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

Comparing libev/ev.c (file contents):
Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
58	#include <stdlib.h>	98	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	99	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	100	#include <stddef.h>
63		101
64	#include <stdio.h>	102	#include <stdio.h>
65		103
66	#include <assert.h>	104	#include <assert.h>
67	#include <errno.h>	105	#include <errno.h>
68	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
69	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
70	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	120	# endif
72	#include <sys/time.h>	121	#endif
73	#include <time.h>
74		122
75	/**/	123	/**/
76		124
77	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
79	#endif	131	#endif
80		132
81	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
83	#endif	135	#endif
84		136
85	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
87	#endif	143	#endif
88		144
89	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
91	#endif	147	#endif
92		148
93	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
95	#endif	151	#endif
96		152
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
107	#endif	155	#endif
108		156
109	/**/	157	/**/
110		158
111	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
119	#endif	167	#endif
120		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
121	/**/	173	/**/
122		174
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
127		179
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
128	#include "ev.h"	183	# include "ev.h"
		184	#endif
129		185
130	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	188	# define inline static inline
133	#else	189	#else
134	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
135	# define inline static	191	# define inline static
136	#endif	192	#endif
137		193
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
140		196
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
144	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
147		206
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		208
150	#if WIN32	209	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	210	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	211	#endif
155		212
156	/*****************************************************************************/	213	/*****************************************************************************/
157		214
158	static void (*syserr_cb)(void);	215	static void (syserr_cb)(const char msg);
159		216
160	void ev_set_syserr_cb (void (*cb)(void))	217	void ev_set_syserr_cb (void (cb)(const char msg))
161	{	218	{
162	syserr_cb = cb;	219	syserr_cb = cb;
163	}	220	}
164		221
165	static void	222	static void
166	syserr (void)	223	syserr (const char *msg)
167	{	224	{
		225	if (!msg)
		226	msg = "(libev) system error";
		227
168	if (syserr_cb)	228	if (syserr_cb)
169	syserr_cb ();	229	syserr_cb (msg);
170	else	230	else
171	{	231	{
172	perror ("libev");	232	perror (msg);
173	abort ();	233	abort ();
174	}	234	}
175	}	235	}
176		236
177	static void (alloc)(void *ptr, long size);	237	static void (alloc)(void *ptr, long size);
…		…
203	typedef struct	263	typedef struct
204	{	264	{
205	WL head;	265	WL head;
206	unsigned char events;	266	unsigned char events;
207	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
208	} ANFD;	271	} ANFD;
209		272
210	typedef struct	273	typedef struct
211	{	274	{
212	W w;	275	W w;
213	int events;	276	int events;
214	} ANPENDING;	277	} ANPENDING;
215		278
216	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
217		280
218	struct ev_loop	281	struct ev_loop
219	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
220	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
221	# include "ev_vars.h"	286	#include "ev_vars.h"
222	};
223	# undef VAR	287	#undef VAR
		288	};
224	# include "ev_wrap.h"	289	#include "ev_wrap.h"
		290
		291	static struct ev_loop default_loop_struct;
		292	struct ev_loop *ev_default_loop_ptr;
225		293
226	#else	294	#else
227		295
		296	ev_tstamp ev_rt_now;
228	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
229	# include "ev_vars.h"	298	#include "ev_vars.h"
230	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
231		302
232	#endif	303	#endif
233		304
234	/*****************************************************************************/	305	/*****************************************************************************/
235		306
236	inline ev_tstamp	307	ev_tstamp
237	ev_time (void)	308	ev_time (void)
238	{	309	{
239	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
240	struct timespec ts;	311	struct timespec ts;
241	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
260	#endif	331	#endif
261		332
262	return ev_time ();	333	return ev_time ();
263	}	334	}
264		335
		336	#if EV_MULTIPLICITY
265	ev_tstamp	337	ev_tstamp
266	ev_now (EV_P)	338	ev_now (EV_P)
267	{	339	{
268	return rt_now;	340	return ev_rt_now;
269	}	341	}
		342	#endif
270		343
271	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
272		345
273	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
274	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
275	{ \	348	{ \
276	int newcnt = cur; \	349	int newcnt = cur; \
277	do \	350	do \
278	{ \	351	{ \
279	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
280	} \	353	} \
281	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
282	\	355	\
283	base = ev_realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
284	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
285	cur = newcnt; \	358	cur = newcnt; \
286	}	359	}
287		360
288	#define array_slim(stem) \	361	#define array_slim(type,stem) \
289	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
290	{ \	363	{ \
291	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
292	base = ev_realloc (base, sizeof (base) (stem ## max)); \	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
293	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
294	}	367	}
295		368
296	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
297	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
…		…
309		382
310	++base;	383	++base;
311	}	384	}
312	}	385	}
313		386
314	static void	387	void
315	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
316	{	389	{
317	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
318	{	393	{
319	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
320	return;	395	return;
321	}	396	}
322		397
323	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
324	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
325	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
326	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
327	}	402	}
328		403
329	static void	404	static void
330	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
331	{	406	{
332	int i;	407	int i;
333		408
334	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
335	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
336	}	411	}
337		412
338	static void	413	inline void
339	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
340	{	415	{
341	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
342	struct ev_io *w;	417	struct ev_io *w;
343		418
344	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	419	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
345	{	420	{
346	int ev = w->events & events;	421	int ev = w->events & revents;
347		422
348	if (ev)	423	if (ev)
349	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
350	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
351	}	432	}
352		433
353	/*****************************************************************************/	434	/*****************************************************************************/
354		435
355	static void	436	inline void
356	fd_reify (EV_P)	437	fd_reify (EV_P)
357	{	438	{
358	int i;	439	int i;
359		440
360	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
366	int events = 0;	447	int events = 0;
367		448
368	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
369	events \|= w->events;	450	events \|= w->events;
370		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
371	anfd->reify = 0;	461	anfd->reify = 0;
372		462
373	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
374	anfd->events = events;	464	anfd->events = events;
375	}	465	}
376		466
377	fdchangecnt = 0;	467	fdchangecnt = 0;
378	}	468	}
379		469
380	static void	470	static void
381	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
382	{	472	{
383	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
384	return;	474	return;
385		475
386	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
387		477
388	++fdchangecnt;	478	++fdchangecnt;
389	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
390	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
391	}	481	}
392		482
393	static void	483	static void
394	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
396	struct ev_io *w;	486	struct ev_io *w;
397		487
398	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
399	{	489	{
400	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
401	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
402	}	492	}
		493	}
		494
		495	inline int
		496	fd_valid (int fd)
		497	{
		498	#ifdef _WIN32
		499	return _get_osfhandle (fd) != -1;
		500	#else
		501	return fcntl (fd, F_GETFD) != -1;
		502	#endif
403	}	503	}
404		504
405	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
406	static void	506	static void
407	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
408	{	508	{
409	int fd;	509	int fd;
410		510
411	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
412	if (anfds [fd].events)	512	if (anfds [fd].events)
413	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
414	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
415	}	515	}
416		516
417	/* called on ENOMEM in select/poll to kill some fds and retry */	517	/* called on ENOMEM in select/poll to kill some fds and retry */
418	static void	518	static void
…		…
426	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
427	return;	527	return;
428	}	528	}
429	}	529	}
430		530
431	/* susually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
432	static void	532	static void
433	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
434	{	534	{
435	int fd;	535	int fd;
436		536
…		…
484		584
485	heap [k] = w;	585	heap [k] = w;
486	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
487	}	587	}
488		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
		594	}
		595
489	/*****************************************************************************/	596	/*****************************************************************************/
490		597
491	typedef struct	598	typedef struct
492	{	599	{
493	WL head;	600	WL head;
…		…
514	}	621	}
515		622
516	static void	623	static void
517	sighandler (int signum)	624	sighandler (int signum)
518	{	625	{
519	#if WIN32	626	#if _WIN32
520	signal (signum, sighandler);	627	signal (signum, sighandler);
521	#endif	628	#endif
522		629
523	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
524		631
…		…
529	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
530	errno = old_errno;	637	errno = old_errno;
531	}	638	}
532	}	639	}
533		640
		641	void
		642	ev_feed_signal_event (EV_P_ int signum)
		643	{
		644	WL w;
		645
		646	#if EV_MULTIPLICITY
		647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		648	#endif
		649
		650	--signum;
		651
		652	if (signum < 0 \|\| signum >= signalmax)
		653	return;
		654
		655	signals [signum].gotsig = 0;
		656
		657	for (w = signals [signum].head; w; w = w->next)
		658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		659	}
		660
534	static void	661	static void
535	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
536	{	663	{
537	WL w;
538	int signum;	664	int signum;
539		665
540	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
541	gotsig = 0;	667	gotsig = 0;
542		668
543	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
544	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
545	{	671	ev_feed_signal_event (EV_A_ signum + 1);
546	signals [signum].gotsig = 0;	672	}
547		673
548	for (w = signals [signum].head; w; w = w->next)	674	static void
549	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
550	}	676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
551	}	684	}
552		685
553	static void	686	static void
554	siginit (EV_P)	687	siginit (EV_P)
555	{	688	{
556	#ifndef WIN32	689	fd_intern (sigpipe [0]);
557	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
558	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
559
560	/* rather than sort out wether we really need nb, set it */
561	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
562	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
563	#endif
564		691
565	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
566	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
567	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
568	}	695	}
569		696
570	/*****************************************************************************/	697	/*****************************************************************************/
571		698
572	#ifndef WIN32
573
574	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
		700
		701	#ifndef _WIN32
		702
575	static struct ev_signal childev;	703	static struct ev_signal childev;
576		704
577	#ifndef WCONTINUED	705	#ifndef WCONTINUED
578	# define WCONTINUED 0	706	# define WCONTINUED 0
579	#endif	707	#endif
…		…
587	if (w->pid == pid \|\| !w->pid)	715	if (w->pid == pid \|\| !w->pid)
588	{	716	{
589	ev_priority (w) = ev_priority (sw); /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
590	w->rpid = pid;	718	w->rpid = pid;
591	w->rstatus = status;	719	w->rstatus = status;
592	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
593	}	721	}
594	}	722	}
595		723
596	static void	724	static void
597	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
599	int pid, status;	727	int pid, status;
600		728
601	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
602	{	730	{
603	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
		732	/* we need to do it this way so that the callback gets called before we continue */
604	event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
605		734
606	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
607	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
608	}	737	}
609	}	738	}
610		739
611	#endif	740	#endif
612		741
613	/*****************************************************************************/	742	/*****************************************************************************/
614		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
615	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
616	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
617	#endif	749	#endif
618	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
619	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
639		771
640	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
641	static int	773	static int
642	enable_secure (void)	774	enable_secure (void)
643	{	775	{
644	#ifdef WIN32	776	#ifdef _WIN32
645	return 0;	777	return 0;
646	#else	778	#else
647	return getuid () != geteuid ()	779	return getuid () != geteuid ()
648	\|\| getgid () != getegid ();	780	\|\| getgid () != getegid ();
649	#endif	781	#endif
650	}	782	}
651		783
652	int	784	unsigned int
653	ev_method (EV_P)	785	ev_supported_backends (void)
654	{	786	{
655	return method;	787	unsigned int flags = 0;
656	}
657		788
658	static void	789	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
659	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
660	{	800	{
661	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
662	{	826	{
663	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
664	{	828	{
665	struct timespec ts;	829	struct timespec ts;
666	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
667	have_monotonic = 1;	831	have_monotonic = 1;
668	}	832	}
669	#endif	833	#endif
670		834
671	rt_now = ev_time ();	835	ev_rt_now = ev_time ();
672	mn_now = get_clock ();	836	mn_now = get_clock ();
673	now_floor = mn_now;	837	now_floor = mn_now;
674	rtmn_diff = rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
675		839
676	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
677	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
678	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
679	else
680	methods = EVMETHOD_ANY;
681		844
682	method = 0;	845	if (!(flags & 0x0000ffffUL))
683	#if EV_USE_WIN32	846	flags \|= ev_recommended_backends ();
684	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
685	#endif	851	#endif
686	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
687	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
688	#endif	854	#endif
689	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
690	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
691	#endif	857	#endif
692	#if EV_USE_POLL	858	#if EV_USE_POLL
693	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
694	#endif	860	#endif
695	#if EV_USE_SELECT	861	#if EV_USE_SELECT
696	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
697	#endif	863	#endif
698	}
699	}
700		864
701	void	865	ev_init (&sigev, sigcb);
		866	ev_set_priority (&sigev, EV_MAXPRI);
		867	}
		868	}
		869
		870	static void
702	loop_destroy (EV_P)	871	loop_destroy (EV_P)
703	{	872	{
704	int i;	873	int i;
705		874
706	#if EV_USE_WIN32	875	#if EV_USE_PORT
707	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
708	#endif	877	#endif
709	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
710	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
711	#endif	880	#endif
712	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
713	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
714	#endif	883	#endif
715	#if EV_USE_POLL	884	#if EV_USE_POLL
716	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
717	#endif	886	#endif
718	#if EV_USE_SELECT	887	#if EV_USE_SELECT
719	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
720	#endif	889	#endif
721		890
722	for (i = NUMPRI; i--; )	891	for (i = NUMPRI; i--; )
723	array_free (pending, [i]);	892	array_free (pending, [i]);
724		893
		894	/* have to use the microsoft-never-gets-it-right macro */
725	array_free (fdchange, );	895	array_free (fdchange, EMPTY0);
726	array_free (timer, );	896	array_free (timer, EMPTY0);
		897	#if EV_PERIODICS
727	array_free (periodic, );	898	array_free (periodic, EMPTY0);
		899	#endif
728	array_free (idle, );	900	array_free (idle, EMPTY0);
729	array_free (prepare, );	901	array_free (prepare, EMPTY0);
730	array_free (check, );	902	array_free (check, EMPTY0);
731		903
732	method = 0;	904	backend = 0;
733	/TODO/
734	}	905	}
735		906
736	void	907	static void
737	loop_fork (EV_P)	908	loop_fork (EV_P)
738	{	909	{
739	/TODO/	910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
740	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
741	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
742	#endif	918	#endif
743	#if EV_USE_KQUEUE	919
744	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	920	if (ev_is_active (&sigev))
745	#endif	921	{
		922	/* default loop */
		923
		924	ev_ref (EV_A);
		925	ev_io_stop (EV_A_ &sigev);
		926	close (sigpipe [0]);
		927	close (sigpipe [1]);
		928
		929	while (pipe (sigpipe))
		930	syserr ("(libev) error creating pipe");
		931
		932	siginit (EV_A);
		933	}
		934
		935	postfork = 0;
746	}	936	}
747		937
748	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
749	struct ev_loop *	939	struct ev_loop *
750	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
751	{	941	{
752	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	942	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
753		943
754	memset (loop, 0, sizeof (struct ev_loop));	944	memset (loop, 0, sizeof (struct ev_loop));
755		945
756	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
757		947
758	if (ev_method (EV_A))	948	if (ev_backend (EV_A))
759	return loop;	949	return loop;
760		950
761	return 0;	951	return 0;
762	}	952	}
763		953
…		…
769	}	959	}
770		960
771	void	961	void
772	ev_loop_fork (EV_P)	962	ev_loop_fork (EV_P)
773	{	963	{
774	loop_fork (EV_A);	964	postfork = 1;
775	}	965	}
776		966
777	#endif	967	#endif
778		968
779	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
780	struct ev_loop default_loop_struct;
781	static struct ev_loop *default_loop;
782
783	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
784	#else	972	#else
785	static int default_loop;
786
787	int	973	int
		974	ev_default_loop (unsigned int flags)
788	#endif	975	#endif
789	ev_default_loop (int methods)
790	{	976	{
791	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
792	if (pipe (sigpipe))	978	if (pipe (sigpipe))
793	return 0;	979	return 0;
794		980
795	if (!default_loop)	981	if (!ev_default_loop_ptr)
796	{	982	{
797	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
798	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
799	#else	985	#else
800	default_loop = 1;	986	ev_default_loop_ptr = 1;
801	#endif	987	#endif
802		988
803	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
804		990
805	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
806	{	992	{
807	ev_watcher_init (&sigev, sigcb);
808	ev_set_priority (&sigev, EV_MAXPRI);
809	siginit (EV_A);	993	siginit (EV_A);
810		994
811	#ifndef WIN32	995	#ifndef _WIN32
812	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
813	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
814	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
815	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
816	#endif	1000	#endif
817	}	1001	}
818	else	1002	else
819	default_loop = 0;	1003	ev_default_loop_ptr = 0;
820	}	1004	}
821		1005
822	return default_loop;	1006	return ev_default_loop_ptr;
823	}	1007	}
824		1008
825	void	1009	void
826	ev_default_destroy (void)	1010	ev_default_destroy (void)
827	{	1011	{
828	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
829	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
830	#endif	1014	#endif
831		1015
		1016	#ifndef _WIN32
832	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
833	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
		1019	#endif
834		1020
835	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
836	ev_io_stop (EV_A_ &sigev);	1022	ev_io_stop (EV_A_ &sigev);
837		1023
838	close (sigpipe [0]); sigpipe [0] = 0;	1024	close (sigpipe [0]); sigpipe [0] = 0;
…		…
843		1029
844	void	1030	void
845	ev_default_fork (void)	1031	ev_default_fork (void)
846	{	1032	{
847	#if EV_MULTIPLICITY	1033	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	1034	struct ev_loop *loop = ev_default_loop_ptr;
849	#endif	1035	#endif
850		1036
851	loop_fork (EV_A);	1037	if (backend)
852		1038	postfork = 1;
853	ev_io_stop (EV_A_ &sigev);
854	close (sigpipe [0]);
855	close (sigpipe [1]);
856	pipe (sigpipe);
857
858	ev_ref (EV_A); /* signal watcher */
859	siginit (EV_A);
860	}	1039	}
861		1040
862	/*****************************************************************************/	1041	/*****************************************************************************/
863		1042
864	static void	1043	static int
		1044	any_pending (EV_P)
		1045	{
		1046	int pri;
		1047
		1048	for (pri = NUMPRI; pri--; )
		1049	if (pendingcnt [pri])
		1050	return 1;
		1051
		1052	return 0;
		1053	}
		1054
		1055	inline void
865	call_pending (EV_P)	1056	call_pending (EV_P)
866	{	1057	{
867	int pri;	1058	int pri;
868		1059
869	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
870	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
871	{	1062	{
872	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
873		1064
874	if (p->w)	1065	if (expect_true (p->w))
875	{	1066	{
876	p->w->pending = 0;	1067	p->w->pending = 0;
877	p->w->cb (EV_A_ p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
878	}	1069	}
879	}	1070	}
880	}	1071	}
881		1072
882	static void	1073	inline void
883	timers_reify (EV_P)	1074	timers_reify (EV_P)
884	{	1075	{
885	while (timercnt && ((WT)timers [0])->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
886	{	1077	{
887	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
…		…
890		1081
891	/* first reschedule or stop timer */	1082	/* first reschedule or stop timer */
892	if (w->repeat)	1083	if (w->repeat)
893	{	1084	{
894	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1085	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1086
895	((WT)w)->at = mn_now + w->repeat;	1087	((WT)w)->at += w->repeat;
		1088	if (((WT)w)->at < mn_now)
		1089	((WT)w)->at = mn_now;
		1090
896	downheap ((WT *)timers, timercnt, 0);	1091	downheap ((WT *)timers, timercnt, 0);
897	}	1092	}
898	else	1093	else
899	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1094	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
900		1095
901	event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
902	}	1097	}
903	}	1098	}
904		1099
905	static void	1100	#if EV_PERIODICS
		1101	inline void
906	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
907	{	1103	{
908	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
909	{	1105	{
910	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
911		1107
912	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
913		1109
914	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
915	if (w->interval)	1111	if (w->reschedule_cb)
916	{	1112	{
		1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1115	downheap ((WT *)periodics, periodiccnt, 0);
		1116	}
		1117	else if (w->interval)
		1118	{
917	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1119	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
918	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1120	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
919	downheap ((WT *)periodics, periodiccnt, 0);	1121	downheap ((WT *)periodics, periodiccnt, 0);
920	}	1122	}
921	else	1123	else
922	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1124	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
923		1125
924	event (EV_A_ (W)w, EV_PERIODIC);	1126	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
925	}	1127	}
926	}	1128	}
927		1129
928	static void	1130	static void
929	periodics_reschedule (EV_P)	1131	periodics_reschedule (EV_P)
…		…
933	/* adjust periodics after time jump */	1135	/* adjust periodics after time jump */
934	for (i = 0; i < periodiccnt; ++i)	1136	for (i = 0; i < periodiccnt; ++i)
935	{	1137	{
936	struct ev_periodic *w = periodics [i];	1138	struct ev_periodic *w = periodics [i];
937		1139
		1140	if (w->reschedule_cb)
		1141	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
938	if (w->interval)	1142	else if (w->interval)
939	{
940	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1143	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
941
942	if (fabs (diff) >= 1e-4)
943	{
944	ev_periodic_stop (EV_A_ w);
945	ev_periodic_start (EV_A_ w);
946
947	i = 0; /* restart loop, inefficient, but time jumps should be rare */
948	}
949	}
950	}	1144	}
		1145
		1146	/* now rebuild the heap */
		1147	for (i = periodiccnt >> 1; i--; )
		1148	downheap ((WT *)periodics, periodiccnt, i);
951	}	1149	}
		1150	#endif
952		1151
953	inline int	1152	inline int
954	time_update_monotonic (EV_P)	1153	time_update_monotonic (EV_P)
955	{	1154	{
956	mn_now = get_clock ();	1155	mn_now = get_clock ();
957		1156
958	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1157	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
959	{	1158	{
960	rt_now = rtmn_diff + mn_now;	1159	ev_rt_now = rtmn_diff + mn_now;
961	return 0;	1160	return 0;
962	}	1161	}
963	else	1162	else
964	{	1163	{
965	now_floor = mn_now;	1164	now_floor = mn_now;
966	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
967	return 1;	1166	return 1;
968	}	1167	}
969	}	1168	}
970		1169
971	static void	1170	inline void
972	time_update (EV_P)	1171	time_update (EV_P)
973	{	1172	{
974	int i;	1173	int i;
975		1174
976	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
980	{	1179	{
981	ev_tstamp odiff = rtmn_diff;	1180	ev_tstamp odiff = rtmn_diff;
982		1181
983	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1182	for (i = 4; --i; ) /* loop a few times, before making important decisions */
984	{	1183	{
985	rtmn_diff = rt_now - mn_now;	1184	rtmn_diff = ev_rt_now - mn_now;
986		1185
987	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1186	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
988	return; /* all is well */	1187	return; /* all is well */
989		1188
990	rt_now = ev_time ();	1189	ev_rt_now = ev_time ();
991	mn_now = get_clock ();	1190	mn_now = get_clock ();
992	now_floor = mn_now;	1191	now_floor = mn_now;
993	}	1192	}
994		1193
		1194	# if EV_PERIODICS
995	periodics_reschedule (EV_A);	1195	periodics_reschedule (EV_A);
		1196	# endif
996	/* no timer adjustment, as the monotonic clock doesn't jump */	1197	/* no timer adjustment, as the monotonic clock doesn't jump */
997	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1198	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
998	}	1199	}
999	}	1200	}
1000	else	1201	else
1001	#endif	1202	#endif
1002	{	1203	{
1003	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
1004		1205
1005	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1206	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1006	{	1207	{
		1208	#if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1209	periodics_reschedule (EV_A);
		1210	#endif
1008		1211
1009	/* adjust timers. this is easy, as the offset is the same for all */	1212	/* adjust timers. this is easy, as the offset is the same for all */
1010	for (i = 0; i < timercnt; ++i)	1213	for (i = 0; i < timercnt; ++i)
1011	((WT)timers [i])->at += rt_now - mn_now;	1214	((WT)timers [i])->at += ev_rt_now - mn_now;
1012	}	1215	}
1013		1216
1014	mn_now = rt_now;	1217	mn_now = ev_rt_now;
1015	}	1218	}
1016	}	1219	}
1017		1220
1018	void	1221	void
1019	ev_ref (EV_P)	1222	ev_ref (EV_P)
…		…
1033	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
1034	{	1237	{
1035	double block;	1238	double block;
1036	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1037		1240
1038	do	1241	while (activecnt)
1039	{	1242	{
1040	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
1041	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
1042	{	1245	{
1043	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1044	call_pending (EV_A);	1247	call_pending (EV_A);
1045	}	1248	}
1046		1249
		1250	/* we might have forked, so reify kernel state if necessary */
		1251	if (expect_false (postfork))
		1252	loop_fork (EV_A);
		1253
1047	/* update fd-related kernel structures */	1254	/* update fd-related kernel structures */
1048	fd_reify (EV_A);	1255	fd_reify (EV_A);
1049		1256
1050	/* calculate blocking time */	1257	/* calculate blocking time */
1051		1258
1052	/* we only need this for !monotonic clockor timers, but as we basically	1259	/* we only need this for !monotonic clock or timers, but as we basically
1053	always have timers, we just calculate it always */	1260	always have timers, we just calculate it always */
1054	#if EV_USE_MONOTONIC	1261	#if EV_USE_MONOTONIC
1055	if (expect_true (have_monotonic))	1262	if (expect_true (have_monotonic))
1056	time_update_monotonic (EV_A);	1263	time_update_monotonic (EV_A);
1057	else	1264	else
1058	#endif	1265	#endif
1059	{	1266	{
1060	rt_now = ev_time ();	1267	ev_rt_now = ev_time ();
1061	mn_now = rt_now;	1268	mn_now = ev_rt_now;
1062	}	1269	}
1063		1270
1064	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1271	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1065	block = 0.;	1272	block = 0.;
1066	else	1273	else
1067	{	1274	{
1068	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
1069		1276
1070	if (timercnt)	1277	if (timercnt)
1071	{	1278	{
1072	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1073	if (block > to) block = to;	1280	if (block > to) block = to;
1074	}	1281	}
1075		1282
		1283	#if EV_PERIODICS
1076	if (periodiccnt)	1284	if (periodiccnt)
1077	{	1285	{
1078	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1079	if (block > to) block = to;	1287	if (block > to) block = to;
1080	}	1288	}
		1289	#endif
1081		1290
1082	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
1083	}	1292	}
1084		1293
1085	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
1086		1295
1087	/* update rt_now, do magic */	1296	/* update ev_rt_now, do magic */
1088	time_update (EV_A);	1297	time_update (EV_A);
1089		1298
1090	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
1091	timers_reify (EV_A); /* relative timers called last */	1300	timers_reify (EV_A); /* relative timers called last */
		1301	#if EV_PERIODICS
1092	periodics_reify (EV_A); /* absolute timers called first */	1302	periodics_reify (EV_A); /* absolute timers called first */
		1303	#endif
1093		1304
1094	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
1095	if (!pendingcnt)	1306	if (idlecnt && !any_pending (EV_A))
1096	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1097		1308
1098	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
1099	if (checkcnt)	1310	if (expect_false (checkcnt))
1100	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1101		1312
1102	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
1103	}	1317	}
1104	while (activecnt && !loop_done);
1105		1318
1106	if (loop_done != 2)	1319	if (loop_done != 2)
1107	loop_done = 0;	1320	loop_done = 0;
1108	}	1321	}
1109		1322
…		…
1169	void	1382	void
1170	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1171	{	1384	{
1172	int fd = w->fd;	1385	int fd = w->fd;
1173		1386
1174	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1175	return;	1388	return;
1176		1389
1177	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1178		1391
1179	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
1180	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1393	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1181	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1394	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1182		1395
1183	fd_change (EV_A_ fd);	1396	fd_change (EV_A_ fd);
1184	}	1397	}
1185		1398
1186	void	1399	void
1187	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1188	{	1401	{
1189	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1190	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1191	return;	1404	return;
		1405
		1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1192		1407
1193	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1194	ev_stop (EV_A_ (W)w);	1409	ev_stop (EV_A_ (W)w);
1195		1410
1196	fd_change (EV_A_ w->fd);	1411	fd_change (EV_A_ w->fd);
1197	}	1412	}
1198		1413
1199	void	1414	void
1200	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1201	{	1416	{
1202	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1203	return;	1418	return;
1204		1419
1205	((WT)w)->at += mn_now;	1420	((WT)w)->at += mn_now;
1206		1421
1207	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1208		1423
1209	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1210	array_needsize (timers, timermax, timercnt, );	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1211	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1212	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
1213		1428
1214	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1215	}	1430	}
1216		1431
1217	void	1432	void
1218	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1219	{	1434	{
1220	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1221	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1222	return;	1437	return;
1223		1438
1224	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1225		1440
1226	if (((W)w)->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1227	{	1442	{
1228	timers [((W)w)->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1229	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1230	}	1445	}
1231		1446
1232	((WT)w)->at = w->repeat;	1447	((WT)w)->at -= mn_now;
1233		1448
1234	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1235	}	1450	}
1236		1451
1237	void	1452	void
…		…
1240	if (ev_is_active (w))	1455	if (ev_is_active (w))
1241	{	1456	{
1242	if (w->repeat)	1457	if (w->repeat)
1243	{	1458	{
1244	((WT)w)->at = mn_now + w->repeat;	1459	((WT)w)->at = mn_now + w->repeat;
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1460	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1461	}
1247	else	1462	else
1248	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1249	}	1464	}
1250	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1251	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1252	}	1470	}
1253		1471
		1472	#if EV_PERIODICS
1254	void	1473	void
1255	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1256	{	1475	{
1257	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1258	return;	1477	return;
1259		1478
		1479	if (w->reschedule_cb)
		1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1481	else if (w->interval)
		1482	{
1260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1483	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1261
1262	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1263	if (w->interval)
1264	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1486	}
1265		1487
1266	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1267	array_needsize (periodics, periodicmax, periodiccnt, );	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1268	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1269	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
1270		1492
1271	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1272	}	1494	}
1273		1495
1274	void	1496	void
1275	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1276	{	1498	{
1277	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1278	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1279	return;	1501	return;
1280		1502
1281	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1282		1504
1283	if (((W)w)->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1284	{	1506	{
1285	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1286	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1287	}	1509	}
1288		1510
1289	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1290	}	1512	}
1291		1513
1292	void	1514	void
		1515	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1516	{
		1517	/* TODO: use adjustheap and recalculation */
		1518	ev_periodic_stop (EV_A_ w);
		1519	ev_periodic_start (EV_A_ w);
		1520	}
		1521	#endif
		1522
		1523	void
1293	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1294	{	1525	{
1295	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1296	return;	1527	return;
1297		1528
1298	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1299	array_needsize (idles, idlemax, idlecnt, );	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1300	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1301	}	1532	}
1302		1533
1303	void	1534	void
1304	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1305	{	1536	{
1306	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1307	if (ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1308	return;	1539	return;
1309		1540
1310	idles [((W)w)->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1311	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1312	}	1543	}
1313		1544
1314	void	1545	void
1315	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1316	{	1547	{
1317	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1318	return;	1549	return;
1319		1550
1320	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1321	array_needsize (prepares, preparemax, preparecnt, );	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1322	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1323	}	1554	}
1324		1555
1325	void	1556	void
1326	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1327	{	1558	{
1328	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1329	if (ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1330	return;	1561	return;
1331		1562
1332	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1333	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1334	}	1565	}
1335		1566
1336	void	1567	void
1337	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1338	{	1569	{
1339	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1340	return;	1571	return;
1341		1572
1342	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1343	array_needsize (checks, checkmax, checkcnt, );	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1344	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1345	}	1576	}
1346		1577
1347	void	1578	void
1348	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1349	{	1580	{
1350	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1351	if (ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1352	return;	1583	return;
1353		1584
1354	checks [((W)w)->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1355	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1356	}	1587	}
…		…
1361		1592
1362	void	1593	void
1363	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1364	{	1595	{
1365	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1366	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1367	#endif	1598	#endif
1368	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1369	return;	1600	return;
1370		1601
1371	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1372		1603
1373	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1374	array_needsize (signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1375	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1376		1607
1377	if (!((WL)w)->next)	1608	if (!((WL)w)->next)
1378	{	1609	{
1379	#if WIN32	1610	#if _WIN32
1380	signal (w->signum, sighandler);	1611	signal (w->signum, sighandler);
1381	#else	1612	#else
1382	struct sigaction sa;	1613	struct sigaction sa;
1383	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1384	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
…		…
1390		1621
1391	void	1622	void
1392	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1393	{	1624	{
1394	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1395	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1396	return;	1627	return;
1397		1628
1398	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1399	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1400		1631
…		…
1404		1635
1405	void	1636	void
1406	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1407	{	1638	{
1408	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1409	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1410	#endif	1641	#endif
1411	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1412	return;	1643	return;
1413		1644
1414	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1415	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1416	}	1647	}
1417		1648
1418	void	1649	void
1419	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1420	{	1651	{
1421	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1423	return;	1654	return;
1424		1655
1425	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1426	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1427	}	1658	}
…		…
1462	}	1693	}
1463		1694
1464	void	1695	void
1465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1466	{	1697	{
1467	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1698	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1468		1699
1469	if (!once)	1700	if (expect_false (!once))
		1701	{
1470	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1702	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1471	else	1703	return;
1472	{	1704	}
		1705
1473	once->cb = cb;	1706	once->cb = cb;
1474	once->arg = arg;	1707	once->arg = arg;
1475		1708
1476	ev_watcher_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1477	if (fd >= 0)	1710	if (fd >= 0)
1478	{	1711	{
1479	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1480	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1481	}	1714	}
1482		1715
1483	ev_watcher_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1484	if (timeout >= 0.)	1717	if (timeout >= 0.)
1485	{	1718	{
1486	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1487	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1488	}
1489	}	1721	}
1490	}	1722	}
1491		1723
		1724	#ifdef __cplusplus
		1725	}
		1726	#endif
		1727

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Comparing libev/ev.c (file contents): Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs. Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.69 by root, Tue Nov 6 00:10:04 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC