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Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.94 by root, Sun Nov 11 01:29:49 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# define EV_USE_MONOTONIC 1
		41	# define EV_USE_REALTIME 1
		42	# endif
		43
		44	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		45	# define EV_USE_SELECT 1
		46	# endif
		47
		48	# if HAVE_POLL && HAVE_POLL_H
		49	# define EV_USE_POLL 1
		50	# endif
		51
		52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		53	# define EV_USE_EPOLL 1
		54	# endif
		55
		56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		57	# define EV_USE_KQUEUE 1
		58	# endif
		59
33	#endif	60	#endif
34		61
35	#include <math.h>	62	#include <math.h>
36	#include <stdlib.h>	63	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	64	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	65	#include <stddef.h>
41		66
42	#include <stdio.h>	67	#include <stdio.h>
43		68
44	#include <assert.h>	69	#include <assert.h>
45	#include <errno.h>	70	#include <errno.h>
46	#include <sys/types.h>	71	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	72	#include <time.h>
50		73
		74	#include <signal.h>
		75
		76	#ifndef WIN32
		77	# include <unistd.h>
		78	# include <sys/time.h>
		79	# include <sys/wait.h>
		80	#endif
51	/**/	81	/**/
52		82
53	#ifndef EV_USE_MONOTONIC	83	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	84	# define EV_USE_MONOTONIC 1
55	#endif	85	#endif
56		86
57	#ifndef EV_USE_SELECT	87	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	88	# define EV_USE_SELECT 1
59	#endif	89	#endif
60		90
		91	#ifndef EV_USE_POLL
		92	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		93	#endif
		94
61	#ifndef EV_USE_EPOLL	95	#ifndef EV_USE_EPOLL
62	# define EV_USE_EPOLL 0	96	# define EV_USE_EPOLL 0
		97	#endif
		98
		99	#ifndef EV_USE_KQUEUE
		100	# define EV_USE_KQUEUE 0
		101	#endif
		102
		103	#ifndef EV_USE_WIN32
		104	# ifdef WIN32
		105	# define EV_USE_WIN32 0 /* it does not exist, use select */
		106	# undef EV_USE_SELECT
		107	# define EV_USE_SELECT 1
		108	# else
		109	# define EV_USE_WIN32 0
		110	# endif
63	#endif	111	#endif
64		112
65	#ifndef EV_USE_REALTIME	113	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	114	# define EV_USE_REALTIME 1
67	#endif	115	#endif
…		…
83	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	131	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
84	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	132	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
85	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	133	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
86	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	134	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
87		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
88	#include "ev.h"	139	# include "ev.h"
		140	#endif
89		141
90	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
91	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
92	# define inline inline	144	# define inline inline
93	#else	145	#else
…		…
96	#endif	148	#endif
97		149
98	#define expect_false(expr) expect ((expr) != 0, 0)	150	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	151	#define expect_true(expr) expect ((expr) != 0, 1)
100		152
		153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		155
101	typedef struct ev_watcher *W;	156	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
104		159
105	static ev_tstamp now_floor, now, diff; /* monotonic clock */	160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		161
		162	#include "ev_win32.c"
		163
		164	/*****************************************************************************/
		165
		166	static void (*syserr_cb)(const char *msg);
		167
		168	void ev_set_syserr_cb (void (*cb)(const char *msg))
		169	{
		170	syserr_cb = cb;
		171	}
		172
		173	static void
		174	syserr (const char *msg)
		175	{
		176	if (!msg)
		177	msg = "(libev) system error";
		178
		179	if (syserr_cb)
		180	syserr_cb (msg);
		181	else
		182	{
		183	perror (msg);
		184	abort ();
		185	}
		186	}
		187
		188	static void *(*alloc)(void *ptr, long size);
		189
		190	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		191	{
		192	alloc = cb;
		193	}
		194
		195	static void *
		196	ev_realloc (void *ptr, long size)
		197	{
		198	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		199
		200	if (!ptr && size)
		201	{
		202	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		203	abort ();
		204	}
		205
		206	return ptr;
		207	}
		208
		209	#define ev_malloc(size) ev_realloc (0, (size))
		210	#define ev_free(ptr) ev_realloc ((ptr), 0)
		211
		212	/*****************************************************************************/
		213
		214	typedef struct
		215	{
		216	WL head;
		217	unsigned char events;
		218	unsigned char reify;
		219	} ANFD;
		220
		221	typedef struct
		222	{
		223	W w;
		224	int events;
		225	} ANPENDING;
		226
		227	#if EV_MULTIPLICITY
		228
		229	struct ev_loop
		230	{
		231	ev_tstamp ev_rt_now;
		232	#define VAR(name,decl) decl;
		233	#include "ev_vars.h"
		234	#undef VAR
		235	};
		236	#include "ev_wrap.h"
		237
		238	struct ev_loop default_loop_struct;
		239	static struct ev_loop *default_loop;
		240
		241	#else
		242
106	ev_tstamp ev_now;	243	ev_tstamp ev_rt_now;
107	int ev_method;	244	#define VAR(name,decl) static decl;
		245	#include "ev_vars.h"
		246	#undef VAR
108		247
109	static int have_monotonic; /* runtime */	248	static int default_loop;
110		249
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	250	#endif
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114		251
115	/*****************************************************************************/	252	/*****************************************************************************/
116		253
117	ev_tstamp	254	ev_tstamp
118	ev_time (void)	255	ev_time (void)
…		…
126	gettimeofday (&tv, 0);	263	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	264	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	265	#endif
129	}	266	}
130		267
131	static ev_tstamp	268	inline ev_tstamp
132	get_clock (void)	269	get_clock (void)
133	{	270	{
134	#if EV_USE_MONOTONIC	271	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	272	if (expect_true (have_monotonic))
136	{	273	{
…		…
141	#endif	278	#endif
142		279
143	return ev_time ();	280	return ev_time ();
144	}	281	}
145		282
		283	#if EV_MULTIPLICITY
		284	ev_tstamp
		285	ev_now (EV_P)
		286	{
		287	return ev_rt_now;
		288	}
		289	#endif
		290
146	#define array_roundsize(base,n) ((n) | 4 & ~3)	291	#define array_roundsize(type,n) ((n) | 4 & ~3)
147		292
148	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
149	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
150	{ \	295	{ \
151	int newcnt = cur; \	296	int newcnt = cur; \
152	do \	297	do \
153	{ \	298	{ \
154	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
155	} \	300	} \
156	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
157	\	302	\
158	base = realloc (base, sizeof (*base) * (newcnt)); \	303	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
159	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
160	cur = newcnt; \	305	cur = newcnt; \
161	}	306	}
		307
		308	#define array_slim(type,stem) \
		309	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		310	{ \
		311	stem ## max = array_roundsize (stem ## cnt >> 1); \
		312	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
		313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		314	}
		315
		316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		318	#define array_free_microshit(stem) \
		319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		320
		321	#define array_free(stem, idx) \
		322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
162		323
163	/*****************************************************************************/	324	/*****************************************************************************/
164
165	typedef struct
166	{
167	struct ev_io *head;
168	unsigned char events;
169	unsigned char reify;
170	} ANFD;
171
172	static ANFD *anfds;
173	static int anfdmax;
174		325
175	static void	326	static void
176	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
177	{	328	{
178	while (count--)	329	while (count--)
…		…
183		334
184	++base;	335	++base;
185	}	336	}
186	}	337	}
187		338
188	typedef struct	339	void
		340	ev_feed_event (EV_P_ void *w, int revents)
189	{	341	{
190	W w;	342	W w_ = (W)w;
191	int events;
192	} ANPENDING;
193		343
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void
198	event (W w, int events)
199	{
200	if (w->pending)	344	if (w_->pending)
201	{	345	{
202	pendings [w->pending - 1].events |= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
203	return;	347	return;
204	}	348	}
205		349
206	w->pending = ++pendingcnt;	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
208	pendings [pendingcnt - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
209	pendings [pendingcnt - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
210	}	354	}
211		355
212	static void	356	static void
213	queue_events (W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	358	{
215	int i;	359	int i;
216		360
217	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
219	}	363	}
220		364
221	static void	365	inline void
222	fd_event (int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
223	{	367	{
224	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	369	struct ev_io *w;
226		370
227	for (w = anfd->head; w; w = w->next)	371	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
228	{	372	{
229	int ev = w->events & events;	373	int ev = w->events & revents;
230		374
231	if (ev)	375	if (ev)
232	event ((W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
233	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
234	}	384	}
235		385
236	/*****************************************************************************/	386	/*****************************************************************************/
237		387
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	388	static void
242	fd_reify (void)	389	fd_reify (EV_P)
243	{	390	{
244	int i;	391	int i;
245		392
246	for (i = 0; i < fdchangecnt; ++i)	393	for (i = 0; i < fdchangecnt; ++i)
247	{	394	{
…		…
249	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	397	struct ev_io *w;
251		398
252	int events = 0;	399	int events = 0;
253		400
254	for (w = anfd->head; w; w = w->next)	401	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
255	events |= w->events;	402	events |= w->events;
256		403
257	anfd->reify = 0;	404	anfd->reify = 0;
258		405
259	if (anfd->events != events)
260	{
261	method_modify (fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	407	anfd->events = events;
263	}
264	}	408	}
265		409
266	fdchangecnt = 0;	410	fdchangecnt = 0;
267	}	411	}
268		412
269	static void	413	static void
270	fd_change (int fd)	414	fd_change (EV_P_ int fd)
271	{	415	{
272	if (anfds [fd].reify || fdchangecnt < 0)	416	if (anfds [fd].reify)
273	return;	417	return;
274		418
275	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
276		420
277	++fdchangecnt;	421	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
279	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
280	}	424	}
281		425
		426	static void
		427	fd_kill (EV_P_ int fd)
		428	{
		429	struct ev_io *w;
		430
		431	while ((w = (struct ev_io *)anfds [fd].head))
		432	{
		433	ev_io_stop (EV_A_ w);
		434	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
		435	}
		436	}
		437
		438	static int
		439	fd_valid (int fd)
		440	{
		441	#ifdef WIN32
		442	return !!win32_get_osfhandle (fd);
		443	#else
		444	return fcntl (fd, F_GETFD) != -1;
		445	#endif
		446	}
		447
282	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
283	static void	449	static void
284	fd_recheck (void)	450	fd_ebadf (EV_P)
285	{	451	{
286	int fd;	452	int fd;
287		453
288	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	455	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
291	while (anfds [fd].head)	457	fd_kill (EV_A_ fd);
		458	}
		459
		460	/* called on ENOMEM in select/poll to kill some fds and retry */
		461	static void
		462	fd_enomem (EV_P)
		463	{
		464	int fd;
		465
		466	for (fd = anfdmax; fd--; )
		467	if (anfds [fd].events)
292	{	468	{
293	ev_io_stop (anfds [fd].head);	469	fd_kill (EV_A_ fd);
294	event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE);	470	return;
295	}	471	}
		472	}
		473
		474	/* usually called after fork if method needs to re-arm all fds from scratch */
		475	static void
		476	fd_rearm_all (EV_P)
		477	{
		478	int fd;
		479
		480	/* this should be highly optimised to not do anything but set a flag */
		481	for (fd = 0; fd < anfdmax; ++fd)
		482	if (anfds [fd].events)
		483	{
		484	anfds [fd].events = 0;
		485	fd_change (EV_A_ fd);
		486	}
296	}	487	}
297		488
298	/*****************************************************************************/	489	/*****************************************************************************/
299		490
300	static struct ev_timer **timers;
301	static int timermax, timercnt;
302
303	static struct ev_periodic **periodics;
304	static int periodicmax, periodiccnt;
305
306	static void	491	static void
307	upheap (WT *timers, int k)	492	upheap (WT *heap, int k)
308	{	493	{
309	WT w = timers [k];	494	WT w = heap [k];
310		495
311	while (k && timers [k >> 1]->at > w->at)	496	while (k && heap [k >> 1]->at > w->at)
312	{	497	{
313	timers [k] = timers [k >> 1];	498	heap [k] = heap [k >> 1];
314	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
315	k >>= 1;	500	k >>= 1;
316	}	501	}
317		502
318	timers [k] = w;	503	heap [k] = w;
319	timers [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
320		505
321	}	506	}
322		507
323	static void	508	static void
324	downheap (WT *timers, int N, int k)	509	downheap (WT *heap, int N, int k)
325	{	510	{
326	WT w = timers [k];	511	WT w = heap [k];
327		512
328	while (k < (N >> 1))	513	while (k < (N >> 1))
329	{	514	{
330	int j = k << 1;	515	int j = k << 1;
331		516
332	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	517	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
333	++j;	518	++j;
334		519
335	if (w->at <= timers [j]->at)	520	if (w->at <= heap [j]->at)
336	break;	521	break;
337		522
338	timers [k] = timers [j];	523	heap [k] = heap [j];
339	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
340	k = j;	525	k = j;
341	}	526	}
342		527
343	timers [k] = w;	528	heap [k] = w;
344	timers [k]->active = k + 1;	529	((W)heap [k])->active = k + 1;
		530	}
		531
		532	inline void
		533	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		534	{
		535	ev_tstamp old_at = heap [k]->at;
		536	heap [k]->at = at;
		537
		538	if (old_at < at)
		539	downheap (heap, N, k);
		540	else
		541	upheap (heap, k);
345	}	542	}
346		543
347	/*****************************************************************************/	544	/*****************************************************************************/
348		545
349	typedef struct	546	typedef struct
350	{	547	{
351	struct ev_signal *head;	548	WL head;
352	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
353	} ANSIG;	550	} ANSIG;
354		551
355	static ANSIG *signals;	552	static ANSIG *signals;
356	static int signalmax;	553	static int signalmax;
…		…
372	}	569	}
373		570
374	static void	571	static void
375	sighandler (int signum)	572	sighandler (int signum)
376	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
377	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
378		579
379	if (!gotsig)	580	if (!gotsig)
380	{	581	{
		582	int old_errno = errno;
381	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
382	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
		589	errno = old_errno;
383	}	590	}
384	}	591	}
385		592
		593	void
		594	ev_feed_signal_event (EV_P_ int signum)
		595	{
		596	WL w;
		597
		598	#if EV_MULTIPLICITY
		599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		600	#endif
		601
		602	--signum;
		603
		604	if (signum < 0 || signum >= signalmax)
		605	return;
		606
		607	signals [signum].gotsig = 0;
		608
		609	for (w = signals [signum].head; w; w = w->next)
		610	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		611	}
		612
386	static void	613	static void
387	sigcb (struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	615	{
389	struct ev_signal *w;
390	int signum;	616	int signum;
391		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
392	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
393	gotsig = 0;	623	gotsig = 0;
394		624
395	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
396	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
397	{	627	ev_feed_signal_event (EV_A_ signum + 1);
398	signals [signum].gotsig = 0;
399
400	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);
402	}
403	}	628	}
404		629
405	static void	630	static void
406	siginit (void)	631	siginit (EV_P)
407	{	632	{
		633	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		636
411	/* rather than sort out wether we really need nb, set it */	637	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		640	#endif
414		641
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	642	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	643	ev_io_start (EV_A_ &sigev);
		644	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	645	}
418		646
419	/*****************************************************************************/	647	/*****************************************************************************/
420		648
421	static struct ev_idle **idles;
422	static int idlemax, idlecnt;
423
424	static struct ev_prepare **prepares;
425	static int preparemax, preparecnt;
426
427	static struct ev_check **checks;
428	static int checkmax, checkcnt;
429
430	/*****************************************************************************/
431
432	static struct ev_child *childs [PID_HASHSIZE];	649	static struct ev_child *childs [PID_HASHSIZE];
		650
		651	#ifndef WIN32
		652
433	static struct ev_signal childev;	653	static struct ev_signal childev;
434		654
435	#ifndef WCONTINUED	655	#ifndef WCONTINUED
436	# define WCONTINUED 0	656	# define WCONTINUED 0
437	#endif	657	#endif
438		658
439	static void	659	static void
440	childcb (struct ev_signal *sw, int revents)	660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	661	{
442	struct ev_child *w;	662	struct ev_child *w;
		663
		664	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
		665	if (w->pid == pid || !w->pid)
		666	{
		667	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
		668	w->rpid = pid;
		669	w->rstatus = status;
		670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		671	}
		672	}
		673
		674	static void
		675	childcb (EV_P_ struct ev_signal *sw, int revents)
		676	{
443	int pid, status;	677	int pid, status;
444		678
445	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	679	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	680	{
447	if (w->pid == pid || !w->pid)	681	/* make sure we are called again until all childs have been reaped */
448	{	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	683
450	event ((W)w, EV_CHILD);	684	child_reap (EV_A_ sw, pid, pid, status);
451	}	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		686	}
452	}	687	}
		688
		689	#endif
453		690
454	/*****************************************************************************/	691	/*****************************************************************************/
455		692
		693	#if EV_USE_KQUEUE
		694	# include "ev_kqueue.c"
		695	#endif
456	#if EV_USE_EPOLL	696	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	697	# include "ev_epoll.c"
458	#endif	698	#endif
		699	#if EV_USE_POLL
		700	# include "ev_poll.c"
		701	#endif
459	#if EV_USE_SELECT	702	#if EV_USE_SELECT
460	# include "ev_select.c"	703	# include "ev_select.c"
461	#endif	704	#endif
462		705
463	int	706	int
…		…
470	ev_version_minor (void)	713	ev_version_minor (void)
471	{	714	{
472	return EV_VERSION_MINOR;	715	return EV_VERSION_MINOR;
473	}	716	}
474		717
475	int ev_init (int flags)	718	/* return true if we are running with elevated privileges and should ignore env variables */
		719	static int
		720	enable_secure (void)
476	{	721	{
		722	#ifdef WIN32
		723	return 0;
		724	#else
		725	return getuid () != geteuid ()
		726	|| getgid () != getegid ();
		727	#endif
		728	}
		729
		730	int
		731	ev_method (EV_P)
		732	{
		733	return method;
		734	}
		735
		736	static void
		737	loop_init (EV_P_ int methods)
		738	{
477	if (!ev_method)	739	if (!method)
478	{	740	{
479	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
480	{	742	{
481	struct timespec ts;	743	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	745	have_monotonic = 1;
484	}	746	}
485	#endif	747	#endif
486		748
487	ev_now = ev_time ();	749	ev_rt_now = ev_time ();
488	now = get_clock ();	750	mn_now = get_clock ();
489	now_floor = now;	751	now_floor = mn_now;
490	diff = ev_now - now;	752	rtmn_diff = ev_rt_now - mn_now;
491		753
492	if (pipe (sigpipe))	754	if (methods == EVMETHOD_AUTO)
493	return 0;	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
494		756	methods = atoi (getenv ("LIBEV_METHODS"));
		757	else
495	ev_method = EVMETHOD_NONE;	758	methods = EVMETHOD_ANY;
		759
		760	method = 0;
		761	#if EV_USE_WIN32
		762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		763	#endif
		764	#if EV_USE_KQUEUE
		765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		766	#endif
496	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		769	#endif
		770	#if EV_USE_POLL
		771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	772	#endif
499	#if EV_USE_SELECT	773	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	775	#endif
502		776
		777	ev_init (&sigev, sigcb);
		778	ev_set_priority (&sigev, EV_MAXPRI);
		779	}
		780	}
		781
		782	void
		783	loop_destroy (EV_P)
		784	{
		785	int i;
		786
		787	#if EV_USE_WIN32
		788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		789	#endif
		790	#if EV_USE_KQUEUE
		791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		792	#endif
		793	#if EV_USE_EPOLL
		794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		795	#endif
		796	#if EV_USE_POLL
		797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		798	#endif
		799	#if EV_USE_SELECT
		800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		801	#endif
		802
		803	for (i = NUMPRI; i--; )
		804	array_free (pending, [i]);
		805
		806	/* have to use the microsoft-never-gets-it-right macro */
		807	array_free_microshit (fdchange);
		808	array_free_microshit (timer);
		809	#if EV_PERIODICS
		810	array_free_microshit (periodic);
		811	#endif
		812	array_free_microshit (idle);
		813	array_free_microshit (prepare);
		814	array_free_microshit (check);
		815
		816	method = 0;
		817	}
		818
		819	static void
		820	loop_fork (EV_P)
		821	{
		822	#if EV_USE_EPOLL
		823	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		824	#endif
		825	#if EV_USE_KQUEUE
		826	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		827	#endif
		828
		829	if (ev_is_active (&sigev))
		830	{
		831	/* default loop */
		832
		833	ev_ref (EV_A);
		834	ev_io_stop (EV_A_ &sigev);
		835	close (sigpipe [0]);
		836	close (sigpipe [1]);
		837
		838	while (pipe (sigpipe))
		839	syserr ("(libev) error creating pipe");
		840
		841	siginit (EV_A);
		842	}
		843
		844	postfork = 0;
		845	}
		846
		847	#if EV_MULTIPLICITY
		848	struct ev_loop *
		849	ev_loop_new (int methods)
		850	{
		851	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
		852
		853	memset (loop, 0, sizeof (struct ev_loop));
		854
		855	loop_init (EV_A_ methods);
		856
		857	if (ev_method (EV_A))
		858	return loop;
		859
		860	return 0;
		861	}
		862
		863	void
		864	ev_loop_destroy (EV_P)
		865	{
		866	loop_destroy (EV_A);
		867	ev_free (loop);
		868	}
		869
		870	void
		871	ev_loop_fork (EV_P)
		872	{
		873	postfork = 1;
		874	}
		875
		876	#endif
		877
		878	#if EV_MULTIPLICITY
		879	struct ev_loop *
		880	#else
		881	int
		882	#endif
		883	ev_default_loop (int methods)
		884	{
		885	if (sigpipe [0] == sigpipe [1])
		886	if (pipe (sigpipe))
		887	return 0;
		888
		889	if (!default_loop)
		890	{
		891	#if EV_MULTIPLICITY
		892	struct ev_loop *loop = default_loop = &default_loop_struct;
		893	#else
		894	default_loop = 1;
		895	#endif
		896
		897	loop_init (EV_A_ methods);
		898
503	if (ev_method)	899	if (ev_method (EV_A))
504	{	900	{
505	ev_watcher_init (&sigev, sigcb);
506	siginit ();	901	siginit (EV_A);
507		902
		903	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
		905	ev_set_priority (&childev, EV_MAXPRI);
509	ev_signal_start (&childev);	906	ev_signal_start (EV_A_ &childev);
		907	ev_unref (EV_A); /* child watcher should not keep loop alive */
		908	#endif
510	}	909	}
		910	else
		911	default_loop = 0;
511	}	912	}
512		913
513	return ev_method;	914	return default_loop;
		915	}
		916
		917	void
		918	ev_default_destroy (void)
		919	{
		920	#if EV_MULTIPLICITY
		921	struct ev_loop *loop = default_loop;
		922	#endif
		923
		924	#ifndef WIN32
		925	ev_ref (EV_A); /* child watcher */
		926	ev_signal_stop (EV_A_ &childev);
		927	#endif
		928
		929	ev_ref (EV_A); /* signal watcher */
		930	ev_io_stop (EV_A_ &sigev);
		931
		932	close (sigpipe [0]); sigpipe [0] = 0;
		933	close (sigpipe [1]); sigpipe [1] = 0;
		934
		935	loop_destroy (EV_A);
		936	}
		937
		938	void
		939	ev_default_fork (void)
		940	{
		941	#if EV_MULTIPLICITY
		942	struct ev_loop *loop = default_loop;
		943	#endif
		944
		945	if (method)
		946	postfork = 1;
514	}	947	}
515		948
516	/*****************************************************************************/	949	/*****************************************************************************/
517		950
518	void
519	ev_fork_prepare (void)
520	{
521	/* nop */
522	}
523
524	void
525	ev_fork_parent (void)
526	{
527	/* nop */
528	}
529
530	void
531	ev_fork_child (void)
532	{
533	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();
536	#endif
537
538	ev_io_stop (&sigev);
539	close (sigpipe [0]);
540	close (sigpipe [1]);
541	pipe (sigpipe);
542	siginit ();
543	}
544
545	/*****************************************************************************/
546
547	static void	951	static int
		952	any_pending (EV_P)
		953	{
		954	int pri;
		955
		956	for (pri = NUMPRI; pri--; )
		957	if (pendingcnt [pri])
		958	return 1;
		959
		960	return 0;
		961	}
		962
		963	static void
548	call_pending (void)	964	call_pending (EV_P)
549	{	965	{
		966	int pri;
		967
		968	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	969	while (pendingcnt [pri])
551	{	970	{
552	ANPENDING *p = pendings + --pendingcnt;	971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		972
554	if (p->w)	973	if (p->w)
555	{	974	{
556	p->w->pending = 0;	975	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	976	EV_CB_INVOKE (p->w, p->events);
558	}	977	}
559	}	978	}
560	}	979	}
561		980
562	static void	981	static void
563	timers_reify (void)	982	timers_reify (EV_P)
564	{	983	{
565	while (timercnt && timers [0]->at <= now)	984	while (timercnt && ((WT)timers [0])->at <= mn_now)
566	{	985	{
567	struct ev_timer *w = timers [0];	986	struct ev_timer *w = timers [0];
		987
		988	assert (("inactive timer on timer heap detected", ev_is_active (w)));
568		989
569	/* first reschedule or stop timer */	990	/* first reschedule or stop timer */
570	if (w->repeat)	991	if (w->repeat)
571	{	992	{
572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	993	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		994
573	w->at = now + w->repeat;	995	((WT)w)->at += w->repeat;
		996	if (((WT)w)->at < mn_now)
		997	((WT)w)->at = mn_now;
		998
574	downheap ((WT *)timers, timercnt, 0);	999	downheap ((WT *)timers, timercnt, 0);
575	}	1000	}
576	else	1001	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	1002	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		1003
579	event ((W)w, EV_TIMEOUT);	1004	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
580	}	1005	}
581	}	1006	}
582		1007
		1008	#if EV_PERIODICS
583	static void	1009	static void
584	periodics_reify (void)	1010	periodics_reify (EV_P)
585	{	1011	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	1012	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
587	{	1013	{
588	struct ev_periodic *w = periodics [0];	1014	struct ev_periodic *w = periodics [0];
589		1015
		1016	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1017
590	/* first reschedule or stop timer */	1018	/* first reschedule or stop timer */
591	if (w->interval)	1019	if (w->reschedule_cb)
592	{	1020	{
		1021	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1022
		1023	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1024	downheap ((WT *)periodics, periodiccnt, 0);
		1025	}
		1026	else if (w->interval)
		1027	{
593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1028	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
594	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1029	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
595	downheap ((WT *)periodics, periodiccnt, 0);	1030	downheap ((WT *)periodics, periodiccnt, 0);
596	}	1031	}
597	else	1032	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	1033	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		1034
600	event ((W)w, EV_PERIODIC);	1035	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
601	}	1036	}
602	}	1037	}
603		1038
604	static void	1039	static void
605	periodics_reschedule (ev_tstamp diff)	1040	periodics_reschedule (EV_P)
606	{	1041	{
607	int i;	1042	int i;
608		1043
609	/* adjust periodics after time jump */	1044	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	1045	for (i = 0; i < periodiccnt; ++i)
611	{	1046	{
612	struct ev_periodic *w = periodics [i];	1047	struct ev_periodic *w = periodics [i];
613		1048
		1049	if (w->reschedule_cb)
		1050	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
614	if (w->interval)	1051	else if (w->interval)
615	{
616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1052	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
617
618	if (fabs (diff) >= 1e-4)
619	{
620	ev_periodic_stop (w);
621	ev_periodic_start (w);
622
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}
625	}
626	}	1053	}
627	}
628		1054
629	static int	1055	/* now rebuild the heap */
		1056	for (i = periodiccnt >> 1; i--; )
		1057	downheap ((WT *)periodics, periodiccnt, i);
		1058	}
		1059	#endif
		1060
		1061	inline int
630	time_update_monotonic (void)	1062	time_update_monotonic (EV_P)
631	{	1063	{
632	now = get_clock ();	1064	mn_now = get_clock ();
633		1065
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1066	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	1067	{
636	ev_now = now + diff;	1068	ev_rt_now = rtmn_diff + mn_now;
637	return 0;	1069	return 0;
638	}	1070	}
639	else	1071	else
640	{	1072	{
641	now_floor = now;	1073	now_floor = mn_now;
642	ev_now = ev_time ();	1074	ev_rt_now = ev_time ();
643	return 1;	1075	return 1;
644	}	1076	}
645	}	1077	}
646		1078
647	static void	1079	static void
648	time_update (void)	1080	time_update (EV_P)
649	{	1081	{
650	int i;	1082	int i;
651		1083
652	#if EV_USE_MONOTONIC	1084	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	1085	if (expect_true (have_monotonic))
654	{	1086	{
655	if (time_update_monotonic ())	1087	if (time_update_monotonic (EV_A))
656	{	1088	{
657	ev_tstamp odiff = diff;	1089	ev_tstamp odiff = rtmn_diff;
658		1090
659	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1091	for (i = 4; --i; ) /* loop a few times, before making important decisions */
660	{	1092	{
661	diff = ev_now - now;	1093	rtmn_diff = ev_rt_now - mn_now;
662		1094
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1095	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
664	return; /* all is well */	1096	return; /* all is well */
665		1097
666	ev_now = ev_time ();	1098	ev_rt_now = ev_time ();
667	now = get_clock ();	1099	mn_now = get_clock ();
668	now_floor = now;	1100	now_floor = mn_now;
669	}	1101	}
670		1102
		1103	# if EV_PERIODICS
671	periodics_reschedule (diff - odiff);	1104	periodics_reschedule (EV_A);
		1105	# endif
672	/* no timer adjustment, as the monotonic clock doesn't jump */	1106	/* no timer adjustment, as the monotonic clock doesn't jump */
		1107	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
673	}	1108	}
674	}	1109	}
675	else	1110	else
676	#endif	1111	#endif
677	{	1112	{
678	ev_now = ev_time ();	1113	ev_rt_now = ev_time ();
679		1114
680	if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1115	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
681	{	1116	{
		1117	#if EV_PERIODICS
682	periodics_reschedule (ev_now - now);	1118	periodics_reschedule (EV_A);
		1119	#endif
683		1120
684	/* adjust timers. this is easy, as the offset is the same for all */	1121	/* adjust timers. this is easy, as the offset is the same for all */
685	for (i = 0; i < timercnt; ++i)	1122	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	1123	((WT)timers [i])->at += ev_rt_now - mn_now;
687	}	1124	}
688		1125
689	now = ev_now;	1126	mn_now = ev_rt_now;
690	}	1127	}
691	}	1128	}
692		1129
693	int ev_loop_done;	1130	void
		1131	ev_ref (EV_P)
		1132	{
		1133	++activecnt;
		1134	}
694		1135
		1136	void
		1137	ev_unref (EV_P)
		1138	{
		1139	--activecnt;
		1140	}
		1141
		1142	static int loop_done;
		1143
		1144	void
695	void ev_loop (int flags)	1145	ev_loop (EV_P_ int flags)
696	{	1146	{
697	double block;	1147	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1148	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
699		1149
700	do	1150	do
701	{	1151	{
702	/* queue check watchers (and execute them) */	1152	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	1153	if (expect_false (preparecnt))
704	{	1154	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1155	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	1156	call_pending (EV_A);
707	}	1157	}
708		1158
		1159	/* we might have forked, so reify kernel state if necessary */
		1160	if (expect_false (postfork))
		1161	loop_fork (EV_A);
		1162
709	/* update fd-related kernel structures */	1163	/* update fd-related kernel structures */
710	fd_reify ();	1164	fd_reify (EV_A);
711		1165
712	/* calculate blocking time */	1166	/* calculate blocking time */
713		1167
714	/* we only need this for !monotonic clockor timers, but as we basically	1168	/* we only need this for !monotonic clock or timers, but as we basically
715	always have timers, we just calculate it always */	1169	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	1170	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1171	if (expect_true (have_monotonic))
718	time_update_monotonic ();	1172	time_update_monotonic (EV_A);
719	else	1173	else
720	#endif	1174	#endif
721	{	1175	{
722	ev_now = ev_time ();	1176	ev_rt_now = ev_time ();
723	now = ev_now;	1177	mn_now = ev_rt_now;
724	}	1178	}
725		1179
726	if (flags & EVLOOP_NONBLOCK || idlecnt)	1180	if (flags & EVLOOP_NONBLOCK || idlecnt)
727	block = 0.;	1181	block = 0.;
728	else	1182	else
729	{	1183	{
730	block = MAX_BLOCKTIME;	1184	block = MAX_BLOCKTIME;
731		1185
732	if (timercnt)	1186	if (timercnt)
733	{	1187	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	1188	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
735	if (block > to) block = to;	1189	if (block > to) block = to;
736	}	1190	}
737		1191
		1192	#if EV_PERIODICS
738	if (periodiccnt)	1193	if (periodiccnt)
739	{	1194	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1195	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
741	if (block > to) block = to;	1196	if (block > to) block = to;
742	}	1197	}
		1198	#endif
743		1199
744	if (block < 0.) block = 0.;	1200	if (block < 0.) block = 0.;
745	}	1201	}
746		1202
747	method_poll (block);	1203	method_poll (EV_A_ block);
748		1204
749	/* update ev_now, do magic */	1205	/* update ev_rt_now, do magic */
750	time_update ();	1206	time_update (EV_A);
751		1207
752	/* queue pending timers and reschedule them */	1208	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	1209	timers_reify (EV_A); /* relative timers called last */
		1210	#if EV_PERIODICS
754	periodics_reify (); /* absolute timers called first */	1211	periodics_reify (EV_A); /* absolute timers called first */
		1212	#endif
755		1213
756	/* queue idle watchers unless io or timers are pending */	1214	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	1215	if (idlecnt && !any_pending (EV_A))
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	1216	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		1217
760	/* queue check watchers, to be executed first */	1218	/* queue check watchers, to be executed first */
761	if (checkcnt)	1219	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	1220	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		1221
764	call_pending ();	1222	call_pending (EV_A);
765	}	1223	}
766	while (!ev_loop_done);	1224	while (activecnt && !loop_done);
767		1225
768	if (ev_loop_done != 2)	1226	if (loop_done != 2)
769	ev_loop_done = 0;	1227	loop_done = 0;
		1228	}
		1229
		1230	void
		1231	ev_unloop (EV_P_ int how)
		1232	{
		1233	loop_done = how;
770	}	1234	}
771		1235
772	/*****************************************************************************/	1236	/*****************************************************************************/
773		1237
774	static void	1238	inline void
775	wlist_add (WL *head, WL elem)	1239	wlist_add (WL *head, WL elem)
776	{	1240	{
777	elem->next = *head;	1241	elem->next = *head;
778	*head = elem;	1242	*head = elem;
779	}	1243	}
780		1244
781	static void	1245	inline void
782	wlist_del (WL *head, WL elem)	1246	wlist_del (WL *head, WL elem)
783	{	1247	{
784	while (*head)	1248	while (*head)
785	{	1249	{
786	if (*head == elem)	1250	if (*head == elem)
…		…
791		1255
792	head = &(*head)->next;	1256	head = &(*head)->next;
793	}	1257	}
794	}	1258	}
795		1259
796	static void	1260	inline void
797	ev_clear_pending (W w)	1261	ev_clear_pending (EV_P_ W w)
798	{	1262	{
799	if (w->pending)	1263	if (w->pending)
800	{	1264	{
801	pendings [w->pending - 1].w = 0;	1265	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	1266	w->pending = 0;
803	}	1267	}
804	}	1268	}
805		1269
806	static void	1270	inline void
807	ev_start (W w, int active)	1271	ev_start (EV_P_ W w, int active)
808	{	1272	{
		1273	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1274	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1275
809	w->active = active;	1276	w->active = active;
		1277	ev_ref (EV_A);
810	}	1278	}
811		1279
812	static void	1280	inline void
813	ev_stop (W w)	1281	ev_stop (EV_P_ W w)
814	{	1282	{
		1283	ev_unref (EV_A);
815	w->active = 0;	1284	w->active = 0;
816	}	1285	}
817		1286
818	/*****************************************************************************/	1287	/*****************************************************************************/
819		1288
820	void	1289	void
821	ev_io_start (struct ev_io *w)	1290	ev_io_start (EV_P_ struct ev_io *w)
822	{	1291	{
823	int fd = w->fd;	1292	int fd = w->fd;
824		1293
825	if (ev_is_active (w))	1294	if (ev_is_active (w))
826	return;	1295	return;
827		1296
828	assert (("ev_io_start called with negative fd", fd >= 0));	1297	assert (("ev_io_start called with negative fd", fd >= 0));
829		1298
830	ev_start ((W)w, 1);	1299	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1300	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1301	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		1302
834	fd_change (fd);	1303	fd_change (EV_A_ fd);
835	}	1304	}
836		1305
837	void	1306	void
838	ev_io_stop (struct ev_io *w)	1307	ev_io_stop (EV_P_ struct ev_io *w)
839	{	1308	{
840	ev_clear_pending ((W)w);	1309	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	1310	if (!ev_is_active (w))
842	return;	1311	return;
843		1312
		1313	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1314
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1315	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	1316	ev_stop (EV_A_ (W)w);
846		1317
847	fd_change (w->fd);	1318	fd_change (EV_A_ w->fd);
848	}	1319	}
849		1320
850	void	1321	void
851	ev_timer_start (struct ev_timer *w)	1322	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1323	{
853	if (ev_is_active (w))	1324	if (ev_is_active (w))
854	return;	1325	return;
855		1326
856	w->at += now;	1327	((WT)w)->at += mn_now;
857		1328
858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1329	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
859		1330
860	ev_start ((W)w, ++timercnt);	1331	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1332	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
862	timers [timercnt - 1] = w;	1333	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1334	upheap ((WT *)timers, timercnt - 1);
864	}
865		1335
		1336	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1337	}
		1338
866	void	1339	void
867	ev_timer_stop (struct ev_timer *w)	1340	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1341	{
869	ev_clear_pending ((W)w);	1342	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1343	if (!ev_is_active (w))
871	return;	1344	return;
872		1345
		1346	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1347
873	if (w->active < timercnt--)	1348	if (((W)w)->active < timercnt--)
874	{	1349	{
875	timers [w->active - 1] = timers [timercnt];	1350	timers [((W)w)->active - 1] = timers [timercnt];
876	downheap ((WT *)timers, timercnt, w->active - 1);	1351	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
877	}	1352	}
878		1353
879	w->at = w->repeat;	1354	((WT)w)->at -= mn_now;
880		1355
881	ev_stop ((W)w);	1356	ev_stop (EV_A_ (W)w);
882	}	1357	}
883		1358
884	void	1359	void
885	ev_timer_again (struct ev_timer *w)	1360	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1361	{
887	if (ev_is_active (w))	1362	if (ev_is_active (w))
888	{	1363	{
889	if (w->repeat)	1364	if (w->repeat)
890	{
891	w->at = now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
893	}
894	else	1366	else
895	ev_timer_stop (w);	1367	ev_timer_stop (EV_A_ w);
896	}	1368	}
897	else if (w->repeat)	1369	else if (w->repeat)
898	ev_timer_start (w);	1370	ev_timer_start (EV_A_ w);
899	}	1371	}
900		1372
		1373	#if EV_PERIODICS
901	void	1374	void
902	ev_periodic_start (struct ev_periodic *w)	1375	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1376	{
904	if (ev_is_active (w))	1377	if (ev_is_active (w))
905	return;	1378	return;
906		1379
		1380	if (w->reschedule_cb)
		1381	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1382	else if (w->interval)
		1383	{
907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1384	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
908
909	/* this formula differs from the one in periodic_reify because we do not always round up */	1385	/* this formula differs from the one in periodic_reify because we do not always round up */
910	if (w->interval)
911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1386	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1387	}
912		1388
913	ev_start ((W)w, ++periodiccnt);	1389	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1390	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
915	periodics [periodiccnt - 1] = w;	1391	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1392	upheap ((WT *)periodics, periodiccnt - 1);
917	}
918		1393
		1394	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1395	}
		1396
919	void	1397	void
920	ev_periodic_stop (struct ev_periodic *w)	1398	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1399	{
922	ev_clear_pending ((W)w);	1400	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1401	if (!ev_is_active (w))
924	return;	1402	return;
925		1403
		1404	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1405
926	if (w->active < periodiccnt--)	1406	if (((W)w)->active < periodiccnt--)
927	{	1407	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1408	periodics [((W)w)->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1409	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
930	}	1410	}
931		1411
932	ev_stop ((W)w);	1412	ev_stop (EV_A_ (W)w);
933	}	1413	}
934		1414
935	void	1415	void
		1416	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1417	{
		1418	/* TODO: use adjustheap and recalculation */
		1419	ev_periodic_stop (EV_A_ w);
		1420	ev_periodic_start (EV_A_ w);
		1421	}
		1422	#endif
		1423
		1424	void
936	ev_signal_start (struct ev_signal *w)	1425	ev_idle_start (EV_P_ struct ev_idle *w)
937	{	1426	{
938	if (ev_is_active (w))	1427	if (ev_is_active (w))
939	return;	1428	return;
940		1429
		1430	ev_start (EV_A_ (W)w, ++idlecnt);
		1431	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1432	idles [idlecnt - 1] = w;
		1433	}
		1434
		1435	void
		1436	ev_idle_stop (EV_P_ struct ev_idle *w)
		1437	{
		1438	ev_clear_pending (EV_A_ (W)w);
		1439	if (!ev_is_active (w))
		1440	return;
		1441
		1442	idles [((W)w)->active - 1] = idles [--idlecnt];
		1443	ev_stop (EV_A_ (W)w);
		1444	}
		1445
		1446	void
		1447	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1448	{
		1449	if (ev_is_active (w))
		1450	return;
		1451
		1452	ev_start (EV_A_ (W)w, ++preparecnt);
		1453	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1454	prepares [preparecnt - 1] = w;
		1455	}
		1456
		1457	void
		1458	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1459	{
		1460	ev_clear_pending (EV_A_ (W)w);
		1461	if (!ev_is_active (w))
		1462	return;
		1463
		1464	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1465	ev_stop (EV_A_ (W)w);
		1466	}
		1467
		1468	void
		1469	ev_check_start (EV_P_ struct ev_check *w)
		1470	{
		1471	if (ev_is_active (w))
		1472	return;
		1473
		1474	ev_start (EV_A_ (W)w, ++checkcnt);
		1475	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1476	checks [checkcnt - 1] = w;
		1477	}
		1478
		1479	void
		1480	ev_check_stop (EV_P_ struct ev_check *w)
		1481	{
		1482	ev_clear_pending (EV_A_ (W)w);
		1483	if (!ev_is_active (w))
		1484	return;
		1485
		1486	checks [((W)w)->active - 1] = checks [--checkcnt];
		1487	ev_stop (EV_A_ (W)w);
		1488	}
		1489
		1490	#ifndef SA_RESTART
		1491	# define SA_RESTART 0
		1492	#endif
		1493
		1494	void
		1495	ev_signal_start (EV_P_ struct ev_signal *w)
		1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
		1500	if (ev_is_active (w))
		1501	return;
		1502
941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1503	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
942		1504
943	ev_start ((W)w, 1);	1505	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1506	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1507	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1508
947	if (!w->next)	1509	if (!((WL)w)->next)
948	{	1510	{
		1511	#if WIN32
		1512	signal (w->signum, sighandler);
		1513	#else
949	struct sigaction sa;	1514	struct sigaction sa;
950	sa.sa_handler = sighandler;	1515	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1516	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1517	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1518	sigaction (w->signum, &sa, 0);
		1519	#endif
954	}	1520	}
955	}	1521	}
956		1522
957	void	1523	void
958	ev_signal_stop (struct ev_signal *w)	1524	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1525	{
960	ev_clear_pending ((W)w);	1526	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1527	if (!ev_is_active (w))
962	return;	1528	return;
963		1529
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1530	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1531	ev_stop (EV_A_ (W)w);
966		1532
967	if (!signals [w->signum - 1].head)	1533	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1534	signal (w->signum, SIG_DFL);
969	}	1535	}
970		1536
971	void	1537	void
972	ev_idle_start (struct ev_idle *w)	1538	ev_child_start (EV_P_ struct ev_child *w)
973	{	1539	{
		1540	#if EV_MULTIPLICITY
		1541	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1542	#endif
974	if (ev_is_active (w))	1543	if (ev_is_active (w))
975	return;	1544	return;
976		1545
977	ev_start ((W)w, ++idlecnt);	1546	ev_start (EV_A_ (W)w, 1);
978	array_needsize (idles, idlemax, idlecnt, );	1547	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
979	idles [idlecnt - 1] = w;
980	}	1548	}
981		1549
982	void	1550	void
983	ev_idle_stop (struct ev_idle *w)	1551	ev_child_stop (EV_P_ struct ev_child *w)
984	{	1552	{
985	ev_clear_pending ((W)w);	1553	ev_clear_pending (EV_A_ (W)w);
986	if (ev_is_active (w))	1554	if (ev_is_active (w))
987	return;	1555	return;
988		1556
989	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);
991	}
992
993	void
994	ev_prepare_start (struct ev_prepare *w)
995	{
996	if (ev_is_active (w))
997	return;
998
999	ev_start ((W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;
1002	}
1003
1004	void
1005	ev_prepare_stop (struct ev_prepare *w)
1006	{
1007	ev_clear_pending ((W)w);
1008	if (ev_is_active (w))
1009	return;
1010
1011	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);
1013	}
1014
1015	void
1016	ev_check_start (struct ev_check *w)
1017	{
1018	if (ev_is_active (w))
1019	return;
1020
1021	ev_start ((W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;
1024	}
1025
1026	void
1027	ev_check_stop (struct ev_check *w)
1028	{
1029	ev_clear_pending ((W)w);
1030	if (ev_is_active (w))
1031	return;
1032
1033	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);
1035	}
1036
1037	void
1038	ev_child_start (struct ev_child *w)
1039	{
1040	if (ev_is_active (w))
1041	return;
1042
1043	ev_start ((W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}
1046
1047	void
1048	ev_child_stop (struct ev_child *w)
1049	{
1050	ev_clear_pending ((W)w);
1051	if (ev_is_active (w))
1052	return;
1053
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1557	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1558	ev_stop (EV_A_ (W)w);
1056	}	1559	}
1057		1560
1058	/*****************************************************************************/	1561	/*****************************************************************************/
1059		1562
1060	struct ev_once	1563	struct ev_once
…		…
1064	void (*cb)(int revents, void *arg);	1567	void (*cb)(int revents, void *arg);
1065	void *arg;	1568	void *arg;
1066	};	1569	};
1067		1570
1068	static void	1571	static void
1069	once_cb (struct ev_once *once, int revents)	1572	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1573	{
1071	void (*cb)(int revents, void *arg) = once->cb;	1574	void (*cb)(int revents, void *arg) = once->cb;
1072	void *arg = once->arg;	1575	void *arg = once->arg;
1073		1576
1074	ev_io_stop (&once->io);	1577	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1578	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1579	ev_free (once);
1077		1580
1078	cb (revents, arg);	1581	cb (revents, arg);
1079	}	1582	}
1080		1583
1081	static void	1584	static void
1082	once_cb_io (struct ev_io *w, int revents)	1585	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1586	{
1084	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	1587	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1085	}	1588	}
1086		1589
1087	static void	1590	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1591	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1592	{
1090	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	1593	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1091	}	1594	}
1092		1595
1093	void	1596	void
1094	ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1597	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1095	{	1598	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1599	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1097		1600
1098	if (!once)	1601	if (!once)
1099	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1602	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1100	else	1603	else
1101	{	1604	{
1102	once->cb = cb;	1605	once->cb = cb;
1103	once->arg = arg;	1606	once->arg = arg;
1104		1607
1105	ev_watcher_init (&once->io, once_cb_io);	1608	ev_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1609	if (fd >= 0)
1107	{	1610	{
1108	ev_io_set (&once->io, fd, events);	1611	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1612	ev_io_start (EV_A_ &once->io);
1110	}	1613	}
1111		1614
1112	ev_watcher_init (&once->to, once_cb_to);	1615	ev_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1616	if (timeout >= 0.)
1114	{	1617	{
1115	ev_timer_set (&once->to, timeout, 0.);	1618	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1619	ev_timer_start (EV_A_ &once->to);
1117	}	1620	}
1118	}	1621	}
1119	}	1622	}
1120		1623
1121	/*****************************************************************************/	1624	#ifdef __cplusplus
1122
1123	#if 0
1124
1125	struct ev_io wio;
1126
1127	static void
1128	sin_cb (struct ev_io *w, int revents)
1129	{
1130	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1131	}	1625	}
1132
1133	static void
1134	ocb (struct ev_timer *w, int revents)
1135	{
1136	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1137	ev_timer_stop (w);
1138	ev_timer_start (w);
1139	}
1140
1141	static void
1142	scb (struct ev_signal *w, int revents)
1143	{
1144	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1145	ev_io_stop (&wio);
1146	ev_io_start (&wio);
1147	}
1148
1149	static void
1150	gcb (struct ev_signal *w, int revents)
1151	{
1152	fprintf (stderr, "generic %x\n", revents);
1153
1154	}
1155
1156	int main (void)
1157	{
1158	ev_init (0);
1159
1160	ev_io_init (&wio, sin_cb, 0, EV_READ);
1161	ev_io_start (&wio);
1162
1163	struct ev_timer t[10000];
1164
1165	#if 0
1166	int i;
1167	for (i = 0; i < 10000; ++i)
1168	{
1169	struct ev_timer *w = t + i;
1170	ev_watcher_init (w, ocb, i);
1171	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1172	ev_timer_start (w);
1173	if (drand48 () < 0.5)
1174	ev_timer_stop (w);
1175	}
1176	#endif	1626	#endif
1177		1627
1178	struct ev_timer t1;
1179	ev_timer_init (&t1, ocb, 5, 10);
1180	ev_timer_start (&t1);
1181
1182	struct ev_signal sig;
1183	ev_signal_init (&sig, scb, SIGQUIT);
1184	ev_signal_start (&sig);
1185
1186	struct ev_check cw;
1187	ev_check_init (&cw, gcb);
1188	ev_check_start (&cw);
1189
1190	struct ev_idle iw;
1191	ev_idle_init (&iw, gcb);
1192	ev_idle_start (&iw);
1193
1194	ev_loop (0);
1195
1196	return 0;
1197	}
1198
1199	#endif
1200
1201
1202
1203

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