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

Comparing libev/ev.c (file contents):
Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs.
Revision 1.107 by root, Mon Nov 12 01:20:25 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
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# 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
71	#endif	89	# endif
72	#include <sys/time.h>	90	#endif
73	#include <time.h>
74		91
75	/**/	92	/**/
76		93
77	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
79	#endif	96	#endif
80		97
81	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
83	#endif	101	#endif
84		102
85	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
86	# 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
87	#endif	109	#endif
88		110
89	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
91	#endif	113	#endif
92		114
93	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
95	#endif	117	#endif
96		118
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
106	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
107	#endif	121	#endif
108		122
109	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
110		130
111	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
112	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
113	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
114	#endif	134	#endif
115		135
116	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
119	#endif	143	#endif
120		144
121	/**/	145	/**/
122		146
123	#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) */
124	#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) */
125	#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 */
126	/#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 */
127		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
128	#include "ev.h"	155	# include "ev.h"
		156	#endif
129		157
130	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	160	# define inline inline
133	#else	161	#else
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
140		168
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		171
		172	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		173
144	typedef struct ev_watcher *W;	174	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	175	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	176	typedef struct ev_watcher_time *WT;
147		177
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	178	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		179
150	#if WIN32	180	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	181	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	182	#endif
155		183
156	/*****************************************************************************/	184	/*****************************************************************************/
157		185
158	static void (*syserr_cb)(void);	186	static void (syserr_cb)(const char msg);
159		187
160	void ev_set_syserr_cb (void (*cb)(void))	188	void ev_set_syserr_cb (void (cb)(const char msg))
161	{	189	{
162	syserr_cb = cb;	190	syserr_cb = cb;
163	}	191	}
164		192
165	static void	193	static void
166	syserr (void)	194	syserr (const char *msg)
167	{	195	{
		196	if (!msg)
		197	msg = "(libev) system error";
		198
168	if (syserr_cb)	199	if (syserr_cb)
169	syserr_cb ();	200	syserr_cb (msg);
170	else	201	else
171	{	202	{
172	perror ("libev");	203	perror (msg);
173	abort ();	204	abort ();
174	}	205	}
175	}	206	}
176		207
177	static void (alloc)(void *ptr, long size);	208	static void (alloc)(void *ptr, long size);
…		…
203	typedef struct	234	typedef struct
204	{	235	{
205	WL head;	236	WL head;
206	unsigned char events;	237	unsigned char events;
207	unsigned char reify;	238	unsigned char reify;
		239	#if EV_SELECT_IS_WINSOCKET
		240	SOCKET handle;
		241	#endif
208	} ANFD;	242	} ANFD;
209		243
210	typedef struct	244	typedef struct
211	{	245	{
212	W w;	246	W w;
213	int events;	247	int events;
214	} ANPENDING;	248	} ANPENDING;
215		249
216	#if EV_MULTIPLICITY	250	#if EV_MULTIPLICITY
217		251
218	struct ev_loop	252	struct ev_loop
219	{	253	{
		254	ev_tstamp ev_rt_now;
		255	#define ev_rt_now ((loop)->ev_rt_now)
220	# define VAR(name,decl) decl;	256	#define VAR(name,decl) decl;
221	# include "ev_vars.h"	257	#include "ev_vars.h"
222	};
223	# undef VAR	258	#undef VAR
		259	};
224	# include "ev_wrap.h"	260	#include "ev_wrap.h"
		261
		262	struct ev_loop default_loop_struct;
		263	static struct ev_loop *default_loop;
225		264
226	#else	265	#else
227		266
		267	ev_tstamp ev_rt_now;
228	# define VAR(name,decl) static decl;	268	#define VAR(name,decl) static decl;
229	# include "ev_vars.h"	269	#include "ev_vars.h"
230	# undef VAR	270	#undef VAR
		271
		272	static int default_loop;
231		273
232	#endif	274	#endif
233		275
234	/*****************************************************************************/	276	/*****************************************************************************/
235		277
236	inline ev_tstamp	278	ev_tstamp
237	ev_time (void)	279	ev_time (void)
238	{	280	{
239	#if EV_USE_REALTIME	281	#if EV_USE_REALTIME
240	struct timespec ts;	282	struct timespec ts;
241	clock_gettime (CLOCK_REALTIME, &ts);	283	clock_gettime (CLOCK_REALTIME, &ts);
…		…
260	#endif	302	#endif
261		303
262	return ev_time ();	304	return ev_time ();
263	}	305	}
264		306
		307	#if EV_MULTIPLICITY
265	ev_tstamp	308	ev_tstamp
266	ev_now (EV_P)	309	ev_now (EV_P)
267	{	310	{
268	return rt_now;	311	return ev_rt_now;
269	}	312	}
		313	#endif
270		314
271	#define array_roundsize(base,n) ((n) \| 4 & ~3)	315	#define array_roundsize(type,n) ((n) \| 4 & ~3)
272		316
273	#define array_needsize(base,cur,cnt,init) \	317	#define array_needsize(type,base,cur,cnt,init) \
274	if (expect_false ((cnt) > cur)) \	318	if (expect_false ((cnt) > cur)) \
275	{ \	319	{ \
276	int newcnt = cur; \	320	int newcnt = cur; \
277	do \	321	do \
278	{ \	322	{ \
279	newcnt = array_roundsize (base, newcnt << 1); \	323	newcnt = array_roundsize (type, newcnt << 1); \
280	} \	324	} \
281	while ((cnt) > newcnt); \	325	while ((cnt) > newcnt); \
282	\	326	\
283	base = ev_realloc (base, sizeof (base) (newcnt)); \	327	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
284	init (base + cur, newcnt - cur); \	328	init (base + cur, newcnt - cur); \
285	cur = newcnt; \	329	cur = newcnt; \
286	}	330	}
287		331
288	#define array_slim(stem) \	332	#define array_slim(type,stem) \
289	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	333	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
290	{ \	334	{ \
291	stem ## max = array_roundsize (stem ## cnt >> 1); \	335	stem ## max = array_roundsize (stem ## cnt >> 1); \
292	base = ev_realloc (base, sizeof (base) (stem ## max)); \	336	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
293	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	337	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
294	}	338	}
295		339
296	#define array_free(stem, idx) \	340	#define array_free(stem, idx) \
297	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	341	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
…		…
309		353
310	++base;	354	++base;
311	}	355	}
312	}	356	}
313		357
314	static void	358	void
315	event (EV_P_ W w, int events)	359	ev_feed_event (EV_P_ void *w, int revents)
316	{	360	{
		361	W w_ = (W)w;
		362
317	if (w->pending)	363	if (w_->pending)
318	{	364	{
319	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	365	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
320	return;	366	return;
321	}	367	}
322		368
323	w->pending = ++pendingcnt [ABSPRI (w)];	369	w_->pending = ++pendingcnt [ABSPRI (w_)];
324	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	370	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
325	pendings [ABSPRI (w)][w->pending - 1].w = w;	371	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
326	pendings [ABSPRI (w)][w->pending - 1].events = events;	372	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
327	}	373	}
328		374
329	static void	375	static void
330	queue_events (EV_P_ W *events, int eventcnt, int type)	376	queue_events (EV_P_ W *events, int eventcnt, int type)
331	{	377	{
332	int i;	378	int i;
333		379
334	for (i = 0; i < eventcnt; ++i)	380	for (i = 0; i < eventcnt; ++i)
335	event (EV_A_ events [i], type);	381	ev_feed_event (EV_A_ events [i], type);
336	}	382	}
337		383
338	static void	384	inline void
339	fd_event (EV_P_ int fd, int events)	385	fd_event (EV_P_ int fd, int revents)
340	{	386	{
341	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
342	struct ev_io *w;	388	struct ev_io *w;
343		389
344	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	390	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
345	{	391	{
346	int ev = w->events & events;	392	int ev = w->events & revents;
347		393
348	if (ev)	394	if (ev)
349	event (EV_A_ (W)w, ev);	395	ev_feed_event (EV_A_ (W)w, ev);
350	}	396	}
		397	}
		398
		399	void
		400	ev_feed_fd_event (EV_P_ int fd, int revents)
		401	{
		402	fd_event (EV_A_ fd, revents);
351	}	403	}
352		404
353	/*****************************************************************************/	405	/*****************************************************************************/
354		406
355	static void	407	static void
…		…
366	int events = 0;	418	int events = 0;
367		419
368	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	420	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
369	events \|= w->events;	421	events \|= w->events;
370		422
		423	#if EV_SELECT_IS_WINSOCKET
		424	if (events)
		425	{
		426	unsigned long argp;
		427	anfd->handle = _get_osfhandle (fd);
		428	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		429	}
		430	#endif
		431
371	anfd->reify = 0;	432	anfd->reify = 0;
372		433
373	method_modify (EV_A_ fd, anfd->events, events);	434	method_modify (EV_A_ fd, anfd->events, events);
374	anfd->events = events;	435	anfd->events = events;
375	}	436	}
…		…
378	}	439	}
379		440
380	static void	441	static void
381	fd_change (EV_P_ int fd)	442	fd_change (EV_P_ int fd)
382	{	443	{
383	if (anfds [fd].reify \|\| fdchangecnt < 0)	444	if (anfds [fd].reify)
384	return;	445	return;
385		446
386	anfds [fd].reify = 1;	447	anfds [fd].reify = 1;
387		448
388	++fdchangecnt;	449	++fdchangecnt;
389	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	450	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
390	fdchanges [fdchangecnt - 1] = fd;	451	fdchanges [fdchangecnt - 1] = fd;
391	}	452	}
392		453
393	static void	454	static void
394	fd_kill (EV_P_ int fd)	455	fd_kill (EV_P_ int fd)
…		…
396	struct ev_io *w;	457	struct ev_io *w;
397		458
398	while ((w = (struct ev_io *)anfds [fd].head))	459	while ((w = (struct ev_io *)anfds [fd].head))
399	{	460	{
400	ev_io_stop (EV_A_ w);	461	ev_io_stop (EV_A_ w);
401	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	462	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
402	}	463	}
		464	}
		465
		466	static int
		467	fd_valid (int fd)
		468	{
		469	#ifdef _WIN32
		470	return _get_osfhandle (fd) != -1;
		471	#else
		472	return fcntl (fd, F_GETFD) != -1;
		473	#endif
403	}	474	}
404		475
405	/* called on EBADF to verify fds */	476	/* called on EBADF to verify fds */
406	static void	477	static void
407	fd_ebadf (EV_P)	478	fd_ebadf (EV_P)
408	{	479	{
409	int fd;	480	int fd;
410		481
411	for (fd = 0; fd < anfdmax; ++fd)	482	for (fd = 0; fd < anfdmax; ++fd)
412	if (anfds [fd].events)	483	if (anfds [fd].events)
413	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	484	if (!fd_valid (fd) == -1 && errno == EBADF)
414	fd_kill (EV_A_ fd);	485	fd_kill (EV_A_ fd);
415	}	486	}
416		487
417	/* called on ENOMEM in select/poll to kill some fds and retry */	488	/* called on ENOMEM in select/poll to kill some fds and retry */
418	static void	489	static void
…		…
426	fd_kill (EV_A_ fd);	497	fd_kill (EV_A_ fd);
427	return;	498	return;
428	}	499	}
429	}	500	}
430		501
431	/* susually called after fork if method needs to re-arm all fds from scratch */	502	/* usually called after fork if method needs to re-arm all fds from scratch */
432	static void	503	static void
433	fd_rearm_all (EV_P)	504	fd_rearm_all (EV_P)
434	{	505	{
435	int fd;	506	int fd;
436		507
…		…
484		555
485	heap [k] = w;	556	heap [k] = w;
486	((W)heap [k])->active = k + 1;	557	((W)heap [k])->active = k + 1;
487	}	558	}
488		559
		560	inline void
		561	adjustheap (WT *heap, int N, int k)
		562	{
		563	upheap (heap, k);
		564	downheap (heap, N, k);
		565	}
		566
489	/*****************************************************************************/	567	/*****************************************************************************/
490		568
491	typedef struct	569	typedef struct
492	{	570	{
493	WL head;	571	WL head;
…		…
514	}	592	}
515		593
516	static void	594	static void
517	sighandler (int signum)	595	sighandler (int signum)
518	{	596	{
519	#if WIN32	597	#if _WIN32
520	signal (signum, sighandler);	598	signal (signum, sighandler);
521	#endif	599	#endif
522		600
523	signals [signum - 1].gotsig = 1;	601	signals [signum - 1].gotsig = 1;
524		602
…		…
529	write (sigpipe [1], &signum, 1);	607	write (sigpipe [1], &signum, 1);
530	errno = old_errno;	608	errno = old_errno;
531	}	609	}
532	}	610	}
533		611
		612	void
		613	ev_feed_signal_event (EV_P_ int signum)
		614	{
		615	WL w;
		616
		617	#if EV_MULTIPLICITY
		618	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		619	#endif
		620
		621	--signum;
		622
		623	if (signum < 0 \|\| signum >= signalmax)
		624	return;
		625
		626	signals [signum].gotsig = 0;
		627
		628	for (w = signals [signum].head; w; w = w->next)
		629	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		630	}
		631
534	static void	632	static void
535	sigcb (EV_P_ struct ev_io *iow, int revents)	633	sigcb (EV_P_ struct ev_io *iow, int revents)
536	{	634	{
537	WL w;
538	int signum;	635	int signum;
539		636
540	read (sigpipe [0], &revents, 1);	637	read (sigpipe [0], &revents, 1);
541	gotsig = 0;	638	gotsig = 0;
542		639
543	for (signum = signalmax; signum--; )	640	for (signum = signalmax; signum--; )
544	if (signals [signum].gotsig)	641	if (signals [signum].gotsig)
545	{	642	ev_feed_signal_event (EV_A_ signum + 1);
546	signals [signum].gotsig = 0;	643	}
547		644
548	for (w = signals [signum].head; w; w = w->next)	645	inline void
549	event (EV_A_ (W)w, EV_SIGNAL);	646	fd_intern (int fd)
550	}	647	{
		648	#ifdef _WIN32
		649	int arg = 1;
		650	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		651	#else
		652	fcntl (fd, F_SETFD, FD_CLOEXEC);
		653	fcntl (fd, F_SETFL, O_NONBLOCK);
		654	#endif
551	}	655	}
552		656
553	static void	657	static void
554	siginit (EV_P)	658	siginit (EV_P)
555	{	659	{
556	#ifndef WIN32	660	fd_intern (sigpipe [0]);
557	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	661	fd_intern (sigpipe [1]);
558	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
559
560	/* rather than sort out wether we really need nb, set it */
561	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
562	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
563	#endif
564		662
565	ev_io_set (&sigev, sigpipe [0], EV_READ);	663	ev_io_set (&sigev, sigpipe [0], EV_READ);
566	ev_io_start (EV_A_ &sigev);	664	ev_io_start (EV_A_ &sigev);
567	ev_unref (EV_A); /* child watcher should not keep loop alive */	665	ev_unref (EV_A); /* child watcher should not keep loop alive */
568	}	666	}
569		667
570	/*****************************************************************************/	668	/*****************************************************************************/
571		669
572	#ifndef WIN32
573
574	static struct ev_child *childs [PID_HASHSIZE];	670	static struct ev_child *childs [PID_HASHSIZE];
		671
		672	#ifndef _WIN32
		673
575	static struct ev_signal childev;	674	static struct ev_signal childev;
576		675
577	#ifndef WCONTINUED	676	#ifndef WCONTINUED
578	# define WCONTINUED 0	677	# define WCONTINUED 0
579	#endif	678	#endif
…		…
587	if (w->pid == pid \|\| !w->pid)	686	if (w->pid == pid \|\| !w->pid)
588	{	687	{
589	ev_priority (w) = ev_priority (sw); /* need to do it now */	688	ev_priority (w) = ev_priority (sw); /* need to do it now */
590	w->rpid = pid;	689	w->rpid = pid;
591	w->rstatus = status;	690	w->rstatus = status;
592	event (EV_A_ (W)w, EV_CHILD);	691	ev_feed_event (EV_A_ (W)w, EV_CHILD);
593	}	692	}
594	}	693	}
595		694
596	static void	695	static void
597	childcb (EV_P_ struct ev_signal *sw, int revents)	696	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
599	int pid, status;	698	int pid, status;
600		699
601	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	700	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
602	{	701	{
603	/* make sure we are called again until all childs have been reaped */	702	/* make sure we are called again until all childs have been reaped */
604	event (EV_A_ (W)sw, EV_SIGNAL);	703	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
605		704
606	child_reap (EV_A_ sw, pid, pid, status);	705	child_reap (EV_A_ sw, pid, pid, status);
607	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	706	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
608	}	707	}
609	}	708	}
…		…
639		738
640	/* return true if we are running with elevated privileges and should ignore env variables */	739	/* return true if we are running with elevated privileges and should ignore env variables */
641	static int	740	static int
642	enable_secure (void)	741	enable_secure (void)
643	{	742	{
644	#ifdef WIN32	743	#ifdef _WIN32
645	return 0;	744	return 0;
646	#else	745	#else
647	return getuid () != geteuid ()	746	return getuid () != geteuid ()
648	\|\| getgid () != getegid ();	747	\|\| getgid () != getegid ();
649	#endif	748	#endif
…		…
666	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	765	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
667	have_monotonic = 1;	766	have_monotonic = 1;
668	}	767	}
669	#endif	768	#endif
670		769
671	rt_now = ev_time ();	770	ev_rt_now = ev_time ();
672	mn_now = get_clock ();	771	mn_now = get_clock ();
673	now_floor = mn_now;	772	now_floor = mn_now;
674	rtmn_diff = rt_now - mn_now;	773	rtmn_diff = ev_rt_now - mn_now;
675		774
676	if (methods == EVMETHOD_AUTO)	775	if (methods == EVMETHOD_AUTO)
677	if (!enable_secure () && getenv ("LIBEV_METHODS"))	776	if (!enable_secure () && getenv ("LIBEV_METHODS"))
678	methods = atoi (getenv ("LIBEV_METHODS"));	777	methods = atoi (getenv ("LIBEV_METHODS"));
679	else	778	else
680	methods = EVMETHOD_ANY;	779	methods = EVMETHOD_ANY;
681		780
682	method = 0;	781	method = 0;
683	#if EV_USE_WIN32
684	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
685	#endif
686	#if EV_USE_KQUEUE	782	#if EV_USE_KQUEUE
687	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	783	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
688	#endif	784	#endif
689	#if EV_USE_EPOLL	785	#if EV_USE_EPOLL
690	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	786	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
693	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	789	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
694	#endif	790	#endif
695	#if EV_USE_SELECT	791	#if EV_USE_SELECT
696	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	792	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
697	#endif	793	#endif
		794
		795	ev_init (&sigev, sigcb);
		796	ev_set_priority (&sigev, EV_MAXPRI);
698	}	797	}
699	}	798	}
700		799
701	void	800	void
702	loop_destroy (EV_P)	801	loop_destroy (EV_P)
703	{	802	{
704	int i;	803	int i;
705		804
706	#if EV_USE_WIN32
707	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
708	#endif
709	#if EV_USE_KQUEUE	805	#if EV_USE_KQUEUE
710	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	806	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
711	#endif	807	#endif
712	#if EV_USE_EPOLL	808	#if EV_USE_EPOLL
713	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	809	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
720	#endif	816	#endif
721		817
722	for (i = NUMPRI; i--; )	818	for (i = NUMPRI; i--; )
723	array_free (pending, [i]);	819	array_free (pending, [i]);
724		820
		821	/* have to use the microsoft-never-gets-it-right macro */
725	array_free (fdchange, );	822	array_free (fdchange, EMPTY);
726	array_free (timer, );	823	array_free (timer, EMPTY);
		824	#if EV_PERIODICS
727	array_free (periodic, );	825	array_free (periodic, EMPTY);
		826	#endif
728	array_free (idle, );	827	array_free (idle, EMPTY);
729	array_free (prepare, );	828	array_free (prepare, EMPTY);
730	array_free (check, );	829	array_free (check, EMPTY);
731		830
732	method = 0;	831	method = 0;
733	/TODO/
734	}	832	}
735		833
736	void	834	static void
737	loop_fork (EV_P)	835	loop_fork (EV_P)
738	{	836	{
739	/TODO/
740	#if EV_USE_EPOLL	837	#if EV_USE_EPOLL
741	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	838	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
742	#endif	839	#endif
743	#if EV_USE_KQUEUE	840	#if EV_USE_KQUEUE
744	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	841	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
745	#endif	842	#endif
		843
		844	if (ev_is_active (&sigev))
		845	{
		846	/* default loop */
		847
		848	ev_ref (EV_A);
		849	ev_io_stop (EV_A_ &sigev);
		850	close (sigpipe [0]);
		851	close (sigpipe [1]);
		852
		853	while (pipe (sigpipe))
		854	syserr ("(libev) error creating pipe");
		855
		856	siginit (EV_A);
		857	}
		858
		859	postfork = 0;
746	}	860	}
747		861
748	#if EV_MULTIPLICITY	862	#if EV_MULTIPLICITY
749	struct ev_loop *	863	struct ev_loop *
750	ev_loop_new (int methods)	864	ev_loop_new (int methods)
…		…
769	}	883	}
770		884
771	void	885	void
772	ev_loop_fork (EV_P)	886	ev_loop_fork (EV_P)
773	{	887	{
774	loop_fork (EV_A);	888	postfork = 1;
775	}	889	}
776		890
777	#endif	891	#endif
778		892
779	#if EV_MULTIPLICITY	893	#if EV_MULTIPLICITY
780	struct ev_loop default_loop_struct;
781	static struct ev_loop *default_loop;
782
783	struct ev_loop *	894	struct ev_loop *
784	#else	895	#else
785	static int default_loop;
786
787	int	896	int
788	#endif	897	#endif
789	ev_default_loop (int methods)	898	ev_default_loop (int methods)
790	{	899	{
791	if (sigpipe [0] == sigpipe [1])	900	if (sigpipe [0] == sigpipe [1])
…		…
802		911
803	loop_init (EV_A_ methods);	912	loop_init (EV_A_ methods);
804		913
805	if (ev_method (EV_A))	914	if (ev_method (EV_A))
806	{	915	{
807	ev_watcher_init (&sigev, sigcb);
808	ev_set_priority (&sigev, EV_MAXPRI);
809	siginit (EV_A);	916	siginit (EV_A);
810		917
811	#ifndef WIN32	918	#ifndef _WIN32
812	ev_signal_init (&childev, childcb, SIGCHLD);	919	ev_signal_init (&childev, childcb, SIGCHLD);
813	ev_set_priority (&childev, EV_MAXPRI);	920	ev_set_priority (&childev, EV_MAXPRI);
814	ev_signal_start (EV_A_ &childev);	921	ev_signal_start (EV_A_ &childev);
815	ev_unref (EV_A); /* child watcher should not keep loop alive */	922	ev_unref (EV_A); /* child watcher should not keep loop alive */
816	#endif	923	#endif
…		…
827	{	934	{
828	#if EV_MULTIPLICITY	935	#if EV_MULTIPLICITY
829	struct ev_loop *loop = default_loop;	936	struct ev_loop *loop = default_loop;
830	#endif	937	#endif
831		938
		939	#ifndef _WIN32
832	ev_ref (EV_A); /* child watcher */	940	ev_ref (EV_A); /* child watcher */
833	ev_signal_stop (EV_A_ &childev);	941	ev_signal_stop (EV_A_ &childev);
		942	#endif
834		943
835	ev_ref (EV_A); /* signal watcher */	944	ev_ref (EV_A); /* signal watcher */
836	ev_io_stop (EV_A_ &sigev);	945	ev_io_stop (EV_A_ &sigev);
837		946
838	close (sigpipe [0]); sigpipe [0] = 0;	947	close (sigpipe [0]); sigpipe [0] = 0;
…		…
846	{	955	{
847	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = default_loop;
849	#endif	958	#endif
850		959
851	loop_fork (EV_A);	960	if (method)
852		961	postfork = 1;
853	ev_io_stop (EV_A_ &sigev);
854	close (sigpipe [0]);
855	close (sigpipe [1]);
856	pipe (sigpipe);
857
858	ev_ref (EV_A); /* signal watcher */
859	siginit (EV_A);
860	}	962	}
861		963
862	/*****************************************************************************/	964	/*****************************************************************************/
		965
		966	static int
		967	any_pending (EV_P)
		968	{
		969	int pri;
		970
		971	for (pri = NUMPRI; pri--; )
		972	if (pendingcnt [pri])
		973	return 1;
		974
		975	return 0;
		976	}
863		977
864	static void	978	static void
865	call_pending (EV_P)	979	call_pending (EV_P)
866	{	980	{
867	int pri;	981	int pri;
…		…
872	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	986	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
873		987
874	if (p->w)	988	if (p->w)
875	{	989	{
876	p->w->pending = 0;	990	p->w->pending = 0;
877	p->w->cb (EV_A_ p->w, p->events);	991	EV_CB_INVOKE (p->w, p->events);
878	}	992	}
879	}	993	}
880	}	994	}
881		995
882	static void	996	static void
…		…
890		1004
891	/* first reschedule or stop timer */	1005	/* first reschedule or stop timer */
892	if (w->repeat)	1006	if (w->repeat)
893	{	1007	{
894	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1008	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1009
895	((WT)w)->at = mn_now + w->repeat;	1010	((WT)w)->at += w->repeat;
		1011	if (((WT)w)->at < mn_now)
		1012	((WT)w)->at = mn_now;
		1013
896	downheap ((WT *)timers, timercnt, 0);	1014	downheap ((WT *)timers, timercnt, 0);
897	}	1015	}
898	else	1016	else
899	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1017	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
900		1018
901	event (EV_A_ (W)w, EV_TIMEOUT);	1019	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
902	}	1020	}
903	}	1021	}
904		1022
		1023	#if EV_PERIODICS
905	static void	1024	static void
906	periodics_reify (EV_P)	1025	periodics_reify (EV_P)
907	{	1026	{
908	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1027	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
909	{	1028	{
910	struct ev_periodic *w = periodics [0];	1029	struct ev_periodic *w = periodics [0];
911		1030
912	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1031	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
913		1032
914	/* first reschedule or stop timer */	1033	/* first reschedule or stop timer */
915	if (w->interval)	1034	if (w->reschedule_cb)
916	{	1035	{
		1036	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1037
		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	{
917	((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;
918	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));
919	downheap ((WT *)periodics, periodiccnt, 0);	1045	downheap ((WT *)periodics, periodiccnt, 0);
920	}	1046	}
921	else	1047	else
922	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1048	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
923		1049
924	event (EV_A_ (W)w, EV_PERIODIC);	1050	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
925	}	1051	}
926	}	1052	}
927		1053
928	static void	1054	static void
929	periodics_reschedule (EV_P)	1055	periodics_reschedule (EV_P)
…		…
933	/* adjust periodics after time jump */	1059	/* adjust periodics after time jump */
934	for (i = 0; i < periodiccnt; ++i)	1060	for (i = 0; i < periodiccnt; ++i)
935	{	1061	{
936	struct ev_periodic *w = periodics [i];	1062	struct ev_periodic *w = periodics [i];
937		1063
		1064	if (w->reschedule_cb)
		1065	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
938	if (w->interval)	1066	else if (w->interval)
939	{
940	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;
941
942	if (fabs (diff) >= 1e-4)
943	{
944	ev_periodic_stop (EV_A_ w);
945	ev_periodic_start (EV_A_ w);
946
947	i = 0; /* restart loop, inefficient, but time jumps should be rare */
948	}
949	}
950	}	1068	}
		1069
		1070	/* now rebuild the heap */
		1071	for (i = periodiccnt >> 1; i--; )
		1072	downheap ((WT *)periodics, periodiccnt, i);
951	}	1073	}
		1074	#endif
952		1075
953	inline int	1076	inline int
954	time_update_monotonic (EV_P)	1077	time_update_monotonic (EV_P)
955	{	1078	{
956	mn_now = get_clock ();	1079	mn_now = get_clock ();
957		1080
958	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1081	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
959	{	1082	{
960	rt_now = rtmn_diff + mn_now;	1083	ev_rt_now = rtmn_diff + mn_now;
961	return 0;	1084	return 0;
962	}	1085	}
963	else	1086	else
964	{	1087	{
965	now_floor = mn_now;	1088	now_floor = mn_now;
966	rt_now = ev_time ();	1089	ev_rt_now = ev_time ();
967	return 1;	1090	return 1;
968	}	1091	}
969	}	1092	}
970		1093
971	static void	1094	static void
…		…
980	{	1103	{
981	ev_tstamp odiff = rtmn_diff;	1104	ev_tstamp odiff = rtmn_diff;
982		1105
983	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 */
984	{	1107	{
985	rtmn_diff = rt_now - mn_now;	1108	rtmn_diff = ev_rt_now - mn_now;
986		1109
987	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1110	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
988	return; /* all is well */	1111	return; /* all is well */
989		1112
990	rt_now = ev_time ();	1113	ev_rt_now = ev_time ();
991	mn_now = get_clock ();	1114	mn_now = get_clock ();
992	now_floor = mn_now;	1115	now_floor = mn_now;
993	}	1116	}
994		1117
		1118	# if EV_PERIODICS
995	periodics_reschedule (EV_A);	1119	periodics_reschedule (EV_A);
		1120	# endif
996	/* no timer adjustment, as the monotonic clock doesn't jump */	1121	/* no timer adjustment, as the monotonic clock doesn't jump */
997	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1122	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
998	}	1123	}
999	}	1124	}
1000	else	1125	else
1001	#endif	1126	#endif
1002	{	1127	{
1003	rt_now = ev_time ();	1128	ev_rt_now = ev_time ();
1004		1129
1005	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))
1006	{	1131	{
		1132	#if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1133	periodics_reschedule (EV_A);
		1134	#endif
1008		1135
1009	/* 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 */
1010	for (i = 0; i < timercnt; ++i)	1137	for (i = 0; i < timercnt; ++i)
1011	((WT)timers [i])->at += rt_now - mn_now;	1138	((WT)timers [i])->at += ev_rt_now - mn_now;
1012	}	1139	}
1013		1140
1014	mn_now = rt_now;	1141	mn_now = ev_rt_now;
1015	}	1142	}
1016	}	1143	}
1017		1144
1018	void	1145	void
1019	ev_ref (EV_P)	1146	ev_ref (EV_P)
…		…
1042	{	1169	{
1043	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1170	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1044	call_pending (EV_A);	1171	call_pending (EV_A);
1045	}	1172	}
1046		1173
		1174	/* we might have forked, so reify kernel state if necessary */
		1175	if (expect_false (postfork))
		1176	loop_fork (EV_A);
		1177
1047	/* update fd-related kernel structures */	1178	/* update fd-related kernel structures */
1048	fd_reify (EV_A);	1179	fd_reify (EV_A);
1049		1180
1050	/* calculate blocking time */	1181	/* calculate blocking time */
1051		1182
1052	/* 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
1053	always have timers, we just calculate it always */	1184	always have timers, we just calculate it always */
1054	#if EV_USE_MONOTONIC	1185	#if EV_USE_MONOTONIC
1055	if (expect_true (have_monotonic))	1186	if (expect_true (have_monotonic))
1056	time_update_monotonic (EV_A);	1187	time_update_monotonic (EV_A);
1057	else	1188	else
1058	#endif	1189	#endif
1059	{	1190	{
1060	rt_now = ev_time ();	1191	ev_rt_now = ev_time ();
1061	mn_now = rt_now;	1192	mn_now = ev_rt_now;
1062	}	1193	}
1063		1194
1064	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1195	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1065	block = 0.;	1196	block = 0.;
1066	else	1197	else
…		…
1071	{	1202	{
1072	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1203	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1073	if (block > to) block = to;	1204	if (block > to) block = to;
1074	}	1205	}
1075		1206
		1207	#if EV_PERIODICS
1076	if (periodiccnt)	1208	if (periodiccnt)
1077	{	1209	{
1078	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1210	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1079	if (block > to) block = to;	1211	if (block > to) block = to;
1080	}	1212	}
		1213	#endif
1081		1214
1082	if (block < 0.) block = 0.;	1215	if (block < 0.) block = 0.;
1083	}	1216	}
1084		1217
1085	method_poll (EV_A_ block);	1218	method_poll (EV_A_ block);
1086		1219
1087	/* update rt_now, do magic */	1220	/* update ev_rt_now, do magic */
1088	time_update (EV_A);	1221	time_update (EV_A);
1089		1222
1090	/* queue pending timers and reschedule them */	1223	/* queue pending timers and reschedule them */
1091	timers_reify (EV_A); /* relative timers called last */	1224	timers_reify (EV_A); /* relative timers called last */
		1225	#if EV_PERIODICS
1092	periodics_reify (EV_A); /* absolute timers called first */	1226	periodics_reify (EV_A); /* absolute timers called first */
		1227	#endif
1093		1228
1094	/* queue idle watchers unless io or timers are pending */	1229	/* queue idle watchers unless io or timers are pending */
1095	if (!pendingcnt)	1230	if (idlecnt && !any_pending (EV_A))
1096	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1231	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1097		1232
1098	/* queue check watchers, to be executed first */	1233	/* queue check watchers, to be executed first */
1099	if (checkcnt)	1234	if (checkcnt)
1100	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1235	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1175	return;	1310	return;
1176		1311
1177	assert (("ev_io_start called with negative fd", fd >= 0));	1312	assert (("ev_io_start called with negative fd", fd >= 0));
1178		1313
1179	ev_start (EV_A_ (W)w, 1);	1314	ev_start (EV_A_ (W)w, 1);
1180	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1315	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1181	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1316	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1182		1317
1183	fd_change (EV_A_ fd);	1318	fd_change (EV_A_ fd);
1184	}	1319	}
1185		1320
…		…
1188	{	1323	{
1189	ev_clear_pending (EV_A_ (W)w);	1324	ev_clear_pending (EV_A_ (W)w);
1190	if (!ev_is_active (w))	1325	if (!ev_is_active (w))
1191	return;	1326	return;
1192		1327
		1328	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1329
1193	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1330	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1194	ev_stop (EV_A_ (W)w);	1331	ev_stop (EV_A_ (W)w);
1195		1332
1196	fd_change (EV_A_ w->fd);	1333	fd_change (EV_A_ w->fd);
1197	}	1334	}
…		…
1205	((WT)w)->at += mn_now;	1342	((WT)w)->at += mn_now;
1206		1343
1207	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1344	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1208		1345
1209	ev_start (EV_A_ (W)w, ++timercnt);	1346	ev_start (EV_A_ (W)w, ++timercnt);
1210	array_needsize (timers, timermax, timercnt, );	1347	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1211	timers [timercnt - 1] = w;	1348	timers [timercnt - 1] = w;
1212	upheap ((WT *)timers, timercnt - 1);	1349	upheap ((WT *)timers, timercnt - 1);
1213		1350
1214	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1351	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1215	}	1352	}
…		…
1224	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1361	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1225		1362
1226	if (((W)w)->active < timercnt--)	1363	if (((W)w)->active < timercnt--)
1227	{	1364	{
1228	timers [((W)w)->active - 1] = timers [timercnt];	1365	timers [((W)w)->active - 1] = timers [timercnt];
1229	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1366	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1230	}	1367	}
1231		1368
1232	((WT)w)->at = w->repeat;	1369	((WT)w)->at -= mn_now;
1233		1370
1234	ev_stop (EV_A_ (W)w);	1371	ev_stop (EV_A_ (W)w);
1235	}	1372	}
1236		1373
1237	void	1374	void
…		…
1240	if (ev_is_active (w))	1377	if (ev_is_active (w))
1241	{	1378	{
1242	if (w->repeat)	1379	if (w->repeat)
1243	{	1380	{
1244	((WT)w)->at = mn_now + w->repeat;	1381	((WT)w)->at = mn_now + w->repeat;
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1382	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1383	}
1247	else	1384	else
1248	ev_timer_stop (EV_A_ w);	1385	ev_timer_stop (EV_A_ w);
1249	}	1386	}
1250	else if (w->repeat)	1387	else if (w->repeat)
1251	ev_timer_start (EV_A_ w);	1388	ev_timer_start (EV_A_ w);
1252	}	1389	}
1253		1390
		1391	#if EV_PERIODICS
1254	void	1392	void
1255	ev_periodic_start (EV_P_ struct ev_periodic *w)	1393	ev_periodic_start (EV_P_ struct ev_periodic *w)
1256	{	1394	{
1257	if (ev_is_active (w))	1395	if (ev_is_active (w))
1258	return;	1396	return;
1259		1397
		1398	if (w->reschedule_cb)
		1399	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1400	else if (w->interval)
		1401	{
1260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1402	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1261
1262	/* this formula differs from the one in periodic_reify because we do not always round up */	1403	/* this formula differs from the one in periodic_reify because we do not always round up */
1263	if (w->interval)
1264	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1404	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1405	}
1265		1406
1266	ev_start (EV_A_ (W)w, ++periodiccnt);	1407	ev_start (EV_A_ (W)w, ++periodiccnt);
1267	array_needsize (periodics, periodicmax, periodiccnt, );	1408	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1268	periodics [periodiccnt - 1] = w;	1409	periodics [periodiccnt - 1] = w;
1269	upheap ((WT *)periodics, periodiccnt - 1);	1410	upheap ((WT *)periodics, periodiccnt - 1);
1270		1411
1271	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1412	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1272	}	1413	}
…		…
1281	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1422	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1282		1423
1283	if (((W)w)->active < periodiccnt--)	1424	if (((W)w)->active < periodiccnt--)
1284	{	1425	{
1285	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1426	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1286	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1427	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1287	}	1428	}
1288		1429
1289	ev_stop (EV_A_ (W)w);	1430	ev_stop (EV_A_ (W)w);
1290	}	1431	}
1291		1432
1292	void	1433	void
		1434	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1435	{
		1436	/* TODO: use adjustheap and recalculation */
		1437	ev_periodic_stop (EV_A_ w);
		1438	ev_periodic_start (EV_A_ w);
		1439	}
		1440	#endif
		1441
		1442	void
1293	ev_idle_start (EV_P_ struct ev_idle *w)	1443	ev_idle_start (EV_P_ struct ev_idle *w)
1294	{	1444	{
1295	if (ev_is_active (w))	1445	if (ev_is_active (w))
1296	return;	1446	return;
1297		1447
1298	ev_start (EV_A_ (W)w, ++idlecnt);	1448	ev_start (EV_A_ (W)w, ++idlecnt);
1299	array_needsize (idles, idlemax, idlecnt, );	1449	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1300	idles [idlecnt - 1] = w;	1450	idles [idlecnt - 1] = w;
1301	}	1451	}
1302		1452
1303	void	1453	void
1304	ev_idle_stop (EV_P_ struct ev_idle *w)	1454	ev_idle_stop (EV_P_ struct ev_idle *w)
1305	{	1455	{
1306	ev_clear_pending (EV_A_ (W)w);	1456	ev_clear_pending (EV_A_ (W)w);
1307	if (ev_is_active (w))	1457	if (!ev_is_active (w))
1308	return;	1458	return;
1309		1459
1310	idles [((W)w)->active - 1] = idles [--idlecnt];	1460	idles [((W)w)->active - 1] = idles [--idlecnt];
1311	ev_stop (EV_A_ (W)w);	1461	ev_stop (EV_A_ (W)w);
1312	}	1462	}
…		…
1316	{	1466	{
1317	if (ev_is_active (w))	1467	if (ev_is_active (w))
1318	return;	1468	return;
1319		1469
1320	ev_start (EV_A_ (W)w, ++preparecnt);	1470	ev_start (EV_A_ (W)w, ++preparecnt);
1321	array_needsize (prepares, preparemax, preparecnt, );	1471	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1322	prepares [preparecnt - 1] = w;	1472	prepares [preparecnt - 1] = w;
1323	}	1473	}
1324		1474
1325	void	1475	void
1326	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1476	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1327	{	1477	{
1328	ev_clear_pending (EV_A_ (W)w);	1478	ev_clear_pending (EV_A_ (W)w);
1329	if (ev_is_active (w))	1479	if (!ev_is_active (w))
1330	return;	1480	return;
1331		1481
1332	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1482	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1333	ev_stop (EV_A_ (W)w);	1483	ev_stop (EV_A_ (W)w);
1334	}	1484	}
…		…
1338	{	1488	{
1339	if (ev_is_active (w))	1489	if (ev_is_active (w))
1340	return;	1490	return;
1341		1491
1342	ev_start (EV_A_ (W)w, ++checkcnt);	1492	ev_start (EV_A_ (W)w, ++checkcnt);
1343	array_needsize (checks, checkmax, checkcnt, );	1493	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1344	checks [checkcnt - 1] = w;	1494	checks [checkcnt - 1] = w;
1345	}	1495	}
1346		1496
1347	void	1497	void
1348	ev_check_stop (EV_P_ struct ev_check *w)	1498	ev_check_stop (EV_P_ struct ev_check *w)
1349	{	1499	{
1350	ev_clear_pending (EV_A_ (W)w);	1500	ev_clear_pending (EV_A_ (W)w);
1351	if (ev_is_active (w))	1501	if (!ev_is_active (w))
1352	return;	1502	return;
1353		1503
1354	checks [((W)w)->active - 1] = checks [--checkcnt];	1504	checks [((W)w)->active - 1] = checks [--checkcnt];
1355	ev_stop (EV_A_ (W)w);	1505	ev_stop (EV_A_ (W)w);
1356	}	1506	}
…		…
1369	return;	1519	return;
1370		1520
1371	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1521	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1372		1522
1373	ev_start (EV_A_ (W)w, 1);	1523	ev_start (EV_A_ (W)w, 1);
1374	array_needsize (signals, signalmax, w->signum, signals_init);	1524	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1375	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1525	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1376		1526
1377	if (!((WL)w)->next)	1527	if (!((WL)w)->next)
1378	{	1528	{
1379	#if WIN32	1529	#if _WIN32
1380	signal (w->signum, sighandler);	1530	signal (w->signum, sighandler);
1381	#else	1531	#else
1382	struct sigaction sa;	1532	struct sigaction sa;
1383	sa.sa_handler = sighandler;	1533	sa.sa_handler = sighandler;
1384	sigfillset (&sa.sa_mask);	1534	sigfillset (&sa.sa_mask);
…		…
1417		1567
1418	void	1568	void
1419	ev_child_stop (EV_P_ struct ev_child *w)	1569	ev_child_stop (EV_P_ struct ev_child *w)
1420	{	1570	{
1421	ev_clear_pending (EV_A_ (W)w);	1571	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1572	if (!ev_is_active (w))
1423	return;	1573	return;
1424		1574
1425	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1575	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1426	ev_stop (EV_A_ (W)w);	1576	ev_stop (EV_A_ (W)w);
1427	}	1577	}
…		…
1462	}	1612	}
1463		1613
1464	void	1614	void
1465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1615	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1466	{	1616	{
1467	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1617	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1468		1618
1469	if (!once)	1619	if (!once)
1470	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1620	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1471	else	1621	else
1472	{	1622	{
1473	once->cb = cb;	1623	once->cb = cb;
1474	once->arg = arg;	1624	once->arg = arg;
1475		1625
1476	ev_watcher_init (&once->io, once_cb_io);	1626	ev_init (&once->io, once_cb_io);
1477	if (fd >= 0)	1627	if (fd >= 0)
1478	{	1628	{
1479	ev_io_set (&once->io, fd, events);	1629	ev_io_set (&once->io, fd, events);
1480	ev_io_start (EV_A_ &once->io);	1630	ev_io_start (EV_A_ &once->io);
1481	}	1631	}
1482		1632
1483	ev_watcher_init (&once->to, once_cb_to);	1633	ev_init (&once->to, once_cb_to);
1484	if (timeout >= 0.)	1634	if (timeout >= 0.)
1485	{	1635	{
1486	ev_timer_set (&once->to, timeout, 0.);	1636	ev_timer_set (&once->to, timeout, 0.);
1487	ev_timer_start (EV_A_ &once->to);	1637	ev_timer_start (EV_A_ &once->to);
1488	}	1638	}
1489	}	1639	}
1490	}	1640	}
1491		1641
		1642	#ifdef __cplusplus
		1643	}
		1644	#endif
		1645

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Comparing libev/ev.c (file contents): Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs. Revision 1.107 by root, Mon Nov 12 01:20:25 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs.
Revision 1.107 by root, Mon Nov 12 01:20:25 2007 UTC