[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 1.103 by root, Mon Nov 12 00:31:08 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
…		…
90	# define EV_USE_EPOLL 0	107	# define EV_USE_EPOLL 0
91	#endif	108	#endif
92		109
93	#ifndef EV_USE_KQUEUE	110	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	111	# define EV_USE_KQUEUE 0
95	#endif
96
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	112	#endif
104		113
105	#ifndef EV_USE_REALTIME	114	#ifndef EV_USE_REALTIME
106	# define EV_USE_REALTIME 1	115	# define EV_USE_REALTIME 1
107	#endif	116	#endif
…		…
114	#endif	123	#endif
115		124
116	#ifndef CLOCK_REALTIME	125	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	126	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	127	# define EV_USE_REALTIME 0
		128	#endif
		129
		130	#if EV_SELECT_IS_WINSOCKET
		131	# include <winsock.h>
119	#endif	132	#endif
120		133
121	/**/	134	/**/
122		135
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	136	#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) */	137	#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 */	138	#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 */	139	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		140
		141	#ifdef EV_H
		142	# include EV_H
		143	#else
128	#include "ev.h"	144	# include "ev.h"
		145	#endif
129		146
130	#if __GNUC__ >= 3	147	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	148	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	149	# define inline inline
133	#else	150	#else
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	156	#define expect_true(expr) expect ((expr) != 0, 1)
140		157
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	158	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	159	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		160
		161	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		162
144	typedef struct ev_watcher *W;	163	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	164	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	165	typedef struct ev_watcher_time *WT;
147		166
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	167	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		168
150	#if WIN32	169	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	170	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	171	#endif
155		172
156	/*****************************************************************************/	173	/*****************************************************************************/
157		174
158	static void (*syserr_cb)(void);	175	static void (syserr_cb)(const char msg);
159		176
160	void ev_set_syserr_cb (void (*cb)(void))	177	void ev_set_syserr_cb (void (cb)(const char msg))
161	{	178	{
162	syserr_cb = cb;	179	syserr_cb = cb;
163	}	180	}
164		181
165	static void	182	static void
166	syserr (void)	183	syserr (const char *msg)
167	{	184	{
		185	if (!msg)
		186	msg = "(libev) system error";
		187
168	if (syserr_cb)	188	if (syserr_cb)
169	syserr_cb ();	189	syserr_cb (msg);
170	else	190	else
171	{	191	{
172	perror ("libev");	192	perror (msg);
173	abort ();	193	abort ();
174	}	194	}
175	}	195	}
176		196
177	static void (alloc)(void *ptr, long size);	197	static void (alloc)(void *ptr, long size);
…		…
203	typedef struct	223	typedef struct
204	{	224	{
205	WL head;	225	WL head;
206	unsigned char events;	226	unsigned char events;
207	unsigned char reify;	227	unsigned char reify;
		228	#if EV_SELECT_IS_WINSOCKET
		229	SOCKET handle;
		230	#endif
208	} ANFD;	231	} ANFD;
209		232
210	typedef struct	233	typedef struct
211	{	234	{
212	W w;	235	W w;
213	int events;	236	int events;
214	} ANPENDING;	237	} ANPENDING;
215		238
216	#if EV_MULTIPLICITY	239	#if EV_MULTIPLICITY
217		240
218	struct ev_loop	241	struct ev_loop
219	{	242	{
		243	ev_tstamp ev_rt_now;
		244	#define ev_rt_now ((loop)->ev_rt_now)
220	# define VAR(name,decl) decl;	245	#define VAR(name,decl) decl;
221	# include "ev_vars.h"	246	#include "ev_vars.h"
222	};
223	# undef VAR	247	#undef VAR
		248	};
224	# include "ev_wrap.h"	249	#include "ev_wrap.h"
		250
		251	struct ev_loop default_loop_struct;
		252	static struct ev_loop *default_loop;
225		253
226	#else	254	#else
227		255
		256	ev_tstamp ev_rt_now;
228	# define VAR(name,decl) static decl;	257	#define VAR(name,decl) static decl;
229	# include "ev_vars.h"	258	#include "ev_vars.h"
230	# undef VAR	259	#undef VAR
		260
		261	static int default_loop;
231		262
232	#endif	263	#endif
233		264
234	/*****************************************************************************/	265	/*****************************************************************************/
235		266
236	inline ev_tstamp	267	ev_tstamp
237	ev_time (void)	268	ev_time (void)
238	{	269	{
239	#if EV_USE_REALTIME	270	#if EV_USE_REALTIME
240	struct timespec ts;	271	struct timespec ts;
241	clock_gettime (CLOCK_REALTIME, &ts);	272	clock_gettime (CLOCK_REALTIME, &ts);
…		…
260	#endif	291	#endif
261		292
262	return ev_time ();	293	return ev_time ();
263	}	294	}
264		295
		296	#if EV_MULTIPLICITY
265	ev_tstamp	297	ev_tstamp
266	ev_now (EV_P)	298	ev_now (EV_P)
267	{	299	{
268	return rt_now;	300	return ev_rt_now;
269	}	301	}
		302	#endif
270		303
271	#define array_roundsize(base,n) ((n) \| 4 & ~3)	304	#define array_roundsize(type,n) ((n) \| 4 & ~3)
272		305
273	#define array_needsize(base,cur,cnt,init) \	306	#define array_needsize(type,base,cur,cnt,init) \
274	if (expect_false ((cnt) > cur)) \	307	if (expect_false ((cnt) > cur)) \
275	{ \	308	{ \
276	int newcnt = cur; \	309	int newcnt = cur; \
277	do \	310	do \
278	{ \	311	{ \
279	newcnt = array_roundsize (base, newcnt << 1); \	312	newcnt = array_roundsize (type, newcnt << 1); \
280	} \	313	} \
281	while ((cnt) > newcnt); \	314	while ((cnt) > newcnt); \
282	\	315	\
283	base = ev_realloc (base, sizeof (base) (newcnt)); \	316	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
284	init (base + cur, newcnt - cur); \	317	init (base + cur, newcnt - cur); \
285	cur = newcnt; \	318	cur = newcnt; \
286	}	319	}
287		320
288	#define array_slim(stem) \	321	#define array_slim(type,stem) \
289	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	322	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
290	{ \	323	{ \
291	stem ## max = array_roundsize (stem ## cnt >> 1); \	324	stem ## max = array_roundsize (stem ## cnt >> 1); \
292	base = ev_realloc (base, sizeof (base) (stem ## max)); \	325	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
293	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	326	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
294	}	327	}
295		328
296	#define array_free(stem, idx) \	329	#define array_free(stem, idx) \
297	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	330	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
…		…
309		342
310	++base;	343	++base;
311	}	344	}
312	}	345	}
313		346
314	static void	347	void
315	event (EV_P_ W w, int events)	348	ev_feed_event (EV_P_ void *w, int revents)
316	{	349	{
		350	W w_ = (W)w;
		351
317	if (w->pending)	352	if (w_->pending)
318	{	353	{
319	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	354	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
320	return;	355	return;
321	}	356	}
322		357
323	w->pending = ++pendingcnt [ABSPRI (w)];	358	w_->pending = ++pendingcnt [ABSPRI (w_)];
324	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	359	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
325	pendings [ABSPRI (w)][w->pending - 1].w = w;	360	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
326	pendings [ABSPRI (w)][w->pending - 1].events = events;	361	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
327	}	362	}
328		363
329	static void	364	static void
330	queue_events (EV_P_ W *events, int eventcnt, int type)	365	queue_events (EV_P_ W *events, int eventcnt, int type)
331	{	366	{
332	int i;	367	int i;
333		368
334	for (i = 0; i < eventcnt; ++i)	369	for (i = 0; i < eventcnt; ++i)
335	event (EV_A_ events [i], type);	370	ev_feed_event (EV_A_ events [i], type);
336	}	371	}
337		372
338	static void	373	inline void
339	fd_event (EV_P_ int fd, int events)	374	fd_event (EV_P_ int fd, int revents)
340	{	375	{
341	ANFD *anfd = anfds + fd;	376	ANFD *anfd = anfds + fd;
342	struct ev_io *w;	377	struct ev_io *w;
343		378
344	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	379	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
345	{	380	{
346	int ev = w->events & events;	381	int ev = w->events & revents;
347		382
348	if (ev)	383	if (ev)
349	event (EV_A_ (W)w, ev);	384	ev_feed_event (EV_A_ (W)w, ev);
350	}	385	}
		386	}
		387
		388	void
		389	ev_feed_fd_event (EV_P_ int fd, int revents)
		390	{
		391	fd_event (EV_A_ fd, revents);
351	}	392	}
352		393
353	/*****************************************************************************/	394	/*****************************************************************************/
354		395
355	static void	396	static void
…		…
366	int events = 0;	407	int events = 0;
367		408
368	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	409	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
369	events \|= w->events;	410	events \|= w->events;
370		411
		412	#if EV_SELECT_IS_WINSOCKET
		413	if (events)
		414	{
		415	unsigned long argp;
		416	anfd->handle = _get_osfhandle (fd);
		417	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		418	}
		419	#endif
		420
371	anfd->reify = 0;	421	anfd->reify = 0;
372		422
373	method_modify (EV_A_ fd, anfd->events, events);	423	method_modify (EV_A_ fd, anfd->events, events);
374	anfd->events = events;	424	anfd->events = events;
375	}	425	}
…		…
378	}	428	}
379		429
380	static void	430	static void
381	fd_change (EV_P_ int fd)	431	fd_change (EV_P_ int fd)
382	{	432	{
383	if (anfds [fd].reify \|\| fdchangecnt < 0)	433	if (anfds [fd].reify)
384	return;	434	return;
385		435
386	anfds [fd].reify = 1;	436	anfds [fd].reify = 1;
387		437
388	++fdchangecnt;	438	++fdchangecnt;
389	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	439	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
390	fdchanges [fdchangecnt - 1] = fd;	440	fdchanges [fdchangecnt - 1] = fd;
391	}	441	}
392		442
393	static void	443	static void
394	fd_kill (EV_P_ int fd)	444	fd_kill (EV_P_ int fd)
…		…
396	struct ev_io *w;	446	struct ev_io *w;
397		447
398	while ((w = (struct ev_io *)anfds [fd].head))	448	while ((w = (struct ev_io *)anfds [fd].head))
399	{	449	{
400	ev_io_stop (EV_A_ w);	450	ev_io_stop (EV_A_ w);
401	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	451	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
402	}	452	}
		453	}
		454
		455	static int
		456	fd_valid (int fd)
		457	{
		458	#ifdef _WIN32
		459	return _get_osfhandle (fd) != -1;
		460	#else
		461	return fcntl (fd, F_GETFD) != -1;
		462	#endif
403	}	463	}
404		464
405	/* called on EBADF to verify fds */	465	/* called on EBADF to verify fds */
406	static void	466	static void
407	fd_ebadf (EV_P)	467	fd_ebadf (EV_P)
408	{	468	{
409	int fd;	469	int fd;
410		470
411	for (fd = 0; fd < anfdmax; ++fd)	471	for (fd = 0; fd < anfdmax; ++fd)
412	if (anfds [fd].events)	472	if (anfds [fd].events)
413	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	473	if (!fd_valid (fd) == -1 && errno == EBADF)
414	fd_kill (EV_A_ fd);	474	fd_kill (EV_A_ fd);
415	}	475	}
416		476
417	/* called on ENOMEM in select/poll to kill some fds and retry */	477	/* called on ENOMEM in select/poll to kill some fds and retry */
418	static void	478	static void
…		…
426	fd_kill (EV_A_ fd);	486	fd_kill (EV_A_ fd);
427	return;	487	return;
428	}	488	}
429	}	489	}
430		490
431	/* susually called after fork if method needs to re-arm all fds from scratch */	491	/* usually called after fork if method needs to re-arm all fds from scratch */
432	static void	492	static void
433	fd_rearm_all (EV_P)	493	fd_rearm_all (EV_P)
434	{	494	{
435	int fd;	495	int fd;
436		496
…		…
484		544
485	heap [k] = w;	545	heap [k] = w;
486	((W)heap [k])->active = k + 1;	546	((W)heap [k])->active = k + 1;
487	}	547	}
488		548
		549	inline void
		550	adjustheap (WT *heap, int N, int k)
		551	{
		552	upheap (heap, k);
		553	downheap (heap, N, k);
		554	}
		555
489	/*****************************************************************************/	556	/*****************************************************************************/
490		557
491	typedef struct	558	typedef struct
492	{	559	{
493	WL head;	560	WL head;
…		…
514	}	581	}
515		582
516	static void	583	static void
517	sighandler (int signum)	584	sighandler (int signum)
518	{	585	{
519	#if WIN32	586	#if _WIN32
520	signal (signum, sighandler);	587	signal (signum, sighandler);
521	#endif	588	#endif
522		589
523	signals [signum - 1].gotsig = 1;	590	signals [signum - 1].gotsig = 1;
524		591
…		…
529	write (sigpipe [1], &signum, 1);	596	write (sigpipe [1], &signum, 1);
530	errno = old_errno;	597	errno = old_errno;
531	}	598	}
532	}	599	}
533		600
		601	void
		602	ev_feed_signal_event (EV_P_ int signum)
		603	{
		604	WL w;
		605
		606	#if EV_MULTIPLICITY
		607	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		608	#endif
		609
		610	--signum;
		611
		612	if (signum < 0 \|\| signum >= signalmax)
		613	return;
		614
		615	signals [signum].gotsig = 0;
		616
		617	for (w = signals [signum].head; w; w = w->next)
		618	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		619	}
		620
534	static void	621	static void
535	sigcb (EV_P_ struct ev_io *iow, int revents)	622	sigcb (EV_P_ struct ev_io *iow, int revents)
536	{	623	{
537	WL w;
538	int signum;	624	int signum;
539		625
540	read (sigpipe [0], &revents, 1);	626	read (sigpipe [0], &revents, 1);
541	gotsig = 0;	627	gotsig = 0;
542		628
543	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
544	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
545	{	631	ev_feed_signal_event (EV_A_ signum + 1);
546	signals [signum].gotsig = 0;	632	}
547		633
548	for (w = signals [signum].head; w; w = w->next)	634	inline void
549	event (EV_A_ (W)w, EV_SIGNAL);	635	fd_intern (int fd)
550	}	636	{
		637	#ifdef _WIN32
		638	int arg = 1;
		639	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		640	#else
		641	fcntl (fd, F_SETFD, FD_CLOEXEC);
		642	fcntl (fd, F_SETFL, O_NONBLOCK);
		643	#endif
551	}	644	}
552		645
553	static void	646	static void
554	siginit (EV_P)	647	siginit (EV_P)
555	{	648	{
556	#ifndef WIN32	649	fd_intern (sigpipe [0]);
557	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	650	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		651
565	ev_io_set (&sigev, sigpipe [0], EV_READ);	652	ev_io_set (&sigev, sigpipe [0], EV_READ);
566	ev_io_start (EV_A_ &sigev);	653	ev_io_start (EV_A_ &sigev);
567	ev_unref (EV_A); /* child watcher should not keep loop alive */	654	ev_unref (EV_A); /* child watcher should not keep loop alive */
568	}	655	}
569		656
570	/*****************************************************************************/	657	/*****************************************************************************/
571		658
572	#ifndef WIN32
573
574	static struct ev_child *childs [PID_HASHSIZE];	659	static struct ev_child *childs [PID_HASHSIZE];
		660
		661	#ifndef _WIN32
		662
575	static struct ev_signal childev;	663	static struct ev_signal childev;
576		664
577	#ifndef WCONTINUED	665	#ifndef WCONTINUED
578	# define WCONTINUED 0	666	# define WCONTINUED 0
579	#endif	667	#endif
…		…
587	if (w->pid == pid \|\| !w->pid)	675	if (w->pid == pid \|\| !w->pid)
588	{	676	{
589	ev_priority (w) = ev_priority (sw); /* need to do it now */	677	ev_priority (w) = ev_priority (sw); /* need to do it now */
590	w->rpid = pid;	678	w->rpid = pid;
591	w->rstatus = status;	679	w->rstatus = status;
592	event (EV_A_ (W)w, EV_CHILD);	680	ev_feed_event (EV_A_ (W)w, EV_CHILD);
593	}	681	}
594	}	682	}
595		683
596	static void	684	static void
597	childcb (EV_P_ struct ev_signal *sw, int revents)	685	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
599	int pid, status;	687	int pid, status;
600		688
601	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	689	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
602	{	690	{
603	/* make sure we are called again until all childs have been reaped */	691	/* make sure we are called again until all childs have been reaped */
604	event (EV_A_ (W)sw, EV_SIGNAL);	692	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
605		693
606	child_reap (EV_A_ sw, pid, pid, status);	694	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 */	695	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
608	}	696	}
609	}	697	}
…		…
639		727
640	/* return true if we are running with elevated privileges and should ignore env variables */	728	/* return true if we are running with elevated privileges and should ignore env variables */
641	static int	729	static int
642	enable_secure (void)	730	enable_secure (void)
643	{	731	{
644	#ifdef WIN32	732	#ifdef _WIN32
645	return 0;	733	return 0;
646	#else	734	#else
647	return getuid () != geteuid ()	735	return getuid () != geteuid ()
648	\|\| getgid () != getegid ();	736	\|\| getgid () != getegid ();
649	#endif	737	#endif
…		…
666	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	754	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
667	have_monotonic = 1;	755	have_monotonic = 1;
668	}	756	}
669	#endif	757	#endif
670		758
671	rt_now = ev_time ();	759	ev_rt_now = ev_time ();
672	mn_now = get_clock ();	760	mn_now = get_clock ();
673	now_floor = mn_now;	761	now_floor = mn_now;
674	rtmn_diff = rt_now - mn_now;	762	rtmn_diff = ev_rt_now - mn_now;
675		763
676	if (methods == EVMETHOD_AUTO)	764	if (methods == EVMETHOD_AUTO)
677	if (!enable_secure () && getenv ("LIBEV_METHODS"))	765	if (!enable_secure () && getenv ("LIBEV_METHODS"))
678	methods = atoi (getenv ("LIBEV_METHODS"));	766	methods = atoi (getenv ("LIBEV_METHODS"));
679	else	767	else
680	methods = EVMETHOD_ANY;	768	methods = EVMETHOD_ANY;
681		769
682	method = 0;	770	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	771	#if EV_USE_KQUEUE
687	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	772	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
688	#endif	773	#endif
689	#if EV_USE_EPOLL	774	#if EV_USE_EPOLL
690	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	775	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
693	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	778	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
694	#endif	779	#endif
695	#if EV_USE_SELECT	780	#if EV_USE_SELECT
696	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	781	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
697	#endif	782	#endif
		783
		784	ev_init (&sigev, sigcb);
		785	ev_set_priority (&sigev, EV_MAXPRI);
698	}	786	}
699	}	787	}
700		788
701	void	789	void
702	loop_destroy (EV_P)	790	loop_destroy (EV_P)
703	{	791	{
704	int i;	792	int i;
705		793
706	#if EV_USE_WIN32
707	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
708	#endif
709	#if EV_USE_KQUEUE	794	#if EV_USE_KQUEUE
710	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
711	#endif	796	#endif
712	#if EV_USE_EPOLL	797	#if EV_USE_EPOLL
713	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
720	#endif	805	#endif
721		806
722	for (i = NUMPRI; i--; )	807	for (i = NUMPRI; i--; )
723	array_free (pending, [i]);	808	array_free (pending, [i]);
724		809
		810	/* have to use the microsoft-never-gets-it-right macro */
725	array_free (fdchange, );	811	array_free (fdchange, EMPTY);
726	array_free (timer, );	812	array_free (timer, EMPTY);
		813	#if EV_PERIODICS
727	array_free (periodic, );	814	array_free (periodic, EMPTY);
		815	#endif
728	array_free (idle, );	816	array_free (idle, EMPTY);
729	array_free (prepare, );	817	array_free (prepare, EMPTY);
730	array_free (check, );	818	array_free (check, EMPTY);
731		819
732	method = 0;	820	method = 0;
733	/TODO/
734	}	821	}
735		822
736	void	823	static void
737	loop_fork (EV_P)	824	loop_fork (EV_P)
738	{	825	{
739	/TODO/
740	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
741	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
742	#endif	828	#endif
743	#if EV_USE_KQUEUE	829	#if EV_USE_KQUEUE
744	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
745	#endif	831	#endif
		832
		833	if (ev_is_active (&sigev))
		834	{
		835	/* default loop */
		836
		837	ev_ref (EV_A);
		838	ev_io_stop (EV_A_ &sigev);
		839	close (sigpipe [0]);
		840	close (sigpipe [1]);
		841
		842	while (pipe (sigpipe))
		843	syserr ("(libev) error creating pipe");
		844
		845	siginit (EV_A);
		846	}
		847
		848	postfork = 0;
746	}	849	}
747		850
748	#if EV_MULTIPLICITY	851	#if EV_MULTIPLICITY
749	struct ev_loop *	852	struct ev_loop *
750	ev_loop_new (int methods)	853	ev_loop_new (int methods)
…		…
769	}	872	}
770		873
771	void	874	void
772	ev_loop_fork (EV_P)	875	ev_loop_fork (EV_P)
773	{	876	{
774	loop_fork (EV_A);	877	postfork = 1;
775	}	878	}
776		879
777	#endif	880	#endif
778		881
779	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
780	struct ev_loop default_loop_struct;
781	static struct ev_loop *default_loop;
782
783	struct ev_loop *	883	struct ev_loop *
784	#else	884	#else
785	static int default_loop;
786
787	int	885	int
788	#endif	886	#endif
789	ev_default_loop (int methods)	887	ev_default_loop (int methods)
790	{	888	{
791	if (sigpipe [0] == sigpipe [1])	889	if (sigpipe [0] == sigpipe [1])
…		…
802		900
803	loop_init (EV_A_ methods);	901	loop_init (EV_A_ methods);
804		902
805	if (ev_method (EV_A))	903	if (ev_method (EV_A))
806	{	904	{
807	ev_watcher_init (&sigev, sigcb);
808	ev_set_priority (&sigev, EV_MAXPRI);
809	siginit (EV_A);	905	siginit (EV_A);
810		906
811	#ifndef WIN32	907	#ifndef _WIN32
812	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
813	ev_set_priority (&childev, EV_MAXPRI);	909	ev_set_priority (&childev, EV_MAXPRI);
814	ev_signal_start (EV_A_ &childev);	910	ev_signal_start (EV_A_ &childev);
815	ev_unref (EV_A); /* child watcher should not keep loop alive */	911	ev_unref (EV_A); /* child watcher should not keep loop alive */
816	#endif	912	#endif
…		…
827	{	923	{
828	#if EV_MULTIPLICITY	924	#if EV_MULTIPLICITY
829	struct ev_loop *loop = default_loop;	925	struct ev_loop *loop = default_loop;
830	#endif	926	#endif
831		927
		928	#ifndef _WIN32
832	ev_ref (EV_A); /* child watcher */	929	ev_ref (EV_A); /* child watcher */
833	ev_signal_stop (EV_A_ &childev);	930	ev_signal_stop (EV_A_ &childev);
		931	#endif
834		932
835	ev_ref (EV_A); /* signal watcher */	933	ev_ref (EV_A); /* signal watcher */
836	ev_io_stop (EV_A_ &sigev);	934	ev_io_stop (EV_A_ &sigev);
837		935
838	close (sigpipe [0]); sigpipe [0] = 0;	936	close (sigpipe [0]); sigpipe [0] = 0;
…		…
846	{	944	{
847	#if EV_MULTIPLICITY	945	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	946	struct ev_loop *loop = default_loop;
849	#endif	947	#endif
850		948
851	loop_fork (EV_A);	949	if (method)
852		950	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	}	951	}
861		952
862	/*****************************************************************************/	953	/*****************************************************************************/
		954
		955	static int
		956	any_pending (EV_P)
		957	{
		958	int pri;
		959
		960	for (pri = NUMPRI; pri--; )
		961	if (pendingcnt [pri])
		962	return 1;
		963
		964	return 0;
		965	}
863		966
864	static void	967	static void
865	call_pending (EV_P)	968	call_pending (EV_P)
866	{	969	{
867	int pri;	970	int pri;
…		…
872	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
873		976
874	if (p->w)	977	if (p->w)
875	{	978	{
876	p->w->pending = 0;	979	p->w->pending = 0;
877	p->w->cb (EV_A_ p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
878	}	981	}
879	}	982	}
880	}	983	}
881		984
882	static void	985	static void
…		…
890		993
891	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
892	if (w->repeat)	995	if (w->repeat)
893	{	996	{
894	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	997	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		998
895	((WT)w)->at = mn_now + w->repeat;	999	((WT)w)->at += w->repeat;
		1000	if (((WT)w)->at < mn_now)
		1001	((WT)w)->at = mn_now;
		1002
896	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
897	}	1004	}
898	else	1005	else
899	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
900		1007
901	event (EV_A_ (W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
902	}	1009	}
903	}	1010	}
904		1011
		1012	#if EV_PERIODICS
905	static void	1013	static void
906	periodics_reify (EV_P)	1014	periodics_reify (EV_P)
907	{	1015	{
908	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
909	{	1017	{
910	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
911		1019
912	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
913		1021
914	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
915	if (w->interval)	1023	if (w->reschedule_cb)
916	{	1024	{
		1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1026
		1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1028	downheap ((WT *)periodics, periodiccnt, 0);
		1029	}
		1030	else if (w->interval)
		1031	{
917	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1032	((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));	1033	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);	1034	downheap ((WT *)periodics, periodiccnt, 0);
920	}	1035	}
921	else	1036	else
922	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
923		1038
924	event (EV_A_ (W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
925	}	1040	}
926	}	1041	}
927		1042
928	static void	1043	static void
929	periodics_reschedule (EV_P)	1044	periodics_reschedule (EV_P)
…		…
933	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
934	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
935	{	1050	{
936	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
937		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
938	if (w->interval)	1055	else if (w->interval)
939	{
940	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1056	((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	}	1057	}
		1058
		1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
951	}	1062	}
		1063	#endif
952		1064
953	inline int	1065	inline int
954	time_update_monotonic (EV_P)	1066	time_update_monotonic (EV_P)
955	{	1067	{
956	mn_now = get_clock ();	1068	mn_now = get_clock ();
957		1069
958	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
959	{	1071	{
960	rt_now = rtmn_diff + mn_now;	1072	ev_rt_now = rtmn_diff + mn_now;
961	return 0;	1073	return 0;
962	}	1074	}
963	else	1075	else
964	{	1076	{
965	now_floor = mn_now;	1077	now_floor = mn_now;
966	rt_now = ev_time ();	1078	ev_rt_now = ev_time ();
967	return 1;	1079	return 1;
968	}	1080	}
969	}	1081	}
970		1082
971	static void	1083	static void
…		…
980	{	1092	{
981	ev_tstamp odiff = rtmn_diff;	1093	ev_tstamp odiff = rtmn_diff;
982		1094
983	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */
984	{	1096	{
985	rtmn_diff = rt_now - mn_now;	1097	rtmn_diff = ev_rt_now - mn_now;
986		1098
987	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
988	return; /* all is well */	1100	return; /* all is well */
989		1101
990	rt_now = ev_time ();	1102	ev_rt_now = ev_time ();
991	mn_now = get_clock ();	1103	mn_now = get_clock ();
992	now_floor = mn_now;	1104	now_floor = mn_now;
993	}	1105	}
994		1106
		1107	# if EV_PERIODICS
995	periodics_reschedule (EV_A);	1108	periodics_reschedule (EV_A);
		1109	# endif
996	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
997	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
998	}	1112	}
999	}	1113	}
1000	else	1114	else
1001	#endif	1115	#endif
1002	{	1116	{
1003	rt_now = ev_time ();	1117	ev_rt_now = ev_time ();
1004		1118
1005	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1006	{	1120	{
		1121	#if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1122	periodics_reschedule (EV_A);
		1123	#endif
1008		1124
1009	/* adjust timers. this is easy, as the offset is the same for all */	1125	/* adjust timers. this is easy, as the offset is the same for all */
1010	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
1011	((WT)timers [i])->at += rt_now - mn_now;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
1012	}	1128	}
1013		1129
1014	mn_now = rt_now;	1130	mn_now = ev_rt_now;
1015	}	1131	}
1016	}	1132	}
1017		1133
1018	void	1134	void
1019	ev_ref (EV_P)	1135	ev_ref (EV_P)
…		…
1042	{	1158	{
1043	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1044	call_pending (EV_A);	1160	call_pending (EV_A);
1045	}	1161	}
1046		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
1047	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
1048	fd_reify (EV_A);	1168	fd_reify (EV_A);
1049		1169
1050	/* calculate blocking time */	1170	/* calculate blocking time */
1051		1171
1052	/* we only need this for !monotonic clockor timers, but as we basically	1172	/* we only need this for !monotonic clock or timers, but as we basically
1053	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
1054	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
1055	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
1056	time_update_monotonic (EV_A);	1176	time_update_monotonic (EV_A);
1057	else	1177	else
1058	#endif	1178	#endif
1059	{	1179	{
1060	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1061	mn_now = rt_now;	1181	mn_now = ev_rt_now;
1062	}	1182	}
1063		1183
1064	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1065	block = 0.;	1185	block = 0.;
1066	else	1186	else
…		…
1071	{	1191	{
1072	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1073	if (block > to) block = to;	1193	if (block > to) block = to;
1074	}	1194	}
1075		1195
		1196	#if EV_PERIODICS
1076	if (periodiccnt)	1197	if (periodiccnt)
1077	{	1198	{
1078	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1079	if (block > to) block = to;	1200	if (block > to) block = to;
1080	}	1201	}
		1202	#endif
1081		1203
1082	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
1083	}	1205	}
1084		1206
1085	method_poll (EV_A_ block);	1207	method_poll (EV_A_ block);
1086		1208
1087	/* update rt_now, do magic */	1209	/* update ev_rt_now, do magic */
1088	time_update (EV_A);	1210	time_update (EV_A);
1089		1211
1090	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
1091	timers_reify (EV_A); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
1092	periodics_reify (EV_A); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
1093		1217
1094	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
1095	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
1096	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1097		1221
1098	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
1099	if (checkcnt)	1223	if (checkcnt)
1100	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1175	return;	1299	return;
1176		1300
1177	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
1178		1302
1179	ev_start (EV_A_ (W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
1180	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1181	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1182		1306
1183	fd_change (EV_A_ fd);	1307	fd_change (EV_A_ fd);
1184	}	1308	}
1185		1309
…		…
1188	{	1312	{
1189	ev_clear_pending (EV_A_ (W)w);	1313	ev_clear_pending (EV_A_ (W)w);
1190	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
1191	return;	1315	return;
1192		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
1193	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1194	ev_stop (EV_A_ (W)w);	1320	ev_stop (EV_A_ (W)w);
1195		1321
1196	fd_change (EV_A_ w->fd);	1322	fd_change (EV_A_ w->fd);
1197	}	1323	}
…		…
1205	((WT)w)->at += mn_now;	1331	((WT)w)->at += mn_now;
1206		1332
1207	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1208		1334
1209	ev_start (EV_A_ (W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
1210	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1211	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
1212	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
1213		1339
1214	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1215	}	1341	}
…		…
1224	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1225		1351
1226	if (((W)w)->active < timercnt--)	1352	if (((W)w)->active < timercnt--)
1227	{	1353	{
1228	timers [((W)w)->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
1229	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1355	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1230	}	1356	}
1231		1357
1232	((WT)w)->at = w->repeat;	1358	((WT)w)->at -= mn_now;
1233		1359
1234	ev_stop (EV_A_ (W)w);	1360	ev_stop (EV_A_ (W)w);
1235	}	1361	}
1236		1362
1237	void	1363	void
…		…
1240	if (ev_is_active (w))	1366	if (ev_is_active (w))
1241	{	1367	{
1242	if (w->repeat)	1368	if (w->repeat)
1243	{	1369	{
1244	((WT)w)->at = mn_now + w->repeat;	1370	((WT)w)->at = mn_now + w->repeat;
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1372	}
1247	else	1373	else
1248	ev_timer_stop (EV_A_ w);	1374	ev_timer_stop (EV_A_ w);
1249	}	1375	}
1250	else if (w->repeat)	1376	else if (w->repeat)
1251	ev_timer_start (EV_A_ w);	1377	ev_timer_start (EV_A_ w);
1252	}	1378	}
1253		1379
		1380	#if EV_PERIODICS
1254	void	1381	void
1255	ev_periodic_start (EV_P_ struct ev_periodic *w)	1382	ev_periodic_start (EV_P_ struct ev_periodic *w)
1256	{	1383	{
1257	if (ev_is_active (w))	1384	if (ev_is_active (w))
1258	return;	1385	return;
1259		1386
		1387	if (w->reschedule_cb)
		1388	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1389	else if (w->interval)
		1390	{
1260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1391	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 */	1392	/* 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;	1393	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1394	}
1265		1395
1266	ev_start (EV_A_ (W)w, ++periodiccnt);	1396	ev_start (EV_A_ (W)w, ++periodiccnt);
1267	array_needsize (periodics, periodicmax, periodiccnt, );	1397	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1268	periodics [periodiccnt - 1] = w;	1398	periodics [periodiccnt - 1] = w;
1269	upheap ((WT *)periodics, periodiccnt - 1);	1399	upheap ((WT *)periodics, periodiccnt - 1);
1270		1400
1271	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1401	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1272	}	1402	}
…		…
1281	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1411	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1282		1412
1283	if (((W)w)->active < periodiccnt--)	1413	if (((W)w)->active < periodiccnt--)
1284	{	1414	{
1285	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1415	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1286	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1416	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1287	}	1417	}
1288		1418
1289	ev_stop (EV_A_ (W)w);	1419	ev_stop (EV_A_ (W)w);
1290	}	1420	}
1291		1421
1292	void	1422	void
		1423	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1424	{
		1425	/* TODO: use adjustheap and recalculation */
		1426	ev_periodic_stop (EV_A_ w);
		1427	ev_periodic_start (EV_A_ w);
		1428	}
		1429	#endif
		1430
		1431	void
1293	ev_idle_start (EV_P_ struct ev_idle *w)	1432	ev_idle_start (EV_P_ struct ev_idle *w)
1294	{	1433	{
1295	if (ev_is_active (w))	1434	if (ev_is_active (w))
1296	return;	1435	return;
1297		1436
1298	ev_start (EV_A_ (W)w, ++idlecnt);	1437	ev_start (EV_A_ (W)w, ++idlecnt);
1299	array_needsize (idles, idlemax, idlecnt, );	1438	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1300	idles [idlecnt - 1] = w;	1439	idles [idlecnt - 1] = w;
1301	}	1440	}
1302		1441
1303	void	1442	void
1304	ev_idle_stop (EV_P_ struct ev_idle *w)	1443	ev_idle_stop (EV_P_ struct ev_idle *w)
1305	{	1444	{
1306	ev_clear_pending (EV_A_ (W)w);	1445	ev_clear_pending (EV_A_ (W)w);
1307	if (ev_is_active (w))	1446	if (!ev_is_active (w))
1308	return;	1447	return;
1309		1448
1310	idles [((W)w)->active - 1] = idles [--idlecnt];	1449	idles [((W)w)->active - 1] = idles [--idlecnt];
1311	ev_stop (EV_A_ (W)w);	1450	ev_stop (EV_A_ (W)w);
1312	}	1451	}
…		…
1316	{	1455	{
1317	if (ev_is_active (w))	1456	if (ev_is_active (w))
1318	return;	1457	return;
1319		1458
1320	ev_start (EV_A_ (W)w, ++preparecnt);	1459	ev_start (EV_A_ (W)w, ++preparecnt);
1321	array_needsize (prepares, preparemax, preparecnt, );	1460	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1322	prepares [preparecnt - 1] = w;	1461	prepares [preparecnt - 1] = w;
1323	}	1462	}
1324		1463
1325	void	1464	void
1326	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1465	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1327	{	1466	{
1328	ev_clear_pending (EV_A_ (W)w);	1467	ev_clear_pending (EV_A_ (W)w);
1329	if (ev_is_active (w))	1468	if (!ev_is_active (w))
1330	return;	1469	return;
1331		1470
1332	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1471	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1333	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1334	}	1473	}
…		…
1338	{	1477	{
1339	if (ev_is_active (w))	1478	if (ev_is_active (w))
1340	return;	1479	return;
1341		1480
1342	ev_start (EV_A_ (W)w, ++checkcnt);	1481	ev_start (EV_A_ (W)w, ++checkcnt);
1343	array_needsize (checks, checkmax, checkcnt, );	1482	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1344	checks [checkcnt - 1] = w;	1483	checks [checkcnt - 1] = w;
1345	}	1484	}
1346		1485
1347	void	1486	void
1348	ev_check_stop (EV_P_ struct ev_check *w)	1487	ev_check_stop (EV_P_ struct ev_check *w)
1349	{	1488	{
1350	ev_clear_pending (EV_A_ (W)w);	1489	ev_clear_pending (EV_A_ (W)w);
1351	if (ev_is_active (w))	1490	if (!ev_is_active (w))
1352	return;	1491	return;
1353		1492
1354	checks [((W)w)->active - 1] = checks [--checkcnt];	1493	checks [((W)w)->active - 1] = checks [--checkcnt];
1355	ev_stop (EV_A_ (W)w);	1494	ev_stop (EV_A_ (W)w);
1356	}	1495	}
…		…
1369	return;	1508	return;
1370		1509
1371	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1510	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1372		1511
1373	ev_start (EV_A_ (W)w, 1);	1512	ev_start (EV_A_ (W)w, 1);
1374	array_needsize (signals, signalmax, w->signum, signals_init);	1513	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1375	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1514	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1376		1515
1377	if (!((WL)w)->next)	1516	if (!((WL)w)->next)
1378	{	1517	{
1379	#if WIN32	1518	#if _WIN32
1380	signal (w->signum, sighandler);	1519	signal (w->signum, sighandler);
1381	#else	1520	#else
1382	struct sigaction sa;	1521	struct sigaction sa;
1383	sa.sa_handler = sighandler;	1522	sa.sa_handler = sighandler;
1384	sigfillset (&sa.sa_mask);	1523	sigfillset (&sa.sa_mask);
…		…
1417		1556
1418	void	1557	void
1419	ev_child_stop (EV_P_ struct ev_child *w)	1558	ev_child_stop (EV_P_ struct ev_child *w)
1420	{	1559	{
1421	ev_clear_pending (EV_A_ (W)w);	1560	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1561	if (!ev_is_active (w))
1423	return;	1562	return;
1424		1563
1425	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1564	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1426	ev_stop (EV_A_ (W)w);	1565	ev_stop (EV_A_ (W)w);
1427	}	1566	}
…		…
1462	}	1601	}
1463		1602
1464	void	1603	void
1465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1604	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1466	{	1605	{
1467	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1606	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1468		1607
1469	if (!once)	1608	if (!once)
1470	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1609	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1471	else	1610	else
1472	{	1611	{
1473	once->cb = cb;	1612	once->cb = cb;
1474	once->arg = arg;	1613	once->arg = arg;
1475		1614
1476	ev_watcher_init (&once->io, once_cb_io);	1615	ev_init (&once->io, once_cb_io);
1477	if (fd >= 0)	1616	if (fd >= 0)
1478	{	1617	{
1479	ev_io_set (&once->io, fd, events);	1618	ev_io_set (&once->io, fd, events);
1480	ev_io_start (EV_A_ &once->io);	1619	ev_io_start (EV_A_ &once->io);
1481	}	1620	}
1482		1621
1483	ev_watcher_init (&once->to, once_cb_to);	1622	ev_init (&once->to, once_cb_to);
1484	if (timeout >= 0.)	1623	if (timeout >= 0.)
1485	{	1624	{
1486	ev_timer_set (&once->to, timeout, 0.);	1625	ev_timer_set (&once->to, timeout, 0.);
1487	ev_timer_start (EV_A_ &once->to);	1626	ev_timer_start (EV_A_ &once->to);
1488	}	1627	}
1489	}	1628	}
1490	}	1629	}
1491		1630
		1631	#ifdef __cplusplus
		1632	}
		1633	#endif
		1634

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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 1.103 by root, Mon Nov 12 00:31:08 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 1.103 by root, Mon Nov 12 00:31:08 2007 UTC