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

Comparing libev/ev.c (file contents):
Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs.
Revision 1.118 by root, Fri Nov 16 01:33:54 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
53	# endif	66	# endif
54		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
…		…
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#include <signal.h>	82	#include <signal.h>
70		83
71	#ifndef WIN32	84	#ifndef _WIN32
72	# include <unistd.h>	85	# include <unistd.h>
73	# include <sys/time.h>	86	# include <sys/time.h>
74	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	93	# endif
		94	#endif
		95
76	/**/	96	/**/
77		97
78	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 1
80	#endif	100	#endif
81		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 1
		104	#endif
		105
82	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
		108	# define EV_SELECT_USE_FD_SET 1
84	#endif	109	#endif
85		110
86	#ifndef EV_USE_POLL	111	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	112	# ifdef _WIN32
		113	# define EV_USE_POLL 0
		114	# else
		115	# define EV_USE_POLL 1
		116	# endif
88	#endif	117	#endif
89		118
90	#ifndef EV_USE_EPOLL	119	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	120	# define EV_USE_EPOLL 0
92	#endif	121	#endif
93		122
94	#ifndef EV_USE_KQUEUE	123	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	124	# define EV_USE_KQUEUE 0
96	#endif	125	#endif
97		126
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	127	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
110	#endif	129	#endif
111		130
112	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
113		138
114	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
117	#endif	142	#endif
118		143
119	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
		147	#endif
		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
122	#endif	151	#endif
123		152
124	/**/	153	/**/
125		154
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	155	#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) */	156	#define MAX_BLOCKTIME 59.731 /* 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 */	157	#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 */	158	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
130		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
131	#include "ev.h"	163	# include "ev.h"
		164	#endif
132		165
133	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	168	# define inline inline
136	#else	169	#else
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
143		176
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
147	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
150		186
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		188
		189	#ifdef _WIN32
153	#include "ev_win32.c"	190	# include "ev_win32.c"
		191	#endif
154		192
155	/*****************************************************************************/	193	/*****************************************************************************/
156		194
157	static void (syserr_cb)(const char msg);	195	static void (syserr_cb)(const char msg);
158		196
…		…
205	typedef struct	243	typedef struct
206	{	244	{
207	WL head;	245	WL head;
208	unsigned char events;	246	unsigned char events;
209	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
210	} ANFD;	251	} ANFD;
211		252
212	typedef struct	253	typedef struct
213	{	254	{
214	W w;	255	W w;
215	int events;	256	int events;
216	} ANPENDING;	257	} ANPENDING;
217		258
218	#if EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
219		260
220	struct ev_loop	261	struct ev_loop
221	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	266	#include "ev_vars.h"
224	};
225	# undef VAR	267	#undef VAR
		268	};
226	# include "ev_wrap.h"	269	#include "ev_wrap.h"
		270
		271	static struct ev_loop default_loop_struct;
		272	struct ev_loop *ev_default_loop_ptr;
227		273
228	#else	274	#else
229		275
		276	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	278	#include "ev_vars.h"
232	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
233		282
234	#endif	283	#endif
235		284
236	/*****************************************************************************/	285	/*****************************************************************************/
237		286
238	inline ev_tstamp	287	ev_tstamp
239	ev_time (void)	288	ev_time (void)
240	{	289	{
241	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
242	struct timespec ts;	291	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	311	#endif
263		312
264	return ev_time ();	313	return ev_time ();
265	}	314	}
266		315
		316	#if EV_MULTIPLICITY
267	ev_tstamp	317	ev_tstamp
268	ev_now (EV_P)	318	ev_now (EV_P)
269	{	319	{
270	return rt_now;	320	return ev_rt_now;
271	}	321	}
		322	#endif
272		323
273	#define array_roundsize(base,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		325
275	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
277	{ \	328	{ \
278	int newcnt = cur; \	329	int newcnt = cur; \
279	do \	330	do \
280	{ \	331	{ \
281	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
282	} \	333	} \
283	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
284	\	335	\
285	base = ev_realloc (base, sizeof (base) (newcnt)); \	336	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
286	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
287	cur = newcnt; \	338	cur = newcnt; \
288	}	339	}
289		340
290	#define array_slim(stem) \	341	#define array_slim(type,stem) \
291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	342	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
292	{ \	343	{ \
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	344	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = ev_realloc (base, sizeof (base) (stem ## max)); \	345	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	347	}
297
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		348
303	#define array_free(stem, idx) \	349	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	350	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		351
306	/*****************************************************************************/	352	/*****************************************************************************/
…		…
316		362
317	++base;	363	++base;
318	}	364	}
319	}	365	}
320		366
321	static void	367	void
322	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
323	{	369	{
		370	W w_ = (W)w;
		371
324	if (w->pending)	372	if (w_->pending)
325	{	373	{
326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
327	return;	375	return;
328	}	376	}
329		377
330	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
331	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
332	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334	}	382	}
335		383
336	static void	384	static void
337	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
338	{	386	{
339	int i;	387	int i;
340		388
341	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
342	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
343	}	391	}
344		392
345	static void	393	inline void
346	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
347	{	395	{
348	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
349	struct ev_io *w;	397	struct ev_io *w;
350		398
351	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	399	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
352	{	400	{
353	int ev = w->events & events;	401	int ev = w->events & revents;
354		402
355	if (ev)	403	if (ev)
356	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
357	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
358	}	412	}
359		413
360	/*****************************************************************************/	414	/*****************************************************************************/
361		415
362	static void	416	static void
…		…
373	int events = 0;	427	int events = 0;
374		428
375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	429	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
376	events \|= w->events;	430	events \|= w->events;
377		431
		432	#if EV_SELECT_IS_WINSOCKET
		433	if (events)
		434	{
		435	unsigned long argp;
		436	anfd->handle = _get_osfhandle (fd);
		437	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		438	}
		439	#endif
		440
378	anfd->reify = 0;	441	anfd->reify = 0;
379		442
380	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
381	anfd->events = events;	444	anfd->events = events;
382	}	445	}
…		…
391	return;	454	return;
392		455
393	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
394		457
395	++fdchangecnt;	458	++fdchangecnt;
396	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
398	}	461	}
399		462
400	static void	463	static void
401	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
403	struct ev_io *w;	466	struct ev_io *w;
404		467
405	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
406	{	469	{
407	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	471	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
409	}	472	}
410	}	473	}
411		474
412	static int	475	static int
413	fd_valid (int fd)	476	fd_valid (int fd)
414	{	477	{
415	#ifdef WIN32	478	#ifdef _WIN32
416	return !!win32_get_osfhandle (fd);	479	return _get_osfhandle (fd) != -1;
417	#else	480	#else
418	return fcntl (fd, F_GETFD) != -1;	481	return fcntl (fd, F_GETFD) != -1;
419	#endif	482	#endif
420	}	483	}
421		484
…		…
501		564
502	heap [k] = w;	565	heap [k] = w;
503	((W)heap [k])->active = k + 1;	566	((W)heap [k])->active = k + 1;
504	}	567	}
505		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
		574	}
		575
506	/*****************************************************************************/	576	/*****************************************************************************/
507		577
508	typedef struct	578	typedef struct
509	{	579	{
510	WL head;	580	WL head;
…		…
531	}	601	}
532		602
533	static void	603	static void
534	sighandler (int signum)	604	sighandler (int signum)
535	{	605	{
536	#if WIN32	606	#if _WIN32
537	signal (signum, sighandler);	607	signal (signum, sighandler);
538	#endif	608	#endif
539		609
540	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
541		611
…		…
546	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
547	errno = old_errno;	617	errno = old_errno;
548	}	618	}
549	}	619	}
550		620
		621	void
		622	ev_feed_signal_event (EV_P_ int signum)
		623	{
		624	WL w;
		625
		626	#if EV_MULTIPLICITY
		627	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		628	#endif
		629
		630	--signum;
		631
		632	if (signum < 0 \|\| signum >= signalmax)
		633	return;
		634
		635	signals [signum].gotsig = 0;
		636
		637	for (w = signals [signum].head; w; w = w->next)
		638	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		639	}
		640
551	static void	641	static void
552	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
553	{	643	{
554	WL w;
555	int signum;	644	int signum;
556		645
557	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
558	gotsig = 0;	647	gotsig = 0;
559		648
560	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
561	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
562	{	651	ev_feed_signal_event (EV_A_ signum + 1);
563	signals [signum].gotsig = 0;	652	}
564		653
565	for (w = signals [signum].head; w; w = w->next)	654	inline void
566	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
567	}	656	{
		657	#ifdef _WIN32
		658	int arg = 1;
		659	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		660	#else
		661	fcntl (fd, F_SETFD, FD_CLOEXEC);
		662	fcntl (fd, F_SETFL, O_NONBLOCK);
		663	#endif
568	}	664	}
569		665
570	static void	666	static void
571	siginit (EV_P)	667	siginit (EV_P)
572	{	668	{
573	#ifndef WIN32	669	fd_intern (sigpipe [0]);
574	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
575	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
576
577	/* rather than sort out wether we really need nb, set it */
578	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
579	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
580	#endif
581		671
582	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
583	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
584	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
585	}	675	}
586		676
587	/*****************************************************************************/	677	/*****************************************************************************/
588		678
589	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
590		680
591	#ifndef WIN32	681	#ifndef _WIN32
592		682
593	static struct ev_signal childev;	683	static struct ev_signal childev;
594		684
595	#ifndef WCONTINUED	685	#ifndef WCONTINUED
596	# define WCONTINUED 0	686	# define WCONTINUED 0
…		…
605	if (w->pid == pid \|\| !w->pid)	695	if (w->pid == pid \|\| !w->pid)
606	{	696	{
607	ev_priority (w) = ev_priority (sw); /* need to do it now */	697	ev_priority (w) = ev_priority (sw); /* need to do it now */
608	w->rpid = pid;	698	w->rpid = pid;
609	w->rstatus = status;	699	w->rstatus = status;
610	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
611	}	701	}
612	}	702	}
613		703
614	static void	704	static void
615	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
617	int pid, status;	707	int pid, status;
618		708
619	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
620	{	710	{
621	/* make sure we are called again until all childs have been reaped */	711	/* make sure we are called again until all childs have been reaped */
622	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
623		713
624	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
625	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	715	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
626	}	716	}
627	}	717	}
628		718
629	#endif	719	#endif
630		720
631	/*****************************************************************************/	721	/*****************************************************************************/
632		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
633	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
634	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
635	#endif	728	#endif
636	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
637	# include "ev_epoll.c"	730	# include "ev_epoll.c"
…		…
657		750
658	/* return true if we are running with elevated privileges and should ignore env variables */	751	/* return true if we are running with elevated privileges and should ignore env variables */
659	static int	752	static int
660	enable_secure (void)	753	enable_secure (void)
661	{	754	{
662	#ifdef WIN32	755	#ifdef _WIN32
663	return 0;	756	return 0;
664	#else	757	#else
665	return getuid () != geteuid ()	758	return getuid () != geteuid ()
666	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
667	#endif	760	#endif
668	}	761	}
669		762
670	int	763	unsigned int
671	ev_method (EV_P)	764	ev_method (EV_P)
672	{	765	{
673	return method;	766	return method;
674	}	767	}
675		768
676	static void	769	static void
677	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
678	{	771	{
679	if (!method)	772	if (!method)
680	{	773	{
681	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
682	{	775	{
…		…
684	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
685	have_monotonic = 1;	778	have_monotonic = 1;
686	}	779	}
687	#endif	780	#endif
688		781
689	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
690	mn_now = get_clock ();	783	mn_now = get_clock ();
691	now_floor = mn_now;	784	now_floor = mn_now;
692	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
693		786
694	if (methods == EVMETHOD_AUTO)	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
695	if (!enable_secure () && getenv ("LIBEV_METHODS"))
696	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
697	else	789
698	methods = EVMETHOD_ANY;	790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
699		792
700	method = 0;	793	method = 0;
701	#if EV_USE_WIN32	794	#if EV_USE_PORT
702	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
703	#endif	796	#endif
704	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
705	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
706	#endif	799	#endif
707	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
708	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
709	#endif	802	#endif
710	#if EV_USE_POLL	803	#if EV_USE_POLL
711	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
712	#endif	805	#endif
713	#if EV_USE_SELECT	806	#if EV_USE_SELECT
714	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
715	#endif	808	#endif
716		809
717	ev_watcher_init (&sigev, sigcb);	810	ev_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);	811	ev_set_priority (&sigev, EV_MAXPRI);
719	}	812	}
720	}	813	}
721		814
722	void	815	void
723	loop_destroy (EV_P)	816	loop_destroy (EV_P)
724	{	817	{
725	int i;	818	int i;
726		819
727	#if EV_USE_WIN32	820	#if EV_USE_PORT
728	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
729	#endif	822	#endif
730	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
731	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
732	#endif	825	#endif
733	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
…		…
742		835
743	for (i = NUMPRI; i--; )	836	for (i = NUMPRI; i--; )
744	array_free (pending, [i]);	837	array_free (pending, [i]);
745		838
746	/* have to use the microsoft-never-gets-it-right macro */	839	/* have to use the microsoft-never-gets-it-right macro */
747	array_free_microshit (fdchange);	840	array_free (fdchange, EMPTY0);
748	array_free_microshit (timer);	841	array_free (timer, EMPTY0);
749	array_free_microshit (periodic);	842	#if EV_PERIODICS
750	array_free_microshit (idle);	843	array_free (periodic, EMPTY0);
751	array_free_microshit (prepare);	844	#endif
752	array_free_microshit (check);	845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
753		848
754	method = 0;	849	method = 0;
755	}	850	}
756		851
757	static void	852	static void
758	loop_fork (EV_P)	853	loop_fork (EV_P)
759	{	854	{
		855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		857	#endif
		858	#if EV_USE_KQUEUE
		859	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		860	#endif
760	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
761	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
762	#endif
763	#if EV_USE_KQUEUE
764	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
765	#endif	863	#endif
766		864
767	if (ev_is_active (&sigev))	865	if (ev_is_active (&sigev))
768	{	866	{
769	/* default loop */	867	/* default loop */
…		…
782	postfork = 0;	880	postfork = 0;
783	}	881	}
784		882
785	#if EV_MULTIPLICITY	883	#if EV_MULTIPLICITY
786	struct ev_loop *	884	struct ev_loop *
787	ev_loop_new (int methods)	885	ev_loop_new (unsigned int flags)
788	{	886	{
789	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	887	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
790		888
791	memset (loop, 0, sizeof (struct ev_loop));	889	memset (loop, 0, sizeof (struct ev_loop));
792		890
793	loop_init (EV_A_ methods);	891	loop_init (EV_A_ flags);
794		892
795	if (ev_method (EV_A))	893	if (ev_method (EV_A))
796	return loop;	894	return loop;
797		895
798	return 0;	896	return 0;
…		…
812	}	910	}
813		911
814	#endif	912	#endif
815		913
816	#if EV_MULTIPLICITY	914	#if EV_MULTIPLICITY
817	struct ev_loop default_loop_struct;
818	static struct ev_loop *default_loop;
819
820	struct ev_loop *	915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
821	#else	917	#else
822	static int default_loop;
823
824	int	918	int
		919	ev_default_loop (unsigned int flags)
825	#endif	920	#endif
826	ev_default_loop (int methods)
827	{	921	{
828	if (sigpipe [0] == sigpipe [1])	922	if (sigpipe [0] == sigpipe [1])
829	if (pipe (sigpipe))	923	if (pipe (sigpipe))
830	return 0;	924	return 0;
831		925
832	if (!default_loop)	926	if (!ev_default_loop_ptr)
833	{	927	{
834	#if EV_MULTIPLICITY	928	#if EV_MULTIPLICITY
835	struct ev_loop *loop = default_loop = &default_loop_struct;	929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
836	#else	930	#else
837	default_loop = 1;	931	ev_default_loop_ptr = 1;
838	#endif	932	#endif
839		933
840	loop_init (EV_A_ methods);	934	loop_init (EV_A_ flags);
841		935
842	if (ev_method (EV_A))	936	if (ev_method (EV_A))
843	{	937	{
844	siginit (EV_A);	938	siginit (EV_A);
845		939
846	#ifndef WIN32	940	#ifndef _WIN32
847	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
848	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
849	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
850	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
851	#endif	945	#endif
852	}	946	}
853	else	947	else
854	default_loop = 0;	948	ev_default_loop_ptr = 0;
855	}	949	}
856		950
857	return default_loop;	951	return ev_default_loop_ptr;
858	}	952	}
859		953
860	void	954	void
861	ev_default_destroy (void)	955	ev_default_destroy (void)
862	{	956	{
863	#if EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
864	struct ev_loop *loop = default_loop;	958	struct ev_loop *loop = ev_default_loop_ptr;
865	#endif	959	#endif
866		960
867	#ifndef WIN32	961	#ifndef _WIN32
868	ev_ref (EV_A); /* child watcher */	962	ev_ref (EV_A); /* child watcher */
869	ev_signal_stop (EV_A_ &childev);	963	ev_signal_stop (EV_A_ &childev);
870	#endif	964	#endif
871		965
872	ev_ref (EV_A); /* signal watcher */	966	ev_ref (EV_A); /* signal watcher */
…		…
880		974
881	void	975	void
882	ev_default_fork (void)	976	ev_default_fork (void)
883	{	977	{
884	#if EV_MULTIPLICITY	978	#if EV_MULTIPLICITY
885	struct ev_loop *loop = default_loop;	979	struct ev_loop *loop = ev_default_loop_ptr;
886	#endif	980	#endif
887		981
888	if (method)	982	if (method)
889	postfork = 1;	983	postfork = 1;
890	}	984	}
891		985
892	/*****************************************************************************/	986	/*****************************************************************************/
		987
		988	static int
		989	any_pending (EV_P)
		990	{
		991	int pri;
		992
		993	for (pri = NUMPRI; pri--; )
		994	if (pendingcnt [pri])
		995	return 1;
		996
		997	return 0;
		998	}
893		999
894	static void	1000	static void
895	call_pending (EV_P)	1001	call_pending (EV_P)
896	{	1002	{
897	int pri;	1003	int pri;
…		…
902	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
903		1009
904	if (p->w)	1010	if (p->w)
905	{	1011	{
906	p->w->pending = 0;	1012	p->w->pending = 0;
907	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
908	}	1014	}
909	}	1015	}
910	}	1016	}
911		1017
912	static void	1018	static void
…		…
920		1026
921	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
922	if (w->repeat)	1028	if (w->repeat)
923	{	1029	{
924	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1030	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1031
925	((WT)w)->at = mn_now + w->repeat;	1032	((WT)w)->at += w->repeat;
		1033	if (((WT)w)->at < mn_now)
		1034	((WT)w)->at = mn_now;
		1035
926	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
927	}	1037	}
928	else	1038	else
929	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
930		1040
931	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
932	}	1042	}
933	}	1043	}
934		1044
		1045	#if EV_PERIODICS
935	static void	1046	static void
936	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
937	{	1048	{
938	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
939	{	1050	{
940	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
941		1052
942	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
943		1054
944	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
945	if (w->interval)	1056	if (w->reschedule_cb)
946	{	1057	{
		1058	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1059	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1060	downheap ((WT *)periodics, periodiccnt, 0);
		1061	}
		1062	else if (w->interval)
		1063	{
947	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1064	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
948	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1065	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
949	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
950	}	1067	}
951	else	1068	else
952	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
953		1070
954	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
955	}	1072	}
956	}	1073	}
957		1074
958	static void	1075	static void
959	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
963	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
964	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
965	{	1082	{
966	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
967		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
968	if (w->interval)	1087	else if (w->interval)
969	{
970	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1088	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
971
972	if (fabs (diff) >= 1e-4)
973	{
974	ev_periodic_stop (EV_A_ w);
975	ev_periodic_start (EV_A_ w);
976
977	i = 0; /* restart loop, inefficient, but time jumps should be rare */
978	}
979	}
980	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
981	}	1094	}
		1095	#endif
982		1096
983	inline int	1097	inline int
984	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
985	{	1099	{
986	mn_now = get_clock ();	1100	mn_now = get_clock ();
987		1101
988	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
989	{	1103	{
990	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
991	return 0;	1105	return 0;
992	}	1106	}
993	else	1107	else
994	{	1108	{
995	now_floor = mn_now;	1109	now_floor = mn_now;
996	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
997	return 1;	1111	return 1;
998	}	1112	}
999	}	1113	}
1000		1114
1001	static void	1115	static void
…		…
1010	{	1124	{
1011	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
1012		1126
1013	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1127	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1014	{	1128	{
1015	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
1016		1130
1017	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1018	return; /* all is well */	1132	return; /* all is well */
1019		1133
1020	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
1021	mn_now = get_clock ();	1135	mn_now = get_clock ();
1022	now_floor = mn_now;	1136	now_floor = mn_now;
1023	}	1137	}
1024		1138
		1139	# if EV_PERIODICS
1025	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
1026	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
1027	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1028	}	1144	}
1029	}	1145	}
1030	else	1146	else
1031	#endif	1147	#endif
1032	{	1148	{
1033	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
1034		1150
1035	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1151	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1036	{	1152	{
		1153	#if EV_PERIODICS
1037	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
1038		1156
1039	/* adjust timers. this is easy, as the offset is the same for all */	1157	/* adjust timers. this is easy, as the offset is the same for all */
1040	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
1041	((WT)timers [i])->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
1042	}	1160	}
1043		1161
1044	mn_now = rt_now;	1162	mn_now = ev_rt_now;
1045	}	1163	}
1046	}	1164	}
1047		1165
1048	void	1166	void
1049	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
1063	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
1064	{	1182	{
1065	double block;	1183	double block;
1066	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1067		1185
1068	do	1186	while (activecnt)
1069	{	1187	{
1070	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
1071	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
1072	{	1190	{
1073	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1081	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
1082	fd_reify (EV_A);	1200	fd_reify (EV_A);
1083		1201
1084	/* calculate blocking time */	1202	/* calculate blocking time */
1085		1203
1086	/* we only need this for !monotonic clockor timers, but as we basically	1204	/* we only need this for !monotonic clock or timers, but as we basically
1087	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
1088	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
1089	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
1090	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
1091	else	1209	else
1092	#endif	1210	#endif
1093	{	1211	{
1094	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
1095	mn_now = rt_now;	1213	mn_now = ev_rt_now;
1096	}	1214	}
1097		1215
1098	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1099	block = 0.;	1217	block = 0.;
1100	else	1218	else
…		…
1105	{	1223	{
1106	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1107	if (block > to) block = to;	1225	if (block > to) block = to;
1108	}	1226	}
1109		1227
		1228	#if EV_PERIODICS
1110	if (periodiccnt)	1229	if (periodiccnt)
1111	{	1230	{
1112	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1113	if (block > to) block = to;	1232	if (block > to) block = to;
1114	}	1233	}
		1234	#endif
1115		1235
1116	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
1117	}	1237	}
1118		1238
1119	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
1120		1240
1121	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
1122	time_update (EV_A);	1242	time_update (EV_A);
1123		1243
1124	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
1125	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
1126	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
1127		1249
1128	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
1129	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
1130	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1131		1253
1132	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
1133	if (checkcnt)	1255	if (checkcnt)
1134	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1135		1257
1136	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
1137	}	1262	}
1138	while (activecnt && !loop_done);
1139		1263
1140	if (loop_done != 2)	1264	if (loop_done != 2)
1141	loop_done = 0;	1265	loop_done = 0;
1142	}	1266	}
1143		1267
…		…
1209	return;	1333	return;
1210		1334
1211	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
1212		1336
1213	ev_start (EV_A_ (W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
1214	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1215	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1216		1340
1217	fd_change (EV_A_ fd);	1341	fd_change (EV_A_ fd);
1218	}	1342	}
1219		1343
…		…
1222	{	1346	{
1223	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
1224	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
1225	return;	1349	return;
1226		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
1227	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1228	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
1229		1355
1230	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
1231	}	1357	}
…		…
1239	((WT)w)->at += mn_now;	1365	((WT)w)->at += mn_now;
1240		1366
1241	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1367	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1242		1368
1243	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1244	array_needsize (timers, timermax, timercnt, (void));	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1245	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1246	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
1247		1373
1248	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1249	}	1375	}
…		…
1258	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1259		1385
1260	if (((W)w)->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1261	{	1387	{
1262	timers [((W)w)->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1263	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1264	}	1390	}
1265		1391
1266	((WT)w)->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1267		1393
1268	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1269	}	1395	}
1270		1396
1271	void	1397	void
…		…
1274	if (ev_is_active (w))	1400	if (ev_is_active (w))
1275	{	1401	{
1276	if (w->repeat)	1402	if (w->repeat)
1277	{	1403	{
1278	((WT)w)->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1279	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1280	}	1406	}
1281	else	1407	else
1282	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1283	}	1409	}
1284	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1285	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1286	}	1415	}
1287		1416
		1417	#if EV_PERIODICS
1288	void	1418	void
1289	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1290	{	1420	{
1291	if (ev_is_active (w))	1421	if (ev_is_active (w))
1292	return;	1422	return;
1293		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1294	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1428	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1295
1296	/* this formula differs from the one in periodic_reify because we do not always round up */	1429	/* this formula differs from the one in periodic_reify because we do not always round up */
1297	if (w->interval)
1298	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1430	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1431	}
1299		1432
1300	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1301	array_needsize (periodics, periodicmax, periodiccnt, (void));	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1302	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1303	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
1304		1437
1305	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1306	}	1439	}
…		…
1315	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1316		1449
1317	if (((W)w)->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1318	{	1451	{
1319	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1320	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1321	}	1454	}
1322		1455
1323	ev_stop (EV_A_ (W)w);	1456	ev_stop (EV_A_ (W)w);
1324	}	1457	}
1325		1458
1326	void	1459	void
		1460	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1461	{
		1462	/* TODO: use adjustheap and recalculation */
		1463	ev_periodic_stop (EV_A_ w);
		1464	ev_periodic_start (EV_A_ w);
		1465	}
		1466	#endif
		1467
		1468	void
1327	ev_idle_start (EV_P_ struct ev_idle *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1328	{	1470	{
1329	if (ev_is_active (w))	1471	if (ev_is_active (w))
1330	return;	1472	return;
1331		1473
1332	ev_start (EV_A_ (W)w, ++idlecnt);	1474	ev_start (EV_A_ (W)w, ++idlecnt);
1333	array_needsize (idles, idlemax, idlecnt, (void));	1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1334	idles [idlecnt - 1] = w;	1476	idles [idlecnt - 1] = w;
1335	}	1477	}
1336		1478
1337	void	1479	void
1338	ev_idle_stop (EV_P_ struct ev_idle *w)	1480	ev_idle_stop (EV_P_ struct ev_idle *w)
1339	{	1481	{
1340	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
1341	if (ev_is_active (w))	1483	if (!ev_is_active (w))
1342	return;	1484	return;
1343		1485
1344	idles [((W)w)->active - 1] = idles [--idlecnt];	1486	idles [((W)w)->active - 1] = idles [--idlecnt];
1345	ev_stop (EV_A_ (W)w);	1487	ev_stop (EV_A_ (W)w);
1346	}	1488	}
…		…
1350	{	1492	{
1351	if (ev_is_active (w))	1493	if (ev_is_active (w))
1352	return;	1494	return;
1353		1495
1354	ev_start (EV_A_ (W)w, ++preparecnt);	1496	ev_start (EV_A_ (W)w, ++preparecnt);
1355	array_needsize (prepares, preparemax, preparecnt, (void));	1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1356	prepares [preparecnt - 1] = w;	1498	prepares [preparecnt - 1] = w;
1357	}	1499	}
1358		1500
1359	void	1501	void
1360	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1361	{	1503	{
1362	ev_clear_pending (EV_A_ (W)w);	1504	ev_clear_pending (EV_A_ (W)w);
1363	if (ev_is_active (w))	1505	if (!ev_is_active (w))
1364	return;	1506	return;
1365		1507
1366	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1367	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1368	}	1510	}
…		…
1372	{	1514	{
1373	if (ev_is_active (w))	1515	if (ev_is_active (w))
1374	return;	1516	return;
1375		1517
1376	ev_start (EV_A_ (W)w, ++checkcnt);	1518	ev_start (EV_A_ (W)w, ++checkcnt);
1377	array_needsize (checks, checkmax, checkcnt, (void));	1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1378	checks [checkcnt - 1] = w;	1520	checks [checkcnt - 1] = w;
1379	}	1521	}
1380		1522
1381	void	1523	void
1382	ev_check_stop (EV_P_ struct ev_check *w)	1524	ev_check_stop (EV_P_ struct ev_check *w)
1383	{	1525	{
1384	ev_clear_pending (EV_A_ (W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1385	if (ev_is_active (w))	1527	if (!ev_is_active (w))
1386	return;	1528	return;
1387		1529
1388	checks [((W)w)->active - 1] = checks [--checkcnt];	1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1389	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1390	}	1532	}
…		…
1395		1537
1396	void	1538	void
1397	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1398	{	1540	{
1399	#if EV_MULTIPLICITY	1541	#if EV_MULTIPLICITY
1400	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1542	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1401	#endif	1543	#endif
1402	if (ev_is_active (w))	1544	if (ev_is_active (w))
1403	return;	1545	return;
1404		1546
1405	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1547	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1406		1548
1407	ev_start (EV_A_ (W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1408	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1409	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1410		1552
1411	if (!((WL)w)->next)	1553	if (!((WL)w)->next)
1412	{	1554	{
1413	#if WIN32	1555	#if _WIN32
1414	signal (w->signum, sighandler);	1556	signal (w->signum, sighandler);
1415	#else	1557	#else
1416	struct sigaction sa;	1558	struct sigaction sa;
1417	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1418	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
…		…
1438		1580
1439	void	1581	void
1440	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1441	{	1583	{
1442	#if EV_MULTIPLICITY	1584	#if EV_MULTIPLICITY
1443	assert (("child watchers are only supported in the default loop", loop == default_loop));	1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1444	#endif	1586	#endif
1445	if (ev_is_active (w))	1587	if (ev_is_active (w))
1446	return;	1588	return;
1447		1589
1448	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
…		…
1451		1593
1452	void	1594	void
1453	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1454	{	1596	{
1455	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1457	return;	1599	return;
1458		1600
1459	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1460	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1461	}	1603	}
…		…
1496	}	1638	}
1497		1639
1498	void	1640	void
1499	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1641	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1500	{	1642	{
1501	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1643	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1502		1644
1503	if (!once)	1645	if (!once)
1504	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1505	else	1647	else
1506	{	1648	{
1507	once->cb = cb;	1649	once->cb = cb;
1508	once->arg = arg;	1650	once->arg = arg;
1509		1651
1510	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1511	if (fd >= 0)	1653	if (fd >= 0)
1512	{	1654	{
1513	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1514	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1515	}	1657	}
1516		1658
1517	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1518	if (timeout >= 0.)	1660	if (timeout >= 0.)
1519	{	1661	{
1520	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1521	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1522	}	1664	}
1523	}	1665	}
1524	}	1666	}
1525		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs. Revision 1.118 by root, Fri Nov 16 01:33:54 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs.
Revision 1.118 by root, Fri Nov 16 01:33:54 2007 UTC