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

Comparing libev/ev.c (file contents):
Revision 1.77 by root, Thu Nov 8 00:44:17 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
…		…
316		388
317	++base;	389	++base;
318	}	390	}
319	}	391	}
320		392
321	static void	393	void
322	event (EV_P_ W w, int events)	394	ev_feed_event (EV_P_ void *w, int revents)
323	{	395	{
324	if (w->pending)	396	W w_ = (W)w;
		397
		398	if (expect_false (w_->pending))
325	{	399	{
326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
327	return;	401	return;
328	}	402	}
329		403
330	w->pending = ++pendingcnt [ABSPRI (w)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
331	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);
332	pendings [ABSPRI (w)][w->pending - 1].w = w;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333	pendings [ABSPRI (w)][w->pending - 1].events = events;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334	}	408	}
335		409
336	static void	410	static void
337	queue_events (EV_P_ W *events, int eventcnt, int type)	411	queue_events (EV_P_ W *events, int eventcnt, int type)
338	{	412	{
339	int i;	413	int i;
340		414
341	for (i = 0; i < eventcnt; ++i)	415	for (i = 0; i < eventcnt; ++i)
342	event (EV_A_ events [i], type);	416	ev_feed_event (EV_A_ events [i], type);
343	}	417	}
344		418
345	static void	419	inline void
346	fd_event (EV_P_ int fd, int events)	420	fd_event (EV_P_ int fd, int revents)
347	{	421	{
348	ANFD *anfd = anfds + fd;	422	ANFD *anfd = anfds + fd;
349	struct ev_io *w;	423	struct ev_io *w;
350		424
351	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)
352	{	426	{
353	int ev = w->events & events;	427	int ev = w->events & revents;
354		428
355	if (ev)	429	if (ev)
356	event (EV_A_ (W)w, ev);	430	ev_feed_event (EV_A_ (W)w, ev);
357	}	431	}
		432	}
		433
		434	void
		435	ev_feed_fd_event (EV_P_ int fd, int revents)
		436	{
		437	fd_event (EV_A_ fd, revents);
358	}	438	}
359		439
360	/*****************************************************************************/	440	/*****************************************************************************/
361		441
362	static void	442	inline void
363	fd_reify (EV_P)	443	fd_reify (EV_P)
364	{	444	{
365	int i;	445	int i;
366		446
367	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
373	int events = 0;	453	int events = 0;
374		454
375	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)
376	events \|= w->events;	456	events \|= w->events;
377		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
378	anfd->reify = 0;	467	anfd->reify = 0;
379		468
380	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
381	anfd->events = events;	470	anfd->events = events;
382	}	471	}
…		…
385	}	474	}
386		475
387	static void	476	static void
388	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
389	{	478	{
390	if (anfds [fd].reify)	479	if (expect_false (anfds [fd].reify))
391	return;	480	return;
392		481
393	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
394		483
395	++fdchangecnt;	484	++fdchangecnt;
396	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
398	}	487	}
399		488
400	static void	489	static void
401	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
403	struct ev_io *w;	492	struct ev_io *w;
404		493
405	while ((w = (struct ev_io *)anfds [fd].head))	494	while ((w = (struct ev_io *)anfds [fd].head))
406	{	495	{
407	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
408	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);
409	}	498	}
410	}	499	}
411		500
412	static int	501	inline int
413	fd_valid (int fd)	502	fd_valid (int fd)
414	{	503	{
415	#ifdef WIN32	504	#ifdef _WIN32
416	return !!win32_get_osfhandle (fd);	505	return _get_osfhandle (fd) != -1;
417	#else	506	#else
418	return fcntl (fd, F_GETFD) != -1;	507	return fcntl (fd, F_GETFD) != -1;
419	#endif	508	#endif
420	}	509	}
421		510
…		…
501		590
502	heap [k] = w;	591	heap [k] = w;
503	((W)heap [k])->active = k + 1;	592	((W)heap [k])->active = k + 1;
504	}	593	}
505		594
		595	inline void
		596	adjustheap (WT *heap, int N, int k)
		597	{
		598	upheap (heap, k);
		599	downheap (heap, N, k);
		600	}
		601
506	/*****************************************************************************/	602	/*****************************************************************************/
507		603
508	typedef struct	604	typedef struct
509	{	605	{
510	WL head;	606	WL head;
…		…
531	}	627	}
532		628
533	static void	629	static void
534	sighandler (int signum)	630	sighandler (int signum)
535	{	631	{
536	#if WIN32	632	#if _WIN32
537	signal (signum, sighandler);	633	signal (signum, sighandler);
538	#endif	634	#endif
539		635
540	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
541		637
542	if (!gotsig)	638	if (!gotsig)
543	{	639	{
544	int old_errno = errno;	640	int old_errno = errno;
545	gotsig = 1;	641	gotsig = 1;
546	#ifdef WIN32
547	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548	#else
549	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
550	#endif
551	errno = old_errno;	643	errno = old_errno;
552	}	644	}
553	}	645	}
554		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
555	static void	667	static void
556	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
557	{	669	{
558	WL w;
559	int signum;	670	int signum;
560		671
561	#ifdef WIN32
562	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563	#else
564	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
565	#endif
566	gotsig = 0;	673	gotsig = 0;
567		674
568	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
569	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
570	{	677	ev_feed_signal_event (EV_A_ signum + 1);
571	signals [signum].gotsig = 0;	678	}
572		679
573	for (w = signals [signum].head; w; w = w->next)	680	static void
574	event (EV_A_ (W)w, EV_SIGNAL);	681	fd_intern (int fd)
575	}	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
576	}	690	}
577		691
578	static void	692	static void
579	siginit (EV_P)	693	siginit (EV_P)
580	{	694	{
581	#ifndef WIN32	695	fd_intern (sigpipe [0]);
582	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
583	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
584
585	/* rather than sort out wether we really need nb, set it */
586	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
587	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
588	#endif
589		697
590	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
591	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
592	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
593	}	701	}
594		702
595	/*****************************************************************************/	703	/*****************************************************************************/
596		704
597	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
598		706
599	#ifndef WIN32	707	#ifndef _WIN32
600		708
601	static struct ev_signal childev;	709	static struct ev_signal childev;
602		710
603	#ifndef WCONTINUED	711	#ifndef WCONTINUED
604	# define WCONTINUED 0	712	# define WCONTINUED 0
…		…
613	if (w->pid == pid \|\| !w->pid)	721	if (w->pid == pid \|\| !w->pid)
614	{	722	{
615	ev_priority (w) = ev_priority (sw); /* need to do it now */	723	ev_priority (w) = ev_priority (sw); /* need to do it now */
616	w->rpid = pid;	724	w->rpid = pid;
617	w->rstatus = status;	725	w->rstatus = status;
618	event (EV_A_ (W)w, EV_CHILD);	726	ev_feed_event (EV_A_ (W)w, EV_CHILD);
619	}	727	}
620	}	728	}
621		729
622	static void	730	static void
623	childcb (EV_P_ struct ev_signal *sw, int revents)	731	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
625	int pid, status;	733	int pid, status;
626		734
627	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	735	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
628	{	736	{
629	/* make sure we are called again until all childs have been reaped */	737	/* make sure we are called again until all childs have been reaped */
630	event (EV_A_ (W)sw, EV_SIGNAL);	738	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
631		739
632	child_reap (EV_A_ sw, pid, pid, status);	740	child_reap (EV_A_ sw, pid, pid, status);
633	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	741	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
634	}	742	}
635	}	743	}
636		744
637	#endif	745	#endif
638		746
639	/*****************************************************************************/	747	/*****************************************************************************/
640		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
641	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
642	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
643	#endif	754	#endif
644	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
645	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
665		776
666	/* 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 */
667	static int	778	static int
668	enable_secure (void)	779	enable_secure (void)
669	{	780	{
670	#ifdef WIN32	781	#ifdef _WIN32
671	return 0;	782	return 0;
672	#else	783	#else
673	return getuid () != geteuid ()	784	return getuid () != geteuid ()
674	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
675	#endif	786	#endif
676	}	787	}
677		788
678	int	789	unsigned int
679	ev_method (EV_P)	790	ev_method (EV_P)
680	{	791	{
681	return method;	792	return method;
682	}	793	}
683		794
684	static void	795	static void
685	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
686	{	797	{
687	if (!method)	798	if (!method)
688	{	799	{
689	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
690	{	801	{
…		…
692	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
693	have_monotonic = 1;	804	have_monotonic = 1;
694	}	805	}
695	#endif	806	#endif
696		807
697	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
698	mn_now = get_clock ();	809	mn_now = get_clock ();
699	now_floor = mn_now;	810	now_floor = mn_now;
700	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
701		812
702	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
703	if (!enable_secure () && getenv ("LIBEV_METHODS"))
704	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
705	else	815
706	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
707		818
708	method = 0;	819	method = 0;
709	#if EV_USE_WIN32	820	#if EV_USE_PORT
710	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
711	#endif	822	#endif
712	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
713	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
714	#endif	825	#endif
715	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
716	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
717	#endif	828	#endif
718	#if EV_USE_POLL	829	#if EV_USE_POLL
719	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
720	#endif	831	#endif
721	#if EV_USE_SELECT	832	#if EV_USE_SELECT
722	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
723	#endif	834	#endif
724		835
725	ev_watcher_init (&sigev, sigcb);	836	ev_init (&sigev, sigcb);
726	ev_set_priority (&sigev, EV_MAXPRI);	837	ev_set_priority (&sigev, EV_MAXPRI);
727	}	838	}
728	}	839	}
729		840
730	void	841	static void
731	loop_destroy (EV_P)	842	loop_destroy (EV_P)
732	{	843	{
733	int i;	844	int i;
734		845
735	#if EV_USE_WIN32	846	#if EV_USE_PORT
736	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
737	#endif	848	#endif
738	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
739	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
740	#endif	851	#endif
741	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
…		…
750		861
751	for (i = NUMPRI; i--; )	862	for (i = NUMPRI; i--; )
752	array_free (pending, [i]);	863	array_free (pending, [i]);
753		864
754	/* have to use the microsoft-never-gets-it-right macro */	865	/* have to use the microsoft-never-gets-it-right macro */
755	array_free_microshit (fdchange);	866	array_free (fdchange, EMPTY0);
756	array_free_microshit (timer);	867	array_free (timer, EMPTY0);
757	array_free_microshit (periodic);	868	#if EV_PERIODICS
758	array_free_microshit (idle);	869	array_free (periodic, EMPTY0);
759	array_free_microshit (prepare);	870	#endif
760	array_free_microshit (check);	871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
761		874
762	method = 0;	875	method = 0;
763	}	876	}
764		877
765	static void	878	static void
766	loop_fork (EV_P)	879	loop_fork (EV_P)
767	{	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
768	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
769	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
770	#endif
771	#if EV_USE_KQUEUE
772	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
773	#endif	889	#endif
774		890
775	if (ev_is_active (&sigev))	891	if (ev_is_active (&sigev))
776	{	892	{
777	/* default loop */	893	/* default loop */
…		…
790	postfork = 0;	906	postfork = 0;
791	}	907	}
792		908
793	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
794	struct ev_loop *	910	struct ev_loop *
795	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
796	{	912	{
797	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));
798		914
799	memset (loop, 0, sizeof (struct ev_loop));	915	memset (loop, 0, sizeof (struct ev_loop));
800		916
801	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
802		918
803	if (ev_method (EV_A))	919	if (ev_method (EV_A))
804	return loop;	920	return loop;
805		921
806	return 0;	922	return 0;
…		…
820	}	936	}
821		937
822	#endif	938	#endif
823		939
824	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
825	struct ev_loop default_loop_struct;
826	static struct ev_loop *default_loop;
827
828	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
829	#else	943	#else
830	static int default_loop;
831
832	int	944	int
		945	ev_default_loop (unsigned int flags)
833	#endif	946	#endif
834	ev_default_loop (int methods)
835	{	947	{
836	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
837	if (pipe (sigpipe))	949	if (pipe (sigpipe))
838	return 0;	950	return 0;
839		951
840	if (!default_loop)	952	if (!ev_default_loop_ptr)
841	{	953	{
842	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
843	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
844	#else	956	#else
845	default_loop = 1;	957	ev_default_loop_ptr = 1;
846	#endif	958	#endif
847		959
848	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
849		961
850	if (ev_method (EV_A))	962	if (ev_method (EV_A))
851	{	963	{
852	siginit (EV_A);	964	siginit (EV_A);
853		965
854	#ifndef WIN32	966	#ifndef _WIN32
855	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
856	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
857	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
858	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
859	#endif	971	#endif
860	}	972	}
861	else	973	else
862	default_loop = 0;	974	ev_default_loop_ptr = 0;
863	}	975	}
864		976
865	return default_loop;	977	return ev_default_loop_ptr;
866	}	978	}
867		979
868	void	980	void
869	ev_default_destroy (void)	981	ev_default_destroy (void)
870	{	982	{
871	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
872	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
873	#endif	985	#endif
874		986
875	#ifndef WIN32	987	#ifndef _WIN32
876	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
877	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
878	#endif	990	#endif
879		991
880	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
…		…
888		1000
889	void	1001	void
890	ev_default_fork (void)	1002	ev_default_fork (void)
891	{	1003	{
892	#if EV_MULTIPLICITY	1004	#if EV_MULTIPLICITY
893	struct ev_loop *loop = default_loop;	1005	struct ev_loop *loop = ev_default_loop_ptr;
894	#endif	1006	#endif
895		1007
896	if (method)	1008	if (method)
897	postfork = 1;	1009	postfork = 1;
898	}	1010	}
…		…
909	return 1;	1021	return 1;
910		1022
911	return 0;	1023	return 0;
912	}	1024	}
913		1025
914	static void	1026	inline void
915	call_pending (EV_P)	1027	call_pending (EV_P)
916	{	1028	{
917	int pri;	1029	int pri;
918		1030
919	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
920	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
921	{	1033	{
922	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
923		1035
924	if (p->w)	1036	if (expect_true (p->w))
925	{	1037	{
926	p->w->pending = 0;	1038	p->w->pending = 0;
927	p->w->cb (EV_A_ p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
928	}	1040	}
929	}	1041	}
930	}	1042	}
931		1043
932	static void	1044	inline void
933	timers_reify (EV_P)	1045	timers_reify (EV_P)
934	{	1046	{
935	while (timercnt && ((WT)timers [0])->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
936	{	1048	{
937	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
…		…
940		1052
941	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
942	if (w->repeat)	1054	if (w->repeat)
943	{	1055	{
944	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
945	((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
946	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
947	}	1063	}
948	else	1064	else
949	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
950		1066
951	event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
952	}	1068	}
953	}	1069	}
954		1070
955	static void	1071	#if EV_PERIODICS
		1072	inline void
956	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
957	{	1074	{
958	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
959	{	1076	{
960	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
961		1078
962	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
963		1080
964	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
965	if (w->reschedule_cb)	1082	if (w->reschedule_cb)
966	{	1083	{
967	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);
968
969	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));
970	downheap ((WT *)periodics, periodiccnt, 0);	1086	downheap ((WT *)periodics, periodiccnt, 0);
971	}	1087	}
972	else if (w->interval)	1088	else if (w->interval)
973	{	1089	{
974	((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;
975	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));
976	downheap ((WT *)periodics, periodiccnt, 0);	1092	downheap ((WT *)periodics, periodiccnt, 0);
977	}	1093	}
978	else	1094	else
979	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1095	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
980		1096
981	event (EV_A_ (W)w, EV_PERIODIC);	1097	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
982	}	1098	}
983	}	1099	}
984		1100
985	static void	1101	static void
986	periodics_reschedule (EV_P)	1102	periodics_reschedule (EV_P)
…		…
991	for (i = 0; i < periodiccnt; ++i)	1107	for (i = 0; i < periodiccnt; ++i)
992	{	1108	{
993	struct ev_periodic *w = periodics [i];	1109	struct ev_periodic *w = periodics [i];
994		1110
995	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
996	((WT)w)->at = w->reschedule_cb (w, rt_now);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
997	else if (w->interval)	1113	else if (w->interval)
998	((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;
999	}	1115	}
1000		1116
1001	/* now rebuild the heap */	1117	/* now rebuild the heap */
1002	for (i = periodiccnt >> 1; i--; )	1118	for (i = periodiccnt >> 1; i--; )
1003	downheap ((WT *)periodics, periodiccnt, i);	1119	downheap ((WT *)periodics, periodiccnt, i);
1004	}	1120	}
		1121	#endif
1005		1122
1006	inline int	1123	inline int
1007	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
1008	{	1125	{
1009	mn_now = get_clock ();	1126	mn_now = get_clock ();
1010		1127
1011	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1128	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1012	{	1129	{
1013	rt_now = rtmn_diff + mn_now;	1130	ev_rt_now = rtmn_diff + mn_now;
1014	return 0;	1131	return 0;
1015	}	1132	}
1016	else	1133	else
1017	{	1134	{
1018	now_floor = mn_now;	1135	now_floor = mn_now;
1019	rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
1020	return 1;	1137	return 1;
1021	}	1138	}
1022	}	1139	}
1023		1140
1024	static void	1141	inline void
1025	time_update (EV_P)	1142	time_update (EV_P)
1026	{	1143	{
1027	int i;	1144	int i;
1028		1145
1029	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
1033	{	1150	{
1034	ev_tstamp odiff = rtmn_diff;	1151	ev_tstamp odiff = rtmn_diff;
1035		1152
1036	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 */
1037	{	1154	{
1038	rtmn_diff = rt_now - mn_now;	1155	rtmn_diff = ev_rt_now - mn_now;
1039		1156
1040	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1157	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1041	return; /* all is well */	1158	return; /* all is well */
1042		1159
1043	rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
1044	mn_now = get_clock ();	1161	mn_now = get_clock ();
1045	now_floor = mn_now;	1162	now_floor = mn_now;
1046	}	1163	}
1047		1164
		1165	# if EV_PERIODICS
1048	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
1049	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
1050	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1051	}	1170	}
1052	}	1171	}
1053	else	1172	else
1054	#endif	1173	#endif
1055	{	1174	{
1056	rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
1057		1176
1058	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))
1059	{	1178	{
		1179	#if EV_PERIODICS
1060	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
1061		1182
1062	/* 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 */
1063	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
1064	((WT)timers [i])->at += rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
1065	}	1186	}
1066		1187
1067	mn_now = rt_now;	1188	mn_now = ev_rt_now;
1068	}	1189	}
1069	}	1190	}
1070		1191
1071	void	1192	void
1072	ev_ref (EV_P)	1193	ev_ref (EV_P)
…		…
1086	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
1087	{	1208	{
1088	double block;	1209	double block;
1089	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1090		1211
1091	do	1212	while (activecnt)
1092	{	1213	{
1093	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
1094	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
1095	{	1216	{
1096	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1112	if (expect_true (have_monotonic))	1233	if (expect_true (have_monotonic))
1113	time_update_monotonic (EV_A);	1234	time_update_monotonic (EV_A);
1114	else	1235	else
1115	#endif	1236	#endif
1116	{	1237	{
1117	rt_now = ev_time ();	1238	ev_rt_now = ev_time ();
1118	mn_now = rt_now;	1239	mn_now = ev_rt_now;
1119	}	1240	}
1120		1241
1121	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1242	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1122	block = 0.;	1243	block = 0.;
1123	else	1244	else
…		…
1128	{	1249	{
1129	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1130	if (block > to) block = to;	1251	if (block > to) block = to;
1131	}	1252	}
1132		1253
		1254	#if EV_PERIODICS
1133	if (periodiccnt)	1255	if (periodiccnt)
1134	{	1256	{
1135	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1136	if (block > to) block = to;	1258	if (block > to) block = to;
1137	}	1259	}
		1260	#endif
1138		1261
1139	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
1140	}	1263	}
1141		1264
1142	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
1143		1266
1144	/* update rt_now, do magic */	1267	/* update ev_rt_now, do magic */
1145	time_update (EV_A);	1268	time_update (EV_A);
1146		1269
1147	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
1148	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
1149	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
1150		1275
1151	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
1152	if (idlecnt && !any_pending (EV_A))	1277	if (idlecnt && !any_pending (EV_A))
1153	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1154		1279
1155	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
1156	if (checkcnt)	1281	if (expect_false (checkcnt))
1157	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1158		1283
1159	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
1160	}	1288	}
1161	while (activecnt && !loop_done);
1162		1289
1163	if (loop_done != 2)	1290	if (loop_done != 2)
1164	loop_done = 0;	1291	loop_done = 0;
1165	}	1292	}
1166		1293
…		…
1226	void	1353	void
1227	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1228	{	1355	{
1229	int fd = w->fd;	1356	int fd = w->fd;
1230		1357
1231	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1232	return;	1359	return;
1233		1360
1234	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1235		1362
1236	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
…		…
1242		1369
1243	void	1370	void
1244	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1245	{	1372	{
1246	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1247	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1248	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1249		1378
1250	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1251	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1252		1381
1253	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1254	}	1383	}
1255		1384
1256	void	1385	void
1257	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1258	{	1387	{
1259	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1260	return;	1389	return;
1261		1390
1262	((WT)w)->at += mn_now;	1391	((WT)w)->at += mn_now;
1263		1392
1264	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.));
1265		1394
1266	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1267	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1268	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1269	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
1270		1399
1271	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1272	}	1401	}
1273		1402
1274	void	1403	void
1275	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1276	{	1405	{
1277	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1278	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1279	return;	1408	return;
1280		1409
1281	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1282		1411
1283	if (((W)w)->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1284	{	1413	{
1285	timers [((W)w)->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1286	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1287	}	1416	}
1288		1417
1289	((WT)w)->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1290		1419
1291	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1292	}	1421	}
1293		1422
1294	void	1423	void
…		…
1297	if (ev_is_active (w))	1426	if (ev_is_active (w))
1298	{	1427	{
1299	if (w->repeat)	1428	if (w->repeat)
1300	{	1429	{
1301	((WT)w)->at = mn_now + w->repeat;	1430	((WT)w)->at = mn_now + w->repeat;
1302	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1303	}	1432	}
1304	else	1433	else
1305	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1306	}	1435	}
1307	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1308	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1309	}	1441	}
1310		1442
		1443	#if EV_PERIODICS
1311	void	1444	void
1312	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1313	{	1446	{
1314	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1315	return;	1448	return;
1316		1449
1317	if (w->reschedule_cb)	1450	if (w->reschedule_cb)
1318	((WT)w)->at = w->reschedule_cb (w, rt_now);	1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1319	else if (w->interval)	1452	else if (w->interval)
1320	{	1453	{
1321	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.));
1322	/* 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 */
1323	((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;
1324	}	1457	}
1325		1458
1326	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1327	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1328	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1329	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
1330		1463
1331	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1332	}	1465	}
1333		1466
1334	void	1467	void
1335	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1336	{	1469	{
1337	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1338	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1339	return;	1472	return;
1340		1473
1341	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1342		1475
1343	if (((W)w)->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1344	{	1477	{
1345	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1346	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1347	}	1480	}
1348		1481
1349	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1350	}	1483	}
1351		1484
1352	void	1485	void
1353	ev_periodic_again (EV_P_ struct ev_periodic *w)	1486	ev_periodic_again (EV_P_ struct ev_periodic *w)
1354	{	1487	{
		1488	/* TODO: use adjustheap and recalculation */
1355	ev_periodic_stop (EV_A_ w);	1489	ev_periodic_stop (EV_A_ w);
1356	ev_periodic_start (EV_A_ w);	1490	ev_periodic_start (EV_A_ w);
1357	}	1491	}
		1492	#endif
1358		1493
1359	void	1494	void
1360	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1361	{	1496	{
1362	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1363	return;	1498	return;
1364		1499
1365	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1366	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1367	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1368	}	1503	}
1369		1504
1370	void	1505	void
1371	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1372	{	1507	{
1373	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1374	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1375	return;	1510	return;
1376		1511
1377	idles [((W)w)->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1378	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1379	}	1514	}
1380		1515
1381	void	1516	void
1382	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1383	{	1518	{
1384	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1385	return;	1520	return;
1386		1521
1387	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1388	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1389	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1390	}	1525	}
1391		1526
1392	void	1527	void
1393	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1394	{	1529	{
1395	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1396	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1397	return;	1532	return;
1398		1533
1399	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1400	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1401	}	1536	}
1402		1537
1403	void	1538	void
1404	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1405	{	1540	{
1406	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1407	return;	1542	return;
1408		1543
1409	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1410	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1411	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1412	}	1547	}
1413		1548
1414	void	1549	void
1415	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1416	{	1551	{
1417	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1418	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1419	return;	1554	return;
1420		1555
1421	checks [((W)w)->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1422	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1423	}	1558	}
…		…
1428		1563
1429	void	1564	void
1430	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1431	{	1566	{
1432	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1433	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));
1434	#endif	1569	#endif
1435	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1436	return;	1571	return;
1437		1572
1438	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));
1439		1574
1440	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1441	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1442	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1443		1578
1444	if (!((WL)w)->next)	1579	if (!((WL)w)->next)
1445	{	1580	{
1446	#if WIN32	1581	#if _WIN32
1447	signal (w->signum, sighandler);	1582	signal (w->signum, sighandler);
1448	#else	1583	#else
1449	struct sigaction sa;	1584	struct sigaction sa;
1450	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1451	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
…		…
1457		1592
1458	void	1593	void
1459	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1460	{	1595	{
1461	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1462	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1463	return;	1598	return;
1464		1599
1465	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1466	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1467		1602
…		…
1471		1606
1472	void	1607	void
1473	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1474	{	1609	{
1475	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1476	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));
1477	#endif	1612	#endif
1478	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1479	return;	1614	return;
1480		1615
1481	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1482	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1483	}	1618	}
1484		1619
1485	void	1620	void
1486	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1487	{	1622	{
1488	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1489	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1490	return;	1625	return;
1491		1626
1492	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1493	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1494	}	1629	}
…		…
1531	void	1666	void
1532	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)
1533	{	1668	{
1534	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));
1535		1670
1536	if (!once)	1671	if (expect_false (!once))
		1672	{
1537	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1538	else	1674	return;
1539	{	1675	}
		1676
1540	once->cb = cb;	1677	once->cb = cb;
1541	once->arg = arg;	1678	once->arg = arg;
1542		1679
1543	ev_watcher_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1544	if (fd >= 0)	1681	if (fd >= 0)
1545	{	1682	{
1546	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1547	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1548	}	1685	}
1549		1686
1550	ev_watcher_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1551	if (timeout >= 0.)	1688	if (timeout >= 0.)
1552	{	1689	{
1553	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1554	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1555	}
1556	}	1692	}
1557	}	1693	}
1558		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.77 by root, Thu Nov 8 00:44:17 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 1.77 by root, Thu Nov 8 00:44:17 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC