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

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.101 by root, Sun Nov 11 04:04:23 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
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	97	#endif
64		98
65	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
66	# 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
67	#endif	115	#endif
68		116
69	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
71	#endif	119	#endif
…		…
87	#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) */
88	#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) */
89	#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 */
90	/#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 */
91		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
92	#include "ev.h"	143	# include "ev.h"
		144	#endif
93		145
94	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	148	# define inline inline
97	#else	149	#else
…		…
100	#endif	152	#endif
101		153
102	#define expect_false(expr) expect ((expr) != 0, 0)	154	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	155	#define expect_true(expr) expect ((expr) != 0, 1)
104		156
		157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		159
105	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
108		163
109	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 ev_rt_now ((loop)->ev_rt_now)
		239	#define VAR(name,decl) decl;
		240	#include "ev_vars.h"
		241	#undef VAR
		242	};
		243	#include "ev_wrap.h"
		244
		245	struct ev_loop default_loop_struct;
		246	static struct ev_loop *default_loop;
		247
		248	#else
		249
110	ev_tstamp ev_now;	250	ev_tstamp ev_rt_now;
111	int ev_method;	251	#define VAR(name,decl) static decl;
		252	#include "ev_vars.h"
		253	#undef VAR
112		254
113	static int have_monotonic; /* runtime */	255	static int default_loop;
114		256
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	257	#endif
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118		258
119	/*****************************************************************************/	259	/*****************************************************************************/
120		260
121	ev_tstamp	261	ev_tstamp
122	ev_time (void)	262	ev_time (void)
…		…
130	gettimeofday (&tv, 0);	270	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	271	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	272	#endif
133	}	273	}
134		274
135	static ev_tstamp	275	inline ev_tstamp
136	get_clock (void)	276	get_clock (void)
137	{	277	{
138	#if EV_USE_MONOTONIC	278	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	279	if (expect_true (have_monotonic))
140	{	280	{
…		…
145	#endif	285	#endif
146		286
147	return ev_time ();	287	return ev_time ();
148	}	288	}
149		289
		290	#if EV_MULTIPLICITY
		291	ev_tstamp
		292	ev_now (EV_P)
		293	{
		294	return ev_rt_now;
		295	}
		296	#endif
		297
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	298	#define array_roundsize(type,n) ((n) \| 4 & ~3)
151		299
152	#define array_needsize(base,cur,cnt,init) \	300	#define array_needsize(type,base,cur,cnt,init) \
153	if (expect_false ((cnt) > cur)) \	301	if (expect_false ((cnt) > cur)) \
154	{ \	302	{ \
155	int newcnt = cur; \	303	int newcnt = cur; \
156	do \	304	do \
157	{ \	305	{ \
158	newcnt = array_roundsize (base, newcnt << 1); \	306	newcnt = array_roundsize (type, newcnt << 1); \
159	} \	307	} \
160	while ((cnt) > newcnt); \	308	while ((cnt) > newcnt); \
161	\	309	\
162	base = realloc (base, sizeof (base) (newcnt)); \	310	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
163	init (base + cur, newcnt - cur); \	311	init (base + cur, newcnt - cur); \
164	cur = newcnt; \	312	cur = newcnt; \
165	}	313	}
		314
		315	#define array_slim(type,stem) \
		316	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		317	{ \
		318	stem ## max = array_roundsize (stem ## cnt >> 1); \
		319	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		320	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		321	}
		322
		323	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		324	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		325	#define array_free_microshit(stem) \
		326	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		327
		328	#define array_free(stem, idx) \
		329	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
166		330
167	/*****************************************************************************/	331	/*****************************************************************************/
168
169	typedef struct
170	{
171	struct ev_io *head;
172	unsigned char events;
173	unsigned char reify;
174	} ANFD;
175
176	static ANFD *anfds;
177	static int anfdmax;
178		332
179	static void	333	static void
180	anfds_init (ANFD *base, int count)	334	anfds_init (ANFD *base, int count)
181	{	335	{
182	while (count--)	336	while (count--)
…		…
187		341
188	++base;	342	++base;
189	}	343	}
190	}	344	}
191		345
192	typedef struct	346	void
		347	ev_feed_event (EV_P_ void *w, int revents)
193	{	348	{
194	W w;	349	W w_ = (W)w;
195	int events;
196	} ANPENDING;
197		350
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void
202	event (W w, int events)
203	{
204	if (w->pending)	351	if (w_->pending)
205	{	352	{
206	pendings [w->pending - 1].events \|= events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
207	return;	354	return;
208	}	355	}
209		356
210	w->pending = ++pendingcnt;	357	w_->pending = ++pendingcnt [ABSPRI (w_)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	358	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
212	pendings [pendingcnt - 1].w = w;	359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
213	pendings [pendingcnt - 1].events = events;	360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
214	}	361	}
215		362
216	static void	363	static void
217	queue_events (W *events, int eventcnt, int type)	364	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	365	{
219	int i;	366	int i;
220		367
221	for (i = 0; i < eventcnt; ++i)	368	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	369	ev_feed_event (EV_A_ events [i], type);
223	}	370	}
224		371
225	static void	372	inline void
226	fd_event (int fd, int events)	373	fd_event (EV_P_ int fd, int revents)
227	{	374	{
228	ANFD *anfd = anfds + fd;	375	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	376	struct ev_io *w;
230		377
231	for (w = anfd->head; w; w = w->next)	378	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	379	{
233	int ev = w->events & events;	380	int ev = w->events & revents;
234		381
235	if (ev)	382	if (ev)
236	event ((W)w, ev);	383	ev_feed_event (EV_A_ (W)w, ev);
237	}	384	}
		385	}
		386
		387	void
		388	ev_feed_fd_event (EV_P_ int fd, int revents)
		389	{
		390	fd_event (EV_A_ fd, revents);
238	}	391	}
239		392
240	/*****************************************************************************/	393	/*****************************************************************************/
241		394
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	395	static void
246	fd_reify (void)	396	fd_reify (EV_P)
247	{	397	{
248	int i;	398	int i;
249		399
250	for (i = 0; i < fdchangecnt; ++i)	400	for (i = 0; i < fdchangecnt; ++i)
251	{	401	{
…		…
253	ANFD *anfd = anfds + fd;	403	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	404	struct ev_io *w;
255		405
256	int events = 0;	406	int events = 0;
257		407
258	for (w = anfd->head; w; w = w->next)	408	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	409	events \|= w->events;
260		410
261	anfd->reify = 0;	411	anfd->reify = 0;
262		412
263	if (anfd->events != events)
264	{
265	method_modify (fd, anfd->events, events);	413	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	414	anfd->events = events;
267	}
268	}	415	}
269		416
270	fdchangecnt = 0;	417	fdchangecnt = 0;
271	}	418	}
272		419
273	static void	420	static void
274	fd_change (int fd)	421	fd_change (EV_P_ int fd)
275	{	422	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	423	if (anfds [fd].reify)
277	return;	424	return;
278		425
279	anfds [fd].reify = 1;	426	anfds [fd].reify = 1;
280		427
281	++fdchangecnt;	428	++fdchangecnt;
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
283	fdchanges [fdchangecnt - 1] = fd;	430	fdchanges [fdchangecnt - 1] = fd;
284	}	431	}
285		432
286	static void	433	static void
287	fd_kill (int fd)	434	fd_kill (EV_P_ int fd)
288	{	435	{
289	struct ev_io *w;	436	struct ev_io *w;
290		437
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	438	while ((w = (struct ev_io *)anfds [fd].head))
293	{	439	{
294	ev_io_stop (w);	440	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	441	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	442	}
		443	}
		444
		445	static int
		446	fd_valid (int fd)
		447	{
		448	#ifdef WIN32
		449	return !!win32_get_osfhandle (fd);
		450	#else
		451	return fcntl (fd, F_GETFD) != -1;
		452	#endif
297	}	453	}
298		454
299	/* called on EBADF to verify fds */	455	/* called on EBADF to verify fds */
300	static void	456	static void
301	fd_ebadf (void)	457	fd_ebadf (EV_P)
302	{	458	{
303	int fd;	459	int fd;
304		460
305	for (fd = 0; fd < anfdmax; ++fd)	461	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	462	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	463	if (!fd_valid (fd) == -1 && errno == EBADF)
308	fd_kill (fd);	464	fd_kill (EV_A_ fd);
309	}	465	}
310		466
311	/* called on ENOMEM in select/poll to kill some fds and retry */	467	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	468	static void
313	fd_enomem (void)	469	fd_enomem (EV_P)
314	{	470	{
315	int fd = anfdmax;	471	int fd;
316		472
317	while (fd--)	473	for (fd = anfdmax; fd--; )
318	if (anfds [fd].events)	474	if (anfds [fd].events)
319	{	475	{
320	close (fd);
321	fd_kill (fd);	476	fd_kill (EV_A_ fd);
322	return;	477	return;
323	}	478	}
324	}	479	}
325		480
		481	/* usually called after fork if method needs to re-arm all fds from scratch */
		482	static void
		483	fd_rearm_all (EV_P)
		484	{
		485	int fd;
		486
		487	/* this should be highly optimised to not do anything but set a flag */
		488	for (fd = 0; fd < anfdmax; ++fd)
		489	if (anfds [fd].events)
		490	{
		491	anfds [fd].events = 0;
		492	fd_change (EV_A_ fd);
		493	}
		494	}
		495
326	/*****************************************************************************/	496	/*****************************************************************************/
327		497
328	static struct ev_timer **timers;
329	static int timermax, timercnt;
330
331	static struct ev_periodic **periodics;
332	static int periodicmax, periodiccnt;
333
334	static void	498	static void
335	upheap (WT *timers, int k)	499	upheap (WT *heap, int k)
336	{	500	{
337	WT w = timers [k];	501	WT w = heap [k];
338		502
339	while (k && timers [k >> 1]->at > w->at)	503	while (k && heap [k >> 1]->at > w->at)
340	{	504	{
341	timers [k] = timers [k >> 1];	505	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	506	((W)heap [k])->active = k + 1;
343	k >>= 1;	507	k >>= 1;
344	}	508	}
345		509
346	timers [k] = w;	510	heap [k] = w;
347	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
348		512
349	}	513	}
350		514
351	static void	515	static void
352	downheap (WT *timers, int N, int k)	516	downheap (WT *heap, int N, int k)
353	{	517	{
354	WT w = timers [k];	518	WT w = heap [k];
355		519
356	while (k < (N >> 1))	520	while (k < (N >> 1))
357	{	521	{
358	int j = k << 1;	522	int j = k << 1;
359		523
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	524	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	525	++j;
362		526
363	if (w->at <= timers [j]->at)	527	if (w->at <= heap [j]->at)
364	break;	528	break;
365		529
366	timers [k] = timers [j];	530	heap [k] = heap [j];
367	timers [k]->active = k + 1;	531	((W)heap [k])->active = k + 1;
368	k = j;	532	k = j;
369	}	533	}
370		534
371	timers [k] = w;	535	heap [k] = w;
372	timers [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
		537	}
		538
		539	inline void
		540	adjustheap (WT *heap, int N, int k)
		541	{
		542	upheap (heap, k);
		543	downheap (heap, N, k);
373	}	544	}
374		545
375	/*****************************************************************************/	546	/*****************************************************************************/
376		547
377	typedef struct	548	typedef struct
378	{	549	{
379	struct ev_signal *head;	550	WL head;
380	sig_atomic_t volatile gotsig;	551	sig_atomic_t volatile gotsig;
381	} ANSIG;	552	} ANSIG;
382		553
383	static ANSIG *signals;	554	static ANSIG *signals;
384	static int signalmax;	555	static int signalmax;
…		…
400	}	571	}
401		572
402	static void	573	static void
403	sighandler (int signum)	574	sighandler (int signum)
404	{	575	{
		576	#if WIN32
		577	signal (signum, sighandler);
		578	#endif
		579
405	signals [signum - 1].gotsig = 1;	580	signals [signum - 1].gotsig = 1;
406		581
407	if (!gotsig)	582	if (!gotsig)
408	{	583	{
		584	int old_errno = errno;
409	gotsig = 1;	585	gotsig = 1;
		586	#ifdef WIN32
		587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		588	#else
410	write (sigpipe [1], &signum, 1);	589	write (sigpipe [1], &signum, 1);
		590	#endif
		591	errno = old_errno;
411	}	592	}
412	}	593	}
413		594
		595	void
		596	ev_feed_signal_event (EV_P_ int signum)
		597	{
		598	WL w;
		599
		600	#if EV_MULTIPLICITY
		601	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		602	#endif
		603
		604	--signum;
		605
		606	if (signum < 0 \|\| signum >= signalmax)
		607	return;
		608
		609	signals [signum].gotsig = 0;
		610
		611	for (w = signals [signum].head; w; w = w->next)
		612	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		613	}
		614
414	static void	615	static void
415	sigcb (struct ev_io *iow, int revents)	616	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	617	{
417	struct ev_signal *w;
418	int signum;	618	int signum;
419		619
		620	#ifdef WIN32
		621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		622	#else
420	read (sigpipe [0], &revents, 1);	623	read (sigpipe [0], &revents, 1);
		624	#endif
421	gotsig = 0;	625	gotsig = 0;
422		626
423	for (signum = signalmax; signum--; )	627	for (signum = signalmax; signum--; )
424	if (signals [signum].gotsig)	628	if (signals [signum].gotsig)
425	{	629	ev_feed_signal_event (EV_A_ signum + 1);
426	signals [signum].gotsig = 0;
427
428	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);
430	}
431	}	630	}
432		631
433	static void	632	static void
434	siginit (void)	633	siginit (EV_P)
435	{	634	{
		635	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	636	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	637	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		638
439	/* rather than sort out wether we really need nb, set it */	639	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	640	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	641	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		642	#endif
442		643
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	644	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	645	ev_io_start (EV_A_ &sigev);
		646	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	647	}
446		648
447	/*****************************************************************************/	649	/*****************************************************************************/
448		650
449	static struct ev_idle **idles;
450	static int idlemax, idlecnt;
451
452	static struct ev_prepare **prepares;
453	static int preparemax, preparecnt;
454
455	static struct ev_check **checks;
456	static int checkmax, checkcnt;
457
458	/*****************************************************************************/
459
460	static struct ev_child *childs [PID_HASHSIZE];	651	static struct ev_child *childs [PID_HASHSIZE];
		652
		653	#ifndef WIN32
		654
461	static struct ev_signal childev;	655	static struct ev_signal childev;
462		656
463	#ifndef WCONTINUED	657	#ifndef WCONTINUED
464	# define WCONTINUED 0	658	# define WCONTINUED 0
465	#endif	659	#endif
466		660
467	static void	661	static void
468	childcb (struct ev_signal *sw, int revents)	662	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	663	{
470	struct ev_child *w;	664	struct ev_child *w;
		665
		666	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		667	if (w->pid == pid \|\| !w->pid)
		668	{
		669	ev_priority (w) = ev_priority (sw); /* need to do it now */
		670	w->rpid = pid;
		671	w->rstatus = status;
		672	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		673	}
		674	}
		675
		676	static void
		677	childcb (EV_P_ struct ev_signal *sw, int revents)
		678	{
471	int pid, status;	679	int pid, status;
472		680
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	682	{
475	if (w->pid == pid \|\| !w->pid)	683	/* make sure we are called again until all childs have been reaped */
476	{	684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	685
478	event ((W)w, EV_CHILD);	686	child_reap (EV_A_ sw, pid, pid, status);
479	}	687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		688	}
480	}	689	}
		690
		691	#endif
481		692
482	/*****************************************************************************/	693	/*****************************************************************************/
483		694
		695	#if EV_USE_KQUEUE
		696	# include "ev_kqueue.c"
		697	#endif
484	#if EV_USE_EPOLL	698	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	699	# include "ev_epoll.c"
486	#endif	700	#endif
487	#if EV_USE_POLL	701	#if EV_USE_POLL
488	# include "ev_poll.c"	702	# include "ev_poll.c"
…		…
501	ev_version_minor (void)	715	ev_version_minor (void)
502	{	716	{
503	return EV_VERSION_MINOR;	717	return EV_VERSION_MINOR;
504	}	718	}
505		719
506	/* return true if we are running with elevated privileges and ignore env variables */	720	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	721	static int
508	enable_secure ()	722	enable_secure (void)
509	{	723	{
		724	#ifdef WIN32
		725	return 0;
		726	#else
510	return getuid () != geteuid ()	727	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	728	\|\| getgid () != getegid ();
		729	#endif
512	}	730	}
513		731
514	int ev_init (int methods)	732	int
		733	ev_method (EV_P)
515	{	734	{
		735	return method;
		736	}
		737
		738	static void
		739	loop_init (EV_P_ int methods)
		740	{
516	if (!ev_method)	741	if (!method)
517	{	742	{
518	#if EV_USE_MONOTONIC	743	#if EV_USE_MONOTONIC
519	{	744	{
520	struct timespec ts;	745	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	747	have_monotonic = 1;
523	}	748	}
524	#endif	749	#endif
525		750
526	ev_now = ev_time ();	751	ev_rt_now = ev_time ();
527	now = get_clock ();	752	mn_now = get_clock ();
528	now_floor = now;	753	now_floor = mn_now;
529	diff = ev_now - now;	754	rtmn_diff = ev_rt_now - mn_now;
530
531	if (pipe (sigpipe))
532	return 0;
533		755
534	if (methods == EVMETHOD_AUTO)	756	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	757	if (!enable_secure () && getenv ("LIBEV_METHODS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	758	methods = atoi (getenv ("LIBEV_METHODS"));
537	else	759	else
538	methods = EVMETHOD_ANY;	760	methods = EVMETHOD_ANY;
539		761
540	ev_method = 0;	762	method = 0;
		763	#if EV_USE_WIN32
		764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		765	#endif
		766	#if EV_USE_KQUEUE
		767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		768	#endif
541	#if EV_USE_EPOLL	769	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	771	#endif
544	#if EV_USE_POLL	772	#if EV_USE_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	774	#endif
547	#if EV_USE_SELECT	775	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	777	#endif
550		778
		779	ev_init (&sigev, sigcb);
		780	ev_set_priority (&sigev, EV_MAXPRI);
		781	}
		782	}
		783
		784	void
		785	loop_destroy (EV_P)
		786	{
		787	int i;
		788
		789	#if EV_USE_WIN32
		790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		791	#endif
		792	#if EV_USE_KQUEUE
		793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		794	#endif
		795	#if EV_USE_EPOLL
		796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		797	#endif
		798	#if EV_USE_POLL
		799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		800	#endif
		801	#if EV_USE_SELECT
		802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		803	#endif
		804
		805	for (i = NUMPRI; i--; )
		806	array_free (pending, [i]);
		807
		808	/* have to use the microsoft-never-gets-it-right macro */
		809	array_free_microshit (fdchange);
		810	array_free_microshit (timer);
		811	#if EV_PERIODICS
		812	array_free_microshit (periodic);
		813	#endif
		814	array_free_microshit (idle);
		815	array_free_microshit (prepare);
		816	array_free_microshit (check);
		817
		818	method = 0;
		819	}
		820
		821	static void
		822	loop_fork (EV_P)
		823	{
		824	#if EV_USE_EPOLL
		825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		826	#endif
		827	#if EV_USE_KQUEUE
		828	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		829	#endif
		830
		831	if (ev_is_active (&sigev))
		832	{
		833	/* default loop */
		834
		835	ev_ref (EV_A);
		836	ev_io_stop (EV_A_ &sigev);
		837	close (sigpipe [0]);
		838	close (sigpipe [1]);
		839
		840	while (pipe (sigpipe))
		841	syserr ("(libev) error creating pipe");
		842
		843	siginit (EV_A);
		844	}
		845
		846	postfork = 0;
		847	}
		848
		849	#if EV_MULTIPLICITY
		850	struct ev_loop *
		851	ev_loop_new (int methods)
		852	{
		853	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		854
		855	memset (loop, 0, sizeof (struct ev_loop));
		856
		857	loop_init (EV_A_ methods);
		858
		859	if (ev_method (EV_A))
		860	return loop;
		861
		862	return 0;
		863	}
		864
		865	void
		866	ev_loop_destroy (EV_P)
		867	{
		868	loop_destroy (EV_A);
		869	ev_free (loop);
		870	}
		871
		872	void
		873	ev_loop_fork (EV_P)
		874	{
		875	postfork = 1;
		876	}
		877
		878	#endif
		879
		880	#if EV_MULTIPLICITY
		881	struct ev_loop *
		882	#else
		883	int
		884	#endif
		885	ev_default_loop (int methods)
		886	{
		887	if (sigpipe [0] == sigpipe [1])
		888	if (pipe (sigpipe))
		889	return 0;
		890
		891	if (!default_loop)
		892	{
		893	#if EV_MULTIPLICITY
		894	struct ev_loop *loop = default_loop = &default_loop_struct;
		895	#else
		896	default_loop = 1;
		897	#endif
		898
		899	loop_init (EV_A_ methods);
		900
551	if (ev_method)	901	if (ev_method (EV_A))
552	{	902	{
553	ev_watcher_init (&sigev, sigcb);
554	siginit ();	903	siginit (EV_A);
555		904
		905	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	906	ev_signal_init (&childev, childcb, SIGCHLD);
		907	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	908	ev_signal_start (EV_A_ &childev);
		909	ev_unref (EV_A); /* child watcher should not keep loop alive */
		910	#endif
558	}	911	}
		912	else
		913	default_loop = 0;
559	}	914	}
560		915
561	return ev_method;	916	return default_loop;
		917	}
		918
		919	void
		920	ev_default_destroy (void)
		921	{
		922	#if EV_MULTIPLICITY
		923	struct ev_loop *loop = default_loop;
		924	#endif
		925
		926	#ifndef WIN32
		927	ev_ref (EV_A); /* child watcher */
		928	ev_signal_stop (EV_A_ &childev);
		929	#endif
		930
		931	ev_ref (EV_A); /* signal watcher */
		932	ev_io_stop (EV_A_ &sigev);
		933
		934	close (sigpipe [0]); sigpipe [0] = 0;
		935	close (sigpipe [1]); sigpipe [1] = 0;
		936
		937	loop_destroy (EV_A);
		938	}
		939
		940	void
		941	ev_default_fork (void)
		942	{
		943	#if EV_MULTIPLICITY
		944	struct ev_loop *loop = default_loop;
		945	#endif
		946
		947	if (method)
		948	postfork = 1;
562	}	949	}
563		950
564	/*****************************************************************************/	951	/*****************************************************************************/
565		952
566	void
567	ev_fork_prepare (void)
568	{
569	/* nop */
570	}
571
572	void
573	ev_fork_parent (void)
574	{
575	/* nop */
576	}
577
578	void
579	ev_fork_child (void)
580	{
581	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();
584	#endif
585
586	ev_io_stop (&sigev);
587	close (sigpipe [0]);
588	close (sigpipe [1]);
589	pipe (sigpipe);
590	siginit ();
591	}
592
593	/*****************************************************************************/
594
595	static void	953	static int
		954	any_pending (EV_P)
		955	{
		956	int pri;
		957
		958	for (pri = NUMPRI; pri--; )
		959	if (pendingcnt [pri])
		960	return 1;
		961
		962	return 0;
		963	}
		964
		965	static void
596	call_pending (void)	966	call_pending (EV_P)
597	{	967	{
		968	int pri;
		969
		970	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	971	while (pendingcnt [pri])
599	{	972	{
600	ANPENDING *p = pendings + --pendingcnt;	973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		974
602	if (p->w)	975	if (p->w)
603	{	976	{
604	p->w->pending = 0;	977	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	978	EV_CB_INVOKE (p->w, p->events);
606	}	979	}
607	}	980	}
608	}	981	}
609		982
610	static void	983	static void
611	timers_reify (void)	984	timers_reify (EV_P)
612	{	985	{
613	while (timercnt && timers [0]->at <= now)	986	while (timercnt && ((WT)timers [0])->at <= mn_now)
614	{	987	{
615	struct ev_timer *w = timers [0];	988	struct ev_timer *w = timers [0];
		989
		990	assert (("inactive timer on timer heap detected", ev_is_active (w)));
616		991
617	/* first reschedule or stop timer */	992	/* first reschedule or stop timer */
618	if (w->repeat)	993	if (w->repeat)
619	{	994	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	995	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		996
621	w->at = now + w->repeat;	997	((WT)w)->at += w->repeat;
		998	if (((WT)w)->at < mn_now)
		999	((WT)w)->at = mn_now;
		1000
622	downheap ((WT *)timers, timercnt, 0);	1001	downheap ((WT *)timers, timercnt, 0);
623	}	1002	}
624	else	1003	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	1004	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		1005
627	event ((W)w, EV_TIMEOUT);	1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
628	}	1007	}
629	}	1008	}
630		1009
		1010	#if EV_PERIODICS
631	static void	1011	static void
632	periodics_reify (void)	1012	periodics_reify (EV_P)
633	{	1013	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
635	{	1015	{
636	struct ev_periodic *w = periodics [0];	1016	struct ev_periodic *w = periodics [0];
637		1017
		1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1019
638	/* first reschedule or stop timer */	1020	/* first reschedule or stop timer */
639	if (w->interval)	1021	if (w->reschedule_cb)
640	{	1022	{
		1023	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1024
		1025	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1026	downheap ((WT *)periodics, periodiccnt, 0);
		1027	}
		1028	else if (w->interval)
		1029	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1030	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
642	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1031	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
643	downheap ((WT *)periodics, periodiccnt, 0);	1032	downheap ((WT *)periodics, periodiccnt, 0);
644	}	1033	}
645	else	1034	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	1035	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		1036
648	event ((W)w, EV_PERIODIC);	1037	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
649	}	1038	}
650	}	1039	}
651		1040
652	static void	1041	static void
653	periodics_reschedule (ev_tstamp diff)	1042	periodics_reschedule (EV_P)
654	{	1043	{
655	int i;	1044	int i;
656		1045
657	/* adjust periodics after time jump */	1046	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	1047	for (i = 0; i < periodiccnt; ++i)
659	{	1048	{
660	struct ev_periodic *w = periodics [i];	1049	struct ev_periodic *w = periodics [i];
661		1050
		1051	if (w->reschedule_cb)
		1052	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
662	if (w->interval)	1053	else if (w->interval)
663	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1054	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
665
666	if (fabs (diff) >= 1e-4)
667	{
668	ev_periodic_stop (w);
669	ev_periodic_start (w);
670
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}
673	}
674	}	1055	}
675	}
676		1056
677	static int	1057	/* now rebuild the heap */
		1058	for (i = periodiccnt >> 1; i--; )
		1059	downheap ((WT *)periodics, periodiccnt, i);
		1060	}
		1061	#endif
		1062
		1063	inline int
678	time_update_monotonic (void)	1064	time_update_monotonic (EV_P)
679	{	1065	{
680	now = get_clock ();	1066	mn_now = get_clock ();
681		1067
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1068	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	1069	{
684	ev_now = now + diff;	1070	ev_rt_now = rtmn_diff + mn_now;
685	return 0;	1071	return 0;
686	}	1072	}
687	else	1073	else
688	{	1074	{
689	now_floor = now;	1075	now_floor = mn_now;
690	ev_now = ev_time ();	1076	ev_rt_now = ev_time ();
691	return 1;	1077	return 1;
692	}	1078	}
693	}	1079	}
694		1080
695	static void	1081	static void
696	time_update (void)	1082	time_update (EV_P)
697	{	1083	{
698	int i;	1084	int i;
699		1085
700	#if EV_USE_MONOTONIC	1086	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	1087	if (expect_true (have_monotonic))
702	{	1088	{
703	if (time_update_monotonic ())	1089	if (time_update_monotonic (EV_A))
704	{	1090	{
705	ev_tstamp odiff = diff;	1091	ev_tstamp odiff = rtmn_diff;
706		1092
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1093	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	1094	{
709	diff = ev_now - now;	1095	rtmn_diff = ev_rt_now - mn_now;
710		1096
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1097	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	1098	return; /* all is well */
713		1099
714	ev_now = ev_time ();	1100	ev_rt_now = ev_time ();
715	now = get_clock ();	1101	mn_now = get_clock ();
716	now_floor = now;	1102	now_floor = mn_now;
717	}	1103	}
718		1104
		1105	# if EV_PERIODICS
719	periodics_reschedule (diff - odiff);	1106	periodics_reschedule (EV_A);
		1107	# endif
720	/* no timer adjustment, as the monotonic clock doesn't jump */	1108	/* no timer adjustment, as the monotonic clock doesn't jump */
		1109	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
721	}	1110	}
722	}	1111	}
723	else	1112	else
724	#endif	1113	#endif
725	{	1114	{
726	ev_now = ev_time ();	1115	ev_rt_now = ev_time ();
727		1116
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1117	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	1118	{
		1119	#if EV_PERIODICS
730	periodics_reschedule (ev_now - now);	1120	periodics_reschedule (EV_A);
		1121	#endif
731		1122
732	/* adjust timers. this is easy, as the offset is the same for all */	1123	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	1124	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	1125	((WT)timers [i])->at += ev_rt_now - mn_now;
735	}	1126	}
736		1127
737	now = ev_now;	1128	mn_now = ev_rt_now;
738	}	1129	}
739	}	1130	}
740		1131
741	int ev_loop_done;	1132	void
		1133	ev_ref (EV_P)
		1134	{
		1135	++activecnt;
		1136	}
742		1137
		1138	void
		1139	ev_unref (EV_P)
		1140	{
		1141	--activecnt;
		1142	}
		1143
		1144	static int loop_done;
		1145
		1146	void
743	void ev_loop (int flags)	1147	ev_loop (EV_P_ int flags)
744	{	1148	{
745	double block;	1149	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1150	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		1151
748	do	1152	do
749	{	1153	{
750	/* queue check watchers (and execute them) */	1154	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	1155	if (expect_false (preparecnt))
752	{	1156	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	1158	call_pending (EV_A);
755	}	1159	}
756		1160
		1161	/* we might have forked, so reify kernel state if necessary */
		1162	if (expect_false (postfork))
		1163	loop_fork (EV_A);
		1164
757	/* update fd-related kernel structures */	1165	/* update fd-related kernel structures */
758	fd_reify ();	1166	fd_reify (EV_A);
759		1167
760	/* calculate blocking time */	1168	/* calculate blocking time */
761		1169
762	/* we only need this for !monotonic clockor timers, but as we basically	1170	/* we only need this for !monotonic clock or timers, but as we basically
763	always have timers, we just calculate it always */	1171	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	1172	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	1173	if (expect_true (have_monotonic))
766	time_update_monotonic ();	1174	time_update_monotonic (EV_A);
767	else	1175	else
768	#endif	1176	#endif
769	{	1177	{
770	ev_now = ev_time ();	1178	ev_rt_now = ev_time ();
771	now = ev_now;	1179	mn_now = ev_rt_now;
772	}	1180	}
773		1181
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1182	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	1183	block = 0.;
776	else	1184	else
777	{	1185	{
778	block = MAX_BLOCKTIME;	1186	block = MAX_BLOCKTIME;
779		1187
780	if (timercnt)	1188	if (timercnt)
781	{	1189	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
783	if (block > to) block = to;	1191	if (block > to) block = to;
784	}	1192	}
785		1193
		1194	#if EV_PERIODICS
786	if (periodiccnt)	1195	if (periodiccnt)
787	{	1196	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
789	if (block > to) block = to;	1198	if (block > to) block = to;
790	}	1199	}
		1200	#endif
791		1201
792	if (block < 0.) block = 0.;	1202	if (block < 0.) block = 0.;
793	}	1203	}
794		1204
795	method_poll (block);	1205	method_poll (EV_A_ block);
796		1206
797	/* update ev_now, do magic */	1207	/* update ev_rt_now, do magic */
798	time_update ();	1208	time_update (EV_A);
799		1209
800	/* queue pending timers and reschedule them */	1210	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	1211	timers_reify (EV_A); /* relative timers called last */
		1212	#if EV_PERIODICS
802	periodics_reify (); /* absolute timers called first */	1213	periodics_reify (EV_A); /* absolute timers called first */
		1214	#endif
803		1215
804	/* queue idle watchers unless io or timers are pending */	1216	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	1217	if (idlecnt && !any_pending (EV_A))
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		1219
808	/* queue check watchers, to be executed first */	1220	/* queue check watchers, to be executed first */
809	if (checkcnt)	1221	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		1223
812	call_pending ();	1224	call_pending (EV_A);
813	}	1225	}
814	while (!ev_loop_done);	1226	while (activecnt && !loop_done);
815		1227
816	if (ev_loop_done != 2)	1228	if (loop_done != 2)
817	ev_loop_done = 0;	1229	loop_done = 0;
		1230	}
		1231
		1232	void
		1233	ev_unloop (EV_P_ int how)
		1234	{
		1235	loop_done = how;
818	}	1236	}
819		1237
820	/*****************************************************************************/	1238	/*****************************************************************************/
821		1239
822	static void	1240	inline void
823	wlist_add (WL *head, WL elem)	1241	wlist_add (WL *head, WL elem)
824	{	1242	{
825	elem->next = *head;	1243	elem->next = *head;
826	*head = elem;	1244	*head = elem;
827	}	1245	}
828		1246
829	static void	1247	inline void
830	wlist_del (WL *head, WL elem)	1248	wlist_del (WL *head, WL elem)
831	{	1249	{
832	while (*head)	1250	while (*head)
833	{	1251	{
834	if (*head == elem)	1252	if (*head == elem)
…		…
839		1257
840	head = &(*head)->next;	1258	head = &(*head)->next;
841	}	1259	}
842	}	1260	}
843		1261
844	static void	1262	inline void
845	ev_clear_pending (W w)	1263	ev_clear_pending (EV_P_ W w)
846	{	1264	{
847	if (w->pending)	1265	if (w->pending)
848	{	1266	{
849	pendings [w->pending - 1].w = 0;	1267	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	1268	w->pending = 0;
851	}	1269	}
852	}	1270	}
853		1271
854	static void	1272	inline void
855	ev_start (W w, int active)	1273	ev_start (EV_P_ W w, int active)
856	{	1274	{
		1275	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1276	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1277
857	w->active = active;	1278	w->active = active;
		1279	ev_ref (EV_A);
858	}	1280	}
859		1281
860	static void	1282	inline void
861	ev_stop (W w)	1283	ev_stop (EV_P_ W w)
862	{	1284	{
		1285	ev_unref (EV_A);
863	w->active = 0;	1286	w->active = 0;
864	}	1287	}
865		1288
866	/*****************************************************************************/	1289	/*****************************************************************************/
867		1290
868	void	1291	void
869	ev_io_start (struct ev_io *w)	1292	ev_io_start (EV_P_ struct ev_io *w)
870	{	1293	{
871	int fd = w->fd;	1294	int fd = w->fd;
872		1295
873	if (ev_is_active (w))	1296	if (ev_is_active (w))
874	return;	1297	return;
875		1298
876	assert (("ev_io_start called with negative fd", fd >= 0));	1299	assert (("ev_io_start called with negative fd", fd >= 0));
877		1300
878	ev_start ((W)w, 1);	1301	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1302	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1303	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		1304
882	fd_change (fd);	1305	fd_change (EV_A_ fd);
883	}	1306	}
884		1307
885	void	1308	void
886	ev_io_stop (struct ev_io *w)	1309	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1310	{
888	ev_clear_pending ((W)w);	1311	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
890	return;	1313	return;
891		1314
		1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1316
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1318	ev_stop (EV_A_ (W)w);
894		1319
895	fd_change (w->fd);	1320	fd_change (EV_A_ w->fd);
896	}	1321	}
897		1322
898	void	1323	void
899	ev_timer_start (struct ev_timer *w)	1324	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1325	{
901	if (ev_is_active (w))	1326	if (ev_is_active (w))
902	return;	1327	return;
903		1328
904	w->at += now;	1329	((WT)w)->at += mn_now;
905		1330
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1332
908	ev_start ((W)w, ++timercnt);	1333	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
910	timers [timercnt - 1] = w;	1335	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1336	upheap ((WT *)timers, timercnt - 1);
912	}
913		1337
		1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1339	}
		1340
914	void	1341	void
915	ev_timer_stop (struct ev_timer *w)	1342	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1343	{
917	ev_clear_pending ((W)w);	1344	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1345	if (!ev_is_active (w))
919	return;	1346	return;
920		1347
		1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1349
921	if (w->active < timercnt--)	1350	if (((W)w)->active < timercnt--)
922	{	1351	{
923	timers [w->active - 1] = timers [timercnt];	1352	timers [((W)w)->active - 1] = timers [timercnt];
924	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
925	}	1354	}
926		1355
927	w->at = w->repeat;	1356	((WT)w)->at -= mn_now;
928		1357
929	ev_stop ((W)w);	1358	ev_stop (EV_A_ (W)w);
930	}	1359	}
931		1360
932	void	1361	void
933	ev_timer_again (struct ev_timer *w)	1362	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1363	{
935	if (ev_is_active (w))	1364	if (ev_is_active (w))
936	{	1365	{
937	if (w->repeat)	1366	if (w->repeat)
938	{	1367	{
939	w->at = now + w->repeat;	1368	((WT)w)->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
941	}	1370	}
942	else	1371	else
943	ev_timer_stop (w);	1372	ev_timer_stop (EV_A_ w);
944	}	1373	}
945	else if (w->repeat)	1374	else if (w->repeat)
946	ev_timer_start (w);	1375	ev_timer_start (EV_A_ w);
947	}	1376	}
948		1377
		1378	#if EV_PERIODICS
949	void	1379	void
950	ev_periodic_start (struct ev_periodic *w)	1380	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1381	{
952	if (ev_is_active (w))	1382	if (ev_is_active (w))
953	return;	1383	return;
954		1384
		1385	if (w->reschedule_cb)
		1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1387	else if (w->interval)
		1388	{
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1389	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
956
957	/* this formula differs from the one in periodic_reify because we do not always round up */	1390	/* this formula differs from the one in periodic_reify because we do not always round up */
958	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1391	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1392	}
960		1393
961	ev_start ((W)w, ++periodiccnt);	1394	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
963	periodics [periodiccnt - 1] = w;	1396	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1397	upheap ((WT *)periodics, periodiccnt - 1);
965	}
966		1398
		1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1400	}
		1401
967	void	1402	void
968	ev_periodic_stop (struct ev_periodic *w)	1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1404	{
970	ev_clear_pending ((W)w);	1405	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1406	if (!ev_is_active (w))
972	return;	1407	return;
973		1408
		1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1410
974	if (w->active < periodiccnt--)	1411	if (((W)w)->active < periodiccnt--)
975	{	1412	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
978	}	1415	}
979		1416
980	ev_stop ((W)w);	1417	ev_stop (EV_A_ (W)w);
981	}	1418	}
982		1419
983	void	1420	void
		1421	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1422	{
		1423	/* TODO: use adjustheap and recalculation */
		1424	ev_periodic_stop (EV_A_ w);
		1425	ev_periodic_start (EV_A_ w);
		1426	}
		1427	#endif
		1428
		1429	void
984	ev_signal_start (struct ev_signal *w)	1430	ev_idle_start (EV_P_ struct ev_idle *w)
985	{	1431	{
986	if (ev_is_active (w))	1432	if (ev_is_active (w))
987	return;	1433	return;
988		1434
		1435	ev_start (EV_A_ (W)w, ++idlecnt);
		1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1437	idles [idlecnt - 1] = w;
		1438	}
		1439
		1440	void
		1441	ev_idle_stop (EV_P_ struct ev_idle *w)
		1442	{
		1443	ev_clear_pending (EV_A_ (W)w);
		1444	if (!ev_is_active (w))
		1445	return;
		1446
		1447	idles [((W)w)->active - 1] = idles [--idlecnt];
		1448	ev_stop (EV_A_ (W)w);
		1449	}
		1450
		1451	void
		1452	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1453	{
		1454	if (ev_is_active (w))
		1455	return;
		1456
		1457	ev_start (EV_A_ (W)w, ++preparecnt);
		1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1459	prepares [preparecnt - 1] = w;
		1460	}
		1461
		1462	void
		1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1464	{
		1465	ev_clear_pending (EV_A_ (W)w);
		1466	if (!ev_is_active (w))
		1467	return;
		1468
		1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1470	ev_stop (EV_A_ (W)w);
		1471	}
		1472
		1473	void
		1474	ev_check_start (EV_P_ struct ev_check *w)
		1475	{
		1476	if (ev_is_active (w))
		1477	return;
		1478
		1479	ev_start (EV_A_ (W)w, ++checkcnt);
		1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1481	checks [checkcnt - 1] = w;
		1482	}
		1483
		1484	void
		1485	ev_check_stop (EV_P_ struct ev_check *w)
		1486	{
		1487	ev_clear_pending (EV_A_ (W)w);
		1488	if (!ev_is_active (w))
		1489	return;
		1490
		1491	checks [((W)w)->active - 1] = checks [--checkcnt];
		1492	ev_stop (EV_A_ (W)w);
		1493	}
		1494
		1495	#ifndef SA_RESTART
		1496	# define SA_RESTART 0
		1497	#endif
		1498
		1499	void
		1500	ev_signal_start (EV_P_ struct ev_signal *w)
		1501	{
		1502	#if EV_MULTIPLICITY
		1503	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1504	#endif
		1505	if (ev_is_active (w))
		1506	return;
		1507
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1509
991	ev_start ((W)w, 1);	1510	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1513
995	if (!w->next)	1514	if (!((WL)w)->next)
996	{	1515	{
		1516	#if WIN32
		1517	signal (w->signum, sighandler);
		1518	#else
997	struct sigaction sa;	1519	struct sigaction sa;
998	sa.sa_handler = sighandler;	1520	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1521	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1522	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1523	sigaction (w->signum, &sa, 0);
		1524	#endif
1002	}	1525	}
1003	}	1526	}
1004		1527
1005	void	1528	void
1006	ev_signal_stop (struct ev_signal *w)	1529	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1530	{
1008	ev_clear_pending ((W)w);	1531	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1532	if (!ev_is_active (w))
1010	return;	1533	return;
1011		1534
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1535	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1536	ev_stop (EV_A_ (W)w);
1014		1537
1015	if (!signals [w->signum - 1].head)	1538	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1539	signal (w->signum, SIG_DFL);
1017	}	1540	}
1018		1541
1019	void	1542	void
1020	ev_idle_start (struct ev_idle *w)	1543	ev_child_start (EV_P_ struct ev_child *w)
1021	{	1544	{
		1545	#if EV_MULTIPLICITY
		1546	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1547	#endif
1022	if (ev_is_active (w))	1548	if (ev_is_active (w))
1023	return;	1549	return;
1024		1550
1025	ev_start ((W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;
1028	}
1029
1030	void
1031	ev_idle_stop (struct ev_idle *w)
1032	{
1033	ev_clear_pending ((W)w);
1034	if (ev_is_active (w))
1035	return;
1036
1037	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);
1039	}
1040
1041	void
1042	ev_prepare_start (struct ev_prepare *w)
1043	{
1044	if (ev_is_active (w))
1045	return;
1046
1047	ev_start ((W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;
1050	}
1051
1052	void
1053	ev_prepare_stop (struct ev_prepare *w)
1054	{
1055	ev_clear_pending ((W)w);
1056	if (ev_is_active (w))
1057	return;
1058
1059	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);
1061	}
1062
1063	void
1064	ev_check_start (struct ev_check *w)
1065	{
1066	if (ev_is_active (w))
1067	return;
1068
1069	ev_start ((W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;
1072	}
1073
1074	void
1075	ev_check_stop (struct ev_check *w)
1076	{
1077	ev_clear_pending ((W)w);
1078	if (ev_is_active (w))
1079	return;
1080
1081	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);
1083	}
1084
1085	void
1086	ev_child_start (struct ev_child *w)
1087	{
1088	if (ev_is_active (w))
1089	return;
1090
1091	ev_start ((W)w, 1);	1551	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1552	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1553	}
1094		1554
1095	void	1555	void
1096	ev_child_stop (struct ev_child *w)	1556	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1557	{
1098	ev_clear_pending ((W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1559	if (!ev_is_active (w))
1100	return;	1560	return;
1101		1561
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1563	ev_stop (EV_A_ (W)w);
1104	}	1564	}
1105		1565
1106	/*****************************************************************************/	1566	/*****************************************************************************/
1107		1567
1108	struct ev_once	1568	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1572	void (cb)(int revents, void arg);
1113	void *arg;	1573	void *arg;
1114	};	1574	};
1115		1575
1116	static void	1576	static void
1117	once_cb (struct ev_once *once, int revents)	1577	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1578	{
1119	void (cb)(int revents, void arg) = once->cb;	1579	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1580	void *arg = once->arg;
1121		1581
1122	ev_io_stop (&once->io);	1582	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1583	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1584	ev_free (once);
1125		1585
1126	cb (revents, arg);	1586	cb (revents, arg);
1127	}	1587	}
1128		1588
1129	static void	1589	static void
1130	once_cb_io (struct ev_io *w, int revents)	1590	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1591	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1592	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1593	}
1134		1594
1135	static void	1595	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1596	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1597	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1598	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1599	}
1140		1600
1141	void	1601	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1603	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1145		1605
1146	if (!once)	1606	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1148	else	1608	else
1149	{	1609	{
1150	once->cb = cb;	1610	once->cb = cb;
1151	once->arg = arg;	1611	once->arg = arg;
1152		1612
1153	ev_watcher_init (&once->io, once_cb_io);	1613	ev_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1614	if (fd >= 0)
1155	{	1615	{
1156	ev_io_set (&once->io, fd, events);	1616	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1617	ev_io_start (EV_A_ &once->io);
1158	}	1618	}
1159		1619
1160	ev_watcher_init (&once->to, once_cb_to);	1620	ev_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1621	if (timeout >= 0.)
1162	{	1622	{
1163	ev_timer_set (&once->to, timeout, 0.);	1623	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1624	ev_timer_start (EV_A_ &once->to);
1165	}	1625	}
1166	}	1626	}
1167	}	1627	}
1168		1628
1169	/*****************************************************************************/	1629	#ifdef __cplusplus
1170
1171	#if 0
1172
1173	struct ev_io wio;
1174
1175	static void
1176	sin_cb (struct ev_io *w, int revents)
1177	{
1178	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1179	}	1630	}
1180
1181	static void
1182	ocb (struct ev_timer *w, int revents)
1183	{
1184	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1185	ev_timer_stop (w);
1186	ev_timer_start (w);
1187	}
1188
1189	static void
1190	scb (struct ev_signal *w, int revents)
1191	{
1192	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1193	ev_io_stop (&wio);
1194	ev_io_start (&wio);
1195	}
1196
1197	static void
1198	gcb (struct ev_signal *w, int revents)
1199	{
1200	fprintf (stderr, "generic %x\n", revents);
1201
1202	}
1203
1204	int main (void)
1205	{
1206	ev_init (0);
1207
1208	ev_io_init (&wio, sin_cb, 0, EV_READ);
1209	ev_io_start (&wio);
1210
1211	struct ev_timer t[10000];
1212
1213	#if 0
1214	int i;
1215	for (i = 0; i < 10000; ++i)
1216	{
1217	struct ev_timer *w = t + i;
1218	ev_watcher_init (w, ocb, i);
1219	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1220	ev_timer_start (w);
1221	if (drand48 () < 0.5)
1222	ev_timer_stop (w);
1223	}
1224	#endif	1631	#endif
1225		1632
1226	struct ev_timer t1;
1227	ev_timer_init (&t1, ocb, 5, 10);
1228	ev_timer_start (&t1);
1229
1230	struct ev_signal sig;
1231	ev_signal_init (&sig, scb, SIGQUIT);
1232	ev_signal_start (&sig);
1233
1234	struct ev_check cw;
1235	ev_check_init (&cw, gcb);
1236	ev_check_start (&cw);
1237
1238	struct ev_idle iw;
1239	ev_idle_init (&iw, gcb);
1240	ev_idle_start (&iw);
1241
1242	ev_loop (0);
1243
1244	return 0;
1245	}
1246
1247	#endif
1248
1249
1250
1251

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Comparing libev/ev.c (file contents): Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs. Revision 1.101 by root, Sun Nov 11 04:04:23 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.101 by root, Sun Nov 11 04:04:23 2007 UTC