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

Comparing libev/ev.c (file contents):
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs.
Revision 1.127 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
		186	#ifdef EV_H
		187	# include EV_H
		188	#else
131	#include "ev.h"	189	# include "ev.h"
		190	#endif
132		191
133	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	194	# define inline static inline
136	#else	195	#else
137	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
138	# define inline static	197	# define inline static
139	#endif	198	#endif
140		199
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
143		202
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
147	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
150		212
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		214
		215	#ifdef _WIN32
153	#include "ev_win32.c"	216	# include "ev_win32.c"
		217	#endif
154		218
155	/*****************************************************************************/	219	/*****************************************************************************/
156		220
157	static void (syserr_cb)(const char msg);	221	static void (syserr_cb)(const char msg);
158		222
…		…
205	typedef struct	269	typedef struct
206	{	270	{
207	WL head;	271	WL head;
208	unsigned char events;	272	unsigned char events;
209	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
210	} ANFD;	277	} ANFD;
211		278
212	typedef struct	279	typedef struct
213	{	280	{
214	W w;	281	W w;
215	int events;	282	int events;
216	} ANPENDING;	283	} ANPENDING;
217		284
218	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
219		286
220	struct ev_loop	287	struct ev_loop
221	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	292	#include "ev_vars.h"
224	};
225	# undef VAR	293	#undef VAR
		294	};
226	# include "ev_wrap.h"	295	#include "ev_wrap.h"
		296
		297	static struct ev_loop default_loop_struct;
		298	struct ev_loop *ev_default_loop_ptr;
227		299
228	#else	300	#else
229		301
		302	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	304	#include "ev_vars.h"
232	# undef VAR	305	#undef VAR
		306
		307	static int ev_default_loop_ptr;
233		308
234	#endif	309	#endif
235		310
236	/*****************************************************************************/	311	/*****************************************************************************/
237		312
238	inline ev_tstamp	313	ev_tstamp
239	ev_time (void)	314	ev_time (void)
240	{	315	{
241	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
242	struct timespec ts;	317	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	337	#endif
263		338
264	return ev_time ();	339	return ev_time ();
265	}	340	}
266		341
		342	#if EV_MULTIPLICITY
267	ev_tstamp	343	ev_tstamp
268	ev_now (EV_P)	344	ev_now (EV_P)
269	{	345	{
270	return rt_now;	346	return ev_rt_now;
271	}	347	}
		348	#endif
272		349
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		351
275	#define array_needsize(type,base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
277	{ \	354	{ \
278	int newcnt = cur; \	355	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	370	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	373	}
297		374
298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300	#define array_free_microshit(stem) \
301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303	#define array_free(stem, idx) \	375	#define array_free(stem, idx) \
304	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;
305		377
306	/*****************************************************************************/	378	/*****************************************************************************/
307		379
…		…
321	void	393	void
322	ev_feed_event (EV_P_ void *w, int revents)	394	ev_feed_event (EV_P_ void *w, int revents)
323	{	395	{
324	W w_ = (W)w;	396	W w_ = (W)w;
325		397
326	if (w_->pending)	398	if (expect_false (w_->pending))
327	{	399	{
328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
329	return;	401	return;
330	}	402	}
331		403
332	w_->pending = ++pendingcnt [ABSPRI (w_)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
333	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);
334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336	}	408	}
337		409
338	static void	410	static void
…		…
342		414
343	for (i = 0; i < eventcnt; ++i)	415	for (i = 0; i < eventcnt; ++i)
344	ev_feed_event (EV_A_ events [i], type);	416	ev_feed_event (EV_A_ events [i], type);
345	}	417	}
346		418
347	static void	419	inline void
348	fd_event (EV_P_ int fd, int events)	420	fd_event (EV_P_ int fd, int revents)
349	{	421	{
350	ANFD *anfd = anfds + fd;	422	ANFD *anfd = anfds + fd;
351	struct ev_io *w;	423	struct ev_io *w;
352		424
353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	425	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
354	{	426	{
355	int ev = w->events & events;	427	int ev = w->events & revents;
356		428
357	if (ev)	429	if (ev)
358	ev_feed_event (EV_A_ (W)w, ev);	430	ev_feed_event (EV_A_ (W)w, ev);
359	}	431	}
360	}	432	}
361		433
		434	void
		435	ev_feed_fd_event (EV_P_ int fd, int revents)
		436	{
		437	fd_event (EV_A_ fd, revents);
		438	}
		439
362	/*****************************************************************************/	440	/*****************************************************************************/
363		441
364	static void	442	inline void
365	fd_reify (EV_P)	443	fd_reify (EV_P)
366	{	444	{
367	int i;	445	int i;
368		446
369	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
375	int events = 0;	453	int events = 0;
376		454
377	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)
378	events \|= w->events;	456	events \|= w->events;
379		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
380	anfd->reify = 0;	467	anfd->reify = 0;
381		468
382	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
383	anfd->events = events;	470	anfd->events = events;
384	}	471	}
…		…
387	}	474	}
388		475
389	static void	476	static void
390	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
391	{	478	{
392	if (anfds [fd].reify)	479	if (expect_false (anfds [fd].reify))
393	return;	480	return;
394		481
395	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
396		483
397	++fdchangecnt;	484	++fdchangecnt;
398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
399	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
400	}	487	}
401		488
402	static void	489	static void
403	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
409	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
410	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);
411	}	498	}
412	}	499	}
413		500
414	static int	501	inline int
415	fd_valid (int fd)	502	fd_valid (int fd)
416	{	503	{
417	#ifdef WIN32	504	#ifdef _WIN32
418	return !!win32_get_osfhandle (fd);	505	return _get_osfhandle (fd) != -1;
419	#else	506	#else
420	return fcntl (fd, F_GETFD) != -1;	507	return fcntl (fd, F_GETFD) != -1;
421	#endif	508	#endif
422	}	509	}
423		510
…		…
503		590
504	heap [k] = w;	591	heap [k] = w;
505	((W)heap [k])->active = k + 1;	592	((W)heap [k])->active = k + 1;
506	}	593	}
507		594
		595	inline void
		596	adjustheap (WT *heap, int N, int k)
		597	{
		598	upheap (heap, k);
		599	downheap (heap, N, k);
		600	}
		601
508	/*****************************************************************************/	602	/*****************************************************************************/
509		603
510	typedef struct	604	typedef struct
511	{	605	{
512	WL head;	606	WL head;
…		…
533	}	627	}
534		628
535	static void	629	static void
536	sighandler (int signum)	630	sighandler (int signum)
537	{	631	{
538	#if WIN32	632	#if _WIN32
539	signal (signum, sighandler);	633	signal (signum, sighandler);
540	#endif	634	#endif
541		635
542	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
543		637
544	if (!gotsig)	638	if (!gotsig)
545	{	639	{
546	int old_errno = errno;	640	int old_errno = errno;
547	gotsig = 1;	641	gotsig = 1;
548	#ifdef WIN32
549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
550	#else
551	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
552	#endif
553	errno = old_errno;	643	errno = old_errno;
554	}	644	}
555	}	645	}
556		646
		647	void
		648	ev_feed_signal_event (EV_P_ int signum)
		649	{
		650	WL w;
		651
		652	#if EV_MULTIPLICITY
		653	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		654	#endif
		655
		656	--signum;
		657
		658	if (signum < 0 \|\| signum >= signalmax)
		659	return;
		660
		661	signals [signum].gotsig = 0;
		662
		663	for (w = signals [signum].head; w; w = w->next)
		664	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		665	}
		666
557	static void	667	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	669	{
560	WL w;
561	int signum;	670	int signum;
562		671
563	#ifdef WIN32
564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
565	#else
566	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
567	#endif
568	gotsig = 0;	673	gotsig = 0;
569		674
570	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
571	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
572	{	677	ev_feed_signal_event (EV_A_ signum + 1);
573	signals [signum].gotsig = 0;	678	}
574		679
575	for (w = signals [signum].head; w; w = w->next)	680	static void
576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	681	fd_intern (int fd)
577	}	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
578	}	690	}
579		691
580	static void	692	static void
581	siginit (EV_P)	693	siginit (EV_P)
582	{	694	{
583	#ifndef WIN32	695	fd_intern (sigpipe [0]);
584	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
585	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
586
587	/* rather than sort out wether we really need nb, set it */
588	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
589	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
590	#endif
591		697
592	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
593	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
594	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
595	}	701	}
596		702
597	/*****************************************************************************/	703	/*****************************************************************************/
598		704
599	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
600		706
601	#ifndef WIN32	707	#ifndef _WIN32
602		708
603	static struct ev_signal childev;	709	static struct ev_signal childev;
604		710
605	#ifndef WCONTINUED	711	#ifndef WCONTINUED
606	# define WCONTINUED 0	712	# define WCONTINUED 0
…		…
638		744
639	#endif	745	#endif
640		746
641	/*****************************************************************************/	747	/*****************************************************************************/
642		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
643	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
644	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
645	#endif	754	#endif
646	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
647	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
667		776
668	/* 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 */
669	static int	778	static int
670	enable_secure (void)	779	enable_secure (void)
671	{	780	{
672	#ifdef WIN32	781	#ifdef _WIN32
673	return 0;	782	return 0;
674	#else	783	#else
675	return getuid () != geteuid ()	784	return getuid () != geteuid ()
676	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
677	#endif	786	#endif
678	}	787	}
679		788
680	int	789	unsigned int
681	ev_method (EV_P)	790	ev_method (EV_P)
682	{	791	{
683	return method;	792	return method;
684	}	793	}
685		794
686	static void	795	static void
687	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
688	{	797	{
689	if (!method)	798	if (!method)
690	{	799	{
691	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
692	{	801	{
…		…
694	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
695	have_monotonic = 1;	804	have_monotonic = 1;
696	}	805	}
697	#endif	806	#endif
698		807
699	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
700	mn_now = get_clock ();	809	mn_now = get_clock ();
701	now_floor = mn_now;	810	now_floor = mn_now;
702	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
703		812
704	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
705	if (!enable_secure () && getenv ("LIBEV_METHODS"))
706	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
707	else	815
708	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
709		818
710	method = 0;	819	method = 0;
711	#if EV_USE_WIN32	820	#if EV_USE_PORT
712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
713	#endif	822	#endif
714	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
716	#endif	825	#endif
717	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
719	#endif	828	#endif
720	#if EV_USE_POLL	829	#if EV_USE_POLL
721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
722	#endif	831	#endif
723	#if EV_USE_SELECT	832	#if EV_USE_SELECT
724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
725	#endif	834	#endif
726		835
727	ev_watcher_init (&sigev, sigcb);	836	ev_init (&sigev, sigcb);
728	ev_set_priority (&sigev, EV_MAXPRI);	837	ev_set_priority (&sigev, EV_MAXPRI);
729	}	838	}
730	}	839	}
731		840
732	void	841	static void
733	loop_destroy (EV_P)	842	loop_destroy (EV_P)
734	{	843	{
735	int i;	844	int i;
736		845
737	#if EV_USE_WIN32	846	#if EV_USE_PORT
738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
739	#endif	848	#endif
740	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
742	#endif	851	#endif
743	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
…		…
752		861
753	for (i = NUMPRI; i--; )	862	for (i = NUMPRI; i--; )
754	array_free (pending, [i]);	863	array_free (pending, [i]);
755		864
756	/* have to use the microsoft-never-gets-it-right macro */	865	/* have to use the microsoft-never-gets-it-right macro */
757	array_free_microshit (fdchange);	866	array_free (fdchange, EMPTY0);
758	array_free_microshit (timer);	867	array_free (timer, EMPTY0);
759	array_free_microshit (periodic);	868	#if EV_PERIODICS
760	array_free_microshit (idle);	869	array_free (periodic, EMPTY0);
761	array_free_microshit (prepare);	870	#endif
762	array_free_microshit (check);	871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
763		874
764	method = 0;	875	method = 0;
765	}	876	}
766		877
767	static void	878	static void
768	loop_fork (EV_P)	879	loop_fork (EV_P)
769	{	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
770	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
772	#endif
773	#if EV_USE_KQUEUE
774	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
775	#endif	889	#endif
776		890
777	if (ev_is_active (&sigev))	891	if (ev_is_active (&sigev))
778	{	892	{
779	/* default loop */	893	/* default loop */
…		…
792	postfork = 0;	906	postfork = 0;
793	}	907	}
794		908
795	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
796	struct ev_loop *	910	struct ev_loop *
797	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
798	{	912	{
799	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));
800		914
801	memset (loop, 0, sizeof (struct ev_loop));	915	memset (loop, 0, sizeof (struct ev_loop));
802		916
803	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
804		918
805	if (ev_method (EV_A))	919	if (ev_method (EV_A))
806	return loop;	920	return loop;
807		921
808	return 0;	922	return 0;
…		…
822	}	936	}
823		937
824	#endif	938	#endif
825		939
826	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
827	struct ev_loop default_loop_struct;
828	static struct ev_loop *default_loop;
829
830	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
831	#else	943	#else
832	static int default_loop;
833
834	int	944	int
		945	ev_default_loop (unsigned int flags)
835	#endif	946	#endif
836	ev_default_loop (int methods)
837	{	947	{
838	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
839	if (pipe (sigpipe))	949	if (pipe (sigpipe))
840	return 0;	950	return 0;
841		951
842	if (!default_loop)	952	if (!ev_default_loop_ptr)
843	{	953	{
844	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
845	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
846	#else	956	#else
847	default_loop = 1;	957	ev_default_loop_ptr = 1;
848	#endif	958	#endif
849		959
850	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
851		961
852	if (ev_method (EV_A))	962	if (ev_method (EV_A))
853	{	963	{
854	siginit (EV_A);	964	siginit (EV_A);
855		965
856	#ifndef WIN32	966	#ifndef _WIN32
857	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
858	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
859	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
860	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
861	#endif	971	#endif
862	}	972	}
863	else	973	else
864	default_loop = 0;	974	ev_default_loop_ptr = 0;
865	}	975	}
866		976
867	return default_loop;	977	return ev_default_loop_ptr;
868	}	978	}
869		979
870	void	980	void
871	ev_default_destroy (void)	981	ev_default_destroy (void)
872	{	982	{
873	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
874	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
875	#endif	985	#endif
876		986
877	#ifndef WIN32	987	#ifndef _WIN32
878	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
879	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
880	#endif	990	#endif
881		991
882	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
…		…
890		1000
891	void	1001	void
892	ev_default_fork (void)	1002	ev_default_fork (void)
893	{	1003	{
894	#if EV_MULTIPLICITY	1004	#if EV_MULTIPLICITY
895	struct ev_loop *loop = default_loop;	1005	struct ev_loop *loop = ev_default_loop_ptr;
896	#endif	1006	#endif
897		1007
898	if (method)	1008	if (method)
899	postfork = 1;	1009	postfork = 1;
900	}	1010	}
…		…
911	return 1;	1021	return 1;
912		1022
913	return 0;	1023	return 0;
914	}	1024	}
915		1025
916	static void	1026	inline void
917	call_pending (EV_P)	1027	call_pending (EV_P)
918	{	1028	{
919	int pri;	1029	int pri;
920		1030
921	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
922	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
923	{	1033	{
924	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
925		1035
926	if (p->w)	1036	if (expect_true (p->w))
927	{	1037	{
928	p->w->pending = 0;	1038	p->w->pending = 0;
929	p->w->cb (EV_A_ p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
930	}	1040	}
931	}	1041	}
932	}	1042	}
933		1043
934	static void	1044	inline void
935	timers_reify (EV_P)	1045	timers_reify (EV_P)
936	{	1046	{
937	while (timercnt && ((WT)timers [0])->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
938	{	1048	{
939	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
…		…
942		1052
943	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
944	if (w->repeat)	1054	if (w->repeat)
945	{	1055	{
946	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
947	((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
948	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
949	}	1063	}
950	else	1064	else
951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
952		1066
953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
954	}	1068	}
955	}	1069	}
956		1070
957	static void	1071	#if EV_PERIODICS
		1072	inline void
958	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
959	{	1074	{
960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
961	{	1076	{
962	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
963		1078
964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
965		1080
966	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
967	if (w->reschedule_cb)	1082	if (w->reschedule_cb)
968	{	1083	{
969	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);
970
971	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));
972	downheap ((WT *)periodics, periodiccnt, 0);	1086	downheap ((WT *)periodics, periodiccnt, 0);
973	}	1087	}
974	else if (w->interval)	1088	else if (w->interval)
975	{	1089	{
976	((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;
977	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));
978	downheap ((WT *)periodics, periodiccnt, 0);	1092	downheap ((WT *)periodics, periodiccnt, 0);
979	}	1093	}
980	else	1094	else
981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1095	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
982		1096
…		…
993	for (i = 0; i < periodiccnt; ++i)	1107	for (i = 0; i < periodiccnt; ++i)
994	{	1108	{
995	struct ev_periodic *w = periodics [i];	1109	struct ev_periodic *w = periodics [i];
996		1110
997	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
998	((WT)w)->at = w->reschedule_cb (w, rt_now);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
999	else if (w->interval)	1113	else if (w->interval)
1000	((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;
1001	}	1115	}
1002		1116
1003	/* now rebuild the heap */	1117	/* now rebuild the heap */
1004	for (i = periodiccnt >> 1; i--; )	1118	for (i = periodiccnt >> 1; i--; )
1005	downheap ((WT *)periodics, periodiccnt, i);	1119	downheap ((WT *)periodics, periodiccnt, i);
1006	}	1120	}
		1121	#endif
1007		1122
1008	inline int	1123	inline int
1009	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
1010	{	1125	{
1011	mn_now = get_clock ();	1126	mn_now = get_clock ();
1012		1127
1013	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1128	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1014	{	1129	{
1015	rt_now = rtmn_diff + mn_now;	1130	ev_rt_now = rtmn_diff + mn_now;
1016	return 0;	1131	return 0;
1017	}	1132	}
1018	else	1133	else
1019	{	1134	{
1020	now_floor = mn_now;	1135	now_floor = mn_now;
1021	rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
1022	return 1;	1137	return 1;
1023	}	1138	}
1024	}	1139	}
1025		1140
1026	static void	1141	inline void
1027	time_update (EV_P)	1142	time_update (EV_P)
1028	{	1143	{
1029	int i;	1144	int i;
1030		1145
1031	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
1035	{	1150	{
1036	ev_tstamp odiff = rtmn_diff;	1151	ev_tstamp odiff = rtmn_diff;
1037		1152
1038	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 */
1039	{	1154	{
1040	rtmn_diff = rt_now - mn_now;	1155	rtmn_diff = ev_rt_now - mn_now;
1041		1156
1042	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1157	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1043	return; /* all is well */	1158	return; /* all is well */
1044		1159
1045	rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
1046	mn_now = get_clock ();	1161	mn_now = get_clock ();
1047	now_floor = mn_now;	1162	now_floor = mn_now;
1048	}	1163	}
1049		1164
		1165	# if EV_PERIODICS
1050	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
1051	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
1052	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1053	}	1170	}
1054	}	1171	}
1055	else	1172	else
1056	#endif	1173	#endif
1057	{	1174	{
1058	rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
1059		1176
1060	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))
1061	{	1178	{
		1179	#if EV_PERIODICS
1062	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
1063		1182
1064	/* 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 */
1065	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
1066	((WT)timers [i])->at += rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
1067	}	1186	}
1068		1187
1069	mn_now = rt_now;	1188	mn_now = ev_rt_now;
1070	}	1189	}
1071	}	1190	}
1072		1191
1073	void	1192	void
1074	ev_ref (EV_P)	1193	ev_ref (EV_P)
…		…
1088	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
1089	{	1208	{
1090	double block;	1209	double block;
1091	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1092		1211
1093	do	1212	while (activecnt)
1094	{	1213	{
1095	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
1096	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
1097	{	1216	{
1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1114	if (expect_true (have_monotonic))	1233	if (expect_true (have_monotonic))
1115	time_update_monotonic (EV_A);	1234	time_update_monotonic (EV_A);
1116	else	1235	else
1117	#endif	1236	#endif
1118	{	1237	{
1119	rt_now = ev_time ();	1238	ev_rt_now = ev_time ();
1120	mn_now = rt_now;	1239	mn_now = ev_rt_now;
1121	}	1240	}
1122		1241
1123	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1242	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1124	block = 0.;	1243	block = 0.;
1125	else	1244	else
…		…
1130	{	1249	{
1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1132	if (block > to) block = to;	1251	if (block > to) block = to;
1133	}	1252	}
1134		1253
		1254	#if EV_PERIODICS
1135	if (periodiccnt)	1255	if (periodiccnt)
1136	{	1256	{
1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1138	if (block > to) block = to;	1258	if (block > to) block = to;
1139	}	1259	}
		1260	#endif
1140		1261
1141	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
1142	}	1263	}
1143		1264
1144	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
1145		1266
1146	/* update rt_now, do magic */	1267	/* update ev_rt_now, do magic */
1147	time_update (EV_A);	1268	time_update (EV_A);
1148		1269
1149	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
1150	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
1151	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
1152		1275
1153	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
1154	if (idlecnt && !any_pending (EV_A))	1277	if (idlecnt && !any_pending (EV_A))
1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1156		1279
1157	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
1158	if (checkcnt)	1281	if (expect_false (checkcnt))
1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1160		1283
1161	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
1162	}	1288	}
1163	while (activecnt && !loop_done);
1164		1289
1165	if (loop_done != 2)	1290	if (loop_done != 2)
1166	loop_done = 0;	1291	loop_done = 0;
1167	}	1292	}
1168		1293
…		…
1228	void	1353	void
1229	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1230	{	1355	{
1231	int fd = w->fd;	1356	int fd = w->fd;
1232		1357
1233	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1234	return;	1359	return;
1235		1360
1236	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1237		1362
1238	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
…		…
1244		1369
1245	void	1370	void
1246	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1247	{	1372	{
1248	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1249	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1250	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1251		1378
1252	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1253	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1254		1381
1255	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1256	}	1383	}
1257		1384
1258	void	1385	void
1259	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1260	{	1387	{
1261	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1262	return;	1389	return;
1263		1390
1264	((WT)w)->at += mn_now;	1391	((WT)w)->at += mn_now;
1265		1392
1266	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.));
1267		1394
1268	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1270	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1271	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
1272		1399
1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1274	}	1401	}
1275		1402
1276	void	1403	void
1277	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1278	{	1405	{
1279	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1280	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1281	return;	1408	return;
1282		1409
1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1284		1411
1285	if (((W)w)->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1286	{	1413	{
1287	timers [((W)w)->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1289	}	1416	}
1290		1417
1291	((WT)w)->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1292		1419
1293	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1294	}	1421	}
1295		1422
1296	void	1423	void
…		…
1299	if (ev_is_active (w))	1426	if (ev_is_active (w))
1300	{	1427	{
1301	if (w->repeat)	1428	if (w->repeat)
1302	{	1429	{
1303	((WT)w)->at = mn_now + w->repeat;	1430	((WT)w)->at = mn_now + w->repeat;
1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1305	}	1432	}
1306	else	1433	else
1307	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1308	}	1435	}
1309	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1310	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1311	}	1441	}
1312		1442
		1443	#if EV_PERIODICS
1313	void	1444	void
1314	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1315	{	1446	{
1316	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1317	return;	1448	return;
1318		1449
1319	if (w->reschedule_cb)	1450	if (w->reschedule_cb)
1320	((WT)w)->at = w->reschedule_cb (w, rt_now);	1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1321	else if (w->interval)	1452	else if (w->interval)
1322	{	1453	{
1323	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.));
1324	/* 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 */
1325	((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;
1326	}	1457	}
1327		1458
1328	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1330	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1331	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
1332		1463
1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1334	}	1465	}
1335		1466
1336	void	1467	void
1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1338	{	1469	{
1339	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1340	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1341	return;	1472	return;
1342		1473
1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1344		1475
1345	if (((W)w)->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1346	{	1477	{
1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1349	}	1480	}
1350		1481
1351	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1352	}	1483	}
1353		1484
1354	void	1485	void
1355	ev_periodic_again (EV_P_ struct ev_periodic *w)	1486	ev_periodic_again (EV_P_ struct ev_periodic *w)
1356	{	1487	{
		1488	/* TODO: use adjustheap and recalculation */
1357	ev_periodic_stop (EV_A_ w);	1489	ev_periodic_stop (EV_A_ w);
1358	ev_periodic_start (EV_A_ w);	1490	ev_periodic_start (EV_A_ w);
1359	}	1491	}
		1492	#endif
1360		1493
1361	void	1494	void
1362	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1363	{	1496	{
1364	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1365	return;	1498	return;
1366		1499
1367	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1369	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1370	}	1503	}
1371		1504
1372	void	1505	void
1373	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1374	{	1507	{
1375	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1376	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1377	return;	1510	return;
1378		1511
1379	idles [((W)w)->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1380	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1381	}	1514	}
1382		1515
1383	void	1516	void
1384	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1385	{	1518	{
1386	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1387	return;	1520	return;
1388		1521
1389	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1391	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1392	}	1525	}
1393		1526
1394	void	1527	void
1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1396	{	1529	{
1397	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1399	return;	1532	return;
1400		1533
1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1402	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1403	}	1536	}
1404		1537
1405	void	1538	void
1406	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1407	{	1540	{
1408	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1409	return;	1542	return;
1410		1543
1411	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1413	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1414	}	1547	}
1415		1548
1416	void	1549	void
1417	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1418	{	1551	{
1419	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1421	return;	1554	return;
1422		1555
1423	checks [((W)w)->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1424	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1425	}	1558	}
…		…
1430		1563
1431	void	1564	void
1432	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1433	{	1566	{
1434	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1435	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));
1436	#endif	1569	#endif
1437	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1438	return;	1571	return;
1439		1572
1440	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));
1441		1574
1442	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1445		1578
1446	if (!((WL)w)->next)	1579	if (!((WL)w)->next)
1447	{	1580	{
1448	#if WIN32	1581	#if _WIN32
1449	signal (w->signum, sighandler);	1582	signal (w->signum, sighandler);
1450	#else	1583	#else
1451	struct sigaction sa;	1584	struct sigaction sa;
1452	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1453	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
…		…
1459		1592
1460	void	1593	void
1461	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1462	{	1595	{
1463	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1464	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1465	return;	1598	return;
1466		1599
1467	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1468	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1469		1602
…		…
1473		1606
1474	void	1607	void
1475	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1476	{	1609	{
1477	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1478	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));
1479	#endif	1612	#endif
1480	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1481	return;	1614	return;
1482		1615
1483	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1485	}	1618	}
1486		1619
1487	void	1620	void
1488	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1489	{	1622	{
1490	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1491	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1492	return;	1625	return;
1493		1626
1494	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1495	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1496	}	1629	}
…		…
1533	void	1666	void
1534	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)
1535	{	1668	{
1536	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));
1537		1670
1538	if (!once)	1671	if (expect_false (!once))
		1672	{
1539	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1540	else	1674	return;
1541	{	1675	}
		1676
1542	once->cb = cb;	1677	once->cb = cb;
1543	once->arg = arg;	1678	once->arg = arg;
1544		1679
1545	ev_watcher_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1546	if (fd >= 0)	1681	if (fd >= 0)
1547	{	1682	{
1548	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1549	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1550	}	1685	}
1551		1686
1552	ev_watcher_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1553	if (timeout >= 0.)	1688	if (timeout >= 0.)
1554	{	1689	{
1555	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1556	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1557	}
1558	}	1692	}
1559	}	1693	}
1560		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs. Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC