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

Comparing libev/ev.c (file contents):
Revision 1.47 by root, Sat Nov 3 11:44:44 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>
		72	#include <time.h>
		73
		74	#include <signal.h>
		75
47	#ifndef WIN32	76	#ifndef WIN32
		77	# include <unistd.h>
		78	# include <sys/time.h>
48	# include <sys/wait.h>	79	# include <sys/wait.h>
49	#endif	80	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	81	/**/
54		82
55	#ifndef EV_USE_MONOTONIC	83	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	84	# define EV_USE_MONOTONIC 1
57	#endif	85	#endif
…		…
68	# define EV_USE_EPOLL 0	96	# define EV_USE_EPOLL 0
69	#endif	97	#endif
70		98
71	#ifndef EV_USE_KQUEUE	99	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	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
73	#endif	111	#endif
74		112
75	#ifndef EV_USE_REALTIME	113	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	114	# define EV_USE_REALTIME 1
77	#endif	115	#endif
…		…
93	#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) */
94	#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) */
95	#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 */
96	/#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 */
97		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
98	#include "ev.h"	139	# include "ev.h"
		140	#endif
99		141
100	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	144	# define inline inline
103	#else	145	#else
…		…
113		155
114	typedef struct ev_watcher *W;	156	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
117		159
118	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
119	ev_tstamp ev_now;	243	ev_tstamp ev_rt_now;
120	int ev_method;	244	#define VAR(name,decl) static decl;
		245	#include "ev_vars.h"
		246	#undef VAR
121		247
122	static int have_monotonic; /* runtime */	248	static int default_loop;
123		249
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	250	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		251
128	/*****************************************************************************/	252	/*****************************************************************************/
129		253
130	ev_tstamp	254	ev_tstamp
131	ev_time (void)	255	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	263	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	264	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	265	#endif
142	}	266	}
143		267
144	static ev_tstamp	268	inline ev_tstamp
145	get_clock (void)	269	get_clock (void)
146	{	270	{
147	#if EV_USE_MONOTONIC	271	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	272	if (expect_true (have_monotonic))
149	{	273	{
…		…
154	#endif	278	#endif
155		279
156	return ev_time ();	280	return ev_time ();
157	}	281	}
158		282
		283	#if EV_MULTIPLICITY
		284	ev_tstamp
		285	ev_now (EV_P)
		286	{
		287	return ev_rt_now;
		288	}
		289	#endif
		290
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	291	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		292
161	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
163	{ \	295	{ \
164	int newcnt = cur; \	296	int newcnt = cur; \
165	do \	297	do \
166	{ \	298	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	300	} \
169	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
170	\	302	\
171	base = realloc (base, sizeof (base) (newcnt)); \	303	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	305	cur = newcnt; \
174	}	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;
175		323
176	/*****************************************************************************/	324	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		325
188	static void	326	static void
189	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
190	{	328	{
191	while (count--)	329	while (count--)
…		…
196		334
197	++base;	335	++base;
198	}	336	}
199	}	337	}
200		338
201	typedef struct	339	void
		340	ev_feed_event (EV_P_ void *w, int revents)
202	{	341	{
203	W w;	342	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		343
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	344	if (w_->pending)
214	{	345	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	347	return;
217	}	348	}
218		349
219	w->pending = ++pendingcnt [ABSPRI (w)];	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	354	}
224		355
225	static void	356	static void
226	queue_events (W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	358	{
228	int i;	359	int i;
229		360
230	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
232	}	363	}
233		364
234	static void	365	inline void
235	fd_event (int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
236	{	367	{
237	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	369	struct ev_io *w;
239		370
240	for (w = anfd->head; w; w = w->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	372	{
242	int ev = w->events & events;	373	int ev = w->events & revents;
243		374
244	if (ev)	375	if (ev)
245	event ((W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
246	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
247	}	384	}
248		385
249	/*****************************************************************************/	386	/*****************************************************************************/
250		387
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	388	static void
255	fd_reify (void)	389	fd_reify (EV_P)
256	{	390	{
257	int i;	391	int i;
258		392
259	for (i = 0; i < fdchangecnt; ++i)	393	for (i = 0; i < fdchangecnt; ++i)
260	{	394	{
…		…
262	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	397	struct ev_io *w;
264		398
265	int events = 0;	399	int events = 0;
266		400
267	for (w = anfd->head; w; w = w->next)	401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	402	events \|= w->events;
269		403
270	anfd->reify = 0;	404	anfd->reify = 0;
271		405
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	407	anfd->events = events;
276	}
277	}	408	}
278		409
279	fdchangecnt = 0;	410	fdchangecnt = 0;
280	}	411	}
281		412
282	static void	413	static void
283	fd_change (int fd)	414	fd_change (EV_P_ int fd)
284	{	415	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	416	if (anfds [fd].reify)
286	return;	417	return;
287		418
288	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
289		420
290	++fdchangecnt;	421	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
293	}	424	}
294		425
295	static void	426	static void
296	fd_kill (int fd)	427	fd_kill (EV_P_ int fd)
297	{	428	{
298	struct ev_io *w;	429	struct ev_io *w;
299		430
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	431	while ((w = (struct ev_io *)anfds [fd].head))
302	{	432	{
303	ev_io_stop (w);	433	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	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
306	}	446	}
307		447
308	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
309	static void	449	static void
310	fd_ebadf (void)	450	fd_ebadf (EV_P)
311	{	451	{
312	int fd;	452	int fd;
313		453
314	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	455	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	457	fd_kill (EV_A_ fd);
318	}	458	}
319		459
320	/* called on ENOMEM in select/poll to kill some fds and retry */	460	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	461	static void
322	fd_enomem (void)	462	fd_enomem (EV_P)
323	{	463	{
324	int fd = anfdmax;	464	int fd;
325		465
326	while (fd--)	466	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	467	if (anfds [fd].events)
328	{	468	{
329	close (fd);
330	fd_kill (fd);	469	fd_kill (EV_A_ fd);
331	return;	470	return;
332	}	471	}
333	}	472	}
334		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	}
		487	}
		488
335	/*****************************************************************************/	489	/*****************************************************************************/
336		490
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	491	static void
344	upheap (WT *timers, int k)	492	upheap (WT *heap, int k)
345	{	493	{
346	WT w = timers [k];	494	WT w = heap [k];
347		495
348	while (k && timers [k >> 1]->at > w->at)	496	while (k && heap [k >> 1]->at > w->at)
349	{	497	{
350	timers [k] = timers [k >> 1];	498	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
352	k >>= 1;	500	k >>= 1;
353	}	501	}
354		502
355	timers [k] = w;	503	heap [k] = w;
356	timers [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
357		505
358	}	506	}
359		507
360	static void	508	static void
361	downheap (WT *timers, int N, int k)	509	downheap (WT *heap, int N, int k)
362	{	510	{
363	WT w = timers [k];	511	WT w = heap [k];
364		512
365	while (k < (N >> 1))	513	while (k < (N >> 1))
366	{	514	{
367	int j = k << 1;	515	int j = k << 1;
368		516
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	517	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	518	++j;
371		519
372	if (w->at <= timers [j]->at)	520	if (w->at <= heap [j]->at)
373	break;	521	break;
374		522
375	timers [k] = timers [j];	523	heap [k] = heap [j];
376	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
377	k = j;	525	k = j;
378	}	526	}
379		527
380	timers [k] = w;	528	heap [k] = w;
381	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);
382	}	542	}
383		543
384	/*****************************************************************************/	544	/*****************************************************************************/
385		545
386	typedef struct	546	typedef struct
387	{	547	{
388	struct ev_signal *head;	548	WL head;
389	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
390	} ANSIG;	550	} ANSIG;
391		551
392	static ANSIG *signals;	552	static ANSIG *signals;
393	static int signalmax;	553	static int signalmax;
…		…
409	}	569	}
410		570
411	static void	571	static void
412	sighandler (int signum)	572	sighandler (int signum)
413	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
414	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
415		579
416	if (!gotsig)	580	if (!gotsig)
417	{	581	{
		582	int old_errno = errno;
418	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
419	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
		589	errno = old_errno;
420	}	590	}
421	}	591	}
422		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
423	static void	613	static void
424	sigcb (struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	615	{
426	struct ev_signal *w;
427	int signum;	616	int signum;
428		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
429	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
430	gotsig = 0;	623	gotsig = 0;
431		624
432	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
433	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
434	{	627	ev_feed_signal_event (EV_A_ signum + 1);
435	signals [signum].gotsig = 0;
436
437	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);
439	}
440	}	628	}
441		629
442	static void	630	static void
443	siginit (void)	631	siginit (EV_P)
444	{	632	{
445	#ifndef WIN32	633	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		636
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	640	#endif
453		641
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	642	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	643	ev_io_start (EV_A_ &sigev);
		644	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	645	}
457		646
458	/*****************************************************************************/	647	/*****************************************************************************/
459		648
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	649	static struct ev_child *childs [PID_HASHSIZE];
		650
		651	#ifndef WIN32
		652
472	static struct ev_signal childev;	653	static struct ev_signal childev;
473
474	#ifndef WIN32
475		654
476	#ifndef WCONTINUED	655	#ifndef WCONTINUED
477	# define WCONTINUED 0	656	# define WCONTINUED 0
478	#endif	657	#endif
479		658
480	static void	659	static void
481	child_reap (struct ev_signal *sw, int chain, int pid, int status)	660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	661	{
483	struct ev_child *w;	662	struct ev_child *w;
484		663
485	for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)	664	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
486	if (w->pid == pid \|\| !w->pid)	665	if (w->pid == pid \|\| !w->pid)
487	{	666	{
488	w->priority = sw->priority; /* need to do it now */	667	ev_priority (w) = ev_priority (sw); /* need to do it now */
489	w->rpid = pid;	668	w->rpid = pid;
490	w->rstatus = status;	669	w->rstatus = status;
491	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
492	event ((W)w, EV_CHILD);	670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
493	}	671	}
494	}	672	}
495		673
496	static void	674	static void
497	childcb (struct ev_signal *sw, int revents)	675	childcb (EV_P_ struct ev_signal *sw, int revents)
498	{	676	{
499	int pid, status;	677	int pid, status;
500		678
501	printf ("chld %x\n", revents);//D
502	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
503	{	680	{
504	/* make sure we are called again until all childs have been reaped */	681	/* make sure we are called again until all childs have been reaped */
505	event ((W)sw, EV_SIGNAL);	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
506		683
507	child_reap (sw, pid, pid, status);	684	child_reap (EV_A_ sw, pid, pid, status);
508	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
509	}	686	}
510	}	687	}
511		688
512	#endif	689	#endif
513		690
…		…
536	ev_version_minor (void)	713	ev_version_minor (void)
537	{	714	{
538	return EV_VERSION_MINOR;	715	return EV_VERSION_MINOR;
539	}	716	}
540		717
541	/* return true if we are running with elevated privileges and ignore env variables */	718	/* return true if we are running with elevated privileges and should ignore env variables */
542	static int	719	static int
543	enable_secure ()	720	enable_secure (void)
544	{	721	{
		722	#ifdef WIN32
		723	return 0;
		724	#else
545	return getuid () != geteuid ()	725	return getuid () != geteuid ()
546	\|\| getgid () != getegid ();	726	\|\| getgid () != getegid ();
		727	#endif
547	}	728	}
548		729
549	int ev_init (int methods)	730	int
		731	ev_method (EV_P)
550	{	732	{
		733	return method;
		734	}
		735
		736	static void
		737	loop_init (EV_P_ int methods)
		738	{
551	if (!ev_method)	739	if (!method)
552	{	740	{
553	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
554	{	742	{
555	struct timespec ts;	743	struct timespec ts;
556	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
557	have_monotonic = 1;	745	have_monotonic = 1;
558	}	746	}
559	#endif	747	#endif
560		748
561	ev_now = ev_time ();	749	ev_rt_now = ev_time ();
562	now = get_clock ();	750	mn_now = get_clock ();
563	now_floor = now;	751	now_floor = mn_now;
564	diff = ev_now - now;	752	rtmn_diff = ev_rt_now - mn_now;
565
566	if (pipe (sigpipe))
567	return 0;
568		753
569	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
570	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
571	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
572	else	757	else
573	methods = EVMETHOD_ANY;	758	methods = EVMETHOD_ANY;
574		759
575	ev_method = 0;	760	method = 0;
		761	#if EV_USE_WIN32
		762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		763	#endif
576	#if EV_USE_KQUEUE	764	#if EV_USE_KQUEUE
577	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
578	#endif	766	#endif
579	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
580	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
581	#endif	769	#endif
582	#if EV_USE_POLL	770	#if EV_USE_POLL
583	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
584	#endif	772	#endif
585	#if EV_USE_SELECT	773	#if EV_USE_SELECT
586	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
587	#endif	775	#endif
588		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
589	if (ev_method)	899	if (ev_method (EV_A))
590	{	900	{
591	ev_watcher_init (&sigev, sigcb);
592	ev_set_priority (&sigev, EV_MAXPRI);
593	siginit ();	901	siginit (EV_A);
594		902
595	#ifndef WIN32	903	#ifndef WIN32
596	ev_signal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
597	ev_set_priority (&childev, EV_MAXPRI);	905	ev_set_priority (&childev, EV_MAXPRI);
598	ev_signal_start (&childev);	906	ev_signal_start (EV_A_ &childev);
		907	ev_unref (EV_A); /* child watcher should not keep loop alive */
599	#endif	908	#endif
600	}	909	}
		910	else
		911	default_loop = 0;
601	}	912	}
602		913
603	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;
604	}	947	}
605		948
606	/*****************************************************************************/	949	/*****************************************************************************/
607		950
608	void
609	ev_fork_prepare (void)
610	{
611	/* nop */
612	}
613
614	void
615	ev_fork_parent (void)
616	{
617	/* nop */
618	}
619
620	void
621	ev_fork_child (void)
622	{
623	#if EV_USE_EPOLL
624	if (ev_method == EVMETHOD_EPOLL)
625	epoll_postfork_child ();
626	#endif
627
628	ev_io_stop (&sigev);
629	close (sigpipe [0]);
630	close (sigpipe [1]);
631	pipe (sigpipe);
632	siginit ();
633	}
634
635	/*****************************************************************************/
636
637	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
638	call_pending (void)	964	call_pending (EV_P)
639	{	965	{
640	int pri;	966	int pri;
641		967
642	for (pri = NUMPRI; pri--; )	968	for (pri = NUMPRI; pri--; )
643	while (pendingcnt [pri])	969	while (pendingcnt [pri])
…		…
645	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
646		972
647	if (p->w)	973	if (p->w)
648	{	974	{
649	p->w->pending = 0;	975	p->w->pending = 0;
650	p->w->cb (p->w, p->events);	976	EV_CB_INVOKE (p->w, p->events);
651	}	977	}
652	}	978	}
653	}	979	}
654		980
655	static void	981	static void
656	timers_reify (void)	982	timers_reify (EV_P)
657	{	983	{
658	while (timercnt && timers [0]->at <= now)	984	while (timercnt && ((WT)timers [0])->at <= mn_now)
659	{	985	{
660	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)));
661		989
662	/* first reschedule or stop timer */	990	/* first reschedule or stop timer */
663	if (w->repeat)	991	if (w->repeat)
664	{	992	{
665	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
666	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
667	downheap ((WT *)timers, timercnt, 0);	999	downheap ((WT *)timers, timercnt, 0);
668	}	1000	}
669	else	1001	else
670	ev_timer_stop (w); /* nonrepeating: stop timer */	1002	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
671		1003
672	event ((W)w, EV_TIMEOUT);	1004	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
673	}	1005	}
674	}	1006	}
675		1007
		1008	#if EV_PERIODICS
676	static void	1009	static void
677	periodics_reify (void)	1010	periodics_reify (EV_P)
678	{	1011	{
679	while (periodiccnt && periodics [0]->at <= ev_now)	1012	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
680	{	1013	{
681	struct ev_periodic *w = periodics [0];	1014	struct ev_periodic *w = periodics [0];
682		1015
		1016	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1017
683	/* first reschedule or stop timer */	1018	/* first reschedule or stop timer */
684	if (w->interval)	1019	if (w->reschedule_cb)
685	{	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	{
686	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;
687	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));
688	downheap ((WT *)periodics, periodiccnt, 0);	1030	downheap ((WT *)periodics, periodiccnt, 0);
689	}	1031	}
690	else	1032	else
691	ev_periodic_stop (w); /* nonrepeating: stop timer */	1033	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
692		1034
693	event ((W)w, EV_PERIODIC);	1035	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
694	}	1036	}
695	}	1037	}
696		1038
697	static void	1039	static void
698	periodics_reschedule (ev_tstamp diff)	1040	periodics_reschedule (EV_P)
699	{	1041	{
700	int i;	1042	int i;
701		1043
702	/* adjust periodics after time jump */	1044	/* adjust periodics after time jump */
703	for (i = 0; i < periodiccnt; ++i)	1045	for (i = 0; i < periodiccnt; ++i)
704	{	1046	{
705	struct ev_periodic *w = periodics [i];	1047	struct ev_periodic *w = periodics [i];
706		1048
		1049	if (w->reschedule_cb)
		1050	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
707	if (w->interval)	1051	else if (w->interval)
708	{
709	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;
710
711	if (fabs (diff) >= 1e-4)
712	{
713	ev_periodic_stop (w);
714	ev_periodic_start (w);
715
716	i = 0; /* restart loop, inefficient, but time jumps should be rare */
717	}
718	}
719	}	1053	}
720	}
721		1054
722	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
723	time_update_monotonic (void)	1062	time_update_monotonic (EV_P)
724	{	1063	{
725	now = get_clock ();	1064	mn_now = get_clock ();
726		1065
727	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1066	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
728	{	1067	{
729	ev_now = now + diff;	1068	ev_rt_now = rtmn_diff + mn_now;
730	return 0;	1069	return 0;
731	}	1070	}
732	else	1071	else
733	{	1072	{
734	now_floor = now;	1073	now_floor = mn_now;
735	ev_now = ev_time ();	1074	ev_rt_now = ev_time ();
736	return 1;	1075	return 1;
737	}	1076	}
738	}	1077	}
739		1078
740	static void	1079	static void
741	time_update (void)	1080	time_update (EV_P)
742	{	1081	{
743	int i;	1082	int i;
744		1083
745	#if EV_USE_MONOTONIC	1084	#if EV_USE_MONOTONIC
746	if (expect_true (have_monotonic))	1085	if (expect_true (have_monotonic))
747	{	1086	{
748	if (time_update_monotonic ())	1087	if (time_update_monotonic (EV_A))
749	{	1088	{
750	ev_tstamp odiff = diff;	1089	ev_tstamp odiff = rtmn_diff;
751		1090
752	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 */
753	{	1092	{
754	diff = ev_now - now;	1093	rtmn_diff = ev_rt_now - mn_now;
755		1094
756	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1095	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
757	return; /* all is well */	1096	return; /* all is well */
758		1097
759	ev_now = ev_time ();	1098	ev_rt_now = ev_time ();
760	now = get_clock ();	1099	mn_now = get_clock ();
761	now_floor = now;	1100	now_floor = mn_now;
762	}	1101	}
763		1102
		1103	# if EV_PERIODICS
764	periodics_reschedule (diff - odiff);	1104	periodics_reschedule (EV_A);
		1105	# endif
765	/* 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) */
766	}	1108	}
767	}	1109	}
768	else	1110	else
769	#endif	1111	#endif
770	{	1112	{
771	ev_now = ev_time ();	1113	ev_rt_now = ev_time ();
772		1114
773	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))
774	{	1116	{
		1117	#if EV_PERIODICS
775	periodics_reschedule (ev_now - now);	1118	periodics_reschedule (EV_A);
		1119	#endif
776		1120
777	/* 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 */
778	for (i = 0; i < timercnt; ++i)	1122	for (i = 0; i < timercnt; ++i)
779	timers [i]->at += diff;	1123	((WT)timers [i])->at += ev_rt_now - mn_now;
780	}	1124	}
781		1125
782	now = ev_now;	1126	mn_now = ev_rt_now;
783	}	1127	}
784	}	1128	}
785		1129
786	int ev_loop_done;	1130	void
		1131	ev_ref (EV_P)
		1132	{
		1133	++activecnt;
		1134	}
787		1135
		1136	void
		1137	ev_unref (EV_P)
		1138	{
		1139	--activecnt;
		1140	}
		1141
		1142	static int loop_done;
		1143
		1144	void
788	void ev_loop (int flags)	1145	ev_loop (EV_P_ int flags)
789	{	1146	{
790	double block;	1147	double block;
791	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1148	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
792		1149
793	do	1150	do
794	{	1151	{
795	/* queue check watchers (and execute them) */	1152	/* queue check watchers (and execute them) */
796	if (expect_false (preparecnt))	1153	if (expect_false (preparecnt))
797	{	1154	{
798	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1155	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
799	call_pending ();	1156	call_pending (EV_A);
800	}	1157	}
801		1158
		1159	/* we might have forked, so reify kernel state if necessary */
		1160	if (expect_false (postfork))
		1161	loop_fork (EV_A);
		1162
802	/* update fd-related kernel structures */	1163	/* update fd-related kernel structures */
803	fd_reify ();	1164	fd_reify (EV_A);
804		1165
805	/* calculate blocking time */	1166	/* calculate blocking time */
806		1167
807	/* 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
808	always have timers, we just calculate it always */	1169	always have timers, we just calculate it always */
809	#if EV_USE_MONOTONIC	1170	#if EV_USE_MONOTONIC
810	if (expect_true (have_monotonic))	1171	if (expect_true (have_monotonic))
811	time_update_monotonic ();	1172	time_update_monotonic (EV_A);
812	else	1173	else
813	#endif	1174	#endif
814	{	1175	{
815	ev_now = ev_time ();	1176	ev_rt_now = ev_time ();
816	now = ev_now;	1177	mn_now = ev_rt_now;
817	}	1178	}
818		1179
819	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1180	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
820	block = 0.;	1181	block = 0.;
821	else	1182	else
822	{	1183	{
823	block = MAX_BLOCKTIME;	1184	block = MAX_BLOCKTIME;
824		1185
825	if (timercnt)	1186	if (timercnt)
826	{	1187	{
827	ev_tstamp to = timers [0]->at - now + method_fudge;	1188	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
828	if (block > to) block = to;	1189	if (block > to) block = to;
829	}	1190	}
830		1191
		1192	#if EV_PERIODICS
831	if (periodiccnt)	1193	if (periodiccnt)
832	{	1194	{
833	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1195	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
834	if (block > to) block = to;	1196	if (block > to) block = to;
835	}	1197	}
		1198	#endif
836		1199
837	if (block < 0.) block = 0.;	1200	if (block < 0.) block = 0.;
838	}	1201	}
839		1202
840	method_poll (block);	1203	method_poll (EV_A_ block);
841		1204
842	/* update ev_now, do magic */	1205	/* update ev_rt_now, do magic */
843	time_update ();	1206	time_update (EV_A);
844		1207
845	/* queue pending timers and reschedule them */	1208	/* queue pending timers and reschedule them */
846	timers_reify (); /* relative timers called last */	1209	timers_reify (EV_A); /* relative timers called last */
		1210	#if EV_PERIODICS
847	periodics_reify (); /* absolute timers called first */	1211	periodics_reify (EV_A); /* absolute timers called first */
		1212	#endif
848		1213
849	/* queue idle watchers unless io or timers are pending */	1214	/* queue idle watchers unless io or timers are pending */
850	if (!pendingcnt)	1215	if (idlecnt && !any_pending (EV_A))
851	queue_events ((W *)idles, idlecnt, EV_IDLE);	1216	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
852		1217
853	/* queue check watchers, to be executed first */	1218	/* queue check watchers, to be executed first */
854	if (checkcnt)	1219	if (checkcnt)
855	queue_events ((W *)checks, checkcnt, EV_CHECK);	1220	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
856		1221
857	call_pending ();	1222	call_pending (EV_A);
858	}	1223	}
859	while (!ev_loop_done);	1224	while (activecnt && !loop_done);
860		1225
861	if (ev_loop_done != 2)	1226	if (loop_done != 2)
862	ev_loop_done = 0;	1227	loop_done = 0;
		1228	}
		1229
		1230	void
		1231	ev_unloop (EV_P_ int how)
		1232	{
		1233	loop_done = how;
863	}	1234	}
864		1235
865	/*****************************************************************************/	1236	/*****************************************************************************/
866		1237
867	static void	1238	inline void
868	wlist_add (WL *head, WL elem)	1239	wlist_add (WL *head, WL elem)
869	{	1240	{
870	elem->next = *head;	1241	elem->next = *head;
871	*head = elem;	1242	*head = elem;
872	}	1243	}
873		1244
874	static void	1245	inline void
875	wlist_del (WL *head, WL elem)	1246	wlist_del (WL *head, WL elem)
876	{	1247	{
877	while (*head)	1248	while (*head)
878	{	1249	{
879	if (*head == elem)	1250	if (*head == elem)
…		…
884		1255
885	head = &(*head)->next;	1256	head = &(*head)->next;
886	}	1257	}
887	}	1258	}
888		1259
889	static void	1260	inline void
890	ev_clear_pending (W w)	1261	ev_clear_pending (EV_P_ W w)
891	{	1262	{
892	if (w->pending)	1263	if (w->pending)
893	{	1264	{
894	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1265	pendings [ABSPRI (w)][w->pending - 1].w = 0;
895	w->pending = 0;	1266	w->pending = 0;
896	}	1267	}
897	}	1268	}
898		1269
899	static void	1270	inline void
900	ev_start (W w, int active)	1271	ev_start (EV_P_ W w, int active)
901	{	1272	{
902	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1273	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
903	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1274	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
904		1275
905	w->active = active;	1276	w->active = active;
		1277	ev_ref (EV_A);
906	}	1278	}
907		1279
908	static void	1280	inline void
909	ev_stop (W w)	1281	ev_stop (EV_P_ W w)
910	{	1282	{
		1283	ev_unref (EV_A);
911	w->active = 0;	1284	w->active = 0;
912	}	1285	}
913		1286
914	/*****************************************************************************/	1287	/*****************************************************************************/
915		1288
916	void	1289	void
917	ev_io_start (struct ev_io *w)	1290	ev_io_start (EV_P_ struct ev_io *w)
918	{	1291	{
919	int fd = w->fd;	1292	int fd = w->fd;
920		1293
921	if (ev_is_active (w))	1294	if (ev_is_active (w))
922	return;	1295	return;
923		1296
924	assert (("ev_io_start called with negative fd", fd >= 0));	1297	assert (("ev_io_start called with negative fd", fd >= 0));
925		1298
926	ev_start ((W)w, 1);	1299	ev_start (EV_A_ (W)w, 1);
927	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1300	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
928	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1301	wlist_add ((WL *)&anfds[fd].head, (WL)w);
929		1302
930	fd_change (fd);	1303	fd_change (EV_A_ fd);
931	}	1304	}
932		1305
933	void	1306	void
934	ev_io_stop (struct ev_io *w)	1307	ev_io_stop (EV_P_ struct ev_io *w)
935	{	1308	{
936	ev_clear_pending ((W)w);	1309	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1310	if (!ev_is_active (w))
938	return;	1311	return;
939		1312
		1313	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1314
940	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1315	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
941	ev_stop ((W)w);	1316	ev_stop (EV_A_ (W)w);
942		1317
943	fd_change (w->fd);	1318	fd_change (EV_A_ w->fd);
944	}	1319	}
945		1320
946	void	1321	void
947	ev_timer_start (struct ev_timer *w)	1322	ev_timer_start (EV_P_ struct ev_timer *w)
948	{	1323	{
949	if (ev_is_active (w))	1324	if (ev_is_active (w))
950	return;	1325	return;
951		1326
952	w->at += now;	1327	((WT)w)->at += mn_now;
953		1328
954	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.));
955		1330
956	ev_start ((W)w, ++timercnt);	1331	ev_start (EV_A_ (W)w, ++timercnt);
957	array_needsize (timers, timermax, timercnt, );	1332	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
958	timers [timercnt - 1] = w;	1333	timers [timercnt - 1] = w;
959	upheap ((WT *)timers, timercnt - 1);	1334	upheap ((WT *)timers, timercnt - 1);
960	}
961		1335
		1336	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1337	}
		1338
962	void	1339	void
963	ev_timer_stop (struct ev_timer *w)	1340	ev_timer_stop (EV_P_ struct ev_timer *w)
964	{	1341	{
965	ev_clear_pending ((W)w);	1342	ev_clear_pending (EV_A_ (W)w);
966	if (!ev_is_active (w))	1343	if (!ev_is_active (w))
967	return;	1344	return;
968		1345
		1346	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1347
969	if (w->active < timercnt--)	1348	if (((W)w)->active < timercnt--)
970	{	1349	{
971	timers [w->active - 1] = timers [timercnt];	1350	timers [((W)w)->active - 1] = timers [timercnt];
972	downheap ((WT *)timers, timercnt, w->active - 1);	1351	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
973	}	1352	}
974		1353
975	w->at = w->repeat;	1354	((WT)w)->at -= mn_now;
976		1355
977	ev_stop ((W)w);	1356	ev_stop (EV_A_ (W)w);
978	}	1357	}
979		1358
980	void	1359	void
981	ev_timer_again (struct ev_timer *w)	1360	ev_timer_again (EV_P_ struct ev_timer *w)
982	{	1361	{
983	if (ev_is_active (w))	1362	if (ev_is_active (w))
984	{	1363	{
985	if (w->repeat)	1364	if (w->repeat)
986	{
987	w->at = now + w->repeat;
988	downheap ((WT *)timers, timercnt, w->active - 1);	1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
989	}
990	else	1366	else
991	ev_timer_stop (w);	1367	ev_timer_stop (EV_A_ w);
992	}	1368	}
993	else if (w->repeat)	1369	else if (w->repeat)
994	ev_timer_start (w);	1370	ev_timer_start (EV_A_ w);
995	}	1371	}
996		1372
		1373	#if EV_PERIODICS
997	void	1374	void
998	ev_periodic_start (struct ev_periodic *w)	1375	ev_periodic_start (EV_P_ struct ev_periodic *w)
999	{	1376	{
1000	if (ev_is_active (w))	1377	if (ev_is_active (w))
1001	return;	1378	return;
1002		1379
		1380	if (w->reschedule_cb)
		1381	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1382	else if (w->interval)
		1383	{
1003	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.));
1004
1005	/* 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 */
1006	if (w->interval)
1007	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	}
1008		1388
1009	ev_start ((W)w, ++periodiccnt);	1389	ev_start (EV_A_ (W)w, ++periodiccnt);
1010	array_needsize (periodics, periodicmax, periodiccnt, );	1390	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1011	periodics [periodiccnt - 1] = w;	1391	periodics [periodiccnt - 1] = w;
1012	upheap ((WT *)periodics, periodiccnt - 1);	1392	upheap ((WT *)periodics, periodiccnt - 1);
1013	}
1014		1393
		1394	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1395	}
		1396
1015	void	1397	void
1016	ev_periodic_stop (struct ev_periodic *w)	1398	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1017	{	1399	{
1018	ev_clear_pending ((W)w);	1400	ev_clear_pending (EV_A_ (W)w);
1019	if (!ev_is_active (w))	1401	if (!ev_is_active (w))
1020	return;	1402	return;
1021		1403
		1404	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1405
1022	if (w->active < periodiccnt--)	1406	if (((W)w)->active < periodiccnt--)
1023	{	1407	{
1024	periodics [w->active - 1] = periodics [periodiccnt];	1408	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1025	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1409	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1026	}	1410	}
1027		1411
1028	ev_stop ((W)w);	1412	ev_stop (EV_A_ (W)w);
		1413	}
		1414
		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
		1425	ev_idle_start (EV_P_ struct ev_idle *w)
		1426	{
		1427	if (ev_is_active (w))
		1428	return;
		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);
1029	}	1488	}
1030		1489
1031	#ifndef SA_RESTART	1490	#ifndef SA_RESTART
1032	# define SA_RESTART 0	1491	# define SA_RESTART 0
1033	#endif	1492	#endif
1034		1493
1035	void	1494	void
1036	ev_signal_start (struct ev_signal *w)	1495	ev_signal_start (EV_P_ struct ev_signal *w)
1037	{	1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
1038	if (ev_is_active (w))	1500	if (ev_is_active (w))
1039	return;	1501	return;
1040		1502
1041	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));
1042		1504
1043	ev_start ((W)w, 1);	1505	ev_start (EV_A_ (W)w, 1);
1044	array_needsize (signals, signalmax, w->signum, signals_init);	1506	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1045	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1507	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1046		1508
1047	if (!w->next)	1509	if (!((WL)w)->next)
1048	{	1510	{
		1511	#if WIN32
		1512	signal (w->signum, sighandler);
		1513	#else
1049	struct sigaction sa;	1514	struct sigaction sa;
1050	sa.sa_handler = sighandler;	1515	sa.sa_handler = sighandler;
1051	sigfillset (&sa.sa_mask);	1516	sigfillset (&sa.sa_mask);
1052	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1517	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1053	sigaction (w->signum, &sa, 0);	1518	sigaction (w->signum, &sa, 0);
		1519	#endif
1054	}	1520	}
1055	}	1521	}
1056		1522
1057	void	1523	void
1058	ev_signal_stop (struct ev_signal *w)	1524	ev_signal_stop (EV_P_ struct ev_signal *w)
1059	{	1525	{
1060	ev_clear_pending ((W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1061	if (!ev_is_active (w))	1527	if (!ev_is_active (w))
1062	return;	1528	return;
1063		1529
1064	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1530	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1065	ev_stop ((W)w);	1531	ev_stop (EV_A_ (W)w);
1066		1532
1067	if (!signals [w->signum - 1].head)	1533	if (!signals [w->signum - 1].head)
1068	signal (w->signum, SIG_DFL);	1534	signal (w->signum, SIG_DFL);
1069	}	1535	}
1070		1536
1071	void	1537	void
1072	ev_idle_start (struct ev_idle *w)	1538	ev_child_start (EV_P_ struct ev_child *w)
1073	{	1539	{
		1540	#if EV_MULTIPLICITY
		1541	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1542	#endif
1074	if (ev_is_active (w))	1543	if (ev_is_active (w))
1075	return;	1544	return;
1076		1545
1077	ev_start ((W)w, ++idlecnt);	1546	ev_start (EV_A_ (W)w, 1);
1078	array_needsize (idles, idlemax, idlecnt, );	1547	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1079	idles [idlecnt - 1] = w;
1080	}	1548	}
1081		1549
1082	void	1550	void
1083	ev_idle_stop (struct ev_idle *w)	1551	ev_child_stop (EV_P_ struct ev_child *w)
1084	{	1552	{
1085	ev_clear_pending ((W)w);	1553	ev_clear_pending (EV_A_ (W)w);
1086	if (ev_is_active (w))	1554	if (ev_is_active (w))
1087	return;	1555	return;
1088		1556
1089	idles [w->active - 1] = idles [--idlecnt];
1090	ev_stop ((W)w);
1091	}
1092
1093	void
1094	ev_prepare_start (struct ev_prepare *w)
1095	{
1096	if (ev_is_active (w))
1097	return;
1098
1099	ev_start ((W)w, ++preparecnt);
1100	array_needsize (prepares, preparemax, preparecnt, );
1101	prepares [preparecnt - 1] = w;
1102	}
1103
1104	void
1105	ev_prepare_stop (struct ev_prepare *w)
1106	{
1107	ev_clear_pending ((W)w);
1108	if (ev_is_active (w))
1109	return;
1110
1111	prepares [w->active - 1] = prepares [--preparecnt];
1112	ev_stop ((W)w);
1113	}
1114
1115	void
1116	ev_check_start (struct ev_check *w)
1117	{
1118	if (ev_is_active (w))
1119	return;
1120
1121	ev_start ((W)w, ++checkcnt);
1122	array_needsize (checks, checkmax, checkcnt, );
1123	checks [checkcnt - 1] = w;
1124	}
1125
1126	void
1127	ev_check_stop (struct ev_check *w)
1128	{
1129	ev_clear_pending ((W)w);
1130	if (ev_is_active (w))
1131	return;
1132
1133	checks [w->active - 1] = checks [--checkcnt];
1134	ev_stop ((W)w);
1135	}
1136
1137	void
1138	ev_child_start (struct ev_child *w)
1139	{
1140	if (ev_is_active (w))
1141	return;
1142
1143	ev_start ((W)w, 1);
1144	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1145	}
1146
1147	void
1148	ev_child_stop (struct ev_child *w)
1149	{
1150	ev_clear_pending ((W)w);
1151	if (ev_is_active (w))
1152	return;
1153
1154	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1557	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1155	ev_stop ((W)w);	1558	ev_stop (EV_A_ (W)w);
1156	}	1559	}
1157		1560
1158	/*****************************************************************************/	1561	/*****************************************************************************/
1159		1562
1160	struct ev_once	1563	struct ev_once
…		…
1164	void (cb)(int revents, void arg);	1567	void (cb)(int revents, void arg);
1165	void *arg;	1568	void *arg;
1166	};	1569	};
1167		1570
1168	static void	1571	static void
1169	once_cb (struct ev_once *once, int revents)	1572	once_cb (EV_P_ struct ev_once *once, int revents)
1170	{	1573	{
1171	void (cb)(int revents, void arg) = once->cb;	1574	void (cb)(int revents, void arg) = once->cb;
1172	void *arg = once->arg;	1575	void *arg = once->arg;
1173		1576
1174	ev_io_stop (&once->io);	1577	ev_io_stop (EV_A_ &once->io);
1175	ev_timer_stop (&once->to);	1578	ev_timer_stop (EV_A_ &once->to);
1176	free (once);	1579	ev_free (once);
1177		1580
1178	cb (revents, arg);	1581	cb (revents, arg);
1179	}	1582	}
1180		1583
1181	static void	1584	static void
1182	once_cb_io (struct ev_io *w, int revents)	1585	once_cb_io (EV_P_ struct ev_io *w, int revents)
1183	{	1586	{
1184	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);
1185	}	1588	}
1186		1589
1187	static void	1590	static void
1188	once_cb_to (struct ev_timer *w, int revents)	1591	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1189	{	1592	{
1190	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);
1191	}	1594	}
1192		1595
1193	void	1596	void
1194	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)
1195	{	1598	{
1196	struct ev_once *once = malloc (sizeof (struct ev_once));	1599	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1197		1600
1198	if (!once)	1601	if (!once)
1199	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1602	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1200	else	1603	else
1201	{	1604	{
1202	once->cb = cb;	1605	once->cb = cb;
1203	once->arg = arg;	1606	once->arg = arg;
1204		1607
1205	ev_watcher_init (&once->io, once_cb_io);	1608	ev_init (&once->io, once_cb_io);
1206	if (fd >= 0)	1609	if (fd >= 0)
1207	{	1610	{
1208	ev_io_set (&once->io, fd, events);	1611	ev_io_set (&once->io, fd, events);
1209	ev_io_start (&once->io);	1612	ev_io_start (EV_A_ &once->io);
1210	}	1613	}
1211		1614
1212	ev_watcher_init (&once->to, once_cb_to);	1615	ev_init (&once->to, once_cb_to);
1213	if (timeout >= 0.)	1616	if (timeout >= 0.)
1214	{	1617	{
1215	ev_timer_set (&once->to, timeout, 0.);	1618	ev_timer_set (&once->to, timeout, 0.);
1216	ev_timer_start (&once->to);	1619	ev_timer_start (EV_A_ &once->to);
1217	}	1620	}
1218	}	1621	}
1219	}	1622	}
1220		1623
1221	/*****************************************************************************/	1624	#ifdef __cplusplus
1222
1223	#if 0
1224
1225	struct ev_io wio;
1226
1227	static void
1228	sin_cb (struct ev_io *w, int revents)
1229	{
1230	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1231	}	1625	}
1232
1233	static void
1234	ocb (struct ev_timer *w, int revents)
1235	{
1236	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1237	ev_timer_stop (w);
1238	ev_timer_start (w);
1239	}
1240
1241	static void
1242	scb (struct ev_signal *w, int revents)
1243	{
1244	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1245	ev_io_stop (&wio);
1246	ev_io_start (&wio);
1247	}
1248
1249	static void
1250	gcb (struct ev_signal *w, int revents)
1251	{
1252	fprintf (stderr, "generic %x\n", revents);
1253
1254	}
1255
1256	int main (void)
1257	{
1258	ev_init (0);
1259
1260	ev_io_init (&wio, sin_cb, 0, EV_READ);
1261	ev_io_start (&wio);
1262
1263	struct ev_timer t[10000];
1264
1265	#if 0
1266	int i;
1267	for (i = 0; i < 10000; ++i)
1268	{
1269	struct ev_timer *w = t + i;
1270	ev_watcher_init (w, ocb, i);
1271	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1272	ev_timer_start (w);
1273	if (drand48 () < 0.5)
1274	ev_timer_stop (w);
1275	}
1276	#endif	1626	#endif
1277		1627
1278	struct ev_timer t1;
1279	ev_timer_init (&t1, ocb, 5, 10);
1280	ev_timer_start (&t1);
1281
1282	struct ev_signal sig;
1283	ev_signal_init (&sig, scb, SIGQUIT);
1284	ev_signal_start (&sig);
1285
1286	struct ev_check cw;
1287	ev_check_init (&cw, gcb);
1288	ev_check_start (&cw);
1289
1290	struct ev_idle iw;
1291	ev_idle_init (&iw, gcb);
1292	ev_idle_start (&iw);
1293
1294	ev_loop (0);
1295
1296	return 0;
1297	}
1298
1299	#endif
1300
1301
1302
1303

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Comparing libev/ev.c (file contents): Revision 1.47 by root, Sat Nov 3 11:44:44 2007 UTC vs. Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.47 by root, Sat Nov 3 11:44:44 2007 UTC vs.
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC