[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 1.123 by root, Sat Nov 17 02:23:54 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
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
53	# endif	66	# endif
54		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
…		…
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#include <signal.h>	82	#include <signal.h>
70		83
71	#ifndef WIN32	84	#ifndef _WIN32
72	# include <unistd.h>	85	# include <unistd.h>
73	# include <sys/time.h>	86	# include <sys/time.h>
74	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	93	# endif
		94	#endif
		95
76	/**/	96	/**/
77		97
78	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 0
		100	#endif
		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 0
80	#endif	104	#endif
81		105
82	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
84	#endif	108	#endif
85		109
86	#ifndef EV_USE_POLL	110	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	111	# ifdef _WIN32
		112	# define EV_USE_POLL 0
		113	# else
		114	# define EV_USE_POLL 1
		115	# endif
88	#endif	116	#endif
89		117
90	#ifndef EV_USE_EPOLL	118	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	119	# define EV_USE_EPOLL 0
92	#endif	120	#endif
93		121
94	#ifndef EV_USE_KQUEUE	122	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	123	# define EV_USE_KQUEUE 0
96	#endif	124	#endif
97		125
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	126	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	127	# define EV_USE_PORT 0
110	#endif	128	#endif
111		129
112	/**/	130	/**/
		131
		132	/* darwin simply cannot be helped */
		133	#ifdef __APPLE__
		134	# undef EV_USE_POLL
		135	# undef EV_USE_KQUEUE
		136	#endif
113		137
114	#ifndef CLOCK_MONOTONIC	138	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	139	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	140	# define EV_USE_MONOTONIC 0
117	#endif	141	#endif
…		…
119	#ifndef CLOCK_REALTIME	143	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	144	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	145	# define EV_USE_REALTIME 0
122	#endif	146	#endif
123		147
		148	#if EV_SELECT_IS_WINSOCKET
		149	# include <winsock.h>
		150	#endif
		151
124	/**/	152	/**/
125		153
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	154	#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) */	155	#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 */	156	#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 */	157	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		158
		159	#ifdef EV_H
		160	# include EV_H
		161	#else
131	#include "ev.h"	162	# include "ev.h"
		163	#endif
132		164
133	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	167	# define inline static inline
136	#else	168	#else
137	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
138	# define inline static	170	# define inline static
139	#endif	171	#endif
140		172
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
143		175
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
147	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
150		185
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		187
		188	#ifdef _WIN32
153	#include "ev_win32.c"	189	# include "ev_win32.c"
		190	#endif
154		191
155	/*****************************************************************************/	192	/*****************************************************************************/
156		193
157	static void (syserr_cb)(const char msg);	194	static void (syserr_cb)(const char msg);
158		195
…		…
205	typedef struct	242	typedef struct
206	{	243	{
207	WL head;	244	WL head;
208	unsigned char events;	245	unsigned char events;
209	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
210	} ANFD;	250	} ANFD;
211		251
212	typedef struct	252	typedef struct
213	{	253	{
214	W w;	254	W w;
215	int events;	255	int events;
216	} ANPENDING;	256	} ANPENDING;
217		257
218	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
219		259
220	struct ev_loop	260	struct ev_loop
221	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	265	#include "ev_vars.h"
224	};
225	# undef VAR	266	#undef VAR
		267	};
226	# include "ev_wrap.h"	268	#include "ev_wrap.h"
		269
		270	static struct ev_loop default_loop_struct;
		271	struct ev_loop *ev_default_loop_ptr;
227		272
228	#else	273	#else
229		274
		275	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	277	#include "ev_vars.h"
232	# undef VAR	278	#undef VAR
		279
		280	static int ev_default_loop_ptr;
233		281
234	#endif	282	#endif
235		283
236	/*****************************************************************************/	284	/*****************************************************************************/
237		285
238	inline ev_tstamp	286	ev_tstamp
239	ev_time (void)	287	ev_time (void)
240	{	288	{
241	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
242	struct timespec ts;	290	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	310	#endif
263		311
264	return ev_time ();	312	return ev_time ();
265	}	313	}
266		314
		315	#if EV_MULTIPLICITY
267	ev_tstamp	316	ev_tstamp
268	ev_now (EV_P)	317	ev_now (EV_P)
269	{	318	{
270	return rt_now;	319	return ev_rt_now;
271	}	320	}
		321	#endif
272		322
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	323	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		324
275	#define array_needsize(type,base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
277	{ \	327	{ \
278	int newcnt = cur; \	328	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	343	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	344	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	346	}
297		347
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) \	348	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		350
306	/*****************************************************************************/	351	/*****************************************************************************/
307		352
…		…
321	void	366	void
322	ev_feed_event (EV_P_ void *w, int revents)	367	ev_feed_event (EV_P_ void *w, int revents)
323	{	368	{
324	W w_ = (W)w;	369	W w_ = (W)w;
325		370
326	if (w_->pending)	371	if (expect_false (w_->pending))
327	{	372	{
328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	373	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
329	return;	374	return;
330	}	375	}
331		376
332	w_->pending = ++pendingcnt [ABSPRI (w_)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336	}	381	}
337		382
338	static void	383	static void
…		…
342		387
343	for (i = 0; i < eventcnt; ++i)	388	for (i = 0; i < eventcnt; ++i)
344	ev_feed_event (EV_A_ events [i], type);	389	ev_feed_event (EV_A_ events [i], type);
345	}	390	}
346		391
347	static void	392	inline void
348	fd_event (EV_P_ int fd, int events)	393	fd_event (EV_P_ int fd, int revents)
349	{	394	{
350	ANFD *anfd = anfds + fd;	395	ANFD *anfd = anfds + fd;
351	struct ev_io *w;	396	struct ev_io *w;
352		397
353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	398	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
354	{	399	{
355	int ev = w->events & events;	400	int ev = w->events & revents;
356		401
357	if (ev)	402	if (ev)
358	ev_feed_event (EV_A_ (W)w, ev);	403	ev_feed_event (EV_A_ (W)w, ev);
359	}	404	}
360	}	405	}
361		406
		407	void
		408	ev_feed_fd_event (EV_P_ int fd, int revents)
		409	{
		410	fd_event (EV_A_ fd, revents);
		411	}
		412
362	/*****************************************************************************/	413	/*****************************************************************************/
363		414
364	static void	415	inline void
365	fd_reify (EV_P)	416	fd_reify (EV_P)
366	{	417	{
367	int i;	418	int i;
368		419
369	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
375	int events = 0;	426	int events = 0;
376		427
377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	428	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
378	events \|= w->events;	429	events \|= w->events;
379		430
		431	#if EV_SELECT_IS_WINSOCKET
		432	if (events)
		433	{
		434	unsigned long argp;
		435	anfd->handle = _get_osfhandle (fd);
		436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		437	}
		438	#endif
		439
380	anfd->reify = 0;	440	anfd->reify = 0;
381		441
382	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
383	anfd->events = events;	443	anfd->events = events;
384	}	444	}
…		…
387	}	447	}
388		448
389	static void	449	static void
390	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
391	{	451	{
392	if (anfds [fd].reify)	452	if (expect_false (anfds [fd].reify))
393	return;	453	return;
394		454
395	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
396		456
397	++fdchangecnt;	457	++fdchangecnt;
398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
399	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
400	}	460	}
401		461
402	static void	462	static void
403	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
409	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
410	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	470	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
411	}	471	}
412	}	472	}
413		473
414	static int	474	inline int
415	fd_valid (int fd)	475	fd_valid (int fd)
416	{	476	{
417	#ifdef WIN32	477	#ifdef _WIN32
418	return !!win32_get_osfhandle (fd);	478	return _get_osfhandle (fd) != -1;
419	#else	479	#else
420	return fcntl (fd, F_GETFD) != -1;	480	return fcntl (fd, F_GETFD) != -1;
421	#endif	481	#endif
422	}	482	}
423		483
…		…
503		563
504	heap [k] = w;	564	heap [k] = w;
505	((W)heap [k])->active = k + 1;	565	((W)heap [k])->active = k + 1;
506	}	566	}
507		567
		568	inline void
		569	adjustheap (WT *heap, int N, int k)
		570	{
		571	upheap (heap, k);
		572	downheap (heap, N, k);
		573	}
		574
508	/*****************************************************************************/	575	/*****************************************************************************/
509		576
510	typedef struct	577	typedef struct
511	{	578	{
512	WL head;	579	WL head;
…		…
533	}	600	}
534		601
535	static void	602	static void
536	sighandler (int signum)	603	sighandler (int signum)
537	{	604	{
538	#if WIN32	605	#if _WIN32
539	signal (signum, sighandler);	606	signal (signum, sighandler);
540	#endif	607	#endif
541		608
542	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
543		610
544	if (!gotsig)	611	if (!gotsig)
545	{	612	{
546	int old_errno = errno;	613	int old_errno = errno;
547	gotsig = 1;	614	gotsig = 1;
548	#ifdef WIN32
549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
550	#else
551	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
552	#endif
553	errno = old_errno;	616	errno = old_errno;
554	}	617	}
555	}	618	}
556		619
		620	void
		621	ev_feed_signal_event (EV_P_ int signum)
		622	{
		623	WL w;
		624
		625	#if EV_MULTIPLICITY
		626	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		627	#endif
		628
		629	--signum;
		630
		631	if (signum < 0 \|\| signum >= signalmax)
		632	return;
		633
		634	signals [signum].gotsig = 0;
		635
		636	for (w = signals [signum].head; w; w = w->next)
		637	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		638	}
		639
557	static void	640	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	642	{
560	WL w;
561	int signum;	643	int signum;
562		644
563	#ifdef WIN32
564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
565	#else
566	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
567	#endif
568	gotsig = 0;	646	gotsig = 0;
569		647
570	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
571	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
572	{	650	ev_feed_signal_event (EV_A_ signum + 1);
573	signals [signum].gotsig = 0;	651	}
574		652
575	for (w = signals [signum].head; w; w = w->next)	653	static void
576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	654	fd_intern (int fd)
577	}	655	{
		656	#ifdef _WIN32
		657	int arg = 1;
		658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		659	#else
		660	fcntl (fd, F_SETFD, FD_CLOEXEC);
		661	fcntl (fd, F_SETFL, O_NONBLOCK);
		662	#endif
578	}	663	}
579		664
580	static void	665	static void
581	siginit (EV_P)	666	siginit (EV_P)
582	{	667	{
583	#ifndef WIN32	668	fd_intern (sigpipe [0]);
584	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	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		670
592	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
593	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
594	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
595	}	674	}
596		675
597	/*****************************************************************************/	676	/*****************************************************************************/
598		677
599	static struct ev_child *childs [PID_HASHSIZE];	678	static struct ev_child *childs [PID_HASHSIZE];
600		679
601	#ifndef WIN32	680	#ifndef _WIN32
602		681
603	static struct ev_signal childev;	682	static struct ev_signal childev;
604		683
605	#ifndef WCONTINUED	684	#ifndef WCONTINUED
606	# define WCONTINUED 0	685	# define WCONTINUED 0
…		…
638		717
639	#endif	718	#endif
640		719
641	/*****************************************************************************/	720	/*****************************************************************************/
642		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
643	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
644	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
645	#endif	727	#endif
646	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
647	# include "ev_epoll.c"	729	# include "ev_epoll.c"
…		…
667		749
668	/* return true if we are running with elevated privileges and should ignore env variables */	750	/* return true if we are running with elevated privileges and should ignore env variables */
669	static int	751	static int
670	enable_secure (void)	752	enable_secure (void)
671	{	753	{
672	#ifdef WIN32	754	#ifdef _WIN32
673	return 0;	755	return 0;
674	#else	756	#else
675	return getuid () != geteuid ()	757	return getuid () != geteuid ()
676	\|\| getgid () != getegid ();	758	\|\| getgid () != getegid ();
677	#endif	759	#endif
678	}	760	}
679		761
680	int	762	unsigned int
681	ev_method (EV_P)	763	ev_method (EV_P)
682	{	764	{
683	return method;	765	return method;
684	}	766	}
685		767
686	static void	768	static void
687	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
688	{	770	{
689	if (!method)	771	if (!method)
690	{	772	{
691	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
692	{	774	{
…		…
694	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
695	have_monotonic = 1;	777	have_monotonic = 1;
696	}	778	}
697	#endif	779	#endif
698		780
699	rt_now = ev_time ();	781	ev_rt_now = ev_time ();
700	mn_now = get_clock ();	782	mn_now = get_clock ();
701	now_floor = mn_now;	783	now_floor = mn_now;
702	rtmn_diff = rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
703		785
704	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
705	if (!enable_secure () && getenv ("LIBEV_METHODS"))
706	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
707	else	788
708	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags \|= 0x0000ffff;
709		791
710	method = 0;	792	method = 0;
711	#if EV_USE_WIN32	793	#if EV_USE_PORT
712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
713	#endif	795	#endif
714	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
716	#endif	798	#endif
717	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
719	#endif	801	#endif
720	#if EV_USE_POLL	802	#if EV_USE_POLL
721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
722	#endif	804	#endif
723	#if EV_USE_SELECT	805	#if EV_USE_SELECT
724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
725	#endif	807	#endif
726		808
727	ev_watcher_init (&sigev, sigcb);	809	ev_init (&sigev, sigcb);
728	ev_set_priority (&sigev, EV_MAXPRI);	810	ev_set_priority (&sigev, EV_MAXPRI);
729	}	811	}
730	}	812	}
731		813
732	void	814	void
733	loop_destroy (EV_P)	815	loop_destroy (EV_P)
734	{	816	{
735	int i;	817	int i;
736		818
737	#if EV_USE_WIN32	819	#if EV_USE_PORT
738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
739	#endif	821	#endif
740	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
742	#endif	824	#endif
743	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
…		…
752		834
753	for (i = NUMPRI; i--; )	835	for (i = NUMPRI; i--; )
754	array_free (pending, [i]);	836	array_free (pending, [i]);
755		837
756	/* have to use the microsoft-never-gets-it-right macro */	838	/* have to use the microsoft-never-gets-it-right macro */
757	array_free_microshit (fdchange);	839	array_free (fdchange, EMPTY0);
758	array_free_microshit (timer);	840	array_free (timer, EMPTY0);
759	array_free_microshit (periodic);	841	#if EV_PERIODICS
760	array_free_microshit (idle);	842	array_free (periodic, EMPTY0);
761	array_free_microshit (prepare);	843	#endif
762	array_free_microshit (check);	844	array_free (idle, EMPTY0);
		845	array_free (prepare, EMPTY0);
		846	array_free (check, EMPTY0);
763		847
764	method = 0;	848	method = 0;
765	}	849	}
766		850
767	static void	851	static void
768	loop_fork (EV_P)	852	loop_fork (EV_P)
769	{	853	{
		854	#if EV_USE_PORT
		855	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		856	#endif
		857	#if EV_USE_KQUEUE
		858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		859	#endif
770	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	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	862	#endif
776		863
777	if (ev_is_active (&sigev))	864	if (ev_is_active (&sigev))
778	{	865	{
779	/* default loop */	866	/* default loop */
…		…
792	postfork = 0;	879	postfork = 0;
793	}	880	}
794		881
795	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
796	struct ev_loop *	883	struct ev_loop *
797	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
798	{	885	{
799	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	886	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
800		887
801	memset (loop, 0, sizeof (struct ev_loop));	888	memset (loop, 0, sizeof (struct ev_loop));
802		889
803	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
804		891
805	if (ev_method (EV_A))	892	if (ev_method (EV_A))
806	return loop;	893	return loop;
807		894
808	return 0;	895	return 0;
…		…
822	}	909	}
823		910
824	#endif	911	#endif
825		912
826	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
827	struct ev_loop default_loop_struct;
828	static struct ev_loop *default_loop;
829
830	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_ (unsigned int flags)
831	#else	916	#else
832	static int default_loop;
833
834	int	917	int
		918	ev_default_loop (unsigned int flags)
835	#endif	919	#endif
836	ev_default_loop (int methods)
837	{	920	{
838	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
839	if (pipe (sigpipe))	922	if (pipe (sigpipe))
840	return 0;	923	return 0;
841		924
842	if (!default_loop)	925	if (!ev_default_loop_ptr)
843	{	926	{
844	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
845	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
846	#else	929	#else
847	default_loop = 1;	930	ev_default_loop_ptr = 1;
848	#endif	931	#endif
849		932
850	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
851		934
852	if (ev_method (EV_A))	935	if (ev_method (EV_A))
853	{	936	{
854	siginit (EV_A);	937	siginit (EV_A);
855		938
856	#ifndef WIN32	939	#ifndef _WIN32
857	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
858	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
859	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
860	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
861	#endif	944	#endif
862	}	945	}
863	else	946	else
864	default_loop = 0;	947	ev_default_loop_ptr = 0;
865	}	948	}
866		949
867	return default_loop;	950	return ev_default_loop_ptr;
868	}	951	}
869		952
870	void	953	void
871	ev_default_destroy (void)	954	ev_default_destroy (void)
872	{	955	{
873	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
874	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
875	#endif	958	#endif
876		959
877	#ifndef WIN32	960	#ifndef _WIN32
878	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
879	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
880	#endif	963	#endif
881		964
882	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
…		…
890		973
891	void	974	void
892	ev_default_fork (void)	975	ev_default_fork (void)
893	{	976	{
894	#if EV_MULTIPLICITY	977	#if EV_MULTIPLICITY
895	struct ev_loop *loop = default_loop;	978	struct ev_loop *loop = ev_default_loop_ptr;
896	#endif	979	#endif
897		980
898	if (method)	981	if (method)
899	postfork = 1;	982	postfork = 1;
900	}	983	}
…		…
911	return 1;	994	return 1;
912		995
913	return 0;	996	return 0;
914	}	997	}
915		998
916	static void	999	inline void
917	call_pending (EV_P)	1000	call_pending (EV_P)
918	{	1001	{
919	int pri;	1002	int pri;
920		1003
921	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
922	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
923	{	1006	{
924	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
925		1008
926	if (p->w)	1009	if (expect_true (p->w))
927	{	1010	{
928	p->w->pending = 0;	1011	p->w->pending = 0;
929	p->w->cb (EV_A_ p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
930	}	1013	}
931	}	1014	}
932	}	1015	}
933		1016
934	static void	1017	inline void
935	timers_reify (EV_P)	1018	timers_reify (EV_P)
936	{	1019	{
937	while (timercnt && ((WT)timers [0])->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
938	{	1021	{
939	struct ev_timer *w = timers [0];	1022	struct ev_timer *w = timers [0];
…		…
942		1025
943	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
944	if (w->repeat)	1027	if (w->repeat)
945	{	1028	{
946	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1030
947	((WT)w)->at = mn_now + w->repeat;	1031	((WT)w)->at += w->repeat;
		1032	if (((WT)w)->at < mn_now)
		1033	((WT)w)->at = mn_now;
		1034
948	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
949	}	1036	}
950	else	1037	else
951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
952		1039
953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
954	}	1041	}
955	}	1042	}
956		1043
957	static void	1044	#if EV_PERIODICS
		1045	inline void
958	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
959	{	1047	{
960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
961	{	1049	{
962	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
963		1051
964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
965		1053
966	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
967	if (w->reschedule_cb)	1055	if (w->reschedule_cb)
968	{	1056	{
969	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1057	((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));	1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
972	downheap ((WT *)periodics, periodiccnt, 0);	1059	downheap ((WT *)periodics, periodiccnt, 0);
973	}	1060	}
974	else if (w->interval)	1061	else if (w->interval)
975	{	1062	{
976	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1063	((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));	1064	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);	1065	downheap ((WT *)periodics, periodiccnt, 0);
979	}	1066	}
980	else	1067	else
981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
982		1069
…		…
993	for (i = 0; i < periodiccnt; ++i)	1080	for (i = 0; i < periodiccnt; ++i)
994	{	1081	{
995	struct ev_periodic *w = periodics [i];	1082	struct ev_periodic *w = periodics [i];
996		1083
997	if (w->reschedule_cb)	1084	if (w->reschedule_cb)
998	((WT)w)->at = w->reschedule_cb (w, rt_now);	1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
999	else if (w->interval)	1086	else if (w->interval)
1000	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1087	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1001	}	1088	}
1002		1089
1003	/* now rebuild the heap */	1090	/* now rebuild the heap */
1004	for (i = periodiccnt >> 1; i--; )	1091	for (i = periodiccnt >> 1; i--; )
1005	downheap ((WT *)periodics, periodiccnt, i);	1092	downheap ((WT *)periodics, periodiccnt, i);
1006	}	1093	}
		1094	#endif
1007		1095
1008	inline int	1096	inline int
1009	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
1010	{	1098	{
1011	mn_now = get_clock ();	1099	mn_now = get_clock ();
1012		1100
1013	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1014	{	1102	{
1015	rt_now = rtmn_diff + mn_now;	1103	ev_rt_now = rtmn_diff + mn_now;
1016	return 0;	1104	return 0;
1017	}	1105	}
1018	else	1106	else
1019	{	1107	{
1020	now_floor = mn_now;	1108	now_floor = mn_now;
1021	rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
1022	return 1;	1110	return 1;
1023	}	1111	}
1024	}	1112	}
1025		1113
1026	static void	1114	inline void
1027	time_update (EV_P)	1115	time_update (EV_P)
1028	{	1116	{
1029	int i;	1117	int i;
1030		1118
1031	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
1035	{	1123	{
1036	ev_tstamp odiff = rtmn_diff;	1124	ev_tstamp odiff = rtmn_diff;
1037		1125
1038	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1126	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1039	{	1127	{
1040	rtmn_diff = rt_now - mn_now;	1128	rtmn_diff = ev_rt_now - mn_now;
1041		1129
1042	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1043	return; /* all is well */	1131	return; /* all is well */
1044		1132
1045	rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
1046	mn_now = get_clock ();	1134	mn_now = get_clock ();
1047	now_floor = mn_now;	1135	now_floor = mn_now;
1048	}	1136	}
1049		1137
		1138	# if EV_PERIODICS
1050	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
1051	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
1052	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1053	}	1143	}
1054	}	1144	}
1055	else	1145	else
1056	#endif	1146	#endif
1057	{	1147	{
1058	rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
1059		1149
1060	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1150	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1061	{	1151	{
		1152	#if EV_PERIODICS
1062	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
1063		1155
1064	/* adjust timers. this is easy, as the offset is the same for all */	1156	/* adjust timers. this is easy, as the offset is the same for all */
1065	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
1066	((WT)timers [i])->at += rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
1067	}	1159	}
1068		1160
1069	mn_now = rt_now;	1161	mn_now = ev_rt_now;
1070	}	1162	}
1071	}	1163	}
1072		1164
1073	void	1165	void
1074	ev_ref (EV_P)	1166	ev_ref (EV_P)
…		…
1088	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
1089	{	1181	{
1090	double block;	1182	double block;
1091	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1092		1184
1093	do	1185	while (activecnt)
1094	{	1186	{
1095	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
1096	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
1097	{	1189	{
1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1114	if (expect_true (have_monotonic))	1206	if (expect_true (have_monotonic))
1115	time_update_monotonic (EV_A);	1207	time_update_monotonic (EV_A);
1116	else	1208	else
1117	#endif	1209	#endif
1118	{	1210	{
1119	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
1120	mn_now = rt_now;	1212	mn_now = ev_rt_now;
1121	}	1213	}
1122		1214
1123	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1215	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1124	block = 0.;	1216	block = 0.;
1125	else	1217	else
…		…
1130	{	1222	{
1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1132	if (block > to) block = to;	1224	if (block > to) block = to;
1133	}	1225	}
1134		1226
		1227	#if EV_PERIODICS
1135	if (periodiccnt)	1228	if (periodiccnt)
1136	{	1229	{
1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1138	if (block > to) block = to;	1231	if (block > to) block = to;
1139	}	1232	}
		1233	#endif
1140		1234
1141	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
1142	}	1236	}
1143		1237
1144	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
1145		1239
1146	/* update rt_now, do magic */	1240	/* update ev_rt_now, do magic */
1147	time_update (EV_A);	1241	time_update (EV_A);
1148		1242
1149	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
1150	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
1151	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
1152		1248
1153	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
1154	if (idlecnt && !any_pending (EV_A))	1250	if (idlecnt && !any_pending (EV_A))
1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1156		1252
1157	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
1158	if (checkcnt)	1254	if (expect_false (checkcnt))
1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1160		1256
1161	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
1162	}	1261	}
1163	while (activecnt && !loop_done);
1164		1262
1165	if (loop_done != 2)	1263	if (loop_done != 2)
1166	loop_done = 0;	1264	loop_done = 0;
1167	}	1265	}
1168		1266
…		…
1228	void	1326	void
1229	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1230	{	1328	{
1231	int fd = w->fd;	1329	int fd = w->fd;
1232		1330
1233	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1234	return;	1332	return;
1235		1333
1236	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1237		1335
1238	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
…		…
1244		1342
1245	void	1343	void
1246	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1247	{	1345	{
1248	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1249	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1250	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1251		1351
1252	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1253	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1254		1354
1255	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1256	}	1356	}
1257		1357
1258	void	1358	void
1259	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1260	{	1360	{
1261	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1262	return;	1362	return;
1263		1363
1264	((WT)w)->at += mn_now;	1364	((WT)w)->at += mn_now;
1265		1365
1266	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1267		1367
1268	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1270	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1271	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
1272		1372
1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1274	}	1374	}
1275		1375
1276	void	1376	void
1277	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1278	{	1378	{
1279	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1280	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1281	return;	1381	return;
1282		1382
1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1284		1384
1285	if (((W)w)->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1286	{	1386	{
1287	timers [((W)w)->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1289	}	1389	}
1290		1390
1291	((WT)w)->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1292		1392
1293	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1294	}	1394	}
1295		1395
1296	void	1396	void
…		…
1299	if (ev_is_active (w))	1399	if (ev_is_active (w))
1300	{	1400	{
1301	if (w->repeat)	1401	if (w->repeat)
1302	{	1402	{
1303	((WT)w)->at = mn_now + w->repeat;	1403	((WT)w)->at = mn_now + w->repeat;
1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1305	}	1405	}
1306	else	1406	else
1307	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1308	}	1408	}
1309	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1310	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1311	}	1414	}
1312		1415
		1416	#if EV_PERIODICS
1313	void	1417	void
1314	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1315	{	1419	{
1316	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1317	return;	1421	return;
1318		1422
1319	if (w->reschedule_cb)	1423	if (w->reschedule_cb)
1320	((WT)w)->at = w->reschedule_cb (w, rt_now);	1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1321	else if (w->interval)	1425	else if (w->interval)
1322	{	1426	{
1323	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1427	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 */	1428	/* 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;	1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1326	}	1430	}
1327		1431
1328	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1330	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1331	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
1332		1436
1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1334	}	1438	}
1335		1439
1336	void	1440	void
1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1338	{	1442	{
1339	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1340	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1341	return;	1445	return;
1342		1446
1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1344		1448
1345	if (((W)w)->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1346	{	1450	{
1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1349	}	1453	}
1350		1454
1351	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1352	}	1456	}
1353		1457
1354	void	1458	void
1355	ev_periodic_again (EV_P_ struct ev_periodic *w)	1459	ev_periodic_again (EV_P_ struct ev_periodic *w)
1356	{	1460	{
		1461	/* TODO: use adjustheap and recalculation */
1357	ev_periodic_stop (EV_A_ w);	1462	ev_periodic_stop (EV_A_ w);
1358	ev_periodic_start (EV_A_ w);	1463	ev_periodic_start (EV_A_ w);
1359	}	1464	}
		1465	#endif
1360		1466
1361	void	1467	void
1362	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1363	{	1469	{
1364	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1365	return;	1471	return;
1366		1472
1367	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1369	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1370	}	1476	}
1371		1477
1372	void	1478	void
1373	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1374	{	1480	{
1375	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1376	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1377	return;	1483	return;
1378		1484
1379	idles [((W)w)->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1380	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1381	}	1487	}
1382		1488
1383	void	1489	void
1384	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1385	{	1491	{
1386	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1387	return;	1493	return;
1388		1494
1389	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1391	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1392	}	1498	}
1393		1499
1394	void	1500	void
1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1396	{	1502	{
1397	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1399	return;	1505	return;
1400		1506
1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1402	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1403	}	1509	}
1404		1510
1405	void	1511	void
1406	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1407	{	1513	{
1408	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1409	return;	1515	return;
1410		1516
1411	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1413	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1414	}	1520	}
1415		1521
1416	void	1522	void
1417	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1418	{	1524	{
1419	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1421	return;	1527	return;
1422		1528
1423	checks [((W)w)->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1424	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1425	}	1531	}
…		…
1430		1536
1431	void	1537	void
1432	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1433	{	1539	{
1434	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1435	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1436	#endif	1542	#endif
1437	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1438	return;	1544	return;
1439		1545
1440	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1441		1547
1442	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1445		1551
1446	if (!((WL)w)->next)	1552	if (!((WL)w)->next)
1447	{	1553	{
1448	#if WIN32	1554	#if _WIN32
1449	signal (w->signum, sighandler);	1555	signal (w->signum, sighandler);
1450	#else	1556	#else
1451	struct sigaction sa;	1557	struct sigaction sa;
1452	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1453	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
…		…
1459		1565
1460	void	1566	void
1461	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1462	{	1568	{
1463	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1464	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1465	return;	1571	return;
1466		1572
1467	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1468	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1469		1575
…		…
1473		1579
1474	void	1580	void
1475	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1476	{	1582	{
1477	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1478	assert (("child watchers are only supported in the default loop", loop == default_loop));	1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1479	#endif	1585	#endif
1480	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1481	return;	1587	return;
1482		1588
1483	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1485	}	1591	}
1486		1592
1487	void	1593	void
1488	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1489	{	1595	{
1490	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1491	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1492	return;	1598	return;
1493		1599
1494	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1495	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1496	}	1602	}
…		…
1533	void	1639	void
1534	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1640	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1535	{	1641	{
1536	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1642	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1537		1643
1538	if (!once)	1644	if (expect_false (!once))
		1645	{
1539	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1540	else	1647	return;
1541	{	1648	}
		1649
1542	once->cb = cb;	1650	once->cb = cb;
1543	once->arg = arg;	1651	once->arg = arg;
1544		1652
1545	ev_watcher_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1546	if (fd >= 0)	1654	if (fd >= 0)
1547	{	1655	{
1548	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1549	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1550	}	1658	}
1551		1659
1552	ev_watcher_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1553	if (timeout >= 0.)	1661	if (timeout >= 0.)
1554	{	1662	{
1555	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1556	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1557	}
1558	}	1665	}
1559	}	1666	}
1560		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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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 1.123 by root, Sat Nov 17 02:23:54 2007 UTC

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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 1.123 by root, Sat Nov 17 02:23:54 2007 UTC