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

Comparing libev/ev.c (file contents):
Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs.
Revision 1.117 by ayin, Thu Nov 15 17:15:56 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_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>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	89	# endif
50	#include <sys/time.h>	90	#endif
51	#include <time.h>
52		91
53	/**/	92	/**/
54		93
55	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
57	#endif	96	#endif
58		97
59	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
61	#endif	101	#endif
62		102
63	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
65	#endif	109	#endif
66		110
67	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
69	#endif	113	#endif
…		…
75	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
77	#endif	121	#endif
78		122
79	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
80		130
81	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
84	#endif	134	#endif
85		135
86	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
89	#endif	143	#endif
90		144
91	/**/	145	/**/
92		146
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	147	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	148	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	149	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	150	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
98	#include "ev.h"	155	# include "ev.h"
		156	#endif
99		157
100	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	160	# define inline inline
103	#else	161	#else
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
110		168
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		171
		172	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		173	#define EMPTY2(a,b) /* used to suppress some warnings */
		174
114	typedef struct ev_watcher *W;	175	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	176	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	177	typedef struct ev_watcher_time *WT;
117		178
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	179	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		180
		181	#ifdef _WIN32
		182	# include "ev_win32.c"
		183	#endif
		184
		185	/*****************************************************************************/
		186
		187	static void (syserr_cb)(const char msg);
		188
		189	void ev_set_syserr_cb (void (cb)(const char msg))
		190	{
		191	syserr_cb = cb;
		192	}
		193
		194	static void
		195	syserr (const char *msg)
		196	{
		197	if (!msg)
		198	msg = "(libev) system error";
		199
		200	if (syserr_cb)
		201	syserr_cb (msg);
		202	else
		203	{
		204	perror (msg);
		205	abort ();
		206	}
		207	}
		208
		209	static void (alloc)(void *ptr, long size);
		210
		211	void ev_set_allocator (void (cb)(void *ptr, long size))
		212	{
		213	alloc = cb;
		214	}
		215
		216	static void *
		217	ev_realloc (void *ptr, long size)
		218	{
		219	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		220
		221	if (!ptr && size)
		222	{
		223	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		224	abort ();
		225	}
		226
		227	return ptr;
		228	}
		229
		230	#define ev_malloc(size) ev_realloc (0, (size))
		231	#define ev_free(ptr) ev_realloc ((ptr), 0)
		232
		233	/*****************************************************************************/
		234
		235	typedef struct
		236	{
		237	WL head;
		238	unsigned char events;
		239	unsigned char reify;
		240	#if EV_SELECT_IS_WINSOCKET
		241	SOCKET handle;
		242	#endif
		243	} ANFD;
		244
		245	typedef struct
		246	{
		247	W w;
		248	int events;
		249	} ANPENDING;
		250
		251	#if EV_MULTIPLICITY
		252
		253	struct ev_loop
		254	{
		255	ev_tstamp ev_rt_now;
		256	#define ev_rt_now ((loop)->ev_rt_now)
		257	#define VAR(name,decl) decl;
		258	#include "ev_vars.h"
		259	#undef VAR
		260	};
		261	#include "ev_wrap.h"
		262
		263	static struct ev_loop default_loop_struct;
		264	struct ev_loop *ev_default_loop_ptr;
		265
		266	#else
		267
119	ev_tstamp ev_now;	268	ev_tstamp ev_rt_now;
120	int ev_method;	269	#define VAR(name,decl) static decl;
		270	#include "ev_vars.h"
		271	#undef VAR
121		272
122	static int have_monotonic; /* runtime */	273	static int ev_default_loop_ptr;
123		274
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	275	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		276
128	/*****************************************************************************/	277	/*****************************************************************************/
129		278
130	ev_tstamp	279	ev_tstamp
131	ev_time (void)	280	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	288	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	289	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	290	#endif
142	}	291	}
143		292
144	static ev_tstamp	293	inline ev_tstamp
145	get_clock (void)	294	get_clock (void)
146	{	295	{
147	#if EV_USE_MONOTONIC	296	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	297	if (expect_true (have_monotonic))
149	{	298	{
…		…
154	#endif	303	#endif
155		304
156	return ev_time ();	305	return ev_time ();
157	}	306	}
158		307
		308	#if EV_MULTIPLICITY
		309	ev_tstamp
		310	ev_now (EV_P)
		311	{
		312	return ev_rt_now;
		313	}
		314	#endif
		315
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	316	#define array_roundsize(type,n) (((n) \| 4) & ~3)
160		317
161	#define array_needsize(base,cur,cnt,init) \	318	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	319	if (expect_false ((cnt) > cur)) \
163	{ \	320	{ \
164	int newcnt = cur; \	321	int newcnt = cur; \
165	do \	322	do \
166	{ \	323	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	324	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	325	} \
169	while ((cnt) > newcnt); \	326	while ((cnt) > newcnt); \
170	\	327	\
171	base = realloc (base, sizeof (base) (newcnt)); \	328	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	329	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	330	cur = newcnt; \
174	}	331	}
		332
		333	#define array_slim(type,stem) \
		334	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		335	{ \
		336	stem ## max = array_roundsize (stem ## cnt >> 1); \
		337	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		338	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		339	}
		340
		341	#define array_free(stem, idx) \
		342	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		343
176	/*****************************************************************************/	344	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		345
188	static void	346	static void
189	anfds_init (ANFD *base, int count)	347	anfds_init (ANFD *base, int count)
190	{	348	{
191	while (count--)	349	while (count--)
…		…
196		354
197	++base;	355	++base;
198	}	356	}
199	}	357	}
200		358
201	typedef struct	359	void
		360	ev_feed_event (EV_P_ void *w, int revents)
202	{	361	{
203	W w;	362	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		363
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	364	if (w_->pending)
214	{	365	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	367	return;
217	}	368	}
218		369
219	w->pending = ++pendingcnt [ABSPRI (w)];	370	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	371	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	372	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	374	}
224		375
225	static void	376	static void
226	queue_events (W *events, int eventcnt, int type)	377	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	378	{
228	int i;	379	int i;
229		380
230	for (i = 0; i < eventcnt; ++i)	381	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	382	ev_feed_event (EV_A_ events [i], type);
232	}	383	}
233		384
234	static void	385	inline void
235	fd_event (int fd, int events)	386	fd_event (EV_P_ int fd, int revents)
236	{	387	{
237	ANFD *anfd = anfds + fd;	388	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	389	struct ev_io *w;
239		390
240	for (w = anfd->head; w; w = w->next)	391	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	392	{
242	int ev = w->events & events;	393	int ev = w->events & revents;
243		394
244	if (ev)	395	if (ev)
245	event ((W)w, ev);	396	ev_feed_event (EV_A_ (W)w, ev);
246	}	397	}
		398	}
		399
		400	void
		401	ev_feed_fd_event (EV_P_ int fd, int revents)
		402	{
		403	fd_event (EV_A_ fd, revents);
247	}	404	}
248		405
249	/*****************************************************************************/	406	/*****************************************************************************/
250		407
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	408	static void
255	fd_reify (void)	409	fd_reify (EV_P)
256	{	410	{
257	int i;	411	int i;
258		412
259	for (i = 0; i < fdchangecnt; ++i)	413	for (i = 0; i < fdchangecnt; ++i)
260	{	414	{
…		…
262	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	417	struct ev_io *w;
264		418
265	int events = 0;	419	int events = 0;
266		420
267	for (w = anfd->head; w; w = w->next)	421	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	422	events \|= w->events;
269		423
		424	#if EV_SELECT_IS_WINSOCKET
		425	if (events)
		426	{
		427	unsigned long argp;
		428	anfd->handle = _get_osfhandle (fd);
		429	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		430	}
		431	#endif
		432
270	anfd->reify = 0;	433	anfd->reify = 0;
271		434
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	435	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	436	anfd->events = events;
276	}
277	}	437	}
278		438
279	fdchangecnt = 0;	439	fdchangecnt = 0;
280	}	440	}
281		441
282	static void	442	static void
283	fd_change (int fd)	443	fd_change (EV_P_ int fd)
284	{	444	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	445	if (anfds [fd].reify)
286	return;	446	return;
287		447
288	anfds [fd].reify = 1;	448	anfds [fd].reify = 1;
289		449
290	++fdchangecnt;	450	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	451	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
292	fdchanges [fdchangecnt - 1] = fd;	452	fdchanges [fdchangecnt - 1] = fd;
293	}	453	}
294		454
295	static void	455	static void
296	fd_kill (int fd)	456	fd_kill (EV_P_ int fd)
297	{	457	{
298	struct ev_io *w;	458	struct ev_io *w;
299		459
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	460	while ((w = (struct ev_io *)anfds [fd].head))
302	{	461	{
303	ev_io_stop (w);	462	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	463	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	464	}
		465	}
		466
		467	static int
		468	fd_valid (int fd)
		469	{
		470	#ifdef _WIN32
		471	return _get_osfhandle (fd) != -1;
		472	#else
		473	return fcntl (fd, F_GETFD) != -1;
		474	#endif
306	}	475	}
307		476
308	/* called on EBADF to verify fds */	477	/* called on EBADF to verify fds */
309	static void	478	static void
310	fd_ebadf (void)	479	fd_ebadf (EV_P)
311	{	480	{
312	int fd;	481	int fd;
313		482
314	for (fd = 0; fd < anfdmax; ++fd)	483	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	484	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	485	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	486	fd_kill (EV_A_ fd);
318	}	487	}
319		488
320	/* called on ENOMEM in select/poll to kill some fds and retry */	489	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	490	static void
322	fd_enomem (void)	491	fd_enomem (EV_P)
323	{	492	{
324	int fd = anfdmax;	493	int fd;
325		494
326	while (fd--)	495	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	496	if (anfds [fd].events)
328	{	497	{
329	close (fd);
330	fd_kill (fd);	498	fd_kill (EV_A_ fd);
331	return;	499	return;
332	}	500	}
333	}	501	}
334		502
		503	/* usually called after fork if method needs to re-arm all fds from scratch */
		504	static void
		505	fd_rearm_all (EV_P)
		506	{
		507	int fd;
		508
		509	/* this should be highly optimised to not do anything but set a flag */
		510	for (fd = 0; fd < anfdmax; ++fd)
		511	if (anfds [fd].events)
		512	{
		513	anfds [fd].events = 0;
		514	fd_change (EV_A_ fd);
		515	}
		516	}
		517
335	/*****************************************************************************/	518	/*****************************************************************************/
336		519
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	520	static void
344	upheap (WT *timers, int k)	521	upheap (WT *heap, int k)
345	{	522	{
346	WT w = timers [k];	523	WT w = heap [k];
347		524
348	while (k && timers [k >> 1]->at > w->at)	525	while (k && heap [k >> 1]->at > w->at)
349	{	526	{
350	timers [k] = timers [k >> 1];	527	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	528	((W)heap [k])->active = k + 1;
352	k >>= 1;	529	k >>= 1;
353	}	530	}
354		531
355	timers [k] = w;	532	heap [k] = w;
356	timers [k]->active = k + 1;	533	((W)heap [k])->active = k + 1;
357		534
358	}	535	}
359		536
360	static void	537	static void
361	downheap (WT *timers, int N, int k)	538	downheap (WT *heap, int N, int k)
362	{	539	{
363	WT w = timers [k];	540	WT w = heap [k];
364		541
365	while (k < (N >> 1))	542	while (k < (N >> 1))
366	{	543	{
367	int j = k << 1;	544	int j = k << 1;
368		545
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	546	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	547	++j;
371		548
372	if (w->at <= timers [j]->at)	549	if (w->at <= heap [j]->at)
373	break;	550	break;
374		551
375	timers [k] = timers [j];	552	heap [k] = heap [j];
376	timers [k]->active = k + 1;	553	((W)heap [k])->active = k + 1;
377	k = j;	554	k = j;
378	}	555	}
379		556
380	timers [k] = w;	557	heap [k] = w;
381	timers [k]->active = k + 1;	558	((W)heap [k])->active = k + 1;
		559	}
		560
		561	inline void
		562	adjustheap (WT *heap, int N, int k)
		563	{
		564	upheap (heap, k);
		565	downheap (heap, N, k);
382	}	566	}
383		567
384	/*****************************************************************************/	568	/*****************************************************************************/
385		569
386	typedef struct	570	typedef struct
387	{	571	{
388	struct ev_signal *head;	572	WL head;
389	sig_atomic_t volatile gotsig;	573	sig_atomic_t volatile gotsig;
390	} ANSIG;	574	} ANSIG;
391		575
392	static ANSIG *signals;	576	static ANSIG *signals;
393	static int signalmax;	577	static int signalmax;
…		…
409	}	593	}
410		594
411	static void	595	static void
412	sighandler (int signum)	596	sighandler (int signum)
413	{	597	{
		598	#if _WIN32
		599	signal (signum, sighandler);
		600	#endif
		601
414	signals [signum - 1].gotsig = 1;	602	signals [signum - 1].gotsig = 1;
415		603
416	if (!gotsig)	604	if (!gotsig)
417	{	605	{
418	int old_errno = errno;	606	int old_errno = errno;
…		…
420	write (sigpipe [1], &signum, 1);	608	write (sigpipe [1], &signum, 1);
421	errno = old_errno;	609	errno = old_errno;
422	}	610	}
423	}	611	}
424		612
		613	void
		614	ev_feed_signal_event (EV_P_ int signum)
		615	{
		616	WL w;
		617
		618	#if EV_MULTIPLICITY
		619	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		620	#endif
		621
		622	--signum;
		623
		624	if (signum < 0 \|\| signum >= signalmax)
		625	return;
		626
		627	signals [signum].gotsig = 0;
		628
		629	for (w = signals [signum].head; w; w = w->next)
		630	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		631	}
		632
425	static void	633	static void
426	sigcb (struct ev_io *iow, int revents)	634	sigcb (EV_P_ struct ev_io *iow, int revents)
427	{	635	{
428	struct ev_signal *w;
429	int signum;	636	int signum;
430		637
431	read (sigpipe [0], &revents, 1);	638	read (sigpipe [0], &revents, 1);
432	gotsig = 0;	639	gotsig = 0;
433		640
434	for (signum = signalmax; signum--; )	641	for (signum = signalmax; signum--; )
435	if (signals [signum].gotsig)	642	if (signals [signum].gotsig)
436	{	643	ev_feed_signal_event (EV_A_ signum + 1);
437	signals [signum].gotsig = 0;
438
439	for (w = signals [signum].head; w; w = w->next)
440	event ((W)w, EV_SIGNAL);
441	}
442	}	644	}
443		645
444	static void	646	inline void
445	siginit (void)	647	fd_intern (int fd)
446	{	648	{
447	#ifndef WIN32	649	#ifdef _WIN32
		650	int arg = 1;
		651	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		652	#else
448	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	653	fcntl (fd, F_SETFD, FD_CLOEXEC);
449	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
450
451	/* rather than sort out wether we really need nb, set it */
452	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	654	fcntl (fd, F_SETFL, O_NONBLOCK);
453	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
454	#endif	655	#endif
		656	}
		657
		658	static void
		659	siginit (EV_P)
		660	{
		661	fd_intern (sigpipe [0]);
		662	fd_intern (sigpipe [1]);
455		663
456	ev_io_set (&sigev, sigpipe [0], EV_READ);	664	ev_io_set (&sigev, sigpipe [0], EV_READ);
457	ev_io_start (&sigev);	665	ev_io_start (EV_A_ &sigev);
		666	ev_unref (EV_A); /* child watcher should not keep loop alive */
458	}	667	}
459		668
460	/*****************************************************************************/	669	/*****************************************************************************/
461		670
462	static struct ev_idle **idles;
463	static int idlemax, idlecnt;
464
465	static struct ev_prepare **prepares;
466	static int preparemax, preparecnt;
467
468	static struct ev_check **checks;
469	static int checkmax, checkcnt;
470
471	/*****************************************************************************/
472
473	static struct ev_child *childs [PID_HASHSIZE];	671	static struct ev_child *childs [PID_HASHSIZE];
		672
		673	#ifndef _WIN32
		674
474	static struct ev_signal childev;	675	static struct ev_signal childev;
475
476	#ifndef WIN32
477		676
478	#ifndef WCONTINUED	677	#ifndef WCONTINUED
479	# define WCONTINUED 0	678	# define WCONTINUED 0
480	#endif	679	#endif
481		680
482	static void	681	static void
483	child_reap (struct ev_signal *sw, int chain, int pid, int status)	682	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
484	{	683	{
485	struct ev_child *w;	684	struct ev_child *w;
486		685
487	for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)	686	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
488	if (w->pid == pid \|\| !w->pid)	687	if (w->pid == pid \|\| !w->pid)
489	{	688	{
490	w->priority = sw->priority; /* need to do it now */	689	ev_priority (w) = ev_priority (sw); /* need to do it now */
491	w->rpid = pid;	690	w->rpid = pid;
492	w->rstatus = status;	691	w->rstatus = status;
493	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
494	event ((W)w, EV_CHILD);	692	ev_feed_event (EV_A_ (W)w, EV_CHILD);
495	}	693	}
496	}	694	}
497		695
498	static void	696	static void
499	childcb (struct ev_signal *sw, int revents)	697	childcb (EV_P_ struct ev_signal *sw, int revents)
500	{	698	{
501	int pid, status;	699	int pid, status;
502		700
503	printf ("chld %x\n", revents);//D
504	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	701	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
505	{	702	{
506	/* make sure we are called again until all childs have been reaped */	703	/* make sure we are called again until all childs have been reaped */
507	event ((W)sw, EV_SIGNAL);	704	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
508		705
509	child_reap (sw, pid, pid, status);	706	child_reap (EV_A_ sw, pid, pid, status);
510	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	707	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
511	}	708	}
512	}	709	}
513		710
514	#endif	711	#endif
515		712
…		…
538	ev_version_minor (void)	735	ev_version_minor (void)
539	{	736	{
540	return EV_VERSION_MINOR;	737	return EV_VERSION_MINOR;
541	}	738	}
542		739
543	/* return true if we are running with elevated privileges and ignore env variables */	740	/* return true if we are running with elevated privileges and should ignore env variables */
544	static int	741	static int
545	enable_secure ()	742	enable_secure (void)
546	{	743	{
		744	#ifdef _WIN32
		745	return 0;
		746	#else
547	return getuid () != geteuid ()	747	return getuid () != geteuid ()
548	\|\| getgid () != getegid ();	748	\|\| getgid () != getegid ();
		749	#endif
549	}	750	}
550		751
551	int ev_init (int methods)	752	unsigned int
		753	ev_method (EV_P)
552	{	754	{
		755	return method;
		756	}
		757
		758	static void
		759	loop_init (EV_P_ unsigned int flags)
		760	{
553	if (!ev_method)	761	if (!method)
554	{	762	{
555	#if EV_USE_MONOTONIC	763	#if EV_USE_MONOTONIC
556	{	764	{
557	struct timespec ts;	765	struct timespec ts;
558	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	766	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
559	have_monotonic = 1;	767	have_monotonic = 1;
560	}	768	}
561	#endif	769	#endif
562		770
563	ev_now = ev_time ();	771	ev_rt_now = ev_time ();
564	now = get_clock ();	772	mn_now = get_clock ();
565	now_floor = now;	773	now_floor = mn_now;
566	diff = ev_now - now;	774	rtmn_diff = ev_rt_now - mn_now;
567		775
568	if (pipe (sigpipe))	776	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
569	return 0;
570
571	if (methods == EVMETHOD_AUTO)
572	if (!enable_secure () && getenv ("LIBEV_METHODS"))
573	methods = atoi (getenv ("LIBEV_METHODS"));	777	flags = atoi (getenv ("LIBEV_FLAGS"));
574	else
575	methods = EVMETHOD_ANY;
576		778
		779	if (!(flags & 0x0000ffff))
		780	flags \|= 0x0000ffff;
		781
577	ev_method = 0;	782	method = 0;
578	#if EV_USE_KQUEUE	783	#if EV_USE_KQUEUE
579	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	784	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
580	#endif	785	#endif
581	#if EV_USE_EPOLL	786	#if EV_USE_EPOLL
582	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	787	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
583	#endif	788	#endif
584	#if EV_USE_POLL	789	#if EV_USE_POLL
585	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	790	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
586	#endif	791	#endif
587	#if EV_USE_SELECT	792	#if EV_USE_SELECT
588	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	793	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
589	#endif	794	#endif
590		795
		796	ev_init (&sigev, sigcb);
		797	ev_set_priority (&sigev, EV_MAXPRI);
		798	}
		799	}
		800
		801	void
		802	loop_destroy (EV_P)
		803	{
		804	int i;
		805
		806	#if EV_USE_KQUEUE
		807	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		808	#endif
		809	#if EV_USE_EPOLL
		810	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		811	#endif
		812	#if EV_USE_POLL
		813	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		814	#endif
		815	#if EV_USE_SELECT
		816	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		817	#endif
		818
		819	for (i = NUMPRI; i--; )
		820	array_free (pending, [i]);
		821
		822	/* have to use the microsoft-never-gets-it-right macro */
		823	array_free (fdchange, EMPTY0);
		824	array_free (timer, EMPTY0);
		825	#if EV_PERIODICS
		826	array_free (periodic, EMPTY0);
		827	#endif
		828	array_free (idle, EMPTY0);
		829	array_free (prepare, EMPTY0);
		830	array_free (check, EMPTY0);
		831
		832	method = 0;
		833	}
		834
		835	static void
		836	loop_fork (EV_P)
		837	{
		838	#if EV_USE_EPOLL
		839	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		840	#endif
		841	#if EV_USE_KQUEUE
		842	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		843	#endif
		844
		845	if (ev_is_active (&sigev))
		846	{
		847	/* default loop */
		848
		849	ev_ref (EV_A);
		850	ev_io_stop (EV_A_ &sigev);
		851	close (sigpipe [0]);
		852	close (sigpipe [1]);
		853
		854	while (pipe (sigpipe))
		855	syserr ("(libev) error creating pipe");
		856
		857	siginit (EV_A);
		858	}
		859
		860	postfork = 0;
		861	}
		862
		863	#if EV_MULTIPLICITY
		864	struct ev_loop *
		865	ev_loop_new (unsigned int flags)
		866	{
		867	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		868
		869	memset (loop, 0, sizeof (struct ev_loop));
		870
		871	loop_init (EV_A_ flags);
		872
		873	if (ev_method (EV_A))
		874	return loop;
		875
		876	return 0;
		877	}
		878
		879	void
		880	ev_loop_destroy (EV_P)
		881	{
		882	loop_destroy (EV_A);
		883	ev_free (loop);
		884	}
		885
		886	void
		887	ev_loop_fork (EV_P)
		888	{
		889	postfork = 1;
		890	}
		891
		892	#endif
		893
		894	#if EV_MULTIPLICITY
		895	struct ev_loop *
		896	ev_default_loop_ (unsigned int flags)
		897	#else
		898	int
		899	ev_default_loop (unsigned int flags)
		900	#endif
		901	{
		902	if (sigpipe [0] == sigpipe [1])
		903	if (pipe (sigpipe))
		904	return 0;
		905
		906	if (!ev_default_loop_ptr)
		907	{
		908	#if EV_MULTIPLICITY
		909	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
		910	#else
		911	ev_default_loop_ptr = 1;
		912	#endif
		913
		914	loop_init (EV_A_ flags);
		915
591	if (ev_method)	916	if (ev_method (EV_A))
592	{	917	{
593	ev_watcher_init (&sigev, sigcb);
594	ev_set_priority (&sigev, EV_MAXPRI);
595	siginit ();	918	siginit (EV_A);
596		919
597	#ifndef WIN32	920	#ifndef _WIN32
598	ev_signal_init (&childev, childcb, SIGCHLD);	921	ev_signal_init (&childev, childcb, SIGCHLD);
599	ev_set_priority (&childev, EV_MAXPRI);	922	ev_set_priority (&childev, EV_MAXPRI);
600	ev_signal_start (&childev);	923	ev_signal_start (EV_A_ &childev);
		924	ev_unref (EV_A); /* child watcher should not keep loop alive */
601	#endif	925	#endif
602	}	926	}
		927	else
		928	ev_default_loop_ptr = 0;
603	}	929	}
604		930
605	return ev_method;	931	return ev_default_loop_ptr;
		932	}
		933
		934	void
		935	ev_default_destroy (void)
		936	{
		937	#if EV_MULTIPLICITY
		938	struct ev_loop *loop = ev_default_loop_ptr;
		939	#endif
		940
		941	#ifndef _WIN32
		942	ev_ref (EV_A); /* child watcher */
		943	ev_signal_stop (EV_A_ &childev);
		944	#endif
		945
		946	ev_ref (EV_A); /* signal watcher */
		947	ev_io_stop (EV_A_ &sigev);
		948
		949	close (sigpipe [0]); sigpipe [0] = 0;
		950	close (sigpipe [1]); sigpipe [1] = 0;
		951
		952	loop_destroy (EV_A);
		953	}
		954
		955	void
		956	ev_default_fork (void)
		957	{
		958	#if EV_MULTIPLICITY
		959	struct ev_loop *loop = ev_default_loop_ptr;
		960	#endif
		961
		962	if (method)
		963	postfork = 1;
606	}	964	}
607		965
608	/*****************************************************************************/	966	/*****************************************************************************/
609		967
610	void
611	ev_fork_prepare (void)
612	{
613	/* nop */
614	}
615
616	void
617	ev_fork_parent (void)
618	{
619	/* nop */
620	}
621
622	void
623	ev_fork_child (void)
624	{
625	#if EV_USE_EPOLL
626	if (ev_method == EVMETHOD_EPOLL)
627	epoll_postfork_child ();
628	#endif
629
630	ev_io_stop (&sigev);
631	close (sigpipe [0]);
632	close (sigpipe [1]);
633	pipe (sigpipe);
634	siginit ();
635	}
636
637	/*****************************************************************************/
638
639	static void	968	static int
		969	any_pending (EV_P)
		970	{
		971	int pri;
		972
		973	for (pri = NUMPRI; pri--; )
		974	if (pendingcnt [pri])
		975	return 1;
		976
		977	return 0;
		978	}
		979
		980	static void
640	call_pending (void)	981	call_pending (EV_P)
641	{	982	{
642	int pri;	983	int pri;
643		984
644	for (pri = NUMPRI; pri--; )	985	for (pri = NUMPRI; pri--; )
645	while (pendingcnt [pri])	986	while (pendingcnt [pri])
…		…
647	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	988	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
648		989
649	if (p->w)	990	if (p->w)
650	{	991	{
651	p->w->pending = 0;	992	p->w->pending = 0;
652	p->w->cb (p->w, p->events);	993	EV_CB_INVOKE (p->w, p->events);
653	}	994	}
654	}	995	}
655	}	996	}
656		997
657	static void	998	static void
658	timers_reify (void)	999	timers_reify (EV_P)
659	{	1000	{
660	while (timercnt && timers [0]->at <= now)	1001	while (timercnt && ((WT)timers [0])->at <= mn_now)
661	{	1002	{
662	struct ev_timer *w = timers [0];	1003	struct ev_timer *w = timers [0];
		1004
		1005	assert (("inactive timer on timer heap detected", ev_is_active (w)));
663		1006
664	/* first reschedule or stop timer */	1007	/* first reschedule or stop timer */
665	if (w->repeat)	1008	if (w->repeat)
666	{	1009	{
667	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1010	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1011
668	w->at = now + w->repeat;	1012	((WT)w)->at += w->repeat;
		1013	if (((WT)w)->at < mn_now)
		1014	((WT)w)->at = mn_now;
		1015
669	downheap ((WT *)timers, timercnt, 0);	1016	downheap ((WT *)timers, timercnt, 0);
670	}	1017	}
671	else	1018	else
672	ev_timer_stop (w); /* nonrepeating: stop timer */	1019	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
673		1020
674	event ((W)w, EV_TIMEOUT);	1021	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
675	}	1022	}
676	}	1023	}
677		1024
		1025	#if EV_PERIODICS
678	static void	1026	static void
679	periodics_reify (void)	1027	periodics_reify (EV_P)
680	{	1028	{
681	while (periodiccnt && periodics [0]->at <= ev_now)	1029	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
682	{	1030	{
683	struct ev_periodic *w = periodics [0];	1031	struct ev_periodic *w = periodics [0];
684		1032
		1033	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1034
685	/* first reschedule or stop timer */	1035	/* first reschedule or stop timer */
686	if (w->interval)	1036	if (w->reschedule_cb)
687	{	1037	{
		1038	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1039	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1040	downheap ((WT *)periodics, periodiccnt, 0);
		1041	}
		1042	else if (w->interval)
		1043	{
688	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1044	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
689	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1045	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
690	downheap ((WT *)periodics, periodiccnt, 0);	1046	downheap ((WT *)periodics, periodiccnt, 0);
691	}	1047	}
692	else	1048	else
693	ev_periodic_stop (w); /* nonrepeating: stop timer */	1049	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
694		1050
695	event ((W)w, EV_PERIODIC);	1051	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
696	}	1052	}
697	}	1053	}
698		1054
699	static void	1055	static void
700	periodics_reschedule (ev_tstamp diff)	1056	periodics_reschedule (EV_P)
701	{	1057	{
702	int i;	1058	int i;
703		1059
704	/* adjust periodics after time jump */	1060	/* adjust periodics after time jump */
705	for (i = 0; i < periodiccnt; ++i)	1061	for (i = 0; i < periodiccnt; ++i)
706	{	1062	{
707	struct ev_periodic *w = periodics [i];	1063	struct ev_periodic *w = periodics [i];
708		1064
		1065	if (w->reschedule_cb)
		1066	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
709	if (w->interval)	1067	else if (w->interval)
710	{
711	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1068	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
712
713	if (fabs (diff) >= 1e-4)
714	{
715	ev_periodic_stop (w);
716	ev_periodic_start (w);
717
718	i = 0; /* restart loop, inefficient, but time jumps should be rare */
719	}
720	}
721	}	1069	}
722	}
723		1070
724	static int	1071	/* now rebuild the heap */
		1072	for (i = periodiccnt >> 1; i--; )
		1073	downheap ((WT *)periodics, periodiccnt, i);
		1074	}
		1075	#endif
		1076
		1077	inline int
725	time_update_monotonic (void)	1078	time_update_monotonic (EV_P)
726	{	1079	{
727	now = get_clock ();	1080	mn_now = get_clock ();
728		1081
729	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1082	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
730	{	1083	{
731	ev_now = now + diff;	1084	ev_rt_now = rtmn_diff + mn_now;
732	return 0;	1085	return 0;
733	}	1086	}
734	else	1087	else
735	{	1088	{
736	now_floor = now;	1089	now_floor = mn_now;
737	ev_now = ev_time ();	1090	ev_rt_now = ev_time ();
738	return 1;	1091	return 1;
739	}	1092	}
740	}	1093	}
741		1094
742	static void	1095	static void
743	time_update (void)	1096	time_update (EV_P)
744	{	1097	{
745	int i;	1098	int i;
746		1099
747	#if EV_USE_MONOTONIC	1100	#if EV_USE_MONOTONIC
748	if (expect_true (have_monotonic))	1101	if (expect_true (have_monotonic))
749	{	1102	{
750	if (time_update_monotonic ())	1103	if (time_update_monotonic (EV_A))
751	{	1104	{
752	ev_tstamp odiff = diff;	1105	ev_tstamp odiff = rtmn_diff;
753		1106
754	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1107	for (i = 4; --i; ) /* loop a few times, before making important decisions */
755	{	1108	{
756	diff = ev_now - now;	1109	rtmn_diff = ev_rt_now - mn_now;
757		1110
758	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1111	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
759	return; /* all is well */	1112	return; /* all is well */
760		1113
761	ev_now = ev_time ();	1114	ev_rt_now = ev_time ();
762	now = get_clock ();	1115	mn_now = get_clock ();
763	now_floor = now;	1116	now_floor = mn_now;
764	}	1117	}
765		1118
		1119	# if EV_PERIODICS
766	periodics_reschedule (diff - odiff);	1120	periodics_reschedule (EV_A);
		1121	# endif
767	/* no timer adjustment, as the monotonic clock doesn't jump */	1122	/* no timer adjustment, as the monotonic clock doesn't jump */
		1123	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
768	}	1124	}
769	}	1125	}
770	else	1126	else
771	#endif	1127	#endif
772	{	1128	{
773	ev_now = ev_time ();	1129	ev_rt_now = ev_time ();
774		1130
775	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1131	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
776	{	1132	{
		1133	#if EV_PERIODICS
777	periodics_reschedule (ev_now - now);	1134	periodics_reschedule (EV_A);
		1135	#endif
778		1136
779	/* adjust timers. this is easy, as the offset is the same for all */	1137	/* adjust timers. this is easy, as the offset is the same for all */
780	for (i = 0; i < timercnt; ++i)	1138	for (i = 0; i < timercnt; ++i)
781	timers [i]->at += diff;	1139	((WT)timers [i])->at += ev_rt_now - mn_now;
782	}	1140	}
783		1141
784	now = ev_now;	1142	mn_now = ev_rt_now;
785	}	1143	}
786	}	1144	}
787		1145
788	int ev_loop_done;	1146	void
		1147	ev_ref (EV_P)
		1148	{
		1149	++activecnt;
		1150	}
789		1151
		1152	void
		1153	ev_unref (EV_P)
		1154	{
		1155	--activecnt;
		1156	}
		1157
		1158	static int loop_done;
		1159
		1160	void
790	void ev_loop (int flags)	1161	ev_loop (EV_P_ int flags)
791	{	1162	{
792	double block;	1163	double block;
793	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1164	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
794		1165
795	do	1166	while (activecnt)
796	{	1167	{
797	/* queue check watchers (and execute them) */	1168	/* queue check watchers (and execute them) */
798	if (expect_false (preparecnt))	1169	if (expect_false (preparecnt))
799	{	1170	{
800	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1171	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
801	call_pending ();	1172	call_pending (EV_A);
802	}	1173	}
803		1174
		1175	/* we might have forked, so reify kernel state if necessary */
		1176	if (expect_false (postfork))
		1177	loop_fork (EV_A);
		1178
804	/* update fd-related kernel structures */	1179	/* update fd-related kernel structures */
805	fd_reify ();	1180	fd_reify (EV_A);
806		1181
807	/* calculate blocking time */	1182	/* calculate blocking time */
808		1183
809	/* we only need this for !monotonic clockor timers, but as we basically	1184	/* we only need this for !monotonic clock or timers, but as we basically
810	always have timers, we just calculate it always */	1185	always have timers, we just calculate it always */
811	#if EV_USE_MONOTONIC	1186	#if EV_USE_MONOTONIC
812	if (expect_true (have_monotonic))	1187	if (expect_true (have_monotonic))
813	time_update_monotonic ();	1188	time_update_monotonic (EV_A);
814	else	1189	else
815	#endif	1190	#endif
816	{	1191	{
817	ev_now = ev_time ();	1192	ev_rt_now = ev_time ();
818	now = ev_now;	1193	mn_now = ev_rt_now;
819	}	1194	}
820		1195
821	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1196	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
822	block = 0.;	1197	block = 0.;
823	else	1198	else
824	{	1199	{
825	block = MAX_BLOCKTIME;	1200	block = MAX_BLOCKTIME;
826		1201
827	if (timercnt)	1202	if (timercnt)
828	{	1203	{
829	ev_tstamp to = timers [0]->at - now + method_fudge;	1204	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
830	if (block > to) block = to;	1205	if (block > to) block = to;
831	}	1206	}
832		1207
		1208	#if EV_PERIODICS
833	if (periodiccnt)	1209	if (periodiccnt)
834	{	1210	{
835	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1211	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
836	if (block > to) block = to;	1212	if (block > to) block = to;
837	}	1213	}
		1214	#endif
838		1215
839	if (block < 0.) block = 0.;	1216	if (block < 0.) block = 0.;
840	}	1217	}
841		1218
842	method_poll (block);	1219	method_poll (EV_A_ block);
843		1220
844	/* update ev_now, do magic */	1221	/* update ev_rt_now, do magic */
845	time_update ();	1222	time_update (EV_A);
846		1223
847	/* queue pending timers and reschedule them */	1224	/* queue pending timers and reschedule them */
848	timers_reify (); /* relative timers called last */	1225	timers_reify (EV_A); /* relative timers called last */
		1226	#if EV_PERIODICS
849	periodics_reify (); /* absolute timers called first */	1227	periodics_reify (EV_A); /* absolute timers called first */
		1228	#endif
850		1229
851	/* queue idle watchers unless io or timers are pending */	1230	/* queue idle watchers unless io or timers are pending */
852	if (!pendingcnt)	1231	if (idlecnt && !any_pending (EV_A))
853	queue_events ((W *)idles, idlecnt, EV_IDLE);	1232	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
854		1233
855	/* queue check watchers, to be executed first */	1234	/* queue check watchers, to be executed first */
856	if (checkcnt)	1235	if (checkcnt)
857	queue_events ((W *)checks, checkcnt, EV_CHECK);	1236	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
858		1237
859	call_pending ();	1238	call_pending (EV_A);
860	}
861	while (!ev_loop_done);
862		1239
		1240	if (loop_done)
		1241	break;
		1242	}
		1243
863	if (ev_loop_done != 2)	1244	if (loop_done != 2)
864	ev_loop_done = 0;	1245	loop_done = 0;
		1246	}
		1247
		1248	void
		1249	ev_unloop (EV_P_ int how)
		1250	{
		1251	loop_done = how;
865	}	1252	}
866		1253
867	/*****************************************************************************/	1254	/*****************************************************************************/
868		1255
869	static void	1256	inline void
870	wlist_add (WL *head, WL elem)	1257	wlist_add (WL *head, WL elem)
871	{	1258	{
872	elem->next = *head;	1259	elem->next = *head;
873	*head = elem;	1260	*head = elem;
874	}	1261	}
875		1262
876	static void	1263	inline void
877	wlist_del (WL *head, WL elem)	1264	wlist_del (WL *head, WL elem)
878	{	1265	{
879	while (*head)	1266	while (*head)
880	{	1267	{
881	if (*head == elem)	1268	if (*head == elem)
…		…
886		1273
887	head = &(*head)->next;	1274	head = &(*head)->next;
888	}	1275	}
889	}	1276	}
890		1277
891	static void	1278	inline void
892	ev_clear_pending (W w)	1279	ev_clear_pending (EV_P_ W w)
893	{	1280	{
894	if (w->pending)	1281	if (w->pending)
895	{	1282	{
896	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1283	pendings [ABSPRI (w)][w->pending - 1].w = 0;
897	w->pending = 0;	1284	w->pending = 0;
898	}	1285	}
899	}	1286	}
900		1287
901	static void	1288	inline void
902	ev_start (W w, int active)	1289	ev_start (EV_P_ W w, int active)
903	{	1290	{
904	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1291	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
905	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1292	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
906		1293
907	w->active = active;	1294	w->active = active;
		1295	ev_ref (EV_A);
908	}	1296	}
909		1297
910	static void	1298	inline void
911	ev_stop (W w)	1299	ev_stop (EV_P_ W w)
912	{	1300	{
		1301	ev_unref (EV_A);
913	w->active = 0;	1302	w->active = 0;
914	}	1303	}
915		1304
916	/*****************************************************************************/	1305	/*****************************************************************************/
917		1306
918	void	1307	void
919	ev_io_start (struct ev_io *w)	1308	ev_io_start (EV_P_ struct ev_io *w)
920	{	1309	{
921	int fd = w->fd;	1310	int fd = w->fd;
922		1311
923	if (ev_is_active (w))	1312	if (ev_is_active (w))
924	return;	1313	return;
925		1314
926	assert (("ev_io_start called with negative fd", fd >= 0));	1315	assert (("ev_io_start called with negative fd", fd >= 0));
927		1316
928	ev_start ((W)w, 1);	1317	ev_start (EV_A_ (W)w, 1);
929	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1318	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
930	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1319	wlist_add ((WL *)&anfds[fd].head, (WL)w);
931		1320
932	fd_change (fd);	1321	fd_change (EV_A_ fd);
933	}	1322	}
934		1323
935	void	1324	void
936	ev_io_stop (struct ev_io *w)	1325	ev_io_stop (EV_P_ struct ev_io *w)
937	{	1326	{
938	ev_clear_pending ((W)w);	1327	ev_clear_pending (EV_A_ (W)w);
939	if (!ev_is_active (w))	1328	if (!ev_is_active (w))
940	return;	1329	return;
941		1330
		1331	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1332
942	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1333	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
943	ev_stop ((W)w);	1334	ev_stop (EV_A_ (W)w);
944		1335
945	fd_change (w->fd);	1336	fd_change (EV_A_ w->fd);
946	}	1337	}
947		1338
948	void	1339	void
949	ev_timer_start (struct ev_timer *w)	1340	ev_timer_start (EV_P_ struct ev_timer *w)
950	{	1341	{
951	if (ev_is_active (w))	1342	if (ev_is_active (w))
952	return;	1343	return;
953		1344
954	w->at += now;	1345	((WT)w)->at += mn_now;
955		1346
956	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1347	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
957		1348
958	ev_start ((W)w, ++timercnt);	1349	ev_start (EV_A_ (W)w, ++timercnt);
959	array_needsize (timers, timermax, timercnt, );	1350	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
960	timers [timercnt - 1] = w;	1351	timers [timercnt - 1] = w;
961	upheap ((WT *)timers, timercnt - 1);	1352	upheap ((WT *)timers, timercnt - 1);
962	}
963		1353
		1354	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1355	}
		1356
964	void	1357	void
965	ev_timer_stop (struct ev_timer *w)	1358	ev_timer_stop (EV_P_ struct ev_timer *w)
966	{	1359	{
967	ev_clear_pending ((W)w);	1360	ev_clear_pending (EV_A_ (W)w);
968	if (!ev_is_active (w))	1361	if (!ev_is_active (w))
969	return;	1362	return;
970		1363
		1364	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1365
971	if (w->active < timercnt--)	1366	if (((W)w)->active < timercnt--)
972	{	1367	{
973	timers [w->active - 1] = timers [timercnt];	1368	timers [((W)w)->active - 1] = timers [timercnt];
974	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
975	}	1370	}
976		1371
977	w->at = w->repeat;	1372	((WT)w)->at -= mn_now;
978		1373
979	ev_stop ((W)w);	1374	ev_stop (EV_A_ (W)w);
980	}	1375	}
981		1376
982	void	1377	void
983	ev_timer_again (struct ev_timer *w)	1378	ev_timer_again (EV_P_ struct ev_timer *w)
984	{	1379	{
985	if (ev_is_active (w))	1380	if (ev_is_active (w))
986	{	1381	{
987	if (w->repeat)	1382	if (w->repeat)
988	{	1383	{
989	w->at = now + w->repeat;	1384	((WT)w)->at = mn_now + w->repeat;
990	downheap ((WT *)timers, timercnt, w->active - 1);	1385	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
991	}	1386	}
992	else	1387	else
993	ev_timer_stop (w);	1388	ev_timer_stop (EV_A_ w);
994	}	1389	}
995	else if (w->repeat)	1390	else if (w->repeat)
		1391	{
		1392	w->at = w->repeat;
996	ev_timer_start (w);	1393	ev_timer_start (EV_A_ w);
		1394	}
997	}	1395	}
998		1396
		1397	#if EV_PERIODICS
999	void	1398	void
1000	ev_periodic_start (struct ev_periodic *w)	1399	ev_periodic_start (EV_P_ struct ev_periodic *w)
1001	{	1400	{
1002	if (ev_is_active (w))	1401	if (ev_is_active (w))
1003	return;	1402	return;
1004		1403
		1404	if (w->reschedule_cb)
		1405	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1406	else if (w->interval)
		1407	{
1005	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1408	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1006
1007	/* this formula differs from the one in periodic_reify because we do not always round up */	1409	/* this formula differs from the one in periodic_reify because we do not always round up */
1008	if (w->interval)
1009	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1410	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1411	}
1010		1412
1011	ev_start ((W)w, ++periodiccnt);	1413	ev_start (EV_A_ (W)w, ++periodiccnt);
1012	array_needsize (periodics, periodicmax, periodiccnt, );	1414	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1013	periodics [periodiccnt - 1] = w;	1415	periodics [periodiccnt - 1] = w;
1014	upheap ((WT *)periodics, periodiccnt - 1);	1416	upheap ((WT *)periodics, periodiccnt - 1);
1015	}
1016		1417
		1418	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1419	}
		1420
1017	void	1421	void
1018	ev_periodic_stop (struct ev_periodic *w)	1422	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1019	{	1423	{
1020	ev_clear_pending ((W)w);	1424	ev_clear_pending (EV_A_ (W)w);
1021	if (!ev_is_active (w))	1425	if (!ev_is_active (w))
1022	return;	1426	return;
1023		1427
		1428	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1429
1024	if (w->active < periodiccnt--)	1430	if (((W)w)->active < periodiccnt--)
1025	{	1431	{
1026	periodics [w->active - 1] = periodics [periodiccnt];	1432	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1027	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1433	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1028	}	1434	}
1029		1435
1030	ev_stop ((W)w);	1436	ev_stop (EV_A_ (W)w);
		1437	}
		1438
		1439	void
		1440	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1441	{
		1442	/* TODO: use adjustheap and recalculation */
		1443	ev_periodic_stop (EV_A_ w);
		1444	ev_periodic_start (EV_A_ w);
		1445	}
		1446	#endif
		1447
		1448	void
		1449	ev_idle_start (EV_P_ struct ev_idle *w)
		1450	{
		1451	if (ev_is_active (w))
		1452	return;
		1453
		1454	ev_start (EV_A_ (W)w, ++idlecnt);
		1455	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1456	idles [idlecnt - 1] = w;
		1457	}
		1458
		1459	void
		1460	ev_idle_stop (EV_P_ struct ev_idle *w)
		1461	{
		1462	ev_clear_pending (EV_A_ (W)w);
		1463	if (!ev_is_active (w))
		1464	return;
		1465
		1466	idles [((W)w)->active - 1] = idles [--idlecnt];
		1467	ev_stop (EV_A_ (W)w);
		1468	}
		1469
		1470	void
		1471	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1472	{
		1473	if (ev_is_active (w))
		1474	return;
		1475
		1476	ev_start (EV_A_ (W)w, ++preparecnt);
		1477	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1478	prepares [preparecnt - 1] = w;
		1479	}
		1480
		1481	void
		1482	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1483	{
		1484	ev_clear_pending (EV_A_ (W)w);
		1485	if (!ev_is_active (w))
		1486	return;
		1487
		1488	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1489	ev_stop (EV_A_ (W)w);
		1490	}
		1491
		1492	void
		1493	ev_check_start (EV_P_ struct ev_check *w)
		1494	{
		1495	if (ev_is_active (w))
		1496	return;
		1497
		1498	ev_start (EV_A_ (W)w, ++checkcnt);
		1499	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
		1500	checks [checkcnt - 1] = w;
		1501	}
		1502
		1503	void
		1504	ev_check_stop (EV_P_ struct ev_check *w)
		1505	{
		1506	ev_clear_pending (EV_A_ (W)w);
		1507	if (!ev_is_active (w))
		1508	return;
		1509
		1510	checks [((W)w)->active - 1] = checks [--checkcnt];
		1511	ev_stop (EV_A_ (W)w);
1031	}	1512	}
1032		1513
1033	#ifndef SA_RESTART	1514	#ifndef SA_RESTART
1034	# define SA_RESTART 0	1515	# define SA_RESTART 0
1035	#endif	1516	#endif
1036		1517
1037	void	1518	void
1038	ev_signal_start (struct ev_signal *w)	1519	ev_signal_start (EV_P_ struct ev_signal *w)
1039	{	1520	{
		1521	#if EV_MULTIPLICITY
		1522	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1523	#endif
1040	if (ev_is_active (w))	1524	if (ev_is_active (w))
1041	return;	1525	return;
1042		1526
1043	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1527	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1044		1528
1045	ev_start ((W)w, 1);	1529	ev_start (EV_A_ (W)w, 1);
1046	array_needsize (signals, signalmax, w->signum, signals_init);	1530	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1047	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1531	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1048		1532
1049	if (!w->next)	1533	if (!((WL)w)->next)
1050	{	1534	{
		1535	#if _WIN32
		1536	signal (w->signum, sighandler);
		1537	#else
1051	struct sigaction sa;	1538	struct sigaction sa;
1052	sa.sa_handler = sighandler;	1539	sa.sa_handler = sighandler;
1053	sigfillset (&sa.sa_mask);	1540	sigfillset (&sa.sa_mask);
1054	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1541	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1055	sigaction (w->signum, &sa, 0);	1542	sigaction (w->signum, &sa, 0);
		1543	#endif
1056	}	1544	}
1057	}	1545	}
1058		1546
1059	void	1547	void
1060	ev_signal_stop (struct ev_signal *w)	1548	ev_signal_stop (EV_P_ struct ev_signal *w)
1061	{	1549	{
1062	ev_clear_pending ((W)w);	1550	ev_clear_pending (EV_A_ (W)w);
1063	if (!ev_is_active (w))	1551	if (!ev_is_active (w))
1064	return;	1552	return;
1065		1553
1066	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1554	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1067	ev_stop ((W)w);	1555	ev_stop (EV_A_ (W)w);
1068		1556
1069	if (!signals [w->signum - 1].head)	1557	if (!signals [w->signum - 1].head)
1070	signal (w->signum, SIG_DFL);	1558	signal (w->signum, SIG_DFL);
1071	}	1559	}
1072		1560
1073	void	1561	void
1074	ev_idle_start (struct ev_idle *w)	1562	ev_child_start (EV_P_ struct ev_child *w)
1075	{	1563	{
		1564	#if EV_MULTIPLICITY
		1565	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1566	#endif
1076	if (ev_is_active (w))	1567	if (ev_is_active (w))
1077	return;	1568	return;
1078		1569
1079	ev_start ((W)w, ++idlecnt);
1080	array_needsize (idles, idlemax, idlecnt, );
1081	idles [idlecnt - 1] = w;
1082	}
1083
1084	void
1085	ev_idle_stop (struct ev_idle *w)
1086	{
1087	ev_clear_pending ((W)w);
1088	if (ev_is_active (w))
1089	return;
1090
1091	idles [w->active - 1] = idles [--idlecnt];
1092	ev_stop ((W)w);
1093	}
1094
1095	void
1096	ev_prepare_start (struct ev_prepare *w)
1097	{
1098	if (ev_is_active (w))
1099	return;
1100
1101	ev_start ((W)w, ++preparecnt);
1102	array_needsize (prepares, preparemax, preparecnt, );
1103	prepares [preparecnt - 1] = w;
1104	}
1105
1106	void
1107	ev_prepare_stop (struct ev_prepare *w)
1108	{
1109	ev_clear_pending ((W)w);
1110	if (ev_is_active (w))
1111	return;
1112
1113	prepares [w->active - 1] = prepares [--preparecnt];
1114	ev_stop ((W)w);
1115	}
1116
1117	void
1118	ev_check_start (struct ev_check *w)
1119	{
1120	if (ev_is_active (w))
1121	return;
1122
1123	ev_start ((W)w, ++checkcnt);
1124	array_needsize (checks, checkmax, checkcnt, );
1125	checks [checkcnt - 1] = w;
1126	}
1127
1128	void
1129	ev_check_stop (struct ev_check *w)
1130	{
1131	ev_clear_pending ((W)w);
1132	if (ev_is_active (w))
1133	return;
1134
1135	checks [w->active - 1] = checks [--checkcnt];
1136	ev_stop ((W)w);
1137	}
1138
1139	void
1140	ev_child_start (struct ev_child *w)
1141	{
1142	if (ev_is_active (w))
1143	return;
1144
1145	ev_start ((W)w, 1);	1570	ev_start (EV_A_ (W)w, 1);
1146	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1571	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1147	}	1572	}
1148		1573
1149	void	1574	void
1150	ev_child_stop (struct ev_child *w)	1575	ev_child_stop (EV_P_ struct ev_child *w)
1151	{	1576	{
1152	ev_clear_pending ((W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1153	if (ev_is_active (w))	1578	if (!ev_is_active (w))
1154	return;	1579	return;
1155		1580
1156	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1581	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1157	ev_stop ((W)w);	1582	ev_stop (EV_A_ (W)w);
1158	}	1583	}
1159		1584
1160	/*****************************************************************************/	1585	/*****************************************************************************/
1161		1586
1162	struct ev_once	1587	struct ev_once
…		…
1166	void (cb)(int revents, void arg);	1591	void (cb)(int revents, void arg);
1167	void *arg;	1592	void *arg;
1168	};	1593	};
1169		1594
1170	static void	1595	static void
1171	once_cb (struct ev_once *once, int revents)	1596	once_cb (EV_P_ struct ev_once *once, int revents)
1172	{	1597	{
1173	void (cb)(int revents, void arg) = once->cb;	1598	void (cb)(int revents, void arg) = once->cb;
1174	void *arg = once->arg;	1599	void *arg = once->arg;
1175		1600
1176	ev_io_stop (&once->io);	1601	ev_io_stop (EV_A_ &once->io);
1177	ev_timer_stop (&once->to);	1602	ev_timer_stop (EV_A_ &once->to);
1178	free (once);	1603	ev_free (once);
1179		1604
1180	cb (revents, arg);	1605	cb (revents, arg);
1181	}	1606	}
1182		1607
1183	static void	1608	static void
1184	once_cb_io (struct ev_io *w, int revents)	1609	once_cb_io (EV_P_ struct ev_io *w, int revents)
1185	{	1610	{
1186	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1611	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1187	}	1612	}
1188		1613
1189	static void	1614	static void
1190	once_cb_to (struct ev_timer *w, int revents)	1615	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1191	{	1616	{
1192	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1617	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1193	}	1618	}
1194		1619
1195	void	1620	void
1196	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1621	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1197	{	1622	{
1198	struct ev_once *once = malloc (sizeof (struct ev_once));	1623	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1199		1624
1200	if (!once)	1625	if (!once)
1201	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1626	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1202	else	1627	else
1203	{	1628	{
1204	once->cb = cb;	1629	once->cb = cb;
1205	once->arg = arg;	1630	once->arg = arg;
1206		1631
1207	ev_watcher_init (&once->io, once_cb_io);	1632	ev_init (&once->io, once_cb_io);
1208	if (fd >= 0)	1633	if (fd >= 0)
1209	{	1634	{
1210	ev_io_set (&once->io, fd, events);	1635	ev_io_set (&once->io, fd, events);
1211	ev_io_start (&once->io);	1636	ev_io_start (EV_A_ &once->io);
1212	}	1637	}
1213		1638
1214	ev_watcher_init (&once->to, once_cb_to);	1639	ev_init (&once->to, once_cb_to);
1215	if (timeout >= 0.)	1640	if (timeout >= 0.)
1216	{	1641	{
1217	ev_timer_set (&once->to, timeout, 0.);	1642	ev_timer_set (&once->to, timeout, 0.);
1218	ev_timer_start (&once->to);	1643	ev_timer_start (EV_A_ &once->to);
1219	}	1644	}
1220	}	1645	}
1221	}	1646	}
1222		1647
1223	/*****************************************************************************/	1648	#ifdef __cplusplus
1224
1225	#if 0
1226
1227	struct ev_io wio;
1228
1229	static void
1230	sin_cb (struct ev_io *w, int revents)
1231	{
1232	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1233	}	1649	}
1234
1235	static void
1236	ocb (struct ev_timer *w, int revents)
1237	{
1238	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1239	ev_timer_stop (w);
1240	ev_timer_start (w);
1241	}
1242
1243	static void
1244	scb (struct ev_signal *w, int revents)
1245	{
1246	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1247	ev_io_stop (&wio);
1248	ev_io_start (&wio);
1249	}
1250
1251	static void
1252	gcb (struct ev_signal *w, int revents)
1253	{
1254	fprintf (stderr, "generic %x\n", revents);
1255
1256	}
1257
1258	int main (void)
1259	{
1260	ev_init (0);
1261
1262	ev_io_init (&wio, sin_cb, 0, EV_READ);
1263	ev_io_start (&wio);
1264
1265	struct ev_timer t[10000];
1266
1267	#if 0
1268	int i;
1269	for (i = 0; i < 10000; ++i)
1270	{
1271	struct ev_timer *w = t + i;
1272	ev_watcher_init (w, ocb, i);
1273	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1274	ev_timer_start (w);
1275	if (drand48 () < 0.5)
1276	ev_timer_stop (w);
1277	}
1278	#endif	1650	#endif
1279		1651
1280	struct ev_timer t1;
1281	ev_timer_init (&t1, ocb, 5, 10);
1282	ev_timer_start (&t1);
1283
1284	struct ev_signal sig;
1285	ev_signal_init (&sig, scb, SIGQUIT);
1286	ev_signal_start (&sig);
1287
1288	struct ev_check cw;
1289	ev_check_init (&cw, gcb);
1290	ev_check_start (&cw);
1291
1292	struct ev_idle iw;
1293	ev_idle_init (&iw, gcb);
1294	ev_idle_start (&iw);
1295
1296	ev_loop (0);
1297
1298	return 0;
1299	}
1300
1301	#endif
1302
1303
1304
1305

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Comparing libev/ev.c (file contents): Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs. Revision 1.117 by ayin, Thu Nov 15 17:15:56 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.48 by root, Sat Nov 3 12:19:31 2007 UTC vs.
Revision 1.117 by ayin, Thu Nov 15 17:15:56 2007 UTC