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

Comparing libev/ev.c (file contents):
Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC vs.
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
32	# include "config.h"	40	# include "config.h"
		41	# endif
33		42
34	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		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
37	# endif	57	# endif
38		58
		59	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
41	# endif	65	# endif
42		66
		67	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
45	# endif	73	# endif
46		74
		75	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
49	# endif	81	# endif
50		82
		83	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# 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
		97	# endif
		98
		99	# ifndef EV_USE_INOTIFY
		100	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		101	# define EV_USE_INOTIFY 1
		102	# else
		103	# define EV_USE_INOTIFY 0
		104	# endif
53	# endif	105	# endif
54		106
55	#endif	107	#endif
56		108
57	#include <math.h>	109	#include <math.h>
…		…
66	#include <sys/types.h>	118	#include <sys/types.h>
67	#include <time.h>	119	#include <time.h>
68		120
69	#include <signal.h>	121	#include <signal.h>
70		122
		123	#ifdef EV_H
		124	# include EV_H
		125	#else
		126	# include "ev.h"
		127	#endif
		128
71	#ifndef WIN32	129	#ifndef _WIN32
72	# include <unistd.h>
73	# include <sys/time.h>	130	# include <sys/time.h>
74	# include <sys/wait.h>	131	# include <sys/wait.h>
		132	# include <unistd.h>
		133	#else
		134	# define WIN32_LEAN_AND_MEAN
		135	# include <windows.h>
		136	# ifndef EV_SELECT_IS_WINSOCKET
		137	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	138	# endif
		139	#endif
		140
76	/**/	141	/**/
77		142
78	#ifndef EV_USE_MONOTONIC	143	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	144	# define EV_USE_MONOTONIC 0
		145	#endif
		146
		147	#ifndef EV_USE_REALTIME
		148	# define EV_USE_REALTIME 0
80	#endif	149	#endif
81		150
82	#ifndef EV_USE_SELECT	151	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	152	# define EV_USE_SELECT 1
84	#endif	153	#endif
85		154
86	#ifndef EV_USE_POLL	155	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	156	# ifdef _WIN32
		157	# define EV_USE_POLL 0
		158	# else
		159	# define EV_USE_POLL 1
		160	# endif
88	#endif	161	#endif
89		162
90	#ifndef EV_USE_EPOLL	163	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	164	# define EV_USE_EPOLL 0
92	#endif	165	#endif
93		166
94	#ifndef EV_USE_KQUEUE	167	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	168	# define EV_USE_KQUEUE 0
96	#endif	169	#endif
97		170
		171	#ifndef EV_USE_PORT
		172	# define EV_USE_PORT 0
		173	#endif
		174
98	#ifndef EV_USE_WIN32	175	#ifndef EV_USE_INOTIFY
99	# ifdef WIN32	176	# define EV_USE_INOTIFY 0
100	# define EV_USE_WIN32 0 /* it does not exist, use select */	177	#endif
101	# undef EV_USE_SELECT	178
102	# define EV_USE_SELECT 1	179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
103	# else	182	# else
104	# define EV_USE_WIN32 0	183	# define EV_PID_HASHSIZE 16
105	# endif	184	# endif
106	#endif	185	#endif
107		186
108	#ifndef EV_USE_REALTIME	187	#ifndef EV_INOTIFY_HASHSIZE
109	# define EV_USE_REALTIME 1	188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
110	#endif	193	#endif
111		194
112	/**/	195	/**/
113		196
114	#ifndef CLOCK_MONOTONIC	197	#ifndef CLOCK_MONOTONIC
…		…
119	#ifndef CLOCK_REALTIME	202	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	203	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	204	# define EV_USE_REALTIME 0
122	#endif	205	#endif
123		206
		207	#if EV_SELECT_IS_WINSOCKET
		208	# include <winsock.h>
		209	#endif
		210
		211	#if !EV_STAT_ENABLE
		212	# define EV_USE_INOTIFY 0
		213	#endif
		214
		215	#if EV_USE_INOTIFY
		216	# include <sys/inotify.h>
		217	#endif
		218
124	/**/	219	/**/
125		220
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	223	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130
131	#include "ev.h"
132		224
133	#if __GNUC__ >= 3	225	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	226	# define expect(expr,value) __builtin_expect ((expr),(value))
		227	# define inline_size static inline /* inline for codesize */
		228	# if EV_MINIMAL
135	# define inline inline	229	# define noinline __attribute__ ((noinline))
		230	# define inline_speed static noinline
		231	# else
		232	# define noinline
		233	# define inline_speed static inline
		234	# endif
136	#else	235	#else
137	# define expect(expr,value) (expr)	236	# define expect(expr,value) (expr)
		237	# define inline_speed static
138	# define inline static	238	# define inline_size static
		239	# define noinline
139	#endif	240	#endif
140		241
141	#define expect_false(expr) expect ((expr) != 0, 0)	242	#define expect_false(expr) expect ((expr) != 0, 0)
142	#define expect_true(expr) expect ((expr) != 0, 1)	243	#define expect_true(expr) expect ((expr) != 0, 1)
143		244
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		247
		248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		249	#define EMPTY2(a,b) /* used to suppress some warnings */
		250
147	typedef struct ev_watcher *W;	251	typedef ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	252	typedef ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	253	typedef ev_watcher_time *WT;
150		254
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		256
		257	#ifdef _WIN32
153	#include "ev_win32.c"	258	# include "ev_win32.c"
		259	#endif
154		260
155	/*****************************************************************************/	261	/*****************************************************************************/
156		262
157	static void (syserr_cb)(const char msg);	263	static void (syserr_cb)(const char msg);
158		264
		265	void
159	void ev_set_syserr_cb (void (cb)(const char msg))	266	ev_set_syserr_cb (void (cb)(const char msg))
160	{	267	{
161	syserr_cb = cb;	268	syserr_cb = cb;
162	}	269	}
163		270
164	static void	271	static void noinline
165	syserr (const char *msg)	272	syserr (const char *msg)
166	{	273	{
167	if (!msg)	274	if (!msg)
168	msg = "(libev) system error";	275	msg = "(libev) system error";
169		276
…		…
176	}	283	}
177	}	284	}
178		285
179	static void (alloc)(void *ptr, long size);	286	static void (alloc)(void *ptr, long size);
180		287
		288	void
181	void ev_set_allocator (void (cb)(void *ptr, long size))	289	ev_set_allocator (void (cb)(void *ptr, long size))
182	{	290	{
183	alloc = cb;	291	alloc = cb;
184	}	292	}
185		293
186	static void *	294	inline_speed void *
187	ev_realloc (void *ptr, long size)	295	ev_realloc (void *ptr, long size)
188	{	296	{
189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
190		298
191	if (!ptr && size)	299	if (!ptr && size)
…		…
205	typedef struct	313	typedef struct
206	{	314	{
207	WL head;	315	WL head;
208	unsigned char events;	316	unsigned char events;
209	unsigned char reify;	317	unsigned char reify;
		318	#if EV_SELECT_IS_WINSOCKET
		319	SOCKET handle;
		320	#endif
210	} ANFD;	321	} ANFD;
211		322
212	typedef struct	323	typedef struct
213	{	324	{
214	W w;	325	W w;
215	int events;	326	int events;
216	} ANPENDING;	327	} ANPENDING;
217		328
		329	#if EV_USE_INOTIFY
		330	typedef struct
		331	{
		332	WL head;
		333	} ANFS;
		334	#endif
		335
218	#if EV_MULTIPLICITY	336	#if EV_MULTIPLICITY
219		337
220	struct ev_loop	338	struct ev_loop
221	{	339	{
		340	ev_tstamp ev_rt_now;
		341	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	342	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	343	#include "ev_vars.h"
224	};
225	# undef VAR	344	#undef VAR
		345	};
226	# include "ev_wrap.h"	346	#include "ev_wrap.h"
		347
		348	static struct ev_loop default_loop_struct;
		349	struct ev_loop *ev_default_loop_ptr;
227		350
228	#else	351	#else
229		352
		353	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	354	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	355	#include "ev_vars.h"
232	# undef VAR	356	#undef VAR
		357
		358	static int ev_default_loop_ptr;
233		359
234	#endif	360	#endif
235		361
236	/*****************************************************************************/	362	/*****************************************************************************/
237		363
238	inline ev_tstamp	364	ev_tstamp
239	ev_time (void)	365	ev_time (void)
240	{	366	{
241	#if EV_USE_REALTIME	367	#if EV_USE_REALTIME
242	struct timespec ts;	368	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	369	clock_gettime (CLOCK_REALTIME, &ts);
…		…
247	gettimeofday (&tv, 0);	373	gettimeofday (&tv, 0);
248	return tv.tv_sec + tv.tv_usec * 1e-6;	374	return tv.tv_sec + tv.tv_usec * 1e-6;
249	#endif	375	#endif
250	}	376	}
251		377
252	inline ev_tstamp	378	ev_tstamp inline_size
253	get_clock (void)	379	get_clock (void)
254	{	380	{
255	#if EV_USE_MONOTONIC	381	#if EV_USE_MONOTONIC
256	if (expect_true (have_monotonic))	382	if (expect_true (have_monotonic))
257	{	383	{
…		…
262	#endif	388	#endif
263		389
264	return ev_time ();	390	return ev_time ();
265	}	391	}
266		392
		393	#if EV_MULTIPLICITY
267	ev_tstamp	394	ev_tstamp
268	ev_now (EV_P)	395	ev_now (EV_P)
269	{	396	{
270	return rt_now;	397	return ev_rt_now;
271	}	398	}
		399	#endif
272		400
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	401	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		402
275	#define array_needsize(type,base,cur,cnt,init) \	403	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	404	if (expect_false ((cnt) > cur)) \
277	{ \	405	{ \
278	int newcnt = cur; \	406	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	421	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	422	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	424	}
297		425
298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300	#define array_free_microshit(stem) \
301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303	#define array_free(stem, idx) \	426	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		428
306	/*****************************************************************************/	429	/*****************************************************************************/
307		430
308	static void	431	void noinline
		432	ev_feed_event (EV_P_ void *w, int revents)
		433	{
		434	W w_ = (W)w;
		435
		436	if (expect_false (w_->pending))
		437	{
		438	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
		439	return;
		440	}
		441
		442	w_->pending = ++pendingcnt [ABSPRI (w_)];
		443	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
		444	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
		445	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
		446	}
		447
		448	void inline_size
		449	queue_events (EV_P_ W *events, int eventcnt, int type)
		450	{
		451	int i;
		452
		453	for (i = 0; i < eventcnt; ++i)
		454	ev_feed_event (EV_A_ events [i], type);
		455	}
		456
		457	/*****************************************************************************/
		458
		459	void inline_size
309	anfds_init (ANFD *base, int count)	460	anfds_init (ANFD *base, int count)
310	{	461	{
311	while (count--)	462	while (count--)
312	{	463	{
313	base->head = 0;	464	base->head = 0;
…		…
316		467
317	++base;	468	++base;
318	}	469	}
319	}	470	}
320		471
321	void	472	void inline_speed
322	ev_feed_event (EV_P_ void *w, int revents)
323	{
324	W w_ = (W)w;
325
326	if (w_->pending)
327	{
328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
329	return;
330	}
331
332	w_->pending = ++pendingcnt [ABSPRI (w_)];
333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336	}
337
338	static void
339	queue_events (EV_P_ W *events, int eventcnt, int type)
340	{
341	int i;
342
343	for (i = 0; i < eventcnt; ++i)
344	ev_feed_event (EV_A_ events [i], type);
345	}
346
347	inline void
348	fd_event (EV_P_ int fd, int revents)	473	fd_event (EV_P_ int fd, int revents)
349	{	474	{
350	ANFD *anfd = anfds + fd;	475	ANFD *anfd = anfds + fd;
351	struct ev_io *w;	476	ev_io *w;
352		477
353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	478	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
354	{	479	{
355	int ev = w->events & revents;	480	int ev = w->events & revents;
356		481
357	if (ev)	482	if (ev)
358	ev_feed_event (EV_A_ (W)w, ev);	483	ev_feed_event (EV_A_ (W)w, ev);
…		…
363	ev_feed_fd_event (EV_P_ int fd, int revents)	488	ev_feed_fd_event (EV_P_ int fd, int revents)
364	{	489	{
365	fd_event (EV_A_ fd, revents);	490	fd_event (EV_A_ fd, revents);
366	}	491	}
367		492
368	/*****************************************************************************/	493	void inline_size
369
370	static void
371	fd_reify (EV_P)	494	fd_reify (EV_P)
372	{	495	{
373	int i;	496	int i;
374		497
375	for (i = 0; i < fdchangecnt; ++i)	498	for (i = 0; i < fdchangecnt; ++i)
376	{	499	{
377	int fd = fdchanges [i];	500	int fd = fdchanges [i];
378	ANFD *anfd = anfds + fd;	501	ANFD *anfd = anfds + fd;
379	struct ev_io *w;	502	ev_io *w;
380		503
381	int events = 0;	504	int events = 0;
382		505
383	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	506	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
384	events \|= w->events;	507	events \|= w->events;
385		508
		509	#if EV_SELECT_IS_WINSOCKET
		510	if (events)
		511	{
		512	unsigned long argp;
		513	anfd->handle = _get_osfhandle (fd);
		514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		515	}
		516	#endif
		517
386	anfd->reify = 0;	518	anfd->reify = 0;
387		519
388	method_modify (EV_A_ fd, anfd->events, events);	520	backend_modify (EV_A_ fd, anfd->events, events);
389	anfd->events = events;	521	anfd->events = events;
390	}	522	}
391		523
392	fdchangecnt = 0;	524	fdchangecnt = 0;
393	}	525	}
394		526
395	static void	527	void inline_size
396	fd_change (EV_P_ int fd)	528	fd_change (EV_P_ int fd)
397	{	529	{
398	if (anfds [fd].reify)	530	if (expect_false (anfds [fd].reify))
399	return;	531	return;
400		532
401	anfds [fd].reify = 1;	533	anfds [fd].reify = 1;
402		534
403	++fdchangecnt;	535	++fdchangecnt;
404	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
405	fdchanges [fdchangecnt - 1] = fd;	537	fdchanges [fdchangecnt - 1] = fd;
406	}	538	}
407		539
408	static void	540	void inline_speed
409	fd_kill (EV_P_ int fd)	541	fd_kill (EV_P_ int fd)
410	{	542	{
411	struct ev_io *w;	543	ev_io *w;
412		544
413	while ((w = (struct ev_io *)anfds [fd].head))	545	while ((w = (ev_io *)anfds [fd].head))
414	{	546	{
415	ev_io_stop (EV_A_ w);	547	ev_io_stop (EV_A_ w);
416	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	548	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
417	}	549	}
418	}	550	}
419		551
420	static int	552	int inline_size
421	fd_valid (int fd)	553	fd_valid (int fd)
422	{	554	{
423	#ifdef WIN32	555	#ifdef _WIN32
424	return !!win32_get_osfhandle (fd);	556	return _get_osfhandle (fd) != -1;
425	#else	557	#else
426	return fcntl (fd, F_GETFD) != -1;	558	return fcntl (fd, F_GETFD) != -1;
427	#endif	559	#endif
428	}	560	}
429		561
430	/* called on EBADF to verify fds */	562	/* called on EBADF to verify fds */
431	static void	563	static void noinline
432	fd_ebadf (EV_P)	564	fd_ebadf (EV_P)
433	{	565	{
434	int fd;	566	int fd;
435		567
436	for (fd = 0; fd < anfdmax; ++fd)	568	for (fd = 0; fd < anfdmax; ++fd)
…		…
438	if (!fd_valid (fd) == -1 && errno == EBADF)	570	if (!fd_valid (fd) == -1 && errno == EBADF)
439	fd_kill (EV_A_ fd);	571	fd_kill (EV_A_ fd);
440	}	572	}
441		573
442	/* called on ENOMEM in select/poll to kill some fds and retry */	574	/* called on ENOMEM in select/poll to kill some fds and retry */
443	static void	575	static void noinline
444	fd_enomem (EV_P)	576	fd_enomem (EV_P)
445	{	577	{
446	int fd;	578	int fd;
447		579
448	for (fd = anfdmax; fd--; )	580	for (fd = anfdmax; fd--; )
…		…
451	fd_kill (EV_A_ fd);	583	fd_kill (EV_A_ fd);
452	return;	584	return;
453	}	585	}
454	}	586	}
455		587
456	/* usually called after fork if method needs to re-arm all fds from scratch */	588	/* usually called after fork if backend needs to re-arm all fds from scratch */
457	static void	589	static void noinline
458	fd_rearm_all (EV_P)	590	fd_rearm_all (EV_P)
459	{	591	{
460	int fd;	592	int fd;
461		593
462	/* this should be highly optimised to not do anything but set a flag */
463	for (fd = 0; fd < anfdmax; ++fd)	594	for (fd = 0; fd < anfdmax; ++fd)
464	if (anfds [fd].events)	595	if (anfds [fd].events)
465	{	596	{
466	anfds [fd].events = 0;	597	anfds [fd].events = 0;
467	fd_change (EV_A_ fd);	598	fd_change (EV_A_ fd);
468	}	599	}
469	}	600	}
470		601
471	/*****************************************************************************/	602	/*****************************************************************************/
472		603
473	static void	604	void inline_speed
474	upheap (WT *heap, int k)	605	upheap (WT *heap, int k)
475	{	606	{
476	WT w = heap [k];	607	WT w = heap [k];
477		608
478	while (k && heap [k >> 1]->at > w->at)	609	while (k && heap [k >> 1]->at > w->at)
…		…
485	heap [k] = w;	616	heap [k] = w;
486	((W)heap [k])->active = k + 1;	617	((W)heap [k])->active = k + 1;
487		618
488	}	619	}
489		620
490	static void	621	void inline_speed
491	downheap (WT *heap, int N, int k)	622	downheap (WT *heap, int N, int k)
492	{	623	{
493	WT w = heap [k];	624	WT w = heap [k];
494		625
495	while (k < (N >> 1))	626	while (k < (N >> 1))
…		…
509		640
510	heap [k] = w;	641	heap [k] = w;
511	((W)heap [k])->active = k + 1;	642	((W)heap [k])->active = k + 1;
512	}	643	}
513		644
		645	void inline_size
		646	adjustheap (WT *heap, int N, int k)
		647	{
		648	upheap (heap, k);
		649	downheap (heap, N, k);
		650	}
		651
514	/*****************************************************************************/	652	/*****************************************************************************/
515		653
516	typedef struct	654	typedef struct
517	{	655	{
518	WL head;	656	WL head;
…		…
522	static ANSIG *signals;	660	static ANSIG *signals;
523	static int signalmax;	661	static int signalmax;
524		662
525	static int sigpipe [2];	663	static int sigpipe [2];
526	static sig_atomic_t volatile gotsig;	664	static sig_atomic_t volatile gotsig;
527	static struct ev_io sigev;	665	static ev_io sigev;
528		666
529	static void	667	void inline_size
530	signals_init (ANSIG *base, int count)	668	signals_init (ANSIG *base, int count)
531	{	669	{
532	while (count--)	670	while (count--)
533	{	671	{
534	base->head = 0;	672	base->head = 0;
…		…
539	}	677	}
540		678
541	static void	679	static void
542	sighandler (int signum)	680	sighandler (int signum)
543	{	681	{
544	#if WIN32	682	#if _WIN32
545	signal (signum, sighandler);	683	signal (signum, sighandler);
546	#endif	684	#endif
547		685
548	signals [signum - 1].gotsig = 1;	686	signals [signum - 1].gotsig = 1;
549		687
550	if (!gotsig)	688	if (!gotsig)
551	{	689	{
552	int old_errno = errno;	690	int old_errno = errno;
553	gotsig = 1;	691	gotsig = 1;
554	#ifdef WIN32
555	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
556	#else
557	write (sigpipe [1], &signum, 1);	692	write (sigpipe [1], &signum, 1);
558	#endif
559	errno = old_errno;	693	errno = old_errno;
560	}	694	}
561	}	695	}
562		696
563	void	697	void noinline
564	ev_feed_signal_event (EV_P_ int signum)	698	ev_feed_signal_event (EV_P_ int signum)
565	{	699	{
		700	WL w;
		701
566	#if EV_MULTIPLICITY	702	#if EV_MULTIPLICITY
567	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	703	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
568	#endif	704	#endif
569		705
570	--signum;	706	--signum;
571		707
572	if (signum < 0 \|\| signum >= signalmax)	708	if (signum < 0 \|\| signum >= signalmax)
…		…
577	for (w = signals [signum].head; w; w = w->next)	713	for (w = signals [signum].head; w; w = w->next)
578	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	714	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
579	}	715	}
580		716
581	static void	717	static void
582	sigcb (EV_P_ struct ev_io *iow, int revents)	718	sigcb (EV_P_ ev_io *iow, int revents)
583	{	719	{
584	WL w;
585	int signum;	720	int signum;
586		721
587	#ifdef WIN32
588	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
589	#else
590	read (sigpipe [0], &revents, 1);	722	read (sigpipe [0], &revents, 1);
591	#endif
592	gotsig = 0;	723	gotsig = 0;
593		724
594	for (signum = signalmax; signum--; )	725	for (signum = signalmax; signum--; )
595	if (signals [signum].gotsig)	726	if (signals [signum].gotsig)
596	sigevent (EV_A_ signum + 1);	727	ev_feed_signal_event (EV_A_ signum + 1);
597	}	728	}
598		729
599	static void	730	void inline_size
		731	fd_intern (int fd)
		732	{
		733	#ifdef _WIN32
		734	int arg = 1;
		735	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		736	#else
		737	fcntl (fd, F_SETFD, FD_CLOEXEC);
		738	fcntl (fd, F_SETFL, O_NONBLOCK);
		739	#endif
		740	}
		741
		742	static void noinline
600	siginit (EV_P)	743	siginit (EV_P)
601	{	744	{
602	#ifndef WIN32	745	fd_intern (sigpipe [0]);
603	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	746	fd_intern (sigpipe [1]);
604	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
605
606	/* rather than sort out wether we really need nb, set it */
607	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
608	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
609	#endif
610		747
611	ev_io_set (&sigev, sigpipe [0], EV_READ);	748	ev_io_set (&sigev, sigpipe [0], EV_READ);
612	ev_io_start (EV_A_ &sigev);	749	ev_io_start (EV_A_ &sigev);
613	ev_unref (EV_A); /* child watcher should not keep loop alive */	750	ev_unref (EV_A); /* child watcher should not keep loop alive */
614	}	751	}
615		752
616	/*****************************************************************************/	753	/*****************************************************************************/
617		754
618	static struct ev_child *childs [PID_HASHSIZE];	755	static ev_child *childs [EV_PID_HASHSIZE];
619		756
620	#ifndef WIN32	757	#ifndef _WIN32
621		758
622	static struct ev_signal childev;	759	static ev_signal childev;
623		760
624	#ifndef WCONTINUED	761	void inline_speed
625	# define WCONTINUED 0
626	#endif
627
628	static void
629	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	762	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
630	{	763	{
631	struct ev_child *w;	764	ev_child *w;
632		765
633	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	766	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
634	if (w->pid == pid \|\| !w->pid)	767	if (w->pid == pid \|\| !w->pid)
635	{	768	{
636	ev_priority (w) = ev_priority (sw); /* need to do it now */	769	ev_priority (w) = ev_priority (sw); /* need to do it now */
637	w->rpid = pid;	770	w->rpid = pid;
638	w->rstatus = status;	771	w->rstatus = status;
639	ev_feed_event (EV_A_ (W)w, EV_CHILD);	772	ev_feed_event (EV_A_ (W)w, EV_CHILD);
640	}	773	}
641	}	774	}
642		775
		776	#ifndef WCONTINUED
		777	# define WCONTINUED 0
		778	#endif
		779
643	static void	780	static void
644	childcb (EV_P_ struct ev_signal *sw, int revents)	781	childcb (EV_P_ ev_signal *sw, int revents)
645	{	782	{
646	int pid, status;	783	int pid, status;
647		784
		785	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
648	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	786	if (0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
649	{	787	if (!WCONTINUED
		788	\|\| errno != EINVAL
		789	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
		790	return;
		791
650	/* make sure we are called again until all childs have been reaped */	792	/* make sure we are called again until all childs have been reaped */
		793	/* we need to do it this way so that the callback gets called before we continue */
651	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	794	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
652		795
653	child_reap (EV_A_ sw, pid, pid, status);	796	child_reap (EV_A_ sw, pid, pid, status);
		797	if (EV_PID_HASHSIZE > 1)
654	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	798	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
655	}
656	}	799	}
657		800
658	#endif	801	#endif
659		802
660	/*****************************************************************************/	803	/*****************************************************************************/
661		804
		805	#if EV_USE_PORT
		806	# include "ev_port.c"
		807	#endif
662	#if EV_USE_KQUEUE	808	#if EV_USE_KQUEUE
663	# include "ev_kqueue.c"	809	# include "ev_kqueue.c"
664	#endif	810	#endif
665	#if EV_USE_EPOLL	811	#if EV_USE_EPOLL
666	# include "ev_epoll.c"	812	# include "ev_epoll.c"
…		…
683	{	829	{
684	return EV_VERSION_MINOR;	830	return EV_VERSION_MINOR;
685	}	831	}
686		832
687	/* return true if we are running with elevated privileges and should ignore env variables */	833	/* return true if we are running with elevated privileges and should ignore env variables */
688	static int	834	int inline_size
689	enable_secure (void)	835	enable_secure (void)
690	{	836	{
691	#ifdef WIN32	837	#ifdef _WIN32
692	return 0;	838	return 0;
693	#else	839	#else
694	return getuid () != geteuid ()	840	return getuid () != geteuid ()
695	\|\| getgid () != getegid ();	841	\|\| getgid () != getegid ();
696	#endif	842	#endif
697	}	843	}
698		844
699	int	845	unsigned int
700	ev_method (EV_P)	846	ev_supported_backends (void)
701	{	847	{
702	return method;	848	unsigned int flags = 0;
703	}
704		849
705	static void	850	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
706	loop_init (EV_P_ int methods)	851	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		852	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		853	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		854	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		855
		856	return flags;
		857	}
		858
		859	unsigned int
		860	ev_recommended_backends (void)
707	{	861	{
708	if (!method)	862	unsigned int flags = ev_supported_backends ();
		863
		864	#ifndef __NetBSD__
		865	/* kqueue is borked on everything but netbsd apparently */
		866	/* it usually doesn't work correctly on anything but sockets and pipes */
		867	flags &= ~EVBACKEND_KQUEUE;
		868	#endif
		869	#ifdef __APPLE__
		870	// flags &= ~EVBACKEND_KQUEUE; for documentation
		871	flags &= ~EVBACKEND_POLL;
		872	#endif
		873
		874	return flags;
		875	}
		876
		877	unsigned int
		878	ev_embeddable_backends (void)
		879	{
		880	return EVBACKEND_EPOLL
		881	\| EVBACKEND_KQUEUE
		882	\| EVBACKEND_PORT;
		883	}
		884
		885	unsigned int
		886	ev_backend (EV_P)
		887	{
		888	return backend;
		889	}
		890
		891	static void noinline
		892	loop_init (EV_P_ unsigned int flags)
		893	{
		894	if (!backend)
709	{	895	{
710	#if EV_USE_MONOTONIC	896	#if EV_USE_MONOTONIC
711	{	897	{
712	struct timespec ts;	898	struct timespec ts;
713	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	899	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
714	have_monotonic = 1;	900	have_monotonic = 1;
715	}	901	}
716	#endif	902	#endif
717		903
718	rt_now = ev_time ();	904	ev_rt_now = ev_time ();
719	mn_now = get_clock ();	905	mn_now = get_clock ();
720	now_floor = mn_now;	906	now_floor = mn_now;
721	rtmn_diff = rt_now - mn_now;	907	rtmn_diff = ev_rt_now - mn_now;
722		908
723	if (methods == EVMETHOD_AUTO)	909	if (!(flags & EVFLAG_NOENV)
724	if (!enable_secure () && getenv ("LIBEV_METHODS"))	910	&& !enable_secure ()
		911	&& getenv ("LIBEV_FLAGS"))
725	methods = atoi (getenv ("LIBEV_METHODS"));	912	flags = atoi (getenv ("LIBEV_FLAGS"));
726	else
727	methods = EVMETHOD_ANY;
728		913
729	method = 0;	914	if (!(flags & 0x0000ffffUL))
		915	flags \|= ev_recommended_backends ();
		916
		917	backend = 0;
		918	backend_fd = -1;
730	#if EV_USE_WIN32	919	#if EV_USE_INOTIFY
731	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	920	fs_fd = -2;
		921	#endif
		922
		923	#if EV_USE_PORT
		924	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
732	#endif	925	#endif
733	#if EV_USE_KQUEUE	926	#if EV_USE_KQUEUE
734	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	927	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
735	#endif	928	#endif
736	#if EV_USE_EPOLL	929	#if EV_USE_EPOLL
737	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	930	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
738	#endif	931	#endif
739	#if EV_USE_POLL	932	#if EV_USE_POLL
740	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	933	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
741	#endif	934	#endif
742	#if EV_USE_SELECT	935	#if EV_USE_SELECT
743	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	936	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
744	#endif	937	#endif
745		938
746	ev_watcher_init (&sigev, sigcb);	939	ev_init (&sigev, sigcb);
747	ev_set_priority (&sigev, EV_MAXPRI);	940	ev_set_priority (&sigev, EV_MAXPRI);
748	}	941	}
749	}	942	}
750		943
751	void	944	static void noinline
752	loop_destroy (EV_P)	945	loop_destroy (EV_P)
753	{	946	{
754	int i;	947	int i;
755		948
756	#if EV_USE_WIN32	949	#if EV_USE_INOTIFY
757	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	950	if (fs_fd >= 0)
		951	close (fs_fd);
		952	#endif
		953
		954	if (backend_fd >= 0)
		955	close (backend_fd);
		956
		957	#if EV_USE_PORT
		958	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
758	#endif	959	#endif
759	#if EV_USE_KQUEUE	960	#if EV_USE_KQUEUE
760	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	961	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
761	#endif	962	#endif
762	#if EV_USE_EPOLL	963	#if EV_USE_EPOLL
763	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	964	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
764	#endif	965	#endif
765	#if EV_USE_POLL	966	#if EV_USE_POLL
766	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	967	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
767	#endif	968	#endif
768	#if EV_USE_SELECT	969	#if EV_USE_SELECT
769	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	970	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
770	#endif	971	#endif
771		972
772	for (i = NUMPRI; i--; )	973	for (i = NUMPRI; i--; )
773	array_free (pending, [i]);	974	array_free (pending, [i]);
774		975
775	/* have to use the microsoft-never-gets-it-right macro */	976	/* have to use the microsoft-never-gets-it-right macro */
776	array_free_microshit (fdchange);	977	array_free (fdchange, EMPTY0);
777	array_free_microshit (timer);	978	array_free (timer, EMPTY0);
778	array_free_microshit (periodic);	979	#if EV_PERIODIC_ENABLE
779	array_free_microshit (idle);	980	array_free (periodic, EMPTY0);
780	array_free_microshit (prepare);	981	#endif
781	array_free_microshit (check);	982	array_free (idle, EMPTY0);
		983	array_free (prepare, EMPTY0);
		984	array_free (check, EMPTY0);
782		985
783	method = 0;	986	backend = 0;
784	}	987	}
785		988
786	static void	989	void inline_size infy_fork (EV_P);
		990
		991	void inline_size
787	loop_fork (EV_P)	992	loop_fork (EV_P)
788	{	993	{
		994	#if EV_USE_PORT
		995	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		996	#endif
		997	#if EV_USE_KQUEUE
		998	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		999	#endif
789	#if EV_USE_EPOLL	1000	#if EV_USE_EPOLL
790	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1001	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
791	#endif	1002	#endif
792	#if EV_USE_KQUEUE	1003	#if EV_USE_INOTIFY
793	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1004	infy_fork (EV_A);
794	#endif	1005	#endif
795		1006
796	if (ev_is_active (&sigev))	1007	if (ev_is_active (&sigev))
797	{	1008	{
798	/* default loop */	1009	/* default loop */
…		…
811	postfork = 0;	1022	postfork = 0;
812	}	1023	}
813		1024
814	#if EV_MULTIPLICITY	1025	#if EV_MULTIPLICITY
815	struct ev_loop *	1026	struct ev_loop *
816	ev_loop_new (int methods)	1027	ev_loop_new (unsigned int flags)
817	{	1028	{
818	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1029	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
819		1030
820	memset (loop, 0, sizeof (struct ev_loop));	1031	memset (loop, 0, sizeof (struct ev_loop));
821		1032
822	loop_init (EV_A_ methods);	1033	loop_init (EV_A_ flags);
823		1034
824	if (ev_method (EV_A))	1035	if (ev_backend (EV_A))
825	return loop;	1036	return loop;
826		1037
827	return 0;	1038	return 0;
828	}	1039	}
829		1040
…		…
841	}	1052	}
842		1053
843	#endif	1054	#endif
844		1055
845	#if EV_MULTIPLICITY	1056	#if EV_MULTIPLICITY
846	struct ev_loop default_loop_struct;
847	static struct ev_loop *default_loop;
848
849	struct ev_loop *	1057	struct ev_loop *
		1058	ev_default_loop_init (unsigned int flags)
850	#else	1059	#else
851	static int default_loop;
852
853	int	1060	int
		1061	ev_default_loop (unsigned int flags)
854	#endif	1062	#endif
855	ev_default_loop (int methods)
856	{	1063	{
857	if (sigpipe [0] == sigpipe [1])	1064	if (sigpipe [0] == sigpipe [1])
858	if (pipe (sigpipe))	1065	if (pipe (sigpipe))
859	return 0;	1066	return 0;
860		1067
861	if (!default_loop)	1068	if (!ev_default_loop_ptr)
862	{	1069	{
863	#if EV_MULTIPLICITY	1070	#if EV_MULTIPLICITY
864	struct ev_loop *loop = default_loop = &default_loop_struct;	1071	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
865	#else	1072	#else
866	default_loop = 1;	1073	ev_default_loop_ptr = 1;
867	#endif	1074	#endif
868		1075
869	loop_init (EV_A_ methods);	1076	loop_init (EV_A_ flags);
870		1077
871	if (ev_method (EV_A))	1078	if (ev_backend (EV_A))
872	{	1079	{
873	siginit (EV_A);	1080	siginit (EV_A);
874		1081
875	#ifndef WIN32	1082	#ifndef _WIN32
876	ev_signal_init (&childev, childcb, SIGCHLD);	1083	ev_signal_init (&childev, childcb, SIGCHLD);
877	ev_set_priority (&childev, EV_MAXPRI);	1084	ev_set_priority (&childev, EV_MAXPRI);
878	ev_signal_start (EV_A_ &childev);	1085	ev_signal_start (EV_A_ &childev);
879	ev_unref (EV_A); /* child watcher should not keep loop alive */	1086	ev_unref (EV_A); /* child watcher should not keep loop alive */
880	#endif	1087	#endif
881	}	1088	}
882	else	1089	else
883	default_loop = 0;	1090	ev_default_loop_ptr = 0;
884	}	1091	}
885		1092
886	return default_loop;	1093	return ev_default_loop_ptr;
887	}	1094	}
888		1095
889	void	1096	void
890	ev_default_destroy (void)	1097	ev_default_destroy (void)
891	{	1098	{
892	#if EV_MULTIPLICITY	1099	#if EV_MULTIPLICITY
893	struct ev_loop *loop = default_loop;	1100	struct ev_loop *loop = ev_default_loop_ptr;
894	#endif	1101	#endif
895		1102
896	#ifndef WIN32	1103	#ifndef _WIN32
897	ev_ref (EV_A); /* child watcher */	1104	ev_ref (EV_A); /* child watcher */
898	ev_signal_stop (EV_A_ &childev);	1105	ev_signal_stop (EV_A_ &childev);
899	#endif	1106	#endif
900		1107
901	ev_ref (EV_A); /* signal watcher */	1108	ev_ref (EV_A); /* signal watcher */
…		…
909		1116
910	void	1117	void
911	ev_default_fork (void)	1118	ev_default_fork (void)
912	{	1119	{
913	#if EV_MULTIPLICITY	1120	#if EV_MULTIPLICITY
914	struct ev_loop *loop = default_loop;	1121	struct ev_loop *loop = ev_default_loop_ptr;
915	#endif	1122	#endif
916		1123
917	if (method)	1124	if (backend)
918	postfork = 1;	1125	postfork = 1;
919	}	1126	}
920		1127
921	/*****************************************************************************/	1128	/*****************************************************************************/
922		1129
923	static int	1130	int inline_size
924	any_pending (EV_P)	1131	any_pending (EV_P)
925	{	1132	{
926	int pri;	1133	int pri;
927		1134
928	for (pri = NUMPRI; pri--; )	1135	for (pri = NUMPRI; pri--; )
…		…
930	return 1;	1137	return 1;
931		1138
932	return 0;	1139	return 0;
933	}	1140	}
934		1141
935	static void	1142	void inline_speed
936	call_pending (EV_P)	1143	call_pending (EV_P)
937	{	1144	{
938	int pri;	1145	int pri;
939		1146
940	for (pri = NUMPRI; pri--; )	1147	for (pri = NUMPRI; pri--; )
941	while (pendingcnt [pri])	1148	while (pendingcnt [pri])
942	{	1149	{
943	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1150	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
944		1151
945	if (p->w)	1152	if (expect_true (p->w))
946	{	1153	{
		1154	/assert (("non-pending watcher on pending list", p->w->pending));/
		1155
947	p->w->pending = 0;	1156	p->w->pending = 0;
948	p->w->cb (EV_A_ p->w, p->events);	1157	EV_CB_INVOKE (p->w, p->events);
949	}	1158	}
950	}	1159	}
951	}	1160	}
952		1161
953	static void	1162	void inline_size
954	timers_reify (EV_P)	1163	timers_reify (EV_P)
955	{	1164	{
956	while (timercnt && ((WT)timers [0])->at <= mn_now)	1165	while (timercnt && ((WT)timers [0])->at <= mn_now)
957	{	1166	{
958	struct ev_timer *w = timers [0];	1167	ev_timer *w = timers [0];
959		1168
960	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1169	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
961		1170
962	/* first reschedule or stop timer */	1171	/* first reschedule or stop timer */
963	if (w->repeat)	1172	if (w->repeat)
964	{	1173	{
965	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1174	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1175
966	((WT)w)->at = mn_now + w->repeat;	1176	((WT)w)->at += w->repeat;
		1177	if (((WT)w)->at < mn_now)
		1178	((WT)w)->at = mn_now;
		1179
967	downheap ((WT *)timers, timercnt, 0);	1180	downheap ((WT *)timers, timercnt, 0);
968	}	1181	}
969	else	1182	else
970	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1183	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
971		1184
972	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1185	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
973	}	1186	}
974	}	1187	}
975		1188
976	static void	1189	#if EV_PERIODIC_ENABLE
		1190	void inline_size
977	periodics_reify (EV_P)	1191	periodics_reify (EV_P)
978	{	1192	{
979	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1193	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
980	{	1194	{
981	struct ev_periodic *w = periodics [0];	1195	ev_periodic *w = periodics [0];
982		1196
983	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1197	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
984		1198
985	/* first reschedule or stop timer */	1199	/* first reschedule or stop timer */
986	if (w->reschedule_cb)	1200	if (w->reschedule_cb)
987	{	1201	{
988	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1202	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
989
990	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1203	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
991	downheap ((WT *)periodics, periodiccnt, 0);	1204	downheap ((WT *)periodics, periodiccnt, 0);
992	}	1205	}
993	else if (w->interval)	1206	else if (w->interval)
994	{	1207	{
995	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1208	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
996	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1209	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
997	downheap ((WT *)periodics, periodiccnt, 0);	1210	downheap ((WT *)periodics, periodiccnt, 0);
998	}	1211	}
999	else	1212	else
1000	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1213	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1001		1214
1002	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1215	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1003	}	1216	}
1004	}	1217	}
1005		1218
1006	static void	1219	static void noinline
1007	periodics_reschedule (EV_P)	1220	periodics_reschedule (EV_P)
1008	{	1221	{
1009	int i;	1222	int i;
1010		1223
1011	/* adjust periodics after time jump */	1224	/* adjust periodics after time jump */
1012	for (i = 0; i < periodiccnt; ++i)	1225	for (i = 0; i < periodiccnt; ++i)
1013	{	1226	{
1014	struct ev_periodic *w = periodics [i];	1227	ev_periodic *w = periodics [i];
1015		1228
1016	if (w->reschedule_cb)	1229	if (w->reschedule_cb)
1017	((WT)w)->at = w->reschedule_cb (w, rt_now);	1230	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1018	else if (w->interval)	1231	else if (w->interval)
1019	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1232	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1020	}	1233	}
1021		1234
1022	/* now rebuild the heap */	1235	/* now rebuild the heap */
1023	for (i = periodiccnt >> 1; i--; )	1236	for (i = periodiccnt >> 1; i--; )
1024	downheap ((WT *)periodics, periodiccnt, i);	1237	downheap ((WT *)periodics, periodiccnt, i);
1025	}	1238	}
		1239	#endif
1026		1240
1027	inline int	1241	int inline_size
1028	time_update_monotonic (EV_P)	1242	time_update_monotonic (EV_P)
1029	{	1243	{
1030	mn_now = get_clock ();	1244	mn_now = get_clock ();
1031		1245
1032	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1246	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1033	{	1247	{
1034	rt_now = rtmn_diff + mn_now;	1248	ev_rt_now = rtmn_diff + mn_now;
1035	return 0;	1249	return 0;
1036	}	1250	}
1037	else	1251	else
1038	{	1252	{
1039	now_floor = mn_now;	1253	now_floor = mn_now;
1040	rt_now = ev_time ();	1254	ev_rt_now = ev_time ();
1041	return 1;	1255	return 1;
1042	}	1256	}
1043	}	1257	}
1044		1258
1045	static void	1259	void inline_size
1046	time_update (EV_P)	1260	time_update (EV_P)
1047	{	1261	{
1048	int i;	1262	int i;
1049		1263
1050	#if EV_USE_MONOTONIC	1264	#if EV_USE_MONOTONIC
…		…
1052	{	1266	{
1053	if (time_update_monotonic (EV_A))	1267	if (time_update_monotonic (EV_A))
1054	{	1268	{
1055	ev_tstamp odiff = rtmn_diff;	1269	ev_tstamp odiff = rtmn_diff;
1056		1270
1057	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1271	/* loop a few times, before making important decisions.
		1272	* on the choice of "4": one iteration isn't enough,
		1273	* in case we get preempted during the calls to
		1274	* ev_time and get_clock. a second call is almost guaranteed
		1275	* to succeed in that case, though. and looping a few more times
		1276	* doesn't hurt either as we only do this on time-jumps or
		1277	* in the unlikely event of having been preempted here.
		1278	*/
		1279	for (i = 4; --i; )
1058	{	1280	{
1059	rtmn_diff = rt_now - mn_now;	1281	rtmn_diff = ev_rt_now - mn_now;
1060		1282
1061	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1283	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1062	return; /* all is well */	1284	return; /* all is well */
1063		1285
1064	rt_now = ev_time ();	1286	ev_rt_now = ev_time ();
1065	mn_now = get_clock ();	1287	mn_now = get_clock ();
1066	now_floor = mn_now;	1288	now_floor = mn_now;
1067	}	1289	}
1068		1290
		1291	# if EV_PERIODIC_ENABLE
1069	periodics_reschedule (EV_A);	1292	periodics_reschedule (EV_A);
		1293	# endif
1070	/* no timer adjustment, as the monotonic clock doesn't jump */	1294	/* no timer adjustment, as the monotonic clock doesn't jump */
1071	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1295	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1072	}	1296	}
1073	}	1297	}
1074	else	1298	else
1075	#endif	1299	#endif
1076	{	1300	{
1077	rt_now = ev_time ();	1301	ev_rt_now = ev_time ();
1078		1302
1079	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1303	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1080	{	1304	{
		1305	#if EV_PERIODIC_ENABLE
1081	periodics_reschedule (EV_A);	1306	periodics_reschedule (EV_A);
		1307	#endif
1082		1308
1083	/* adjust timers. this is easy, as the offset is the same for all */	1309	/* adjust timers. this is easy, as the offset is the same for all of them */
1084	for (i = 0; i < timercnt; ++i)	1310	for (i = 0; i < timercnt; ++i)
1085	((WT)timers [i])->at += rt_now - mn_now;	1311	((WT)timers [i])->at += ev_rt_now - mn_now;
1086	}	1312	}
1087		1313
1088	mn_now = rt_now;	1314	mn_now = ev_rt_now;
1089	}	1315	}
1090	}	1316	}
1091		1317
1092	void	1318	void
1093	ev_ref (EV_P)	1319	ev_ref (EV_P)
…		…
1104	static int loop_done;	1330	static int loop_done;
1105		1331
1106	void	1332	void
1107	ev_loop (EV_P_ int flags)	1333	ev_loop (EV_P_ int flags)
1108	{	1334	{
1109	double block;
1110	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1335	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1336	? EVUNLOOP_ONE
		1337	: EVUNLOOP_CANCEL;
1111		1338
1112	do	1339	while (activecnt)
1113	{	1340	{
		1341	#if EV_FORK_ENABLE
		1342	/* we might have forked, so queue fork handlers */
		1343	if (expect_false (postfork))
		1344	if (forkcnt)
		1345	{
		1346	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1347	call_pending (EV_A);
		1348	}
		1349	#endif
		1350
1114	/* queue check watchers (and execute them) */	1351	/* queue check watchers (and execute them) */
1115	if (expect_false (preparecnt))	1352	if (expect_false (preparecnt))
1116	{	1353	{
1117	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1354	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1118	call_pending (EV_A);	1355	call_pending (EV_A);
…		…
1124		1361
1125	/* update fd-related kernel structures */	1362	/* update fd-related kernel structures */
1126	fd_reify (EV_A);	1363	fd_reify (EV_A);
1127		1364
1128	/* calculate blocking time */	1365	/* calculate blocking time */
		1366	{
		1367	ev_tstamp block;
1129		1368
1130	/* we only need this for !monotonic clock or timers, but as we basically	1369	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1131	always have timers, we just calculate it always */	1370	block = 0.; /* do not block at all */
		1371	else
		1372	{
		1373	/* update time to cancel out callback processing overhead */
1132	#if EV_USE_MONOTONIC	1374	#if EV_USE_MONOTONIC
1133	if (expect_true (have_monotonic))	1375	if (expect_true (have_monotonic))
1134	time_update_monotonic (EV_A);	1376	time_update_monotonic (EV_A);
1135	else	1377	else
1136	#endif	1378	#endif
1137	{	1379	{
1138	rt_now = ev_time ();	1380	ev_rt_now = ev_time ();
1139	mn_now = rt_now;	1381	mn_now = ev_rt_now;
1140	}	1382	}
1141		1383
1142	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1143	block = 0.;
1144	else
1145	{
1146	block = MAX_BLOCKTIME;	1384	block = MAX_BLOCKTIME;
1147		1385
1148	if (timercnt)	1386	if (timercnt)
1149	{	1387	{
1150	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1388	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1151	if (block > to) block = to;	1389	if (block > to) block = to;
1152	}	1390	}
1153		1391
		1392	#if EV_PERIODIC_ENABLE
1154	if (periodiccnt)	1393	if (periodiccnt)
1155	{	1394	{
1156	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1395	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1157	if (block > to) block = to;	1396	if (block > to) block = to;
1158	}	1397	}
		1398	#endif
1159		1399
1160	if (block < 0.) block = 0.;	1400	if (expect_false (block < 0.)) block = 0.;
1161	}	1401	}
1162		1402
1163	method_poll (EV_A_ block);	1403	backend_poll (EV_A_ block);
		1404	}
1164		1405
1165	/* update rt_now, do magic */	1406	/* update ev_rt_now, do magic */
1166	time_update (EV_A);	1407	time_update (EV_A);
1167		1408
1168	/* queue pending timers and reschedule them */	1409	/* queue pending timers and reschedule them */
1169	timers_reify (EV_A); /* relative timers called last */	1410	timers_reify (EV_A); /* relative timers called last */
		1411	#if EV_PERIODIC_ENABLE
1170	periodics_reify (EV_A); /* absolute timers called first */	1412	periodics_reify (EV_A); /* absolute timers called first */
		1413	#endif
1171		1414
1172	/* queue idle watchers unless io or timers are pending */	1415	/* queue idle watchers unless other events are pending */
1173	if (idlecnt && !any_pending (EV_A))	1416	if (idlecnt && !any_pending (EV_A))
1174	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1417	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1175		1418
1176	/* queue check watchers, to be executed first */	1419	/* queue check watchers, to be executed first */
1177	if (checkcnt)	1420	if (expect_false (checkcnt))
1178	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1421	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1179		1422
1180	call_pending (EV_A);	1423	call_pending (EV_A);
1181	}
1182	while (activecnt && !loop_done);
1183		1424
1184	if (loop_done != 2)	1425	if (expect_false (loop_done))
1185	loop_done = 0;	1426	break;
		1427	}
		1428
		1429	if (loop_done == EVUNLOOP_ONE)
		1430	loop_done = EVUNLOOP_CANCEL;
1186	}	1431	}
1187		1432
1188	void	1433	void
1189	ev_unloop (EV_P_ int how)	1434	ev_unloop (EV_P_ int how)
1190	{	1435	{
1191	loop_done = how;	1436	loop_done = how;
1192	}	1437	}
1193		1438
1194	/*****************************************************************************/	1439	/*****************************************************************************/
1195		1440
1196	inline void	1441	void inline_size
1197	wlist_add (WL *head, WL elem)	1442	wlist_add (WL *head, WL elem)
1198	{	1443	{
1199	elem->next = *head;	1444	elem->next = *head;
1200	*head = elem;	1445	*head = elem;
1201	}	1446	}
1202		1447
1203	inline void	1448	void inline_size
1204	wlist_del (WL *head, WL elem)	1449	wlist_del (WL *head, WL elem)
1205	{	1450	{
1206	while (*head)	1451	while (*head)
1207	{	1452	{
1208	if (*head == elem)	1453	if (*head == elem)
…		…
1213		1458
1214	head = &(*head)->next;	1459	head = &(*head)->next;
1215	}	1460	}
1216	}	1461	}
1217		1462
1218	inline void	1463	void inline_speed
1219	ev_clear_pending (EV_P_ W w)	1464	ev_clear_pending (EV_P_ W w)
1220	{	1465	{
1221	if (w->pending)	1466	if (w->pending)
1222	{	1467	{
1223	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1468	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1224	w->pending = 0;	1469	w->pending = 0;
1225	}	1470	}
1226	}	1471	}
1227		1472
1228	inline void	1473	void inline_speed
1229	ev_start (EV_P_ W w, int active)	1474	ev_start (EV_P_ W w, int active)
1230	{	1475	{
1231	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1476	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1232	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1477	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1233		1478
1234	w->active = active;	1479	w->active = active;
1235	ev_ref (EV_A);	1480	ev_ref (EV_A);
1236	}	1481	}
1237		1482
1238	inline void	1483	void inline_size
1239	ev_stop (EV_P_ W w)	1484	ev_stop (EV_P_ W w)
1240	{	1485	{
1241	ev_unref (EV_A);	1486	ev_unref (EV_A);
1242	w->active = 0;	1487	w->active = 0;
1243	}	1488	}
1244		1489
1245	/*****************************************************************************/	1490	/*****************************************************************************/
1246		1491
1247	void	1492	void
1248	ev_io_start (EV_P_ struct ev_io *w)	1493	ev_io_start (EV_P_ ev_io *w)
1249	{	1494	{
1250	int fd = w->fd;	1495	int fd = w->fd;
1251		1496
1252	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1253	return;	1498	return;
1254		1499
1255	assert (("ev_io_start called with negative fd", fd >= 0));	1500	assert (("ev_io_start called with negative fd", fd >= 0));
1256		1501
1257	ev_start (EV_A_ (W)w, 1);	1502	ev_start (EV_A_ (W)w, 1);
…		…
1260		1505
1261	fd_change (EV_A_ fd);	1506	fd_change (EV_A_ fd);
1262	}	1507	}
1263		1508
1264	void	1509	void
1265	ev_io_stop (EV_P_ struct ev_io *w)	1510	ev_io_stop (EV_P_ ev_io *w)
1266	{	1511	{
1267	ev_clear_pending (EV_A_ (W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1268	if (!ev_is_active (w))	1513	if (expect_false (!ev_is_active (w)))
1269	return;	1514	return;
		1515
		1516	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1270		1517
1271	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1518	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1272	ev_stop (EV_A_ (W)w);	1519	ev_stop (EV_A_ (W)w);
1273		1520
1274	fd_change (EV_A_ w->fd);	1521	fd_change (EV_A_ w->fd);
1275	}	1522	}
1276		1523
1277	void	1524	void
1278	ev_timer_start (EV_P_ struct ev_timer *w)	1525	ev_timer_start (EV_P_ ev_timer *w)
1279	{	1526	{
1280	if (ev_is_active (w))	1527	if (expect_false (ev_is_active (w)))
1281	return;	1528	return;
1282		1529
1283	((WT)w)->at += mn_now;	1530	((WT)w)->at += mn_now;
1284		1531
1285	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1532	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1286		1533
1287	ev_start (EV_A_ (W)w, ++timercnt);	1534	ev_start (EV_A_ (W)w, ++timercnt);
1288	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1535	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1289	timers [timercnt - 1] = w;	1536	timers [timercnt - 1] = w;
1290	upheap ((WT *)timers, timercnt - 1);	1537	upheap ((WT *)timers, timercnt - 1);
1291		1538
		1539	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
		1540	}
		1541
		1542	void
		1543	ev_timer_stop (EV_P_ ev_timer *w)
		1544	{
		1545	ev_clear_pending (EV_A_ (W)w);
		1546	if (expect_false (!ev_is_active (w)))
		1547	return;
		1548
1292	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1549	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1293	}
1294		1550
1295	void	1551	{
1296	ev_timer_stop (EV_P_ struct ev_timer *w)	1552	int active = ((W)w)->active;
1297	{
1298	ev_clear_pending (EV_A_ (W)w);
1299	if (!ev_is_active (w))
1300	return;
1301		1553
1302	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1554	if (expect_true (--active < --timercnt))
1303
1304	if (((W)w)->active < timercnt--)
1305	{	1555	{
1306	timers [((W)w)->active - 1] = timers [timercnt];	1556	timers [active] = timers [timercnt];
1307	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1557	adjustheap ((WT *)timers, timercnt, active);
1308	}	1558	}
		1559	}
1309		1560
1310	((WT)w)->at = w->repeat;	1561	((WT)w)->at -= mn_now;
1311		1562
1312	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1313	}	1564	}
1314		1565
1315	void	1566	void
1316	ev_timer_again (EV_P_ struct ev_timer *w)	1567	ev_timer_again (EV_P_ ev_timer *w)
1317	{	1568	{
1318	if (ev_is_active (w))	1569	if (ev_is_active (w))
1319	{	1570	{
1320	if (w->repeat)	1571	if (w->repeat)
1321	{	1572	{
1322	((WT)w)->at = mn_now + w->repeat;	1573	((WT)w)->at = mn_now + w->repeat;
1323	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1574	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1324	}	1575	}
1325	else	1576	else
1326	ev_timer_stop (EV_A_ w);	1577	ev_timer_stop (EV_A_ w);
1327	}	1578	}
1328	else if (w->repeat)	1579	else if (w->repeat)
		1580	{
		1581	w->at = w->repeat;
1329	ev_timer_start (EV_A_ w);	1582	ev_timer_start (EV_A_ w);
		1583	}
1330	}	1584	}
1331		1585
		1586	#if EV_PERIODIC_ENABLE
1332	void	1587	void
1333	ev_periodic_start (EV_P_ struct ev_periodic *w)	1588	ev_periodic_start (EV_P_ ev_periodic *w)
1334	{	1589	{
1335	if (ev_is_active (w))	1590	if (expect_false (ev_is_active (w)))
1336	return;	1591	return;
1337		1592
1338	if (w->reschedule_cb)	1593	if (w->reschedule_cb)
1339	((WT)w)->at = w->reschedule_cb (w, rt_now);	1594	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1340	else if (w->interval)	1595	else if (w->interval)
1341	{	1596	{
1342	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1597	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1343	/* this formula differs from the one in periodic_reify because we do not always round up */	1598	/* this formula differs from the one in periodic_reify because we do not always round up */
1344	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1599	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1345	}	1600	}
1346		1601
1347	ev_start (EV_A_ (W)w, ++periodiccnt);	1602	ev_start (EV_A_ (W)w, ++periodiccnt);
1348	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1603	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1349	periodics [periodiccnt - 1] = w;	1604	periodics [periodiccnt - 1] = w;
1350	upheap ((WT *)periodics, periodiccnt - 1);	1605	upheap ((WT *)periodics, periodiccnt - 1);
1351		1606
		1607	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
		1608	}
		1609
		1610	void
		1611	ev_periodic_stop (EV_P_ ev_periodic *w)
		1612	{
		1613	ev_clear_pending (EV_A_ (W)w);
		1614	if (expect_false (!ev_is_active (w)))
		1615	return;
		1616
1352	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1617	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1353	}
1354		1618
1355	void	1619	{
1356	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1620	int active = ((W)w)->active;
1357	{
1358	ev_clear_pending (EV_A_ (W)w);
1359	if (!ev_is_active (w))
1360	return;
1361		1621
1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1622	if (expect_true (--active < --periodiccnt))
1363
1364	if (((W)w)->active < periodiccnt--)
1365	{	1623	{
1366	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1624	periodics [active] = periodics [periodiccnt];
1367	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1625	adjustheap ((WT *)periodics, periodiccnt, active);
1368	}	1626	}
		1627	}
1369		1628
1370	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1371	}	1630	}
1372		1631
1373	void	1632	void
1374	ev_periodic_again (EV_P_ struct ev_periodic *w)	1633	ev_periodic_again (EV_P_ ev_periodic *w)
1375	{	1634	{
		1635	/* TODO: use adjustheap and recalculation */
1376	ev_periodic_stop (EV_A_ w);	1636	ev_periodic_stop (EV_A_ w);
1377	ev_periodic_start (EV_A_ w);	1637	ev_periodic_start (EV_A_ w);
1378	}	1638	}
1379		1639	#endif
1380	void
1381	ev_idle_start (EV_P_ struct ev_idle *w)
1382	{
1383	if (ev_is_active (w))
1384	return;
1385
1386	ev_start (EV_A_ (W)w, ++idlecnt);
1387	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1388	idles [idlecnt - 1] = w;
1389	}
1390
1391	void
1392	ev_idle_stop (EV_P_ struct ev_idle *w)
1393	{
1394	ev_clear_pending (EV_A_ (W)w);
1395	if (ev_is_active (w))
1396	return;
1397
1398	idles [((W)w)->active - 1] = idles [--idlecnt];
1399	ev_stop (EV_A_ (W)w);
1400	}
1401
1402	void
1403	ev_prepare_start (EV_P_ struct ev_prepare *w)
1404	{
1405	if (ev_is_active (w))
1406	return;
1407
1408	ev_start (EV_A_ (W)w, ++preparecnt);
1409	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1410	prepares [preparecnt - 1] = w;
1411	}
1412
1413	void
1414	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1415	{
1416	ev_clear_pending (EV_A_ (W)w);
1417	if (ev_is_active (w))
1418	return;
1419
1420	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1421	ev_stop (EV_A_ (W)w);
1422	}
1423
1424	void
1425	ev_check_start (EV_P_ struct ev_check *w)
1426	{
1427	if (ev_is_active (w))
1428	return;
1429
1430	ev_start (EV_A_ (W)w, ++checkcnt);
1431	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1432	checks [checkcnt - 1] = w;
1433	}
1434
1435	void
1436	ev_check_stop (EV_P_ struct ev_check *w)
1437	{
1438	ev_clear_pending (EV_A_ (W)w);
1439	if (ev_is_active (w))
1440	return;
1441
1442	checks [((W)w)->active - 1] = checks [--checkcnt];
1443	ev_stop (EV_A_ (W)w);
1444	}
1445		1640
1446	#ifndef SA_RESTART	1641	#ifndef SA_RESTART
1447	# define SA_RESTART 0	1642	# define SA_RESTART 0
1448	#endif	1643	#endif
1449		1644
1450	void	1645	void
1451	ev_signal_start (EV_P_ struct ev_signal *w)	1646	ev_signal_start (EV_P_ ev_signal *w)
1452	{	1647	{
1453	#if EV_MULTIPLICITY	1648	#if EV_MULTIPLICITY
1454	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1649	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1455	#endif	1650	#endif
1456	if (ev_is_active (w))	1651	if (expect_false (ev_is_active (w)))
1457	return;	1652	return;
1458		1653
1459	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1654	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1460		1655
1461	ev_start (EV_A_ (W)w, 1);	1656	ev_start (EV_A_ (W)w, 1);
1462	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1657	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1463	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1658	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1464		1659
1465	if (!((WL)w)->next)	1660	if (!((WL)w)->next)
1466	{	1661	{
1467	#if WIN32	1662	#if _WIN32
1468	signal (w->signum, sighandler);	1663	signal (w->signum, sighandler);
1469	#else	1664	#else
1470	struct sigaction sa;	1665	struct sigaction sa;
1471	sa.sa_handler = sighandler;	1666	sa.sa_handler = sighandler;
1472	sigfillset (&sa.sa_mask);	1667	sigfillset (&sa.sa_mask);
…		…
1475	#endif	1670	#endif
1476	}	1671	}
1477	}	1672	}
1478		1673
1479	void	1674	void
1480	ev_signal_stop (EV_P_ struct ev_signal *w)	1675	ev_signal_stop (EV_P_ ev_signal *w)
1481	{	1676	{
1482	ev_clear_pending (EV_A_ (W)w);	1677	ev_clear_pending (EV_A_ (W)w);
1483	if (!ev_is_active (w))	1678	if (expect_false (!ev_is_active (w)))
1484	return;	1679	return;
1485		1680
1486	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1681	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1487	ev_stop (EV_A_ (W)w);	1682	ev_stop (EV_A_ (W)w);
1488		1683
1489	if (!signals [w->signum - 1].head)	1684	if (!signals [w->signum - 1].head)
1490	signal (w->signum, SIG_DFL);	1685	signal (w->signum, SIG_DFL);
1491	}	1686	}
1492		1687
1493	void	1688	void
1494	ev_child_start (EV_P_ struct ev_child *w)	1689	ev_child_start (EV_P_ ev_child *w)
1495	{	1690	{
1496	#if EV_MULTIPLICITY	1691	#if EV_MULTIPLICITY
1497	assert (("child watchers are only supported in the default loop", loop == default_loop));	1692	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1498	#endif	1693	#endif
1499	if (ev_is_active (w))	1694	if (expect_false (ev_is_active (w)))
1500	return;	1695	return;
1501		1696
1502	ev_start (EV_A_ (W)w, 1);	1697	ev_start (EV_A_ (W)w, 1);
1503	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1698	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1504	}	1699	}
1505		1700
1506	void	1701	void
1507	ev_child_stop (EV_P_ struct ev_child *w)	1702	ev_child_stop (EV_P_ ev_child *w)
1508	{	1703	{
1509	ev_clear_pending (EV_A_ (W)w);	1704	ev_clear_pending (EV_A_ (W)w);
1510	if (ev_is_active (w))	1705	if (expect_false (!ev_is_active (w)))
1511	return;	1706	return;
1512		1707
1513	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1708	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1514	ev_stop (EV_A_ (W)w);	1709	ev_stop (EV_A_ (W)w);
1515	}	1710	}
1516		1711
		1712	#if EV_STAT_ENABLE
		1713
		1714	# ifdef _WIN32
		1715	# undef lstat
		1716	# define lstat(a,b) _stati64 (a,b)
		1717	# endif
		1718
		1719	#define DEF_STAT_INTERVAL 5.0074891
		1720	#define MIN_STAT_INTERVAL 0.1074891
		1721
		1722	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1723
		1724	#if EV_USE_INOTIFY
		1725	# define EV_INOTIFY_BUFSIZE 8192
		1726
		1727	static void noinline
		1728	infy_add (EV_P_ ev_stat *w)
		1729	{
		1730	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
		1731
		1732	if (w->wd < 0)
		1733	{
		1734	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1735
		1736	/* monitor some parent directory for speedup hints */
		1737	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
		1738	{
		1739	char path [4096];
		1740	strcpy (path, w->path);
		1741
		1742	do
		1743	{
		1744	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
		1745	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
		1746
		1747	char *pend = strrchr (path, '/');
		1748
		1749	if (!pend)
		1750	break; /* whoops, no '/', complain to your admin */
		1751
		1752	*pend = 0;
		1753	w->wd = inotify_add_watch (fs_fd, path, mask);
		1754	}
		1755	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
		1756	}
		1757	}
		1758	else
		1759	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1760
		1761	if (w->wd >= 0)
		1762	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1763	}
		1764
		1765	static void noinline
		1766	infy_del (EV_P_ ev_stat *w)
		1767	{
		1768	int slot;
		1769	int wd = w->wd;
		1770
		1771	if (wd < 0)
		1772	return;
		1773
		1774	w->wd = -2;
		1775	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1776	wlist_del (&fs_hash [slot].head, (WL)w);
		1777
		1778	/* remove this watcher, if others are watching it, they will rearm */
		1779	inotify_rm_watch (fs_fd, wd);
		1780	}
		1781
		1782	static void noinline
		1783	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1784	{
		1785	if (slot < 0)
		1786	/* overflow, need to check for all hahs slots */
		1787	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1788	infy_wd (EV_A_ slot, wd, ev);
		1789	else
		1790	{
		1791	WL w_;
		1792
		1793	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1794	{
		1795	ev_stat w = (ev_stat )w_;
		1796	w_ = w_->next; /* lets us remove this watcher and all before it */
		1797
		1798	if (w->wd == wd \|\| wd == -1)
		1799	{
		1800	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
		1801	{
		1802	w->wd = -1;
		1803	infy_add (EV_A_ w); /* re-add, no matter what */
		1804	}
		1805
		1806	stat_timer_cb (EV_A_ &w->timer, 0);
		1807	}
		1808	}
		1809	}
		1810	}
		1811
		1812	static void
		1813	infy_cb (EV_P_ ev_io *w, int revents)
		1814	{
		1815	char buf [EV_INOTIFY_BUFSIZE];
		1816	struct inotify_event ev = (struct inotify_event )buf;
		1817	int ofs;
		1818	int len = read (fs_fd, buf, sizeof (buf));
		1819
		1820	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1821	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1822	}
		1823
		1824	void inline_size
		1825	infy_init (EV_P)
		1826	{
		1827	if (fs_fd != -2)
		1828	return;
		1829
		1830	fs_fd = inotify_init ();
		1831
		1832	if (fs_fd >= 0)
		1833	{
		1834	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1835	ev_set_priority (&fs_w, EV_MAXPRI);
		1836	ev_io_start (EV_A_ &fs_w);
		1837	}
		1838	}
		1839
		1840	void inline_size
		1841	infy_fork (EV_P)
		1842	{
		1843	int slot;
		1844
		1845	if (fs_fd < 0)
		1846	return;
		1847
		1848	close (fs_fd);
		1849	fs_fd = inotify_init ();
		1850
		1851	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1852	{
		1853	WL w_ = fs_hash [slot].head;
		1854	fs_hash [slot].head = 0;
		1855
		1856	while (w_)
		1857	{
		1858	ev_stat w = (ev_stat )w_;
		1859	w_ = w_->next; /* lets us add this watcher */
		1860
		1861	w->wd = -1;
		1862
		1863	if (fs_fd >= 0)
		1864	infy_add (EV_A_ w); /* re-add, no matter what */
		1865	else
		1866	ev_timer_start (EV_A_ &w->timer);
		1867	}
		1868
		1869	}
		1870	}
		1871
		1872	#endif
		1873
		1874	void
		1875	ev_stat_stat (EV_P_ ev_stat *w)
		1876	{
		1877	if (lstat (w->path, &w->attr) < 0)
		1878	w->attr.st_nlink = 0;
		1879	else if (!w->attr.st_nlink)
		1880	w->attr.st_nlink = 1;
		1881	}
		1882
		1883	static void noinline
		1884	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1885	{
		1886	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
		1887
		1888	/* we copy this here each the time so that */
		1889	/* prev has the old value when the callback gets invoked */
		1890	w->prev = w->attr;
		1891	ev_stat_stat (EV_A_ w);
		1892
		1893	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1894	if (
		1895	w->prev.st_dev != w->attr.st_dev
		1896	\|\| w->prev.st_ino != w->attr.st_ino
		1897	\|\| w->prev.st_mode != w->attr.st_mode
		1898	\|\| w->prev.st_nlink != w->attr.st_nlink
		1899	\|\| w->prev.st_uid != w->attr.st_uid
		1900	\|\| w->prev.st_gid != w->attr.st_gid
		1901	\|\| w->prev.st_rdev != w->attr.st_rdev
		1902	\|\| w->prev.st_size != w->attr.st_size
		1903	\|\| w->prev.st_atime != w->attr.st_atime
		1904	\|\| w->prev.st_mtime != w->attr.st_mtime
		1905	\|\| w->prev.st_ctime != w->attr.st_ctime
		1906	) {
		1907	#if EV_USE_INOTIFY
		1908	infy_del (EV_A_ w);
		1909	infy_add (EV_A_ w);
		1910	ev_stat_stat (EV_A_ w); /* avoid race... */
		1911	#endif
		1912
		1913	ev_feed_event (EV_A_ w, EV_STAT);
		1914	}
		1915	}
		1916
		1917	void
		1918	ev_stat_start (EV_P_ ev_stat *w)
		1919	{
		1920	if (expect_false (ev_is_active (w)))
		1921	return;
		1922
		1923	/* since we use memcmp, we need to clear any padding data etc. */
		1924	memset (&w->prev, 0, sizeof (ev_statdata));
		1925	memset (&w->attr, 0, sizeof (ev_statdata));
		1926
		1927	ev_stat_stat (EV_A_ w);
		1928
		1929	if (w->interval < MIN_STAT_INTERVAL)
		1930	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		1931
		1932	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		1933	ev_set_priority (&w->timer, ev_priority (w));
		1934
		1935	#if EV_USE_INOTIFY
		1936	infy_init (EV_A);
		1937
		1938	if (fs_fd >= 0)
		1939	infy_add (EV_A_ w);
		1940	else
		1941	#endif
		1942	ev_timer_start (EV_A_ &w->timer);
		1943
		1944	ev_start (EV_A_ (W)w, 1);
		1945	}
		1946
		1947	void
		1948	ev_stat_stop (EV_P_ ev_stat *w)
		1949	{
		1950	ev_clear_pending (EV_A_ (W)w);
		1951	if (expect_false (!ev_is_active (w)))
		1952	return;
		1953
		1954	#if EV_USE_INOTIFY
		1955	infy_del (EV_A_ w);
		1956	#endif
		1957	ev_timer_stop (EV_A_ &w->timer);
		1958
		1959	ev_stop (EV_A_ (W)w);
		1960	}
		1961	#endif
		1962
		1963	void
		1964	ev_idle_start (EV_P_ ev_idle *w)
		1965	{
		1966	if (expect_false (ev_is_active (w)))
		1967	return;
		1968
		1969	ev_start (EV_A_ (W)w, ++idlecnt);
		1970	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1971	idles [idlecnt - 1] = w;
		1972	}
		1973
		1974	void
		1975	ev_idle_stop (EV_P_ ev_idle *w)
		1976	{
		1977	ev_clear_pending (EV_A_ (W)w);
		1978	if (expect_false (!ev_is_active (w)))
		1979	return;
		1980
		1981	{
		1982	int active = ((W)w)->active;
		1983	idles [active - 1] = idles [--idlecnt];
		1984	((W)idles [active - 1])->active = active;
		1985	}
		1986
		1987	ev_stop (EV_A_ (W)w);
		1988	}
		1989
		1990	void
		1991	ev_prepare_start (EV_P_ ev_prepare *w)
		1992	{
		1993	if (expect_false (ev_is_active (w)))
		1994	return;
		1995
		1996	ev_start (EV_A_ (W)w, ++preparecnt);
		1997	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1998	prepares [preparecnt - 1] = w;
		1999	}
		2000
		2001	void
		2002	ev_prepare_stop (EV_P_ ev_prepare *w)
		2003	{
		2004	ev_clear_pending (EV_A_ (W)w);
		2005	if (expect_false (!ev_is_active (w)))
		2006	return;
		2007
		2008	{
		2009	int active = ((W)w)->active;
		2010	prepares [active - 1] = prepares [--preparecnt];
		2011	((W)prepares [active - 1])->active = active;
		2012	}
		2013
		2014	ev_stop (EV_A_ (W)w);
		2015	}
		2016
		2017	void
		2018	ev_check_start (EV_P_ ev_check *w)
		2019	{
		2020	if (expect_false (ev_is_active (w)))
		2021	return;
		2022
		2023	ev_start (EV_A_ (W)w, ++checkcnt);
		2024	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2025	checks [checkcnt - 1] = w;
		2026	}
		2027
		2028	void
		2029	ev_check_stop (EV_P_ ev_check *w)
		2030	{
		2031	ev_clear_pending (EV_A_ (W)w);
		2032	if (expect_false (!ev_is_active (w)))
		2033	return;
		2034
		2035	{
		2036	int active = ((W)w)->active;
		2037	checks [active - 1] = checks [--checkcnt];
		2038	((W)checks [active - 1])->active = active;
		2039	}
		2040
		2041	ev_stop (EV_A_ (W)w);
		2042	}
		2043
		2044	#if EV_EMBED_ENABLE
		2045	void noinline
		2046	ev_embed_sweep (EV_P_ ev_embed *w)
		2047	{
		2048	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2049	}
		2050
		2051	static void
		2052	embed_cb (EV_P_ ev_io *io, int revents)
		2053	{
		2054	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
		2055
		2056	if (ev_cb (w))
		2057	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2058	else
		2059	ev_embed_sweep (loop, w);
		2060	}
		2061
		2062	void
		2063	ev_embed_start (EV_P_ ev_embed *w)
		2064	{
		2065	if (expect_false (ev_is_active (w)))
		2066	return;
		2067
		2068	{
		2069	struct ev_loop *loop = w->loop;
		2070	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2071	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2072	}
		2073
		2074	ev_set_priority (&w->io, ev_priority (w));
		2075	ev_io_start (EV_A_ &w->io);
		2076
		2077	ev_start (EV_A_ (W)w, 1);
		2078	}
		2079
		2080	void
		2081	ev_embed_stop (EV_P_ ev_embed *w)
		2082	{
		2083	ev_clear_pending (EV_A_ (W)w);
		2084	if (expect_false (!ev_is_active (w)))
		2085	return;
		2086
		2087	ev_io_stop (EV_A_ &w->io);
		2088
		2089	ev_stop (EV_A_ (W)w);
		2090	}
		2091	#endif
		2092
		2093	#if EV_FORK_ENABLE
		2094	void
		2095	ev_fork_start (EV_P_ ev_fork *w)
		2096	{
		2097	if (expect_false (ev_is_active (w)))
		2098	return;
		2099
		2100	ev_start (EV_A_ (W)w, ++forkcnt);
		2101	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2102	forks [forkcnt - 1] = w;
		2103	}
		2104
		2105	void
		2106	ev_fork_stop (EV_P_ ev_fork *w)
		2107	{
		2108	ev_clear_pending (EV_A_ (W)w);
		2109	if (expect_false (!ev_is_active (w)))
		2110	return;
		2111
		2112	{
		2113	int active = ((W)w)->active;
		2114	forks [active - 1] = forks [--forkcnt];
		2115	((W)forks [active - 1])->active = active;
		2116	}
		2117
		2118	ev_stop (EV_A_ (W)w);
		2119	}
		2120	#endif
		2121
1517	/*****************************************************************************/	2122	/*****************************************************************************/
1518		2123
1519	struct ev_once	2124	struct ev_once
1520	{	2125	{
1521	struct ev_io io;	2126	ev_io io;
1522	struct ev_timer to;	2127	ev_timer to;
1523	void (cb)(int revents, void arg);	2128	void (cb)(int revents, void arg);
1524	void *arg;	2129	void *arg;
1525	};	2130	};
1526		2131
1527	static void	2132	static void
…		…
1536		2141
1537	cb (revents, arg);	2142	cb (revents, arg);
1538	}	2143	}
1539		2144
1540	static void	2145	static void
1541	once_cb_io (EV_P_ struct ev_io *w, int revents)	2146	once_cb_io (EV_P_ ev_io *w, int revents)
1542	{	2147	{
1543	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	2148	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1544	}	2149	}
1545		2150
1546	static void	2151	static void
1547	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2152	once_cb_to (EV_P_ ev_timer *w, int revents)
1548	{	2153	{
1549	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	2154	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1550	}	2155	}
1551		2156
1552	void	2157	void
1553	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	2158	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1554	{	2159	{
1555	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	2160	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1556		2161
1557	if (!once)	2162	if (expect_false (!once))
		2163	{
1558	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	2164	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1559	else	2165	return;
1560	{	2166	}
		2167
1561	once->cb = cb;	2168	once->cb = cb;
1562	once->arg = arg;	2169	once->arg = arg;
1563		2170
1564	ev_watcher_init (&once->io, once_cb_io);	2171	ev_init (&once->io, once_cb_io);
1565	if (fd >= 0)	2172	if (fd >= 0)
1566	{	2173	{
1567	ev_io_set (&once->io, fd, events);	2174	ev_io_set (&once->io, fd, events);
1568	ev_io_start (EV_A_ &once->io);	2175	ev_io_start (EV_A_ &once->io);
1569	}	2176	}
1570		2177
1571	ev_watcher_init (&once->to, once_cb_to);	2178	ev_init (&once->to, once_cb_to);
1572	if (timeout >= 0.)	2179	if (timeout >= 0.)
1573	{	2180	{
1574	ev_timer_set (&once->to, timeout, 0.);	2181	ev_timer_set (&once->to, timeout, 0.);
1575	ev_timer_start (EV_A_ &once->to);	2182	ev_timer_start (EV_A_ &once->to);
1576	}
1577	}	2183	}
1578	}	2184	}
1579		2185
		2186	#ifdef __cplusplus
		2187	}
		2188	#endif
		2189

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Comparing libev/ev.c (file contents): Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC vs. Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC vs.
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC