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

Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.86 by root, Sat Nov 10 03:19:21 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	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
		33
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	67	#include <time.h>
50		68
		69	#include <signal.h>
		70
		71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
		74	# include <sys/wait.h>
		75	#endif
51	/**/	76	/**/
52		77
53	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
55	#endif	80	#endif
56		81
57	#ifndef EV_USE_SELECT	82	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	83	# define EV_USE_SELECT 1
59	#endif	84	#endif
60		85
		86	#ifndef EV_USE_POLL
		87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		88	#endif
		89
61	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
62	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
63	#endif	106	#endif
64		107
65	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
67	#endif	110	#endif
…		…
83	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
84	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
85	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
86	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
87		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
88	#include "ev.h"	134	# include "ev.h"
		135	#endif
89		136
90	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
91	# define expect(expr,value) __builtin_expect ((expr),(value))	138	# define expect(expr,value) __builtin_expect ((expr),(value))
92	# define inline inline	139	# define inline inline
93	#else	140	#else
…		…
96	#endif	143	#endif
97		144
98	#define expect_false(expr) expect ((expr) != 0, 0)	145	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	146	#define expect_true(expr) expect ((expr) != 0, 1)
100		147
		148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		150
101	typedef struct ev_watcher *W;	151	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	152	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	153	typedef struct ev_watcher_time *WT;
104		154
105	static ev_tstamp now_floor, now, diff; /* monotonic clock */	155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
106	ev_tstamp ev_now;
107	int ev_method;
108		156
109	static int have_monotonic; /* runtime */	157	#include "ev_win32.c"
110
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114		158
115	/*****************************************************************************/	159	/*****************************************************************************/
116		160
117	ev_tstamp	161	static void (syserr_cb)(const char msg);
		162
		163	void ev_set_syserr_cb (void (cb)(const char msg))
		164	{
		165	syserr_cb = cb;
		166	}
		167
		168	static void
		169	syserr (const char *msg)
		170	{
		171	if (!msg)
		172	msg = "(libev) system error";
		173
		174	if (syserr_cb)
		175	syserr_cb (msg);
		176	else
		177	{
		178	perror (msg);
		179	abort ();
		180	}
		181	}
		182
		183	static void (alloc)(void *ptr, long size);
		184
		185	void ev_set_allocator (void (cb)(void *ptr, long size))
		186	{
		187	alloc = cb;
		188	}
		189
		190	static void *
		191	ev_realloc (void *ptr, long size)
		192	{
		193	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		194
		195	if (!ptr && size)
		196	{
		197	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		198	abort ();
		199	}
		200
		201	return ptr;
		202	}
		203
		204	#define ev_malloc(size) ev_realloc (0, (size))
		205	#define ev_free(ptr) ev_realloc ((ptr), 0)
		206
		207	/*****************************************************************************/
		208
		209	typedef struct
		210	{
		211	WL head;
		212	unsigned char events;
		213	unsigned char reify;
		214	} ANFD;
		215
		216	typedef struct
		217	{
		218	W w;
		219	int events;
		220	} ANPENDING;
		221
		222	#if EV_MULTIPLICITY
		223
		224	struct ev_loop
		225	{
		226	ev_tstamp ev_rt_now;
		227	#define VAR(name,decl) decl;
		228	#include "ev_vars.h"
		229	#undef VAR
		230	};
		231	#include "ev_wrap.h"
		232
		233	struct ev_loop default_loop_struct;
		234	static struct ev_loop *default_loop;
		235
		236	#else
		237
		238	ev_tstamp ev_rt_now;
		239	#define VAR(name,decl) static decl;
		240	#include "ev_vars.h"
		241	#undef VAR
		242
		243	static int default_loop;
		244
		245	#endif
		246
		247	/*****************************************************************************/
		248
		249	inline ev_tstamp
118	ev_time (void)	250	ev_time (void)
119	{	251	{
120	#if EV_USE_REALTIME	252	#if EV_USE_REALTIME
121	struct timespec ts;	253	struct timespec ts;
122	clock_gettime (CLOCK_REALTIME, &ts);	254	clock_gettime (CLOCK_REALTIME, &ts);
…		…
126	gettimeofday (&tv, 0);	258	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	259	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	260	#endif
129	}	261	}
130		262
131	static ev_tstamp	263	inline ev_tstamp
132	get_clock (void)	264	get_clock (void)
133	{	265	{
134	#if EV_USE_MONOTONIC	266	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	267	if (expect_true (have_monotonic))
136	{	268	{
…		…
141	#endif	273	#endif
142		274
143	return ev_time ();	275	return ev_time ();
144	}	276	}
145		277
		278	#if EV_MULTIPLICITY
		279	ev_tstamp
		280	ev_now (EV_P)
		281	{
		282	return ev_rt_now;
		283	}
		284	#endif
		285
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	286	#define array_roundsize(type,n) ((n) \| 4 & ~3)
147		287
148	#define array_needsize(base,cur,cnt,init) \	288	#define array_needsize(type,base,cur,cnt,init) \
149	if (expect_false ((cnt) > cur)) \	289	if (expect_false ((cnt) > cur)) \
150	{ \	290	{ \
151	int newcnt = cur; \	291	int newcnt = cur; \
152	do \	292	do \
153	{ \	293	{ \
154	newcnt = array_roundsize (base, newcnt << 1); \	294	newcnt = array_roundsize (type, newcnt << 1); \
155	} \	295	} \
156	while ((cnt) > newcnt); \	296	while ((cnt) > newcnt); \
157	\	297	\
158	base = realloc (base, sizeof (base) (newcnt)); \	298	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
159	init (base + cur, newcnt - cur); \	299	init (base + cur, newcnt - cur); \
160	cur = newcnt; \	300	cur = newcnt; \
161	}	301	}
		302
		303	#define array_slim(type,stem) \
		304	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		305	{ \
		306	stem ## max = array_roundsize (stem ## cnt >> 1); \
		307	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		308	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		309	}
		310
		311	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		312	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		313	#define array_free_microshit(stem) \
		314	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		315
		316	#define array_free(stem, idx) \
		317	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
162		318
163	/*****************************************************************************/	319	/*****************************************************************************/
164
165	typedef struct
166	{
167	struct ev_io *head;
168	unsigned char events;
169	unsigned char reify;
170	} ANFD;
171
172	static ANFD *anfds;
173	static int anfdmax;
174		320
175	static void	321	static void
176	anfds_init (ANFD *base, int count)	322	anfds_init (ANFD *base, int count)
177	{	323	{
178	while (count--)	324	while (count--)
…		…
183		329
184	++base;	330	++base;
185	}	331	}
186	}	332	}
187		333
188	typedef struct	334	void
		335	ev_feed_event (EV_P_ void *w, int revents)
189	{	336	{
190	W w;	337	W w_ = (W)w;
191	int events;
192	} ANPENDING;
193		338
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void
198	event (W w, int events)
199	{
200	if (w->pending)	339	if (w_->pending)
201	{	340	{
202	pendings [w->pending - 1].events \|= events;	341	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
203	return;	342	return;
204	}	343	}
205		344
206	w->pending = ++pendingcnt;	345	w_->pending = ++pendingcnt [ABSPRI (w_)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	346	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
208	pendings [pendingcnt - 1].w = w;	347	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
209	pendings [pendingcnt - 1].events = events;	348	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
210	}	349	}
211		350
212	static void	351	static void
213	queue_events (W *events, int eventcnt, int type)	352	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	353	{
215	int i;	354	int i;
216		355
217	for (i = 0; i < eventcnt; ++i)	356	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	357	ev_feed_event (EV_A_ events [i], type);
219	}	358	}
220		359
221	static void	360	inline void
222	fd_event (int fd, int events)	361	fd_event (EV_P_ int fd, int revents)
223	{	362	{
224	ANFD *anfd = anfds + fd;	363	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	364	struct ev_io *w;
226		365
227	for (w = anfd->head; w; w = w->next)	366	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	367	{
229	int ev = w->events & events;	368	int ev = w->events & revents;
230		369
231	if (ev)	370	if (ev)
232	event ((W)w, ev);	371	ev_feed_event (EV_A_ (W)w, ev);
233	}	372	}
		373	}
		374
		375	void
		376	ev_feed_fd_event (EV_P_ int fd, int revents)
		377	{
		378	fd_event (EV_A_ fd, revents);
234	}	379	}
235		380
236	/*****************************************************************************/	381	/*****************************************************************************/
237		382
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	383	static void
242	fd_reify (void)	384	fd_reify (EV_P)
243	{	385	{
244	int i;	386	int i;
245		387
246	for (i = 0; i < fdchangecnt; ++i)	388	for (i = 0; i < fdchangecnt; ++i)
247	{	389	{
…		…
249	ANFD *anfd = anfds + fd;	391	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	392	struct ev_io *w;
251		393
252	int events = 0;	394	int events = 0;
253		395
254	for (w = anfd->head; w; w = w->next)	396	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	397	events \|= w->events;
256		398
257	anfd->reify = 0;	399	anfd->reify = 0;
258		400
259	if (anfd->events != events)
260	{
261	method_modify (fd, anfd->events, events);	401	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	402	anfd->events = events;
263	}
264	}	403	}
265		404
266	fdchangecnt = 0;	405	fdchangecnt = 0;
267	}	406	}
268		407
269	static void	408	static void
270	fd_change (int fd)	409	fd_change (EV_P_ int fd)
271	{	410	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	411	if (anfds [fd].reify)
273	return;	412	return;
274		413
275	anfds [fd].reify = 1;	414	anfds [fd].reify = 1;
276		415
277	++fdchangecnt;	416	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	417	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
279	fdchanges [fdchangecnt - 1] = fd;	418	fdchanges [fdchangecnt - 1] = fd;
280	}	419	}
281		420
		421	static void
		422	fd_kill (EV_P_ int fd)
		423	{
		424	struct ev_io *w;
		425
		426	while ((w = (struct ev_io *)anfds [fd].head))
		427	{
		428	ev_io_stop (EV_A_ w);
		429	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		430	}
		431	}
		432
		433	static int
		434	fd_valid (int fd)
		435	{
		436	#ifdef WIN32
		437	return !!win32_get_osfhandle (fd);
		438	#else
		439	return fcntl (fd, F_GETFD) != -1;
		440	#endif
		441	}
		442
282	/* called on EBADF to verify fds */	443	/* called on EBADF to verify fds */
283	static void	444	static void
284	fd_recheck (void)	445	fd_ebadf (EV_P)
285	{	446	{
286	int fd;	447	int fd;
287		448
288	for (fd = 0; fd < anfdmax; ++fd)	449	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	450	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	451	if (!fd_valid (fd) == -1 && errno == EBADF)
291	while (anfds [fd].head)	452	fd_kill (EV_A_ fd);
		453	}
		454
		455	/* called on ENOMEM in select/poll to kill some fds and retry */
		456	static void
		457	fd_enomem (EV_P)
		458	{
		459	int fd;
		460
		461	for (fd = anfdmax; fd--; )
		462	if (anfds [fd].events)
292	{	463	{
293	ev_io_stop (anfds [fd].head);	464	fd_kill (EV_A_ fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	465	return;
295	}	466	}
		467	}
		468
		469	/* usually called after fork if method needs to re-arm all fds from scratch */
		470	static void
		471	fd_rearm_all (EV_P)
		472	{
		473	int fd;
		474
		475	/* this should be highly optimised to not do anything but set a flag */
		476	for (fd = 0; fd < anfdmax; ++fd)
		477	if (anfds [fd].events)
		478	{
		479	anfds [fd].events = 0;
		480	fd_change (EV_A_ fd);
		481	}
296	}	482	}
297		483
298	/*****************************************************************************/	484	/*****************************************************************************/
299		485
300	static struct ev_timer **timers;
301	static int timermax, timercnt;
302
303	static struct ev_periodic **periodics;
304	static int periodicmax, periodiccnt;
305
306	static void	486	static void
307	upheap (WT *timers, int k)	487	upheap (WT *heap, int k)
308	{	488	{
309	WT w = timers [k];	489	WT w = heap [k];
310		490
311	while (k && timers [k >> 1]->at > w->at)	491	while (k && heap [k >> 1]->at > w->at)
312	{	492	{
313	timers [k] = timers [k >> 1];	493	heap [k] = heap [k >> 1];
314	timers [k]->active = k + 1;	494	((W)heap [k])->active = k + 1;
315	k >>= 1;	495	k >>= 1;
316	}	496	}
317		497
318	timers [k] = w;	498	heap [k] = w;
319	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
320		500
321	}	501	}
322		502
323	static void	503	static void
324	downheap (WT *timers, int N, int k)	504	downheap (WT *heap, int N, int k)
325	{	505	{
326	WT w = timers [k];	506	WT w = heap [k];
327		507
328	while (k < (N >> 1))	508	while (k < (N >> 1))
329	{	509	{
330	int j = k << 1;	510	int j = k << 1;
331		511
332	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	512	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
333	++j;	513	++j;
334		514
335	if (w->at <= timers [j]->at)	515	if (w->at <= heap [j]->at)
336	break;	516	break;
337		517
338	timers [k] = timers [j];	518	heap [k] = heap [j];
339	timers [k]->active = k + 1;	519	((W)heap [k])->active = k + 1;
340	k = j;	520	k = j;
341	}	521	}
342		522
343	timers [k] = w;	523	heap [k] = w;
344	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
		525	}
		526
		527	inline void
		528	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		529	{
		530	ev_tstamp old_at = heap [k]->at;
		531	heap [k]->at = at;
		532
		533	if (old_at < at)
		534	downheap (heap, N, k);
		535	else
		536	upheap (heap, k);
345	}	537	}
346		538
347	/*****************************************************************************/	539	/*****************************************************************************/
348		540
349	typedef struct	541	typedef struct
350	{	542	{
351	struct ev_signal *head;	543	WL head;
352	sig_atomic_t volatile gotsig;	544	sig_atomic_t volatile gotsig;
353	} ANSIG;	545	} ANSIG;
354		546
355	static ANSIG *signals;	547	static ANSIG *signals;
356	static int signalmax;	548	static int signalmax;
…		…
372	}	564	}
373		565
374	static void	566	static void
375	sighandler (int signum)	567	sighandler (int signum)
376	{	568	{
		569	#if WIN32
		570	signal (signum, sighandler);
		571	#endif
		572
377	signals [signum - 1].gotsig = 1;	573	signals [signum - 1].gotsig = 1;
378		574
379	if (!gotsig)	575	if (!gotsig)
380	{	576	{
		577	int old_errno = errno;
381	gotsig = 1;	578	gotsig = 1;
		579	#ifdef WIN32
		580	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		581	#else
382	write (sigpipe [1], &signum, 1);	582	write (sigpipe [1], &signum, 1);
		583	#endif
		584	errno = old_errno;
383	}	585	}
384	}	586	}
385		587
		588	void
		589	ev_feed_signal_event (EV_P_ int signum)
		590	{
		591	WL w;
		592
		593	#if EV_MULTIPLICITY
		594	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		595	#endif
		596
		597	--signum;
		598
		599	if (signum < 0 \|\| signum >= signalmax)
		600	return;
		601
		602	signals [signum].gotsig = 0;
		603
		604	for (w = signals [signum].head; w; w = w->next)
		605	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		606	}
		607
386	static void	608	static void
387	sigcb (struct ev_io *iow, int revents)	609	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	610	{
389	struct ev_signal *w;
390	int signum;	611	int signum;
391		612
		613	#ifdef WIN32
		614	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		615	#else
392	read (sigpipe [0], &revents, 1);	616	read (sigpipe [0], &revents, 1);
		617	#endif
393	gotsig = 0;	618	gotsig = 0;
394		619
395	for (signum = signalmax; signum--; )	620	for (signum = signalmax; signum--; )
396	if (signals [signum].gotsig)	621	if (signals [signum].gotsig)
397	{	622	ev_feed_signal_event (EV_A_ signum + 1);
398	signals [signum].gotsig = 0;
399
400	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);
402	}
403	}	623	}
404		624
405	static void	625	static void
406	siginit (void)	626	siginit (EV_P)
407	{	627	{
		628	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	629	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	630	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		631
411	/* rather than sort out wether we really need nb, set it */	632	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	633	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	634	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		635	#endif
414		636
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	637	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	638	ev_io_start (EV_A_ &sigev);
		639	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	640	}
418		641
419	/*****************************************************************************/	642	/*****************************************************************************/
420		643
421	static struct ev_idle **idles;
422	static int idlemax, idlecnt;
423
424	static struct ev_prepare **prepares;
425	static int preparemax, preparecnt;
426
427	static struct ev_check **checks;
428	static int checkmax, checkcnt;
429
430	/*****************************************************************************/
431
432	static struct ev_child *childs [PID_HASHSIZE];	644	static struct ev_child *childs [PID_HASHSIZE];
		645
		646	#ifndef WIN32
		647
433	static struct ev_signal childev;	648	static struct ev_signal childev;
434		649
435	#ifndef WCONTINUED	650	#ifndef WCONTINUED
436	# define WCONTINUED 0	651	# define WCONTINUED 0
437	#endif	652	#endif
438		653
439	static void	654	static void
440	childcb (struct ev_signal *sw, int revents)	655	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	656	{
442	struct ev_child *w;	657	struct ev_child *w;
		658
		659	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		660	if (w->pid == pid \|\| !w->pid)
		661	{
		662	ev_priority (w) = ev_priority (sw); /* need to do it now */
		663	w->rpid = pid;
		664	w->rstatus = status;
		665	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		666	}
		667	}
		668
		669	static void
		670	childcb (EV_P_ struct ev_signal *sw, int revents)
		671	{
443	int pid, status;	672	int pid, status;
444		673
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	674	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	675	{
447	if (w->pid == pid \|\| !w->pid)	676	/* make sure we are called again until all childs have been reaped */
448	{	677	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	678
450	event ((W)w, EV_CHILD);	679	child_reap (EV_A_ sw, pid, pid, status);
451	}	680	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		681	}
452	}	682	}
		683
		684	#endif
453		685
454	/*****************************************************************************/	686	/*****************************************************************************/
455		687
		688	#if EV_USE_KQUEUE
		689	# include "ev_kqueue.c"
		690	#endif
456	#if EV_USE_EPOLL	691	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	692	# include "ev_epoll.c"
458	#endif	693	#endif
		694	#if EV_USE_POLL
		695	# include "ev_poll.c"
		696	#endif
459	#if EV_USE_SELECT	697	#if EV_USE_SELECT
460	# include "ev_select.c"	698	# include "ev_select.c"
461	#endif	699	#endif
462		700
463	int	701	int
…		…
470	ev_version_minor (void)	708	ev_version_minor (void)
471	{	709	{
472	return EV_VERSION_MINOR;	710	return EV_VERSION_MINOR;
473	}	711	}
474		712
475	int ev_init (int flags)	713	/* return true if we are running with elevated privileges and should ignore env variables */
		714	static int
		715	enable_secure (void)
476	{	716	{
		717	#ifdef WIN32
		718	return 0;
		719	#else
		720	return getuid () != geteuid ()
		721	\|\| getgid () != getegid ();
		722	#endif
		723	}
		724
		725	int
		726	ev_method (EV_P)
		727	{
		728	return method;
		729	}
		730
		731	static void
		732	loop_init (EV_P_ int methods)
		733	{
477	if (!ev_method)	734	if (!method)
478	{	735	{
479	#if EV_USE_MONOTONIC	736	#if EV_USE_MONOTONIC
480	{	737	{
481	struct timespec ts;	738	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	739	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	740	have_monotonic = 1;
484	}	741	}
485	#endif	742	#endif
486		743
487	ev_now = ev_time ();	744	ev_rt_now = ev_time ();
488	now = get_clock ();	745	mn_now = get_clock ();
489	now_floor = now;	746	now_floor = mn_now;
490	diff = ev_now - now;	747	rtmn_diff = ev_rt_now - mn_now;
491		748
492	if (pipe (sigpipe))	749	if (methods == EVMETHOD_AUTO)
493	return 0;	750	if (!enable_secure () && getenv ("LIBEV_METHODS"))
494		751	methods = atoi (getenv ("LIBEV_METHODS"));
		752	else
495	ev_method = EVMETHOD_NONE;	753	methods = EVMETHOD_ANY;
		754
		755	method = 0;
		756	#if EV_USE_WIN32
		757	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		758	#endif
		759	#if EV_USE_KQUEUE
		760	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		761	#endif
496	#if EV_USE_EPOLL	762	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	763	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		764	#endif
		765	#if EV_USE_POLL
		766	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	767	#endif
499	#if EV_USE_SELECT	768	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	769	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	770	#endif
502		771
		772	ev_init (&sigev, sigcb);
		773	ev_set_priority (&sigev, EV_MAXPRI);
		774	}
		775	}
		776
		777	void
		778	loop_destroy (EV_P)
		779	{
		780	int i;
		781
		782	#if EV_USE_WIN32
		783	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		784	#endif
		785	#if EV_USE_KQUEUE
		786	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		787	#endif
		788	#if EV_USE_EPOLL
		789	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		790	#endif
		791	#if EV_USE_POLL
		792	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		793	#endif
		794	#if EV_USE_SELECT
		795	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		796	#endif
		797
		798	for (i = NUMPRI; i--; )
		799	array_free (pending, [i]);
		800
		801	/* have to use the microsoft-never-gets-it-right macro */
		802	array_free_microshit (fdchange);
		803	array_free_microshit (timer);
		804	array_free_microshit (periodic);
		805	array_free_microshit (idle);
		806	array_free_microshit (prepare);
		807	array_free_microshit (check);
		808
		809	method = 0;
		810	}
		811
		812	static void
		813	loop_fork (EV_P)
		814	{
		815	#if EV_USE_EPOLL
		816	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		817	#endif
		818	#if EV_USE_KQUEUE
		819	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		820	#endif
		821
		822	if (ev_is_active (&sigev))
		823	{
		824	/* default loop */
		825
		826	ev_ref (EV_A);
		827	ev_io_stop (EV_A_ &sigev);
		828	close (sigpipe [0]);
		829	close (sigpipe [1]);
		830
		831	while (pipe (sigpipe))
		832	syserr ("(libev) error creating pipe");
		833
		834	siginit (EV_A);
		835	}
		836
		837	postfork = 0;
		838	}
		839
		840	#if EV_MULTIPLICITY
		841	struct ev_loop *
		842	ev_loop_new (int methods)
		843	{
		844	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		845
		846	memset (loop, 0, sizeof (struct ev_loop));
		847
		848	loop_init (EV_A_ methods);
		849
		850	if (ev_method (EV_A))
		851	return loop;
		852
		853	return 0;
		854	}
		855
		856	void
		857	ev_loop_destroy (EV_P)
		858	{
		859	loop_destroy (EV_A);
		860	ev_free (loop);
		861	}
		862
		863	void
		864	ev_loop_fork (EV_P)
		865	{
		866	postfork = 1;
		867	}
		868
		869	#endif
		870
		871	#if EV_MULTIPLICITY
		872	struct ev_loop *
		873	#else
		874	int
		875	#endif
		876	ev_default_loop (int methods)
		877	{
		878	if (sigpipe [0] == sigpipe [1])
		879	if (pipe (sigpipe))
		880	return 0;
		881
		882	if (!default_loop)
		883	{
		884	#if EV_MULTIPLICITY
		885	struct ev_loop *loop = default_loop = &default_loop_struct;
		886	#else
		887	default_loop = 1;
		888	#endif
		889
		890	loop_init (EV_A_ methods);
		891
503	if (ev_method)	892	if (ev_method (EV_A))
504	{	893	{
505	ev_watcher_init (&sigev, sigcb);
506	siginit ();	894	siginit (EV_A);
507		895
		896	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	897	ev_signal_init (&childev, childcb, SIGCHLD);
		898	ev_set_priority (&childev, EV_MAXPRI);
509	ev_signal_start (&childev);	899	ev_signal_start (EV_A_ &childev);
		900	ev_unref (EV_A); /* child watcher should not keep loop alive */
		901	#endif
510	}	902	}
		903	else
		904	default_loop = 0;
511	}	905	}
512		906
513	return ev_method;	907	return default_loop;
		908	}
		909
		910	void
		911	ev_default_destroy (void)
		912	{
		913	#if EV_MULTIPLICITY
		914	struct ev_loop *loop = default_loop;
		915	#endif
		916
		917	#ifndef WIN32
		918	ev_ref (EV_A); /* child watcher */
		919	ev_signal_stop (EV_A_ &childev);
		920	#endif
		921
		922	ev_ref (EV_A); /* signal watcher */
		923	ev_io_stop (EV_A_ &sigev);
		924
		925	close (sigpipe [0]); sigpipe [0] = 0;
		926	close (sigpipe [1]); sigpipe [1] = 0;
		927
		928	loop_destroy (EV_A);
		929	}
		930
		931	void
		932	ev_default_fork (void)
		933	{
		934	#if EV_MULTIPLICITY
		935	struct ev_loop *loop = default_loop;
		936	#endif
		937
		938	if (method)
		939	postfork = 1;
514	}	940	}
515		941
516	/*****************************************************************************/	942	/*****************************************************************************/
517		943
518	void
519	ev_fork_prepare (void)
520	{
521	/* nop */
522	}
523
524	void
525	ev_fork_parent (void)
526	{
527	/* nop */
528	}
529
530	void
531	ev_fork_child (void)
532	{
533	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();
536	#endif
537
538	ev_io_stop (&sigev);
539	close (sigpipe [0]);
540	close (sigpipe [1]);
541	pipe (sigpipe);
542	siginit ();
543	}
544
545	/*****************************************************************************/
546
547	static void	944	static int
		945	any_pending (EV_P)
		946	{
		947	int pri;
		948
		949	for (pri = NUMPRI; pri--; )
		950	if (pendingcnt [pri])
		951	return 1;
		952
		953	return 0;
		954	}
		955
		956	static void
548	call_pending (void)	957	call_pending (EV_P)
549	{	958	{
		959	int pri;
		960
		961	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	962	while (pendingcnt [pri])
551	{	963	{
552	ANPENDING *p = pendings + --pendingcnt;	964	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		965
554	if (p->w)	966	if (p->w)
555	{	967	{
556	p->w->pending = 0;	968	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	969	EV_CB_INVOKE (p->w, p->events);
558	}	970	}
559	}	971	}
560	}	972	}
561		973
562	static void	974	static void
563	timers_reify (void)	975	timers_reify (EV_P)
564	{	976	{
565	while (timercnt && timers [0]->at <= now)	977	while (timercnt && ((WT)timers [0])->at <= mn_now)
566	{	978	{
567	struct ev_timer *w = timers [0];	979	struct ev_timer *w = timers [0];
		980
		981	assert (("inactive timer on timer heap detected", ev_is_active (w)));
568		982
569	/* first reschedule or stop timer */	983	/* first reschedule or stop timer */
570	if (w->repeat)	984	if (w->repeat)
571	{	985	{
572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	986	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
573	w->at = now + w->repeat;	987	((WT)w)->at = mn_now + w->repeat;
574	downheap ((WT *)timers, timercnt, 0);	988	downheap ((WT *)timers, timercnt, 0);
575	}	989	}
576	else	990	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	991	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		992
579	event ((W)w, EV_TIMEOUT);	993	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
580	}	994	}
581	}	995	}
582		996
583	static void	997	static void
584	periodics_reify (void)	998	periodics_reify (EV_P)
585	{	999	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	1000	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
587	{	1001	{
588	struct ev_periodic *w = periodics [0];	1002	struct ev_periodic *w = periodics [0];
589		1003
		1004	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1005
590	/* first reschedule or stop timer */	1006	/* first reschedule or stop timer */
591	if (w->interval)	1007	if (w->reschedule_cb)
592	{	1008	{
		1009	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1010
		1011	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1012	downheap ((WT *)periodics, periodiccnt, 0);
		1013	}
		1014	else if (w->interval)
		1015	{
593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1016	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
594	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1017	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
595	downheap ((WT *)periodics, periodiccnt, 0);	1018	downheap ((WT *)periodics, periodiccnt, 0);
596	}	1019	}
597	else	1020	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	1021	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		1022
600	event ((W)w, EV_PERIODIC);	1023	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
601	}	1024	}
602	}	1025	}
603		1026
604	static void	1027	static void
605	periodics_reschedule (ev_tstamp diff)	1028	periodics_reschedule (EV_P)
606	{	1029	{
607	int i;	1030	int i;
608		1031
609	/* adjust periodics after time jump */	1032	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	1033	for (i = 0; i < periodiccnt; ++i)
611	{	1034	{
612	struct ev_periodic *w = periodics [i];	1035	struct ev_periodic *w = periodics [i];
613		1036
		1037	if (w->reschedule_cb)
		1038	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
614	if (w->interval)	1039	else if (w->interval)
615	{
616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1040	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
617
618	if (fabs (diff) >= 1e-4)
619	{
620	ev_periodic_stop (w);
621	ev_periodic_start (w);
622
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}
625	}
626	}	1041	}
627	}
628		1042
629	static int	1043	/* now rebuild the heap */
		1044	for (i = periodiccnt >> 1; i--; )
		1045	downheap ((WT *)periodics, periodiccnt, i);
		1046	}
		1047
		1048	inline int
630	time_update_monotonic (void)	1049	time_update_monotonic (EV_P)
631	{	1050	{
632	now = get_clock ();	1051	mn_now = get_clock ();
633		1052
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1053	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	1054	{
636	ev_now = now + diff;	1055	ev_rt_now = rtmn_diff + mn_now;
637	return 0;	1056	return 0;
638	}	1057	}
639	else	1058	else
640	{	1059	{
641	now_floor = now;	1060	now_floor = mn_now;
642	ev_now = ev_time ();	1061	ev_rt_now = ev_time ();
643	return 1;	1062	return 1;
644	}	1063	}
645	}	1064	}
646		1065
647	static void	1066	static void
648	time_update (void)	1067	time_update (EV_P)
649	{	1068	{
650	int i;	1069	int i;
651		1070
652	#if EV_USE_MONOTONIC	1071	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	1072	if (expect_true (have_monotonic))
654	{	1073	{
655	if (time_update_monotonic ())	1074	if (time_update_monotonic (EV_A))
656	{	1075	{
657	ev_tstamp odiff = diff;	1076	ev_tstamp odiff = rtmn_diff;
658		1077
659	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1078	for (i = 4; --i; ) /* loop a few times, before making important decisions */
660	{	1079	{
661	diff = ev_now - now;	1080	rtmn_diff = ev_rt_now - mn_now;
662		1081
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1082	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
664	return; /* all is well */	1083	return; /* all is well */
665		1084
666	ev_now = ev_time ();	1085	ev_rt_now = ev_time ();
667	now = get_clock ();	1086	mn_now = get_clock ();
668	now_floor = now;	1087	now_floor = mn_now;
669	}	1088	}
670		1089
671	periodics_reschedule (diff - odiff);	1090	periodics_reschedule (EV_A);
672	/* no timer adjustment, as the monotonic clock doesn't jump */	1091	/* no timer adjustment, as the monotonic clock doesn't jump */
		1092	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
673	}	1093	}
674	}	1094	}
675	else	1095	else
676	#endif	1096	#endif
677	{	1097	{
678	ev_now = ev_time ();	1098	ev_rt_now = ev_time ();
679		1099
680	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1100	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
681	{	1101	{
682	periodics_reschedule (ev_now - now);	1102	periodics_reschedule (EV_A);
683		1103
684	/* adjust timers. this is easy, as the offset is the same for all */	1104	/* adjust timers. this is easy, as the offset is the same for all */
685	for (i = 0; i < timercnt; ++i)	1105	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	1106	((WT)timers [i])->at += ev_rt_now - mn_now;
687	}	1107	}
688		1108
689	now = ev_now;	1109	mn_now = ev_rt_now;
690	}	1110	}
691	}	1111	}
692		1112
693	int ev_loop_done;	1113	void
		1114	ev_ref (EV_P)
		1115	{
		1116	++activecnt;
		1117	}
694		1118
		1119	void
		1120	ev_unref (EV_P)
		1121	{
		1122	--activecnt;
		1123	}
		1124
		1125	static int loop_done;
		1126
		1127	void
695	void ev_loop (int flags)	1128	ev_loop (EV_P_ int flags)
696	{	1129	{
697	double block;	1130	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1131	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		1132
700	do	1133	do
701	{	1134	{
702	/* queue check watchers (and execute them) */	1135	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	1136	if (expect_false (preparecnt))
704	{	1137	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1138	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	1139	call_pending (EV_A);
707	}	1140	}
708		1141
		1142	/* we might have forked, so reify kernel state if necessary */
		1143	if (expect_false (postfork))
		1144	loop_fork (EV_A);
		1145
709	/* update fd-related kernel structures */	1146	/* update fd-related kernel structures */
710	fd_reify ();	1147	fd_reify (EV_A);
711		1148
712	/* calculate blocking time */	1149	/* calculate blocking time */
713		1150
714	/* we only need this for !monotonic clockor timers, but as we basically	1151	/* we only need this for !monotonic clock or timers, but as we basically
715	always have timers, we just calculate it always */	1152	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	1153	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1154	if (expect_true (have_monotonic))
718	time_update_monotonic ();	1155	time_update_monotonic (EV_A);
719	else	1156	else
720	#endif	1157	#endif
721	{	1158	{
722	ev_now = ev_time ();	1159	ev_rt_now = ev_time ();
723	now = ev_now;	1160	mn_now = ev_rt_now;
724	}	1161	}
725		1162
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1163	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	1164	block = 0.;
728	else	1165	else
729	{	1166	{
730	block = MAX_BLOCKTIME;	1167	block = MAX_BLOCKTIME;
731		1168
732	if (timercnt)	1169	if (timercnt)
733	{	1170	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	1171	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
735	if (block > to) block = to;	1172	if (block > to) block = to;
736	}	1173	}
737		1174
738	if (periodiccnt)	1175	if (periodiccnt)
739	{	1176	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1177	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
741	if (block > to) block = to;	1178	if (block > to) block = to;
742	}	1179	}
743		1180
744	if (block < 0.) block = 0.;	1181	if (block < 0.) block = 0.;
745	}	1182	}
746		1183
747	method_poll (block);	1184	method_poll (EV_A_ block);
748		1185
749	/* update ev_now, do magic */	1186	/* update ev_rt_now, do magic */
750	time_update ();	1187	time_update (EV_A);
751		1188
752	/* queue pending timers and reschedule them */	1189	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	1190	timers_reify (EV_A); /* relative timers called last */
754	periodics_reify (); /* absolute timers called first */	1191	periodics_reify (EV_A); /* absolute timers called first */
755		1192
756	/* queue idle watchers unless io or timers are pending */	1193	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	1194	if (idlecnt && !any_pending (EV_A))
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	1195	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		1196
760	/* queue check watchers, to be executed first */	1197	/* queue check watchers, to be executed first */
761	if (checkcnt)	1198	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	1199	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		1200
764	call_pending ();	1201	call_pending (EV_A);
765	}	1202	}
766	while (!ev_loop_done);	1203	while (activecnt && !loop_done);
767		1204
768	if (ev_loop_done != 2)	1205	if (loop_done != 2)
769	ev_loop_done = 0;	1206	loop_done = 0;
		1207	}
		1208
		1209	void
		1210	ev_unloop (EV_P_ int how)
		1211	{
		1212	loop_done = how;
770	}	1213	}
771		1214
772	/*****************************************************************************/	1215	/*****************************************************************************/
773		1216
774	static void	1217	inline void
775	wlist_add (WL *head, WL elem)	1218	wlist_add (WL *head, WL elem)
776	{	1219	{
777	elem->next = *head;	1220	elem->next = *head;
778	*head = elem;	1221	*head = elem;
779	}	1222	}
780		1223
781	static void	1224	inline void
782	wlist_del (WL *head, WL elem)	1225	wlist_del (WL *head, WL elem)
783	{	1226	{
784	while (*head)	1227	while (*head)
785	{	1228	{
786	if (*head == elem)	1229	if (*head == elem)
…		…
791		1234
792	head = &(*head)->next;	1235	head = &(*head)->next;
793	}	1236	}
794	}	1237	}
795		1238
796	static void	1239	inline void
797	ev_clear_pending (W w)	1240	ev_clear_pending (EV_P_ W w)
798	{	1241	{
799	if (w->pending)	1242	if (w->pending)
800	{	1243	{
801	pendings [w->pending - 1].w = 0;	1244	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	1245	w->pending = 0;
803	}	1246	}
804	}	1247	}
805		1248
806	static void	1249	inline void
807	ev_start (W w, int active)	1250	ev_start (EV_P_ W w, int active)
808	{	1251	{
		1252	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1253	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1254
809	w->active = active;	1255	w->active = active;
		1256	ev_ref (EV_A);
810	}	1257	}
811		1258
812	static void	1259	inline void
813	ev_stop (W w)	1260	ev_stop (EV_P_ W w)
814	{	1261	{
		1262	ev_unref (EV_A);
815	w->active = 0;	1263	w->active = 0;
816	}	1264	}
817		1265
818	/*****************************************************************************/	1266	/*****************************************************************************/
819		1267
820	void	1268	void
821	ev_io_start (struct ev_io *w)	1269	ev_io_start (EV_P_ struct ev_io *w)
822	{	1270	{
823	int fd = w->fd;	1271	int fd = w->fd;
824		1272
825	if (ev_is_active (w))	1273	if (ev_is_active (w))
826	return;	1274	return;
827		1275
828	assert (("ev_io_start called with negative fd", fd >= 0));	1276	assert (("ev_io_start called with negative fd", fd >= 0));
829		1277
830	ev_start ((W)w, 1);	1278	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1279	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1280	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		1281
834	fd_change (fd);	1282	fd_change (EV_A_ fd);
835	}	1283	}
836		1284
837	void	1285	void
838	ev_io_stop (struct ev_io *w)	1286	ev_io_stop (EV_P_ struct ev_io *w)
839	{	1287	{
840	ev_clear_pending ((W)w);	1288	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	1289	if (!ev_is_active (w))
842	return;	1290	return;
843		1291
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1292	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	1293	ev_stop (EV_A_ (W)w);
846		1294
847	fd_change (w->fd);	1295	fd_change (EV_A_ w->fd);
848	}	1296	}
849		1297
850	void	1298	void
851	ev_timer_start (struct ev_timer *w)	1299	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1300	{
853	if (ev_is_active (w))	1301	if (ev_is_active (w))
854	return;	1302	return;
855		1303
856	w->at += now;	1304	((WT)w)->at += mn_now;
857		1305
858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1306	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
859		1307
860	ev_start ((W)w, ++timercnt);	1308	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1309	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
862	timers [timercnt - 1] = w;	1310	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1311	upheap ((WT *)timers, timercnt - 1);
864	}
865		1312
		1313	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1314	}
		1315
866	void	1316	void
867	ev_timer_stop (struct ev_timer *w)	1317	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1318	{
869	ev_clear_pending ((W)w);	1319	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1320	if (!ev_is_active (w))
871	return;	1321	return;
872		1322
		1323	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1324
873	if (w->active < timercnt--)	1325	if (((W)w)->active < timercnt--)
874	{	1326	{
875	timers [w->active - 1] = timers [timercnt];	1327	timers [((W)w)->active - 1] = timers [timercnt];
876	downheap ((WT *)timers, timercnt, w->active - 1);	1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
877	}	1329	}
878		1330
879	w->at = w->repeat;	1331	((WT)w)->at = w->repeat;
880		1332
881	ev_stop ((W)w);	1333	ev_stop (EV_A_ (W)w);
882	}	1334	}
883		1335
884	void	1336	void
885	ev_timer_again (struct ev_timer *w)	1337	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1338	{
887	if (ev_is_active (w))	1339	if (ev_is_active (w))
888	{	1340	{
889	if (w->repeat)	1341	if (w->repeat)
890	{
891	w->at = now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1342	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
893	}
894	else	1343	else
895	ev_timer_stop (w);	1344	ev_timer_stop (EV_A_ w);
896	}	1345	}
897	else if (w->repeat)	1346	else if (w->repeat)
898	ev_timer_start (w);	1347	ev_timer_start (EV_A_ w);
899	}	1348	}
900		1349
901	void	1350	void
902	ev_periodic_start (struct ev_periodic *w)	1351	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1352	{
904	if (ev_is_active (w))	1353	if (ev_is_active (w))
905	return;	1354	return;
906		1355
		1356	if (w->reschedule_cb)
		1357	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1358	else if (w->interval)
		1359	{
907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1360	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
908
909	/* this formula differs from the one in periodic_reify because we do not always round up */	1361	/* this formula differs from the one in periodic_reify because we do not always round up */
910	if (w->interval)
911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1362	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1363	}
912		1364
913	ev_start ((W)w, ++periodiccnt);	1365	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1366	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
915	periodics [periodiccnt - 1] = w;	1367	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1368	upheap ((WT *)periodics, periodiccnt - 1);
917	}
918		1369
		1370	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1371	}
		1372
919	void	1373	void
920	ev_periodic_stop (struct ev_periodic *w)	1374	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1375	{
922	ev_clear_pending ((W)w);	1376	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1377	if (!ev_is_active (w))
924	return;	1378	return;
925		1379
		1380	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1381
926	if (w->active < periodiccnt--)	1382	if (((W)w)->active < periodiccnt--)
927	{	1383	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1384	periodics [((W)w)->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1385	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
930	}	1386	}
931		1387
932	ev_stop ((W)w);	1388	ev_stop (EV_A_ (W)w);
933	}	1389	}
934		1390
935	void	1391	void
		1392	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1393	{
		1394	/* TODO: use adjustheap and recalculation */
		1395	ev_periodic_stop (EV_A_ w);
		1396	ev_periodic_start (EV_A_ w);
		1397	}
		1398
		1399	void
936	ev_signal_start (struct ev_signal *w)	1400	ev_idle_start (EV_P_ struct ev_idle *w)
937	{	1401	{
938	if (ev_is_active (w))	1402	if (ev_is_active (w))
939	return;	1403	return;
940		1404
		1405	ev_start (EV_A_ (W)w, ++idlecnt);
		1406	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1407	idles [idlecnt - 1] = w;
		1408	}
		1409
		1410	void
		1411	ev_idle_stop (EV_P_ struct ev_idle *w)
		1412	{
		1413	ev_clear_pending (EV_A_ (W)w);
		1414	if (ev_is_active (w))
		1415	return;
		1416
		1417	idles [((W)w)->active - 1] = idles [--idlecnt];
		1418	ev_stop (EV_A_ (W)w);
		1419	}
		1420
		1421	void
		1422	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1423	{
		1424	if (ev_is_active (w))
		1425	return;
		1426
		1427	ev_start (EV_A_ (W)w, ++preparecnt);
		1428	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1429	prepares [preparecnt - 1] = w;
		1430	}
		1431
		1432	void
		1433	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1434	{
		1435	ev_clear_pending (EV_A_ (W)w);
		1436	if (ev_is_active (w))
		1437	return;
		1438
		1439	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1440	ev_stop (EV_A_ (W)w);
		1441	}
		1442
		1443	void
		1444	ev_check_start (EV_P_ struct ev_check *w)
		1445	{
		1446	if (ev_is_active (w))
		1447	return;
		1448
		1449	ev_start (EV_A_ (W)w, ++checkcnt);
		1450	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1451	checks [checkcnt - 1] = w;
		1452	}
		1453
		1454	void
		1455	ev_check_stop (EV_P_ struct ev_check *w)
		1456	{
		1457	ev_clear_pending (EV_A_ (W)w);
		1458	if (ev_is_active (w))
		1459	return;
		1460
		1461	checks [((W)w)->active - 1] = checks [--checkcnt];
		1462	ev_stop (EV_A_ (W)w);
		1463	}
		1464
		1465	#ifndef SA_RESTART
		1466	# define SA_RESTART 0
		1467	#endif
		1468
		1469	void
		1470	ev_signal_start (EV_P_ struct ev_signal *w)
		1471	{
		1472	#if EV_MULTIPLICITY
		1473	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1474	#endif
		1475	if (ev_is_active (w))
		1476	return;
		1477
941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1478	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
942		1479
943	ev_start ((W)w, 1);	1480	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1481	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1482	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1483
947	if (!w->next)	1484	if (!((WL)w)->next)
948	{	1485	{
		1486	#if WIN32
		1487	signal (w->signum, sighandler);
		1488	#else
949	struct sigaction sa;	1489	struct sigaction sa;
950	sa.sa_handler = sighandler;	1490	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1491	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1492	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1493	sigaction (w->signum, &sa, 0);
		1494	#endif
954	}	1495	}
955	}	1496	}
956		1497
957	void	1498	void
958	ev_signal_stop (struct ev_signal *w)	1499	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1500	{
960	ev_clear_pending ((W)w);	1501	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1502	if (!ev_is_active (w))
962	return;	1503	return;
963		1504
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1505	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1506	ev_stop (EV_A_ (W)w);
966		1507
967	if (!signals [w->signum - 1].head)	1508	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1509	signal (w->signum, SIG_DFL);
969	}	1510	}
970		1511
971	void	1512	void
972	ev_idle_start (struct ev_idle *w)	1513	ev_child_start (EV_P_ struct ev_child *w)
973	{	1514	{
		1515	#if EV_MULTIPLICITY
		1516	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1517	#endif
974	if (ev_is_active (w))	1518	if (ev_is_active (w))
975	return;	1519	return;
976		1520
977	ev_start ((W)w, ++idlecnt);	1521	ev_start (EV_A_ (W)w, 1);
978	array_needsize (idles, idlemax, idlecnt, );	1522	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
979	idles [idlecnt - 1] = w;
980	}	1523	}
981		1524
982	void	1525	void
983	ev_idle_stop (struct ev_idle *w)	1526	ev_child_stop (EV_P_ struct ev_child *w)
984	{	1527	{
985	ev_clear_pending ((W)w);	1528	ev_clear_pending (EV_A_ (W)w);
986	if (ev_is_active (w))	1529	if (ev_is_active (w))
987	return;	1530	return;
988		1531
989	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);
991	}
992
993	void
994	ev_prepare_start (struct ev_prepare *w)
995	{
996	if (ev_is_active (w))
997	return;
998
999	ev_start ((W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;
1002	}
1003
1004	void
1005	ev_prepare_stop (struct ev_prepare *w)
1006	{
1007	ev_clear_pending ((W)w);
1008	if (ev_is_active (w))
1009	return;
1010
1011	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);
1013	}
1014
1015	void
1016	ev_check_start (struct ev_check *w)
1017	{
1018	if (ev_is_active (w))
1019	return;
1020
1021	ev_start ((W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;
1024	}
1025
1026	void
1027	ev_check_stop (struct ev_check *w)
1028	{
1029	ev_clear_pending ((W)w);
1030	if (ev_is_active (w))
1031	return;
1032
1033	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);
1035	}
1036
1037	void
1038	ev_child_start (struct ev_child *w)
1039	{
1040	if (ev_is_active (w))
1041	return;
1042
1043	ev_start ((W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}
1046
1047	void
1048	ev_child_stop (struct ev_child *w)
1049	{
1050	ev_clear_pending ((W)w);
1051	if (ev_is_active (w))
1052	return;
1053
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1532	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1533	ev_stop (EV_A_ (W)w);
1056	}	1534	}
1057		1535
1058	/*****************************************************************************/	1536	/*****************************************************************************/
1059		1537
1060	struct ev_once	1538	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1542	void (cb)(int revents, void arg);
1065	void *arg;	1543	void *arg;
1066	};	1544	};
1067		1545
1068	static void	1546	static void
1069	once_cb (struct ev_once *once, int revents)	1547	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1548	{
1071	void (cb)(int revents, void arg) = once->cb;	1549	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1550	void *arg = once->arg;
1073		1551
1074	ev_io_stop (&once->io);	1552	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1553	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1554	ev_free (once);
1077		1555
1078	cb (revents, arg);	1556	cb (revents, arg);
1079	}	1557	}
1080		1558
1081	static void	1559	static void
1082	once_cb_io (struct ev_io *w, int revents)	1560	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1561	{
1084	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1562	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1085	}	1563	}
1086		1564
1087	static void	1565	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1566	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1567	{
1090	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1568	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1091	}	1569	}
1092		1570
1093	void	1571	void
1094	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1572	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1095	{	1573	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1574	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1097		1575
1098	if (!once)	1576	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1577	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1100	else	1578	else
1101	{	1579	{
1102	once->cb = cb;	1580	once->cb = cb;
1103	once->arg = arg;	1581	once->arg = arg;
1104		1582
1105	ev_watcher_init (&once->io, once_cb_io);	1583	ev_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1584	if (fd >= 0)
1107	{	1585	{
1108	ev_io_set (&once->io, fd, events);	1586	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1587	ev_io_start (EV_A_ &once->io);
1110	}	1588	}
1111		1589
1112	ev_watcher_init (&once->to, once_cb_to);	1590	ev_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1591	if (timeout >= 0.)
1114	{	1592	{
1115	ev_timer_set (&once->to, timeout, 0.);	1593	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1594	ev_timer_start (EV_A_ &once->to);
1117	}	1595	}
1118	}	1596	}
1119	}	1597	}
1120		1598
1121	/*****************************************************************************/
1122
1123	#if 0
1124
1125	struct ev_io wio;
1126
1127	static void
1128	sin_cb (struct ev_io *w, int revents)
1129	{
1130	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1131	}
1132
1133	static void
1134	ocb (struct ev_timer *w, int revents)
1135	{
1136	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1137	ev_timer_stop (w);
1138	ev_timer_start (w);
1139	}
1140
1141	static void
1142	scb (struct ev_signal *w, int revents)
1143	{
1144	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1145	ev_io_stop (&wio);
1146	ev_io_start (&wio);
1147	}
1148
1149	static void
1150	gcb (struct ev_signal *w, int revents)
1151	{
1152	fprintf (stderr, "generic %x\n", revents);
1153
1154	}
1155
1156	int main (void)
1157	{
1158	ev_init (0);
1159
1160	ev_io_init (&wio, sin_cb, 0, EV_READ);
1161	ev_io_start (&wio);
1162
1163	struct ev_timer t[10000];
1164
1165	#if 0
1166	int i;
1167	for (i = 0; i < 10000; ++i)
1168	{
1169	struct ev_timer *w = t + i;
1170	ev_watcher_init (w, ocb, i);
1171	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1172	ev_timer_start (w);
1173	if (drand48 () < 0.5)
1174	ev_timer_stop (w);
1175	}
1176	#endif
1177
1178	struct ev_timer t1;
1179	ev_timer_init (&t1, ocb, 5, 10);
1180	ev_timer_start (&t1);
1181
1182	struct ev_signal sig;
1183	ev_signal_init (&sig, scb, SIGQUIT);
1184	ev_signal_start (&sig);
1185
1186	struct ev_check cw;
1187	ev_check_init (&cw, gcb);
1188	ev_check_start (&cw);
1189
1190	struct ev_idle iw;
1191	ev_idle_init (&iw, gcb);
1192	ev_idle_start (&iw);
1193
1194	ev_loop (0);
1195
1196	return 0;
1197	}
1198
1199	#endif
1200
1201
1202
1203

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Comparing libev/ev.c (file contents): Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs. Revision 1.86 by root, Sat Nov 10 03:19:21 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.86 by root, Sat Nov 10 03:19:21 2007 UTC