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

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 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>
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;
376	}	521	}
377		522
378	/*****************************************************************************/	523	/*****************************************************************************/
379		524
380	typedef struct	525	typedef struct
381	{	526	{
382	struct ev_signal *head;	527	WL head;
383	sig_atomic_t volatile gotsig;	528	sig_atomic_t volatile gotsig;
384	} ANSIG;	529	} ANSIG;
385		530
386	static ANSIG *signals;	531	static ANSIG *signals;
387	static int signalmax;	532	static int signalmax;
…		…
403	}	548	}
404		549
405	static void	550	static void
406	sighandler (int signum)	551	sighandler (int signum)
407	{	552	{
		553	#if WIN32
		554	signal (signum, sighandler);
		555	#endif
		556
408	signals [signum - 1].gotsig = 1;	557	signals [signum - 1].gotsig = 1;
409		558
410	if (!gotsig)	559	if (!gotsig)
411	{	560	{
		561	int old_errno = errno;
412	gotsig = 1;	562	gotsig = 1;
		563	#ifdef WIN32
		564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		565	#else
413	write (sigpipe [1], &signum, 1);	566	write (sigpipe [1], &signum, 1);
		567	#endif
		568	errno = old_errno;
414	}	569	}
415	}	570	}
416		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
417	static void	592	static void
418	sigcb (struct ev_io *iow, int revents)	593	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	594	{
420	struct ev_signal *w;
421	int signum;	595	int signum;
422		596
		597	#ifdef WIN32
		598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		599	#else
423	read (sigpipe [0], &revents, 1);	600	read (sigpipe [0], &revents, 1);
		601	#endif
424	gotsig = 0;	602	gotsig = 0;
425		603
426	for (signum = signalmax; signum--; )	604	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	605	if (signals [signum].gotsig)
428	{	606	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	}	607	}
435		608
436	static void	609	static void
437	siginit (void)	610	siginit (EV_P)
438	{	611	{
		612	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		615
442	/* rather than sort out wether we really need nb, set it */	616	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		619	#endif
445		620
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	621	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	622	ev_io_start (EV_A_ &sigev);
		623	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	624	}
449		625
450	/*****************************************************************************/	626	/*****************************************************************************/
451		627
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];	628	static struct ev_child *childs [PID_HASHSIZE];
		629
		630	#ifndef WIN32
		631
464	static struct ev_signal childev;	632	static struct ev_signal childev;
465		633
466	#ifndef WCONTINUED	634	#ifndef WCONTINUED
467	# define WCONTINUED 0	635	# define WCONTINUED 0
468	#endif	636	#endif
469		637
470	static void	638	static void
471	childcb (struct ev_signal *sw, int revents)	639	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	640	{
473	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	{
474	int pid, status;	656	int pid, status;
475		657
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	658	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	659	{
478	if (w->pid == pid \|\| !w->pid)	660	/* make sure we are called again until all childs have been reaped */
479	{	661	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	662
481	event ((W)w, EV_CHILD);	663	child_reap (EV_A_ sw, pid, pid, status);
482	}	664	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		665	}
483	}	666	}
		667
		668	#endif
484		669
485	/*****************************************************************************/	670	/*****************************************************************************/
486		671
		672	#if EV_USE_KQUEUE
		673	# include "ev_kqueue.c"
		674	#endif
487	#if EV_USE_EPOLL	675	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	676	# include "ev_epoll.c"
489	#endif	677	#endif
490	#if EV_USE_POLL	678	#if EV_USE_POLL
491	# include "ev_poll.c"	679	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	692	ev_version_minor (void)
505	{	693	{
506	return EV_VERSION_MINOR;	694	return EV_VERSION_MINOR;
507	}	695	}
508		696
509	/* 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 */
510	static int	698	static int
511	enable_secure ()	699	enable_secure (void)
512	{	700	{
		701	#ifdef WIN32
		702	return 0;
		703	#else
513	return getuid () != geteuid ()	704	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	705	\|\| getgid () != getegid ();
		706	#endif
515	}	707	}
516		708
517	int ev_init (int methods)	709	int
		710	ev_method (EV_P)
518	{	711	{
		712	return method;
		713	}
		714
		715	static void
		716	loop_init (EV_P_ int methods)
		717	{
519	if (!ev_method)	718	if (!method)
520	{	719	{
521	#if EV_USE_MONOTONIC	720	#if EV_USE_MONOTONIC
522	{	721	{
523	struct timespec ts;	722	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	724	have_monotonic = 1;
526	}	725	}
527	#endif	726	#endif
528		727
529	ev_now = ev_time ();	728	rt_now = ev_time ();
530	now = get_clock ();	729	mn_now = get_clock ();
531	now_floor = now;	730	now_floor = mn_now;
532	diff = ev_now - now;	731	rtmn_diff = rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		732
537	if (methods == EVMETHOD_AUTO)	733	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	734	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	735	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	736	else
541	methods = EVMETHOD_ANY;	737	methods = EVMETHOD_ANY;
542		738
543	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
		743	#if EV_USE_KQUEUE
		744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		745	#endif
544	#if EV_USE_EPOLL	746	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	748	#endif
547	#if EV_USE_POLL	749	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	751	#endif
550	#if EV_USE_SELECT	752	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	754	#endif
553		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
554	if (ev_method)	876	if (ev_method (EV_A))
555	{	877	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	878	siginit (EV_A);
558		879
		880	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	881	ev_signal_init (&childev, childcb, SIGCHLD);
		882	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	883	ev_signal_start (EV_A_ &childev);
		884	ev_unref (EV_A); /* child watcher should not keep loop alive */
		885	#endif
561	}	886	}
		887	else
		888	default_loop = 0;
562	}	889	}
563		890
564	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;
565	}	924	}
566		925
567	/*****************************************************************************/	926	/*****************************************************************************/
568		927
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	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
599	call_pending (void)	941	call_pending (EV_P)
600	{	942	{
601	int pri;	943	int pri;
602		944
603	for (pri = NUMPRI; pri--; )	945	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	946	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		949
608	if (p->w)	950	if (p->w)
609	{	951	{
610	p->w->pending = 0;	952	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	953	EV_CB_INVOKE (p->w, p->events);
612	}	954	}
613	}	955	}
614	}	956	}
615		957
616	static void	958	static void
617	timers_reify (void)	959	timers_reify (EV_P)
618	{	960	{
619	while (timercnt && timers [0]->at <= now)	961	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	962	{
621	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)));
622		966
623	/* first reschedule or stop timer */	967	/* first reschedule or stop timer */
624	if (w->repeat)	968	if (w->repeat)
625	{	969	{
626	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.));
627	w->at = now + w->repeat;	971	((WT)w)->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	972	downheap ((WT *)timers, timercnt, 0);
629	}	973	}
630	else	974	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		976
633	event ((W)w, EV_TIMEOUT);	977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	978	}
635	}	979	}
636		980
637	static void	981	static void
638	periodics_reify (void)	982	periodics_reify (EV_P)
639	{	983	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
641	{	985	{
642	struct ev_periodic *w = periodics [0];	986	struct ev_periodic *w = periodics [0];
643		987
		988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		989
644	/* first reschedule or stop timer */	990	/* first reschedule or stop timer */
645	if (w->interval)	991	if (w->reschedule_cb)
646	{	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	{
647	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;
648	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));
649	downheap ((WT *)periodics, periodiccnt, 0);	1002	downheap ((WT *)periodics, periodiccnt, 0);
650	}	1003	}
651	else	1004	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		1006
654	event ((W)w, EV_PERIODIC);	1007	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	1008	}
656	}	1009	}
657		1010
658	static void	1011	static void
659	periodics_reschedule (ev_tstamp diff)	1012	periodics_reschedule (EV_P)
660	{	1013	{
661	int i;	1014	int i;
662		1015
663	/* adjust periodics after time jump */	1016	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	1017	for (i = 0; i < periodiccnt; ++i)
665	{	1018	{
666	struct ev_periodic *w = periodics [i];	1019	struct ev_periodic *w = periodics [i];
667		1020
		1021	if (w->reschedule_cb)
		1022	((WT)w)->at = w->reschedule_cb (w, rt_now);
668	if (w->interval)	1023	else if (w->interval)
669	{
670	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;
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	}	1025	}
681	}
682		1026
683	static int	1027	/* now rebuild the heap */
		1028	for (i = periodiccnt >> 1; i--; )
		1029	downheap ((WT *)periodics, periodiccnt, i);
		1030	}
		1031
		1032	inline int
684	time_update_monotonic (void)	1033	time_update_monotonic (EV_P)
685	{	1034	{
686	now = get_clock ();	1035	mn_now = get_clock ();
687		1036
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1038	{
690	ev_now = now + diff;	1039	rt_now = rtmn_diff + mn_now;
691	return 0;	1040	return 0;
692	}	1041	}
693	else	1042	else
694	{	1043	{
695	now_floor = now;	1044	now_floor = mn_now;
696	ev_now = ev_time ();	1045	rt_now = ev_time ();
697	return 1;	1046	return 1;
698	}	1047	}
699	}	1048	}
700		1049
701	static void	1050	static void
702	time_update (void)	1051	time_update (EV_P)
703	{	1052	{
704	int i;	1053	int i;
705		1054
706	#if EV_USE_MONOTONIC	1055	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1056	if (expect_true (have_monotonic))
708	{	1057	{
709	if (time_update_monotonic ())	1058	if (time_update_monotonic (EV_A))
710	{	1059	{
711	ev_tstamp odiff = diff;	1060	ev_tstamp odiff = rtmn_diff;
712		1061
713	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 */
714	{	1063	{
715	diff = ev_now - now;	1064	rtmn_diff = rt_now - mn_now;
716		1065
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1067	return; /* all is well */
719		1068
720	ev_now = ev_time ();	1069	rt_now = ev_time ();
721	now = get_clock ();	1070	mn_now = get_clock ();
722	now_floor = now;	1071	now_floor = mn_now;
723	}	1072	}
724		1073
725	periodics_reschedule (diff - odiff);	1074	periodics_reschedule (EV_A);
726	/* 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) */
727	}	1077	}
728	}	1078	}
729	else	1079	else
730	#endif	1080	#endif
731	{	1081	{
732	ev_now = ev_time ();	1082	rt_now = ev_time ();
733		1083
734	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))
735	{	1085	{
736	periodics_reschedule (ev_now - now);	1086	periodics_reschedule (EV_A);
737		1087
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	1089	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1090	((WT)timers [i])->at += rt_now - mn_now;
741	}	1091	}
742		1092
743	now = ev_now;	1093	mn_now = rt_now;
744	}	1094	}
745	}	1095	}
746		1096
747	int ev_loop_done;	1097	void
		1098	ev_ref (EV_P)
		1099	{
		1100	++activecnt;
		1101	}
748		1102
		1103	void
		1104	ev_unref (EV_P)
		1105	{
		1106	--activecnt;
		1107	}
		1108
		1109	static int loop_done;
		1110
		1111	void
749	void ev_loop (int flags)	1112	ev_loop (EV_P_ int flags)
750	{	1113	{
751	double block;	1114	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		1116
754	do	1117	do
755	{	1118	{
756	/* queue check watchers (and execute them) */	1119	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1120	if (expect_false (preparecnt))
758	{	1121	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1123	call_pending (EV_A);
761	}	1124	}
762		1125
		1126	/* we might have forked, so reify kernel state if necessary */
		1127	if (expect_false (postfork))
		1128	loop_fork (EV_A);
		1129
763	/* update fd-related kernel structures */	1130	/* update fd-related kernel structures */
764	fd_reify ();	1131	fd_reify (EV_A);
765		1132
766	/* calculate blocking time */	1133	/* calculate blocking time */
767		1134
768	/* 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
769	always have timers, we just calculate it always */	1136	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1137	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1138	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1139	time_update_monotonic (EV_A);
773	else	1140	else
774	#endif	1141	#endif
775	{	1142	{
776	ev_now = ev_time ();	1143	rt_now = ev_time ();
777	now = ev_now;	1144	mn_now = rt_now;
778	}	1145	}
779		1146
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	1148	block = 0.;
782	else	1149	else
783	{	1150	{
784	block = MAX_BLOCKTIME;	1151	block = MAX_BLOCKTIME;
785		1152
786	if (timercnt)	1153	if (timercnt)
787	{	1154	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1156	if (block > to) block = to;
790	}	1157	}
791		1158
792	if (periodiccnt)	1159	if (periodiccnt)
793	{	1160	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
795	if (block > to) block = to;	1162	if (block > to) block = to;
796	}	1163	}
797		1164
798	if (block < 0.) block = 0.;	1165	if (block < 0.) block = 0.;
799	}	1166	}
800		1167
801	method_poll (block);	1168	method_poll (EV_A_ block);
802		1169
803	/* update ev_now, do magic */	1170	/* update rt_now, do magic */
804	time_update ();	1171	time_update (EV_A);
805		1172
806	/* queue pending timers and reschedule them */	1173	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1174	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	1175	periodics_reify (EV_A); /* absolute timers called first */
809		1176
810	/* queue idle watchers unless io or timers are pending */	1177	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1178	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1180
814	/* queue check watchers, to be executed first */	1181	/* queue check watchers, to be executed first */
815	if (checkcnt)	1182	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1184
818	call_pending ();	1185	call_pending (EV_A);
819	}	1186	}
820	while (!ev_loop_done);	1187	while (activecnt && !loop_done);
821		1188
822	if (ev_loop_done != 2)	1189	if (loop_done != 2)
823	ev_loop_done = 0;	1190	loop_done = 0;
		1191	}
		1192
		1193	void
		1194	ev_unloop (EV_P_ int how)
		1195	{
		1196	loop_done = how;
824	}	1197	}
825		1198
826	/*****************************************************************************/	1199	/*****************************************************************************/
827		1200
828	static void	1201	inline void
829	wlist_add (WL *head, WL elem)	1202	wlist_add (WL *head, WL elem)
830	{	1203	{
831	elem->next = *head;	1204	elem->next = *head;
832	*head = elem;	1205	*head = elem;
833	}	1206	}
834		1207
835	static void	1208	inline void
836	wlist_del (WL *head, WL elem)	1209	wlist_del (WL *head, WL elem)
837	{	1210	{
838	while (*head)	1211	while (*head)
839	{	1212	{
840	if (*head == elem)	1213	if (*head == elem)
…		…
845		1218
846	head = &(*head)->next;	1219	head = &(*head)->next;
847	}	1220	}
848	}	1221	}
849		1222
850	static void	1223	inline void
851	ev_clear_pending (W w)	1224	ev_clear_pending (EV_P_ W w)
852	{	1225	{
853	if (w->pending)	1226	if (w->pending)
854	{	1227	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1228	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1229	w->pending = 0;
857	}	1230	}
858	}	1231	}
859		1232
860	static void	1233	inline void
861	ev_start (W w, int active)	1234	ev_start (EV_P_ W w, int active)
862	{	1235	{
		1236	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1237	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1238
863	w->active = active;	1239	w->active = active;
		1240	ev_ref (EV_A);
864	}	1241	}
865		1242
866	static void	1243	inline void
867	ev_stop (W w)	1244	ev_stop (EV_P_ W w)
868	{	1245	{
		1246	ev_unref (EV_A);
869	w->active = 0;	1247	w->active = 0;
870	}	1248	}
871		1249
872	/*****************************************************************************/	1250	/*****************************************************************************/
873		1251
874	void	1252	void
875	ev_io_start (struct ev_io *w)	1253	ev_io_start (EV_P_ struct ev_io *w)
876	{	1254	{
877	int fd = w->fd;	1255	int fd = w->fd;
878		1256
879	if (ev_is_active (w))	1257	if (ev_is_active (w))
880	return;	1258	return;
881		1259
882	assert (("ev_io_start called with negative fd", fd >= 0));	1260	assert (("ev_io_start called with negative fd", fd >= 0));
883		1261
884	ev_start ((W)w, 1);	1262	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1263	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1264	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		1265
888	fd_change (fd);	1266	fd_change (EV_A_ fd);
889	}	1267	}
890		1268
891	void	1269	void
892	ev_io_stop (struct ev_io *w)	1270	ev_io_stop (EV_P_ struct ev_io *w)
893	{	1271	{
894	ev_clear_pending ((W)w);	1272	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	1273	if (!ev_is_active (w))
896	return;	1274	return;
897		1275
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	1277	ev_stop (EV_A_ (W)w);
900		1278
901	fd_change (w->fd);	1279	fd_change (EV_A_ w->fd);
902	}	1280	}
903		1281
904	void	1282	void
905	ev_timer_start (struct ev_timer *w)	1283	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	1284	{
907	if (ev_is_active (w))	1285	if (ev_is_active (w))
908	return;	1286	return;
909		1287
910	w->at += now;	1288	((WT)w)->at += mn_now;
911		1289
912	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.));
913		1291
914	ev_start ((W)w, ++timercnt);	1292	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
916	timers [timercnt - 1] = w;	1294	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	1295	upheap ((WT *)timers, timercnt - 1);
918	}
919		1296
		1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1298	}
		1299
920	void	1300	void
921	ev_timer_stop (struct ev_timer *w)	1301	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	1302	{
923	ev_clear_pending ((W)w);	1303	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	1304	if (!ev_is_active (w))
925	return;	1305	return;
926		1306
		1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1308
927	if (w->active < timercnt--)	1309	if (((W)w)->active < timercnt--)
928	{	1310	{
929	timers [w->active - 1] = timers [timercnt];	1311	timers [((W)w)->active - 1] = timers [timercnt];
930	downheap ((WT *)timers, timercnt, w->active - 1);	1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
931	}	1313	}
932		1314
933	w->at = w->repeat;	1315	((WT)w)->at = w->repeat;
934		1316
935	ev_stop ((W)w);	1317	ev_stop (EV_A_ (W)w);
936	}	1318	}
937		1319
938	void	1320	void
939	ev_timer_again (struct ev_timer *w)	1321	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	1322	{
941	if (ev_is_active (w))	1323	if (ev_is_active (w))
942	{	1324	{
943	if (w->repeat)	1325	if (w->repeat)
944	{	1326	{
945	w->at = now + w->repeat;	1327	((WT)w)->at = mn_now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
947	}	1329	}
948	else	1330	else
949	ev_timer_stop (w);	1331	ev_timer_stop (EV_A_ w);
950	}	1332	}
951	else if (w->repeat)	1333	else if (w->repeat)
952	ev_timer_start (w);	1334	ev_timer_start (EV_A_ w);
953	}	1335	}
954		1336
955	void	1337	void
956	ev_periodic_start (struct ev_periodic *w)	1338	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1339	{
958	if (ev_is_active (w))	1340	if (ev_is_active (w))
959	return;	1341	return;
960		1342
		1343	if (w->reschedule_cb)
		1344	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1345	else if (w->interval)
		1346	{
961	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.));
962
963	/* 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 */
964	if (w->interval)
965	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	}
966		1351
967	ev_start ((W)w, ++periodiccnt);	1352	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
969	periodics [periodiccnt - 1] = w;	1354	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1355	upheap ((WT *)periodics, periodiccnt - 1);
971	}
972		1356
		1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1358	}
		1359
973	void	1360	void
974	ev_periodic_stop (struct ev_periodic *w)	1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1362	{
976	ev_clear_pending ((W)w);	1363	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1364	if (!ev_is_active (w))
978	return;	1365	return;
979		1366
		1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1368
980	if (w->active < periodiccnt--)	1369	if (((W)w)->active < periodiccnt--)
981	{	1370	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
984	}	1373	}
985		1374
986	ev_stop ((W)w);	1375	ev_stop (EV_A_ (W)w);
987	}	1376	}
988		1377
989	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
990	ev_signal_start (struct ev_signal *w)	1386	ev_idle_start (EV_P_ struct ev_idle *w)
991	{	1387	{
992	if (ev_is_active (w))	1388	if (ev_is_active (w))
993	return;	1389	return;
994		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
995	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));
996		1465
997	ev_start ((W)w, 1);	1466	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1469
1001	if (!w->next)	1470	if (!((WL)w)->next)
1002	{	1471	{
		1472	#if WIN32
		1473	signal (w->signum, sighandler);
		1474	#else
1003	struct sigaction sa;	1475	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1476	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1477	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1478	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1479	sigaction (w->signum, &sa, 0);
		1480	#endif
1008	}	1481	}
1009	}	1482	}
1010		1483
1011	void	1484	void
1012	ev_signal_stop (struct ev_signal *w)	1485	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1486	{
1014	ev_clear_pending ((W)w);	1487	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1488	if (!ev_is_active (w))
1016	return;	1489	return;
1017		1490
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1492	ev_stop (EV_A_ (W)w);
1020		1493
1021	if (!signals [w->signum - 1].head)	1494	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1495	signal (w->signum, SIG_DFL);
1023	}	1496	}
1024		1497
1025	void	1498	void
1026	ev_idle_start (struct ev_idle *w)	1499	ev_child_start (EV_P_ struct ev_child *w)
1027	{	1500	{
		1501	#if EV_MULTIPLICITY
		1502	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1503	#endif
1028	if (ev_is_active (w))	1504	if (ev_is_active (w))
1029	return;	1505	return;
1030		1506
1031	ev_start ((W)w, ++idlecnt);	1507	ev_start (EV_A_ (W)w, 1);
1032	array_needsize (idles, idlemax, idlecnt, );	1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1033	idles [idlecnt - 1] = w;
1034	}	1509	}
1035		1510
1036	void	1511	void
1037	ev_idle_stop (struct ev_idle *w)	1512	ev_child_stop (EV_P_ struct ev_child *w)
1038	{	1513	{
1039	ev_clear_pending ((W)w);	1514	ev_clear_pending (EV_A_ (W)w);
1040	if (ev_is_active (w))	1515	if (ev_is_active (w))
1041	return;	1516	return;
1042		1517
1043	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);
1045	}
1046
1047	void
1048	ev_prepare_start (struct ev_prepare *w)
1049	{
1050	if (ev_is_active (w))
1051	return;
1052
1053	ev_start ((W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;
1056	}
1057
1058	void
1059	ev_prepare_stop (struct ev_prepare *w)
1060	{
1061	ev_clear_pending ((W)w);
1062	if (ev_is_active (w))
1063	return;
1064
1065	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);
1067	}
1068
1069	void
1070	ev_check_start (struct ev_check *w)
1071	{
1072	if (ev_is_active (w))
1073	return;
1074
1075	ev_start ((W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;
1078	}
1079
1080	void
1081	ev_check_stop (struct ev_check *w)
1082	{
1083	ev_clear_pending ((W)w);
1084	if (ev_is_active (w))
1085	return;
1086
1087	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);
1089	}
1090
1091	void
1092	ev_child_start (struct ev_child *w)
1093	{
1094	if (ev_is_active (w))
1095	return;
1096
1097	ev_start ((W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}
1100
1101	void
1102	ev_child_stop (struct ev_child *w)
1103	{
1104	ev_clear_pending ((W)w);
1105	if (ev_is_active (w))
1106	return;
1107
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1519	ev_stop (EV_A_ (W)w);
1110	}	1520	}
1111		1521
1112	/*****************************************************************************/	1522	/*****************************************************************************/
1113		1523
1114	struct ev_once	1524	struct ev_once
…		…
1118	void (cb)(int revents, void arg);	1528	void (cb)(int revents, void arg);
1119	void *arg;	1529	void *arg;
1120	};	1530	};
1121		1531
1122	static void	1532	static void
1123	once_cb (struct ev_once *once, int revents)	1533	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1534	{
1125	void (cb)(int revents, void arg) = once->cb;	1535	void (cb)(int revents, void arg) = once->cb;
1126	void *arg = once->arg;	1536	void *arg = once->arg;
1127		1537
1128	ev_io_stop (&once->io);	1538	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1539	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1540	ev_free (once);
1131		1541
1132	cb (revents, arg);	1542	cb (revents, arg);
1133	}	1543	}
1134		1544
1135	static void	1545	static void
1136	once_cb_io (struct ev_io *w, int revents)	1546	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1547	{
1138	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);
1139	}	1549	}
1140		1550
1141	static void	1551	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1552	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1553	{
1144	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);
1145	}	1555	}
1146		1556
1147	void	1557	void
1148	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)
1149	{	1559	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1560	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1151		1561
1152	if (!once)	1562	if (!once)
1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1154	else	1564	else
1155	{	1565	{
1156	once->cb = cb;	1566	once->cb = cb;
1157	once->arg = arg;	1567	once->arg = arg;
1158		1568
1159	ev_watcher_init (&once->io, once_cb_io);	1569	ev_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1570	if (fd >= 0)
1161	{	1571	{
1162	ev_io_set (&once->io, fd, events);	1572	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1573	ev_io_start (EV_A_ &once->io);
1164	}	1574	}
1165		1575
1166	ev_watcher_init (&once->to, once_cb_to);	1576	ev_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1577	if (timeout >= 0.)
1168	{	1578	{
1169	ev_timer_set (&once->to, timeout, 0.);	1579	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1580	ev_timer_start (EV_A_ &once->to);
1171	}	1581	}
1172	}	1582	}
1173	}	1583	}
1174		1584
1175	/*****************************************************************************/
1176
1177	#if 0
1178
1179	struct ev_io wio;
1180
1181	static void
1182	sin_cb (struct ev_io *w, int revents)
1183	{
1184	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1185	}
1186
1187	static void
1188	ocb (struct ev_timer *w, int revents)
1189	{
1190	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1191	ev_timer_stop (w);
1192	ev_timer_start (w);
1193	}
1194
1195	static void
1196	scb (struct ev_signal *w, int revents)
1197	{
1198	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1199	ev_io_stop (&wio);
1200	ev_io_start (&wio);
1201	}
1202
1203	static void
1204	gcb (struct ev_signal *w, int revents)
1205	{
1206	fprintf (stderr, "generic %x\n", revents);
1207
1208	}
1209
1210	int main (void)
1211	{
1212	ev_init (0);
1213
1214	ev_io_init (&wio, sin_cb, 0, EV_READ);
1215	ev_io_start (&wio);
1216
1217	struct ev_timer t[10000];
1218
1219	#if 0
1220	int i;
1221	for (i = 0; i < 10000; ++i)
1222	{
1223	struct ev_timer *w = t + i;
1224	ev_watcher_init (w, ocb, i);
1225	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1226	ev_timer_start (w);
1227	if (drand48 () < 0.5)
1228	ev_timer_stop (w);
1229	}
1230	#endif
1231
1232	struct ev_timer t1;
1233	ev_timer_init (&t1, ocb, 5, 10);
1234	ev_timer_start (&t1);
1235
1236	struct ev_signal sig;
1237	ev_signal_init (&sig, scb, SIGQUIT);
1238	ev_signal_start (&sig);
1239
1240	struct ev_check cw;
1241	ev_check_init (&cw, gcb);
1242	ev_check_start (&cw);
1243
1244	struct ev_idle iw;
1245	ev_idle_init (&iw, gcb);
1246	ev_idle_start (&iw);
1247
1248	ev_loop (0);
1249
1250	return 0;
1251	}
1252
1253	#endif
1254
1255
1256
1257

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Comparing libev/ev.c (file contents): Revision 1.42 by root, Fri Nov 2 20:05:05 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 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC