[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 1.98 by root, Sun Nov 11 02:05:20 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	76	#include <time.h>
50		77
		78	#include <signal.h>
		79
		80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
		83	# include <sys/wait.h>
		84	#endif
51	/**/	85	/**/
52		86
53	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
55	#endif	89	#endif
56		90
57	#ifndef EV_USE_SELECT	91	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT 1
59	#endif	93	#endif
60		94
		95	#ifndef EV_USE_POLL
		96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		97	#endif
		98
61	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
62	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
		101	#endif
		102
		103	#ifndef EV_USE_KQUEUE
		104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
63	#endif	115	#endif
64		116
65	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
67	#endif	119	#endif
…		…
83	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#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) */	136	#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 */	137	#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 */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
87		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
88	#include "ev.h"	143	# include "ev.h"
		144	#endif
89		145
90	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
91	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
92	# define inline inline	148	# define inline inline
93	#else	149	#else
…		…
96	#endif	152	#endif
97		153
98	#define expect_false(expr) expect ((expr) != 0, 0)	154	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	155	#define expect_true(expr) expect ((expr) != 0, 1)
100		156
		157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		159
101	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
104		163
105	static ev_tstamp now_floor, now, diff; /* monotonic clock */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
		170	/*****************************************************************************/
		171
		172	static void (syserr_cb)(const char msg);
		173
		174	void ev_set_syserr_cb (void (cb)(const char msg))
		175	{
		176	syserr_cb = cb;
		177	}
		178
		179	static void
		180	syserr (const char *msg)
		181	{
		182	if (!msg)
		183	msg = "(libev) system error";
		184
		185	if (syserr_cb)
		186	syserr_cb (msg);
		187	else
		188	{
		189	perror (msg);
		190	abort ();
		191	}
		192	}
		193
		194	static void (alloc)(void *ptr, long size);
		195
		196	void ev_set_allocator (void (cb)(void *ptr, long size))
		197	{
		198	alloc = cb;
		199	}
		200
		201	static void *
		202	ev_realloc (void *ptr, long size)
		203	{
		204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		205
		206	if (!ptr && size)
		207	{
		208	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		209	abort ();
		210	}
		211
		212	return ptr;
		213	}
		214
		215	#define ev_malloc(size) ev_realloc (0, (size))
		216	#define ev_free(ptr) ev_realloc ((ptr), 0)
		217
		218	/*****************************************************************************/
		219
		220	typedef struct
		221	{
		222	WL head;
		223	unsigned char events;
		224	unsigned char reify;
		225	} ANFD;
		226
		227	typedef struct
		228	{
		229	W w;
		230	int events;
		231	} ANPENDING;
		232
		233	#if EV_MULTIPLICITY
		234
		235	struct ev_loop
		236	{
		237	ev_tstamp ev_rt_now;
		238	#define VAR(name,decl) decl;
		239	#include "ev_vars.h"
		240	#undef VAR
		241	};
		242	#include "ev_wrap.h"
		243
		244	struct ev_loop default_loop_struct;
		245	static struct ev_loop *default_loop;
		246
		247	#else
		248
106	ev_tstamp ev_now;	249	ev_tstamp ev_rt_now;
107	int ev_method;	250	#define VAR(name,decl) static decl;
		251	#include "ev_vars.h"
		252	#undef VAR
108		253
109	static int have_monotonic; /* runtime */	254	static int default_loop;
110		255
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	256	#endif
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114		257
115	/*****************************************************************************/	258	/*****************************************************************************/
116		259
117	ev_tstamp	260	ev_tstamp
118	ev_time (void)	261	ev_time (void)
…		…
126	gettimeofday (&tv, 0);	269	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	270	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	271	#endif
129	}	272	}
130		273
131	static ev_tstamp	274	inline ev_tstamp
132	get_clock (void)	275	get_clock (void)
133	{	276	{
134	#if EV_USE_MONOTONIC	277	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	278	if (expect_true (have_monotonic))
136	{	279	{
…		…
141	#endif	284	#endif
142		285
143	return ev_time ();	286	return ev_time ();
144	}	287	}
145		288
		289	#if EV_MULTIPLICITY
		290	ev_tstamp
		291	ev_now (EV_P)
		292	{
		293	return ev_rt_now;
		294	}
		295	#endif
		296
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
147		298
148	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
149	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
150	{ \	301	{ \
151	int newcnt = cur; \	302	int newcnt = cur; \
152	do \	303	do \
153	{ \	304	{ \
154	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
155	} \	306	} \
156	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
157	\	308	\
158	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
159	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
160	cur = newcnt; \	311	cur = newcnt; \
161	}	312	}
		313
		314	#define array_slim(type,stem) \
		315	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		316	{ \
		317	stem ## max = array_roundsize (stem ## cnt >> 1); \
		318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		320	}
		321
		322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		324	#define array_free_microshit(stem) \
		325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		326
		327	#define array_free(stem, idx) \
		328	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
162		329
163	/*****************************************************************************/	330	/*****************************************************************************/
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		331
175	static void	332	static void
176	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
177	{	334	{
178	while (count--)	335	while (count--)
…		…
183		340
184	++base;	341	++base;
185	}	342	}
186	}	343	}
187		344
188	typedef struct	345	void
		346	ev_feed_event (EV_P_ void *w, int revents)
189	{	347	{
190	W w;	348	W w_ = (W)w;
191	int events;
192	} ANPENDING;
193		349
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void
198	event (W w, int events)
199	{
200	if (w->pending)	350	if (w_->pending)
201	{	351	{
202	pendings [w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
203	return;	353	return;
204	}	354	}
205		355
206	w->pending = ++pendingcnt;	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
208	pendings [pendingcnt - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
209	pendings [pendingcnt - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
210	}	360	}
211		361
212	static void	362	static void
213	queue_events (W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	364	{
215	int i;	365	int i;
216		366
217	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
219	}	369	}
220		370
221	static void	371	inline void
222	fd_event (int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
223	{	373	{
224	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	375	struct ev_io *w;
226		376
227	for (w = anfd->head; w; w = w->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	378	{
229	int ev = w->events & events;	379	int ev = w->events & revents;
230		380
231	if (ev)	381	if (ev)
232	event ((W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
233	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
234	}	390	}
235		391
236	/*****************************************************************************/	392	/*****************************************************************************/
237		393
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	394	static void
242	fd_reify (void)	395	fd_reify (EV_P)
243	{	396	{
244	int i;	397	int i;
245		398
246	for (i = 0; i < fdchangecnt; ++i)	399	for (i = 0; i < fdchangecnt; ++i)
247	{	400	{
…		…
249	ANFD *anfd = anfds + fd;	402	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	403	struct ev_io *w;
251		404
252	int events = 0;	405	int events = 0;
253		406
254	for (w = anfd->head; w; w = w->next)	407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	408	events \|= w->events;
256		409
257	anfd->reify = 0;	410	anfd->reify = 0;
258		411
259	if (anfd->events != events)
260	{
261	method_modify (fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	413	anfd->events = events;
263	}
264	}	414	}
265		415
266	fdchangecnt = 0;	416	fdchangecnt = 0;
267	}	417	}
268		418
269	static void	419	static void
270	fd_change (int fd)	420	fd_change (EV_P_ int fd)
271	{	421	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
273	return;	423	return;
274		424
275	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
276		426
277	++fdchangecnt;	427	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
279	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
280	}	430	}
281		431
		432	static void
		433	fd_kill (EV_P_ int fd)
		434	{
		435	struct ev_io *w;
		436
		437	while ((w = (struct ev_io *)anfds [fd].head))
		438	{
		439	ev_io_stop (EV_A_ w);
		440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		441	}
		442	}
		443
		444	static int
		445	fd_valid (int fd)
		446	{
		447	#ifdef WIN32
		448	return !!win32_get_osfhandle (fd);
		449	#else
		450	return fcntl (fd, F_GETFD) != -1;
		451	#endif
		452	}
		453
282	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
283	static void	455	static void
284	fd_recheck (void)	456	fd_ebadf (EV_P)
285	{	457	{
286	int fd;	458	int fd;
287		459
288	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	461	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
291	while (anfds [fd].head)	463	fd_kill (EV_A_ fd);
		464	}
		465
		466	/* called on ENOMEM in select/poll to kill some fds and retry */
		467	static void
		468	fd_enomem (EV_P)
		469	{
		470	int fd;
		471
		472	for (fd = anfdmax; fd--; )
		473	if (anfds [fd].events)
292	{	474	{
293	ev_io_stop (anfds [fd].head);	475	fd_kill (EV_A_ fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	476	return;
295	}	477	}
		478	}
		479
		480	/* usually called after fork if method needs to re-arm all fds from scratch */
		481	static void
		482	fd_rearm_all (EV_P)
		483	{
		484	int fd;
		485
		486	/* this should be highly optimised to not do anything but set a flag */
		487	for (fd = 0; fd < anfdmax; ++fd)
		488	if (anfds [fd].events)
		489	{
		490	anfds [fd].events = 0;
		491	fd_change (EV_A_ fd);
		492	}
296	}	493	}
297		494
298	/*****************************************************************************/	495	/*****************************************************************************/
299		496
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	497	static void
307	upheap (WT *timers, int k)	498	upheap (WT *heap, int k)
308	{	499	{
309	WT w = timers [k];	500	WT w = heap [k];
310		501
311	while (k && timers [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
312	{	503	{
313	timers [k] = timers [k >> 1];	504	heap [k] = heap [k >> 1];
314	timers [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
315	k >>= 1;	506	k >>= 1;
316	}	507	}
317		508
318	timers [k] = w;	509	heap [k] = w;
319	timers [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
320		511
321	}	512	}
322		513
323	static void	514	static void
324	downheap (WT *timers, int N, int k)	515	downheap (WT *heap, int N, int k)
325	{	516	{
326	WT w = timers [k];	517	WT w = heap [k];
327		518
328	while (k < (N >> 1))	519	while (k < (N >> 1))
329	{	520	{
330	int j = k << 1;	521	int j = k << 1;
331		522
332	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	523	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
333	++j;	524	++j;
334		525
335	if (w->at <= timers [j]->at)	526	if (w->at <= heap [j]->at)
336	break;	527	break;
337		528
338	timers [k] = timers [j];	529	heap [k] = heap [j];
339	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
340	k = j;	531	k = j;
341	}	532	}
342		533
343	timers [k] = w;	534	heap [k] = w;
344	timers [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
		536	}
		537
		538	inline void
		539	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		540	{
		541	ev_tstamp old_at = heap [k]->at;
		542	heap [k]->at = at;
		543
		544	if (old_at < at)
		545	downheap (heap, N, k);
		546	else
		547	upheap (heap, k);
345	}	548	}
346		549
347	/*****************************************************************************/	550	/*****************************************************************************/
348		551
349	typedef struct	552	typedef struct
350	{	553	{
351	struct ev_signal *head;	554	WL head;
352	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
353	} ANSIG;	556	} ANSIG;
354		557
355	static ANSIG *signals;	558	static ANSIG *signals;
356	static int signalmax;	559	static int signalmax;
…		…
372	}	575	}
373		576
374	static void	577	static void
375	sighandler (int signum)	578	sighandler (int signum)
376	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
377	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
378		585
379	if (!gotsig)	586	if (!gotsig)
380	{	587	{
		588	int old_errno = errno;
381	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
382	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
		595	errno = old_errno;
383	}	596	}
384	}	597	}
385		598
		599	void
		600	ev_feed_signal_event (EV_P_ int signum)
		601	{
		602	WL w;
		603
		604	#if EV_MULTIPLICITY
		605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		606	#endif
		607
		608	--signum;
		609
		610	if (signum < 0 \|\| signum >= signalmax)
		611	return;
		612
		613	signals [signum].gotsig = 0;
		614
		615	for (w = signals [signum].head; w; w = w->next)
		616	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		617	}
		618
386	static void	619	static void
387	sigcb (struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	621	{
389	struct ev_signal *w;
390	int signum;	622	int signum;
391		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
392	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
393	gotsig = 0;	629	gotsig = 0;
394		630
395	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
396	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
397	{	633	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	}	634	}
404		635
405	static void	636	static void
406	siginit (void)	637	siginit (EV_P)
407	{	638	{
		639	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		642
411	/* rather than sort out wether we really need nb, set it */	643	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		646	#endif
414		647
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	648	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	649	ev_io_start (EV_A_ &sigev);
		650	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	651	}
418		652
419	/*****************************************************************************/	653	/*****************************************************************************/
420		654
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];	655	static struct ev_child *childs [PID_HASHSIZE];
		656
		657	#ifndef WIN32
		658
433	static struct ev_signal childev;	659	static struct ev_signal childev;
434		660
435	#ifndef WCONTINUED	661	#ifndef WCONTINUED
436	# define WCONTINUED 0	662	# define WCONTINUED 0
437	#endif	663	#endif
438		664
439	static void	665	static void
440	childcb (struct ev_signal *sw, int revents)	666	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	667	{
442	struct ev_child *w;	668	struct ev_child *w;
		669
		670	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		671	if (w->pid == pid \|\| !w->pid)
		672	{
		673	ev_priority (w) = ev_priority (sw); /* need to do it now */
		674	w->rpid = pid;
		675	w->rstatus = status;
		676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		677	}
		678	}
		679
		680	static void
		681	childcb (EV_P_ struct ev_signal *sw, int revents)
		682	{
443	int pid, status;	683	int pid, status;
444		684
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	686	{
447	if (w->pid == pid \|\| !w->pid)	687	/* make sure we are called again until all childs have been reaped */
448	{	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	689
450	event ((W)w, EV_CHILD);	690	child_reap (EV_A_ sw, pid, pid, status);
451	}	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		692	}
452	}	693	}
		694
		695	#endif
453		696
454	/*****************************************************************************/	697	/*****************************************************************************/
455		698
		699	#if EV_USE_KQUEUE
		700	# include "ev_kqueue.c"
		701	#endif
456	#if EV_USE_EPOLL	702	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	703	# include "ev_epoll.c"
458	#endif	704	#endif
		705	#if EV_USE_POLL
		706	# include "ev_poll.c"
		707	#endif
459	#if EV_USE_SELECT	708	#if EV_USE_SELECT
460	# include "ev_select.c"	709	# include "ev_select.c"
461	#endif	710	#endif
462		711
463	int	712	int
…		…
470	ev_version_minor (void)	719	ev_version_minor (void)
471	{	720	{
472	return EV_VERSION_MINOR;	721	return EV_VERSION_MINOR;
473	}	722	}
474		723
475	int ev_init (int flags)	724	/* return true if we are running with elevated privileges and should ignore env variables */
		725	static int
		726	enable_secure (void)
476	{	727	{
		728	#ifdef WIN32
		729	return 0;
		730	#else
		731	return getuid () != geteuid ()
		732	\|\| getgid () != getegid ();
		733	#endif
		734	}
		735
		736	int
		737	ev_method (EV_P)
		738	{
		739	return method;
		740	}
		741
		742	static void
		743	loop_init (EV_P_ int methods)
		744	{
477	if (!ev_method)	745	if (!method)
478	{	746	{
479	#if EV_USE_MONOTONIC	747	#if EV_USE_MONOTONIC
480	{	748	{
481	struct timespec ts;	749	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	751	have_monotonic = 1;
484	}	752	}
485	#endif	753	#endif
486		754
487	ev_now = ev_time ();	755	ev_rt_now = ev_time ();
488	now = get_clock ();	756	mn_now = get_clock ();
489	now_floor = now;	757	now_floor = mn_now;
490	diff = ev_now - now;	758	rtmn_diff = ev_rt_now - mn_now;
491		759
492	if (pipe (sigpipe))	760	if (methods == EVMETHOD_AUTO)
493	return 0;	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
494		762	methods = atoi (getenv ("LIBEV_METHODS"));
		763	else
495	ev_method = EVMETHOD_NONE;	764	methods = EVMETHOD_ANY;
		765
		766	method = 0;
		767	#if EV_USE_WIN32
		768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		769	#endif
		770	#if EV_USE_KQUEUE
		771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		772	#endif
496	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		775	#endif
		776	#if EV_USE_POLL
		777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	778	#endif
499	#if EV_USE_SELECT	779	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	781	#endif
502		782
		783	ev_init (&sigev, sigcb);
		784	ev_set_priority (&sigev, EV_MAXPRI);
		785	}
		786	}
		787
		788	void
		789	loop_destroy (EV_P)
		790	{
		791	int i;
		792
		793	#if EV_USE_WIN32
		794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		795	#endif
		796	#if EV_USE_KQUEUE
		797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		798	#endif
		799	#if EV_USE_EPOLL
		800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		801	#endif
		802	#if EV_USE_POLL
		803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		804	#endif
		805	#if EV_USE_SELECT
		806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		807	#endif
		808
		809	for (i = NUMPRI; i--; )
		810	array_free (pending, [i]);
		811
		812	/* have to use the microsoft-never-gets-it-right macro */
		813	array_free_microshit (fdchange);
		814	array_free_microshit (timer);
		815	#if EV_PERIODICS
		816	array_free_microshit (periodic);
		817	#endif
		818	array_free_microshit (idle);
		819	array_free_microshit (prepare);
		820	array_free_microshit (check);
		821
		822	method = 0;
		823	}
		824
		825	static void
		826	loop_fork (EV_P)
		827	{
		828	#if EV_USE_EPOLL
		829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		830	#endif
		831	#if EV_USE_KQUEUE
		832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		833	#endif
		834
		835	if (ev_is_active (&sigev))
		836	{
		837	/* default loop */
		838
		839	ev_ref (EV_A);
		840	ev_io_stop (EV_A_ &sigev);
		841	close (sigpipe [0]);
		842	close (sigpipe [1]);
		843
		844	while (pipe (sigpipe))
		845	syserr ("(libev) error creating pipe");
		846
		847	siginit (EV_A);
		848	}
		849
		850	postfork = 0;
		851	}
		852
		853	#if EV_MULTIPLICITY
		854	struct ev_loop *
		855	ev_loop_new (int methods)
		856	{
		857	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		858
		859	memset (loop, 0, sizeof (struct ev_loop));
		860
		861	loop_init (EV_A_ methods);
		862
		863	if (ev_method (EV_A))
		864	return loop;
		865
		866	return 0;
		867	}
		868
		869	void
		870	ev_loop_destroy (EV_P)
		871	{
		872	loop_destroy (EV_A);
		873	ev_free (loop);
		874	}
		875
		876	void
		877	ev_loop_fork (EV_P)
		878	{
		879	postfork = 1;
		880	}
		881
		882	#endif
		883
		884	#if EV_MULTIPLICITY
		885	struct ev_loop *
		886	#else
		887	int
		888	#endif
		889	ev_default_loop (int methods)
		890	{
		891	if (sigpipe [0] == sigpipe [1])
		892	if (pipe (sigpipe))
		893	return 0;
		894
		895	if (!default_loop)
		896	{
		897	#if EV_MULTIPLICITY
		898	struct ev_loop *loop = default_loop = &default_loop_struct;
		899	#else
		900	default_loop = 1;
		901	#endif
		902
		903	loop_init (EV_A_ methods);
		904
503	if (ev_method)	905	if (ev_method (EV_A))
504	{	906	{
505	ev_watcher_init (&sigev, sigcb);
506	siginit ();	907	siginit (EV_A);
507		908
		909	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
		911	ev_set_priority (&childev, EV_MAXPRI);
509	ev_signal_start (&childev);	912	ev_signal_start (EV_A_ &childev);
		913	ev_unref (EV_A); /* child watcher should not keep loop alive */
		914	#endif
510	}	915	}
		916	else
		917	default_loop = 0;
511	}	918	}
512		919
513	return ev_method;	920	return default_loop;
		921	}
		922
		923	void
		924	ev_default_destroy (void)
		925	{
		926	#if EV_MULTIPLICITY
		927	struct ev_loop *loop = default_loop;
		928	#endif
		929
		930	#ifndef WIN32
		931	ev_ref (EV_A); /* child watcher */
		932	ev_signal_stop (EV_A_ &childev);
		933	#endif
		934
		935	ev_ref (EV_A); /* signal watcher */
		936	ev_io_stop (EV_A_ &sigev);
		937
		938	close (sigpipe [0]); sigpipe [0] = 0;
		939	close (sigpipe [1]); sigpipe [1] = 0;
		940
		941	loop_destroy (EV_A);
		942	}
		943
		944	void
		945	ev_default_fork (void)
		946	{
		947	#if EV_MULTIPLICITY
		948	struct ev_loop *loop = default_loop;
		949	#endif
		950
		951	if (method)
		952	postfork = 1;
514	}	953	}
515		954
516	/*****************************************************************************/	955	/*****************************************************************************/
517		956
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	957	static int
		958	any_pending (EV_P)
		959	{
		960	int pri;
		961
		962	for (pri = NUMPRI; pri--; )
		963	if (pendingcnt [pri])
		964	return 1;
		965
		966	return 0;
		967	}
		968
		969	static void
548	call_pending (void)	970	call_pending (EV_P)
549	{	971	{
		972	int pri;
		973
		974	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	975	while (pendingcnt [pri])
551	{	976	{
552	ANPENDING *p = pendings + --pendingcnt;	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		978
554	if (p->w)	979	if (p->w)
555	{	980	{
556	p->w->pending = 0;	981	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
558	}	983	}
559	}	984	}
560	}	985	}
561		986
562	static void	987	static void
563	timers_reify (void)	988	timers_reify (EV_P)
564	{	989	{
565	while (timercnt && timers [0]->at <= now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
566	{	991	{
567	struct ev_timer *w = timers [0];	992	struct ev_timer *w = timers [0];
		993
		994	assert (("inactive timer on timer heap detected", ev_is_active (w)));
568		995
569	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
570	if (w->repeat)	997	if (w->repeat)
571	{	998	{
572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	999	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1000
573	w->at = now + w->repeat;	1001	((WT)w)->at += w->repeat;
		1002	if (((WT)w)->at < mn_now)
		1003	((WT)w)->at = mn_now;
		1004
574	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
575	}	1006	}
576	else	1007	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		1009
579	event ((W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
580	}	1011	}
581	}	1012	}
582		1013
		1014	#if EV_PERIODICS
583	static void	1015	static void
584	periodics_reify (void)	1016	periodics_reify (EV_P)
585	{	1017	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
587	{	1019	{
588	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
589		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
590	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
591	if (w->interval)	1025	if (w->reschedule_cb)
592	{	1026	{
		1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1028
		1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1030	downheap ((WT *)periodics, periodiccnt, 0);
		1031	}
		1032	else if (w->interval)
		1033	{
593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1034	((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));	1035	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);	1036	downheap ((WT *)periodics, periodiccnt, 0);
596	}	1037	}
597	else	1038	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		1040
600	event ((W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
601	}	1042	}
602	}	1043	}
603		1044
604	static void	1045	static void
605	periodics_reschedule (ev_tstamp diff)	1046	periodics_reschedule (EV_P)
606	{	1047	{
607	int i;	1048	int i;
608		1049
609	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
611	{	1052	{
612	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
613		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
614	if (w->interval)	1057	else if (w->interval)
615	{
616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1058	((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	}	1059	}
627	}
628		1060
629	static int	1061	/* now rebuild the heap */
		1062	for (i = periodiccnt >> 1; i--; )
		1063	downheap ((WT *)periodics, periodiccnt, i);
		1064	}
		1065	#endif
		1066
		1067	inline int
630	time_update_monotonic (void)	1068	time_update_monotonic (EV_P)
631	{	1069	{
632	now = get_clock ();	1070	mn_now = get_clock ();
633		1071
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	1073	{
636	ev_now = now + diff;	1074	ev_rt_now = rtmn_diff + mn_now;
637	return 0;	1075	return 0;
638	}	1076	}
639	else	1077	else
640	{	1078	{
641	now_floor = now;	1079	now_floor = mn_now;
642	ev_now = ev_time ();	1080	ev_rt_now = ev_time ();
643	return 1;	1081	return 1;
644	}	1082	}
645	}	1083	}
646		1084
647	static void	1085	static void
648	time_update (void)	1086	time_update (EV_P)
649	{	1087	{
650	int i;	1088	int i;
651		1089
652	#if EV_USE_MONOTONIC	1090	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	1091	if (expect_true (have_monotonic))
654	{	1092	{
655	if (time_update_monotonic ())	1093	if (time_update_monotonic (EV_A))
656	{	1094	{
657	ev_tstamp odiff = diff;	1095	ev_tstamp odiff = rtmn_diff;
658		1096
659	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1097	for (i = 4; --i; ) /* loop a few times, before making important decisions */
660	{	1098	{
661	diff = ev_now - now;	1099	rtmn_diff = ev_rt_now - mn_now;
662		1100
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
664	return; /* all is well */	1102	return; /* all is well */
665		1103
666	ev_now = ev_time ();	1104	ev_rt_now = ev_time ();
667	now = get_clock ();	1105	mn_now = get_clock ();
668	now_floor = now;	1106	now_floor = mn_now;
669	}	1107	}
670		1108
		1109	# if EV_PERIODICS
671	periodics_reschedule (diff - odiff);	1110	periodics_reschedule (EV_A);
		1111	# endif
672	/* no timer adjustment, as the monotonic clock doesn't jump */	1112	/* no timer adjustment, as the monotonic clock doesn't jump */
		1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
673	}	1114	}
674	}	1115	}
675	else	1116	else
676	#endif	1117	#endif
677	{	1118	{
678	ev_now = ev_time ();	1119	ev_rt_now = ev_time ();
679		1120
680	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1121	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
681	{	1122	{
		1123	#if EV_PERIODICS
682	periodics_reschedule (ev_now - now);	1124	periodics_reschedule (EV_A);
		1125	#endif
683		1126
684	/* adjust timers. this is easy, as the offset is the same for all */	1127	/* adjust timers. this is easy, as the offset is the same for all */
685	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
687	}	1130	}
688		1131
689	now = ev_now;	1132	mn_now = ev_rt_now;
690	}	1133	}
691	}	1134	}
692		1135
693	int ev_loop_done;	1136	void
		1137	ev_ref (EV_P)
		1138	{
		1139	++activecnt;
		1140	}
694		1141
		1142	void
		1143	ev_unref (EV_P)
		1144	{
		1145	--activecnt;
		1146	}
		1147
		1148	static int loop_done;
		1149
		1150	void
695	void ev_loop (int flags)	1151	ev_loop (EV_P_ int flags)
696	{	1152	{
697	double block;	1153	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		1155
700	do	1156	do
701	{	1157	{
702	/* queue check watchers (and execute them) */	1158	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	1159	if (expect_false (preparecnt))
704	{	1160	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	1162	call_pending (EV_A);
707	}	1163	}
708		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
709	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
710	fd_reify ();	1170	fd_reify (EV_A);
711		1171
712	/* calculate blocking time */	1172	/* calculate blocking time */
713		1173
714	/* we only need this for !monotonic clockor timers, but as we basically	1174	/* we only need this for !monotonic clock or timers, but as we basically
715	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
718	time_update_monotonic ();	1178	time_update_monotonic (EV_A);
719	else	1179	else
720	#endif	1180	#endif
721	{	1181	{
722	ev_now = ev_time ();	1182	ev_rt_now = ev_time ();
723	now = ev_now;	1183	mn_now = ev_rt_now;
724	}	1184	}
725		1185
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	1187	block = 0.;
728	else	1188	else
729	{	1189	{
730	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
731		1191
732	if (timercnt)	1192	if (timercnt)
733	{	1193	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
735	if (block > to) block = to;	1195	if (block > to) block = to;
736	}	1196	}
737		1197
		1198	#if EV_PERIODICS
738	if (periodiccnt)	1199	if (periodiccnt)
739	{	1200	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
741	if (block > to) block = to;	1202	if (block > to) block = to;
742	}	1203	}
		1204	#endif
743		1205
744	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
745	}	1207	}
746		1208
747	method_poll (block);	1209	method_poll (EV_A_ block);
748		1210
749	/* update ev_now, do magic */	1211	/* update ev_rt_now, do magic */
750	time_update ();	1212	time_update (EV_A);
751		1213
752	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
754	periodics_reify (); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
755		1219
756	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		1223
760	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
761	if (checkcnt)	1225	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		1227
764	call_pending ();	1228	call_pending (EV_A);
765	}	1229	}
766	while (!ev_loop_done);	1230	while (activecnt && !loop_done);
767		1231
768	if (ev_loop_done != 2)	1232	if (loop_done != 2)
769	ev_loop_done = 0;	1233	loop_done = 0;
		1234	}
		1235
		1236	void
		1237	ev_unloop (EV_P_ int how)
		1238	{
		1239	loop_done = how;
770	}	1240	}
771		1241
772	/*****************************************************************************/	1242	/*****************************************************************************/
773		1243
774	static void	1244	inline void
775	wlist_add (WL *head, WL elem)	1245	wlist_add (WL *head, WL elem)
776	{	1246	{
777	elem->next = *head;	1247	elem->next = *head;
778	*head = elem;	1248	*head = elem;
779	}	1249	}
780		1250
781	static void	1251	inline void
782	wlist_del (WL *head, WL elem)	1252	wlist_del (WL *head, WL elem)
783	{	1253	{
784	while (*head)	1254	while (*head)
785	{	1255	{
786	if (*head == elem)	1256	if (*head == elem)
…		…
791		1261
792	head = &(*head)->next;	1262	head = &(*head)->next;
793	}	1263	}
794	}	1264	}
795		1265
796	static void	1266	inline void
797	ev_clear_pending (W w)	1267	ev_clear_pending (EV_P_ W w)
798	{	1268	{
799	if (w->pending)	1269	if (w->pending)
800	{	1270	{
801	pendings [w->pending - 1].w = 0;	1271	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	1272	w->pending = 0;
803	}	1273	}
804	}	1274	}
805		1275
806	static void	1276	inline void
807	ev_start (W w, int active)	1277	ev_start (EV_P_ W w, int active)
808	{	1278	{
		1279	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1280	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1281
809	w->active = active;	1282	w->active = active;
		1283	ev_ref (EV_A);
810	}	1284	}
811		1285
812	static void	1286	inline void
813	ev_stop (W w)	1287	ev_stop (EV_P_ W w)
814	{	1288	{
		1289	ev_unref (EV_A);
815	w->active = 0;	1290	w->active = 0;
816	}	1291	}
817		1292
818	/*****************************************************************************/	1293	/*****************************************************************************/
819		1294
820	void	1295	void
821	ev_io_start (struct ev_io *w)	1296	ev_io_start (EV_P_ struct ev_io *w)
822	{	1297	{
823	int fd = w->fd;	1298	int fd = w->fd;
824		1299
825	if (ev_is_active (w))	1300	if (ev_is_active (w))
826	return;	1301	return;
827		1302
828	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
829		1304
830	ev_start ((W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		1308
834	fd_change (fd);	1309	fd_change (EV_A_ fd);
835	}	1310	}
836		1311
837	void	1312	void
838	ev_io_stop (struct ev_io *w)	1313	ev_io_stop (EV_P_ struct ev_io *w)
839	{	1314	{
840	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
842	return;	1317	return;
843		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	1322	ev_stop (EV_A_ (W)w);
846		1323
847	fd_change (w->fd);	1324	fd_change (EV_A_ w->fd);
848	}	1325	}
849		1326
850	void	1327	void
851	ev_timer_start (struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1329	{
853	if (ev_is_active (w))	1330	if (ev_is_active (w))
854	return;	1331	return;
855		1332
856	w->at += now;	1333	((WT)w)->at += mn_now;
857		1334
858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
859		1336
860	ev_start ((W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
862	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
864	}
865		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1343	}
		1344
866	void	1345	void
867	ev_timer_stop (struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1347	{
869	ev_clear_pending ((W)w);	1348	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
871	return;	1350	return;
872		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
873	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
874	{	1355	{
875	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
876	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
877	}	1358	}
878		1359
879	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
880		1361
881	ev_stop ((W)w);	1362	ev_stop (EV_A_ (W)w);
882	}	1363	}
883		1364
884	void	1365	void
885	ev_timer_again (struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1367	{
887	if (ev_is_active (w))	1368	if (ev_is_active (w))
888	{	1369	{
889	if (w->repeat)	1370	if (w->repeat)
890	{
891	w->at = now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
893	}
894	else	1372	else
895	ev_timer_stop (w);	1373	ev_timer_stop (EV_A_ w);
896	}	1374	}
897	else if (w->repeat)	1375	else if (w->repeat)
898	ev_timer_start (w);	1376	ev_timer_start (EV_A_ w);
899	}	1377	}
900		1378
		1379	#if EV_PERIODICS
901	void	1380	void
902	ev_periodic_start (struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1382	{
904	if (ev_is_active (w))	1383	if (ev_is_active (w))
905	return;	1384	return;
906		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1390	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 */	1391	/* 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;	1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1393	}
912		1394
913	ev_start ((W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
915	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
917	}
918		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1401	}
		1402
919	void	1403	void
920	ev_periodic_stop (struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1405	{
922	ev_clear_pending ((W)w);	1406	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
924	return;	1408	return;
925		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
926	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
927	{	1413	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
930	}	1416	}
931		1417
932	ev_stop ((W)w);	1418	ev_stop (EV_A_ (W)w);
933	}	1419	}
934		1420
935	void	1421	void
		1422	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1423	{
		1424	/* TODO: use adjustheap and recalculation */
		1425	ev_periodic_stop (EV_A_ w);
		1426	ev_periodic_start (EV_A_ w);
		1427	}
		1428	#endif
		1429
		1430	void
936	ev_signal_start (struct ev_signal *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
937	{	1432	{
938	if (ev_is_active (w))	1433	if (ev_is_active (w))
939	return;	1434	return;
940		1435
		1436	ev_start (EV_A_ (W)w, ++idlecnt);
		1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1438	idles [idlecnt - 1] = w;
		1439	}
		1440
		1441	void
		1442	ev_idle_stop (EV_P_ struct ev_idle *w)
		1443	{
		1444	ev_clear_pending (EV_A_ (W)w);
		1445	if (ev_is_active (w))
		1446	return;
		1447
		1448	idles [((W)w)->active - 1] = idles [--idlecnt];
		1449	ev_stop (EV_A_ (W)w);
		1450	}
		1451
		1452	void
		1453	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1454	{
		1455	if (ev_is_active (w))
		1456	return;
		1457
		1458	ev_start (EV_A_ (W)w, ++preparecnt);
		1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1460	prepares [preparecnt - 1] = w;
		1461	}
		1462
		1463	void
		1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1465	{
		1466	ev_clear_pending (EV_A_ (W)w);
		1467	if (ev_is_active (w))
		1468	return;
		1469
		1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1471	ev_stop (EV_A_ (W)w);
		1472	}
		1473
		1474	void
		1475	ev_check_start (EV_P_ struct ev_check *w)
		1476	{
		1477	if (ev_is_active (w))
		1478	return;
		1479
		1480	ev_start (EV_A_ (W)w, ++checkcnt);
		1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1482	checks [checkcnt - 1] = w;
		1483	}
		1484
		1485	void
		1486	ev_check_stop (EV_P_ struct ev_check *w)
		1487	{
		1488	ev_clear_pending (EV_A_ (W)w);
		1489	if (!ev_is_active (w))
		1490	return;
		1491
		1492	checks [((W)w)->active - 1] = checks [--checkcnt];
		1493	ev_stop (EV_A_ (W)w);
		1494	}
		1495
		1496	#ifndef SA_RESTART
		1497	# define SA_RESTART 0
		1498	#endif
		1499
		1500	void
		1501	ev_signal_start (EV_P_ struct ev_signal *w)
		1502	{
		1503	#if EV_MULTIPLICITY
		1504	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1505	#endif
		1506	if (ev_is_active (w))
		1507	return;
		1508
941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
942		1510
943	ev_start ((W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1514
947	if (!w->next)	1515	if (!((WL)w)->next)
948	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
949	struct sigaction sa;	1520	struct sigaction sa;
950	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
954	}	1526	}
955	}	1527	}
956		1528
957	void	1529	void
958	ev_signal_stop (struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1531	{
960	ev_clear_pending ((W)w);	1532	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1533	if (!ev_is_active (w))
962	return;	1534	return;
963		1535
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1537	ev_stop (EV_A_ (W)w);
966		1538
967	if (!signals [w->signum - 1].head)	1539	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1540	signal (w->signum, SIG_DFL);
969	}	1541	}
970		1542
971	void	1543	void
972	ev_idle_start (struct ev_idle *w)	1544	ev_child_start (EV_P_ struct ev_child *w)
973	{	1545	{
		1546	#if EV_MULTIPLICITY
		1547	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1548	#endif
974	if (ev_is_active (w))	1549	if (ev_is_active (w))
975	return;	1550	return;
976		1551
977	ev_start ((W)w, ++idlecnt);
978	array_needsize (idles, idlemax, idlecnt, );
979	idles [idlecnt - 1] = w;
980	}
981
982	void
983	ev_idle_stop (struct ev_idle *w)
984	{
985	ev_clear_pending ((W)w);
986	if (ev_is_active (w))
987	return;
988
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);	1552	ev_start (EV_A_ (W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}	1554	}
1046		1555
1047	void	1556	void
1048	ev_child_stop (struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1049	{	1558	{
1050	ev_clear_pending ((W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1051	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1052	return;	1561	return;
1053		1562
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1564	ev_stop (EV_A_ (W)w);
1056	}	1565	}
1057		1566
1058	/*****************************************************************************/	1567	/*****************************************************************************/
1059		1568
1060	struct ev_once	1569	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1573	void (cb)(int revents, void arg);
1065	void *arg;	1574	void *arg;
1066	};	1575	};
1067		1576
1068	static void	1577	static void
1069	once_cb (struct ev_once *once, int revents)	1578	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1579	{
1071	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1581	void *arg = once->arg;
1073		1582
1074	ev_io_stop (&once->io);	1583	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1585	ev_free (once);
1077		1586
1078	cb (revents, arg);	1587	cb (revents, arg);
1079	}	1588	}
1080		1589
1081	static void	1590	static void
1082	once_cb_io (struct ev_io *w, int revents)	1591	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1592	{
1084	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1593	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1085	}	1594	}
1086		1595
1087	static void	1596	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1597	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1598	{
1090	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1599	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1091	}	1600	}
1092		1601
1093	void	1602	void
1094	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1095	{	1604	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1097		1606
1098	if (!once)	1607	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1100	else	1609	else
1101	{	1610	{
1102	once->cb = cb;	1611	once->cb = cb;
1103	once->arg = arg;	1612	once->arg = arg;
1104		1613
1105	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1615	if (fd >= 0)
1107	{	1616	{
1108	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1618	ev_io_start (EV_A_ &once->io);
1110	}	1619	}
1111		1620
1112	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1622	if (timeout >= 0.)
1114	{	1623	{
1115	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1625	ev_timer_start (EV_A_ &once->to);
1117	}	1626	}
1118	}	1627	}
1119	}	1628	}
1120		1629
1121	/*****************************************************************************/	1630	#ifdef __cplusplus
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	}	1631	}
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	1632	#endif
1177		1633
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 1.98 by root, Sun Nov 11 02:05:20 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 1.98 by root, Sun Nov 11 02:05:20 2007 UTC