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

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.90 by root, Sun Nov 11 00:05:59 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
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	92	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	93	#endif
64		94
65	#ifndef EV_USE_EPOLL	95	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	96	# define EV_USE_EPOLL 0
		97	#endif
		98
		99	#ifndef EV_USE_KQUEUE
		100	# define EV_USE_KQUEUE 0
		101	#endif
		102
		103	#ifndef EV_USE_WIN32
		104	# ifdef WIN32
		105	# define EV_USE_WIN32 0 /* it does not exist, use select */
		106	# undef EV_USE_SELECT
		107	# define EV_USE_SELECT 1
		108	# else
		109	# define EV_USE_WIN32 0
		110	# endif
67	#endif	111	#endif
68		112
69	#ifndef EV_USE_REALTIME	113	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	114	# define EV_USE_REALTIME 1
71	#endif	115	#endif
…		…
87	#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) */
88	#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) */
89	#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 */
90	/#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 */
91		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
92	#include "ev.h"	139	# include "ev.h"
		140	#endif
93		141
94	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	144	# define inline inline
97	#else	145	#else
…		…
107		155
108	typedef struct ev_watcher *W;	156	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
111		159
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
113	ev_tstamp ev_now;
114	int ev_method;
115		161
116	static int have_monotonic; /* runtime */	162	#include "ev_win32.c"
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		163
122	/*****************************************************************************/	164	/*****************************************************************************/
123		165
124	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
125	ev_time (void)	255	ev_time (void)
126	{	256	{
127	#if EV_USE_REALTIME	257	#if EV_USE_REALTIME
128	struct timespec ts;	258	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	259	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	263	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	264	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	265	#endif
136	}	266	}
137		267
138	static ev_tstamp	268	inline ev_tstamp
139	get_clock (void)	269	get_clock (void)
140	{	270	{
141	#if EV_USE_MONOTONIC	271	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	272	if (expect_true (have_monotonic))
143	{	273	{
…		…
148	#endif	278	#endif
149		279
150	return ev_time ();	280	return ev_time ();
151	}	281	}
152		282
		283	#if EV_MULTIPLICITY
		284	ev_tstamp
		285	ev_now (EV_P)
		286	{
		287	return ev_rt_now;
		288	}
		289	#endif
		290
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	291	#define array_roundsize(type,n) ((n) \| 4 & ~3)
154		292
155	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
156	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
157	{ \	295	{ \
158	int newcnt = cur; \	296	int newcnt = cur; \
159	do \	297	do \
160	{ \	298	{ \
161	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
162	} \	300	} \
163	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
164	\	302	\
165	base = realloc (base, sizeof (base) (newcnt)); \	303	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
166	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
167	cur = newcnt; \	305	cur = newcnt; \
168	}	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;
169		323
170	/*****************************************************************************/	324	/*****************************************************************************/
171
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181		325
182	static void	326	static void
183	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
184	{	328	{
185	while (count--)	329	while (count--)
…		…
190		334
191	++base;	335	++base;
192	}	336	}
193	}	337	}
194		338
195	typedef struct	339	void
		340	ev_feed_event (EV_P_ void *w, int revents)
196	{	341	{
197	W w;	342	W w_ = (W)w;
198	int events;
199	} ANPENDING;
200		343
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void
205	event (W w, int events)
206	{
207	if (w->pending)	344	if (w_->pending)
208	{	345	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
210	return;	347	return;
211	}	348	}
212		349
213	w->pending = ++pendingcnt [ABSPRI (w)];	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
214	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));
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
217	}	354	}
218		355
219	static void	356	static void
220	queue_events (W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	358	{
222	int i;	359	int i;
223		360
224	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
226	}	363	}
227		364
228	static void	365	inline void
229	fd_event (int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
230	{	367	{
231	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	369	struct ev_io *w;
233		370
234	for (w = anfd->head; w; w = w->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	372	{
236	int ev = w->events & events;	373	int ev = w->events & revents;
237		374
238	if (ev)	375	if (ev)
239	event ((W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
240	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
241	}	384	}
242		385
243	/*****************************************************************************/	386	/*****************************************************************************/
244		387
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	388	static void
249	fd_reify (void)	389	fd_reify (EV_P)
250	{	390	{
251	int i;	391	int i;
252		392
253	for (i = 0; i < fdchangecnt; ++i)	393	for (i = 0; i < fdchangecnt; ++i)
254	{	394	{
…		…
256	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	397	struct ev_io *w;
258		398
259	int events = 0;	399	int events = 0;
260		400
261	for (w = anfd->head; w; w = w->next)	401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	402	events \|= w->events;
263		403
264	anfd->reify = 0;	404	anfd->reify = 0;
265		405
266	if (anfd->events != events)
267	{
268	method_modify (fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	407	anfd->events = events;
270	}
271	}	408	}
272		409
273	fdchangecnt = 0;	410	fdchangecnt = 0;
274	}	411	}
275		412
276	static void	413	static void
277	fd_change (int fd)	414	fd_change (EV_P_ int fd)
278	{	415	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	416	if (anfds [fd].reify)
280	return;	417	return;
281		418
282	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
283		420
284	++fdchangecnt;	421	++fdchangecnt;
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
286	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
287	}	424	}
288		425
289	static void	426	static void
290	fd_kill (int fd)	427	fd_kill (EV_P_ int fd)
291	{	428	{
292	struct ev_io *w;	429	struct ev_io *w;
293		430
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	431	while ((w = (struct ev_io *)anfds [fd].head))
296	{	432	{
297	ev_io_stop (w);	433	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	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
300	}	446	}
301		447
302	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
303	static void	449	static void
304	fd_ebadf (void)	450	fd_ebadf (EV_P)
305	{	451	{
306	int fd;	452	int fd;
307		453
308	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	455	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
311	fd_kill (fd);	457	fd_kill (EV_A_ fd);
312	}	458	}
313		459
314	/* 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 */
315	static void	461	static void
316	fd_enomem (void)	462	fd_enomem (EV_P)
317	{	463	{
318	int fd = anfdmax;	464	int fd;
319		465
320	while (fd--)	466	for (fd = anfdmax; fd--; )
321	if (anfds [fd].events)	467	if (anfds [fd].events)
322	{	468	{
323	close (fd);
324	fd_kill (fd);	469	fd_kill (EV_A_ fd);
325	return;	470	return;
326	}	471	}
327	}	472	}
328		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
329	/*****************************************************************************/	489	/*****************************************************************************/
330		490
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	491	static void
338	upheap (WT *timers, int k)	492	upheap (WT *heap, int k)
339	{	493	{
340	WT w = timers [k];	494	WT w = heap [k];
341		495
342	while (k && timers [k >> 1]->at > w->at)	496	while (k && heap [k >> 1]->at > w->at)
343	{	497	{
344	timers [k] = timers [k >> 1];	498	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
346	k >>= 1;	500	k >>= 1;
347	}	501	}
348		502
349	timers [k] = w;	503	heap [k] = w;
350	timers [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
351		505
352	}	506	}
353		507
354	static void	508	static void
355	downheap (WT *timers, int N, int k)	509	downheap (WT *heap, int N, int k)
356	{	510	{
357	WT w = timers [k];	511	WT w = heap [k];
358		512
359	while (k < (N >> 1))	513	while (k < (N >> 1))
360	{	514	{
361	int j = k << 1;	515	int j = k << 1;
362		516
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	517	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	518	++j;
365		519
366	if (w->at <= timers [j]->at)	520	if (w->at <= heap [j]->at)
367	break;	521	break;
368		522
369	timers [k] = timers [j];	523	heap [k] = heap [j];
370	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
371	k = j;	525	k = j;
372	}	526	}
373		527
374	timers [k] = w;	528	heap [k] = w;
375	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);
376	}	542	}
377		543
378	/*****************************************************************************/	544	/*****************************************************************************/
379		545
380	typedef struct	546	typedef struct
381	{	547	{
382	struct ev_signal *head;	548	WL head;
383	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
384	} ANSIG;	550	} ANSIG;
385		551
386	static ANSIG *signals;	552	static ANSIG *signals;
387	static int signalmax;	553	static int signalmax;
…		…
403	}	569	}
404		570
405	static void	571	static void
406	sighandler (int signum)	572	sighandler (int signum)
407	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
408	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
409		579
410	if (!gotsig)	580	if (!gotsig)
411	{	581	{
		582	int old_errno = errno;
412	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
413	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
		589	errno = old_errno;
414	}	590	}
415	}	591	}
416		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
417	static void	613	static void
418	sigcb (struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	615	{
420	struct ev_signal *w;
421	int signum;	616	int signum;
422		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
423	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
424	gotsig = 0;	623	gotsig = 0;
425		624
426	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
428	{	627	ev_feed_signal_event (EV_A_ signum + 1);
429	signals [signum].gotsig = 0;
430
431	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);
433	}
434	}	628	}
435		629
436	static void	630	static void
437	siginit (void)	631	siginit (EV_P)
438	{	632	{
		633	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		636
442	/* rather than sort out wether we really need nb, set it */	637	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		640	#endif
445		641
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	642	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	643	ev_io_start (EV_A_ &sigev);
		644	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	645	}
449		646
450	/*****************************************************************************/	647	/*****************************************************************************/
451		648
452	static struct ev_idle **idles;
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];	649	static struct ev_child *childs [PID_HASHSIZE];
		650
		651	#ifndef WIN32
		652
464	static struct ev_signal childev;	653	static struct ev_signal childev;
465		654
466	#ifndef WCONTINUED	655	#ifndef WCONTINUED
467	# define WCONTINUED 0	656	# define WCONTINUED 0
468	#endif	657	#endif
469		658
470	static void	659	static void
471	childcb (struct ev_signal *sw, int revents)	660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	661	{
473	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	{
474	int pid, status;	677	int pid, status;
475		678
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	680	{
478	if (w->pid == pid \|\| !w->pid)	681	/* make sure we are called again until all childs have been reaped */
479	{	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	683
481	event ((W)w, EV_CHILD);	684	child_reap (EV_A_ sw, pid, pid, status);
482	}	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		686	}
483	}	687	}
		688
		689	#endif
484		690
485	/*****************************************************************************/	691	/*****************************************************************************/
486		692
		693	#if EV_USE_KQUEUE
		694	# include "ev_kqueue.c"
		695	#endif
487	#if EV_USE_EPOLL	696	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	697	# include "ev_epoll.c"
489	#endif	698	#endif
490	#if EV_USE_POLL	699	#if EV_USE_POLL
491	# include "ev_poll.c"	700	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	713	ev_version_minor (void)
505	{	714	{
506	return EV_VERSION_MINOR;	715	return EV_VERSION_MINOR;
507	}	716	}
508		717
509	/* 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 */
510	static int	719	static int
511	enable_secure ()	720	enable_secure (void)
512	{	721	{
		722	#ifdef WIN32
		723	return 0;
		724	#else
513	return getuid () != geteuid ()	725	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	726	\|\| getgid () != getegid ();
		727	#endif
515	}	728	}
516		729
517	int ev_init (int methods)	730	int
		731	ev_method (EV_P)
518	{	732	{
		733	return method;
		734	}
		735
		736	static void
		737	loop_init (EV_P_ int methods)
		738	{
519	if (!ev_method)	739	if (!method)
520	{	740	{
521	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
522	{	742	{
523	struct timespec ts;	743	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	745	have_monotonic = 1;
526	}	746	}
527	#endif	747	#endif
528		748
529	ev_now = ev_time ();	749	ev_rt_now = ev_time ();
530	now = get_clock ();	750	mn_now = get_clock ();
531	now_floor = now;	751	now_floor = mn_now;
532	diff = ev_now - now;	752	rtmn_diff = ev_rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		753
537	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	757	else
541	methods = EVMETHOD_ANY;	758	methods = EVMETHOD_ANY;
542		759
543	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
		764	#if EV_USE_KQUEUE
		765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		766	#endif
544	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	769	#endif
547	#if EV_USE_POLL	770	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	772	#endif
550	#if EV_USE_SELECT	773	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	775	#endif
553		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
554	if (ev_method)	897	if (ev_method (EV_A))
555	{	898	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	899	siginit (EV_A);
558		900
		901	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	902	ev_signal_init (&childev, childcb, SIGCHLD);
		903	ev_set_priority (&childev, EV_MAXPRI);
560	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
561	}	907	}
		908	else
		909	default_loop = 0;
562	}	910	}
563		911
564	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;
565	}	945	}
566		946
567	/*****************************************************************************/	947	/*****************************************************************************/
568		948
569	void
570	ev_fork_prepare (void)
571	{
572	/* nop */
573	}
574
575	void
576	ev_fork_parent (void)
577	{
578	/* nop */
579	}
580
581	void
582	ev_fork_child (void)
583	{
584	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();
587	#endif
588
589	ev_io_stop (&sigev);
590	close (sigpipe [0]);
591	close (sigpipe [1]);
592	pipe (sigpipe);
593	siginit ();
594	}
595
596	/*****************************************************************************/
597
598	static void	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
599	call_pending (void)	962	call_pending (EV_P)
600	{	963	{
601	int pri;	964	int pri;
602		965
603	for (pri = NUMPRI; pri--; )	966	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	967	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		970
608	if (p->w)	971	if (p->w)
609	{	972	{
610	p->w->pending = 0;	973	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	974	EV_CB_INVOKE (p->w, p->events);
612	}	975	}
613	}	976	}
614	}	977	}
615		978
616	static void	979	static void
617	timers_reify (void)	980	timers_reify (EV_P)
618	{	981	{
619	while (timercnt && timers [0]->at <= now)	982	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	983	{
621	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)));
622		987
623	/* first reschedule or stop timer */	988	/* first reschedule or stop timer */
624	if (w->repeat)	989	if (w->repeat)
625	{	990	{
626	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
627	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
628	downheap ((WT *)timers, timercnt, 0);	997	downheap ((WT *)timers, timercnt, 0);
629	}	998	}
630	else	999	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	1000	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		1001
633	event ((W)w, EV_TIMEOUT);	1002	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	1003	}
635	}	1004	}
636		1005
637	static void	1006	static void
638	periodics_reify (void)	1007	periodics_reify (EV_P)
639	{	1008	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	1009	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
641	{	1010	{
642	struct ev_periodic *w = periodics [0];	1011	struct ev_periodic *w = periodics [0];
643		1012
		1013	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1014
644	/* first reschedule or stop timer */	1015	/* first reschedule or stop timer */
645	if (w->interval)	1016	if (w->reschedule_cb)
646	{	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	{
647	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;
648	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));
649	downheap ((WT *)periodics, periodiccnt, 0);	1027	downheap ((WT *)periodics, periodiccnt, 0);
650	}	1028	}
651	else	1029	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	1030	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		1031
654	event ((W)w, EV_PERIODIC);	1032	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	1033	}
656	}	1034	}
657		1035
658	static void	1036	static void
659	periodics_reschedule (ev_tstamp diff)	1037	periodics_reschedule (EV_P)
660	{	1038	{
661	int i;	1039	int i;
662		1040
663	/* adjust periodics after time jump */	1041	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	1042	for (i = 0; i < periodiccnt; ++i)
665	{	1043	{
666	struct ev_periodic *w = periodics [i];	1044	struct ev_periodic *w = periodics [i];
667		1045
		1046	if (w->reschedule_cb)
		1047	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
668	if (w->interval)	1048	else if (w->interval)
669	{
670	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;
671
672	if (fabs (diff) >= 1e-4)
673	{
674	ev_periodic_stop (w);
675	ev_periodic_start (w);
676
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}
679	}
680	}	1050	}
681	}
682		1051
683	static int	1052	/* now rebuild the heap */
		1053	for (i = periodiccnt >> 1; i--; )
		1054	downheap ((WT *)periodics, periodiccnt, i);
		1055	}
		1056
		1057	inline int
684	time_update_monotonic (void)	1058	time_update_monotonic (EV_P)
685	{	1059	{
686	now = get_clock ();	1060	mn_now = get_clock ();
687		1061
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1062	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1063	{
690	ev_now = now + diff;	1064	ev_rt_now = rtmn_diff + mn_now;
691	return 0;	1065	return 0;
692	}	1066	}
693	else	1067	else
694	{	1068	{
695	now_floor = now;	1069	now_floor = mn_now;
696	ev_now = ev_time ();	1070	ev_rt_now = ev_time ();
697	return 1;	1071	return 1;
698	}	1072	}
699	}	1073	}
700		1074
701	static void	1075	static void
702	time_update (void)	1076	time_update (EV_P)
703	{	1077	{
704	int i;	1078	int i;
705		1079
706	#if EV_USE_MONOTONIC	1080	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1081	if (expect_true (have_monotonic))
708	{	1082	{
709	if (time_update_monotonic ())	1083	if (time_update_monotonic (EV_A))
710	{	1084	{
711	ev_tstamp odiff = diff;	1085	ev_tstamp odiff = rtmn_diff;
712		1086
713	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 */
714	{	1088	{
715	diff = ev_now - now;	1089	rtmn_diff = ev_rt_now - mn_now;
716		1090
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1091	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1092	return; /* all is well */
719		1093
720	ev_now = ev_time ();	1094	ev_rt_now = ev_time ();
721	now = get_clock ();	1095	mn_now = get_clock ();
722	now_floor = now;	1096	now_floor = mn_now;
723	}	1097	}
724		1098
725	periodics_reschedule (diff - odiff);	1099	periodics_reschedule (EV_A);
726	/* 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) */
727	}	1102	}
728	}	1103	}
729	else	1104	else
730	#endif	1105	#endif
731	{	1106	{
732	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
733		1108
734	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))
735	{	1110	{
736	periodics_reschedule (ev_now - now);	1111	periodics_reschedule (EV_A);
737		1112
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	1114	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1115	((WT)timers [i])->at += ev_rt_now - mn_now;
741	}	1116	}
742		1117
743	now = ev_now;	1118	mn_now = ev_rt_now;
744	}	1119	}
745	}	1120	}
746		1121
747	int ev_loop_done;	1122	void
		1123	ev_ref (EV_P)
		1124	{
		1125	++activecnt;
		1126	}
748		1127
		1128	void
		1129	ev_unref (EV_P)
		1130	{
		1131	--activecnt;
		1132	}
		1133
		1134	static int loop_done;
		1135
		1136	void
749	void ev_loop (int flags)	1137	ev_loop (EV_P_ int flags)
750	{	1138	{
751	double block;	1139	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1140	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		1141
754	do	1142	do
755	{	1143	{
756	/* queue check watchers (and execute them) */	1144	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1145	if (expect_false (preparecnt))
758	{	1146	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1147	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1148	call_pending (EV_A);
761	}	1149	}
762		1150
		1151	/* we might have forked, so reify kernel state if necessary */
		1152	if (expect_false (postfork))
		1153	loop_fork (EV_A);
		1154
763	/* update fd-related kernel structures */	1155	/* update fd-related kernel structures */
764	fd_reify ();	1156	fd_reify (EV_A);
765		1157
766	/* calculate blocking time */	1158	/* calculate blocking time */
767		1159
768	/* 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
769	always have timers, we just calculate it always */	1161	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1162	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1163	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1164	time_update_monotonic (EV_A);
773	else	1165	else
774	#endif	1166	#endif
775	{	1167	{
776	ev_now = ev_time ();	1168	ev_rt_now = ev_time ();
777	now = ev_now;	1169	mn_now = ev_rt_now;
778	}	1170	}
779		1171
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1172	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	1173	block = 0.;
782	else	1174	else
783	{	1175	{
784	block = MAX_BLOCKTIME;	1176	block = MAX_BLOCKTIME;
785		1177
786	if (timercnt)	1178	if (timercnt)
787	{	1179	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1180	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1181	if (block > to) block = to;
790	}	1182	}
791		1183
792	if (periodiccnt)	1184	if (periodiccnt)
793	{	1185	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1186	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
795	if (block > to) block = to;	1187	if (block > to) block = to;
796	}	1188	}
797		1189
798	if (block < 0.) block = 0.;	1190	if (block < 0.) block = 0.;
799	}	1191	}
800		1192
801	method_poll (block);	1193	method_poll (EV_A_ block);
802		1194
803	/* update ev_now, do magic */	1195	/* update ev_rt_now, do magic */
804	time_update ();	1196	time_update (EV_A);
805		1197
806	/* queue pending timers and reschedule them */	1198	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1199	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	1200	periodics_reify (EV_A); /* absolute timers called first */
809		1201
810	/* queue idle watchers unless io or timers are pending */	1202	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1203	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1204	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1205
814	/* queue check watchers, to be executed first */	1206	/* queue check watchers, to be executed first */
815	if (checkcnt)	1207	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1208	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1209
818	call_pending ();	1210	call_pending (EV_A);
819	}	1211	}
820	while (!ev_loop_done);	1212	while (activecnt && !loop_done);
821		1213
822	if (ev_loop_done != 2)	1214	if (loop_done != 2)
823	ev_loop_done = 0;	1215	loop_done = 0;
		1216	}
		1217
		1218	void
		1219	ev_unloop (EV_P_ int how)
		1220	{
		1221	loop_done = how;
824	}	1222	}
825		1223
826	/*****************************************************************************/	1224	/*****************************************************************************/
827		1225
828	static void	1226	inline void
829	wlist_add (WL *head, WL elem)	1227	wlist_add (WL *head, WL elem)
830	{	1228	{
831	elem->next = *head;	1229	elem->next = *head;
832	*head = elem;	1230	*head = elem;
833	}	1231	}
834		1232
835	static void	1233	inline void
836	wlist_del (WL *head, WL elem)	1234	wlist_del (WL *head, WL elem)
837	{	1235	{
838	while (*head)	1236	while (*head)
839	{	1237	{
840	if (*head == elem)	1238	if (*head == elem)
…		…
845		1243
846	head = &(*head)->next;	1244	head = &(*head)->next;
847	}	1245	}
848	}	1246	}
849		1247
850	static void	1248	inline void
851	ev_clear_pending (W w)	1249	ev_clear_pending (EV_P_ W w)
852	{	1250	{
853	if (w->pending)	1251	if (w->pending)
854	{	1252	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1253	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1254	w->pending = 0;
857	}	1255	}
858	}	1256	}
859		1257
860	static void	1258	inline void
861	ev_start (W w, int active)	1259	ev_start (EV_P_ W w, int active)
862	{	1260	{
		1261	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1262	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1263
863	w->active = active;	1264	w->active = active;
		1265	ev_ref (EV_A);
864	}	1266	}
865		1267
866	static void	1268	inline void
867	ev_stop (W w)	1269	ev_stop (EV_P_ W w)
868	{	1270	{
		1271	ev_unref (EV_A);
869	w->active = 0;	1272	w->active = 0;
870	}	1273	}
871		1274
872	/*****************************************************************************/	1275	/*****************************************************************************/
873		1276
874	void	1277	void
875	ev_io_start (struct ev_io *w)	1278	ev_io_start (EV_P_ struct ev_io *w)
876	{	1279	{
877	int fd = w->fd;	1280	int fd = w->fd;
878		1281
879	if (ev_is_active (w))	1282	if (ev_is_active (w))
880	return;	1283	return;
881		1284
882	assert (("ev_io_start called with negative fd", fd >= 0));	1285	assert (("ev_io_start called with negative fd", fd >= 0));
883		1286
884	ev_start ((W)w, 1);	1287	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1288	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1289	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		1290
888	fd_change (fd);	1291	fd_change (EV_A_ fd);
889	}	1292	}
890		1293
891	void	1294	void
892	ev_io_stop (struct ev_io *w)	1295	ev_io_stop (EV_P_ struct ev_io *w)
893	{	1296	{
894	ev_clear_pending ((W)w);	1297	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	1298	if (!ev_is_active (w))
896	return;	1299	return;
897		1300
		1301	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1302
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1303	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	1304	ev_stop (EV_A_ (W)w);
900		1305
901	fd_change (w->fd);	1306	fd_change (EV_A_ w->fd);
902	}	1307	}
903		1308
904	void	1309	void
905	ev_timer_start (struct ev_timer *w)	1310	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	1311	{
907	if (ev_is_active (w))	1312	if (ev_is_active (w))
908	return;	1313	return;
909		1314
910	w->at += now;	1315	((WT)w)->at += mn_now;
911		1316
912	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.));
913		1318
914	ev_start ((W)w, ++timercnt);	1319	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	1320	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
916	timers [timercnt - 1] = w;	1321	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	1322	upheap ((WT *)timers, timercnt - 1);
918	}
919		1323
		1324	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1325	}
		1326
920	void	1327	void
921	ev_timer_stop (struct ev_timer *w)	1328	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	1329	{
923	ev_clear_pending ((W)w);	1330	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	1331	if (!ev_is_active (w))
925	return;	1332	return;
926		1333
		1334	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1335
927	if (w->active < timercnt--)	1336	if (((W)w)->active < timercnt--)
928	{	1337	{
929	timers [w->active - 1] = timers [timercnt];	1338	timers [((W)w)->active - 1] = timers [timercnt];
930	downheap ((WT *)timers, timercnt, w->active - 1);	1339	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
931	}	1340	}
932		1341
933	w->at = w->repeat;	1342	((WT)w)->at = w->repeat;
934		1343
935	ev_stop ((W)w);	1344	ev_stop (EV_A_ (W)w);
936	}	1345	}
937		1346
938	void	1347	void
939	ev_timer_again (struct ev_timer *w)	1348	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	1349	{
941	if (ev_is_active (w))	1350	if (ev_is_active (w))
942	{	1351	{
943	if (w->repeat)	1352	if (w->repeat)
944	{
945	w->at = now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
947	}
948	else	1354	else
949	ev_timer_stop (w);	1355	ev_timer_stop (EV_A_ w);
950	}	1356	}
951	else if (w->repeat)	1357	else if (w->repeat)
952	ev_timer_start (w);	1358	ev_timer_start (EV_A_ w);
953	}	1359	}
954		1360
955	void	1361	void
956	ev_periodic_start (struct ev_periodic *w)	1362	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1363	{
958	if (ev_is_active (w))	1364	if (ev_is_active (w))
959	return;	1365	return;
960		1366
		1367	if (w->reschedule_cb)
		1368	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1369	else if (w->interval)
		1370	{
961	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.));
962
963	/* 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 */
964	if (w->interval)
965	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	}
966		1375
967	ev_start ((W)w, ++periodiccnt);	1376	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1377	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
969	periodics [periodiccnt - 1] = w;	1378	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1379	upheap ((WT *)periodics, periodiccnt - 1);
971	}
972		1380
		1381	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1382	}
		1383
973	void	1384	void
974	ev_periodic_stop (struct ev_periodic *w)	1385	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1386	{
976	ev_clear_pending ((W)w);	1387	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1388	if (!ev_is_active (w))
978	return;	1389	return;
979		1390
		1391	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1392
980	if (w->active < periodiccnt--)	1393	if (((W)w)->active < periodiccnt--)
981	{	1394	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1395	periodics [((W)w)->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1396	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
984	}	1397	}
985		1398
986	ev_stop ((W)w);	1399	ev_stop (EV_A_ (W)w);
987	}	1400	}
988		1401
989	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
990	ev_signal_start (struct ev_signal *w)	1411	ev_idle_start (EV_P_ struct ev_idle *w)
991	{	1412	{
992	if (ev_is_active (w))	1413	if (ev_is_active (w))
993	return;	1414	return;
994		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
995	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));
996		1490
997	ev_start ((W)w, 1);	1491	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1492	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1493	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1494
1001	if (!w->next)	1495	if (!((WL)w)->next)
1002	{	1496	{
		1497	#if WIN32
		1498	signal (w->signum, sighandler);
		1499	#else
1003	struct sigaction sa;	1500	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1501	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1502	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1503	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1504	sigaction (w->signum, &sa, 0);
		1505	#endif
1008	}	1506	}
1009	}	1507	}
1010		1508
1011	void	1509	void
1012	ev_signal_stop (struct ev_signal *w)	1510	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1511	{
1014	ev_clear_pending ((W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1513	if (!ev_is_active (w))
1016	return;	1514	return;
1017		1515
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1516	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1517	ev_stop (EV_A_ (W)w);
1020		1518
1021	if (!signals [w->signum - 1].head)	1519	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1520	signal (w->signum, SIG_DFL);
1023	}	1521	}
1024		1522
1025	void	1523	void
1026	ev_idle_start (struct ev_idle *w)	1524	ev_child_start (EV_P_ struct ev_child *w)
1027	{	1525	{
		1526	#if EV_MULTIPLICITY
		1527	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1528	#endif
1028	if (ev_is_active (w))	1529	if (ev_is_active (w))
1029	return;	1530	return;
1030		1531
1031	ev_start ((W)w, ++idlecnt);	1532	ev_start (EV_A_ (W)w, 1);
1032	array_needsize (idles, idlemax, idlecnt, );	1533	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1033	idles [idlecnt - 1] = w;
1034	}	1534	}
1035		1535
1036	void	1536	void
1037	ev_idle_stop (struct ev_idle *w)	1537	ev_child_stop (EV_P_ struct ev_child *w)
1038	{	1538	{
1039	ev_clear_pending ((W)w);	1539	ev_clear_pending (EV_A_ (W)w);
1040	if (ev_is_active (w))	1540	if (ev_is_active (w))
1041	return;	1541	return;
1042		1542
1043	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);
1045	}
1046
1047	void
1048	ev_prepare_start (struct ev_prepare *w)
1049	{
1050	if (ev_is_active (w))
1051	return;
1052
1053	ev_start ((W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;
1056	}
1057
1058	void
1059	ev_prepare_stop (struct ev_prepare *w)
1060	{
1061	ev_clear_pending ((W)w);
1062	if (ev_is_active (w))
1063	return;
1064
1065	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);
1067	}
1068
1069	void
1070	ev_check_start (struct ev_check *w)
1071	{
1072	if (ev_is_active (w))
1073	return;
1074
1075	ev_start ((W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;
1078	}
1079
1080	void
1081	ev_check_stop (struct ev_check *w)
1082	{
1083	ev_clear_pending ((W)w);
1084	if (ev_is_active (w))
1085	return;
1086
1087	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);
1089	}
1090
1091	void
1092	ev_child_start (struct ev_child *w)
1093	{
1094	if (ev_is_active (w))
1095	return;
1096
1097	ev_start ((W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}
1100
1101	void
1102	ev_child_stop (struct ev_child *w)
1103	{
1104	ev_clear_pending ((W)w);
1105	if (ev_is_active (w))
1106	return;
1107
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1543	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1544	ev_stop (EV_A_ (W)w);
1110	}	1545	}
1111		1546
1112	/*****************************************************************************/	1547	/*****************************************************************************/
1113		1548
1114	struct ev_once	1549	struct ev_once
…		…
1118	void (cb)(int revents, void arg);	1553	void (cb)(int revents, void arg);
1119	void *arg;	1554	void *arg;
1120	};	1555	};
1121		1556
1122	static void	1557	static void
1123	once_cb (struct ev_once *once, int revents)	1558	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1559	{
1125	void (cb)(int revents, void arg) = once->cb;	1560	void (cb)(int revents, void arg) = once->cb;
1126	void *arg = once->arg;	1561	void *arg = once->arg;
1127		1562
1128	ev_io_stop (&once->io);	1563	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1564	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1565	ev_free (once);
1131		1566
1132	cb (revents, arg);	1567	cb (revents, arg);
1133	}	1568	}
1134		1569
1135	static void	1570	static void
1136	once_cb_io (struct ev_io *w, int revents)	1571	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1572	{
1138	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);
1139	}	1574	}
1140		1575
1141	static void	1576	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1577	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1578	{
1144	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);
1145	}	1580	}
1146		1581
1147	void	1582	void
1148	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)
1149	{	1584	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1585	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1151		1586
1152	if (!once)	1587	if (!once)
1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1588	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1154	else	1589	else
1155	{	1590	{
1156	once->cb = cb;	1591	once->cb = cb;
1157	once->arg = arg;	1592	once->arg = arg;
1158		1593
1159	ev_watcher_init (&once->io, once_cb_io);	1594	ev_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1595	if (fd >= 0)
1161	{	1596	{
1162	ev_io_set (&once->io, fd, events);	1597	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1598	ev_io_start (EV_A_ &once->io);
1164	}	1599	}
1165		1600
1166	ev_watcher_init (&once->to, once_cb_to);	1601	ev_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1602	if (timeout >= 0.)
1168	{	1603	{
1169	ev_timer_set (&once->to, timeout, 0.);	1604	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1605	ev_timer_start (EV_A_ &once->to);
1171	}	1606	}
1172	}	1607	}
1173	}	1608	}
1174		1609
1175	/*****************************************************************************/	1610	#ifdef __cplusplus
1176
1177	#if 0
1178
1179	struct ev_io wio;
1180
1181	static void
1182	sin_cb (struct ev_io *w, int revents)
1183	{
1184	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1185	}	1611	}
1186
1187	static void
1188	ocb (struct ev_timer *w, int revents)
1189	{
1190	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1191	ev_timer_stop (w);
1192	ev_timer_start (w);
1193	}
1194
1195	static void
1196	scb (struct ev_signal *w, int revents)
1197	{
1198	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1199	ev_io_stop (&wio);
1200	ev_io_start (&wio);
1201	}
1202
1203	static void
1204	gcb (struct ev_signal *w, int revents)
1205	{
1206	fprintf (stderr, "generic %x\n", revents);
1207
1208	}
1209
1210	int main (void)
1211	{
1212	ev_init (0);
1213
1214	ev_io_init (&wio, sin_cb, 0, EV_READ);
1215	ev_io_start (&wio);
1216
1217	struct ev_timer t[10000];
1218
1219	#if 0
1220	int i;
1221	for (i = 0; i < 10000; ++i)
1222	{
1223	struct ev_timer *w = t + i;
1224	ev_watcher_init (w, ocb, i);
1225	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1226	ev_timer_start (w);
1227	if (drand48 () < 0.5)
1228	ev_timer_stop (w);
1229	}
1230	#endif	1612	#endif
1231		1613
1232	struct ev_timer t1;
1233	ev_timer_init (&t1, ocb, 5, 10);
1234	ev_timer_start (&t1);
1235
1236	struct ev_signal sig;
1237	ev_signal_init (&sig, scb, SIGQUIT);
1238	ev_signal_start (&sig);
1239
1240	struct ev_check cw;
1241	ev_check_init (&cw, gcb);
1242	ev_check_start (&cw);
1243
1244	struct ev_idle iw;
1245	ev_idle_init (&iw, gcb);
1246	ev_idle_start (&iw);
1247
1248	ev_loop (0);
1249
1250	return 0;
1251	}
1252
1253	#endif
1254
1255
1256
1257

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Comparing libev/ev.c (file contents): Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs. Revision 1.90 by root, Sun Nov 11 00:05:59 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.90 by root, Sun Nov 11 00:05:59 2007 UTC