[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 1.133 by root, Fri Nov 23 11:32:22 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
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
32	# include "config.h"	40	# include "config.h"
		41	# endif
33		42
34	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
37	# endif	57	# endif
38		58
		59	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
41	# endif	65	# endif
42		66
		67	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
45	# endif	73	# endif
46		74
		75	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
49	# endif	81	# endif
50		82
		83	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
53	# endif	97	# endif
54		98
55	#endif	99	#endif
56		100
57	#include <math.h>	101	#include <math.h>
58	#include <stdlib.h>	102	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	103	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	104	#include <stddef.h>
63		105
64	#include <stdio.h>	106	#include <stdio.h>
65		107
66	#include <assert.h>	108	#include <assert.h>
67	#include <errno.h>	109	#include <errno.h>
68	#include <sys/types.h>	110	#include <sys/types.h>
		111	#include <time.h>
		112
		113	#include <signal.h>
		114
69	#ifndef WIN32	115	#ifndef _WIN32
		116	# include <unistd.h>
		117	# include <sys/time.h>
70	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	124	# endif
72	#include <sys/time.h>	125	#endif
73	#include <time.h>
74		126
75	/**/	127	/**/
76		128
77	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
79	#endif	135	#endif
80		136
81	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
83	#endif	139	#endif
84		140
85	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
87	#endif	147	#endif
88		148
89	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
91	#endif	151	#endif
92		152
93	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
95	#endif	155	#endif
96		156
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	157	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
107	#endif	159	#endif
108		160
109	/**/	161	/**/
110		162
111	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
119	#endif	171	#endif
120		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
121	/**/	177	/**/
122		178
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#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) */	180	#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 */	181	#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 */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
127		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
128	#include "ev.h"	187	# include "ev.h"
		188	#endif
129		189
130	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	192	# define inline static inline
133	#else	193	#else
134	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
135	# define inline static	195	# define inline static
136	#endif	196	#endif
137		197
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
140		200
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
144	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
147		210
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		212
150	#if WIN32	213	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	214	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	215	#endif
155		216
156	/*****************************************************************************/	217	/*****************************************************************************/
157		218
158	static void (*syserr_cb)(void);	219	static void (syserr_cb)(const char msg);
159		220
160	void ev_set_syserr_cb (void (*cb)(void))	221	void ev_set_syserr_cb (void (cb)(const char msg))
161	{	222	{
162	syserr_cb = cb;	223	syserr_cb = cb;
163	}	224	}
164		225
165	static void	226	static void
166	syserr (void)	227	syserr (const char *msg)
167	{	228	{
		229	if (!msg)
		230	msg = "(libev) system error";
		231
168	if (syserr_cb)	232	if (syserr_cb)
169	syserr_cb ();	233	syserr_cb (msg);
170	else	234	else
171	{	235	{
172	perror ("libev");	236	perror (msg);
173	abort ();	237	abort ();
174	}	238	}
175	}	239	}
176		240
177	static void (alloc)(void *ptr, long size);	241	static void (alloc)(void *ptr, long size);
…		…
203	typedef struct	267	typedef struct
204	{	268	{
205	WL head;	269	WL head;
206	unsigned char events;	270	unsigned char events;
207	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
208	} ANFD;	275	} ANFD;
209		276
210	typedef struct	277	typedef struct
211	{	278	{
212	W w;	279	W w;
213	int events;	280	int events;
214	} ANPENDING;	281	} ANPENDING;
215		282
216	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
217		284
218	struct ev_loop	285	struct ev_loop
219	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
220	# define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
221	# include "ev_vars.h"	290	#include "ev_vars.h"
222	};
223	# undef VAR	291	#undef VAR
		292	};
224	# include "ev_wrap.h"	293	#include "ev_wrap.h"
		294
		295	static struct ev_loop default_loop_struct;
		296	struct ev_loop *ev_default_loop_ptr;
225		297
226	#else	298	#else
227		299
		300	ev_tstamp ev_rt_now;
228	# define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
229	# include "ev_vars.h"	302	#include "ev_vars.h"
230	# undef VAR	303	#undef VAR
		304
		305	static int ev_default_loop_ptr;
231		306
232	#endif	307	#endif
233		308
234	/*****************************************************************************/	309	/*****************************************************************************/
235		310
236	inline ev_tstamp	311	ev_tstamp
237	ev_time (void)	312	ev_time (void)
238	{	313	{
239	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
240	struct timespec ts;	315	struct timespec ts;
241	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
260	#endif	335	#endif
261		336
262	return ev_time ();	337	return ev_time ();
263	}	338	}
264		339
		340	#if EV_MULTIPLICITY
265	ev_tstamp	341	ev_tstamp
266	ev_now (EV_P)	342	ev_now (EV_P)
267	{	343	{
268	return rt_now;	344	return ev_rt_now;
269	}	345	}
		346	#endif
270		347
271	#define array_roundsize(base,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
272		349
273	#define array_needsize(base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
274	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
275	{ \	352	{ \
276	int newcnt = cur; \	353	int newcnt = cur; \
277	do \	354	do \
278	{ \	355	{ \
279	newcnt = array_roundsize (base, newcnt << 1); \	356	newcnt = array_roundsize (type, newcnt << 1); \
280	} \	357	} \
281	while ((cnt) > newcnt); \	358	while ((cnt) > newcnt); \
282	\	359	\
283	base = ev_realloc (base, sizeof (base) (newcnt)); \	360	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
284	init (base + cur, newcnt - cur); \	361	init (base + cur, newcnt - cur); \
285	cur = newcnt; \	362	cur = newcnt; \
286	}	363	}
287		364
288	#define array_slim(stem) \	365	#define array_slim(type,stem) \
289	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	366	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
290	{ \	367	{ \
291	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
292	base = ev_realloc (base, sizeof (base) (stem ## max)); \	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
293	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
294	}	371	}
295		372
296	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
297	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
…		…
309		386
310	++base;	387	++base;
311	}	388	}
312	}	389	}
313		390
314	static void	391	void
315	event (EV_P_ W w, int events)	392	ev_feed_event (EV_P_ void *w, int revents)
316	{	393	{
317	if (w->pending)	394	W w_ = (W)w;
		395
		396	if (expect_false (w_->pending))
318	{	397	{
319	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
320	return;	399	return;
321	}	400	}
322		401
323	w->pending = ++pendingcnt [ABSPRI (w)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
324	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
325	pendings [ABSPRI (w)][w->pending - 1].w = w;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
326	pendings [ABSPRI (w)][w->pending - 1].events = events;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
327	}	406	}
328		407
329	static void	408	static void
330	queue_events (EV_P_ W *events, int eventcnt, int type)	409	queue_events (EV_P_ W *events, int eventcnt, int type)
331	{	410	{
332	int i;	411	int i;
333		412
334	for (i = 0; i < eventcnt; ++i)	413	for (i = 0; i < eventcnt; ++i)
335	event (EV_A_ events [i], type);	414	ev_feed_event (EV_A_ events [i], type);
336	}	415	}
337		416
338	static void	417	inline void
339	fd_event (EV_P_ int fd, int events)	418	fd_event (EV_P_ int fd, int revents)
340	{	419	{
341	ANFD *anfd = anfds + fd;	420	ANFD *anfd = anfds + fd;
342	struct ev_io *w;	421	struct ev_io *w;
343		422
344	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	423	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
345	{	424	{
346	int ev = w->events & events;	425	int ev = w->events & revents;
347		426
348	if (ev)	427	if (ev)
349	event (EV_A_ (W)w, ev);	428	ev_feed_event (EV_A_ (W)w, ev);
350	}	429	}
		430	}
		431
		432	void
		433	ev_feed_fd_event (EV_P_ int fd, int revents)
		434	{
		435	fd_event (EV_A_ fd, revents);
351	}	436	}
352		437
353	/*****************************************************************************/	438	/*****************************************************************************/
354		439
355	static void	440	inline void
356	fd_reify (EV_P)	441	fd_reify (EV_P)
357	{	442	{
358	int i;	443	int i;
359		444
360	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
…		…
366	int events = 0;	451	int events = 0;
367		452
368	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	453	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
369	events \|= w->events;	454	events \|= w->events;
370		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
371	anfd->reify = 0;	465	anfd->reify = 0;
372		466
373	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
374	anfd->events = events;	468	anfd->events = events;
375	}	469	}
376		470
377	fdchangecnt = 0;	471	fdchangecnt = 0;
378	}	472	}
379		473
380	static void	474	static void
381	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
382	{	476	{
383	if (anfds [fd].reify \|\| fdchangecnt < 0)	477	if (expect_false (anfds [fd].reify))
384	return;	478	return;
385		479
386	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
387		481
388	++fdchangecnt;	482	++fdchangecnt;
389	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
390	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
391	}	485	}
392		486
393	static void	487	static void
394	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
…		…
396	struct ev_io *w;	490	struct ev_io *w;
397		491
398	while ((w = (struct ev_io *)anfds [fd].head))	492	while ((w = (struct ev_io *)anfds [fd].head))
399	{	493	{
400	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
401	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
402	}	496	}
		497	}
		498
		499	inline int
		500	fd_valid (int fd)
		501	{
		502	#ifdef _WIN32
		503	return _get_osfhandle (fd) != -1;
		504	#else
		505	return fcntl (fd, F_GETFD) != -1;
		506	#endif
403	}	507	}
404		508
405	/* called on EBADF to verify fds */	509	/* called on EBADF to verify fds */
406	static void	510	static void
407	fd_ebadf (EV_P)	511	fd_ebadf (EV_P)
408	{	512	{
409	int fd;	513	int fd;
410		514
411	for (fd = 0; fd < anfdmax; ++fd)	515	for (fd = 0; fd < anfdmax; ++fd)
412	if (anfds [fd].events)	516	if (anfds [fd].events)
413	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	517	if (!fd_valid (fd) == -1 && errno == EBADF)
414	fd_kill (EV_A_ fd);	518	fd_kill (EV_A_ fd);
415	}	519	}
416		520
417	/* called on ENOMEM in select/poll to kill some fds and retry */	521	/* called on ENOMEM in select/poll to kill some fds and retry */
418	static void	522	static void
…		…
426	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
427	return;	531	return;
428	}	532	}
429	}	533	}
430		534
431	/* susually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
432	static void	536	static void
433	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
434	{	538	{
435	int fd;	539	int fd;
436		540
…		…
484		588
485	heap [k] = w;	589	heap [k] = w;
486	((W)heap [k])->active = k + 1;	590	((W)heap [k])->active = k + 1;
487	}	591	}
488		592
		593	inline void
		594	adjustheap (WT *heap, int N, int k)
		595	{
		596	upheap (heap, k);
		597	downheap (heap, N, k);
		598	}
		599
489	/*****************************************************************************/	600	/*****************************************************************************/
490		601
491	typedef struct	602	typedef struct
492	{	603	{
493	WL head;	604	WL head;
…		…
514	}	625	}
515		626
516	static void	627	static void
517	sighandler (int signum)	628	sighandler (int signum)
518	{	629	{
519	#if WIN32	630	#if _WIN32
520	signal (signum, sighandler);	631	signal (signum, sighandler);
521	#endif	632	#endif
522		633
523	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
524		635
…		…
529	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
530	errno = old_errno;	641	errno = old_errno;
531	}	642	}
532	}	643	}
533		644
		645	void
		646	ev_feed_signal_event (EV_P_ int signum)
		647	{
		648	WL w;
		649
		650	#if EV_MULTIPLICITY
		651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		652	#endif
		653
		654	--signum;
		655
		656	if (signum < 0 \|\| signum >= signalmax)
		657	return;
		658
		659	signals [signum].gotsig = 0;
		660
		661	for (w = signals [signum].head; w; w = w->next)
		662	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		663	}
		664
534	static void	665	static void
535	sigcb (EV_P_ struct ev_io *iow, int revents)	666	sigcb (EV_P_ struct ev_io *iow, int revents)
536	{	667	{
537	WL w;
538	int signum;	668	int signum;
539		669
540	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
541	gotsig = 0;	671	gotsig = 0;
542		672
543	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
544	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
545	{	675	ev_feed_signal_event (EV_A_ signum + 1);
546	signals [signum].gotsig = 0;	676	}
547		677
548	for (w = signals [signum].head; w; w = w->next)	678	static void
549	event (EV_A_ (W)w, EV_SIGNAL);	679	fd_intern (int fd)
550	}	680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
551	}	688	}
552		689
553	static void	690	static void
554	siginit (EV_P)	691	siginit (EV_P)
555	{	692	{
556	#ifndef WIN32	693	fd_intern (sigpipe [0]);
557	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	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		695
565	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
566	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
567	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
568	}	699	}
569		700
570	/*****************************************************************************/	701	/*****************************************************************************/
571		702
572	#ifndef WIN32
573
574	static struct ev_child *childs [PID_HASHSIZE];	703	static struct ev_child *childs [PID_HASHSIZE];
		704
		705	#ifndef _WIN32
		706
575	static struct ev_signal childev;	707	static struct ev_signal childev;
576		708
577	#ifndef WCONTINUED	709	#ifndef WCONTINUED
578	# define WCONTINUED 0	710	# define WCONTINUED 0
579	#endif	711	#endif
…		…
587	if (w->pid == pid \|\| !w->pid)	719	if (w->pid == pid \|\| !w->pid)
588	{	720	{
589	ev_priority (w) = ev_priority (sw); /* need to do it now */	721	ev_priority (w) = ev_priority (sw); /* need to do it now */
590	w->rpid = pid;	722	w->rpid = pid;
591	w->rstatus = status;	723	w->rstatus = status;
592	event (EV_A_ (W)w, EV_CHILD);	724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
593	}	725	}
594	}	726	}
595		727
596	static void	728	static void
597	childcb (EV_P_ struct ev_signal *sw, int revents)	729	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
599	int pid, status;	731	int pid, status;
600		732
601	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
602	{	734	{
603	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
604	event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
605		738
606	child_reap (EV_A_ sw, pid, pid, status);	739	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 */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
608	}	741	}
609	}	742	}
610		743
611	#endif	744	#endif
612		745
613	/*****************************************************************************/	746	/*****************************************************************************/
614		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
615	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
616	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
617	#endif	753	#endif
618	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
619	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
639		775
640	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
641	static int	777	static int
642	enable_secure (void)	778	enable_secure (void)
643	{	779	{
644	#ifdef WIN32	780	#ifdef _WIN32
645	return 0;	781	return 0;
646	#else	782	#else
647	return getuid () != geteuid ()	783	return getuid () != geteuid ()
648	\|\| getgid () != getegid ();	784	\|\| getgid () != getegid ();
649	#endif	785	#endif
650	}	786	}
651		787
652	int	788	unsigned int
653	ev_method (EV_P)	789	ev_supported_backends (void)
654	{	790	{
655	return method;	791	unsigned int flags = 0;
656	}
657		792
658	static void	793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
659	loop_init (EV_P_ int methods)	794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_recommended_backends (void)
660	{	804	{
661	if (!method)	805	unsigned int flags = ev_supported_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
		820	unsigned int
		821	ev_backend (EV_P)
		822	{
		823	return backend;
		824	}
		825
		826	static void
		827	loop_init (EV_P_ unsigned int flags)
		828	{
		829	if (!backend)
662	{	830	{
663	#if EV_USE_MONOTONIC	831	#if EV_USE_MONOTONIC
664	{	832	{
665	struct timespec ts;	833	struct timespec ts;
666	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	834	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
667	have_monotonic = 1;	835	have_monotonic = 1;
668	}	836	}
669	#endif	837	#endif
670		838
671	rt_now = ev_time ();	839	ev_rt_now = ev_time ();
672	mn_now = get_clock ();	840	mn_now = get_clock ();
673	now_floor = mn_now;	841	now_floor = mn_now;
674	rtmn_diff = rt_now - mn_now;	842	rtmn_diff = ev_rt_now - mn_now;
675		843
676	if (methods == EVMETHOD_AUTO)	844	if (!(flags & EVFLAG_NOENV)
677	if (!enable_secure () && getenv ("LIBEV_METHODS"))	845	&& !enable_secure ()
		846	&& getenv ("LIBEV_FLAGS"))
678	methods = atoi (getenv ("LIBEV_METHODS"));	847	flags = atoi (getenv ("LIBEV_FLAGS"));
679	else
680	methods = EVMETHOD_ANY;
681		848
682	method = 0;	849	if (!(flags & 0x0000ffffUL))
683	#if EV_USE_WIN32	850	flags \|= ev_recommended_backends ();
684	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	851
		852	backend = 0;
		853	#if EV_USE_PORT
		854	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
685	#endif	855	#endif
686	#if EV_USE_KQUEUE	856	#if EV_USE_KQUEUE
687	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	857	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
688	#endif	858	#endif
689	#if EV_USE_EPOLL	859	#if EV_USE_EPOLL
690	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	860	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
691	#endif	861	#endif
692	#if EV_USE_POLL	862	#if EV_USE_POLL
693	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	863	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
694	#endif	864	#endif
695	#if EV_USE_SELECT	865	#if EV_USE_SELECT
696	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	866	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
697	#endif	867	#endif
698	}
699	}
700		868
701	void	869	ev_init (&sigev, sigcb);
		870	ev_set_priority (&sigev, EV_MAXPRI);
		871	}
		872	}
		873
		874	static void
702	loop_destroy (EV_P)	875	loop_destroy (EV_P)
703	{	876	{
704	int i;	877	int i;
705		878
706	#if EV_USE_WIN32	879	#if EV_USE_PORT
707	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	880	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
708	#endif	881	#endif
709	#if EV_USE_KQUEUE	882	#if EV_USE_KQUEUE
710	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	883	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
711	#endif	884	#endif
712	#if EV_USE_EPOLL	885	#if EV_USE_EPOLL
713	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	886	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
714	#endif	887	#endif
715	#if EV_USE_POLL	888	#if EV_USE_POLL
716	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	889	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
717	#endif	890	#endif
718	#if EV_USE_SELECT	891	#if EV_USE_SELECT
719	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	892	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
720	#endif	893	#endif
721		894
722	for (i = NUMPRI; i--; )	895	for (i = NUMPRI; i--; )
723	array_free (pending, [i]);	896	array_free (pending, [i]);
724		897
		898	/* have to use the microsoft-never-gets-it-right macro */
725	array_free (fdchange, );	899	array_free (fdchange, EMPTY0);
726	array_free (timer, );	900	array_free (timer, EMPTY0);
		901	#if EV_PERIODICS
727	array_free (periodic, );	902	array_free (periodic, EMPTY0);
		903	#endif
728	array_free (idle, );	904	array_free (idle, EMPTY0);
729	array_free (prepare, );	905	array_free (prepare, EMPTY0);
730	array_free (check, );	906	array_free (check, EMPTY0);
731		907
732	method = 0;	908	backend = 0;
733	/TODO/
734	}	909	}
735		910
736	void	911	static void
737	loop_fork (EV_P)	912	loop_fork (EV_P)
738	{	913	{
739	/TODO/	914	#if EV_USE_PORT
		915	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		916	#endif
		917	#if EV_USE_KQUEUE
		918	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		919	#endif
740	#if EV_USE_EPOLL	920	#if EV_USE_EPOLL
741	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	921	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
742	#endif	922	#endif
743	#if EV_USE_KQUEUE	923
744	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	924	if (ev_is_active (&sigev))
745	#endif	925	{
		926	/* default loop */
		927
		928	ev_ref (EV_A);
		929	ev_io_stop (EV_A_ &sigev);
		930	close (sigpipe [0]);
		931	close (sigpipe [1]);
		932
		933	while (pipe (sigpipe))
		934	syserr ("(libev) error creating pipe");
		935
		936	siginit (EV_A);
		937	}
		938
		939	postfork = 0;
746	}	940	}
747		941
748	#if EV_MULTIPLICITY	942	#if EV_MULTIPLICITY
749	struct ev_loop *	943	struct ev_loop *
750	ev_loop_new (int methods)	944	ev_loop_new (unsigned int flags)
751	{	945	{
752	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	946	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
753		947
754	memset (loop, 0, sizeof (struct ev_loop));	948	memset (loop, 0, sizeof (struct ev_loop));
755		949
756	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
757		951
758	if (ev_method (EV_A))	952	if (ev_backend (EV_A))
759	return loop;	953	return loop;
760		954
761	return 0;	955	return 0;
762	}	956	}
763		957
…		…
769	}	963	}
770		964
771	void	965	void
772	ev_loop_fork (EV_P)	966	ev_loop_fork (EV_P)
773	{	967	{
774	loop_fork (EV_A);	968	postfork = 1;
775	}	969	}
776		970
777	#endif	971	#endif
778		972
779	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
780	struct ev_loop default_loop_struct;
781	static struct ev_loop *default_loop;
782
783	struct ev_loop *	974	struct ev_loop *
		975	ev_default_loop_init (unsigned int flags)
784	#else	976	#else
785	static int default_loop;
786
787	int	977	int
		978	ev_default_loop (unsigned int flags)
788	#endif	979	#endif
789	ev_default_loop (int methods)
790	{	980	{
791	if (sigpipe [0] == sigpipe [1])	981	if (sigpipe [0] == sigpipe [1])
792	if (pipe (sigpipe))	982	if (pipe (sigpipe))
793	return 0;	983	return 0;
794		984
795	if (!default_loop)	985	if (!ev_default_loop_ptr)
796	{	986	{
797	#if EV_MULTIPLICITY	987	#if EV_MULTIPLICITY
798	struct ev_loop *loop = default_loop = &default_loop_struct;	988	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
799	#else	989	#else
800	default_loop = 1;	990	ev_default_loop_ptr = 1;
801	#endif	991	#endif
802		992
803	loop_init (EV_A_ methods);	993	loop_init (EV_A_ flags);
804		994
805	if (ev_method (EV_A))	995	if (ev_backend (EV_A))
806	{	996	{
807	ev_watcher_init (&sigev, sigcb);
808	ev_set_priority (&sigev, EV_MAXPRI);
809	siginit (EV_A);	997	siginit (EV_A);
810		998
811	#ifndef WIN32	999	#ifndef _WIN32
812	ev_signal_init (&childev, childcb, SIGCHLD);	1000	ev_signal_init (&childev, childcb, SIGCHLD);
813	ev_set_priority (&childev, EV_MAXPRI);	1001	ev_set_priority (&childev, EV_MAXPRI);
814	ev_signal_start (EV_A_ &childev);	1002	ev_signal_start (EV_A_ &childev);
815	ev_unref (EV_A); /* child watcher should not keep loop alive */	1003	ev_unref (EV_A); /* child watcher should not keep loop alive */
816	#endif	1004	#endif
817	}	1005	}
818	else	1006	else
819	default_loop = 0;	1007	ev_default_loop_ptr = 0;
820	}	1008	}
821		1009
822	return default_loop;	1010	return ev_default_loop_ptr;
823	}	1011	}
824		1012
825	void	1013	void
826	ev_default_destroy (void)	1014	ev_default_destroy (void)
827	{	1015	{
828	#if EV_MULTIPLICITY	1016	#if EV_MULTIPLICITY
829	struct ev_loop *loop = default_loop;	1017	struct ev_loop *loop = ev_default_loop_ptr;
830	#endif	1018	#endif
831		1019
		1020	#ifndef _WIN32
832	ev_ref (EV_A); /* child watcher */	1021	ev_ref (EV_A); /* child watcher */
833	ev_signal_stop (EV_A_ &childev);	1022	ev_signal_stop (EV_A_ &childev);
		1023	#endif
834		1024
835	ev_ref (EV_A); /* signal watcher */	1025	ev_ref (EV_A); /* signal watcher */
836	ev_io_stop (EV_A_ &sigev);	1026	ev_io_stop (EV_A_ &sigev);
837		1027
838	close (sigpipe [0]); sigpipe [0] = 0;	1028	close (sigpipe [0]); sigpipe [0] = 0;
…		…
843		1033
844	void	1034	void
845	ev_default_fork (void)	1035	ev_default_fork (void)
846	{	1036	{
847	#if EV_MULTIPLICITY	1037	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	1038	struct ev_loop *loop = ev_default_loop_ptr;
849	#endif	1039	#endif
850		1040
851	loop_fork (EV_A);	1041	if (backend)
852		1042	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	}	1043	}
861		1044
862	/*****************************************************************************/	1045	/*****************************************************************************/
863		1046
864	static void	1047	static int
		1048	any_pending (EV_P)
		1049	{
		1050	int pri;
		1051
		1052	for (pri = NUMPRI; pri--; )
		1053	if (pendingcnt [pri])
		1054	return 1;
		1055
		1056	return 0;
		1057	}
		1058
		1059	inline void
865	call_pending (EV_P)	1060	call_pending (EV_P)
866	{	1061	{
867	int pri;	1062	int pri;
868		1063
869	for (pri = NUMPRI; pri--; )	1064	for (pri = NUMPRI; pri--; )
870	while (pendingcnt [pri])	1065	while (pendingcnt [pri])
871	{	1066	{
872	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1067	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
873		1068
874	if (p->w)	1069	if (expect_true (p->w))
875	{	1070	{
876	p->w->pending = 0;	1071	p->w->pending = 0;
877	p->w->cb (EV_A_ p->w, p->events);	1072	EV_CB_INVOKE (p->w, p->events);
878	}	1073	}
879	}	1074	}
880	}	1075	}
881		1076
882	static void	1077	inline void
883	timers_reify (EV_P)	1078	timers_reify (EV_P)
884	{	1079	{
885	while (timercnt && ((WT)timers [0])->at <= mn_now)	1080	while (timercnt && ((WT)timers [0])->at <= mn_now)
886	{	1081	{
887	struct ev_timer *w = timers [0];	1082	struct ev_timer *w = timers [0];
…		…
890		1085
891	/* first reschedule or stop timer */	1086	/* first reschedule or stop timer */
892	if (w->repeat)	1087	if (w->repeat)
893	{	1088	{
894	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1089	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1090
895	((WT)w)->at = mn_now + w->repeat;	1091	((WT)w)->at += w->repeat;
		1092	if (((WT)w)->at < mn_now)
		1093	((WT)w)->at = mn_now;
		1094
896	downheap ((WT *)timers, timercnt, 0);	1095	downheap ((WT *)timers, timercnt, 0);
897	}	1096	}
898	else	1097	else
899	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1098	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
900		1099
901	event (EV_A_ (W)w, EV_TIMEOUT);	1100	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
902	}	1101	}
903	}	1102	}
904		1103
905	static void	1104	#if EV_PERIODICS
		1105	inline void
906	periodics_reify (EV_P)	1106	periodics_reify (EV_P)
907	{	1107	{
908	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1108	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
909	{	1109	{
910	struct ev_periodic *w = periodics [0];	1110	struct ev_periodic *w = periodics [0];
911		1111
912	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1112	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
913		1113
914	/* first reschedule or stop timer */	1114	/* first reschedule or stop timer */
915	if (w->interval)	1115	if (w->reschedule_cb)
916	{	1116	{
		1117	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1118	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1119	downheap ((WT *)periodics, periodiccnt, 0);
		1120	}
		1121	else if (w->interval)
		1122	{
917	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1123	((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));	1124	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);	1125	downheap ((WT *)periodics, periodiccnt, 0);
920	}	1126	}
921	else	1127	else
922	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1128	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
923		1129
924	event (EV_A_ (W)w, EV_PERIODIC);	1130	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
925	}	1131	}
926	}	1132	}
927		1133
928	static void	1134	static void
929	periodics_reschedule (EV_P)	1135	periodics_reschedule (EV_P)
…		…
933	/* adjust periodics after time jump */	1139	/* adjust periodics after time jump */
934	for (i = 0; i < periodiccnt; ++i)	1140	for (i = 0; i < periodiccnt; ++i)
935	{	1141	{
936	struct ev_periodic *w = periodics [i];	1142	struct ev_periodic *w = periodics [i];
937		1143
		1144	if (w->reschedule_cb)
		1145	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
938	if (w->interval)	1146	else if (w->interval)
939	{
940	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1147	((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	}	1148	}
		1149
		1150	/* now rebuild the heap */
		1151	for (i = periodiccnt >> 1; i--; )
		1152	downheap ((WT *)periodics, periodiccnt, i);
951	}	1153	}
		1154	#endif
952		1155
953	inline int	1156	inline int
954	time_update_monotonic (EV_P)	1157	time_update_monotonic (EV_P)
955	{	1158	{
956	mn_now = get_clock ();	1159	mn_now = get_clock ();
957		1160
958	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1161	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
959	{	1162	{
960	rt_now = rtmn_diff + mn_now;	1163	ev_rt_now = rtmn_diff + mn_now;
961	return 0;	1164	return 0;
962	}	1165	}
963	else	1166	else
964	{	1167	{
965	now_floor = mn_now;	1168	now_floor = mn_now;
966	rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
967	return 1;	1170	return 1;
968	}	1171	}
969	}	1172	}
970		1173
971	static void	1174	inline void
972	time_update (EV_P)	1175	time_update (EV_P)
973	{	1176	{
974	int i;	1177	int i;
975		1178
976	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
…		…
980	{	1183	{
981	ev_tstamp odiff = rtmn_diff;	1184	ev_tstamp odiff = rtmn_diff;
982		1185
983	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1186	for (i = 4; --i; ) /* loop a few times, before making important decisions */
984	{	1187	{
985	rtmn_diff = rt_now - mn_now;	1188	rtmn_diff = ev_rt_now - mn_now;
986		1189
987	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1190	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
988	return; /* all is well */	1191	return; /* all is well */
989		1192
990	rt_now = ev_time ();	1193	ev_rt_now = ev_time ();
991	mn_now = get_clock ();	1194	mn_now = get_clock ();
992	now_floor = mn_now;	1195	now_floor = mn_now;
993	}	1196	}
994		1197
		1198	# if EV_PERIODICS
995	periodics_reschedule (EV_A);	1199	periodics_reschedule (EV_A);
		1200	# endif
996	/* no timer adjustment, as the monotonic clock doesn't jump */	1201	/* no timer adjustment, as the monotonic clock doesn't jump */
997	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1202	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
998	}	1203	}
999	}	1204	}
1000	else	1205	else
1001	#endif	1206	#endif
1002	{	1207	{
1003	rt_now = ev_time ();	1208	ev_rt_now = ev_time ();
1004		1209
1005	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1210	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1006	{	1211	{
		1212	#if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1213	periodics_reschedule (EV_A);
		1214	#endif
1008		1215
1009	/* adjust timers. this is easy, as the offset is the same for all */	1216	/* adjust timers. this is easy, as the offset is the same for all */
1010	for (i = 0; i < timercnt; ++i)	1217	for (i = 0; i < timercnt; ++i)
1011	((WT)timers [i])->at += rt_now - mn_now;	1218	((WT)timers [i])->at += ev_rt_now - mn_now;
1012	}	1219	}
1013		1220
1014	mn_now = rt_now;	1221	mn_now = ev_rt_now;
1015	}	1222	}
1016	}	1223	}
1017		1224
1018	void	1225	void
1019	ev_ref (EV_P)	1226	ev_ref (EV_P)
…		…
1033	ev_loop (EV_P_ int flags)	1240	ev_loop (EV_P_ int flags)
1034	{	1241	{
1035	double block;	1242	double block;
1036	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1243	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1037		1244
1038	do	1245	while (activecnt)
1039	{	1246	{
1040	/* queue check watchers (and execute them) */	1247	/* queue check watchers (and execute them) */
1041	if (expect_false (preparecnt))	1248	if (expect_false (preparecnt))
1042	{	1249	{
1043	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1250	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1044	call_pending (EV_A);	1251	call_pending (EV_A);
1045	}	1252	}
1046		1253
		1254	/* we might have forked, so reify kernel state if necessary */
		1255	if (expect_false (postfork))
		1256	loop_fork (EV_A);
		1257
1047	/* update fd-related kernel structures */	1258	/* update fd-related kernel structures */
1048	fd_reify (EV_A);	1259	fd_reify (EV_A);
1049		1260
1050	/* calculate blocking time */	1261	/* calculate blocking time */
1051		1262
1052	/* we only need this for !monotonic clockor timers, but as we basically	1263	/* we only need this for !monotonic clock or timers, but as we basically
1053	always have timers, we just calculate it always */	1264	always have timers, we just calculate it always */
1054	#if EV_USE_MONOTONIC	1265	#if EV_USE_MONOTONIC
1055	if (expect_true (have_monotonic))	1266	if (expect_true (have_monotonic))
1056	time_update_monotonic (EV_A);	1267	time_update_monotonic (EV_A);
1057	else	1268	else
1058	#endif	1269	#endif
1059	{	1270	{
1060	rt_now = ev_time ();	1271	ev_rt_now = ev_time ();
1061	mn_now = rt_now;	1272	mn_now = ev_rt_now;
1062	}	1273	}
1063		1274
1064	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1275	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1065	block = 0.;	1276	block = 0.;
1066	else	1277	else
1067	{	1278	{
1068	block = MAX_BLOCKTIME;	1279	block = MAX_BLOCKTIME;
1069		1280
1070	if (timercnt)	1281	if (timercnt)
1071	{	1282	{
1072	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1283	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1073	if (block > to) block = to;	1284	if (block > to) block = to;
1074	}	1285	}
1075		1286
		1287	#if EV_PERIODICS
1076	if (periodiccnt)	1288	if (periodiccnt)
1077	{	1289	{
1078	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1290	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1079	if (block > to) block = to;	1291	if (block > to) block = to;
1080	}	1292	}
		1293	#endif
1081		1294
1082	if (block < 0.) block = 0.;	1295	if (expect_false (block < 0.)) block = 0.;
1083	}	1296	}
1084		1297
1085	method_poll (EV_A_ block);	1298	backend_poll (EV_A_ block);
1086		1299
1087	/* update rt_now, do magic */	1300	/* update ev_rt_now, do magic */
1088	time_update (EV_A);	1301	time_update (EV_A);
1089		1302
1090	/* queue pending timers and reschedule them */	1303	/* queue pending timers and reschedule them */
1091	timers_reify (EV_A); /* relative timers called last */	1304	timers_reify (EV_A); /* relative timers called last */
		1305	#if EV_PERIODICS
1092	periodics_reify (EV_A); /* absolute timers called first */	1306	periodics_reify (EV_A); /* absolute timers called first */
		1307	#endif
1093		1308
1094	/* queue idle watchers unless io or timers are pending */	1309	/* queue idle watchers unless io or timers are pending */
1095	if (!pendingcnt)	1310	if (idlecnt && !any_pending (EV_A))
1096	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1311	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1097		1312
1098	/* queue check watchers, to be executed first */	1313	/* queue check watchers, to be executed first */
1099	if (checkcnt)	1314	if (expect_false (checkcnt))
1100	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1315	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1101		1316
1102	call_pending (EV_A);	1317	call_pending (EV_A);
		1318
		1319	if (expect_false (loop_done))
		1320	break;
1103	}	1321	}
1104	while (activecnt && !loop_done);
1105		1322
1106	if (loop_done != 2)	1323	if (loop_done != 2)
1107	loop_done = 0;	1324	loop_done = 0;
1108	}	1325	}
1109		1326
…		…
1169	void	1386	void
1170	ev_io_start (EV_P_ struct ev_io *w)	1387	ev_io_start (EV_P_ struct ev_io *w)
1171	{	1388	{
1172	int fd = w->fd;	1389	int fd = w->fd;
1173		1390
1174	if (ev_is_active (w))	1391	if (expect_false (ev_is_active (w)))
1175	return;	1392	return;
1176		1393
1177	assert (("ev_io_start called with negative fd", fd >= 0));	1394	assert (("ev_io_start called with negative fd", fd >= 0));
1178		1395
1179	ev_start (EV_A_ (W)w, 1);	1396	ev_start (EV_A_ (W)w, 1);
1180	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1397	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1181	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1398	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1182		1399
1183	fd_change (EV_A_ fd);	1400	fd_change (EV_A_ fd);
1184	}	1401	}
1185		1402
1186	void	1403	void
1187	ev_io_stop (EV_P_ struct ev_io *w)	1404	ev_io_stop (EV_P_ struct ev_io *w)
1188	{	1405	{
1189	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1190	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1191	return;	1408	return;
		1409
		1410	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1192		1411
1193	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1412	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1194	ev_stop (EV_A_ (W)w);	1413	ev_stop (EV_A_ (W)w);
1195		1414
1196	fd_change (EV_A_ w->fd);	1415	fd_change (EV_A_ w->fd);
1197	}	1416	}
1198		1417
1199	void	1418	void
1200	ev_timer_start (EV_P_ struct ev_timer *w)	1419	ev_timer_start (EV_P_ struct ev_timer *w)
1201	{	1420	{
1202	if (ev_is_active (w))	1421	if (expect_false (ev_is_active (w)))
1203	return;	1422	return;
1204		1423
1205	((WT)w)->at += mn_now;	1424	((WT)w)->at += mn_now;
1206		1425
1207	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1426	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1208		1427
1209	ev_start (EV_A_ (W)w, ++timercnt);	1428	ev_start (EV_A_ (W)w, ++timercnt);
1210	array_needsize (timers, timermax, timercnt, );	1429	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1211	timers [timercnt - 1] = w;	1430	timers [timercnt - 1] = w;
1212	upheap ((WT *)timers, timercnt - 1);	1431	upheap ((WT *)timers, timercnt - 1);
1213		1432
1214	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1433	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1215	}	1434	}
1216		1435
1217	void	1436	void
1218	ev_timer_stop (EV_P_ struct ev_timer *w)	1437	ev_timer_stop (EV_P_ struct ev_timer *w)
1219	{	1438	{
1220	ev_clear_pending (EV_A_ (W)w);	1439	ev_clear_pending (EV_A_ (W)w);
1221	if (!ev_is_active (w))	1440	if (expect_false (!ev_is_active (w)))
1222	return;	1441	return;
1223		1442
1224	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1443	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1225		1444
1226	if (((W)w)->active < timercnt--)	1445	if (expect_true (((W)w)->active < timercnt--))
1227	{	1446	{
1228	timers [((W)w)->active - 1] = timers [timercnt];	1447	timers [((W)w)->active - 1] = timers [timercnt];
1229	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1448	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1230	}	1449	}
1231		1450
1232	((WT)w)->at = w->repeat;	1451	((WT)w)->at -= mn_now;
1233		1452
1234	ev_stop (EV_A_ (W)w);	1453	ev_stop (EV_A_ (W)w);
1235	}	1454	}
1236		1455
1237	void	1456	void
…		…
1240	if (ev_is_active (w))	1459	if (ev_is_active (w))
1241	{	1460	{
1242	if (w->repeat)	1461	if (w->repeat)
1243	{	1462	{
1244	((WT)w)->at = mn_now + w->repeat;	1463	((WT)w)->at = mn_now + w->repeat;
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1464	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1465	}
1247	else	1466	else
1248	ev_timer_stop (EV_A_ w);	1467	ev_timer_stop (EV_A_ w);
1249	}	1468	}
1250	else if (w->repeat)	1469	else if (w->repeat)
		1470	{
		1471	w->at = w->repeat;
1251	ev_timer_start (EV_A_ w);	1472	ev_timer_start (EV_A_ w);
		1473	}
1252	}	1474	}
1253		1475
		1476	#if EV_PERIODICS
1254	void	1477	void
1255	ev_periodic_start (EV_P_ struct ev_periodic *w)	1478	ev_periodic_start (EV_P_ struct ev_periodic *w)
1256	{	1479	{
1257	if (ev_is_active (w))	1480	if (expect_false (ev_is_active (w)))
1258	return;	1481	return;
1259		1482
		1483	if (w->reschedule_cb)
		1484	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1485	else if (w->interval)
		1486	{
1260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1487	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 */	1488	/* 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;	1489	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1490	}
1265		1491
1266	ev_start (EV_A_ (W)w, ++periodiccnt);	1492	ev_start (EV_A_ (W)w, ++periodiccnt);
1267	array_needsize (periodics, periodicmax, periodiccnt, );	1493	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1268	periodics [periodiccnt - 1] = w;	1494	periodics [periodiccnt - 1] = w;
1269	upheap ((WT *)periodics, periodiccnt - 1);	1495	upheap ((WT *)periodics, periodiccnt - 1);
1270		1496
1271	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1497	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1272	}	1498	}
1273		1499
1274	void	1500	void
1275	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1501	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1276	{	1502	{
1277	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1278	if (!ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1279	return;	1505	return;
1280		1506
1281	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1507	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1282		1508
1283	if (((W)w)->active < periodiccnt--)	1509	if (expect_true (((W)w)->active < periodiccnt--))
1284	{	1510	{
1285	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1511	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1286	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1512	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1287	}	1513	}
1288		1514
1289	ev_stop (EV_A_ (W)w);	1515	ev_stop (EV_A_ (W)w);
1290	}	1516	}
1291		1517
1292	void	1518	void
		1519	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1520	{
		1521	/* TODO: use adjustheap and recalculation */
		1522	ev_periodic_stop (EV_A_ w);
		1523	ev_periodic_start (EV_A_ w);
		1524	}
		1525	#endif
		1526
		1527	void
1293	ev_idle_start (EV_P_ struct ev_idle *w)	1528	ev_idle_start (EV_P_ struct ev_idle *w)
1294	{	1529	{
1295	if (ev_is_active (w))	1530	if (expect_false (ev_is_active (w)))
1296	return;	1531	return;
1297		1532
1298	ev_start (EV_A_ (W)w, ++idlecnt);	1533	ev_start (EV_A_ (W)w, ++idlecnt);
1299	array_needsize (idles, idlemax, idlecnt, );	1534	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1300	idles [idlecnt - 1] = w;	1535	idles [idlecnt - 1] = w;
1301	}	1536	}
1302		1537
1303	void	1538	void
1304	ev_idle_stop (EV_P_ struct ev_idle *w)	1539	ev_idle_stop (EV_P_ struct ev_idle *w)
1305	{	1540	{
1306	ev_clear_pending (EV_A_ (W)w);	1541	ev_clear_pending (EV_A_ (W)w);
1307	if (ev_is_active (w))	1542	if (expect_false (!ev_is_active (w)))
1308	return;	1543	return;
1309		1544
1310	idles [((W)w)->active - 1] = idles [--idlecnt];	1545	idles [((W)w)->active - 1] = idles [--idlecnt];
1311	ev_stop (EV_A_ (W)w);	1546	ev_stop (EV_A_ (W)w);
1312	}	1547	}
1313		1548
1314	void	1549	void
1315	ev_prepare_start (EV_P_ struct ev_prepare *w)	1550	ev_prepare_start (EV_P_ struct ev_prepare *w)
1316	{	1551	{
1317	if (ev_is_active (w))	1552	if (expect_false (ev_is_active (w)))
1318	return;	1553	return;
1319		1554
1320	ev_start (EV_A_ (W)w, ++preparecnt);	1555	ev_start (EV_A_ (W)w, ++preparecnt);
1321	array_needsize (prepares, preparemax, preparecnt, );	1556	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1322	prepares [preparecnt - 1] = w;	1557	prepares [preparecnt - 1] = w;
1323	}	1558	}
1324		1559
1325	void	1560	void
1326	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1561	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1327	{	1562	{
1328	ev_clear_pending (EV_A_ (W)w);	1563	ev_clear_pending (EV_A_ (W)w);
1329	if (ev_is_active (w))	1564	if (expect_false (!ev_is_active (w)))
1330	return;	1565	return;
1331		1566
1332	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1567	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1333	ev_stop (EV_A_ (W)w);	1568	ev_stop (EV_A_ (W)w);
1334	}	1569	}
1335		1570
1336	void	1571	void
1337	ev_check_start (EV_P_ struct ev_check *w)	1572	ev_check_start (EV_P_ struct ev_check *w)
1338	{	1573	{
1339	if (ev_is_active (w))	1574	if (expect_false (ev_is_active (w)))
1340	return;	1575	return;
1341		1576
1342	ev_start (EV_A_ (W)w, ++checkcnt);	1577	ev_start (EV_A_ (W)w, ++checkcnt);
1343	array_needsize (checks, checkmax, checkcnt, );	1578	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1344	checks [checkcnt - 1] = w;	1579	checks [checkcnt - 1] = w;
1345	}	1580	}
1346		1581
1347	void	1582	void
1348	ev_check_stop (EV_P_ struct ev_check *w)	1583	ev_check_stop (EV_P_ struct ev_check *w)
1349	{	1584	{
1350	ev_clear_pending (EV_A_ (W)w);	1585	ev_clear_pending (EV_A_ (W)w);
1351	if (ev_is_active (w))	1586	if (expect_false (!ev_is_active (w)))
1352	return;	1587	return;
1353		1588
1354	checks [((W)w)->active - 1] = checks [--checkcnt];	1589	checks [((W)w)->active - 1] = checks [--checkcnt];
1355	ev_stop (EV_A_ (W)w);	1590	ev_stop (EV_A_ (W)w);
1356	}	1591	}
…		…
1361		1596
1362	void	1597	void
1363	ev_signal_start (EV_P_ struct ev_signal *w)	1598	ev_signal_start (EV_P_ struct ev_signal *w)
1364	{	1599	{
1365	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1366	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1601	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1367	#endif	1602	#endif
1368	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1369	return;	1604	return;
1370		1605
1371	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1606	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1372		1607
1373	ev_start (EV_A_ (W)w, 1);	1608	ev_start (EV_A_ (W)w, 1);
1374	array_needsize (signals, signalmax, w->signum, signals_init);	1609	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1375	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1610	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1376		1611
1377	if (!((WL)w)->next)	1612	if (!((WL)w)->next)
1378	{	1613	{
1379	#if WIN32	1614	#if _WIN32
1380	signal (w->signum, sighandler);	1615	signal (w->signum, sighandler);
1381	#else	1616	#else
1382	struct sigaction sa;	1617	struct sigaction sa;
1383	sa.sa_handler = sighandler;	1618	sa.sa_handler = sighandler;
1384	sigfillset (&sa.sa_mask);	1619	sigfillset (&sa.sa_mask);
…		…
1390		1625
1391	void	1626	void
1392	ev_signal_stop (EV_P_ struct ev_signal *w)	1627	ev_signal_stop (EV_P_ struct ev_signal *w)
1393	{	1628	{
1394	ev_clear_pending (EV_A_ (W)w);	1629	ev_clear_pending (EV_A_ (W)w);
1395	if (!ev_is_active (w))	1630	if (expect_false (!ev_is_active (w)))
1396	return;	1631	return;
1397		1632
1398	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1633	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1399	ev_stop (EV_A_ (W)w);	1634	ev_stop (EV_A_ (W)w);
1400		1635
…		…
1404		1639
1405	void	1640	void
1406	ev_child_start (EV_P_ struct ev_child *w)	1641	ev_child_start (EV_P_ struct ev_child *w)
1407	{	1642	{
1408	#if EV_MULTIPLICITY	1643	#if EV_MULTIPLICITY
1409	assert (("child watchers are only supported in the default loop", loop == default_loop));	1644	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1410	#endif	1645	#endif
1411	if (ev_is_active (w))	1646	if (expect_false (ev_is_active (w)))
1412	return;	1647	return;
1413		1648
1414	ev_start (EV_A_ (W)w, 1);	1649	ev_start (EV_A_ (W)w, 1);
1415	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1650	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1416	}	1651	}
1417		1652
1418	void	1653	void
1419	ev_child_stop (EV_P_ struct ev_child *w)	1654	ev_child_stop (EV_P_ struct ev_child *w)
1420	{	1655	{
1421	ev_clear_pending (EV_A_ (W)w);	1656	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1657	if (expect_false (!ev_is_active (w)))
1423	return;	1658	return;
1424		1659
1425	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1660	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1426	ev_stop (EV_A_ (W)w);	1661	ev_stop (EV_A_ (W)w);
1427	}	1662	}
…		…
1462	}	1697	}
1463		1698
1464	void	1699	void
1465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1700	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1466	{	1701	{
1467	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1702	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1468		1703
1469	if (!once)	1704	if (expect_false (!once))
		1705	{
1470	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1706	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1471	else	1707	return;
1472	{	1708	}
		1709
1473	once->cb = cb;	1710	once->cb = cb;
1474	once->arg = arg;	1711	once->arg = arg;
1475		1712
1476	ev_watcher_init (&once->io, once_cb_io);	1713	ev_init (&once->io, once_cb_io);
1477	if (fd >= 0)	1714	if (fd >= 0)
1478	{	1715	{
1479	ev_io_set (&once->io, fd, events);	1716	ev_io_set (&once->io, fd, events);
1480	ev_io_start (EV_A_ &once->io);	1717	ev_io_start (EV_A_ &once->io);
1481	}	1718	}
1482		1719
1483	ev_watcher_init (&once->to, once_cb_to);	1720	ev_init (&once->to, once_cb_to);
1484	if (timeout >= 0.)	1721	if (timeout >= 0.)
1485	{	1722	{
1486	ev_timer_set (&once->to, timeout, 0.);	1723	ev_timer_set (&once->to, timeout, 0.);
1487	ev_timer_start (EV_A_ &once->to);	1724	ev_timer_start (EV_A_ &once->to);
1488	}
1489	}	1725	}
1490	}	1726	}
1491		1727
		1728	#ifdef __cplusplus
		1729	}
		1730	#endif
		1731

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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 1.133 by root, Fri Nov 23 11:32:22 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 1.133 by root, Fri Nov 23 11:32:22 2007 UTC