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

Comparing libev/ev.c (file contents):
Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs.
Revision 1.89 by root, Sat Nov 10 19:48:44 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? */
119	ev_tstamp ev_now;
120	int ev_method;
121		161
122	static int have_monotonic; /* runtime */	162	#include "ev_win32.c"
123
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		163
128	/*****************************************************************************/	164	/*****************************************************************************/
129		165
130	ev_tstamp	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
		243	ev_tstamp ev_rt_now;
		244	#define VAR(name,decl) static decl;
		245	#include "ev_vars.h"
		246	#undef VAR
		247
		248	static int default_loop;
		249
		250	#endif
		251
		252	/*****************************************************************************/
		253
		254	inline ev_tstamp
131	ev_time (void)	255	ev_time (void)
132	{	256	{
133	#if EV_USE_REALTIME	257	#if EV_USE_REALTIME
134	struct timespec ts;	258	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	259	clock_gettime (CLOCK_REALTIME, &ts);
…		…
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	{
418	int old_errno = errno;	582	int old_errno = errno;
419	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
420	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
421	errno = old_errno;	589	errno = old_errno;
422	}	590	}
423	}	591	}
424		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
425	static void	613	static void
426	sigcb (struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
427	{	615	{
428	struct ev_signal *w;
429	int signum;	616	int signum;
430		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
431	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
432	gotsig = 0;	623	gotsig = 0;
433		624
434	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
435	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
436	{	627	ev_feed_signal_event (EV_A_ signum + 1);
437	signals [signum].gotsig = 0;
438
439	for (w = signals [signum].head; w; w = w->next)
440	event ((W)w, EV_SIGNAL);
441	}
442	}	628	}
443		629
444	static void	630	static void
445	siginit (void)	631	siginit (EV_P)
446	{	632	{
447	#ifndef WIN32	633	#ifndef WIN32
448	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
449	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
450		636
…		…
452	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
453	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
454	#endif	640	#endif
455		641
456	ev_io_set (&sigev, sigpipe [0], EV_READ);	642	ev_io_set (&sigev, sigpipe [0], EV_READ);
457	ev_io_start (&sigev);	643	ev_io_start (EV_A_ &sigev);
		644	ev_unref (EV_A); /* child watcher should not keep loop alive */
458	}	645	}
459		646
460	/*****************************************************************************/	647	/*****************************************************************************/
461		648
462	static struct ev_idle **idles;
463	static int idlemax, idlecnt;
464
465	static struct ev_prepare **prepares;
466	static int preparemax, preparecnt;
467
468	static struct ev_check **checks;
469	static int checkmax, checkcnt;
470
471	/*****************************************************************************/
472
473	static struct ev_child *childs [PID_HASHSIZE];	649	static struct ev_child *childs [PID_HASHSIZE];
		650
		651	#ifndef WIN32
		652
474	static struct ev_signal childev;	653	static struct ev_signal childev;
475
476	#ifndef WIN32
477		654
478	#ifndef WCONTINUED	655	#ifndef WCONTINUED
479	# define WCONTINUED 0	656	# define WCONTINUED 0
480	#endif	657	#endif
481		658
482	static void	659	static void
483	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)
484	{	661	{
485	struct ev_child *w;	662	struct ev_child *w;
486		663
487	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)
488	if (w->pid == pid \|\| !w->pid)	665	if (w->pid == pid \|\| !w->pid)
489	{	666	{
490	w->priority = sw->priority; /* need to do it now */	667	ev_priority (w) = ev_priority (sw); /* need to do it now */
491	w->rpid = pid;	668	w->rpid = pid;
492	w->rstatus = status;	669	w->rstatus = status;
493	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
494	event ((W)w, EV_CHILD);	670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
495	}	671	}
496	}	672	}
497		673
498	static void	674	static void
499	childcb (struct ev_signal *sw, int revents)	675	childcb (EV_P_ struct ev_signal *sw, int revents)
500	{	676	{
501	int pid, status;	677	int pid, status;
502		678
503	printf ("chld %x\n", revents);//D
504	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
505	{	680	{
506	/* 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 */
507	event ((W)sw, EV_SIGNAL);	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
508		683
509	child_reap (sw, pid, pid, status);	684	child_reap (EV_A_ sw, pid, pid, status);
510	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 */
511	}	686	}
512	}	687	}
513		688
514	#endif	689	#endif
515		690
…		…
538	ev_version_minor (void)	713	ev_version_minor (void)
539	{	714	{
540	return EV_VERSION_MINOR;	715	return EV_VERSION_MINOR;
541	}	716	}
542		717
543	/* 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 */
544	static int	719	static int
545	enable_secure ()	720	enable_secure (void)
546	{	721	{
		722	#ifdef WIN32
		723	return 0;
		724	#else
547	return getuid () != geteuid ()	725	return getuid () != geteuid ()
548	\|\| getgid () != getegid ();	726	\|\| getgid () != getegid ();
		727	#endif
549	}	728	}
550		729
551	int ev_init (int methods)	730	int
		731	ev_method (EV_P)
552	{	732	{
		733	return method;
		734	}
		735
		736	static void
		737	loop_init (EV_P_ int methods)
		738	{
553	if (!ev_method)	739	if (!method)
554	{	740	{
555	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
556	{	742	{
557	struct timespec ts;	743	struct timespec ts;
558	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
559	have_monotonic = 1;	745	have_monotonic = 1;
560	}	746	}
561	#endif	747	#endif
562		748
563	ev_now = ev_time ();	749	ev_rt_now = ev_time ();
564	now = get_clock ();	750	mn_now = get_clock ();
565	now_floor = now;	751	now_floor = mn_now;
566	diff = ev_now - now;	752	rtmn_diff = ev_rt_now - mn_now;
567
568	if (pipe (sigpipe))
569	return 0;
570		753
571	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
572	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
573	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
574	else	757	else
575	methods = EVMETHOD_ANY;	758	methods = EVMETHOD_ANY;
576		759
577	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
578	#if EV_USE_KQUEUE	764	#if EV_USE_KQUEUE
579	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
580	#endif	766	#endif
581	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
582	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
583	#endif	769	#endif
584	#if EV_USE_POLL	770	#if EV_USE_POLL
585	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
586	#endif	772	#endif
587	#if EV_USE_SELECT	773	#if EV_USE_SELECT
588	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
589	#endif	775	#endif
590		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	array_free_microshit (periodic);
		810	array_free_microshit (idle);
		811	array_free_microshit (prepare);
		812	array_free_microshit (check);
		813
		814	method = 0;
		815	}
		816
		817	static void
		818	loop_fork (EV_P)
		819	{
		820	#if EV_USE_EPOLL
		821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		822	#endif
		823	#if EV_USE_KQUEUE
		824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		825	#endif
		826
		827	if (ev_is_active (&sigev))
		828	{
		829	/* default loop */
		830
		831	ev_ref (EV_A);
		832	ev_io_stop (EV_A_ &sigev);
		833	close (sigpipe [0]);
		834	close (sigpipe [1]);
		835
		836	while (pipe (sigpipe))
		837	syserr ("(libev) error creating pipe");
		838
		839	siginit (EV_A);
		840	}
		841
		842	postfork = 0;
		843	}
		844
		845	#if EV_MULTIPLICITY
		846	struct ev_loop *
		847	ev_loop_new (int methods)
		848	{
		849	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		850
		851	memset (loop, 0, sizeof (struct ev_loop));
		852
		853	loop_init (EV_A_ methods);
		854
		855	if (ev_method (EV_A))
		856	return loop;
		857
		858	return 0;
		859	}
		860
		861	void
		862	ev_loop_destroy (EV_P)
		863	{
		864	loop_destroy (EV_A);
		865	ev_free (loop);
		866	}
		867
		868	void
		869	ev_loop_fork (EV_P)
		870	{
		871	postfork = 1;
		872	}
		873
		874	#endif
		875
		876	#if EV_MULTIPLICITY
		877	struct ev_loop *
		878	#else
		879	int
		880	#endif
		881	ev_default_loop (int methods)
		882	{
		883	if (sigpipe [0] == sigpipe [1])
		884	if (pipe (sigpipe))
		885	return 0;
		886
		887	if (!default_loop)
		888	{
		889	#if EV_MULTIPLICITY
		890	struct ev_loop *loop = default_loop = &default_loop_struct;
		891	#else
		892	default_loop = 1;
		893	#endif
		894
		895	loop_init (EV_A_ methods);
		896
591	if (ev_method)	897	if (ev_method (EV_A))
592	{	898	{
593	ev_watcher_init (&sigev, sigcb);
594	ev_set_priority (&sigev, EV_MAXPRI);
595	siginit ();	899	siginit (EV_A);
596		900
597	#ifndef WIN32	901	#ifndef WIN32
598	ev_signal_init (&childev, childcb, SIGCHLD);	902	ev_signal_init (&childev, childcb, SIGCHLD);
599	ev_set_priority (&childev, EV_MAXPRI);	903	ev_set_priority (&childev, EV_MAXPRI);
600	ev_signal_start (&childev);	904	ev_signal_start (EV_A_ &childev);
		905	ev_unref (EV_A); /* child watcher should not keep loop alive */
601	#endif	906	#endif
602	}	907	}
		908	else
		909	default_loop = 0;
603	}	910	}
604		911
605	return ev_method;	912	return default_loop;
		913	}
		914
		915	void
		916	ev_default_destroy (void)
		917	{
		918	#if EV_MULTIPLICITY
		919	struct ev_loop *loop = default_loop;
		920	#endif
		921
		922	#ifndef WIN32
		923	ev_ref (EV_A); /* child watcher */
		924	ev_signal_stop (EV_A_ &childev);
		925	#endif
		926
		927	ev_ref (EV_A); /* signal watcher */
		928	ev_io_stop (EV_A_ &sigev);
		929
		930	close (sigpipe [0]); sigpipe [0] = 0;
		931	close (sigpipe [1]); sigpipe [1] = 0;
		932
		933	loop_destroy (EV_A);
		934	}
		935
		936	void
		937	ev_default_fork (void)
		938	{
		939	#if EV_MULTIPLICITY
		940	struct ev_loop *loop = default_loop;
		941	#endif
		942
		943	if (method)
		944	postfork = 1;
606	}	945	}
607		946
608	/*****************************************************************************/	947	/*****************************************************************************/
609		948
610	void
611	ev_fork_prepare (void)
612	{
613	/* nop */
614	}
615
616	void
617	ev_fork_parent (void)
618	{
619	/* nop */
620	}
621
622	void
623	ev_fork_child (void)
624	{
625	#if EV_USE_EPOLL
626	if (ev_method == EVMETHOD_EPOLL)
627	epoll_postfork_child ();
628	#endif
629
630	ev_io_stop (&sigev);
631	close (sigpipe [0]);
632	close (sigpipe [1]);
633	pipe (sigpipe);
634	siginit ();
635	}
636
637	/*****************************************************************************/
638
639	static void	949	static int
		950	any_pending (EV_P)
		951	{
		952	int pri;
		953
		954	for (pri = NUMPRI; pri--; )
		955	if (pendingcnt [pri])
		956	return 1;
		957
		958	return 0;
		959	}
		960
		961	static void
640	call_pending (void)	962	call_pending (EV_P)
641	{	963	{
642	int pri;	964	int pri;
643		965
644	for (pri = NUMPRI; pri--; )	966	for (pri = NUMPRI; pri--; )
645	while (pendingcnt [pri])	967	while (pendingcnt [pri])
…		…
647	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
648		970
649	if (p->w)	971	if (p->w)
650	{	972	{
651	p->w->pending = 0;	973	p->w->pending = 0;
652	p->w->cb (p->w, p->events);	974	EV_CB_INVOKE (p->w, p->events);
653	}	975	}
654	}	976	}
655	}	977	}
656		978
657	static void	979	static void
658	timers_reify (void)	980	timers_reify (EV_P)
659	{	981	{
660	while (timercnt && timers [0]->at <= now)	982	while (timercnt && ((WT)timers [0])->at <= mn_now)
661	{	983	{
662	struct ev_timer *w = timers [0];	984	struct ev_timer *w = timers [0];
		985
		986	assert (("inactive timer on timer heap detected", ev_is_active (w)));
663		987
664	/* first reschedule or stop timer */	988	/* first reschedule or stop timer */
665	if (w->repeat)	989	if (w->repeat)
666	{	990	{
667	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	991	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
668	w->at = now + w->repeat;	992	((WT)w)->at = mn_now + w->repeat;
669	downheap ((WT *)timers, timercnt, 0);	993	downheap ((WT *)timers, timercnt, 0);
670	}	994	}
671	else	995	else
672	ev_timer_stop (w); /* nonrepeating: stop timer */	996	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
673		997
674	event ((W)w, EV_TIMEOUT);	998	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
675	}	999	}
676	}	1000	}
677		1001
678	static void	1002	static void
679	periodics_reify (void)	1003	periodics_reify (EV_P)
680	{	1004	{
681	while (periodiccnt && periodics [0]->at <= ev_now)	1005	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
682	{	1006	{
683	struct ev_periodic *w = periodics [0];	1007	struct ev_periodic *w = periodics [0];
684		1008
		1009	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1010
685	/* first reschedule or stop timer */	1011	/* first reschedule or stop timer */
686	if (w->interval)	1012	if (w->reschedule_cb)
687	{	1013	{
		1014	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1015
		1016	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1017	downheap ((WT *)periodics, periodiccnt, 0);
		1018	}
		1019	else if (w->interval)
		1020	{
688	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1021	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
689	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1022	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
690	downheap ((WT *)periodics, periodiccnt, 0);	1023	downheap ((WT *)periodics, periodiccnt, 0);
691	}	1024	}
692	else	1025	else
693	ev_periodic_stop (w); /* nonrepeating: stop timer */	1026	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
694		1027
695	event ((W)w, EV_PERIODIC);	1028	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
696	}	1029	}
697	}	1030	}
698		1031
699	static void	1032	static void
700	periodics_reschedule (ev_tstamp diff)	1033	periodics_reschedule (EV_P)
701	{	1034	{
702	int i;	1035	int i;
703		1036
704	/* adjust periodics after time jump */	1037	/* adjust periodics after time jump */
705	for (i = 0; i < periodiccnt; ++i)	1038	for (i = 0; i < periodiccnt; ++i)
706	{	1039	{
707	struct ev_periodic *w = periodics [i];	1040	struct ev_periodic *w = periodics [i];
708		1041
		1042	if (w->reschedule_cb)
		1043	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
709	if (w->interval)	1044	else if (w->interval)
710	{
711	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1045	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
712
713	if (fabs (diff) >= 1e-4)
714	{
715	ev_periodic_stop (w);
716	ev_periodic_start (w);
717
718	i = 0; /* restart loop, inefficient, but time jumps should be rare */
719	}
720	}
721	}	1046	}
722	}
723		1047
724	static int	1048	/* now rebuild the heap */
		1049	for (i = periodiccnt >> 1; i--; )
		1050	downheap ((WT *)periodics, periodiccnt, i);
		1051	}
		1052
		1053	inline int
725	time_update_monotonic (void)	1054	time_update_monotonic (EV_P)
726	{	1055	{
727	now = get_clock ();	1056	mn_now = get_clock ();
728		1057
729	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1058	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
730	{	1059	{
731	ev_now = now + diff;	1060	ev_rt_now = rtmn_diff + mn_now;
732	return 0;	1061	return 0;
733	}	1062	}
734	else	1063	else
735	{	1064	{
736	now_floor = now;	1065	now_floor = mn_now;
737	ev_now = ev_time ();	1066	ev_rt_now = ev_time ();
738	return 1;	1067	return 1;
739	}	1068	}
740	}	1069	}
741		1070
742	static void	1071	static void
743	time_update (void)	1072	time_update (EV_P)
744	{	1073	{
745	int i;	1074	int i;
746		1075
747	#if EV_USE_MONOTONIC	1076	#if EV_USE_MONOTONIC
748	if (expect_true (have_monotonic))	1077	if (expect_true (have_monotonic))
749	{	1078	{
750	if (time_update_monotonic ())	1079	if (time_update_monotonic (EV_A))
751	{	1080	{
752	ev_tstamp odiff = diff;	1081	ev_tstamp odiff = rtmn_diff;
753		1082
754	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1083	for (i = 4; --i; ) /* loop a few times, before making important decisions */
755	{	1084	{
756	diff = ev_now - now;	1085	rtmn_diff = ev_rt_now - mn_now;
757		1086
758	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1087	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
759	return; /* all is well */	1088	return; /* all is well */
760		1089
761	ev_now = ev_time ();	1090	ev_rt_now = ev_time ();
762	now = get_clock ();	1091	mn_now = get_clock ();
763	now_floor = now;	1092	now_floor = mn_now;
764	}	1093	}
765		1094
766	periodics_reschedule (diff - odiff);	1095	periodics_reschedule (EV_A);
767	/* no timer adjustment, as the monotonic clock doesn't jump */	1096	/* no timer adjustment, as the monotonic clock doesn't jump */
		1097	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
768	}	1098	}
769	}	1099	}
770	else	1100	else
771	#endif	1101	#endif
772	{	1102	{
773	ev_now = ev_time ();	1103	ev_rt_now = ev_time ();
774		1104
775	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1105	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
776	{	1106	{
777	periodics_reschedule (ev_now - now);	1107	periodics_reschedule (EV_A);
778		1108
779	/* adjust timers. this is easy, as the offset is the same for all */	1109	/* adjust timers. this is easy, as the offset is the same for all */
780	for (i = 0; i < timercnt; ++i)	1110	for (i = 0; i < timercnt; ++i)
781	timers [i]->at += diff;	1111	((WT)timers [i])->at += ev_rt_now - mn_now;
782	}	1112	}
783		1113
784	now = ev_now;	1114	mn_now = ev_rt_now;
785	}	1115	}
786	}	1116	}
787		1117
788	int ev_loop_done;	1118	void
		1119	ev_ref (EV_P)
		1120	{
		1121	++activecnt;
		1122	}
789		1123
		1124	void
		1125	ev_unref (EV_P)
		1126	{
		1127	--activecnt;
		1128	}
		1129
		1130	static int loop_done;
		1131
		1132	void
790	void ev_loop (int flags)	1133	ev_loop (EV_P_ int flags)
791	{	1134	{
792	double block;	1135	double block;
793	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1136	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
794		1137
795	do	1138	do
796	{	1139	{
797	/* queue check watchers (and execute them) */	1140	/* queue check watchers (and execute them) */
798	if (expect_false (preparecnt))	1141	if (expect_false (preparecnt))
799	{	1142	{
800	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1143	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
801	call_pending ();	1144	call_pending (EV_A);
802	}	1145	}
803		1146
		1147	/* we might have forked, so reify kernel state if necessary */
		1148	if (expect_false (postfork))
		1149	loop_fork (EV_A);
		1150
804	/* update fd-related kernel structures */	1151	/* update fd-related kernel structures */
805	fd_reify ();	1152	fd_reify (EV_A);
806		1153
807	/* calculate blocking time */	1154	/* calculate blocking time */
808		1155
809	/* we only need this for !monotonic clockor timers, but as we basically	1156	/* we only need this for !monotonic clock or timers, but as we basically
810	always have timers, we just calculate it always */	1157	always have timers, we just calculate it always */
811	#if EV_USE_MONOTONIC	1158	#if EV_USE_MONOTONIC
812	if (expect_true (have_monotonic))	1159	if (expect_true (have_monotonic))
813	time_update_monotonic ();	1160	time_update_monotonic (EV_A);
814	else	1161	else
815	#endif	1162	#endif
816	{	1163	{
817	ev_now = ev_time ();	1164	ev_rt_now = ev_time ();
818	now = ev_now;	1165	mn_now = ev_rt_now;
819	}	1166	}
820		1167
821	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1168	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
822	block = 0.;	1169	block = 0.;
823	else	1170	else
824	{	1171	{
825	block = MAX_BLOCKTIME;	1172	block = MAX_BLOCKTIME;
826		1173
827	if (timercnt)	1174	if (timercnt)
828	{	1175	{
829	ev_tstamp to = timers [0]->at - now + method_fudge;	1176	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
830	if (block > to) block = to;	1177	if (block > to) block = to;
831	}	1178	}
832		1179
833	if (periodiccnt)	1180	if (periodiccnt)
834	{	1181	{
835	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1182	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
836	if (block > to) block = to;	1183	if (block > to) block = to;
837	}	1184	}
838		1185
839	if (block < 0.) block = 0.;	1186	if (block < 0.) block = 0.;
840	}	1187	}
841		1188
842	method_poll (block);	1189	method_poll (EV_A_ block);
843		1190
844	/* update ev_now, do magic */	1191	/* update ev_rt_now, do magic */
845	time_update ();	1192	time_update (EV_A);
846		1193
847	/* queue pending timers and reschedule them */	1194	/* queue pending timers and reschedule them */
848	timers_reify (); /* relative timers called last */	1195	timers_reify (EV_A); /* relative timers called last */
849	periodics_reify (); /* absolute timers called first */	1196	periodics_reify (EV_A); /* absolute timers called first */
850		1197
851	/* queue idle watchers unless io or timers are pending */	1198	/* queue idle watchers unless io or timers are pending */
852	if (!pendingcnt)	1199	if (idlecnt && !any_pending (EV_A))
853	queue_events ((W *)idles, idlecnt, EV_IDLE);	1200	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
854		1201
855	/* queue check watchers, to be executed first */	1202	/* queue check watchers, to be executed first */
856	if (checkcnt)	1203	if (checkcnt)
857	queue_events ((W *)checks, checkcnt, EV_CHECK);	1204	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
858		1205
859	call_pending ();	1206	call_pending (EV_A);
860	}	1207	}
861	while (!ev_loop_done);	1208	while (activecnt && !loop_done);
862		1209
863	if (ev_loop_done != 2)	1210	if (loop_done != 2)
864	ev_loop_done = 0;	1211	loop_done = 0;
		1212	}
		1213
		1214	void
		1215	ev_unloop (EV_P_ int how)
		1216	{
		1217	loop_done = how;
865	}	1218	}
866		1219
867	/*****************************************************************************/	1220	/*****************************************************************************/
868		1221
869	static void	1222	inline void
870	wlist_add (WL *head, WL elem)	1223	wlist_add (WL *head, WL elem)
871	{	1224	{
872	elem->next = *head;	1225	elem->next = *head;
873	*head = elem;	1226	*head = elem;
874	}	1227	}
875		1228
876	static void	1229	inline void
877	wlist_del (WL *head, WL elem)	1230	wlist_del (WL *head, WL elem)
878	{	1231	{
879	while (*head)	1232	while (*head)
880	{	1233	{
881	if (*head == elem)	1234	if (*head == elem)
…		…
886		1239
887	head = &(*head)->next;	1240	head = &(*head)->next;
888	}	1241	}
889	}	1242	}
890		1243
891	static void	1244	inline void
892	ev_clear_pending (W w)	1245	ev_clear_pending (EV_P_ W w)
893	{	1246	{
894	if (w->pending)	1247	if (w->pending)
895	{	1248	{
896	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1249	pendings [ABSPRI (w)][w->pending - 1].w = 0;
897	w->pending = 0;	1250	w->pending = 0;
898	}	1251	}
899	}	1252	}
900		1253
901	static void	1254	inline void
902	ev_start (W w, int active)	1255	ev_start (EV_P_ W w, int active)
903	{	1256	{
904	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1257	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
905	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1258	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
906		1259
907	w->active = active;	1260	w->active = active;
		1261	ev_ref (EV_A);
908	}	1262	}
909		1263
910	static void	1264	inline void
911	ev_stop (W w)	1265	ev_stop (EV_P_ W w)
912	{	1266	{
		1267	ev_unref (EV_A);
913	w->active = 0;	1268	w->active = 0;
914	}	1269	}
915		1270
916	/*****************************************************************************/	1271	/*****************************************************************************/
917		1272
918	void	1273	void
919	ev_io_start (struct ev_io *w)	1274	ev_io_start (EV_P_ struct ev_io *w)
920	{	1275	{
921	int fd = w->fd;	1276	int fd = w->fd;
922		1277
923	if (ev_is_active (w))	1278	if (ev_is_active (w))
924	return;	1279	return;
925		1280
926	assert (("ev_io_start called with negative fd", fd >= 0));	1281	assert (("ev_io_start called with negative fd", fd >= 0));
927		1282
928	ev_start ((W)w, 1);	1283	ev_start (EV_A_ (W)w, 1);
929	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1284	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
930	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1285	wlist_add ((WL *)&anfds[fd].head, (WL)w);
931		1286
932	fd_change (fd);	1287	fd_change (EV_A_ fd);
933	}	1288	}
934		1289
935	void	1290	void
936	ev_io_stop (struct ev_io *w)	1291	ev_io_stop (EV_P_ struct ev_io *w)
937	{	1292	{
938	ev_clear_pending ((W)w);	1293	ev_clear_pending (EV_A_ (W)w);
939	if (!ev_is_active (w))	1294	if (!ev_is_active (w))
940	return;	1295	return;
941		1296
		1297	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1298
942	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1299	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
943	ev_stop ((W)w);	1300	ev_stop (EV_A_ (W)w);
944		1301
945	fd_change (w->fd);	1302	fd_change (EV_A_ w->fd);
946	}	1303	}
947		1304
948	void	1305	void
949	ev_timer_start (struct ev_timer *w)	1306	ev_timer_start (EV_P_ struct ev_timer *w)
950	{	1307	{
951	if (ev_is_active (w))	1308	if (ev_is_active (w))
952	return;	1309	return;
953		1310
954	w->at += now;	1311	((WT)w)->at += mn_now;
955		1312
956	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1313	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
957		1314
958	ev_start ((W)w, ++timercnt);	1315	ev_start (EV_A_ (W)w, ++timercnt);
959	array_needsize (timers, timermax, timercnt, );	1316	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
960	timers [timercnt - 1] = w;	1317	timers [timercnt - 1] = w;
961	upheap ((WT *)timers, timercnt - 1);	1318	upheap ((WT *)timers, timercnt - 1);
962	}
963		1319
		1320	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1321	}
		1322
964	void	1323	void
965	ev_timer_stop (struct ev_timer *w)	1324	ev_timer_stop (EV_P_ struct ev_timer *w)
966	{	1325	{
967	ev_clear_pending ((W)w);	1326	ev_clear_pending (EV_A_ (W)w);
968	if (!ev_is_active (w))	1327	if (!ev_is_active (w))
969	return;	1328	return;
970		1329
		1330	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1331
971	if (w->active < timercnt--)	1332	if (((W)w)->active < timercnt--)
972	{	1333	{
973	timers [w->active - 1] = timers [timercnt];	1334	timers [((W)w)->active - 1] = timers [timercnt];
974	downheap ((WT *)timers, timercnt, w->active - 1);	1335	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
975	}	1336	}
976		1337
977	w->at = w->repeat;	1338	((WT)w)->at = w->repeat;
978		1339
979	ev_stop ((W)w);	1340	ev_stop (EV_A_ (W)w);
980	}	1341	}
981		1342
982	void	1343	void
983	ev_timer_again (struct ev_timer *w)	1344	ev_timer_again (EV_P_ struct ev_timer *w)
984	{	1345	{
985	if (ev_is_active (w))	1346	if (ev_is_active (w))
986	{	1347	{
987	if (w->repeat)	1348	if (w->repeat)
988	{
989	w->at = now + w->repeat;
990	downheap ((WT *)timers, timercnt, w->active - 1);	1349	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
991	}
992	else	1350	else
993	ev_timer_stop (w);	1351	ev_timer_stop (EV_A_ w);
994	}	1352	}
995	else if (w->repeat)	1353	else if (w->repeat)
996	ev_timer_start (w);	1354	ev_timer_start (EV_A_ w);
997	}	1355	}
998		1356
999	void	1357	void
1000	ev_periodic_start (struct ev_periodic *w)	1358	ev_periodic_start (EV_P_ struct ev_periodic *w)
1001	{	1359	{
1002	if (ev_is_active (w))	1360	if (ev_is_active (w))
1003	return;	1361	return;
1004		1362
		1363	if (w->reschedule_cb)
		1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1365	else if (w->interval)
		1366	{
1005	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1367	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1006
1007	/* this formula differs from the one in periodic_reify because we do not always round up */	1368	/* this formula differs from the one in periodic_reify because we do not always round up */
1008	if (w->interval)
1009	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1369	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1370	}
1010		1371
1011	ev_start ((W)w, ++periodiccnt);	1372	ev_start (EV_A_ (W)w, ++periodiccnt);
1012	array_needsize (periodics, periodicmax, periodiccnt, );	1373	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1013	periodics [periodiccnt - 1] = w;	1374	periodics [periodiccnt - 1] = w;
1014	upheap ((WT *)periodics, periodiccnt - 1);	1375	upheap ((WT *)periodics, periodiccnt - 1);
1015	}
1016		1376
		1377	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1378	}
		1379
1017	void	1380	void
1018	ev_periodic_stop (struct ev_periodic *w)	1381	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1019	{	1382	{
1020	ev_clear_pending ((W)w);	1383	ev_clear_pending (EV_A_ (W)w);
1021	if (!ev_is_active (w))	1384	if (!ev_is_active (w))
1022	return;	1385	return;
1023		1386
		1387	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1388
1024	if (w->active < periodiccnt--)	1389	if (((W)w)->active < periodiccnt--)
1025	{	1390	{
1026	periodics [w->active - 1] = periodics [periodiccnt];	1391	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1027	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1392	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1028	}	1393	}
1029		1394
1030	ev_stop ((W)w);	1395	ev_stop (EV_A_ (W)w);
		1396	}
		1397
		1398	void
		1399	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1400	{
		1401	/* TODO: use adjustheap and recalculation */
		1402	ev_periodic_stop (EV_A_ w);
		1403	ev_periodic_start (EV_A_ w);
		1404	}
		1405
		1406	void
		1407	ev_idle_start (EV_P_ struct ev_idle *w)
		1408	{
		1409	if (ev_is_active (w))
		1410	return;
		1411
		1412	ev_start (EV_A_ (W)w, ++idlecnt);
		1413	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1414	idles [idlecnt - 1] = w;
		1415	}
		1416
		1417	void
		1418	ev_idle_stop (EV_P_ struct ev_idle *w)
		1419	{
		1420	ev_clear_pending (EV_A_ (W)w);
		1421	if (ev_is_active (w))
		1422	return;
		1423
		1424	idles [((W)w)->active - 1] = idles [--idlecnt];
		1425	ev_stop (EV_A_ (W)w);
		1426	}
		1427
		1428	void
		1429	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1430	{
		1431	if (ev_is_active (w))
		1432	return;
		1433
		1434	ev_start (EV_A_ (W)w, ++preparecnt);
		1435	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1436	prepares [preparecnt - 1] = w;
		1437	}
		1438
		1439	void
		1440	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1441	{
		1442	ev_clear_pending (EV_A_ (W)w);
		1443	if (ev_is_active (w))
		1444	return;
		1445
		1446	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1447	ev_stop (EV_A_ (W)w);
		1448	}
		1449
		1450	void
		1451	ev_check_start (EV_P_ struct ev_check *w)
		1452	{
		1453	if (ev_is_active (w))
		1454	return;
		1455
		1456	ev_start (EV_A_ (W)w, ++checkcnt);
		1457	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1458	checks [checkcnt - 1] = w;
		1459	}
		1460
		1461	void
		1462	ev_check_stop (EV_P_ struct ev_check *w)
		1463	{
		1464	ev_clear_pending (EV_A_ (W)w);
		1465	if (ev_is_active (w))
		1466	return;
		1467
		1468	checks [((W)w)->active - 1] = checks [--checkcnt];
		1469	ev_stop (EV_A_ (W)w);
1031	}	1470	}
1032		1471
1033	#ifndef SA_RESTART	1472	#ifndef SA_RESTART
1034	# define SA_RESTART 0	1473	# define SA_RESTART 0
1035	#endif	1474	#endif
1036		1475
1037	void	1476	void
1038	ev_signal_start (struct ev_signal *w)	1477	ev_signal_start (EV_P_ struct ev_signal *w)
1039	{	1478	{
		1479	#if EV_MULTIPLICITY
		1480	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1481	#endif
1040	if (ev_is_active (w))	1482	if (ev_is_active (w))
1041	return;	1483	return;
1042		1484
1043	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1485	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1044		1486
1045	ev_start ((W)w, 1);	1487	ev_start (EV_A_ (W)w, 1);
1046	array_needsize (signals, signalmax, w->signum, signals_init);	1488	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1047	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1489	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1048		1490
1049	if (!w->next)	1491	if (!((WL)w)->next)
1050	{	1492	{
		1493	#if WIN32
		1494	signal (w->signum, sighandler);
		1495	#else
1051	struct sigaction sa;	1496	struct sigaction sa;
1052	sa.sa_handler = sighandler;	1497	sa.sa_handler = sighandler;
1053	sigfillset (&sa.sa_mask);	1498	sigfillset (&sa.sa_mask);
1054	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1499	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1055	sigaction (w->signum, &sa, 0);	1500	sigaction (w->signum, &sa, 0);
		1501	#endif
1056	}	1502	}
1057	}	1503	}
1058		1504
1059	void	1505	void
1060	ev_signal_stop (struct ev_signal *w)	1506	ev_signal_stop (EV_P_ struct ev_signal *w)
1061	{	1507	{
1062	ev_clear_pending ((W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1063	if (!ev_is_active (w))	1509	if (!ev_is_active (w))
1064	return;	1510	return;
1065		1511
1066	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1512	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1067	ev_stop ((W)w);	1513	ev_stop (EV_A_ (W)w);
1068		1514
1069	if (!signals [w->signum - 1].head)	1515	if (!signals [w->signum - 1].head)
1070	signal (w->signum, SIG_DFL);	1516	signal (w->signum, SIG_DFL);
1071	}	1517	}
1072		1518
1073	void	1519	void
1074	ev_idle_start (struct ev_idle *w)	1520	ev_child_start (EV_P_ struct ev_child *w)
1075	{	1521	{
		1522	#if EV_MULTIPLICITY
		1523	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1524	#endif
1076	if (ev_is_active (w))	1525	if (ev_is_active (w))
1077	return;	1526	return;
1078		1527
1079	ev_start ((W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, 1);
1080	array_needsize (idles, idlemax, idlecnt, );	1529	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1081	idles [idlecnt - 1] = w;
1082	}	1530	}
1083		1531
1084	void	1532	void
1085	ev_idle_stop (struct ev_idle *w)	1533	ev_child_stop (EV_P_ struct ev_child *w)
1086	{	1534	{
1087	ev_clear_pending ((W)w);	1535	ev_clear_pending (EV_A_ (W)w);
1088	if (ev_is_active (w))	1536	if (ev_is_active (w))
1089	return;	1537	return;
1090		1538
1091	idles [w->active - 1] = idles [--idlecnt];
1092	ev_stop ((W)w);
1093	}
1094
1095	void
1096	ev_prepare_start (struct ev_prepare *w)
1097	{
1098	if (ev_is_active (w))
1099	return;
1100
1101	ev_start ((W)w, ++preparecnt);
1102	array_needsize (prepares, preparemax, preparecnt, );
1103	prepares [preparecnt - 1] = w;
1104	}
1105
1106	void
1107	ev_prepare_stop (struct ev_prepare *w)
1108	{
1109	ev_clear_pending ((W)w);
1110	if (ev_is_active (w))
1111	return;
1112
1113	prepares [w->active - 1] = prepares [--preparecnt];
1114	ev_stop ((W)w);
1115	}
1116
1117	void
1118	ev_check_start (struct ev_check *w)
1119	{
1120	if (ev_is_active (w))
1121	return;
1122
1123	ev_start ((W)w, ++checkcnt);
1124	array_needsize (checks, checkmax, checkcnt, );
1125	checks [checkcnt - 1] = w;
1126	}
1127
1128	void
1129	ev_check_stop (struct ev_check *w)
1130	{
1131	ev_clear_pending ((W)w);
1132	if (ev_is_active (w))
1133	return;
1134
1135	checks [w->active - 1] = checks [--checkcnt];
1136	ev_stop ((W)w);
1137	}
1138
1139	void
1140	ev_child_start (struct ev_child *w)
1141	{
1142	if (ev_is_active (w))
1143	return;
1144
1145	ev_start ((W)w, 1);
1146	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1147	}
1148
1149	void
1150	ev_child_stop (struct ev_child *w)
1151	{
1152	ev_clear_pending ((W)w);
1153	if (ev_is_active (w))
1154	return;
1155
1156	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1539	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1157	ev_stop ((W)w);	1540	ev_stop (EV_A_ (W)w);
1158	}	1541	}
1159		1542
1160	/*****************************************************************************/	1543	/*****************************************************************************/
1161		1544
1162	struct ev_once	1545	struct ev_once
…		…
1166	void (cb)(int revents, void arg);	1549	void (cb)(int revents, void arg);
1167	void *arg;	1550	void *arg;
1168	};	1551	};
1169		1552
1170	static void	1553	static void
1171	once_cb (struct ev_once *once, int revents)	1554	once_cb (EV_P_ struct ev_once *once, int revents)
1172	{	1555	{
1173	void (cb)(int revents, void arg) = once->cb;	1556	void (cb)(int revents, void arg) = once->cb;
1174	void *arg = once->arg;	1557	void *arg = once->arg;
1175		1558
1176	ev_io_stop (&once->io);	1559	ev_io_stop (EV_A_ &once->io);
1177	ev_timer_stop (&once->to);	1560	ev_timer_stop (EV_A_ &once->to);
1178	free (once);	1561	ev_free (once);
1179		1562
1180	cb (revents, arg);	1563	cb (revents, arg);
1181	}	1564	}
1182		1565
1183	static void	1566	static void
1184	once_cb_io (struct ev_io *w, int revents)	1567	once_cb_io (EV_P_ struct ev_io *w, int revents)
1185	{	1568	{
1186	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1569	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1187	}	1570	}
1188		1571
1189	static void	1572	static void
1190	once_cb_to (struct ev_timer *w, int revents)	1573	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1191	{	1574	{
1192	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1575	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1193	}	1576	}
1194		1577
1195	void	1578	void
1196	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1579	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1197	{	1580	{
1198	struct ev_once *once = malloc (sizeof (struct ev_once));	1581	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1199		1582
1200	if (!once)	1583	if (!once)
1201	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1584	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1202	else	1585	else
1203	{	1586	{
1204	once->cb = cb;	1587	once->cb = cb;
1205	once->arg = arg;	1588	once->arg = arg;
1206		1589
1207	ev_watcher_init (&once->io, once_cb_io);	1590	ev_init (&once->io, once_cb_io);
1208	if (fd >= 0)	1591	if (fd >= 0)
1209	{	1592	{
1210	ev_io_set (&once->io, fd, events);	1593	ev_io_set (&once->io, fd, events);
1211	ev_io_start (&once->io);	1594	ev_io_start (EV_A_ &once->io);
1212	}	1595	}
1213		1596
1214	ev_watcher_init (&once->to, once_cb_to);	1597	ev_init (&once->to, once_cb_to);
1215	if (timeout >= 0.)	1598	if (timeout >= 0.)
1216	{	1599	{
1217	ev_timer_set (&once->to, timeout, 0.);	1600	ev_timer_set (&once->to, timeout, 0.);
1218	ev_timer_start (&once->to);	1601	ev_timer_start (EV_A_ &once->to);
1219	}	1602	}
1220	}	1603	}
1221	}	1604	}
1222		1605
1223	/*****************************************************************************/	1606	#ifdef __cplusplus
1224
1225	#if 0
1226
1227	struct ev_io wio;
1228
1229	static void
1230	sin_cb (struct ev_io *w, int revents)
1231	{
1232	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1233	}	1607	}
1234
1235	static void
1236	ocb (struct ev_timer *w, int revents)
1237	{
1238	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1239	ev_timer_stop (w);
1240	ev_timer_start (w);
1241	}
1242
1243	static void
1244	scb (struct ev_signal *w, int revents)
1245	{
1246	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1247	ev_io_stop (&wio);
1248	ev_io_start (&wio);
1249	}
1250
1251	static void
1252	gcb (struct ev_signal *w, int revents)
1253	{
1254	fprintf (stderr, "generic %x\n", revents);
1255
1256	}
1257
1258	int main (void)
1259	{
1260	ev_init (0);
1261
1262	ev_io_init (&wio, sin_cb, 0, EV_READ);
1263	ev_io_start (&wio);
1264
1265	struct ev_timer t[10000];
1266
1267	#if 0
1268	int i;
1269	for (i = 0; i < 10000; ++i)
1270	{
1271	struct ev_timer *w = t + i;
1272	ev_watcher_init (w, ocb, i);
1273	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1274	ev_timer_start (w);
1275	if (drand48 () < 0.5)
1276	ev_timer_stop (w);
1277	}
1278	#endif	1608	#endif
1279		1609
1280	struct ev_timer t1;
1281	ev_timer_init (&t1, ocb, 5, 10);
1282	ev_timer_start (&t1);
1283
1284	struct ev_signal sig;
1285	ev_signal_init (&sig, scb, SIGQUIT);
1286	ev_signal_start (&sig);
1287
1288	struct ev_check cw;
1289	ev_check_init (&cw, gcb);
1290	ev_check_start (&cw);
1291
1292	struct ev_idle iw;
1293	ev_idle_init (&iw, gcb);
1294	ev_idle_start (&iw);
1295
1296	ev_loop (0);
1297
1298	return 0;
1299	}
1300
1301	#endif
1302
1303
1304
1305

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Comparing libev/ev.c (file contents): Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs. Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs.
Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC