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

Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC

…		…
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_STANDALONE	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
		33
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
		67	#include <time.h>
		68
		69	#include <signal.h>
		70
47	#ifndef WIN32	71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
48	# include <sys/wait.h>	74	# include <sys/wait.h>
49	#endif	75	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	76	/**/
54		77
55	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
57	#endif	80	#endif
58		81
59	#ifndef EV_USE_SELECT	82	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	83	# define EV_USE_SELECT 1
61	#endif	84	#endif
62		85
63	#ifndef EV_USEV_POLL	86	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	88	#endif
66		89
67	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
69	#endif	92	#endif
70		93
71	#ifndef EV_USE_KQUEUE	94	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
73	#endif	106	#endif
74		107
75	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
77	#endif	110	#endif
…		…
113		146
114	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
117		150
118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	static ev_tstamp rt_now;
120	static int method;
121		152
122	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
123		154
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	155	/*****************************************************************************/
125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
127		156
128	static int activecnt; /* number of active events */	157	static void (syserr_cb)(const char msg);
129		158
130	#if EV_USE_SELECT	159	void ev_set_syserr_cb (void (cb)(const char msg))
131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;	160	{
132	static int vec_max;	161	syserr_cb = cb;
133	#endif	162	}
134		163
135	#if EV_USEV_POLL	164	static void
136	static struct pollfd *polls;	165	syserr (const char *msg)
137	static int pollmax, pollcnt;	166	{
138	static int pollidxs; / maps fds into structure indices */	167	if (!msg)
139	static int pollidxmax;	168	msg = "(libev) system error";
140	#endif
141		169
142	#if EV_USE_EPOLL	170	if (syserr_cb)
143	static int epoll_fd = -1;	171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
144		178
145	static struct epoll_event *events;	179	static void (alloc)(void *ptr, long size);
146	static int eventmax;
147	#endif
148		180
149	#if EV_USE_KQUEUE	181	void ev_set_allocator (void (cb)(void *ptr, long size))
150	static int kqueue_fd;	182	{
151	static struct kevent *kqueue_changes;	183	alloc = cb;
152	static int kqueue_changemax, kqueue_changecnt;	184	}
153	static struct kevent *kqueue_events;	185
154	static int kqueue_eventmax;	186	static void *
		187	ev_realloc (void *ptr, long size)
		188	{
		189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		190
		191	if (!ptr && size)
		192	{
		193	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		194	abort ();
		195	}
		196
		197	return ptr;
		198	}
		199
		200	#define ev_malloc(size) ev_realloc (0, (size))
		201	#define ev_free(ptr) ev_realloc ((ptr), 0)
		202
		203	/*****************************************************************************/
		204
		205	typedef struct
		206	{
		207	WL head;
		208	unsigned char events;
		209	unsigned char reify;
		210	} ANFD;
		211
		212	typedef struct
		213	{
		214	W w;
		215	int events;
		216	} ANPENDING;
		217
		218	#if EV_MULTIPLICITY
		219
		220	struct ev_loop
		221	{
		222	# define VAR(name,decl) decl;
		223	# include "ev_vars.h"
		224	};
		225	# undef VAR
		226	# include "ev_wrap.h"
		227
		228	#else
		229
		230	# define VAR(name,decl) static decl;
		231	# include "ev_vars.h"
		232	# undef VAR
		233
155	#endif	234	#endif
156		235
157	/*****************************************************************************/	236	/*****************************************************************************/
158		237
159	inline ev_tstamp	238	inline ev_tstamp
…		…
189	ev_now (EV_P)	268	ev_now (EV_P)
190	{	269	{
191	return rt_now;	270	return rt_now;
192	}	271	}
193		272
194	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(type,n) ((n) \| 4 & ~3)
195		274
196	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
197	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
198	{ \	277	{ \
199	int newcnt = cur; \	278	int newcnt = cur; \
200	do \	279	do \
201	{ \	280	{ \
202	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
203	} \	282	} \
204	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
205	\	284	\
206	base = realloc (base, sizeof (base) (newcnt)); \	285	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
207	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
208	cur = newcnt; \	287	cur = newcnt; \
209	}	288	}
		289
		290	#define array_slim(type,stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		296	}
		297
		298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		300	#define array_free_microshit(stem) \
		301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		302
		303	#define array_free(stem, idx) \
		304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
210		305
211	/*****************************************************************************/	306	/*****************************************************************************/
212
213	typedef struct
214	{
215	struct ev_watcher_list *head;
216	unsigned char events;
217	unsigned char reify;
218	} ANFD;
219
220	static ANFD *anfds;
221	static int anfdmax;
222		307
223	static void	308	static void
224	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
225	{	310	{
226	while (count--)	311	while (count--)
…		…
231		316
232	++base;	317	++base;
233	}	318	}
234	}	319	}
235		320
236	typedef struct	321	void
237	{
238	W w;
239	int events;
240	} ANPENDING;
241
242	static ANPENDING *pendings [NUMPRI];
243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244
245	static void
246	event (EV_P_ W w, int events)	322	ev_feed_event (EV_P_ void *w, int revents)
247	{	323	{
		324	W w_ = (W)w;
		325
248	if (w->pending)	326	if (w_->pending)
249	{	327	{
250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
251	return;	329	return;
252	}	330	}
253		331
254	w->pending = ++pendingcnt [ABSPRI (w)];	332	w_->pending = ++pendingcnt [ABSPRI (w_)];
255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
256	pendings [ABSPRI (w)][w->pending - 1].w = w;	334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
257	pendings [ABSPRI (w)][w->pending - 1].events = events;	335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
258	}	336	}
259		337
260	static void	338	static void
261	queue_events (EV_P_ W *events, int eventcnt, int type)	339	queue_events (EV_P_ W *events, int eventcnt, int type)
262	{	340	{
263	int i;	341	int i;
264		342
265	for (i = 0; i < eventcnt; ++i)	343	for (i = 0; i < eventcnt; ++i)
266	event (EV_A_ events [i], type);	344	ev_feed_event (EV_A_ events [i], type);
267	}	345	}
268		346
269	static void	347	inline void
270	fd_event (EV_P_ int fd, int events)	348	fd_event (EV_P_ int fd, int revents)
271	{	349	{
272	ANFD *anfd = anfds + fd;	350	ANFD *anfd = anfds + fd;
273	struct ev_io *w;	351	struct ev_io *w;
274		352
275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
276	{	354	{
277	int ev = w->events & events;	355	int ev = w->events & revents;
278		356
279	if (ev)	357	if (ev)
280	event (EV_A_ (W)w, ev);	358	ev_feed_event (EV_A_ (W)w, ev);
281	}	359	}
		360	}
		361
		362	void
		363	ev_feed_fd_event (EV_P_ int fd, int revents)
		364	{
		365	fd_event (EV_A_ fd, revents);
282	}	366	}
283		367
284	/*****************************************************************************/	368	/*****************************************************************************/
285
286	static int *fdchanges;
287	static int fdchangemax, fdchangecnt;
288		369
289	static void	370	static void
290	fd_reify (EV_P)	371	fd_reify (EV_P)
291	{	372	{
292	int i;	373	int i;
…		…
302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	383	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
303	events \|= w->events;	384	events \|= w->events;
304		385
305	anfd->reify = 0;	386	anfd->reify = 0;
306		387
307	if (anfd->events != events)
308	{
309	method_modify (EV_A_ fd, anfd->events, events);	388	method_modify (EV_A_ fd, anfd->events, events);
310	anfd->events = events;	389	anfd->events = events;
311	}
312	}	390	}
313		391
314	fdchangecnt = 0;	392	fdchangecnt = 0;
315	}	393	}
316		394
317	static void	395	static void
318	fd_change (EV_P_ int fd)	396	fd_change (EV_P_ int fd)
319	{	397	{
320	if (anfds [fd].reify \|\| fdchangecnt < 0)	398	if (anfds [fd].reify)
321	return;	399	return;
322		400
323	anfds [fd].reify = 1;	401	anfds [fd].reify = 1;
324		402
325	++fdchangecnt;	403	++fdchangecnt;
326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	404	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
327	fdchanges [fdchangecnt - 1] = fd;	405	fdchanges [fdchangecnt - 1] = fd;
328	}	406	}
329		407
330	static void	408	static void
331	fd_kill (EV_P_ int fd)	409	fd_kill (EV_P_ int fd)
…		…
333	struct ev_io *w;	411	struct ev_io *w;
334		412
335	while ((w = (struct ev_io *)anfds [fd].head))	413	while ((w = (struct ev_io *)anfds [fd].head))
336	{	414	{
337	ev_io_stop (EV_A_ w);	415	ev_io_stop (EV_A_ w);
338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	416	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
339	}	417	}
		418	}
		419
		420	static int
		421	fd_valid (int fd)
		422	{
		423	#ifdef WIN32
		424	return !!win32_get_osfhandle (fd);
		425	#else
		426	return fcntl (fd, F_GETFD) != -1;
		427	#endif
340	}	428	}
341		429
342	/* called on EBADF to verify fds */	430	/* called on EBADF to verify fds */
343	static void	431	static void
344	fd_ebadf (EV_P)	432	fd_ebadf (EV_P)
345	{	433	{
346	int fd;	434	int fd;
347		435
348	for (fd = 0; fd < anfdmax; ++fd)	436	for (fd = 0; fd < anfdmax; ++fd)
349	if (anfds [fd].events)	437	if (anfds [fd].events)
350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	438	if (!fd_valid (fd) == -1 && errno == EBADF)
351	fd_kill (EV_A_ fd);	439	fd_kill (EV_A_ fd);
352	}	440	}
353		441
354	/* called on ENOMEM in select/poll to kill some fds and retry */	442	/* called on ENOMEM in select/poll to kill some fds and retry */
355	static void	443	static void
356	fd_enomem (EV_P)	444	fd_enomem (EV_P)
357	{	445	{
358	int fd = anfdmax;	446	int fd;
359		447
360	while (fd--)	448	for (fd = anfdmax; fd--; )
361	if (anfds [fd].events)	449	if (anfds [fd].events)
362	{	450	{
363	close (fd);
364	fd_kill (EV_A_ fd);	451	fd_kill (EV_A_ fd);
365	return;	452	return;
366	}	453	}
367	}	454	}
368		455
		456	/* usually called after fork if method needs to re-arm all fds from scratch */
		457	static void
		458	fd_rearm_all (EV_P)
		459	{
		460	int fd;
		461
		462	/* this should be highly optimised to not do anything but set a flag */
		463	for (fd = 0; fd < anfdmax; ++fd)
		464	if (anfds [fd].events)
		465	{
		466	anfds [fd].events = 0;
		467	fd_change (EV_A_ fd);
		468	}
		469	}
		470
369	/*****************************************************************************/	471	/*****************************************************************************/
370		472
371	static struct ev_timer **timers;
372	static int timermax, timercnt;
373
374	static struct ev_periodic **periodics;
375	static int periodicmax, periodiccnt;
376
377	static void	473	static void
378	upheap (WT *timers, int k)	474	upheap (WT *heap, int k)
379	{	475	{
380	WT w = timers [k];	476	WT w = heap [k];
381		477
382	while (k && timers [k >> 1]->at > w->at)	478	while (k && heap [k >> 1]->at > w->at)
383	{	479	{
384	timers [k] = timers [k >> 1];	480	heap [k] = heap [k >> 1];
385	timers [k]->active = k + 1;	481	((W)heap [k])->active = k + 1;
386	k >>= 1;	482	k >>= 1;
387	}	483	}
388		484
389	timers [k] = w;	485	heap [k] = w;
390	timers [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
391		487
392	}	488	}
393		489
394	static void	490	static void
395	downheap (WT *timers, int N, int k)	491	downheap (WT *heap, int N, int k)
396	{	492	{
397	WT w = timers [k];	493	WT w = heap [k];
398		494
399	while (k < (N >> 1))	495	while (k < (N >> 1))
400	{	496	{
401	int j = k << 1;	497	int j = k << 1;
402		498
403	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	499	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404	++j;	500	++j;
405		501
406	if (w->at <= timers [j]->at)	502	if (w->at <= heap [j]->at)
407	break;	503	break;
408		504
409	timers [k] = timers [j];	505	heap [k] = heap [j];
410	timers [k]->active = k + 1;	506	((W)heap [k])->active = k + 1;
411	k = j;	507	k = j;
412	}	508	}
413		509
414	timers [k] = w;	510	heap [k] = w;
415	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
416	}	512	}
417		513
418	/*****************************************************************************/	514	/*****************************************************************************/
419		515
420	typedef struct	516	typedef struct
421	{	517	{
422	struct ev_watcher_list *head;	518	WL head;
423	sig_atomic_t volatile gotsig;	519	sig_atomic_t volatile gotsig;
424	} ANSIG;	520	} ANSIG;
425		521
426	static ANSIG *signals;	522	static ANSIG *signals;
427	static int signalmax;	523	static int signalmax;
…		…
443	}	539	}
444		540
445	static void	541	static void
446	sighandler (int signum)	542	sighandler (int signum)
447	{	543	{
		544	#if WIN32
		545	signal (signum, sighandler);
		546	#endif
		547
448	signals [signum - 1].gotsig = 1;	548	signals [signum - 1].gotsig = 1;
449		549
450	if (!gotsig)	550	if (!gotsig)
451	{	551	{
452	int old_errno = errno;	552	int old_errno = errno;
453	gotsig = 1;	553	gotsig = 1;
		554	#ifdef WIN32
		555	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		556	#else
454	write (sigpipe [1], &signum, 1);	557	write (sigpipe [1], &signum, 1);
		558	#endif
455	errno = old_errno;	559	errno = old_errno;
456	}	560	}
457	}	561	}
458		562
		563	void
		564	ev_feed_signal_event (EV_P_ int signum)
		565	{
		566	#if EV_MULTIPLICITY
		567	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		568	#endif
		569
		570	--signum;
		571
		572	if (signum < 0 \|\| signum >= signalmax)
		573	return;
		574
		575	signals [signum].gotsig = 0;
		576
		577	for (w = signals [signum].head; w; w = w->next)
		578	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		579	}
		580
459	static void	581	static void
460	sigcb (EV_P_ struct ev_io *iow, int revents)	582	sigcb (EV_P_ struct ev_io *iow, int revents)
461	{	583	{
462	struct ev_watcher_list *w;	584	WL w;
463	int signum;	585	int signum;
464		586
		587	#ifdef WIN32
		588	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		589	#else
465	read (sigpipe [0], &revents, 1);	590	read (sigpipe [0], &revents, 1);
		591	#endif
466	gotsig = 0;	592	gotsig = 0;
467		593
468	for (signum = signalmax; signum--; )	594	for (signum = signalmax; signum--; )
469	if (signals [signum].gotsig)	595	if (signals [signum].gotsig)
470	{	596	sigevent (EV_A_ signum + 1);
471	signals [signum].gotsig = 0;
472
473	for (w = signals [signum].head; w; w = w->next)
474	event (EV_A_ (W)w, EV_SIGNAL);
475	}
476	}	597	}
477		598
478	static void	599	static void
479	siginit (EV_P)	600	siginit (EV_P)
480	{	601	{
…		…
486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	607	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	608	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488	#endif	609	#endif
489		610
490	ev_io_set (&sigev, sigpipe [0], EV_READ);	611	ev_io_set (&sigev, sigpipe [0], EV_READ);
491	ev_io_start (&sigev);	612	ev_io_start (EV_A_ &sigev);
		613	ev_unref (EV_A); /* child watcher should not keep loop alive */
492	}	614	}
493		615
494	/*****************************************************************************/	616	/*****************************************************************************/
495		617
496	static struct ev_idle **idles;
497	static int idlemax, idlecnt;
498
499	static struct ev_prepare **prepares;
500	static int preparemax, preparecnt;
501
502	static struct ev_check **checks;
503	static int checkmax, checkcnt;
504
505	/*****************************************************************************/
506
507	static struct ev_child *childs [PID_HASHSIZE];	618	static struct ev_child *childs [PID_HASHSIZE];
		619
		620	#ifndef WIN32
		621
508	static struct ev_signal childev;	622	static struct ev_signal childev;
509
510	#ifndef WIN32
511		623
512	#ifndef WCONTINUED	624	#ifndef WCONTINUED
513	# define WCONTINUED 0	625	# define WCONTINUED 0
514	#endif	626	#endif
515		627
…		…
519	struct ev_child *w;	631	struct ev_child *w;
520		632
521	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	633	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
522	if (w->pid == pid \|\| !w->pid)	634	if (w->pid == pid \|\| !w->pid)
523	{	635	{
524	w->priority = sw->priority; /* need to do it now */	636	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	637	w->rpid = pid;
526	w->rstatus = status;	638	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	639	ev_feed_event (EV_A_ (W)w, EV_CHILD);
528	}	640	}
529	}	641	}
530		642
531	static void	643	static void
532	childcb (EV_P_ struct ev_signal *sw, int revents)	644	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
534	int pid, status;	646	int pid, status;
535		647
536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	648	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
537	{	649	{
538	/* make sure we are called again until all childs have been reaped */	650	/* make sure we are called again until all childs have been reaped */
539	event (EV_A_ (W)sw, EV_SIGNAL);	651	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
540		652
541	child_reap (EV_A_ sw, pid, pid, status);	653	child_reap (EV_A_ sw, pid, pid, status);
542	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	654	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
543	}	655	}
544	}	656	}
…		…
551	# include "ev_kqueue.c"	663	# include "ev_kqueue.c"
552	#endif	664	#endif
553	#if EV_USE_EPOLL	665	#if EV_USE_EPOLL
554	# include "ev_epoll.c"	666	# include "ev_epoll.c"
555	#endif	667	#endif
556	#if EV_USEV_POLL	668	#if EV_USE_POLL
557	# include "ev_poll.c"	669	# include "ev_poll.c"
558	#endif	670	#endif
559	#if EV_USE_SELECT	671	#if EV_USE_SELECT
560	# include "ev_select.c"	672	# include "ev_select.c"
561	#endif	673	#endif
…		…
588	ev_method (EV_P)	700	ev_method (EV_P)
589	{	701	{
590	return method;	702	return method;
591	}	703	}
592		704
593	int	705	static void
594	ev_init (EV_P_ int methods)	706	loop_init (EV_P_ int methods)
595	{	707	{
596	if (!method)	708	if (!method)
597	{	709	{
598	#if EV_USE_MONOTONIC	710	#if EV_USE_MONOTONIC
599	{	711	{
…		…
604	#endif	716	#endif
605		717
606	rt_now = ev_time ();	718	rt_now = ev_time ();
607	mn_now = get_clock ();	719	mn_now = get_clock ();
608	now_floor = mn_now;	720	now_floor = mn_now;
609	diff = rt_now - mn_now;	721	rtmn_diff = rt_now - mn_now;
610
611	if (pipe (sigpipe))
612	return 0;
613		722
614	if (methods == EVMETHOD_AUTO)	723	if (methods == EVMETHOD_AUTO)
615	if (!enable_secure () && getenv ("LIBmethodS"))	724	if (!enable_secure () && getenv ("LIBEV_METHODS"))
616	methods = atoi (getenv ("LIBmethodS"));	725	methods = atoi (getenv ("LIBEV_METHODS"));
617	else	726	else
618	methods = EVMETHOD_ANY;	727	methods = EVMETHOD_ANY;
619		728
620	method = 0;	729	method = 0;
		730	#if EV_USE_WIN32
		731	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		732	#endif
621	#if EV_USE_KQUEUE	733	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	734	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
623	#endif	735	#endif
624	#if EV_USE_EPOLL	736	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	737	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
626	#endif	738	#endif
627	#if EV_USEV_POLL	739	#if EV_USE_POLL
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	740	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629	#endif	741	#endif
630	#if EV_USE_SELECT	742	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	743	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632	#endif	744	#endif
633		745
		746	ev_watcher_init (&sigev, sigcb);
		747	ev_set_priority (&sigev, EV_MAXPRI);
		748	}
		749	}
		750
		751	void
		752	loop_destroy (EV_P)
		753	{
		754	int i;
		755
		756	#if EV_USE_WIN32
		757	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		758	#endif
		759	#if EV_USE_KQUEUE
		760	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		761	#endif
		762	#if EV_USE_EPOLL
		763	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		764	#endif
		765	#if EV_USE_POLL
		766	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		767	#endif
		768	#if EV_USE_SELECT
		769	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		770	#endif
		771
		772	for (i = NUMPRI; i--; )
		773	array_free (pending, [i]);
		774
		775	/* have to use the microsoft-never-gets-it-right macro */
		776	array_free_microshit (fdchange);
		777	array_free_microshit (timer);
		778	array_free_microshit (periodic);
		779	array_free_microshit (idle);
		780	array_free_microshit (prepare);
		781	array_free_microshit (check);
		782
		783	method = 0;
		784	}
		785
		786	static void
		787	loop_fork (EV_P)
		788	{
		789	#if EV_USE_EPOLL
		790	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		791	#endif
		792	#if EV_USE_KQUEUE
		793	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		794	#endif
		795
		796	if (ev_is_active (&sigev))
		797	{
		798	/* default loop */
		799
		800	ev_ref (EV_A);
		801	ev_io_stop (EV_A_ &sigev);
		802	close (sigpipe [0]);
		803	close (sigpipe [1]);
		804
		805	while (pipe (sigpipe))
		806	syserr ("(libev) error creating pipe");
		807
		808	siginit (EV_A);
		809	}
		810
		811	postfork = 0;
		812	}
		813
		814	#if EV_MULTIPLICITY
		815	struct ev_loop *
		816	ev_loop_new (int methods)
		817	{
		818	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		819
		820	memset (loop, 0, sizeof (struct ev_loop));
		821
		822	loop_init (EV_A_ methods);
		823
		824	if (ev_method (EV_A))
		825	return loop;
		826
		827	return 0;
		828	}
		829
		830	void
		831	ev_loop_destroy (EV_P)
		832	{
		833	loop_destroy (EV_A);
		834	ev_free (loop);
		835	}
		836
		837	void
		838	ev_loop_fork (EV_P)
		839	{
		840	postfork = 1;
		841	}
		842
		843	#endif
		844
		845	#if EV_MULTIPLICITY
		846	struct ev_loop default_loop_struct;
		847	static struct ev_loop *default_loop;
		848
		849	struct ev_loop *
		850	#else
		851	static int default_loop;
		852
		853	int
		854	#endif
		855	ev_default_loop (int methods)
		856	{
		857	if (sigpipe [0] == sigpipe [1])
		858	if (pipe (sigpipe))
		859	return 0;
		860
		861	if (!default_loop)
		862	{
		863	#if EV_MULTIPLICITY
		864	struct ev_loop *loop = default_loop = &default_loop_struct;
		865	#else
		866	default_loop = 1;
		867	#endif
		868
		869	loop_init (EV_A_ methods);
		870
634	if (method)	871	if (ev_method (EV_A))
635	{	872	{
636	ev_watcher_init (&sigev, sigcb);
637	ev_set_priority (&sigev, EV_MAXPRI);
638	siginit (EV_A);	873	siginit (EV_A);
639		874
640	#ifndef WIN32	875	#ifndef WIN32
641	ev_signal_init (&childev, childcb, SIGCHLD);	876	ev_signal_init (&childev, childcb, SIGCHLD);
642	ev_set_priority (&childev, EV_MAXPRI);	877	ev_set_priority (&childev, EV_MAXPRI);
643	ev_signal_start (EV_A_ &childev);	878	ev_signal_start (EV_A_ &childev);
		879	ev_unref (EV_A); /* child watcher should not keep loop alive */
644	#endif	880	#endif
645	}	881	}
		882	else
		883	default_loop = 0;
646	}	884	}
647		885
648	return method;	886	return default_loop;
		887	}
		888
		889	void
		890	ev_default_destroy (void)
		891	{
		892	#if EV_MULTIPLICITY
		893	struct ev_loop *loop = default_loop;
		894	#endif
		895
		896	#ifndef WIN32
		897	ev_ref (EV_A); /* child watcher */
		898	ev_signal_stop (EV_A_ &childev);
		899	#endif
		900
		901	ev_ref (EV_A); /* signal watcher */
		902	ev_io_stop (EV_A_ &sigev);
		903
		904	close (sigpipe [0]); sigpipe [0] = 0;
		905	close (sigpipe [1]); sigpipe [1] = 0;
		906
		907	loop_destroy (EV_A);
		908	}
		909
		910	void
		911	ev_default_fork (void)
		912	{
		913	#if EV_MULTIPLICITY
		914	struct ev_loop *loop = default_loop;
		915	#endif
		916
		917	if (method)
		918	postfork = 1;
649	}	919	}
650		920
651	/*****************************************************************************/	921	/*****************************************************************************/
652		922
653	void	923	static int
654	ev_fork_prepare (void)	924	any_pending (EV_P)
655	{	925	{
656	/* nop */	926	int pri;
657	}
658		927
659	void	928	for (pri = NUMPRI; pri--; )
660	ev_fork_parent (void)	929	if (pendingcnt [pri])
661	{	930	return 1;
662	/* nop */
663	}
664		931
665	void	932	return 0;
666	ev_fork_child (void)
667	{
668	#if EV_USE_EPOLL
669	if (method == EVMETHOD_EPOLL)
670	epoll_postfork_child ();
671	#endif
672
673	ev_io_stop (&sigev);
674	close (sigpipe [0]);
675	close (sigpipe [1]);
676	pipe (sigpipe);
677	siginit ();
678	}	933	}
679
680	/*****************************************************************************/
681		934
682	static void	935	static void
683	call_pending (EV_P)	936	call_pending (EV_P)
684	{	937	{
685	int pri;	938	int pri;
…		…
698	}	951	}
699		952
700	static void	953	static void
701	timers_reify (EV_P)	954	timers_reify (EV_P)
702	{	955	{
703	while (timercnt && timers [0]->at <= mn_now)	956	while (timercnt && ((WT)timers [0])->at <= mn_now)
704	{	957	{
705	struct ev_timer *w = timers [0];	958	struct ev_timer *w = timers [0];
		959
		960	assert (("inactive timer on timer heap detected", ev_is_active (w)));
706		961
707	/* first reschedule or stop timer */	962	/* first reschedule or stop timer */
708	if (w->repeat)	963	if (w->repeat)
709	{	964	{
710	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	965	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
711	w->at = mn_now + w->repeat;	966	((WT)w)->at = mn_now + w->repeat;
712	downheap ((WT *)timers, timercnt, 0);	967	downheap ((WT *)timers, timercnt, 0);
713	}	968	}
714	else	969	else
715	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	970	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
716		971
717	event ((W)w, EV_TIMEOUT);	972	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
718	}	973	}
719	}	974	}
720		975
721	static void	976	static void
722	periodics_reify (EV_P)	977	periodics_reify (EV_P)
723	{	978	{
724	while (periodiccnt && periodics [0]->at <= rt_now)	979	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
725	{	980	{
726	struct ev_periodic *w = periodics [0];	981	struct ev_periodic *w = periodics [0];
727		982
		983	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		984
728	/* first reschedule or stop timer */	985	/* first reschedule or stop timer */
729	if (w->interval)	986	if (w->reschedule_cb)
730	{	987	{
		988	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		989
		990	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		991	downheap ((WT *)periodics, periodiccnt, 0);
		992	}
		993	else if (w->interval)
		994	{
731	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	995	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
732	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	996	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
733	downheap ((WT *)periodics, periodiccnt, 0);	997	downheap ((WT *)periodics, periodiccnt, 0);
734	}	998	}
735	else	999	else
736	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1000	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
737		1001
738	event (EV_A_ (W)w, EV_PERIODIC);	1002	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
739	}	1003	}
740	}	1004	}
741		1005
742	static void	1006	static void
743	periodics_reschedule (EV_P_ ev_tstamp diff)	1007	periodics_reschedule (EV_P)
744	{	1008	{
745	int i;	1009	int i;
746		1010
747	/* adjust periodics after time jump */	1011	/* adjust periodics after time jump */
748	for (i = 0; i < periodiccnt; ++i)	1012	for (i = 0; i < periodiccnt; ++i)
749	{	1013	{
750	struct ev_periodic *w = periodics [i];	1014	struct ev_periodic *w = periodics [i];
751		1015
		1016	if (w->reschedule_cb)
		1017	((WT)w)->at = w->reschedule_cb (w, rt_now);
752	if (w->interval)	1018	else if (w->interval)
753	{
754	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1019	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
755
756	if (fabs (diff) >= 1e-4)
757	{
758	ev_periodic_stop (EV_A_ w);
759	ev_periodic_start (EV_A_ w);
760
761	i = 0; /* restart loop, inefficient, but time jumps should be rare */
762	}
763	}
764	}	1020	}
		1021
		1022	/* now rebuild the heap */
		1023	for (i = periodiccnt >> 1; i--; )
		1024	downheap ((WT *)periodics, periodiccnt, i);
765	}	1025	}
766		1026
767	inline int	1027	inline int
768	time_update_monotonic (EV_P)	1028	time_update_monotonic (EV_P)
769	{	1029	{
770	mn_now = get_clock ();	1030	mn_now = get_clock ();
771		1031
772	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1032	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
773	{	1033	{
774	rt_now = mn_now + diff;	1034	rt_now = rtmn_diff + mn_now;
775	return 0;	1035	return 0;
776	}	1036	}
777	else	1037	else
778	{	1038	{
779	now_floor = mn_now;	1039	now_floor = mn_now;
…		…
790	#if EV_USE_MONOTONIC	1050	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1051	if (expect_true (have_monotonic))
792	{	1052	{
793	if (time_update_monotonic (EV_A))	1053	if (time_update_monotonic (EV_A))
794	{	1054	{
795	ev_tstamp odiff = diff;	1055	ev_tstamp odiff = rtmn_diff;
796		1056
797	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1057	for (i = 4; --i; ) /* loop a few times, before making important decisions */
798	{	1058	{
799	diff = rt_now - mn_now;	1059	rtmn_diff = rt_now - mn_now;
800		1060
801	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1061	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
802	return; /* all is well */	1062	return; /* all is well */
803		1063
804	rt_now = ev_time ();	1064	rt_now = ev_time ();
805	mn_now = get_clock ();	1065	mn_now = get_clock ();
806	now_floor = mn_now;	1066	now_floor = mn_now;
807	}	1067	}
808		1068
809	periodics_reschedule (EV_A_ diff - odiff);	1069	periodics_reschedule (EV_A);
810	/* no timer adjustment, as the monotonic clock doesn't jump */	1070	/* no timer adjustment, as the monotonic clock doesn't jump */
		1071	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
811	}	1072	}
812	}	1073	}
813	else	1074	else
814	#endif	1075	#endif
815	{	1076	{
816	rt_now = ev_time ();	1077	rt_now = ev_time ();
817		1078
818	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1079	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
819	{	1080	{
820	periodics_reschedule (EV_A_ rt_now - mn_now);	1081	periodics_reschedule (EV_A);
821		1082
822	/* adjust timers. this is easy, as the offset is the same for all */	1083	/* adjust timers. this is easy, as the offset is the same for all */
823	for (i = 0; i < timercnt; ++i)	1084	for (i = 0; i < timercnt; ++i)
824	timers [i]->at += diff;	1085	((WT)timers [i])->at += rt_now - mn_now;
825	}	1086	}
826		1087
827	mn_now = rt_now;	1088	mn_now = rt_now;
828	}	1089	}
829	}	1090	}
…		…
855	{	1116	{
856	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1117	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
857	call_pending (EV_A);	1118	call_pending (EV_A);
858	}	1119	}
859		1120
		1121	/* we might have forked, so reify kernel state if necessary */
		1122	if (expect_false (postfork))
		1123	loop_fork (EV_A);
		1124
860	/* update fd-related kernel structures */	1125	/* update fd-related kernel structures */
861	fd_reify (EV_A);	1126	fd_reify (EV_A);
862		1127
863	/* calculate blocking time */	1128	/* calculate blocking time */
864		1129
865	/* we only need this for !monotonic clockor timers, but as we basically	1130	/* we only need this for !monotonic clock or timers, but as we basically
866	always have timers, we just calculate it always */	1131	always have timers, we just calculate it always */
867	#if EV_USE_MONOTONIC	1132	#if EV_USE_MONOTONIC
868	if (expect_true (have_monotonic))	1133	if (expect_true (have_monotonic))
869	time_update_monotonic (EV_A);	1134	time_update_monotonic (EV_A);
870	else	1135	else
…		…
880	{	1145	{
881	block = MAX_BLOCKTIME;	1146	block = MAX_BLOCKTIME;
882		1147
883	if (timercnt)	1148	if (timercnt)
884	{	1149	{
885	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1150	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
886	if (block > to) block = to;	1151	if (block > to) block = to;
887	}	1152	}
888		1153
889	if (periodiccnt)	1154	if (periodiccnt)
890	{	1155	{
891	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1156	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
892	if (block > to) block = to;	1157	if (block > to) block = to;
893	}	1158	}
894		1159
895	if (block < 0.) block = 0.;	1160	if (block < 0.) block = 0.;
896	}	1161	}
…		…
903	/* queue pending timers and reschedule them */	1168	/* queue pending timers and reschedule them */
904	timers_reify (EV_A); /* relative timers called last */	1169	timers_reify (EV_A); /* relative timers called last */
905	periodics_reify (EV_A); /* absolute timers called first */	1170	periodics_reify (EV_A); /* absolute timers called first */
906		1171
907	/* queue idle watchers unless io or timers are pending */	1172	/* queue idle watchers unless io or timers are pending */
908	if (!pendingcnt)	1173	if (idlecnt && !any_pending (EV_A))
909	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1174	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
910		1175
911	/* queue check watchers, to be executed first */	1176	/* queue check watchers, to be executed first */
912	if (checkcnt)	1177	if (checkcnt)
913	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1178	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
914		1179
915	call_pending (EV_A);	1180	call_pending (EV_A);
916	printf ("activecnt %d\n", activecnt);//D
917	}	1181	}
918	while (activecnt && !loop_done);	1182	while (activecnt && !loop_done);
919		1183
920	if (loop_done != 2)	1184	if (loop_done != 2)
921	loop_done = 0;	1185	loop_done = 0;
…		…
989	return;	1253	return;
990		1254
991	assert (("ev_io_start called with negative fd", fd >= 0));	1255	assert (("ev_io_start called with negative fd", fd >= 0));
992		1256
993	ev_start (EV_A_ (W)w, 1);	1257	ev_start (EV_A_ (W)w, 1);
994	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1258	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
995	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1259	wlist_add ((WL *)&anfds[fd].head, (WL)w);
996		1260
997	fd_change (EV_A_ fd);	1261	fd_change (EV_A_ fd);
998	}	1262	}
999		1263
…		…
1014	ev_timer_start (EV_P_ struct ev_timer *w)	1278	ev_timer_start (EV_P_ struct ev_timer *w)
1015	{	1279	{
1016	if (ev_is_active (w))	1280	if (ev_is_active (w))
1017	return;	1281	return;
1018		1282
1019	w->at += mn_now;	1283	((WT)w)->at += mn_now;
1020		1284
1021	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1285	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1022		1286
1023	ev_start (EV_A_ (W)w, ++timercnt);	1287	ev_start (EV_A_ (W)w, ++timercnt);
1024	array_needsize (timers, timermax, timercnt, );	1288	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1025	timers [timercnt - 1] = w;	1289	timers [timercnt - 1] = w;
1026	upheap ((WT *)timers, timercnt - 1);	1290	upheap ((WT *)timers, timercnt - 1);
		1291
		1292	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1027	}	1293	}
1028		1294
1029	void	1295	void
1030	ev_timer_stop (EV_P_ struct ev_timer *w)	1296	ev_timer_stop (EV_P_ struct ev_timer *w)
1031	{	1297	{
1032	ev_clear_pending (EV_A_ (W)w);	1298	ev_clear_pending (EV_A_ (W)w);
1033	if (!ev_is_active (w))	1299	if (!ev_is_active (w))
1034	return;	1300	return;
1035		1301
		1302	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1303
1036	if (w->active < timercnt--)	1304	if (((W)w)->active < timercnt--)
1037	{	1305	{
1038	timers [w->active - 1] = timers [timercnt];	1306	timers [((W)w)->active - 1] = timers [timercnt];
1039	downheap ((WT *)timers, timercnt, w->active - 1);	1307	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1040	}	1308	}
1041		1309
1042	w->at = w->repeat;	1310	((WT)w)->at = w->repeat;
1043		1311
1044	ev_stop (EV_A_ (W)w);	1312	ev_stop (EV_A_ (W)w);
1045	}	1313	}
1046		1314
1047	void	1315	void
…		…
1049	{	1317	{
1050	if (ev_is_active (w))	1318	if (ev_is_active (w))
1051	{	1319	{
1052	if (w->repeat)	1320	if (w->repeat)
1053	{	1321	{
1054	w->at = mn_now + w->repeat;	1322	((WT)w)->at = mn_now + w->repeat;
1055	downheap ((WT *)timers, timercnt, w->active - 1);	1323	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1056	}	1324	}
1057	else	1325	else
1058	ev_timer_stop (EV_A_ w);	1326	ev_timer_stop (EV_A_ w);
1059	}	1327	}
1060	else if (w->repeat)	1328	else if (w->repeat)
…		…
1065	ev_periodic_start (EV_P_ struct ev_periodic *w)	1333	ev_periodic_start (EV_P_ struct ev_periodic *w)
1066	{	1334	{
1067	if (ev_is_active (w))	1335	if (ev_is_active (w))
1068	return;	1336	return;
1069		1337
		1338	if (w->reschedule_cb)
		1339	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1340	else if (w->interval)
		1341	{
1070	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1342	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1071
1072	/* this formula differs from the one in periodic_reify because we do not always round up */	1343	/* this formula differs from the one in periodic_reify because we do not always round up */
1073	if (w->interval)
1074	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1344	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1345	}
1075		1346
1076	ev_start (EV_A_ (W)w, ++periodiccnt);	1347	ev_start (EV_A_ (W)w, ++periodiccnt);
1077	array_needsize (periodics, periodicmax, periodiccnt, );	1348	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1078	periodics [periodiccnt - 1] = w;	1349	periodics [periodiccnt - 1] = w;
1079	upheap ((WT *)periodics, periodiccnt - 1);	1350	upheap ((WT *)periodics, periodiccnt - 1);
		1351
		1352	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1080	}	1353	}
1081		1354
1082	void	1355	void
1083	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1356	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1084	{	1357	{
1085	ev_clear_pending (EV_A_ (W)w);	1358	ev_clear_pending (EV_A_ (W)w);
1086	if (!ev_is_active (w))	1359	if (!ev_is_active (w))
1087	return;	1360	return;
1088		1361
		1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1363
1089	if (w->active < periodiccnt--)	1364	if (((W)w)->active < periodiccnt--)
1090	{	1365	{
1091	periodics [w->active - 1] = periodics [periodiccnt];	1366	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1092	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1367	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1093	}	1368	}
1094		1369
		1370	ev_stop (EV_A_ (W)w);
		1371	}
		1372
		1373	void
		1374	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1375	{
		1376	ev_periodic_stop (EV_A_ w);
		1377	ev_periodic_start (EV_A_ w);
		1378	}
		1379
		1380	void
		1381	ev_idle_start (EV_P_ struct ev_idle *w)
		1382	{
		1383	if (ev_is_active (w))
		1384	return;
		1385
		1386	ev_start (EV_A_ (W)w, ++idlecnt);
		1387	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1388	idles [idlecnt - 1] = w;
		1389	}
		1390
		1391	void
		1392	ev_idle_stop (EV_P_ struct ev_idle *w)
		1393	{
		1394	ev_clear_pending (EV_A_ (W)w);
		1395	if (ev_is_active (w))
		1396	return;
		1397
		1398	idles [((W)w)->active - 1] = idles [--idlecnt];
		1399	ev_stop (EV_A_ (W)w);
		1400	}
		1401
		1402	void
		1403	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1404	{
		1405	if (ev_is_active (w))
		1406	return;
		1407
		1408	ev_start (EV_A_ (W)w, ++preparecnt);
		1409	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1410	prepares [preparecnt - 1] = w;
		1411	}
		1412
		1413	void
		1414	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1415	{
		1416	ev_clear_pending (EV_A_ (W)w);
		1417	if (ev_is_active (w))
		1418	return;
		1419
		1420	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1421	ev_stop (EV_A_ (W)w);
		1422	}
		1423
		1424	void
		1425	ev_check_start (EV_P_ struct ev_check *w)
		1426	{
		1427	if (ev_is_active (w))
		1428	return;
		1429
		1430	ev_start (EV_A_ (W)w, ++checkcnt);
		1431	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1432	checks [checkcnt - 1] = w;
		1433	}
		1434
		1435	void
		1436	ev_check_stop (EV_P_ struct ev_check *w)
		1437	{
		1438	ev_clear_pending (EV_A_ (W)w);
		1439	if (ev_is_active (w))
		1440	return;
		1441
		1442	checks [((W)w)->active - 1] = checks [--checkcnt];
1095	ev_stop (EV_A_ (W)w);	1443	ev_stop (EV_A_ (W)w);
1096	}	1444	}
1097		1445
1098	#ifndef SA_RESTART	1446	#ifndef SA_RESTART
1099	# define SA_RESTART 0	1447	# define SA_RESTART 0
1100	#endif	1448	#endif
1101		1449
1102	void	1450	void
1103	ev_signal_start (EV_P_ struct ev_signal *w)	1451	ev_signal_start (EV_P_ struct ev_signal *w)
1104	{	1452	{
		1453	#if EV_MULTIPLICITY
		1454	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1455	#endif
1105	if (ev_is_active (w))	1456	if (ev_is_active (w))
1106	return;	1457	return;
1107		1458
1108	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1459	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1109		1460
1110	ev_start (EV_A_ (W)w, 1);	1461	ev_start (EV_A_ (W)w, 1);
1111	array_needsize (signals, signalmax, w->signum, signals_init);	1462	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1112	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1463	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1113		1464
1114	if (!w->next)	1465	if (!((WL)w)->next)
1115	{	1466	{
		1467	#if WIN32
		1468	signal (w->signum, sighandler);
		1469	#else
1116	struct sigaction sa;	1470	struct sigaction sa;
1117	sa.sa_handler = sighandler;	1471	sa.sa_handler = sighandler;
1118	sigfillset (&sa.sa_mask);	1472	sigfillset (&sa.sa_mask);
1119	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1473	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1120	sigaction (w->signum, &sa, 0);	1474	sigaction (w->signum, &sa, 0);
		1475	#endif
1121	}	1476	}
1122	}	1477	}
1123		1478
1124	void	1479	void
1125	ev_signal_stop (EV_P_ struct ev_signal *w)	1480	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1134	if (!signals [w->signum - 1].head)	1489	if (!signals [w->signum - 1].head)
1135	signal (w->signum, SIG_DFL);	1490	signal (w->signum, SIG_DFL);
1136	}	1491	}
1137		1492
1138	void	1493	void
1139	ev_idle_start (EV_P_ struct ev_idle *w)
1140	{
1141	if (ev_is_active (w))
1142	return;
1143
1144	ev_start (EV_A_ (W)w, ++idlecnt);
1145	array_needsize (idles, idlemax, idlecnt, );
1146	idles [idlecnt - 1] = w;
1147	}
1148
1149	void
1150	ev_idle_stop (EV_P_ struct ev_idle *w)
1151	{
1152	ev_clear_pending (EV_A_ (W)w);
1153	if (ev_is_active (w))
1154	return;
1155
1156	idles [w->active - 1] = idles [--idlecnt];
1157	ev_stop (EV_A_ (W)w);
1158	}
1159
1160	void
1161	ev_prepare_start (EV_P_ struct ev_prepare *w)
1162	{
1163	if (ev_is_active (w))
1164	return;
1165
1166	ev_start (EV_A_ (W)w, ++preparecnt);
1167	array_needsize (prepares, preparemax, preparecnt, );
1168	prepares [preparecnt - 1] = w;
1169	}
1170
1171	void
1172	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1173	{
1174	ev_clear_pending (EV_A_ (W)w);
1175	if (ev_is_active (w))
1176	return;
1177
1178	prepares [w->active - 1] = prepares [--preparecnt];
1179	ev_stop (EV_A_ (W)w);
1180	}
1181
1182	void
1183	ev_check_start (EV_P_ struct ev_check *w)
1184	{
1185	if (ev_is_active (w))
1186	return;
1187
1188	ev_start (EV_A_ (W)w, ++checkcnt);
1189	array_needsize (checks, checkmax, checkcnt, );
1190	checks [checkcnt - 1] = w;
1191	}
1192
1193	void
1194	ev_check_stop (EV_P_ struct ev_check *w)
1195	{
1196	ev_clear_pending (EV_A_ (W)w);
1197	if (ev_is_active (w))
1198	return;
1199
1200	checks [w->active - 1] = checks [--checkcnt];
1201	ev_stop (EV_A_ (W)w);
1202	}
1203
1204	void
1205	ev_child_start (EV_P_ struct ev_child *w)	1494	ev_child_start (EV_P_ struct ev_child *w)
1206	{	1495	{
		1496	#if EV_MULTIPLICITY
		1497	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1498	#endif
1207	if (ev_is_active (w))	1499	if (ev_is_active (w))
1208	return;	1500	return;
1209		1501
1210	ev_start (EV_A_ (W)w, 1);	1502	ev_start (EV_A_ (W)w, 1);
1211	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1503	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1238	void (cb)(int revents, void arg) = once->cb;	1530	void (cb)(int revents, void arg) = once->cb;
1239	void *arg = once->arg;	1531	void *arg = once->arg;
1240		1532
1241	ev_io_stop (EV_A_ &once->io);	1533	ev_io_stop (EV_A_ &once->io);
1242	ev_timer_stop (EV_A_ &once->to);	1534	ev_timer_stop (EV_A_ &once->to);
1243	free (once);	1535	ev_free (once);
1244		1536
1245	cb (revents, arg);	1537	cb (revents, arg);
1246	}	1538	}
1247		1539
1248	static void	1540	static void
…		…
1258	}	1550	}
1259		1551
1260	void	1552	void
1261	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1553	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1262	{	1554	{
1263	struct ev_once *once = malloc (sizeof (struct ev_once));	1555	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1264		1556
1265	if (!once)	1557	if (!once)
1266	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1558	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1267	else	1559	else
1268	{	1560	{
…		…
1283	ev_timer_start (EV_A_ &once->to);	1575	ev_timer_start (EV_A_ &once->to);
1284	}	1576	}
1285	}	1577	}
1286	}	1578	}
1287		1579
1288	/*****************************************************************************/
1289
1290	#if 0
1291
1292	struct ev_io wio;
1293
1294	static void
1295	sin_cb (struct ev_io *w, int revents)
1296	{
1297	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1298	}
1299
1300	static void
1301	ocb (struct ev_timer *w, int revents)
1302	{
1303	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1304	ev_timer_stop (w);
1305	ev_timer_start (w);
1306	}
1307
1308	static void
1309	scb (struct ev_signal *w, int revents)
1310	{
1311	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1312	ev_io_stop (&wio);
1313	ev_io_start (&wio);
1314	}
1315
1316	static void
1317	gcb (struct ev_signal *w, int revents)
1318	{
1319	fprintf (stderr, "generic %x\n", revents);
1320
1321	}
1322
1323	int main (void)
1324	{
1325	ev_init (0);
1326
1327	ev_io_init (&wio, sin_cb, 0, EV_READ);
1328	ev_io_start (&wio);
1329
1330	struct ev_timer t[10000];
1331
1332	#if 0
1333	int i;
1334	for (i = 0; i < 10000; ++i)
1335	{
1336	struct ev_timer *w = t + i;
1337	ev_watcher_init (w, ocb, i);
1338	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1339	ev_timer_start (w);
1340	if (drand48 () < 0.5)
1341	ev_timer_stop (w);
1342	}
1343	#endif
1344
1345	struct ev_timer t1;
1346	ev_timer_init (&t1, ocb, 5, 10);
1347	ev_timer_start (&t1);
1348
1349	struct ev_signal sig;
1350	ev_signal_init (&sig, scb, SIGQUIT);
1351	ev_signal_start (&sig);
1352
1353	struct ev_check cw;
1354	ev_check_init (&cw, gcb);
1355	ev_check_start (&cw);
1356
1357	struct ev_idle iw;
1358	ev_idle_init (&iw, gcb);
1359	ev_idle_start (&iw);
1360
1361	ev_loop (0);
1362
1363	return 0;
1364	}
1365
1366	#endif
1367
1368
1369
1370

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Comparing libev/ev.c (file contents): Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs. Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC