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

Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	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.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
…		…
66	#include <sys/types.h>	75	#include <sys/types.h>
67	#include <time.h>	76	#include <time.h>
68		77
69	#include <signal.h>	78	#include <signal.h>
70		79
71	#ifndef WIN32	80	#ifndef _WIN32
72	# include <unistd.h>	81	# include <unistd.h>
73	# include <sys/time.h>	82	# include <sys/time.h>
74	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	89	# endif
		90	#endif
		91
76	/**/	92	/**/
77		93
78	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
80	#endif	96	#endif
81		97
82	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
84	#endif	101	#endif
85		102
86	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
88	#endif	109	#endif
89		110
90	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
92	#endif	113	#endif
93		114
94	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
96	#endif	117	#endif
97		118
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
109	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
110	#endif	121	#endif
111		122
112	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
113		130
114	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
117	#endif	134	#endif
118		135
119	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
122	#endif	143	#endif
123		144
124	/**/	145	/**/
125		146
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	147	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	148	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	149	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	150	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
130		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
131	#include "ev.h"	155	# include "ev.h"
		156	#endif
132		157
133	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	160	# define inline inline
136	#else	161	#else
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
143		168
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		171
		172	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		173	#define EMPTY2(a,b) /* used to suppress some warnings */
		174
147	typedef struct ev_watcher *W;	175	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	176	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	177	typedef struct ev_watcher_time *WT;
150		178
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	179	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		180
153	#if WIN32	181	#ifdef _WIN32
154	/* note: the comment below could not be substantiated, but what would I care */	182	# include "ev_win32.c"
155	/* MSDN says this is required to handle SIGFPE */
156	volatile double SIGFPE_REQ = 0.0f;
157
158	static int
159	ev_socketpair_tcp (int filedes [2])
160	{
161	struct sockaddr_in addr = { 0 };
162	int addr_size = sizeof (addr);
163	SOCKET listener;
164	SOCKET sock [2] = { -1, -1 };
165
166	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
167	return -1;
168
169	addr.sin_family = AF_INET;
170	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
171	addr.sin_port = 0;
172
173	if (bind (listener, (struct sockaddr *)&addr, addr_size))
174	goto fail;
175
176	if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
177	goto fail;
178
179	if (listen (listener, 1))
180	goto fail;
181
182	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
183	goto fail;
184
185	if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
186	goto fail;
187
188	if ((sock[1] = accept (listener, 0, 0)) < 0)
189	goto fail;
190
191	closesocket (listener);
192
193	filedes [0] = sock [0];
194	filedes [1] = sock [1];
195
196	return 0;
197
198	fail:
199	closesocket (listener);
200
201	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
202	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
203
204	return -1;
205	}
206
207	# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
208	#else
209	# define ev_pipe(filedes) pipe (filedes)
210	#endif	183	#endif
211		184
212	/*****************************************************************************/	185	/*****************************************************************************/
213		186
214	static void (syserr_cb)(const char msg);	187	static void (syserr_cb)(const char msg);
…		…
262	typedef struct	235	typedef struct
263	{	236	{
264	WL head;	237	WL head;
265	unsigned char events;	238	unsigned char events;
266	unsigned char reify;	239	unsigned char reify;
		240	#if EV_SELECT_IS_WINSOCKET
		241	SOCKET handle;
		242	#endif
267	} ANFD;	243	} ANFD;
268		244
269	typedef struct	245	typedef struct
270	{	246	{
271	W w;	247	W w;
272	int events;	248	int events;
273	} ANPENDING;	249	} ANPENDING;
274		250
275	#if EV_MULTIPLICITY	251	#if EV_MULTIPLICITY
276		252
277	struct ev_loop	253	struct ev_loop
278	{	254	{
		255	ev_tstamp ev_rt_now;
		256	#define ev_rt_now ((loop)->ev_rt_now)
279	# define VAR(name,decl) decl;	257	#define VAR(name,decl) decl;
280	# include "ev_vars.h"	258	#include "ev_vars.h"
281	};
282	# undef VAR	259	#undef VAR
		260	};
283	# include "ev_wrap.h"	261	#include "ev_wrap.h"
		262
		263	struct ev_loop default_loop_struct;
		264	static struct ev_loop *default_loop;
284		265
285	#else	266	#else
286		267
		268	ev_tstamp ev_rt_now;
287	# define VAR(name,decl) static decl;	269	#define VAR(name,decl) static decl;
288	# include "ev_vars.h"	270	#include "ev_vars.h"
289	# undef VAR	271	#undef VAR
		272
		273	static int default_loop;
290		274
291	#endif	275	#endif
292		276
293	/*****************************************************************************/	277	/*****************************************************************************/
294		278
295	inline ev_tstamp	279	ev_tstamp
296	ev_time (void)	280	ev_time (void)
297	{	281	{
298	#if EV_USE_REALTIME	282	#if EV_USE_REALTIME
299	struct timespec ts;	283	struct timespec ts;
300	clock_gettime (CLOCK_REALTIME, &ts);	284	clock_gettime (CLOCK_REALTIME, &ts);
…		…
319	#endif	303	#endif
320		304
321	return ev_time ();	305	return ev_time ();
322	}	306	}
323		307
		308	#if EV_MULTIPLICITY
324	ev_tstamp	309	ev_tstamp
325	ev_now (EV_P)	310	ev_now (EV_P)
326	{	311	{
327	return rt_now;	312	return ev_rt_now;
328	}	313	}
		314	#endif
329		315
330	#define array_roundsize(base,n) ((n) \| 4 & ~3)	316	#define array_roundsize(type,n) (((n) \| 4) & ~3)
331		317
332	#define array_needsize(base,cur,cnt,init) \	318	#define array_needsize(type,base,cur,cnt,init) \
333	if (expect_false ((cnt) > cur)) \	319	if (expect_false ((cnt) > cur)) \
334	{ \	320	{ \
335	int newcnt = cur; \	321	int newcnt = cur; \
336	do \	322	do \
337	{ \	323	{ \
338	newcnt = array_roundsize (base, newcnt << 1); \	324	newcnt = array_roundsize (type, newcnt << 1); \
339	} \	325	} \
340	while ((cnt) > newcnt); \	326	while ((cnt) > newcnt); \
341	\	327	\
342	base = ev_realloc (base, sizeof (base) (newcnt)); \	328	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
343	init (base + cur, newcnt - cur); \	329	init (base + cur, newcnt - cur); \
344	cur = newcnt; \	330	cur = newcnt; \
345	}	331	}
346		332
347	#define array_slim(stem) \	333	#define array_slim(type,stem) \
348	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	334	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
349	{ \	335	{ \
350	stem ## max = array_roundsize (stem ## cnt >> 1); \	336	stem ## max = array_roundsize (stem ## cnt >> 1); \
351	base = ev_realloc (base, sizeof (base) (stem ## max)); \	337	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
352	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	338	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
353	}	339	}
354
355	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
356	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
357	#define array_free_microshit(stem) \
358	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
359		340
360	#define array_free(stem, idx) \	341	#define array_free(stem, idx) \
361	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	342	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
362		343
363	/*****************************************************************************/	344	/*****************************************************************************/
…		…
373		354
374	++base;	355	++base;
375	}	356	}
376	}	357	}
377		358
378	static void	359	void
379	event (EV_P_ W w, int events)	360	ev_feed_event (EV_P_ void *w, int revents)
380	{	361	{
		362	W w_ = (W)w;
		363
381	if (w->pending)	364	if (w_->pending)
382	{	365	{
383	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
384	return;	367	return;
385	}	368	}
386		369
387	w->pending = ++pendingcnt [ABSPRI (w)];	370	w_->pending = ++pendingcnt [ABSPRI (w_)];
388	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	371	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
389	pendings [ABSPRI (w)][w->pending - 1].w = w;	372	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
390	pendings [ABSPRI (w)][w->pending - 1].events = events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
391	}	374	}
392		375
393	static void	376	static void
394	queue_events (EV_P_ W *events, int eventcnt, int type)	377	queue_events (EV_P_ W *events, int eventcnt, int type)
395	{	378	{
396	int i;	379	int i;
397		380
398	for (i = 0; i < eventcnt; ++i)	381	for (i = 0; i < eventcnt; ++i)
399	event (EV_A_ events [i], type);	382	ev_feed_event (EV_A_ events [i], type);
400	}	383	}
401		384
402	static void	385	inline void
403	fd_event (EV_P_ int fd, int events)	386	fd_event (EV_P_ int fd, int revents)
404	{	387	{
405	ANFD *anfd = anfds + fd;	388	ANFD *anfd = anfds + fd;
406	struct ev_io *w;	389	struct ev_io *w;
407		390
408	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	391	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
409	{	392	{
410	int ev = w->events & events;	393	int ev = w->events & revents;
411		394
412	if (ev)	395	if (ev)
413	event (EV_A_ (W)w, ev);	396	ev_feed_event (EV_A_ (W)w, ev);
414	}	397	}
		398	}
		399
		400	void
		401	ev_feed_fd_event (EV_P_ int fd, int revents)
		402	{
		403	fd_event (EV_A_ fd, revents);
415	}	404	}
416		405
417	/*****************************************************************************/	406	/*****************************************************************************/
418		407
419	static void	408	static void
…		…
430	int events = 0;	419	int events = 0;
431		420
432	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	421	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
433	events \|= w->events;	422	events \|= w->events;
434		423
		424	#if EV_SELECT_IS_WINSOCKET
		425	if (events)
		426	{
		427	unsigned long argp;
		428	anfd->handle = _get_osfhandle (fd);
		429	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		430	}
		431	#endif
		432
435	anfd->reify = 0;	433	anfd->reify = 0;
436		434
437	method_modify (EV_A_ fd, anfd->events, events);	435	method_modify (EV_A_ fd, anfd->events, events);
438	anfd->events = events;	436	anfd->events = events;
439	}	437	}
…		…
448	return;	446	return;
449		447
450	anfds [fd].reify = 1;	448	anfds [fd].reify = 1;
451		449
452	++fdchangecnt;	450	++fdchangecnt;
453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	451	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
454	fdchanges [fdchangecnt - 1] = fd;	452	fdchanges [fdchangecnt - 1] = fd;
455	}	453	}
456		454
457	static void	455	static void
458	fd_kill (EV_P_ int fd)	456	fd_kill (EV_P_ int fd)
…		…
460	struct ev_io *w;	458	struct ev_io *w;
461		459
462	while ((w = (struct ev_io *)anfds [fd].head))	460	while ((w = (struct ev_io *)anfds [fd].head))
463	{	461	{
464	ev_io_stop (EV_A_ w);	462	ev_io_stop (EV_A_ w);
465	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	463	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
466	}	464	}
467	}	465	}
468		466
469	static int	467	static int
470	fd_valid (int fd)	468	fd_valid (int fd)
471	{	469	{
472	#ifdef WIN32	470	#ifdef _WIN32
473	return !!win32_get_osfhandle (fd);	471	return _get_osfhandle (fd) != -1;
474	#else	472	#else
475	return fcntl (fd, F_GETFD) != -1;	473	return fcntl (fd, F_GETFD) != -1;
476	#endif	474	#endif
477	}	475	}
478		476
…		…
558		556
559	heap [k] = w;	557	heap [k] = w;
560	((W)heap [k])->active = k + 1;	558	((W)heap [k])->active = k + 1;
561	}	559	}
562		560
		561	inline void
		562	adjustheap (WT *heap, int N, int k)
		563	{
		564	upheap (heap, k);
		565	downheap (heap, N, k);
		566	}
		567
563	/*****************************************************************************/	568	/*****************************************************************************/
564		569
565	typedef struct	570	typedef struct
566	{	571	{
567	WL head;	572	WL head;
…		…
588	}	593	}
589		594
590	static void	595	static void
591	sighandler (int signum)	596	sighandler (int signum)
592	{	597	{
593	#if WIN32	598	#if _WIN32
594	signal (signum, sighandler);	599	signal (signum, sighandler);
595	#endif	600	#endif
596		601
597	signals [signum - 1].gotsig = 1;	602	signals [signum - 1].gotsig = 1;
598		603
…		…
603	write (sigpipe [1], &signum, 1);	608	write (sigpipe [1], &signum, 1);
604	errno = old_errno;	609	errno = old_errno;
605	}	610	}
606	}	611	}
607		612
		613	void
		614	ev_feed_signal_event (EV_P_ int signum)
		615	{
		616	WL w;
		617
		618	#if EV_MULTIPLICITY
		619	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		620	#endif
		621
		622	--signum;
		623
		624	if (signum < 0 \|\| signum >= signalmax)
		625	return;
		626
		627	signals [signum].gotsig = 0;
		628
		629	for (w = signals [signum].head; w; w = w->next)
		630	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		631	}
		632
608	static void	633	static void
609	sigcb (EV_P_ struct ev_io *iow, int revents)	634	sigcb (EV_P_ struct ev_io *iow, int revents)
610	{	635	{
611	WL w;
612	int signum;	636	int signum;
613		637
614	read (sigpipe [0], &revents, 1);	638	read (sigpipe [0], &revents, 1);
615	gotsig = 0;	639	gotsig = 0;
616		640
617	for (signum = signalmax; signum--; )	641	for (signum = signalmax; signum--; )
618	if (signals [signum].gotsig)	642	if (signals [signum].gotsig)
619	{	643	ev_feed_signal_event (EV_A_ signum + 1);
620	signals [signum].gotsig = 0;	644	}
621		645
622	for (w = signals [signum].head; w; w = w->next)	646	inline void
623	event (EV_A_ (W)w, EV_SIGNAL);	647	fd_intern (int fd)
624	}	648	{
		649	#ifdef _WIN32
		650	int arg = 1;
		651	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		652	#else
		653	fcntl (fd, F_SETFD, FD_CLOEXEC);
		654	fcntl (fd, F_SETFL, O_NONBLOCK);
		655	#endif
625	}	656	}
626		657
627	static void	658	static void
628	siginit (EV_P)	659	siginit (EV_P)
629	{	660	{
630	#ifndef WIN32	661	fd_intern (sigpipe [0]);
631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	662	fd_intern (sigpipe [1]);
632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
633
634	/* rather than sort out wether we really need nb, set it */
635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
637	#endif
638		663
639	ev_io_set (&sigev, sigpipe [0], EV_READ);	664	ev_io_set (&sigev, sigpipe [0], EV_READ);
640	ev_io_start (EV_A_ &sigev);	665	ev_io_start (EV_A_ &sigev);
641	ev_unref (EV_A); /* child watcher should not keep loop alive */	666	ev_unref (EV_A); /* child watcher should not keep loop alive */
642	}	667	}
643		668
644	/*****************************************************************************/	669	/*****************************************************************************/
645		670
646	static struct ev_child *childs [PID_HASHSIZE];	671	static struct ev_child *childs [PID_HASHSIZE];
647		672
648	#ifndef WIN32	673	#ifndef _WIN32
649		674
650	static struct ev_signal childev;	675	static struct ev_signal childev;
651		676
652	#ifndef WCONTINUED	677	#ifndef WCONTINUED
653	# define WCONTINUED 0	678	# define WCONTINUED 0
…		…
662	if (w->pid == pid \|\| !w->pid)	687	if (w->pid == pid \|\| !w->pid)
663	{	688	{
664	ev_priority (w) = ev_priority (sw); /* need to do it now */	689	ev_priority (w) = ev_priority (sw); /* need to do it now */
665	w->rpid = pid;	690	w->rpid = pid;
666	w->rstatus = status;	691	w->rstatus = status;
667	event (EV_A_ (W)w, EV_CHILD);	692	ev_feed_event (EV_A_ (W)w, EV_CHILD);
668	}	693	}
669	}	694	}
670		695
671	static void	696	static void
672	childcb (EV_P_ struct ev_signal *sw, int revents)	697	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
674	int pid, status;	699	int pid, status;
675		700
676	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	701	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
677	{	702	{
678	/* make sure we are called again until all childs have been reaped */	703	/* make sure we are called again until all childs have been reaped */
679	event (EV_A_ (W)sw, EV_SIGNAL);	704	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
680		705
681	child_reap (EV_A_ sw, pid, pid, status);	706	child_reap (EV_A_ sw, pid, pid, status);
682	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	707	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
683	}	708	}
684	}	709	}
…		…
714		739
715	/* return true if we are running with elevated privileges and should ignore env variables */	740	/* return true if we are running with elevated privileges and should ignore env variables */
716	static int	741	static int
717	enable_secure (void)	742	enable_secure (void)
718	{	743	{
719	#ifdef WIN32	744	#ifdef _WIN32
720	return 0;	745	return 0;
721	#else	746	#else
722	return getuid () != geteuid ()	747	return getuid () != geteuid ()
723	\|\| getgid () != getegid ();	748	\|\| getgid () != getegid ();
724	#endif	749	#endif
725	}	750	}
726		751
727	int	752	unsigned int
728	ev_method (EV_P)	753	ev_method (EV_P)
729	{	754	{
730	return method;	755	return method;
731	}	756	}
732		757
733	static void	758	static void
734	loop_init (EV_P_ int methods)	759	loop_init (EV_P_ unsigned int flags)
735	{	760	{
736	if (!method)	761	if (!method)
737	{	762	{
738	#if EV_USE_MONOTONIC	763	#if EV_USE_MONOTONIC
739	{	764	{
…		…
741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	766	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
742	have_monotonic = 1;	767	have_monotonic = 1;
743	}	768	}
744	#endif	769	#endif
745		770
746	rt_now = ev_time ();	771	ev_rt_now = ev_time ();
747	mn_now = get_clock ();	772	mn_now = get_clock ();
748	now_floor = mn_now;	773	now_floor = mn_now;
749	rtmn_diff = rt_now - mn_now;	774	rtmn_diff = ev_rt_now - mn_now;
750		775
751	if (methods == EVMETHOD_AUTO)	776	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
752	if (!enable_secure () && getenv ("LIBEV_METHODS"))
753	methods = atoi (getenv ("LIBEV_METHODS"));	777	flags = atoi (getenv ("LIBEV_FLAGS"));
754	else	778
755	methods = EVMETHOD_ANY;	779	if (!(flags & 0x0000ffff))
		780	flags \|= 0x0000ffff;
756		781
757	method = 0;	782	method = 0;
758	#if EV_USE_WIN32
759	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
760	#endif
761	#if EV_USE_KQUEUE	783	#if EV_USE_KQUEUE
762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	784	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
763	#endif	785	#endif
764	#if EV_USE_EPOLL	786	#if EV_USE_EPOLL
765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	787	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
766	#endif	788	#endif
767	#if EV_USE_POLL	789	#if EV_USE_POLL
768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	790	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
769	#endif	791	#endif
770	#if EV_USE_SELECT	792	#if EV_USE_SELECT
771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	793	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
772	#endif	794	#endif
773		795
774	ev_watcher_init (&sigev, sigcb);	796	ev_init (&sigev, sigcb);
775	ev_set_priority (&sigev, EV_MAXPRI);	797	ev_set_priority (&sigev, EV_MAXPRI);
776	}	798	}
777	}	799	}
778		800
779	void	801	void
780	loop_destroy (EV_P)	802	loop_destroy (EV_P)
781	{	803	{
782	int i;	804	int i;
783		805
784	#if EV_USE_WIN32
785	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
786	#endif
787	#if EV_USE_KQUEUE	806	#if EV_USE_KQUEUE
788	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	807	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
789	#endif	808	#endif
790	#if EV_USE_EPOLL	809	#if EV_USE_EPOLL
791	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	810	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
799		818
800	for (i = NUMPRI; i--; )	819	for (i = NUMPRI; i--; )
801	array_free (pending, [i]);	820	array_free (pending, [i]);
802		821
803	/* have to use the microsoft-never-gets-it-right macro */	822	/* have to use the microsoft-never-gets-it-right macro */
804	array_free_microshit (fdchange);	823	array_free (fdchange, EMPTY0);
805	array_free_microshit (timer);	824	array_free (timer, EMPTY0);
806	array_free_microshit (periodic);	825	#if EV_PERIODICS
807	array_free_microshit (idle);	826	array_free (periodic, EMPTY0);
808	array_free_microshit (prepare);	827	#endif
809	array_free_microshit (check);	828	array_free (idle, EMPTY0);
		829	array_free (prepare, EMPTY0);
		830	array_free (check, EMPTY0);
810		831
811	method = 0;	832	method = 0;
812	}	833	}
813		834
814	static void	835	static void
…		…
828	ev_ref (EV_A);	849	ev_ref (EV_A);
829	ev_io_stop (EV_A_ &sigev);	850	ev_io_stop (EV_A_ &sigev);
830	close (sigpipe [0]);	851	close (sigpipe [0]);
831	close (sigpipe [1]);	852	close (sigpipe [1]);
832		853
833	while (ev_pipe (sigpipe))	854	while (pipe (sigpipe))
834	syserr ("(libev) error creating pipe");	855	syserr ("(libev) error creating pipe");
835		856
836	siginit (EV_A);	857	siginit (EV_A);
837	}	858	}
838		859
839	postfork = 0;	860	postfork = 0;
840	}	861	}
841		862
842	#if EV_MULTIPLICITY	863	#if EV_MULTIPLICITY
843	struct ev_loop *	864	struct ev_loop *
844	ev_loop_new (int methods)	865	ev_loop_new (unsigned int flags)
845	{	866	{
846	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	867	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
847		868
848	memset (loop, 0, sizeof (struct ev_loop));	869	memset (loop, 0, sizeof (struct ev_loop));
849		870
850	loop_init (EV_A_ methods);	871	loop_init (EV_A_ flags);
851		872
852	if (ev_method (EV_A))	873	if (ev_method (EV_A))
853	return loop;	874	return loop;
854		875
855	return 0;	876	return 0;
…		…
869	}	890	}
870		891
871	#endif	892	#endif
872		893
873	#if EV_MULTIPLICITY	894	#if EV_MULTIPLICITY
874	struct ev_loop default_loop_struct;
875	static struct ev_loop *default_loop;
876
877	struct ev_loop *	895	struct ev_loop *
878	#else	896	#else
879	static int default_loop;
880
881	int	897	int
882	#endif	898	#endif
883	ev_default_loop (int methods)	899	ev_default_loop (unsigned int flags)
884	{	900	{
885	if (sigpipe [0] == sigpipe [1])	901	if (sigpipe [0] == sigpipe [1])
886	if (ev_pipe (sigpipe))	902	if (pipe (sigpipe))
887	return 0;	903	return 0;
888		904
889	if (!default_loop)	905	if (!default_loop)
890	{	906	{
891	#if EV_MULTIPLICITY	907	#if EV_MULTIPLICITY
892	struct ev_loop *loop = default_loop = &default_loop_struct;	908	struct ev_loop *loop = default_loop = &default_loop_struct;
893	#else	909	#else
894	default_loop = 1;	910	default_loop = 1;
895	#endif	911	#endif
896		912
897	loop_init (EV_A_ methods);	913	loop_init (EV_A_ flags);
898		914
899	if (ev_method (EV_A))	915	if (ev_method (EV_A))
900	{	916	{
901	siginit (EV_A);	917	siginit (EV_A);
902		918
903	#ifndef WIN32	919	#ifndef _WIN32
904	ev_signal_init (&childev, childcb, SIGCHLD);	920	ev_signal_init (&childev, childcb, SIGCHLD);
905	ev_set_priority (&childev, EV_MAXPRI);	921	ev_set_priority (&childev, EV_MAXPRI);
906	ev_signal_start (EV_A_ &childev);	922	ev_signal_start (EV_A_ &childev);
907	ev_unref (EV_A); /* child watcher should not keep loop alive */	923	ev_unref (EV_A); /* child watcher should not keep loop alive */
908	#endif	924	#endif
…		…
919	{	935	{
920	#if EV_MULTIPLICITY	936	#if EV_MULTIPLICITY
921	struct ev_loop *loop = default_loop;	937	struct ev_loop *loop = default_loop;
922	#endif	938	#endif
923		939
924	#ifndef WIN32	940	#ifndef _WIN32
925	ev_ref (EV_A); /* child watcher */	941	ev_ref (EV_A); /* child watcher */
926	ev_signal_stop (EV_A_ &childev);	942	ev_signal_stop (EV_A_ &childev);
927	#endif	943	#endif
928		944
929	ev_ref (EV_A); /* signal watcher */	945	ev_ref (EV_A); /* signal watcher */
…		…
945	if (method)	961	if (method)
946	postfork = 1;	962	postfork = 1;
947	}	963	}
948		964
949	/*****************************************************************************/	965	/*****************************************************************************/
		966
		967	static int
		968	any_pending (EV_P)
		969	{
		970	int pri;
		971
		972	for (pri = NUMPRI; pri--; )
		973	if (pendingcnt [pri])
		974	return 1;
		975
		976	return 0;
		977	}
950		978
951	static void	979	static void
952	call_pending (EV_P)	980	call_pending (EV_P)
953	{	981	{
954	int pri;	982	int pri;
…		…
959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	987	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
960		988
961	if (p->w)	989	if (p->w)
962	{	990	{
963	p->w->pending = 0;	991	p->w->pending = 0;
964	p->w->cb (EV_A_ p->w, p->events);	992	EV_CB_INVOKE (p->w, p->events);
965	}	993	}
966	}	994	}
967	}	995	}
968		996
969	static void	997	static void
…		…
977		1005
978	/* first reschedule or stop timer */	1006	/* first reschedule or stop timer */
979	if (w->repeat)	1007	if (w->repeat)
980	{	1008	{
981	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1009	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1010
982	((WT)w)->at = mn_now + w->repeat;	1011	((WT)w)->at += w->repeat;
		1012	if (((WT)w)->at < mn_now)
		1013	((WT)w)->at = mn_now;
		1014
983	downheap ((WT *)timers, timercnt, 0);	1015	downheap ((WT *)timers, timercnt, 0);
984	}	1016	}
985	else	1017	else
986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1018	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
987		1019
988	event (EV_A_ (W)w, EV_TIMEOUT);	1020	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
989	}	1021	}
990	}	1022	}
991		1023
		1024	#if EV_PERIODICS
992	static void	1025	static void
993	periodics_reify (EV_P)	1026	periodics_reify (EV_P)
994	{	1027	{
995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1028	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
996	{	1029	{
997	struct ev_periodic *w = periodics [0];	1030	struct ev_periodic *w = periodics [0];
998		1031
999	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1032	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1000		1033
1001	/* first reschedule or stop timer */	1034	/* first reschedule or stop timer */
1002	if (w->interval)	1035	if (w->reschedule_cb)
1003	{	1036	{
		1037	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1038	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1039	downheap ((WT *)periodics, periodiccnt, 0);
		1040	}
		1041	else if (w->interval)
		1042	{
1004	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1043	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1005	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1044	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1006	downheap ((WT *)periodics, periodiccnt, 0);	1045	downheap ((WT *)periodics, periodiccnt, 0);
1007	}	1046	}
1008	else	1047	else
1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1048	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1010		1049
1011	event (EV_A_ (W)w, EV_PERIODIC);	1050	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1012	}	1051	}
1013	}	1052	}
1014		1053
1015	static void	1054	static void
1016	periodics_reschedule (EV_P)	1055	periodics_reschedule (EV_P)
…		…
1020	/* adjust periodics after time jump */	1059	/* adjust periodics after time jump */
1021	for (i = 0; i < periodiccnt; ++i)	1060	for (i = 0; i < periodiccnt; ++i)
1022	{	1061	{
1023	struct ev_periodic *w = periodics [i];	1062	struct ev_periodic *w = periodics [i];
1024		1063
		1064	if (w->reschedule_cb)
		1065	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1025	if (w->interval)	1066	else if (w->interval)
1026	{
1027	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1067	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1028
1029	if (fabs (diff) >= 1e-4)
1030	{
1031	ev_periodic_stop (EV_A_ w);
1032	ev_periodic_start (EV_A_ w);
1033
1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
1035	}
1036	}
1037	}	1068	}
		1069
		1070	/* now rebuild the heap */
		1071	for (i = periodiccnt >> 1; i--; )
		1072	downheap ((WT *)periodics, periodiccnt, i);
1038	}	1073	}
		1074	#endif
1039		1075
1040	inline int	1076	inline int
1041	time_update_monotonic (EV_P)	1077	time_update_monotonic (EV_P)
1042	{	1078	{
1043	mn_now = get_clock ();	1079	mn_now = get_clock ();
1044		1080
1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1081	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1046	{	1082	{
1047	rt_now = rtmn_diff + mn_now;	1083	ev_rt_now = rtmn_diff + mn_now;
1048	return 0;	1084	return 0;
1049	}	1085	}
1050	else	1086	else
1051	{	1087	{
1052	now_floor = mn_now;	1088	now_floor = mn_now;
1053	rt_now = ev_time ();	1089	ev_rt_now = ev_time ();
1054	return 1;	1090	return 1;
1055	}	1091	}
1056	}	1092	}
1057		1093
1058	static void	1094	static void
…		…
1067	{	1103	{
1068	ev_tstamp odiff = rtmn_diff;	1104	ev_tstamp odiff = rtmn_diff;
1069		1105
1070	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1106	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1071	{	1107	{
1072	rtmn_diff = rt_now - mn_now;	1108	rtmn_diff = ev_rt_now - mn_now;
1073		1109
1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1110	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1075	return; /* all is well */	1111	return; /* all is well */
1076		1112
1077	rt_now = ev_time ();	1113	ev_rt_now = ev_time ();
1078	mn_now = get_clock ();	1114	mn_now = get_clock ();
1079	now_floor = mn_now;	1115	now_floor = mn_now;
1080	}	1116	}
1081		1117
		1118	# if EV_PERIODICS
1082	periodics_reschedule (EV_A);	1119	periodics_reschedule (EV_A);
		1120	# endif
1083	/* no timer adjustment, as the monotonic clock doesn't jump */	1121	/* no timer adjustment, as the monotonic clock doesn't jump */
1084	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1122	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1085	}	1123	}
1086	}	1124	}
1087	else	1125	else
1088	#endif	1126	#endif
1089	{	1127	{
1090	rt_now = ev_time ();	1128	ev_rt_now = ev_time ();
1091		1129
1092	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1130	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1093	{	1131	{
		1132	#if EV_PERIODICS
1094	periodics_reschedule (EV_A);	1133	periodics_reschedule (EV_A);
		1134	#endif
1095		1135
1096	/* adjust timers. this is easy, as the offset is the same for all */	1136	/* adjust timers. this is easy, as the offset is the same for all */
1097	for (i = 0; i < timercnt; ++i)	1137	for (i = 0; i < timercnt; ++i)
1098	((WT)timers [i])->at += rt_now - mn_now;	1138	((WT)timers [i])->at += ev_rt_now - mn_now;
1099	}	1139	}
1100		1140
1101	mn_now = rt_now;	1141	mn_now = ev_rt_now;
1102	}	1142	}
1103	}	1143	}
1104		1144
1105	void	1145	void
1106	ev_ref (EV_P)	1146	ev_ref (EV_P)
…		…
1120	ev_loop (EV_P_ int flags)	1160	ev_loop (EV_P_ int flags)
1121	{	1161	{
1122	double block;	1162	double block;
1123	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1163	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1124		1164
1125	do	1165	while (activecnt)
1126	{	1166	{
1127	/* queue check watchers (and execute them) */	1167	/* queue check watchers (and execute them) */
1128	if (expect_false (preparecnt))	1168	if (expect_false (preparecnt))
1129	{	1169	{
1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1170	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	/* update fd-related kernel structures */	1178	/* update fd-related kernel structures */
1139	fd_reify (EV_A);	1179	fd_reify (EV_A);
1140		1180
1141	/* calculate blocking time */	1181	/* calculate blocking time */
1142		1182
1143	/* we only need this for !monotonic clockor timers, but as we basically	1183	/* we only need this for !monotonic clock or timers, but as we basically
1144	always have timers, we just calculate it always */	1184	always have timers, we just calculate it always */
1145	#if EV_USE_MONOTONIC	1185	#if EV_USE_MONOTONIC
1146	if (expect_true (have_monotonic))	1186	if (expect_true (have_monotonic))
1147	time_update_monotonic (EV_A);	1187	time_update_monotonic (EV_A);
1148	else	1188	else
1149	#endif	1189	#endif
1150	{	1190	{
1151	rt_now = ev_time ();	1191	ev_rt_now = ev_time ();
1152	mn_now = rt_now;	1192	mn_now = ev_rt_now;
1153	}	1193	}
1154		1194
1155	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1195	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1156	block = 0.;	1196	block = 0.;
1157	else	1197	else
…		…
1162	{	1202	{
1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1203	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1164	if (block > to) block = to;	1204	if (block > to) block = to;
1165	}	1205	}
1166		1206
		1207	#if EV_PERIODICS
1167	if (periodiccnt)	1208	if (periodiccnt)
1168	{	1209	{
1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1210	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1170	if (block > to) block = to;	1211	if (block > to) block = to;
1171	}	1212	}
		1213	#endif
1172		1214
1173	if (block < 0.) block = 0.;	1215	if (block < 0.) block = 0.;
1174	}	1216	}
1175		1217
1176	method_poll (EV_A_ block);	1218	method_poll (EV_A_ block);
1177		1219
1178	/* update rt_now, do magic */	1220	/* update ev_rt_now, do magic */
1179	time_update (EV_A);	1221	time_update (EV_A);
1180		1222
1181	/* queue pending timers and reschedule them */	1223	/* queue pending timers and reschedule them */
1182	timers_reify (EV_A); /* relative timers called last */	1224	timers_reify (EV_A); /* relative timers called last */
		1225	#if EV_PERIODICS
1183	periodics_reify (EV_A); /* absolute timers called first */	1226	periodics_reify (EV_A); /* absolute timers called first */
		1227	#endif
1184		1228
1185	/* queue idle watchers unless io or timers are pending */	1229	/* queue idle watchers unless io or timers are pending */
1186	if (!pendingcnt)	1230	if (idlecnt && !any_pending (EV_A))
1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1231	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1188		1232
1189	/* queue check watchers, to be executed first */	1233	/* queue check watchers, to be executed first */
1190	if (checkcnt)	1234	if (checkcnt)
1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1235	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1192		1236
1193	call_pending (EV_A);	1237	call_pending (EV_A);
		1238
		1239	if (loop_done)
		1240	break;
1194	}	1241	}
1195	while (activecnt && !loop_done);
1196		1242
1197	if (loop_done != 2)	1243	if (loop_done != 2)
1198	loop_done = 0;	1244	loop_done = 0;
1199	}	1245	}
1200		1246
…		…
1266	return;	1312	return;
1267		1313
1268	assert (("ev_io_start called with negative fd", fd >= 0));	1314	assert (("ev_io_start called with negative fd", fd >= 0));
1269		1315
1270	ev_start (EV_A_ (W)w, 1);	1316	ev_start (EV_A_ (W)w, 1);
1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1317	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1318	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1273		1319
1274	fd_change (EV_A_ fd);	1320	fd_change (EV_A_ fd);
1275	}	1321	}
1276		1322
…		…
1279	{	1325	{
1280	ev_clear_pending (EV_A_ (W)w);	1326	ev_clear_pending (EV_A_ (W)w);
1281	if (!ev_is_active (w))	1327	if (!ev_is_active (w))
1282	return;	1328	return;
1283		1329
		1330	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1331
1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1332	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1285	ev_stop (EV_A_ (W)w);	1333	ev_stop (EV_A_ (W)w);
1286		1334
1287	fd_change (EV_A_ w->fd);	1335	fd_change (EV_A_ w->fd);
1288	}	1336	}
…		…
1296	((WT)w)->at += mn_now;	1344	((WT)w)->at += mn_now;
1297		1345
1298	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1346	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1299		1347
1300	ev_start (EV_A_ (W)w, ++timercnt);	1348	ev_start (EV_A_ (W)w, ++timercnt);
1301	array_needsize (timers, timermax, timercnt, (void));	1349	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1302	timers [timercnt - 1] = w;	1350	timers [timercnt - 1] = w;
1303	upheap ((WT *)timers, timercnt - 1);	1351	upheap ((WT *)timers, timercnt - 1);
1304		1352
1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1353	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1306	}	1354	}
…		…
1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1363	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1316		1364
1317	if (((W)w)->active < timercnt--)	1365	if (((W)w)->active < timercnt--)
1318	{	1366	{
1319	timers [((W)w)->active - 1] = timers [timercnt];	1367	timers [((W)w)->active - 1] = timers [timercnt];
1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1368	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1321	}	1369	}
1322		1370
1323	((WT)w)->at = w->repeat;	1371	((WT)w)->at -= mn_now;
1324		1372
1325	ev_stop (EV_A_ (W)w);	1373	ev_stop (EV_A_ (W)w);
1326	}	1374	}
1327		1375
1328	void	1376	void
…		…
1331	if (ev_is_active (w))	1379	if (ev_is_active (w))
1332	{	1380	{
1333	if (w->repeat)	1381	if (w->repeat)
1334	{	1382	{
1335	((WT)w)->at = mn_now + w->repeat;	1383	((WT)w)->at = mn_now + w->repeat;
1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1384	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1337	}	1385	}
1338	else	1386	else
1339	ev_timer_stop (EV_A_ w);	1387	ev_timer_stop (EV_A_ w);
1340	}	1388	}
1341	else if (w->repeat)	1389	else if (w->repeat)
		1390	{
		1391	w->at = w->repeat;
1342	ev_timer_start (EV_A_ w);	1392	ev_timer_start (EV_A_ w);
		1393	}
1343	}	1394	}
1344		1395
		1396	#if EV_PERIODICS
1345	void	1397	void
1346	ev_periodic_start (EV_P_ struct ev_periodic *w)	1398	ev_periodic_start (EV_P_ struct ev_periodic *w)
1347	{	1399	{
1348	if (ev_is_active (w))	1400	if (ev_is_active (w))
1349	return;	1401	return;
1350		1402
		1403	if (w->reschedule_cb)
		1404	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1405	else if (w->interval)
		1406	{
1351	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1407	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1352
1353	/* this formula differs from the one in periodic_reify because we do not always round up */	1408	/* this formula differs from the one in periodic_reify because we do not always round up */
1354	if (w->interval)
1355	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1409	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1410	}
1356		1411
1357	ev_start (EV_A_ (W)w, ++periodiccnt);	1412	ev_start (EV_A_ (W)w, ++periodiccnt);
1358	array_needsize (periodics, periodicmax, periodiccnt, (void));	1413	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1359	periodics [periodiccnt - 1] = w;	1414	periodics [periodiccnt - 1] = w;
1360	upheap ((WT *)periodics, periodiccnt - 1);	1415	upheap ((WT *)periodics, periodiccnt - 1);
1361		1416
1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1417	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1363	}	1418	}
…		…
1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1427	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1373		1428
1374	if (((W)w)->active < periodiccnt--)	1429	if (((W)w)->active < periodiccnt--)
1375	{	1430	{
1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1431	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1432	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1378	}	1433	}
1379		1434
1380	ev_stop (EV_A_ (W)w);	1435	ev_stop (EV_A_ (W)w);
1381	}	1436	}
1382		1437
1383	void	1438	void
		1439	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1440	{
		1441	/* TODO: use adjustheap and recalculation */
		1442	ev_periodic_stop (EV_A_ w);
		1443	ev_periodic_start (EV_A_ w);
		1444	}
		1445	#endif
		1446
		1447	void
1384	ev_idle_start (EV_P_ struct ev_idle *w)	1448	ev_idle_start (EV_P_ struct ev_idle *w)
1385	{	1449	{
1386	if (ev_is_active (w))	1450	if (ev_is_active (w))
1387	return;	1451	return;
1388		1452
1389	ev_start (EV_A_ (W)w, ++idlecnt);	1453	ev_start (EV_A_ (W)w, ++idlecnt);
1390	array_needsize (idles, idlemax, idlecnt, (void));	1454	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1391	idles [idlecnt - 1] = w;	1455	idles [idlecnt - 1] = w;
1392	}	1456	}
1393		1457
1394	void	1458	void
1395	ev_idle_stop (EV_P_ struct ev_idle *w)	1459	ev_idle_stop (EV_P_ struct ev_idle *w)
1396	{	1460	{
1397	ev_clear_pending (EV_A_ (W)w);	1461	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1462	if (!ev_is_active (w))
1399	return;	1463	return;
1400		1464
1401	idles [((W)w)->active - 1] = idles [--idlecnt];	1465	idles [((W)w)->active - 1] = idles [--idlecnt];
1402	ev_stop (EV_A_ (W)w);	1466	ev_stop (EV_A_ (W)w);
1403	}	1467	}
…		…
1407	{	1471	{
1408	if (ev_is_active (w))	1472	if (ev_is_active (w))
1409	return;	1473	return;
1410		1474
1411	ev_start (EV_A_ (W)w, ++preparecnt);	1475	ev_start (EV_A_ (W)w, ++preparecnt);
1412	array_needsize (prepares, preparemax, preparecnt, (void));	1476	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1413	prepares [preparecnt - 1] = w;	1477	prepares [preparecnt - 1] = w;
1414	}	1478	}
1415		1479
1416	void	1480	void
1417	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1481	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1418	{	1482	{
1419	ev_clear_pending (EV_A_ (W)w);	1483	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1484	if (!ev_is_active (w))
1421	return;	1485	return;
1422		1486
1423	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1487	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1424	ev_stop (EV_A_ (W)w);	1488	ev_stop (EV_A_ (W)w);
1425	}	1489	}
…		…
1429	{	1493	{
1430	if (ev_is_active (w))	1494	if (ev_is_active (w))
1431	return;	1495	return;
1432		1496
1433	ev_start (EV_A_ (W)w, ++checkcnt);	1497	ev_start (EV_A_ (W)w, ++checkcnt);
1434	array_needsize (checks, checkmax, checkcnt, (void));	1498	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1435	checks [checkcnt - 1] = w;	1499	checks [checkcnt - 1] = w;
1436	}	1500	}
1437		1501
1438	void	1502	void
1439	ev_check_stop (EV_P_ struct ev_check *w)	1503	ev_check_stop (EV_P_ struct ev_check *w)
1440	{	1504	{
1441	ev_clear_pending (EV_A_ (W)w);	1505	ev_clear_pending (EV_A_ (W)w);
1442	if (ev_is_active (w))	1506	if (!ev_is_active (w))
1443	return;	1507	return;
1444		1508
1445	checks [((W)w)->active - 1] = checks [--checkcnt];	1509	checks [((W)w)->active - 1] = checks [--checkcnt];
1446	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1447	}	1511	}
…		…
1460	return;	1524	return;
1461		1525
1462	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1526	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1463		1527
1464	ev_start (EV_A_ (W)w, 1);	1528	ev_start (EV_A_ (W)w, 1);
1465	array_needsize (signals, signalmax, w->signum, signals_init);	1529	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1530	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1467		1531
1468	if (!((WL)w)->next)	1532	if (!((WL)w)->next)
1469	{	1533	{
1470	#if WIN32	1534	#if _WIN32
1471	signal (w->signum, sighandler);	1535	signal (w->signum, sighandler);
1472	#else	1536	#else
1473	struct sigaction sa;	1537	struct sigaction sa;
1474	sa.sa_handler = sighandler;	1538	sa.sa_handler = sighandler;
1475	sigfillset (&sa.sa_mask);	1539	sigfillset (&sa.sa_mask);
…		…
1508		1572
1509	void	1573	void
1510	ev_child_stop (EV_P_ struct ev_child *w)	1574	ev_child_stop (EV_P_ struct ev_child *w)
1511	{	1575	{
1512	ev_clear_pending (EV_A_ (W)w);	1576	ev_clear_pending (EV_A_ (W)w);
1513	if (ev_is_active (w))	1577	if (!ev_is_active (w))
1514	return;	1578	return;
1515		1579
1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1580	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1517	ev_stop (EV_A_ (W)w);	1581	ev_stop (EV_A_ (W)w);
1518	}	1582	}
…		…
1553	}	1617	}
1554		1618
1555	void	1619	void
1556	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1620	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1557	{	1621	{
1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1622	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1559		1623
1560	if (!once)	1624	if (!once)
1561	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1625	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1562	else	1626	else
1563	{	1627	{
1564	once->cb = cb;	1628	once->cb = cb;
1565	once->arg = arg;	1629	once->arg = arg;
1566		1630
1567	ev_watcher_init (&once->io, once_cb_io);	1631	ev_init (&once->io, once_cb_io);
1568	if (fd >= 0)	1632	if (fd >= 0)
1569	{	1633	{
1570	ev_io_set (&once->io, fd, events);	1634	ev_io_set (&once->io, fd, events);
1571	ev_io_start (EV_A_ &once->io);	1635	ev_io_start (EV_A_ &once->io);
1572	}	1636	}
1573		1637
1574	ev_watcher_init (&once->to, once_cb_to);	1638	ev_init (&once->to, once_cb_to);
1575	if (timeout >= 0.)	1639	if (timeout >= 0.)
1576	{	1640	{
1577	ev_timer_set (&once->to, timeout, 0.);	1641	ev_timer_set (&once->to, timeout, 0.);
1578	ev_timer_start (EV_A_ &once->to);	1642	ev_timer_start (EV_A_ &once->to);
1579	}	1643	}
1580	}	1644	}
1581	}	1645	}
1582		1646
		1647	#ifdef __cplusplus
		1648	}
		1649	#endif
		1650

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Comparing libev/ev.c (file contents): Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs. Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC