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

Comparing libev/ev.c (file contents):
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs.
Revision 1.142 by root, Tue Nov 27 06:19:08 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
40	# ifndef EV_USE_MONOTONIC	44	# ifndef EV_USE_MONOTONIC
41	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
42	# endif	46	# endif
43	# ifndef EV_USE_REALTIME	47	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
45	# endif	49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
46	# endif	57	# endif
47		58
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_SELECT
		60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
50	# endif	65	# endif
51		66
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_POLL
		68	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
54	# endif	73	# endif
55		74
56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_EPOLL
		76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
58	# endif	81	# endif
59		82
		83	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
62	# endif	97	# endif
63		98
64	#endif	99	#endif
65		100
66	#include <math.h>	101	#include <math.h>
…		…
75	#include <sys/types.h>	110	#include <sys/types.h>
76	#include <time.h>	111	#include <time.h>
77		112
78	#include <signal.h>	113	#include <signal.h>
79		114
80	#ifndef WIN32	115	#ifndef _WIN32
81	# include <unistd.h>
82	# include <sys/time.h>	116	# include <sys/time.h>
83	# include <sys/wait.h>	117	# include <sys/wait.h>
		118	# include <unistd.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
84	#endif	124	# endif
		125	#endif
		126
85	/**/	127	/**/
86		128
87	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
88	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
89	#endif	135	#endif
90		136
91	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
92	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
93	#endif	139	#endif
94		140
95	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
97	#endif	147	#endif
98		148
99	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
100	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
101	#endif	151	#endif
102		152
103	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
104	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
105	#endif	155	#endif
106		156
107	#ifndef EV_USE_WIN32
108	# ifdef WIN32
109	# define EV_USE_WIN32 0 /* it does not exist, use select */
110	# undef EV_USE_SELECT
111	# define EV_USE_SELECT 1
112	# else
113	# define EV_USE_WIN32 0
114	# endif
115	#endif
116
117	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
118	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
119	#endif	159	#endif
120		160
121	/**/	161	/**/
122		162
123	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
128	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
129	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
131	#endif	171	#endif
132		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
133	/**/	177	/**/
134		178
135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
139		183
140	#ifdef EV_H	184	#ifdef EV_H
141	# include EV_H	185	# include EV_H
142	#else	186	#else
143	# include "ev.h"	187	# include "ev.h"
144	#endif	188	#endif
145		189
146	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
147	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
		192	# define inline_size static inline /* inline for codesize */
		193	# if EV_MINIMAL
148	# define inline inline	194	# define noinline __attribute__ ((noinline))
		195	# define inline_speed static noinline
		196	# else
		197	# define noinline
		198	# define inline_speed static inline
		199	# endif
149	#else	200	#else
150	# define expect(expr,value) (expr)	201	# define expect(expr,value) (expr)
151	# define inline static	202	# define inline_speed static
		203	# define inline_minimal static
		204	# define noinline
152	#endif	205	#endif
153		206
154	#define expect_false(expr) expect ((expr) != 0, 0)	207	#define expect_false(expr) expect ((expr) != 0, 0)
155	#define expect_true(expr) expect ((expr) != 0, 1)	208	#define expect_true(expr) expect ((expr) != 0, 1)
156		209
157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	210	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	211	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
159		212
		213	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		214	#define EMPTY2(a,b) /* used to suppress some warnings */
		215
160	typedef struct ev_watcher *W;	216	typedef ev_watcher *W;
161	typedef struct ev_watcher_list *WL;	217	typedef ev_watcher_list *WL;
162	typedef struct ev_watcher_time *WT;	218	typedef ev_watcher_time *WT;
163		219
164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	220	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165		221
		222	#ifdef _WIN32
166	#include "ev_win32.c"	223	# include "ev_win32.c"
		224	#endif
167		225
168	/*****************************************************************************/	226	/*****************************************************************************/
169		227
170	static void (syserr_cb)(const char msg);	228	static void (syserr_cb)(const char msg);
171		229
		230	void
172	void ev_set_syserr_cb (void (cb)(const char msg))	231	ev_set_syserr_cb (void (cb)(const char msg))
173	{	232	{
174	syserr_cb = cb;	233	syserr_cb = cb;
175	}	234	}
176		235
177	static void	236	static void noinline
178	syserr (const char *msg)	237	syserr (const char *msg)
179	{	238	{
180	if (!msg)	239	if (!msg)
181	msg = "(libev) system error";	240	msg = "(libev) system error";
182		241
…		…
189	}	248	}
190	}	249	}
191		250
192	static void (alloc)(void *ptr, long size);	251	static void (alloc)(void *ptr, long size);
193		252
		253	void
194	void ev_set_allocator (void (cb)(void *ptr, long size))	254	ev_set_allocator (void (cb)(void *ptr, long size))
195	{	255	{
196	alloc = cb;	256	alloc = cb;
197	}	257	}
198		258
199	static void *	259	static void *
…		…
218	typedef struct	278	typedef struct
219	{	279	{
220	WL head;	280	WL head;
221	unsigned char events;	281	unsigned char events;
222	unsigned char reify;	282	unsigned char reify;
		283	#if EV_SELECT_IS_WINSOCKET
		284	SOCKET handle;
		285	#endif
223	} ANFD;	286	} ANFD;
224		287
225	typedef struct	288	typedef struct
226	{	289	{
227	W w;	290	W w;
…		…
231	#if EV_MULTIPLICITY	294	#if EV_MULTIPLICITY
232		295
233	struct ev_loop	296	struct ev_loop
234	{	297	{
235	ev_tstamp ev_rt_now;	298	ev_tstamp ev_rt_now;
		299	#define ev_rt_now ((loop)->ev_rt_now)
236	#define VAR(name,decl) decl;	300	#define VAR(name,decl) decl;
237	#include "ev_vars.h"	301	#include "ev_vars.h"
238	#undef VAR	302	#undef VAR
239	};	303	};
240	#include "ev_wrap.h"	304	#include "ev_wrap.h"
241		305
242	struct ev_loop default_loop_struct;	306	static struct ev_loop default_loop_struct;
243	static struct ev_loop *default_loop;	307	struct ev_loop *ev_default_loop_ptr;
244		308
245	#else	309	#else
246		310
247	ev_tstamp ev_rt_now;	311	ev_tstamp ev_rt_now;
248	#define VAR(name,decl) static decl;	312	#define VAR(name,decl) static decl;
249	#include "ev_vars.h"	313	#include "ev_vars.h"
250	#undef VAR	314	#undef VAR
251		315
252	static int default_loop;	316	static int ev_default_loop_ptr;
253		317
254	#endif	318	#endif
255		319
256	/*****************************************************************************/	320	/*****************************************************************************/
257		321
…		…
267	gettimeofday (&tv, 0);	331	gettimeofday (&tv, 0);
268	return tv.tv_sec + tv.tv_usec * 1e-6;	332	return tv.tv_sec + tv.tv_usec * 1e-6;
269	#endif	333	#endif
270	}	334	}
271		335
272	inline ev_tstamp	336	ev_tstamp inline_size
273	get_clock (void)	337	get_clock (void)
274	{	338	{
275	#if EV_USE_MONOTONIC	339	#if EV_USE_MONOTONIC
276	if (expect_true (have_monotonic))	340	if (expect_true (have_monotonic))
277	{	341	{
…		…
290	{	354	{
291	return ev_rt_now;	355	return ev_rt_now;
292	}	356	}
293	#endif	357	#endif
294		358
295	#define array_roundsize(type,n) ((n) \| 4 & ~3)	359	#define array_roundsize(type,n) (((n) \| 4) & ~3)
296		360
297	#define array_needsize(type,base,cur,cnt,init) \	361	#define array_needsize(type,base,cur,cnt,init) \
298	if (expect_false ((cnt) > cur)) \	362	if (expect_false ((cnt) > cur)) \
299	{ \	363	{ \
300	int newcnt = cur; \	364	int newcnt = cur; \
…		…
315	stem ## max = array_roundsize (stem ## cnt >> 1); \	379	stem ## max = array_roundsize (stem ## cnt >> 1); \
316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	380	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	381	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
318	}	382	}
319		383
320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
322	#define array_free_microshit(stem) \
323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
324
325	#define array_free(stem, idx) \	384	#define array_free(stem, idx) \
326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	385	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
327		386
328	/*****************************************************************************/	387	/*****************************************************************************/
329		388
330	static void	389	void noinline
		390	ev_feed_event (EV_P_ void *w, int revents)
		391	{
		392	W w_ = (W)w;
		393
		394	if (expect_false (w_->pending))
		395	{
		396	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
		397	return;
		398	}
		399
		400	w_->pending = ++pendingcnt [ABSPRI (w_)];
		401	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
		402	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
		403	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
		404	}
		405
		406	void inline_size
		407	queue_events (EV_P_ W *events, int eventcnt, int type)
		408	{
		409	int i;
		410
		411	for (i = 0; i < eventcnt; ++i)
		412	ev_feed_event (EV_A_ events [i], type);
		413	}
		414
		415	/*****************************************************************************/
		416
		417	void inline_size
331	anfds_init (ANFD *base, int count)	418	anfds_init (ANFD *base, int count)
332	{	419	{
333	while (count--)	420	while (count--)
334	{	421	{
335	base->head = 0;	422	base->head = 0;
…		…
338		425
339	++base;	426	++base;
340	}	427	}
341	}	428	}
342		429
343	void	430	void inline_speed
344	ev_feed_event (EV_P_ void *w, int revents)
345	{
346	W w_ = (W)w;
347
348	if (w_->pending)
349	{
350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
351	return;
352	}
353
354	w_->pending = ++pendingcnt [ABSPRI (w_)];
355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
358	}
359
360	static void
361	queue_events (EV_P_ W *events, int eventcnt, int type)
362	{
363	int i;
364
365	for (i = 0; i < eventcnt; ++i)
366	ev_feed_event (EV_A_ events [i], type);
367	}
368
369	inline void
370	fd_event (EV_P_ int fd, int revents)	431	fd_event (EV_P_ int fd, int revents)
371	{	432	{
372	ANFD *anfd = anfds + fd;	433	ANFD *anfd = anfds + fd;
373	struct ev_io *w;	434	ev_io *w;
374		435
375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	436	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
376	{	437	{
377	int ev = w->events & revents;	438	int ev = w->events & revents;
378		439
379	if (ev)	440	if (ev)
380	ev_feed_event (EV_A_ (W)w, ev);	441	ev_feed_event (EV_A_ (W)w, ev);
…		…
385	ev_feed_fd_event (EV_P_ int fd, int revents)	446	ev_feed_fd_event (EV_P_ int fd, int revents)
386	{	447	{
387	fd_event (EV_A_ fd, revents);	448	fd_event (EV_A_ fd, revents);
388	}	449	}
389		450
390	/*****************************************************************************/	451	void inline_size
391
392	static void
393	fd_reify (EV_P)	452	fd_reify (EV_P)
394	{	453	{
395	int i;	454	int i;
396		455
397	for (i = 0; i < fdchangecnt; ++i)	456	for (i = 0; i < fdchangecnt; ++i)
398	{	457	{
399	int fd = fdchanges [i];	458	int fd = fdchanges [i];
400	ANFD *anfd = anfds + fd;	459	ANFD *anfd = anfds + fd;
401	struct ev_io *w;	460	ev_io *w;
402		461
403	int events = 0;	462	int events = 0;
404		463
405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	464	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
406	events \|= w->events;	465	events \|= w->events;
407		466
		467	#if EV_SELECT_IS_WINSOCKET
		468	if (events)
		469	{
		470	unsigned long argp;
		471	anfd->handle = _get_osfhandle (fd);
		472	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		473	}
		474	#endif
		475
408	anfd->reify = 0;	476	anfd->reify = 0;
409		477
410	method_modify (EV_A_ fd, anfd->events, events);	478	backend_modify (EV_A_ fd, anfd->events, events);
411	anfd->events = events;	479	anfd->events = events;
412	}	480	}
413		481
414	fdchangecnt = 0;	482	fdchangecnt = 0;
415	}	483	}
416		484
417	static void	485	void inline_size
418	fd_change (EV_P_ int fd)	486	fd_change (EV_P_ int fd)
419	{	487	{
420	if (anfds [fd].reify)	488	if (expect_false (anfds [fd].reify))
421	return;	489	return;
422		490
423	anfds [fd].reify = 1;	491	anfds [fd].reify = 1;
424		492
425	++fdchangecnt;	493	++fdchangecnt;
426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	494	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
427	fdchanges [fdchangecnt - 1] = fd;	495	fdchanges [fdchangecnt - 1] = fd;
428	}	496	}
429		497
430	static void	498	void inline_speed
431	fd_kill (EV_P_ int fd)	499	fd_kill (EV_P_ int fd)
432	{	500	{
433	struct ev_io *w;	501	ev_io *w;
434		502
435	while ((w = (struct ev_io *)anfds [fd].head))	503	while ((w = (ev_io *)anfds [fd].head))
436	{	504	{
437	ev_io_stop (EV_A_ w);	505	ev_io_stop (EV_A_ w);
438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	506	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
439	}	507	}
440	}	508	}
441		509
442	static int	510	int inline_size
443	fd_valid (int fd)	511	fd_valid (int fd)
444	{	512	{
445	#ifdef WIN32	513	#ifdef _WIN32
446	return !!win32_get_osfhandle (fd);	514	return _get_osfhandle (fd) != -1;
447	#else	515	#else
448	return fcntl (fd, F_GETFD) != -1;	516	return fcntl (fd, F_GETFD) != -1;
449	#endif	517	#endif
450	}	518	}
451		519
452	/* called on EBADF to verify fds */	520	/* called on EBADF to verify fds */
453	static void	521	static void noinline
454	fd_ebadf (EV_P)	522	fd_ebadf (EV_P)
455	{	523	{
456	int fd;	524	int fd;
457		525
458	for (fd = 0; fd < anfdmax; ++fd)	526	for (fd = 0; fd < anfdmax; ++fd)
…		…
460	if (!fd_valid (fd) == -1 && errno == EBADF)	528	if (!fd_valid (fd) == -1 && errno == EBADF)
461	fd_kill (EV_A_ fd);	529	fd_kill (EV_A_ fd);
462	}	530	}
463		531
464	/* called on ENOMEM in select/poll to kill some fds and retry */	532	/* called on ENOMEM in select/poll to kill some fds and retry */
465	static void	533	static void noinline
466	fd_enomem (EV_P)	534	fd_enomem (EV_P)
467	{	535	{
468	int fd;	536	int fd;
469		537
470	for (fd = anfdmax; fd--; )	538	for (fd = anfdmax; fd--; )
…		…
473	fd_kill (EV_A_ fd);	541	fd_kill (EV_A_ fd);
474	return;	542	return;
475	}	543	}
476	}	544	}
477		545
478	/* usually called after fork if method needs to re-arm all fds from scratch */	546	/* usually called after fork if backend needs to re-arm all fds from scratch */
479	static void	547	static void noinline
480	fd_rearm_all (EV_P)	548	fd_rearm_all (EV_P)
481	{	549	{
482	int fd;	550	int fd;
483		551
484	/* this should be highly optimised to not do anything but set a flag */	552	/* this should be highly optimised to not do anything but set a flag */
…		…
490	}	558	}
491	}	559	}
492		560
493	/*****************************************************************************/	561	/*****************************************************************************/
494		562
495	static void	563	void inline_speed
496	upheap (WT *heap, int k)	564	upheap (WT *heap, int k)
497	{	565	{
498	WT w = heap [k];	566	WT w = heap [k];
499		567
500	while (k && heap [k >> 1]->at > w->at)	568	while (k && heap [k >> 1]->at > w->at)
…		…
507	heap [k] = w;	575	heap [k] = w;
508	((W)heap [k])->active = k + 1;	576	((W)heap [k])->active = k + 1;
509		577
510	}	578	}
511		579
512	static void	580	void inline_speed
513	downheap (WT *heap, int N, int k)	581	downheap (WT *heap, int N, int k)
514	{	582	{
515	WT w = heap [k];	583	WT w = heap [k];
516		584
517	while (k < (N >> 1))	585	while (k < (N >> 1))
…		…
531		599
532	heap [k] = w;	600	heap [k] = w;
533	((W)heap [k])->active = k + 1;	601	((W)heap [k])->active = k + 1;
534	}	602	}
535		603
536	inline void	604	void inline_size
537	adjustheap (WT *heap, int N, int k, ev_tstamp at)	605	adjustheap (WT *heap, int N, int k)
538	{	606	{
539	ev_tstamp old_at = heap [k]->at;	607	upheap (heap, k);
540	heap [k]->at = at;
541
542	if (old_at < at)
543	downheap (heap, N, k);	608	downheap (heap, N, k);
544	else
545	upheap (heap, k);
546	}	609	}
547		610
548	/*****************************************************************************/	611	/*****************************************************************************/
549		612
550	typedef struct	613	typedef struct
…		…
556	static ANSIG *signals;	619	static ANSIG *signals;
557	static int signalmax;	620	static int signalmax;
558		621
559	static int sigpipe [2];	622	static int sigpipe [2];
560	static sig_atomic_t volatile gotsig;	623	static sig_atomic_t volatile gotsig;
561	static struct ev_io sigev;	624	static ev_io sigev;
562		625
563	static void	626	void inline_size
564	signals_init (ANSIG *base, int count)	627	signals_init (ANSIG *base, int count)
565	{	628	{
566	while (count--)	629	while (count--)
567	{	630	{
568	base->head = 0;	631	base->head = 0;
…		…
573	}	636	}
574		637
575	static void	638	static void
576	sighandler (int signum)	639	sighandler (int signum)
577	{	640	{
578	#if WIN32	641	#if _WIN32
579	signal (signum, sighandler);	642	signal (signum, sighandler);
580	#endif	643	#endif
581		644
582	signals [signum - 1].gotsig = 1;	645	signals [signum - 1].gotsig = 1;
583		646
584	if (!gotsig)	647	if (!gotsig)
585	{	648	{
586	int old_errno = errno;	649	int old_errno = errno;
587	gotsig = 1;	650	gotsig = 1;
588	#ifdef WIN32
589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
590	#else
591	write (sigpipe [1], &signum, 1);	651	write (sigpipe [1], &signum, 1);
592	#endif
593	errno = old_errno;	652	errno = old_errno;
594	}	653	}
595	}	654	}
596		655
597	void	656	void noinline
598	ev_feed_signal_event (EV_P_ int signum)	657	ev_feed_signal_event (EV_P_ int signum)
599	{	658	{
600	WL w;	659	WL w;
601		660
602	#if EV_MULTIPLICITY	661	#if EV_MULTIPLICITY
603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	662	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
604	#endif	663	#endif
605		664
606	--signum;	665	--signum;
607		666
608	if (signum < 0 \|\| signum >= signalmax)	667	if (signum < 0 \|\| signum >= signalmax)
…		…
613	for (w = signals [signum].head; w; w = w->next)	672	for (w = signals [signum].head; w; w = w->next)
614	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	673	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
615	}	674	}
616		675
617	static void	676	static void
618	sigcb (EV_P_ struct ev_io *iow, int revents)	677	sigcb (EV_P_ ev_io *iow, int revents)
619	{	678	{
620	int signum;	679	int signum;
621		680
622	#ifdef WIN32
623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
624	#else
625	read (sigpipe [0], &revents, 1);	681	read (sigpipe [0], &revents, 1);
626	#endif
627	gotsig = 0;	682	gotsig = 0;
628		683
629	for (signum = signalmax; signum--; )	684	for (signum = signalmax; signum--; )
630	if (signals [signum].gotsig)	685	if (signals [signum].gotsig)
631	ev_feed_signal_event (EV_A_ signum + 1);	686	ev_feed_signal_event (EV_A_ signum + 1);
632	}	687	}
633		688
634	static void	689	void inline_size
		690	fd_intern (int fd)
		691	{
		692	#ifdef _WIN32
		693	int arg = 1;
		694	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		695	#else
		696	fcntl (fd, F_SETFD, FD_CLOEXEC);
		697	fcntl (fd, F_SETFL, O_NONBLOCK);
		698	#endif
		699	}
		700
		701	static void noinline
635	siginit (EV_P)	702	siginit (EV_P)
636	{	703	{
637	#ifndef WIN32	704	fd_intern (sigpipe [0]);
638	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	705	fd_intern (sigpipe [1]);
639	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
640
641	/* rather than sort out wether we really need nb, set it */
642	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
643	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
644	#endif
645		706
646	ev_io_set (&sigev, sigpipe [0], EV_READ);	707	ev_io_set (&sigev, sigpipe [0], EV_READ);
647	ev_io_start (EV_A_ &sigev);	708	ev_io_start (EV_A_ &sigev);
648	ev_unref (EV_A); /* child watcher should not keep loop alive */	709	ev_unref (EV_A); /* child watcher should not keep loop alive */
649	}	710	}
650		711
651	/*****************************************************************************/	712	/*****************************************************************************/
652		713
653	static struct ev_child *childs [PID_HASHSIZE];	714	static ev_child *childs [PID_HASHSIZE];
654		715
655	#ifndef WIN32	716	#ifndef _WIN32
656		717
657	static struct ev_signal childev;	718	static ev_signal childev;
658		719
659	#ifndef WCONTINUED	720	void inline_speed
660	# define WCONTINUED 0
661	#endif
662
663	static void
664	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	721	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
665	{	722	{
666	struct ev_child *w;	723	ev_child *w;
667		724
668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	725	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
669	if (w->pid == pid \|\| !w->pid)	726	if (w->pid == pid \|\| !w->pid)
670	{	727	{
671	ev_priority (w) = ev_priority (sw); /* need to do it now */	728	ev_priority (w) = ev_priority (sw); /* need to do it now */
672	w->rpid = pid;	729	w->rpid = pid;
673	w->rstatus = status;	730	w->rstatus = status;
674	ev_feed_event (EV_A_ (W)w, EV_CHILD);	731	ev_feed_event (EV_A_ (W)w, EV_CHILD);
675	}	732	}
676	}	733	}
677		734
		735	#ifndef WCONTINUED
		736	# define WCONTINUED 0
		737	#endif
		738
678	static void	739	static void
679	childcb (EV_P_ struct ev_signal *sw, int revents)	740	childcb (EV_P_ ev_signal *sw, int revents)
680	{	741	{
681	int pid, status;	742	int pid, status;
682		743
		744	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	745	if (0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
684	{	746	if (!WCONTINUED
		747	\|\| errno != EINVAL
		748	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
		749	return;
		750
685	/* make sure we are called again until all childs have been reaped */	751	/* make sure we are called again until all childs have been reaped */
		752	/* we need to do it this way so that the callback gets called before we continue */
686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	753	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
687		754
688	child_reap (EV_A_ sw, pid, pid, status);	755	child_reap (EV_A_ sw, pid, pid, status);
689	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	756	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
690	}
691	}	757	}
692		758
693	#endif	759	#endif
694		760
695	/*****************************************************************************/	761	/*****************************************************************************/
696		762
		763	#if EV_USE_PORT
		764	# include "ev_port.c"
		765	#endif
697	#if EV_USE_KQUEUE	766	#if EV_USE_KQUEUE
698	# include "ev_kqueue.c"	767	# include "ev_kqueue.c"
699	#endif	768	#endif
700	#if EV_USE_EPOLL	769	#if EV_USE_EPOLL
701	# include "ev_epoll.c"	770	# include "ev_epoll.c"
…		…
718	{	787	{
719	return EV_VERSION_MINOR;	788	return EV_VERSION_MINOR;
720	}	789	}
721		790
722	/* return true if we are running with elevated privileges and should ignore env variables */	791	/* return true if we are running with elevated privileges and should ignore env variables */
723	static int	792	int inline_size
724	enable_secure (void)	793	enable_secure (void)
725	{	794	{
726	#ifdef WIN32	795	#ifdef _WIN32
727	return 0;	796	return 0;
728	#else	797	#else
729	return getuid () != geteuid ()	798	return getuid () != geteuid ()
730	\|\| getgid () != getegid ();	799	\|\| getgid () != getegid ();
731	#endif	800	#endif
732	}	801	}
733		802
734	int	803	unsigned int
735	ev_method (EV_P)	804	ev_supported_backends (void)
736	{	805	{
737	return method;	806	unsigned int flags = 0;
		807
		808	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
		809	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		810	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		811	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		812	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		813
		814	return flags;
		815	}
		816
		817	unsigned int
		818	ev_recommended_backends (void)
		819	{
		820	unsigned int flags = ev_supported_backends ();
		821
		822	#ifndef __NetBSD__
		823	/* kqueue is borked on everything but netbsd apparently */
		824	/* it usually doesn't work correctly on anything but sockets and pipes */
		825	flags &= ~EVBACKEND_KQUEUE;
		826	#endif
		827	#ifdef __APPLE__
		828	// flags &= ~EVBACKEND_KQUEUE; for documentation
		829	flags &= ~EVBACKEND_POLL;
		830	#endif
		831
		832	return flags;
		833	}
		834
		835	unsigned int
		836	ev_embeddable_backends (void)
		837	{
		838	return EVBACKEND_EPOLL
		839	\| EVBACKEND_KQUEUE
		840	\| EVBACKEND_PORT;
		841	}
		842
		843	unsigned int
		844	ev_backend (EV_P)
		845	{
		846	return backend;
738	}	847	}
739		848
740	static void	849	static void
741	loop_init (EV_P_ int methods)	850	loop_init (EV_P_ unsigned int flags)
742	{	851	{
743	if (!method)	852	if (!backend)
744	{	853	{
745	#if EV_USE_MONOTONIC	854	#if EV_USE_MONOTONIC
746	{	855	{
747	struct timespec ts;	856	struct timespec ts;
748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	857	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
753	ev_rt_now = ev_time ();	862	ev_rt_now = ev_time ();
754	mn_now = get_clock ();	863	mn_now = get_clock ();
755	now_floor = mn_now;	864	now_floor = mn_now;
756	rtmn_diff = ev_rt_now - mn_now;	865	rtmn_diff = ev_rt_now - mn_now;
757		866
758	if (methods == EVMETHOD_AUTO)	867	if (!(flags & EVFLAG_NOENV)
759	if (!enable_secure () && getenv ("LIBEV_METHODS"))	868	&& !enable_secure ()
		869	&& getenv ("LIBEV_FLAGS"))
760	methods = atoi (getenv ("LIBEV_METHODS"));	870	flags = atoi (getenv ("LIBEV_FLAGS"));
761	else
762	methods = EVMETHOD_ANY;
763		871
764	method = 0;	872	if (!(flags & 0x0000ffffUL))
765	#if EV_USE_WIN32	873	flags \|= ev_recommended_backends ();
766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	874
		875	backend = 0;
		876	#if EV_USE_PORT
		877	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
767	#endif	878	#endif
768	#if EV_USE_KQUEUE	879	#if EV_USE_KQUEUE
769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	880	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
770	#endif	881	#endif
771	#if EV_USE_EPOLL	882	#if EV_USE_EPOLL
772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	883	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
773	#endif	884	#endif
774	#if EV_USE_POLL	885	#if EV_USE_POLL
775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	886	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
776	#endif	887	#endif
777	#if EV_USE_SELECT	888	#if EV_USE_SELECT
778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	889	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
779	#endif	890	#endif
780		891
781	ev_init (&sigev, sigcb);	892	ev_init (&sigev, sigcb);
782	ev_set_priority (&sigev, EV_MAXPRI);	893	ev_set_priority (&sigev, EV_MAXPRI);
783	}	894	}
784	}	895	}
785		896
786	void	897	static void
787	loop_destroy (EV_P)	898	loop_destroy (EV_P)
788	{	899	{
789	int i;	900	int i;
790		901
791	#if EV_USE_WIN32	902	#if EV_USE_PORT
792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	903	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
793	#endif	904	#endif
794	#if EV_USE_KQUEUE	905	#if EV_USE_KQUEUE
795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	906	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796	#endif	907	#endif
797	#if EV_USE_EPOLL	908	#if EV_USE_EPOLL
798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	909	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799	#endif	910	#endif
800	#if EV_USE_POLL	911	#if EV_USE_POLL
801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	912	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802	#endif	913	#endif
803	#if EV_USE_SELECT	914	#if EV_USE_SELECT
804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	915	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805	#endif	916	#endif
806		917
807	for (i = NUMPRI; i--; )	918	for (i = NUMPRI; i--; )
808	array_free (pending, [i]);	919	array_free (pending, [i]);
809		920
810	/* have to use the microsoft-never-gets-it-right macro */	921	/* have to use the microsoft-never-gets-it-right macro */
811	array_free_microshit (fdchange);	922	array_free (fdchange, EMPTY0);
812	array_free_microshit (timer);	923	array_free (timer, EMPTY0);
813	#if EV_PERIODICS	924	#if EV_PERIODIC_ENABLE
814	array_free_microshit (periodic);	925	array_free (periodic, EMPTY0);
815	#endif	926	#endif
816	array_free_microshit (idle);	927	array_free (idle, EMPTY0);
817	array_free_microshit (prepare);	928	array_free (prepare, EMPTY0);
818	array_free_microshit (check);	929	array_free (check, EMPTY0);
819		930
820	method = 0;	931	backend = 0;
821	}	932	}
822		933
823	static void	934	static void
824	loop_fork (EV_P)	935	loop_fork (EV_P)
825	{	936	{
		937	#if EV_USE_PORT
		938	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		939	#endif
		940	#if EV_USE_KQUEUE
		941	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		942	#endif
826	#if EV_USE_EPOLL	943	#if EV_USE_EPOLL
827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	944	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
828	#endif
829	#if EV_USE_KQUEUE
830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
831	#endif	945	#endif
832		946
833	if (ev_is_active (&sigev))	947	if (ev_is_active (&sigev))
834	{	948	{
835	/* default loop */	949	/* default loop */
…		…
848	postfork = 0;	962	postfork = 0;
849	}	963	}
850		964
851	#if EV_MULTIPLICITY	965	#if EV_MULTIPLICITY
852	struct ev_loop *	966	struct ev_loop *
853	ev_loop_new (int methods)	967	ev_loop_new (unsigned int flags)
854	{	968	{
855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	969	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
856		970
857	memset (loop, 0, sizeof (struct ev_loop));	971	memset (loop, 0, sizeof (struct ev_loop));
858		972
859	loop_init (EV_A_ methods);	973	loop_init (EV_A_ flags);
860		974
861	if (ev_method (EV_A))	975	if (ev_backend (EV_A))
862	return loop;	976	return loop;
863		977
864	return 0;	978	return 0;
865	}	979	}
866		980
…		…
879		993
880	#endif	994	#endif
881		995
882	#if EV_MULTIPLICITY	996	#if EV_MULTIPLICITY
883	struct ev_loop *	997	struct ev_loop *
		998	ev_default_loop_init (unsigned int flags)
884	#else	999	#else
885	int	1000	int
		1001	ev_default_loop (unsigned int flags)
886	#endif	1002	#endif
887	ev_default_loop (int methods)
888	{	1003	{
889	if (sigpipe [0] == sigpipe [1])	1004	if (sigpipe [0] == sigpipe [1])
890	if (pipe (sigpipe))	1005	if (pipe (sigpipe))
891	return 0;	1006	return 0;
892		1007
893	if (!default_loop)	1008	if (!ev_default_loop_ptr)
894	{	1009	{
895	#if EV_MULTIPLICITY	1010	#if EV_MULTIPLICITY
896	struct ev_loop *loop = default_loop = &default_loop_struct;	1011	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897	#else	1012	#else
898	default_loop = 1;	1013	ev_default_loop_ptr = 1;
899	#endif	1014	#endif
900		1015
901	loop_init (EV_A_ methods);	1016	loop_init (EV_A_ flags);
902		1017
903	if (ev_method (EV_A))	1018	if (ev_backend (EV_A))
904	{	1019	{
905	siginit (EV_A);	1020	siginit (EV_A);
906		1021
907	#ifndef WIN32	1022	#ifndef _WIN32
908	ev_signal_init (&childev, childcb, SIGCHLD);	1023	ev_signal_init (&childev, childcb, SIGCHLD);
909	ev_set_priority (&childev, EV_MAXPRI);	1024	ev_set_priority (&childev, EV_MAXPRI);
910	ev_signal_start (EV_A_ &childev);	1025	ev_signal_start (EV_A_ &childev);
911	ev_unref (EV_A); /* child watcher should not keep loop alive */	1026	ev_unref (EV_A); /* child watcher should not keep loop alive */
912	#endif	1027	#endif
913	}	1028	}
914	else	1029	else
915	default_loop = 0;	1030	ev_default_loop_ptr = 0;
916	}	1031	}
917		1032
918	return default_loop;	1033	return ev_default_loop_ptr;
919	}	1034	}
920		1035
921	void	1036	void
922	ev_default_destroy (void)	1037	ev_default_destroy (void)
923	{	1038	{
924	#if EV_MULTIPLICITY	1039	#if EV_MULTIPLICITY
925	struct ev_loop *loop = default_loop;	1040	struct ev_loop *loop = ev_default_loop_ptr;
926	#endif	1041	#endif
927		1042
928	#ifndef WIN32	1043	#ifndef _WIN32
929	ev_ref (EV_A); /* child watcher */	1044	ev_ref (EV_A); /* child watcher */
930	ev_signal_stop (EV_A_ &childev);	1045	ev_signal_stop (EV_A_ &childev);
931	#endif	1046	#endif
932		1047
933	ev_ref (EV_A); /* signal watcher */	1048	ev_ref (EV_A); /* signal watcher */
…		…
941		1056
942	void	1057	void
943	ev_default_fork (void)	1058	ev_default_fork (void)
944	{	1059	{
945	#if EV_MULTIPLICITY	1060	#if EV_MULTIPLICITY
946	struct ev_loop *loop = default_loop;	1061	struct ev_loop *loop = ev_default_loop_ptr;
947	#endif	1062	#endif
948		1063
949	if (method)	1064	if (backend)
950	postfork = 1;	1065	postfork = 1;
951	}	1066	}
952		1067
953	/*****************************************************************************/	1068	/*****************************************************************************/
954		1069
955	static int	1070	int inline_size
956	any_pending (EV_P)	1071	any_pending (EV_P)
957	{	1072	{
958	int pri;	1073	int pri;
959		1074
960	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
…		…
962	return 1;	1077	return 1;
963		1078
964	return 0;	1079	return 0;
965	}	1080	}
966		1081
967	static void	1082	void inline_speed
968	call_pending (EV_P)	1083	call_pending (EV_P)
969	{	1084	{
970	int pri;	1085	int pri;
971		1086
972	for (pri = NUMPRI; pri--; )	1087	for (pri = NUMPRI; pri--; )
973	while (pendingcnt [pri])	1088	while (pendingcnt [pri])
974	{	1089	{
975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1090	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976		1091
977	if (p->w)	1092	if (expect_true (p->w))
978	{	1093	{
		1094	assert (("non-pending watcher on pending list", p->w->pending));
		1095
979	p->w->pending = 0;	1096	p->w->pending = 0;
980	EV_CB_INVOKE (p->w, p->events);	1097	EV_CB_INVOKE (p->w, p->events);
981	}	1098	}
982	}	1099	}
983	}	1100	}
984		1101
985	static void	1102	void inline_size
986	timers_reify (EV_P)	1103	timers_reify (EV_P)
987	{	1104	{
988	while (timercnt && ((WT)timers [0])->at <= mn_now)	1105	while (timercnt && ((WT)timers [0])->at <= mn_now)
989	{	1106	{
990	struct ev_timer *w = timers [0];	1107	ev_timer *w = timers [0];
991		1108
992	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1109	assert (("inactive timer on timer heap detected", ev_is_active (w)));
993		1110
994	/* first reschedule or stop timer */	1111	/* first reschedule or stop timer */
995	if (w->repeat)	1112	if (w->repeat)
…		…
1007		1124
1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1125	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009	}	1126	}
1010	}	1127	}
1011		1128
1012	#if EV_PERIODICS	1129	#if EV_PERIODIC_ENABLE
1013	static void	1130	void inline_size
1014	periodics_reify (EV_P)	1131	periodics_reify (EV_P)
1015	{	1132	{
1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1133	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017	{	1134	{
1018	struct ev_periodic *w = periodics [0];	1135	ev_periodic *w = periodics [0];
1019		1136
1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1137	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1021		1138
1022	/* first reschedule or stop timer */	1139	/* first reschedule or stop timer */
1023	if (w->reschedule_cb)	1140	if (w->reschedule_cb)
1024	{	1141	{
1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1142	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1026
1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1143	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1028	downheap ((WT *)periodics, periodiccnt, 0);	1144	downheap ((WT *)periodics, periodiccnt, 0);
1029	}	1145	}
1030	else if (w->interval)	1146	else if (w->interval)
1031	{	1147	{
…		…
1038		1154
1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1155	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1040	}	1156	}
1041	}	1157	}
1042		1158
1043	static void	1159	static void noinline
1044	periodics_reschedule (EV_P)	1160	periodics_reschedule (EV_P)
1045	{	1161	{
1046	int i;	1162	int i;
1047		1163
1048	/* adjust periodics after time jump */	1164	/* adjust periodics after time jump */
1049	for (i = 0; i < periodiccnt; ++i)	1165	for (i = 0; i < periodiccnt; ++i)
1050	{	1166	{
1051	struct ev_periodic *w = periodics [i];	1167	ev_periodic *w = periodics [i];
1052		1168
1053	if (w->reschedule_cb)	1169	if (w->reschedule_cb)
1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1170	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1055	else if (w->interval)	1171	else if (w->interval)
1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1172	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1060	for (i = periodiccnt >> 1; i--; )	1176	for (i = periodiccnt >> 1; i--; )
1061	downheap ((WT *)periodics, periodiccnt, i);	1177	downheap ((WT *)periodics, periodiccnt, i);
1062	}	1178	}
1063	#endif	1179	#endif
1064		1180
1065	inline int	1181	int inline_size
1066	time_update_monotonic (EV_P)	1182	time_update_monotonic (EV_P)
1067	{	1183	{
1068	mn_now = get_clock ();	1184	mn_now = get_clock ();
1069		1185
1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1186	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
…		…
1078	ev_rt_now = ev_time ();	1194	ev_rt_now = ev_time ();
1079	return 1;	1195	return 1;
1080	}	1196	}
1081	}	1197	}
1082		1198
1083	static void	1199	void inline_size
1084	time_update (EV_P)	1200	time_update (EV_P)
1085	{	1201	{
1086	int i;	1202	int i;
1087		1203
1088	#if EV_USE_MONOTONIC	1204	#if EV_USE_MONOTONIC
…		…
1090	{	1206	{
1091	if (time_update_monotonic (EV_A))	1207	if (time_update_monotonic (EV_A))
1092	{	1208	{
1093	ev_tstamp odiff = rtmn_diff;	1209	ev_tstamp odiff = rtmn_diff;
1094		1210
1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1211	/* loop a few times, before making important decisions.
		1212	* on the choice of "4": one iteration isn't enough,
		1213	* in case we get preempted during the calls to
		1214	* ev_time and get_clock. a second call is almost guarenteed
		1215	* to succeed in that case, though. and looping a few more times
		1216	* doesn't hurt either as we only do this on time-jumps or
		1217	* in the unlikely event of getting preempted here.
		1218	*/
		1219	for (i = 4; --i; )
1096	{	1220	{
1097	rtmn_diff = ev_rt_now - mn_now;	1221	rtmn_diff = ev_rt_now - mn_now;
1098		1222
1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1223	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1100	return; /* all is well */	1224	return; /* all is well */
…		…
1102	ev_rt_now = ev_time ();	1226	ev_rt_now = ev_time ();
1103	mn_now = get_clock ();	1227	mn_now = get_clock ();
1104	now_floor = mn_now;	1228	now_floor = mn_now;
1105	}	1229	}
1106		1230
1107	# if EV_PERIODICS	1231	# if EV_PERIODIC_ENABLE
1108	periodics_reschedule (EV_A);	1232	periodics_reschedule (EV_A);
1109	# endif	1233	# endif
1110	/* no timer adjustment, as the monotonic clock doesn't jump */	1234	/* no timer adjustment, as the monotonic clock doesn't jump */
1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1235	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1112	}	1236	}
…		…
1116	{	1240	{
1117	ev_rt_now = ev_time ();	1241	ev_rt_now = ev_time ();
1118		1242
1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1243	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1120	{	1244	{
1121	#if EV_PERIODICS	1245	#if EV_PERIODIC_ENABLE
1122	periodics_reschedule (EV_A);	1246	periodics_reschedule (EV_A);
1123	#endif	1247	#endif
1124		1248
1125	/* adjust timers. this is easy, as the offset is the same for all */	1249	/* adjust timers. this is easy, as the offset is the same for all */
1126	for (i = 0; i < timercnt; ++i)	1250	for (i = 0; i < timercnt; ++i)
…		…
1146	static int loop_done;	1270	static int loop_done;
1147		1271
1148	void	1272	void
1149	ev_loop (EV_P_ int flags)	1273	ev_loop (EV_P_ int flags)
1150	{	1274	{
1151	double block;
1152	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1275	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1276	? EVUNLOOP_ONE
		1277	: EVUNLOOP_CANCEL;
1153		1278
1154	do	1279	while (activecnt)
1155	{	1280	{
1156	/* queue check watchers (and execute them) */	1281	/* queue check watchers (and execute them) */
1157	if (expect_false (preparecnt))	1282	if (expect_false (preparecnt))
1158	{	1283	{
1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1284	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1166		1291
1167	/* update fd-related kernel structures */	1292	/* update fd-related kernel structures */
1168	fd_reify (EV_A);	1293	fd_reify (EV_A);
1169		1294
1170	/* calculate blocking time */	1295	/* calculate blocking time */
		1296	{
		1297	double block;
1171		1298
1172	/* we only need this for !monotonic clock or timers, but as we basically	1299	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1173	always have timers, we just calculate it always */	1300	block = 0.; /* do not block at all */
		1301	else
		1302	{
		1303	/* update time to cancel out callback processing overhead */
1174	#if EV_USE_MONOTONIC	1304	#if EV_USE_MONOTONIC
1175	if (expect_true (have_monotonic))	1305	if (expect_true (have_monotonic))
1176	time_update_monotonic (EV_A);	1306	time_update_monotonic (EV_A);
1177	else	1307	else
1178	#endif	1308	#endif
1179	{	1309	{
1180	ev_rt_now = ev_time ();	1310	ev_rt_now = ev_time ();
1181	mn_now = ev_rt_now;	1311	mn_now = ev_rt_now;
1182	}	1312	}
1183		1313
1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1185	block = 0.;
1186	else
1187	{
1188	block = MAX_BLOCKTIME;	1314	block = MAX_BLOCKTIME;
1189		1315
1190	if (timercnt)	1316	if (timercnt)
1191	{	1317	{
1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1318	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193	if (block > to) block = to;	1319	if (block > to) block = to;
1194	}	1320	}
1195		1321
1196	#if EV_PERIODICS	1322	#if EV_PERIODIC_ENABLE
1197	if (periodiccnt)	1323	if (periodiccnt)
1198	{	1324	{
1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1325	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1200	if (block > to) block = to;	1326	if (block > to) block = to;
1201	}	1327	}
1202	#endif	1328	#endif
1203		1329
1204	if (block < 0.) block = 0.;	1330	if (expect_false (block < 0.)) block = 0.;
1205	}	1331	}
1206		1332
1207	method_poll (EV_A_ block);	1333	backend_poll (EV_A_ block);
		1334	}
1208		1335
1209	/* update ev_rt_now, do magic */	1336	/* update ev_rt_now, do magic */
1210	time_update (EV_A);	1337	time_update (EV_A);
1211		1338
1212	/* queue pending timers and reschedule them */	1339	/* queue pending timers and reschedule them */
1213	timers_reify (EV_A); /* relative timers called last */	1340	timers_reify (EV_A); /* relative timers called last */
1214	#if EV_PERIODICS	1341	#if EV_PERIODIC_ENABLE
1215	periodics_reify (EV_A); /* absolute timers called first */	1342	periodics_reify (EV_A); /* absolute timers called first */
1216	#endif	1343	#endif
1217		1344
1218	/* queue idle watchers unless io or timers are pending */	1345	/* queue idle watchers unless other events are pending */
1219	if (idlecnt && !any_pending (EV_A))	1346	if (idlecnt && !any_pending (EV_A))
1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1347	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1221		1348
1222	/* queue check watchers, to be executed first */	1349	/* queue check watchers, to be executed first */
1223	if (checkcnt)	1350	if (expect_false (checkcnt))
1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1351	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225		1352
1226	call_pending (EV_A);	1353	call_pending (EV_A);
1227	}
1228	while (activecnt && !loop_done);
1229		1354
1230	if (loop_done != 2)	1355	if (expect_false (loop_done))
1231	loop_done = 0;	1356	break;
		1357	}
		1358
		1359	if (loop_done == EVUNLOOP_ONE)
		1360	loop_done = EVUNLOOP_CANCEL;
1232	}	1361	}
1233		1362
1234	void	1363	void
1235	ev_unloop (EV_P_ int how)	1364	ev_unloop (EV_P_ int how)
1236	{	1365	{
1237	loop_done = how;	1366	loop_done = how;
1238	}	1367	}
1239		1368
1240	/*****************************************************************************/	1369	/*****************************************************************************/
1241		1370
1242	inline void	1371	void inline_size
1243	wlist_add (WL *head, WL elem)	1372	wlist_add (WL *head, WL elem)
1244	{	1373	{
1245	elem->next = *head;	1374	elem->next = *head;
1246	*head = elem;	1375	*head = elem;
1247	}	1376	}
1248		1377
1249	inline void	1378	void inline_size
1250	wlist_del (WL *head, WL elem)	1379	wlist_del (WL *head, WL elem)
1251	{	1380	{
1252	while (*head)	1381	while (*head)
1253	{	1382	{
1254	if (*head == elem)	1383	if (*head == elem)
…		…
1259		1388
1260	head = &(*head)->next;	1389	head = &(*head)->next;
1261	}	1390	}
1262	}	1391	}
1263		1392
1264	inline void	1393	void inline_speed
1265	ev_clear_pending (EV_P_ W w)	1394	ev_clear_pending (EV_P_ W w)
1266	{	1395	{
1267	if (w->pending)	1396	if (w->pending)
1268	{	1397	{
1269	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1398	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1270	w->pending = 0;	1399	w->pending = 0;
1271	}	1400	}
1272	}	1401	}
1273		1402
1274	inline void	1403	void inline_speed
1275	ev_start (EV_P_ W w, int active)	1404	ev_start (EV_P_ W w, int active)
1276	{	1405	{
1277	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1406	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1278	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1407	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1279		1408
1280	w->active = active;	1409	w->active = active;
1281	ev_ref (EV_A);	1410	ev_ref (EV_A);
1282	}	1411	}
1283		1412
1284	inline void	1413	void inline_size
1285	ev_stop (EV_P_ W w)	1414	ev_stop (EV_P_ W w)
1286	{	1415	{
1287	ev_unref (EV_A);	1416	ev_unref (EV_A);
1288	w->active = 0;	1417	w->active = 0;
1289	}	1418	}
1290		1419
1291	/*****************************************************************************/	1420	/*****************************************************************************/
1292		1421
1293	void	1422	void
1294	ev_io_start (EV_P_ struct ev_io *w)	1423	ev_io_start (EV_P_ ev_io *w)
1295	{	1424	{
1296	int fd = w->fd;	1425	int fd = w->fd;
1297		1426
1298	if (ev_is_active (w))	1427	if (expect_false (ev_is_active (w)))
1299	return;	1428	return;
1300		1429
1301	assert (("ev_io_start called with negative fd", fd >= 0));	1430	assert (("ev_io_start called with negative fd", fd >= 0));
1302		1431
1303	ev_start (EV_A_ (W)w, 1);	1432	ev_start (EV_A_ (W)w, 1);
…		…
1306		1435
1307	fd_change (EV_A_ fd);	1436	fd_change (EV_A_ fd);
1308	}	1437	}
1309		1438
1310	void	1439	void
1311	ev_io_stop (EV_P_ struct ev_io *w)	1440	ev_io_stop (EV_P_ ev_io *w)
1312	{	1441	{
1313	ev_clear_pending (EV_A_ (W)w);	1442	ev_clear_pending (EV_A_ (W)w);
1314	if (!ev_is_active (w))	1443	if (expect_false (!ev_is_active (w)))
1315	return;	1444	return;
1316		1445
1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1446	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1318		1447
1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1448	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321		1450
1322	fd_change (EV_A_ w->fd);	1451	fd_change (EV_A_ w->fd);
1323	}	1452	}
1324		1453
1325	void	1454	void
1326	ev_timer_start (EV_P_ struct ev_timer *w)	1455	ev_timer_start (EV_P_ ev_timer *w)
1327	{	1456	{
1328	if (ev_is_active (w))	1457	if (expect_false (ev_is_active (w)))
1329	return;	1458	return;
1330		1459
1331	((WT)w)->at += mn_now;	1460	((WT)w)->at += mn_now;
1332		1461
1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1462	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1334		1463
1335	ev_start (EV_A_ (W)w, ++timercnt);	1464	ev_start (EV_A_ (W)w, ++timercnt);
1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1465	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1337	timers [timercnt - 1] = w;	1466	timers [timercnt - 1] = w;
1338	upheap ((WT *)timers, timercnt - 1);	1467	upheap ((WT *)timers, timercnt - 1);
1339		1468
1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1469	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1341	}	1470	}
1342		1471
1343	void	1472	void
1344	ev_timer_stop (EV_P_ struct ev_timer *w)	1473	ev_timer_stop (EV_P_ ev_timer *w)
1345	{	1474	{
1346	ev_clear_pending (EV_A_ (W)w);	1475	ev_clear_pending (EV_A_ (W)w);
1347	if (!ev_is_active (w))	1476	if (expect_false (!ev_is_active (w)))
1348	return;	1477	return;
1349		1478
1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1479	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351		1480
1352	if (((W)w)->active < timercnt--)	1481	if (expect_true (((W)w)->active < timercnt--))
1353	{	1482	{
1354	timers [((W)w)->active - 1] = timers [timercnt];	1483	timers [((W)w)->active - 1] = timers [timercnt];
1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1484	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1356	}	1485	}
1357		1486
1358	((WT)w)->at -= mn_now;	1487	((WT)w)->at -= mn_now;
1359		1488
1360	ev_stop (EV_A_ (W)w);	1489	ev_stop (EV_A_ (W)w);
1361	}	1490	}
1362		1491
1363	void	1492	void
1364	ev_timer_again (EV_P_ struct ev_timer *w)	1493	ev_timer_again (EV_P_ ev_timer *w)
1365	{	1494	{
1366	if (ev_is_active (w))	1495	if (ev_is_active (w))
1367	{	1496	{
1368	if (w->repeat)	1497	if (w->repeat)
		1498	{
		1499	((WT)w)->at = mn_now + w->repeat;
1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1500	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1501	}
1370	else	1502	else
1371	ev_timer_stop (EV_A_ w);	1503	ev_timer_stop (EV_A_ w);
1372	}	1504	}
1373	else if (w->repeat)	1505	else if (w->repeat)
		1506	{
		1507	w->at = w->repeat;
1374	ev_timer_start (EV_A_ w);	1508	ev_timer_start (EV_A_ w);
		1509	}
1375	}	1510	}
1376		1511
1377	#if EV_PERIODICS	1512	#if EV_PERIODIC_ENABLE
1378	void	1513	void
1379	ev_periodic_start (EV_P_ struct ev_periodic *w)	1514	ev_periodic_start (EV_P_ ev_periodic *w)
1380	{	1515	{
1381	if (ev_is_active (w))	1516	if (expect_false (ev_is_active (w)))
1382	return;	1517	return;
1383		1518
1384	if (w->reschedule_cb)	1519	if (w->reschedule_cb)
1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1520	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1386	else if (w->interval)	1521	else if (w->interval)
…		…
1389	/* this formula differs from the one in periodic_reify because we do not always round up */	1524	/* this formula differs from the one in periodic_reify because we do not always round up */
1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1525	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1391	}	1526	}
1392		1527
1393	ev_start (EV_A_ (W)w, ++periodiccnt);	1528	ev_start (EV_A_ (W)w, ++periodiccnt);
1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1529	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1395	periodics [periodiccnt - 1] = w;	1530	periodics [periodiccnt - 1] = w;
1396	upheap ((WT *)periodics, periodiccnt - 1);	1531	upheap ((WT *)periodics, periodiccnt - 1);
1397		1532
1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1533	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1399	}	1534	}
1400		1535
1401	void	1536	void
1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1537	ev_periodic_stop (EV_P_ ev_periodic *w)
1403	{	1538	{
1404	ev_clear_pending (EV_A_ (W)w);	1539	ev_clear_pending (EV_A_ (W)w);
1405	if (!ev_is_active (w))	1540	if (expect_false (!ev_is_active (w)))
1406	return;	1541	return;
1407		1542
1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1543	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1409		1544
1410	if (((W)w)->active < periodiccnt--)	1545	if (expect_true (((W)w)->active < periodiccnt--))
1411	{	1546	{
1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1547	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1548	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1414	}	1549	}
1415		1550
1416	ev_stop (EV_A_ (W)w);	1551	ev_stop (EV_A_ (W)w);
1417	}	1552	}
1418		1553
1419	void	1554	void
1420	ev_periodic_again (EV_P_ struct ev_periodic *w)	1555	ev_periodic_again (EV_P_ ev_periodic *w)
1421	{	1556	{
1422	/* TODO: use adjustheap and recalculation */	1557	/* TODO: use adjustheap and recalculation */
1423	ev_periodic_stop (EV_A_ w);	1558	ev_periodic_stop (EV_A_ w);
1424	ev_periodic_start (EV_A_ w);	1559	ev_periodic_start (EV_A_ w);
1425	}	1560	}
1426	#endif	1561	#endif
1427		1562
1428	void	1563	void
1429	ev_idle_start (EV_P_ struct ev_idle *w)	1564	ev_idle_start (EV_P_ ev_idle *w)
1430	{	1565	{
1431	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1432	return;	1567	return;
1433		1568
1434	ev_start (EV_A_ (W)w, ++idlecnt);	1569	ev_start (EV_A_ (W)w, ++idlecnt);
1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1570	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1436	idles [idlecnt - 1] = w;	1571	idles [idlecnt - 1] = w;
1437	}	1572	}
1438		1573
1439	void	1574	void
1440	ev_idle_stop (EV_P_ struct ev_idle *w)	1575	ev_idle_stop (EV_P_ ev_idle *w)
1441	{	1576	{
1442	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1444	return;	1579	return;
1445		1580
		1581	{
		1582	int active = ((W)w)->active;
1446	idles [((W)w)->active - 1] = idles [--idlecnt];	1583	idles [active - 1] = idles [--idlecnt];
		1584	((W)idles [active - 1])->active = active;
		1585	}
		1586
1447	ev_stop (EV_A_ (W)w);	1587	ev_stop (EV_A_ (W)w);
1448	}	1588	}
1449		1589
1450	void	1590	void
1451	ev_prepare_start (EV_P_ struct ev_prepare *w)	1591	ev_prepare_start (EV_P_ ev_prepare *w)
1452	{	1592	{
1453	if (ev_is_active (w))	1593	if (expect_false (ev_is_active (w)))
1454	return;	1594	return;
1455		1595
1456	ev_start (EV_A_ (W)w, ++preparecnt);	1596	ev_start (EV_A_ (W)w, ++preparecnt);
1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1597	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1458	prepares [preparecnt - 1] = w;	1598	prepares [preparecnt - 1] = w;
1459	}	1599	}
1460		1600
1461	void	1601	void
1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1602	ev_prepare_stop (EV_P_ ev_prepare *w)
1463	{	1603	{
1464	ev_clear_pending (EV_A_ (W)w);	1604	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))	1605	if (expect_false (!ev_is_active (w)))
1466	return;	1606	return;
1467		1607
		1608	{
		1609	int active = ((W)w)->active;
1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1610	prepares [active - 1] = prepares [--preparecnt];
		1611	((W)prepares [active - 1])->active = active;
		1612	}
		1613
1469	ev_stop (EV_A_ (W)w);	1614	ev_stop (EV_A_ (W)w);
1470	}	1615	}
1471		1616
1472	void	1617	void
1473	ev_check_start (EV_P_ struct ev_check *w)	1618	ev_check_start (EV_P_ ev_check *w)
1474	{	1619	{
1475	if (ev_is_active (w))	1620	if (expect_false (ev_is_active (w)))
1476	return;	1621	return;
1477		1622
1478	ev_start (EV_A_ (W)w, ++checkcnt);	1623	ev_start (EV_A_ (W)w, ++checkcnt);
1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1624	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1480	checks [checkcnt - 1] = w;	1625	checks [checkcnt - 1] = w;
1481	}	1626	}
1482		1627
1483	void	1628	void
1484	ev_check_stop (EV_P_ struct ev_check *w)	1629	ev_check_stop (EV_P_ ev_check *w)
1485	{	1630	{
1486	ev_clear_pending (EV_A_ (W)w);	1631	ev_clear_pending (EV_A_ (W)w);
1487	if (!ev_is_active (w))	1632	if (expect_false (!ev_is_active (w)))
1488	return;	1633	return;
1489		1634
		1635	{
		1636	int active = ((W)w)->active;
1490	checks [((W)w)->active - 1] = checks [--checkcnt];	1637	checks [active - 1] = checks [--checkcnt];
		1638	((W)checks [active - 1])->active = active;
		1639	}
		1640
1491	ev_stop (EV_A_ (W)w);	1641	ev_stop (EV_A_ (W)w);
1492	}	1642	}
1493		1643
1494	#ifndef SA_RESTART	1644	#ifndef SA_RESTART
1495	# define SA_RESTART 0	1645	# define SA_RESTART 0
1496	#endif	1646	#endif
1497		1647
1498	void	1648	void
1499	ev_signal_start (EV_P_ struct ev_signal *w)	1649	ev_signal_start (EV_P_ ev_signal *w)
1500	{	1650	{
1501	#if EV_MULTIPLICITY	1651	#if EV_MULTIPLICITY
1502	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1652	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503	#endif	1653	#endif
1504	if (ev_is_active (w))	1654	if (expect_false (ev_is_active (w)))
1505	return;	1655	return;
1506		1656
1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1657	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1508		1658
1509	ev_start (EV_A_ (W)w, 1);	1659	ev_start (EV_A_ (W)w, 1);
1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1660	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1661	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1512		1662
1513	if (!((WL)w)->next)	1663	if (!((WL)w)->next)
1514	{	1664	{
1515	#if WIN32	1665	#if _WIN32
1516	signal (w->signum, sighandler);	1666	signal (w->signum, sighandler);
1517	#else	1667	#else
1518	struct sigaction sa;	1668	struct sigaction sa;
1519	sa.sa_handler = sighandler;	1669	sa.sa_handler = sighandler;
1520	sigfillset (&sa.sa_mask);	1670	sigfillset (&sa.sa_mask);
…		…
1523	#endif	1673	#endif
1524	}	1674	}
1525	}	1675	}
1526		1676
1527	void	1677	void
1528	ev_signal_stop (EV_P_ struct ev_signal *w)	1678	ev_signal_stop (EV_P_ ev_signal *w)
1529	{	1679	{
1530	ev_clear_pending (EV_A_ (W)w);	1680	ev_clear_pending (EV_A_ (W)w);
1531	if (!ev_is_active (w))	1681	if (expect_false (!ev_is_active (w)))
1532	return;	1682	return;
1533		1683
1534	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1684	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1535	ev_stop (EV_A_ (W)w);	1685	ev_stop (EV_A_ (W)w);
1536		1686
1537	if (!signals [w->signum - 1].head)	1687	if (!signals [w->signum - 1].head)
1538	signal (w->signum, SIG_DFL);	1688	signal (w->signum, SIG_DFL);
1539	}	1689	}
1540		1690
1541	void	1691	void
1542	ev_child_start (EV_P_ struct ev_child *w)	1692	ev_child_start (EV_P_ ev_child *w)
1543	{	1693	{
1544	#if EV_MULTIPLICITY	1694	#if EV_MULTIPLICITY
1545	assert (("child watchers are only supported in the default loop", loop == default_loop));	1695	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1546	#endif	1696	#endif
1547	if (ev_is_active (w))	1697	if (expect_false (ev_is_active (w)))
1548	return;	1698	return;
1549		1699
1550	ev_start (EV_A_ (W)w, 1);	1700	ev_start (EV_A_ (W)w, 1);
1551	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1701	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1552	}	1702	}
1553		1703
1554	void	1704	void
1555	ev_child_stop (EV_P_ struct ev_child *w)	1705	ev_child_stop (EV_P_ ev_child *w)
1556	{	1706	{
1557	ev_clear_pending (EV_A_ (W)w);	1707	ev_clear_pending (EV_A_ (W)w);
1558	if (!ev_is_active (w))	1708	if (expect_false (!ev_is_active (w)))
1559	return;	1709	return;
1560		1710
1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1711	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1562	ev_stop (EV_A_ (W)w);	1712	ev_stop (EV_A_ (W)w);
1563	}	1713	}
1564		1714
		1715	#if EV_EMBED_ENABLE
		1716	void noinline
		1717	ev_embed_sweep (EV_P_ ev_embed *w)
		1718	{
		1719	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1720	}
		1721
		1722	static void
		1723	embed_cb (EV_P_ ev_io *io, int revents)
		1724	{
		1725	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
		1726
		1727	if (ev_cb (w))
		1728	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1729	else
		1730	ev_embed_sweep (loop, w);
		1731	}
		1732
		1733	void
		1734	ev_embed_start (EV_P_ ev_embed *w)
		1735	{
		1736	if (expect_false (ev_is_active (w)))
		1737	return;
		1738
		1739	{
		1740	struct ev_loop *loop = w->loop;
		1741	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1742	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1743	}
		1744
		1745	ev_set_priority (&w->io, ev_priority (w));
		1746	ev_io_start (EV_A_ &w->io);
		1747
		1748	ev_start (EV_A_ (W)w, 1);
		1749	}
		1750
		1751	void
		1752	ev_embed_stop (EV_P_ ev_embed *w)
		1753	{
		1754	ev_clear_pending (EV_A_ (W)w);
		1755	if (expect_false (!ev_is_active (w)))
		1756	return;
		1757
		1758	ev_io_stop (EV_A_ &w->io);
		1759
		1760	ev_stop (EV_A_ (W)w);
		1761	}
		1762	#endif
		1763
		1764	#if EV_STAT_ENABLE
		1765
		1766	# ifdef _WIN32
		1767	# define lstat(a,b) stat(a,b)
		1768	# endif
		1769
		1770	void
		1771	ev_stat_stat (EV_P_ ev_stat *w)
		1772	{
		1773	if (lstat (w->path, &w->attr) < 0)
		1774	w->attr.st_nlink = 0;
		1775	else if (!w->attr.st_nlink)
		1776	w->attr.st_nlink = 1;
		1777	}
		1778
		1779	static void
		1780	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1781	{
		1782	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
		1783
		1784	/* we copy this here each the time so that */
		1785	/* prev has the old value when the callback gets invoked */
		1786	w->prev = w->attr;
		1787	ev_stat_stat (EV_A_ w);
		1788
		1789	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
		1790	ev_feed_event (EV_A_ w, EV_STAT);
		1791	}
		1792
		1793	void
		1794	ev_stat_start (EV_P_ ev_stat *w)
		1795	{
		1796	if (expect_false (ev_is_active (w)))
		1797	return;
		1798
		1799	/* since we use memcmp, we need to clear any padding data etc. */
		1800	memset (&w->prev, 0, sizeof (ev_statdata));
		1801	memset (&w->attr, 0, sizeof (ev_statdata));
		1802
		1803	ev_stat_stat (EV_A_ w);
		1804
		1805	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1806	ev_set_priority (&w->timer, ev_priority (w));
		1807	ev_timer_start (EV_A_ &w->timer);
		1808
		1809	ev_start (EV_A_ (W)w, 1);
		1810	}
		1811
		1812	void
		1813	ev_stat_stop (EV_P_ ev_stat *w)
		1814	{
		1815	ev_clear_pending (EV_A_ (W)w);
		1816	if (expect_false (!ev_is_active (w)))
		1817	return;
		1818
		1819	ev_timer_stop (EV_A_ &w->timer);
		1820
		1821	ev_stop (EV_A_ (W)w);
		1822	}
		1823	#endif
		1824
1565	/*****************************************************************************/	1825	/*****************************************************************************/
1566		1826
1567	struct ev_once	1827	struct ev_once
1568	{	1828	{
1569	struct ev_io io;	1829	ev_io io;
1570	struct ev_timer to;	1830	ev_timer to;
1571	void (cb)(int revents, void arg);	1831	void (cb)(int revents, void arg);
1572	void *arg;	1832	void *arg;
1573	};	1833	};
1574		1834
1575	static void	1835	static void
…		…
1584		1844
1585	cb (revents, arg);	1845	cb (revents, arg);
1586	}	1846	}
1587		1847
1588	static void	1848	static void
1589	once_cb_io (EV_P_ struct ev_io *w, int revents)	1849	once_cb_io (EV_P_ ev_io *w, int revents)
1590	{	1850	{
1591	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1851	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1592	}	1852	}
1593		1853
1594	static void	1854	static void
1595	once_cb_to (EV_P_ struct ev_timer *w, int revents)	1855	once_cb_to (EV_P_ ev_timer *w, int revents)
1596	{	1856	{
1597	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1857	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1598	}	1858	}
1599		1859
1600	void	1860	void
1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1861	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1602	{	1862	{
1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1863	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1604		1864
1605	if (!once)	1865	if (expect_false (!once))
		1866	{
1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1867	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1607	else	1868	return;
1608	{	1869	}
		1870
1609	once->cb = cb;	1871	once->cb = cb;
1610	once->arg = arg;	1872	once->arg = arg;
1611		1873
1612	ev_init (&once->io, once_cb_io);	1874	ev_init (&once->io, once_cb_io);
1613	if (fd >= 0)	1875	if (fd >= 0)
1614	{	1876	{
1615	ev_io_set (&once->io, fd, events);	1877	ev_io_set (&once->io, fd, events);
1616	ev_io_start (EV_A_ &once->io);	1878	ev_io_start (EV_A_ &once->io);
1617	}	1879	}
1618		1880
1619	ev_init (&once->to, once_cb_to);	1881	ev_init (&once->to, once_cb_to);
1620	if (timeout >= 0.)	1882	if (timeout >= 0.)
1621	{	1883	{
1622	ev_timer_set (&once->to, timeout, 0.);	1884	ev_timer_set (&once->to, timeout, 0.);
1623	ev_timer_start (EV_A_ &once->to);	1885	ev_timer_start (EV_A_ &once->to);
1624	}
1625	}	1886	}
1626	}	1887	}
1627		1888
1628	#ifdef __cplusplus	1889	#ifdef __cplusplus
1629	}	1890	}

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Comparing libev/ev.c (file contents): Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs. Revision 1.142 by root, Tue Nov 27 06:19:08 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs.
Revision 1.142 by root, Tue Nov 27 06:19:08 2007 UTC