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

Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 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>
…		…
64	#include <assert.h>	108	#include <assert.h>
65	#include <errno.h>	109	#include <errno.h>
66	#include <sys/types.h>	110	#include <sys/types.h>
67	#include <time.h>	111	#include <time.h>
68		112
69	#ifndef PERL
70	# include <signal.h>	113	#include <signal.h>
71	#endif
72		114
73	#ifndef WIN32	115	#ifndef _WIN32
74	# include <unistd.h>	116	# include <unistd.h>
75	# include <sys/time.h>	117	# include <sys/time.h>
76	# 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
77	#endif	124	# endif
		125	#endif
		126
78	/**/	127	/**/
79		128
80	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
81	# 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
82	#endif	135	#endif
83		136
84	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
85	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
86	#endif	139	#endif
87		140
88	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
89	# 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
90	#endif	147	#endif
91		148
92	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
93	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
94	#endif	151	#endif
95		152
96	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
97	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
98	#endif	155	#endif
99		156
100	#ifndef EV_USE_WIN32
101	# ifdef WIN32
102	# define EV_USE_WIN32 0 /* it does not exist, use select */
103	# undef EV_USE_SELECT
104	# define EV_USE_SELECT 1
105	# else
106	# define EV_USE_WIN32 0
107	# endif
108	#endif
109
110	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
111	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
112	#endif	159	#endif
113		160
114	/**/	161	/**/
115		162
116	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
121	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
122	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
123	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
124	#endif	171	#endif
125		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
126	/**/	177	/**/
127		178
128	#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) */
129	#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) */
130	#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 */
131	/#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 */
132		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
133	#include "ev.h"	187	# include "ev.h"
		188	#endif
134		189
135	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
136	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
137	# define inline inline	192	# define inline static inline
138	#else	193	#else
139	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
140	# define inline static	195	# define inline static
141	#endif	196	#endif
142		197
…		…
144	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
145		200
146	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
147	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
148		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
149	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
150	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
151	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
152		210
153	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
154		212
155	#if WIN32	213	#ifdef _WIN32
156	/* note: the comment below could not be substantiated, but what would I care */	214	# include "ev_win32.c"
157	/* MSDN says this is required to handle SIGFPE */
158	volatile double SIGFPE_REQ = 0.0f;
159	#endif	215	#endif
160		216
161	/*****************************************************************************/	217	/*****************************************************************************/
162		218
163	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
…		…
211	typedef struct	267	typedef struct
212	{	268	{
213	WL head;	269	WL head;
214	unsigned char events;	270	unsigned char events;
215	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
216	} ANFD;	275	} ANFD;
217		276
218	typedef struct	277	typedef struct
219	{	278	{
220	W w;	279	W w;
221	int events;	280	int events;
222	} ANPENDING;	281	} ANPENDING;
223		282
224	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
225		284
226	struct ev_loop	285	struct ev_loop
227	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
228	# define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
229	# include "ev_vars.h"	290	#include "ev_vars.h"
230	};
231	# undef VAR	291	#undef VAR
		292	};
232	# 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;
233		297
234	#else	298	#else
235		299
		300	ev_tstamp ev_rt_now;
236	# define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
237	# include "ev_vars.h"	302	#include "ev_vars.h"
238	# undef VAR	303	#undef VAR
		304
		305	static int ev_default_loop_ptr;
239		306
240	#endif	307	#endif
241		308
242	/*****************************************************************************/	309	/*****************************************************************************/
243		310
244	inline ev_tstamp	311	ev_tstamp
245	ev_time (void)	312	ev_time (void)
246	{	313	{
247	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
248	struct timespec ts;	315	struct timespec ts;
249	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
268	#endif	335	#endif
269		336
270	return ev_time ();	337	return ev_time ();
271	}	338	}
272		339
		340	#if EV_MULTIPLICITY
273	ev_tstamp	341	ev_tstamp
274	ev_now (EV_P)	342	ev_now (EV_P)
275	{	343	{
276	return rt_now;	344	return ev_rt_now;
277	}	345	}
		346	#endif
278		347
279	#define array_roundsize(base,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
280		349
281	#define array_needsize(base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
282	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
283	{ \	352	{ \
284	int newcnt = cur; \	353	int newcnt = cur; \
285	do \	354	do \
286	{ \	355	{ \
287	newcnt = array_roundsize (base, newcnt << 1); \	356	newcnt = array_roundsize (type, newcnt << 1); \
288	} \	357	} \
289	while ((cnt) > newcnt); \	358	while ((cnt) > newcnt); \
290	\	359	\
291	base = ev_realloc (base, sizeof (base) (newcnt)); \	360	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
292	init (base + cur, newcnt - cur); \	361	init (base + cur, newcnt - cur); \
293	cur = newcnt; \	362	cur = newcnt; \
294	}	363	}
295		364
296	#define array_slim(stem) \	365	#define array_slim(type,stem) \
297	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	366	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
298	{ \	367	{ \
299	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
300	base = ev_realloc (base, sizeof (base) (stem ## max)); \	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
301	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
302	}	371	}
303
304	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
305	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
306	#define array_free_microshit(stem) \
307	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
308		372
309	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
310	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;
311		375
312	/*****************************************************************************/	376	/*****************************************************************************/
…		…
322		386
323	++base;	387	++base;
324	}	388	}
325	}	389	}
326		390
327	static void	391	void
328	event (EV_P_ W w, int events)	392	ev_feed_event (EV_P_ void *w, int revents)
329	{	393	{
330	if (w->pending)	394	W w_ = (W)w;
		395
		396	if (expect_false (w_->pending))
331	{	397	{
332	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
333	return;	399	return;
334	}	400	}
335		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
336	w->pending = ++pendingcnt [ABSPRI (w)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
337	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	406	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
338	pendings [ABSPRI (w)][w->pending - 1].w = w;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
339	pendings [ABSPRI (w)][w->pending - 1].events = events;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
340	}	409	}
341		410
342	static void	411	static void
343	queue_events (EV_P_ W *events, int eventcnt, int type)	412	queue_events (EV_P_ W *events, int eventcnt, int type)
344	{	413	{
345	int i;	414	int i;
346		415
347	for (i = 0; i < eventcnt; ++i)	416	for (i = 0; i < eventcnt; ++i)
348	event (EV_A_ events [i], type);	417	ev_feed_event (EV_A_ events [i], type);
349	}	418	}
350		419
351	static void	420	inline void
352	fd_event (EV_P_ int fd, int events)	421	fd_event (EV_P_ int fd, int revents)
353	{	422	{
354	ANFD *anfd = anfds + fd;	423	ANFD *anfd = anfds + fd;
355	struct ev_io *w;	424	struct ev_io *w;
356		425
357	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)
358	{	427	{
359	int ev = w->events & events;	428	int ev = w->events & revents;
360		429
361	if (ev)	430	if (ev)
362	event (EV_A_ (W)w, ev);	431	ev_feed_event (EV_A_ (W)w, ev);
363	}	432	}
		433	}
		434
		435	void
		436	ev_feed_fd_event (EV_P_ int fd, int revents)
		437	{
		438	fd_event (EV_A_ fd, revents);
364	}	439	}
365		440
366	/*****************************************************************************/	441	/*****************************************************************************/
367		442
368	static void	443	inline void
369	fd_reify (EV_P)	444	fd_reify (EV_P)
370	{	445	{
371	int i;	446	int i;
372		447
373	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
379	int events = 0;	454	int events = 0;
380		455
381	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)
382	events \|= w->events;	457	events \|= w->events;
383		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
384	anfd->reify = 0;	468	anfd->reify = 0;
385		469
386	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
387	anfd->events = events;	471	anfd->events = events;
388	}	472	}
389		473
390	fdchangecnt = 0;	474	fdchangecnt = 0;
391	}	475	}
392		476
393	static void	477	static void
394	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
395	{	479	{
396	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
397	return;	481	return;
398		482
399	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
400		484
401	++fdchangecnt;	485	++fdchangecnt;
402	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
403	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
404	}	488	}
405		489
406	static void	490	static void
407	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
409	struct ev_io *w;	493	struct ev_io *w;
410		494
411	while ((w = (struct ev_io *)anfds [fd].head))	495	while ((w = (struct ev_io *)anfds [fd].head))
412	{	496	{
413	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
414	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);
415	}	499	}
416	}	500	}
417		501
418	static int	502	inline int
419	fd_valid (int fd)	503	fd_valid (int fd)
420	{	504	{
421	#ifdef WIN32	505	#ifdef _WIN32
422	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
423	#else	507	#else
424	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
425	#endif	509	#endif
426	}	510	}
427		511
…		…
449	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
450	return;	534	return;
451	}	535	}
452	}	536	}
453		537
454	/* usually 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 */
455	static void	539	static void
456	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
457	{	541	{
458	int fd;	542	int fd;
459		543
…		…
507		591
508	heap [k] = w;	592	heap [k] = w;
509	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
510	}	594	}
511		595
		596	inline void
		597	adjustheap (WT *heap, int N, int k)
		598	{
		599	upheap (heap, k);
		600	downheap (heap, N, k);
		601	}
		602
512	/*****************************************************************************/	603	/*****************************************************************************/
513		604
514	typedef struct	605	typedef struct
515	{	606	{
516	WL head;	607	WL head;
…		…
537	}	628	}
538		629
539	static void	630	static void
540	sighandler (int signum)	631	sighandler (int signum)
541	{	632	{
542	#if WIN32	633	#if _WIN32
543	signal (signum, sighandler);	634	signal (signum, sighandler);
544	#endif	635	#endif
545		636
546	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
547		638
…		…
552	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
553	errno = old_errno;	644	errno = old_errno;
554	}	645	}
555	}	646	}
556		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
557	static void	668	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	670	{
560	WL w;
561	int signum;	671	int signum;
562		672
563	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
564	gotsig = 0;	674	gotsig = 0;
565		675
566	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
567	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
568	{	678	ev_feed_signal_event (EV_A_ signum + 1);
569	signals [signum].gotsig = 0;	679	}
570		680
571	for (w = signals [signum].head; w; w = w->next)	681	static void
572	event (EV_A_ (W)w, EV_SIGNAL);	682	fd_intern (int fd)
573	}	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
574	}	691	}
575		692
576	static void	693	static void
577	siginit (EV_P)	694	siginit (EV_P)
578	{	695	{
579	#ifndef WIN32	696	fd_intern (sigpipe [0]);
580	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	fd_intern (sigpipe [1]);
581	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
582
583	/* rather than sort out wether we really need nb, set it */
584	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
585	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
586	#endif
587		698
588	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
589	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
590	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
591	}	702	}
592		703
593	/*****************************************************************************/	704	/*****************************************************************************/
594		705
595	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
596		707
597	#ifndef WIN32	708	#ifndef _WIN32
598		709
599	static struct ev_signal childev;	710	static struct ev_signal childev;
600		711
601	#ifndef WCONTINUED	712	#ifndef WCONTINUED
602	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
611	if (w->pid == pid \|\| !w->pid)	722	if (w->pid == pid \|\| !w->pid)
612	{	723	{
613	ev_priority (w) = ev_priority (sw); /* need to do it now */	724	ev_priority (w) = ev_priority (sw); /* need to do it now */
614	w->rpid = pid;	725	w->rpid = pid;
615	w->rstatus = status;	726	w->rstatus = status;
616	event (EV_A_ (W)w, EV_CHILD);	727	ev_feed_event (EV_A_ (W)w, EV_CHILD);
617	}	728	}
618	}	729	}
619		730
620	static void	731	static void
621	childcb (EV_P_ struct ev_signal *sw, int revents)	732	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
623	int pid, status;	734	int pid, status;
624		735
625	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
626	{	737	{
627	/* 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 */
628	event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
629		741
630	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
631	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 */
632	}	744	}
633	}	745	}
634		746
635	#endif	747	#endif
636		748
637	/*****************************************************************************/	749	/*****************************************************************************/
638		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
639	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
640	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
641	#endif	756	#endif
642	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
643	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
663		778
664	/* 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 */
665	static int	780	static int
666	enable_secure (void)	781	enable_secure (void)
667	{	782	{
668	#ifdef WIN32	783	#ifdef _WIN32
669	return 0;	784	return 0;
670	#else	785	#else
671	return getuid () != geteuid ()	786	return getuid () != geteuid ()
672	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
673	#endif	788	#endif
674	}	789	}
675		790
676	int	791	unsigned int
677	ev_method (EV_P)	792	ev_supported_backends (void)
678	{	793	{
679	return method;	794	unsigned int flags = 0;
680	}
681		795
682	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
683	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)
684	{	807	{
685	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)
686	{	841	{
687	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
688	{	843	{
689	struct timespec ts;	844	struct timespec ts;
690	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
691	have_monotonic = 1;	846	have_monotonic = 1;
692	}	847	}
693	#endif	848	#endif
694		849
695	rt_now = ev_time ();	850	ev_rt_now = ev_time ();
696	mn_now = get_clock ();	851	mn_now = get_clock ();
697	now_floor = mn_now;	852	now_floor = mn_now;
698	rtmn_diff = rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
699		854
700	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
701	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
702	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
703	else
704	methods = EVMETHOD_ANY;
705		859
706	method = 0;	860	if (!(flags & 0x0000ffffUL))
707	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
708	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);
709	#endif	866	#endif
710	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
711	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
712	#endif	869	#endif
713	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
714	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
715	#endif	872	#endif
716	#if EV_USE_POLL	873	#if EV_USE_POLL
717	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
718	#endif	875	#endif
719	#if EV_USE_SELECT	876	#if EV_USE_SELECT
720	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
721	#endif	878	#endif
722		879
723	ev_watcher_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
724	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
725	}	882	}
726	}	883	}
727		884
728	void	885	static void
729	loop_destroy (EV_P)	886	loop_destroy (EV_P)
730	{	887	{
731	int i;	888	int i;
732		889
733	#if EV_USE_WIN32	890	#if EV_USE_PORT
734	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
735	#endif	892	#endif
736	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
737	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
738	#endif	895	#endif
739	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
740	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
741	#endif	898	#endif
742	#if EV_USE_POLL	899	#if EV_USE_POLL
743	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
744	#endif	901	#endif
745	#if EV_USE_SELECT	902	#if EV_USE_SELECT
746	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
747	#endif	904	#endif
748		905
749	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
750	array_free (pending, [i]);	907	array_free (pending, [i]);
751		908
752	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
753	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
754	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
755	array_free_microshit (periodic);	912	#if EV_PERIODICS
756	array_free_microshit (idle);	913	array_free (periodic, EMPTY0);
757	array_free_microshit (prepare);	914	#endif
758	array_free_microshit (check);	915	array_free (idle, EMPTY0);
		916	array_free (prepare, EMPTY0);
		917	array_free (check, EMPTY0);
759		918
760	method = 0;	919	backend = 0;
761	}	920	}
762		921
763	static void	922	static void
764	loop_fork (EV_P)	923	loop_fork (EV_P)
765	{	924	{
		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
766	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
767	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
768	#endif
769	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
771	#endif	933	#endif
772		934
773	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
774	{	936	{
775	/* default loop */	937	/* default loop */
…		…
788	postfork = 0;	950	postfork = 0;
789	}	951	}
790		952
791	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
792	struct ev_loop *	954	struct ev_loop *
793	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
794	{	956	{
795	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));
796		958
797	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
798		960
799	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
800		962
801	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
802	return loop;	964	return loop;
803		965
804	return 0;	966	return 0;
805	}	967	}
806		968
…		…
818	}	980	}
819		981
820	#endif	982	#endif
821		983
822	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
823	struct ev_loop default_loop_struct;
824	static struct ev_loop *default_loop;
825
826	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
827	#else	987	#else
828	static int default_loop;
829
830	int	988	int
		989	ev_default_loop (unsigned int flags)
831	#endif	990	#endif
832	ev_default_loop (int methods)
833	{	991	{
834	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
835	if (pipe (sigpipe))	993	if (pipe (sigpipe))
836	return 0;	994	return 0;
837		995
838	if (!default_loop)	996	if (!ev_default_loop_ptr)
839	{	997	{
840	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
841	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
842	#else	1000	#else
843	default_loop = 1;	1001	ev_default_loop_ptr = 1;
844	#endif	1002	#endif
845		1003
846	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
847		1005
848	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
849	{	1007	{
850	siginit (EV_A);	1008	siginit (EV_A);
851		1009
852	#ifndef WIN32	1010	#ifndef _WIN32
853	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
854	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
855	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
856	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
857	#endif	1015	#endif
858	}	1016	}
859	else	1017	else
860	default_loop = 0;	1018	ev_default_loop_ptr = 0;
861	}	1019	}
862		1020
863	return default_loop;	1021	return ev_default_loop_ptr;
864	}	1022	}
865		1023
866	void	1024	void
867	ev_default_destroy (void)	1025	ev_default_destroy (void)
868	{	1026	{
869	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
870	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
871	#endif	1029	#endif
872		1030
873	#ifndef WIN32	1031	#ifndef _WIN32
874	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
875	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
876	#endif	1034	#endif
877		1035
878	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
886		1044
887	void	1045	void
888	ev_default_fork (void)	1046	ev_default_fork (void)
889	{	1047	{
890	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
891	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
892	#endif	1050	#endif
893		1051
894	if (method)	1052	if (backend)
895	postfork = 1;	1053	postfork = 1;
896	}	1054	}
897		1055
898	/*****************************************************************************/	1056	/*****************************************************************************/
899		1057
900	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
901	call_pending (EV_P)	1071	call_pending (EV_P)
902	{	1072	{
903	int pri;	1073	int pri;
904		1074
905	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
906	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
907	{	1077	{
908	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
909		1079
910	if (p->w)	1080	if (expect_true (p->w))
911	{	1081	{
912	p->w->pending = 0;	1082	p->w->pending = 0;
913	p->w->cb (EV_A_ p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
914	}	1084	}
915	}	1085	}
916	}	1086	}
917		1087
918	static void	1088	inline void
919	timers_reify (EV_P)	1089	timers_reify (EV_P)
920	{	1090	{
921	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
922	{	1092	{
923	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
926		1096
927	/* first reschedule or stop timer */	1097	/* first reschedule or stop timer */
928	if (w->repeat)	1098	if (w->repeat)
929	{	1099	{
930	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
931	((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
932	downheap ((WT *)timers, timercnt, 0);	1106	downheap ((WT *)timers, timercnt, 0);
933	}	1107	}
934	else	1108	else
935	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1109	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
936		1110
937	event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
938	}	1112	}
939	}	1113	}
940		1114
941	static void	1115	#if EV_PERIODICS
		1116	inline void
942	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
943	{	1118	{
944	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
945	{	1120	{
946	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
947		1122
948	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
949		1124
950	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
951	if (w->interval)	1126	if (w->reschedule_cb)
952	{	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	{
953	((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;
954	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));
955	downheap ((WT *)periodics, periodiccnt, 0);	1136	downheap ((WT *)periodics, periodiccnt, 0);
956	}	1137	}
957	else	1138	else
958	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1139	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
959		1140
960	event (EV_A_ (W)w, EV_PERIODIC);	1141	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
961	}	1142	}
962	}	1143	}
963		1144
964	static void	1145	static void
965	periodics_reschedule (EV_P)	1146	periodics_reschedule (EV_P)
…		…
969	/* adjust periodics after time jump */	1150	/* adjust periodics after time jump */
970	for (i = 0; i < periodiccnt; ++i)	1151	for (i = 0; i < periodiccnt; ++i)
971	{	1152	{
972	struct ev_periodic *w = periodics [i];	1153	struct ev_periodic *w = periodics [i];
973		1154
		1155	if (w->reschedule_cb)
		1156	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
974	if (w->interval)	1157	else if (w->interval)
975	{
976	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;
977
978	if (fabs (diff) >= 1e-4)
979	{
980	ev_periodic_stop (EV_A_ w);
981	ev_periodic_start (EV_A_ w);
982
983	i = 0; /* restart loop, inefficient, but time jumps should be rare */
984	}
985	}
986	}	1159	}
		1160
		1161	/* now rebuild the heap */
		1162	for (i = periodiccnt >> 1; i--; )
		1163	downheap ((WT *)periodics, periodiccnt, i);
987	}	1164	}
		1165	#endif
988		1166
989	inline int	1167	inline int
990	time_update_monotonic (EV_P)	1168	time_update_monotonic (EV_P)
991	{	1169	{
992	mn_now = get_clock ();	1170	mn_now = get_clock ();
993		1171
994	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1172	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
995	{	1173	{
996	rt_now = rtmn_diff + mn_now;	1174	ev_rt_now = rtmn_diff + mn_now;
997	return 0;	1175	return 0;
998	}	1176	}
999	else	1177	else
1000	{	1178	{
1001	now_floor = mn_now;	1179	now_floor = mn_now;
1002	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1003	return 1;	1181	return 1;
1004	}	1182	}
1005	}	1183	}
1006		1184
1007	static void	1185	inline void
1008	time_update (EV_P)	1186	time_update (EV_P)
1009	{	1187	{
1010	int i;	1188	int i;
1011		1189
1012	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1016	{	1194	{
1017	ev_tstamp odiff = rtmn_diff;	1195	ev_tstamp odiff = rtmn_diff;
1018		1196
1019	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 */
1020	{	1198	{
1021	rtmn_diff = rt_now - mn_now;	1199	rtmn_diff = ev_rt_now - mn_now;
1022		1200
1023	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1201	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1024	return; /* all is well */	1202	return; /* all is well */
1025		1203
1026	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
1027	mn_now = get_clock ();	1205	mn_now = get_clock ();
1028	now_floor = mn_now;	1206	now_floor = mn_now;
1029	}	1207	}
1030		1208
		1209	# if EV_PERIODICS
1031	periodics_reschedule (EV_A);	1210	periodics_reschedule (EV_A);
		1211	# endif
1032	/* no timer adjustment, as the monotonic clock doesn't jump */	1212	/* no timer adjustment, as the monotonic clock doesn't jump */
1033	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1213	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1034	}	1214	}
1035	}	1215	}
1036	else	1216	else
1037	#endif	1217	#endif
1038	{	1218	{
1039	rt_now = ev_time ();	1219	ev_rt_now = ev_time ();
1040		1220
1041	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))
1042	{	1222	{
		1223	#if EV_PERIODICS
1043	periodics_reschedule (EV_A);	1224	periodics_reschedule (EV_A);
		1225	#endif
1044		1226
1045	/* 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 */
1046	for (i = 0; i < timercnt; ++i)	1228	for (i = 0; i < timercnt; ++i)
1047	((WT)timers [i])->at += rt_now - mn_now;	1229	((WT)timers [i])->at += ev_rt_now - mn_now;
1048	}	1230	}
1049		1231
1050	mn_now = rt_now;	1232	mn_now = ev_rt_now;
1051	}	1233	}
1052	}	1234	}
1053		1235
1054	void	1236	void
1055	ev_ref (EV_P)	1237	ev_ref (EV_P)
…		…
1066	static int loop_done;	1248	static int loop_done;
1067		1249
1068	void	1250	void
1069	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1070	{	1252	{
1071	double block;
1072	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1073		1256
1074	do	1257	while (activecnt)
1075	{	1258	{
1076	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1077	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1078	{	1261	{
1079	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1086		1269
1087	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1088	fd_reify (EV_A);	1271	fd_reify (EV_A);
1089		1272
1090	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1091		1276
1092	/* we only need this for !monotonic clockor timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1093	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 */
1094	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1095	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1096	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1097	else	1285	else
1098	#endif	1286	#endif
1099	{	1287	{
1100	rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1101	mn_now = rt_now;	1289	mn_now = ev_rt_now;
1102	}	1290	}
1103		1291
1104	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1105	block = 0.;
1106	else
1107	{
1108	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1109		1293
1110	if (timercnt)	1294	if (timercnt)
1111	{	1295	{
1112	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1113	if (block > to) block = to;	1297	if (block > to) block = to;
1114	}	1298	}
1115		1299
		1300	#if EV_PERIODICS
1116	if (periodiccnt)	1301	if (periodiccnt)
1117	{	1302	{
1118	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1303	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1119	if (block > to) block = to;	1304	if (block > to) block = to;
1120	}	1305	}
		1306	#endif
1121		1307
1122	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1123	}	1309	}
1124		1310
1125	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1126		1313
1127	/* update rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1128	time_update (EV_A);	1315	time_update (EV_A);
1129		1316
1130	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
1131	timers_reify (EV_A); /* relative timers called last */	1318	timers_reify (EV_A); /* relative timers called last */
		1319	#if EV_PERIODICS
1132	periodics_reify (EV_A); /* absolute timers called first */	1320	periodics_reify (EV_A); /* absolute timers called first */
		1321	#endif
1133		1322
1134	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1135	if (!pendingcnt)	1324	if (idlecnt && !any_pending (EV_A))
1136	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1137		1326
1138	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1139	if (checkcnt)	1328	if (expect_false (checkcnt))
1140	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1141		1330
1142	call_pending (EV_A);	1331	call_pending (EV_A);
1143	}
1144	while (activecnt && !loop_done);
1145		1332
1146	if (loop_done != 2)	1333	if (expect_false (loop_done))
1147	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1148	}	1339	}
1149		1340
1150	void	1341	void
1151	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1152	{	1343	{
…		…
1209	void	1400	void
1210	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1211	{	1402	{
1212	int fd = w->fd;	1403	int fd = w->fd;
1213		1404
1214	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1215	return;	1406	return;
1216		1407
1217	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1218		1409
1219	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
1220	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1411	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1221	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1412	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1222		1413
1223	fd_change (EV_A_ fd);	1414	fd_change (EV_A_ fd);
1224	}	1415	}
1225		1416
1226	void	1417	void
1227	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1228	{	1419	{
1229	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1230	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1231	return;	1422	return;
		1423
		1424	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1232		1425
1233	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1234	ev_stop (EV_A_ (W)w);	1427	ev_stop (EV_A_ (W)w);
1235		1428
1236	fd_change (EV_A_ w->fd);	1429	fd_change (EV_A_ w->fd);
1237	}	1430	}
1238		1431
1239	void	1432	void
1240	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1241	{	1434	{
1242	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1243	return;	1436	return;
1244		1437
1245	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1246		1439
1247	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.));
1248		1441
1249	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1250	array_needsize (timers, timermax, timercnt, (void));	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1251	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1252	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1253		1446
1254	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1255	}	1448	}
1256		1449
1257	void	1450	void
1258	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1259	{	1452	{
1260	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1261	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1262	return;	1455	return;
1263		1456
1264	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1265		1458
1266	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1267	{	1460	{
1268	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1269	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1270	}	1463	}
1271		1464
1272	((WT)w)->at = w->repeat;	1465	((WT)w)->at -= mn_now;
1273		1466
1274	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1275	}	1468	}
1276		1469
1277	void	1470	void
…		…
1280	if (ev_is_active (w))	1473	if (ev_is_active (w))
1281	{	1474	{
1282	if (w->repeat)	1475	if (w->repeat)
1283	{	1476	{
1284	((WT)w)->at = mn_now + w->repeat;	1477	((WT)w)->at = mn_now + w->repeat;
1285	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1286	}	1479	}
1287	else	1480	else
1288	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1289	}	1482	}
1290	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1291	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1292	}	1488	}
1293		1489
		1490	#if EV_PERIODICS
1294	void	1491	void
1295	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1296	{	1493	{
1297	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1298	return;	1495	return;
1299		1496
		1497	if (w->reschedule_cb)
		1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1499	else if (w->interval)
		1500	{
1300	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.));
1301
1302	/* 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 */
1303	if (w->interval)
1304	((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	}
1305		1505
1306	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1307	array_needsize (periodics, periodicmax, periodiccnt, (void));	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1308	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1309	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1310		1510
1311	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1312	}	1512	}
1313		1513
1314	void	1514	void
1315	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1316	{	1516	{
1317	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1318	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1319	return;	1519	return;
1320		1520
1321	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1322		1522
1323	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1324	{	1524	{
1325	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1326	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1327	}	1527	}
1328		1528
1329	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1330	}	1530	}
1331		1531
1332	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
1333	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1334	{	1543	{
1335	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1336	return;	1545	return;
1337		1546
1338	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1339	array_needsize (idles, idlemax, idlecnt, (void));	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1340	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1341	}	1550	}
1342		1551
1343	void	1552	void
1344	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1345	{	1554	{
1346	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1347	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1348	return;	1557	return;
1349		1558
1350	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1351	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1352	}	1561	}
1353		1562
1354	void	1563	void
1355	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1356	{	1565	{
1357	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1358	return;	1567	return;
1359		1568
1360	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1361	array_needsize (prepares, preparemax, preparecnt, (void));	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1362	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1363	}	1572	}
1364		1573
1365	void	1574	void
1366	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1367	{	1576	{
1368	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1369	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1370	return;	1579	return;
1371		1580
1372	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1373	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1374	}	1583	}
1375		1584
1376	void	1585	void
1377	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1378	{	1587	{
1379	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1380	return;	1589	return;
1381		1590
1382	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1383	array_needsize (checks, checkmax, checkcnt, (void));	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1384	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1385	}	1594	}
1386		1595
1387	void	1596	void
1388	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1389	{	1598	{
1390	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1391	if (ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1392	return;	1601	return;
1393		1602
1394	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1395	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1396	}	1605	}
…		…
1401		1610
1402	void	1611	void
1403	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1404	{	1613	{
1405	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1406	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));
1407	#endif	1616	#endif
1408	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1409	return;	1618	return;
1410		1619
1411	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));
1412		1621
1413	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1414	array_needsize (signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1415	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1416		1625
1417	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1418	{	1627	{
1419	#if WIN32	1628	#if _WIN32
1420	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1421	#else	1630	#else
1422	struct sigaction sa;	1631	struct sigaction sa;
1423	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1424	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1430		1639
1431	void	1640	void
1432	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1433	{	1642	{
1434	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1435	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1436	return;	1645	return;
1437		1646
1438	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1439	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1440		1649
…		…
1444		1653
1445	void	1654	void
1446	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1447	{	1656	{
1448	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1449	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));
1450	#endif	1659	#endif
1451	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1452	return;	1661	return;
1453		1662
1454	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1455	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1456	}	1665	}
1457		1666
1458	void	1667	void
1459	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1460	{	1669	{
1461	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1462	if (ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1463	return;	1672	return;
1464		1673
1465	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1466	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1467	}	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
1468		1715
1469	/*****************************************************************************/	1716	/*****************************************************************************/
1470		1717
1471	struct ev_once	1718	struct ev_once
1472	{	1719	{
…		…
1502	}	1749	}
1503		1750
1504	void	1751	void
1505	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)
1506	{	1753	{
1507	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1754	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1508		1755
1509	if (!once)	1756	if (expect_false (!once))
		1757	{
1510	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1511	else	1759	return;
1512	{	1760	}
		1761
1513	once->cb = cb;	1762	once->cb = cb;
1514	once->arg = arg;	1763	once->arg = arg;
1515		1764
1516	ev_watcher_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1517	if (fd >= 0)	1766	if (fd >= 0)
1518	{	1767	{
1519	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1520	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1521	}	1770	}
1522		1771
1523	ev_watcher_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1524	if (timeout >= 0.)	1773	if (timeout >= 0.)
1525	{	1774	{
1526	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1527	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1528	}
1529	}	1777	}
1530	}	1778	}
1531		1779
		1780	#ifdef __cplusplus
		1781	}
		1782	#endif
		1783

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Comparing libev/ev.c (file contents): Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs. Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC