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

Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 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_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
…		…
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
122	#endif	147	#endif
123		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
		151	#endif
		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 59.743 /* 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 */	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 (MAX_BLOCKTIME 5.) /* 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
153	#if WIN32	189	#ifdef _WIN32
154	/* note: the comment below could not be substantiated, but what would I care */	190	# include "ev_win32.c"
155	/* MSDN says this is required to handle SIGFPE */
156	volatile double SIGFPE_REQ = 0.0f;
157
158	static int
159	ev_socketpair_tcp (int filedes [2])
160	{
161	struct sockaddr_in addr = { 0 };
162	int addr_size = sizeof (addr);
163	SOCKET listener;
164	SOCKET sock [2] = { -1, -1 };
165
166	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
167	return -1;
168
169	addr.sin_family = AF_INET;
170	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
171	addr.sin_port = 0;
172
173	if (bind (listener, (struct sockaddr *)&addr, addr_size))
174	goto fail;
175
176	if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
177	goto fail;
178
179	if (listen (listener, 1))
180	goto fail;
181
182	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
183	goto fail;
184
185	if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
186	goto fail;
187
188	if ((sock[1] = accept (listener, 0, 0)) < 0)
189	goto fail;
190
191	closesocket (listener);
192
193	filedes [0] = sock [0];
194	filedes [1] = sock [1];
195
196	return 0;
197
198	fail:
199	closesocket (listener);
200
201	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
202	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
203
204	return -1;
205	}
206
207	# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
208	#else
209	# define ev_pipe(filedes) pipe (filedes)
210	#endif	191	#endif
211		192
212	/*****************************************************************************/	193	/*****************************************************************************/
213		194
214	static void (syserr_cb)(const char msg);	195	static void (syserr_cb)(const char msg);
…		…
262	typedef struct	243	typedef struct
263	{	244	{
264	WL head;	245	WL head;
265	unsigned char events;	246	unsigned char events;
266	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
267	} ANFD;	251	} ANFD;
268		252
269	typedef struct	253	typedef struct
270	{	254	{
271	W w;	255	W w;
272	int events;	256	int events;
273	} ANPENDING;	257	} ANPENDING;
274		258
275	#if EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
276		260
277	struct ev_loop	261	struct ev_loop
278	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
279	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
280	# include "ev_vars.h"	266	#include "ev_vars.h"
281	};
282	# undef VAR	267	#undef VAR
		268	};
283	# 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;
284		273
285	#else	274	#else
286		275
		276	ev_tstamp ev_rt_now;
287	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
288	# include "ev_vars.h"	278	#include "ev_vars.h"
289	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
290		282
291	#endif	283	#endif
292		284
293	/*****************************************************************************/	285	/*****************************************************************************/
294		286
295	inline ev_tstamp	287	ev_tstamp
296	ev_time (void)	288	ev_time (void)
297	{	289	{
298	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
299	struct timespec ts;	291	struct timespec ts;
300	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
319	#endif	311	#endif
320		312
321	return ev_time ();	313	return ev_time ();
322	}	314	}
323		315
		316	#if EV_MULTIPLICITY
324	ev_tstamp	317	ev_tstamp
325	ev_now (EV_P)	318	ev_now (EV_P)
326	{	319	{
327	return rt_now;	320	return ev_rt_now;
328	}	321	}
		322	#endif
329		323
330	#define array_roundsize(base,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
331		325
332	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
333	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
334	{ \	328	{ \
335	int newcnt = cur; \	329	int newcnt = cur; \
336	do \	330	do \
337	{ \	331	{ \
338	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
339	} \	333	} \
340	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
341	\	335	\
342	base = ev_realloc (base, sizeof (base) (newcnt)); \	336	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
343	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
344	cur = newcnt; \	338	cur = newcnt; \
345	}	339	}
346		340
347	#define array_slim(stem) \	341	#define array_slim(type,stem) \
348	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	342	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
349	{ \	343	{ \
350	stem ## max = array_roundsize (stem ## cnt >> 1); \	344	stem ## max = array_roundsize (stem ## cnt >> 1); \
351	base = ev_realloc (base, sizeof (base) (stem ## max)); \	345	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
352	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
353	}	347	}
354
355	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
356	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
357	#define array_free_microshit(stem) \
358	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
359		348
360	#define array_free(stem, idx) \	349	#define array_free(stem, idx) \
361	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;
362		351
363	/*****************************************************************************/	352	/*****************************************************************************/
…		…
373		362
374	++base;	363	++base;
375	}	364	}
376	}	365	}
377		366
378	static void	367	void
379	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
380	{	369	{
		370	W w_ = (W)w;
		371
381	if (w->pending)	372	if (w_->pending)
382	{	373	{
383	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
384	return;	375	return;
385	}	376	}
386		377
387	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
388	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);
389	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
390	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
391	}	382	}
392		383
393	static void	384	static void
394	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
395	{	386	{
396	int i;	387	int i;
397		388
398	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
399	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
400	}	391	}
401		392
402	static void	393	inline void
403	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
404	{	395	{
405	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
406	struct ev_io *w;	397	struct ev_io *w;
407		398
408	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)
409	{	400	{
410	int ev = w->events & events;	401	int ev = w->events & revents;
411		402
412	if (ev)	403	if (ev)
413	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
414	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
415	}	412	}
416		413
417	/*****************************************************************************/	414	/*****************************************************************************/
418		415
419	static void	416	static void
…		…
430	int events = 0;	427	int events = 0;
431		428
432	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)
433	events \|= w->events;	430	events \|= w->events;
434		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
435	anfd->reify = 0;	441	anfd->reify = 0;
436		442
437	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
438	anfd->events = events;	444	anfd->events = events;
439	}	445	}
…		…
448	return;	454	return;
449		455
450	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
451		457
452	++fdchangecnt;	458	++fdchangecnt;
453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
454	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
455	}	461	}
456		462
457	static void	463	static void
458	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
460	struct ev_io *w;	466	struct ev_io *w;
461		467
462	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
463	{	469	{
464	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
465	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);
466	}	472	}
467	}	473	}
468		474
469	static int	475	static int
470	fd_valid (int fd)	476	fd_valid (int fd)
471	{	477	{
472	#ifdef WIN32	478	#ifdef _WIN32
473	return !!win32_get_osfhandle (fd);	479	return _get_osfhandle (fd) != -1;
474	#else	480	#else
475	return fcntl (fd, F_GETFD) != -1;	481	return fcntl (fd, F_GETFD) != -1;
476	#endif	482	#endif
477	}	483	}
478		484
…		…
558		564
559	heap [k] = w;	565	heap [k] = w;
560	((W)heap [k])->active = k + 1;	566	((W)heap [k])->active = k + 1;
561	}	567	}
562		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
		574	}
		575
563	/*****************************************************************************/	576	/*****************************************************************************/
564		577
565	typedef struct	578	typedef struct
566	{	579	{
567	WL head;	580	WL head;
…		…
588	}	601	}
589		602
590	static void	603	static void
591	sighandler (int signum)	604	sighandler (int signum)
592	{	605	{
593	#if WIN32	606	#if _WIN32
594	signal (signum, sighandler);	607	signal (signum, sighandler);
595	#endif	608	#endif
596		609
597	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
598		611
…		…
603	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
604	errno = old_errno;	617	errno = old_errno;
605	}	618	}
606	}	619	}
607		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
608	static void	641	static void
609	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
610	{	643	{
611	WL w;
612	int signum;	644	int signum;
613		645
614	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
615	gotsig = 0;	647	gotsig = 0;
616		648
617	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
618	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
619	{	651	ev_feed_signal_event (EV_A_ signum + 1);
620	signals [signum].gotsig = 0;	652	}
621		653
622	for (w = signals [signum].head; w; w = w->next)	654	inline void
623	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
624	}	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
625	}	664	}
626		665
627	static void	666	static void
628	siginit (EV_P)	667	siginit (EV_P)
629	{	668	{
630	#ifndef WIN32	669	fd_intern (sigpipe [0]);
631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
633
634	/* rather than sort out wether we really need nb, set it */
635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
637	#endif
638		671
639	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
640	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
641	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
642	}	675	}
643		676
644	/*****************************************************************************/	677	/*****************************************************************************/
645		678
646	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
647		680
648	#ifndef WIN32	681	#ifndef _WIN32
649		682
650	static struct ev_signal childev;	683	static struct ev_signal childev;
651		684
652	#ifndef WCONTINUED	685	#ifndef WCONTINUED
653	# define WCONTINUED 0	686	# define WCONTINUED 0
…		…
662	if (w->pid == pid \|\| !w->pid)	695	if (w->pid == pid \|\| !w->pid)
663	{	696	{
664	ev_priority (w) = ev_priority (sw); /* need to do it now */	697	ev_priority (w) = ev_priority (sw); /* need to do it now */
665	w->rpid = pid;	698	w->rpid = pid;
666	w->rstatus = status;	699	w->rstatus = status;
667	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
668	}	701	}
669	}	702	}
670		703
671	static void	704	static void
672	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
674	int pid, status;	707	int pid, status;
675		708
676	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
677	{	710	{
678	/* 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 */
679	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
680		713
681	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
682	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 */
683	}	716	}
684	}	717	}
685		718
686	#endif	719	#endif
687		720
688	/*****************************************************************************/	721	/*****************************************************************************/
689		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
690	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
691	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
692	#endif	728	#endif
693	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
694	# include "ev_epoll.c"	730	# include "ev_epoll.c"
…		…
714		750
715	/* 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 */
716	static int	752	static int
717	enable_secure (void)	753	enable_secure (void)
718	{	754	{
719	#ifdef WIN32	755	#ifdef _WIN32
720	return 0;	756	return 0;
721	#else	757	#else
722	return getuid () != geteuid ()	758	return getuid () != geteuid ()
723	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
724	#endif	760	#endif
725	}	761	}
726		762
727	int	763	unsigned int
728	ev_method (EV_P)	764	ev_method (EV_P)
729	{	765	{
730	return method;	766	return method;
731	}	767	}
732		768
733	static void	769	static void
734	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
735	{	771	{
736	if (!method)	772	if (!method)
737	{	773	{
738	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
739	{	775	{
…		…
741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
742	have_monotonic = 1;	778	have_monotonic = 1;
743	}	779	}
744	#endif	780	#endif
745		781
746	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
747	mn_now = get_clock ();	783	mn_now = get_clock ();
748	now_floor = mn_now;	784	now_floor = mn_now;
749	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
750		786
751	if (methods == EVMETHOD_AUTO)	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
752	if (!enable_secure () && getenv ("LIBEV_METHODS"))
753	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
754	else	789
755	methods = EVMETHOD_ANY;	790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
756		792
757	method = 0;	793	method = 0;
758	#if EV_USE_WIN32	794	#if EV_USE_PORT
759	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
760	#endif	796	#endif
761	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
763	#endif	799	#endif
764	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
766	#endif	802	#endif
767	#if EV_USE_POLL	803	#if EV_USE_POLL
768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
769	#endif	805	#endif
770	#if EV_USE_SELECT	806	#if EV_USE_SELECT
771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
772	#endif	808	#endif
773		809
774	ev_watcher_init (&sigev, sigcb);	810	ev_init (&sigev, sigcb);
775	ev_set_priority (&sigev, EV_MAXPRI);	811	ev_set_priority (&sigev, EV_MAXPRI);
776	}	812	}
777	}	813	}
778		814
779	void	815	void
780	loop_destroy (EV_P)	816	loop_destroy (EV_P)
781	{	817	{
782	int i;	818	int i;
783		819
784	#if EV_USE_WIN32	820	#if EV_USE_PORT
785	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
786	#endif	822	#endif
787	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
788	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
789	#endif	825	#endif
790	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
…		…
799		835
800	for (i = NUMPRI; i--; )	836	for (i = NUMPRI; i--; )
801	array_free (pending, [i]);	837	array_free (pending, [i]);
802		838
803	/* have to use the microsoft-never-gets-it-right macro */	839	/* have to use the microsoft-never-gets-it-right macro */
804	array_free_microshit (fdchange);	840	array_free (fdchange, EMPTY0);
805	array_free_microshit (timer);	841	array_free (timer, EMPTY0);
806	array_free_microshit (periodic);	842	#if EV_PERIODICS
807	array_free_microshit (idle);	843	array_free (periodic, EMPTY0);
808	array_free_microshit (prepare);	844	#endif
809	array_free_microshit (check);	845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
810		848
811	method = 0;	849	method = 0;
812	}	850	}
813		851
814	static void	852	static void
815	loop_fork (EV_P)	853	loop_fork (EV_P)
816	{	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
817	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
818	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
819	#endif
820	#if EV_USE_KQUEUE
821	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
822	#endif	863	#endif
823		864
824	if (ev_is_active (&sigev))	865	if (ev_is_active (&sigev))
825	{	866	{
826	/* default loop */	867	/* default loop */
…		…
828	ev_ref (EV_A);	869	ev_ref (EV_A);
829	ev_io_stop (EV_A_ &sigev);	870	ev_io_stop (EV_A_ &sigev);
830	close (sigpipe [0]);	871	close (sigpipe [0]);
831	close (sigpipe [1]);	872	close (sigpipe [1]);
832		873
833	while (ev_pipe (sigpipe))	874	while (pipe (sigpipe))
834	syserr ("(libev) error creating pipe");	875	syserr ("(libev) error creating pipe");
835		876
836	siginit (EV_A);	877	siginit (EV_A);
837	}	878	}
838		879
839	postfork = 0;	880	postfork = 0;
840	}	881	}
841		882
842	#if EV_MULTIPLICITY	883	#if EV_MULTIPLICITY
843	struct ev_loop *	884	struct ev_loop *
844	ev_loop_new (int methods)	885	ev_loop_new (unsigned int flags)
845	{	886	{
846	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));
847		888
848	memset (loop, 0, sizeof (struct ev_loop));	889	memset (loop, 0, sizeof (struct ev_loop));
849		890
850	loop_init (EV_A_ methods);	891	loop_init (EV_A_ flags);
851		892
852	if (ev_method (EV_A))	893	if (ev_method (EV_A))
853	return loop;	894	return loop;
854		895
855	return 0;	896	return 0;
…		…
869	}	910	}
870		911
871	#endif	912	#endif
872		913
873	#if EV_MULTIPLICITY	914	#if EV_MULTIPLICITY
874	struct ev_loop default_loop_struct;
875	static struct ev_loop *default_loop;
876
877	struct ev_loop *	915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
878	#else	917	#else
879	static int default_loop;
880
881	int	918	int
		919	ev_default_loop (unsigned int flags)
882	#endif	920	#endif
883	ev_default_loop (int methods)
884	{	921	{
885	if (sigpipe [0] == sigpipe [1])	922	if (sigpipe [0] == sigpipe [1])
886	if (ev_pipe (sigpipe))	923	if (pipe (sigpipe))
887	return 0;	924	return 0;
888		925
889	if (!default_loop)	926	if (!ev_default_loop_ptr)
890	{	927	{
891	#if EV_MULTIPLICITY	928	#if EV_MULTIPLICITY
892	struct ev_loop *loop = default_loop = &default_loop_struct;	929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
893	#else	930	#else
894	default_loop = 1;	931	ev_default_loop_ptr = 1;
895	#endif	932	#endif
896		933
897	loop_init (EV_A_ methods);	934	loop_init (EV_A_ flags);
898		935
899	if (ev_method (EV_A))	936	if (ev_method (EV_A))
900	{	937	{
901	siginit (EV_A);	938	siginit (EV_A);
902		939
903	#ifndef WIN32	940	#ifndef _WIN32
904	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
905	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
906	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
907	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
908	#endif	945	#endif
909	}	946	}
910	else	947	else
911	default_loop = 0;	948	ev_default_loop_ptr = 0;
912	}	949	}
913		950
914	return default_loop;	951	return ev_default_loop_ptr;
915	}	952	}
916		953
917	void	954	void
918	ev_default_destroy (void)	955	ev_default_destroy (void)
919	{	956	{
920	#if EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
921	struct ev_loop *loop = default_loop;	958	struct ev_loop *loop = ev_default_loop_ptr;
922	#endif	959	#endif
923		960
924	#ifndef WIN32	961	#ifndef _WIN32
925	ev_ref (EV_A); /* child watcher */	962	ev_ref (EV_A); /* child watcher */
926	ev_signal_stop (EV_A_ &childev);	963	ev_signal_stop (EV_A_ &childev);
927	#endif	964	#endif
928		965
929	ev_ref (EV_A); /* signal watcher */	966	ev_ref (EV_A); /* signal watcher */
…		…
937		974
938	void	975	void
939	ev_default_fork (void)	976	ev_default_fork (void)
940	{	977	{
941	#if EV_MULTIPLICITY	978	#if EV_MULTIPLICITY
942	struct ev_loop *loop = default_loop;	979	struct ev_loop *loop = ev_default_loop_ptr;
943	#endif	980	#endif
944		981
945	if (method)	982	if (method)
946	postfork = 1;	983	postfork = 1;
947	}	984	}
948		985
949	/*****************************************************************************/	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	}
950		999
951	static void	1000	static void
952	call_pending (EV_P)	1001	call_pending (EV_P)
953	{	1002	{
954	int pri;	1003	int pri;
…		…
959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
960		1009
961	if (p->w)	1010	if (p->w)
962	{	1011	{
963	p->w->pending = 0;	1012	p->w->pending = 0;
964	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
965	}	1014	}
966	}	1015	}
967	}	1016	}
968		1017
969	static void	1018	static void
…		…
977		1026
978	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
979	if (w->repeat)	1028	if (w->repeat)
980	{	1029	{
981	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
982	((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
983	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
984	}	1037	}
985	else	1038	else
986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
987		1040
988	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
989	}	1042	}
990	}	1043	}
991		1044
		1045	#if EV_PERIODICS
992	static void	1046	static void
993	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
994	{	1048	{
995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
996	{	1050	{
997	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
998		1052
999	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1000		1054
1001	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
1002	if (w->interval)	1056	if (w->reschedule_cb)
1003	{	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	{
1004	((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;
1005	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));
1006	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
1007	}	1067	}
1008	else	1068	else
1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1010		1070
1011	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1012	}	1072	}
1013	}	1073	}
1014		1074
1015	static void	1075	static void
1016	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
1020	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
1021	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
1022	{	1082	{
1023	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
1024		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1025	if (w->interval)	1087	else if (w->interval)
1026	{
1027	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;
1028
1029	if (fabs (diff) >= 1e-4)
1030	{
1031	ev_periodic_stop (EV_A_ w);
1032	ev_periodic_start (EV_A_ w);
1033
1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
1035	}
1036	}
1037	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
1038	}	1094	}
		1095	#endif
1039		1096
1040	inline int	1097	inline int
1041	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
1042	{	1099	{
1043	mn_now = get_clock ();	1100	mn_now = get_clock ();
1044		1101
1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1046	{	1103	{
1047	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
1048	return 0;	1105	return 0;
1049	}	1106	}
1050	else	1107	else
1051	{	1108	{
1052	now_floor = mn_now;	1109	now_floor = mn_now;
1053	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
1054	return 1;	1111	return 1;
1055	}	1112	}
1056	}	1113	}
1057		1114
1058	static void	1115	static void
…		…
1067	{	1124	{
1068	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
1069		1126
1070	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 */
1071	{	1128	{
1072	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
1073		1130
1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1075	return; /* all is well */	1132	return; /* all is well */
1076		1133
1077	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
1078	mn_now = get_clock ();	1135	mn_now = get_clock ();
1079	now_floor = mn_now;	1136	now_floor = mn_now;
1080	}	1137	}
1081		1138
		1139	# if EV_PERIODICS
1082	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
1083	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
1084	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1085	}	1144	}
1086	}	1145	}
1087	else	1146	else
1088	#endif	1147	#endif
1089	{	1148	{
1090	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
1091		1150
1092	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))
1093	{	1152	{
		1153	#if EV_PERIODICS
1094	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
1095		1156
1096	/* 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 */
1097	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
1098	((WT)timers [i])->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
1099	}	1160	}
1100		1161
1101	mn_now = rt_now;	1162	mn_now = ev_rt_now;
1102	}	1163	}
1103	}	1164	}
1104		1165
1105	void	1166	void
1106	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
1120	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
1121	{	1182	{
1122	double block;	1183	double block;
1123	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1124		1185
1125	do	1186	while (activecnt)
1126	{	1187	{
1127	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
1128	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
1129	{	1190	{
1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
1139	fd_reify (EV_A);	1200	fd_reify (EV_A);
1140		1201
1141	/* calculate blocking time */	1202	/* calculate blocking time */
1142		1203
1143	/* 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
1144	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
1145	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
1146	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
1147	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
1148	else	1209	else
1149	#endif	1210	#endif
1150	{	1211	{
1151	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
1152	mn_now = rt_now;	1213	mn_now = ev_rt_now;
1153	}	1214	}
1154		1215
1155	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1156	block = 0.;	1217	block = 0.;
1157	else	1218	else
…		…
1162	{	1223	{
1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1164	if (block > to) block = to;	1225	if (block > to) block = to;
1165	}	1226	}
1166		1227
		1228	#if EV_PERIODICS
1167	if (periodiccnt)	1229	if (periodiccnt)
1168	{	1230	{
1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1170	if (block > to) block = to;	1232	if (block > to) block = to;
1171	}	1233	}
		1234	#endif
1172		1235
1173	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
1174	}	1237	}
1175		1238
1176	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
1177		1240
1178	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
1179	time_update (EV_A);	1242	time_update (EV_A);
1180		1243
1181	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
1182	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
1183	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
1184		1249
1185	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
1186	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1188		1253
1189	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
1190	if (checkcnt)	1255	if (checkcnt)
1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1192		1257
1193	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
1194	}	1262	}
1195	while (activecnt && !loop_done);
1196		1263
1197	if (loop_done != 2)	1264	if (loop_done != 2)
1198	loop_done = 0;	1265	loop_done = 0;
1199	}	1266	}
1200		1267
…		…
1266	return;	1333	return;
1267		1334
1268	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
1269		1336
1270	ev_start (EV_A_ (W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1273		1340
1274	fd_change (EV_A_ fd);	1341	fd_change (EV_A_ fd);
1275	}	1342	}
1276		1343
…		…
1279	{	1346	{
1280	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
1281	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
1282	return;	1349	return;
1283		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1285	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
1286		1355
1287	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
1288	}	1357	}
…		…
1296	((WT)w)->at += mn_now;	1365	((WT)w)->at += mn_now;
1297		1366
1298	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.));
1299		1368
1300	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1301	array_needsize (timers, timermax, timercnt, (void));	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1302	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1303	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
1304		1373
1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1306	}	1375	}
…		…
1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1316		1385
1317	if (((W)w)->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1318	{	1387	{
1319	timers [((W)w)->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1321	}	1390	}
1322		1391
1323	((WT)w)->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1324		1393
1325	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1326	}	1395	}
1327		1396
1328	void	1397	void
…		…
1331	if (ev_is_active (w))	1400	if (ev_is_active (w))
1332	{	1401	{
1333	if (w->repeat)	1402	if (w->repeat)
1334	{	1403	{
1335	((WT)w)->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1337	}	1406	}
1338	else	1407	else
1339	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1340	}	1409	}
1341	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1342	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1343	}	1415	}
1344		1416
		1417	#if EV_PERIODICS
1345	void	1418	void
1346	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1347	{	1420	{
1348	if (ev_is_active (w))	1421	if (ev_is_active (w))
1349	return;	1422	return;
1350		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1351	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.));
1352
1353	/* 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 */
1354	if (w->interval)
1355	((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	}
1356		1432
1357	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1358	array_needsize (periodics, periodicmax, periodiccnt, (void));	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1359	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1360	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
1361		1437
1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1363	}	1439	}
…		…
1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1373		1449
1374	if (((W)w)->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1375	{	1451	{
1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1378	}	1454	}
1379		1455
1380	ev_stop (EV_A_ (W)w);	1456	ev_stop (EV_A_ (W)w);
1381	}	1457	}
1382		1458
1383	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
1384	ev_idle_start (EV_P_ struct ev_idle *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1385	{	1470	{
1386	if (ev_is_active (w))	1471	if (ev_is_active (w))
1387	return;	1472	return;
1388		1473
1389	ev_start (EV_A_ (W)w, ++idlecnt);	1474	ev_start (EV_A_ (W)w, ++idlecnt);
1390	array_needsize (idles, idlemax, idlecnt, (void));	1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1391	idles [idlecnt - 1] = w;	1476	idles [idlecnt - 1] = w;
1392	}	1477	}
1393		1478
1394	void	1479	void
1395	ev_idle_stop (EV_P_ struct ev_idle *w)	1480	ev_idle_stop (EV_P_ struct ev_idle *w)
1396	{	1481	{
1397	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1483	if (!ev_is_active (w))
1399	return;	1484	return;
1400		1485
1401	idles [((W)w)->active - 1] = idles [--idlecnt];	1486	idles [((W)w)->active - 1] = idles [--idlecnt];
1402	ev_stop (EV_A_ (W)w);	1487	ev_stop (EV_A_ (W)w);
1403	}	1488	}
…		…
1407	{	1492	{
1408	if (ev_is_active (w))	1493	if (ev_is_active (w))
1409	return;	1494	return;
1410		1495
1411	ev_start (EV_A_ (W)w, ++preparecnt);	1496	ev_start (EV_A_ (W)w, ++preparecnt);
1412	array_needsize (prepares, preparemax, preparecnt, (void));	1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1413	prepares [preparecnt - 1] = w;	1498	prepares [preparecnt - 1] = w;
1414	}	1499	}
1415		1500
1416	void	1501	void
1417	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1418	{	1503	{
1419	ev_clear_pending (EV_A_ (W)w);	1504	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1505	if (!ev_is_active (w))
1421	return;	1506	return;
1422		1507
1423	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1424	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1425	}	1510	}
…		…
1429	{	1514	{
1430	if (ev_is_active (w))	1515	if (ev_is_active (w))
1431	return;	1516	return;
1432		1517
1433	ev_start (EV_A_ (W)w, ++checkcnt);	1518	ev_start (EV_A_ (W)w, ++checkcnt);
1434	array_needsize (checks, checkmax, checkcnt, (void));	1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1435	checks [checkcnt - 1] = w;	1520	checks [checkcnt - 1] = w;
1436	}	1521	}
1437		1522
1438	void	1523	void
1439	ev_check_stop (EV_P_ struct ev_check *w)	1524	ev_check_stop (EV_P_ struct ev_check *w)
1440	{	1525	{
1441	ev_clear_pending (EV_A_ (W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1442	if (ev_is_active (w))	1527	if (!ev_is_active (w))
1443	return;	1528	return;
1444		1529
1445	checks [((W)w)->active - 1] = checks [--checkcnt];	1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1446	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1447	}	1532	}
…		…
1452		1537
1453	void	1538	void
1454	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1455	{	1540	{
1456	#if EV_MULTIPLICITY	1541	#if EV_MULTIPLICITY
1457	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));
1458	#endif	1543	#endif
1459	if (ev_is_active (w))	1544	if (ev_is_active (w))
1460	return;	1545	return;
1461		1546
1462	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));
1463		1548
1464	ev_start (EV_A_ (W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1465	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1467		1552
1468	if (!((WL)w)->next)	1553	if (!((WL)w)->next)
1469	{	1554	{
1470	#if WIN32	1555	#if _WIN32
1471	signal (w->signum, sighandler);	1556	signal (w->signum, sighandler);
1472	#else	1557	#else
1473	struct sigaction sa;	1558	struct sigaction sa;
1474	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1475	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
…		…
1495		1580
1496	void	1581	void
1497	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1498	{	1583	{
1499	#if EV_MULTIPLICITY	1584	#if EV_MULTIPLICITY
1500	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));
1501	#endif	1586	#endif
1502	if (ev_is_active (w))	1587	if (ev_is_active (w))
1503	return;	1588	return;
1504		1589
1505	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
…		…
1508		1593
1509	void	1594	void
1510	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1511	{	1596	{
1512	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1513	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1514	return;	1599	return;
1515		1600
1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1517	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1518	}	1603	}
…		…
1553	}	1638	}
1554		1639
1555	void	1640	void
1556	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)
1557	{	1642	{
1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1643	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1559		1644
1560	if (!once)	1645	if (!once)
1561	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1562	else	1647	else
1563	{	1648	{
1564	once->cb = cb;	1649	once->cb = cb;
1565	once->arg = arg;	1650	once->arg = arg;
1566		1651
1567	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1568	if (fd >= 0)	1653	if (fd >= 0)
1569	{	1654	{
1570	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1571	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1572	}	1657	}
1573		1658
1574	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1575	if (timeout >= 0.)	1660	if (timeout >= 0.)
1576	{	1661	{
1577	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1578	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1579	}	1664	}
1580	}	1665	}
1581	}	1666	}
1582		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs. Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC