[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 1.168 by root, Sat Dec 8 14:12:07 2007 UTC

…		…
94	# else	94	# else
95	# define EV_USE_PORT 0	95	# define EV_USE_PORT 0
96	# endif	96	# endif
97	# endif	97	# endif
98		98
		99	# ifndef EV_USE_INOTIFY
		100	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		101	# define EV_USE_INOTIFY 1
		102	# else
		103	# define EV_USE_INOTIFY 0
		104	# endif
		105	# endif
		106
99	#endif	107	#endif
100		108
101	#include <math.h>	109	#include <math.h>
102	#include <stdlib.h>	110	#include <stdlib.h>
103	#include <fcntl.h>	111	#include <fcntl.h>
…		…
109	#include <errno.h>	117	#include <errno.h>
110	#include <sys/types.h>	118	#include <sys/types.h>
111	#include <time.h>	119	#include <time.h>
112		120
113	#include <signal.h>	121	#include <signal.h>
		122
		123	#ifdef EV_H
		124	# include EV_H
		125	#else
		126	# include "ev.h"
		127	#endif
114		128
115	#ifndef _WIN32	129	#ifndef _WIN32
116	# include <sys/time.h>	130	# include <sys/time.h>
117	# include <sys/wait.h>	131	# include <sys/wait.h>
118	# include <unistd.h>	132	# include <unistd.h>
…		…
156		170
157	#ifndef EV_USE_PORT	171	#ifndef EV_USE_PORT
158	# define EV_USE_PORT 0	172	# define EV_USE_PORT 0
159	#endif	173	#endif
160		174
		175	#ifndef EV_USE_INOTIFY
		176	# define EV_USE_INOTIFY 0
		177	#endif
		178
		179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
		182	# else
		183	# define EV_PID_HASHSIZE 16
		184	# endif
		185	#endif
		186
		187	#ifndef EV_INOTIFY_HASHSIZE
		188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
		193	#endif
		194
161	/**/	195	/**/
162		196
163	#ifndef CLOCK_MONOTONIC	197	#ifndef CLOCK_MONOTONIC
164	# undef EV_USE_MONOTONIC	198	# undef EV_USE_MONOTONIC
165	# define EV_USE_MONOTONIC 0	199	# define EV_USE_MONOTONIC 0
…		…
172		206
173	#if EV_SELECT_IS_WINSOCKET	207	#if EV_SELECT_IS_WINSOCKET
174	# include <winsock.h>	208	# include <winsock.h>
175	#endif	209	#endif
176		210
		211	#if !EV_STAT_ENABLE
		212	# define EV_USE_INOTIFY 0
		213	#endif
		214
		215	#if EV_USE_INOTIFY
		216	# include <sys/inotify.h>
		217	#endif
		218
177	/**/	219	/**/
178		220
179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	221	#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) */	222	#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 */	223	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
183
184	#ifdef EV_H
185	# include EV_H
186	#else
187	# include "ev.h"
188	#endif
189		224
190	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
191	# define expect(expr,value) __builtin_expect ((expr),(value))	226	# define expect(expr,value) __builtin_expect ((expr),(value))
192	# define inline_size static inline /* inline for codesize */	227	# define inline_size static inline /* inline for codesize */
193	# if EV_MINIMAL	228	# if EV_MINIMAL
…		…
206		241
207	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
208	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
209		244
210	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212		247
213	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	248	#define EMPTY /* required for microsofts broken pseudo-c compiler */
214	#define EMPTY2(a,b) /* used to suppress some warnings */	249	#define EMPTY2(a,b) /* used to suppress some warnings */
215		250
216	typedef ev_watcher *W;	251	typedef ev_watcher *W;
217	typedef ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
218	typedef ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
…		…
254	ev_set_allocator (void (cb)(void *ptr, long size))	289	ev_set_allocator (void (cb)(void *ptr, long size))
255	{	290	{
256	alloc = cb;	291	alloc = cb;
257	}	292	}
258		293
259	static void *	294	inline_speed void *
260	ev_realloc (void *ptr, long size)	295	ev_realloc (void *ptr, long size)
261	{	296	{
262	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263		298
264	if (!ptr && size)	299	if (!ptr && size)
…		…
288	typedef struct	323	typedef struct
289	{	324	{
290	W w;	325	W w;
291	int events;	326	int events;
292	} ANPENDING;	327	} ANPENDING;
		328
		329	#if EV_USE_INOTIFY
		330	typedef struct
		331	{
		332	WL head;
		333	} ANFS;
		334	#endif
293		335
294	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
295		337
296	struct ev_loop	338	struct ev_loop
297	{	339	{
…		…
354	{	396	{
355	return ev_rt_now;	397	return ev_rt_now;
356	}	398	}
357	#endif	399	#endif
358		400
359	#define array_roundsize(type,n) (((n) \| 4) & ~3)	401	int inline_size
		402	array_nextsize (int elem, int cur, int cnt)
		403	{
		404	int ncur = cur + 1;
		405
		406	do
		407	ncur <<= 1;
		408	while (cnt > ncur);
		409
		410	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		411	if (elem * ncur > 4096)
		412	{
		413	ncur *= elem;
		414	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		415	ncur = ncur - sizeof (void ) 4;
		416	ncur /= elem;
		417	}
		418
		419	return ncur;
		420	}
		421
		422	inline_speed void *
		423	array_realloc (int elem, void base, int cur, int cnt)
		424	{
		425	cur = array_nextsize (elem, cur, cnt);
		426	return ev_realloc (base, elem * *cur);
		427	}
360		428
361	#define array_needsize(type,base,cur,cnt,init) \	429	#define array_needsize(type,base,cur,cnt,init) \
362	if (expect_false ((cnt) > cur)) \	430	if (expect_false ((cnt) > (cur))) \
363	{ \	431	{ \
364	int newcnt = cur; \	432	int ocur_ = (cur); \
365	do \	433	(base) = (type *)array_realloc \
366	{ \	434	(sizeof (type), (base), &(cur), (cnt)); \
367	newcnt = array_roundsize (type, newcnt << 1); \	435	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	}	436	}
375		437
		438	#if 0
376	#define array_slim(type,stem) \	439	#define array_slim(type,stem) \
377	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	440	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
378	{ \	441	{ \
379	stem ## max = array_roundsize (stem ## cnt >> 1); \	442	stem ## max = array_roundsize (stem ## cnt >> 1); \
380	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	443	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
381	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	444	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
382	}	445	}
		446	#endif
383		447
384	#define array_free(stem, idx) \	448	#define array_free(stem, idx) \
385	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	449	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
386		450
387	/*****************************************************************************/	451	/*****************************************************************************/
…		…
443	}	507	}
444		508
445	void	509	void
446	ev_feed_fd_event (EV_P_ int fd, int revents)	510	ev_feed_fd_event (EV_P_ int fd, int revents)
447	{	511	{
		512	if (fd >= 0 && fd < anfdmax)
448	fd_event (EV_A_ fd, revents);	513	fd_event (EV_A_ fd, revents);
449	}	514	}
450		515
451	void inline_size	516	void inline_size
452	fd_reify (EV_P)	517	fd_reify (EV_P)
453	{	518	{
…		…
547	static void noinline	612	static void noinline
548	fd_rearm_all (EV_P)	613	fd_rearm_all (EV_P)
549	{	614	{
550	int fd;	615	int fd;
551		616
552	/* this should be highly optimised to not do anything but set a flag */
553	for (fd = 0; fd < anfdmax; ++fd)	617	for (fd = 0; fd < anfdmax; ++fd)
554	if (anfds [fd].events)	618	if (anfds [fd].events)
555	{	619	{
556	anfds [fd].events = 0;	620	anfds [fd].events = 0;
557	fd_change (EV_A_ fd);	621	fd_change (EV_A_ fd);
…		…
709	ev_unref (EV_A); /* child watcher should not keep loop alive */	773	ev_unref (EV_A); /* child watcher should not keep loop alive */
710	}	774	}
711		775
712	/*****************************************************************************/	776	/*****************************************************************************/
713		777
714	static ev_child *childs [PID_HASHSIZE];	778	static ev_child *childs [EV_PID_HASHSIZE];
715		779
716	#ifndef _WIN32	780	#ifndef _WIN32
717		781
718	static ev_signal childev;	782	static ev_signal childev;
719		783
720	void inline_speed	784	void inline_speed
721	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	785	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
722	{	786	{
723	ev_child *w;	787	ev_child *w;
724		788
725	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	789	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
726	if (w->pid == pid \|\| !w->pid)	790	if (w->pid == pid \|\| !w->pid)
727	{	791	{
728	ev_priority (w) = ev_priority (sw); /* need to do it now */	792	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
729	w->rpid = pid;	793	w->rpid = pid;
730	w->rstatus = status;	794	w->rstatus = status;
731	ev_feed_event (EV_A_ (W)w, EV_CHILD);	795	ev_feed_event (EV_A_ (W)w, EV_CHILD);
732	}	796	}
733	}	797	}
734		798
735	#ifndef WCONTINUED	799	#ifndef WCONTINUED
…		…
751	/* make sure we are called again until all childs have been reaped */	815	/* 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 */	816	/* 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);	817	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754		818
755	child_reap (EV_A_ sw, pid, pid, status);	819	child_reap (EV_A_ sw, pid, pid, status);
		820	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 */	821	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757	}	822	}
758		823
759	#endif	824	#endif
760		825
761	/*****************************************************************************/	826	/*****************************************************************************/
…		…
844	ev_backend (EV_P)	909	ev_backend (EV_P)
845	{	910	{
846	return backend;	911	return backend;
847	}	912	}
848		913
849	static void	914	unsigned int
		915	ev_loop_count (EV_P)
		916	{
		917	return loop_count;
		918	}
		919
		920	static void noinline
850	loop_init (EV_P_ unsigned int flags)	921	loop_init (EV_P_ unsigned int flags)
851	{	922	{
852	if (!backend)	923	if (!backend)
853	{	924	{
854	#if EV_USE_MONOTONIC	925	#if EV_USE_MONOTONIC
…		…
862	ev_rt_now = ev_time ();	933	ev_rt_now = ev_time ();
863	mn_now = get_clock ();	934	mn_now = get_clock ();
864	now_floor = mn_now;	935	now_floor = mn_now;
865	rtmn_diff = ev_rt_now - mn_now;	936	rtmn_diff = ev_rt_now - mn_now;
866		937
		938	/* pid check not overridable via env */
		939	#ifndef _WIN32
		940	if (flags & EVFLAG_FORKCHECK)
		941	curpid = getpid ();
		942	#endif
		943
867	if (!(flags & EVFLAG_NOENV)	944	if (!(flags & EVFLAG_NOENV)
868	&& !enable_secure ()	945	&& !enable_secure ()
869	&& getenv ("LIBEV_FLAGS"))	946	&& getenv ("LIBEV_FLAGS"))
870	flags = atoi (getenv ("LIBEV_FLAGS"));	947	flags = atoi (getenv ("LIBEV_FLAGS"));
871		948
872	if (!(flags & 0x0000ffffUL))	949	if (!(flags & 0x0000ffffUL))
873	flags \|= ev_recommended_backends ();	950	flags \|= ev_recommended_backends ();
874		951
875	backend = 0;	952	backend = 0;
		953	backend_fd = -1;
		954	#if EV_USE_INOTIFY
		955	fs_fd = -2;
		956	#endif
		957
876	#if EV_USE_PORT	958	#if EV_USE_PORT
877	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	959	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878	#endif	960	#endif
879	#if EV_USE_KQUEUE	961	#if EV_USE_KQUEUE
880	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	962	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
892	ev_init (&sigev, sigcb);	974	ev_init (&sigev, sigcb);
893	ev_set_priority (&sigev, EV_MAXPRI);	975	ev_set_priority (&sigev, EV_MAXPRI);
894	}	976	}
895	}	977	}
896		978
897	static void	979	static void noinline
898	loop_destroy (EV_P)	980	loop_destroy (EV_P)
899	{	981	{
900	int i;	982	int i;
		983
		984	#if EV_USE_INOTIFY
		985	if (fs_fd >= 0)
		986	close (fs_fd);
		987	#endif
		988
		989	if (backend_fd >= 0)
		990	close (backend_fd);
901		991
902	#if EV_USE_PORT	992	#if EV_USE_PORT
903	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	993	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904	#endif	994	#endif
905	#if EV_USE_KQUEUE	995	#if EV_USE_KQUEUE
…		…
914	#if EV_USE_SELECT	1004	#if EV_USE_SELECT
915	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1005	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
916	#endif	1006	#endif
917		1007
918	for (i = NUMPRI; i--; )	1008	for (i = NUMPRI; i--; )
		1009	{
919	array_free (pending, [i]);	1010	array_free (pending, [i]);
		1011	#if EV_IDLE_ENABLE
		1012	array_free (idle, [i]);
		1013	#endif
		1014	}
920		1015
921	/* have to use the microsoft-never-gets-it-right macro */	1016	/* have to use the microsoft-never-gets-it-right macro */
922	array_free (fdchange, EMPTY0);	1017	array_free (fdchange, EMPTY);
923	array_free (timer, EMPTY0);	1018	array_free (timer, EMPTY);
924	#if EV_PERIODIC_ENABLE	1019	#if EV_PERIODIC_ENABLE
925	array_free (periodic, EMPTY0);	1020	array_free (periodic, EMPTY);
926	#endif	1021	#endif
927	array_free (idle, EMPTY0);
928	array_free (prepare, EMPTY0);	1022	array_free (prepare, EMPTY);
929	array_free (check, EMPTY0);	1023	array_free (check, EMPTY);
930		1024
931	backend = 0;	1025	backend = 0;
932	}	1026	}
933		1027
934	static void	1028	void inline_size infy_fork (EV_P);
		1029
		1030	void inline_size
935	loop_fork (EV_P)	1031	loop_fork (EV_P)
936	{	1032	{
937	#if EV_USE_PORT	1033	#if EV_USE_PORT
938	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1034	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939	#endif	1035	#endif
940	#if EV_USE_KQUEUE	1036	#if EV_USE_KQUEUE
941	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1037	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942	#endif	1038	#endif
943	#if EV_USE_EPOLL	1039	#if EV_USE_EPOLL
944	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1040	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1041	#endif
		1042	#if EV_USE_INOTIFY
		1043	infy_fork (EV_A);
945	#endif	1044	#endif
946		1045
947	if (ev_is_active (&sigev))	1046	if (ev_is_active (&sigev))
948	{	1047	{
949	/* default loop */	1048	/* default loop */
…		…
1065	postfork = 1;	1164	postfork = 1;
1066	}	1165	}
1067		1166
1068	/*****************************************************************************/	1167	/*****************************************************************************/
1069		1168
1070	int inline_size	1169	void
1071	any_pending (EV_P)	1170	ev_invoke (EV_P_ void *w, int revents)
1072	{	1171	{
1073	int pri;	1172	EV_CB_INVOKE ((W)w, revents);
1074
1075	for (pri = NUMPRI; pri--; )
1076	if (pendingcnt [pri])
1077	return 1;
1078
1079	return 0;
1080	}	1173	}
1081		1174
1082	void inline_speed	1175	void inline_speed
1083	call_pending (EV_P)	1176	call_pending (EV_P)
1084	{	1177	{
…		…
1089	{	1182	{
1090	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1183	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091		1184
1092	if (expect_true (p->w))	1185	if (expect_true (p->w))
1093	{	1186	{
1094	assert (("non-pending watcher on pending list", p->w->pending));	1187	/assert (("non-pending watcher on pending list", p->w->pending));/
1095		1188
1096	p->w->pending = 0;	1189	p->w->pending = 0;
1097	EV_CB_INVOKE (p->w, p->events);	1190	EV_CB_INVOKE (p->w, p->events);
1098	}	1191	}
1099	}	1192	}
…		…
1104	{	1197	{
1105	while (timercnt && ((WT)timers [0])->at <= mn_now)	1198	while (timercnt && ((WT)timers [0])->at <= mn_now)
1106	{	1199	{
1107	ev_timer *w = timers [0];	1200	ev_timer *w = timers [0];
1108		1201
1109	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1202	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1110		1203
1111	/* first reschedule or stop timer */	1204	/* first reschedule or stop timer */
1112	if (w->repeat)	1205	if (w->repeat)
1113	{	1206	{
1114	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1207	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
…		…
1132	{	1225	{
1133	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1226	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134	{	1227	{
1135	ev_periodic *w = periodics [0];	1228	ev_periodic *w = periodics [0];
1136		1229
1137	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1230	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1138		1231
1139	/* first reschedule or stop timer */	1232	/* first reschedule or stop timer */
1140	if (w->reschedule_cb)	1233	if (w->reschedule_cb)
1141	{	1234	{
1142	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1235	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
…		…
1176	for (i = periodiccnt >> 1; i--; )	1269	for (i = periodiccnt >> 1; i--; )
1177	downheap ((WT *)periodics, periodiccnt, i);	1270	downheap ((WT *)periodics, periodiccnt, i);
1178	}	1271	}
1179	#endif	1272	#endif
1180		1273
		1274	#if EV_IDLE_ENABLE
		1275	void inline_size
		1276	idle_reify (EV_P)
		1277	{
		1278	if (expect_false (idleall))
		1279	{
		1280	int pri;
		1281
		1282	for (pri = NUMPRI; pri--; )
		1283	{
		1284	if (pendingcnt [pri])
		1285	break;
		1286
		1287	if (idlecnt [pri])
		1288	{
		1289	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1290	break;
		1291	}
		1292	}
		1293	}
		1294	}
		1295	#endif
		1296
1181	int inline_size	1297	int inline_size
1182	time_update_monotonic (EV_P)	1298	time_update_monotonic (EV_P)
1183	{	1299	{
1184	mn_now = get_clock ();	1300	mn_now = get_clock ();
1185		1301
…		…
1209	ev_tstamp odiff = rtmn_diff;	1325	ev_tstamp odiff = rtmn_diff;
1210		1326
1211	/* loop a few times, before making important decisions.	1327	/* loop a few times, before making important decisions.
1212	* on the choice of "4": one iteration isn't enough,	1328	* on the choice of "4": one iteration isn't enough,
1213	* in case we get preempted during the calls to	1329	* in case we get preempted during the calls to
1214	* ev_time and get_clock. a second call is almost guarenteed	1330	* ev_time and get_clock. a second call is almost guaranteed
1215	* to succeed in that case, though. and looping a few more times	1331	* 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	1332	* doesn't hurt either as we only do this on time-jumps or
1217	* in the unlikely event of getting preempted here.	1333	* in the unlikely event of having been preempted here.
1218	*/	1334	*/
1219	for (i = 4; --i; )	1335	for (i = 4; --i; )
1220	{	1336	{
1221	rtmn_diff = ev_rt_now - mn_now;	1337	rtmn_diff = ev_rt_now - mn_now;
1222		1338
…		…
1244	{	1360	{
1245	#if EV_PERIODIC_ENABLE	1361	#if EV_PERIODIC_ENABLE
1246	periodics_reschedule (EV_A);	1362	periodics_reschedule (EV_A);
1247	#endif	1363	#endif
1248		1364
1249	/* adjust timers. this is easy, as the offset is the same for all */	1365	/* adjust timers. this is easy, as the offset is the same for all of them */
1250	for (i = 0; i < timercnt; ++i)	1366	for (i = 0; i < timercnt; ++i)
1251	((WT)timers [i])->at += ev_rt_now - mn_now;	1367	((WT)timers [i])->at += ev_rt_now - mn_now;
1252	}	1368	}
1253		1369
1254	mn_now = ev_rt_now;	1370	mn_now = ev_rt_now;
…		…
1274	{	1390	{
1275	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1391	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
1276	? EVUNLOOP_ONE	1392	? EVUNLOOP_ONE
1277	: EVUNLOOP_CANCEL;	1393	: EVUNLOOP_CANCEL;
1278		1394
1279	while (activecnt)	1395	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1396
		1397	do
1280	{	1398	{
		1399	#ifndef _WIN32
		1400	if (expect_false (curpid)) /* penalise the forking check even more */
		1401	if (expect_false (getpid () != curpid))
		1402	{
		1403	curpid = getpid ();
		1404	postfork = 1;
		1405	}
		1406	#endif
		1407
		1408	#if EV_FORK_ENABLE
		1409	/* we might have forked, so queue fork handlers */
		1410	if (expect_false (postfork))
		1411	if (forkcnt)
		1412	{
		1413	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1414	call_pending (EV_A);
		1415	}
		1416	#endif
		1417
1281	/* queue check watchers (and execute them) */	1418	/* queue check watchers (and execute them) */
1282	if (expect_false (preparecnt))	1419	if (expect_false (preparecnt))
1283	{	1420	{
1284	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1421	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1285	call_pending (EV_A);	1422	call_pending (EV_A);
1286	}	1423	}
1287		1424
		1425	if (expect_false (!activecnt))
		1426	break;
		1427
1288	/* we might have forked, so reify kernel state if necessary */	1428	/* we might have forked, so reify kernel state if necessary */
1289	if (expect_false (postfork))	1429	if (expect_false (postfork))
1290	loop_fork (EV_A);	1430	loop_fork (EV_A);
1291		1431
1292	/* update fd-related kernel structures */	1432	/* update fd-related kernel structures */
1293	fd_reify (EV_A);	1433	fd_reify (EV_A);
1294		1434
1295	/* calculate blocking time */	1435	/* calculate blocking time */
1296	{	1436	{
1297	double block;	1437	ev_tstamp block;
1298		1438
1299	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1439	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))
1300	block = 0.; /* do not block at all */	1440	block = 0.; /* do not block at all */
1301	else	1441	else
1302	{	1442	{
1303	/* update time to cancel out callback processing overhead */	1443	/* update time to cancel out callback processing overhead */
1304	#if EV_USE_MONOTONIC	1444	#if EV_USE_MONOTONIC
…		…
1328	#endif	1468	#endif
1329		1469
1330	if (expect_false (block < 0.)) block = 0.;	1470	if (expect_false (block < 0.)) block = 0.;
1331	}	1471	}
1332		1472
		1473	++loop_count;
1333	backend_poll (EV_A_ block);	1474	backend_poll (EV_A_ block);
1334	}	1475	}
1335		1476
1336	/* update ev_rt_now, do magic */	1477	/* update ev_rt_now, do magic */
1337	time_update (EV_A);	1478	time_update (EV_A);
…		…
1340	timers_reify (EV_A); /* relative timers called last */	1481	timers_reify (EV_A); /* relative timers called last */
1341	#if EV_PERIODIC_ENABLE	1482	#if EV_PERIODIC_ENABLE
1342	periodics_reify (EV_A); /* absolute timers called first */	1483	periodics_reify (EV_A); /* absolute timers called first */
1343	#endif	1484	#endif
1344		1485
		1486	#if EV_IDLE_ENABLE
1345	/* queue idle watchers unless other events are pending */	1487	/* queue idle watchers unless other events are pending */
1346	if (idlecnt && !any_pending (EV_A))	1488	idle_reify (EV_A);
1347	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1489	#endif
1348		1490
1349	/* queue check watchers, to be executed first */	1491	/* queue check watchers, to be executed first */
1350	if (expect_false (checkcnt))	1492	if (expect_false (checkcnt))
1351	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1493	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1352		1494
1353	call_pending (EV_A);	1495	call_pending (EV_A);
1354		1496
1355	if (expect_false (loop_done))
1356	break;
1357	}	1497	}
		1498	while (expect_true (activecnt && !loop_done));
1358		1499
1359	if (loop_done == EVUNLOOP_ONE)	1500	if (loop_done == EVUNLOOP_ONE)
1360	loop_done = EVUNLOOP_CANCEL;	1501	loop_done = EVUNLOOP_CANCEL;
1361	}	1502	}
1362		1503
…		…
1389	head = &(*head)->next;	1530	head = &(*head)->next;
1390	}	1531	}
1391	}	1532	}
1392		1533
1393	void inline_speed	1534	void inline_speed
1394	ev_clear_pending (EV_P_ W w)	1535	clear_pending (EV_P_ W w)
1395	{	1536	{
1396	if (w->pending)	1537	if (w->pending)
1397	{	1538	{
1398	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1539	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1399	w->pending = 0;	1540	w->pending = 0;
1400	}	1541	}
1401	}	1542	}
1402		1543
		1544	int
		1545	ev_clear_pending (EV_P_ void *w)
		1546	{
		1547	W w_ = (W)w;
		1548	int pending = w_->pending;
		1549
		1550	if (!pending)
		1551	return 0;
		1552
		1553	w_->pending = 0;
		1554	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1555	p->w = 0;
		1556
		1557	return p->events;
		1558	}
		1559
		1560	void inline_size
		1561	pri_adjust (EV_P_ W w)
		1562	{
		1563	int pri = w->priority;
		1564	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1565	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1566	w->priority = pri;
		1567	}
		1568
1403	void inline_speed	1569	void inline_speed
1404	ev_start (EV_P_ W w, int active)	1570	ev_start (EV_P_ W w, int active)
1405	{	1571	{
1406	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1572	pri_adjust (EV_A_ w);
1407	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1408
1409	w->active = active;	1573	w->active = active;
1410	ev_ref (EV_A);	1574	ev_ref (EV_A);
1411	}	1575	}
1412		1576
1413	void inline_size	1577	void inline_size
…		…
1437	}	1601	}
1438		1602
1439	void	1603	void
1440	ev_io_stop (EV_P_ ev_io *w)	1604	ev_io_stop (EV_P_ ev_io *w)
1441	{	1605	{
1442	ev_clear_pending (EV_A_ (W)w);	1606	clear_pending (EV_A_ (W)w);
1443	if (expect_false (!ev_is_active (w)))	1607	if (expect_false (!ev_is_active (w)))
1444	return;	1608	return;
1445		1609
1446	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1610	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1447		1611
…		…
1464	ev_start (EV_A_ (W)w, ++timercnt);	1628	ev_start (EV_A_ (W)w, ++timercnt);
1465	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1629	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1466	timers [timercnt - 1] = w;	1630	timers [timercnt - 1] = w;
1467	upheap ((WT *)timers, timercnt - 1);	1631	upheap ((WT *)timers, timercnt - 1);
1468		1632
		1633	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
		1634	}
		1635
		1636	void
		1637	ev_timer_stop (EV_P_ ev_timer *w)
		1638	{
		1639	clear_pending (EV_A_ (W)w);
		1640	if (expect_false (!ev_is_active (w)))
		1641	return;
		1642
1469	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1643	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1470	}
1471		1644
1472	void	1645	{
1473	ev_timer_stop (EV_P_ ev_timer *w)	1646	int active = ((W)w)->active;
1474	{
1475	ev_clear_pending (EV_A_ (W)w);
1476	if (expect_false (!ev_is_active (w)))
1477	return;
1478		1647
1479	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1480
1481	if (expect_true (((W)w)->active < timercnt--))	1648	if (expect_true (--active < --timercnt))
1482	{	1649	{
1483	timers [((W)w)->active - 1] = timers [timercnt];	1650	timers [active] = timers [timercnt];
1484	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1651	adjustheap ((WT *)timers, timercnt, active);
1485	}	1652	}
		1653	}
1486		1654
1487	((WT)w)->at -= mn_now;	1655	((WT)w)->at -= mn_now;
1488		1656
1489	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1490	}	1658	}
…		…
1528	ev_start (EV_A_ (W)w, ++periodiccnt);	1696	ev_start (EV_A_ (W)w, ++periodiccnt);
1529	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1697	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1530	periodics [periodiccnt - 1] = w;	1698	periodics [periodiccnt - 1] = w;
1531	upheap ((WT *)periodics, periodiccnt - 1);	1699	upheap ((WT *)periodics, periodiccnt - 1);
1532		1700
		1701	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
		1702	}
		1703
		1704	void
		1705	ev_periodic_stop (EV_P_ ev_periodic *w)
		1706	{
		1707	clear_pending (EV_A_ (W)w);
		1708	if (expect_false (!ev_is_active (w)))
		1709	return;
		1710
1533	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1711	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1534	}
1535		1712
1536	void	1713	{
1537	ev_periodic_stop (EV_P_ ev_periodic *w)	1714	int active = ((W)w)->active;
1538	{
1539	ev_clear_pending (EV_A_ (W)w);
1540	if (expect_false (!ev_is_active (w)))
1541	return;
1542		1715
1543	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1544
1545	if (expect_true (((W)w)->active < periodiccnt--))	1716	if (expect_true (--active < --periodiccnt))
1546	{	1717	{
1547	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1718	periodics [active] = periodics [periodiccnt];
1548	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1719	adjustheap ((WT *)periodics, periodiccnt, active);
1549	}	1720	}
		1721	}
1550		1722
1551	ev_stop (EV_A_ (W)w);	1723	ev_stop (EV_A_ (W)w);
1552	}	1724	}
1553		1725
1554	void	1726	void
…		…
1594	}	1766	}
1595		1767
1596	void	1768	void
1597	ev_signal_stop (EV_P_ ev_signal *w)	1769	ev_signal_stop (EV_P_ ev_signal *w)
1598	{	1770	{
1599	ev_clear_pending (EV_A_ (W)w);	1771	clear_pending (EV_A_ (W)w);
1600	if (expect_false (!ev_is_active (w)))	1772	if (expect_false (!ev_is_active (w)))
1601	return;	1773	return;
1602		1774
1603	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1775	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1604	ev_stop (EV_A_ (W)w);	1776	ev_stop (EV_A_ (W)w);
…		…
1615	#endif	1787	#endif
1616	if (expect_false (ev_is_active (w)))	1788	if (expect_false (ev_is_active (w)))
1617	return;	1789	return;
1618		1790
1619	ev_start (EV_A_ (W)w, 1);	1791	ev_start (EV_A_ (W)w, 1);
1620	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1792	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1621	}	1793	}
1622		1794
1623	void	1795	void
1624	ev_child_stop (EV_P_ ev_child *w)	1796	ev_child_stop (EV_P_ ev_child *w)
1625	{	1797	{
1626	ev_clear_pending (EV_A_ (W)w);	1798	clear_pending (EV_A_ (W)w);
1627	if (expect_false (!ev_is_active (w)))	1799	if (expect_false (!ev_is_active (w)))
1628	return;	1800	return;
1629		1801
1630	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1802	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1631	ev_stop (EV_A_ (W)w);	1803	ev_stop (EV_A_ (W)w);
1632	}	1804	}
1633		1805
1634	#if EV_STAT_ENABLE	1806	#if EV_STAT_ENABLE
1635		1807
…		…
1639	# endif	1811	# endif
1640		1812
1641	#define DEF_STAT_INTERVAL 5.0074891	1813	#define DEF_STAT_INTERVAL 5.0074891
1642	#define MIN_STAT_INTERVAL 0.1074891	1814	#define MIN_STAT_INTERVAL 0.1074891
1643		1815
		1816	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1817
		1818	#if EV_USE_INOTIFY
		1819	# define EV_INOTIFY_BUFSIZE 8192
		1820
		1821	static void noinline
		1822	infy_add (EV_P_ ev_stat *w)
		1823	{
		1824	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);
		1825
		1826	if (w->wd < 0)
		1827	{
		1828	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1829
		1830	/* monitor some parent directory for speedup hints */
		1831	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
		1832	{
		1833	char path [4096];
		1834	strcpy (path, w->path);
		1835
		1836	do
		1837	{
		1838	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
		1839	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
		1840
		1841	char *pend = strrchr (path, '/');
		1842
		1843	if (!pend)
		1844	break; /* whoops, no '/', complain to your admin */
		1845
		1846	*pend = 0;
		1847	w->wd = inotify_add_watch (fs_fd, path, mask);
		1848	}
		1849	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
		1850	}
		1851	}
		1852	else
		1853	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1854
		1855	if (w->wd >= 0)
		1856	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1857	}
		1858
		1859	static void noinline
		1860	infy_del (EV_P_ ev_stat *w)
		1861	{
		1862	int slot;
		1863	int wd = w->wd;
		1864
		1865	if (wd < 0)
		1866	return;
		1867
		1868	w->wd = -2;
		1869	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1870	wlist_del (&fs_hash [slot].head, (WL)w);
		1871
		1872	/* remove this watcher, if others are watching it, they will rearm */
		1873	inotify_rm_watch (fs_fd, wd);
		1874	}
		1875
		1876	static void noinline
		1877	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1878	{
		1879	if (slot < 0)
		1880	/* overflow, need to check for all hahs slots */
		1881	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1882	infy_wd (EV_A_ slot, wd, ev);
		1883	else
		1884	{
		1885	WL w_;
		1886
		1887	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1888	{
		1889	ev_stat w = (ev_stat )w_;
		1890	w_ = w_->next; /* lets us remove this watcher and all before it */
		1891
		1892	if (w->wd == wd \|\| wd == -1)
		1893	{
		1894	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
		1895	{
		1896	w->wd = -1;
		1897	infy_add (EV_A_ w); /* re-add, no matter what */
		1898	}
		1899
		1900	stat_timer_cb (EV_A_ &w->timer, 0);
		1901	}
		1902	}
		1903	}
		1904	}
		1905
		1906	static void
		1907	infy_cb (EV_P_ ev_io *w, int revents)
		1908	{
		1909	char buf [EV_INOTIFY_BUFSIZE];
		1910	struct inotify_event ev = (struct inotify_event )buf;
		1911	int ofs;
		1912	int len = read (fs_fd, buf, sizeof (buf));
		1913
		1914	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1915	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1916	}
		1917
		1918	void inline_size
		1919	infy_init (EV_P)
		1920	{
		1921	if (fs_fd != -2)
		1922	return;
		1923
		1924	fs_fd = inotify_init ();
		1925
		1926	if (fs_fd >= 0)
		1927	{
		1928	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1929	ev_set_priority (&fs_w, EV_MAXPRI);
		1930	ev_io_start (EV_A_ &fs_w);
		1931	}
		1932	}
		1933
		1934	void inline_size
		1935	infy_fork (EV_P)
		1936	{
		1937	int slot;
		1938
		1939	if (fs_fd < 0)
		1940	return;
		1941
		1942	close (fs_fd);
		1943	fs_fd = inotify_init ();
		1944
		1945	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1946	{
		1947	WL w_ = fs_hash [slot].head;
		1948	fs_hash [slot].head = 0;
		1949
		1950	while (w_)
		1951	{
		1952	ev_stat w = (ev_stat )w_;
		1953	w_ = w_->next; /* lets us add this watcher */
		1954
		1955	w->wd = -1;
		1956
		1957	if (fs_fd >= 0)
		1958	infy_add (EV_A_ w); /* re-add, no matter what */
		1959	else
		1960	ev_timer_start (EV_A_ &w->timer);
		1961	}
		1962
		1963	}
		1964	}
		1965
		1966	#endif
		1967
1644	void	1968	void
1645	ev_stat_stat (EV_P_ ev_stat *w)	1969	ev_stat_stat (EV_P_ ev_stat *w)
1646	{	1970	{
1647	if (lstat (w->path, &w->attr) < 0)	1971	if (lstat (w->path, &w->attr) < 0)
1648	w->attr.st_nlink = 0;	1972	w->attr.st_nlink = 0;
1649	else if (!w->attr.st_nlink)	1973	else if (!w->attr.st_nlink)
1650	w->attr.st_nlink = 1;	1974	w->attr.st_nlink = 1;
1651	}	1975	}
1652		1976
1653	static void	1977	static void noinline
1654	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	1978	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1655	{	1979	{
1656	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	1980	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1657		1981
1658	/* we copy this here each the time so that */	1982	/* we copy this here each the time so that */
1659	/* prev has the old value when the callback gets invoked */	1983	/* prev has the old value when the callback gets invoked */
1660	w->prev = w->attr;	1984	w->prev = w->attr;
1661	ev_stat_stat (EV_A_ w);	1985	ev_stat_stat (EV_A_ w);
1662		1986
1663	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	1987	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1988	if (
		1989	w->prev.st_dev != w->attr.st_dev
		1990	\|\| w->prev.st_ino != w->attr.st_ino
		1991	\|\| w->prev.st_mode != w->attr.st_mode
		1992	\|\| w->prev.st_nlink != w->attr.st_nlink
		1993	\|\| w->prev.st_uid != w->attr.st_uid
		1994	\|\| w->prev.st_gid != w->attr.st_gid
		1995	\|\| w->prev.st_rdev != w->attr.st_rdev
		1996	\|\| w->prev.st_size != w->attr.st_size
		1997	\|\| w->prev.st_atime != w->attr.st_atime
		1998	\|\| w->prev.st_mtime != w->attr.st_mtime
		1999	\|\| w->prev.st_ctime != w->attr.st_ctime
		2000	) {
		2001	#if EV_USE_INOTIFY
		2002	infy_del (EV_A_ w);
		2003	infy_add (EV_A_ w);
		2004	ev_stat_stat (EV_A_ w); /* avoid race... */
		2005	#endif
		2006
1664	ev_feed_event (EV_A_ w, EV_STAT);	2007	ev_feed_event (EV_A_ w, EV_STAT);
		2008	}
1665	}	2009	}
1666		2010
1667	void	2011	void
1668	ev_stat_start (EV_P_ ev_stat *w)	2012	ev_stat_start (EV_P_ ev_stat *w)
1669	{	2013	{
…		…
1679	if (w->interval < MIN_STAT_INTERVAL)	2023	if (w->interval < MIN_STAT_INTERVAL)
1680	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2024	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1681		2025
1682	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2026	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1683	ev_set_priority (&w->timer, ev_priority (w));	2027	ev_set_priority (&w->timer, ev_priority (w));
		2028
		2029	#if EV_USE_INOTIFY
		2030	infy_init (EV_A);
		2031
		2032	if (fs_fd >= 0)
		2033	infy_add (EV_A_ w);
		2034	else
		2035	#endif
1684	ev_timer_start (EV_A_ &w->timer);	2036	ev_timer_start (EV_A_ &w->timer);
1685		2037
1686	ev_start (EV_A_ (W)w, 1);	2038	ev_start (EV_A_ (W)w, 1);
1687	}	2039	}
1688		2040
1689	void	2041	void
1690	ev_stat_stop (EV_P_ ev_stat *w)	2042	ev_stat_stop (EV_P_ ev_stat *w)
1691	{	2043	{
1692	ev_clear_pending (EV_A_ (W)w);	2044	clear_pending (EV_A_ (W)w);
1693	if (expect_false (!ev_is_active (w)))	2045	if (expect_false (!ev_is_active (w)))
1694	return;	2046	return;
1695		2047
		2048	#if EV_USE_INOTIFY
		2049	infy_del (EV_A_ w);
		2050	#endif
1696	ev_timer_stop (EV_A_ &w->timer);	2051	ev_timer_stop (EV_A_ &w->timer);
1697		2052
1698	ev_stop (EV_A_ (W)w);	2053	ev_stop (EV_A_ (W)w);
1699	}	2054	}
1700	#endif	2055	#endif
1701		2056
		2057	#if EV_IDLE_ENABLE
1702	void	2058	void
1703	ev_idle_start (EV_P_ ev_idle *w)	2059	ev_idle_start (EV_P_ ev_idle *w)
1704	{	2060	{
1705	if (expect_false (ev_is_active (w)))	2061	if (expect_false (ev_is_active (w)))
1706	return;	2062	return;
1707		2063
		2064	pri_adjust (EV_A_ (W)w);
		2065
		2066	{
		2067	int active = ++idlecnt [ABSPRI (w)];
		2068
		2069	++idleall;
1708	ev_start (EV_A_ (W)w, ++idlecnt);	2070	ev_start (EV_A_ (W)w, active);
		2071
1709	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2072	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1710	idles [idlecnt - 1] = w;	2073	idles [ABSPRI (w)][active - 1] = w;
		2074	}
1711	}	2075	}
1712		2076
1713	void	2077	void
1714	ev_idle_stop (EV_P_ ev_idle *w)	2078	ev_idle_stop (EV_P_ ev_idle *w)
1715	{	2079	{
1716	ev_clear_pending (EV_A_ (W)w);	2080	clear_pending (EV_A_ (W)w);
1717	if (expect_false (!ev_is_active (w)))	2081	if (expect_false (!ev_is_active (w)))
1718	return;	2082	return;
1719		2083
1720	{	2084	{
1721	int active = ((W)w)->active;	2085	int active = ((W)w)->active;
1722	idles [active - 1] = idles [--idlecnt];	2086
		2087	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1723	((W)idles [active - 1])->active = active;	2088	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2089
		2090	ev_stop (EV_A_ (W)w);
		2091	--idleall;
1724	}	2092	}
1725
1726	ev_stop (EV_A_ (W)w);
1727	}	2093	}
		2094	#endif
1728		2095
1729	void	2096	void
1730	ev_prepare_start (EV_P_ ev_prepare *w)	2097	ev_prepare_start (EV_P_ ev_prepare *w)
1731	{	2098	{
1732	if (expect_false (ev_is_active (w)))	2099	if (expect_false (ev_is_active (w)))
…		…
1738	}	2105	}
1739		2106
1740	void	2107	void
1741	ev_prepare_stop (EV_P_ ev_prepare *w)	2108	ev_prepare_stop (EV_P_ ev_prepare *w)
1742	{	2109	{
1743	ev_clear_pending (EV_A_ (W)w);	2110	clear_pending (EV_A_ (W)w);
1744	if (expect_false (!ev_is_active (w)))	2111	if (expect_false (!ev_is_active (w)))
1745	return;	2112	return;
1746		2113
1747	{	2114	{
1748	int active = ((W)w)->active;	2115	int active = ((W)w)->active;
…		…
1765	}	2132	}
1766		2133
1767	void	2134	void
1768	ev_check_stop (EV_P_ ev_check *w)	2135	ev_check_stop (EV_P_ ev_check *w)
1769	{	2136	{
1770	ev_clear_pending (EV_A_ (W)w);	2137	clear_pending (EV_A_ (W)w);
1771	if (expect_false (!ev_is_active (w)))	2138	if (expect_false (!ev_is_active (w)))
1772	return;	2139	return;
1773		2140
1774	{	2141	{
1775	int active = ((W)w)->active;	2142	int active = ((W)w)->active;
…		…
1817	}	2184	}
1818		2185
1819	void	2186	void
1820	ev_embed_stop (EV_P_ ev_embed *w)	2187	ev_embed_stop (EV_P_ ev_embed *w)
1821	{	2188	{
1822	ev_clear_pending (EV_A_ (W)w);	2189	clear_pending (EV_A_ (W)w);
1823	if (expect_false (!ev_is_active (w)))	2190	if (expect_false (!ev_is_active (w)))
1824	return;	2191	return;
1825		2192
1826	ev_io_stop (EV_A_ &w->io);	2193	ev_io_stop (EV_A_ &w->io);
		2194
		2195	ev_stop (EV_A_ (W)w);
		2196	}
		2197	#endif
		2198
		2199	#if EV_FORK_ENABLE
		2200	void
		2201	ev_fork_start (EV_P_ ev_fork *w)
		2202	{
		2203	if (expect_false (ev_is_active (w)))
		2204	return;
		2205
		2206	ev_start (EV_A_ (W)w, ++forkcnt);
		2207	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2208	forks [forkcnt - 1] = w;
		2209	}
		2210
		2211	void
		2212	ev_fork_stop (EV_P_ ev_fork *w)
		2213	{
		2214	clear_pending (EV_A_ (W)w);
		2215	if (expect_false (!ev_is_active (w)))
		2216	return;
		2217
		2218	{
		2219	int active = ((W)w)->active;
		2220	forks [active - 1] = forks [--forkcnt];
		2221	((W)forks [active - 1])->active = active;
		2222	}
1827		2223
1828	ev_stop (EV_A_ (W)w);	2224	ev_stop (EV_A_ (W)w);
1829	}	2225	}
1830	#endif	2226	#endif
1831		2227

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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 1.168 by root, Sat Dec 8 14:12:07 2007 UTC

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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 1.168 by root, Sat Dec 8 14:12:07 2007 UTC