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

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 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
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
…		…
66	#include <sys/types.h>	106	#include <sys/types.h>
67	#include <time.h>	107	#include <time.h>
68		108
69	#include <signal.h>	109	#include <signal.h>
70		110
71	#ifndef WIN32	111	#ifndef _WIN32
72	# include <unistd.h>	112	# include <unistd.h>
73	# include <sys/time.h>	113	# include <sys/time.h>
74	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	120	# endif
		121	#endif
		122
76	/**/	123	/**/
77		124
78	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
80	#endif	131	#endif
81		132
82	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
84	#endif	135	#endif
85		136
86	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
88	#endif	143	#endif
89		144
90	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
92	#endif	147	#endif
93		148
94	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
96	#endif	151	#endif
97		152
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	153	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
110	#endif	155	#endif
111		156
112	/**/	157	/**/
		158
		159	/* darwin simply cannot be helped */
		160	#ifdef __APPLE__
		161	# undef EV_USE_POLL
		162	# undef EV_USE_KQUEUE
		163	#endif
113		164
114	#ifndef CLOCK_MONOTONIC	165	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	166	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	167	# define EV_USE_MONOTONIC 0
117	#endif	168	#endif
…		…
119	#ifndef CLOCK_REALTIME	170	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	171	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	172	# define EV_USE_REALTIME 0
122	#endif	173	#endif
123		174
		175	#if EV_SELECT_IS_WINSOCKET
		176	# include <winsock.h>
		177	#endif
		178
124	/**/	179	/**/
125		180
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	181	#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) */	182	#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 */	183	#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 */	184	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		185
131	#ifdef EV_H	186	#ifdef EV_H
132	# include EV_H	187	# include EV_H
133	#else	188	#else
134	# include "ev.h"	189	# include "ev.h"
135	#endif	190	#endif
136		191
137	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	194	# define inline static inline
140	#else	195	#else
141	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
142	# define inline static	197	# define inline static
143	#endif	198	#endif
144		199
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
147		202
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
151	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
154		212
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		214
		215	#ifdef _WIN32
157	#include "ev_win32.c"	216	# include "ev_win32.c"
		217	#endif
158		218
159	/*****************************************************************************/	219	/*****************************************************************************/
160		220
161	static void (syserr_cb)(const char msg);	221	static void (syserr_cb)(const char msg);
162		222
…		…
209	typedef struct	269	typedef struct
210	{	270	{
211	WL head;	271	WL head;
212	unsigned char events;	272	unsigned char events;
213	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
214	} ANFD;	277	} ANFD;
215		278
216	typedef struct	279	typedef struct
217	{	280	{
218	W w;	281	W w;
…		…
221		284
222	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
223		286
224	struct ev_loop	287	struct ev_loop
225	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	292	#include "ev_vars.h"
228	#undef VAR	293	#undef VAR
229	};	294	};
230	#include "ev_wrap.h"	295	#include "ev_wrap.h"
231		296
232	struct ev_loop default_loop_struct;	297	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	298	struct ev_loop *ev_default_loop_ptr;
234		299
235	#else	300	#else
236		301
		302	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	304	#include "ev_vars.h"
239	#undef VAR	305	#undef VAR
240		306
241	static int default_loop;	307	static int ev_default_loop_ptr;
242		308
243	#endif	309	#endif
244		310
245	/*****************************************************************************/	311	/*****************************************************************************/
246		312
247	inline ev_tstamp	313	ev_tstamp
248	ev_time (void)	314	ev_time (void)
249	{	315	{
250	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
251	struct timespec ts;	317	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
279	{	345	{
280	return ev_rt_now;	346	return ev_rt_now;
281	}	347	}
282	#endif	348	#endif
283		349
284	#define array_roundsize(type,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
285		351
286	#define array_needsize(type,base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
287	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
288	{ \	354	{ \
289	int newcnt = cur; \	355	int newcnt = cur; \
…		…
304	stem ## max = array_roundsize (stem ## cnt >> 1); \	370	stem ## max = array_roundsize (stem ## cnt >> 1); \
305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
307	}	373	}
308		374
309	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
310	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
311	#define array_free_microshit(stem) \
312	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
313
314	#define array_free(stem, idx) \	375	#define array_free(stem, idx) \
315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	376	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
316		377
317	/*****************************************************************************/	378	/*****************************************************************************/
318		379
…		…
332	void	393	void
333	ev_feed_event (EV_P_ void *w, int revents)	394	ev_feed_event (EV_P_ void *w, int revents)
334	{	395	{
335	W w_ = (W)w;	396	W w_ = (W)w;
336		397
337	if (w_->pending)	398	if (expect_false (w_->pending))
338	{	399	{
339	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
340	return;	401	return;
341	}	402	}
342		403
343	w_->pending = ++pendingcnt [ABSPRI (w_)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
344	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	405	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
345	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
346	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
347	}	408	}
348		409
349	static void	410	static void
…		…
376	fd_event (EV_A_ fd, revents);	437	fd_event (EV_A_ fd, revents);
377	}	438	}
378		439
379	/*****************************************************************************/	440	/*****************************************************************************/
380		441
381	static void	442	inline void
382	fd_reify (EV_P)	443	fd_reify (EV_P)
383	{	444	{
384	int i;	445	int i;
385		446
386	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
392	int events = 0;	453	int events = 0;
393		454
394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	455	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
395	events \|= w->events;	456	events \|= w->events;
396		457
		458	#if EV_SELECT_IS_WINSOCKET
		459	if (events)
		460	{
		461	unsigned long argp;
		462	anfd->handle = _get_osfhandle (fd);
		463	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		464	}
		465	#endif
		466
397	anfd->reify = 0;	467	anfd->reify = 0;
398		468
399	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
400	anfd->events = events;	470	anfd->events = events;
401	}	471	}
…		…
404	}	474	}
405		475
406	static void	476	static void
407	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
408	{	478	{
409	if (anfds [fd].reify)	479	if (expect_false (anfds [fd].reify))
410	return;	480	return;
411		481
412	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
413		483
414	++fdchangecnt;	484	++fdchangecnt;
415	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
416	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
417	}	487	}
418		488
419	static void	489	static void
420	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
426	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
427	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	497	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
428	}	498	}
429	}	499	}
430		500
431	static int	501	inline int
432	fd_valid (int fd)	502	fd_valid (int fd)
433	{	503	{
434	#ifdef WIN32	504	#ifdef _WIN32
435	return !!win32_get_osfhandle (fd);	505	return _get_osfhandle (fd) != -1;
436	#else	506	#else
437	return fcntl (fd, F_GETFD) != -1;	507	return fcntl (fd, F_GETFD) != -1;
438	#endif	508	#endif
439	}	509	}
440		510
…		…
521	heap [k] = w;	591	heap [k] = w;
522	((W)heap [k])->active = k + 1;	592	((W)heap [k])->active = k + 1;
523	}	593	}
524		594
525	inline void	595	inline void
526	adjustheap (WT *heap, int N, int k, ev_tstamp at)	596	adjustheap (WT *heap, int N, int k)
527	{	597	{
528	ev_tstamp old_at = heap [k]->at;	598	upheap (heap, k);
529	heap [k]->at = at;
530
531	if (old_at < at)
532	downheap (heap, N, k);	599	downheap (heap, N, k);
533	else
534	upheap (heap, k);
535	}	600	}
536		601
537	/*****************************************************************************/	602	/*****************************************************************************/
538		603
539	typedef struct	604	typedef struct
…		…
562	}	627	}
563		628
564	static void	629	static void
565	sighandler (int signum)	630	sighandler (int signum)
566	{	631	{
567	#if WIN32	632	#if _WIN32
568	signal (signum, sighandler);	633	signal (signum, sighandler);
569	#endif	634	#endif
570		635
571	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
572		637
573	if (!gotsig)	638	if (!gotsig)
574	{	639	{
575	int old_errno = errno;	640	int old_errno = errno;
576	gotsig = 1;	641	gotsig = 1;
577	#ifdef WIN32
578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579	#else
580	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
581	#endif
582	errno = old_errno;	643	errno = old_errno;
583	}	644	}
584	}	645	}
585		646
586	void	647	void
587	ev_feed_signal_event (EV_P_ int signum)	648	ev_feed_signal_event (EV_P_ int signum)
588	{	649	{
589	WL w;	650	WL w;
590		651
591	#if EV_MULTIPLICITY	652	#if EV_MULTIPLICITY
592	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	653	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
593	#endif	654	#endif
594		655
595	--signum;	656	--signum;
596		657
597	if (signum < 0 \|\| signum >= signalmax)	658	if (signum < 0 \|\| signum >= signalmax)
…		…
606	static void	667	static void
607	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
608	{	669	{
609	int signum;	670	int signum;
610		671
611	#ifdef WIN32
612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613	#else
614	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
615	#endif
616	gotsig = 0;	673	gotsig = 0;
617		674
618	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
619	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
620	ev_feed_signal_event (EV_A_ signum + 1);	677	ev_feed_signal_event (EV_A_ signum + 1);
621	}	678	}
622		679
623	static void	680	static void
		681	fd_intern (int fd)
		682	{
		683	#ifdef _WIN32
		684	int arg = 1;
		685	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		686	#else
		687	fcntl (fd, F_SETFD, FD_CLOEXEC);
		688	fcntl (fd, F_SETFL, O_NONBLOCK);
		689	#endif
		690	}
		691
		692	static void
624	siginit (EV_P)	693	siginit (EV_P)
625	{	694	{
626	#ifndef WIN32	695	fd_intern (sigpipe [0]);
627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
628	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
629
630	/* rather than sort out wether we really need nb, set it */
631	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
632	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
633	#endif
634		697
635	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
636	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
637	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
638	}	701	}
639		702
640	/*****************************************************************************/	703	/*****************************************************************************/
641		704
642	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
643		706
644	#ifndef WIN32	707	#ifndef _WIN32
645		708
646	static struct ev_signal childev;	709	static struct ev_signal childev;
647		710
648	#ifndef WCONTINUED	711	#ifndef WCONTINUED
649	# define WCONTINUED 0	712	# define WCONTINUED 0
…		…
681		744
682	#endif	745	#endif
683		746
684	/*****************************************************************************/	747	/*****************************************************************************/
685		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
686	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
687	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
688	#endif	754	#endif
689	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
690	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
710		776
711	/* return true if we are running with elevated privileges and should ignore env variables */	777	/* return true if we are running with elevated privileges and should ignore env variables */
712	static int	778	static int
713	enable_secure (void)	779	enable_secure (void)
714	{	780	{
715	#ifdef WIN32	781	#ifdef _WIN32
716	return 0;	782	return 0;
717	#else	783	#else
718	return getuid () != geteuid ()	784	return getuid () != geteuid ()
719	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
720	#endif	786	#endif
721	}	787	}
722		788
723	int	789	unsigned int
724	ev_method (EV_P)	790	ev_method (EV_P)
725	{	791	{
726	return method;	792	return method;
727	}	793	}
728		794
729	static void	795	static void
730	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
731	{	797	{
732	if (!method)	798	if (!method)
733	{	799	{
734	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
735	{	801	{
…		…
742	ev_rt_now = ev_time ();	808	ev_rt_now = ev_time ();
743	mn_now = get_clock ();	809	mn_now = get_clock ();
744	now_floor = mn_now;	810	now_floor = mn_now;
745	rtmn_diff = ev_rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
746		812
747	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
748	if (!enable_secure () && getenv ("LIBEV_METHODS"))
749	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
750	else	815
751	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
752		818
753	method = 0;	819	method = 0;
754	#if EV_USE_WIN32	820	#if EV_USE_PORT
755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
756	#endif	822	#endif
757	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
759	#endif	825	#endif
760	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
762	#endif	828	#endif
763	#if EV_USE_POLL	829	#if EV_USE_POLL
764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
765	#endif	831	#endif
766	#if EV_USE_SELECT	832	#if EV_USE_SELECT
767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
768	#endif	834	#endif
769		835
770	ev_init (&sigev, sigcb);	836	ev_init (&sigev, sigcb);
771	ev_set_priority (&sigev, EV_MAXPRI);	837	ev_set_priority (&sigev, EV_MAXPRI);
772	}	838	}
773	}	839	}
774		840
775	void	841	static void
776	loop_destroy (EV_P)	842	loop_destroy (EV_P)
777	{	843	{
778	int i;	844	int i;
779		845
780	#if EV_USE_WIN32	846	#if EV_USE_PORT
781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
782	#endif	848	#endif
783	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
785	#endif	851	#endif
786	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
…		…
795		861
796	for (i = NUMPRI; i--; )	862	for (i = NUMPRI; i--; )
797	array_free (pending, [i]);	863	array_free (pending, [i]);
798		864
799	/* have to use the microsoft-never-gets-it-right macro */	865	/* have to use the microsoft-never-gets-it-right macro */
800	array_free_microshit (fdchange);	866	array_free (fdchange, EMPTY0);
801	array_free_microshit (timer);	867	array_free (timer, EMPTY0);
802	array_free_microshit (periodic);	868	#if EV_PERIODICS
803	array_free_microshit (idle);	869	array_free (periodic, EMPTY0);
804	array_free_microshit (prepare);	870	#endif
805	array_free_microshit (check);	871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
806		874
807	method = 0;	875	method = 0;
808	}	876	}
809		877
810	static void	878	static void
811	loop_fork (EV_P)	879	loop_fork (EV_P)
812	{	880	{
		881	#if EV_USE_PORT
		882	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		883	#endif
		884	#if EV_USE_KQUEUE
		885	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		886	#endif
813	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
814	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
815	#endif
816	#if EV_USE_KQUEUE
817	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
818	#endif	889	#endif
819		890
820	if (ev_is_active (&sigev))	891	if (ev_is_active (&sigev))
821	{	892	{
822	/* default loop */	893	/* default loop */
…		…
835	postfork = 0;	906	postfork = 0;
836	}	907	}
837		908
838	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
839	struct ev_loop *	910	struct ev_loop *
840	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
841	{	912	{
842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	913	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
843		914
844	memset (loop, 0, sizeof (struct ev_loop));	915	memset (loop, 0, sizeof (struct ev_loop));
845		916
846	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
847		918
848	if (ev_method (EV_A))	919	if (ev_method (EV_A))
849	return loop;	920	return loop;
850		921
851	return 0;	922	return 0;
…		…
866		937
867	#endif	938	#endif
868		939
869	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
870	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
871	#else	943	#else
872	int	944	int
		945	ev_default_loop (unsigned int flags)
873	#endif	946	#endif
874	ev_default_loop (int methods)
875	{	947	{
876	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
877	if (pipe (sigpipe))	949	if (pipe (sigpipe))
878	return 0;	950	return 0;
879		951
880	if (!default_loop)	952	if (!ev_default_loop_ptr)
881	{	953	{
882	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
883	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
884	#else	956	#else
885	default_loop = 1;	957	ev_default_loop_ptr = 1;
886	#endif	958	#endif
887		959
888	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
889		961
890	if (ev_method (EV_A))	962	if (ev_method (EV_A))
891	{	963	{
892	siginit (EV_A);	964	siginit (EV_A);
893		965
894	#ifndef WIN32	966	#ifndef _WIN32
895	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
896	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
897	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
898	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
899	#endif	971	#endif
900	}	972	}
901	else	973	else
902	default_loop = 0;	974	ev_default_loop_ptr = 0;
903	}	975	}
904		976
905	return default_loop;	977	return ev_default_loop_ptr;
906	}	978	}
907		979
908	void	980	void
909	ev_default_destroy (void)	981	ev_default_destroy (void)
910	{	982	{
911	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
912	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
913	#endif	985	#endif
914		986
915	#ifndef WIN32	987	#ifndef _WIN32
916	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
917	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
918	#endif	990	#endif
919		991
920	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
…		…
928		1000
929	void	1001	void
930	ev_default_fork (void)	1002	ev_default_fork (void)
931	{	1003	{
932	#if EV_MULTIPLICITY	1004	#if EV_MULTIPLICITY
933	struct ev_loop *loop = default_loop;	1005	struct ev_loop *loop = ev_default_loop_ptr;
934	#endif	1006	#endif
935		1007
936	if (method)	1008	if (method)
937	postfork = 1;	1009	postfork = 1;
938	}	1010	}
…		…
949	return 1;	1021	return 1;
950		1022
951	return 0;	1023	return 0;
952	}	1024	}
953		1025
954	static void	1026	inline void
955	call_pending (EV_P)	1027	call_pending (EV_P)
956	{	1028	{
957	int pri;	1029	int pri;
958		1030
959	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
960	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
961	{	1033	{
962	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
963		1035
964	if (p->w)	1036	if (expect_true (p->w))
965	{	1037	{
966	p->w->pending = 0;	1038	p->w->pending = 0;
967	EV_CB_INVOKE (p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
968	}	1040	}
969	}	1041	}
970	}	1042	}
971		1043
972	static void	1044	inline void
973	timers_reify (EV_P)	1045	timers_reify (EV_P)
974	{	1046	{
975	while (timercnt && ((WT)timers [0])->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
976	{	1048	{
977	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
…		…
980		1052
981	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
982	if (w->repeat)	1054	if (w->repeat)
983	{	1055	{
984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1056	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1057
985	((WT)w)->at = mn_now + w->repeat;	1058	((WT)w)->at += w->repeat;
		1059	if (((WT)w)->at < mn_now)
		1060	((WT)w)->at = mn_now;
		1061
986	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
987	}	1063	}
988	else	1064	else
989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990		1066
991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992	}	1068	}
993	}	1069	}
994		1070
995	static void	1071	#if EV_PERIODICS
		1072	inline void
996	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
997	{	1074	{
998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999	{	1076	{
1000	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
…		…
1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1003		1080
1004	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
1005	if (w->reschedule_cb)	1082	if (w->reschedule_cb)
1006	{	1083	{
1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1084	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1008
1009	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1085	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010	downheap ((WT *)periodics, periodiccnt, 0);	1086	downheap ((WT *)periodics, periodiccnt, 0);
1011	}	1087	}
1012	else if (w->interval)	1088	else if (w->interval)
1013	{	1089	{
…		…
1040		1116
1041	/* now rebuild the heap */	1117	/* now rebuild the heap */
1042	for (i = periodiccnt >> 1; i--; )	1118	for (i = periodiccnt >> 1; i--; )
1043	downheap ((WT *)periodics, periodiccnt, i);	1119	downheap ((WT *)periodics, periodiccnt, i);
1044	}	1120	}
		1121	#endif
1045		1122
1046	inline int	1123	inline int
1047	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
1048	{	1125	{
1049	mn_now = get_clock ();	1126	mn_now = get_clock ();
…		…
1059	ev_rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
1060	return 1;	1137	return 1;
1061	}	1138	}
1062	}	1139	}
1063		1140
1064	static void	1141	inline void
1065	time_update (EV_P)	1142	time_update (EV_P)
1066	{	1143	{
1067	int i;	1144	int i;
1068		1145
1069	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
1083	ev_rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
1084	mn_now = get_clock ();	1161	mn_now = get_clock ();
1085	now_floor = mn_now;	1162	now_floor = mn_now;
1086	}	1163	}
1087		1164
		1165	# if EV_PERIODICS
1088	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
1089	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091	}	1170	}
1092	}	1171	}
1093	else	1172	else
…		…
1095	{	1174	{
1096	ev_rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
1097		1176
1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1177	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099	{	1178	{
		1179	#if EV_PERIODICS
1100	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
1101		1182
1102	/* adjust timers. this is easy, as the offset is the same for all */	1183	/* adjust timers. this is easy, as the offset is the same for all */
1103	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
1104	((WT)timers [i])->at += ev_rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
1105	}	1186	}
…		…
1126	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
1127	{	1208	{
1128	double block;	1209	double block;
1129	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1130		1211
1131	do	1212	while (activecnt)
1132	{	1213	{
1133	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
1134	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
1135	{	1216	{
1136	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1168	{	1249	{
1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1170	if (block > to) block = to;	1251	if (block > to) block = to;
1171	}	1252	}
1172		1253
		1254	#if EV_PERIODICS
1173	if (periodiccnt)	1255	if (periodiccnt)
1174	{	1256	{
1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1176	if (block > to) block = to;	1258	if (block > to) block = to;
1177	}	1259	}
		1260	#endif
1178		1261
1179	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
1180	}	1263	}
1181		1264
1182	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
1183		1266
1184	/* update ev_rt_now, do magic */	1267	/* update ev_rt_now, do magic */
1185	time_update (EV_A);	1268	time_update (EV_A);
1186		1269
1187	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
1188	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
1189	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
1190		1275
1191	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
1192	if (idlecnt && !any_pending (EV_A))	1277	if (idlecnt && !any_pending (EV_A))
1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1194		1279
1195	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
1196	if (checkcnt)	1281	if (expect_false (checkcnt))
1197	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1198		1283
1199	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
1200	}	1288	}
1201	while (activecnt && !loop_done);
1202		1289
1203	if (loop_done != 2)	1290	if (loop_done != 2)
1204	loop_done = 0;	1291	loop_done = 0;
1205	}	1292	}
1206		1293
…		…
1266	void	1353	void
1267	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1268	{	1355	{
1269	int fd = w->fd;	1356	int fd = w->fd;
1270		1357
1271	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1272	return;	1359	return;
1273		1360
1274	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1275		1362
1276	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
…		…
1282		1369
1283	void	1370	void
1284	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1285	{	1372	{
1286	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1287	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1288	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1289		1378
1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1292		1381
1293	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1294	}	1383	}
1295		1384
1296	void	1385	void
1297	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1298	{	1387	{
1299	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1300	return;	1389	return;
1301		1390
1302	((WT)w)->at += mn_now;	1391	((WT)w)->at += mn_now;
1303		1392
1304	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1393	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1305		1394
1306	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1307	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1308	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1309	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
1310		1399
1311	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1312	}	1401	}
1313		1402
1314	void	1403	void
1315	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1316	{	1405	{
1317	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1318	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1319	return;	1408	return;
1320		1409
1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1322		1411
1323	if (((W)w)->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1324	{	1413	{
1325	timers [((W)w)->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1327	}	1416	}
1328		1417
1329	((WT)w)->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1330		1419
1331	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1332	}	1421	}
1333		1422
1334	void	1423	void
1335	ev_timer_again (EV_P_ struct ev_timer *w)	1424	ev_timer_again (EV_P_ struct ev_timer *w)
1336	{	1425	{
1337	if (ev_is_active (w))	1426	if (ev_is_active (w))
1338	{	1427	{
1339	if (w->repeat)	1428	if (w->repeat)
		1429	{
		1430	((WT)w)->at = mn_now + w->repeat;
1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1432	}
1341	else	1433	else
1342	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1343	}	1435	}
1344	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1345	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1346	}	1441	}
1347		1442
		1443	#if EV_PERIODICS
1348	void	1444	void
1349	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1350	{	1446	{
1351	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1352	return;	1448	return;
1353		1449
1354	if (w->reschedule_cb)	1450	if (w->reschedule_cb)
1355	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1356	else if (w->interval)	1452	else if (w->interval)
…		…
1359	/* this formula differs from the one in periodic_reify because we do not always round up */	1455	/* this formula differs from the one in periodic_reify because we do not always round up */
1360	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1456	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1361	}	1457	}
1362		1458
1363	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1364	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1365	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1366	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
1367		1463
1368	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1369	}	1465	}
1370		1466
1371	void	1467	void
1372	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1373	{	1469	{
1374	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1375	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1376	return;	1472	return;
1377		1473
1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1379		1475
1380	if (((W)w)->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1381	{	1477	{
1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1384	}	1480	}
1385		1481
1386	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1387	}	1483	}
1388		1484
…		…
1391	{	1487	{
1392	/* TODO: use adjustheap and recalculation */	1488	/* TODO: use adjustheap and recalculation */
1393	ev_periodic_stop (EV_A_ w);	1489	ev_periodic_stop (EV_A_ w);
1394	ev_periodic_start (EV_A_ w);	1490	ev_periodic_start (EV_A_ w);
1395	}	1491	}
		1492	#endif
1396		1493
1397	void	1494	void
1398	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1399	{	1496	{
1400	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1401	return;	1498	return;
1402		1499
1403	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1404	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1405	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1406	}	1503	}
1407		1504
1408	void	1505	void
1409	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1410	{	1507	{
1411	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1412	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1413	return;	1510	return;
1414		1511
1415	idles [((W)w)->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1416	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1417	}	1514	}
1418		1515
1419	void	1516	void
1420	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1421	{	1518	{
1422	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1423	return;	1520	return;
1424		1521
1425	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1426	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1427	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1428	}	1525	}
1429		1526
1430	void	1527	void
1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432	{	1529	{
1433	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1434	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1435	return;	1532	return;
1436		1533
1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1439	}	1536	}
1440		1537
1441	void	1538	void
1442	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1443	{	1540	{
1444	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1445	return;	1542	return;
1446		1543
1447	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1448	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1449	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1450	}	1547	}
1451		1548
1452	void	1549	void
1453	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1454	{	1551	{
1455	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1457	return;	1554	return;
1458		1555
1459	checks [((W)w)->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1460	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1461	}	1558	}
…		…
1466		1563
1467	void	1564	void
1468	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1469	{	1566	{
1470	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1471	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1568	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1472	#endif	1569	#endif
1473	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1474	return;	1571	return;
1475		1572
1476	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1573	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1477		1574
1478	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481		1578
1482	if (!((WL)w)->next)	1579	if (!((WL)w)->next)
1483	{	1580	{
1484	#if WIN32	1581	#if _WIN32
1485	signal (w->signum, sighandler);	1582	signal (w->signum, sighandler);
1486	#else	1583	#else
1487	struct sigaction sa;	1584	struct sigaction sa;
1488	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1489	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
…		…
1495		1592
1496	void	1593	void
1497	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1498	{	1595	{
1499	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1500	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1501	return;	1598	return;
1502		1599
1503	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1504	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1505		1602
…		…
1509		1606
1510	void	1607	void
1511	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1512	{	1609	{
1513	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1514	assert (("child watchers are only supported in the default loop", loop == default_loop));	1611	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1515	#endif	1612	#endif
1516	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1517	return;	1614	return;
1518		1615
1519	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1520	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1521	}	1618	}
1522		1619
1523	void	1620	void
1524	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1525	{	1622	{
1526	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1527	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1528	return;	1625	return;
1529		1626
1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1531	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1532	}	1629	}
…		…
1569	void	1666	void
1570	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1667	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1571	{	1668	{
1572	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1669	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1573		1670
1574	if (!once)	1671	if (expect_false (!once))
		1672	{
1575	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1576	else	1674	return;
1577	{	1675	}
		1676
1578	once->cb = cb;	1677	once->cb = cb;
1579	once->arg = arg;	1678	once->arg = arg;
1580		1679
1581	ev_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1582	if (fd >= 0)	1681	if (fd >= 0)
1583	{	1682	{
1584	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1585	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1586	}	1685	}
1587		1686
1588	ev_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1589	if (timeout >= 0.)	1688	if (timeout >= 0.)
1590	{	1689	{
1591	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1592	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1593	}
1594	}	1692	}
1595	}	1693	}
1596		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs. Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC