[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 1.135 by root, Sat Nov 24 06:23:27 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
		402	if (expect_false (!w_->cb))
		403	return;
		404
323	w->pending = ++pendingcnt [ABSPRI (w)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
324	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	406	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
325	pendings [ABSPRI (w)][w->pending - 1].w = w;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
326	pendings [ABSPRI (w)][w->pending - 1].events = events;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
327	}	409	}
328		410
329	static void	411	static void
330	queue_events (EV_P_ W *events, int eventcnt, int type)	412	queue_events (EV_P_ W *events, int eventcnt, int type)
331	{	413	{
332	int i;	414	int i;
333		415
334	for (i = 0; i < eventcnt; ++i)	416	for (i = 0; i < eventcnt; ++i)
335	event (EV_A_ events [i], type);	417	ev_feed_event (EV_A_ events [i], type);
336	}	418	}
337		419
338	static void	420	inline void
339	fd_event (EV_P_ int fd, int events)	421	fd_event (EV_P_ int fd, int revents)
340	{	422	{
341	ANFD *anfd = anfds + fd;	423	ANFD *anfd = anfds + fd;
342	struct ev_io *w;	424	struct ev_io *w;
343		425
344	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	426	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
345	{	427	{
346	int ev = w->events & events;	428	int ev = w->events & revents;
347		429
348	if (ev)	430	if (ev)
349	event (EV_A_ (W)w, ev);	431	ev_feed_event (EV_A_ (W)w, ev);
350	}	432	}
		433	}
		434
		435	void
		436	ev_feed_fd_event (EV_P_ int fd, int revents)
		437	{
		438	fd_event (EV_A_ fd, revents);
351	}	439	}
352		440
353	/*****************************************************************************/	441	/*****************************************************************************/
354		442
355	static void	443	inline void
356	fd_reify (EV_P)	444	fd_reify (EV_P)
357	{	445	{
358	int i;	446	int i;
359		447
360	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
366	int events = 0;	454	int events = 0;
367		455
368	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	456	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
369	events \|= w->events;	457	events \|= w->events;
370		458
		459	#if EV_SELECT_IS_WINSOCKET
		460	if (events)
		461	{
		462	unsigned long argp;
		463	anfd->handle = _get_osfhandle (fd);
		464	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		465	}
		466	#endif
		467
371	anfd->reify = 0;	468	anfd->reify = 0;
372		469
373	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
374	anfd->events = events;	471	anfd->events = events;
375	}	472	}
376		473
377	fdchangecnt = 0;	474	fdchangecnt = 0;
378	}	475	}
379		476
380	static void	477	static void
381	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
382	{	479	{
383	if (anfds [fd].reify \|\| fdchangecnt < 0)	480	if (expect_false (anfds [fd].reify))
384	return;	481	return;
385		482
386	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
387		484
388	++fdchangecnt;	485	++fdchangecnt;
389	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
390	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
391	}	488	}
392		489
393	static void	490	static void
394	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
396	struct ev_io *w;	493	struct ev_io *w;
397		494
398	while ((w = (struct ev_io *)anfds [fd].head))	495	while ((w = (struct ev_io *)anfds [fd].head))
399	{	496	{
400	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
401	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	498	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
402	}	499	}
		500	}
		501
		502	inline int
		503	fd_valid (int fd)
		504	{
		505	#ifdef _WIN32
		506	return _get_osfhandle (fd) != -1;
		507	#else
		508	return fcntl (fd, F_GETFD) != -1;
		509	#endif
403	}	510	}
404		511
405	/* called on EBADF to verify fds */	512	/* called on EBADF to verify fds */
406	static void	513	static void
407	fd_ebadf (EV_P)	514	fd_ebadf (EV_P)
408	{	515	{
409	int fd;	516	int fd;
410		517
411	for (fd = 0; fd < anfdmax; ++fd)	518	for (fd = 0; fd < anfdmax; ++fd)
412	if (anfds [fd].events)	519	if (anfds [fd].events)
413	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	520	if (!fd_valid (fd) == -1 && errno == EBADF)
414	fd_kill (EV_A_ fd);	521	fd_kill (EV_A_ fd);
415	}	522	}
416		523
417	/* called on ENOMEM in select/poll to kill some fds and retry */	524	/* called on ENOMEM in select/poll to kill some fds and retry */
418	static void	525	static void
…		…
426	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
427	return;	534	return;
428	}	535	}
429	}	536	}
430		537
431	/* susually called after fork if method needs to re-arm all fds from scratch */	538	/* usually called after fork if backend needs to re-arm all fds from scratch */
432	static void	539	static void
433	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
434	{	541	{
435	int fd;	542	int fd;
436		543
…		…
484		591
485	heap [k] = w;	592	heap [k] = w;
486	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
487	}	594	}
488		595
		596	inline void
		597	adjustheap (WT *heap, int N, int k)
		598	{
		599	upheap (heap, k);
		600	downheap (heap, N, k);
		601	}
		602
489	/*****************************************************************************/	603	/*****************************************************************************/
490		604
491	typedef struct	605	typedef struct
492	{	606	{
493	WL head;	607	WL head;
…		…
514	}	628	}
515		629
516	static void	630	static void
517	sighandler (int signum)	631	sighandler (int signum)
518	{	632	{
519	#if WIN32	633	#if _WIN32
520	signal (signum, sighandler);	634	signal (signum, sighandler);
521	#endif	635	#endif
522		636
523	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
524		638
…		…
529	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
530	errno = old_errno;	644	errno = old_errno;
531	}	645	}
532	}	646	}
533		647
		648	void
		649	ev_feed_signal_event (EV_P_ int signum)
		650	{
		651	WL w;
		652
		653	#if EV_MULTIPLICITY
		654	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		655	#endif
		656
		657	--signum;
		658
		659	if (signum < 0 \|\| signum >= signalmax)
		660	return;
		661
		662	signals [signum].gotsig = 0;
		663
		664	for (w = signals [signum].head; w; w = w->next)
		665	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		666	}
		667
534	static void	668	static void
535	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
536	{	670	{
537	WL w;
538	int signum;	671	int signum;
539		672
540	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
541	gotsig = 0;	674	gotsig = 0;
542		675
543	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
544	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
545	{	678	ev_feed_signal_event (EV_A_ signum + 1);
546	signals [signum].gotsig = 0;	679	}
547		680
548	for (w = signals [signum].head; w; w = w->next)	681	static void
549	event (EV_A_ (W)w, EV_SIGNAL);	682	fd_intern (int fd)
550	}	683	{
		684	#ifdef _WIN32
		685	int arg = 1;
		686	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		687	#else
		688	fcntl (fd, F_SETFD, FD_CLOEXEC);
		689	fcntl (fd, F_SETFL, O_NONBLOCK);
		690	#endif
551	}	691	}
552		692
553	static void	693	static void
554	siginit (EV_P)	694	siginit (EV_P)
555	{	695	{
556	#ifndef WIN32	696	fd_intern (sigpipe [0]);
557	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	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		698
565	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
566	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
567	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
568	}	702	}
569		703
570	/*****************************************************************************/	704	/*****************************************************************************/
571		705
572	#ifndef WIN32
573
574	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
		707
		708	#ifndef _WIN32
		709
575	static struct ev_signal childev;	710	static struct ev_signal childev;
576		711
577	#ifndef WCONTINUED	712	#ifndef WCONTINUED
578	# define WCONTINUED 0	713	# define WCONTINUED 0
579	#endif	714	#endif
…		…
587	if (w->pid == pid \|\| !w->pid)	722	if (w->pid == pid \|\| !w->pid)
588	{	723	{
589	ev_priority (w) = ev_priority (sw); /* need to do it now */	724	ev_priority (w) = ev_priority (sw); /* need to do it now */
590	w->rpid = pid;	725	w->rpid = pid;
591	w->rstatus = status;	726	w->rstatus = status;
592	event (EV_A_ (W)w, EV_CHILD);	727	ev_feed_event (EV_A_ (W)w, EV_CHILD);
593	}	728	}
594	}	729	}
595		730
596	static void	731	static void
597	childcb (EV_P_ struct ev_signal *sw, int revents)	732	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
599	int pid, status;	734	int pid, status;
600		735
601	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
602	{	737	{
603	/* make sure we are called again until all childs have been reaped */	738	/* make sure we are called again until all childs have been reaped */
		739	/* we need to do it this way so that the callback gets called before we continue */
604	event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
605		741
606	child_reap (EV_A_ sw, pid, pid, status);	742	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 */	743	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
608	}	744	}
609	}	745	}
610		746
611	#endif	747	#endif
612		748
613	/*****************************************************************************/	749	/*****************************************************************************/
614		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
615	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
616	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
617	#endif	756	#endif
618	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
619	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
639		778
640	/* return true if we are running with elevated privileges and should ignore env variables */	779	/* return true if we are running with elevated privileges and should ignore env variables */
641	static int	780	static int
642	enable_secure (void)	781	enable_secure (void)
643	{	782	{
644	#ifdef WIN32	783	#ifdef _WIN32
645	return 0;	784	return 0;
646	#else	785	#else
647	return getuid () != geteuid ()	786	return getuid () != geteuid ()
648	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
649	#endif	788	#endif
650	}	789	}
651		790
652	int	791	unsigned int
653	ev_method (EV_P)	792	ev_supported_backends (void)
654	{	793	{
655	return method;	794	unsigned int flags = 0;
656	}
657		795
658	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
659	loop_init (EV_P_ int methods)	797	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		798	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		799	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		800	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		801
		802	return flags;
		803	}
		804
		805	unsigned int
		806	ev_recommended_backends (void)
660	{	807	{
661	if (!method)	808	unsigned int flags = ev_supported_backends ();
		809
		810	#ifndef __NetBSD__
		811	/* kqueue is borked on everything but netbsd apparently */
		812	/* it usually doesn't work correctly on anything but sockets and pipes */
		813	flags &= ~EVBACKEND_KQUEUE;
		814	#endif
		815	#ifdef __APPLE__
		816	// flags &= ~EVBACKEND_KQUEUE; for documentation
		817	flags &= ~EVBACKEND_POLL;
		818	#endif
		819
		820	return flags;
		821	}
		822
		823	unsigned int
		824	ev_embeddable_backends (void)
		825	{
		826	return EVBACKEND_EPOLL
		827	\| EVBACKEND_KQUEUE
		828	\| EVBACKEND_PORT;
		829	}
		830
		831	unsigned int
		832	ev_backend (EV_P)
		833	{
		834	return backend;
		835	}
		836
		837	static void
		838	loop_init (EV_P_ unsigned int flags)
		839	{
		840	if (!backend)
662	{	841	{
663	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
664	{	843	{
665	struct timespec ts;	844	struct timespec ts;
666	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
667	have_monotonic = 1;	846	have_monotonic = 1;
668	}	847	}
669	#endif	848	#endif
670		849
671	rt_now = ev_time ();	850	ev_rt_now = ev_time ();
672	mn_now = get_clock ();	851	mn_now = get_clock ();
673	now_floor = mn_now;	852	now_floor = mn_now;
674	rtmn_diff = rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
675		854
676	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
677	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
678	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
679	else
680	methods = EVMETHOD_ANY;
681		859
682	method = 0;	860	if (!(flags & 0x0000ffffUL))
683	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
684	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	862
		863	backend = 0;
		864	#if EV_USE_PORT
		865	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
685	#endif	866	#endif
686	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
687	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
688	#endif	869	#endif
689	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
690	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
691	#endif	872	#endif
692	#if EV_USE_POLL	873	#if EV_USE_POLL
693	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
694	#endif	875	#endif
695	#if EV_USE_SELECT	876	#if EV_USE_SELECT
696	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
697	#endif	878	#endif
698	}
699	}
700		879
701	void	880	ev_init (&sigev, sigcb);
		881	ev_set_priority (&sigev, EV_MAXPRI);
		882	}
		883	}
		884
		885	static void
702	loop_destroy (EV_P)	886	loop_destroy (EV_P)
703	{	887	{
704	int i;	888	int i;
705		889
706	#if EV_USE_WIN32	890	#if EV_USE_PORT
707	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
708	#endif	892	#endif
709	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
710	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
711	#endif	895	#endif
712	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
713	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
714	#endif	898	#endif
715	#if EV_USE_POLL	899	#if EV_USE_POLL
716	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
717	#endif	901	#endif
718	#if EV_USE_SELECT	902	#if EV_USE_SELECT
719	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
720	#endif	904	#endif
721		905
722	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
723	array_free (pending, [i]);	907	array_free (pending, [i]);
724		908
		909	/* have to use the microsoft-never-gets-it-right macro */
725	array_free (fdchange, );	910	array_free (fdchange, EMPTY0);
726	array_free (timer, );	911	array_free (timer, EMPTY0);
		912	#if EV_PERIODICS
727	array_free (periodic, );	913	array_free (periodic, EMPTY0);
		914	#endif
728	array_free (idle, );	915	array_free (idle, EMPTY0);
729	array_free (prepare, );	916	array_free (prepare, EMPTY0);
730	array_free (check, );	917	array_free (check, EMPTY0);
731		918
732	method = 0;	919	backend = 0;
733	/TODO/
734	}	920	}
735		921
736	void	922	static void
737	loop_fork (EV_P)	923	loop_fork (EV_P)
738	{	924	{
739	/TODO/	925	#if EV_USE_PORT
		926	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		927	#endif
		928	#if EV_USE_KQUEUE
		929	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		930	#endif
740	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
741	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
742	#endif	933	#endif
743	#if EV_USE_KQUEUE	934
744	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	935	if (ev_is_active (&sigev))
745	#endif	936	{
		937	/* default loop */
		938
		939	ev_ref (EV_A);
		940	ev_io_stop (EV_A_ &sigev);
		941	close (sigpipe [0]);
		942	close (sigpipe [1]);
		943
		944	while (pipe (sigpipe))
		945	syserr ("(libev) error creating pipe");
		946
		947	siginit (EV_A);
		948	}
		949
		950	postfork = 0;
746	}	951	}
747		952
748	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
749	struct ev_loop *	954	struct ev_loop *
750	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
751	{	956	{
752	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	957	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
753		958
754	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
755		960
756	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
757		962
758	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
759	return loop;	964	return loop;
760		965
761	return 0;	966	return 0;
762	}	967	}
763		968
…		…
769	}	974	}
770		975
771	void	976	void
772	ev_loop_fork (EV_P)	977	ev_loop_fork (EV_P)
773	{	978	{
774	loop_fork (EV_A);	979	postfork = 1;
775	}	980	}
776		981
777	#endif	982	#endif
778		983
779	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
780	struct ev_loop default_loop_struct;
781	static struct ev_loop *default_loop;
782
783	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
784	#else	987	#else
785	static int default_loop;
786
787	int	988	int
		989	ev_default_loop (unsigned int flags)
788	#endif	990	#endif
789	ev_default_loop (int methods)
790	{	991	{
791	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
792	if (pipe (sigpipe))	993	if (pipe (sigpipe))
793	return 0;	994	return 0;
794		995
795	if (!default_loop)	996	if (!ev_default_loop_ptr)
796	{	997	{
797	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
798	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
799	#else	1000	#else
800	default_loop = 1;	1001	ev_default_loop_ptr = 1;
801	#endif	1002	#endif
802		1003
803	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
804		1005
805	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
806	{	1007	{
807	ev_watcher_init (&sigev, sigcb);
808	ev_set_priority (&sigev, EV_MAXPRI);
809	siginit (EV_A);	1008	siginit (EV_A);
810		1009
811	#ifndef WIN32	1010	#ifndef _WIN32
812	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
813	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
814	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
815	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
816	#endif	1015	#endif
817	}	1016	}
818	else	1017	else
819	default_loop = 0;	1018	ev_default_loop_ptr = 0;
820	}	1019	}
821		1020
822	return default_loop;	1021	return ev_default_loop_ptr;
823	}	1022	}
824		1023
825	void	1024	void
826	ev_default_destroy (void)	1025	ev_default_destroy (void)
827	{	1026	{
828	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
829	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
830	#endif	1029	#endif
831		1030
		1031	#ifndef _WIN32
832	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
833	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
		1034	#endif
834		1035
835	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
836	ev_io_stop (EV_A_ &sigev);	1037	ev_io_stop (EV_A_ &sigev);
837		1038
838	close (sigpipe [0]); sigpipe [0] = 0;	1039	close (sigpipe [0]); sigpipe [0] = 0;
…		…
843		1044
844	void	1045	void
845	ev_default_fork (void)	1046	ev_default_fork (void)
846	{	1047	{
847	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
849	#endif	1050	#endif
850		1051
851	loop_fork (EV_A);	1052	if (backend)
852		1053	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	}	1054	}
861		1055
862	/*****************************************************************************/	1056	/*****************************************************************************/
863		1057
864	static void	1058	static int
		1059	any_pending (EV_P)
		1060	{
		1061	int pri;
		1062
		1063	for (pri = NUMPRI; pri--; )
		1064	if (pendingcnt [pri])
		1065	return 1;
		1066
		1067	return 0;
		1068	}
		1069
		1070	inline void
865	call_pending (EV_P)	1071	call_pending (EV_P)
866	{	1072	{
867	int pri;	1073	int pri;
868		1074
869	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
870	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
871	{	1077	{
872	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
873		1079
874	if (p->w)	1080	if (expect_true (p->w))
875	{	1081	{
876	p->w->pending = 0;	1082	p->w->pending = 0;
877	p->w->cb (EV_A_ p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
878	}	1084	}
879	}	1085	}
880	}	1086	}
881		1087
882	static void	1088	inline void
883	timers_reify (EV_P)	1089	timers_reify (EV_P)
884	{	1090	{
885	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
886	{	1092	{
887	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
890		1096
891	/* first reschedule or stop timer */	1097	/* first reschedule or stop timer */
892	if (w->repeat)	1098	if (w->repeat)
893	{	1099	{
894	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1100	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1101
895	((WT)w)->at = mn_now + w->repeat;	1102	((WT)w)->at += w->repeat;
		1103	if (((WT)w)->at < mn_now)
		1104	((WT)w)->at = mn_now;
		1105
896	downheap ((WT *)timers, timercnt, 0);	1106	downheap ((WT *)timers, timercnt, 0);
897	}	1107	}
898	else	1108	else
899	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1109	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
900		1110
901	event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
902	}	1112	}
903	}	1113	}
904		1114
905	static void	1115	#if EV_PERIODICS
		1116	inline void
906	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
907	{	1118	{
908	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
909	{	1120	{
910	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
911		1122
912	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
913		1124
914	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
915	if (w->interval)	1126	if (w->reschedule_cb)
916	{	1127	{
		1128	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1129	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1130	downheap ((WT *)periodics, periodiccnt, 0);
		1131	}
		1132	else if (w->interval)
		1133	{
917	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1134	((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));	1135	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);	1136	downheap ((WT *)periodics, periodiccnt, 0);
920	}	1137	}
921	else	1138	else
922	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1139	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
923		1140
924	event (EV_A_ (W)w, EV_PERIODIC);	1141	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
925	}	1142	}
926	}	1143	}
927		1144
928	static void	1145	static void
929	periodics_reschedule (EV_P)	1146	periodics_reschedule (EV_P)
…		…
933	/* adjust periodics after time jump */	1150	/* adjust periodics after time jump */
934	for (i = 0; i < periodiccnt; ++i)	1151	for (i = 0; i < periodiccnt; ++i)
935	{	1152	{
936	struct ev_periodic *w = periodics [i];	1153	struct ev_periodic *w = periodics [i];
937		1154
		1155	if (w->reschedule_cb)
		1156	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
938	if (w->interval)	1157	else if (w->interval)
939	{
940	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1158	((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	}	1159	}
		1160
		1161	/* now rebuild the heap */
		1162	for (i = periodiccnt >> 1; i--; )
		1163	downheap ((WT *)periodics, periodiccnt, i);
951	}	1164	}
		1165	#endif
952		1166
953	inline int	1167	inline int
954	time_update_monotonic (EV_P)	1168	time_update_monotonic (EV_P)
955	{	1169	{
956	mn_now = get_clock ();	1170	mn_now = get_clock ();
957		1171
958	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1172	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
959	{	1173	{
960	rt_now = rtmn_diff + mn_now;	1174	ev_rt_now = rtmn_diff + mn_now;
961	return 0;	1175	return 0;
962	}	1176	}
963	else	1177	else
964	{	1178	{
965	now_floor = mn_now;	1179	now_floor = mn_now;
966	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
967	return 1;	1181	return 1;
968	}	1182	}
969	}	1183	}
970		1184
971	static void	1185	inline void
972	time_update (EV_P)	1186	time_update (EV_P)
973	{	1187	{
974	int i;	1188	int i;
975		1189
976	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
980	{	1194	{
981	ev_tstamp odiff = rtmn_diff;	1195	ev_tstamp odiff = rtmn_diff;
982		1196
983	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1197	for (i = 4; --i; ) /* loop a few times, before making important decisions */
984	{	1198	{
985	rtmn_diff = rt_now - mn_now;	1199	rtmn_diff = ev_rt_now - mn_now;
986		1200
987	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1201	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
988	return; /* all is well */	1202	return; /* all is well */
989		1203
990	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
991	mn_now = get_clock ();	1205	mn_now = get_clock ();
992	now_floor = mn_now;	1206	now_floor = mn_now;
993	}	1207	}
994		1208
		1209	# if EV_PERIODICS
995	periodics_reschedule (EV_A);	1210	periodics_reschedule (EV_A);
		1211	# endif
996	/* no timer adjustment, as the monotonic clock doesn't jump */	1212	/* no timer adjustment, as the monotonic clock doesn't jump */
997	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1213	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
998	}	1214	}
999	}	1215	}
1000	else	1216	else
1001	#endif	1217	#endif
1002	{	1218	{
1003	rt_now = ev_time ();	1219	ev_rt_now = ev_time ();
1004		1220
1005	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1221	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1006	{	1222	{
		1223	#if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1224	periodics_reschedule (EV_A);
		1225	#endif
1008		1226
1009	/* adjust timers. this is easy, as the offset is the same for all */	1227	/* adjust timers. this is easy, as the offset is the same for all */
1010	for (i = 0; i < timercnt; ++i)	1228	for (i = 0; i < timercnt; ++i)
1011	((WT)timers [i])->at += rt_now - mn_now;	1229	((WT)timers [i])->at += ev_rt_now - mn_now;
1012	}	1230	}
1013		1231
1014	mn_now = rt_now;	1232	mn_now = ev_rt_now;
1015	}	1233	}
1016	}	1234	}
1017		1235
1018	void	1236	void
1019	ev_ref (EV_P)	1237	ev_ref (EV_P)
…		…
1030	static int loop_done;	1248	static int loop_done;
1031		1249
1032	void	1250	void
1033	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1034	{	1252	{
1035	double block;
1036	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1037		1256
1038	do	1257	while (activecnt)
1039	{	1258	{
1040	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1041	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1042	{	1261	{
1043	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1044	call_pending (EV_A);	1263	call_pending (EV_A);
1045	}	1264	}
1046		1265
		1266	/* we might have forked, so reify kernel state if necessary */
		1267	if (expect_false (postfork))
		1268	loop_fork (EV_A);
		1269
1047	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1048	fd_reify (EV_A);	1271	fd_reify (EV_A);
1049		1272
1050	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1051		1276
1052	/* we only need this for !monotonic clockor timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1053	always have timers, we just calculate it always */	1278	block = 0.; /* do not block at all */
		1279	else
		1280	{
		1281	/* update time to cancel out callback processing overhead */
1054	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1055	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1056	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1057	else	1285	else
1058	#endif	1286	#endif
1059	{	1287	{
1060	rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1061	mn_now = rt_now;	1289	mn_now = ev_rt_now;
1062	}	1290	}
1063		1291
1064	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1065	block = 0.;
1066	else
1067	{
1068	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1069		1293
1070	if (timercnt)	1294	if (timercnt)
1071	{	1295	{
1072	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1073	if (block > to) block = to;	1297	if (block > to) block = to;
1074	}	1298	}
1075		1299
		1300	#if EV_PERIODICS
1076	if (periodiccnt)	1301	if (periodiccnt)
1077	{	1302	{
1078	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1303	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1079	if (block > to) block = to;	1304	if (block > to) block = to;
1080	}	1305	}
		1306	#endif
1081		1307
1082	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1083	}	1309	}
1084		1310
1085	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1086		1313
1087	/* update rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1088	time_update (EV_A);	1315	time_update (EV_A);
1089		1316
1090	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
1091	timers_reify (EV_A); /* relative timers called last */	1318	timers_reify (EV_A); /* relative timers called last */
		1319	#if EV_PERIODICS
1092	periodics_reify (EV_A); /* absolute timers called first */	1320	periodics_reify (EV_A); /* absolute timers called first */
		1321	#endif
1093		1322
1094	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1095	if (!pendingcnt)	1324	if (idlecnt && !any_pending (EV_A))
1096	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1097		1326
1098	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1099	if (checkcnt)	1328	if (expect_false (checkcnt))
1100	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1101		1330
1102	call_pending (EV_A);	1331	call_pending (EV_A);
1103	}
1104	while (activecnt && !loop_done);
1105		1332
1106	if (loop_done != 2)	1333	if (expect_false (loop_done))
1107	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1108	}	1339	}
1109		1340
1110	void	1341	void
1111	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1112	{	1343	{
…		…
1169	void	1400	void
1170	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1171	{	1402	{
1172	int fd = w->fd;	1403	int fd = w->fd;
1173		1404
1174	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1175	return;	1406	return;
1176		1407
1177	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1178		1409
1179	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
1180	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1411	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1181	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1412	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1182		1413
1183	fd_change (EV_A_ fd);	1414	fd_change (EV_A_ fd);
1184	}	1415	}
1185		1416
1186	void	1417	void
1187	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1188	{	1419	{
1189	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1190	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1191	return;	1422	return;
		1423
		1424	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1192		1425
1193	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1194	ev_stop (EV_A_ (W)w);	1427	ev_stop (EV_A_ (W)w);
1195		1428
1196	fd_change (EV_A_ w->fd);	1429	fd_change (EV_A_ w->fd);
1197	}	1430	}
1198		1431
1199	void	1432	void
1200	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1201	{	1434	{
1202	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1203	return;	1436	return;
1204		1437
1205	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1206		1439
1207	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1440	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1208		1441
1209	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1210	array_needsize (timers, timermax, timercnt, );	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1211	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1212	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1213		1446
1214	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1215	}	1448	}
1216		1449
1217	void	1450	void
1218	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1219	{	1452	{
1220	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1221	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1222	return;	1455	return;
1223		1456
1224	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1225		1458
1226	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1227	{	1460	{
1228	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1229	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1230	}	1463	}
1231		1464
1232	((WT)w)->at = w->repeat;	1465	((WT)w)->at -= mn_now;
1233		1466
1234	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1235	}	1468	}
1236		1469
1237	void	1470	void
…		…
1240	if (ev_is_active (w))	1473	if (ev_is_active (w))
1241	{	1474	{
1242	if (w->repeat)	1475	if (w->repeat)
1243	{	1476	{
1244	((WT)w)->at = mn_now + w->repeat;	1477	((WT)w)->at = mn_now + w->repeat;
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1479	}
1247	else	1480	else
1248	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1249	}	1482	}
1250	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1251	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1252	}	1488	}
1253		1489
		1490	#if EV_PERIODICS
1254	void	1491	void
1255	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1256	{	1493	{
1257	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1258	return;	1495	return;
1259		1496
		1497	if (w->reschedule_cb)
		1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1499	else if (w->interval)
		1500	{
1260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1501	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 */	1502	/* 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;	1503	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1504	}
1265		1505
1266	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1267	array_needsize (periodics, periodicmax, periodiccnt, );	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1268	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1269	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1270		1510
1271	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1272	}	1512	}
1273		1513
1274	void	1514	void
1275	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1276	{	1516	{
1277	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1278	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1279	return;	1519	return;
1280		1520
1281	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1282		1522
1283	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1284	{	1524	{
1285	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1286	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1287	}	1527	}
1288		1528
1289	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1290	}	1530	}
1291		1531
1292	void	1532	void
		1533	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1534	{
		1535	/* TODO: use adjustheap and recalculation */
		1536	ev_periodic_stop (EV_A_ w);
		1537	ev_periodic_start (EV_A_ w);
		1538	}
		1539	#endif
		1540
		1541	void
1293	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1294	{	1543	{
1295	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1296	return;	1545	return;
1297		1546
1298	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1299	array_needsize (idles, idlemax, idlecnt, );	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1300	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1301	}	1550	}
1302		1551
1303	void	1552	void
1304	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1305	{	1554	{
1306	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1307	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1308	return;	1557	return;
1309		1558
1310	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1311	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1312	}	1561	}
1313		1562
1314	void	1563	void
1315	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1316	{	1565	{
1317	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1318	return;	1567	return;
1319		1568
1320	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1321	array_needsize (prepares, preparemax, preparecnt, );	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1322	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1323	}	1572	}
1324		1573
1325	void	1574	void
1326	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1327	{	1576	{
1328	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1329	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1330	return;	1579	return;
1331		1580
1332	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1333	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1334	}	1583	}
1335		1584
1336	void	1585	void
1337	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1338	{	1587	{
1339	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1340	return;	1589	return;
1341		1590
1342	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1343	array_needsize (checks, checkmax, checkcnt, );	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1344	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1345	}	1594	}
1346		1595
1347	void	1596	void
1348	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1349	{	1598	{
1350	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1351	if (ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1352	return;	1601	return;
1353		1602
1354	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1355	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1356	}	1605	}
…		…
1361		1610
1362	void	1611	void
1363	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1364	{	1613	{
1365	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1366	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1615	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1367	#endif	1616	#endif
1368	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1369	return;	1618	return;
1370		1619
1371	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1620	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1372		1621
1373	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1374	array_needsize (signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1375	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1376		1625
1377	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1378	{	1627	{
1379	#if WIN32	1628	#if _WIN32
1380	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1381	#else	1630	#else
1382	struct sigaction sa;	1631	struct sigaction sa;
1383	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1384	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1390		1639
1391	void	1640	void
1392	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1393	{	1642	{
1394	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1395	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1396	return;	1645	return;
1397		1646
1398	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1399	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1400		1649
…		…
1404		1653
1405	void	1654	void
1406	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1407	{	1656	{
1408	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1409	assert (("child watchers are only supported in the default loop", loop == default_loop));	1658	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1410	#endif	1659	#endif
1411	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1412	return;	1661	return;
1413		1662
1414	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1415	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1416	}	1665	}
1417		1666
1418	void	1667	void
1419	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1420	{	1669	{
1421	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1423	return;	1672	return;
1424		1673
1425	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1426	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1427	}	1676	}
		1677
		1678	#if EV_MULTIPLICITY
		1679	static void
		1680	embed_cb (EV_P_ struct ev_io *io, int revents)
		1681	{
		1682	struct ev_embed w = (struct ev_embed )(((char *)io) - offsetof (struct ev_embed, io));
		1683
		1684	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1685	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1686	}
		1687
		1688	void
		1689	ev_embed_start (EV_P_ struct ev_embed *w)
		1690	{
		1691	if (expect_false (ev_is_active (w)))
		1692	return;
		1693
		1694	{
		1695	struct ev_loop *loop = w->loop;
		1696	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1697	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1698	}
		1699
		1700	ev_io_start (EV_A_ &w->io);
		1701	ev_start (EV_A_ (W)w, 1);
		1702	}
		1703
		1704	void
		1705	ev_embed_stop (EV_P_ struct ev_embed *w)
		1706	{
		1707	ev_clear_pending (EV_A_ (W)w);
		1708	if (expect_false (!ev_is_active (w)))
		1709	return;
		1710
		1711	ev_io_stop (EV_A_ &w->io);
		1712	ev_stop (EV_A_ (W)w);
		1713	}
		1714	#endif
1428		1715
1429	/*****************************************************************************/	1716	/*****************************************************************************/
1430		1717
1431	struct ev_once	1718	struct ev_once
1432	{	1719	{
…		…
1462	}	1749	}
1463		1750
1464	void	1751	void
1465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1752	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1466	{	1753	{
1467	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1754	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1468		1755
1469	if (!once)	1756	if (expect_false (!once))
		1757	{
1470	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1471	else	1759	return;
1472	{	1760	}
		1761
1473	once->cb = cb;	1762	once->cb = cb;
1474	once->arg = arg;	1763	once->arg = arg;
1475		1764
1476	ev_watcher_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1477	if (fd >= 0)	1766	if (fd >= 0)
1478	{	1767	{
1479	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1480	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1481	}	1770	}
1482		1771
1483	ev_watcher_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1484	if (timeout >= 0.)	1773	if (timeout >= 0.)
1485	{	1774	{
1486	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1487	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1488	}
1489	}	1777	}
1490	}	1778	}
1491		1779
		1780	#ifdef __cplusplus
		1781	}
		1782	#endif
		1783

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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 1.135 by root, Sat Nov 24 06:23:27 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 1.135 by root, Sat Nov 24 06:23:27 2007 UTC