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

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 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
53	# endif	97	# endif
54		98
55	#endif	99	#endif
56		100
57	#include <math.h>	101	#include <math.h>
58	#include <stdlib.h>	102	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	103	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	104	#include <stddef.h>
63		105
64	#include <stdio.h>	106	#include <stdio.h>
65		107
66	#include <assert.h>	108	#include <assert.h>
67	#include <errno.h>	109	#include <errno.h>
68	#include <sys/types.h>	110	#include <sys/types.h>
		111	#include <time.h>
		112
		113	#include <signal.h>
		114
69	#ifndef WIN32	115	#ifndef _WIN32
		116	# include <unistd.h>
		117	# include <sys/time.h>
70	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	124	# endif
72	#include <sys/time.h>	125	#endif
73	#include <time.h>
74		126
75	/**/	127	/**/
76		128
77	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
79	#endif	135	#endif
80		136
81	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
83	#endif	139	#endif
84		140
85	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
87	#endif	147	#endif
88		148
89	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
91	#endif	151	#endif
92		152
93	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
95	#endif	155	#endif
96		156
97	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
98	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
99	#endif	159	#endif
100		160
101	/**/	161	/**/
102		162
103	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
108	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
111	#endif	171	#endif
112		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
113	/**/	177	/**/
114		178
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
119		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
120	#include "ev.h"	187	# include "ev.h"
		188	#endif
121		189
122	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	192	# define inline static inline
125	#else	193	#else
126	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
127	# define inline static	195	# define inline static
128	#endif	196	#endif
129		197
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
132		200
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
136	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
139		210
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		212
		213	#ifdef _WIN32
		214	# include "ev_win32.c"
		215	#endif
		216
142	/*****************************************************************************/	217	/*****************************************************************************/
143		218
		219	static void (syserr_cb)(const char msg);
		220
		221	void ev_set_syserr_cb (void (cb)(const char msg))
		222	{
		223	syserr_cb = cb;
		224	}
		225
		226	static void
		227	syserr (const char *msg)
		228	{
		229	if (!msg)
		230	msg = "(libev) system error";
		231
		232	if (syserr_cb)
		233	syserr_cb (msg);
		234	else
		235	{
		236	perror (msg);
		237	abort ();
		238	}
		239	}
		240
		241	static void (alloc)(void *ptr, long size);
		242
		243	void ev_set_allocator (void (cb)(void *ptr, long size))
		244	{
		245	alloc = cb;
		246	}
		247
		248	static void *
		249	ev_realloc (void *ptr, long size)
		250	{
		251	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		252
		253	if (!ptr && size)
		254	{
		255	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		256	abort ();
		257	}
		258
		259	return ptr;
		260	}
		261
		262	#define ev_malloc(size) ev_realloc (0, (size))
		263	#define ev_free(ptr) ev_realloc ((ptr), 0)
		264
		265	/*****************************************************************************/
		266
144	typedef struct	267	typedef struct
145	{	268	{
146	struct ev_watcher_list *head;	269	WL head;
147	unsigned char events;	270	unsigned char events;
148	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
149	} ANFD;	275	} ANFD;
150		276
151	typedef struct	277	typedef struct
152	{	278	{
153	W w;	279	W w;
154	int events;	280	int events;
155	} ANPENDING;	281	} ANPENDING;
156		282
157	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
158		284
159	struct ev_loop	285	struct ev_loop
160	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	290	#include "ev_vars.h"
163	};
164	# undef VAR	291	#undef VAR
		292	};
165	# include "ev_wrap.h"	293	#include "ev_wrap.h"
		294
		295	static struct ev_loop default_loop_struct;
		296	struct ev_loop *ev_default_loop_ptr;
166		297
167	#else	298	#else
168		299
		300	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	302	#include "ev_vars.h"
171	# undef VAR	303	#undef VAR
		304
		305	static int ev_default_loop_ptr;
172		306
173	#endif	307	#endif
174		308
175	/*****************************************************************************/	309	/*****************************************************************************/
176		310
177	inline ev_tstamp	311	ev_tstamp
178	ev_time (void)	312	ev_time (void)
179	{	313	{
180	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
181	struct timespec ts;	315	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	335	#endif
202		336
203	return ev_time ();	337	return ev_time ();
204	}	338	}
205		339
		340	#if EV_MULTIPLICITY
206	ev_tstamp	341	ev_tstamp
207	ev_now (EV_P)	342	ev_now (EV_P)
208	{	343	{
209	return rt_now;	344	return ev_rt_now;
210	}	345	}
		346	#endif
211		347
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
213		349
214	#define array_needsize(base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
216	{ \	352	{ \
217	int newcnt = cur; \	353	int newcnt = cur; \
218	do \	354	do \
219	{ \	355	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	356	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	357	} \
222	while ((cnt) > newcnt); \	358	while ((cnt) > newcnt); \
223	\	359	\
224	base = realloc (base, sizeof (base) (newcnt)); \	360	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	361	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	362	cur = newcnt; \
227	}	363	}
		364
		365	#define array_slim(type,stem) \
		366	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		367	{ \
		368	stem ## max = array_roundsize (stem ## cnt >> 1); \
		369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		371	}
		372
		373	#define array_free(stem, idx) \
		374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		375
229	/*****************************************************************************/	376	/*****************************************************************************/
230		377
231	static void	378	static void
232	anfds_init (ANFD *base, int count)	379	anfds_init (ANFD *base, int count)
…		…
239		386
240	++base;	387	++base;
241	}	388	}
242	}	389	}
243		390
244	static void	391	void
245	event (EV_P_ W w, int events)	392	ev_feed_event (EV_P_ void *w, int revents)
246	{	393	{
247	if (w->pending)	394	W w_ = (W)w;
		395
		396	if (expect_false (w_->pending))
248	{	397	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	399	return;
251	}	400	}
252		401
253	w->pending = ++pendingcnt [ABSPRI (w)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	406	}
258		407
259	static void	408	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	409	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	410	{
262	int i;	411	int i;
263		412
264	for (i = 0; i < eventcnt; ++i)	413	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	414	ev_feed_event (EV_A_ events [i], type);
266	}	415	}
267		416
268	static void	417	inline void
269	fd_event (EV_P_ int fd, int events)	418	fd_event (EV_P_ int fd, int revents)
270	{	419	{
271	ANFD *anfd = anfds + fd;	420	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	421	struct ev_io *w;
273		422
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	423	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	424	{
276	int ev = w->events & events;	425	int ev = w->events & revents;
277		426
278	if (ev)	427	if (ev)
279	event (EV_A_ (W)w, ev);	428	ev_feed_event (EV_A_ (W)w, ev);
280	}	429	}
		430	}
		431
		432	void
		433	ev_feed_fd_event (EV_P_ int fd, int revents)
		434	{
		435	fd_event (EV_A_ fd, revents);
281	}	436	}
282		437
283	/*****************************************************************************/	438	/*****************************************************************************/
284		439
285	static void	440	inline void
286	fd_reify (EV_P)	441	fd_reify (EV_P)
287	{	442	{
288	int i;	443	int i;
289		444
290	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
…		…
296	int events = 0;	451	int events = 0;
297		452
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	453	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	454	events \|= w->events;
300		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
301	anfd->reify = 0;	465	anfd->reify = 0;
302		466
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	468	anfd->events = events;
307	}
308	}	469	}
309		470
310	fdchangecnt = 0;	471	fdchangecnt = 0;
311	}	472	}
312		473
313	static void	474	static void
314	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
315	{	476	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	477	if (expect_false (anfds [fd].reify))
317	return;	478	return;
318		479
319	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
320		481
321	++fdchangecnt;	482	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
323	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
324	}	485	}
325		486
326	static void	487	static void
327	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	490	struct ev_io *w;
330		491
331	while ((w = (struct ev_io *)anfds [fd].head))	492	while ((w = (struct ev_io *)anfds [fd].head))
332	{	493	{
333	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	496	}
		497	}
		498
		499	inline int
		500	fd_valid (int fd)
		501	{
		502	#ifdef _WIN32
		503	return _get_osfhandle (fd) != -1;
		504	#else
		505	return fcntl (fd, F_GETFD) != -1;
		506	#endif
336	}	507	}
337		508
338	/* called on EBADF to verify fds */	509	/* called on EBADF to verify fds */
339	static void	510	static void
340	fd_ebadf (EV_P)	511	fd_ebadf (EV_P)
341	{	512	{
342	int fd;	513	int fd;
343		514
344	for (fd = 0; fd < anfdmax; ++fd)	515	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	516	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	517	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	518	fd_kill (EV_A_ fd);
348	}	519	}
349		520
350	/* called on ENOMEM in select/poll to kill some fds and retry */	521	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	522	static void
352	fd_enomem (EV_P)	523	fd_enomem (EV_P)
353	{	524	{
354	int fd = anfdmax;	525	int fd;
355		526
356	while (fd--)	527	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	528	if (anfds [fd].events)
358	{	529	{
359	close (fd);
360	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
361	return;	531	return;
362	}	532	}
363	}	533	}
364		534
365	/* susually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
366	static void	536	static void
367	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
368	{	538	{
369	int fd;	539	int fd;
370		540
…		…
385	WT w = heap [k];	555	WT w = heap [k];
386		556
387	while (k && heap [k >> 1]->at > w->at)	557	while (k && heap [k >> 1]->at > w->at)
388	{	558	{
389	heap [k] = heap [k >> 1];	559	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
391	k >>= 1;	561	k >>= 1;
392	}	562	}
393		563
394	heap [k] = w;	564	heap [k] = w;
395	heap [k]->active = k + 1;	565	((W)heap [k])->active = k + 1;
396		566
397	}	567	}
398		568
399	static void	569	static void
400	downheap (WT *heap, int N, int k)	570	downheap (WT *heap, int N, int k)
…		…
410		580
411	if (w->at <= heap [j]->at)	581	if (w->at <= heap [j]->at)
412	break;	582	break;
413		583
414	heap [k] = heap [j];	584	heap [k] = heap [j];
415	heap [k]->active = k + 1;	585	((W)heap [k])->active = k + 1;
416	k = j;	586	k = j;
417	}	587	}
418		588
419	heap [k] = w;	589	heap [k] = w;
420	heap [k]->active = k + 1;	590	((W)heap [k])->active = k + 1;
		591	}
		592
		593	inline void
		594	adjustheap (WT *heap, int N, int k)
		595	{
		596	upheap (heap, k);
		597	downheap (heap, N, k);
421	}	598	}
422		599
423	/*****************************************************************************/	600	/*****************************************************************************/
424		601
425	typedef struct	602	typedef struct
426	{	603	{
427	struct ev_watcher_list *head;	604	WL head;
428	sig_atomic_t volatile gotsig;	605	sig_atomic_t volatile gotsig;
429	} ANSIG;	606	} ANSIG;
430		607
431	static ANSIG *signals;	608	static ANSIG *signals;
432	static int signalmax;	609	static int signalmax;
…		…
448	}	625	}
449		626
450	static void	627	static void
451	sighandler (int signum)	628	sighandler (int signum)
452	{	629	{
		630	#if _WIN32
		631	signal (signum, sighandler);
		632	#endif
		633
453	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
454		635
455	if (!gotsig)	636	if (!gotsig)
456	{	637	{
457	int old_errno = errno;	638	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	641	errno = old_errno;
461	}	642	}
462	}	643	}
463		644
		645	void
		646	ev_feed_signal_event (EV_P_ int signum)
		647	{
		648	WL w;
		649
		650	#if EV_MULTIPLICITY
		651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		652	#endif
		653
		654	--signum;
		655
		656	if (signum < 0 \|\| signum >= signalmax)
		657	return;
		658
		659	signals [signum].gotsig = 0;
		660
		661	for (w = signals [signum].head; w; w = w->next)
		662	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		663	}
		664
464	static void	665	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	666	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	667	{
467	struct ev_watcher_list *w;
468	int signum;	668	int signum;
469		669
470	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	671	gotsig = 0;
472		672
473	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
475	{	675	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	676	}
477		677
478	for (w = signals [signum].head; w; w = w->next)	678	static void
479	event (EV_A_ (W)w, EV_SIGNAL);	679	fd_intern (int fd)
480	}	680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
481	}	688	}
482		689
483	static void	690	static void
484	siginit (EV_P)	691	siginit (EV_P)
485	{	692	{
486	#ifndef WIN32	693	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	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		695
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	699	}
499		700
500	/*****************************************************************************/	701	/*****************************************************************************/
501		702
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	703	static struct ev_child *childs [PID_HASHSIZE];
		704
		705	#ifndef _WIN32
		706
505	static struct ev_signal childev;	707	static struct ev_signal childev;
506		708
507	#ifndef WCONTINUED	709	#ifndef WCONTINUED
508	# define WCONTINUED 0	710	# define WCONTINUED 0
509	#endif	711	#endif
…		…
514	struct ev_child *w;	716	struct ev_child *w;
515		717
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	718	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)	719	if (w->pid == pid \|\| !w->pid)
518	{	720	{
519	w->priority = sw->priority; /* need to do it now */	721	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	722	w->rpid = pid;
521	w->rstatus = status;	723	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	725	}
524	}	726	}
525		727
526	static void	728	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	729	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	731	int pid, status;
530		732
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	734	{
533	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
534	event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		738
536	child_reap (EV_A_ sw, pid, pid, status);	739	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 */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
538	}	741	}
539	}	742	}
540		743
541	#endif	744	#endif
542		745
543	/*****************************************************************************/	746	/*****************************************************************************/
544		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
545	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
546	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
547	#endif	753	#endif
548	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
549	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
569		775
570	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	777	static int
572	enable_secure (void)	778	enable_secure (void)
573	{	779	{
574	#ifdef WIN32	780	#ifdef _WIN32
575	return 0;	781	return 0;
576	#else	782	#else
577	return getuid () != geteuid ()	783	return getuid () != geteuid ()
578	\|\| getgid () != getegid ();	784	\|\| getgid () != getegid ();
579	#endif	785	#endif
580	}	786	}
581		787
582	int	788	unsigned int
583	ev_method (EV_P)	789	ev_supported_backends (void)
584	{	790	{
585	return method;	791	unsigned int flags = 0;
586	}
587		792
588	static void	793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
589	loop_init (EV_P_ int methods)	794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_recommended_backends (void)
590	{	804	{
591	if (!method)	805	unsigned int flags = ev_supported_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
		820	unsigned int
		821	ev_backend (EV_P)
		822	{
		823	return backend;
		824	}
		825
		826	static void
		827	loop_init (EV_P_ unsigned int flags)
		828	{
		829	if (!backend)
592	{	830	{
593	#if EV_USE_MONOTONIC	831	#if EV_USE_MONOTONIC
594	{	832	{
595	struct timespec ts;	833	struct timespec ts;
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	834	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	835	have_monotonic = 1;
598	}	836	}
599	#endif	837	#endif
600		838
601	rt_now = ev_time ();	839	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	840	mn_now = get_clock ();
603	now_floor = mn_now;	841	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	842	rtmn_diff = ev_rt_now - mn_now;
605		843
606	if (methods == EVMETHOD_AUTO)	844	if (!(flags & EVFLAG_NOENV)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	845	&& !enable_secure ()
		846	&& getenv ("LIBEV_FLAGS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	847	flags = atoi (getenv ("LIBEV_FLAGS"));
609	else
610	methods = EVMETHOD_ANY;
611		848
612	method = 0;	849	if (!(flags & 0x0000ffffUL))
		850	flags \|= ev_recommended_backends ();
		851
		852	backend = 0;
		853	#if EV_USE_PORT
		854	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
		855	#endif
613	#if EV_USE_KQUEUE	856	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	857	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
615	#endif	858	#endif
616	#if EV_USE_EPOLL	859	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	860	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
618	#endif	861	#endif
619	#if EV_USE_POLL	862	#if EV_USE_POLL
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	863	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
621	#endif	864	#endif
622	#if EV_USE_SELECT	865	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	866	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
624	#endif	867	#endif
625	}
626	}
627		868
628	void	869	ev_init (&sigev, sigcb);
		870	ev_set_priority (&sigev, EV_MAXPRI);
		871	}
		872	}
		873
		874	static void
629	loop_destroy (EV_P)	875	loop_destroy (EV_P)
630	{	876	{
		877	int i;
		878
		879	#if EV_USE_PORT
		880	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
		881	#endif
631	#if EV_USE_KQUEUE	882	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	883	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
633	#endif	884	#endif
634	#if EV_USE_EPOLL	885	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	886	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
636	#endif	887	#endif
637	#if EV_USE_POLL	888	#if EV_USE_POLL
638	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	889	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
639	#endif	890	#endif
640	#if EV_USE_SELECT	891	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	892	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
642	#endif	893	#endif
643		894
644	method = 0;	895	for (i = NUMPRI; i--; )
645	/TODO/	896	array_free (pending, [i]);
646	}
647		897
648	void	898	/* have to use the microsoft-never-gets-it-right macro */
		899	array_free (fdchange, EMPTY0);
		900	array_free (timer, EMPTY0);
		901	#if EV_PERIODICS
		902	array_free (periodic, EMPTY0);
		903	#endif
		904	array_free (idle, EMPTY0);
		905	array_free (prepare, EMPTY0);
		906	array_free (check, EMPTY0);
		907
		908	backend = 0;
		909	}
		910
		911	static void
649	loop_fork (EV_P)	912	loop_fork (EV_P)
650	{	913	{
651	/TODO/	914	#if EV_USE_PORT
		915	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		916	#endif
		917	#if EV_USE_KQUEUE
		918	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		919	#endif
652	#if EV_USE_EPOLL	920	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	921	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
654	#endif	922	#endif
655	#if EV_USE_KQUEUE	923
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	924	if (ev_is_active (&sigev))
657	#endif	925	{
		926	/* default loop */
		927
		928	ev_ref (EV_A);
		929	ev_io_stop (EV_A_ &sigev);
		930	close (sigpipe [0]);
		931	close (sigpipe [1]);
		932
		933	while (pipe (sigpipe))
		934	syserr ("(libev) error creating pipe");
		935
		936	siginit (EV_A);
		937	}
		938
		939	postfork = 0;
658	}	940	}
659		941
660	#if EV_MULTIPLICITY	942	#if EV_MULTIPLICITY
661	struct ev_loop *	943	struct ev_loop *
662	ev_loop_new (int methods)	944	ev_loop_new (unsigned int flags)
663	{	945	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	946	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
665		947
		948	memset (loop, 0, sizeof (struct ev_loop));
		949
666	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
667		951
668	if (ev_method (EV_A))	952	if (ev_backend (EV_A))
669	return loop;	953	return loop;
670		954
671	return 0;	955	return 0;
672	}	956	}
673		957
674	void	958	void
675	ev_loop_destroy (EV_P)	959	ev_loop_destroy (EV_P)
676	{	960	{
677	loop_destroy (EV_A);	961	loop_destroy (EV_A);
678	free (loop);	962	ev_free (loop);
679	}	963	}
680		964
681	void	965	void
682	ev_loop_fork (EV_P)	966	ev_loop_fork (EV_P)
683	{	967	{
684	loop_fork (EV_A);	968	postfork = 1;
685	}	969	}
686		970
687	#endif	971	#endif
688		972
689	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	974	struct ev_loop *
		975	ev_default_loop_init (unsigned int flags)
694	#else	976	#else
695	static int default_loop;
696
697	int	977	int
		978	ev_default_loop (unsigned int flags)
698	#endif	979	#endif
699	ev_default_loop (int methods)
700	{	980	{
701	if (sigpipe [0] == sigpipe [1])	981	if (sigpipe [0] == sigpipe [1])
702	if (pipe (sigpipe))	982	if (pipe (sigpipe))
703	return 0;	983	return 0;
704		984
705	if (!default_loop)	985	if (!ev_default_loop_ptr)
706	{	986	{
707	#if EV_MULTIPLICITY	987	#if EV_MULTIPLICITY
708	struct ev_loop *loop = default_loop = &default_loop_struct;	988	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
709	#else	989	#else
710	default_loop = 1;	990	ev_default_loop_ptr = 1;
711	#endif	991	#endif
712		992
713	loop_init (EV_A_ methods);	993	loop_init (EV_A_ flags);
714		994
715	if (ev_method (EV_A))	995	if (ev_backend (EV_A))
716	{	996	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	997	siginit (EV_A);
720		998
721	#ifndef WIN32	999	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	1000	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	1001	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	1002	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	1003	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	1004	#endif
727	}	1005	}
728	else	1006	else
729	default_loop = 0;	1007	ev_default_loop_ptr = 0;
730	}	1008	}
731		1009
732	return default_loop;	1010	return ev_default_loop_ptr;
733	}	1011	}
734		1012
735	void	1013	void
736	ev_default_destroy (void)	1014	ev_default_destroy (void)
737	{	1015	{
738	#if EV_MULTIPLICITY	1016	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	1017	struct ev_loop *loop = ev_default_loop_ptr;
740	#endif	1018	#endif
741		1019
		1020	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	1021	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	1022	ev_signal_stop (EV_A_ &childev);
		1023	#endif
744		1024
745	ev_ref (EV_A); /* signal watcher */	1025	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	1026	ev_io_stop (EV_A_ &sigev);
747		1027
748	close (sigpipe [0]); sigpipe [0] = 0;	1028	close (sigpipe [0]); sigpipe [0] = 0;
…		…
753		1033
754	void	1034	void
755	ev_default_fork (void)	1035	ev_default_fork (void)
756	{	1036	{
757	#if EV_MULTIPLICITY	1037	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	1038	struct ev_loop *loop = ev_default_loop_ptr;
759	#endif	1039	#endif
760		1040
761	loop_fork (EV_A);	1041	if (backend)
762		1042	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	}	1043	}
771		1044
772	/*****************************************************************************/	1045	/*****************************************************************************/
773		1046
774	static void	1047	static int
		1048	any_pending (EV_P)
		1049	{
		1050	int pri;
		1051
		1052	for (pri = NUMPRI; pri--; )
		1053	if (pendingcnt [pri])
		1054	return 1;
		1055
		1056	return 0;
		1057	}
		1058
		1059	inline void
775	call_pending (EV_P)	1060	call_pending (EV_P)
776	{	1061	{
777	int pri;	1062	int pri;
778		1063
779	for (pri = NUMPRI; pri--; )	1064	for (pri = NUMPRI; pri--; )
780	while (pendingcnt [pri])	1065	while (pendingcnt [pri])
781	{	1066	{
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1067	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		1068
784	if (p->w)	1069	if (expect_true (p->w))
785	{	1070	{
786	p->w->pending = 0;	1071	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	1072	EV_CB_INVOKE (p->w, p->events);
788	}	1073	}
789	}	1074	}
790	}	1075	}
791		1076
792	static void	1077	inline void
793	timers_reify (EV_P)	1078	timers_reify (EV_P)
794	{	1079	{
795	while (timercnt && timers [0]->at <= mn_now)	1080	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	1081	{
797	struct ev_timer *w = timers [0];	1082	struct ev_timer *w = timers [0];
798		1083
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1084	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		1085
801	/* first reschedule or stop timer */	1086	/* first reschedule or stop timer */
802	if (w->repeat)	1087	if (w->repeat)
803	{	1088	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1089	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1090
805	w->at = mn_now + w->repeat;	1091	((WT)w)->at += w->repeat;
		1092	if (((WT)w)->at < mn_now)
		1093	((WT)w)->at = mn_now;
		1094
806	downheap ((WT *)timers, timercnt, 0);	1095	downheap ((WT *)timers, timercnt, 0);
807	}	1096	}
808	else	1097	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1098	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1099
811	event (EV_A_ (W)w, EV_TIMEOUT);	1100	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1101	}
813	}	1102	}
814		1103
815	static void	1104	#if EV_PERIODICS
		1105	inline void
816	periodics_reify (EV_P)	1106	periodics_reify (EV_P)
817	{	1107	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1108	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1109	{
820	struct ev_periodic *w = periodics [0];	1110	struct ev_periodic *w = periodics [0];
821		1111
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1112	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1113
824	/* first reschedule or stop timer */	1114	/* first reschedule or stop timer */
825	if (w->interval)	1115	if (w->reschedule_cb)
826	{	1116	{
		1117	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1118	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1119	downheap ((WT *)periodics, periodiccnt, 0);
		1120	}
		1121	else if (w->interval)
		1122	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1123	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
828	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1124	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
829	downheap ((WT *)periodics, periodiccnt, 0);	1125	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1126	}
831	else	1127	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1128	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1129
834	event (EV_A_ (W)w, EV_PERIODIC);	1130	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1131	}
836	}	1132	}
837		1133
838	static void	1134	static void
839	periodics_reschedule (EV_P)	1135	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1139	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1140	for (i = 0; i < periodiccnt; ++i)
845	{	1141	{
846	struct ev_periodic *w = periodics [i];	1142	struct ev_periodic *w = periodics [i];
847		1143
		1144	if (w->reschedule_cb)
		1145	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1146	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1147	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
851
852	if (fabs (diff) >= 1e-4)
853	{
854	ev_periodic_stop (EV_A_ w);
855	ev_periodic_start (EV_A_ w);
856
857	i = 0; /* restart loop, inefficient, but time jumps should be rare */
858	}
859	}
860	}	1148	}
		1149
		1150	/* now rebuild the heap */
		1151	for (i = periodiccnt >> 1; i--; )
		1152	downheap ((WT *)periodics, periodiccnt, i);
861	}	1153	}
		1154	#endif
862		1155
863	inline int	1156	inline int
864	time_update_monotonic (EV_P)	1157	time_update_monotonic (EV_P)
865	{	1158	{
866	mn_now = get_clock ();	1159	mn_now = get_clock ();
867		1160
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1161	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1162	{
870	rt_now = rtmn_diff + mn_now;	1163	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1164	return 0;
872	}	1165	}
873	else	1166	else
874	{	1167	{
875	now_floor = mn_now;	1168	now_floor = mn_now;
876	rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
877	return 1;	1170	return 1;
878	}	1171	}
879	}	1172	}
880		1173
881	static void	1174	inline void
882	time_update (EV_P)	1175	time_update (EV_P)
883	{	1176	{
884	int i;	1177	int i;
885		1178
886	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
…		…
890	{	1183	{
891	ev_tstamp odiff = rtmn_diff;	1184	ev_tstamp odiff = rtmn_diff;
892		1185
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1186	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1187	{
895	rtmn_diff = rt_now - mn_now;	1188	rtmn_diff = ev_rt_now - mn_now;
896		1189
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1190	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1191	return; /* all is well */
899		1192
900	rt_now = ev_time ();	1193	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1194	mn_now = get_clock ();
902	now_floor = mn_now;	1195	now_floor = mn_now;
903	}	1196	}
904		1197
		1198	# if EV_PERIODICS
905	periodics_reschedule (EV_A);	1199	periodics_reschedule (EV_A);
		1200	# endif
906	/* no timer adjustment, as the monotonic clock doesn't jump */	1201	/* no timer adjustment, as the monotonic clock doesn't jump */
907	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1202	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
908	}	1203	}
909	}	1204	}
910	else	1205	else
911	#endif	1206	#endif
912	{	1207	{
913	rt_now = ev_time ();	1208	ev_rt_now = ev_time ();
914		1209
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1210	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1211	{
		1212	#if EV_PERIODICS
917	periodics_reschedule (EV_A);	1213	periodics_reschedule (EV_A);
		1214	#endif
918		1215
919	/* adjust timers. this is easy, as the offset is the same for all */	1216	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1217	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1218	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1219	}
923		1220
924	mn_now = rt_now;	1221	mn_now = ev_rt_now;
925	}	1222	}
926	}	1223	}
927		1224
928	void	1225	void
929	ev_ref (EV_P)	1226	ev_ref (EV_P)
…		…
943	ev_loop (EV_P_ int flags)	1240	ev_loop (EV_P_ int flags)
944	{	1241	{
945	double block;	1242	double block;
946	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1243	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
947		1244
948	do	1245	while (activecnt)
949	{	1246	{
950	/* queue check watchers (and execute them) */	1247	/* queue check watchers (and execute them) */
951	if (expect_false (preparecnt))	1248	if (expect_false (preparecnt))
952	{	1249	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1250	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1251	call_pending (EV_A);
955	}	1252	}
956		1253
		1254	/* we might have forked, so reify kernel state if necessary */
		1255	if (expect_false (postfork))
		1256	loop_fork (EV_A);
		1257
957	/* update fd-related kernel structures */	1258	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1259	fd_reify (EV_A);
959		1260
960	/* calculate blocking time */	1261	/* calculate blocking time */
961		1262
962	/* we only need this for !monotonic clockor timers, but as we basically	1263	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1264	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1265	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1266	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1267	time_update_monotonic (EV_A);
967	else	1268	else
968	#endif	1269	#endif
969	{	1270	{
970	rt_now = ev_time ();	1271	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1272	mn_now = ev_rt_now;
972	}	1273	}
973		1274
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1275	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1276	block = 0.;
976	else	1277	else
977	{	1278	{
978	block = MAX_BLOCKTIME;	1279	block = MAX_BLOCKTIME;
979		1280
980	if (timercnt)	1281	if (timercnt)
981	{	1282	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1283	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
983	if (block > to) block = to;	1284	if (block > to) block = to;
984	}	1285	}
985		1286
		1287	#if EV_PERIODICS
986	if (periodiccnt)	1288	if (periodiccnt)
987	{	1289	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1290	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
989	if (block > to) block = to;	1291	if (block > to) block = to;
990	}	1292	}
		1293	#endif
991		1294
992	if (block < 0.) block = 0.;	1295	if (expect_false (block < 0.)) block = 0.;
993	}	1296	}
994		1297
995	method_poll (EV_A_ block);	1298	backend_poll (EV_A_ block);
996		1299
997	/* update rt_now, do magic */	1300	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1301	time_update (EV_A);
999		1302
1000	/* queue pending timers and reschedule them */	1303	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1304	timers_reify (EV_A); /* relative timers called last */
		1305	#if EV_PERIODICS
1002	periodics_reify (EV_A); /* absolute timers called first */	1306	periodics_reify (EV_A); /* absolute timers called first */
		1307	#endif
1003		1308
1004	/* queue idle watchers unless io or timers are pending */	1309	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1310	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1311	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1312
1008	/* queue check watchers, to be executed first */	1313	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1314	if (expect_false (checkcnt))
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1315	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1011		1316
1012	call_pending (EV_A);	1317	call_pending (EV_A);
		1318
		1319	if (expect_false (loop_done))
		1320	break;
1013	}	1321	}
1014	while (activecnt && !loop_done);
1015		1322
1016	if (loop_done != 2)	1323	if (loop_done != 2)
1017	loop_done = 0;	1324	loop_done = 0;
1018	}	1325	}
1019		1326
…		…
1079	void	1386	void
1080	ev_io_start (EV_P_ struct ev_io *w)	1387	ev_io_start (EV_P_ struct ev_io *w)
1081	{	1388	{
1082	int fd = w->fd;	1389	int fd = w->fd;
1083		1390
1084	if (ev_is_active (w))	1391	if (expect_false (ev_is_active (w)))
1085	return;	1392	return;
1086		1393
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1394	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1395
1089	ev_start (EV_A_ (W)w, 1);	1396	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1397	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1398	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1399
1093	fd_change (EV_A_ fd);	1400	fd_change (EV_A_ fd);
1094	}	1401	}
1095		1402
1096	void	1403	void
1097	ev_io_stop (EV_P_ struct ev_io *w)	1404	ev_io_stop (EV_P_ struct ev_io *w)
1098	{	1405	{
1099	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1101	return;	1408	return;
		1409
		1410	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1102		1411
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1412	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1413	ev_stop (EV_A_ (W)w);
1105		1414
1106	fd_change (EV_A_ w->fd);	1415	fd_change (EV_A_ w->fd);
1107	}	1416	}
1108		1417
1109	void	1418	void
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1419	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1420	{
1112	if (ev_is_active (w))	1421	if (expect_false (ev_is_active (w)))
1113	return;	1422	return;
1114		1423
1115	w->at += mn_now;	1424	((WT)w)->at += mn_now;
1116		1425
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1426	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1427
1119	ev_start (EV_A_ (W)w, ++timercnt);	1428	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1429	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1121	timers [timercnt - 1] = w;	1430	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1431	upheap ((WT *)timers, timercnt - 1);
		1432
		1433	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1434	}
1124		1435
1125	void	1436	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1437	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1438	{
1128	ev_clear_pending (EV_A_ (W)w);	1439	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1440	if (expect_false (!ev_is_active (w)))
1130	return;	1441	return;
1131		1442
		1443	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1444
1132	if (w->active < timercnt--)	1445	if (expect_true (((W)w)->active < timercnt--))
1133	{	1446	{
1134	timers [w->active - 1] = timers [timercnt];	1447	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1448	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1449	}
1137		1450
1138	w->at = w->repeat;	1451	((WT)w)->at -= mn_now;
1139		1452
1140	ev_stop (EV_A_ (W)w);	1453	ev_stop (EV_A_ (W)w);
1141	}	1454	}
1142		1455
1143	void	1456	void
…		…
1145	{	1458	{
1146	if (ev_is_active (w))	1459	if (ev_is_active (w))
1147	{	1460	{
1148	if (w->repeat)	1461	if (w->repeat)
1149	{	1462	{
1150	w->at = mn_now + w->repeat;	1463	((WT)w)->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1464	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1465	}
1153	else	1466	else
1154	ev_timer_stop (EV_A_ w);	1467	ev_timer_stop (EV_A_ w);
1155	}	1468	}
1156	else if (w->repeat)	1469	else if (w->repeat)
		1470	{
		1471	w->at = w->repeat;
1157	ev_timer_start (EV_A_ w);	1472	ev_timer_start (EV_A_ w);
		1473	}
1158	}	1474	}
1159		1475
		1476	#if EV_PERIODICS
1160	void	1477	void
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1478	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1479	{
1163	if (ev_is_active (w))	1480	if (expect_false (ev_is_active (w)))
1164	return;	1481	return;
1165		1482
		1483	if (w->reschedule_cb)
		1484	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1485	else if (w->interval)
		1486	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1487	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1167
1168	/* this formula differs from the one in periodic_reify because we do not always round up */	1488	/* this formula differs from the one in periodic_reify because we do not always round up */
1169	if (w->interval)
1170	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1489	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1490	}
1171		1491
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1492	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1493	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1174	periodics [periodiccnt - 1] = w;	1494	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1495	upheap ((WT *)periodics, periodiccnt - 1);
		1496
		1497	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1498	}
1177		1499
1178	void	1500	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1501	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1502	{
1181	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1183	return;	1505	return;
1184		1506
		1507	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1508
1185	if (w->active < periodiccnt--)	1509	if (expect_true (((W)w)->active < periodiccnt--))
1186	{	1510	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1511	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1512	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1513	}
1190		1514
1191	ev_stop (EV_A_ (W)w);	1515	ev_stop (EV_A_ (W)w);
1192	}	1516	}
1193		1517
1194	void	1518	void
		1519	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1520	{
		1521	/* TODO: use adjustheap and recalculation */
		1522	ev_periodic_stop (EV_A_ w);
		1523	ev_periodic_start (EV_A_ w);
		1524	}
		1525	#endif
		1526
		1527	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1528	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1529	{
1197	if (ev_is_active (w))	1530	if (expect_false (ev_is_active (w)))
1198	return;	1531	return;
1199		1532
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1533	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1534	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1202	idles [idlecnt - 1] = w;	1535	idles [idlecnt - 1] = w;
1203	}	1536	}
1204		1537
1205	void	1538	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1539	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1540	{
1208	ev_clear_pending (EV_A_ (W)w);	1541	ev_clear_pending (EV_A_ (W)w);
1209	if (ev_is_active (w))	1542	if (expect_false (!ev_is_active (w)))
1210	return;	1543	return;
1211		1544
1212	idles [w->active - 1] = idles [--idlecnt];	1545	idles [((W)w)->active - 1] = idles [--idlecnt];
1213	ev_stop (EV_A_ (W)w);	1546	ev_stop (EV_A_ (W)w);
1214	}	1547	}
1215		1548
1216	void	1549	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1550	ev_prepare_start (EV_P_ struct ev_prepare *w)
1218	{	1551	{
1219	if (ev_is_active (w))	1552	if (expect_false (ev_is_active (w)))
1220	return;	1553	return;
1221		1554
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1555	ev_start (EV_A_ (W)w, ++preparecnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1556	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1224	prepares [preparecnt - 1] = w;	1557	prepares [preparecnt - 1] = w;
1225	}	1558	}
1226		1559
1227	void	1560	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1561	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1229	{	1562	{
1230	ev_clear_pending (EV_A_ (W)w);	1563	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1564	if (expect_false (!ev_is_active (w)))
1232	return;	1565	return;
1233		1566
1234	prepares [w->active - 1] = prepares [--preparecnt];	1567	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);	1568	ev_stop (EV_A_ (W)w);
1236	}	1569	}
1237		1570
1238	void	1571	void
1239	ev_check_start (EV_P_ struct ev_check *w)	1572	ev_check_start (EV_P_ struct ev_check *w)
1240	{	1573	{
1241	if (ev_is_active (w))	1574	if (expect_false (ev_is_active (w)))
1242	return;	1575	return;
1243		1576
1244	ev_start (EV_A_ (W)w, ++checkcnt);	1577	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );	1578	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1246	checks [checkcnt - 1] = w;	1579	checks [checkcnt - 1] = w;
1247	}	1580	}
1248		1581
1249	void	1582	void
1250	ev_check_stop (EV_P_ struct ev_check *w)	1583	ev_check_stop (EV_P_ struct ev_check *w)
1251	{	1584	{
1252	ev_clear_pending (EV_A_ (W)w);	1585	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))	1586	if (expect_false (!ev_is_active (w)))
1254	return;	1587	return;
1255		1588
1256	checks [w->active - 1] = checks [--checkcnt];	1589	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1590	ev_stop (EV_A_ (W)w);
1258	}	1591	}
1259		1592
1260	#ifndef SA_RESTART	1593	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1594	# define SA_RESTART 0
…		…
1263		1596
1264	void	1597	void
1265	ev_signal_start (EV_P_ struct ev_signal *w)	1598	ev_signal_start (EV_P_ struct ev_signal *w)
1266	{	1599	{
1267	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1268	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1601	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1269	#endif	1602	#endif
1270	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1271	return;	1604	return;
1272		1605
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1606	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1607
1275	ev_start (EV_A_ (W)w, 1);	1608	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1609	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1610	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1611
1279	if (!w->next)	1612	if (!((WL)w)->next)
1280	{	1613	{
		1614	#if _WIN32
		1615	signal (w->signum, sighandler);
		1616	#else
1281	struct sigaction sa;	1617	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1618	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1619	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1620	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1621	sigaction (w->signum, &sa, 0);
		1622	#endif
1286	}	1623	}
1287	}	1624	}
1288		1625
1289	void	1626	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1627	ev_signal_stop (EV_P_ struct ev_signal *w)
1291	{	1628	{
1292	ev_clear_pending (EV_A_ (W)w);	1629	ev_clear_pending (EV_A_ (W)w);
1293	if (!ev_is_active (w))	1630	if (expect_false (!ev_is_active (w)))
1294	return;	1631	return;
1295		1632
1296	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1633	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1297	ev_stop (EV_A_ (W)w);	1634	ev_stop (EV_A_ (W)w);
1298		1635
…		…
1302		1639
1303	void	1640	void
1304	ev_child_start (EV_P_ struct ev_child *w)	1641	ev_child_start (EV_P_ struct ev_child *w)
1305	{	1642	{
1306	#if EV_MULTIPLICITY	1643	#if EV_MULTIPLICITY
1307	assert (("child watchers are only supported in the default loop", loop == default_loop));	1644	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1308	#endif	1645	#endif
1309	if (ev_is_active (w))	1646	if (expect_false (ev_is_active (w)))
1310	return;	1647	return;
1311		1648
1312	ev_start (EV_A_ (W)w, 1);	1649	ev_start (EV_A_ (W)w, 1);
1313	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1650	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1314	}	1651	}
1315		1652
1316	void	1653	void
1317	ev_child_stop (EV_P_ struct ev_child *w)	1654	ev_child_stop (EV_P_ struct ev_child *w)
1318	{	1655	{
1319	ev_clear_pending (EV_A_ (W)w);	1656	ev_clear_pending (EV_A_ (W)w);
1320	if (ev_is_active (w))	1657	if (expect_false (!ev_is_active (w)))
1321	return;	1658	return;
1322		1659
1323	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1660	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1324	ev_stop (EV_A_ (W)w);	1661	ev_stop (EV_A_ (W)w);
1325	}	1662	}
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1677	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1678	void *arg = once->arg;
1342		1679
1343	ev_io_stop (EV_A_ &once->io);	1680	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1681	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1682	ev_free (once);
1346		1683
1347	cb (revents, arg);	1684	cb (revents, arg);
1348	}	1685	}
1349		1686
1350	static void	1687	static void
…		…
1360	}	1697	}
1361		1698
1362	void	1699	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1700	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1701	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1702	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1703
1367	if (!once)	1704	if (expect_false (!once))
		1705	{
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1706	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1707	return;
1370	{	1708	}
		1709
1371	once->cb = cb;	1710	once->cb = cb;
1372	once->arg = arg;	1711	once->arg = arg;
1373		1712
1374	ev_watcher_init (&once->io, once_cb_io);	1713	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1714	if (fd >= 0)
1376	{	1715	{
1377	ev_io_set (&once->io, fd, events);	1716	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1717	ev_io_start (EV_A_ &once->io);
1379	}	1718	}
1380		1719
1381	ev_watcher_init (&once->to, once_cb_to);	1720	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1721	if (timeout >= 0.)
1383	{	1722	{
1384	ev_timer_set (&once->to, timeout, 0.);	1723	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1724	ev_timer_start (EV_A_ &once->to);
1386	}
1387	}	1725	}
1388	}	1726	}
1389		1727
		1728	#ifdef __cplusplus
		1729	}
		1730	#endif
		1731

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Comparing libev/ev.c (file contents): Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs. Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC