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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.92 by root, Sun Nov 11 00:08:54 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# define EV_USE_MONOTONIC 1
		41	# define EV_USE_REALTIME 1
		42	# endif
		43
		44	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		45	# define EV_USE_SELECT 1
		46	# endif
		47
		48	# if HAVE_POLL && HAVE_POLL_H
		49	# define EV_USE_POLL 1
		50	# endif
		51
		52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		53	# define EV_USE_EPOLL 1
		54	# endif
		55
		56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		57	# define EV_USE_KQUEUE 1
		58	# endif
		59
33	#endif	60	#endif
34		61
35	#include <math.h>	62	#include <math.h>
36	#include <stdlib.h>	63	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	64	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	65	#include <stddef.h>
41		66
42	#include <stdio.h>	67	#include <stdio.h>
43		68
44	#include <assert.h>	69	#include <assert.h>
45	#include <errno.h>	70	#include <errno.h>
46	#include <sys/types.h>	71	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	72	#include <time.h>
50		73
		74	#include <signal.h>
		75
		76	#ifndef WIN32
		77	# include <unistd.h>
		78	# include <sys/time.h>
		79	# include <sys/wait.h>
		80	#endif
51	/**/	81	/**/
52		82
53	#ifndef EV_USE_MONOTONIC	83	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	84	# define EV_USE_MONOTONIC 1
55	#endif	85	#endif
…		…
66	# define EV_USE_EPOLL 0	96	# define EV_USE_EPOLL 0
67	#endif	97	#endif
68		98
69	#ifndef EV_USE_KQUEUE	99	#ifndef EV_USE_KQUEUE
70	# 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
71	#endif	111	#endif
72		112
73	#ifndef EV_USE_REALTIME	113	#ifndef EV_USE_REALTIME
74	# define EV_USE_REALTIME 1	114	# define EV_USE_REALTIME 1
75	#endif	115	#endif
…		…
91	#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) */
92	#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) */
93	#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 */
94	/#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 */
95		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
96	#include "ev.h"	139	# include "ev.h"
		140	#endif
97		141
98	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
99	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
100	# define inline inline	144	# define inline inline
101	#else	145	#else
…		…
111		155
112	typedef struct ev_watcher *W;	156	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
115		159
116	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
117	ev_tstamp ev_now;	243	ev_tstamp ev_rt_now;
118	int ev_method;	244	#define VAR(name,decl) static decl;
		245	#include "ev_vars.h"
		246	#undef VAR
119		247
120	static int have_monotonic; /* runtime */	248	static int default_loop;
121		249
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	250	#endif
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125		251
126	/*****************************************************************************/	252	/*****************************************************************************/
127		253
128	ev_tstamp	254	ev_tstamp
129	ev_time (void)	255	ev_time (void)
…		…
137	gettimeofday (&tv, 0);	263	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	264	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	265	#endif
140	}	266	}
141		267
142	static ev_tstamp	268	inline ev_tstamp
143	get_clock (void)	269	get_clock (void)
144	{	270	{
145	#if EV_USE_MONOTONIC	271	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	272	if (expect_true (have_monotonic))
147	{	273	{
…		…
152	#endif	278	#endif
153		279
154	return ev_time ();	280	return ev_time ();
155	}	281	}
156		282
		283	#if EV_MULTIPLICITY
		284	ev_tstamp
		285	ev_now (EV_P)
		286	{
		287	return ev_rt_now;
		288	}
		289	#endif
		290
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	291	#define array_roundsize(type,n) ((n) \| 4 & ~3)
158		292
159	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
160	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
161	{ \	295	{ \
162	int newcnt = cur; \	296	int newcnt = cur; \
163	do \	297	do \
164	{ \	298	{ \
165	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
166	} \	300	} \
167	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
168	\	302	\
169	base = realloc (base, sizeof (base) (newcnt)); \	303	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
170	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
171	cur = newcnt; \	305	cur = newcnt; \
172	}	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;
173		323
174	/*****************************************************************************/	324	/*****************************************************************************/
175
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185		325
186	static void	326	static void
187	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
188	{	328	{
189	while (count--)	329	while (count--)
…		…
194		334
195	++base;	335	++base;
196	}	336	}
197	}	337	}
198		338
199	typedef struct	339	void
		340	ev_feed_event (EV_P_ void *w, int revents)
200	{	341	{
201	W w;	342	W w_ = (W)w;
202	int events;
203	} ANPENDING;
204		343
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void
209	event (W w, int events)
210	{
211	if (w->pending)	344	if (w_->pending)
212	{	345	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
214	return;	347	return;
215	}	348	}
216		349
217	w->pending = ++pendingcnt [ABSPRI (w)];	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
218	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));
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
221	}	354	}
222		355
223	static void	356	static void
224	queue_events (W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	358	{
226	int i;	359	int i;
227		360
228	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
230	}	363	}
231		364
232	static void	365	inline void
233	fd_event (int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
234	{	367	{
235	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	369	struct ev_io *w;
237		370
238	for (w = anfd->head; w; w = w->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	372	{
240	int ev = w->events & events;	373	int ev = w->events & revents;
241		374
242	if (ev)	375	if (ev)
243	event ((W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
244	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
245	}	384	}
246		385
247	/*****************************************************************************/	386	/*****************************************************************************/
248		387
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	388	static void
253	fd_reify (void)	389	fd_reify (EV_P)
254	{	390	{
255	int i;	391	int i;
256		392
257	for (i = 0; i < fdchangecnt; ++i)	393	for (i = 0; i < fdchangecnt; ++i)
258	{	394	{
…		…
260	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	397	struct ev_io *w;
262		398
263	int events = 0;	399	int events = 0;
264		400
265	for (w = anfd->head; w; w = w->next)	401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	402	events \|= w->events;
267		403
268	anfd->reify = 0;	404	anfd->reify = 0;
269		405
270	if (anfd->events != events)
271	{
272	method_modify (fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	407	anfd->events = events;
274	}
275	}	408	}
276		409
277	fdchangecnt = 0;	410	fdchangecnt = 0;
278	}	411	}
279		412
280	static void	413	static void
281	fd_change (int fd)	414	fd_change (EV_P_ int fd)
282	{	415	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	416	if (anfds [fd].reify)
284	return;	417	return;
285		418
286	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
287		420
288	++fdchangecnt;	421	++fdchangecnt;
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
290	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
291	}	424	}
292		425
293	static void	426	static void
294	fd_kill (int fd)	427	fd_kill (EV_P_ int fd)
295	{	428	{
296	struct ev_io *w;	429	struct ev_io *w;
297		430
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	431	while ((w = (struct ev_io *)anfds [fd].head))
300	{	432	{
301	ev_io_stop (w);	433	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	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
304	}	446	}
305		447
306	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
307	static void	449	static void
308	fd_ebadf (void)	450	fd_ebadf (EV_P)
309	{	451	{
310	int fd;	452	int fd;
311		453
312	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	455	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
315	fd_kill (fd);	457	fd_kill (EV_A_ fd);
316	}	458	}
317		459
318	/* 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 */
319	static void	461	static void
320	fd_enomem (void)	462	fd_enomem (EV_P)
321	{	463	{
322	int fd = anfdmax;	464	int fd;
323		465
324	while (fd--)	466	for (fd = anfdmax; fd--; )
325	if (anfds [fd].events)	467	if (anfds [fd].events)
326	{	468	{
327	close (fd);
328	fd_kill (fd);	469	fd_kill (EV_A_ fd);
329	return;	470	return;
330	}	471	}
331	}	472	}
332		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
333	/*****************************************************************************/	489	/*****************************************************************************/
334		490
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340
341	static void	491	static void
342	upheap (WT *timers, int k)	492	upheap (WT *heap, int k)
343	{	493	{
344	WT w = timers [k];	494	WT w = heap [k];
345		495
346	while (k && timers [k >> 1]->at > w->at)	496	while (k && heap [k >> 1]->at > w->at)
347	{	497	{
348	timers [k] = timers [k >> 1];	498	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
350	k >>= 1;	500	k >>= 1;
351	}	501	}
352		502
353	timers [k] = w;	503	heap [k] = w;
354	timers [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
355		505
356	}	506	}
357		507
358	static void	508	static void
359	downheap (WT *timers, int N, int k)	509	downheap (WT *heap, int N, int k)
360	{	510	{
361	WT w = timers [k];	511	WT w = heap [k];
362		512
363	while (k < (N >> 1))	513	while (k < (N >> 1))
364	{	514	{
365	int j = k << 1;	515	int j = k << 1;
366		516
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	517	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	518	++j;
369		519
370	if (w->at <= timers [j]->at)	520	if (w->at <= heap [j]->at)
371	break;	521	break;
372		522
373	timers [k] = timers [j];	523	heap [k] = heap [j];
374	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
375	k = j;	525	k = j;
376	}	526	}
377		527
378	timers [k] = w;	528	heap [k] = w;
379	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);
380	}	542	}
381		543
382	/*****************************************************************************/	544	/*****************************************************************************/
383		545
384	typedef struct	546	typedef struct
385	{	547	{
386	struct ev_signal *head;	548	WL head;
387	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
388	} ANSIG;	550	} ANSIG;
389		551
390	static ANSIG *signals;	552	static ANSIG *signals;
391	static int signalmax;	553	static int signalmax;
…		…
407	}	569	}
408		570
409	static void	571	static void
410	sighandler (int signum)	572	sighandler (int signum)
411	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
412	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
413		579
414	if (!gotsig)	580	if (!gotsig)
415	{	581	{
		582	int old_errno = errno;
416	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
417	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
		589	errno = old_errno;
418	}	590	}
419	}	591	}
420		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
421	static void	613	static void
422	sigcb (struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	615	{
424	struct ev_signal *w;
425	int signum;	616	int signum;
426		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
427	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
428	gotsig = 0;	623	gotsig = 0;
429		624
430	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
431	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
432	{	627	ev_feed_signal_event (EV_A_ signum + 1);
433	signals [signum].gotsig = 0;
434
435	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);
437	}
438	}	628	}
439		629
440	static void	630	static void
441	siginit (void)	631	siginit (EV_P)
442	{	632	{
		633	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		636
446	/* rather than sort out wether we really need nb, set it */	637	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		640	#endif
449		641
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	642	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	643	ev_io_start (EV_A_ &sigev);
		644	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	645	}
453		646
454	/*****************************************************************************/	647	/*****************************************************************************/
455		648
456	static struct ev_idle **idles;
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];	649	static struct ev_child *childs [PID_HASHSIZE];
		650
		651	#ifndef WIN32
		652
468	static struct ev_signal childev;	653	static struct ev_signal childev;
469		654
470	#ifndef WCONTINUED	655	#ifndef WCONTINUED
471	# define WCONTINUED 0	656	# define WCONTINUED 0
472	#endif	657	#endif
473		658
474	static void	659	static void
475	childcb (struct ev_signal *sw, int revents)	660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	661	{
477	struct ev_child *w;	662	struct ev_child *w;
		663
		664	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		665	if (w->pid == pid \|\| !w->pid)
		666	{
		667	ev_priority (w) = ev_priority (sw); /* need to do it now */
		668	w->rpid = pid;
		669	w->rstatus = status;
		670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		671	}
		672	}
		673
		674	static void
		675	childcb (EV_P_ struct ev_signal *sw, int revents)
		676	{
478	int pid, status;	677	int pid, status;
479		678
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	680	{
482	if (w->pid == pid \|\| !w->pid)	681	/* make sure we are called again until all childs have been reaped */
483	{	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	683
485	event ((W)w, EV_CHILD);	684	child_reap (EV_A_ sw, pid, pid, status);
486	}	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		686	}
487	}	687	}
		688
		689	#endif
488		690
489	/*****************************************************************************/	691	/*****************************************************************************/
490		692
491	#if EV_USE_KQUEUE	693	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	694	# include "ev_kqueue.c"
…		…
511	ev_version_minor (void)	713	ev_version_minor (void)
512	{	714	{
513	return EV_VERSION_MINOR;	715	return EV_VERSION_MINOR;
514	}	716	}
515		717
516	/* 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 */
517	static int	719	static int
518	enable_secure ()	720	enable_secure (void)
519	{	721	{
		722	#ifdef WIN32
		723	return 0;
		724	#else
520	return getuid () != geteuid ()	725	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	726	\|\| getgid () != getegid ();
		727	#endif
522	}	728	}
523		729
524	int ev_init (int methods)	730	int
		731	ev_method (EV_P)
525	{	732	{
		733	return method;
		734	}
		735
		736	static void
		737	loop_init (EV_P_ int methods)
		738	{
526	if (!ev_method)	739	if (!method)
527	{	740	{
528	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
529	{	742	{
530	struct timespec ts;	743	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	745	have_monotonic = 1;
533	}	746	}
534	#endif	747	#endif
535		748
536	ev_now = ev_time ();	749	ev_rt_now = ev_time ();
537	now = get_clock ();	750	mn_now = get_clock ();
538	now_floor = now;	751	now_floor = mn_now;
539	diff = ev_now - now;	752	rtmn_diff = ev_rt_now - mn_now;
540
541	if (pipe (sigpipe))
542	return 0;
543		753
544	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
547	else	757	else
548	methods = EVMETHOD_ANY;	758	methods = EVMETHOD_ANY;
549		759
550	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
551	#if EV_USE_KQUEUE	764	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	766	#endif
554	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	769	#endif
557	#if EV_USE_POLL	770	#if EV_USE_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	772	#endif
560	#if EV_USE_SELECT	773	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	775	#endif
563		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
564	if (ev_method)	897	if (ev_method (EV_A))
565	{	898	{
566	ev_watcher_init (&sigev, sigcb);
567	siginit ();	899	siginit (EV_A);
568		900
		901	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	902	ev_signal_init (&childev, childcb, SIGCHLD);
		903	ev_set_priority (&childev, EV_MAXPRI);
570	ev_signal_start (&childev);	904	ev_signal_start (EV_A_ &childev);
		905	ev_unref (EV_A); /* child watcher should not keep loop alive */
		906	#endif
571	}	907	}
		908	else
		909	default_loop = 0;
572	}	910	}
573		911
574	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;
575	}	945	}
576		946
577	/*****************************************************************************/	947	/*****************************************************************************/
578		948
579	void
580	ev_fork_prepare (void)
581	{
582	/* nop */
583	}
584
585	void
586	ev_fork_parent (void)
587	{
588	/* nop */
589	}
590
591	void
592	ev_fork_child (void)
593	{
594	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();
597	#endif
598
599	ev_io_stop (&sigev);
600	close (sigpipe [0]);
601	close (sigpipe [1]);
602	pipe (sigpipe);
603	siginit ();
604	}
605
606	/*****************************************************************************/
607
608	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
609	call_pending (void)	962	call_pending (EV_P)
610	{	963	{
611	int pri;	964	int pri;
612		965
613	for (pri = NUMPRI; pri--; )	966	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	967	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		970
618	if (p->w)	971	if (p->w)
619	{	972	{
620	p->w->pending = 0;	973	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	974	EV_CB_INVOKE (p->w, p->events);
622	}	975	}
623	}	976	}
624	}	977	}
625		978
626	static void	979	static void
627	timers_reify (void)	980	timers_reify (EV_P)
628	{	981	{
629	while (timercnt && timers [0]->at <= now)	982	while (timercnt && ((WT)timers [0])->at <= mn_now)
630	{	983	{
631	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)));
632		987
633	/* first reschedule or stop timer */	988	/* first reschedule or stop timer */
634	if (w->repeat)	989	if (w->repeat)
635	{	990	{
636	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.));
		992
637	w->at = now + w->repeat;	993	((WT)w)->at += w->repeat;
		994	if (((WT)w)->at < mn_now)
		995	((WT)w)->at = mn_now;
		996
638	downheap ((WT *)timers, timercnt, 0);	997	downheap ((WT *)timers, timercnt, 0);
639	}	998	}
640	else	999	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	1000	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		1001
643	event ((W)w, EV_TIMEOUT);	1002	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
644	}	1003	}
645	}	1004	}
646		1005
647	static void	1006	static void
648	periodics_reify (void)	1007	periodics_reify (EV_P)
649	{	1008	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	1009	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
651	{	1010	{
652	struct ev_periodic *w = periodics [0];	1011	struct ev_periodic *w = periodics [0];
653		1012
		1013	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1014
654	/* first reschedule or stop timer */	1015	/* first reschedule or stop timer */
655	if (w->interval)	1016	if (w->reschedule_cb)
656	{	1017	{
		1018	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1019
		1020	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1021	downheap ((WT *)periodics, periodiccnt, 0);
		1022	}
		1023	else if (w->interval)
		1024	{
657	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1025	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
658	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1026	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
659	downheap ((WT *)periodics, periodiccnt, 0);	1027	downheap ((WT *)periodics, periodiccnt, 0);
660	}	1028	}
661	else	1029	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	1030	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		1031
664	event ((W)w, EV_PERIODIC);	1032	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
665	}	1033	}
666	}	1034	}
667		1035
668	static void	1036	static void
669	periodics_reschedule (ev_tstamp diff)	1037	periodics_reschedule (EV_P)
670	{	1038	{
671	int i;	1039	int i;
672		1040
673	/* adjust periodics after time jump */	1041	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	1042	for (i = 0; i < periodiccnt; ++i)
675	{	1043	{
676	struct ev_periodic *w = periodics [i];	1044	struct ev_periodic *w = periodics [i];
677		1045
		1046	if (w->reschedule_cb)
		1047	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
678	if (w->interval)	1048	else if (w->interval)
679	{
680	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1049	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
681
682	if (fabs (diff) >= 1e-4)
683	{
684	ev_periodic_stop (w);
685	ev_periodic_start (w);
686
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}
689	}
690	}	1050	}
691	}
692		1051
693	static int	1052	/* now rebuild the heap */
		1053	for (i = periodiccnt >> 1; i--; )
		1054	downheap ((WT *)periodics, periodiccnt, i);
		1055	}
		1056
		1057	inline int
694	time_update_monotonic (void)	1058	time_update_monotonic (EV_P)
695	{	1059	{
696	now = get_clock ();	1060	mn_now = get_clock ();
697		1061
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1062	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	1063	{
700	ev_now = now + diff;	1064	ev_rt_now = rtmn_diff + mn_now;
701	return 0;	1065	return 0;
702	}	1066	}
703	else	1067	else
704	{	1068	{
705	now_floor = now;	1069	now_floor = mn_now;
706	ev_now = ev_time ();	1070	ev_rt_now = ev_time ();
707	return 1;	1071	return 1;
708	}	1072	}
709	}	1073	}
710		1074
711	static void	1075	static void
712	time_update (void)	1076	time_update (EV_P)
713	{	1077	{
714	int i;	1078	int i;
715		1079
716	#if EV_USE_MONOTONIC	1080	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1081	if (expect_true (have_monotonic))
718	{	1082	{
719	if (time_update_monotonic ())	1083	if (time_update_monotonic (EV_A))
720	{	1084	{
721	ev_tstamp odiff = diff;	1085	ev_tstamp odiff = rtmn_diff;
722		1086
723	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1087	for (i = 4; --i; ) /* loop a few times, before making important decisions */
724	{	1088	{
725	diff = ev_now - now;	1089	rtmn_diff = ev_rt_now - mn_now;
726		1090
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1091	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	1092	return; /* all is well */
729		1093
730	ev_now = ev_time ();	1094	ev_rt_now = ev_time ();
731	now = get_clock ();	1095	mn_now = get_clock ();
732	now_floor = now;	1096	now_floor = mn_now;
733	}	1097	}
734		1098
735	periodics_reschedule (diff - odiff);	1099	periodics_reschedule (EV_A);
736	/* no timer adjustment, as the monotonic clock doesn't jump */	1100	/* no timer adjustment, as the monotonic clock doesn't jump */
		1101	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
737	}	1102	}
738	}	1103	}
739	else	1104	else
740	#endif	1105	#endif
741	{	1106	{
742	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
743		1108
744	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1109	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
745	{	1110	{
746	periodics_reschedule (ev_now - now);	1111	periodics_reschedule (EV_A);
747		1112
748	/* adjust timers. this is easy, as the offset is the same for all */	1113	/* adjust timers. this is easy, as the offset is the same for all */
749	for (i = 0; i < timercnt; ++i)	1114	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	1115	((WT)timers [i])->at += ev_rt_now - mn_now;
751	}	1116	}
752		1117
753	now = ev_now;	1118	mn_now = ev_rt_now;
754	}	1119	}
755	}	1120	}
756		1121
757	int ev_loop_done;	1122	void
		1123	ev_ref (EV_P)
		1124	{
		1125	++activecnt;
		1126	}
758		1127
		1128	void
		1129	ev_unref (EV_P)
		1130	{
		1131	--activecnt;
		1132	}
		1133
		1134	static int loop_done;
		1135
		1136	void
759	void ev_loop (int flags)	1137	ev_loop (EV_P_ int flags)
760	{	1138	{
761	double block;	1139	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1140	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		1141
764	do	1142	do
765	{	1143	{
766	/* queue check watchers (and execute them) */	1144	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	1145	if (expect_false (preparecnt))
768	{	1146	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1147	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	1148	call_pending (EV_A);
771	}	1149	}
772		1150
		1151	/* we might have forked, so reify kernel state if necessary */
		1152	if (expect_false (postfork))
		1153	loop_fork (EV_A);
		1154
773	/* update fd-related kernel structures */	1155	/* update fd-related kernel structures */
774	fd_reify ();	1156	fd_reify (EV_A);
775		1157
776	/* calculate blocking time */	1158	/* calculate blocking time */
777		1159
778	/* we only need this for !monotonic clockor timers, but as we basically	1160	/* we only need this for !monotonic clock or timers, but as we basically
779	always have timers, we just calculate it always */	1161	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	1162	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	1163	if (expect_true (have_monotonic))
782	time_update_monotonic ();	1164	time_update_monotonic (EV_A);
783	else	1165	else
784	#endif	1166	#endif
785	{	1167	{
786	ev_now = ev_time ();	1168	ev_rt_now = ev_time ();
787	now = ev_now;	1169	mn_now = ev_rt_now;
788	}	1170	}
789		1171
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1172	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	1173	block = 0.;
792	else	1174	else
793	{	1175	{
794	block = MAX_BLOCKTIME;	1176	block = MAX_BLOCKTIME;
795		1177
796	if (timercnt)	1178	if (timercnt)
797	{	1179	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	1180	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
799	if (block > to) block = to;	1181	if (block > to) block = to;
800	}	1182	}
801		1183
802	if (periodiccnt)	1184	if (periodiccnt)
803	{	1185	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1186	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
805	if (block > to) block = to;	1187	if (block > to) block = to;
806	}	1188	}
807		1189
808	if (block < 0.) block = 0.;	1190	if (block < 0.) block = 0.;
809	}	1191	}
810		1192
811	method_poll (block);	1193	method_poll (EV_A_ block);
812		1194
813	/* update ev_now, do magic */	1195	/* update ev_rt_now, do magic */
814	time_update ();	1196	time_update (EV_A);
815		1197
816	/* queue pending timers and reschedule them */	1198	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	1199	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	1200	periodics_reify (EV_A); /* absolute timers called first */
819		1201
820	/* queue idle watchers unless io or timers are pending */	1202	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	1203	if (idlecnt && !any_pending (EV_A))
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	1204	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		1205
824	/* queue check watchers, to be executed first */	1206	/* queue check watchers, to be executed first */
825	if (checkcnt)	1207	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	1208	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		1209
828	call_pending ();	1210	call_pending (EV_A);
829	}	1211	}
830	while (!ev_loop_done);	1212	while (activecnt && !loop_done);
831		1213
832	if (ev_loop_done != 2)	1214	if (loop_done != 2)
833	ev_loop_done = 0;	1215	loop_done = 0;
		1216	}
		1217
		1218	void
		1219	ev_unloop (EV_P_ int how)
		1220	{
		1221	loop_done = how;
834	}	1222	}
835		1223
836	/*****************************************************************************/	1224	/*****************************************************************************/
837		1225
838	static void	1226	inline void
839	wlist_add (WL *head, WL elem)	1227	wlist_add (WL *head, WL elem)
840	{	1228	{
841	elem->next = *head;	1229	elem->next = *head;
842	*head = elem;	1230	*head = elem;
843	}	1231	}
844		1232
845	static void	1233	inline void
846	wlist_del (WL *head, WL elem)	1234	wlist_del (WL *head, WL elem)
847	{	1235	{
848	while (*head)	1236	while (*head)
849	{	1237	{
850	if (*head == elem)	1238	if (*head == elem)
…		…
855		1243
856	head = &(*head)->next;	1244	head = &(*head)->next;
857	}	1245	}
858	}	1246	}
859		1247
860	static void	1248	inline void
861	ev_clear_pending (W w)	1249	ev_clear_pending (EV_P_ W w)
862	{	1250	{
863	if (w->pending)	1251	if (w->pending)
864	{	1252	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1253	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	1254	w->pending = 0;
867	}	1255	}
868	}	1256	}
869		1257
870	static void	1258	inline void
871	ev_start (W w, int active)	1259	ev_start (EV_P_ W w, int active)
872	{	1260	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1261	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1262	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		1263
876	w->active = active;	1264	w->active = active;
		1265	ev_ref (EV_A);
877	}	1266	}
878		1267
879	static void	1268	inline void
880	ev_stop (W w)	1269	ev_stop (EV_P_ W w)
881	{	1270	{
		1271	ev_unref (EV_A);
882	w->active = 0;	1272	w->active = 0;
883	}	1273	}
884		1274
885	/*****************************************************************************/	1275	/*****************************************************************************/
886		1276
887	void	1277	void
888	ev_io_start (struct ev_io *w)	1278	ev_io_start (EV_P_ struct ev_io *w)
889	{	1279	{
890	int fd = w->fd;	1280	int fd = w->fd;
891		1281
892	if (ev_is_active (w))	1282	if (ev_is_active (w))
893	return;	1283	return;
894		1284
895	assert (("ev_io_start called with negative fd", fd >= 0));	1285	assert (("ev_io_start called with negative fd", fd >= 0));
896		1286
897	ev_start ((W)w, 1);	1287	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1288	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1289	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		1290
901	fd_change (fd);	1291	fd_change (EV_A_ fd);
902	}	1292	}
903		1293
904	void	1294	void
905	ev_io_stop (struct ev_io *w)	1295	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1296	{
907	ev_clear_pending ((W)w);	1297	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1298	if (!ev_is_active (w))
909	return;	1299	return;
910		1300
		1301	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1302
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1303	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1304	ev_stop (EV_A_ (W)w);
913		1305
914	fd_change (w->fd);	1306	fd_change (EV_A_ w->fd);
915	}	1307	}
916		1308
917	void	1309	void
918	ev_timer_start (struct ev_timer *w)	1310	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1311	{
920	if (ev_is_active (w))	1312	if (ev_is_active (w))
921	return;	1313	return;
922		1314
923	w->at += now;	1315	((WT)w)->at += mn_now;
924		1316
925	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1317	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
926		1318
927	ev_start ((W)w, ++timercnt);	1319	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1320	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
929	timers [timercnt - 1] = w;	1321	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1322	upheap ((WT *)timers, timercnt - 1);
931	}
932		1323
		1324	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1325	}
		1326
933	void	1327	void
934	ev_timer_stop (struct ev_timer *w)	1328	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1329	{
936	ev_clear_pending ((W)w);	1330	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1331	if (!ev_is_active (w))
938	return;	1332	return;
939		1333
		1334	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1335
940	if (w->active < timercnt--)	1336	if (((W)w)->active < timercnt--)
941	{	1337	{
942	timers [w->active - 1] = timers [timercnt];	1338	timers [((W)w)->active - 1] = timers [timercnt];
943	downheap ((WT *)timers, timercnt, w->active - 1);	1339	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
944	}	1340	}
945		1341
946	w->at = w->repeat;	1342	((WT)w)->at -= mn_now;
947		1343
948	ev_stop ((W)w);	1344	ev_stop (EV_A_ (W)w);
949	}	1345	}
950		1346
951	void	1347	void
952	ev_timer_again (struct ev_timer *w)	1348	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1349	{
954	if (ev_is_active (w))	1350	if (ev_is_active (w))
955	{	1351	{
956	if (w->repeat)	1352	if (w->repeat)
957	{
958	w->at = now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
960	}
961	else	1354	else
962	ev_timer_stop (w);	1355	ev_timer_stop (EV_A_ w);
963	}	1356	}
964	else if (w->repeat)	1357	else if (w->repeat)
965	ev_timer_start (w);	1358	ev_timer_start (EV_A_ w);
966	}	1359	}
967		1360
968	void	1361	void
969	ev_periodic_start (struct ev_periodic *w)	1362	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1363	{
971	if (ev_is_active (w))	1364	if (ev_is_active (w))
972	return;	1365	return;
973		1366
		1367	if (w->reschedule_cb)
		1368	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1369	else if (w->interval)
		1370	{
974	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1371	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
975
976	/* this formula differs from the one in periodic_reify because we do not always round up */	1372	/* this formula differs from the one in periodic_reify because we do not always round up */
977	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1373	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1374	}
979		1375
980	ev_start ((W)w, ++periodiccnt);	1376	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1377	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
982	periodics [periodiccnt - 1] = w;	1378	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1379	upheap ((WT *)periodics, periodiccnt - 1);
984	}
985		1380
		1381	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1382	}
		1383
986	void	1384	void
987	ev_periodic_stop (struct ev_periodic *w)	1385	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1386	{
989	ev_clear_pending ((W)w);	1387	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1388	if (!ev_is_active (w))
991	return;	1389	return;
992		1390
		1391	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1392
993	if (w->active < periodiccnt--)	1393	if (((W)w)->active < periodiccnt--)
994	{	1394	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1395	periodics [((W)w)->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1396	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
997	}	1397	}
998		1398
999	ev_stop ((W)w);	1399	ev_stop (EV_A_ (W)w);
1000	}	1400	}
1001		1401
1002	void	1402	void
		1403	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1404	{
		1405	/* TODO: use adjustheap and recalculation */
		1406	ev_periodic_stop (EV_A_ w);
		1407	ev_periodic_start (EV_A_ w);
		1408	}
		1409
		1410	void
1003	ev_signal_start (struct ev_signal *w)	1411	ev_idle_start (EV_P_ struct ev_idle *w)
1004	{	1412	{
1005	if (ev_is_active (w))	1413	if (ev_is_active (w))
1006	return;	1414	return;
1007		1415
		1416	ev_start (EV_A_ (W)w, ++idlecnt);
		1417	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1418	idles [idlecnt - 1] = w;
		1419	}
		1420
		1421	void
		1422	ev_idle_stop (EV_P_ struct ev_idle *w)
		1423	{
		1424	ev_clear_pending (EV_A_ (W)w);
		1425	if (ev_is_active (w))
		1426	return;
		1427
		1428	idles [((W)w)->active - 1] = idles [--idlecnt];
		1429	ev_stop (EV_A_ (W)w);
		1430	}
		1431
		1432	void
		1433	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1434	{
		1435	if (ev_is_active (w))
		1436	return;
		1437
		1438	ev_start (EV_A_ (W)w, ++preparecnt);
		1439	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1440	prepares [preparecnt - 1] = w;
		1441	}
		1442
		1443	void
		1444	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1445	{
		1446	ev_clear_pending (EV_A_ (W)w);
		1447	if (ev_is_active (w))
		1448	return;
		1449
		1450	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1451	ev_stop (EV_A_ (W)w);
		1452	}
		1453
		1454	void
		1455	ev_check_start (EV_P_ struct ev_check *w)
		1456	{
		1457	if (ev_is_active (w))
		1458	return;
		1459
		1460	ev_start (EV_A_ (W)w, ++checkcnt);
		1461	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1462	checks [checkcnt - 1] = w;
		1463	}
		1464
		1465	void
		1466	ev_check_stop (EV_P_ struct ev_check *w)
		1467	{
		1468	ev_clear_pending (EV_A_ (W)w);
		1469	if (ev_is_active (w))
		1470	return;
		1471
		1472	checks [((W)w)->active - 1] = checks [--checkcnt];
		1473	ev_stop (EV_A_ (W)w);
		1474	}
		1475
		1476	#ifndef SA_RESTART
		1477	# define SA_RESTART 0
		1478	#endif
		1479
		1480	void
		1481	ev_signal_start (EV_P_ struct ev_signal *w)
		1482	{
		1483	#if EV_MULTIPLICITY
		1484	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1485	#endif
		1486	if (ev_is_active (w))
		1487	return;
		1488
1008	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1489	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1009		1490
1010	ev_start ((W)w, 1);	1491	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1492	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1493	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1494
1014	if (!w->next)	1495	if (!((WL)w)->next)
1015	{	1496	{
		1497	#if WIN32
		1498	signal (w->signum, sighandler);
		1499	#else
1016	struct sigaction sa;	1500	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1501	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1502	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1503	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1504	sigaction (w->signum, &sa, 0);
		1505	#endif
1021	}	1506	}
1022	}	1507	}
1023		1508
1024	void	1509	void
1025	ev_signal_stop (struct ev_signal *w)	1510	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1511	{
1027	ev_clear_pending ((W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1513	if (!ev_is_active (w))
1029	return;	1514	return;
1030		1515
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1516	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1517	ev_stop (EV_A_ (W)w);
1033		1518
1034	if (!signals [w->signum - 1].head)	1519	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1520	signal (w->signum, SIG_DFL);
1036	}	1521	}
1037		1522
1038	void	1523	void
1039	ev_idle_start (struct ev_idle *w)	1524	ev_child_start (EV_P_ struct ev_child *w)
1040	{	1525	{
		1526	#if EV_MULTIPLICITY
		1527	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1528	#endif
1041	if (ev_is_active (w))	1529	if (ev_is_active (w))
1042	return;	1530	return;
1043		1531
1044	ev_start ((W)w, ++idlecnt);	1532	ev_start (EV_A_ (W)w, 1);
1045	array_needsize (idles, idlemax, idlecnt, );	1533	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1046	idles [idlecnt - 1] = w;
1047	}	1534	}
1048		1535
1049	void	1536	void
1050	ev_idle_stop (struct ev_idle *w)	1537	ev_child_stop (EV_P_ struct ev_child *w)
1051	{	1538	{
1052	ev_clear_pending ((W)w);	1539	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1540	if (ev_is_active (w))
1054	return;	1541	return;
1055		1542
1056	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);
1058	}
1059
1060	void
1061	ev_prepare_start (struct ev_prepare *w)
1062	{
1063	if (ev_is_active (w))
1064	return;
1065
1066	ev_start ((W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;
1069	}
1070
1071	void
1072	ev_prepare_stop (struct ev_prepare *w)
1073	{
1074	ev_clear_pending ((W)w);
1075	if (ev_is_active (w))
1076	return;
1077
1078	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);
1080	}
1081
1082	void
1083	ev_check_start (struct ev_check *w)
1084	{
1085	if (ev_is_active (w))
1086	return;
1087
1088	ev_start ((W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;
1091	}
1092
1093	void
1094	ev_check_stop (struct ev_check *w)
1095	{
1096	ev_clear_pending ((W)w);
1097	if (ev_is_active (w))
1098	return;
1099
1100	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);
1102	}
1103
1104	void
1105	ev_child_start (struct ev_child *w)
1106	{
1107	if (ev_is_active (w))
1108	return;
1109
1110	ev_start ((W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}
1113
1114	void
1115	ev_child_stop (struct ev_child *w)
1116	{
1117	ev_clear_pending ((W)w);
1118	if (ev_is_active (w))
1119	return;
1120
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1543	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1544	ev_stop (EV_A_ (W)w);
1123	}	1545	}
1124		1546
1125	/*****************************************************************************/	1547	/*****************************************************************************/
1126		1548
1127	struct ev_once	1549	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1553	void (cb)(int revents, void arg);
1132	void *arg;	1554	void *arg;
1133	};	1555	};
1134		1556
1135	static void	1557	static void
1136	once_cb (struct ev_once *once, int revents)	1558	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1559	{
1138	void (cb)(int revents, void arg) = once->cb;	1560	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1561	void *arg = once->arg;
1140		1562
1141	ev_io_stop (&once->io);	1563	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1564	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1565	ev_free (once);
1144		1566
1145	cb (revents, arg);	1567	cb (revents, arg);
1146	}	1568	}
1147		1569
1148	static void	1570	static void
1149	once_cb_io (struct ev_io *w, int revents)	1571	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1572	{
1151	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1573	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1152	}	1574	}
1153		1575
1154	static void	1576	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1577	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1578	{
1157	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1579	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1158	}	1580	}
1159		1581
1160	void	1582	void
1161	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1583	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1162	{	1584	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1585	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1164		1586
1165	if (!once)	1587	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1588	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1167	else	1589	else
1168	{	1590	{
1169	once->cb = cb;	1591	once->cb = cb;
1170	once->arg = arg;	1592	once->arg = arg;
1171		1593
1172	ev_watcher_init (&once->io, once_cb_io);	1594	ev_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1595	if (fd >= 0)
1174	{	1596	{
1175	ev_io_set (&once->io, fd, events);	1597	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1598	ev_io_start (EV_A_ &once->io);
1177	}	1599	}
1178		1600
1179	ev_watcher_init (&once->to, once_cb_to);	1601	ev_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1602	if (timeout >= 0.)
1181	{	1603	{
1182	ev_timer_set (&once->to, timeout, 0.);	1604	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1605	ev_timer_start (EV_A_ &once->to);
1184	}	1606	}
1185	}	1607	}
1186	}	1608	}
1187		1609
1188	/*****************************************************************************/	1610	#ifdef __cplusplus
1189
1190	#if 0
1191
1192	struct ev_io wio;
1193
1194	static void
1195	sin_cb (struct ev_io *w, int revents)
1196	{
1197	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1198	}	1611	}
1199
1200	static void
1201	ocb (struct ev_timer *w, int revents)
1202	{
1203	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1204	ev_timer_stop (w);
1205	ev_timer_start (w);
1206	}
1207
1208	static void
1209	scb (struct ev_signal *w, int revents)
1210	{
1211	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1212	ev_io_stop (&wio);
1213	ev_io_start (&wio);
1214	}
1215
1216	static void
1217	gcb (struct ev_signal *w, int revents)
1218	{
1219	fprintf (stderr, "generic %x\n", revents);
1220
1221	}
1222
1223	int main (void)
1224	{
1225	ev_init (0);
1226
1227	ev_io_init (&wio, sin_cb, 0, EV_READ);
1228	ev_io_start (&wio);
1229
1230	struct ev_timer t[10000];
1231
1232	#if 0
1233	int i;
1234	for (i = 0; i < 10000; ++i)
1235	{
1236	struct ev_timer *w = t + i;
1237	ev_watcher_init (w, ocb, i);
1238	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1239	ev_timer_start (w);
1240	if (drand48 () < 0.5)
1241	ev_timer_stop (w);
1242	}
1243	#endif	1612	#endif
1244		1613
1245	struct ev_timer t1;
1246	ev_timer_init (&t1, ocb, 5, 10);
1247	ev_timer_start (&t1);
1248
1249	struct ev_signal sig;
1250	ev_signal_init (&sig, scb, SIGQUIT);
1251	ev_signal_start (&sig);
1252
1253	struct ev_check cw;
1254	ev_check_init (&cw, gcb);
1255	ev_check_start (&cw);
1256
1257	struct ev_idle iw;
1258	ev_idle_init (&iw, gcb);
1259	ev_idle_start (&iw);
1260
1261	ev_loop (0);
1262
1263	return 0;
1264	}
1265
1266	#endif
1267
1268
1269
1270

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs. Revision 1.92 by root, Sun Nov 11 00:08:54 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.92 by root, Sun Nov 11 00:08:54 2007 UTC