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

Comparing libev/ev.c (file contents):
Revision 1.76 by root, Wed Nov 7 18:47:26 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
41	# endif	59	# endif
42		60
43	# if HAVE_POLL && HAVE_POLL_H	61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
45	# endif	65	# endif
46		66
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
49	# endif	71	# endif
50		72
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
53	# endif	83	# endif
54		84
55	#endif	85	#endif
56		86
57	#include <math.h>	87	#include <math.h>
…		…
66	#include <sys/types.h>	96	#include <sys/types.h>
67	#include <time.h>	97	#include <time.h>
68		98
69	#include <signal.h>	99	#include <signal.h>
70		100
71	#ifndef WIN32	101	#ifndef _WIN32
72	# include <unistd.h>	102	# include <unistd.h>
73	# include <sys/time.h>	103	# include <sys/time.h>
74	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	110	# endif
		111	#endif
		112
76	/**/	113	/**/
77		114
78	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
80	#endif	121	#endif
81		122
82	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
84	#endif	125	#endif
85		126
86	#ifndef EV_USE_POLL	127	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
88	#endif	133	#endif
89		134
90	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
92	#endif	137	#endif
93		138
94	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
96	#endif	141	#endif
97		142
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME	143	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
110	#endif	145	#endif
111		146
112	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
113		154
114	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
117	#endif	158	#endif
…		…
119	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
122	#endif	163	#endif
123		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
124	/**/	169	/**/
125		170
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	172	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	173	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	174	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		175
		176	#ifdef EV_H
		177	# include EV_H
		178	#else
131	#include "ev.h"	179	# include "ev.h"
		180	#endif
132		181
133	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	184	# define inline static inline
136	#else	185	#else
137	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
138	# define inline static	187	# define inline static
139	#endif	188	#endif
140		189
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
143		192
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
147	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
150		202
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		204
		205	#ifdef _WIN32
153	#include "ev_win32.c"	206	# include "ev_win32.c"
		207	#endif
154		208
155	/*****************************************************************************/	209	/*****************************************************************************/
156		210
157	static void (syserr_cb)(const char msg);	211	static void (syserr_cb)(const char msg);
158		212
…		…
205	typedef struct	259	typedef struct
206	{	260	{
207	WL head;	261	WL head;
208	unsigned char events;	262	unsigned char events;
209	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
210	} ANFD;	267	} ANFD;
211		268
212	typedef struct	269	typedef struct
213	{	270	{
214	W w;	271	W w;
215	int events;	272	int events;
216	} ANPENDING;	273	} ANPENDING;
217		274
218	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
219		276
220	struct ev_loop	277	struct ev_loop
221	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	282	#include "ev_vars.h"
224	};
225	# undef VAR	283	#undef VAR
		284	};
226	# include "ev_wrap.h"	285	#include "ev_wrap.h"
		286
		287	static struct ev_loop default_loop_struct;
		288	struct ev_loop *ev_default_loop_ptr;
227		289
228	#else	290	#else
229		291
		292	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	294	#include "ev_vars.h"
232	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
233		298
234	#endif	299	#endif
235		300
236	/*****************************************************************************/	301	/*****************************************************************************/
237		302
238	inline ev_tstamp	303	ev_tstamp
239	ev_time (void)	304	ev_time (void)
240	{	305	{
241	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
242	struct timespec ts;	307	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	327	#endif
263		328
264	return ev_time ();	329	return ev_time ();
265	}	330	}
266		331
		332	#if EV_MULTIPLICITY
267	ev_tstamp	333	ev_tstamp
268	ev_now (EV_P)	334	ev_now (EV_P)
269	{	335	{
270	return rt_now;	336	return ev_rt_now;
271	}	337	}
		338	#endif
272		339
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		341
275	#define array_needsize(type,base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
277	{ \	344	{ \
278	int newcnt = cur; \	345	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	360	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	361	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	363	}
297		364
298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300	#define array_free_microshit(stem) \
301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303	#define array_free(stem, idx) \	365	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		367
306	/*****************************************************************************/	368	/*****************************************************************************/
307		369
…		…
316		378
317	++base;	379	++base;
318	}	380	}
319	}	381	}
320		382
321	static void	383	void
322	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
323	{	385	{
324	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
325	{	389	{
326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
327	return;	391	return;
328	}	392	}
329		393
330	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
331	array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
332	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334	}	398	}
335		399
336	static void	400	static void
337	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
338	{	402	{
339	int i;	403	int i;
340		404
341	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
342	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
343	}	407	}
344		408
345	static void	409	inline void
346	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
347	{	411	{
348	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
349	struct ev_io *w;	413	struct ev_io *w;
350		414
351	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	415	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
352	{	416	{
353	int ev = w->events & events;	417	int ev = w->events & revents;
354		418
355	if (ev)	419	if (ev)
356	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
357	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
358	}	428	}
359		429
360	/*****************************************************************************/	430	/*****************************************************************************/
361		431
362	static void	432	inline void
363	fd_reify (EV_P)	433	fd_reify (EV_P)
364	{	434	{
365	int i;	435	int i;
366		436
367	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
373	int events = 0;	443	int events = 0;
374		444
375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	445	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
376	events \|= w->events;	446	events \|= w->events;
377		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
378	anfd->reify = 0;	457	anfd->reify = 0;
379		458
380	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
381	anfd->events = events;	460	anfd->events = events;
382	}	461	}
…		…
385	}	464	}
386		465
387	static void	466	static void
388	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
389	{	468	{
390	if (anfds [fd].reify)	469	if (expect_false (anfds [fd].reify))
391	return;	470	return;
392		471
393	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
394		473
395	++fdchangecnt;	474	++fdchangecnt;
396	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
398	}	477	}
399		478
400	static void	479	static void
401	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
403	struct ev_io *w;	482	struct ev_io *w;
404		483
405	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
406	{	485	{
407	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
409	}	488	}
410	}	489	}
411		490
412	static int	491	inline int
413	fd_valid (int fd)	492	fd_valid (int fd)
414	{	493	{
415	#ifdef WIN32	494	#ifdef _WIN32
416	return !!win32_get_osfhandle (fd);	495	return _get_osfhandle (fd) != -1;
417	#else	496	#else
418	return fcntl (fd, F_GETFD) != -1;	497	return fcntl (fd, F_GETFD) != -1;
419	#endif	498	#endif
420	}	499	}
421		500
…		…
501		580
502	heap [k] = w;	581	heap [k] = w;
503	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
504	}	583	}
505		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
		590	}
		591
506	/*****************************************************************************/	592	/*****************************************************************************/
507		593
508	typedef struct	594	typedef struct
509	{	595	{
510	WL head;	596	WL head;
…		…
531	}	617	}
532		618
533	static void	619	static void
534	sighandler (int signum)	620	sighandler (int signum)
535	{	621	{
536	#if WIN32	622	#if _WIN32
537	signal (signum, sighandler);	623	signal (signum, sighandler);
538	#endif	624	#endif
539		625
540	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
541		627
542	if (!gotsig)	628	if (!gotsig)
543	{	629	{
544	int old_errno = errno;	630	int old_errno = errno;
545	gotsig = 1;	631	gotsig = 1;
546	#ifdef WIN32
547	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548	#else
549	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
550	#endif
551	errno = old_errno;	633	errno = old_errno;
552	}	634	}
553	}	635	}
554		636
		637	void
		638	ev_feed_signal_event (EV_P_ int signum)
		639	{
		640	WL w;
		641
		642	#if EV_MULTIPLICITY
		643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		644	#endif
		645
		646	--signum;
		647
		648	if (signum < 0 \|\| signum >= signalmax)
		649	return;
		650
		651	signals [signum].gotsig = 0;
		652
		653	for (w = signals [signum].head; w; w = w->next)
		654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		655	}
		656
555	static void	657	static void
556	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
557	{	659	{
558	WL w;
559	int signum;	660	int signum;
560		661
561	#ifdef WIN32
562	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563	#else
564	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
565	#endif
566	gotsig = 0;	663	gotsig = 0;
567		664
568	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
569	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
570	{	667	ev_feed_signal_event (EV_A_ signum + 1);
571	signals [signum].gotsig = 0;	668	}
572		669
573	for (w = signals [signum].head; w; w = w->next)	670	static void
574	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
575	}	672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
576	}	680	}
577		681
578	static void	682	static void
579	siginit (EV_P)	683	siginit (EV_P)
580	{	684	{
581	#ifndef WIN32	685	fd_intern (sigpipe [0]);
582	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
583	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
584
585	/* rather than sort out wether we really need nb, set it */
586	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
587	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
588	#endif
589		687
590	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
591	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
592	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
593	}	691	}
594		692
595	/*****************************************************************************/	693	/*****************************************************************************/
596		694
597	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
598		696
599	#ifndef WIN32	697	#ifndef _WIN32
600		698
601	static struct ev_signal childev;	699	static struct ev_signal childev;
602		700
603	#ifndef WCONTINUED	701	#ifndef WCONTINUED
604	# define WCONTINUED 0	702	# define WCONTINUED 0
…		…
613	if (w->pid == pid \|\| !w->pid)	711	if (w->pid == pid \|\| !w->pid)
614	{	712	{
615	ev_priority (w) = ev_priority (sw); /* need to do it now */	713	ev_priority (w) = ev_priority (sw); /* need to do it now */
616	w->rpid = pid;	714	w->rpid = pid;
617	w->rstatus = status;	715	w->rstatus = status;
618	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
619	}	717	}
620	}	718	}
621		719
622	static void	720	static void
623	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
625	int pid, status;	723	int pid, status;
626		724
627	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
628	{	726	{
629	/* make sure we are called again until all childs have been reaped */	727	/* make sure we are called again until all childs have been reaped */
630	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
631		729
632	child_reap (EV_A_ sw, pid, pid, status);	730	child_reap (EV_A_ sw, pid, pid, status);
633	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
634	}	732	}
635	}	733	}
636		734
637	#endif	735	#endif
638		736
639	/*****************************************************************************/	737	/*****************************************************************************/
640		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
641	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
642	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
643	#endif	744	#endif
644	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
645	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
665		766
666	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
667	static int	768	static int
668	enable_secure (void)	769	enable_secure (void)
669	{	770	{
670	#ifdef WIN32	771	#ifdef _WIN32
671	return 0;	772	return 0;
672	#else	773	#else
673	return getuid () != geteuid ()	774	return getuid () != geteuid ()
674	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
675	#endif	776	#endif
676	}	777	}
677		778
678	int	779	unsigned int
679	ev_method (EV_P)	780	ev_method (EV_P)
680	{	781	{
681	return method;	782	return method;
682	}	783	}
683		784
684	static void	785	static void
685	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
686	{	787	{
687	if (!method)	788	if (!method)
688	{	789	{
689	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
690	{	791	{
…		…
692	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
693	have_monotonic = 1;	794	have_monotonic = 1;
694	}	795	}
695	#endif	796	#endif
696		797
697	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
698	mn_now = get_clock ();	799	mn_now = get_clock ();
699	now_floor = mn_now;	800	now_floor = mn_now;
700	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
701		802
702	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
703	if (!enable_secure () && getenv ("LIBEV_METHODS"))
704	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
705	else	805
706	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
707		808
708	method = 0;	809	method = 0;
709	#if EV_USE_WIN32	810	#if EV_USE_PORT
710	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
711	#endif	812	#endif
712	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
713	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
714	#endif	815	#endif
715	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
716	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
717	#endif	818	#endif
718	#if EV_USE_POLL	819	#if EV_USE_POLL
719	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
720	#endif	821	#endif
721	#if EV_USE_SELECT	822	#if EV_USE_SELECT
722	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
723	#endif	824	#endif
724		825
725	ev_watcher_init (&sigev, sigcb);	826	ev_init (&sigev, sigcb);
726	ev_set_priority (&sigev, EV_MAXPRI);	827	ev_set_priority (&sigev, EV_MAXPRI);
727	}	828	}
728	}	829	}
729		830
730	void	831	static void
731	loop_destroy (EV_P)	832	loop_destroy (EV_P)
732	{	833	{
733	int i;	834	int i;
734		835
735	#if EV_USE_WIN32	836	#if EV_USE_PORT
736	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
737	#endif	838	#endif
738	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
739	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
740	#endif	841	#endif
741	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
750		851
751	for (i = NUMPRI; i--; )	852	for (i = NUMPRI; i--; )
752	array_free (pending, [i]);	853	array_free (pending, [i]);
753		854
754	/* have to use the microsoft-never-gets-it-right macro */	855	/* have to use the microsoft-never-gets-it-right macro */
755	array_free_microshit (fdchange);	856	array_free (fdchange, EMPTY0);
756	array_free_microshit (timer);	857	array_free (timer, EMPTY0);
757	array_free_microshit (periodic);	858	#if EV_PERIODICS
758	array_free_microshit (idle);	859	array_free (periodic, EMPTY0);
759	array_free_microshit (prepare);	860	#endif
760	array_free_microshit (check);	861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
761		864
762	method = 0;	865	method = 0;
763	}	866	}
764		867
765	static void	868	static void
766	loop_fork (EV_P)	869	loop_fork (EV_P)
767	{	870	{
		871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
768	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
769	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
770	#endif
771	#if EV_USE_KQUEUE
772	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
773	#endif	879	#endif
774		880
775	if (ev_is_active (&sigev))	881	if (ev_is_active (&sigev))
776	{	882	{
777	/* default loop */	883	/* default loop */
…		…
790	postfork = 0;	896	postfork = 0;
791	}	897	}
792		898
793	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
794	struct ev_loop *	900	struct ev_loop *
795	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
796	{	902	{
797	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	903	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
798		904
799	memset (loop, 0, sizeof (struct ev_loop));	905	memset (loop, 0, sizeof (struct ev_loop));
800		906
801	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
802		908
803	if (ev_method (EV_A))	909	if (ev_method (EV_A))
804	return loop;	910	return loop;
805		911
806	return 0;	912	return 0;
…		…
820	}	926	}
821		927
822	#endif	928	#endif
823		929
824	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
825	struct ev_loop default_loop_struct;
826	static struct ev_loop *default_loop;
827
828	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
829	#else	933	#else
830	static int default_loop;
831
832	int	934	int
		935	ev_default_loop (unsigned int flags)
833	#endif	936	#endif
834	ev_default_loop (int methods)
835	{	937	{
836	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
837	if (pipe (sigpipe))	939	if (pipe (sigpipe))
838	return 0;	940	return 0;
839		941
840	if (!default_loop)	942	if (!ev_default_loop_ptr)
841	{	943	{
842	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
843	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
844	#else	946	#else
845	default_loop = 1;	947	ev_default_loop_ptr = 1;
846	#endif	948	#endif
847		949
848	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
849		951
850	if (ev_method (EV_A))	952	if (ev_method (EV_A))
851	{	953	{
852	siginit (EV_A);	954	siginit (EV_A);
853		955
854	#ifndef WIN32	956	#ifndef _WIN32
855	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
856	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
857	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
858	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
859	#endif	961	#endif
860	}	962	}
861	else	963	else
862	default_loop = 0;	964	ev_default_loop_ptr = 0;
863	}	965	}
864		966
865	return default_loop;	967	return ev_default_loop_ptr;
866	}	968	}
867		969
868	void	970	void
869	ev_default_destroy (void)	971	ev_default_destroy (void)
870	{	972	{
871	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
872	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
873	#endif	975	#endif
874		976
875	#ifndef WIN32	977	#ifndef _WIN32
876	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
877	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
878	#endif	980	#endif
879		981
880	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
…		…
888		990
889	void	991	void
890	ev_default_fork (void)	992	ev_default_fork (void)
891	{	993	{
892	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
893	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
894	#endif	996	#endif
895		997
896	if (method)	998	if (method)
897	postfork = 1;	999	postfork = 1;
898	}	1000	}
…		…
909	return 1;	1011	return 1;
910		1012
911	return 0;	1013	return 0;
912	}	1014	}
913		1015
914	static void	1016	inline void
915	call_pending (EV_P)	1017	call_pending (EV_P)
916	{	1018	{
917	int pri;	1019	int pri;
918		1020
919	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
920	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
921	{	1023	{
922	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
923		1025
924	if (p->w)	1026	if (expect_true (p->w))
925	{	1027	{
926	p->w->pending = 0;	1028	p->w->pending = 0;
927	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
928	}	1030	}
929	}	1031	}
930	}	1032	}
931		1033
932	static void	1034	inline void
933	timers_reify (EV_P)	1035	timers_reify (EV_P)
934	{	1036	{
935	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
936	{	1038	{
937	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
940		1042
941	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
942	if (w->repeat)	1044	if (w->repeat)
943	{	1045	{
944	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
945	((WT)w)->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
946	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
947	}	1053	}
948	else	1054	else
949	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
950		1056
951	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
952	}	1058	}
953	}	1059	}
954		1060
955	static void	1061	#if EV_PERIODICS
		1062	inline void
956	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
957	{	1064	{
958	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
959	{	1066	{
960	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
961		1068
962	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
963		1070
964	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
965	if (w->interval)	1072	if (w->reschedule_cb)
966	{	1073	{
		1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1076	downheap ((WT *)periodics, periodiccnt, 0);
		1077	}
		1078	else if (w->interval)
		1079	{
967	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
968	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
969	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
970	}	1083	}
971	else	1084	else
972	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
973		1086
974	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
975	}	1088	}
976	}	1089	}
977		1090
978	static void	1091	static void
979	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
983	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
984	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
985	{	1098	{
986	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
987		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
988	if (w->interval)	1103	else if (w->interval)
989	{
990	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
991
992	if (fabs (diff) >= 1e-4)
993	{
994	ev_periodic_stop (EV_A_ w);
995	ev_periodic_start (EV_A_ w);
996
997	i = 0; /* restart loop, inefficient, but time jumps should be rare */
998	}
999	}
1000	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
1001	}	1110	}
		1111	#endif
1002		1112
1003	inline int	1113	inline int
1004	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
1005	{	1115	{
1006	mn_now = get_clock ();	1116	mn_now = get_clock ();
1007		1117
1008	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1009	{	1119	{
1010	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
1011	return 0;	1121	return 0;
1012	}	1122	}
1013	else	1123	else
1014	{	1124	{
1015	now_floor = mn_now;	1125	now_floor = mn_now;
1016	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
1017	return 1;	1127	return 1;
1018	}	1128	}
1019	}	1129	}
1020		1130
1021	static void	1131	inline void
1022	time_update (EV_P)	1132	time_update (EV_P)
1023	{	1133	{
1024	int i;	1134	int i;
1025		1135
1026	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
1030	{	1140	{
1031	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
1032		1142
1033	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1034	{	1144	{
1035	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
1036		1146
1037	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1038	return; /* all is well */	1148	return; /* all is well */
1039		1149
1040	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
1041	mn_now = get_clock ();	1151	mn_now = get_clock ();
1042	now_floor = mn_now;	1152	now_floor = mn_now;
1043	}	1153	}
1044		1154
		1155	# if EV_PERIODICS
1045	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
1046	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
1047	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1048	}	1160	}
1049	}	1161	}
1050	else	1162	else
1051	#endif	1163	#endif
1052	{	1164	{
1053	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1054		1166
1055	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1056	{	1168	{
		1169	#if EV_PERIODICS
1057	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
1058		1172
1059	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
1060	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
1061	((WT)timers [i])->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
1062	}	1176	}
1063		1177
1064	mn_now = rt_now;	1178	mn_now = ev_rt_now;
1065	}	1179	}
1066	}	1180	}
1067		1181
1068	void	1182	void
1069	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
1083	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
1084	{	1198	{
1085	double block;	1199	double block;
1086	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1087		1201
1088	do	1202	while (activecnt)
1089	{	1203	{
1090	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
1091	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
1092	{	1206	{
1093	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1109	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
1110	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
1111	else	1225	else
1112	#endif	1226	#endif
1113	{	1227	{
1114	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
1115	mn_now = rt_now;	1229	mn_now = ev_rt_now;
1116	}	1230	}
1117		1231
1118	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1119	block = 0.;	1233	block = 0.;
1120	else	1234	else
…		…
1125	{	1239	{
1126	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1127	if (block > to) block = to;	1241	if (block > to) block = to;
1128	}	1242	}
1129		1243
		1244	#if EV_PERIODICS
1130	if (periodiccnt)	1245	if (periodiccnt)
1131	{	1246	{
1132	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1133	if (block > to) block = to;	1248	if (block > to) block = to;
1134	}	1249	}
		1250	#endif
1135		1251
1136	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1137	}	1253	}
1138		1254
1139	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1140		1256
1141	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1142	time_update (EV_A);	1258	time_update (EV_A);
1143		1259
1144	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1145	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1146	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1147		1265
1148	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1149	if (idlecnt && !any_pending (EV_A))	1267	if (idlecnt && !any_pending (EV_A))
1150	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1151		1269
1152	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1153	if (checkcnt)	1271	if (expect_false (checkcnt))
1154	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1155		1273
1156	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1157	}	1278	}
1158	while (activecnt && !loop_done);
1159		1279
1160	if (loop_done != 2)	1280	if (loop_done != 2)
1161	loop_done = 0;	1281	loop_done = 0;
1162	}	1282	}
1163		1283
…		…
1223	void	1343	void
1224	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1225	{	1345	{
1226	int fd = w->fd;	1346	int fd = w->fd;
1227		1347
1228	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1229	return;	1349	return;
1230		1350
1231	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1232		1352
1233	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
…		…
1239		1359
1240	void	1360	void
1241	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1242	{	1362	{
1243	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1244	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1245	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1246		1368
1247	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1248	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1249		1371
1250	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1251	}	1373	}
1252		1374
1253	void	1375	void
1254	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1255	{	1377	{
1256	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1257	return;	1379	return;
1258		1380
1259	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1260		1382
1261	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1262		1384
1263	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1264	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1265	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1266	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1267		1389
1268	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1269	}	1391	}
1270		1392
1271	void	1393	void
1272	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1273	{	1395	{
1274	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1275	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1276	return;	1398	return;
1277		1399
1278	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1279		1401
1280	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1281	{	1403	{
1282	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1283	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1284	}	1406	}
1285		1407
1286	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1287		1409
1288	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1289	}	1411	}
1290		1412
1291	void	1413	void
…		…
1294	if (ev_is_active (w))	1416	if (ev_is_active (w))
1295	{	1417	{
1296	if (w->repeat)	1418	if (w->repeat)
1297	{	1419	{
1298	((WT)w)->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1299	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1300	}	1422	}
1301	else	1423	else
1302	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1303	}	1425	}
1304	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1305	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1306	}	1431	}
1307		1432
		1433	#if EV_PERIODICS
1308	void	1434	void
1309	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1310	{	1436	{
1311	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1312	return;	1438	return;
1313		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1314	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1315
1316	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1317	if (w->interval)
1318	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1319		1448
1320	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1321	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1322	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1323	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1324		1453
1325	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1326	}	1455	}
1327		1456
1328	void	1457	void
1329	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1330	{	1459	{
1331	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1332	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1333	return;	1462	return;
1334		1463
1335	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1336		1465
1337	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1338	{	1467	{
1339	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1340	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1341	}	1470	}
1342		1471
1343	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1344	}	1473	}
1345		1474
1346	void	1475	void
		1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1477	{
		1478	/* TODO: use adjustheap and recalculation */
		1479	ev_periodic_stop (EV_A_ w);
		1480	ev_periodic_start (EV_A_ w);
		1481	}
		1482	#endif
		1483
		1484	void
1347	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1348	{	1486	{
1349	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1350	return;	1488	return;
1351		1489
1352	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1353	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1354	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1355	}	1493	}
1356		1494
1357	void	1495	void
1358	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1359	{	1497	{
1360	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1361	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1362	return;	1500	return;
1363		1501
1364	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1365	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1366	}	1504	}
1367		1505
1368	void	1506	void
1369	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1370	{	1508	{
1371	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1372	return;	1510	return;
1373		1511
1374	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1375	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1376	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1377	}	1515	}
1378		1516
1379	void	1517	void
1380	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1381	{	1519	{
1382	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1383	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1384	return;	1522	return;
1385		1523
1386	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1387	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1388	}	1526	}
1389		1527
1390	void	1528	void
1391	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1392	{	1530	{
1393	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1394	return;	1532	return;
1395		1533
1396	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1397	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1398	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1399	}	1537	}
1400		1538
1401	void	1539	void
1402	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1403	{	1541	{
1404	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1405	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1406	return;	1544	return;
1407		1545
1408	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1409	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1410	}	1548	}
…		…
1415		1553
1416	void	1554	void
1417	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1418	{	1556	{
1419	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1420	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1421	#endif	1559	#endif
1422	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1423	return;	1561	return;
1424		1562
1425	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1426		1564
1427	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1428	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1429	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1430		1568
1431	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1432	{	1570	{
1433	#if WIN32	1571	#if _WIN32
1434	signal (w->signum, sighandler);	1572	signal (w->signum, sighandler);
1435	#else	1573	#else
1436	struct sigaction sa;	1574	struct sigaction sa;
1437	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1438	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
…		…
1444		1582
1445	void	1583	void
1446	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1447	{	1585	{
1448	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1449	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1450	return;	1588	return;
1451		1589
1452	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1453	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1454		1592
…		…
1458		1596
1459	void	1597	void
1460	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1461	{	1599	{
1462	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1463	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1464	#endif	1602	#endif
1465	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1466	return;	1604	return;
1467		1605
1468	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1469	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1470	}	1608	}
1471		1609
1472	void	1610	void
1473	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1474	{	1612	{
1475	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1476	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1477	return;	1615	return;
1478		1616
1479	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1480	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1481	}	1619	}
…		…
1518	void	1656	void
1519	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1520	{	1658	{
1521	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1659	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1522		1660
1523	if (!once)	1661	if (expect_false (!once))
		1662	{
1524	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1525	else	1664	return;
1526	{	1665	}
		1666
1527	once->cb = cb;	1667	once->cb = cb;
1528	once->arg = arg;	1668	once->arg = arg;
1529		1669
1530	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1531	if (fd >= 0)	1671	if (fd >= 0)
1532	{	1672	{
1533	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1534	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1535	}	1675	}
1536		1676
1537	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1538	if (timeout >= 0.)	1678	if (timeout >= 0.)
1539	{	1679	{
1540	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1541	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1542	}
1543	}	1682	}
1544	}	1683	}
1545		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.76 by root, Wed Nov 7 18:47:26 2007 UTC vs. Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.76 by root, Wed Nov 7 18:47:26 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC