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

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 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	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
49	#endif	84	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	85	/**/
54		86
55	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
57	#endif	89	#endif
58		90
59	#ifndef EV_USE_SELECT	91	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT 1
61	#endif	93	#endif
62		94
63	#ifndef EV_USEV_POLL	95	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	97	#endif
66		98
67	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
69	#endif	101	#endif
70		102
71	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
73	#endif	115	#endif
74		116
75	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
77	#endif	119	#endif
…		…
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		139
98	#ifndef EV_EMBED	140	#ifdef EV_H
		141	# include EV_H
		142	#else
99	# include "ev.h"	143	# include "ev.h"
100	#endif	144	#endif
101		145
102	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
…		…
117	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
119		163
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		165
		166	#include "ev_win32.c"
		167
122	/*****************************************************************************/	168	/*****************************************************************************/
123		169
		170	static void (syserr_cb)(const char msg);
		171
		172	void ev_set_syserr_cb (void (cb)(const char msg))
		173	{
		174	syserr_cb = cb;
		175	}
		176
		177	static void
		178	syserr (const char *msg)
		179	{
		180	if (!msg)
		181	msg = "(libev) system error";
		182
		183	if (syserr_cb)
		184	syserr_cb (msg);
		185	else
		186	{
		187	perror (msg);
		188	abort ();
		189	}
		190	}
		191
		192	static void (alloc)(void *ptr, long size);
		193
		194	void ev_set_allocator (void (cb)(void *ptr, long size))
		195	{
		196	alloc = cb;
		197	}
		198
		199	static void *
		200	ev_realloc (void *ptr, long size)
		201	{
		202	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		203
		204	if (!ptr && size)
		205	{
		206	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		207	abort ();
		208	}
		209
		210	return ptr;
		211	}
		212
		213	#define ev_malloc(size) ev_realloc (0, (size))
		214	#define ev_free(ptr) ev_realloc ((ptr), 0)
		215
		216	/*****************************************************************************/
		217
124	typedef struct	218	typedef struct
125	{	219	{
126	struct ev_watcher_list *head;	220	WL head;
127	unsigned char events;	221	unsigned char events;
128	unsigned char reify;	222	unsigned char reify;
129	} ANFD;	223	} ANFD;
130		224
131	typedef struct	225	typedef struct
…		…
134	int events;	228	int events;
135	} ANPENDING;	229	} ANPENDING;
136		230
137	#if EV_MULTIPLICITY	231	#if EV_MULTIPLICITY
138		232
139	struct ev_loop	233	struct ev_loop
140	{	234	{
		235	ev_tstamp ev_rt_now;
141	# define VAR(name,decl) decl;	236	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	237	#include "ev_vars.h"
143	};
144	# undef VAR	238	#undef VAR
		239	};
145	# include "ev_wrap.h"	240	#include "ev_wrap.h"
		241
		242	struct ev_loop default_loop_struct;
		243	static struct ev_loop *default_loop;
146		244
147	#else	245	#else
148		246
		247	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	248	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	249	#include "ev_vars.h"
151	# undef VAR	250	#undef VAR
		251
		252	static int default_loop;
152		253
153	#endif	254	#endif
154		255
155	/*****************************************************************************/	256	/*****************************************************************************/
156		257
157	inline ev_tstamp	258	ev_tstamp
158	ev_time (void)	259	ev_time (void)
159	{	260	{
160	#if EV_USE_REALTIME	261	#if EV_USE_REALTIME
161	struct timespec ts;	262	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	263	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	282	#endif
182		283
183	return ev_time ();	284	return ev_time ();
184	}	285	}
185		286
		287	#if EV_MULTIPLICITY
186	ev_tstamp	288	ev_tstamp
187	ev_now (EV_P)	289	ev_now (EV_P)
188	{	290	{
189	return rt_now;	291	return ev_rt_now;
190	}	292	}
		293	#endif
191		294
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	295	#define array_roundsize(type,n) ((n) \| 4 & ~3)
193		296
194	#define array_needsize(base,cur,cnt,init) \	297	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	298	if (expect_false ((cnt) > cur)) \
196	{ \	299	{ \
197	int newcnt = cur; \	300	int newcnt = cur; \
198	do \	301	do \
199	{ \	302	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	303	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	304	} \
202	while ((cnt) > newcnt); \	305	while ((cnt) > newcnt); \
203	\	306	\
204	base = realloc (base, sizeof (base) (newcnt)); \	307	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	308	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	309	cur = newcnt; \
207	}	310	}
		311
		312	#define array_slim(type,stem) \
		313	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		314	{ \
		315	stem ## max = array_roundsize (stem ## cnt >> 1); \
		316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		318	}
		319
		320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		322	#define array_free_microshit(stem) \
		323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		324
		325	#define array_free(stem, idx) \
		326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		327
209	/*****************************************************************************/	328	/*****************************************************************************/
210		329
211	static void	330	static void
212	anfds_init (ANFD *base, int count)	331	anfds_init (ANFD *base, int count)
…		…
219		338
220	++base;	339	++base;
221	}	340	}
222	}	341	}
223		342
224	static void	343	void
225	event (EV_P_ W w, int events)	344	ev_feed_event (EV_P_ void *w, int revents)
226	{	345	{
		346	W w_ = (W)w;
		347
227	if (w->pending)	348	if (w_->pending)
228	{	349	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	351	return;
231	}	352	}
232		353
233	w->pending = ++pendingcnt [ABSPRI (w)];	354	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	358	}
238		359
239	static void	360	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	361	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	362	{
242	int i;	363	int i;
243		364
244	for (i = 0; i < eventcnt; ++i)	365	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	366	ev_feed_event (EV_A_ events [i], type);
246	}	367	}
247		368
248	static void	369	inline void
249	fd_event (EV_P_ int fd, int events)	370	fd_event (EV_P_ int fd, int revents)
250	{	371	{
251	ANFD *anfd = anfds + fd;	372	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	373	struct ev_io *w;
253		374
254	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	{	376	{
256	int ev = w->events & events;	377	int ev = w->events & revents;
257		378
258	if (ev)	379	if (ev)
259	event (EV_A_ (W)w, ev);	380	ev_feed_event (EV_A_ (W)w, ev);
260	}	381	}
		382	}
		383
		384	void
		385	ev_feed_fd_event (EV_P_ int fd, int revents)
		386	{
		387	fd_event (EV_A_ fd, revents);
261	}	388	}
262		389
263	/*****************************************************************************/	390	/*****************************************************************************/
264		391
265	static void	392	static void
…		…
278	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
279	events \|= w->events;	406	events \|= w->events;
280		407
281	anfd->reify = 0;	408	anfd->reify = 0;
282		409
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	410	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	411	anfd->events = events;
287	}
288	}	412	}
289		413
290	fdchangecnt = 0;	414	fdchangecnt = 0;
291	}	415	}
292		416
293	static void	417	static void
294	fd_change (EV_P_ int fd)	418	fd_change (EV_P_ int fd)
295	{	419	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	420	if (anfds [fd].reify)
297	return;	421	return;
298		422
299	anfds [fd].reify = 1;	423	anfds [fd].reify = 1;
300		424
301	++fdchangecnt;	425	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
303	fdchanges [fdchangecnt - 1] = fd;	427	fdchanges [fdchangecnt - 1] = fd;
304	}	428	}
305		429
306	static void	430	static void
307	fd_kill (EV_P_ int fd)	431	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	433	struct ev_io *w;
310		434
311	while ((w = (struct ev_io *)anfds [fd].head))	435	while ((w = (struct ev_io *)anfds [fd].head))
312	{	436	{
313	ev_io_stop (EV_A_ w);	437	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
315	}	439	}
		440	}
		441
		442	static int
		443	fd_valid (int fd)
		444	{
		445	#ifdef WIN32
		446	return !!win32_get_osfhandle (fd);
		447	#else
		448	return fcntl (fd, F_GETFD) != -1;
		449	#endif
316	}	450	}
317		451
318	/* called on EBADF to verify fds */	452	/* called on EBADF to verify fds */
319	static void	453	static void
320	fd_ebadf (EV_P)	454	fd_ebadf (EV_P)
321	{	455	{
322	int fd;	456	int fd;
323		457
324	for (fd = 0; fd < anfdmax; ++fd)	458	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	459	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	460	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	461	fd_kill (EV_A_ fd);
328	}	462	}
329		463
330	/* called on ENOMEM in select/poll to kill some fds and retry */	464	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	465	static void
332	fd_enomem (EV_P)	466	fd_enomem (EV_P)
333	{	467	{
334	int fd = anfdmax;	468	int fd;
335		469
336	while (fd--)	470	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	471	if (anfds [fd].events)
338	{	472	{
339	close (fd);
340	fd_kill (EV_A_ fd);	473	fd_kill (EV_A_ fd);
341	return;	474	return;
342	}	475	}
343	}	476	}
344		477
345	/* susually called after fork if method needs to re-arm all fds from scratch */	478	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	479	static void
347	fd_rearm_all (EV_P)	480	fd_rearm_all (EV_P)
348	{	481	{
349	int fd;	482	int fd;
350		483
351	/* this should be highly optimised to not do anything but set a flag */	484	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	485	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	486	if (anfds [fd].events)
354	{	487	{
355	anfds [fd].events = 0;	488	anfds [fd].events = 0;
356	fd_change (fd);	489	fd_change (EV_A_ fd);
357	}	490	}
358	}	491	}
359		492
360	/*****************************************************************************/	493	/*****************************************************************************/
361		494
…		…
365	WT w = heap [k];	498	WT w = heap [k];
366		499
367	while (k && heap [k >> 1]->at > w->at)	500	while (k && heap [k >> 1]->at > w->at)
368	{	501	{
369	heap [k] = heap [k >> 1];	502	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
371	k >>= 1;	504	k >>= 1;
372	}	505	}
373		506
374	heap [k] = w;	507	heap [k] = w;
375	heap [k]->active = k + 1;	508	((W)heap [k])->active = k + 1;
376		509
377	}	510	}
378		511
379	static void	512	static void
380	downheap (WT *heap, int N, int k)	513	downheap (WT *heap, int N, int k)
…		…
390		523
391	if (w->at <= heap [j]->at)	524	if (w->at <= heap [j]->at)
392	break;	525	break;
393		526
394	heap [k] = heap [j];	527	heap [k] = heap [j];
395	heap [k]->active = k + 1;	528	((W)heap [k])->active = k + 1;
396	k = j;	529	k = j;
397	}	530	}
398		531
399	heap [k] = w;	532	heap [k] = w;
400	heap [k]->active = k + 1;	533	((W)heap [k])->active = k + 1;
		534	}
		535
		536	inline void
		537	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		538	{
		539	ev_tstamp old_at = heap [k]->at;
		540	heap [k]->at = at;
		541
		542	if (old_at < at)
		543	downheap (heap, N, k);
		544	else
		545	upheap (heap, k);
401	}	546	}
402		547
403	/*****************************************************************************/	548	/*****************************************************************************/
404		549
405	typedef struct	550	typedef struct
406	{	551	{
407	struct ev_watcher_list *head;	552	WL head;
408	sig_atomic_t volatile gotsig;	553	sig_atomic_t volatile gotsig;
409	} ANSIG;	554	} ANSIG;
410		555
411	static ANSIG *signals;	556	static ANSIG *signals;
412	static int signalmax;	557	static int signalmax;
413		558
414	static int sigpipe [2];	559	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	560	static sig_atomic_t volatile gotsig;
		561	static struct ev_io sigev;
416		562
417	static void	563	static void
418	signals_init (ANSIG *base, int count)	564	signals_init (ANSIG *base, int count)
419	{	565	{
420	while (count--)	566	while (count--)
…		…
427	}	573	}
428		574
429	static void	575	static void
430	sighandler (int signum)	576	sighandler (int signum)
431	{	577	{
		578	#if WIN32
		579	signal (signum, sighandler);
		580	#endif
		581
432	signals [signum - 1].gotsig = 1;	582	signals [signum - 1].gotsig = 1;
433		583
434	if (!gotsig)	584	if (!gotsig)
435	{	585	{
436	int old_errno = errno;	586	int old_errno = errno;
437	gotsig = 1;	587	gotsig = 1;
		588	#ifdef WIN32
		589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		590	#else
438	write (sigpipe [1], &signum, 1);	591	write (sigpipe [1], &signum, 1);
		592	#endif
439	errno = old_errno;	593	errno = old_errno;
440	}	594	}
441	}	595	}
442		596
		597	void
		598	ev_feed_signal_event (EV_P_ int signum)
		599	{
		600	WL w;
		601
		602	#if EV_MULTIPLICITY
		603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		604	#endif
		605
		606	--signum;
		607
		608	if (signum < 0 \|\| signum >= signalmax)
		609	return;
		610
		611	signals [signum].gotsig = 0;
		612
		613	for (w = signals [signum].head; w; w = w->next)
		614	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		615	}
		616
443	static void	617	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	618	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	619	{
446	struct ev_watcher_list *w;
447	int signum;	620	int signum;
448		621
		622	#ifdef WIN32
		623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		624	#else
449	read (sigpipe [0], &revents, 1);	625	read (sigpipe [0], &revents, 1);
		626	#endif
450	gotsig = 0;	627	gotsig = 0;
451		628
452	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
454	{	631	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;
456
457	for (w = signals [signum].head; w; w = w->next)
458	event (EV_A_ (W)w, EV_SIGNAL);
459	}
460	}	632	}
461		633
462	static void	634	static void
463	siginit (EV_P)	635	siginit (EV_P)
464	{	636	{
…		…
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	648	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	649	}
478		650
479	/*****************************************************************************/	651	/*****************************************************************************/
480		652
		653	static struct ev_child *childs [PID_HASHSIZE];
		654
481	#ifndef WIN32	655	#ifndef WIN32
		656
		657	static struct ev_signal childev;
482		658
483	#ifndef WCONTINUED	659	#ifndef WCONTINUED
484	# define WCONTINUED 0	660	# define WCONTINUED 0
485	#endif	661	#endif
486		662
…		…
490	struct ev_child *w;	666	struct ev_child *w;
491		667
492	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
493	if (w->pid == pid \|\| !w->pid)	669	if (w->pid == pid \|\| !w->pid)
494	{	670	{
495	w->priority = sw->priority; /* need to do it now */	671	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	672	w->rpid = pid;
497	w->rstatus = status;	673	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	674	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	675	}
500	}	676	}
501		677
502	static void	678	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	679	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	681	int pid, status;
506		682
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	684	{
509	/* make sure we are called again until all childs have been reaped */	685	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		687
512	child_reap (EV_A_ sw, pid, pid, status);	688	child_reap (EV_A_ sw, pid, pid, status);
513	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	689	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	690	}
515	}	691	}
…		…
522	# include "ev_kqueue.c"	698	# include "ev_kqueue.c"
523	#endif	699	#endif
524	#if EV_USE_EPOLL	700	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	701	# include "ev_epoll.c"
526	#endif	702	#endif
527	#if EV_USEV_POLL	703	#if EV_USE_POLL
528	# include "ev_poll.c"	704	# include "ev_poll.c"
529	#endif	705	#endif
530	#if EV_USE_SELECT	706	#if EV_USE_SELECT
531	# include "ev_select.c"	707	# include "ev_select.c"
532	#endif	708	#endif
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	749	have_monotonic = 1;
574	}	750	}
575	#endif	751	#endif
576		752
577	rt_now = ev_time ();	753	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	754	mn_now = get_clock ();
579	now_floor = mn_now;	755	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	756	rtmn_diff = ev_rt_now - mn_now;
581		757
582	if (methods == EVMETHOD_AUTO)	758	if (methods == EVMETHOD_AUTO)
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))	759	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	760	methods = atoi (getenv ("LIBEV_METHODS"));
585	else	761	else
586	methods = EVMETHOD_ANY;	762	methods = EVMETHOD_ANY;
587		763
588	method = 0;	764	method = 0;
		765	#if EV_USE_WIN32
		766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		767	#endif
589	#if EV_USE_KQUEUE	768	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
591	#endif	770	#endif
592	#if EV_USE_EPOLL	771	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
594	#endif	773	#endif
595	#if EV_USEV_POLL	774	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
597	#endif	776	#endif
598	#if EV_USE_SELECT	777	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
600	#endif	779	#endif
		780
		781	ev_init (&sigev, sigcb);
		782	ev_set_priority (&sigev, EV_MAXPRI);
601	}	783	}
602	}	784	}
603		785
604	void	786	void
605	loop_destroy (EV_P)	787	loop_destroy (EV_P)
606	{	788	{
		789	int i;
		790
		791	#if EV_USE_WIN32
		792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		793	#endif
607	#if EV_USE_KQUEUE	794	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	796	#endif
610	#if EV_USE_EPOLL	797	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	799	#endif
613	#if EV_USEV_POLL	800	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	802	#endif
616	#if EV_USE_SELECT	803	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	805	#endif
619		806
		807	for (i = NUMPRI; i--; )
		808	array_free (pending, [i]);
		809
		810	/* have to use the microsoft-never-gets-it-right macro */
		811	array_free_microshit (fdchange);
		812	array_free_microshit (timer);
		813	#if EV_PERIODICS
		814	array_free_microshit (periodic);
		815	#endif
		816	array_free_microshit (idle);
		817	array_free_microshit (prepare);
		818	array_free_microshit (check);
		819
620	method = 0;	820	method = 0;
621	/TODO/
622	}	821	}
623		822
624	void	823	static void
625	loop_fork (EV_P)	824	loop_fork (EV_P)
626	{	825	{
627	/TODO/
628	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	828	#endif
631	#if EV_USE_KQUEUE	829	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
633	#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;
634	}	849	}
635		850
636	#if EV_MULTIPLICITY	851	#if EV_MULTIPLICITY
637	struct ev_loop *	852	struct ev_loop *
638	ev_loop_new (int methods)	853	ev_loop_new (int methods)
639	{	854	{
640	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		856
		857	memset (loop, 0, sizeof (struct ev_loop));
641		858
642	loop_init (EV_A_ methods);	859	loop_init (EV_A_ methods);
643		860
644	if (ev_methods (EV_A))	861	if (ev_method (EV_A))
645	return loop;	862	return loop;
646		863
647	return 0;	864	return 0;
648	}	865	}
649		866
650	void	867	void
651	ev_loop_destroy (EV_P)	868	ev_loop_destroy (EV_P)
652	{	869	{
653	loop_destroy (EV_A);	870	loop_destroy (EV_A);
654	free (loop);	871	ev_free (loop);
655	}	872	}
656		873
657	void	874	void
658	ev_loop_fork (EV_P)	875	ev_loop_fork (EV_P)
659	{	876	{
660	loop_fork (EV_A);	877	postfork = 1;
661	}	878	}
662		879
663	#endif	880	#endif
664		881
665	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	883	struct ev_loop *
670	#else	884	#else
671	static int default_loop;
672
673	int	885	int
674	#endif	886	#endif
675	ev_default_loop (int methods)	887	ev_default_loop (int methods)
676	{	888	{
677	if (sigpipe [0] == sigpipe [1])	889	if (sigpipe [0] == sigpipe [1])
…		…
688		900
689	loop_init (EV_A_ methods);	901	loop_init (EV_A_ methods);
690		902
691	if (ev_method (EV_A))	903	if (ev_method (EV_A))
692	{	904	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	905	siginit (EV_A);
696		906
697	#ifndef WIN32	907	#ifndef WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	909	ev_set_priority (&childev, EV_MAXPRI);
…		…
713	{	923	{
714	#if EV_MULTIPLICITY	924	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	925	struct ev_loop *loop = default_loop;
716	#endif	926	#endif
717		927
		928	#ifndef WIN32
718	ev_ref (EV_A); /* child watcher */	929	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	930	ev_signal_stop (EV_A_ &childev);
		931	#endif
720		932
721	ev_ref (EV_A); /* signal watcher */	933	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	934	ev_io_stop (EV_A_ &sigev);
723		935
724	close (sigpipe [0]); sigpipe [0] = 0;	936	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		938
727	loop_destroy (EV_A);	939	loop_destroy (EV_A);
728	}	940	}
729		941
730	void	942	void
731	ev_default_fork (EV_P)	943	ev_default_fork (void)
732	{	944	{
733	loop_fork (EV_A);	945	#if EV_MULTIPLICITY
		946	struct ev_loop *loop = default_loop;
		947	#endif
734		948
735	ev_io_stop (EV_A_ &sigev);	949	if (method)
736	close (sigpipe [0]);	950	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	951	}
743		952
744	/*****************************************************************************/	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	}
745		966
746	static void	967	static void
747	call_pending (EV_P)	968	call_pending (EV_P)
748	{	969	{
749	int pri;	970	int pri;
…		…
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		976
756	if (p->w)	977	if (p->w)
757	{	978	{
758	p->w->pending = 0;	979	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
760	}	981	}
761	}	982	}
762	}	983	}
763		984
764	static void	985	static void
765	timers_reify (EV_P)	986	timers_reify (EV_P)
766	{	987	{
767	while (timercnt && timers [0]->at <= mn_now)	988	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	989	{
769	struct ev_timer *w = timers [0];	990	struct ev_timer *w = timers [0];
		991
		992	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		993
771	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
772	if (w->repeat)	995	if (w->repeat)
773	{	996	{
774	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
775	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
776	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
777	}	1004	}
778	else	1005	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1007
781	event (EV_A_ (W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1009	}
783	}	1010	}
784		1011
		1012	#if EV_PERIODICS
785	static void	1013	static void
786	periodics_reify (EV_P)	1014	periodics_reify (EV_P)
787	{	1015	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1017	{
790	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
791		1019
		1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1021
792	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
793	if (w->interval)	1023	if (w->reschedule_cb)
794	{	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	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1032	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
796	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1033	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
797	downheap ((WT *)periodics, periodiccnt, 0);	1034	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1035	}
799	else	1036	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1038
802	event (EV_A_ (W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1040	}
804	}	1041	}
805		1042
806	static void	1043	static void
807	periodics_reschedule (EV_P)	1044	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
813	{	1050	{
814	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
815		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1055	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
819
820	if (fabs (diff) >= 1e-4)
821	{
822	ev_periodic_stop (EV_A_ w);
823	ev_periodic_start (EV_A_ w);
824
825	i = 0; /* restart loop, inefficient, but time jumps should be rare */
826	}
827	}
828	}	1057	}
		1058
		1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
829	}	1062	}
		1063	#endif
830		1064
831	inline int	1065	inline int
832	time_update_monotonic (EV_P)	1066	time_update_monotonic (EV_P)
833	{	1067	{
834	mn_now = get_clock ();	1068	mn_now = get_clock ();
835		1069
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1071	{
838	rt_now = rtmn_diff + mn_now;	1072	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1073	return 0;
840	}	1074	}
841	else	1075	else
842	{	1076	{
843	now_floor = mn_now;	1077	now_floor = mn_now;
844	rt_now = ev_time ();	1078	ev_rt_now = ev_time ();
845	return 1;	1079	return 1;
846	}	1080	}
847	}	1081	}
848		1082
849	static void	1083	static void
…		…
858	{	1092	{
859	ev_tstamp odiff = rtmn_diff;	1093	ev_tstamp odiff = rtmn_diff;
860		1094
861	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 */
862	{	1096	{
863	rtmn_diff = rt_now - mn_now;	1097	rtmn_diff = ev_rt_now - mn_now;
864		1098
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1100	return; /* all is well */
867		1101
868	rt_now = ev_time ();	1102	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1103	mn_now = get_clock ();
870	now_floor = mn_now;	1104	now_floor = mn_now;
871	}	1105	}
872		1106
		1107	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1108	periodics_reschedule (EV_A);
		1109	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1112	}
877	}	1113	}
878	else	1114	else
879	#endif	1115	#endif
880	{	1116	{
881	rt_now = ev_time ();	1117	ev_rt_now = ev_time ();
882		1118
883	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))
884	{	1120	{
		1121	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1122	periodics_reschedule (EV_A);
		1123	#endif
886		1124
887	/* 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 */
888	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1128	}
891		1129
892	mn_now = rt_now;	1130	mn_now = ev_rt_now;
893	}	1131	}
894	}	1132	}
895		1133
896	void	1134	void
897	ev_ref (EV_P)	1135	ev_ref (EV_P)
…		…
920	{	1158	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1160	call_pending (EV_A);
923	}	1161	}
924		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
925	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1168	fd_reify (EV_A);
927		1169
928	/* calculate blocking time */	1170	/* calculate blocking time */
929		1171
930	/* 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
931	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1176	time_update_monotonic (EV_A);
935	else	1177	else
936	#endif	1178	#endif
937	{	1179	{
938	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1181	mn_now = ev_rt_now;
940	}	1182	}
941		1183
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1185	block = 0.;
944	else	1186	else
945	{	1187	{
946	block = MAX_BLOCKTIME;	1188	block = MAX_BLOCKTIME;
947		1189
948	if (timercnt)	1190	if (timercnt)
949	{	1191	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1193	if (block > to) block = to;
952	}	1194	}
953		1195
		1196	#if EV_PERIODICS
954	if (periodiccnt)	1197	if (periodiccnt)
955	{	1198	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1200	if (block > to) block = to;
958	}	1201	}
		1202	#endif
959		1203
960	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
961	}	1205	}
962		1206
963	method_poll (EV_A_ block);	1207	method_poll (EV_A_ block);
964		1208
965	/* update rt_now, do magic */	1209	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1210	time_update (EV_A);
967		1211
968	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
971		1217
972	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1221
976	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
977	if (checkcnt)	1223	if (checkcnt)
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1053	return;	1299	return;
1054		1300
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1302
1057	ev_start (EV_A_ (W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1306
1061	fd_change (EV_A_ fd);	1307	fd_change (EV_A_ fd);
1062	}	1308	}
1063		1309
…		…
1066	{	1312	{
1067	ev_clear_pending (EV_A_ (W)w);	1313	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
1069	return;	1315	return;
1070		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1320	ev_stop (EV_A_ (W)w);
1073		1321
1074	fd_change (EV_A_ w->fd);	1322	fd_change (EV_A_ w->fd);
1075	}	1323	}
…		…
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1326	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1327	{
1080	if (ev_is_active (w))	1328	if (ev_is_active (w))
1081	return;	1329	return;
1082		1330
1083	w->at += mn_now;	1331	((WT)w)->at += mn_now;
1084		1332
1085	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.));
1086		1334
1087	ev_start (EV_A_ (W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1089	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
		1339
		1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1341	}
1092		1342
1093	void	1343	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1344	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1345	{
1096	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1347	if (!ev_is_active (w))
1098	return;	1348	return;
1099		1349
		1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1351
1100	if (w->active < timercnt--)	1352	if (((W)w)->active < timercnt--)
1101	{	1353	{
1102	timers [w->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1356	}
1105		1357
1106	w->at = w->repeat;	1358	((WT)w)->at -= mn_now;
1107		1359
1108	ev_stop (EV_A_ (W)w);	1360	ev_stop (EV_A_ (W)w);
1109	}	1361	}
1110		1362
1111	void	1363	void
1112	ev_timer_again (EV_P_ struct ev_timer *w)	1364	ev_timer_again (EV_P_ struct ev_timer *w)
1113	{	1365	{
1114	if (ev_is_active (w))	1366	if (ev_is_active (w))
1115	{	1367	{
1116	if (w->repeat)	1368	if (w->repeat)
1117	{
1118	w->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1120	}
1121	else	1370	else
1122	ev_timer_stop (EV_A_ w);	1371	ev_timer_stop (EV_A_ w);
1123	}	1372	}
1124	else if (w->repeat)	1373	else if (w->repeat)
1125	ev_timer_start (EV_A_ w);	1374	ev_timer_start (EV_A_ w);
1126	}	1375	}
1127		1376
		1377	#if EV_PERIODICS
1128	void	1378	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1379	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1380	{
1131	if (ev_is_active (w))	1381	if (ev_is_active (w))
1132	return;	1382	return;
1133		1383
		1384	if (w->reschedule_cb)
		1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1386	else if (w->interval)
		1387	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1388	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1135
1136	/* this formula differs from the one in periodic_reify because we do not always round up */	1389	/* this formula differs from the one in periodic_reify because we do not always round up */
1137	if (w->interval)
1138	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1391	}
1139		1392
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1393	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1142	periodics [periodiccnt - 1] = w;	1395	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1396	upheap ((WT *)periodics, periodiccnt - 1);
		1397
		1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1399	}
1145		1400
1146	void	1401	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1403	{
1149	ev_clear_pending (EV_A_ (W)w);	1404	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1405	if (!ev_is_active (w))
1151	return;	1406	return;
1152		1407
		1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1409
1153	if (w->active < periodiccnt--)	1410	if (((W)w)->active < periodiccnt--)
1154	{	1411	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1414	}
1158		1415
1159	ev_stop (EV_A_ (W)w);	1416	ev_stop (EV_A_ (W)w);
1160	}	1417	}
1161		1418
1162	void	1419	void
		1420	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1421	{
		1422	/* TODO: use adjustheap and recalculation */
		1423	ev_periodic_stop (EV_A_ w);
		1424	ev_periodic_start (EV_A_ w);
		1425	}
		1426	#endif
		1427
		1428	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1429	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1430	{
1165	if (ev_is_active (w))	1431	if (ev_is_active (w))
1166	return;	1432	return;
1167		1433
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1434	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1170	idles [idlecnt - 1] = w;	1436	idles [idlecnt - 1] = w;
1171	}	1437	}
1172		1438
1173	void	1439	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1440	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1441	{
1176	ev_clear_pending (EV_A_ (W)w);	1442	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1443	if (ev_is_active (w))
1178	return;	1444	return;
1179		1445
1180	idles [w->active - 1] = idles [--idlecnt];	1446	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1447	ev_stop (EV_A_ (W)w);
1182	}	1448	}
1183		1449
1184	void	1450	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1451	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1452	{
1187	if (ev_is_active (w))	1453	if (ev_is_active (w))
1188	return;	1454	return;
1189		1455
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1456	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1192	prepares [preparecnt - 1] = w;	1458	prepares [preparecnt - 1] = w;
1193	}	1459	}
1194		1460
1195	void	1461	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1463	{
1198	ev_clear_pending (EV_A_ (W)w);	1464	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1465	if (ev_is_active (w))
1200	return;	1466	return;
1201		1467
1202	prepares [w->active - 1] = prepares [--preparecnt];	1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1469	ev_stop (EV_A_ (W)w);
1204	}	1470	}
1205		1471
1206	void	1472	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1473	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1474	{
1209	if (ev_is_active (w))	1475	if (ev_is_active (w))
1210	return;	1476	return;
1211		1477
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1478	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1214	checks [checkcnt - 1] = w;	1480	checks [checkcnt - 1] = w;
1215	}	1481	}
1216		1482
1217	void	1483	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1484	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1485	{
1220	ev_clear_pending (EV_A_ (W)w);	1486	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1487	if (!ev_is_active (w))
1222	return;	1488	return;
1223		1489
1224	checks [w->active - 1] = checks [--checkcnt];	1490	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1491	ev_stop (EV_A_ (W)w);
1226	}	1492	}
1227		1493
1228	#ifndef SA_RESTART	1494	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1495	# define SA_RESTART 0
…		…
1239	return;	1505	return;
1240		1506
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1508
1243	ev_start (EV_A_ (W)w, 1);	1509	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1512
1247	if (!w->next)	1513	if (!((WL)w)->next)
1248	{	1514	{
		1515	#if WIN32
		1516	signal (w->signum, sighandler);
		1517	#else
1249	struct sigaction sa;	1518	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1519	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1520	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1521	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1522	sigaction (w->signum, &sa, 0);
		1523	#endif
1254	}	1524	}
1255	}	1525	}
1256		1526
1257	void	1527	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1528	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1283		1553
1284	void	1554	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1555	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1556	{
1287	ev_clear_pending (EV_A_ (W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1558	if (!ev_is_active (w))
1289	return;	1559	return;
1290		1560
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1562	ev_stop (EV_A_ (W)w);
1293	}	1563	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1578	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1579	void *arg = once->arg;
1310		1580
1311	ev_io_stop (EV_A_ &once->io);	1581	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1582	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1583	ev_free (once);
1314		1584
1315	cb (revents, arg);	1585	cb (revents, arg);
1316	}	1586	}
1317		1587
1318	static void	1588	static void
…		…
1328	}	1598	}
1329		1599
1330	void	1600	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1332	{	1602	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1604
1335	if (!once)	1605	if (!once)
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1607	else
1338	{	1608	{
1339	once->cb = cb;	1609	once->cb = cb;
1340	once->arg = arg;	1610	once->arg = arg;
1341		1611
1342	ev_watcher_init (&once->io, once_cb_io);	1612	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1613	if (fd >= 0)
1344	{	1614	{
1345	ev_io_set (&once->io, fd, events);	1615	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1616	ev_io_start (EV_A_ &once->io);
1347	}	1617	}
1348		1618
1349	ev_watcher_init (&once->to, once_cb_to);	1619	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1620	if (timeout >= 0.)
1351	{	1621	{
1352	ev_timer_set (&once->to, timeout, 0.);	1622	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1623	ev_timer_start (EV_A_ &once->to);
1354	}	1624	}
1355	}	1625	}
1356	}	1626	}
1357		1627
		1628	#ifdef __cplusplus
		1629	}
		1630	#endif
		1631

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Comparing libev/ev.c (file contents): Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs. Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC