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

Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
58	#include <stdlib.h>	98	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	99	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	100	#include <stddef.h>
63		101
64	#include <stdio.h>	102	#include <stdio.h>
65		103
66	#include <assert.h>	104	#include <assert.h>
67	#include <errno.h>	105	#include <errno.h>
68	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
69	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
70	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	120	# endif
72	#include <sys/time.h>	121	#endif
73	#include <time.h>
74		122
75	/**/	123	/**/
76		124
77	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
79	#endif	131	#endif
80		132
81	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
83	#endif	135	#endif
84		136
85	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
87	#endif	143	#endif
88		144
89	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
91	#endif	147	#endif
92		148
93	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
95	#endif	151	#endif
96		152
97	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
98	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
99	#endif	155	#endif
100		156
101	/**/	157	/**/
102		158
103	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
108	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
111	#endif	167	#endif
112		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
113	/**/	173	/**/
114		174
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
119		179
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
120	#include "ev.h"	183	# include "ev.h"
		184	#endif
121		185
122	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	188	# define inline static inline
125	#else	189	#else
126	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
127	# define inline static	191	# define inline static
128	#endif	192	#endif
129		193
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
132		196
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
136	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
139		206
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		208
		209	#ifdef _WIN32
		210	# include "ev_win32.c"
		211	#endif
		212
142	/*****************************************************************************/	213	/*****************************************************************************/
143		214
		215	static void (syserr_cb)(const char msg);
		216
		217	void ev_set_syserr_cb (void (cb)(const char msg))
		218	{
		219	syserr_cb = cb;
		220	}
		221
		222	static void
		223	syserr (const char *msg)
		224	{
		225	if (!msg)
		226	msg = "(libev) system error";
		227
		228	if (syserr_cb)
		229	syserr_cb (msg);
		230	else
		231	{
		232	perror (msg);
		233	abort ();
		234	}
		235	}
		236
		237	static void (alloc)(void *ptr, long size);
		238
		239	void ev_set_allocator (void (cb)(void *ptr, long size))
		240	{
		241	alloc = cb;
		242	}
		243
		244	static void *
		245	ev_realloc (void *ptr, long size)
		246	{
		247	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		248
		249	if (!ptr && size)
		250	{
		251	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		252	abort ();
		253	}
		254
		255	return ptr;
		256	}
		257
		258	#define ev_malloc(size) ev_realloc (0, (size))
		259	#define ev_free(ptr) ev_realloc ((ptr), 0)
		260
		261	/*****************************************************************************/
		262
144	typedef struct	263	typedef struct
145	{	264	{
146	struct ev_watcher_list *head;	265	WL head;
147	unsigned char events;	266	unsigned char events;
148	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
149	} ANFD;	271	} ANFD;
150		272
151	typedef struct	273	typedef struct
152	{	274	{
153	W w;	275	W w;
154	int events;	276	int events;
155	} ANPENDING;	277	} ANPENDING;
156		278
157	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
158		280
159	struct ev_loop	281	struct ev_loop
160	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	286	#include "ev_vars.h"
163	};
164	# undef VAR	287	#undef VAR
		288	};
165	# include "ev_wrap.h"	289	#include "ev_wrap.h"
		290
		291	static struct ev_loop default_loop_struct;
		292	struct ev_loop *ev_default_loop_ptr;
166		293
167	#else	294	#else
168		295
		296	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	298	#include "ev_vars.h"
171	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
172		302
173	#endif	303	#endif
174		304
175	/*****************************************************************************/	305	/*****************************************************************************/
176		306
177	inline ev_tstamp	307	ev_tstamp
178	ev_time (void)	308	ev_time (void)
179	{	309	{
180	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
181	struct timespec ts;	311	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	331	#endif
202		332
203	return ev_time ();	333	return ev_time ();
204	}	334	}
205		335
		336	#if EV_MULTIPLICITY
206	ev_tstamp	337	ev_tstamp
207	ev_now (EV_P)	338	ev_now (EV_P)
208	{	339	{
209	return rt_now;	340	return ev_rt_now;
210	}	341	}
		342	#endif
211		343
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
213		345
214	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
216	{ \	348	{ \
217	int newcnt = cur; \	349	int newcnt = cur; \
218	do \	350	do \
219	{ \	351	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	353	} \
222	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
223	\	355	\
224	base = realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	358	cur = newcnt; \
227	}	359	}
		360
		361	#define array_slim(type,stem) \
		362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		363	{ \
		364	stem ## max = array_roundsize (stem ## cnt >> 1); \
		365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		367	}
		368
		369	#define array_free(stem, idx) \
		370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		371
229	/*****************************************************************************/	372	/*****************************************************************************/
230		373
231	static void	374	static void
232	anfds_init (ANFD *base, int count)	375	anfds_init (ANFD *base, int count)
…		…
239		382
240	++base;	383	++base;
241	}	384	}
242	}	385	}
243		386
244	static void	387	void
245	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
246	{	389	{
247	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
248	{	393	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	395	return;
251	}	396	}
252		397
253	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	402	}
258		403
259	static void	404	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	406	{
262	int i;	407	int i;
263		408
264	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
266	}	411	}
267		412
268	static void	413	inline void
269	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
270	{	415	{
271	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	417	struct ev_io *w;
273		418
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	419	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	420	{
276	int ev = w->events & events;	421	int ev = w->events & revents;
277		422
278	if (ev)	423	if (ev)
279	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
280	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
281	}	432	}
282		433
283	/*****************************************************************************/	434	/*****************************************************************************/
284		435
285	static void	436	inline void
286	fd_reify (EV_P)	437	fd_reify (EV_P)
287	{	438	{
288	int i;	439	int i;
289		440
290	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
296	int events = 0;	447	int events = 0;
297		448
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	450	events \|= w->events;
300		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
301	anfd->reify = 0;	461	anfd->reify = 0;
302		462
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	464	anfd->events = events;
307	}
308	}	465	}
309		466
310	fdchangecnt = 0;	467	fdchangecnt = 0;
311	}	468	}
312		469
313	static void	470	static void
314	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
315	{	472	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
317	return;	474	return;
318		475
319	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
320		477
321	++fdchangecnt;	478	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
323	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
324	}	481	}
325		482
326	static void	483	static void
327	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	486	struct ev_io *w;
330		487
331	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
332	{	489	{
333	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	492	}
		493	}
		494
		495	inline int
		496	fd_valid (int fd)
		497	{
		498	#ifdef _WIN32
		499	return _get_osfhandle (fd) != -1;
		500	#else
		501	return fcntl (fd, F_GETFD) != -1;
		502	#endif
336	}	503	}
337		504
338	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
339	static void	506	static void
340	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
341	{	508	{
342	int fd;	509	int fd;
343		510
344	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	512	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
348	}	515	}
349		516
350	/* called on ENOMEM in select/poll to kill some fds and retry */	517	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	518	static void
352	fd_enomem (EV_P)	519	fd_enomem (EV_P)
353	{	520	{
354	int fd = anfdmax;	521	int fd;
355		522
356	while (fd--)	523	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	524	if (anfds [fd].events)
358	{	525	{
359	close (fd);
360	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
361	return;	527	return;
362	}	528	}
363	}	529	}
364		530
365	/* susually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
366	static void	532	static void
367	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
368	{	534	{
369	int fd;	535	int fd;
370		536
…		…
385	WT w = heap [k];	551	WT w = heap [k];
386		552
387	while (k && heap [k >> 1]->at > w->at)	553	while (k && heap [k >> 1]->at > w->at)
388	{	554	{
389	heap [k] = heap [k >> 1];	555	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	556	((W)heap [k])->active = k + 1;
391	k >>= 1;	557	k >>= 1;
392	}	558	}
393		559
394	heap [k] = w;	560	heap [k] = w;
395	heap [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
396		562
397	}	563	}
398		564
399	static void	565	static void
400	downheap (WT *heap, int N, int k)	566	downheap (WT *heap, int N, int k)
…		…
410		576
411	if (w->at <= heap [j]->at)	577	if (w->at <= heap [j]->at)
412	break;	578	break;
413		579
414	heap [k] = heap [j];	580	heap [k] = heap [j];
415	heap [k]->active = k + 1;	581	((W)heap [k])->active = k + 1;
416	k = j;	582	k = j;
417	}	583	}
418		584
419	heap [k] = w;	585	heap [k] = w;
420	heap [k]->active = k + 1;	586	((W)heap [k])->active = k + 1;
		587	}
		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
421	}	594	}
422		595
423	/*****************************************************************************/	596	/*****************************************************************************/
424		597
425	typedef struct	598	typedef struct
426	{	599	{
427	struct ev_watcher_list *head;	600	WL head;
428	sig_atomic_t volatile gotsig;	601	sig_atomic_t volatile gotsig;
429	} ANSIG;	602	} ANSIG;
430		603
431	static ANSIG *signals;	604	static ANSIG *signals;
432	static int signalmax;	605	static int signalmax;
…		…
448	}	621	}
449		622
450	static void	623	static void
451	sighandler (int signum)	624	sighandler (int signum)
452	{	625	{
		626	#if _WIN32
		627	signal (signum, sighandler);
		628	#endif
		629
453	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
454		631
455	if (!gotsig)	632	if (!gotsig)
456	{	633	{
457	int old_errno = errno;	634	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	637	errno = old_errno;
461	}	638	}
462	}	639	}
463		640
		641	void
		642	ev_feed_signal_event (EV_P_ int signum)
		643	{
		644	WL w;
		645
		646	#if EV_MULTIPLICITY
		647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		648	#endif
		649
		650	--signum;
		651
		652	if (signum < 0 \|\| signum >= signalmax)
		653	return;
		654
		655	signals [signum].gotsig = 0;
		656
		657	for (w = signals [signum].head; w; w = w->next)
		658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		659	}
		660
464	static void	661	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	663	{
467	struct ev_watcher_list *w;
468	int signum;	664	int signum;
469		665
470	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	667	gotsig = 0;
472		668
473	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
475	{	671	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	672	}
477		673
478	for (w = signals [signum].head; w; w = w->next)	674	static void
479	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
480	}	676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
481	}	684	}
482		685
483	static void	686	static void
484	siginit (EV_P)	687	siginit (EV_P)
485	{	688	{
486	#ifndef WIN32	689	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
488	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
489
490	/* rather than sort out wether we really need nb, set it */
491	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
492	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
493	#endif
494		691
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	695	}
499		696
500	/*****************************************************************************/	697	/*****************************************************************************/
501		698
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
		700
		701	#ifndef _WIN32
		702
505	static struct ev_signal childev;	703	static struct ev_signal childev;
506		704
507	#ifndef WCONTINUED	705	#ifndef WCONTINUED
508	# define WCONTINUED 0	706	# define WCONTINUED 0
509	#endif	707	#endif
…		…
514	struct ev_child *w;	712	struct ev_child *w;
515		713
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	714	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
517	if (w->pid == pid \|\| !w->pid)	715	if (w->pid == pid \|\| !w->pid)
518	{	716	{
519	w->priority = sw->priority; /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	718	w->rpid = pid;
521	w->rstatus = status;	719	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	721	}
524	}	722	}
525		723
526	static void	724	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	727	int pid, status;
530		728
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	730	{
533	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
		732	/* we need to do it this way so that the callback gets called before we continue */
534	event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		734
536	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
537	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
538	}	737	}
539	}	738	}
540		739
541	#endif	740	#endif
542		741
543	/*****************************************************************************/	742	/*****************************************************************************/
544		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
545	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
546	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
547	#endif	749	#endif
548	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
549	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
569		771
570	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	773	static int
572	enable_secure (void)	774	enable_secure (void)
573	{	775	{
574	#ifdef WIN32	776	#ifdef _WIN32
575	return 0;	777	return 0;
576	#else	778	#else
577	return getuid () != geteuid ()	779	return getuid () != geteuid ()
578	\|\| getgid () != getegid ();	780	\|\| getgid () != getegid ();
579	#endif	781	#endif
580	}	782	}
581		783
582	int	784	unsigned int
583	ev_method (EV_P)	785	ev_supported_backends (void)
584	{	786	{
585	return method;	787	unsigned int flags = 0;
586	}
587		788
588	static void	789	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
589	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
590	{	800	{
591	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
592	{	826	{
593	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
594	{	828	{
595	struct timespec ts;	829	struct timespec ts;
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	831	have_monotonic = 1;
598	}	832	}
599	#endif	833	#endif
600		834
601	rt_now = ev_time ();	835	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	836	mn_now = get_clock ();
603	now_floor = mn_now;	837	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
605		839
606	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
609	else
610	methods = EVMETHOD_ANY;
611		844
612	method = 0;	845	if (!(flags & 0x0000ffffUL))
		846	flags \|= ev_recommended_backends ();
		847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
		851	#endif
613	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
615	#endif	854	#endif
616	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
618	#endif	857	#endif
619	#if EV_USE_POLL	858	#if EV_USE_POLL
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
621	#endif	860	#endif
622	#if EV_USE_SELECT	861	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
624	#endif	863	#endif
625	}
626	}
627		864
628	void	865	ev_init (&sigev, sigcb);
		866	ev_set_priority (&sigev, EV_MAXPRI);
		867	}
		868	}
		869
		870	static void
629	loop_destroy (EV_P)	871	loop_destroy (EV_P)
630	{	872	{
		873	int i;
		874
		875	#if EV_USE_PORT
		876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
		877	#endif
631	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
633	#endif	880	#endif
634	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
636	#endif	883	#endif
637	#if EV_USE_POLL	884	#if EV_USE_POLL
638	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
639	#endif	886	#endif
640	#if EV_USE_SELECT	887	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
642	#endif	889	#endif
643		890
644	method = 0;	891	for (i = NUMPRI; i--; )
645	/TODO/	892	array_free (pending, [i]);
646	}
647		893
648	void	894	/* have to use the microsoft-never-gets-it-right macro */
		895	array_free (fdchange, EMPTY0);
		896	array_free (timer, EMPTY0);
		897	#if EV_PERIODICS
		898	array_free (periodic, EMPTY0);
		899	#endif
		900	array_free (idle, EMPTY0);
		901	array_free (prepare, EMPTY0);
		902	array_free (check, EMPTY0);
		903
		904	backend = 0;
		905	}
		906
		907	static void
649	loop_fork (EV_P)	908	loop_fork (EV_P)
650	{	909	{
651	/TODO/	910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
652	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
654	#endif	918	#endif
655	#if EV_USE_KQUEUE	919
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	920	if (ev_is_active (&sigev))
657	#endif	921	{
		922	/* default loop */
		923
		924	ev_ref (EV_A);
		925	ev_io_stop (EV_A_ &sigev);
		926	close (sigpipe [0]);
		927	close (sigpipe [1]);
		928
		929	while (pipe (sigpipe))
		930	syserr ("(libev) error creating pipe");
		931
		932	siginit (EV_A);
		933	}
		934
		935	postfork = 0;
658	}	936	}
659		937
660	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
661	struct ev_loop *	939	struct ev_loop *
662	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
663	{	941	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	942	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
665		943
		944	memset (loop, 0, sizeof (struct ev_loop));
		945
666	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
667		947
668	if (ev_method (EV_A))	948	if (ev_backend (EV_A))
669	return loop;	949	return loop;
670		950
671	return 0;	951	return 0;
672	}	952	}
673		953
674	void	954	void
675	ev_loop_destroy (EV_P)	955	ev_loop_destroy (EV_P)
676	{	956	{
677	loop_destroy (EV_A);	957	loop_destroy (EV_A);
678	free (loop);	958	ev_free (loop);
679	}	959	}
680		960
681	void	961	void
682	ev_loop_fork (EV_P)	962	ev_loop_fork (EV_P)
683	{	963	{
684	loop_fork (EV_A);	964	postfork = 1;
685	}	965	}
686		966
687	#endif	967	#endif
688		968
689	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
694	#else	972	#else
695	static int default_loop;
696
697	int	973	int
		974	ev_default_loop (unsigned int flags)
698	#endif	975	#endif
699	ev_default_loop (int methods)
700	{	976	{
701	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
702	if (pipe (sigpipe))	978	if (pipe (sigpipe))
703	return 0;	979	return 0;
704		980
705	if (!default_loop)	981	if (!ev_default_loop_ptr)
706	{	982	{
707	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
708	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
709	#else	985	#else
710	default_loop = 1;	986	ev_default_loop_ptr = 1;
711	#endif	987	#endif
712		988
713	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
714		990
715	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
716	{	992	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	993	siginit (EV_A);
720		994
721	#ifndef WIN32	995	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	1000	#endif
727	}	1001	}
728	else	1002	else
729	default_loop = 0;	1003	ev_default_loop_ptr = 0;
730	}	1004	}
731		1005
732	return default_loop;	1006	return ev_default_loop_ptr;
733	}	1007	}
734		1008
735	void	1009	void
736	ev_default_destroy (void)	1010	ev_default_destroy (void)
737	{	1011	{
738	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
740	#endif	1014	#endif
741		1015
		1016	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
		1019	#endif
744		1020
745	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	1022	ev_io_stop (EV_A_ &sigev);
747		1023
748	close (sigpipe [0]); sigpipe [0] = 0;	1024	close (sigpipe [0]); sigpipe [0] = 0;
…		…
753		1029
754	void	1030	void
755	ev_default_fork (void)	1031	ev_default_fork (void)
756	{	1032	{
757	#if EV_MULTIPLICITY	1033	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	1034	struct ev_loop *loop = ev_default_loop_ptr;
759	#endif	1035	#endif
760		1036
761	loop_fork (EV_A);	1037	if (backend)
762		1038	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	1039	}
771		1040
772	/*****************************************************************************/	1041	/*****************************************************************************/
773		1042
774	static void	1043	static int
		1044	any_pending (EV_P)
		1045	{
		1046	int pri;
		1047
		1048	for (pri = NUMPRI; pri--; )
		1049	if (pendingcnt [pri])
		1050	return 1;
		1051
		1052	return 0;
		1053	}
		1054
		1055	inline void
775	call_pending (EV_P)	1056	call_pending (EV_P)
776	{	1057	{
777	int pri;	1058	int pri;
778		1059
779	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
780	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
781	{	1062	{
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		1064
784	if (p->w)	1065	if (expect_true (p->w))
785	{	1066	{
786	p->w->pending = 0;	1067	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
788	}	1069	}
789	}	1070	}
790	}	1071	}
791		1072
792	static void	1073	inline void
793	timers_reify (EV_P)	1074	timers_reify (EV_P)
794	{	1075	{
795	while (timercnt && timers [0]->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	1077	{
797	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
		1079
		1080	assert (("inactive timer on timer heap detected", ev_is_active (w)));
798		1081
799	/* first reschedule or stop timer */	1082	/* first reschedule or stop timer */
800	if (w->repeat)	1083	if (w->repeat)
801	{	1084	{
802	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1085	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1086
803	w->at = mn_now + w->repeat;	1087	((WT)w)->at += w->repeat;
		1088	if (((WT)w)->at < mn_now)
		1089	((WT)w)->at = mn_now;
		1090
804	downheap ((WT *)timers, timercnt, 0);	1091	downheap ((WT *)timers, timercnt, 0);
805	}	1092	}
806	else	1093	else
807	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1094	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
808		1095
809	event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
810	}	1097	}
811	}	1098	}
812		1099
813	static void	1100	#if EV_PERIODICS
		1101	inline void
814	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
815	{	1103	{
816	while (periodiccnt && periodics [0]->at <= rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
817	{	1105	{
818	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
819		1107
		1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1109
820	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
821	if (w->interval)	1111	if (w->reschedule_cb)
822	{	1112	{
		1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1115	downheap ((WT *)periodics, periodiccnt, 0);
		1116	}
		1117	else if (w->interval)
		1118	{
823	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1119	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
824	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1120	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
825	downheap ((WT *)periodics, periodiccnt, 0);	1121	downheap ((WT *)periodics, periodiccnt, 0);
826	}	1122	}
827	else	1123	else
828	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1124	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
829		1125
830	event (EV_A_ (W)w, EV_PERIODIC);	1126	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
831	}	1127	}
832	}	1128	}
833		1129
834	static void	1130	static void
835	periodics_reschedule (EV_P)	1131	periodics_reschedule (EV_P)
…		…
839	/* adjust periodics after time jump */	1135	/* adjust periodics after time jump */
840	for (i = 0; i < periodiccnt; ++i)	1136	for (i = 0; i < periodiccnt; ++i)
841	{	1137	{
842	struct ev_periodic *w = periodics [i];	1138	struct ev_periodic *w = periodics [i];
843		1139
		1140	if (w->reschedule_cb)
		1141	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
844	if (w->interval)	1142	else if (w->interval)
845	{
846	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1143	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
847
848	if (fabs (diff) >= 1e-4)
849	{
850	ev_periodic_stop (EV_A_ w);
851	ev_periodic_start (EV_A_ w);
852
853	i = 0; /* restart loop, inefficient, but time jumps should be rare */
854	}
855	}
856	}	1144	}
		1145
		1146	/* now rebuild the heap */
		1147	for (i = periodiccnt >> 1; i--; )
		1148	downheap ((WT *)periodics, periodiccnt, i);
857	}	1149	}
		1150	#endif
858		1151
859	inline int	1152	inline int
860	time_update_monotonic (EV_P)	1153	time_update_monotonic (EV_P)
861	{	1154	{
862	mn_now = get_clock ();	1155	mn_now = get_clock ();
863		1156
864	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1157	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
865	{	1158	{
866	rt_now = rtmn_diff + mn_now;	1159	ev_rt_now = rtmn_diff + mn_now;
867	return 0;	1160	return 0;
868	}	1161	}
869	else	1162	else
870	{	1163	{
871	now_floor = mn_now;	1164	now_floor = mn_now;
872	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
873	return 1;	1166	return 1;
874	}	1167	}
875	}	1168	}
876		1169
877	static void	1170	inline void
878	time_update (EV_P)	1171	time_update (EV_P)
879	{	1172	{
880	int i;	1173	int i;
881		1174
882	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
886	{	1179	{
887	ev_tstamp odiff = rtmn_diff;	1180	ev_tstamp odiff = rtmn_diff;
888		1181
889	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1182	for (i = 4; --i; ) /* loop a few times, before making important decisions */
890	{	1183	{
891	rtmn_diff = rt_now - mn_now;	1184	rtmn_diff = ev_rt_now - mn_now;
892		1185
893	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1186	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
894	return; /* all is well */	1187	return; /* all is well */
895		1188
896	rt_now = ev_time ();	1189	ev_rt_now = ev_time ();
897	mn_now = get_clock ();	1190	mn_now = get_clock ();
898	now_floor = mn_now;	1191	now_floor = mn_now;
899	}	1192	}
900		1193
		1194	# if EV_PERIODICS
901	periodics_reschedule (EV_A);	1195	periodics_reschedule (EV_A);
		1196	# endif
902	/* no timer adjustment, as the monotonic clock doesn't jump */	1197	/* no timer adjustment, as the monotonic clock doesn't jump */
903	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1198	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
904	}	1199	}
905	}	1200	}
906	else	1201	else
907	#endif	1202	#endif
908	{	1203	{
909	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
910		1205
911	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1206	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
912	{	1207	{
		1208	#if EV_PERIODICS
913	periodics_reschedule (EV_A);	1209	periodics_reschedule (EV_A);
		1210	#endif
914		1211
915	/* adjust timers. this is easy, as the offset is the same for all */	1212	/* adjust timers. this is easy, as the offset is the same for all */
916	for (i = 0; i < timercnt; ++i)	1213	for (i = 0; i < timercnt; ++i)
917	timers [i]->at += rt_now - mn_now;	1214	((WT)timers [i])->at += ev_rt_now - mn_now;
918	}	1215	}
919		1216
920	mn_now = rt_now;	1217	mn_now = ev_rt_now;
921	}	1218	}
922	}	1219	}
923		1220
924	void	1221	void
925	ev_ref (EV_P)	1222	ev_ref (EV_P)
…		…
939	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
940	{	1237	{
941	double block;	1238	double block;
942	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
943		1240
944	do	1241	while (activecnt)
945	{	1242	{
946	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
947	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
948	{	1245	{
949	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
950	call_pending (EV_A);	1247	call_pending (EV_A);
951	}	1248	}
952		1249
		1250	/* we might have forked, so reify kernel state if necessary */
		1251	if (expect_false (postfork))
		1252	loop_fork (EV_A);
		1253
953	/* update fd-related kernel structures */	1254	/* update fd-related kernel structures */
954	fd_reify (EV_A);	1255	fd_reify (EV_A);
955		1256
956	/* calculate blocking time */	1257	/* calculate blocking time */
957		1258
958	/* we only need this for !monotonic clockor timers, but as we basically	1259	/* we only need this for !monotonic clock or timers, but as we basically
959	always have timers, we just calculate it always */	1260	always have timers, we just calculate it always */
960	#if EV_USE_MONOTONIC	1261	#if EV_USE_MONOTONIC
961	if (expect_true (have_monotonic))	1262	if (expect_true (have_monotonic))
962	time_update_monotonic (EV_A);	1263	time_update_monotonic (EV_A);
963	else	1264	else
964	#endif	1265	#endif
965	{	1266	{
966	rt_now = ev_time ();	1267	ev_rt_now = ev_time ();
967	mn_now = rt_now;	1268	mn_now = ev_rt_now;
968	}	1269	}
969		1270
970	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1271	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
971	block = 0.;	1272	block = 0.;
972	else	1273	else
973	{	1274	{
974	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
975		1276
976	if (timercnt)	1277	if (timercnt)
977	{	1278	{
978	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
979	if (block > to) block = to;	1280	if (block > to) block = to;
980	}	1281	}
981		1282
		1283	#if EV_PERIODICS
982	if (periodiccnt)	1284	if (periodiccnt)
983	{	1285	{
984	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
985	if (block > to) block = to;	1287	if (block > to) block = to;
986	}	1288	}
		1289	#endif
987		1290
988	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
989	}	1292	}
990		1293
991	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
992		1295
993	/* update rt_now, do magic */	1296	/* update ev_rt_now, do magic */
994	time_update (EV_A);	1297	time_update (EV_A);
995		1298
996	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
997	timers_reify (EV_A); /* relative timers called last */	1300	timers_reify (EV_A); /* relative timers called last */
		1301	#if EV_PERIODICS
998	periodics_reify (EV_A); /* absolute timers called first */	1302	periodics_reify (EV_A); /* absolute timers called first */
		1303	#endif
999		1304
1000	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
1001	if (!pendingcnt)	1306	if (idlecnt && !any_pending (EV_A))
1002	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1003		1308
1004	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
1005	if (checkcnt)	1310	if (expect_false (checkcnt))
1006	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1007		1312
1008	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
1009	}	1317	}
1010	while (activecnt && !loop_done);
1011		1318
1012	if (loop_done != 2)	1319	if (loop_done != 2)
1013	loop_done = 0;	1320	loop_done = 0;
1014	}	1321	}
1015		1322
…		…
1075	void	1382	void
1076	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1077	{	1384	{
1078	int fd = w->fd;	1385	int fd = w->fd;
1079		1386
1080	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1081	return;	1388	return;
1082		1389
1083	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1084		1391
1085	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
1086	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1393	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1087	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1394	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1088		1395
1089	fd_change (EV_A_ fd);	1396	fd_change (EV_A_ fd);
1090	}	1397	}
1091		1398
1092	void	1399	void
1093	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1094	{	1401	{
1095	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1096	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1097	return;	1404	return;
		1405
		1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1098		1407
1099	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1100	ev_stop (EV_A_ (W)w);	1409	ev_stop (EV_A_ (W)w);
1101		1410
1102	fd_change (EV_A_ w->fd);	1411	fd_change (EV_A_ w->fd);
1103	}	1412	}
1104		1413
1105	void	1414	void
1106	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1107	{	1416	{
1108	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1109	return;	1418	return;
1110		1419
1111	w->at += mn_now;	1420	((WT)w)->at += mn_now;
1112		1421
1113	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1114		1423
1115	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1116	array_needsize (timers, timermax, timercnt, );	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1117	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1118	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
		1428
		1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1119	}	1430	}
1120		1431
1121	void	1432	void
1122	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1123	{	1434	{
1124	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1125	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1126	return;	1437	return;
1127		1438
		1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1440
1128	if (w->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1129	{	1442	{
1130	timers [w->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1131	downheap ((WT *)timers, timercnt, w->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1132	}	1445	}
1133		1446
1134	w->at = w->repeat;	1447	((WT)w)->at -= mn_now;
1135		1448
1136	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1137	}	1450	}
1138		1451
1139	void	1452	void
…		…
1141	{	1454	{
1142	if (ev_is_active (w))	1455	if (ev_is_active (w))
1143	{	1456	{
1144	if (w->repeat)	1457	if (w->repeat)
1145	{	1458	{
1146	w->at = mn_now + w->repeat;	1459	((WT)w)->at = mn_now + w->repeat;
1147	downheap ((WT *)timers, timercnt, w->active - 1);	1460	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1148	}	1461	}
1149	else	1462	else
1150	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1151	}	1464	}
1152	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1153	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1154	}	1470	}
1155		1471
		1472	#if EV_PERIODICS
1156	void	1473	void
1157	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1158	{	1475	{
1159	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1160	return;	1477	return;
1161		1478
		1479	if (w->reschedule_cb)
		1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1481	else if (w->interval)
		1482	{
1162	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1483	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1163
1164	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1165	if (w->interval)
1166	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1486	}
1167		1487
1168	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1169	array_needsize (periodics, periodicmax, periodiccnt, );	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1170	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1171	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
		1492
		1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1172	}	1494	}
1173		1495
1174	void	1496	void
1175	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1176	{	1498	{
1177	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1178	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1179	return;	1501	return;
1180		1502
		1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1504
1181	if (w->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1182	{	1506	{
1183	periodics [w->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1184	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1185	}	1509	}
1186		1510
1187	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1188	}	1512	}
1189		1513
1190	void	1514	void
		1515	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1516	{
		1517	/* TODO: use adjustheap and recalculation */
		1518	ev_periodic_stop (EV_A_ w);
		1519	ev_periodic_start (EV_A_ w);
		1520	}
		1521	#endif
		1522
		1523	void
1191	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1192	{	1525	{
1193	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1194	return;	1527	return;
1195		1528
1196	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1197	array_needsize (idles, idlemax, idlecnt, );	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1198	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1199	}	1532	}
1200		1533
1201	void	1534	void
1202	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1203	{	1536	{
1204	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1205	if (ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1206	return;	1539	return;
1207		1540
1208	idles [w->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1209	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1210	}	1543	}
1211		1544
1212	void	1545	void
1213	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1214	{	1547	{
1215	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1216	return;	1549	return;
1217		1550
1218	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1219	array_needsize (prepares, preparemax, preparecnt, );	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1220	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1221	}	1554	}
1222		1555
1223	void	1556	void
1224	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1225	{	1558	{
1226	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1227	if (ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1228	return;	1561	return;
1229		1562
1230	prepares [w->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1231	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1232	}	1565	}
1233		1566
1234	void	1567	void
1235	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1236	{	1569	{
1237	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1238	return;	1571	return;
1239		1572
1240	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1241	array_needsize (checks, checkmax, checkcnt, );	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1242	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1243	}	1576	}
1244		1577
1245	void	1578	void
1246	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1247	{	1580	{
1248	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1249	if (ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1250	return;	1583	return;
1251		1584
1252	checks [w->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1253	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1254	}	1587	}
1255		1588
1256	#ifndef SA_RESTART	1589	#ifndef SA_RESTART
1257	# define SA_RESTART 0	1590	# define SA_RESTART 0
…		…
1259		1592
1260	void	1593	void
1261	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1262	{	1595	{
1263	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1264	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1265	#endif	1598	#endif
1266	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1267	return;	1600	return;
1268		1601
1269	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1270		1603
1271	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1272	array_needsize (signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1273	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1274		1607
1275	if (!w->next)	1608	if (!((WL)w)->next)
1276	{	1609	{
		1610	#if _WIN32
		1611	signal (w->signum, sighandler);
		1612	#else
1277	struct sigaction sa;	1613	struct sigaction sa;
1278	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1279	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
1280	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1616	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1281	sigaction (w->signum, &sa, 0);	1617	sigaction (w->signum, &sa, 0);
		1618	#endif
1282	}	1619	}
1283	}	1620	}
1284		1621
1285	void	1622	void
1286	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1287	{	1624	{
1288	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1289	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1290	return;	1627	return;
1291		1628
1292	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1293	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1294		1631
…		…
1298		1635
1299	void	1636	void
1300	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1301	{	1638	{
1302	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1303	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1304	#endif	1641	#endif
1305	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1306	return;	1643	return;
1307		1644
1308	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1309	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1310	}	1647	}
1311		1648
1312	void	1649	void
1313	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1314	{	1651	{
1315	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1316	if (ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1317	return;	1654	return;
1318		1655
1319	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1320	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1321	}	1658	}
…		…
1336	void (cb)(int revents, void arg) = once->cb;	1673	void (cb)(int revents, void arg) = once->cb;
1337	void *arg = once->arg;	1674	void *arg = once->arg;
1338		1675
1339	ev_io_stop (EV_A_ &once->io);	1676	ev_io_stop (EV_A_ &once->io);
1340	ev_timer_stop (EV_A_ &once->to);	1677	ev_timer_stop (EV_A_ &once->to);
1341	free (once);	1678	ev_free (once);
1342		1679
1343	cb (revents, arg);	1680	cb (revents, arg);
1344	}	1681	}
1345		1682
1346	static void	1683	static void
…		…
1356	}	1693	}
1357		1694
1358	void	1695	void
1359	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1360	{	1697	{
1361	struct ev_once *once = malloc (sizeof (struct ev_once));	1698	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1362		1699
1363	if (!once)	1700	if (expect_false (!once))
		1701	{
1364	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1702	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1365	else	1703	return;
1366	{	1704	}
		1705
1367	once->cb = cb;	1706	once->cb = cb;
1368	once->arg = arg;	1707	once->arg = arg;
1369		1708
1370	ev_watcher_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1371	if (fd >= 0)	1710	if (fd >= 0)
1372	{	1711	{
1373	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1374	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1375	}	1714	}
1376		1715
1377	ev_watcher_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1378	if (timeout >= 0.)	1717	if (timeout >= 0.)
1379	{	1718	{
1380	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1381	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1382	}
1383	}	1721	}
1384	}	1722	}
1385		1723
		1724	#ifdef __cplusplus
		1725	}
		1726	#endif
		1727

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Comparing libev/ev.c (file contents): Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs. Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC