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

Comparing libev/ev.c (file contents):
Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC vs.
Revision 1.84 by root, Fri Nov 9 23:04:35 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
		76	/**/
		77
51	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
52	# ifdef CLOCK_MONOTONIC
53	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
54	# endif
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
63	#endif	92	#endif
64		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
		106	#endif
		107
		108	#ifndef EV_USE_REALTIME
		109	# define EV_USE_REALTIME 1
		110	#endif
		111
		112	/**/
		113
		114	#ifndef CLOCK_MONOTONIC
		115	# undef EV_USE_MONOTONIC
		116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
65	#ifndef CLOCK_REALTIME	119	#ifndef CLOCK_REALTIME
		120	# undef EV_USE_REALTIME
66	# define EV_USE_REALTIME 0	121	# define EV_USE_REALTIME 0
67	#endif	122	#endif
68	#ifndef EV_USE_REALTIME	123
69	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */	124	/**/
70	#endif
71		125
72	#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) */
73	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */	127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
74	#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 */
75	#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* 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 */
76		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
77	#include "ev.h"	134	# include "ev.h"
		135	#endif
		136
		137	#if __GNUC__ >= 3
		138	# define expect(expr,value) __builtin_expect ((expr),(value))
		139	# define inline inline
		140	#else
		141	# define expect(expr,value) (expr)
		142	# define inline static
		143	#endif
		144
		145	#define expect_false(expr) expect ((expr) != 0, 0)
		146	#define expect_true(expr) expect ((expr) != 0, 1)
		147
		148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
78		150
79	typedef struct ev_watcher *W;	151	typedef struct ev_watcher *W;
80	typedef struct ev_watcher_list *WL;	152	typedef struct ev_watcher_list *WL;
81	typedef struct ev_watcher_time *WT;	153	typedef struct ev_watcher_time *WT;
82		154
83	static ev_tstamp now, diff; /* monotonic clock */	155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
84	ev_tstamp ev_now;
85	int ev_method;
86		156
87	static int have_monotonic; /* runtime */	157	#include "ev_win32.c"
88
89	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
90	static void (*method_modify)(int fd, int oev, int nev);
91	static void (*method_poll)(ev_tstamp timeout);
92		158
93	/*****************************************************************************/	159	/*****************************************************************************/
94		160
95	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	#define VAR(name,decl) decl;
		227	#include "ev_vars.h"
		228	#undef VAR
		229	};
		230	#include "ev_wrap.h"
		231
		232	struct ev_loop default_loop_struct;
		233	static struct ev_loop *default_loop;
		234
		235	#else
		236
		237	#define VAR(name,decl) static decl;
		238	#include "ev_vars.h"
		239	#undef VAR
		240
		241	static int default_loop;
		242
		243	#endif
		244
		245	/*****************************************************************************/
		246
		247	inline ev_tstamp
96	ev_time (void)	248	ev_time (void)
97	{	249	{
98	#if EV_USE_REALTIME	250	#if EV_USE_REALTIME
99	struct timespec ts;	251	struct timespec ts;
100	clock_gettime (CLOCK_REALTIME, &ts);	252	clock_gettime (CLOCK_REALTIME, &ts);
…		…
104	gettimeofday (&tv, 0);	256	gettimeofday (&tv, 0);
105	return tv.tv_sec + tv.tv_usec * 1e-6;	257	return tv.tv_sec + tv.tv_usec * 1e-6;
106	#endif	258	#endif
107	}	259	}
108		260
109	static ev_tstamp	261	inline ev_tstamp
110	get_clock (void)	262	get_clock (void)
111	{	263	{
112	#if EV_USE_MONOTONIC	264	#if EV_USE_MONOTONIC
113	if (have_monotonic)	265	if (expect_true (have_monotonic))
114	{	266	{
115	struct timespec ts;	267	struct timespec ts;
116	clock_gettime (CLOCK_MONOTONIC, &ts);	268	clock_gettime (CLOCK_MONOTONIC, &ts);
117	return ts.tv_sec + ts.tv_nsec * 1e-9;	269	return ts.tv_sec + ts.tv_nsec * 1e-9;
118	}	270	}
119	#endif	271	#endif
120		272
121	return ev_time ();	273	return ev_time ();
122	}	274	}
123		275
		276	ev_tstamp
		277	ev_now (EV_P)
		278	{
		279	return rt_now;
		280	}
		281
124	#define array_roundsize(base,n) ((n) \| 4 & ~3)	282	#define array_roundsize(type,n) ((n) \| 4 & ~3)
125		283
126	#define array_needsize(base,cur,cnt,init) \	284	#define array_needsize(type,base,cur,cnt,init) \
127	if ((cnt) > cur) \	285	if (expect_false ((cnt) > cur)) \
128	{ \	286	{ \
129	int newcnt = cur; \	287	int newcnt = cur; \
130	do \	288	do \
131	{ \	289	{ \
132	newcnt = array_roundsize (base, newcnt << 1); \	290	newcnt = array_roundsize (type, newcnt << 1); \
133	} \	291	} \
134	while ((cnt) > newcnt); \	292	while ((cnt) > newcnt); \
135	\	293	\
136	base = realloc (base, sizeof (base) (newcnt)); \	294	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
137	init (base + cur, newcnt - cur); \	295	init (base + cur, newcnt - cur); \
138	cur = newcnt; \	296	cur = newcnt; \
139	}	297	}
		298
		299	#define array_slim(type,stem) \
		300	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		301	{ \
		302	stem ## max = array_roundsize (stem ## cnt >> 1); \
		303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		305	}
		306
		307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		309	#define array_free_microshit(stem) \
		310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		311
		312	#define array_free(stem, idx) \
		313	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
140		314
141	/*****************************************************************************/	315	/*****************************************************************************/
142
143	typedef struct
144	{
145	struct ev_io *head;
146	unsigned char events;
147	unsigned char reify;
148	} ANFD;
149
150	static ANFD *anfds;
151	static int anfdmax;
152		316
153	static void	317	static void
154	anfds_init (ANFD *base, int count)	318	anfds_init (ANFD *base, int count)
155	{	319	{
156	while (count--)	320	while (count--)
…		…
161		325
162	++base;	326	++base;
163	}	327	}
164	}	328	}
165		329
166	typedef struct	330	void
		331	ev_feed_event (EV_P_ void *w, int revents)
167	{	332	{
168	W w;	333	W w_ = (W)w;
169	int events;
170	} ANPENDING;
171		334
172	static ANPENDING *pendings;
173	static int pendingmax, pendingcnt;
174
175	static void
176	event (W w, int events)
177	{
178	if (w->pending)	335	if (w_->pending)
179	{	336	{
180	pendings [w->pending - 1].events \|= events;	337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
181	return;	338	return;
182	}	339	}
183		340
184	w->pending = ++pendingcnt;	341	w_->pending = ++pendingcnt [ABSPRI (w_)];
185	array_needsize (pendings, pendingmax, pendingcnt, );	342	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
186	pendings [pendingcnt - 1].w = w;	343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
187	pendings [pendingcnt - 1].events = events;	344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
188	}	345	}
189		346
190	static void	347	static void
191	queue_events (W *events, int eventcnt, int type)	348	queue_events (EV_P_ W *events, int eventcnt, int type)
192	{	349	{
193	int i;	350	int i;
194		351
195	for (i = 0; i < eventcnt; ++i)	352	for (i = 0; i < eventcnt; ++i)
196	event (events [i], type);	353	ev_feed_event (EV_A_ events [i], type);
197	}	354	}
198		355
199	static void	356	inline void
200	fd_event (int fd, int events)	357	fd_event (EV_P_ int fd, int revents)
201	{	358	{
202	ANFD *anfd = anfds + fd;	359	ANFD *anfd = anfds + fd;
203	struct ev_io *w;	360	struct ev_io *w;
204		361
205	for (w = anfd->head; w; w = w->next)	362	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
206	{	363	{
207	int ev = w->events & events;	364	int ev = w->events & revents;
208		365
209	if (ev)	366	if (ev)
210	event ((W)w, ev);	367	ev_feed_event (EV_A_ (W)w, ev);
211	}	368	}
		369	}
		370
		371	void
		372	ev_feed_fd_event (EV_P_ int fd, int revents)
		373	{
		374	fd_event (EV_A_ fd, revents);
212	}	375	}
213		376
214	/*****************************************************************************/	377	/*****************************************************************************/
215		378
216	static int *fdchanges;
217	static int fdchangemax, fdchangecnt;
218
219	static void	379	static void
220	fd_reify (void)	380	fd_reify (EV_P)
221	{	381	{
222	int i;	382	int i;
223		383
224	for (i = 0; i < fdchangecnt; ++i)	384	for (i = 0; i < fdchangecnt; ++i)
225	{	385	{
…		…
227	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
228	struct ev_io *w;	388	struct ev_io *w;
229		389
230	int events = 0;	390	int events = 0;
231		391
232	for (w = anfd->head; w; w = w->next)	392	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
233	events \|= w->events;	393	events \|= w->events;
234		394
235	anfd->reify = 0;	395	anfd->reify = 0;
236		396
237	if (anfd->events != events)
238	{
239	method_modify (fd, anfd->events, events);	397	method_modify (EV_A_ fd, anfd->events, events);
240	anfd->events = events;	398	anfd->events = events;
241	}
242	}	399	}
243		400
244	fdchangecnt = 0;	401	fdchangecnt = 0;
245	}	402	}
246		403
247	static void	404	static void
248	fd_change (int fd)	405	fd_change (EV_P_ int fd)
249	{	406	{
250	if (anfds [fd].reify \|\| fdchangecnt < 0)	407	if (anfds [fd].reify)
251	return;	408	return;
252		409
253	anfds [fd].reify = 1;	410	anfds [fd].reify = 1;
254		411
255	++fdchangecnt;	412	++fdchangecnt;
256	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
257	fdchanges [fdchangecnt - 1] = fd;	414	fdchanges [fdchangecnt - 1] = fd;
258	}	415	}
259		416
		417	static void
		418	fd_kill (EV_P_ int fd)
		419	{
		420	struct ev_io *w;
		421
		422	while ((w = (struct ev_io *)anfds [fd].head))
		423	{
		424	ev_io_stop (EV_A_ w);
		425	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		426	}
		427	}
		428
		429	static int
		430	fd_valid (int fd)
		431	{
		432	#ifdef WIN32
		433	return !!win32_get_osfhandle (fd);
		434	#else
		435	return fcntl (fd, F_GETFD) != -1;
		436	#endif
		437	}
		438
260	/* called on EBADF to verify fds */	439	/* called on EBADF to verify fds */
261	static void	440	static void
262	fd_recheck (void)	441	fd_ebadf (EV_P)
263	{	442	{
264	int fd;	443	int fd;
265		444
266	for (fd = 0; fd < anfdmax; ++fd)	445	for (fd = 0; fd < anfdmax; ++fd)
267	if (anfds [fd].events)	446	if (anfds [fd].events)
268	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	447	if (!fd_valid (fd) == -1 && errno == EBADF)
269	while (anfds [fd].head)	448	fd_kill (EV_A_ fd);
		449	}
		450
		451	/* called on ENOMEM in select/poll to kill some fds and retry */
		452	static void
		453	fd_enomem (EV_P)
		454	{
		455	int fd;
		456
		457	for (fd = anfdmax; fd--; )
		458	if (anfds [fd].events)
270	{	459	{
271	ev_io_stop (anfds [fd].head);	460	fd_kill (EV_A_ fd);
272	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	461	return;
273	}	462	}
		463	}
		464
		465	/* usually called after fork if method needs to re-arm all fds from scratch */
		466	static void
		467	fd_rearm_all (EV_P)
		468	{
		469	int fd;
		470
		471	/* this should be highly optimised to not do anything but set a flag */
		472	for (fd = 0; fd < anfdmax; ++fd)
		473	if (anfds [fd].events)
		474	{
		475	anfds [fd].events = 0;
		476	fd_change (EV_A_ fd);
		477	}
274	}	478	}
275		479
276	/*****************************************************************************/	480	/*****************************************************************************/
277		481
278	static struct ev_timer **timers;
279	static int timermax, timercnt;
280
281	static struct ev_periodic **periodics;
282	static int periodicmax, periodiccnt;
283
284	static void	482	static void
285	upheap (WT *timers, int k)	483	upheap (WT *heap, int k)
286	{	484	{
287	WT w = timers [k];	485	WT w = heap [k];
288		486
289	while (k && timers [k >> 1]->at > w->at)	487	while (k && heap [k >> 1]->at > w->at)
290	{	488	{
291	timers [k] = timers [k >> 1];	489	heap [k] = heap [k >> 1];
292	timers [k]->active = k + 1;	490	((W)heap [k])->active = k + 1;
293	k >>= 1;	491	k >>= 1;
294	}	492	}
295		493
296	timers [k] = w;	494	heap [k] = w;
297	timers [k]->active = k + 1;	495	((W)heap [k])->active = k + 1;
298		496
299	}	497	}
300		498
301	static void	499	static void
302	downheap (WT *timers, int N, int k)	500	downheap (WT *heap, int N, int k)
303	{	501	{
304	WT w = timers [k];	502	WT w = heap [k];
305		503
306	while (k < (N >> 1))	504	while (k < (N >> 1))
307	{	505	{
308	int j = k << 1;	506	int j = k << 1;
309		507
310	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	508	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
311	++j;	509	++j;
312		510
313	if (w->at <= timers [j]->at)	511	if (w->at <= heap [j]->at)
314	break;	512	break;
315		513
316	timers [k] = timers [j];	514	heap [k] = heap [j];
317	timers [k]->active = k + 1;	515	((W)heap [k])->active = k + 1;
318	k = j;	516	k = j;
319	}	517	}
320		518
321	timers [k] = w;	519	heap [k] = w;
322	timers [k]->active = k + 1;	520	((W)heap [k])->active = k + 1;
		521	}
		522
		523	inline void
		524	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		525	{
		526	ev_tstamp old_at = heap [k]->at;
		527	heap [k]->at = at;
		528
		529	if (old_at < at)
		530	downheap (heap, N, k);
		531	else
		532	upheap (heap, k);
323	}	533	}
324		534
325	/*****************************************************************************/	535	/*****************************************************************************/
326		536
327	typedef struct	537	typedef struct
328	{	538	{
329	struct ev_signal *head;	539	WL head;
330	sig_atomic_t volatile gotsig;	540	sig_atomic_t volatile gotsig;
331	} ANSIG;	541	} ANSIG;
332		542
333	static ANSIG *signals;	543	static ANSIG *signals;
334	static int signalmax;	544	static int signalmax;
…		…
350	}	560	}
351		561
352	static void	562	static void
353	sighandler (int signum)	563	sighandler (int signum)
354	{	564	{
		565	#if WIN32
		566	signal (signum, sighandler);
		567	#endif
		568
355	signals [signum - 1].gotsig = 1;	569	signals [signum - 1].gotsig = 1;
356		570
357	if (!gotsig)	571	if (!gotsig)
358	{	572	{
		573	int old_errno = errno;
359	gotsig = 1;	574	gotsig = 1;
		575	#ifdef WIN32
		576	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		577	#else
360	write (sigpipe [1], &signum, 1);	578	write (sigpipe [1], &signum, 1);
		579	#endif
		580	errno = old_errno;
361	}	581	}
362	}	582	}
363		583
		584	void
		585	ev_feed_signal_event (EV_P_ int signum)
		586	{
		587	WL w;
		588
		589	#if EV_MULTIPLICITY
		590	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		591	#endif
		592
		593	--signum;
		594
		595	if (signum < 0 \|\| signum >= signalmax)
		596	return;
		597
		598	signals [signum].gotsig = 0;
		599
		600	for (w = signals [signum].head; w; w = w->next)
		601	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		602	}
		603
364	static void	604	static void
365	sigcb (struct ev_io *iow, int revents)	605	sigcb (EV_P_ struct ev_io *iow, int revents)
366	{	606	{
367	struct ev_signal *w;
368	int sig;	607	int signum;
369		608
		609	#ifdef WIN32
		610	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		611	#else
370	read (sigpipe [0], &revents, 1);	612	read (sigpipe [0], &revents, 1);
		613	#endif
371	gotsig = 0;	614	gotsig = 0;
372		615
373	for (sig = signalmax; sig--; )	616	for (signum = signalmax; signum--; )
374	if (signals [sig].gotsig)	617	if (signals [signum].gotsig)
375	{	618	ev_feed_signal_event (EV_A_ signum + 1);
376	signals [sig].gotsig = 0;
377
378	for (w = signals [sig].head; w; w = w->next)
379	event ((W)w, EV_SIGNAL);
380	}
381	}	619	}
382		620
383	static void	621	static void
384	siginit (void)	622	siginit (EV_P)
385	{	623	{
		624	#ifndef WIN32
386	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	625	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
387	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	626	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
388		627
389	/* rather than sort out wether we really need nb, set it */	628	/* rather than sort out wether we really need nb, set it */
390	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	629	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
391	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	630	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		631	#endif
392		632
393	ev_io_set (&sigev, sigpipe [0], EV_READ);	633	ev_io_set (&sigev, sigpipe [0], EV_READ);
394	ev_io_start (&sigev);	634	ev_io_start (EV_A_ &sigev);
		635	ev_unref (EV_A); /* child watcher should not keep loop alive */
395	}	636	}
396		637
397	/*****************************************************************************/	638	/*****************************************************************************/
398		639
399	static struct ev_idle **idles;
400	static int idlemax, idlecnt;
401
402	static struct ev_prepare **prepares;
403	static int preparemax, preparecnt;
404
405	static struct ev_check **checks;
406	static int checkmax, checkcnt;
407
408	/*****************************************************************************/
409
410	static struct ev_child *childs [PID_HASHSIZE];	640	static struct ev_child *childs [PID_HASHSIZE];
		641
		642	#ifndef WIN32
		643
411	static struct ev_signal childev;	644	static struct ev_signal childev;
412		645
413	#ifndef WCONTINUED	646	#ifndef WCONTINUED
414	# define WCONTINUED 0	647	# define WCONTINUED 0
415	#endif	648	#endif
416		649
417	static void	650	static void
418	childcb (struct ev_signal *sw, int revents)	651	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
419	{	652	{
420	struct ev_child *w;	653	struct ev_child *w;
		654
		655	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		656	if (w->pid == pid \|\| !w->pid)
		657	{
		658	ev_priority (w) = ev_priority (sw); /* need to do it now */
		659	w->rpid = pid;
		660	w->rstatus = status;
		661	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		662	}
		663	}
		664
		665	static void
		666	childcb (EV_P_ struct ev_signal *sw, int revents)
		667	{
421	int pid, status;	668	int pid, status;
422		669
423	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	670	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
424	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	671	{
425	if (w->pid == pid \|\| w->pid == -1)	672	/* make sure we are called again until all childs have been reaped */
426	{	673	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
427	w->status = status;	674
428	event ((W)w, EV_CHILD);	675	child_reap (EV_A_ sw, pid, pid, status);
429	}	676	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		677	}
430	}	678	}
		679
		680	#endif
431		681
432	/*****************************************************************************/	682	/*****************************************************************************/
433		683
		684	#if EV_USE_KQUEUE
		685	# include "ev_kqueue.c"
		686	#endif
434	#if EV_USE_EPOLL	687	#if EV_USE_EPOLL
435	# include "ev_epoll.c"	688	# include "ev_epoll.c"
436	#endif	689	#endif
		690	#if EV_USE_POLL
		691	# include "ev_poll.c"
		692	#endif
437	#if EV_USE_SELECT	693	#if EV_USE_SELECT
438	# include "ev_select.c"	694	# include "ev_select.c"
439	#endif	695	#endif
440		696
441	int	697	int
…		…
448	ev_version_minor (void)	704	ev_version_minor (void)
449	{	705	{
450	return EV_VERSION_MINOR;	706	return EV_VERSION_MINOR;
451	}	707	}
452		708
453	int ev_init (int flags)	709	/* return true if we are running with elevated privileges and should ignore env variables */
		710	static int
		711	enable_secure (void)
454	{	712	{
		713	#ifdef WIN32
		714	return 0;
		715	#else
		716	return getuid () != geteuid ()
		717	\|\| getgid () != getegid ();
		718	#endif
		719	}
		720
		721	int
		722	ev_method (EV_P)
		723	{
		724	return method;
		725	}
		726
		727	static void
		728	loop_init (EV_P_ int methods)
		729	{
455	if (!ev_method)	730	if (!method)
456	{	731	{
457	#if EV_USE_MONOTONIC	732	#if EV_USE_MONOTONIC
458	{	733	{
459	struct timespec ts;	734	struct timespec ts;
460	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	735	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
461	have_monotonic = 1;	736	have_monotonic = 1;
462	}	737	}
463	#endif	738	#endif
464		739
465	ev_now = ev_time ();	740	rt_now = ev_time ();
466	now = get_clock ();	741	mn_now = get_clock ();
		742	now_floor = mn_now;
467	diff = ev_now - now;	743	rtmn_diff = rt_now - mn_now;
468		744
469	if (pipe (sigpipe))	745	if (methods == EVMETHOD_AUTO)
470	return 0;	746	if (!enable_secure () && getenv ("LIBEV_METHODS"))
471		747	methods = atoi (getenv ("LIBEV_METHODS"));
		748	else
472	ev_method = EVMETHOD_NONE;	749	methods = EVMETHOD_ANY;
		750
		751	method = 0;
		752	#if EV_USE_WIN32
		753	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		754	#endif
		755	#if EV_USE_KQUEUE
		756	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		757	#endif
473	#if EV_USE_EPOLL	758	#if EV_USE_EPOLL
474	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	759	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		760	#endif
		761	#if EV_USE_POLL
		762	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
475	#endif	763	#endif
476	#if EV_USE_SELECT	764	#if EV_USE_SELECT
477	if (ev_method == EVMETHOD_NONE) select_init (flags);	765	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
478	#endif	766	#endif
479		767
		768	ev_init (&sigev, sigcb);
		769	ev_set_priority (&sigev, EV_MAXPRI);
		770	}
		771	}
		772
		773	void
		774	loop_destroy (EV_P)
		775	{
		776	int i;
		777
		778	#if EV_USE_WIN32
		779	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		780	#endif
		781	#if EV_USE_KQUEUE
		782	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		783	#endif
		784	#if EV_USE_EPOLL
		785	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		786	#endif
		787	#if EV_USE_POLL
		788	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		789	#endif
		790	#if EV_USE_SELECT
		791	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		792	#endif
		793
		794	for (i = NUMPRI; i--; )
		795	array_free (pending, [i]);
		796
		797	/* have to use the microsoft-never-gets-it-right macro */
		798	array_free_microshit (fdchange);
		799	array_free_microshit (timer);
		800	array_free_microshit (periodic);
		801	array_free_microshit (idle);
		802	array_free_microshit (prepare);
		803	array_free_microshit (check);
		804
		805	method = 0;
		806	}
		807
		808	static void
		809	loop_fork (EV_P)
		810	{
		811	#if EV_USE_EPOLL
		812	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		813	#endif
		814	#if EV_USE_KQUEUE
		815	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		816	#endif
		817
		818	if (ev_is_active (&sigev))
		819	{
		820	/* default loop */
		821
		822	ev_ref (EV_A);
		823	ev_io_stop (EV_A_ &sigev);
		824	close (sigpipe [0]);
		825	close (sigpipe [1]);
		826
		827	while (pipe (sigpipe))
		828	syserr ("(libev) error creating pipe");
		829
		830	siginit (EV_A);
		831	}
		832
		833	postfork = 0;
		834	}
		835
		836	#if EV_MULTIPLICITY
		837	struct ev_loop *
		838	ev_loop_new (int methods)
		839	{
		840	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		841
		842	memset (loop, 0, sizeof (struct ev_loop));
		843
		844	loop_init (EV_A_ methods);
		845
		846	if (ev_method (EV_A))
		847	return loop;
		848
		849	return 0;
		850	}
		851
		852	void
		853	ev_loop_destroy (EV_P)
		854	{
		855	loop_destroy (EV_A);
		856	ev_free (loop);
		857	}
		858
		859	void
		860	ev_loop_fork (EV_P)
		861	{
		862	postfork = 1;
		863	}
		864
		865	#endif
		866
		867	#if EV_MULTIPLICITY
		868	struct ev_loop *
		869	#else
		870	int
		871	#endif
		872	ev_default_loop (int methods)
		873	{
		874	if (sigpipe [0] == sigpipe [1])
		875	if (pipe (sigpipe))
		876	return 0;
		877
		878	if (!default_loop)
		879	{
		880	#if EV_MULTIPLICITY
		881	struct ev_loop *loop = default_loop = &default_loop_struct;
		882	#else
		883	default_loop = 1;
		884	#endif
		885
		886	loop_init (EV_A_ methods);
		887
480	if (ev_method)	888	if (ev_method (EV_A))
481	{	889	{
482	ev_watcher_init (&sigev, sigcb);
483	siginit ();	890	siginit (EV_A);
484		891
		892	#ifndef WIN32
485	ev_signal_init (&childev, childcb, SIGCHLD);	893	ev_signal_init (&childev, childcb, SIGCHLD);
		894	ev_set_priority (&childev, EV_MAXPRI);
486	ev_signal_start (&childev);	895	ev_signal_start (EV_A_ &childev);
		896	ev_unref (EV_A); /* child watcher should not keep loop alive */
		897	#endif
487	}	898	}
		899	else
		900	default_loop = 0;
488	}	901	}
489		902
490	return ev_method;	903	return default_loop;
		904	}
		905
		906	void
		907	ev_default_destroy (void)
		908	{
		909	#if EV_MULTIPLICITY
		910	struct ev_loop *loop = default_loop;
		911	#endif
		912
		913	#ifndef WIN32
		914	ev_ref (EV_A); /* child watcher */
		915	ev_signal_stop (EV_A_ &childev);
		916	#endif
		917
		918	ev_ref (EV_A); /* signal watcher */
		919	ev_io_stop (EV_A_ &sigev);
		920
		921	close (sigpipe [0]); sigpipe [0] = 0;
		922	close (sigpipe [1]); sigpipe [1] = 0;
		923
		924	loop_destroy (EV_A);
		925	}
		926
		927	void
		928	ev_default_fork (void)
		929	{
		930	#if EV_MULTIPLICITY
		931	struct ev_loop *loop = default_loop;
		932	#endif
		933
		934	if (method)
		935	postfork = 1;
491	}	936	}
492		937
493	/*****************************************************************************/	938	/*****************************************************************************/
494		939
495	void
496	ev_fork_prepare (void)
497	{
498	/* nop */
499	}
500
501	void
502	ev_fork_parent (void)
503	{
504	/* nop */
505	}
506
507	void
508	ev_fork_child (void)
509	{
510	#if EV_USE_EPOLL
511	if (ev_method == EVMETHOD_EPOLL)
512	epoll_postfork_child ();
513	#endif
514
515	ev_io_stop (&sigev);
516	close (sigpipe [0]);
517	close (sigpipe [1]);
518	pipe (sigpipe);
519	siginit ();
520	}
521
522	/*****************************************************************************/
523
524	static void	940	static int
		941	any_pending (EV_P)
		942	{
		943	int pri;
		944
		945	for (pri = NUMPRI; pri--; )
		946	if (pendingcnt [pri])
		947	return 1;
		948
		949	return 0;
		950	}
		951
		952	static void
525	call_pending (void)	953	call_pending (EV_P)
526	{	954	{
		955	int pri;
		956
		957	for (pri = NUMPRI; pri--; )
527	while (pendingcnt)	958	while (pendingcnt [pri])
528	{	959	{
529	ANPENDING *p = pendings + --pendingcnt;	960	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
530		961
531	if (p->w)	962	if (p->w)
532	{	963	{
533	p->w->pending = 0;	964	p->w->pending = 0;
534	p->w->cb (p->w, p->events);	965	EV_CB_INVOKE (p->w, p->events);
535	}	966	}
536	}	967	}
537	}	968	}
538		969
539	static void	970	static void
540	timers_reify (void)	971	timers_reify (EV_P)
541	{	972	{
542	while (timercnt && timers [0]->at <= now)	973	while (timercnt && ((WT)timers [0])->at <= mn_now)
543	{	974	{
544	struct ev_timer *w = timers [0];	975	struct ev_timer *w = timers [0];
		976
		977	assert (("inactive timer on timer heap detected", ev_is_active (w)));
545		978
546	/* first reschedule or stop timer */	979	/* first reschedule or stop timer */
547	if (w->repeat)	980	if (w->repeat)
548	{	981	{
549	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	982	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
550	w->at = now + w->repeat;	983	((WT)w)->at = mn_now + w->repeat;
551	downheap ((WT *)timers, timercnt, 0);	984	downheap ((WT *)timers, timercnt, 0);
552	}	985	}
553	else	986	else
554	ev_timer_stop (w); /* nonrepeating: stop timer */	987	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
555		988
556	event ((W)w, EV_TIMEOUT);	989	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
557	}	990	}
558	}	991	}
559		992
560	static void	993	static void
561	periodics_reify (void)	994	periodics_reify (EV_P)
562	{	995	{
563	while (periodiccnt && periodics [0]->at <= ev_now)	996	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
564	{	997	{
565	struct ev_periodic *w = periodics [0];	998	struct ev_periodic *w = periodics [0];
566		999
		1000	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1001
567	/* first reschedule or stop timer */	1002	/* first reschedule or stop timer */
568	if (w->interval)	1003	if (w->reschedule_cb)
569	{	1004	{
		1005	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		1006
		1007	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		1008	downheap ((WT *)periodics, periodiccnt, 0);
		1009	}
		1010	else if (w->interval)
		1011	{
570	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1012	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
571	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1013	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
572	downheap ((WT *)periodics, periodiccnt, 0);	1014	downheap ((WT *)periodics, periodiccnt, 0);
573	}	1015	}
574	else	1016	else
575	ev_periodic_stop (w); /* nonrepeating: stop timer */	1017	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
576		1018
577	event ((W)w, EV_PERIODIC);	1019	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
578	}	1020	}
579	}	1021	}
580		1022
581	static void	1023	static void
582	periodics_reschedule (ev_tstamp diff)	1024	periodics_reschedule (EV_P)
583	{	1025	{
584	int i;	1026	int i;
585		1027
586	/* adjust periodics after time jump */	1028	/* adjust periodics after time jump */
587	for (i = 0; i < periodiccnt; ++i)	1029	for (i = 0; i < periodiccnt; ++i)
588	{	1030	{
589	struct ev_periodic *w = periodics [i];	1031	struct ev_periodic *w = periodics [i];
590		1032
		1033	if (w->reschedule_cb)
		1034	((WT)w)->at = w->reschedule_cb (w, rt_now);
591	if (w->interval)	1035	else if (w->interval)
		1036	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1037	}
		1038
		1039	/* now rebuild the heap */
		1040	for (i = periodiccnt >> 1; i--; )
		1041	downheap ((WT *)periodics, periodiccnt, i);
		1042	}
		1043
		1044	inline int
		1045	time_update_monotonic (EV_P)
		1046	{
		1047	mn_now = get_clock ();
		1048
		1049	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
		1050	{
		1051	rt_now = rtmn_diff + mn_now;
		1052	return 0;
		1053	}
		1054	else
		1055	{
		1056	now_floor = mn_now;
		1057	rt_now = ev_time ();
		1058	return 1;
		1059	}
		1060	}
		1061
		1062	static void
		1063	time_update (EV_P)
		1064	{
		1065	int i;
		1066
		1067	#if EV_USE_MONOTONIC
		1068	if (expect_true (have_monotonic))
		1069	{
		1070	if (time_update_monotonic (EV_A))
592	{	1071	{
593	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1072	ev_tstamp odiff = rtmn_diff;
594		1073
595	if (fabs (diff) >= 1e-4)	1074	for (i = 4; --i; ) /* loop a few times, before making important decisions */
596	{	1075	{
597	ev_periodic_stop (w);	1076	rtmn_diff = rt_now - mn_now;
598	ev_periodic_start (w);
599		1077
600	i = 0; /* restart loop, inefficient, but time jumps should be rare */	1078	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
		1079	return; /* all is well */
		1080
		1081	rt_now = ev_time ();
		1082	mn_now = get_clock ();
		1083	now_floor = mn_now;
601	}	1084	}
		1085
		1086	periodics_reschedule (EV_A);
		1087	/* no timer adjustment, as the monotonic clock doesn't jump */
		1088	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
602	}	1089	}
603	}	1090	}
604	}	1091	else
605		1092	#endif
606	static void	1093	{
607	time_update (void)
608	{
609	int i;
610
611	ev_now = ev_time ();	1094	rt_now = ev_time ();
612		1095
613	if (have_monotonic)	1096	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
614	{
615	ev_tstamp odiff = diff;
616
617	for (i = 4; --i; ) /* loop a few times, before making important decisions */
618	{	1097	{
619	now = get_clock ();
620	diff = ev_now - now;
621
622	if (fabs (odiff - diff) < MIN_TIMEJUMP)
623	return; /* all is well */
624
625	ev_now = ev_time ();
626	}
627
628	periodics_reschedule (diff - odiff);
629	/* no timer adjustment, as the monotonic clock doesn't jump */
630	}
631	else
632	{
633	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
634	{
635	periodics_reschedule (ev_now - now);	1098	periodics_reschedule (EV_A);
636		1099
637	/* adjust timers. this is easy, as the offset is the same for all */	1100	/* adjust timers. this is easy, as the offset is the same for all */
638	for (i = 0; i < timercnt; ++i)	1101	for (i = 0; i < timercnt; ++i)
639	timers [i]->at += diff;	1102	((WT)timers [i])->at += rt_now - mn_now;
640	}	1103	}
641		1104
642	now = ev_now;	1105	mn_now = rt_now;
643	}	1106	}
644	}	1107	}
645		1108
646	int ev_loop_done;	1109	void
		1110	ev_ref (EV_P)
		1111	{
		1112	++activecnt;
		1113	}
647		1114
		1115	void
		1116	ev_unref (EV_P)
		1117	{
		1118	--activecnt;
		1119	}
		1120
		1121	static int loop_done;
		1122
		1123	void
648	void ev_loop (int flags)	1124	ev_loop (EV_P_ int flags)
649	{	1125	{
650	double block;	1126	double block;
651	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1127	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
652		1128
653	do	1129	do
654	{	1130	{
655	/* queue check watchers (and execute them) */	1131	/* queue check watchers (and execute them) */
656	if (preparecnt)	1132	if (expect_false (preparecnt))
657	{	1133	{
658	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1134	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
659	call_pending ();	1135	call_pending (EV_A);
660	}	1136	}
661		1137
		1138	/* we might have forked, so reify kernel state if necessary */
		1139	if (expect_false (postfork))
		1140	loop_fork (EV_A);
		1141
662	/* update fd-related kernel structures */	1142	/* update fd-related kernel structures */
663	fd_reify ();	1143	fd_reify (EV_A);
664		1144
665	/* calculate blocking time */	1145	/* calculate blocking time */
666		1146
667	/* we only need this for !monotonic clockor timers, but as we basically	1147	/* we only need this for !monotonic clock or timers, but as we basically
668	always have timers, we just calculate it always */	1148	always have timers, we just calculate it always */
		1149	#if EV_USE_MONOTONIC
		1150	if (expect_true (have_monotonic))
		1151	time_update_monotonic (EV_A);
		1152	else
		1153	#endif
		1154	{
669	ev_now = ev_time ();	1155	rt_now = ev_time ();
		1156	mn_now = rt_now;
		1157	}
670		1158
671	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1159	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
672	block = 0.;	1160	block = 0.;
673	else	1161	else
674	{	1162	{
675	block = MAX_BLOCKTIME;	1163	block = MAX_BLOCKTIME;
676		1164
677	if (timercnt)	1165	if (timercnt)
678	{	1166	{
679	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	1167	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
680	if (block > to) block = to;	1168	if (block > to) block = to;
681	}	1169	}
682		1170
683	if (periodiccnt)	1171	if (periodiccnt)
684	{	1172	{
685	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1173	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
686	if (block > to) block = to;	1174	if (block > to) block = to;
687	}	1175	}
688		1176
689	if (block < 0.) block = 0.;	1177	if (block < 0.) block = 0.;
690	}	1178	}
691		1179
692	method_poll (block);	1180	method_poll (EV_A_ block);
693		1181
694	/* update ev_now, do magic */	1182	/* update rt_now, do magic */
695	time_update ();	1183	time_update (EV_A);
696		1184
697	/* queue pending timers and reschedule them */	1185	/* queue pending timers and reschedule them */
698	timers_reify (); /* relative timers called last */	1186	timers_reify (EV_A); /* relative timers called last */
699	periodics_reify (); /* absolute timers called first */	1187	periodics_reify (EV_A); /* absolute timers called first */
700		1188
701	/* queue idle watchers unless io or timers are pending */	1189	/* queue idle watchers unless io or timers are pending */
702	if (!pendingcnt)	1190	if (idlecnt && !any_pending (EV_A))
703	queue_events ((W *)idles, idlecnt, EV_IDLE);	1191	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
704		1192
705	/* queue check watchers, to be executed first */	1193	/* queue check watchers, to be executed first */
706	if (checkcnt)	1194	if (checkcnt)
707	queue_events ((W *)checks, checkcnt, EV_CHECK);	1195	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
708		1196
709	call_pending ();	1197	call_pending (EV_A);
710	}	1198	}
711	while (!ev_loop_done);	1199	while (activecnt && !loop_done);
712		1200
713	if (ev_loop_done != 2)	1201	if (loop_done != 2)
714	ev_loop_done = 0;	1202	loop_done = 0;
		1203	}
		1204
		1205	void
		1206	ev_unloop (EV_P_ int how)
		1207	{
		1208	loop_done = how;
715	}	1209	}
716		1210
717	/*****************************************************************************/	1211	/*****************************************************************************/
718		1212
719	static void	1213	inline void
720	wlist_add (WL *head, WL elem)	1214	wlist_add (WL *head, WL elem)
721	{	1215	{
722	elem->next = *head;	1216	elem->next = *head;
723	*head = elem;	1217	*head = elem;
724	}	1218	}
725		1219
726	static void	1220	inline void
727	wlist_del (WL *head, WL elem)	1221	wlist_del (WL *head, WL elem)
728	{	1222	{
729	while (*head)	1223	while (*head)
730	{	1224	{
731	if (*head == elem)	1225	if (*head == elem)
…		…
736		1230
737	head = &(*head)->next;	1231	head = &(*head)->next;
738	}	1232	}
739	}	1233	}
740		1234
741	static void	1235	inline void
742	ev_clear_pending (W w)	1236	ev_clear_pending (EV_P_ W w)
743	{	1237	{
744	if (w->pending)	1238	if (w->pending)
745	{	1239	{
746	pendings [w->pending - 1].w = 0;	1240	pendings [ABSPRI (w)][w->pending - 1].w = 0;
747	w->pending = 0;	1241	w->pending = 0;
748	}	1242	}
749	}	1243	}
750		1244
751	static void	1245	inline void
752	ev_start (W w, int active)	1246	ev_start (EV_P_ W w, int active)
753	{	1247	{
		1248	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1249	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1250
754	w->active = active;	1251	w->active = active;
		1252	ev_ref (EV_A);
755	}	1253	}
756		1254
757	static void	1255	inline void
758	ev_stop (W w)	1256	ev_stop (EV_P_ W w)
759	{	1257	{
		1258	ev_unref (EV_A);
760	w->active = 0;	1259	w->active = 0;
761	}	1260	}
762		1261
763	/*****************************************************************************/	1262	/*****************************************************************************/
764		1263
765	void	1264	void
766	ev_io_start (struct ev_io *w)	1265	ev_io_start (EV_P_ struct ev_io *w)
767	{	1266	{
		1267	int fd = w->fd;
		1268
768	if (ev_is_active (w))	1269	if (ev_is_active (w))
769	return;	1270	return;
770		1271
771	int fd = w->fd;
772
773	assert (("ev_io_start called with negative fd", fd >= 0));	1272	assert (("ev_io_start called with negative fd", fd >= 0));
774		1273
775	ev_start ((W)w, 1);	1274	ev_start (EV_A_ (W)w, 1);
776	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1275	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
777	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1276	wlist_add ((WL *)&anfds[fd].head, (WL)w);
778		1277
779	fd_change (fd);	1278	fd_change (EV_A_ fd);
780	}	1279	}
781		1280
782	void	1281	void
783	ev_io_stop (struct ev_io *w)	1282	ev_io_stop (EV_P_ struct ev_io *w)
784	{	1283	{
785	ev_clear_pending ((W)w);	1284	ev_clear_pending (EV_A_ (W)w);
786	if (!ev_is_active (w))	1285	if (!ev_is_active (w))
787	return;	1286	return;
788		1287
789	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1288	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
790	ev_stop ((W)w);	1289	ev_stop (EV_A_ (W)w);
791		1290
792	fd_change (w->fd);	1291	fd_change (EV_A_ w->fd);
793	}	1292	}
794		1293
795	void	1294	void
796	ev_timer_start (struct ev_timer *w)	1295	ev_timer_start (EV_P_ struct ev_timer *w)
797	{	1296	{
798	if (ev_is_active (w))	1297	if (ev_is_active (w))
799	return;	1298	return;
800		1299
801	w->at += now;	1300	((WT)w)->at += mn_now;
802		1301
803	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1302	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
804		1303
805	ev_start ((W)w, ++timercnt);	1304	ev_start (EV_A_ (W)w, ++timercnt);
806	array_needsize (timers, timermax, timercnt, );	1305	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
807	timers [timercnt - 1] = w;	1306	timers [timercnt - 1] = w;
808	upheap ((WT *)timers, timercnt - 1);	1307	upheap ((WT *)timers, timercnt - 1);
809	}
810		1308
		1309	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1310	}
		1311
811	void	1312	void
812	ev_timer_stop (struct ev_timer *w)	1313	ev_timer_stop (EV_P_ struct ev_timer *w)
813	{	1314	{
814	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
815	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
816	return;	1317	return;
817		1318
		1319	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1320
818	if (w->active < timercnt--)	1321	if (((W)w)->active < timercnt--)
819	{	1322	{
820	timers [w->active - 1] = timers [timercnt];	1323	timers [((W)w)->active - 1] = timers [timercnt];
821	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
822	}	1325	}
823		1326
824	w->at = w->repeat;	1327	((WT)w)->at = w->repeat;
825		1328
826	ev_stop ((W)w);	1329	ev_stop (EV_A_ (W)w);
827	}	1330	}
828		1331
829	void	1332	void
830	ev_timer_again (struct ev_timer *w)	1333	ev_timer_again (EV_P_ struct ev_timer *w)
831	{	1334	{
832	if (ev_is_active (w))	1335	if (ev_is_active (w))
833	{	1336	{
834	if (w->repeat)	1337	if (w->repeat)
835	{
836	w->at = now + w->repeat;
837	downheap ((WT *)timers, timercnt, w->active - 1);	1338	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
838	}
839	else	1339	else
840	ev_timer_stop (w);	1340	ev_timer_stop (EV_A_ w);
841	}	1341	}
842	else if (w->repeat)	1342	else if (w->repeat)
843	ev_timer_start (w);	1343	ev_timer_start (EV_A_ w);
844	}	1344	}
845		1345
846	void	1346	void
847	ev_periodic_start (struct ev_periodic *w)	1347	ev_periodic_start (EV_P_ struct ev_periodic *w)
848	{	1348	{
849	if (ev_is_active (w))	1349	if (ev_is_active (w))
850	return;	1350	return;
851		1351
		1352	if (w->reschedule_cb)
		1353	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1354	else if (w->interval)
		1355	{
852	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1356	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
853
854	/* this formula differs from the one in periodic_reify because we do not always round up */	1357	/* this formula differs from the one in periodic_reify because we do not always round up */
855	if (w->interval)
856	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1358	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1359	}
857		1360
858	ev_start ((W)w, ++periodiccnt);	1361	ev_start (EV_A_ (W)w, ++periodiccnt);
859	array_needsize (periodics, periodicmax, periodiccnt, );	1362	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
860	periodics [periodiccnt - 1] = w;	1363	periodics [periodiccnt - 1] = w;
861	upheap ((WT *)periodics, periodiccnt - 1);	1364	upheap ((WT *)periodics, periodiccnt - 1);
862	}
863		1365
		1366	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1367	}
		1368
864	void	1369	void
865	ev_periodic_stop (struct ev_periodic *w)	1370	ev_periodic_stop (EV_P_ struct ev_periodic *w)
866	{	1371	{
867	ev_clear_pending ((W)w);	1372	ev_clear_pending (EV_A_ (W)w);
868	if (!ev_is_active (w))	1373	if (!ev_is_active (w))
869	return;	1374	return;
870		1375
		1376	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1377
871	if (w->active < periodiccnt--)	1378	if (((W)w)->active < periodiccnt--)
872	{	1379	{
873	periodics [w->active - 1] = periodics [periodiccnt];	1380	periodics [((W)w)->active - 1] = periodics [periodiccnt];
874	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1381	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
875	}	1382	}
876		1383
877	ev_stop ((W)w);	1384	ev_stop (EV_A_ (W)w);
878	}	1385	}
879		1386
880	void	1387	void
		1388	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1389	{
		1390	/* TODO: use adjustheap and recalculation */
		1391	ev_periodic_stop (EV_A_ w);
		1392	ev_periodic_start (EV_A_ w);
		1393	}
		1394
		1395	void
881	ev_signal_start (struct ev_signal *w)	1396	ev_idle_start (EV_P_ struct ev_idle *w)
882	{	1397	{
883	if (ev_is_active (w))	1398	if (ev_is_active (w))
884	return;	1399	return;
885		1400
		1401	ev_start (EV_A_ (W)w, ++idlecnt);
		1402	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1403	idles [idlecnt - 1] = w;
		1404	}
		1405
		1406	void
		1407	ev_idle_stop (EV_P_ struct ev_idle *w)
		1408	{
		1409	ev_clear_pending (EV_A_ (W)w);
		1410	if (ev_is_active (w))
		1411	return;
		1412
		1413	idles [((W)w)->active - 1] = idles [--idlecnt];
		1414	ev_stop (EV_A_ (W)w);
		1415	}
		1416
		1417	void
		1418	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1419	{
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	ev_start (EV_A_ (W)w, ++preparecnt);
		1424	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1425	prepares [preparecnt - 1] = w;
		1426	}
		1427
		1428	void
		1429	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1430	{
		1431	ev_clear_pending (EV_A_ (W)w);
		1432	if (ev_is_active (w))
		1433	return;
		1434
		1435	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1436	ev_stop (EV_A_ (W)w);
		1437	}
		1438
		1439	void
		1440	ev_check_start (EV_P_ struct ev_check *w)
		1441	{
		1442	if (ev_is_active (w))
		1443	return;
		1444
		1445	ev_start (EV_A_ (W)w, ++checkcnt);
		1446	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1447	checks [checkcnt - 1] = w;
		1448	}
		1449
		1450	void
		1451	ev_check_stop (EV_P_ struct ev_check *w)
		1452	{
		1453	ev_clear_pending (EV_A_ (W)w);
		1454	if (ev_is_active (w))
		1455	return;
		1456
		1457	checks [((W)w)->active - 1] = checks [--checkcnt];
		1458	ev_stop (EV_A_ (W)w);
		1459	}
		1460
		1461	#ifndef SA_RESTART
		1462	# define SA_RESTART 0
		1463	#endif
		1464
		1465	void
		1466	ev_signal_start (EV_P_ struct ev_signal *w)
		1467	{
		1468	#if EV_MULTIPLICITY
		1469	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1470	#endif
		1471	if (ev_is_active (w))
		1472	return;
		1473
886	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1474	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
887		1475
888	ev_start ((W)w, 1);	1476	ev_start (EV_A_ (W)w, 1);
889	array_needsize (signals, signalmax, w->signum, signals_init);	1477	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
890	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1478	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
891		1479
892	if (!w->next)	1480	if (!((WL)w)->next)
893	{	1481	{
		1482	#if WIN32
		1483	signal (w->signum, sighandler);
		1484	#else
894	struct sigaction sa;	1485	struct sigaction sa;
895	sa.sa_handler = sighandler;	1486	sa.sa_handler = sighandler;
896	sigfillset (&sa.sa_mask);	1487	sigfillset (&sa.sa_mask);
897	sa.sa_flags = 0;	1488	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
898	sigaction (w->signum, &sa, 0);	1489	sigaction (w->signum, &sa, 0);
		1490	#endif
899	}	1491	}
900	}	1492	}
901		1493
902	void	1494	void
903	ev_signal_stop (struct ev_signal *w)	1495	ev_signal_stop (EV_P_ struct ev_signal *w)
904	{	1496	{
905	ev_clear_pending ((W)w);	1497	ev_clear_pending (EV_A_ (W)w);
906	if (!ev_is_active (w))	1498	if (!ev_is_active (w))
907	return;	1499	return;
908		1500
909	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1501	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
910	ev_stop ((W)w);	1502	ev_stop (EV_A_ (W)w);
911		1503
912	if (!signals [w->signum - 1].head)	1504	if (!signals [w->signum - 1].head)
913	signal (w->signum, SIG_DFL);	1505	signal (w->signum, SIG_DFL);
914	}	1506	}
915		1507
916	void	1508	void
917	ev_idle_start (struct ev_idle *w)	1509	ev_child_start (EV_P_ struct ev_child *w)
918	{	1510	{
		1511	#if EV_MULTIPLICITY
		1512	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1513	#endif
919	if (ev_is_active (w))	1514	if (ev_is_active (w))
920	return;	1515	return;
921		1516
922	ev_start ((W)w, ++idlecnt);	1517	ev_start (EV_A_ (W)w, 1);
923	array_needsize (idles, idlemax, idlecnt, );	1518	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
924	idles [idlecnt - 1] = w;
925	}	1519	}
926		1520
927	void	1521	void
928	ev_idle_stop (struct ev_idle *w)	1522	ev_child_stop (EV_P_ struct ev_child *w)
929	{	1523	{
930	ev_clear_pending ((W)w);	1524	ev_clear_pending (EV_A_ (W)w);
931	if (ev_is_active (w))	1525	if (ev_is_active (w))
932	return;	1526	return;
933		1527
934	idles [w->active - 1] = idles [--idlecnt];
935	ev_stop ((W)w);
936	}
937
938	void
939	ev_prepare_start (struct ev_prepare *w)
940	{
941	if (ev_is_active (w))
942	return;
943
944	ev_start ((W)w, ++preparecnt);
945	array_needsize (prepares, preparemax, preparecnt, );
946	prepares [preparecnt - 1] = w;
947	}
948
949	void
950	ev_prepare_stop (struct ev_prepare *w)
951	{
952	ev_clear_pending ((W)w);
953	if (ev_is_active (w))
954	return;
955
956	prepares [w->active - 1] = prepares [--preparecnt];
957	ev_stop ((W)w);
958	}
959
960	void
961	ev_check_start (struct ev_check *w)
962	{
963	if (ev_is_active (w))
964	return;
965
966	ev_start ((W)w, ++checkcnt);
967	array_needsize (checks, checkmax, checkcnt, );
968	checks [checkcnt - 1] = w;
969	}
970
971	void
972	ev_check_stop (struct ev_check *w)
973	{
974	ev_clear_pending ((W)w);
975	if (ev_is_active (w))
976	return;
977
978	checks [w->active - 1] = checks [--checkcnt];
979	ev_stop ((W)w);
980	}
981
982	void
983	ev_child_start (struct ev_child *w)
984	{
985	if (ev_is_active (w))
986	return;
987
988	ev_start ((W)w, 1);
989	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
990	}
991
992	void
993	ev_child_stop (struct ev_child *w)
994	{
995	ev_clear_pending ((W)w);
996	if (ev_is_active (w))
997	return;
998
999	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1528	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1000	ev_stop ((W)w);	1529	ev_stop (EV_A_ (W)w);
1001	}	1530	}
1002		1531
1003	/*****************************************************************************/	1532	/*****************************************************************************/
1004		1533
1005	struct ev_once	1534	struct ev_once
…		…
1009	void (cb)(int revents, void arg);	1538	void (cb)(int revents, void arg);
1010	void *arg;	1539	void *arg;
1011	};	1540	};
1012		1541
1013	static void	1542	static void
1014	once_cb (struct ev_once *once, int revents)	1543	once_cb (EV_P_ struct ev_once *once, int revents)
1015	{	1544	{
1016	void (cb)(int revents, void arg) = once->cb;	1545	void (cb)(int revents, void arg) = once->cb;
1017	void *arg = once->arg;	1546	void *arg = once->arg;
1018		1547
1019	ev_io_stop (&once->io);	1548	ev_io_stop (EV_A_ &once->io);
1020	ev_timer_stop (&once->to);	1549	ev_timer_stop (EV_A_ &once->to);
1021	free (once);	1550	ev_free (once);
1022		1551
1023	cb (revents, arg);	1552	cb (revents, arg);
1024	}	1553	}
1025		1554
1026	static void	1555	static void
1027	once_cb_io (struct ev_io *w, int revents)	1556	once_cb_io (EV_P_ struct ev_io *w, int revents)
1028	{	1557	{
1029	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1558	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1030	}	1559	}
1031		1560
1032	static void	1561	static void
1033	once_cb_to (struct ev_timer *w, int revents)	1562	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1034	{	1563	{
1035	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1564	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1036	}	1565	}
1037		1566
1038	void	1567	void
1039	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1568	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1040	{	1569	{
1041	struct ev_once *once = malloc (sizeof (struct ev_once));	1570	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1042		1571
1043	if (!once)	1572	if (!once)
1044	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1573	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1045	else	1574	else
1046	{	1575	{
1047	once->cb = cb;	1576	once->cb = cb;
1048	once->arg = arg;	1577	once->arg = arg;
1049		1578
1050	ev_watcher_init (&once->io, once_cb_io);	1579	ev_init (&once->io, once_cb_io);
1051	if (fd >= 0)	1580	if (fd >= 0)
1052	{	1581	{
1053	ev_io_set (&once->io, fd, events);	1582	ev_io_set (&once->io, fd, events);
1054	ev_io_start (&once->io);	1583	ev_io_start (EV_A_ &once->io);
1055	}	1584	}
1056		1585
1057	ev_watcher_init (&once->to, once_cb_to);	1586	ev_init (&once->to, once_cb_to);
1058	if (timeout >= 0.)	1587	if (timeout >= 0.)
1059	{	1588	{
1060	ev_timer_set (&once->to, timeout, 0.);	1589	ev_timer_set (&once->to, timeout, 0.);
1061	ev_timer_start (&once->to);	1590	ev_timer_start (EV_A_ &once->to);
1062	}	1591	}
1063	}	1592	}
1064	}	1593	}
1065		1594
1066	/*****************************************************************************/
1067
1068	#if 0
1069
1070	struct ev_io wio;
1071
1072	static void
1073	sin_cb (struct ev_io *w, int revents)
1074	{
1075	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1076	}
1077
1078	static void
1079	ocb (struct ev_timer *w, int revents)
1080	{
1081	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1082	ev_timer_stop (w);
1083	ev_timer_start (w);
1084	}
1085
1086	static void
1087	scb (struct ev_signal *w, int revents)
1088	{
1089	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1090	ev_io_stop (&wio);
1091	ev_io_start (&wio);
1092	}
1093
1094	static void
1095	gcb (struct ev_signal *w, int revents)
1096	{
1097	fprintf (stderr, "generic %x\n", revents);
1098
1099	}
1100
1101	int main (void)
1102	{
1103	ev_init (0);
1104
1105	ev_io_init (&wio, sin_cb, 0, EV_READ);
1106	ev_io_start (&wio);
1107
1108	struct ev_timer t[10000];
1109
1110	#if 0
1111	int i;
1112	for (i = 0; i < 10000; ++i)
1113	{
1114	struct ev_timer *w = t + i;
1115	ev_watcher_init (w, ocb, i);
1116	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1117	ev_timer_start (w);
1118	if (drand48 () < 0.5)
1119	ev_timer_stop (w);
1120	}
1121	#endif
1122
1123	struct ev_timer t1;
1124	ev_timer_init (&t1, ocb, 5, 10);
1125	ev_timer_start (&t1);
1126
1127	struct ev_signal sig;
1128	ev_signal_init (&sig, scb, SIGQUIT);
1129	ev_signal_start (&sig);
1130
1131	struct ev_check cw;
1132	ev_check_init (&cw, gcb);
1133	ev_check_start (&cw);
1134
1135	struct ev_idle iw;
1136	ev_idle_init (&iw, gcb);
1137	ev_idle_start (&iw);
1138
1139	ev_loop (0);
1140
1141	return 0;
1142	}
1143
1144	#endif
1145
1146
1147
1148

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Comparing libev/ev.c (file contents): Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC vs. Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC vs.
Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC