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

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.83 by root, Fri Nov 9 21:48:23 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	#if EV_USE_CONFIG_H	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
…		…
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
…		…
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	126	#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) */	127	#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 */	128	#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 */	129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
98	#include "ev.h"	134	# include "ev.h"
		135	#endif
99		136
100	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	138	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	139	# define inline inline
103	#else	140	#else
…		…
113		150
114	typedef struct ev_watcher *W;	151	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	152	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	153	typedef struct ev_watcher_time *WT;
117		154
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	ev_tstamp ev_now;
120	int ev_method;
121		156
122	static int have_monotonic; /* runtime */	157	#include "ev_win32.c"
123
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		158
128	/*****************************************************************************/	159	/*****************************************************************************/
129		160
130	ev_tstamp	161	static void (syserr_cb)(const char msg);
		162
		163	void ev_set_syserr_cb (void (cb)(const char msg))
		164	{
		165	syserr_cb = cb;
		166	}
		167
		168	static void
		169	syserr (const char *msg)
		170	{
		171	if (!msg)
		172	msg = "(libev) system error";
		173
		174	if (syserr_cb)
		175	syserr_cb (msg);
		176	else
		177	{
		178	perror (msg);
		179	abort ();
		180	}
		181	}
		182
		183	static void (alloc)(void *ptr, long size);
		184
		185	void ev_set_allocator (void (cb)(void *ptr, long size))
		186	{
		187	alloc = cb;
		188	}
		189
		190	static void *
		191	ev_realloc (void *ptr, long size)
		192	{
		193	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		194
		195	if (!ptr && size)
		196	{
		197	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		198	abort ();
		199	}
		200
		201	return ptr;
		202	}
		203
		204	#define ev_malloc(size) ev_realloc (0, (size))
		205	#define ev_free(ptr) ev_realloc ((ptr), 0)
		206
		207	/*****************************************************************************/
		208
		209	typedef struct
		210	{
		211	WL head;
		212	unsigned char events;
		213	unsigned char reify;
		214	} ANFD;
		215
		216	typedef struct
		217	{
		218	W w;
		219	int events;
		220	} ANPENDING;
		221
		222	#if EV_MULTIPLICITY
		223
		224	struct ev_loop
		225	{
		226	#define VAR(name,decl) decl;
		227	#include "ev_vars.h"
		228	#undef VAR
		229	};
		230	#include "ev_wrap.h"
		231
		232	struct ev_loop default_loop_struct;
		233	static struct ev_loop *default_loop;
		234
		235	#else
		236
		237	#define VAR(name,decl) static decl;
		238	#include "ev_vars.h"
		239	#undef VAR
		240
		241	static int default_loop;
		242
		243	#endif
		244
		245	/*****************************************************************************/
		246
		247	inline ev_tstamp
131	ev_time (void)	248	ev_time (void)
132	{	249	{
133	#if EV_USE_REALTIME	250	#if EV_USE_REALTIME
134	struct timespec ts;	251	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	252	clock_gettime (CLOCK_REALTIME, &ts);
…		…
139	gettimeofday (&tv, 0);	256	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	257	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	258	#endif
142	}	259	}
143		260
144	static ev_tstamp	261	inline ev_tstamp
145	get_clock (void)	262	get_clock (void)
146	{	263	{
147	#if EV_USE_MONOTONIC	264	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	265	if (expect_true (have_monotonic))
149	{	266	{
…		…
154	#endif	271	#endif
155		272
156	return ev_time ();	273	return ev_time ();
157	}	274	}
158		275
		276	ev_tstamp
		277	ev_now (EV_P)
		278	{
		279	return rt_now;
		280	}
		281
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	282	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		283
161	#define array_needsize(base,cur,cnt,init) \	284	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	285	if (expect_false ((cnt) > cur)) \
163	{ \	286	{ \
164	int newcnt = cur; \	287	int newcnt = cur; \
165	do \	288	do \
166	{ \	289	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	290	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	291	} \
169	while ((cnt) > newcnt); \	292	while ((cnt) > newcnt); \
170	\	293	\
171	base = realloc (base, sizeof (base) (newcnt)); \	294	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	295	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	296	cur = newcnt; \
174	}	297	}
		298
		299	#define array_slim(type,stem) \
		300	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		301	{ \
		302	stem ## max = array_roundsize (stem ## cnt >> 1); \
		303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		305	}
		306
		307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		309	#define array_free_microshit(stem) \
		310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		311
		312	#define array_free(stem, idx) \
		313	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		314
176	/*****************************************************************************/	315	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		316
188	static void	317	static void
189	anfds_init (ANFD *base, int count)	318	anfds_init (ANFD *base, int count)
190	{	319	{
191	while (count--)	320	while (count--)
…		…
196		325
197	++base;	326	++base;
198	}	327	}
199	}	328	}
200		329
201	typedef struct	330	void
		331	ev_feed_event (EV_P_ void *w, int revents)
202	{	332	{
203	W w;	333	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		334
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	335	if (w_->pending)
214	{	336	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	338	return;
217	}	339	}
218		340
219	w->pending = ++pendingcnt [ABSPRI (w)];	341	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	342	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	345	}
224		346
225	static void	347	static void
226	queue_events (W *events, int eventcnt, int type)	348	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	349	{
228	int i;	350	int i;
229		351
230	for (i = 0; i < eventcnt; ++i)	352	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	353	ev_feed_event (EV_A_ events [i], type);
232	}	354	}
233		355
234	static void	356	inline void
235	fd_event (int fd, int events)	357	fd_event (EV_P_ int fd, int revents)
236	{	358	{
237	ANFD *anfd = anfds + fd;	359	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	360	struct ev_io *w;
239		361
240	for (w = anfd->head; w; w = w->next)	362	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	363	{
242	int ev = w->events & events;	364	int ev = w->events & revents;
243		365
244	if (ev)	366	if (ev)
245	event ((W)w, ev);	367	ev_feed_event (EV_A_ (W)w, ev);
246	}	368	}
		369	}
		370
		371	void
		372	ev_feed_fd_event (EV_P_ int fd, int revents)
		373	{
		374	fd_event (EV_A_ fd, revents);
247	}	375	}
248		376
249	/*****************************************************************************/	377	/*****************************************************************************/
250		378
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	379	static void
255	fd_reify (void)	380	fd_reify (EV_P)
256	{	381	{
257	int i;	382	int i;
258		383
259	for (i = 0; i < fdchangecnt; ++i)	384	for (i = 0; i < fdchangecnt; ++i)
260	{	385	{
…		…
262	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	388	struct ev_io *w;
264		389
265	int events = 0;	390	int events = 0;
266		391
267	for (w = anfd->head; w; w = w->next)	392	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	393	events \|= w->events;
269		394
270	anfd->reify = 0;	395	anfd->reify = 0;
271		396
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	397	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	398	anfd->events = events;
276	}
277	}	399	}
278		400
279	fdchangecnt = 0;	401	fdchangecnt = 0;
280	}	402	}
281		403
282	static void	404	static void
283	fd_change (int fd)	405	fd_change (EV_P_ int fd)
284	{	406	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	407	if (anfds [fd].reify)
286	return;	408	return;
287		409
288	anfds [fd].reify = 1;	410	anfds [fd].reify = 1;
289		411
290	++fdchangecnt;	412	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	414	fdchanges [fdchangecnt - 1] = fd;
293	}	415	}
294		416
295	static void	417	static void
296	fd_kill (int fd)	418	fd_kill (EV_P_ int fd)
297	{	419	{
298	struct ev_io *w;	420	struct ev_io *w;
299		421
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	422	while ((w = (struct ev_io *)anfds [fd].head))
302	{	423	{
303	ev_io_stop (w);	424	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	425	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	426	}
		427	}
		428
		429	static int
		430	fd_valid (int fd)
		431	{
		432	#ifdef WIN32
		433	return !!win32_get_osfhandle (fd);
		434	#else
		435	return fcntl (fd, F_GETFD) != -1;
		436	#endif
306	}	437	}
307		438
308	/* called on EBADF to verify fds */	439	/* called on EBADF to verify fds */
309	static void	440	static void
310	fd_ebadf (void)	441	fd_ebadf (EV_P)
311	{	442	{
312	int fd;	443	int fd;
313		444
314	for (fd = 0; fd < anfdmax; ++fd)	445	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	446	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	447	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	448	fd_kill (EV_A_ fd);
318	}	449	}
319		450
320	/* called on ENOMEM in select/poll to kill some fds and retry */	451	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	452	static void
322	fd_enomem (void)	453	fd_enomem (EV_P)
323	{	454	{
324	int fd = anfdmax;	455	int fd;
325		456
326	while (fd--)	457	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	458	if (anfds [fd].events)
328	{	459	{
329	close (fd);
330	fd_kill (fd);	460	fd_kill (EV_A_ fd);
331	return;	461	return;
332	}	462	}
333	}	463	}
334		464
		465	/* usually called after fork if method needs to re-arm all fds from scratch */
		466	static void
		467	fd_rearm_all (EV_P)
		468	{
		469	int fd;
		470
		471	/* this should be highly optimised to not do anything but set a flag */
		472	for (fd = 0; fd < anfdmax; ++fd)
		473	if (anfds [fd].events)
		474	{
		475	anfds [fd].events = 0;
		476	fd_change (EV_A_ fd);
		477	}
		478	}
		479
335	/*****************************************************************************/	480	/*****************************************************************************/
336		481
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	482	static void
344	upheap (WT *timers, int k)	483	upheap (WT *heap, int k)
345	{	484	{
346	WT w = timers [k];	485	WT w = heap [k];
347		486
348	while (k && timers [k >> 1]->at > w->at)	487	while (k && heap [k >> 1]->at > w->at)
349	{	488	{
350	timers [k] = timers [k >> 1];	489	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	490	((W)heap [k])->active = k + 1;
352	k >>= 1;	491	k >>= 1;
353	}	492	}
354		493
355	timers [k] = w;	494	heap [k] = w;
356	timers [k]->active = k + 1;	495	((W)heap [k])->active = k + 1;
357		496
358	}	497	}
359		498
360	static void	499	static void
361	downheap (WT *timers, int N, int k)	500	downheap (WT *heap, int N, int k)
362	{	501	{
363	WT w = timers [k];	502	WT w = heap [k];
364		503
365	while (k < (N >> 1))	504	while (k < (N >> 1))
366	{	505	{
367	int j = k << 1;	506	int j = k << 1;
368		507
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	508	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	509	++j;
371		510
372	if (w->at <= timers [j]->at)	511	if (w->at <= heap [j]->at)
373	break;	512	break;
374		513
375	timers [k] = timers [j];	514	heap [k] = heap [j];
376	timers [k]->active = k + 1;	515	((W)heap [k])->active = k + 1;
377	k = j;	516	k = j;
378	}	517	}
379		518
380	timers [k] = w;	519	heap [k] = w;
381	timers [k]->active = k + 1;	520	((W)heap [k])->active = k + 1;
382	}	521	}
383		522
384	/*****************************************************************************/	523	/*****************************************************************************/
385		524
386	typedef struct	525	typedef struct
387	{	526	{
388	struct ev_signal *head;	527	WL head;
389	sig_atomic_t volatile gotsig;	528	sig_atomic_t volatile gotsig;
390	} ANSIG;	529	} ANSIG;
391		530
392	static ANSIG *signals;	531	static ANSIG *signals;
393	static int signalmax;	532	static int signalmax;
…		…
409	}	548	}
410		549
411	static void	550	static void
412	sighandler (int signum)	551	sighandler (int signum)
413	{	552	{
		553	#if WIN32
		554	signal (signum, sighandler);
		555	#endif
		556
414	signals [signum - 1].gotsig = 1;	557	signals [signum - 1].gotsig = 1;
415		558
416	if (!gotsig)	559	if (!gotsig)
417	{	560	{
		561	int old_errno = errno;
418	gotsig = 1;	562	gotsig = 1;
		563	#ifdef WIN32
		564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		565	#else
419	write (sigpipe [1], &signum, 1);	566	write (sigpipe [1], &signum, 1);
		567	#endif
		568	errno = old_errno;
420	}	569	}
421	}	570	}
422		571
		572	void
		573	ev_feed_signal_event (EV_P_ int signum)
		574	{
		575	WL w;
		576
		577	#if EV_MULTIPLICITY
		578	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		579	#endif
		580
		581	--signum;
		582
		583	if (signum < 0 \|\| signum >= signalmax)
		584	return;
		585
		586	signals [signum].gotsig = 0;
		587
		588	for (w = signals [signum].head; w; w = w->next)
		589	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		590	}
		591
423	static void	592	static void
424	sigcb (struct ev_io *iow, int revents)	593	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	594	{
426	struct ev_signal *w;
427	int signum;	595	int signum;
428		596
		597	#ifdef WIN32
		598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		599	#else
429	read (sigpipe [0], &revents, 1);	600	read (sigpipe [0], &revents, 1);
		601	#endif
430	gotsig = 0;	602	gotsig = 0;
431		603
432	for (signum = signalmax; signum--; )	604	for (signum = signalmax; signum--; )
433	if (signals [signum].gotsig)	605	if (signals [signum].gotsig)
434	{	606	ev_feed_signal_event (EV_A_ signum + 1);
435	signals [signum].gotsig = 0;
436
437	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);
439	}
440	}	607	}
441		608
442	static void	609	static void
443	siginit (void)	610	siginit (EV_P)
444	{	611	{
445	#ifndef WIN32	612	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		615
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	619	#endif
453		620
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	621	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	622	ev_io_start (EV_A_ &sigev);
		623	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	624	}
457		625
458	/*****************************************************************************/	626	/*****************************************************************************/
459		627
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	628	static struct ev_child *childs [PID_HASHSIZE];
		629
		630	#ifndef WIN32
		631
472	static struct ev_signal childev;	632	static struct ev_signal childev;
473
474	#ifndef WIN32
475		633
476	#ifndef WCONTINUED	634	#ifndef WCONTINUED
477	# define WCONTINUED 0	635	# define WCONTINUED 0
478	#endif	636	#endif
479		637
480	static void	638	static void
481	childcb (struct ev_signal *sw, int revents)	639	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	640	{
483	struct ev_child *w;	641	struct ev_child *w;
		642
		643	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		644	if (w->pid == pid \|\| !w->pid)
		645	{
		646	ev_priority (w) = ev_priority (sw); /* need to do it now */
		647	w->rpid = pid;
		648	w->rstatus = status;
		649	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		650	}
		651	}
		652
		653	static void
		654	childcb (EV_P_ struct ev_signal *sw, int revents)
		655	{
484	int pid, status;	656	int pid, status;
485		657
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	658	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	659	{
488	if (w->pid == pid \|\| !w->pid)	660	/* make sure we are called again until all childs have been reaped */
489	{	661	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
490	w->rpid = pid;	662
491	w->rstatus = status;	663	child_reap (EV_A_ sw, pid, pid, status);
492	event ((W)w, EV_CHILD);	664	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
493	}	665	}
494	}	666	}
495		667
496	#endif	668	#endif
497		669
498	/*****************************************************************************/	670	/*****************************************************************************/
…		…
520	ev_version_minor (void)	692	ev_version_minor (void)
521	{	693	{
522	return EV_VERSION_MINOR;	694	return EV_VERSION_MINOR;
523	}	695	}
524		696
525	/* return true if we are running with elevated privileges and ignore env variables */	697	/* return true if we are running with elevated privileges and should ignore env variables */
526	static int	698	static int
527	enable_secure ()	699	enable_secure (void)
528	{	700	{
		701	#ifdef WIN32
		702	return 0;
		703	#else
529	return getuid () != geteuid ()	704	return getuid () != geteuid ()
530	\|\| getgid () != getegid ();	705	\|\| getgid () != getegid ();
		706	#endif
531	}	707	}
532		708
533	int ev_init (int methods)	709	int
		710	ev_method (EV_P)
534	{	711	{
		712	return method;
		713	}
		714
		715	static void
		716	loop_init (EV_P_ int methods)
		717	{
535	if (!ev_method)	718	if (!method)
536	{	719	{
537	#if EV_USE_MONOTONIC	720	#if EV_USE_MONOTONIC
538	{	721	{
539	struct timespec ts;	722	struct timespec ts;
540	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
541	have_monotonic = 1;	724	have_monotonic = 1;
542	}	725	}
543	#endif	726	#endif
544		727
545	ev_now = ev_time ();	728	rt_now = ev_time ();
546	now = get_clock ();	729	mn_now = get_clock ();
547	now_floor = now;	730	now_floor = mn_now;
548	diff = ev_now - now;	731	rtmn_diff = rt_now - mn_now;
549
550	if (pipe (sigpipe))
551	return 0;
552		732
553	if (methods == EVMETHOD_AUTO)	733	if (methods == EVMETHOD_AUTO)
554	if (!enable_secure () && getenv ("LIBEV_METHODS"))	734	if (!enable_secure () && getenv ("LIBEV_METHODS"))
555	methods = atoi (getenv ("LIBEV_METHODS"));	735	methods = atoi (getenv ("LIBEV_METHODS"));
556	else	736	else
557	methods = EVMETHOD_ANY;	737	methods = EVMETHOD_ANY;
558		738
559	ev_method = 0;	739	method = 0;
		740	#if EV_USE_WIN32
		741	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		742	#endif
560	#if EV_USE_KQUEUE	743	#if EV_USE_KQUEUE
561	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
562	#endif	745	#endif
563	#if EV_USE_EPOLL	746	#if EV_USE_EPOLL
564	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
565	#endif	748	#endif
566	#if EV_USE_POLL	749	#if EV_USE_POLL
567	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
568	#endif	751	#endif
569	#if EV_USE_SELECT	752	#if EV_USE_SELECT
570	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
571	#endif	754	#endif
572		755
		756	ev_init (&sigev, sigcb);
		757	ev_set_priority (&sigev, EV_MAXPRI);
		758	}
		759	}
		760
		761	void
		762	loop_destroy (EV_P)
		763	{
		764	int i;
		765
		766	#if EV_USE_WIN32
		767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		768	#endif
		769	#if EV_USE_KQUEUE
		770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		771	#endif
		772	#if EV_USE_EPOLL
		773	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		774	#endif
		775	#if EV_USE_POLL
		776	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		777	#endif
		778	#if EV_USE_SELECT
		779	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		780	#endif
		781
		782	for (i = NUMPRI; i--; )
		783	array_free (pending, [i]);
		784
		785	/* have to use the microsoft-never-gets-it-right macro */
		786	array_free_microshit (fdchange);
		787	array_free_microshit (timer);
		788	array_free_microshit (periodic);
		789	array_free_microshit (idle);
		790	array_free_microshit (prepare);
		791	array_free_microshit (check);
		792
		793	method = 0;
		794	}
		795
		796	static void
		797	loop_fork (EV_P)
		798	{
		799	#if EV_USE_EPOLL
		800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		801	#endif
		802	#if EV_USE_KQUEUE
		803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		804	#endif
		805
		806	if (ev_is_active (&sigev))
		807	{
		808	/* default loop */
		809
		810	ev_ref (EV_A);
		811	ev_io_stop (EV_A_ &sigev);
		812	close (sigpipe [0]);
		813	close (sigpipe [1]);
		814
		815	while (pipe (sigpipe))
		816	syserr ("(libev) error creating pipe");
		817
		818	siginit (EV_A);
		819	}
		820
		821	postfork = 0;
		822	}
		823
		824	#if EV_MULTIPLICITY
		825	struct ev_loop *
		826	ev_loop_new (int methods)
		827	{
		828	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		829
		830	memset (loop, 0, sizeof (struct ev_loop));
		831
		832	loop_init (EV_A_ methods);
		833
		834	if (ev_method (EV_A))
		835	return loop;
		836
		837	return 0;
		838	}
		839
		840	void
		841	ev_loop_destroy (EV_P)
		842	{
		843	loop_destroy (EV_A);
		844	ev_free (loop);
		845	}
		846
		847	void
		848	ev_loop_fork (EV_P)
		849	{
		850	postfork = 1;
		851	}
		852
		853	#endif
		854
		855	#if EV_MULTIPLICITY
		856	struct ev_loop *
		857	#else
		858	int
		859	#endif
		860	ev_default_loop (int methods)
		861	{
		862	if (sigpipe [0] == sigpipe [1])
		863	if (pipe (sigpipe))
		864	return 0;
		865
		866	if (!default_loop)
		867	{
		868	#if EV_MULTIPLICITY
		869	struct ev_loop *loop = default_loop = &default_loop_struct;
		870	#else
		871	default_loop = 1;
		872	#endif
		873
		874	loop_init (EV_A_ methods);
		875
573	if (ev_method)	876	if (ev_method (EV_A))
574	{	877	{
575	ev_watcher_init (&sigev, sigcb);
576	siginit ();	878	siginit (EV_A);
577		879
578	#ifndef WIN32	880	#ifndef WIN32
579	ev_signal_init (&childev, childcb, SIGCHLD);	881	ev_signal_init (&childev, childcb, SIGCHLD);
		882	ev_set_priority (&childev, EV_MAXPRI);
580	ev_signal_start (&childev);	883	ev_signal_start (EV_A_ &childev);
		884	ev_unref (EV_A); /* child watcher should not keep loop alive */
581	#endif	885	#endif
582	}	886	}
		887	else
		888	default_loop = 0;
583	}	889	}
584		890
585	return ev_method;	891	return default_loop;
		892	}
		893
		894	void
		895	ev_default_destroy (void)
		896	{
		897	#if EV_MULTIPLICITY
		898	struct ev_loop *loop = default_loop;
		899	#endif
		900
		901	#ifndef WIN32
		902	ev_ref (EV_A); /* child watcher */
		903	ev_signal_stop (EV_A_ &childev);
		904	#endif
		905
		906	ev_ref (EV_A); /* signal watcher */
		907	ev_io_stop (EV_A_ &sigev);
		908
		909	close (sigpipe [0]); sigpipe [0] = 0;
		910	close (sigpipe [1]); sigpipe [1] = 0;
		911
		912	loop_destroy (EV_A);
		913	}
		914
		915	void
		916	ev_default_fork (void)
		917	{
		918	#if EV_MULTIPLICITY
		919	struct ev_loop *loop = default_loop;
		920	#endif
		921
		922	if (method)
		923	postfork = 1;
586	}	924	}
587		925
588	/*****************************************************************************/	926	/*****************************************************************************/
589		927
590	void
591	ev_fork_prepare (void)
592	{
593	/* nop */
594	}
595
596	void
597	ev_fork_parent (void)
598	{
599	/* nop */
600	}
601
602	void
603	ev_fork_child (void)
604	{
605	#if EV_USE_EPOLL
606	if (ev_method == EVMETHOD_EPOLL)
607	epoll_postfork_child ();
608	#endif
609
610	ev_io_stop (&sigev);
611	close (sigpipe [0]);
612	close (sigpipe [1]);
613	pipe (sigpipe);
614	siginit ();
615	}
616
617	/*****************************************************************************/
618
619	static void	928	static int
		929	any_pending (EV_P)
		930	{
		931	int pri;
		932
		933	for (pri = NUMPRI; pri--; )
		934	if (pendingcnt [pri])
		935	return 1;
		936
		937	return 0;
		938	}
		939
		940	static void
620	call_pending (void)	941	call_pending (EV_P)
621	{	942	{
622	int pri;	943	int pri;
623		944
624	for (pri = NUMPRI; pri--; )	945	for (pri = NUMPRI; pri--; )
625	while (pendingcnt [pri])	946	while (pendingcnt [pri])
…		…
627	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
628		949
629	if (p->w)	950	if (p->w)
630	{	951	{
631	p->w->pending = 0;	952	p->w->pending = 0;
632	p->w->cb (p->w, p->events);	953	EV_CB_INVOKE (p->w, p->events);
633	}	954	}
634	}	955	}
635	}	956	}
636		957
637	static void	958	static void
638	timers_reify (void)	959	timers_reify (EV_P)
639	{	960	{
640	while (timercnt && timers [0]->at <= now)	961	while (timercnt && ((WT)timers [0])->at <= mn_now)
641	{	962	{
642	struct ev_timer *w = timers [0];	963	struct ev_timer *w = timers [0];
		964
		965	assert (("inactive timer on timer heap detected", ev_is_active (w)));
643		966
644	/* first reschedule or stop timer */	967	/* first reschedule or stop timer */
645	if (w->repeat)	968	if (w->repeat)
646	{	969	{
647	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	970	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
648	w->at = now + w->repeat;	971	((WT)w)->at = mn_now + w->repeat;
649	downheap ((WT *)timers, timercnt, 0);	972	downheap ((WT *)timers, timercnt, 0);
650	}	973	}
651	else	974	else
652	ev_timer_stop (w); /* nonrepeating: stop timer */	975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
653		976
654	event ((W)w, EV_TIMEOUT);	977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
655	}	978	}
656	}	979	}
657		980
658	static void	981	static void
659	periodics_reify (void)	982	periodics_reify (EV_P)
660	{	983	{
661	while (periodiccnt && periodics [0]->at <= ev_now)	984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
662	{	985	{
663	struct ev_periodic *w = periodics [0];	986	struct ev_periodic *w = periodics [0];
664		987
		988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		989
665	/* first reschedule or stop timer */	990	/* first reschedule or stop timer */
666	if (w->interval)	991	if (w->reschedule_cb)
667	{	992	{
		993	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		994
		995	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		996	downheap ((WT *)periodics, periodiccnt, 0);
		997	}
		998	else if (w->interval)
		999	{
668	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1000	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
669	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1001	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
670	downheap ((WT *)periodics, periodiccnt, 0);	1002	downheap ((WT *)periodics, periodiccnt, 0);
671	}	1003	}
672	else	1004	else
673	ev_periodic_stop (w); /* nonrepeating: stop timer */	1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
674		1006
675	event ((W)w, EV_PERIODIC);	1007	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
676	}	1008	}
677	}	1009	}
678		1010
679	static void	1011	static void
680	periodics_reschedule (ev_tstamp diff)	1012	periodics_reschedule (EV_P)
681	{	1013	{
682	int i;	1014	int i;
683		1015
684	/* adjust periodics after time jump */	1016	/* adjust periodics after time jump */
685	for (i = 0; i < periodiccnt; ++i)	1017	for (i = 0; i < periodiccnt; ++i)
686	{	1018	{
687	struct ev_periodic *w = periodics [i];	1019	struct ev_periodic *w = periodics [i];
688		1020
		1021	if (w->reschedule_cb)
		1022	((WT)w)->at = w->reschedule_cb (w, rt_now);
689	if (w->interval)	1023	else if (w->interval)
690	{
691	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
692
693	if (fabs (diff) >= 1e-4)
694	{
695	ev_periodic_stop (w);
696	ev_periodic_start (w);
697
698	i = 0; /* restart loop, inefficient, but time jumps should be rare */
699	}
700	}
701	}	1025	}
702	}
703		1026
704	static int	1027	/* now rebuild the heap */
		1028	for (i = periodiccnt >> 1; i--; )
		1029	downheap ((WT *)periodics, periodiccnt, i);
		1030	}
		1031
		1032	inline int
705	time_update_monotonic (void)	1033	time_update_monotonic (EV_P)
706	{	1034	{
707	now = get_clock ();	1035	mn_now = get_clock ();
708		1036
709	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
710	{	1038	{
711	ev_now = now + diff;	1039	rt_now = rtmn_diff + mn_now;
712	return 0;	1040	return 0;
713	}	1041	}
714	else	1042	else
715	{	1043	{
716	now_floor = now;	1044	now_floor = mn_now;
717	ev_now = ev_time ();	1045	rt_now = ev_time ();
718	return 1;	1046	return 1;
719	}	1047	}
720	}	1048	}
721		1049
722	static void	1050	static void
723	time_update (void)	1051	time_update (EV_P)
724	{	1052	{
725	int i;	1053	int i;
726		1054
727	#if EV_USE_MONOTONIC	1055	#if EV_USE_MONOTONIC
728	if (expect_true (have_monotonic))	1056	if (expect_true (have_monotonic))
729	{	1057	{
730	if (time_update_monotonic ())	1058	if (time_update_monotonic (EV_A))
731	{	1059	{
732	ev_tstamp odiff = diff;	1060	ev_tstamp odiff = rtmn_diff;
733		1061
734	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1062	for (i = 4; --i; ) /* loop a few times, before making important decisions */
735	{	1063	{
736	diff = ev_now - now;	1064	rtmn_diff = rt_now - mn_now;
737		1065
738	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
739	return; /* all is well */	1067	return; /* all is well */
740		1068
741	ev_now = ev_time ();	1069	rt_now = ev_time ();
742	now = get_clock ();	1070	mn_now = get_clock ();
743	now_floor = now;	1071	now_floor = mn_now;
744	}	1072	}
745		1073
746	periodics_reschedule (diff - odiff);	1074	periodics_reschedule (EV_A);
747	/* no timer adjustment, as the monotonic clock doesn't jump */	1075	/* no timer adjustment, as the monotonic clock doesn't jump */
		1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
748	}	1077	}
749	}	1078	}
750	else	1079	else
751	#endif	1080	#endif
752	{	1081	{
753	ev_now = ev_time ();	1082	rt_now = ev_time ();
754		1083
755	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1084	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
756	{	1085	{
757	periodics_reschedule (ev_now - now);	1086	periodics_reschedule (EV_A);
758		1087
759	/* adjust timers. this is easy, as the offset is the same for all */	1088	/* adjust timers. this is easy, as the offset is the same for all */
760	for (i = 0; i < timercnt; ++i)	1089	for (i = 0; i < timercnt; ++i)
761	timers [i]->at += diff;	1090	((WT)timers [i])->at += rt_now - mn_now;
762	}	1091	}
763		1092
764	now = ev_now;	1093	mn_now = rt_now;
765	}	1094	}
766	}	1095	}
767		1096
768	int ev_loop_done;	1097	void
		1098	ev_ref (EV_P)
		1099	{
		1100	++activecnt;
		1101	}
769		1102
		1103	void
		1104	ev_unref (EV_P)
		1105	{
		1106	--activecnt;
		1107	}
		1108
		1109	static int loop_done;
		1110
		1111	void
770	void ev_loop (int flags)	1112	ev_loop (EV_P_ int flags)
771	{	1113	{
772	double block;	1114	double block;
773	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
774		1116
775	do	1117	do
776	{	1118	{
777	/* queue check watchers (and execute them) */	1119	/* queue check watchers (and execute them) */
778	if (expect_false (preparecnt))	1120	if (expect_false (preparecnt))
779	{	1121	{
780	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
781	call_pending ();	1123	call_pending (EV_A);
782	}	1124	}
783		1125
		1126	/* we might have forked, so reify kernel state if necessary */
		1127	if (expect_false (postfork))
		1128	loop_fork (EV_A);
		1129
784	/* update fd-related kernel structures */	1130	/* update fd-related kernel structures */
785	fd_reify ();	1131	fd_reify (EV_A);
786		1132
787	/* calculate blocking time */	1133	/* calculate blocking time */
788		1134
789	/* we only need this for !monotonic clockor timers, but as we basically	1135	/* we only need this for !monotonic clock or timers, but as we basically
790	always have timers, we just calculate it always */	1136	always have timers, we just calculate it always */
791	#if EV_USE_MONOTONIC	1137	#if EV_USE_MONOTONIC
792	if (expect_true (have_monotonic))	1138	if (expect_true (have_monotonic))
793	time_update_monotonic ();	1139	time_update_monotonic (EV_A);
794	else	1140	else
795	#endif	1141	#endif
796	{	1142	{
797	ev_now = ev_time ();	1143	rt_now = ev_time ();
798	now = ev_now;	1144	mn_now = rt_now;
799	}	1145	}
800		1146
801	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
802	block = 0.;	1148	block = 0.;
803	else	1149	else
804	{	1150	{
805	block = MAX_BLOCKTIME;	1151	block = MAX_BLOCKTIME;
806		1152
807	if (timercnt)	1153	if (timercnt)
808	{	1154	{
809	ev_tstamp to = timers [0]->at - now + method_fudge;	1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
810	if (block > to) block = to;	1156	if (block > to) block = to;
811	}	1157	}
812		1158
813	if (periodiccnt)	1159	if (periodiccnt)
814	{	1160	{
815	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
816	if (block > to) block = to;	1162	if (block > to) block = to;
817	}	1163	}
818		1164
819	if (block < 0.) block = 0.;	1165	if (block < 0.) block = 0.;
820	}	1166	}
821		1167
822	method_poll (block);	1168	method_poll (EV_A_ block);
823		1169
824	/* update ev_now, do magic */	1170	/* update rt_now, do magic */
825	time_update ();	1171	time_update (EV_A);
826		1172
827	/* queue pending timers and reschedule them */	1173	/* queue pending timers and reschedule them */
828	timers_reify (); /* relative timers called last */	1174	timers_reify (EV_A); /* relative timers called last */
829	periodics_reify (); /* absolute timers called first */	1175	periodics_reify (EV_A); /* absolute timers called first */
830		1176
831	/* queue idle watchers unless io or timers are pending */	1177	/* queue idle watchers unless io or timers are pending */
832	if (!pendingcnt)	1178	if (idlecnt && !any_pending (EV_A))
833	queue_events ((W *)idles, idlecnt, EV_IDLE);	1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
834		1180
835	/* queue check watchers, to be executed first */	1181	/* queue check watchers, to be executed first */
836	if (checkcnt)	1182	if (checkcnt)
837	queue_events ((W *)checks, checkcnt, EV_CHECK);	1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
838		1184
839	call_pending ();	1185	call_pending (EV_A);
840	}	1186	}
841	while (!ev_loop_done);	1187	while (activecnt && !loop_done);
842		1188
843	if (ev_loop_done != 2)	1189	if (loop_done != 2)
844	ev_loop_done = 0;	1190	loop_done = 0;
		1191	}
		1192
		1193	void
		1194	ev_unloop (EV_P_ int how)
		1195	{
		1196	loop_done = how;
845	}	1197	}
846		1198
847	/*****************************************************************************/	1199	/*****************************************************************************/
848		1200
849	static void	1201	inline void
850	wlist_add (WL *head, WL elem)	1202	wlist_add (WL *head, WL elem)
851	{	1203	{
852	elem->next = *head;	1204	elem->next = *head;
853	*head = elem;	1205	*head = elem;
854	}	1206	}
855		1207
856	static void	1208	inline void
857	wlist_del (WL *head, WL elem)	1209	wlist_del (WL *head, WL elem)
858	{	1210	{
859	while (*head)	1211	while (*head)
860	{	1212	{
861	if (*head == elem)	1213	if (*head == elem)
…		…
866		1218
867	head = &(*head)->next;	1219	head = &(*head)->next;
868	}	1220	}
869	}	1221	}
870		1222
871	static void	1223	inline void
872	ev_clear_pending (W w)	1224	ev_clear_pending (EV_P_ W w)
873	{	1225	{
874	if (w->pending)	1226	if (w->pending)
875	{	1227	{
876	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1228	pendings [ABSPRI (w)][w->pending - 1].w = 0;
877	w->pending = 0;	1229	w->pending = 0;
878	}	1230	}
879	}	1231	}
880		1232
881	static void	1233	inline void
882	ev_start (W w, int active)	1234	ev_start (EV_P_ W w, int active)
883	{	1235	{
884	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1236	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
885	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1237	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
886		1238
887	w->active = active;	1239	w->active = active;
		1240	ev_ref (EV_A);
888	}	1241	}
889		1242
890	static void	1243	inline void
891	ev_stop (W w)	1244	ev_stop (EV_P_ W w)
892	{	1245	{
		1246	ev_unref (EV_A);
893	w->active = 0;	1247	w->active = 0;
894	}	1248	}
895		1249
896	/*****************************************************************************/	1250	/*****************************************************************************/
897		1251
898	void	1252	void
899	ev_io_start (struct ev_io *w)	1253	ev_io_start (EV_P_ struct ev_io *w)
900	{	1254	{
901	int fd = w->fd;	1255	int fd = w->fd;
902		1256
903	if (ev_is_active (w))	1257	if (ev_is_active (w))
904	return;	1258	return;
905		1259
906	assert (("ev_io_start called with negative fd", fd >= 0));	1260	assert (("ev_io_start called with negative fd", fd >= 0));
907		1261
908	ev_start ((W)w, 1);	1262	ev_start (EV_A_ (W)w, 1);
909	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1263	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
910	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1264	wlist_add ((WL *)&anfds[fd].head, (WL)w);
911		1265
912	fd_change (fd);	1266	fd_change (EV_A_ fd);
913	}	1267	}
914		1268
915	void	1269	void
916	ev_io_stop (struct ev_io *w)	1270	ev_io_stop (EV_P_ struct ev_io *w)
917	{	1271	{
918	ev_clear_pending ((W)w);	1272	ev_clear_pending (EV_A_ (W)w);
919	if (!ev_is_active (w))	1273	if (!ev_is_active (w))
920	return;	1274	return;
921		1275
922	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
923	ev_stop ((W)w);	1277	ev_stop (EV_A_ (W)w);
924		1278
925	fd_change (w->fd);	1279	fd_change (EV_A_ w->fd);
926	}	1280	}
927		1281
928	void	1282	void
929	ev_timer_start (struct ev_timer *w)	1283	ev_timer_start (EV_P_ struct ev_timer *w)
930	{	1284	{
931	if (ev_is_active (w))	1285	if (ev_is_active (w))
932	return;	1286	return;
933		1287
934	w->at += now;	1288	((WT)w)->at += mn_now;
935		1289
936	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1290	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
937		1291
938	ev_start ((W)w, ++timercnt);	1292	ev_start (EV_A_ (W)w, ++timercnt);
939	array_needsize (timers, timermax, timercnt, );	1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
940	timers [timercnt - 1] = w;	1294	timers [timercnt - 1] = w;
941	upheap ((WT *)timers, timercnt - 1);	1295	upheap ((WT *)timers, timercnt - 1);
942	}
943		1296
		1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1298	}
		1299
944	void	1300	void
945	ev_timer_stop (struct ev_timer *w)	1301	ev_timer_stop (EV_P_ struct ev_timer *w)
946	{	1302	{
947	ev_clear_pending ((W)w);	1303	ev_clear_pending (EV_A_ (W)w);
948	if (!ev_is_active (w))	1304	if (!ev_is_active (w))
949	return;	1305	return;
950		1306
		1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1308
951	if (w->active < timercnt--)	1309	if (((W)w)->active < timercnt--)
952	{	1310	{
953	timers [w->active - 1] = timers [timercnt];	1311	timers [((W)w)->active - 1] = timers [timercnt];
954	downheap ((WT *)timers, timercnt, w->active - 1);	1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
955	}	1313	}
956		1314
957	w->at = w->repeat;	1315	((WT)w)->at = w->repeat;
958		1316
959	ev_stop ((W)w);	1317	ev_stop (EV_A_ (W)w);
960	}	1318	}
961		1319
962	void	1320	void
963	ev_timer_again (struct ev_timer *w)	1321	ev_timer_again (EV_P_ struct ev_timer *w)
964	{	1322	{
965	if (ev_is_active (w))	1323	if (ev_is_active (w))
966	{	1324	{
967	if (w->repeat)	1325	if (w->repeat)
968	{	1326	{
969	w->at = now + w->repeat;	1327	((WT)w)->at = mn_now + w->repeat;
970	downheap ((WT *)timers, timercnt, w->active - 1);	1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
971	}	1329	}
972	else	1330	else
973	ev_timer_stop (w);	1331	ev_timer_stop (EV_A_ w);
974	}	1332	}
975	else if (w->repeat)	1333	else if (w->repeat)
976	ev_timer_start (w);	1334	ev_timer_start (EV_A_ w);
977	}	1335	}
978		1336
979	void	1337	void
980	ev_periodic_start (struct ev_periodic *w)	1338	ev_periodic_start (EV_P_ struct ev_periodic *w)
981	{	1339	{
982	if (ev_is_active (w))	1340	if (ev_is_active (w))
983	return;	1341	return;
984		1342
		1343	if (w->reschedule_cb)
		1344	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1345	else if (w->interval)
		1346	{
985	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1347	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
986
987	/* this formula differs from the one in periodic_reify because we do not always round up */	1348	/* this formula differs from the one in periodic_reify because we do not always round up */
988	if (w->interval)
989	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1349	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1350	}
990		1351
991	ev_start ((W)w, ++periodiccnt);	1352	ev_start (EV_A_ (W)w, ++periodiccnt);
992	array_needsize (periodics, periodicmax, periodiccnt, );	1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
993	periodics [periodiccnt - 1] = w;	1354	periodics [periodiccnt - 1] = w;
994	upheap ((WT *)periodics, periodiccnt - 1);	1355	upheap ((WT *)periodics, periodiccnt - 1);
995	}
996		1356
		1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1358	}
		1359
997	void	1360	void
998	ev_periodic_stop (struct ev_periodic *w)	1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)
999	{	1362	{
1000	ev_clear_pending ((W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1001	if (!ev_is_active (w))	1364	if (!ev_is_active (w))
1002	return;	1365	return;
1003		1366
		1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1368
1004	if (w->active < periodiccnt--)	1369	if (((W)w)->active < periodiccnt--)
1005	{	1370	{
1006	periodics [w->active - 1] = periodics [periodiccnt];	1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1007	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1008	}	1373	}
1009		1374
1010	ev_stop ((W)w);	1375	ev_stop (EV_A_ (W)w);
1011	}	1376	}
1012		1377
1013	void	1378	void
		1379	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1380	{
		1381	ev_periodic_stop (EV_A_ w);
		1382	ev_periodic_start (EV_A_ w);
		1383	}
		1384
		1385	void
1014	ev_signal_start (struct ev_signal *w)	1386	ev_idle_start (EV_P_ struct ev_idle *w)
1015	{	1387	{
1016	if (ev_is_active (w))	1388	if (ev_is_active (w))
1017	return;	1389	return;
1018		1390
		1391	ev_start (EV_A_ (W)w, ++idlecnt);
		1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1393	idles [idlecnt - 1] = w;
		1394	}
		1395
		1396	void
		1397	ev_idle_stop (EV_P_ struct ev_idle *w)
		1398	{
		1399	ev_clear_pending (EV_A_ (W)w);
		1400	if (ev_is_active (w))
		1401	return;
		1402
		1403	idles [((W)w)->active - 1] = idles [--idlecnt];
		1404	ev_stop (EV_A_ (W)w);
		1405	}
		1406
		1407	void
		1408	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1409	{
		1410	if (ev_is_active (w))
		1411	return;
		1412
		1413	ev_start (EV_A_ (W)w, ++preparecnt);
		1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1415	prepares [preparecnt - 1] = w;
		1416	}
		1417
		1418	void
		1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1420	{
		1421	ev_clear_pending (EV_A_ (W)w);
		1422	if (ev_is_active (w))
		1423	return;
		1424
		1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1426	ev_stop (EV_A_ (W)w);
		1427	}
		1428
		1429	void
		1430	ev_check_start (EV_P_ struct ev_check *w)
		1431	{
		1432	if (ev_is_active (w))
		1433	return;
		1434
		1435	ev_start (EV_A_ (W)w, ++checkcnt);
		1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1437	checks [checkcnt - 1] = w;
		1438	}
		1439
		1440	void
		1441	ev_check_stop (EV_P_ struct ev_check *w)
		1442	{
		1443	ev_clear_pending (EV_A_ (W)w);
		1444	if (ev_is_active (w))
		1445	return;
		1446
		1447	checks [((W)w)->active - 1] = checks [--checkcnt];
		1448	ev_stop (EV_A_ (W)w);
		1449	}
		1450
		1451	#ifndef SA_RESTART
		1452	# define SA_RESTART 0
		1453	#endif
		1454
		1455	void
		1456	ev_signal_start (EV_P_ struct ev_signal *w)
		1457	{
		1458	#if EV_MULTIPLICITY
		1459	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1460	#endif
		1461	if (ev_is_active (w))
		1462	return;
		1463
1019	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1464	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1020		1465
1021	ev_start ((W)w, 1);	1466	ev_start (EV_A_ (W)w, 1);
1022	array_needsize (signals, signalmax, w->signum, signals_init);	1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1023	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1024		1469
1025	if (!w->next)	1470	if (!((WL)w)->next)
1026	{	1471	{
		1472	#if WIN32
		1473	signal (w->signum, sighandler);
		1474	#else
1027	struct sigaction sa;	1475	struct sigaction sa;
1028	sa.sa_handler = sighandler;	1476	sa.sa_handler = sighandler;
1029	sigfillset (&sa.sa_mask);	1477	sigfillset (&sa.sa_mask);
1030	sa.sa_flags = 0;	1478	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1031	sigaction (w->signum, &sa, 0);	1479	sigaction (w->signum, &sa, 0);
		1480	#endif
1032	}	1481	}
1033	}	1482	}
1034		1483
1035	void	1484	void
1036	ev_signal_stop (struct ev_signal *w)	1485	ev_signal_stop (EV_P_ struct ev_signal *w)
1037	{	1486	{
1038	ev_clear_pending ((W)w);	1487	ev_clear_pending (EV_A_ (W)w);
1039	if (!ev_is_active (w))	1488	if (!ev_is_active (w))
1040	return;	1489	return;
1041		1490
1042	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1043	ev_stop ((W)w);	1492	ev_stop (EV_A_ (W)w);
1044		1493
1045	if (!signals [w->signum - 1].head)	1494	if (!signals [w->signum - 1].head)
1046	signal (w->signum, SIG_DFL);	1495	signal (w->signum, SIG_DFL);
1047	}	1496	}
1048		1497
1049	void	1498	void
1050	ev_idle_start (struct ev_idle *w)	1499	ev_child_start (EV_P_ struct ev_child *w)
1051	{	1500	{
		1501	#if EV_MULTIPLICITY
		1502	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1503	#endif
1052	if (ev_is_active (w))	1504	if (ev_is_active (w))
1053	return;	1505	return;
1054		1506
1055	ev_start ((W)w, ++idlecnt);	1507	ev_start (EV_A_ (W)w, 1);
1056	array_needsize (idles, idlemax, idlecnt, );	1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1057	idles [idlecnt - 1] = w;
1058	}	1509	}
1059		1510
1060	void	1511	void
1061	ev_idle_stop (struct ev_idle *w)	1512	ev_child_stop (EV_P_ struct ev_child *w)
1062	{	1513	{
1063	ev_clear_pending ((W)w);	1514	ev_clear_pending (EV_A_ (W)w);
1064	if (ev_is_active (w))	1515	if (ev_is_active (w))
1065	return;	1516	return;
1066		1517
1067	idles [w->active - 1] = idles [--idlecnt];
1068	ev_stop ((W)w);
1069	}
1070
1071	void
1072	ev_prepare_start (struct ev_prepare *w)
1073	{
1074	if (ev_is_active (w))
1075	return;
1076
1077	ev_start ((W)w, ++preparecnt);
1078	array_needsize (prepares, preparemax, preparecnt, );
1079	prepares [preparecnt - 1] = w;
1080	}
1081
1082	void
1083	ev_prepare_stop (struct ev_prepare *w)
1084	{
1085	ev_clear_pending ((W)w);
1086	if (ev_is_active (w))
1087	return;
1088
1089	prepares [w->active - 1] = prepares [--preparecnt];
1090	ev_stop ((W)w);
1091	}
1092
1093	void
1094	ev_check_start (struct ev_check *w)
1095	{
1096	if (ev_is_active (w))
1097	return;
1098
1099	ev_start ((W)w, ++checkcnt);
1100	array_needsize (checks, checkmax, checkcnt, );
1101	checks [checkcnt - 1] = w;
1102	}
1103
1104	void
1105	ev_check_stop (struct ev_check *w)
1106	{
1107	ev_clear_pending ((W)w);
1108	if (ev_is_active (w))
1109	return;
1110
1111	checks [w->active - 1] = checks [--checkcnt];
1112	ev_stop ((W)w);
1113	}
1114
1115	void
1116	ev_child_start (struct ev_child *w)
1117	{
1118	if (ev_is_active (w))
1119	return;
1120
1121	ev_start ((W)w, 1);
1122	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1123	}
1124
1125	void
1126	ev_child_stop (struct ev_child *w)
1127	{
1128	ev_clear_pending ((W)w);
1129	if (ev_is_active (w))
1130	return;
1131
1132	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1133	ev_stop ((W)w);	1519	ev_stop (EV_A_ (W)w);
1134	}	1520	}
1135		1521
1136	/*****************************************************************************/	1522	/*****************************************************************************/
1137		1523
1138	struct ev_once	1524	struct ev_once
…		…
1142	void (cb)(int revents, void arg);	1528	void (cb)(int revents, void arg);
1143	void *arg;	1529	void *arg;
1144	};	1530	};
1145		1531
1146	static void	1532	static void
1147	once_cb (struct ev_once *once, int revents)	1533	once_cb (EV_P_ struct ev_once *once, int revents)
1148	{	1534	{
1149	void (cb)(int revents, void arg) = once->cb;	1535	void (cb)(int revents, void arg) = once->cb;
1150	void *arg = once->arg;	1536	void *arg = once->arg;
1151		1537
1152	ev_io_stop (&once->io);	1538	ev_io_stop (EV_A_ &once->io);
1153	ev_timer_stop (&once->to);	1539	ev_timer_stop (EV_A_ &once->to);
1154	free (once);	1540	ev_free (once);
1155		1541
1156	cb (revents, arg);	1542	cb (revents, arg);
1157	}	1543	}
1158		1544
1159	static void	1545	static void
1160	once_cb_io (struct ev_io *w, int revents)	1546	once_cb_io (EV_P_ struct ev_io *w, int revents)
1161	{	1547	{
1162	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1548	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1163	}	1549	}
1164		1550
1165	static void	1551	static void
1166	once_cb_to (struct ev_timer *w, int revents)	1552	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1167	{	1553	{
1168	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1554	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1169	}	1555	}
1170		1556
1171	void	1557	void
1172	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1558	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1173	{	1559	{
1174	struct ev_once *once = malloc (sizeof (struct ev_once));	1560	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1175		1561
1176	if (!once)	1562	if (!once)
1177	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1178	else	1564	else
1179	{	1565	{
1180	once->cb = cb;	1566	once->cb = cb;
1181	once->arg = arg;	1567	once->arg = arg;
1182		1568
1183	ev_watcher_init (&once->io, once_cb_io);	1569	ev_init (&once->io, once_cb_io);
1184	if (fd >= 0)	1570	if (fd >= 0)
1185	{	1571	{
1186	ev_io_set (&once->io, fd, events);	1572	ev_io_set (&once->io, fd, events);
1187	ev_io_start (&once->io);	1573	ev_io_start (EV_A_ &once->io);
1188	}	1574	}
1189		1575
1190	ev_watcher_init (&once->to, once_cb_to);	1576	ev_init (&once->to, once_cb_to);
1191	if (timeout >= 0.)	1577	if (timeout >= 0.)
1192	{	1578	{
1193	ev_timer_set (&once->to, timeout, 0.);	1579	ev_timer_set (&once->to, timeout, 0.);
1194	ev_timer_start (&once->to);	1580	ev_timer_start (EV_A_ &once->to);
1195	}	1581	}
1196	}	1582	}
1197	}	1583	}
1198		1584
1199	/*****************************************************************************/
1200
1201	#if 0
1202
1203	struct ev_io wio;
1204
1205	static void
1206	sin_cb (struct ev_io *w, int revents)
1207	{
1208	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1209	}
1210
1211	static void
1212	ocb (struct ev_timer *w, int revents)
1213	{
1214	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1215	ev_timer_stop (w);
1216	ev_timer_start (w);
1217	}
1218
1219	static void
1220	scb (struct ev_signal *w, int revents)
1221	{
1222	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1223	ev_io_stop (&wio);
1224	ev_io_start (&wio);
1225	}
1226
1227	static void
1228	gcb (struct ev_signal *w, int revents)
1229	{
1230	fprintf (stderr, "generic %x\n", revents);
1231
1232	}
1233
1234	int main (void)
1235	{
1236	ev_init (0);
1237
1238	ev_io_init (&wio, sin_cb, 0, EV_READ);
1239	ev_io_start (&wio);
1240
1241	struct ev_timer t[10000];
1242
1243	#if 0
1244	int i;
1245	for (i = 0; i < 10000; ++i)
1246	{
1247	struct ev_timer *w = t + i;
1248	ev_watcher_init (w, ocb, i);
1249	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1250	ev_timer_start (w);
1251	if (drand48 () < 0.5)
1252	ev_timer_stop (w);
1253	}
1254	#endif
1255
1256	struct ev_timer t1;
1257	ev_timer_init (&t1, ocb, 5, 10);
1258	ev_timer_start (&t1);
1259
1260	struct ev_signal sig;
1261	ev_signal_init (&sig, scb, SIGQUIT);
1262	ev_signal_start (&sig);
1263
1264	struct ev_check cw;
1265	ev_check_init (&cw, gcb);
1266	ev_check_start (&cw);
1267
1268	struct ev_idle iw;
1269	ev_idle_init (&iw, gcb);
1270	ev_idle_start (&iw);
1271
1272	ev_loop (0);
1273
1274	return 0;
1275	}
1276
1277	#endif
1278
1279
1280
1281

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Comparing libev/ev.c (file contents): Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs. Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC