktime))
		1618	waittime = timeout_blocktime;
		1619
		1620	sleeptime = waittime - backend_fudge;
		1621
		1622	if (expect_true (sleeptime > io_blocktime))
		1623	sleeptime = io_blocktime;
		1624
		1625	if (sleeptime)
		1626	{
		1627	ev_sleep (sleeptime);
		1628	waittime -= sleeptime;
		1629	}
1331	}	1630	}
1332		1631
		1632	++loop_count;
1333	backend_poll (EV_A_ block);	1633	backend_poll (EV_A_ waittime);
		1634
		1635	/* update ev_rt_now, do magic */
		1636	time_update (EV_A_ waittime + sleeptime);
1334	}	1637	}
1335
1336	/* update ev_rt_now, do magic */
1337	time_update (EV_A);
1338		1638
1339	/* queue pending timers and reschedule them */	1639	/* queue pending timers and reschedule them */
1340	timers_reify (EV_A); /* relative timers called last */	1640	timers_reify (EV_A); /* relative timers called last */
1341	#if EV_PERIODIC_ENABLE	1641	#if EV_PERIODIC_ENABLE
1342	periodics_reify (EV_A); /* absolute timers called first */	1642	periodics_reify (EV_A); /* absolute timers called first */
1343	#endif	1643	#endif
1344		1644
		1645	#if EV_IDLE_ENABLE
1345	/* queue idle watchers unless other events are pending */	1646	/* queue idle watchers unless other events are pending */
1346	if (idlecnt && !any_pending (EV_A))	1647	idle_reify (EV_A);
1347	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1648	#endif
1348		1649
1349	/* queue check watchers, to be executed first */	1650	/* queue check watchers, to be executed first */
1350	if (expect_false (checkcnt))	1651	if (expect_false (checkcnt))
1351	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1652	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1352		1653
1353	call_pending (EV_A);	1654	call_pending (EV_A);
1354		1655
1355	if (expect_false (loop_done))
1356	break;
1357	}	1656	}
		1657	while (expect_true (activecnt && !loop_done));
1358		1658
1359	if (loop_done == EVUNLOOP_ONE)	1659	if (loop_done == EVUNLOOP_ONE)
1360	loop_done = EVUNLOOP_CANCEL;	1660	loop_done = EVUNLOOP_CANCEL;
1361	}	1661	}
1362		1662
…		…
1389	head = &(*head)->next;	1689	head = &(*head)->next;
1390	}	1690	}
1391	}	1691	}
1392		1692
1393	void inline_speed	1693	void inline_speed
1394	ev_clear_pending (EV_P_ W w)	1694	clear_pending (EV_P_ W w)
1395	{	1695	{
1396	if (w->pending)	1696	if (w->pending)
1397	{	1697	{
1398	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1698	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1399	w->pending = 0;	1699	w->pending = 0;
1400	}	1700	}
1401	}	1701	}
1402		1702
		1703	int
		1704	ev_clear_pending (EV_P_ void *w)
		1705	{
		1706	W w_ = (W)w;
		1707	int pending = w_->pending;
		1708
		1709	if (expect_true (pending))
		1710	{
		1711	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1712	w_->pending = 0;
		1713	p->w = 0;
		1714	return p->events;
		1715	}
		1716	else
		1717	return 0;
		1718	}
		1719
		1720	void inline_size
		1721	pri_adjust (EV_P_ W w)
		1722	{
		1723	int pri = w->priority;
		1724	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1725	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1726	w->priority = pri;
		1727	}
		1728
1403	void inline_speed	1729	void inline_speed
1404	ev_start (EV_P_ W w, int active)	1730	ev_start (EV_P_ W w, int active)
1405	{	1731	{
1406	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1732	pri_adjust (EV_A_ w);
1407	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1408
1409	w->active = active;	1733	w->active = active;
1410	ev_ref (EV_A);	1734	ev_ref (EV_A);
1411	}	1735	}
1412		1736
1413	void inline_size	1737	void inline_size
…		…
1417	w->active = 0;	1741	w->active = 0;
1418	}	1742	}
1419		1743
1420	/*****************************************************************************/	1744	/*****************************************************************************/
1421		1745
1422	void	1746	void noinline
1423	ev_io_start (EV_P_ ev_io *w)	1747	ev_io_start (EV_P_ ev_io *w)
1424	{	1748	{
1425	int fd = w->fd;	1749	int fd = w->fd;
1426		1750
1427	if (expect_false (ev_is_active (w)))	1751	if (expect_false (ev_is_active (w)))
…		…
1429		1753
1430	assert (("ev_io_start called with negative fd", fd >= 0));	1754	assert (("ev_io_start called with negative fd", fd >= 0));
1431		1755
1432	ev_start (EV_A_ (W)w, 1);	1756	ev_start (EV_A_ (W)w, 1);
1433	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1757	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1434	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1758	wlist_add (&anfds[fd].head, (WL)w);
1435		1759
1436	fd_change (EV_A_ fd);	1760	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1761	w->events &= ~EV_IOFDSET;
1437	}	1762	}
1438		1763
1439	void	1764	void noinline
1440	ev_io_stop (EV_P_ ev_io *w)	1765	ev_io_stop (EV_P_ ev_io *w)
1441	{	1766	{
1442	ev_clear_pending (EV_A_ (W)w);	1767	clear_pending (EV_A_ (W)w);
1443	if (expect_false (!ev_is_active (w)))	1768	if (expect_false (!ev_is_active (w)))
1444	return;	1769	return;
1445		1770
1446	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1771	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1447		1772
1448	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1773	wlist_del (&anfds[w->fd].head, (WL)w);
1449	ev_stop (EV_A_ (W)w);	1774	ev_stop (EV_A_ (W)w);
1450		1775
1451	fd_change (EV_A_ w->fd);	1776	fd_change (EV_A_ w->fd, 1);
1452	}	1777	}
1453		1778
1454	void	1779	void noinline
1455	ev_timer_start (EV_P_ ev_timer *w)	1780	ev_timer_start (EV_P_ ev_timer *w)
1456	{	1781	{
1457	if (expect_false (ev_is_active (w)))	1782	if (expect_false (ev_is_active (w)))
1458	return;	1783	return;
1459		1784
1460	((WT)w)->at += mn_now;	1785	((WT)w)->at += mn_now;
1461		1786
1462	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1787	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1463		1788
1464	ev_start (EV_A_ (W)w, ++timercnt);	1789	ev_start (EV_A_ (W)w, ++timercnt);
1465	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1790	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1466	timers [timercnt - 1] = w;	1791	timers [timercnt - 1] = (WT)w;
1467	upheap ((WT *)timers, timercnt - 1);	1792	upheap (timers, timercnt - 1);
1468		1793
1469	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1794	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1470	}	1795	}
1471		1796
1472	void	1797	void noinline
1473	ev_timer_stop (EV_P_ ev_timer *w)	1798	ev_timer_stop (EV_P_ ev_timer *w)
1474	{	1799	{
1475	ev_clear_pending (EV_A_ (W)w);	1800	clear_pending (EV_A_ (W)w);
1476	if (expect_false (!ev_is_active (w)))	1801	if (expect_false (!ev_is_active (w)))
1477	return;	1802	return;
1478		1803
1479	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1804	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1480		1805
		1806	{
		1807	int active = ((W)w)->active;
		1808
1481	if (expect_true (((W)w)->active < timercnt--))	1809	if (expect_true (--active < --timercnt))
1482	{	1810	{
1483	timers [((W)w)->active - 1] = timers [timercnt];	1811	timers [active] = timers [timercnt];
1484	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1812	adjustheap (timers, timercnt, active);
1485	}	1813	}
		1814	}
1486		1815
1487	((WT)w)->at -= mn_now;	1816	((WT)w)->at -= mn_now;
1488		1817
1489	ev_stop (EV_A_ (W)w);	1818	ev_stop (EV_A_ (W)w);
1490	}	1819	}
1491		1820
1492	void	1821	void noinline
1493	ev_timer_again (EV_P_ ev_timer *w)	1822	ev_timer_again (EV_P_ ev_timer *w)
1494	{	1823	{
1495	if (ev_is_active (w))	1824	if (ev_is_active (w))
1496	{	1825	{
1497	if (w->repeat)	1826	if (w->repeat)
1498	{	1827	{
1499	((WT)w)->at = mn_now + w->repeat;	1828	((WT)w)->at = mn_now + w->repeat;
1500	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1829	adjustheap (timers, timercnt, ((W)w)->active - 1);
1501	}	1830	}
1502	else	1831	else
1503	ev_timer_stop (EV_A_ w);	1832	ev_timer_stop (EV_A_ w);
1504	}	1833	}
1505	else if (w->repeat)	1834	else if (w->repeat)
…		…
1508	ev_timer_start (EV_A_ w);	1837	ev_timer_start (EV_A_ w);
1509	}	1838	}
1510	}	1839	}
1511		1840
1512	#if EV_PERIODIC_ENABLE	1841	#if EV_PERIODIC_ENABLE
1513	void	1842	void noinline
1514	ev_periodic_start (EV_P_ ev_periodic *w)	1843	ev_periodic_start (EV_P_ ev_periodic *w)
1515	{	1844	{
1516	if (expect_false (ev_is_active (w)))	1845	if (expect_false (ev_is_active (w)))
1517	return;	1846	return;
1518		1847
…		…
1520	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1849	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1521	else if (w->interval)	1850	else if (w->interval)
1522	{	1851	{
1523	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1852	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1524	/* this formula differs from the one in periodic_reify because we do not always round up */	1853	/* this formula differs from the one in periodic_reify because we do not always round up */
1525	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1854	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1526	}	1855	}
		1856	else
		1857	((WT)w)->at = w->offset;
1527		1858
1528	ev_start (EV_A_ (W)w, ++periodiccnt);	1859	ev_start (EV_A_ (W)w, ++periodiccnt);
1529	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1860	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1530	periodics [periodiccnt - 1] = w;	1861	periodics [periodiccnt - 1] = (WT)w;
1531	upheap ((WT *)periodics, periodiccnt - 1);	1862	upheap (periodics, periodiccnt - 1);
1532		1863
1533	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1864	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1534	}	1865	}
1535		1866
1536	void	1867	void noinline
1537	ev_periodic_stop (EV_P_ ev_periodic *w)	1868	ev_periodic_stop (EV_P_ ev_periodic *w)
1538	{	1869	{
1539	ev_clear_pending (EV_A_ (W)w);	1870	clear_pending (EV_A_ (W)w);
1540	if (expect_false (!ev_is_active (w)))	1871	if (expect_false (!ev_is_active (w)))
1541	return;	1872	return;
1542		1873
1543	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1874	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1544		1875
		1876	{
		1877	int active = ((W)w)->active;
		1878
1545	if (expect_true (((W)w)->active < periodiccnt--))	1879	if (expect_true (--active < --periodiccnt))
1546	{	1880	{
1547	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1881	periodics [active] = periodics [periodiccnt];
1548	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1882	adjustheap (periodics, periodiccnt, active);
1549	}	1883	}
		1884	}
1550		1885
1551	ev_stop (EV_A_ (W)w);	1886	ev_stop (EV_A_ (W)w);
1552	}	1887	}
1553		1888
1554	void	1889	void noinline
1555	ev_periodic_again (EV_P_ ev_periodic *w)	1890	ev_periodic_again (EV_P_ ev_periodic *w)
1556	{	1891	{
1557	/* TODO: use adjustheap and recalculation */	1892	/* TODO: use adjustheap and recalculation */
1558	ev_periodic_stop (EV_A_ w);	1893	ev_periodic_stop (EV_A_ w);
1559	ev_periodic_start (EV_A_ w);	1894	ev_periodic_start (EV_A_ w);
…		…
1562		1897
1563	#ifndef SA_RESTART	1898	#ifndef SA_RESTART
1564	# define SA_RESTART 0	1899	# define SA_RESTART 0
1565	#endif	1900	#endif
1566		1901
1567	void	1902	void noinline
1568	ev_signal_start (EV_P_ ev_signal *w)	1903	ev_signal_start (EV_P_ ev_signal *w)
1569	{	1904	{
1570	#if EV_MULTIPLICITY	1905	#if EV_MULTIPLICITY
1571	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1906	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1572	#endif	1907	#endif
1573	if (expect_false (ev_is_active (w)))	1908	if (expect_false (ev_is_active (w)))
1574	return;	1909	return;
1575		1910
1576	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1911	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1577		1912
		1913	evpipe_init (EV_A);
		1914
		1915	{
		1916	#ifndef _WIN32
		1917	sigset_t full, prev;
		1918	sigfillset (&full);
		1919	sigprocmask (SIG_SETMASK, &full, &prev);
		1920	#endif
		1921
		1922	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1923
		1924	#ifndef _WIN32
		1925	sigprocmask (SIG_SETMASK, &prev, 0);
		1926	#endif
		1927	}
		1928
1578	ev_start (EV_A_ (W)w, 1);	1929	ev_start (EV_A_ (W)w, 1);
1579	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1580	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1930	wlist_add (&signals [w->signum - 1].head, (WL)w);
1581		1931
1582	if (!((WL)w)->next)	1932	if (!((WL)w)->next)
1583	{	1933	{
1584	#if _WIN32	1934	#if _WIN32
1585	signal (w->signum, sighandler);	1935	signal (w->signum, ev_sighandler);
1586	#else	1936	#else
1587	struct sigaction sa;	1937	struct sigaction sa;
1588	sa.sa_handler = sighandler;	1938	sa.sa_handler = ev_sighandler;
1589	sigfillset (&sa.sa_mask);	1939	sigfillset (&sa.sa_mask);
1590	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1940	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1591	sigaction (w->signum, &sa, 0);	1941	sigaction (w->signum, &sa, 0);
1592	#endif	1942	#endif
1593	}	1943	}
1594	}	1944	}
1595		1945
1596	void	1946	void noinline
1597	ev_signal_stop (EV_P_ ev_signal *w)	1947	ev_signal_stop (EV_P_ ev_signal *w)
1598	{	1948	{
1599	ev_clear_pending (EV_A_ (W)w);	1949	clear_pending (EV_A_ (W)w);
1600	if (expect_false (!ev_is_active (w)))	1950	if (expect_false (!ev_is_active (w)))
1601	return;	1951	return;
1602		1952
1603	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1953	wlist_del (&signals [w->signum - 1].head, (WL)w);
1604	ev_stop (EV_A_ (W)w);	1954	ev_stop (EV_A_ (W)w);
1605		1955
1606	if (!signals [w->signum - 1].head)	1956	if (!signals [w->signum - 1].head)
1607	signal (w->signum, SIG_DFL);	1957	signal (w->signum, SIG_DFL);
1608	}	1958	}
…		…
1615	#endif	1965	#endif
1616	if (expect_false (ev_is_active (w)))	1966	if (expect_false (ev_is_active (w)))
1617	return;	1967	return;
1618		1968
1619	ev_start (EV_A_ (W)w, 1);	1969	ev_start (EV_A_ (W)w, 1);
1620	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1970	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1621	}	1971	}
1622		1972
1623	void	1973	void
1624	ev_child_stop (EV_P_ ev_child *w)	1974	ev_child_stop (EV_P_ ev_child *w)
1625	{	1975	{
1626	ev_clear_pending (EV_A_ (W)w);	1976	clear_pending (EV_A_ (W)w);
1627	if (expect_false (!ev_is_active (w)))	1977	if (expect_false (!ev_is_active (w)))
1628	return;	1978	return;
1629		1979
1630	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1980	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1631	ev_stop (EV_A_ (W)w);	1981	ev_stop (EV_A_ (W)w);
1632	}	1982	}
1633		1983
1634	#if EV_STAT_ENABLE	1984	#if EV_STAT_ENABLE
1635		1985
…		…
1639	# endif	1989	# endif
1640		1990
1641	#define DEF_STAT_INTERVAL 5.0074891	1991	#define DEF_STAT_INTERVAL 5.0074891
1642	#define MIN_STAT_INTERVAL 0.1074891	1992	#define MIN_STAT_INTERVAL 0.1074891
1643		1993
		1994	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1995
		1996	#if EV_USE_INOTIFY
		1997	# define EV_INOTIFY_BUFSIZE 8192
		1998
		1999	static void noinline
		2000	infy_add (EV_P_ ev_stat *w)
		2001	{
		2002	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);
		2003
		2004	if (w->wd < 0)
		2005	{
		2006	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		2007
		2008	/* monitor some parent directory for speedup hints */
		2009	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
		2010	{
		2011	char path [4096];
		2012	strcpy (path, w->path);
		2013
		2014	do
		2015	{
		2016	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
		2017	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
		2018
		2019	char *pend = strrchr (path, '/');
		2020
		2021	if (!pend)
		2022	break; /* whoops, no '/', complain to your admin */
		2023
		2024	*pend = 0;
		2025	w->wd = inotify_add_watch (fs_fd, path, mask);
		2026	}
		2027	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
		2028	}
		2029	}
		2030	else
		2031	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		2032
		2033	if (w->wd >= 0)
		2034	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2035	}
		2036
		2037	static void noinline
		2038	infy_del (EV_P_ ev_stat *w)
		2039	{
		2040	int slot;
		2041	int wd = w->wd;
		2042
		2043	if (wd < 0)
		2044	return;
		2045
		2046	w->wd = -2;
		2047	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2048	wlist_del (&fs_hash [slot].head, (WL)w);
		2049
		2050	/* remove this watcher, if others are watching it, they will rearm */
		2051	inotify_rm_watch (fs_fd, wd);
		2052	}
		2053
		2054	static void noinline
		2055	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2056	{
		2057	if (slot < 0)
		2058	/* overflow, need to check for all hahs slots */
		2059	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2060	infy_wd (EV_A_ slot, wd, ev);
		2061	else
		2062	{
		2063	WL w_;
		2064
		2065	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2066	{
		2067	ev_stat w = (ev_stat )w_;
		2068	w_ = w_->next; /* lets us remove this watcher and all before it */
		2069
		2070	if (w->wd == wd \|\| wd == -1)
		2071	{
		2072	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
		2073	{
		2074	w->wd = -1;
		2075	infy_add (EV_A_ w); /* re-add, no matter what */
		2076	}
		2077
		2078	stat_timer_cb (EV_A_ &w->timer, 0);
		2079	}
		2080	}
		2081	}
		2082	}
		2083
		2084	static void
		2085	infy_cb (EV_P_ ev_io *w, int revents)
		2086	{
		2087	char buf [EV_INOTIFY_BUFSIZE];
		2088	struct inotify_event ev = (struct inotify_event )buf;
		2089	int ofs;
		2090	int len = read (fs_fd, buf, sizeof (buf));
		2091
		2092	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2093	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2094	}
		2095
		2096	void inline_size
		2097	infy_init (EV_P)
		2098	{
		2099	if (fs_fd != -2)
		2100	return;
		2101
		2102	fs_fd = inotify_init ();
		2103
		2104	if (fs_fd >= 0)
		2105	{
		2106	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2107	ev_set_priority (&fs_w, EV_MAXPRI);
		2108	ev_io_start (EV_A_ &fs_w);
		2109	}
		2110	}
		2111
		2112	void inline_size
		2113	infy_fork (EV_P)
		2114	{
		2115	int slot;
		2116
		2117	if (fs_fd < 0)
		2118	return;
		2119
		2120	close (fs_fd);
		2121	fs_fd = inotify_init ();
		2122
		2123	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2124	{
		2125	WL w_ = fs_hash [slot].head;
		2126	fs_hash [slot].head = 0;
		2127
		2128	while (w_)
		2129	{
		2130	ev_stat w = (ev_stat )w_;
		2131	w_ = w_->next; /* lets us add this watcher */
		2132
		2133	w->wd = -1;
		2134
		2135	if (fs_fd >= 0)
		2136	infy_add (EV_A_ w); /* re-add, no matter what */
		2137	else
		2138	ev_timer_start (EV_A_ &w->timer);
		2139	}
		2140
		2141	}
		2142	}
		2143
		2144	#endif
		2145
1644	void	2146	void
1645	ev_stat_stat (EV_P_ ev_stat *w)	2147	ev_stat_stat (EV_P_ ev_stat *w)
1646	{	2148	{
1647	if (lstat (w->path, &w->attr) < 0)	2149	if (lstat (w->path, &w->attr) < 0)
1648	w->attr.st_nlink = 0;	2150	w->attr.st_nlink = 0;
1649	else if (!w->attr.st_nlink)	2151	else if (!w->attr.st_nlink)
1650	w->attr.st_nlink = 1;	2152	w->attr.st_nlink = 1;
1651	}	2153	}
1652		2154
1653	static void	2155	static void noinline
1654	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2156	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1655	{	2157	{
1656	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	2158	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1657		2159
1658	/* we copy this here each the time so that */	2160	/* we copy this here each the time so that */
1659	/* prev has the old value when the callback gets invoked */	2161	/* prev has the old value when the callback gets invoked */
1660	w->prev = w->attr;	2162	w->prev = w->attr;
1661	ev_stat_stat (EV_A_ w);	2163	ev_stat_stat (EV_A_ w);
1662		2164
1663	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2165	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2166	if (
		2167	w->prev.st_dev != w->attr.st_dev
		2168	\|\| w->prev.st_ino != w->attr.st_ino
		2169	\|\| w->prev.st_mode != w->attr.st_mode
		2170	\|\| w->prev.st_nlink != w->attr.st_nlink
		2171	\|\| w->prev.st_uid != w->attr.st_uid
		2172	\|\| w->prev.st_gid != w->attr.st_gid
		2173	\|\| w->prev.st_rdev != w->attr.st_rdev
		2174	\|\| w->prev.st_size != w->attr.st_size
		2175	\|\| w->prev.st_atime != w->attr.st_atime
		2176	\|\| w->prev.st_mtime != w->attr.st_mtime
		2177	\|\| w->prev.st_ctime != w->attr.st_ctime
		2178	) {
		2179	#if EV_USE_INOTIFY
		2180	infy_del (EV_A_ w);
		2181	infy_add (EV_A_ w);
		2182	ev_stat_stat (EV_A_ w); /* avoid race... */
		2183	#endif
		2184
1664	ev_feed_event (EV_A_ w, EV_STAT);	2185	ev_feed_event (EV_A_ w, EV_STAT);
		2186	}
1665	}	2187	}
1666		2188
1667	void	2189	void
1668	ev_stat_start (EV_P_ ev_stat *w)	2190	ev_stat_start (EV_P_ ev_stat *w)
1669	{	2191	{
…		…
1679	if (w->interval < MIN_STAT_INTERVAL)	2201	if (w->interval < MIN_STAT_INTERVAL)
1680	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2202	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1681		2203
1682	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2204	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1683	ev_set_priority (&w->timer, ev_priority (w));	2205	ev_set_priority (&w->timer, ev_priority (w));
		2206
		2207	#if EV_USE_INOTIFY
		2208	infy_init (EV_A);
		2209
		2210	if (fs_fd >= 0)
		2211	infy_add (EV_A_ w);
		2212	else
		2213	#endif
1684	ev_timer_start (EV_A_ &w->timer);	2214	ev_timer_start (EV_A_ &w->timer);
1685		2215
1686	ev_start (EV_A_ (W)w, 1);	2216	ev_start (EV_A_ (W)w, 1);
1687	}	2217	}
1688		2218
1689	void	2219	void
1690	ev_stat_stop (EV_P_ ev_stat *w)	2220	ev_stat_stop (EV_P_ ev_stat *w)
1691	{	2221	{
1692	ev_clear_pending (EV_A_ (W)w);	2222	clear_pending (EV_A_ (W)w);
1693	if (expect_false (!ev_is_active (w)))	2223	if (expect_false (!ev_is_active (w)))
1694	return;	2224	return;
1695		2225
		2226	#if EV_USE_INOTIFY
		2227	infy_del (EV_A_ w);
		2228	#endif
1696	ev_timer_stop (EV_A_ &w->timer);	2229	ev_timer_stop (EV_A_ &w->timer);
1697		2230
1698	ev_stop (EV_A_ (W)w);	2231	ev_stop (EV_A_ (W)w);
1699	}	2232	}
1700	#endif	2233	#endif
1701		2234
		2235	#if EV_IDLE_ENABLE
1702	void	2236	void
1703	ev_idle_start (EV_P_ ev_idle *w)	2237	ev_idle_start (EV_P_ ev_idle *w)
1704	{	2238	{
1705	if (expect_false (ev_is_active (w)))	2239	if (expect_false (ev_is_active (w)))
1706	return;	2240	return;
1707		2241
		2242	pri_adjust (EV_A_ (W)w);
		2243
		2244	{
		2245	int active = ++idlecnt [ABSPRI (w)];
		2246
		2247	++idleall;
1708	ev_start (EV_A_ (W)w, ++idlecnt);	2248	ev_start (EV_A_ (W)w, active);
		2249
1709	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2250	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1710	idles [idlecnt - 1] = w;	2251	idles [ABSPRI (w)][active - 1] = w;
		2252	}
1711	}	2253	}
1712		2254
1713	void	2255	void
1714	ev_idle_stop (EV_P_ ev_idle *w)	2256	ev_idle_stop (EV_P_ ev_idle *w)
1715	{	2257	{
1716	ev_clear_pending (EV_A_ (W)w);	2258	clear_pending (EV_A_ (W)w);
1717	if (expect_false (!ev_is_active (w)))	2259	if (expect_false (!ev_is_active (w)))
1718	return;	2260	return;
1719		2261
1720	{	2262	{
1721	int active = ((W)w)->active;	2263	int active = ((W)w)->active;
1722	idles [active - 1] = idles [--idlecnt];	2264
		2265	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1723	((W)idles [active - 1])->active = active;	2266	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2267
		2268	ev_stop (EV_A_ (W)w);
		2269	--idleall;
1724	}	2270	}
1725
1726	ev_stop (EV_A_ (W)w);
1727	}	2271	}
		2272	#endif
1728		2273
1729	void	2274	void
1730	ev_prepare_start (EV_P_ ev_prepare *w)	2275	ev_prepare_start (EV_P_ ev_prepare *w)
1731	{	2276	{
1732	if (expect_false (ev_is_active (w)))	2277	if (expect_false (ev_is_active (w)))
…		…
1738	}	2283	}
1739		2284
1740	void	2285	void
1741	ev_prepare_stop (EV_P_ ev_prepare *w)	2286	ev_prepare_stop (EV_P_ ev_prepare *w)
1742	{	2287	{
1743	ev_clear_pending (EV_A_ (W)w);	2288	clear_pending (EV_A_ (W)w);
1744	if (expect_false (!ev_is_active (w)))	2289	if (expect_false (!ev_is_active (w)))
1745	return;	2290	return;
1746		2291
1747	{	2292	{
1748	int active = ((W)w)->active;	2293	int active = ((W)w)->active;
…		…
1765	}	2310	}
1766		2311
1767	void	2312	void
1768	ev_check_stop (EV_P_ ev_check *w)	2313	ev_check_stop (EV_P_ ev_check *w)
1769	{	2314	{
1770	ev_clear_pending (EV_A_ (W)w);	2315	clear_pending (EV_A_ (W)w);
1771	if (expect_false (!ev_is_active (w)))	2316	if (expect_false (!ev_is_active (w)))
1772	return;	2317	return;
1773		2318
1774	{	2319	{
1775	int active = ((W)w)->active;	2320	int active = ((W)w)->active;
…		…
1782		2327
1783	#if EV_EMBED_ENABLE	2328	#if EV_EMBED_ENABLE
1784	void noinline	2329	void noinline
1785	ev_embed_sweep (EV_P_ ev_embed *w)	2330	ev_embed_sweep (EV_P_ ev_embed *w)
1786	{	2331	{
1787	ev_loop (w->loop, EVLOOP_NONBLOCK);	2332	ev_loop (w->other, EVLOOP_NONBLOCK);
1788	}	2333	}
1789		2334
1790	static void	2335	static void
1791	embed_cb (EV_P_ ev_io *io, int revents)	2336	embed_io_cb (EV_P_ ev_io *io, int revents)
1792	{	2337	{
1793	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2338	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
1794		2339
1795	if (ev_cb (w))	2340	if (ev_cb (w))
1796	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2341	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1797	else	2342	else
1798	ev_embed_sweep (loop, w);	2343	ev_loop (w->other, EVLOOP_NONBLOCK);
1799	}	2344	}
		2345
		2346	static void
		2347	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2348	{
		2349	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2350
		2351	{
		2352	struct ev_loop *loop = w->other;
		2353
		2354	while (fdchangecnt)
		2355	{
		2356	fd_reify (EV_A);
		2357	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2358	}
		2359	}
		2360	}
		2361
		2362	#if 0
		2363	static void
		2364	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2365	{
		2366	ev_idle_stop (EV_A_ idle);
		2367	}
		2368	#endif
1800		2369
1801	void	2370	void
1802	ev_embed_start (EV_P_ ev_embed *w)	2371	ev_embed_start (EV_P_ ev_embed *w)
1803	{	2372	{
1804	if (expect_false (ev_is_active (w)))	2373	if (expect_false (ev_is_active (w)))
1805	return;	2374	return;
1806		2375
1807	{	2376	{
1808	struct ev_loop *loop = w->loop;	2377	struct ev_loop *loop = w->other;
1809	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2378	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1810	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2379	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1811	}	2380	}
1812		2381
1813	ev_set_priority (&w->io, ev_priority (w));	2382	ev_set_priority (&w->io, ev_priority (w));
1814	ev_io_start (EV_A_ &w->io);	2383	ev_io_start (EV_A_ &w->io);
1815		2384
		2385	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2386	ev_set_priority (&w->prepare, EV_MINPRI);
		2387	ev_prepare_start (EV_A_ &w->prepare);
		2388
		2389	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2390
1816	ev_start (EV_A_ (W)w, 1);	2391	ev_start (EV_A_ (W)w, 1);
1817	}	2392	}
1818		2393
1819	void	2394	void
1820	ev_embed_stop (EV_P_ ev_embed *w)	2395	ev_embed_stop (EV_P_ ev_embed *w)
1821	{	2396	{
1822	ev_clear_pending (EV_A_ (W)w);	2397	clear_pending (EV_A_ (W)w);
1823	if (expect_false (!ev_is_active (w)))	2398	if (expect_false (!ev_is_active (w)))
1824	return;	2399	return;
1825		2400
1826	ev_io_stop (EV_A_ &w->io);	2401	ev_io_stop (EV_A_ &w->io);
		2402	ev_prepare_stop (EV_A_ &w->prepare);
1827		2403
1828	ev_stop (EV_A_ (W)w);	2404	ev_stop (EV_A_ (W)w);
		2405	}
		2406	#endif
		2407
		2408	#if EV_FORK_ENABLE
		2409	void
		2410	ev_fork_start (EV_P_ ev_fork *w)
		2411	{
		2412	if (expect_false (ev_is_active (w)))
		2413	return;
		2414
		2415	ev_start (EV_A_ (W)w, ++forkcnt);
		2416	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2417	forks [forkcnt - 1] = w;
		2418	}
		2419
		2420	void
		2421	ev_fork_stop (EV_P_ ev_fork *w)
		2422	{
		2423	clear_pending (EV_A_ (W)w);
		2424	if (expect_false (!ev_is_active (w)))
		2425	return;
		2426
		2427	{
		2428	int active = ((W)w)->active;
		2429	forks [active - 1] = forks [--forkcnt];
		2430	((W)forks [active - 1])->active = active;
		2431	}
		2432
		2433	ev_stop (EV_A_ (W)w);
		2434	}
		2435	#endif
		2436
		2437	#if EV_ASYNC_ENABLE
		2438	void
		2439	ev_async_start (EV_P_ ev_async *w)
		2440	{
		2441	if (expect_false (ev_is_active (w)))
		2442	return;
		2443
		2444	evpipe_init (EV_A);
		2445
		2446	ev_start (EV_A_ (W)w, ++asynccnt);
		2447	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2448	asyncs [asynccnt - 1] = w;
		2449	}
		2450
		2451	void
		2452	ev_async_stop (EV_P_ ev_async *w)
		2453	{
		2454	clear_pending (EV_A_ (W)w);
		2455	if (expect_false (!ev_is_active (w)))
		2456	return;
		2457
		2458	{
		2459	int active = ((W)w)->active;
		2460	asyncs [active - 1] = asyncs [--asynccnt];
		2461	((W)asyncs [active - 1])->active = active;
		2462	}
		2463
		2464	ev_stop (EV_A_ (W)w);
		2465	}
		2466
		2467	void
		2468	ev_async_send (EV_P_ ev_async *w)
		2469	{
		2470	w->sent = 1;
		2471	evpipe_write (EV_A_ &gotasync);
1829	}	2472	}
1830	#endif	2473	#endif
1831		2474
1832	/*****************************************************************************/	2475	/*****************************************************************************/
1833		2476
…		…
1891	ev_timer_set (&once->to, timeout, 0.);	2534	ev_timer_set (&once->to, timeout, 0.);
1892	ev_timer_start (EV_A_ &once->to);	2535	ev_timer_start (EV_A_ &once->to);
1893	}	2536	}
1894	}	2537	}
1895		2538
		2539	#if EV_MULTIPLICITY
		2540	#include "ev_wrap.h"
		2541	#endif
		2542
1896	#ifdef __cplusplus	2543	#ifdef __cplusplus
1897	}	2544	}
1898	#endif	2545	#endif
1899		2546

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Comparing libev/ev.c (file contents): Revision 1.146 by root, Tue Nov 27 09:17:51 2007 UTC vs. Revision 1.218 by root, Sun Mar 23 00:05:03 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.146 by root, Tue Nov 27 09:17:51 2007 UTC vs.
Revision 1.218 by root, Sun Mar 23 00:05:03 2008 UTC