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

Comparing libev/ev.c (file contents):
Revision 1.43 by root, Fri Nov 2 20:21:33 2007 UTC vs.
Revision 1.84 by root, Fri Nov 9 23:04:35 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>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	67	#include <time.h>
50		68
		69	#include <signal.h>
		70
		71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
		74	# include <sys/wait.h>
		75	#endif
51	/**/	76	/**/
52		77
53	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
55	#endif	80	#endif
…		…
62	# define EV_USE_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 */
63	#endif	88	#endif
64		89
65	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		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
67	#endif	106	#endif
68		107
69	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
71	#endif	110	#endif
…		…
87	#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) */
88	#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) */
89	#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 */
90	/#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 */
91		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
92	#include "ev.h"	134	# include "ev.h"
		135	#endif
93		136
94	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	138	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	139	# define inline inline
97	#else	140	#else
…		…
107		150
108	typedef struct ev_watcher *W;	151	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	152	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	153	typedef struct ev_watcher_time *WT;
111		154
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
113	ev_tstamp ev_now;
114	int ev_method;
115		156
116	static int have_monotonic; /* runtime */	157	#include "ev_win32.c"
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		158
122	/*****************************************************************************/	159	/*****************************************************************************/
123		160
124	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
125	ev_time (void)	248	ev_time (void)
126	{	249	{
127	#if EV_USE_REALTIME	250	#if EV_USE_REALTIME
128	struct timespec ts;	251	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	252	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	256	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	257	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	258	#endif
136	}	259	}
137		260
138	static ev_tstamp	261	inline ev_tstamp
139	get_clock (void)	262	get_clock (void)
140	{	263	{
141	#if EV_USE_MONOTONIC	264	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	265	if (expect_true (have_monotonic))
143	{	266	{
…		…
148	#endif	271	#endif
149		272
150	return ev_time ();	273	return ev_time ();
151	}	274	}
152		275
		276	ev_tstamp
		277	ev_now (EV_P)
		278	{
		279	return rt_now;
		280	}
		281
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	282	#define array_roundsize(type,n) ((n) \| 4 & ~3)
154		283
155	#define array_needsize(base,cur,cnt,init) \	284	#define array_needsize(type,base,cur,cnt,init) \
156	if (expect_false ((cnt) > cur)) \	285	if (expect_false ((cnt) > cur)) \
157	{ \	286	{ \
158	int newcnt = cur; \	287	int newcnt = cur; \
159	do \	288	do \
160	{ \	289	{ \
161	newcnt = array_roundsize (base, newcnt << 1); \	290	newcnt = array_roundsize (type, newcnt << 1); \
162	} \	291	} \
163	while ((cnt) > newcnt); \	292	while ((cnt) > newcnt); \
164	\	293	\
165	base = realloc (base, sizeof (base) (newcnt)); \	294	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
166	init (base + cur, newcnt - cur); \	295	init (base + cur, newcnt - cur); \
167	cur = newcnt; \	296	cur = newcnt; \
168	}	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;
169		314
170	/*****************************************************************************/	315	/*****************************************************************************/
171
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181		316
182	static void	317	static void
183	anfds_init (ANFD *base, int count)	318	anfds_init (ANFD *base, int count)
184	{	319	{
185	while (count--)	320	while (count--)
…		…
190		325
191	++base;	326	++base;
192	}	327	}
193	}	328	}
194		329
195	typedef struct	330	void
		331	ev_feed_event (EV_P_ void *w, int revents)
196	{	332	{
197	W w;	333	W w_ = (W)w;
198	int events;
199	} ANPENDING;
200		334
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void
205	event (W w, int events)
206	{
207	if (w->pending)	335	if (w_->pending)
208	{	336	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
210	return;	338	return;
211	}	339	}
212		340
213	w->pending = ++pendingcnt [ABSPRI (w)];	341	w_->pending = ++pendingcnt [ABSPRI (w_)];
214	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));
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
217	}	345	}
218		346
219	static void	347	static void
220	queue_events (W *events, int eventcnt, int type)	348	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	349	{
222	int i;	350	int i;
223		351
224	for (i = 0; i < eventcnt; ++i)	352	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	353	ev_feed_event (EV_A_ events [i], type);
226	}	354	}
227		355
228	static void	356	inline void
229	fd_event (int fd, int events)	357	fd_event (EV_P_ int fd, int revents)
230	{	358	{
231	ANFD *anfd = anfds + fd;	359	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	360	struct ev_io *w;
233		361
234	for (w = anfd->head; w; w = w->next)	362	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	363	{
236	int ev = w->events & events;	364	int ev = w->events & revents;
237		365
238	if (ev)	366	if (ev)
239	event ((W)w, ev);	367	ev_feed_event (EV_A_ (W)w, ev);
240	}	368	}
		369	}
		370
		371	void
		372	ev_feed_fd_event (EV_P_ int fd, int revents)
		373	{
		374	fd_event (EV_A_ fd, revents);
241	}	375	}
242		376
243	/*****************************************************************************/	377	/*****************************************************************************/
244		378
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	379	static void
249	fd_reify (void)	380	fd_reify (EV_P)
250	{	381	{
251	int i;	382	int i;
252		383
253	for (i = 0; i < fdchangecnt; ++i)	384	for (i = 0; i < fdchangecnt; ++i)
254	{	385	{
…		…
256	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	388	struct ev_io *w;
258		389
259	int events = 0;	390	int events = 0;
260		391
261	for (w = anfd->head; w; w = w->next)	392	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	393	events \|= w->events;
263		394
264	anfd->reify = 0;	395	anfd->reify = 0;
265		396
266	if (anfd->events != events)
267	{
268	method_modify (fd, anfd->events, events);	397	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	398	anfd->events = events;
270	}
271	}	399	}
272		400
273	fdchangecnt = 0;	401	fdchangecnt = 0;
274	}	402	}
275		403
276	static void	404	static void
277	fd_change (int fd)	405	fd_change (EV_P_ int fd)
278	{	406	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	407	if (anfds [fd].reify)
280	return;	408	return;
281		409
282	anfds [fd].reify = 1;	410	anfds [fd].reify = 1;
283		411
284	++fdchangecnt;	412	++fdchangecnt;
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
286	fdchanges [fdchangecnt - 1] = fd;	414	fdchanges [fdchangecnt - 1] = fd;
287	}	415	}
288		416
289	static void	417	static void
290	fd_kill (int fd)	418	fd_kill (EV_P_ int fd)
291	{	419	{
292	struct ev_io *w;	420	struct ev_io *w;
293		421
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	422	while ((w = (struct ev_io *)anfds [fd].head))
296	{	423	{
297	ev_io_stop (w);	424	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	425	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	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
300	}	437	}
301		438
302	/* called on EBADF to verify fds */	439	/* called on EBADF to verify fds */
303	static void	440	static void
304	fd_ebadf (void)	441	fd_ebadf (EV_P)
305	{	442	{
306	int fd;	443	int fd;
307		444
308	for (fd = 0; fd < anfdmax; ++fd)	445	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	446	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	447	if (!fd_valid (fd) == -1 && errno == EBADF)
311	fd_kill (fd);	448	fd_kill (EV_A_ fd);
312	}	449	}
313		450
314	/* 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 */
315	static void	452	static void
316	fd_enomem (void)	453	fd_enomem (EV_P)
317	{	454	{
318	int fd = anfdmax;	455	int fd;
319		456
320	while (fd--)	457	for (fd = anfdmax; fd--; )
321	if (anfds [fd].events)	458	if (anfds [fd].events)
322	{	459	{
323	close (fd);
324	fd_kill (fd);	460	fd_kill (EV_A_ fd);
325	return;	461	return;
326	}	462	}
327	}	463	}
328		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
329	/*****************************************************************************/	480	/*****************************************************************************/
330		481
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	482	static void
338	upheap (WT *timers, int k)	483	upheap (WT *heap, int k)
339	{	484	{
340	WT w = timers [k];	485	WT w = heap [k];
341		486
342	while (k && timers [k >> 1]->at > w->at)	487	while (k && heap [k >> 1]->at > w->at)
343	{	488	{
344	timers [k] = timers [k >> 1];	489	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	490	((W)heap [k])->active = k + 1;
346	k >>= 1;	491	k >>= 1;
347	}	492	}
348		493
349	timers [k] = w;	494	heap [k] = w;
350	timers [k]->active = k + 1;	495	((W)heap [k])->active = k + 1;
351		496
352	}	497	}
353		498
354	static void	499	static void
355	downheap (WT *timers, int N, int k)	500	downheap (WT *heap, int N, int k)
356	{	501	{
357	WT w = timers [k];	502	WT w = heap [k];
358		503
359	while (k < (N >> 1))	504	while (k < (N >> 1))
360	{	505	{
361	int j = k << 1;	506	int j = k << 1;
362		507
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	508	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	509	++j;
365		510
366	if (w->at <= timers [j]->at)	511	if (w->at <= heap [j]->at)
367	break;	512	break;
368		513
369	timers [k] = timers [j];	514	heap [k] = heap [j];
370	timers [k]->active = k + 1;	515	((W)heap [k])->active = k + 1;
371	k = j;	516	k = j;
372	}	517	}
373		518
374	timers [k] = w;	519	heap [k] = w;
375	timers [k]->active = k + 1;	520	((W)heap [k])->active = k + 1;
		521	}
		522
		523	inline void
		524	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		525	{
		526	ev_tstamp old_at = heap [k]->at;
		527	heap [k]->at = at;
		528
		529	if (old_at < at)
		530	downheap (heap, N, k);
		531	else
		532	upheap (heap, k);
376	}	533	}
377		534
378	/*****************************************************************************/	535	/*****************************************************************************/
379		536
380	typedef struct	537	typedef struct
381	{	538	{
382	struct ev_signal *head;	539	WL head;
383	sig_atomic_t volatile gotsig;	540	sig_atomic_t volatile gotsig;
384	} ANSIG;	541	} ANSIG;
385		542
386	static ANSIG *signals;	543	static ANSIG *signals;
387	static int signalmax;	544	static int signalmax;
…		…
403	}	560	}
404		561
405	static void	562	static void
406	sighandler (int signum)	563	sighandler (int signum)
407	{	564	{
		565	#if WIN32
		566	signal (signum, sighandler);
		567	#endif
		568
408	signals [signum - 1].gotsig = 1;	569	signals [signum - 1].gotsig = 1;
409		570
410	if (!gotsig)	571	if (!gotsig)
411	{	572	{
		573	int old_errno = errno;
412	gotsig = 1;	574	gotsig = 1;
		575	#ifdef WIN32
		576	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		577	#else
413	write (sigpipe [1], &signum, 1);	578	write (sigpipe [1], &signum, 1);
		579	#endif
		580	errno = old_errno;
414	}	581	}
415	}	582	}
416		583
		584	void
		585	ev_feed_signal_event (EV_P_ int signum)
		586	{
		587	WL w;
		588
		589	#if EV_MULTIPLICITY
		590	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		591	#endif
		592
		593	--signum;
		594
		595	if (signum < 0 \|\| signum >= signalmax)
		596	return;
		597
		598	signals [signum].gotsig = 0;
		599
		600	for (w = signals [signum].head; w; w = w->next)
		601	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		602	}
		603
417	static void	604	static void
418	sigcb (struct ev_io *iow, int revents)	605	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	606	{
420	struct ev_signal *w;
421	int signum;	607	int signum;
422		608
		609	#ifdef WIN32
		610	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		611	#else
423	read (sigpipe [0], &revents, 1);	612	read (sigpipe [0], &revents, 1);
		613	#endif
424	gotsig = 0;	614	gotsig = 0;
425		615
426	for (signum = signalmax; signum--; )	616	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	617	if (signals [signum].gotsig)
428	{	618	ev_feed_signal_event (EV_A_ signum + 1);
429	signals [signum].gotsig = 0;
430
431	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);
433	}
434	}	619	}
435		620
436	static void	621	static void
437	siginit (void)	622	siginit (EV_P)
438	{	623	{
		624	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	625	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	626	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		627
442	/* rather than sort out wether we really need nb, set it */	628	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	629	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	630	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		631	#endif
445		632
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	633	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	634	ev_io_start (EV_A_ &sigev);
		635	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	636	}
449		637
450	/*****************************************************************************/	638	/*****************************************************************************/
451		639
452	static struct ev_idle **idles;
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];	640	static struct ev_child *childs [PID_HASHSIZE];
		641
		642	#ifndef WIN32
		643
464	static struct ev_signal childev;	644	static struct ev_signal childev;
465		645
466	#ifndef WCONTINUED	646	#ifndef WCONTINUED
467	# define WCONTINUED 0	647	# define WCONTINUED 0
468	#endif	648	#endif
469		649
470	static void	650	static void
471	childcb (struct ev_signal *sw, int revents)	651	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	652	{
473	struct ev_child *w;	653	struct ev_child *w;
		654
		655	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		656	if (w->pid == pid \|\| !w->pid)
		657	{
		658	ev_priority (w) = ev_priority (sw); /* need to do it now */
		659	w->rpid = pid;
		660	w->rstatus = status;
		661	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		662	}
		663	}
		664
		665	static void
		666	childcb (EV_P_ struct ev_signal *sw, int revents)
		667	{
474	int pid, status;	668	int pid, status;
475		669
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	670	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	671	{
478	if (w->pid == pid \|\| !w->pid)	672	/* make sure we are called again until all childs have been reaped */
479	{	673	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	674
481	event ((W)w, EV_CHILD);	675	child_reap (EV_A_ sw, pid, pid, status);
482	}	676	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		677	}
483	}	678	}
		679
		680	#endif
484		681
485	/*****************************************************************************/	682	/*****************************************************************************/
486		683
		684	#if EV_USE_KQUEUE
		685	# include "ev_kqueue.c"
		686	#endif
487	#if EV_USE_EPOLL	687	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	688	# include "ev_epoll.c"
489	#endif	689	#endif
490	#if EV_USE_POLL	690	#if EV_USE_POLL
491	# include "ev_poll.c"	691	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	704	ev_version_minor (void)
505	{	705	{
506	return EV_VERSION_MINOR;	706	return EV_VERSION_MINOR;
507	}	707	}
508		708
509	/* return true if we are running with elevated privileges and ignore env variables */	709	/* return true if we are running with elevated privileges and should ignore env variables */
510	static int	710	static int
511	enable_secure ()	711	enable_secure (void)
512	{	712	{
		713	#ifdef WIN32
		714	return 0;
		715	#else
513	return getuid () != geteuid ()	716	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	717	\|\| getgid () != getegid ();
		718	#endif
515	}	719	}
516		720
517	int ev_init (int methods)	721	int
		722	ev_method (EV_P)
518	{	723	{
		724	return method;
		725	}
		726
		727	static void
		728	loop_init (EV_P_ int methods)
		729	{
519	if (!ev_method)	730	if (!method)
520	{	731	{
521	#if EV_USE_MONOTONIC	732	#if EV_USE_MONOTONIC
522	{	733	{
523	struct timespec ts;	734	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	735	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	736	have_monotonic = 1;
526	}	737	}
527	#endif	738	#endif
528		739
529	ev_now = ev_time ();	740	rt_now = ev_time ();
530	now = get_clock ();	741	mn_now = get_clock ();
531	now_floor = now;	742	now_floor = mn_now;
532	diff = ev_now - now;	743	rtmn_diff = rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		744
537	if (methods == EVMETHOD_AUTO)	745	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	746	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	747	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	748	else
541	methods = EVMETHOD_ANY;	749	methods = EVMETHOD_ANY;
542		750
543	ev_method = 0;	751	method = 0;
		752	#if EV_USE_WIN32
		753	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		754	#endif
		755	#if EV_USE_KQUEUE
		756	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		757	#endif
544	#if EV_USE_EPOLL	758	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	759	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	760	#endif
547	#if EV_USE_POLL	761	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	762	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	763	#endif
550	#if EV_USE_SELECT	764	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	765	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	766	#endif
553		767
		768	ev_init (&sigev, sigcb);
		769	ev_set_priority (&sigev, EV_MAXPRI);
		770	}
		771	}
		772
		773	void
		774	loop_destroy (EV_P)
		775	{
		776	int i;
		777
		778	#if EV_USE_WIN32
		779	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		780	#endif
		781	#if EV_USE_KQUEUE
		782	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		783	#endif
		784	#if EV_USE_EPOLL
		785	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		786	#endif
		787	#if EV_USE_POLL
		788	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		789	#endif
		790	#if EV_USE_SELECT
		791	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		792	#endif
		793
		794	for (i = NUMPRI; i--; )
		795	array_free (pending, [i]);
		796
		797	/* have to use the microsoft-never-gets-it-right macro */
		798	array_free_microshit (fdchange);
		799	array_free_microshit (timer);
		800	array_free_microshit (periodic);
		801	array_free_microshit (idle);
		802	array_free_microshit (prepare);
		803	array_free_microshit (check);
		804
		805	method = 0;
		806	}
		807
		808	static void
		809	loop_fork (EV_P)
		810	{
		811	#if EV_USE_EPOLL
		812	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		813	#endif
		814	#if EV_USE_KQUEUE
		815	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		816	#endif
		817
		818	if (ev_is_active (&sigev))
		819	{
		820	/* default loop */
		821
		822	ev_ref (EV_A);
		823	ev_io_stop (EV_A_ &sigev);
		824	close (sigpipe [0]);
		825	close (sigpipe [1]);
		826
		827	while (pipe (sigpipe))
		828	syserr ("(libev) error creating pipe");
		829
		830	siginit (EV_A);
		831	}
		832
		833	postfork = 0;
		834	}
		835
		836	#if EV_MULTIPLICITY
		837	struct ev_loop *
		838	ev_loop_new (int methods)
		839	{
		840	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		841
		842	memset (loop, 0, sizeof (struct ev_loop));
		843
		844	loop_init (EV_A_ methods);
		845
		846	if (ev_method (EV_A))
		847	return loop;
		848
		849	return 0;
		850	}
		851
		852	void
		853	ev_loop_destroy (EV_P)
		854	{
		855	loop_destroy (EV_A);
		856	ev_free (loop);
		857	}
		858
		859	void
		860	ev_loop_fork (EV_P)
		861	{
		862	postfork = 1;
		863	}
		864
		865	#endif
		866
		867	#if EV_MULTIPLICITY
		868	struct ev_loop *
		869	#else
		870	int
		871	#endif
		872	ev_default_loop (int methods)
		873	{
		874	if (sigpipe [0] == sigpipe [1])
		875	if (pipe (sigpipe))
		876	return 0;
		877
		878	if (!default_loop)
		879	{
		880	#if EV_MULTIPLICITY
		881	struct ev_loop *loop = default_loop = &default_loop_struct;
		882	#else
		883	default_loop = 1;
		884	#endif
		885
		886	loop_init (EV_A_ methods);
		887
554	if (ev_method)	888	if (ev_method (EV_A))
555	{	889	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	890	siginit (EV_A);
558		891
		892	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	893	ev_signal_init (&childev, childcb, SIGCHLD);
		894	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	895	ev_signal_start (EV_A_ &childev);
		896	ev_unref (EV_A); /* child watcher should not keep loop alive */
		897	#endif
561	}	898	}
		899	else
		900	default_loop = 0;
562	}	901	}
563		902
564	return ev_method;	903	return default_loop;
		904	}
		905
		906	void
		907	ev_default_destroy (void)
		908	{
		909	#if EV_MULTIPLICITY
		910	struct ev_loop *loop = default_loop;
		911	#endif
		912
		913	#ifndef WIN32
		914	ev_ref (EV_A); /* child watcher */
		915	ev_signal_stop (EV_A_ &childev);
		916	#endif
		917
		918	ev_ref (EV_A); /* signal watcher */
		919	ev_io_stop (EV_A_ &sigev);
		920
		921	close (sigpipe [0]); sigpipe [0] = 0;
		922	close (sigpipe [1]); sigpipe [1] = 0;
		923
		924	loop_destroy (EV_A);
		925	}
		926
		927	void
		928	ev_default_fork (void)
		929	{
		930	#if EV_MULTIPLICITY
		931	struct ev_loop *loop = default_loop;
		932	#endif
		933
		934	if (method)
		935	postfork = 1;
565	}	936	}
566		937
567	/*****************************************************************************/	938	/*****************************************************************************/
568		939
569	void
570	ev_fork_prepare (void)
571	{
572	/* nop */
573	}
574
575	void
576	ev_fork_parent (void)
577	{
578	/* nop */
579	}
580
581	void
582	ev_fork_child (void)
583	{
584	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();
587	#endif
588
589	ev_io_stop (&sigev);
590	close (sigpipe [0]);
591	close (sigpipe [1]);
592	pipe (sigpipe);
593	siginit ();
594	}
595
596	/*****************************************************************************/
597
598	static void	940	static int
		941	any_pending (EV_P)
		942	{
		943	int pri;
		944
		945	for (pri = NUMPRI; pri--; )
		946	if (pendingcnt [pri])
		947	return 1;
		948
		949	return 0;
		950	}
		951
		952	static void
599	call_pending (void)	953	call_pending (EV_P)
600	{	954	{
601	int pri;	955	int pri;
602		956
603	for (pri = NUMPRI; pri--; )	957	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	958	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	960	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		961
608	if (p->w)	962	if (p->w)
609	{	963	{
610	p->w->pending = 0;	964	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	965	EV_CB_INVOKE (p->w, p->events);
612	}	966	}
613	}	967	}
614	}	968	}
615		969
616	static void	970	static void
617	timers_reify (void)	971	timers_reify (EV_P)
618	{	972	{
619	while (timercnt && timers [0]->at <= now)	973	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	974	{
621	struct ev_timer *w = timers [0];	975	struct ev_timer *w = timers [0];
		976
		977	assert (("inactive timer on timer heap detected", ev_is_active (w)));
622		978
623	/* first reschedule or stop timer */	979	/* first reschedule or stop timer */
624	if (w->repeat)	980	if (w->repeat)
625	{	981	{
626	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	982	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
627	w->at = now + w->repeat;	983	((WT)w)->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	984	downheap ((WT *)timers, timercnt, 0);
629	}	985	}
630	else	986	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	987	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		988
633	event ((W)w, EV_TIMEOUT);	989	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	990	}
635	}	991	}
636		992
637	static void	993	static void
638	periodics_reify (void)	994	periodics_reify (EV_P)
639	{	995	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	996	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
641	{	997	{
642	struct ev_periodic *w = periodics [0];	998	struct ev_periodic *w = periodics [0];
643		999
		1000	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1001
644	/* first reschedule or stop timer */	1002	/* first reschedule or stop timer */
645	if (w->interval)	1003	if (w->reschedule_cb)
646	{	1004	{
		1005	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		1006
		1007	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		1008	downheap ((WT *)periodics, periodiccnt, 0);
		1009	}
		1010	else if (w->interval)
		1011	{
647	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1012	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
648	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1013	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
649	downheap ((WT *)periodics, periodiccnt, 0);	1014	downheap ((WT *)periodics, periodiccnt, 0);
650	}	1015	}
651	else	1016	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	1017	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		1018
654	event ((W)w, EV_PERIODIC);	1019	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	1020	}
656	}	1021	}
657		1022
658	static void	1023	static void
659	periodics_reschedule (ev_tstamp diff)	1024	periodics_reschedule (EV_P)
660	{	1025	{
661	int i;	1026	int i;
662		1027
663	/* adjust periodics after time jump */	1028	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	1029	for (i = 0; i < periodiccnt; ++i)
665	{	1030	{
666	struct ev_periodic *w = periodics [i];	1031	struct ev_periodic *w = periodics [i];
667		1032
		1033	if (w->reschedule_cb)
		1034	((WT)w)->at = w->reschedule_cb (w, rt_now);
668	if (w->interval)	1035	else if (w->interval)
669	{
670	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1036	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
671
672	if (fabs (diff) >= 1e-4)
673	{
674	ev_periodic_stop (w);
675	ev_periodic_start (w);
676
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}
679	}
680	}	1037	}
681	}
682		1038
683	static int	1039	/* now rebuild the heap */
		1040	for (i = periodiccnt >> 1; i--; )
		1041	downheap ((WT *)periodics, periodiccnt, i);
		1042	}
		1043
		1044	inline int
684	time_update_monotonic (void)	1045	time_update_monotonic (EV_P)
685	{	1046	{
686	now = get_clock ();	1047	mn_now = get_clock ();
687		1048
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1049	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1050	{
690	ev_now = now + diff;	1051	rt_now = rtmn_diff + mn_now;
691	return 0;	1052	return 0;
692	}	1053	}
693	else	1054	else
694	{	1055	{
695	now_floor = now;	1056	now_floor = mn_now;
696	ev_now = ev_time ();	1057	rt_now = ev_time ();
697	return 1;	1058	return 1;
698	}	1059	}
699	}	1060	}
700		1061
701	static void	1062	static void
702	time_update (void)	1063	time_update (EV_P)
703	{	1064	{
704	int i;	1065	int i;
705		1066
706	#if EV_USE_MONOTONIC	1067	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1068	if (expect_true (have_monotonic))
708	{	1069	{
709	if (time_update_monotonic ())	1070	if (time_update_monotonic (EV_A))
710	{	1071	{
711	ev_tstamp odiff = diff;	1072	ev_tstamp odiff = rtmn_diff;
712		1073
713	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1074	for (i = 4; --i; ) /* loop a few times, before making important decisions */
714	{	1075	{
715	diff = ev_now - now;	1076	rtmn_diff = rt_now - mn_now;
716		1077
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1078	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1079	return; /* all is well */
719		1080
720	ev_now = ev_time ();	1081	rt_now = ev_time ();
721	now = get_clock ();	1082	mn_now = get_clock ();
722	now_floor = now;	1083	now_floor = mn_now;
723	}	1084	}
724		1085
725	periodics_reschedule (diff - odiff);	1086	periodics_reschedule (EV_A);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	1087	/* no timer adjustment, as the monotonic clock doesn't jump */
		1088	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
727	}	1089	}
728	}	1090	}
729	else	1091	else
730	#endif	1092	#endif
731	{	1093	{
732	ev_now = ev_time ();	1094	rt_now = ev_time ();
733		1095
734	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1096	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
735	{	1097	{
736	periodics_reschedule (ev_now - now);	1098	periodics_reschedule (EV_A);
737		1099
738	/* adjust timers. this is easy, as the offset is the same for all */	1100	/* adjust timers. this is easy, as the offset is the same for all */
739	for (i = 0; i < timercnt; ++i)	1101	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1102	((WT)timers [i])->at += rt_now - mn_now;
741	}	1103	}
742		1104
743	now = ev_now;	1105	mn_now = rt_now;
744	}	1106	}
745	}	1107	}
746		1108
747	int ev_loop_done;	1109	void
		1110	ev_ref (EV_P)
		1111	{
		1112	++activecnt;
		1113	}
748		1114
		1115	void
		1116	ev_unref (EV_P)
		1117	{
		1118	--activecnt;
		1119	}
		1120
		1121	static int loop_done;
		1122
		1123	void
749	void ev_loop (int flags)	1124	ev_loop (EV_P_ int flags)
750	{	1125	{
751	double block;	1126	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1127	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		1128
754	do	1129	do
755	{	1130	{
756	/* queue check watchers (and execute them) */	1131	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1132	if (expect_false (preparecnt))
758	{	1133	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1134	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1135	call_pending (EV_A);
761	}	1136	}
762		1137
		1138	/* we might have forked, so reify kernel state if necessary */
		1139	if (expect_false (postfork))
		1140	loop_fork (EV_A);
		1141
763	/* update fd-related kernel structures */	1142	/* update fd-related kernel structures */
764	fd_reify ();	1143	fd_reify (EV_A);
765		1144
766	/* calculate blocking time */	1145	/* calculate blocking time */
767		1146
768	/* we only need this for !monotonic clockor timers, but as we basically	1147	/* we only need this for !monotonic clock or timers, but as we basically
769	always have timers, we just calculate it always */	1148	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1149	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1150	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1151	time_update_monotonic (EV_A);
773	else	1152	else
774	#endif	1153	#endif
775	{	1154	{
776	ev_now = ev_time ();	1155	rt_now = ev_time ();
777	now = ev_now;	1156	mn_now = rt_now;
778	}	1157	}
779		1158
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1159	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	1160	block = 0.;
782	else	1161	else
783	{	1162	{
784	block = MAX_BLOCKTIME;	1163	block = MAX_BLOCKTIME;
785		1164
786	if (timercnt)	1165	if (timercnt)
787	{	1166	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1167	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1168	if (block > to) block = to;
790	}	1169	}
791		1170
792	if (periodiccnt)	1171	if (periodiccnt)
793	{	1172	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1173	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
795	if (block > to) block = to;	1174	if (block > to) block = to;
796	}	1175	}
797		1176
798	if (block < 0.) block = 0.;	1177	if (block < 0.) block = 0.;
799	}	1178	}
800		1179
801	method_poll (block);	1180	method_poll (EV_A_ block);
802		1181
803	/* update ev_now, do magic */	1182	/* update rt_now, do magic */
804	time_update ();	1183	time_update (EV_A);
805		1184
806	/* queue pending timers and reschedule them */	1185	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1186	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	1187	periodics_reify (EV_A); /* absolute timers called first */
809		1188
810	/* queue idle watchers unless io or timers are pending */	1189	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1190	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1191	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1192
814	/* queue check watchers, to be executed first */	1193	/* queue check watchers, to be executed first */
815	if (checkcnt)	1194	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1195	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1196
818	call_pending ();	1197	call_pending (EV_A);
819	}	1198	}
820	while (!ev_loop_done);	1199	while (activecnt && !loop_done);
821		1200
822	if (ev_loop_done != 2)	1201	if (loop_done != 2)
823	ev_loop_done = 0;	1202	loop_done = 0;
		1203	}
		1204
		1205	void
		1206	ev_unloop (EV_P_ int how)
		1207	{
		1208	loop_done = how;
824	}	1209	}
825		1210
826	/*****************************************************************************/	1211	/*****************************************************************************/
827		1212
828	static void	1213	inline void
829	wlist_add (WL *head, WL elem)	1214	wlist_add (WL *head, WL elem)
830	{	1215	{
831	elem->next = *head;	1216	elem->next = *head;
832	*head = elem;	1217	*head = elem;
833	}	1218	}
834		1219
835	static void	1220	inline void
836	wlist_del (WL *head, WL elem)	1221	wlist_del (WL *head, WL elem)
837	{	1222	{
838	while (*head)	1223	while (*head)
839	{	1224	{
840	if (*head == elem)	1225	if (*head == elem)
…		…
845		1230
846	head = &(*head)->next;	1231	head = &(*head)->next;
847	}	1232	}
848	}	1233	}
849		1234
850	static void	1235	inline void
851	ev_clear_pending (W w)	1236	ev_clear_pending (EV_P_ W w)
852	{	1237	{
853	if (w->pending)	1238	if (w->pending)
854	{	1239	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1240	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1241	w->pending = 0;
857	}	1242	}
858	}	1243	}
859		1244
860	static void	1245	inline void
861	ev_start (W w, int active)	1246	ev_start (EV_P_ W w, int active)
862	{	1247	{
863	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1248	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
864	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1249	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
865		1250
866	w->active = active;	1251	w->active = active;
		1252	ev_ref (EV_A);
867	}	1253	}
868		1254
869	static void	1255	inline void
870	ev_stop (W w)	1256	ev_stop (EV_P_ W w)
871	{	1257	{
		1258	ev_unref (EV_A);
872	w->active = 0;	1259	w->active = 0;
873	}	1260	}
874		1261
875	/*****************************************************************************/	1262	/*****************************************************************************/
876		1263
877	void	1264	void
878	ev_io_start (struct ev_io *w)	1265	ev_io_start (EV_P_ struct ev_io *w)
879	{	1266	{
880	int fd = w->fd;	1267	int fd = w->fd;
881		1268
882	if (ev_is_active (w))	1269	if (ev_is_active (w))
883	return;	1270	return;
884		1271
885	assert (("ev_io_start called with negative fd", fd >= 0));	1272	assert (("ev_io_start called with negative fd", fd >= 0));
886		1273
887	ev_start ((W)w, 1);	1274	ev_start (EV_A_ (W)w, 1);
888	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1275	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
889	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1276	wlist_add ((WL *)&anfds[fd].head, (WL)w);
890		1277
891	fd_change (fd);	1278	fd_change (EV_A_ fd);
892	}	1279	}
893		1280
894	void	1281	void
895	ev_io_stop (struct ev_io *w)	1282	ev_io_stop (EV_P_ struct ev_io *w)
896	{	1283	{
897	ev_clear_pending ((W)w);	1284	ev_clear_pending (EV_A_ (W)w);
898	if (!ev_is_active (w))	1285	if (!ev_is_active (w))
899	return;	1286	return;
900		1287
901	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1288	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
902	ev_stop ((W)w);	1289	ev_stop (EV_A_ (W)w);
903		1290
904	fd_change (w->fd);	1291	fd_change (EV_A_ w->fd);
905	}	1292	}
906		1293
907	void	1294	void
908	ev_timer_start (struct ev_timer *w)	1295	ev_timer_start (EV_P_ struct ev_timer *w)
909	{	1296	{
910	if (ev_is_active (w))	1297	if (ev_is_active (w))
911	return;	1298	return;
912		1299
913	w->at += now;	1300	((WT)w)->at += mn_now;
914		1301
915	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1302	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
916		1303
917	ev_start ((W)w, ++timercnt);	1304	ev_start (EV_A_ (W)w, ++timercnt);
918	array_needsize (timers, timermax, timercnt, );	1305	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
919	timers [timercnt - 1] = w;	1306	timers [timercnt - 1] = w;
920	upheap ((WT *)timers, timercnt - 1);	1307	upheap ((WT *)timers, timercnt - 1);
921	}
922		1308
		1309	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1310	}
		1311
923	void	1312	void
924	ev_timer_stop (struct ev_timer *w)	1313	ev_timer_stop (EV_P_ struct ev_timer *w)
925	{	1314	{
926	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
927	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
928	return;	1317	return;
929		1318
		1319	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1320
930	if (w->active < timercnt--)	1321	if (((W)w)->active < timercnt--)
931	{	1322	{
932	timers [w->active - 1] = timers [timercnt];	1323	timers [((W)w)->active - 1] = timers [timercnt];
933	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
934	}	1325	}
935		1326
936	w->at = w->repeat;	1327	((WT)w)->at = w->repeat;
937		1328
938	ev_stop ((W)w);	1329	ev_stop (EV_A_ (W)w);
939	}	1330	}
940		1331
941	void	1332	void
942	ev_timer_again (struct ev_timer *w)	1333	ev_timer_again (EV_P_ struct ev_timer *w)
943	{	1334	{
944	if (ev_is_active (w))	1335	if (ev_is_active (w))
945	{	1336	{
946	if (w->repeat)	1337	if (w->repeat)
947	{
948	w->at = now + w->repeat;
949	downheap ((WT *)timers, timercnt, w->active - 1);	1338	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
950	}
951	else	1339	else
952	ev_timer_stop (w);	1340	ev_timer_stop (EV_A_ w);
953	}	1341	}
954	else if (w->repeat)	1342	else if (w->repeat)
955	ev_timer_start (w);	1343	ev_timer_start (EV_A_ w);
956	}	1344	}
957		1345
958	void	1346	void
959	ev_periodic_start (struct ev_periodic *w)	1347	ev_periodic_start (EV_P_ struct ev_periodic *w)
960	{	1348	{
961	if (ev_is_active (w))	1349	if (ev_is_active (w))
962	return;	1350	return;
963		1351
		1352	if (w->reschedule_cb)
		1353	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1354	else if (w->interval)
		1355	{
964	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1356	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
965
966	/* this formula differs from the one in periodic_reify because we do not always round up */	1357	/* this formula differs from the one in periodic_reify because we do not always round up */
967	if (w->interval)
968	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1358	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1359	}
969		1360
970	ev_start ((W)w, ++periodiccnt);	1361	ev_start (EV_A_ (W)w, ++periodiccnt);
971	array_needsize (periodics, periodicmax, periodiccnt, );	1362	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
972	periodics [periodiccnt - 1] = w;	1363	periodics [periodiccnt - 1] = w;
973	upheap ((WT *)periodics, periodiccnt - 1);	1364	upheap ((WT *)periodics, periodiccnt - 1);
974	}
975		1365
		1366	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1367	}
		1368
976	void	1369	void
977	ev_periodic_stop (struct ev_periodic *w)	1370	ev_periodic_stop (EV_P_ struct ev_periodic *w)
978	{	1371	{
979	ev_clear_pending ((W)w);	1372	ev_clear_pending (EV_A_ (W)w);
980	if (!ev_is_active (w))	1373	if (!ev_is_active (w))
981	return;	1374	return;
982		1375
		1376	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1377
983	if (w->active < periodiccnt--)	1378	if (((W)w)->active < periodiccnt--)
984	{	1379	{
985	periodics [w->active - 1] = periodics [periodiccnt];	1380	periodics [((W)w)->active - 1] = periodics [periodiccnt];
986	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1381	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
987	}	1382	}
988		1383
989	ev_stop ((W)w);	1384	ev_stop (EV_A_ (W)w);
990	}	1385	}
991		1386
992	void	1387	void
		1388	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1389	{
		1390	/* TODO: use adjustheap and recalculation */
		1391	ev_periodic_stop (EV_A_ w);
		1392	ev_periodic_start (EV_A_ w);
		1393	}
		1394
		1395	void
993	ev_signal_start (struct ev_signal *w)	1396	ev_idle_start (EV_P_ struct ev_idle *w)
994	{	1397	{
995	if (ev_is_active (w))	1398	if (ev_is_active (w))
996	return;	1399	return;
997		1400
		1401	ev_start (EV_A_ (W)w, ++idlecnt);
		1402	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1403	idles [idlecnt - 1] = w;
		1404	}
		1405
		1406	void
		1407	ev_idle_stop (EV_P_ struct ev_idle *w)
		1408	{
		1409	ev_clear_pending (EV_A_ (W)w);
		1410	if (ev_is_active (w))
		1411	return;
		1412
		1413	idles [((W)w)->active - 1] = idles [--idlecnt];
		1414	ev_stop (EV_A_ (W)w);
		1415	}
		1416
		1417	void
		1418	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1419	{
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	ev_start (EV_A_ (W)w, ++preparecnt);
		1424	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1425	prepares [preparecnt - 1] = w;
		1426	}
		1427
		1428	void
		1429	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1430	{
		1431	ev_clear_pending (EV_A_ (W)w);
		1432	if (ev_is_active (w))
		1433	return;
		1434
		1435	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1436	ev_stop (EV_A_ (W)w);
		1437	}
		1438
		1439	void
		1440	ev_check_start (EV_P_ struct ev_check *w)
		1441	{
		1442	if (ev_is_active (w))
		1443	return;
		1444
		1445	ev_start (EV_A_ (W)w, ++checkcnt);
		1446	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1447	checks [checkcnt - 1] = w;
		1448	}
		1449
		1450	void
		1451	ev_check_stop (EV_P_ struct ev_check *w)
		1452	{
		1453	ev_clear_pending (EV_A_ (W)w);
		1454	if (ev_is_active (w))
		1455	return;
		1456
		1457	checks [((W)w)->active - 1] = checks [--checkcnt];
		1458	ev_stop (EV_A_ (W)w);
		1459	}
		1460
		1461	#ifndef SA_RESTART
		1462	# define SA_RESTART 0
		1463	#endif
		1464
		1465	void
		1466	ev_signal_start (EV_P_ struct ev_signal *w)
		1467	{
		1468	#if EV_MULTIPLICITY
		1469	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1470	#endif
		1471	if (ev_is_active (w))
		1472	return;
		1473
998	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1474	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
999		1475
1000	ev_start ((W)w, 1);	1476	ev_start (EV_A_ (W)w, 1);
1001	array_needsize (signals, signalmax, w->signum, signals_init);	1477	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1002	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1478	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1003		1479
1004	if (!w->next)	1480	if (!((WL)w)->next)
1005	{	1481	{
		1482	#if WIN32
		1483	signal (w->signum, sighandler);
		1484	#else
1006	struct sigaction sa;	1485	struct sigaction sa;
1007	sa.sa_handler = sighandler;	1486	sa.sa_handler = sighandler;
1008	sigfillset (&sa.sa_mask);	1487	sigfillset (&sa.sa_mask);
1009	sa.sa_flags = 0;	1488	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1010	sigaction (w->signum, &sa, 0);	1489	sigaction (w->signum, &sa, 0);
		1490	#endif
1011	}	1491	}
1012	}	1492	}
1013		1493
1014	void	1494	void
1015	ev_signal_stop (struct ev_signal *w)	1495	ev_signal_stop (EV_P_ struct ev_signal *w)
1016	{	1496	{
1017	ev_clear_pending ((W)w);	1497	ev_clear_pending (EV_A_ (W)w);
1018	if (!ev_is_active (w))	1498	if (!ev_is_active (w))
1019	return;	1499	return;
1020		1500
1021	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1501	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1022	ev_stop ((W)w);	1502	ev_stop (EV_A_ (W)w);
1023		1503
1024	if (!signals [w->signum - 1].head)	1504	if (!signals [w->signum - 1].head)
1025	signal (w->signum, SIG_DFL);	1505	signal (w->signum, SIG_DFL);
1026	}	1506	}
1027		1507
1028	void	1508	void
1029	ev_idle_start (struct ev_idle *w)	1509	ev_child_start (EV_P_ struct ev_child *w)
1030	{	1510	{
		1511	#if EV_MULTIPLICITY
		1512	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1513	#endif
1031	if (ev_is_active (w))	1514	if (ev_is_active (w))
1032	return;	1515	return;
1033		1516
1034	ev_start ((W)w, ++idlecnt);	1517	ev_start (EV_A_ (W)w, 1);
1035	array_needsize (idles, idlemax, idlecnt, );	1518	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1036	idles [idlecnt - 1] = w;
1037	}	1519	}
1038		1520
1039	void	1521	void
1040	ev_idle_stop (struct ev_idle *w)	1522	ev_child_stop (EV_P_ struct ev_child *w)
1041	{	1523	{
1042	ev_clear_pending ((W)w);	1524	ev_clear_pending (EV_A_ (W)w);
1043	if (ev_is_active (w))	1525	if (ev_is_active (w))
1044	return;	1526	return;
1045		1527
1046	idles [w->active - 1] = idles [--idlecnt];
1047	ev_stop ((W)w);
1048	}
1049
1050	void
1051	ev_prepare_start (struct ev_prepare *w)
1052	{
1053	if (ev_is_active (w))
1054	return;
1055
1056	ev_start ((W)w, ++preparecnt);
1057	array_needsize (prepares, preparemax, preparecnt, );
1058	prepares [preparecnt - 1] = w;
1059	}
1060
1061	void
1062	ev_prepare_stop (struct ev_prepare *w)
1063	{
1064	ev_clear_pending ((W)w);
1065	if (ev_is_active (w))
1066	return;
1067
1068	prepares [w->active - 1] = prepares [--preparecnt];
1069	ev_stop ((W)w);
1070	}
1071
1072	void
1073	ev_check_start (struct ev_check *w)
1074	{
1075	if (ev_is_active (w))
1076	return;
1077
1078	ev_start ((W)w, ++checkcnt);
1079	array_needsize (checks, checkmax, checkcnt, );
1080	checks [checkcnt - 1] = w;
1081	}
1082
1083	void
1084	ev_check_stop (struct ev_check *w)
1085	{
1086	ev_clear_pending ((W)w);
1087	if (ev_is_active (w))
1088	return;
1089
1090	checks [w->active - 1] = checks [--checkcnt];
1091	ev_stop ((W)w);
1092	}
1093
1094	void
1095	ev_child_start (struct ev_child *w)
1096	{
1097	if (ev_is_active (w))
1098	return;
1099
1100	ev_start ((W)w, 1);
1101	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1102	}
1103
1104	void
1105	ev_child_stop (struct ev_child *w)
1106	{
1107	ev_clear_pending ((W)w);
1108	if (ev_is_active (w))
1109	return;
1110
1111	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1528	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	ev_stop ((W)w);	1529	ev_stop (EV_A_ (W)w);
1113	}	1530	}
1114		1531
1115	/*****************************************************************************/	1532	/*****************************************************************************/
1116		1533
1117	struct ev_once	1534	struct ev_once
…		…
1121	void (cb)(int revents, void arg);	1538	void (cb)(int revents, void arg);
1122	void *arg;	1539	void *arg;
1123	};	1540	};
1124		1541
1125	static void	1542	static void
1126	once_cb (struct ev_once *once, int revents)	1543	once_cb (EV_P_ struct ev_once *once, int revents)
1127	{	1544	{
1128	void (cb)(int revents, void arg) = once->cb;	1545	void (cb)(int revents, void arg) = once->cb;
1129	void *arg = once->arg;	1546	void *arg = once->arg;
1130		1547
1131	ev_io_stop (&once->io);	1548	ev_io_stop (EV_A_ &once->io);
1132	ev_timer_stop (&once->to);	1549	ev_timer_stop (EV_A_ &once->to);
1133	free (once);	1550	ev_free (once);
1134		1551
1135	cb (revents, arg);	1552	cb (revents, arg);
1136	}	1553	}
1137		1554
1138	static void	1555	static void
1139	once_cb_io (struct ev_io *w, int revents)	1556	once_cb_io (EV_P_ struct ev_io *w, int revents)
1140	{	1557	{
1141	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1558	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1142	}	1559	}
1143		1560
1144	static void	1561	static void
1145	once_cb_to (struct ev_timer *w, int revents)	1562	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1146	{	1563	{
1147	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1564	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1148	}	1565	}
1149		1566
1150	void	1567	void
1151	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1568	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1152	{	1569	{
1153	struct ev_once *once = malloc (sizeof (struct ev_once));	1570	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1154		1571
1155	if (!once)	1572	if (!once)
1156	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1573	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1157	else	1574	else
1158	{	1575	{
1159	once->cb = cb;	1576	once->cb = cb;
1160	once->arg = arg;	1577	once->arg = arg;
1161		1578
1162	ev_watcher_init (&once->io, once_cb_io);	1579	ev_init (&once->io, once_cb_io);
1163	if (fd >= 0)	1580	if (fd >= 0)
1164	{	1581	{
1165	ev_io_set (&once->io, fd, events);	1582	ev_io_set (&once->io, fd, events);
1166	ev_io_start (&once->io);	1583	ev_io_start (EV_A_ &once->io);
1167	}	1584	}
1168		1585
1169	ev_watcher_init (&once->to, once_cb_to);	1586	ev_init (&once->to, once_cb_to);
1170	if (timeout >= 0.)	1587	if (timeout >= 0.)
1171	{	1588	{
1172	ev_timer_set (&once->to, timeout, 0.);	1589	ev_timer_set (&once->to, timeout, 0.);
1173	ev_timer_start (&once->to);	1590	ev_timer_start (EV_A_ &once->to);
1174	}	1591	}
1175	}	1592	}
1176	}	1593	}
1177		1594
1178	/*****************************************************************************/
1179
1180	#if 0
1181
1182	struct ev_io wio;
1183
1184	static void
1185	sin_cb (struct ev_io *w, int revents)
1186	{
1187	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1188	}
1189
1190	static void
1191	ocb (struct ev_timer *w, int revents)
1192	{
1193	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1194	ev_timer_stop (w);
1195	ev_timer_start (w);
1196	}
1197
1198	static void
1199	scb (struct ev_signal *w, int revents)
1200	{
1201	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1202	ev_io_stop (&wio);
1203	ev_io_start (&wio);
1204	}
1205
1206	static void
1207	gcb (struct ev_signal *w, int revents)
1208	{
1209	fprintf (stderr, "generic %x\n", revents);
1210
1211	}
1212
1213	int main (void)
1214	{
1215	ev_init (0);
1216
1217	ev_io_init (&wio, sin_cb, 0, EV_READ);
1218	ev_io_start (&wio);
1219
1220	struct ev_timer t[10000];
1221
1222	#if 0
1223	int i;
1224	for (i = 0; i < 10000; ++i)
1225	{
1226	struct ev_timer *w = t + i;
1227	ev_watcher_init (w, ocb, i);
1228	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1229	ev_timer_start (w);
1230	if (drand48 () < 0.5)
1231	ev_timer_stop (w);
1232	}
1233	#endif
1234
1235	struct ev_timer t1;
1236	ev_timer_init (&t1, ocb, 5, 10);
1237	ev_timer_start (&t1);
1238
1239	struct ev_signal sig;
1240	ev_signal_init (&sig, scb, SIGQUIT);
1241	ev_signal_start (&sig);
1242
1243	struct ev_check cw;
1244	ev_check_init (&cw, gcb);
1245	ev_check_start (&cw);
1246
1247	struct ev_idle iw;
1248	ev_idle_init (&iw, gcb);
1249	ev_idle_start (&iw);
1250
1251	ev_loop (0);
1252
1253	return 0;
1254	}
1255
1256	#endif
1257
1258
1259
1260

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Comparing libev/ev.c (file contents): Revision 1.43 by root, Fri Nov 2 20:21:33 2007 UTC vs. Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.43 by root, Fri Nov 2 20:21:33 2007 UTC vs.
Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC