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

Comparing libev/ev.c (file contents):
Revision 1.78 by root, Thu Nov 8 21:08:56 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
…		…
321	void	383	void
322	ev_feed_event (EV_P_ void *w, int revents)	384	ev_feed_event (EV_P_ void *w, int revents)
323	{	385	{
324	W w_ = (W)w;	386	W w_ = (W)w;
325		387
326	if (w_->pending)	388	if (expect_false (w_->pending))
327	{	389	{
328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
329	return;	391	return;
330	}	392	}
331		393
332	w_->pending = ++pendingcnt [ABSPRI (w_)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
333	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);
334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336	}	398	}
337		399
338	static void	400	static void
…		…
342		404
343	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
344	ev_feed_event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
345	}	407	}
346		408
347	static void	409	inline void
348	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
349	{	411	{
350	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
351	struct ev_io *w;	413	struct ev_io *w;
352		414
353	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)
354	{	416	{
355	int ev = w->events & events;	417	int ev = w->events & revents;
356		418
357	if (ev)	419	if (ev)
358	ev_feed_event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
359	}	421	}
360	}	422	}
361		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
		428	}
		429
362	/*****************************************************************************/	430	/*****************************************************************************/
363		431
364	static void	432	inline void
365	fd_reify (EV_P)	433	fd_reify (EV_P)
366	{	434	{
367	int i;	435	int i;
368		436
369	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
375	int events = 0;	443	int events = 0;
376		444
377	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)
378	events \|= w->events;	446	events \|= w->events;
379		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
380	anfd->reify = 0;	457	anfd->reify = 0;
381		458
382	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
383	anfd->events = events;	460	anfd->events = events;
384	}	461	}
…		…
387	}	464	}
388		465
389	static void	466	static void
390	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
391	{	468	{
392	if (anfds [fd].reify)	469	if (expect_false (anfds [fd].reify))
393	return;	470	return;
394		471
395	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
396		473
397	++fdchangecnt;	474	++fdchangecnt;
398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
399	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
400	}	477	}
401		478
402	static void	479	static void
403	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
409	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
410	ev_feed_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);
411	}	488	}
412	}	489	}
413		490
414	static int	491	inline int
415	fd_valid (int fd)	492	fd_valid (int fd)
416	{	493	{
417	#ifdef WIN32	494	#ifdef _WIN32
418	return !!win32_get_osfhandle (fd);	495	return _get_osfhandle (fd) != -1;
419	#else	496	#else
420	return fcntl (fd, F_GETFD) != -1;	497	return fcntl (fd, F_GETFD) != -1;
421	#endif	498	#endif
422	}	499	}
423		500
…		…
503		580
504	heap [k] = w;	581	heap [k] = w;
505	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
506	}	583	}
507		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
		590	}
		591
508	/*****************************************************************************/	592	/*****************************************************************************/
509		593
510	typedef struct	594	typedef struct
511	{	595	{
512	WL head;	596	WL head;
…		…
533	}	617	}
534		618
535	static void	619	static void
536	sighandler (int signum)	620	sighandler (int signum)
537	{	621	{
538	#if WIN32	622	#if _WIN32
539	signal (signum, sighandler);	623	signal (signum, sighandler);
540	#endif	624	#endif
541		625
542	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
543		627
544	if (!gotsig)	628	if (!gotsig)
545	{	629	{
546	int old_errno = errno;	630	int old_errno = errno;
547	gotsig = 1;	631	gotsig = 1;
548	#ifdef WIN32
549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
550	#else
551	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
552	#endif
553	errno = old_errno;	633	errno = old_errno;
554	}	634	}
555	}	635	}
556		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
557	static void	657	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	659	{
560	WL w;
561	int signum;	660	int signum;
562		661
563	#ifdef WIN32
564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
565	#else
566	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
567	#endif
568	gotsig = 0;	663	gotsig = 0;
569		664
570	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
571	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
572	{	667	ev_feed_signal_event (EV_A_ signum + 1);
573	signals [signum].gotsig = 0;	668	}
574		669
575	for (w = signals [signum].head; w; w = w->next)	670	static void
576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
577	}	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
578	}	680	}
579		681
580	static void	682	static void
581	siginit (EV_P)	683	siginit (EV_P)
582	{	684	{
583	#ifndef WIN32	685	fd_intern (sigpipe [0]);
584	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
585	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
586
587	/* rather than sort out wether we really need nb, set it */
588	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
589	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
590	#endif
591		687
592	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
593	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
594	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
595	}	691	}
596		692
597	/*****************************************************************************/	693	/*****************************************************************************/
598		694
599	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
600		696
601	#ifndef WIN32	697	#ifndef _WIN32
602		698
603	static struct ev_signal childev;	699	static struct ev_signal childev;
604		700
605	#ifndef WCONTINUED	701	#ifndef WCONTINUED
606	# define WCONTINUED 0	702	# define WCONTINUED 0
…		…
638		734
639	#endif	735	#endif
640		736
641	/*****************************************************************************/	737	/*****************************************************************************/
642		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
643	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
644	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
645	#endif	744	#endif
646	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
647	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
667		766
668	/* 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 */
669	static int	768	static int
670	enable_secure (void)	769	enable_secure (void)
671	{	770	{
672	#ifdef WIN32	771	#ifdef _WIN32
673	return 0;	772	return 0;
674	#else	773	#else
675	return getuid () != geteuid ()	774	return getuid () != geteuid ()
676	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
677	#endif	776	#endif
678	}	777	}
679		778
680	int	779	unsigned int
681	ev_method (EV_P)	780	ev_method (EV_P)
682	{	781	{
683	return method;	782	return method;
684	}	783	}
685		784
686	static void	785	static void
687	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
688	{	787	{
689	if (!method)	788	if (!method)
690	{	789	{
691	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
692	{	791	{
…		…
694	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
695	have_monotonic = 1;	794	have_monotonic = 1;
696	}	795	}
697	#endif	796	#endif
698		797
699	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
700	mn_now = get_clock ();	799	mn_now = get_clock ();
701	now_floor = mn_now;	800	now_floor = mn_now;
702	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
703		802
704	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
705	if (!enable_secure () && getenv ("LIBEV_METHODS"))
706	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
707	else	805
708	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
709		808
710	method = 0;	809	method = 0;
711	#if EV_USE_WIN32	810	#if EV_USE_PORT
712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
713	#endif	812	#endif
714	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
716	#endif	815	#endif
717	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
719	#endif	818	#endif
720	#if EV_USE_POLL	819	#if EV_USE_POLL
721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
722	#endif	821	#endif
723	#if EV_USE_SELECT	822	#if EV_USE_SELECT
724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
725	#endif	824	#endif
726		825
727	ev_watcher_init (&sigev, sigcb);	826	ev_init (&sigev, sigcb);
728	ev_set_priority (&sigev, EV_MAXPRI);	827	ev_set_priority (&sigev, EV_MAXPRI);
729	}	828	}
730	}	829	}
731		830
732	void	831	static void
733	loop_destroy (EV_P)	832	loop_destroy (EV_P)
734	{	833	{
735	int i;	834	int i;
736		835
737	#if EV_USE_WIN32	836	#if EV_USE_PORT
738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
739	#endif	838	#endif
740	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
742	#endif	841	#endif
743	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
752		851
753	for (i = NUMPRI; i--; )	852	for (i = NUMPRI; i--; )
754	array_free (pending, [i]);	853	array_free (pending, [i]);
755		854
756	/* have to use the microsoft-never-gets-it-right macro */	855	/* have to use the microsoft-never-gets-it-right macro */
757	array_free_microshit (fdchange);	856	array_free (fdchange, EMPTY0);
758	array_free_microshit (timer);	857	array_free (timer, EMPTY0);
759	array_free_microshit (periodic);	858	#if EV_PERIODICS
760	array_free_microshit (idle);	859	array_free (periodic, EMPTY0);
761	array_free_microshit (prepare);	860	#endif
762	array_free_microshit (check);	861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
763		864
764	method = 0;	865	method = 0;
765	}	866	}
766		867
767	static void	868	static void
768	loop_fork (EV_P)	869	loop_fork (EV_P)
769	{	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
770	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
772	#endif
773	#if EV_USE_KQUEUE
774	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
775	#endif	879	#endif
776		880
777	if (ev_is_active (&sigev))	881	if (ev_is_active (&sigev))
778	{	882	{
779	/* default loop */	883	/* default loop */
…		…
792	postfork = 0;	896	postfork = 0;
793	}	897	}
794		898
795	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
796	struct ev_loop *	900	struct ev_loop *
797	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
798	{	902	{
799	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));
800		904
801	memset (loop, 0, sizeof (struct ev_loop));	905	memset (loop, 0, sizeof (struct ev_loop));
802		906
803	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
804		908
805	if (ev_method (EV_A))	909	if (ev_method (EV_A))
806	return loop;	910	return loop;
807		911
808	return 0;	912	return 0;
…		…
822	}	926	}
823		927
824	#endif	928	#endif
825		929
826	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
827	struct ev_loop default_loop_struct;
828	static struct ev_loop *default_loop;
829
830	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
831	#else	933	#else
832	static int default_loop;
833
834	int	934	int
		935	ev_default_loop (unsigned int flags)
835	#endif	936	#endif
836	ev_default_loop (int methods)
837	{	937	{
838	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
839	if (pipe (sigpipe))	939	if (pipe (sigpipe))
840	return 0;	940	return 0;
841		941
842	if (!default_loop)	942	if (!ev_default_loop_ptr)
843	{	943	{
844	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
845	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
846	#else	946	#else
847	default_loop = 1;	947	ev_default_loop_ptr = 1;
848	#endif	948	#endif
849		949
850	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
851		951
852	if (ev_method (EV_A))	952	if (ev_method (EV_A))
853	{	953	{
854	siginit (EV_A);	954	siginit (EV_A);
855		955
856	#ifndef WIN32	956	#ifndef _WIN32
857	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
858	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
859	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
860	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
861	#endif	961	#endif
862	}	962	}
863	else	963	else
864	default_loop = 0;	964	ev_default_loop_ptr = 0;
865	}	965	}
866		966
867	return default_loop;	967	return ev_default_loop_ptr;
868	}	968	}
869		969
870	void	970	void
871	ev_default_destroy (void)	971	ev_default_destroy (void)
872	{	972	{
873	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
874	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
875	#endif	975	#endif
876		976
877	#ifndef WIN32	977	#ifndef _WIN32
878	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
879	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
880	#endif	980	#endif
881		981
882	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
…		…
890		990
891	void	991	void
892	ev_default_fork (void)	992	ev_default_fork (void)
893	{	993	{
894	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
895	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
896	#endif	996	#endif
897		997
898	if (method)	998	if (method)
899	postfork = 1;	999	postfork = 1;
900	}	1000	}
…		…
911	return 1;	1011	return 1;
912		1012
913	return 0;	1013	return 0;
914	}	1014	}
915		1015
916	static void	1016	inline void
917	call_pending (EV_P)	1017	call_pending (EV_P)
918	{	1018	{
919	int pri;	1019	int pri;
920		1020
921	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
922	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
923	{	1023	{
924	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
925		1025
926	if (p->w)	1026	if (expect_true (p->w))
927	{	1027	{
928	p->w->pending = 0;	1028	p->w->pending = 0;
929	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
930	}	1030	}
931	}	1031	}
932	}	1032	}
933		1033
934	static void	1034	inline void
935	timers_reify (EV_P)	1035	timers_reify (EV_P)
936	{	1036	{
937	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
938	{	1038	{
939	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
942		1042
943	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
944	if (w->repeat)	1044	if (w->repeat)
945	{	1045	{
946	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
947	((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
948	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
949	}	1053	}
950	else	1054	else
951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
952		1056
953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
954	}	1058	}
955	}	1059	}
956		1060
957	static void	1061	#if EV_PERIODICS
		1062	inline void
958	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
959	{	1064	{
960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
961	{	1066	{
962	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
963		1068
964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
965		1070
966	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
967	if (w->reschedule_cb)	1072	if (w->reschedule_cb)
968	{	1073	{
969	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
970
971	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
972	downheap ((WT *)periodics, periodiccnt, 0);	1076	downheap ((WT *)periodics, periodiccnt, 0);
973	}	1077	}
974	else if (w->interval)	1078	else if (w->interval)
975	{	1079	{
976	((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;
977	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));
978	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
979	}	1083	}
980	else	1084	else
981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
982		1086
…		…
993	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
994	{	1098	{
995	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
996		1100
997	if (w->reschedule_cb)	1101	if (w->reschedule_cb)
998	((WT)w)->at = w->reschedule_cb (w, rt_now);	1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
999	else if (w->interval)	1103	else if (w->interval)
1000	((WT)w)->at += 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;
1001	}	1105	}
1002		1106
1003	/* now rebuild the heap */	1107	/* now rebuild the heap */
1004	for (i = periodiccnt >> 1; i--; )	1108	for (i = periodiccnt >> 1; i--; )
1005	downheap ((WT *)periodics, periodiccnt, i);	1109	downheap ((WT *)periodics, periodiccnt, i);
1006	}	1110	}
		1111	#endif
1007		1112
1008	inline int	1113	inline int
1009	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
1010	{	1115	{
1011	mn_now = get_clock ();	1116	mn_now = get_clock ();
1012		1117
1013	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1014	{	1119	{
1015	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
1016	return 0;	1121	return 0;
1017	}	1122	}
1018	else	1123	else
1019	{	1124	{
1020	now_floor = mn_now;	1125	now_floor = mn_now;
1021	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
1022	return 1;	1127	return 1;
1023	}	1128	}
1024	}	1129	}
1025		1130
1026	static void	1131	inline void
1027	time_update (EV_P)	1132	time_update (EV_P)
1028	{	1133	{
1029	int i;	1134	int i;
1030		1135
1031	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
1035	{	1140	{
1036	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
1037		1142
1038	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 */
1039	{	1144	{
1040	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
1041		1146
1042	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1043	return; /* all is well */	1148	return; /* all is well */
1044		1149
1045	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
1046	mn_now = get_clock ();	1151	mn_now = get_clock ();
1047	now_floor = mn_now;	1152	now_floor = mn_now;
1048	}	1153	}
1049		1154
		1155	# if EV_PERIODICS
1050	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
1051	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
1052	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1053	}	1160	}
1054	}	1161	}
1055	else	1162	else
1056	#endif	1163	#endif
1057	{	1164	{
1058	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1059		1166
1060	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))
1061	{	1168	{
		1169	#if EV_PERIODICS
1062	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
1063		1172
1064	/* 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 */
1065	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
1066	((WT)timers [i])->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
1067	}	1176	}
1068		1177
1069	mn_now = rt_now;	1178	mn_now = ev_rt_now;
1070	}	1179	}
1071	}	1180	}
1072		1181
1073	void	1182	void
1074	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
1088	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
1089	{	1198	{
1090	double block;	1199	double block;
1091	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1092		1201
1093	do	1202	while (activecnt)
1094	{	1203	{
1095	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
1096	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
1097	{	1206	{
1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1114	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
1115	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
1116	else	1225	else
1117	#endif	1226	#endif
1118	{	1227	{
1119	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
1120	mn_now = rt_now;	1229	mn_now = ev_rt_now;
1121	}	1230	}
1122		1231
1123	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1124	block = 0.;	1233	block = 0.;
1125	else	1234	else
…		…
1130	{	1239	{
1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1132	if (block > to) block = to;	1241	if (block > to) block = to;
1133	}	1242	}
1134		1243
		1244	#if EV_PERIODICS
1135	if (periodiccnt)	1245	if (periodiccnt)
1136	{	1246	{
1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1138	if (block > to) block = to;	1248	if (block > to) block = to;
1139	}	1249	}
		1250	#endif
1140		1251
1141	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1142	}	1253	}
1143		1254
1144	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1145		1256
1146	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1147	time_update (EV_A);	1258	time_update (EV_A);
1148		1259
1149	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1150	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1151	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1152		1265
1153	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1154	if (idlecnt && !any_pending (EV_A))	1267	if (idlecnt && !any_pending (EV_A))
1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1156		1269
1157	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1158	if (checkcnt)	1271	if (expect_false (checkcnt))
1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1160		1273
1161	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1162	}	1278	}
1163	while (activecnt && !loop_done);
1164		1279
1165	if (loop_done != 2)	1280	if (loop_done != 2)
1166	loop_done = 0;	1281	loop_done = 0;
1167	}	1282	}
1168		1283
…		…
1228	void	1343	void
1229	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1230	{	1345	{
1231	int fd = w->fd;	1346	int fd = w->fd;
1232		1347
1233	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1234	return;	1349	return;
1235		1350
1236	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1237		1352
1238	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
…		…
1244		1359
1245	void	1360	void
1246	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1247	{	1362	{
1248	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1249	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1250	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1251		1368
1252	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1253	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1254		1371
1255	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1256	}	1373	}
1257		1374
1258	void	1375	void
1259	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1260	{	1377	{
1261	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1262	return;	1379	return;
1263		1380
1264	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1265		1382
1266	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.));
1267		1384
1268	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1270	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1271	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1272		1389
1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1274	}	1391	}
1275		1392
1276	void	1393	void
1277	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1278	{	1395	{
1279	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1280	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1281	return;	1398	return;
1282		1399
1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1284		1401
1285	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1286	{	1403	{
1287	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1289	}	1406	}
1290		1407
1291	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1292		1409
1293	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1294	}	1411	}
1295		1412
1296	void	1413	void
…		…
1299	if (ev_is_active (w))	1416	if (ev_is_active (w))
1300	{	1417	{
1301	if (w->repeat)	1418	if (w->repeat)
1302	{	1419	{
1303	((WT)w)->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1305	}	1422	}
1306	else	1423	else
1307	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1308	}	1425	}
1309	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1310	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1311	}	1431	}
1312		1432
		1433	#if EV_PERIODICS
1313	void	1434	void
1314	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1315	{	1436	{
1316	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1317	return;	1438	return;
1318		1439
1319	if (w->reschedule_cb)	1440	if (w->reschedule_cb)
1320	((WT)w)->at = w->reschedule_cb (w, rt_now);	1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1321	else if (w->interval)	1442	else if (w->interval)
1322	{	1443	{
1323	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.));
1324	/* 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 */
1325	((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;
1326	}	1447	}
1327		1448
1328	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1330	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1331	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1332		1453
1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1334	}	1455	}
1335		1456
1336	void	1457	void
1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1338	{	1459	{
1339	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1340	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1341	return;	1462	return;
1342		1463
1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1344		1465
1345	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1346	{	1467	{
1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1349	}	1470	}
1350		1471
1351	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1352	}	1473	}
1353		1474
1354	void	1475	void
1355	ev_periodic_again (EV_P_ struct ev_periodic *w)	1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
1356	{	1477	{
		1478	/* TODO: use adjustheap and recalculation */
1357	ev_periodic_stop (EV_A_ w);	1479	ev_periodic_stop (EV_A_ w);
1358	ev_periodic_start (EV_A_ w);	1480	ev_periodic_start (EV_A_ w);
1359	}	1481	}
		1482	#endif
1360		1483
1361	void	1484	void
1362	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1363	{	1486	{
1364	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1365	return;	1488	return;
1366		1489
1367	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1369	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1370	}	1493	}
1371		1494
1372	void	1495	void
1373	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1374	{	1497	{
1375	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1376	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1377	return;	1500	return;
1378		1501
1379	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1380	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1381	}	1504	}
1382		1505
1383	void	1506	void
1384	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1385	{	1508	{
1386	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1387	return;	1510	return;
1388		1511
1389	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1391	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1392	}	1515	}
1393		1516
1394	void	1517	void
1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1396	{	1519	{
1397	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1399	return;	1522	return;
1400		1523
1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1402	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1403	}	1526	}
1404		1527
1405	void	1528	void
1406	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1407	{	1530	{
1408	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1409	return;	1532	return;
1410		1533
1411	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1413	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1414	}	1537	}
1415		1538
1416	void	1539	void
1417	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1418	{	1541	{
1419	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1421	return;	1544	return;
1422		1545
1423	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1424	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1425	}	1548	}
…		…
1430		1553
1431	void	1554	void
1432	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1433	{	1556	{
1434	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1435	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));
1436	#endif	1559	#endif
1437	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1438	return;	1561	return;
1439		1562
1440	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));
1441		1564
1442	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1445		1568
1446	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1447	{	1570	{
1448	#if WIN32	1571	#if _WIN32
1449	signal (w->signum, sighandler);	1572	signal (w->signum, sighandler);
1450	#else	1573	#else
1451	struct sigaction sa;	1574	struct sigaction sa;
1452	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1453	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
…		…
1459		1582
1460	void	1583	void
1461	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1462	{	1585	{
1463	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1464	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1465	return;	1588	return;
1466		1589
1467	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1468	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1469		1592
…		…
1473		1596
1474	void	1597	void
1475	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1476	{	1599	{
1477	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1478	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));
1479	#endif	1602	#endif
1480	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1481	return;	1604	return;
1482		1605
1483	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1485	}	1608	}
1486		1609
1487	void	1610	void
1488	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1489	{	1612	{
1490	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1491	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1492	return;	1615	return;
1493		1616
1494	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1495	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1496	}	1619	}
…		…
1533	void	1656	void
1534	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)
1535	{	1658	{
1536	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));
1537		1660
1538	if (!once)	1661	if (expect_false (!once))
		1662	{
1539	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1540	else	1664	return;
1541	{	1665	}
		1666
1542	once->cb = cb;	1667	once->cb = cb;
1543	once->arg = arg;	1668	once->arg = arg;
1544		1669
1545	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1546	if (fd >= 0)	1671	if (fd >= 0)
1547	{	1672	{
1548	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1549	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1550	}	1675	}
1551		1676
1552	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1553	if (timeout >= 0.)	1678	if (timeout >= 0.)
1554	{	1679	{
1555	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1556	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1557	}
1558	}	1682	}
1559	}	1683	}
1560		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.78 by root, Thu Nov 8 21:08:56 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 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC