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

Comparing libev/ev.c (file contents):
Revision 1.83 by root, Fri Nov 9 21:48:23 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);
…		…
271	#endif	337	#endif
272		338
273	return ev_time ();	339	return ev_time ();
274	}	340	}
275		341
		342	#if EV_MULTIPLICITY
276	ev_tstamp	343	ev_tstamp
277	ev_now (EV_P)	344	ev_now (EV_P)
278	{	345	{
279	return rt_now;	346	return ev_rt_now;
280	}	347	}
		348	#endif
281		349
282	#define array_roundsize(type,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
283		351
284	#define array_needsize(type,base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
286	{ \	354	{ \
287	int newcnt = cur; \	355	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	370	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
305	}	373	}
306		374
307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
309	#define array_free_microshit(stem) \
310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
311
312	#define array_free(stem, idx) \	375	#define array_free(stem, idx) \
313	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;
314		377
315	/*****************************************************************************/	378	/*****************************************************************************/
316		379
…		…
330	void	393	void
331	ev_feed_event (EV_P_ void *w, int revents)	394	ev_feed_event (EV_P_ void *w, int revents)
332	{	395	{
333	W w_ = (W)w;	396	W w_ = (W)w;
334		397
335	if (w_->pending)	398	if (expect_false (w_->pending))
336	{	399	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
338	return;	401	return;
339	}	402	}
340		403
341	w_->pending = ++pendingcnt [ABSPRI (w_)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	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);
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}	408	}
346		409
347	static void	410	static void
…		…
374	fd_event (EV_A_ fd, revents);	437	fd_event (EV_A_ fd, revents);
375	}	438	}
376		439
377	/*****************************************************************************/	440	/*****************************************************************************/
378		441
379	static void	442	inline void
380	fd_reify (EV_P)	443	fd_reify (EV_P)
381	{	444	{
382	int i;	445	int i;
383		446
384	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
390	int events = 0;	453	int events = 0;
391		454
392	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)
393	events \|= w->events;	456	events \|= w->events;
394		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
395	anfd->reify = 0;	467	anfd->reify = 0;
396		468
397	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	470	anfd->events = events;
399	}	471	}
…		…
402	}	474	}
403		475
404	static void	476	static void
405	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
406	{	478	{
407	if (anfds [fd].reify)	479	if (expect_false (anfds [fd].reify))
408	return;	480	return;
409		481
410	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
411		483
412	++fdchangecnt;	484	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
415	}	487	}
416		488
417	static void	489	static void
418	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
424	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
425	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);
426	}	498	}
427	}	499	}
428		500
429	static int	501	inline int
430	fd_valid (int fd)	502	fd_valid (int fd)
431	{	503	{
432	#ifdef WIN32	504	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	505	return _get_osfhandle (fd) != -1;
434	#else	506	#else
435	return fcntl (fd, F_GETFD) != -1;	507	return fcntl (fd, F_GETFD) != -1;
436	#endif	508	#endif
437	}	509	}
438		510
…		…
518		590
519	heap [k] = w;	591	heap [k] = w;
520	((W)heap [k])->active = k + 1;	592	((W)heap [k])->active = k + 1;
521	}	593	}
522		594
		595	inline void
		596	adjustheap (WT *heap, int N, int k)
		597	{
		598	upheap (heap, k);
		599	downheap (heap, N, k);
		600	}
		601
523	/*****************************************************************************/	602	/*****************************************************************************/
524		603
525	typedef struct	604	typedef struct
526	{	605	{
527	WL head;	606	WL head;
…		…
548	}	627	}
549		628
550	static void	629	static void
551	sighandler (int signum)	630	sighandler (int signum)
552	{	631	{
553	#if WIN32	632	#if _WIN32
554	signal (signum, sighandler);	633	signal (signum, sighandler);
555	#endif	634	#endif
556		635
557	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
558		637
559	if (!gotsig)	638	if (!gotsig)
560	{	639	{
561	int old_errno = errno;	640	int old_errno = errno;
562	gotsig = 1;	641	gotsig = 1;
563	#ifdef WIN32
564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565	#else
566	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
567	#endif
568	errno = old_errno;	643	errno = old_errno;
569	}	644	}
570	}	645	}
571		646
572	void	647	void
573	ev_feed_signal_event (EV_P_ int signum)	648	ev_feed_signal_event (EV_P_ int signum)
574	{	649	{
575	WL w;	650	WL w;
576		651
577	#if EV_MULTIPLICITY	652	#if EV_MULTIPLICITY
578	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));
579	#endif	654	#endif
580		655
581	--signum;	656	--signum;
582		657
583	if (signum < 0 \|\| signum >= signalmax)	658	if (signum < 0 \|\| signum >= signalmax)
…		…
592	static void	667	static void
593	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
594	{	669	{
595	int signum;	670	int signum;
596		671
597	#ifdef WIN32
598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599	#else
600	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
601	#endif
602	gotsig = 0;	673	gotsig = 0;
603		674
604	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
605	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
606	ev_feed_signal_event (EV_A_ signum + 1);	677	ev_feed_signal_event (EV_A_ signum + 1);
607	}	678	}
608		679
609	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
610	siginit (EV_P)	693	siginit (EV_P)
611	{	694	{
612	#ifndef WIN32	695	fd_intern (sigpipe [0]);
613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
615
616	/* rather than sort out wether we really need nb, set it */
617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
619	#endif
620		697
621	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
622	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
623	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
624	}	701	}
625		702
626	/*****************************************************************************/	703	/*****************************************************************************/
627		704
628	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
629		706
630	#ifndef WIN32	707	#ifndef _WIN32
631		708
632	static struct ev_signal childev;	709	static struct ev_signal childev;
633		710
634	#ifndef WCONTINUED	711	#ifndef WCONTINUED
635	# define WCONTINUED 0	712	# define WCONTINUED 0
…		…
667		744
668	#endif	745	#endif
669		746
670	/*****************************************************************************/	747	/*****************************************************************************/
671		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
672	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
673	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
674	#endif	754	#endif
675	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
676	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
696		776
697	/* 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 */
698	static int	778	static int
699	enable_secure (void)	779	enable_secure (void)
700	{	780	{
701	#ifdef WIN32	781	#ifdef _WIN32
702	return 0;	782	return 0;
703	#else	783	#else
704	return getuid () != geteuid ()	784	return getuid () != geteuid ()
705	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
706	#endif	786	#endif
707	}	787	}
708		788
709	int	789	unsigned int
710	ev_method (EV_P)	790	ev_method (EV_P)
711	{	791	{
712	return method;	792	return method;
713	}	793	}
714		794
715	static void	795	static void
716	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
717	{	797	{
718	if (!method)	798	if (!method)
719	{	799	{
720	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
721	{	801	{
…		…
723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724	have_monotonic = 1;	804	have_monotonic = 1;
725	}	805	}
726	#endif	806	#endif
727		807
728	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
729	mn_now = get_clock ();	809	mn_now = get_clock ();
730	now_floor = mn_now;	810	now_floor = mn_now;
731	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
732		812
733	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
734	if (!enable_secure () && getenv ("LIBEV_METHODS"))
735	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
736	else	815
737	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
738		818
739	method = 0;	819	method = 0;
740	#if EV_USE_WIN32	820	#if EV_USE_PORT
741	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
742	#endif	822	#endif
743	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
745	#endif	825	#endif
746	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
748	#endif	828	#endif
749	#if EV_USE_POLL	829	#if EV_USE_POLL
750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
751	#endif	831	#endif
752	#if EV_USE_SELECT	832	#if EV_USE_SELECT
753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
754	#endif	834	#endif
755		835
756	ev_init (&sigev, sigcb);	836	ev_init (&sigev, sigcb);
757	ev_set_priority (&sigev, EV_MAXPRI);	837	ev_set_priority (&sigev, EV_MAXPRI);
758	}	838	}
759	}	839	}
760		840
761	void	841	static void
762	loop_destroy (EV_P)	842	loop_destroy (EV_P)
763	{	843	{
764	int i;	844	int i;
765		845
766	#if EV_USE_WIN32	846	#if EV_USE_PORT
767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
768	#endif	848	#endif
769	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
771	#endif	851	#endif
772	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
…		…
781		861
782	for (i = NUMPRI; i--; )	862	for (i = NUMPRI; i--; )
783	array_free (pending, [i]);	863	array_free (pending, [i]);
784		864
785	/* have to use the microsoft-never-gets-it-right macro */	865	/* have to use the microsoft-never-gets-it-right macro */
786	array_free_microshit (fdchange);	866	array_free (fdchange, EMPTY0);
787	array_free_microshit (timer);	867	array_free (timer, EMPTY0);
788	array_free_microshit (periodic);	868	#if EV_PERIODICS
789	array_free_microshit (idle);	869	array_free (periodic, EMPTY0);
790	array_free_microshit (prepare);	870	#endif
791	array_free_microshit (check);	871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
792		874
793	method = 0;	875	method = 0;
794	}	876	}
795		877
796	static void	878	static void
797	loop_fork (EV_P)	879	loop_fork (EV_P)
798	{	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
799	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
801	#endif
802	#if EV_USE_KQUEUE
803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
804	#endif	889	#endif
805		890
806	if (ev_is_active (&sigev))	891	if (ev_is_active (&sigev))
807	{	892	{
808	/* default loop */	893	/* default loop */
…		…
821	postfork = 0;	906	postfork = 0;
822	}	907	}
823		908
824	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
825	struct ev_loop *	910	struct ev_loop *
826	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
827	{	912	{
828	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));
829		914
830	memset (loop, 0, sizeof (struct ev_loop));	915	memset (loop, 0, sizeof (struct ev_loop));
831		916
832	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
833		918
834	if (ev_method (EV_A))	919	if (ev_method (EV_A))
835	return loop;	920	return loop;
836		921
837	return 0;	922	return 0;
…		…
852		937
853	#endif	938	#endif
854		939
855	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
856	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
857	#else	943	#else
858	int	944	int
		945	ev_default_loop (unsigned int flags)
859	#endif	946	#endif
860	ev_default_loop (int methods)
861	{	947	{
862	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
863	if (pipe (sigpipe))	949	if (pipe (sigpipe))
864	return 0;	950	return 0;
865		951
866	if (!default_loop)	952	if (!ev_default_loop_ptr)
867	{	953	{
868	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
869	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870	#else	956	#else
871	default_loop = 1;	957	ev_default_loop_ptr = 1;
872	#endif	958	#endif
873		959
874	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
875		961
876	if (ev_method (EV_A))	962	if (ev_method (EV_A))
877	{	963	{
878	siginit (EV_A);	964	siginit (EV_A);
879		965
880	#ifndef WIN32	966	#ifndef _WIN32
881	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
882	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
883	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
884	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
885	#endif	971	#endif
886	}	972	}
887	else	973	else
888	default_loop = 0;	974	ev_default_loop_ptr = 0;
889	}	975	}
890		976
891	return default_loop;	977	return ev_default_loop_ptr;
892	}	978	}
893		979
894	void	980	void
895	ev_default_destroy (void)	981	ev_default_destroy (void)
896	{	982	{
897	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
899	#endif	985	#endif
900		986
901	#ifndef WIN32	987	#ifndef _WIN32
902	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
903	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
904	#endif	990	#endif
905		991
906	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
…		…
914		1000
915	void	1001	void
916	ev_default_fork (void)	1002	ev_default_fork (void)
917	{	1003	{
918	#if EV_MULTIPLICITY	1004	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1005	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1006	#endif
921		1007
922	if (method)	1008	if (method)
923	postfork = 1;	1009	postfork = 1;
924	}	1010	}
…		…
935	return 1;	1021	return 1;
936		1022
937	return 0;	1023	return 0;
938	}	1024	}
939		1025
940	static void	1026	inline void
941	call_pending (EV_P)	1027	call_pending (EV_P)
942	{	1028	{
943	int pri;	1029	int pri;
944		1030
945	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
946	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
947	{	1033	{
948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949		1035
950	if (p->w)	1036	if (expect_true (p->w))
951	{	1037	{
952	p->w->pending = 0;	1038	p->w->pending = 0;
953	EV_CB_INVOKE (p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
954	}	1040	}
955	}	1041	}
956	}	1042	}
957		1043
958	static void	1044	inline void
959	timers_reify (EV_P)	1045	timers_reify (EV_P)
960	{	1046	{
961	while (timercnt && ((WT)timers [0])->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
962	{	1048	{
963	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
…		…
966		1052
967	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
968	if (w->repeat)	1054	if (w->repeat)
969	{	1055	{
970	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
971	((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
972	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
973	}	1063	}
974	else	1064	else
975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976		1066
977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978	}	1068	}
979	}	1069	}
980		1070
981	static void	1071	#if EV_PERIODICS
		1072	inline void
982	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
983	{	1074	{
984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985	{	1076	{
986	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
987		1078
988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
989		1080
990	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
991	if (w->reschedule_cb)	1082	if (w->reschedule_cb)
992	{	1083	{
993	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1084	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
994
995	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1085	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996	downheap ((WT *)periodics, periodiccnt, 0);	1086	downheap ((WT *)periodics, periodiccnt, 0);
997	}	1087	}
998	else if (w->interval)	1088	else if (w->interval)
999	{	1089	{
1000	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1090	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1001	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1091	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1002	downheap ((WT *)periodics, periodiccnt, 0);	1092	downheap ((WT *)periodics, periodiccnt, 0);
1003	}	1093	}
1004	else	1094	else
1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1095	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006		1096
…		…
1017	for (i = 0; i < periodiccnt; ++i)	1107	for (i = 0; i < periodiccnt; ++i)
1018	{	1108	{
1019	struct ev_periodic *w = periodics [i];	1109	struct ev_periodic *w = periodics [i];
1020		1110
1021	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
1022	((WT)w)->at = w->reschedule_cb (w, rt_now);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023	else if (w->interval)	1113	else if (w->interval)
1024	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1114	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025	}	1115	}
1026		1116
1027	/* now rebuild the heap */	1117	/* now rebuild the heap */
1028	for (i = periodiccnt >> 1; i--; )	1118	for (i = periodiccnt >> 1; i--; )
1029	downheap ((WT *)periodics, periodiccnt, i);	1119	downheap ((WT *)periodics, periodiccnt, i);
1030	}	1120	}
		1121	#endif
1031		1122
1032	inline int	1123	inline int
1033	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
1034	{	1125	{
1035	mn_now = get_clock ();	1126	mn_now = get_clock ();
1036		1127
1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1128	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038	{	1129	{
1039	rt_now = rtmn_diff + mn_now;	1130	ev_rt_now = rtmn_diff + mn_now;
1040	return 0;	1131	return 0;
1041	}	1132	}
1042	else	1133	else
1043	{	1134	{
1044	now_floor = mn_now;	1135	now_floor = mn_now;
1045	rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
1046	return 1;	1137	return 1;
1047	}	1138	}
1048	}	1139	}
1049		1140
1050	static void	1141	inline void
1051	time_update (EV_P)	1142	time_update (EV_P)
1052	{	1143	{
1053	int i;	1144	int i;
1054		1145
1055	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
1059	{	1150	{
1060	ev_tstamp odiff = rtmn_diff;	1151	ev_tstamp odiff = rtmn_diff;
1061		1152
1062	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1153	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1063	{	1154	{
1064	rtmn_diff = rt_now - mn_now;	1155	rtmn_diff = ev_rt_now - mn_now;
1065		1156
1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1157	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067	return; /* all is well */	1158	return; /* all is well */
1068		1159
1069	rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
1070	mn_now = get_clock ();	1161	mn_now = get_clock ();
1071	now_floor = mn_now;	1162	now_floor = mn_now;
1072	}	1163	}
1073		1164
		1165	# if EV_PERIODICS
1074	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
1075	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1077	}	1170	}
1078	}	1171	}
1079	else	1172	else
1080	#endif	1173	#endif
1081	{	1174	{
1082	rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
1083		1176
1084	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1177	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1085	{	1178	{
		1179	#if EV_PERIODICS
1086	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
1087		1182
1088	/* 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 */
1089	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
1090	((WT)timers [i])->at += rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
1091	}	1186	}
1092		1187
1093	mn_now = rt_now;	1188	mn_now = ev_rt_now;
1094	}	1189	}
1095	}	1190	}
1096		1191
1097	void	1192	void
1098	ev_ref (EV_P)	1193	ev_ref (EV_P)
…		…
1112	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
1113	{	1208	{
1114	double block;	1209	double block;
1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1116		1211
1117	do	1212	while (activecnt)
1118	{	1213	{
1119	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
1120	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
1121	{	1216	{
1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	if (expect_true (have_monotonic))	1233	if (expect_true (have_monotonic))
1139	time_update_monotonic (EV_A);	1234	time_update_monotonic (EV_A);
1140	else	1235	else
1141	#endif	1236	#endif
1142	{	1237	{
1143	rt_now = ev_time ();	1238	ev_rt_now = ev_time ();
1144	mn_now = rt_now;	1239	mn_now = ev_rt_now;
1145	}	1240	}
1146		1241
1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1242	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1148	block = 0.;	1243	block = 0.;
1149	else	1244	else
…		…
1154	{	1249	{
1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1156	if (block > to) block = to;	1251	if (block > to) block = to;
1157	}	1252	}
1158		1253
		1254	#if EV_PERIODICS
1159	if (periodiccnt)	1255	if (periodiccnt)
1160	{	1256	{
1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1162	if (block > to) block = to;	1258	if (block > to) block = to;
1163	}	1259	}
		1260	#endif
1164		1261
1165	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
1166	}	1263	}
1167		1264
1168	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
1169		1266
1170	/* update rt_now, do magic */	1267	/* update ev_rt_now, do magic */
1171	time_update (EV_A);	1268	time_update (EV_A);
1172		1269
1173	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
1174	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
1175	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
1176		1275
1177	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
1178	if (idlecnt && !any_pending (EV_A))	1277	if (idlecnt && !any_pending (EV_A))
1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1180		1279
1181	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
1182	if (checkcnt)	1281	if (expect_false (checkcnt))
1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184		1283
1185	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
1186	}	1288	}
1187	while (activecnt && !loop_done);
1188		1289
1189	if (loop_done != 2)	1290	if (loop_done != 2)
1190	loop_done = 0;	1291	loop_done = 0;
1191	}	1292	}
1192		1293
…		…
1252	void	1353	void
1253	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1254	{	1355	{
1255	int fd = w->fd;	1356	int fd = w->fd;
1256		1357
1257	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1258	return;	1359	return;
1259		1360
1260	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1261		1362
1262	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
…		…
1268		1369
1269	void	1370	void
1270	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1271	{	1372	{
1272	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1273	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1274	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275		1378
1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1278		1381
1279	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1280	}	1383	}
1281		1384
1282	void	1385	void
1283	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1284	{	1387	{
1285	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1286	return;	1389	return;
1287		1390
1288	((WT)w)->at += mn_now;	1391	((WT)w)->at += mn_now;
1289		1392
1290	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.));
1291		1394
1292	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1294	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1295	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
1296		1399
1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298	}	1401	}
1299		1402
1300	void	1403	void
1301	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1302	{	1405	{
1303	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1304	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1305	return;	1408	return;
1306		1409
1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1308		1411
1309	if (((W)w)->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1310	{	1413	{
1311	timers [((W)w)->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1313	}	1416	}
1314		1417
1315	((WT)w)->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1316		1419
1317	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1318	}	1421	}
1319		1422
1320	void	1423	void
…		…
1323	if (ev_is_active (w))	1426	if (ev_is_active (w))
1324	{	1427	{
1325	if (w->repeat)	1428	if (w->repeat)
1326	{	1429	{
1327	((WT)w)->at = mn_now + w->repeat;	1430	((WT)w)->at = mn_now + w->repeat;
1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329	}	1432	}
1330	else	1433	else
1331	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1332	}	1435	}
1333	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1334	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1335	}	1441	}
1336		1442
		1443	#if EV_PERIODICS
1337	void	1444	void
1338	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1339	{	1446	{
1340	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1341	return;	1448	return;
1342		1449
1343	if (w->reschedule_cb)	1450	if (w->reschedule_cb)
1344	((WT)w)->at = w->reschedule_cb (w, rt_now);	1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345	else if (w->interval)	1452	else if (w->interval)
1346	{	1453	{
1347	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1454	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1348	/* 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 */
1349	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1456	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1350	}	1457	}
1351		1458
1352	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1355	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
1356		1463
1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358	}	1465	}
1359		1466
1360	void	1467	void
1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1362	{	1469	{
1363	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1364	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1365	return;	1472	return;
1366		1473
1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1368		1475
1369	if (((W)w)->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1370	{	1477	{
1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1373	}	1480	}
1374		1481
1375	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1376	}	1483	}
1377		1484
1378	void	1485	void
1379	ev_periodic_again (EV_P_ struct ev_periodic *w)	1486	ev_periodic_again (EV_P_ struct ev_periodic *w)
1380	{	1487	{
		1488	/* TODO: use adjustheap and recalculation */
1381	ev_periodic_stop (EV_A_ w);	1489	ev_periodic_stop (EV_A_ w);
1382	ev_periodic_start (EV_A_ w);	1490	ev_periodic_start (EV_A_ w);
1383	}	1491	}
		1492	#endif
1384		1493
1385	void	1494	void
1386	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1387	{	1496	{
1388	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1389	return;	1498	return;
1390		1499
1391	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1393	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1394	}	1503	}
1395		1504
1396	void	1505	void
1397	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1398	{	1507	{
1399	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1400	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1401	return;	1510	return;
1402		1511
1403	idles [((W)w)->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1404	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1405	}	1514	}
1406		1515
1407	void	1516	void
1408	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1409	{	1518	{
1410	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1411	return;	1520	return;
1412		1521
1413	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1415	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1416	}	1525	}
1417		1526
1418	void	1527	void
1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420	{	1529	{
1421	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1423	return;	1532	return;
1424		1533
1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1427	}	1536	}
1428		1537
1429	void	1538	void
1430	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1431	{	1540	{
1432	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1433	return;	1542	return;
1434		1543
1435	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1437	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1438	}	1547	}
1439		1548
1440	void	1549	void
1441	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1442	{	1551	{
1443	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1445	return;	1554	return;
1446		1555
1447	checks [((W)w)->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1448	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1449	}	1558	}
…		…
1454		1563
1455	void	1564	void
1456	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1457	{	1566	{
1458	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1459	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));
1460	#endif	1569	#endif
1461	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1462	return;	1571	return;
1463		1572
1464	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));
1465		1574
1466	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469		1578
1470	if (!((WL)w)->next)	1579	if (!((WL)w)->next)
1471	{	1580	{
1472	#if WIN32	1581	#if _WIN32
1473	signal (w->signum, sighandler);	1582	signal (w->signum, sighandler);
1474	#else	1583	#else
1475	struct sigaction sa;	1584	struct sigaction sa;
1476	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1477	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
…		…
1483		1592
1484	void	1593	void
1485	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1486	{	1595	{
1487	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1489	return;	1598	return;
1490		1599
1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1493		1602
…		…
1497		1606
1498	void	1607	void
1499	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1500	{	1609	{
1501	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1502	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));
1503	#endif	1612	#endif
1504	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1505	return;	1614	return;
1506		1615
1507	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1509	}	1618	}
1510		1619
1511	void	1620	void
1512	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1513	{	1622	{
1514	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1515	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1516	return;	1625	return;
1517		1626
1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1519	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1520	}	1629	}
…		…
1557	void	1666	void
1558	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)
1559	{	1668	{
1560	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));
1561		1670
1562	if (!once)	1671	if (expect_false (!once))
		1672	{
1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1564	else	1674	return;
1565	{	1675	}
		1676
1566	once->cb = cb;	1677	once->cb = cb;
1567	once->arg = arg;	1678	once->arg = arg;
1568		1679
1569	ev_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1570	if (fd >= 0)	1681	if (fd >= 0)
1571	{	1682	{
1572	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1573	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1574	}	1685	}
1575		1686
1576	ev_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1577	if (timeout >= 0.)	1688	if (timeout >= 0.)
1578	{	1689	{
1579	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1580	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1581	}
1582	}	1692	}
1583	}	1693	}
1584		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.83 by root, Fri Nov 9 21:48:23 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 1.83 by root, Fri Nov 9 21:48:23 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC