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

Comparing libev/ev.c (file contents):
Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC vs.
Revision 1.308 by root, Sun Jul 19 20:39:54 2009 UTC

…		…
133	# else	133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
135	# endif	135	# endif
136	# endif	136	# endif
137		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
138	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
139	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
140	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
141	# else	149	# else
142	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
178	# endif	186	# endif
179	#endif	187	#endif
180		188
181	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
182		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
183	#ifndef EV_USE_CLOCK_SYSCALL	218	#ifndef EV_USE_CLOCK_SYSCALL
184	# if __linux && __GLIBC__ >= 2	219	# if __linux && __GLIBC__ >= 2
185	# define EV_USE_CLOCK_SYSCALL 1	220	# define EV_USE_CLOCK_SYSCALL 1
186	# else	221	# else
187	# define EV_USE_CLOCK_SYSCALL 0	222	# define EV_USE_CLOCK_SYSCALL 0
…		…
266	# else	301	# else
267	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
268	# endif	303	# endif
269	#endif	304	#endif
270		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
		308	# define EV_USE_SIGNALFD 1
		309	# else
		310	# define EV_USE_SIGNALFD 0
		311	# endif
		312	#endif
		313
271	#if 0 /* debugging */	314	#if 0 /* debugging */
272	# define EV_VERIFY 3	315	# define EV_VERIFY 3
273	# define EV_USE_4HEAP 1	316	# define EV_USE_4HEAP 1
274	# define EV_HEAP_CACHE_AT 1	317	# define EV_HEAP_CACHE_AT 1
275	#endif	318	#endif
…		…
282	# define EV_USE_4HEAP !EV_MINIMAL	325	# define EV_USE_4HEAP !EV_MINIMAL
283	#endif	326	#endif
284		327
285	#ifndef EV_HEAP_CACHE_AT	328	#ifndef EV_HEAP_CACHE_AT
286	# define EV_HEAP_CACHE_AT !EV_MINIMAL	329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
287	#endif
288
289	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
290
291	#ifndef CLOCK_MONOTONIC
292	# undef EV_USE_MONOTONIC
293	# define EV_USE_MONOTONIC 0
294	#endif
295
296	#ifndef CLOCK_REALTIME
297	# undef EV_USE_REALTIME
298	# define EV_USE_REALTIME 0
299	#endif
300
301	#if !EV_STAT_ENABLE
302	# undef EV_USE_INOTIFY
303	# define EV_USE_INOTIFY 0
304	#endif
305
306	#if !EV_USE_NANOSLEEP
307	# ifndef _WIN32
308	# include <sys/select.h>
309	# endif
310	#endif
311
312	#if EV_USE_INOTIFY
313	# include <sys/utsname.h>
314	# include <sys/statfs.h>
315	# include <sys/inotify.h>
316	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
317	# ifndef IN_DONT_FOLLOW
318	# undef EV_USE_INOTIFY
319	# define EV_USE_INOTIFY 0
320	# endif
321	#endif
322
323	#if EV_SELECT_IS_WINSOCKET
324	# include <winsock.h>
325	#endif	330	#endif
326		331
327	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
328	/* which makes programs even slower. might work on other unices, too. */	333	/* which makes programs even slower. might work on other unices, too. */
329	#if EV_USE_CLOCK_SYSCALL	334	#if EV_USE_CLOCK_SYSCALL
…		…
336	# undef EV_USE_CLOCK_SYSCALL	341	# undef EV_USE_CLOCK_SYSCALL
337	# define EV_USE_CLOCK_SYSCALL 0	342	# define EV_USE_CLOCK_SYSCALL 0
338	# endif	343	# endif
339	#endif	344	#endif
340		345
		346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
		347
		348	#ifndef CLOCK_MONOTONIC
		349	# undef EV_USE_MONOTONIC
		350	# define EV_USE_MONOTONIC 0
		351	#endif
		352
		353	#ifndef CLOCK_REALTIME
		354	# undef EV_USE_REALTIME
		355	# define EV_USE_REALTIME 0
		356	#endif
		357
		358	#if !EV_STAT_ENABLE
		359	# undef EV_USE_INOTIFY
		360	# define EV_USE_INOTIFY 0
		361	#endif
		362
		363	#if !EV_USE_NANOSLEEP
		364	# ifndef _WIN32
		365	# include <sys/select.h>
		366	# endif
		367	#endif
		368
		369	#if EV_USE_INOTIFY
		370	# include <sys/utsname.h>
		371	# include <sys/statfs.h>
		372	# include <sys/inotify.h>
		373	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		374	# ifndef IN_DONT_FOLLOW
		375	# undef EV_USE_INOTIFY
		376	# define EV_USE_INOTIFY 0
		377	# endif
		378	#endif
		379
		380	#if EV_SELECT_IS_WINSOCKET
		381	# include <winsock.h>
		382	#endif
		383
341	#if EV_USE_EVENTFD	384	#if EV_USE_EVENTFD
342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	385	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343	# include <stdint.h>	386	# include <stdint.h>
		387	# ifndef EFD_NONBLOCK
		388	# define EFD_NONBLOCK O_NONBLOCK
		389	# endif
		390	# ifndef EFD_CLOEXEC
		391	# define EFD_CLOEXEC O_CLOEXEC
		392	# endif
344	# ifdef __cplusplus	393	# ifdef __cplusplus
345	extern "C" {	394	extern "C" {
346	# endif	395	# endif
347	int eventfd (unsigned int initval, int flags);	396	int eventfd (unsigned int initval, int flags);
348	# ifdef __cplusplus	397	# ifdef __cplusplus
349	}	398	}
350	# endif	399	# endif
		400	#endif
		401
		402	#if EV_USE_SIGNALFD
		403	# include <sys/signalfd.h>
351	#endif	404	#endif
352		405
353	/**/	406	/**/
354		407
355	#if EV_VERIFY >= 3	408	#if EV_VERIFY >= 3
…		…
391	# define inline_speed static noinline	444	# define inline_speed static noinline
392	#else	445	#else
393	# define inline_speed static inline	446	# define inline_speed static inline
394	#endif	447	#endif
395		448
396	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	449	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		450
		451	#if EV_MINPRI == EV_MAXPRI
		452	# define ABSPRI(w) (((W)w), 0)
		453	#else
397	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	454	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		455	#endif
398		456
399	#define EMPTY /* required for microsofts broken pseudo-c compiler */	457	#define EMPTY /* required for microsofts broken pseudo-c compiler */
400	#define EMPTY2(a,b) /* used to suppress some warnings */	458	#define EMPTY2(a,b) /* used to suppress some warnings */
401		459
402	typedef ev_watcher *W;	460	typedef ev_watcher *W;
…		…
485	#define ev_malloc(size) ev_realloc (0, (size))	543	#define ev_malloc(size) ev_realloc (0, (size))
486	#define ev_free(ptr) ev_realloc ((ptr), 0)	544	#define ev_free(ptr) ev_realloc ((ptr), 0)
487		545
488	/*****************************************************************************/	546	/*****************************************************************************/
489		547
		548	/* set in reify when reification needed */
		549	#define EV_ANFD_REIFY 1
		550
490	/* file descriptor info structure */	551	/* file descriptor info structure */
491	typedef struct	552	typedef struct
492	{	553	{
493	WL head;	554	WL head;
494	unsigned char events; /* the events watched for */	555	unsigned char events; /* the events watched for */
495	unsigned char reify; /* flag set when this ANFD needs reification */	556	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	557	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497	unsigned char unused;	558	unsigned char unused;
498	#if EV_USE_EPOLL	559	#if EV_USE_EPOLL
499	unsigned int egen; /* generation counter to counter epoll bugs */	560	unsigned int egen; /* generation counter to counter epoll bugs */
500	#endif	561	#endif
…		…
562		623
563	static int ev_default_loop_ptr;	624	static int ev_default_loop_ptr;
564		625
565	#endif	626	#endif
566		627
		628	#if EV_MINIMAL < 2
		629	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		630	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		631	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		632	#else
		633	# define EV_RELEASE_CB (void)0
		634	# define EV_ACQUIRE_CB (void)0
		635	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		636	#endif
		637
		638	#define EVUNLOOP_RECURSE 0x80
		639
567	/*****************************************************************************/	640	/*****************************************************************************/
568		641
		642	#ifndef EV_HAVE_EV_TIME
569	ev_tstamp	643	ev_tstamp
570	ev_time (void)	644	ev_time (void)
571	{	645	{
572	#if EV_USE_REALTIME	646	#if EV_USE_REALTIME
573	if (expect_true (have_realtime))	647	if (expect_true (have_realtime))
…		…
580		654
581	struct timeval tv;	655	struct timeval tv;
582	gettimeofday (&tv, 0);	656	gettimeofday (&tv, 0);
583	return tv.tv_sec + tv.tv_usec * 1e-6;	657	return tv.tv_sec + tv.tv_usec * 1e-6;
584	}	658	}
		659	#endif
585		660
586	inline_size ev_tstamp	661	inline_size ev_tstamp
587	get_clock (void)	662	get_clock (void)
588	{	663	{
589	#if EV_USE_MONOTONIC	664	#if EV_USE_MONOTONIC
…		…
625		700
626	tv.tv_sec = (time_t)delay;	701	tv.tv_sec = (time_t)delay;
627	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	702	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
628		703
629	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	704	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
630	/* somehting nto guaranteed by newer posix versions, but guaranteed */	705	/* something not guaranteed by newer posix versions, but guaranteed */
631	/* by older ones */	706	/* by older ones */
632	select (0, 0, 0, 0, &tv);	707	select (0, 0, 0, 0, &tv);
633	#endif	708	#endif
634	}	709	}
635	}	710	}
…		…
743	}	818	}
744		819
745	/*****************************************************************************/	820	/*****************************************************************************/
746		821
747	inline_speed void	822	inline_speed void
748	fd_event (EV_P_ int fd, int revents)	823	fd_event_nc (EV_P_ int fd, int revents)
749	{	824	{
750	ANFD *anfd = anfds + fd;	825	ANFD *anfd = anfds + fd;
751	ev_io *w;	826	ev_io *w;
752		827
753	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	828	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
757	if (ev)	832	if (ev)
758	ev_feed_event (EV_A_ (W)w, ev);	833	ev_feed_event (EV_A_ (W)w, ev);
759	}	834	}
760	}	835	}
761		836
		837	/* do not submit kernel events for fds that have reify set */
		838	/* because that means they changed while we were polling for new events */
		839	inline_speed void
		840	fd_event (EV_P_ int fd, int revents)
		841	{
		842	ANFD *anfd = anfds + fd;
		843
		844	if (expect_true (!anfd->reify))
		845	fd_event_nc (EV_A_ fd, revents);
		846	}
		847
762	void	848	void
763	ev_feed_fd_event (EV_P_ int fd, int revents)	849	ev_feed_fd_event (EV_P_ int fd, int revents)
764	{	850	{
765	if (fd >= 0 && fd < anfdmax)	851	if (fd >= 0 && fd < anfdmax)
766	fd_event (EV_A_ fd, revents);	852	fd_event_nc (EV_A_ fd, revents);
767	}	853	}
768		854
769	/* make sure the external fd watch events are in-sync */	855	/* make sure the external fd watch events are in-sync */
770	/* with the kernel/libev internal state */	856	/* with the kernel/libev internal state */
771	inline_size void	857	inline_size void
…		…
871		957
872	for (fd = anfdmax; fd--; )	958	for (fd = anfdmax; fd--; )
873	if (anfds [fd].events)	959	if (anfds [fd].events)
874	{	960	{
875	fd_kill (EV_A_ fd);	961	fd_kill (EV_A_ fd);
876	return;	962	break;
877	}	963	}
878	}	964	}
879		965
880	/* usually called after fork if backend needs to re-arm all fds from scratch */	966	/* usually called after fork if backend needs to re-arm all fds from scratch */
881	static void noinline	967	static void noinline
…		…
886	for (fd = 0; fd < anfdmax; ++fd)	972	for (fd = 0; fd < anfdmax; ++fd)
887	if (anfds [fd].events)	973	if (anfds [fd].events)
888	{	974	{
889	anfds [fd].events = 0;	975	anfds [fd].events = 0;
890	anfds [fd].emask = 0;	976	anfds [fd].emask = 0;
891	fd_change (EV_A_ fd, EV__IOFDSET \| 1);	977	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
892	}	978	}
893	}	979	}
894		980
895	/*****************************************************************************/	981	/*****************************************************************************/
896		982
…		…
1040	/*****************************************************************************/	1126	/*****************************************************************************/
1041		1127
1042	/* associate signal watchers to a signal signal */	1128	/* associate signal watchers to a signal signal */
1043	typedef struct	1129	typedef struct
1044	{	1130	{
		1131	EV_ATOMIC_T pending;
		1132	#if EV_MULTIPLICITY
		1133	EV_P;
		1134	#endif
1045	WL head;	1135	WL head;
1046	EV_ATOMIC_T gotsig;
1047	} ANSIG;	1136	} ANSIG;
1048		1137
1049	static ANSIG *signals;	1138	static ANSIG signals [EV_NSIG - 1];
1050	static int signalmax;
1051
1052	static EV_ATOMIC_T gotsig;
1053		1139
1054	/*****************************************************************************/	1140	/*****************************************************************************/
1055		1141
1056	/* used to prepare libev internal fd's */	1142	/* used to prepare libev internal fd's */
1057	/* this is not fork-safe */	1143	/* this is not fork-safe */
…		…
1071	evpipe_init (EV_P)	1157	evpipe_init (EV_P)
1072	{	1158	{
1073	if (!ev_is_active (&pipe_w))	1159	if (!ev_is_active (&pipe_w))
1074	{	1160	{
1075	#if EV_USE_EVENTFD	1161	#if EV_USE_EVENTFD
		1162	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
		1163	if (evfd < 0 && errno == EINVAL)
1076	if ((evfd = eventfd (0, 0)) >= 0)	1164	evfd = eventfd (0, 0);
		1165
		1166	if (evfd >= 0)
1077	{	1167	{
1078	evpipe [0] = -1;	1168	evpipe [0] = -1;
1079	fd_intern (evfd);	1169	fd_intern (evfd); /* doing it twice doesn't hurt */
1080	ev_io_set (&pipe_w, evfd, EV_READ);	1170	ev_io_set (&pipe_w, evfd, EV_READ);
1081	}	1171	}
1082	else	1172	else
1083	#endif	1173	#endif
1084	{	1174	{
…		…
1121	/* called whenever the libev signal pipe */	1211	/* called whenever the libev signal pipe */
1122	/* got some events (signal, async) */	1212	/* got some events (signal, async) */
1123	static void	1213	static void
1124	pipecb (EV_P_ ev_io *iow, int revents)	1214	pipecb (EV_P_ ev_io *iow, int revents)
1125	{	1215	{
		1216	int i;
		1217
1126	#if EV_USE_EVENTFD	1218	#if EV_USE_EVENTFD
1127	if (evfd >= 0)	1219	if (evfd >= 0)
1128	{	1220	{
1129	uint64_t counter;	1221	uint64_t counter;
1130	read (evfd, &counter, sizeof (uint64_t));	1222	read (evfd, &counter, sizeof (uint64_t));
…		…
1134	{	1226	{
1135	char dummy;	1227	char dummy;
1136	read (evpipe [0], &dummy, 1);	1228	read (evpipe [0], &dummy, 1);
1137	}	1229	}
1138		1230
1139	if (gotsig && ev_is_default_loop (EV_A))	1231	if (sig_pending)
1140	{	1232	{
1141	int signum;	1233	sig_pending = 0;
1142	gotsig = 0;
1143		1234
1144	for (signum = signalmax; signum--; )	1235	for (i = EV_NSIG - 1; i--; )
1145	if (signals [signum].gotsig)	1236	if (expect_false (signals [i].pending))
1146	ev_feed_signal_event (EV_A_ signum + 1);	1237	ev_feed_signal_event (EV_A_ i + 1);
1147	}	1238	}
1148		1239
1149	#if EV_ASYNC_ENABLE	1240	#if EV_ASYNC_ENABLE
1150	if (gotasync)	1241	if (async_pending)
1151	{	1242	{
1152	int i;	1243	async_pending = 0;
1153	gotasync = 0;
1154		1244
1155	for (i = asynccnt; i--; )	1245	for (i = asynccnt; i--; )
1156	if (asyncs [i]->sent)	1246	if (asyncs [i]->sent)
1157	{	1247	{
1158	asyncs [i]->sent = 0;	1248	asyncs [i]->sent = 0;
…		…
1166		1256
1167	static void	1257	static void
1168	ev_sighandler (int signum)	1258	ev_sighandler (int signum)
1169	{	1259	{
1170	#if EV_MULTIPLICITY	1260	#if EV_MULTIPLICITY
1171	struct ev_loop *loop = &default_loop_struct;	1261	EV_P = signals [signum - 1].loop;
1172	#endif	1262	#endif
1173		1263
1174	#if _WIN32	1264	#if _WIN32
1175	signal (signum, ev_sighandler);	1265	signal (signum, ev_sighandler);
1176	#endif	1266	#endif
1177		1267
1178	signals [signum - 1].gotsig = 1;	1268	signals [signum - 1].pending = 1;
1179	evpipe_write (EV_A_ &gotsig);	1269	evpipe_write (EV_A_ &sig_pending);
1180	}	1270	}
1181		1271
1182	void noinline	1272	void noinline
1183	ev_feed_signal_event (EV_P_ int signum)	1273	ev_feed_signal_event (EV_P_ int signum)
1184	{	1274	{
1185	WL w;	1275	WL w;
1186		1276
		1277	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))
		1278	return;
		1279
		1280	--signum;
		1281
1187	#if EV_MULTIPLICITY	1282	#if EV_MULTIPLICITY
1188	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1283	/* it is permissible to try to feed a signal to the wrong loop */
1189	#endif	1284	/* or, likely more useful, feeding a signal nobody is waiting for */
1190		1285
1191	--signum;	1286	if (expect_false (signals [signum].loop != EV_A))
1192
1193	if (signum < 0 \|\| signum >= signalmax)
1194	return;	1287	return;
		1288	#endif
1195		1289
1196	signals [signum].gotsig = 0;	1290	signals [signum].pending = 0;
1197		1291
1198	for (w = signals [signum].head; w; w = w->next)	1292	for (w = signals [signum].head; w; w = w->next)
1199	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1293	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1200	}	1294	}
		1295
		1296	#if EV_USE_SIGNALFD
		1297	static void
		1298	sigfdcb (EV_P_ ev_io *iow, int revents)
		1299	{
		1300	struct signalfd_siginfo si[2], sip; / these structs are big */
		1301
		1302	for (;;)
		1303	{
		1304	ssize_t res = read (sigfd, si, sizeof (si));
		1305
		1306	/* not ISO-C, as res might be -1, but works with SuS */
		1307	for (sip = si; (char )sip < (char )si + res; ++sip)
		1308	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1309
		1310	if (res < (ssize_t)sizeof (si))
		1311	break;
		1312	}
		1313	}
		1314	#endif
1201		1315
1202	/*****************************************************************************/	1316	/*****************************************************************************/
1203		1317
1204	static WL childs [EV_PID_HASHSIZE];	1318	static WL childs [EV_PID_HASHSIZE];
1205		1319
…		…
1350	ev_backend (EV_P)	1464	ev_backend (EV_P)
1351	{	1465	{
1352	return backend;	1466	return backend;
1353	}	1467	}
1354		1468
		1469	#if EV_MINIMAL < 2
1355	unsigned int	1470	unsigned int
1356	ev_loop_count (EV_P)	1471	ev_loop_count (EV_P)
1357	{	1472	{
1358	return loop_count;	1473	return loop_count;
1359	}	1474	}
1360		1475
		1476	unsigned int
		1477	ev_loop_depth (EV_P)
		1478	{
		1479	return loop_depth;
		1480	}
		1481
1361	void	1482	void
1362	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1483	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1363	{	1484	{
1364	io_blocktime = interval;	1485	io_blocktime = interval;
1365	}	1486	}
…		…
1367	void	1488	void
1368	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1489	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1369	{	1490	{
1370	timeout_blocktime = interval;	1491	timeout_blocktime = interval;
1371	}	1492	}
		1493
		1494	void
		1495	ev_set_userdata (EV_P_ void *data)
		1496	{
		1497	userdata = data;
		1498	}
		1499
		1500	void *
		1501	ev_userdata (EV_P)
		1502	{
		1503	return userdata;
		1504	}
		1505
		1506	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1507	{
		1508	invoke_cb = invoke_pending_cb;
		1509	}
		1510
		1511	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
		1512	{
		1513	release_cb = release;
		1514	acquire_cb = acquire;
		1515	}
		1516	#endif
1372		1517
1373	/* initialise a loop structure, must be zero-initialised */	1518	/* initialise a loop structure, must be zero-initialised */
1374	static void noinline	1519	static void noinline
1375	loop_init (EV_P_ unsigned int flags)	1520	loop_init (EV_P_ unsigned int flags)
1376	{	1521	{
…		…
1394	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1395	have_monotonic = 1;	1540	have_monotonic = 1;
1396	}	1541	}
1397	#endif	1542	#endif
1398		1543
		1544	/* pid check not overridable via env */
		1545	#ifndef _WIN32
		1546	if (flags & EVFLAG_FORKCHECK)
		1547	curpid = getpid ();
		1548	#endif
		1549
		1550	if (!(flags & EVFLAG_NOENV)
		1551	&& !enable_secure ()
		1552	&& getenv ("LIBEV_FLAGS"))
		1553	flags = atoi (getenv ("LIBEV_FLAGS"));
		1554
1399	ev_rt_now = ev_time ();	1555	ev_rt_now = ev_time ();
1400	mn_now = get_clock ();	1556	mn_now = get_clock ();
1401	now_floor = mn_now;	1557	now_floor = mn_now;
1402	rtmn_diff = ev_rt_now - mn_now;	1558	rtmn_diff = ev_rt_now - mn_now;
		1559	#if EV_MINIMAL < 2
		1560	invoke_cb = ev_invoke_pending;
		1561	#endif
1403		1562
1404	io_blocktime = 0.;	1563	io_blocktime = 0.;
1405	timeout_blocktime = 0.;	1564	timeout_blocktime = 0.;
1406	backend = 0;	1565	backend = 0;
1407	backend_fd = -1;	1566	backend_fd = -1;
1408	gotasync = 0;	1567	sig_pending = 0;
		1568	#if EV_ASYNC_ENABLE
		1569	async_pending = 0;
		1570	#endif
1409	#if EV_USE_INOTIFY	1571	#if EV_USE_INOTIFY
1410	fs_fd = -2;	1572	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1411	#endif	1573	#endif
1412		1574	#if EV_USE_SIGNALFD
1413	/* pid check not overridable via env */	1575	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1414	#ifndef _WIN32
1415	if (flags & EVFLAG_FORKCHECK)
1416	curpid = getpid ();
1417	#endif	1576	#endif
1418
1419	if (!(flags & EVFLAG_NOENV)
1420	&& !enable_secure ()
1421	&& getenv ("LIBEV_FLAGS"))
1422	flags = atoi (getenv ("LIBEV_FLAGS"));
1423		1577
1424	if (!(flags & 0x0000ffffU))	1578	if (!(flags & 0x0000ffffU))
1425	flags \|= ev_recommended_backends ();	1579	flags \|= ev_recommended_backends ();
1426		1580
1427	#if EV_USE_PORT	1581	#if EV_USE_PORT
…		…
1453	{	1607	{
1454	int i;	1608	int i;
1455		1609
1456	if (ev_is_active (&pipe_w))	1610	if (ev_is_active (&pipe_w))
1457	{	1611	{
1458	ev_ref (EV_A); /* signal watcher */	1612	/ev_ref (EV_A);/
1459	ev_io_stop (EV_A_ &pipe_w);	1613	/ev_io_stop (EV_A_ &pipe_w);/
1460		1614
1461	#if EV_USE_EVENTFD	1615	#if EV_USE_EVENTFD
1462	if (evfd >= 0)	1616	if (evfd >= 0)
1463	close (evfd);	1617	close (evfd);
1464	#endif	1618	#endif
…		…
1468	close (evpipe [0]);	1622	close (evpipe [0]);
1469	close (evpipe [1]);	1623	close (evpipe [1]);
1470	}	1624	}
1471	}	1625	}
1472		1626
		1627	#if EV_USE_SIGNALFD
		1628	if (ev_is_active (&sigfd_w))
		1629	{
		1630	/ev_ref (EV_A);/
		1631	/ev_io_stop (EV_A_ &sigfd_w);/
		1632
		1633	close (sigfd);
		1634	}
		1635	#endif
		1636
1473	#if EV_USE_INOTIFY	1637	#if EV_USE_INOTIFY
1474	if (fs_fd >= 0)	1638	if (fs_fd >= 0)
1475	close (fs_fd);	1639	close (fs_fd);
1476	#endif	1640	#endif
1477		1641
…		…
1500	#if EV_IDLE_ENABLE	1664	#if EV_IDLE_ENABLE
1501	array_free (idle, [i]);	1665	array_free (idle, [i]);
1502	#endif	1666	#endif
1503	}	1667	}
1504		1668
1505	ev_free (anfds); anfdmax = 0;	1669	ev_free (anfds); anfds = 0; anfdmax = 0;
1506		1670
1507	/* have to use the microsoft-never-gets-it-right macro */	1671	/* have to use the microsoft-never-gets-it-right macro */
1508	array_free (rfeed, EMPTY);	1672	array_free (rfeed, EMPTY);
1509	array_free (fdchange, EMPTY);	1673	array_free (fdchange, EMPTY);
1510	array_free (timer, EMPTY);	1674	array_free (timer, EMPTY);
…		…
1545		1709
1546	if (ev_is_active (&pipe_w))	1710	if (ev_is_active (&pipe_w))
1547	{	1711	{
1548	/* this "locks" the handlers against writing to the pipe */	1712	/* this "locks" the handlers against writing to the pipe */
1549	/* while we modify the fd vars */	1713	/* while we modify the fd vars */
1550	gotsig = 1;	1714	sig_pending = 1;
1551	#if EV_ASYNC_ENABLE	1715	#if EV_ASYNC_ENABLE
1552	gotasync = 1;	1716	async_pending = 1;
1553	#endif	1717	#endif
1554		1718
1555	ev_ref (EV_A);	1719	ev_ref (EV_A);
1556	ev_io_stop (EV_A_ &pipe_w);	1720	ev_io_stop (EV_A_ &pipe_w);
1557		1721
…		…
1577	#if EV_MULTIPLICITY	1741	#if EV_MULTIPLICITY
1578		1742
1579	struct ev_loop *	1743	struct ev_loop *
1580	ev_loop_new (unsigned int flags)	1744	ev_loop_new (unsigned int flags)
1581	{	1745	{
1582	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1746	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1583		1747
1584	memset (loop, 0, sizeof (struct ev_loop));	1748	memset (EV_A, 0, sizeof (struct ev_loop));
1585
1586	loop_init (EV_A_ flags);	1749	loop_init (EV_A_ flags);
1587		1750
1588	if (ev_backend (EV_A))	1751	if (ev_backend (EV_A))
1589	return loop;	1752	return EV_A;
1590		1753
1591	return 0;	1754	return 0;
1592	}	1755	}
1593		1756
1594	void	1757	void
…		…
1601	void	1764	void
1602	ev_loop_fork (EV_P)	1765	ev_loop_fork (EV_P)
1603	{	1766	{
1604	postfork = 1; /* must be in line with ev_default_fork */	1767	postfork = 1; /* must be in line with ev_default_fork */
1605	}	1768	}
		1769	#endif /* multiplicity */
1606		1770
1607	#if EV_VERIFY	1771	#if EV_VERIFY
1608	static void noinline	1772	static void noinline
1609	verify_watcher (EV_P_ W w)	1773	verify_watcher (EV_P_ W w)
1610	{	1774	{
…		…
1638	verify_watcher (EV_A_ ws [cnt]);	1802	verify_watcher (EV_A_ ws [cnt]);
1639	}	1803	}
1640	}	1804	}
1641	#endif	1805	#endif
1642		1806
		1807	#if EV_MINIMAL < 2
1643	void	1808	void
1644	ev_loop_verify (EV_P)	1809	ev_loop_verify (EV_P)
1645	{	1810	{
1646	#if EV_VERIFY	1811	#if EV_VERIFY
1647	int i;	1812	int i;
…		…
1696	assert (checkmax >= checkcnt);	1861	assert (checkmax >= checkcnt);
1697	array_verify (EV_A_ (W *)checks, checkcnt);	1862	array_verify (EV_A_ (W *)checks, checkcnt);
1698		1863
1699	# if 0	1864	# if 0
1700	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1865	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
1701	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1866	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1702	# endif	1867	# endif
1703	#endif	1868	#endif
1704	}	1869	}
1705		1870	#endif
1706	#endif /* multiplicity */
1707		1871
1708	#if EV_MULTIPLICITY	1872	#if EV_MULTIPLICITY
1709	struct ev_loop *	1873	struct ev_loop *
1710	ev_default_loop_init (unsigned int flags)	1874	ev_default_loop_init (unsigned int flags)
1711	#else	1875	#else
…		…
1714	#endif	1878	#endif
1715	{	1879	{
1716	if (!ev_default_loop_ptr)	1880	if (!ev_default_loop_ptr)
1717	{	1881	{
1718	#if EV_MULTIPLICITY	1882	#if EV_MULTIPLICITY
1719	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1883	EV_P = ev_default_loop_ptr = &default_loop_struct;
1720	#else	1884	#else
1721	ev_default_loop_ptr = 1;	1885	ev_default_loop_ptr = 1;
1722	#endif	1886	#endif
1723		1887
1724	loop_init (EV_A_ flags);	1888	loop_init (EV_A_ flags);
…		…
1741		1905
1742	void	1906	void
1743	ev_default_destroy (void)	1907	ev_default_destroy (void)
1744	{	1908	{
1745	#if EV_MULTIPLICITY	1909	#if EV_MULTIPLICITY
1746	struct ev_loop *loop = ev_default_loop_ptr;	1910	EV_P = ev_default_loop_ptr;
1747	#endif	1911	#endif
1748		1912
1749	ev_default_loop_ptr = 0;	1913	ev_default_loop_ptr = 0;
1750		1914
1751	#ifndef _WIN32	1915	#ifndef _WIN32
…		…
1758		1922
1759	void	1923	void
1760	ev_default_fork (void)	1924	ev_default_fork (void)
1761	{	1925	{
1762	#if EV_MULTIPLICITY	1926	#if EV_MULTIPLICITY
1763	struct ev_loop *loop = ev_default_loop_ptr;	1927	EV_P = ev_default_loop_ptr;
1764	#endif	1928	#endif
1765		1929
1766	postfork = 1; /* must be in line with ev_loop_fork */	1930	postfork = 1; /* must be in line with ev_loop_fork */
1767	}	1931	}
1768		1932
…		…
1772	ev_invoke (EV_P_ void *w, int revents)	1936	ev_invoke (EV_P_ void *w, int revents)
1773	{	1937	{
1774	EV_CB_INVOKE ((W)w, revents);	1938	EV_CB_INVOKE ((W)w, revents);
1775	}	1939	}
1776		1940
1777	inline_speed void	1941	unsigned int
1778	call_pending (EV_P)	1942	ev_pending_count (EV_P)
		1943	{
		1944	int pri;
		1945	unsigned int count = 0;
		1946
		1947	for (pri = NUMPRI; pri--; )
		1948	count += pendingcnt [pri];
		1949
		1950	return count;
		1951	}
		1952
		1953	void noinline
		1954	ev_invoke_pending (EV_P)
1779	{	1955	{
1780	int pri;	1956	int pri;
1781		1957
1782	for (pri = NUMPRI; pri--; )	1958	for (pri = NUMPRI; pri--; )
1783	while (pendingcnt [pri])	1959	while (pendingcnt [pri])
…		…
2018		2194
2019	mn_now = ev_rt_now;	2195	mn_now = ev_rt_now;
2020	}	2196	}
2021	}	2197	}
2022		2198
2023	static int loop_done;
2024
2025	void	2199	void
2026	ev_loop (EV_P_ int flags)	2200	ev_loop (EV_P_ int flags)
2027	{	2201	{
		2202	#if EV_MINIMAL < 2
		2203	++loop_depth;
		2204	#endif
		2205
		2206	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2207
2028	loop_done = EVUNLOOP_CANCEL;	2208	loop_done = EVUNLOOP_CANCEL;
2029		2209
2030	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2210	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2031		2211
2032	do	2212	do
2033	{	2213	{
2034	#if EV_VERIFY >= 2	2214	#if EV_VERIFY >= 2
2035	ev_loop_verify (EV_A);	2215	ev_loop_verify (EV_A);
…		…
2048	/* we might have forked, so queue fork handlers */	2228	/* we might have forked, so queue fork handlers */
2049	if (expect_false (postfork))	2229	if (expect_false (postfork))
2050	if (forkcnt)	2230	if (forkcnt)
2051	{	2231	{
2052	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2232	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2053	call_pending (EV_A);	2233	EV_INVOKE_PENDING;
2054	}	2234	}
2055	#endif	2235	#endif
2056		2236
2057	/* queue prepare watchers (and execute them) */	2237	/* queue prepare watchers (and execute them) */
2058	if (expect_false (preparecnt))	2238	if (expect_false (preparecnt))
2059	{	2239	{
2060	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2240	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2061	call_pending (EV_A);	2241	EV_INVOKE_PENDING;
2062	}	2242	}
		2243
		2244	if (expect_false (loop_done))
		2245	break;
2063		2246
2064	/* we might have forked, so reify kernel state if necessary */	2247	/* we might have forked, so reify kernel state if necessary */
2065	if (expect_false (postfork))	2248	if (expect_false (postfork))
2066	loop_fork (EV_A);	2249	loop_fork (EV_A);
2067		2250
…		…
2073	ev_tstamp waittime = 0.;	2256	ev_tstamp waittime = 0.;
2074	ev_tstamp sleeptime = 0.;	2257	ev_tstamp sleeptime = 0.;
2075		2258
2076	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))	2259	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
2077	{	2260	{
		2261	/* remember old timestamp for io_blocktime calculation */
		2262	ev_tstamp prev_mn_now = mn_now;
		2263
2078	/* update time to cancel out callback processing overhead */	2264	/* update time to cancel out callback processing overhead */
2079	time_update (EV_A_ 1e100);	2265	time_update (EV_A_ 1e100);
2080		2266
2081	waittime = MAX_BLOCKTIME;	2267	waittime = MAX_BLOCKTIME;
2082		2268
…		…
2092	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2278	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2093	if (waittime > to) waittime = to;	2279	if (waittime > to) waittime = to;
2094	}	2280	}
2095	#endif	2281	#endif
2096		2282
		2283	/* don't let timeouts decrease the waittime below timeout_blocktime */
2097	if (expect_false (waittime < timeout_blocktime))	2284	if (expect_false (waittime < timeout_blocktime))
2098	waittime = timeout_blocktime;	2285	waittime = timeout_blocktime;
2099		2286
2100	sleeptime = waittime - backend_fudge;	2287	/* extra check because io_blocktime is commonly 0 */
2101
2102	if (expect_true (sleeptime > io_blocktime))	2288	if (expect_false (io_blocktime))
2103	sleeptime = io_blocktime;
2104
2105	if (sleeptime)
2106	{	2289	{
		2290	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2291
		2292	if (sleeptime > waittime - backend_fudge)
		2293	sleeptime = waittime - backend_fudge;
		2294
		2295	if (expect_true (sleeptime > 0.))
		2296	{
2107	ev_sleep (sleeptime);	2297	ev_sleep (sleeptime);
2108	waittime -= sleeptime;	2298	waittime -= sleeptime;
		2299	}
2109	}	2300	}
2110	}	2301	}
2111		2302
		2303	#if EV_MINIMAL < 2
2112	++loop_count;	2304	++loop_count;
		2305	#endif
		2306	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2113	backend_poll (EV_A_ waittime);	2307	backend_poll (EV_A_ waittime);
		2308	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2114		2309
2115	/* update ev_rt_now, do magic */	2310	/* update ev_rt_now, do magic */
2116	time_update (EV_A_ waittime + sleeptime);	2311	time_update (EV_A_ waittime + sleeptime);
2117	}	2312	}
2118		2313
…		…
2129		2324
2130	/* queue check watchers, to be executed first */	2325	/* queue check watchers, to be executed first */
2131	if (expect_false (checkcnt))	2326	if (expect_false (checkcnt))
2132	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2327	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2133		2328
2134	call_pending (EV_A);	2329	EV_INVOKE_PENDING;
2135	}	2330	}
2136	while (expect_true (	2331	while (expect_true (
2137	activecnt	2332	activecnt
2138	&& !loop_done	2333	&& !loop_done
2139	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))	2334	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
2140	));	2335	));
2141		2336
2142	if (loop_done == EVUNLOOP_ONE)	2337	if (loop_done == EVUNLOOP_ONE)
2143	loop_done = EVUNLOOP_CANCEL;	2338	loop_done = EVUNLOOP_CANCEL;
		2339
		2340	#if EV_MINIMAL < 2
		2341	--loop_depth;
		2342	#endif
2144	}	2343	}
2145		2344
2146	void	2345	void
2147	ev_unloop (EV_P_ int how)	2346	ev_unloop (EV_P_ int how)
2148	{	2347	{
…		…
2199	inline_size void	2398	inline_size void
2200	wlist_del (WL *head, WL elem)	2399	wlist_del (WL *head, WL elem)
2201	{	2400	{
2202	while (*head)	2401	while (*head)
2203	{	2402	{
2204	if (*head == elem)	2403	if (expect_true (*head == elem))
2205	{	2404	{
2206	*head = elem->next;	2405	*head = elem->next;
2207	return;	2406	break;
2208	}	2407	}
2209		2408
2210	head = &(*head)->next;	2409	head = &(*head)->next;
2211	}	2410	}
2212	}	2411	}
…		…
2240	}	2439	}
2241		2440
2242	inline_size void	2441	inline_size void
2243	pri_adjust (EV_P_ W w)	2442	pri_adjust (EV_P_ W w)
2244	{	2443	{
2245	int pri = w->priority;	2444	int pri = ev_priority (w);
2246	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2445	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2247	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2446	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2248	w->priority = pri;	2447	ev_set_priority (w, pri);
2249	}	2448	}
2250		2449
2251	inline_speed void	2450	inline_speed void
2252	ev_start (EV_P_ W w, int active)	2451	ev_start (EV_P_ W w, int active)
2253	{	2452	{
…		…
2280		2479
2281	ev_start (EV_A_ (W)w, 1);	2480	ev_start (EV_A_ (W)w, 1);
2282	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2481	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2283	wlist_add (&anfds[fd].head, (WL)w);	2482	wlist_add (&anfds[fd].head, (WL)w);
2284		2483
2285	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| 1);	2484	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| EV_ANFD_REIFY);
2286	w->events &= ~EV__IOFDSET;	2485	w->events &= ~EV__IOFDSET;
2287		2486
2288	EV_FREQUENT_CHECK;	2487	EV_FREQUENT_CHECK;
2289	}	2488	}
2290		2489
…		…
2384	}	2583	}
2385		2584
2386	EV_FREQUENT_CHECK;	2585	EV_FREQUENT_CHECK;
2387	}	2586	}
2388		2587
		2588	ev_tstamp
		2589	ev_timer_remaining (EV_P_ ev_timer *w)
		2590	{
		2591	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2592	}
		2593
2389	#if EV_PERIODIC_ENABLE	2594	#if EV_PERIODIC_ENABLE
2390	void noinline	2595	void noinline
2391	ev_periodic_start (EV_P_ ev_periodic *w)	2596	ev_periodic_start (EV_P_ ev_periodic *w)
2392	{	2597	{
2393	if (expect_false (ev_is_active (w)))	2598	if (expect_false (ev_is_active (w)))
…		…
2460	#endif	2665	#endif
2461		2666
2462	void noinline	2667	void noinline
2463	ev_signal_start (EV_P_ ev_signal *w)	2668	ev_signal_start (EV_P_ ev_signal *w)
2464	{	2669	{
2465	#if EV_MULTIPLICITY
2466	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2467	#endif
2468	if (expect_false (ev_is_active (w)))	2670	if (expect_false (ev_is_active (w)))
2469	return;	2671	return;
2470		2672
2471	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2673	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2472		2674
2473	evpipe_init (EV_A);	2675	#if EV_MULTIPLICITY
		2676	assert (("libev: a signal must not be attached to two different loops",
		2677	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
2474		2678
2475	EV_FREQUENT_CHECK;	2679	signals [w->signum - 1].loop = EV_A;
		2680	#endif
2476		2681
		2682	EV_FREQUENT_CHECK;
		2683
		2684	#if EV_USE_SIGNALFD
		2685	if (sigfd == -2)
2477	{	2686	{
2478	#ifndef _WIN32	2687	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK \| SFD_CLOEXEC);
2479	sigset_t full, prev;	2688	if (sigfd < 0 && errno == EINVAL)
2480	sigfillset (&full);	2689	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2481	sigprocmask (SIG_SETMASK, &full, &prev);
2482	#endif
2483		2690
2484	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2691	if (sigfd >= 0)
		2692	{
		2693	fd_intern (sigfd); /* doing it twice will not hurt */
2485		2694
2486	#ifndef _WIN32	2695	sigemptyset (&sigfd_set);
2487	sigprocmask (SIG_SETMASK, &prev, 0);	2696
2488	#endif	2697	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2698	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2699	ev_io_start (EV_A_ &sigfd_w);
		2700	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2701	}
2489	}	2702	}
		2703
		2704	if (sigfd >= 0)
		2705	{
		2706	/* TODO: check .head */
		2707	sigaddset (&sigfd_set, w->signum);
		2708	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2709
		2710	signalfd (sigfd, &sigfd_set, 0);
		2711	}
		2712	#endif
2490		2713
2491	ev_start (EV_A_ (W)w, 1);	2714	ev_start (EV_A_ (W)w, 1);
2492	wlist_add (&signals [w->signum - 1].head, (WL)w);	2715	wlist_add (&signals [w->signum - 1].head, (WL)w);
2493		2716
2494	if (!((WL)w)->next)	2717	if (!((WL)w)->next)
		2718	# if EV_USE_SIGNALFD
		2719	if (sigfd < 0) /TODO/
		2720	# endif
2495	{	2721	{
2496	#if _WIN32	2722	# if _WIN32
2497	signal (w->signum, ev_sighandler);	2723	signal (w->signum, ev_sighandler);
2498	#else	2724	# else
2499	struct sigaction sa;	2725	struct sigaction sa;
		2726
		2727	evpipe_init (EV_A);
		2728
2500	sa.sa_handler = ev_sighandler;	2729	sa.sa_handler = ev_sighandler;
2501	sigfillset (&sa.sa_mask);	2730	sigfillset (&sa.sa_mask);
2502	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2731	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2503	sigaction (w->signum, &sa, 0);	2732	sigaction (w->signum, &sa, 0);
		2733
		2734	sigemptyset (&sa.sa_mask);
		2735	sigaddset (&sa.sa_mask, w->signum);
		2736	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2504	#endif	2737	#endif
2505	}	2738	}
2506		2739
2507	EV_FREQUENT_CHECK;	2740	EV_FREQUENT_CHECK;
2508	}	2741	}
2509		2742
2510	void noinline	2743	void noinline
…		…
2518		2751
2519	wlist_del (&signals [w->signum - 1].head, (WL)w);	2752	wlist_del (&signals [w->signum - 1].head, (WL)w);
2520	ev_stop (EV_A_ (W)w);	2753	ev_stop (EV_A_ (W)w);
2521		2754
2522	if (!signals [w->signum - 1].head)	2755	if (!signals [w->signum - 1].head)
		2756	{
		2757	#if EV_MULTIPLICITY
		2758	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2759	#endif
		2760	#if EV_USE_SIGNALFD
		2761	if (sigfd >= 0)
		2762	{
		2763	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2764	sigdelset (&sigfd_set, w->signum);
		2765	signalfd (sigfd, &sigfd_set, 0);
		2766	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2767	/TODO: maybe unblock signal? /
		2768	}
		2769	else
		2770	#endif
2523	signal (w->signum, SIG_DFL);	2771	signal (w->signum, SIG_DFL);
		2772	}
2524		2773
2525	EV_FREQUENT_CHECK;	2774	EV_FREQUENT_CHECK;
2526	}	2775	}
2527		2776
2528	void	2777	void
…		…
3008	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3257	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3009	{	3258	{
3010	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));	3259	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
3011		3260
3012	{	3261	{
3013	struct ev_loop *loop = w->other;	3262	EV_P = w->other;
3014		3263
3015	while (fdchangecnt)	3264	while (fdchangecnt)
3016	{	3265	{
3017	fd_reify (EV_A);	3266	fd_reify (EV_A);
3018	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3267	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3026	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));	3275	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
3027		3276
3028	ev_embed_stop (EV_A_ w);	3277	ev_embed_stop (EV_A_ w);
3029		3278
3030	{	3279	{
3031	struct ev_loop *loop = w->other;	3280	EV_P = w->other;
3032		3281
3033	ev_loop_fork (EV_A);	3282	ev_loop_fork (EV_A);
3034	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3283	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3035	}	3284	}
3036		3285
…		…
3050	{	3299	{
3051	if (expect_false (ev_is_active (w)))	3300	if (expect_false (ev_is_active (w)))
3052	return;	3301	return;
3053		3302
3054	{	3303	{
3055	struct ev_loop *loop = w->other;	3304	EV_P = w->other;
3056	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3305	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3057	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3306	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3058	}	3307	}
3059		3308
3060	EV_FREQUENT_CHECK;	3309	EV_FREQUENT_CHECK;
…		…
3172		3421
3173	void	3422	void
3174	ev_async_send (EV_P_ ev_async *w)	3423	ev_async_send (EV_P_ ev_async *w)
3175	{	3424	{
3176	w->sent = 1;	3425	w->sent = 1;
3177	evpipe_write (EV_A_ &gotasync);	3426	evpipe_write (EV_A_ &async_pending);
3178	}	3427	}
3179	#endif	3428	#endif
3180		3429
3181	/*****************************************************************************/	3430	/*****************************************************************************/
3182		3431
…		…
3331	if (types & EV_CHECK)	3580	if (types & EV_CHECK)
3332	for (i = checkcnt; i--; )	3581	for (i = checkcnt; i--; )
3333	cb (EV_A_ EV_CHECK, checks [i]);	3582	cb (EV_A_ EV_CHECK, checks [i]);
3334		3583
3335	if (types & EV_SIGNAL)	3584	if (types & EV_SIGNAL)
3336	for (i = 0; i < signalmax; ++i)	3585	for (i = 0; i < EV_NSIG - 1; ++i)
3337	for (wl = signals [i].head; wl; )	3586	for (wl = signals [i].head; wl; )
3338	{	3587	{
3339	wn = wl->next;	3588	wn = wl->next;
3340	cb (EV_A_ EV_SIGNAL, wl);	3589	cb (EV_A_ EV_SIGNAL, wl);
3341	wl = wn;	3590	wl = wn;

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Comparing libev/ev.c (file contents): Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC vs. Revision 1.308 by root, Sun Jul 19 20:39:54 2009 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC vs.
Revision 1.308 by root, Sun Jul 19 20:39:54 2009 UTC