[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 1.141 by root, Mon Nov 26 20:33:58 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	#ifndef WCONTINUED
660	# define WCONTINUED 0	721	# define WCONTINUED 0
661	#endif	722	#endif
662		723
663	static void	724	void inline_speed
664	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	725	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
665	{	726	{
666	struct ev_child *w;	727	ev_child *w;
667		728
668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	729	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
669	if (w->pid == pid \|\| !w->pid)	730	if (w->pid == pid \|\| !w->pid)
670	{	731	{
671	ev_priority (w) = ev_priority (sw); /* need to do it now */	732	ev_priority (w) = ev_priority (sw); /* need to do it now */
672	w->rpid = pid;	733	w->rpid = pid;
673	w->rstatus = status;	734	w->rstatus = status;
674	ev_feed_event (EV_A_ (W)w, EV_CHILD);	735	ev_feed_event (EV_A_ (W)w, EV_CHILD);
675	}	736	}
676	}	737	}
677		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
683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	744	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
684	{	745	{
685	/* make sure we are called again until all childs have been reaped */	746	/* make sure we are called again until all childs have been reaped */
		747	/* 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);	748	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
687		749
688	child_reap (EV_A_ sw, pid, pid, status);	750	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 */	751	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
690	}	752	}
691	}	753	}
692		754
693	#endif	755	#endif
694		756
695	/*****************************************************************************/	757	/*****************************************************************************/
696		758
		759	#if EV_USE_PORT
		760	# include "ev_port.c"
		761	#endif
697	#if EV_USE_KQUEUE	762	#if EV_USE_KQUEUE
698	# include "ev_kqueue.c"	763	# include "ev_kqueue.c"
699	#endif	764	#endif
700	#if EV_USE_EPOLL	765	#if EV_USE_EPOLL
701	# include "ev_epoll.c"	766	# include "ev_epoll.c"
…		…
718	{	783	{
719	return EV_VERSION_MINOR;	784	return EV_VERSION_MINOR;
720	}	785	}
721		786
722	/* return true if we are running with elevated privileges and should ignore env variables */	787	/* return true if we are running with elevated privileges and should ignore env variables */
723	static int	788	int inline_size
724	enable_secure (void)	789	enable_secure (void)
725	{	790	{
726	#ifdef WIN32	791	#ifdef _WIN32
727	return 0;	792	return 0;
728	#else	793	#else
729	return getuid () != geteuid ()	794	return getuid () != geteuid ()
730	\|\| getgid () != getegid ();	795	\|\| getgid () != getegid ();
731	#endif	796	#endif
732	}	797	}
733		798
734	int	799	unsigned int
735	ev_method (EV_P)	800	ev_supported_backends (void)
736	{	801	{
737	return method;	802	unsigned int flags = 0;
		803
		804	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
		805	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		806	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		807	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		808	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		809
		810	return flags;
		811	}
		812
		813	unsigned int
		814	ev_recommended_backends (void)
		815	{
		816	unsigned int flags = ev_supported_backends ();
		817
		818	#ifndef __NetBSD__
		819	/* kqueue is borked on everything but netbsd apparently */
		820	/* it usually doesn't work correctly on anything but sockets and pipes */
		821	flags &= ~EVBACKEND_KQUEUE;
		822	#endif
		823	#ifdef __APPLE__
		824	// flags &= ~EVBACKEND_KQUEUE; for documentation
		825	flags &= ~EVBACKEND_POLL;
		826	#endif
		827
		828	return flags;
		829	}
		830
		831	unsigned int
		832	ev_embeddable_backends (void)
		833	{
		834	return EVBACKEND_EPOLL
		835	\| EVBACKEND_KQUEUE
		836	\| EVBACKEND_PORT;
		837	}
		838
		839	unsigned int
		840	ev_backend (EV_P)
		841	{
		842	return backend;
738	}	843	}
739		844
740	static void	845	static void
741	loop_init (EV_P_ int methods)	846	loop_init (EV_P_ unsigned int flags)
742	{	847	{
743	if (!method)	848	if (!backend)
744	{	849	{
745	#if EV_USE_MONOTONIC	850	#if EV_USE_MONOTONIC
746	{	851	{
747	struct timespec ts;	852	struct timespec ts;
748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	853	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
753	ev_rt_now = ev_time ();	858	ev_rt_now = ev_time ();
754	mn_now = get_clock ();	859	mn_now = get_clock ();
755	now_floor = mn_now;	860	now_floor = mn_now;
756	rtmn_diff = ev_rt_now - mn_now;	861	rtmn_diff = ev_rt_now - mn_now;
757		862
758	if (methods == EVMETHOD_AUTO)	863	if (!(flags & EVFLAG_NOENV)
759	if (!enable_secure () && getenv ("LIBEV_METHODS"))	864	&& !enable_secure ()
		865	&& getenv ("LIBEV_FLAGS"))
760	methods = atoi (getenv ("LIBEV_METHODS"));	866	flags = atoi (getenv ("LIBEV_FLAGS"));
761	else
762	methods = EVMETHOD_ANY;
763		867
764	method = 0;	868	if (!(flags & 0x0000ffffUL))
765	#if EV_USE_WIN32	869	flags \|= ev_recommended_backends ();
766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	870
		871	backend = 0;
		872	#if EV_USE_PORT
		873	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
767	#endif	874	#endif
768	#if EV_USE_KQUEUE	875	#if EV_USE_KQUEUE
769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	876	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
770	#endif	877	#endif
771	#if EV_USE_EPOLL	878	#if EV_USE_EPOLL
772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	879	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
773	#endif	880	#endif
774	#if EV_USE_POLL	881	#if EV_USE_POLL
775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	882	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
776	#endif	883	#endif
777	#if EV_USE_SELECT	884	#if EV_USE_SELECT
778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	885	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
779	#endif	886	#endif
780		887
781	ev_init (&sigev, sigcb);	888	ev_init (&sigev, sigcb);
782	ev_set_priority (&sigev, EV_MAXPRI);	889	ev_set_priority (&sigev, EV_MAXPRI);
783	}	890	}
784	}	891	}
785		892
786	void	893	static void
787	loop_destroy (EV_P)	894	loop_destroy (EV_P)
788	{	895	{
789	int i;	896	int i;
790		897
791	#if EV_USE_WIN32	898	#if EV_USE_PORT
792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	899	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
793	#endif	900	#endif
794	#if EV_USE_KQUEUE	901	#if EV_USE_KQUEUE
795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	902	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796	#endif	903	#endif
797	#if EV_USE_EPOLL	904	#if EV_USE_EPOLL
798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	905	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799	#endif	906	#endif
800	#if EV_USE_POLL	907	#if EV_USE_POLL
801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	908	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802	#endif	909	#endif
803	#if EV_USE_SELECT	910	#if EV_USE_SELECT
804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	911	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805	#endif	912	#endif
806		913
807	for (i = NUMPRI; i--; )	914	for (i = NUMPRI; i--; )
808	array_free (pending, [i]);	915	array_free (pending, [i]);
809		916
810	/* have to use the microsoft-never-gets-it-right macro */	917	/* have to use the microsoft-never-gets-it-right macro */
811	array_free_microshit (fdchange);	918	array_free (fdchange, EMPTY0);
812	array_free_microshit (timer);	919	array_free (timer, EMPTY0);
813	#if EV_PERIODICS	920	#if EV_PERIODIC_ENABLE
814	array_free_microshit (periodic);	921	array_free (periodic, EMPTY0);
815	#endif	922	#endif
816	array_free_microshit (idle);	923	array_free (idle, EMPTY0);
817	array_free_microshit (prepare);	924	array_free (prepare, EMPTY0);
818	array_free_microshit (check);	925	array_free (check, EMPTY0);
819		926
820	method = 0;	927	backend = 0;
821	}	928	}
822		929
823	static void	930	static void
824	loop_fork (EV_P)	931	loop_fork (EV_P)
825	{	932	{
		933	#if EV_USE_PORT
		934	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		935	#endif
		936	#if EV_USE_KQUEUE
		937	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		938	#endif
826	#if EV_USE_EPOLL	939	#if EV_USE_EPOLL
827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	940	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	941	#endif
832		942
833	if (ev_is_active (&sigev))	943	if (ev_is_active (&sigev))
834	{	944	{
835	/* default loop */	945	/* default loop */
…		…
848	postfork = 0;	958	postfork = 0;
849	}	959	}
850		960
851	#if EV_MULTIPLICITY	961	#if EV_MULTIPLICITY
852	struct ev_loop *	962	struct ev_loop *
853	ev_loop_new (int methods)	963	ev_loop_new (unsigned int flags)
854	{	964	{
855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	965	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
856		966
857	memset (loop, 0, sizeof (struct ev_loop));	967	memset (loop, 0, sizeof (struct ev_loop));
858		968
859	loop_init (EV_A_ methods);	969	loop_init (EV_A_ flags);
860		970
861	if (ev_method (EV_A))	971	if (ev_backend (EV_A))
862	return loop;	972	return loop;
863		973
864	return 0;	974	return 0;
865	}	975	}
866		976
…		…
879		989
880	#endif	990	#endif
881		991
882	#if EV_MULTIPLICITY	992	#if EV_MULTIPLICITY
883	struct ev_loop *	993	struct ev_loop *
		994	ev_default_loop_init (unsigned int flags)
884	#else	995	#else
885	int	996	int
		997	ev_default_loop (unsigned int flags)
886	#endif	998	#endif
887	ev_default_loop (int methods)
888	{	999	{
889	if (sigpipe [0] == sigpipe [1])	1000	if (sigpipe [0] == sigpipe [1])
890	if (pipe (sigpipe))	1001	if (pipe (sigpipe))
891	return 0;	1002	return 0;
892		1003
893	if (!default_loop)	1004	if (!ev_default_loop_ptr)
894	{	1005	{
895	#if EV_MULTIPLICITY	1006	#if EV_MULTIPLICITY
896	struct ev_loop *loop = default_loop = &default_loop_struct;	1007	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897	#else	1008	#else
898	default_loop = 1;	1009	ev_default_loop_ptr = 1;
899	#endif	1010	#endif
900		1011
901	loop_init (EV_A_ methods);	1012	loop_init (EV_A_ flags);
902		1013
903	if (ev_method (EV_A))	1014	if (ev_backend (EV_A))
904	{	1015	{
905	siginit (EV_A);	1016	siginit (EV_A);
906		1017
907	#ifndef WIN32	1018	#ifndef _WIN32
908	ev_signal_init (&childev, childcb, SIGCHLD);	1019	ev_signal_init (&childev, childcb, SIGCHLD);
909	ev_set_priority (&childev, EV_MAXPRI);	1020	ev_set_priority (&childev, EV_MAXPRI);
910	ev_signal_start (EV_A_ &childev);	1021	ev_signal_start (EV_A_ &childev);
911	ev_unref (EV_A); /* child watcher should not keep loop alive */	1022	ev_unref (EV_A); /* child watcher should not keep loop alive */
912	#endif	1023	#endif
913	}	1024	}
914	else	1025	else
915	default_loop = 0;	1026	ev_default_loop_ptr = 0;
916	}	1027	}
917		1028
918	return default_loop;	1029	return ev_default_loop_ptr;
919	}	1030	}
920		1031
921	void	1032	void
922	ev_default_destroy (void)	1033	ev_default_destroy (void)
923	{	1034	{
924	#if EV_MULTIPLICITY	1035	#if EV_MULTIPLICITY
925	struct ev_loop *loop = default_loop;	1036	struct ev_loop *loop = ev_default_loop_ptr;
926	#endif	1037	#endif
927		1038
928	#ifndef WIN32	1039	#ifndef _WIN32
929	ev_ref (EV_A); /* child watcher */	1040	ev_ref (EV_A); /* child watcher */
930	ev_signal_stop (EV_A_ &childev);	1041	ev_signal_stop (EV_A_ &childev);
931	#endif	1042	#endif
932		1043
933	ev_ref (EV_A); /* signal watcher */	1044	ev_ref (EV_A); /* signal watcher */
…		…
941		1052
942	void	1053	void
943	ev_default_fork (void)	1054	ev_default_fork (void)
944	{	1055	{
945	#if EV_MULTIPLICITY	1056	#if EV_MULTIPLICITY
946	struct ev_loop *loop = default_loop;	1057	struct ev_loop *loop = ev_default_loop_ptr;
947	#endif	1058	#endif
948		1059
949	if (method)	1060	if (backend)
950	postfork = 1;	1061	postfork = 1;
951	}	1062	}
952		1063
953	/*****************************************************************************/	1064	/*****************************************************************************/
954		1065
955	static int	1066	int inline_size
956	any_pending (EV_P)	1067	any_pending (EV_P)
957	{	1068	{
958	int pri;	1069	int pri;
959		1070
960	for (pri = NUMPRI; pri--; )	1071	for (pri = NUMPRI; pri--; )
…		…
962	return 1;	1073	return 1;
963		1074
964	return 0;	1075	return 0;
965	}	1076	}
966		1077
967	static void	1078	void inline_speed
968	call_pending (EV_P)	1079	call_pending (EV_P)
969	{	1080	{
970	int pri;	1081	int pri;
971		1082
972	for (pri = NUMPRI; pri--; )	1083	for (pri = NUMPRI; pri--; )
973	while (pendingcnt [pri])	1084	while (pendingcnt [pri])
974	{	1085	{
975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1086	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976		1087
977	if (p->w)	1088	if (expect_true (p->w))
978	{	1089	{
		1090	assert (("non-pending watcher on pending list", p->w->pending));
		1091
979	p->w->pending = 0;	1092	p->w->pending = 0;
980	EV_CB_INVOKE (p->w, p->events);	1093	EV_CB_INVOKE (p->w, p->events);
981	}	1094	}
982	}	1095	}
983	}	1096	}
984		1097
985	static void	1098	void inline_size
986	timers_reify (EV_P)	1099	timers_reify (EV_P)
987	{	1100	{
988	while (timercnt && ((WT)timers [0])->at <= mn_now)	1101	while (timercnt && ((WT)timers [0])->at <= mn_now)
989	{	1102	{
990	struct ev_timer *w = timers [0];	1103	ev_timer *w = timers [0];
991		1104
992	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1105	assert (("inactive timer on timer heap detected", ev_is_active (w)));
993		1106
994	/* first reschedule or stop timer */	1107	/* first reschedule or stop timer */
995	if (w->repeat)	1108	if (w->repeat)
…		…
1007		1120
1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1121	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009	}	1122	}
1010	}	1123	}
1011		1124
1012	#if EV_PERIODICS	1125	#if EV_PERIODIC_ENABLE
1013	static void	1126	void inline_size
1014	periodics_reify (EV_P)	1127	periodics_reify (EV_P)
1015	{	1128	{
1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1129	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017	{	1130	{
1018	struct ev_periodic *w = periodics [0];	1131	ev_periodic *w = periodics [0];
1019		1132
1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1133	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1021		1134
1022	/* first reschedule or stop timer */	1135	/* first reschedule or stop timer */
1023	if (w->reschedule_cb)	1136	if (w->reschedule_cb)
1024	{	1137	{
1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1138	((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));	1139	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1028	downheap ((WT *)periodics, periodiccnt, 0);	1140	downheap ((WT *)periodics, periodiccnt, 0);
1029	}	1141	}
1030	else if (w->interval)	1142	else if (w->interval)
1031	{	1143	{
…		…
1038		1150
1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1151	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1040	}	1152	}
1041	}	1153	}
1042		1154
1043	static void	1155	static void noinline
1044	periodics_reschedule (EV_P)	1156	periodics_reschedule (EV_P)
1045	{	1157	{
1046	int i;	1158	int i;
1047		1159
1048	/* adjust periodics after time jump */	1160	/* adjust periodics after time jump */
1049	for (i = 0; i < periodiccnt; ++i)	1161	for (i = 0; i < periodiccnt; ++i)
1050	{	1162	{
1051	struct ev_periodic *w = periodics [i];	1163	ev_periodic *w = periodics [i];
1052		1164
1053	if (w->reschedule_cb)	1165	if (w->reschedule_cb)
1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1166	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1055	else if (w->interval)	1167	else if (w->interval)
1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1168	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1060	for (i = periodiccnt >> 1; i--; )	1172	for (i = periodiccnt >> 1; i--; )
1061	downheap ((WT *)periodics, periodiccnt, i);	1173	downheap ((WT *)periodics, periodiccnt, i);
1062	}	1174	}
1063	#endif	1175	#endif
1064		1176
1065	inline int	1177	int inline_size
1066	time_update_monotonic (EV_P)	1178	time_update_monotonic (EV_P)
1067	{	1179	{
1068	mn_now = get_clock ();	1180	mn_now = get_clock ();
1069		1181
1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1182	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
…		…
1078	ev_rt_now = ev_time ();	1190	ev_rt_now = ev_time ();
1079	return 1;	1191	return 1;
1080	}	1192	}
1081	}	1193	}
1082		1194
1083	static void	1195	void inline_size
1084	time_update (EV_P)	1196	time_update (EV_P)
1085	{	1197	{
1086	int i;	1198	int i;
1087		1199
1088	#if EV_USE_MONOTONIC	1200	#if EV_USE_MONOTONIC
…		…
1090	{	1202	{
1091	if (time_update_monotonic (EV_A))	1203	if (time_update_monotonic (EV_A))
1092	{	1204	{
1093	ev_tstamp odiff = rtmn_diff;	1205	ev_tstamp odiff = rtmn_diff;
1094		1206
1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1207	/* loop a few times, before making important decisions.
		1208	* on the choice of "4": one iteration isn't enough,
		1209	* in case we get preempted during the calls to
		1210	* ev_time and get_clock. a second call is almost guarenteed
		1211	* to succeed in that case, though. and looping a few more times
		1212	* doesn't hurt either as we only do this on time-jumps or
		1213	* in the unlikely event of getting preempted here.
		1214	*/
		1215	for (i = 4; --i; )
1096	{	1216	{
1097	rtmn_diff = ev_rt_now - mn_now;	1217	rtmn_diff = ev_rt_now - mn_now;
1098		1218
1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1219	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1100	return; /* all is well */	1220	return; /* all is well */
…		…
1102	ev_rt_now = ev_time ();	1222	ev_rt_now = ev_time ();
1103	mn_now = get_clock ();	1223	mn_now = get_clock ();
1104	now_floor = mn_now;	1224	now_floor = mn_now;
1105	}	1225	}
1106		1226
1107	# if EV_PERIODICS	1227	# if EV_PERIODIC_ENABLE
1108	periodics_reschedule (EV_A);	1228	periodics_reschedule (EV_A);
1109	# endif	1229	# endif
1110	/* no timer adjustment, as the monotonic clock doesn't jump */	1230	/* no timer adjustment, as the monotonic clock doesn't jump */
1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1231	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1112	}	1232	}
…		…
1116	{	1236	{
1117	ev_rt_now = ev_time ();	1237	ev_rt_now = ev_time ();
1118		1238
1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1239	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1120	{	1240	{
1121	#if EV_PERIODICS	1241	#if EV_PERIODIC_ENABLE
1122	periodics_reschedule (EV_A);	1242	periodics_reschedule (EV_A);
1123	#endif	1243	#endif
1124		1244
1125	/* adjust timers. this is easy, as the offset is the same for all */	1245	/* adjust timers. this is easy, as the offset is the same for all */
1126	for (i = 0; i < timercnt; ++i)	1246	for (i = 0; i < timercnt; ++i)
…		…
1146	static int loop_done;	1266	static int loop_done;
1147		1267
1148	void	1268	void
1149	ev_loop (EV_P_ int flags)	1269	ev_loop (EV_P_ int flags)
1150	{	1270	{
1151	double block;
1152	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1271	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1272	? EVUNLOOP_ONE
		1273	: EVUNLOOP_CANCEL;
1153		1274
1154	do	1275	while (activecnt)
1155	{	1276	{
1156	/* queue check watchers (and execute them) */	1277	/* queue check watchers (and execute them) */
1157	if (expect_false (preparecnt))	1278	if (expect_false (preparecnt))
1158	{	1279	{
1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1280	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1166		1287
1167	/* update fd-related kernel structures */	1288	/* update fd-related kernel structures */
1168	fd_reify (EV_A);	1289	fd_reify (EV_A);
1169		1290
1170	/* calculate blocking time */	1291	/* calculate blocking time */
		1292	{
		1293	double block;
1171		1294
1172	/* we only need this for !monotonic clock or timers, but as we basically	1295	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1173	always have timers, we just calculate it always */	1296	block = 0.; /* do not block at all */
		1297	else
		1298	{
		1299	/* update time to cancel out callback processing overhead */
1174	#if EV_USE_MONOTONIC	1300	#if EV_USE_MONOTONIC
1175	if (expect_true (have_monotonic))	1301	if (expect_true (have_monotonic))
1176	time_update_monotonic (EV_A);	1302	time_update_monotonic (EV_A);
1177	else	1303	else
1178	#endif	1304	#endif
1179	{	1305	{
1180	ev_rt_now = ev_time ();	1306	ev_rt_now = ev_time ();
1181	mn_now = ev_rt_now;	1307	mn_now = ev_rt_now;
1182	}	1308	}
1183		1309
1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1185	block = 0.;
1186	else
1187	{
1188	block = MAX_BLOCKTIME;	1310	block = MAX_BLOCKTIME;
1189		1311
1190	if (timercnt)	1312	if (timercnt)
1191	{	1313	{
1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1314	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193	if (block > to) block = to;	1315	if (block > to) block = to;
1194	}	1316	}
1195		1317
1196	#if EV_PERIODICS	1318	#if EV_PERIODIC_ENABLE
1197	if (periodiccnt)	1319	if (periodiccnt)
1198	{	1320	{
1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1321	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1200	if (block > to) block = to;	1322	if (block > to) block = to;
1201	}	1323	}
1202	#endif	1324	#endif
1203		1325
1204	if (block < 0.) block = 0.;	1326	if (expect_false (block < 0.)) block = 0.;
1205	}	1327	}
1206		1328
1207	method_poll (EV_A_ block);	1329	backend_poll (EV_A_ block);
		1330	}
1208		1331
1209	/* update ev_rt_now, do magic */	1332	/* update ev_rt_now, do magic */
1210	time_update (EV_A);	1333	time_update (EV_A);
1211		1334
1212	/* queue pending timers and reschedule them */	1335	/* queue pending timers and reschedule them */
1213	timers_reify (EV_A); /* relative timers called last */	1336	timers_reify (EV_A); /* relative timers called last */
1214	#if EV_PERIODICS	1337	#if EV_PERIODIC_ENABLE
1215	periodics_reify (EV_A); /* absolute timers called first */	1338	periodics_reify (EV_A); /* absolute timers called first */
1216	#endif	1339	#endif
1217		1340
1218	/* queue idle watchers unless io or timers are pending */	1341	/* queue idle watchers unless other events are pending */
1219	if (idlecnt && !any_pending (EV_A))	1342	if (idlecnt && !any_pending (EV_A))
1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1343	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1221		1344
1222	/* queue check watchers, to be executed first */	1345	/* queue check watchers, to be executed first */
1223	if (checkcnt)	1346	if (expect_false (checkcnt))
1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1347	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225		1348
1226	call_pending (EV_A);	1349	call_pending (EV_A);
1227	}
1228	while (activecnt && !loop_done);
1229		1350
1230	if (loop_done != 2)	1351	if (expect_false (loop_done))
1231	loop_done = 0;	1352	break;
		1353	}
		1354
		1355	if (loop_done == EVUNLOOP_ONE)
		1356	loop_done = EVUNLOOP_CANCEL;
1232	}	1357	}
1233		1358
1234	void	1359	void
1235	ev_unloop (EV_P_ int how)	1360	ev_unloop (EV_P_ int how)
1236	{	1361	{
1237	loop_done = how;	1362	loop_done = how;
1238	}	1363	}
1239		1364
1240	/*****************************************************************************/	1365	/*****************************************************************************/
1241		1366
1242	inline void	1367	void inline_size
1243	wlist_add (WL *head, WL elem)	1368	wlist_add (WL *head, WL elem)
1244	{	1369	{
1245	elem->next = *head;	1370	elem->next = *head;
1246	*head = elem;	1371	*head = elem;
1247	}	1372	}
1248		1373
1249	inline void	1374	void inline_size
1250	wlist_del (WL *head, WL elem)	1375	wlist_del (WL *head, WL elem)
1251	{	1376	{
1252	while (*head)	1377	while (*head)
1253	{	1378	{
1254	if (*head == elem)	1379	if (*head == elem)
…		…
1259		1384
1260	head = &(*head)->next;	1385	head = &(*head)->next;
1261	}	1386	}
1262	}	1387	}
1263		1388
1264	inline void	1389	void inline_speed
1265	ev_clear_pending (EV_P_ W w)	1390	ev_clear_pending (EV_P_ W w)
1266	{	1391	{
1267	if (w->pending)	1392	if (w->pending)
1268	{	1393	{
1269	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1394	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1270	w->pending = 0;	1395	w->pending = 0;
1271	}	1396	}
1272	}	1397	}
1273		1398
1274	inline void	1399	void inline_speed
1275	ev_start (EV_P_ W w, int active)	1400	ev_start (EV_P_ W w, int active)
1276	{	1401	{
1277	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1402	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1278	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1403	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1279		1404
1280	w->active = active;	1405	w->active = active;
1281	ev_ref (EV_A);	1406	ev_ref (EV_A);
1282	}	1407	}
1283		1408
1284	inline void	1409	void inline_size
1285	ev_stop (EV_P_ W w)	1410	ev_stop (EV_P_ W w)
1286	{	1411	{
1287	ev_unref (EV_A);	1412	ev_unref (EV_A);
1288	w->active = 0;	1413	w->active = 0;
1289	}	1414	}
1290		1415
1291	/*****************************************************************************/	1416	/*****************************************************************************/
1292		1417
1293	void	1418	void
1294	ev_io_start (EV_P_ struct ev_io *w)	1419	ev_io_start (EV_P_ ev_io *w)
1295	{	1420	{
1296	int fd = w->fd;	1421	int fd = w->fd;
1297		1422
1298	if (ev_is_active (w))	1423	if (expect_false (ev_is_active (w)))
1299	return;	1424	return;
1300		1425
1301	assert (("ev_io_start called with negative fd", fd >= 0));	1426	assert (("ev_io_start called with negative fd", fd >= 0));
1302		1427
1303	ev_start (EV_A_ (W)w, 1);	1428	ev_start (EV_A_ (W)w, 1);
…		…
1306		1431
1307	fd_change (EV_A_ fd);	1432	fd_change (EV_A_ fd);
1308	}	1433	}
1309		1434
1310	void	1435	void
1311	ev_io_stop (EV_P_ struct ev_io *w)	1436	ev_io_stop (EV_P_ ev_io *w)
1312	{	1437	{
1313	ev_clear_pending (EV_A_ (W)w);	1438	ev_clear_pending (EV_A_ (W)w);
1314	if (!ev_is_active (w))	1439	if (expect_false (!ev_is_active (w)))
1315	return;	1440	return;
1316		1441
1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1442	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1318		1443
1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1444	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321		1446
1322	fd_change (EV_A_ w->fd);	1447	fd_change (EV_A_ w->fd);
1323	}	1448	}
1324		1449
1325	void	1450	void
1326	ev_timer_start (EV_P_ struct ev_timer *w)	1451	ev_timer_start (EV_P_ ev_timer *w)
1327	{	1452	{
1328	if (ev_is_active (w))	1453	if (expect_false (ev_is_active (w)))
1329	return;	1454	return;
1330		1455
1331	((WT)w)->at += mn_now;	1456	((WT)w)->at += mn_now;
1332		1457
1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1458	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1334		1459
1335	ev_start (EV_A_ (W)w, ++timercnt);	1460	ev_start (EV_A_ (W)w, ++timercnt);
1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1461	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1337	timers [timercnt - 1] = w;	1462	timers [timercnt - 1] = w;
1338	upheap ((WT *)timers, timercnt - 1);	1463	upheap ((WT *)timers, timercnt - 1);
1339		1464
1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1465	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1341	}	1466	}
1342		1467
1343	void	1468	void
1344	ev_timer_stop (EV_P_ struct ev_timer *w)	1469	ev_timer_stop (EV_P_ ev_timer *w)
1345	{	1470	{
1346	ev_clear_pending (EV_A_ (W)w);	1471	ev_clear_pending (EV_A_ (W)w);
1347	if (!ev_is_active (w))	1472	if (expect_false (!ev_is_active (w)))
1348	return;	1473	return;
1349		1474
1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1475	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351		1476
1352	if (((W)w)->active < timercnt--)	1477	if (expect_true (((W)w)->active < timercnt--))
1353	{	1478	{
1354	timers [((W)w)->active - 1] = timers [timercnt];	1479	timers [((W)w)->active - 1] = timers [timercnt];
1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1480	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1356	}	1481	}
1357		1482
1358	((WT)w)->at -= mn_now;	1483	((WT)w)->at -= mn_now;
1359		1484
1360	ev_stop (EV_A_ (W)w);	1485	ev_stop (EV_A_ (W)w);
1361	}	1486	}
1362		1487
1363	void	1488	void
1364	ev_timer_again (EV_P_ struct ev_timer *w)	1489	ev_timer_again (EV_P_ ev_timer *w)
1365	{	1490	{
1366	if (ev_is_active (w))	1491	if (ev_is_active (w))
1367	{	1492	{
1368	if (w->repeat)	1493	if (w->repeat)
		1494	{
		1495	((WT)w)->at = mn_now + w->repeat;
1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1496	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1497	}
1370	else	1498	else
1371	ev_timer_stop (EV_A_ w);	1499	ev_timer_stop (EV_A_ w);
1372	}	1500	}
1373	else if (w->repeat)	1501	else if (w->repeat)
		1502	{
		1503	w->at = w->repeat;
1374	ev_timer_start (EV_A_ w);	1504	ev_timer_start (EV_A_ w);
		1505	}
1375	}	1506	}
1376		1507
1377	#if EV_PERIODICS	1508	#if EV_PERIODIC_ENABLE
1378	void	1509	void
1379	ev_periodic_start (EV_P_ struct ev_periodic *w)	1510	ev_periodic_start (EV_P_ ev_periodic *w)
1380	{	1511	{
1381	if (ev_is_active (w))	1512	if (expect_false (ev_is_active (w)))
1382	return;	1513	return;
1383		1514
1384	if (w->reschedule_cb)	1515	if (w->reschedule_cb)
1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1516	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1386	else if (w->interval)	1517	else if (w->interval)
…		…
1389	/* this formula differs from the one in periodic_reify because we do not always round up */	1520	/* 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;	1521	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1391	}	1522	}
1392		1523
1393	ev_start (EV_A_ (W)w, ++periodiccnt);	1524	ev_start (EV_A_ (W)w, ++periodiccnt);
1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1525	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1395	periodics [periodiccnt - 1] = w;	1526	periodics [periodiccnt - 1] = w;
1396	upheap ((WT *)periodics, periodiccnt - 1);	1527	upheap ((WT *)periodics, periodiccnt - 1);
1397		1528
1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1529	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1399	}	1530	}
1400		1531
1401	void	1532	void
1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1533	ev_periodic_stop (EV_P_ ev_periodic *w)
1403	{	1534	{
1404	ev_clear_pending (EV_A_ (W)w);	1535	ev_clear_pending (EV_A_ (W)w);
1405	if (!ev_is_active (w))	1536	if (expect_false (!ev_is_active (w)))
1406	return;	1537	return;
1407		1538
1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1539	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1409		1540
1410	if (((W)w)->active < periodiccnt--)	1541	if (expect_true (((W)w)->active < periodiccnt--))
1411	{	1542	{
1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1543	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1544	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1414	}	1545	}
1415		1546
1416	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1417	}	1548	}
1418		1549
1419	void	1550	void
1420	ev_periodic_again (EV_P_ struct ev_periodic *w)	1551	ev_periodic_again (EV_P_ ev_periodic *w)
1421	{	1552	{
1422	/* TODO: use adjustheap and recalculation */	1553	/* TODO: use adjustheap and recalculation */
1423	ev_periodic_stop (EV_A_ w);	1554	ev_periodic_stop (EV_A_ w);
1424	ev_periodic_start (EV_A_ w);	1555	ev_periodic_start (EV_A_ w);
1425	}	1556	}
1426	#endif	1557	#endif
1427		1558
1428	void	1559	void
1429	ev_idle_start (EV_P_ struct ev_idle *w)	1560	ev_idle_start (EV_P_ ev_idle *w)
1430	{	1561	{
1431	if (ev_is_active (w))	1562	if (expect_false (ev_is_active (w)))
1432	return;	1563	return;
1433		1564
1434	ev_start (EV_A_ (W)w, ++idlecnt);	1565	ev_start (EV_A_ (W)w, ++idlecnt);
1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1566	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1436	idles [idlecnt - 1] = w;	1567	idles [idlecnt - 1] = w;
1437	}	1568	}
1438		1569
1439	void	1570	void
1440	ev_idle_stop (EV_P_ struct ev_idle *w)	1571	ev_idle_stop (EV_P_ ev_idle *w)
1441	{	1572	{
1442	ev_clear_pending (EV_A_ (W)w);	1573	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))	1574	if (expect_false (!ev_is_active (w)))
1444	return;	1575	return;
1445		1576
		1577	{
		1578	int active = ((W)w)->active;
1446	idles [((W)w)->active - 1] = idles [--idlecnt];	1579	idles [active - 1] = idles [--idlecnt];
		1580	((W)idles [active - 1])->active = active;
		1581	}
		1582
1447	ev_stop (EV_A_ (W)w);	1583	ev_stop (EV_A_ (W)w);
1448	}	1584	}
1449		1585
1450	void	1586	void
1451	ev_prepare_start (EV_P_ struct ev_prepare *w)	1587	ev_prepare_start (EV_P_ ev_prepare *w)
1452	{	1588	{
1453	if (ev_is_active (w))	1589	if (expect_false (ev_is_active (w)))
1454	return;	1590	return;
1455		1591
1456	ev_start (EV_A_ (W)w, ++preparecnt);	1592	ev_start (EV_A_ (W)w, ++preparecnt);
1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1593	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1458	prepares [preparecnt - 1] = w;	1594	prepares [preparecnt - 1] = w;
1459	}	1595	}
1460		1596
1461	void	1597	void
1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1598	ev_prepare_stop (EV_P_ ev_prepare *w)
1463	{	1599	{
1464	ev_clear_pending (EV_A_ (W)w);	1600	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))	1601	if (expect_false (!ev_is_active (w)))
1466	return;	1602	return;
1467		1603
		1604	{
		1605	int active = ((W)w)->active;
1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1606	prepares [active - 1] = prepares [--preparecnt];
		1607	((W)prepares [active - 1])->active = active;
		1608	}
		1609
1469	ev_stop (EV_A_ (W)w);	1610	ev_stop (EV_A_ (W)w);
1470	}	1611	}
1471		1612
1472	void	1613	void
1473	ev_check_start (EV_P_ struct ev_check *w)	1614	ev_check_start (EV_P_ ev_check *w)
1474	{	1615	{
1475	if (ev_is_active (w))	1616	if (expect_false (ev_is_active (w)))
1476	return;	1617	return;
1477		1618
1478	ev_start (EV_A_ (W)w, ++checkcnt);	1619	ev_start (EV_A_ (W)w, ++checkcnt);
1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1620	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1480	checks [checkcnt - 1] = w;	1621	checks [checkcnt - 1] = w;
1481	}	1622	}
1482		1623
1483	void	1624	void
1484	ev_check_stop (EV_P_ struct ev_check *w)	1625	ev_check_stop (EV_P_ ev_check *w)
1485	{	1626	{
1486	ev_clear_pending (EV_A_ (W)w);	1627	ev_clear_pending (EV_A_ (W)w);
1487	if (!ev_is_active (w))	1628	if (expect_false (!ev_is_active (w)))
1488	return;	1629	return;
1489		1630
		1631	{
		1632	int active = ((W)w)->active;
1490	checks [((W)w)->active - 1] = checks [--checkcnt];	1633	checks [active - 1] = checks [--checkcnt];
		1634	((W)checks [active - 1])->active = active;
		1635	}
		1636
1491	ev_stop (EV_A_ (W)w);	1637	ev_stop (EV_A_ (W)w);
1492	}	1638	}
1493		1639
1494	#ifndef SA_RESTART	1640	#ifndef SA_RESTART
1495	# define SA_RESTART 0	1641	# define SA_RESTART 0
1496	#endif	1642	#endif
1497		1643
1498	void	1644	void
1499	ev_signal_start (EV_P_ struct ev_signal *w)	1645	ev_signal_start (EV_P_ ev_signal *w)
1500	{	1646	{
1501	#if EV_MULTIPLICITY	1647	#if EV_MULTIPLICITY
1502	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1648	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503	#endif	1649	#endif
1504	if (ev_is_active (w))	1650	if (expect_false (ev_is_active (w)))
1505	return;	1651	return;
1506		1652
1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1653	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1508		1654
1509	ev_start (EV_A_ (W)w, 1);	1655	ev_start (EV_A_ (W)w, 1);
1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1656	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1657	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1512		1658
1513	if (!((WL)w)->next)	1659	if (!((WL)w)->next)
1514	{	1660	{
1515	#if WIN32	1661	#if _WIN32
1516	signal (w->signum, sighandler);	1662	signal (w->signum, sighandler);
1517	#else	1663	#else
1518	struct sigaction sa;	1664	struct sigaction sa;
1519	sa.sa_handler = sighandler;	1665	sa.sa_handler = sighandler;
1520	sigfillset (&sa.sa_mask);	1666	sigfillset (&sa.sa_mask);
…		…
1523	#endif	1669	#endif
1524	}	1670	}
1525	}	1671	}
1526		1672
1527	void	1673	void
1528	ev_signal_stop (EV_P_ struct ev_signal *w)	1674	ev_signal_stop (EV_P_ ev_signal *w)
1529	{	1675	{
1530	ev_clear_pending (EV_A_ (W)w);	1676	ev_clear_pending (EV_A_ (W)w);
1531	if (!ev_is_active (w))	1677	if (expect_false (!ev_is_active (w)))
1532	return;	1678	return;
1533		1679
1534	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1680	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1535	ev_stop (EV_A_ (W)w);	1681	ev_stop (EV_A_ (W)w);
1536		1682
1537	if (!signals [w->signum - 1].head)	1683	if (!signals [w->signum - 1].head)
1538	signal (w->signum, SIG_DFL);	1684	signal (w->signum, SIG_DFL);
1539	}	1685	}
1540		1686
1541	void	1687	void
1542	ev_child_start (EV_P_ struct ev_child *w)	1688	ev_child_start (EV_P_ ev_child *w)
1543	{	1689	{
1544	#if EV_MULTIPLICITY	1690	#if EV_MULTIPLICITY
1545	assert (("child watchers are only supported in the default loop", loop == default_loop));	1691	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1546	#endif	1692	#endif
1547	if (ev_is_active (w))	1693	if (expect_false (ev_is_active (w)))
1548	return;	1694	return;
1549		1695
1550	ev_start (EV_A_ (W)w, 1);	1696	ev_start (EV_A_ (W)w, 1);
1551	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1697	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1552	}	1698	}
1553		1699
1554	void	1700	void
1555	ev_child_stop (EV_P_ struct ev_child *w)	1701	ev_child_stop (EV_P_ ev_child *w)
1556	{	1702	{
1557	ev_clear_pending (EV_A_ (W)w);	1703	ev_clear_pending (EV_A_ (W)w);
1558	if (!ev_is_active (w))	1704	if (expect_false (!ev_is_active (w)))
1559	return;	1705	return;
1560		1706
1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1707	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1562	ev_stop (EV_A_ (W)w);	1708	ev_stop (EV_A_ (W)w);
1563	}	1709	}
1564		1710
		1711	#if EV_EMBED_ENABLE
		1712	void noinline
		1713	ev_embed_sweep (EV_P_ ev_embed *w)
		1714	{
		1715	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1716	}
		1717
		1718	static void
		1719	embed_cb (EV_P_ ev_io *io, int revents)
		1720	{
		1721	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
		1722
		1723	if (ev_cb (w))
		1724	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1725	else
		1726	ev_embed_sweep (loop, w);
		1727	}
		1728
		1729	void
		1730	ev_embed_start (EV_P_ ev_embed *w)
		1731	{
		1732	if (expect_false (ev_is_active (w)))
		1733	return;
		1734
		1735	{
		1736	struct ev_loop *loop = w->loop;
		1737	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1738	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1739	}
		1740
		1741	ev_set_priority (&w->io, ev_priority (w));
		1742	ev_io_start (EV_A_ &w->io);
		1743
		1744	ev_start (EV_A_ (W)w, 1);
		1745	}
		1746
		1747	void
		1748	ev_embed_stop (EV_P_ ev_embed *w)
		1749	{
		1750	ev_clear_pending (EV_A_ (W)w);
		1751	if (expect_false (!ev_is_active (w)))
		1752	return;
		1753
		1754	ev_io_stop (EV_A_ &w->io);
		1755
		1756	ev_stop (EV_A_ (W)w);
		1757	}
		1758	#endif
		1759
		1760	#if EV_STAT_ENABLE
		1761
		1762	# ifdef _WIN32
		1763	# define lstat(a,b) stat(a,b)
		1764	# endif
		1765
		1766	void
		1767	ev_stat_stat (EV_P_ ev_stat *w)
		1768	{
		1769	if (lstat (w->path, &w->attr) < 0)
		1770	w->attr.st_nlink = 0;
		1771	else if (!w->attr.st_nlink)
		1772	w->attr.st_nlink = 1;
		1773	}
		1774
		1775	static void
		1776	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1777	{
		1778	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
		1779
		1780	/* we copy this here each the time so that */
		1781	/* prev has the old value when the callback gets invoked */
		1782	w->prev = w->attr;
		1783	ev_stat_stat (EV_A_ w);
		1784
		1785	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
		1786	ev_feed_event (EV_A_ w, EV_STAT);
		1787	}
		1788
		1789	void
		1790	ev_stat_start (EV_P_ ev_stat *w)
		1791	{
		1792	if (expect_false (ev_is_active (w)))
		1793	return;
		1794
		1795	/* since we use memcmp, we need to clear any padding data etc. */
		1796	memset (&w->prev, 0, sizeof (ev_statdata));
		1797	memset (&w->attr, 0, sizeof (ev_statdata));
		1798
		1799	ev_stat_stat (EV_A_ w);
		1800
		1801	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1802	ev_set_priority (&w->timer, ev_priority (w));
		1803	ev_timer_start (EV_A_ &w->timer);
		1804
		1805	ev_start (EV_A_ (W)w, 1);
		1806	}
		1807
		1808	void
		1809	ev_stat_stop (EV_P_ ev_stat *w)
		1810	{
		1811	ev_clear_pending (EV_A_ (W)w);
		1812	if (expect_false (!ev_is_active (w)))
		1813	return;
		1814
		1815	ev_timer_stop (EV_A_ &w->timer);
		1816
		1817	ev_stop (EV_A_ (W)w);
		1818	}
		1819	#endif
		1820
1565	/*****************************************************************************/	1821	/*****************************************************************************/
1566		1822
1567	struct ev_once	1823	struct ev_once
1568	{	1824	{
1569	struct ev_io io;	1825	ev_io io;
1570	struct ev_timer to;	1826	ev_timer to;
1571	void (cb)(int revents, void arg);	1827	void (cb)(int revents, void arg);
1572	void *arg;	1828	void *arg;
1573	};	1829	};
1574		1830
1575	static void	1831	static void
…		…
1584		1840
1585	cb (revents, arg);	1841	cb (revents, arg);
1586	}	1842	}
1587		1843
1588	static void	1844	static void
1589	once_cb_io (EV_P_ struct ev_io *w, int revents)	1845	once_cb_io (EV_P_ ev_io *w, int revents)
1590	{	1846	{
1591	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1847	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1592	}	1848	}
1593		1849
1594	static void	1850	static void
1595	once_cb_to (EV_P_ struct ev_timer *w, int revents)	1851	once_cb_to (EV_P_ ev_timer *w, int revents)
1596	{	1852	{
1597	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1853	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1598	}	1854	}
1599		1855
1600	void	1856	void
1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1857	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1602	{	1858	{
1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1859	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1604		1860
1605	if (!once)	1861	if (expect_false (!once))
		1862	{
1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1863	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1607	else	1864	return;
1608	{	1865	}
		1866
1609	once->cb = cb;	1867	once->cb = cb;
1610	once->arg = arg;	1868	once->arg = arg;
1611		1869
1612	ev_init (&once->io, once_cb_io);	1870	ev_init (&once->io, once_cb_io);
1613	if (fd >= 0)	1871	if (fd >= 0)
1614	{	1872	{
1615	ev_io_set (&once->io, fd, events);	1873	ev_io_set (&once->io, fd, events);
1616	ev_io_start (EV_A_ &once->io);	1874	ev_io_start (EV_A_ &once->io);
1617	}	1875	}
1618		1876
1619	ev_init (&once->to, once_cb_to);	1877	ev_init (&once->to, once_cb_to);
1620	if (timeout >= 0.)	1878	if (timeout >= 0.)
1621	{	1879	{
1622	ev_timer_set (&once->to, timeout, 0.);	1880	ev_timer_set (&once->to, timeout, 0.);
1623	ev_timer_start (EV_A_ &once->to);	1881	ev_timer_start (EV_A_ &once->to);
1624	}
1625	}	1882	}
1626	}	1883	}
1627		1884
1628	#ifdef __cplusplus	1885	#ifdef __cplusplus
1629	}	1886	}

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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 1.141 by root, Mon Nov 26 20:33:58 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 1.141 by root, Mon Nov 26 20:33:58 2007 UTC