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

Comparing libev/ev.c (file contents):
Revision 1.65 by root, Sun Nov 4 23:29:48 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 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_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
107	#endif	155	#endif
108		156
109	/**/	157	/**/
110		158
111	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
119	#endif	167	#endif
120		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
121	/**/	173	/**/
122		174
123	#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) */
124	#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) */
125	#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 */
126	/#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 */
127		179
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
128	#include "ev.h"	183	# include "ev.h"
		184	#endif
129		185
130	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	188	# define inline static inline
133	#else	189	#else
134	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
135	# define inline static	191	# define inline static
136	#endif	192	#endif
137		193
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
140		196
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
144	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
147		206
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		208
		209	#ifdef _WIN32
		210	# include "ev_win32.c"
		211	#endif
		212
150	/*****************************************************************************/	213	/*****************************************************************************/
151		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
152	typedef struct	263	typedef struct
153	{	264	{
154	struct ev_watcher_list *head;	265	WL head;
155	unsigned char events;	266	unsigned char events;
156	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
157	} ANFD;	271	} ANFD;
158		272
159	typedef struct	273	typedef struct
160	{	274	{
161	W w;	275	W w;
162	int events;	276	int events;
163	} ANPENDING;	277	} ANPENDING;
164		278
165	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
166		280
167	struct ev_loop	281	struct ev_loop
168	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	286	#include "ev_vars.h"
171	};
172	# undef VAR	287	#undef VAR
		288	};
173	# 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;
174		293
175	#else	294	#else
176		295
		296	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	298	#include "ev_vars.h"
179	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
180		302
181	#endif	303	#endif
182		304
183	/*****************************************************************************/	305	/*****************************************************************************/
184		306
185	inline ev_tstamp	307	ev_tstamp
186	ev_time (void)	308	ev_time (void)
187	{	309	{
188	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
189	struct timespec ts;	311	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	331	#endif
210		332
211	return ev_time ();	333	return ev_time ();
212	}	334	}
213		335
		336	#if EV_MULTIPLICITY
214	ev_tstamp	337	ev_tstamp
215	ev_now (EV_P)	338	ev_now (EV_P)
216	{	339	{
217	return rt_now;	340	return ev_rt_now;
218	}	341	}
		342	#endif
219		343
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
221		345
222	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
224	{ \	348	{ \
225	int newcnt = cur; \	349	int newcnt = cur; \
226	do \	350	do \
227	{ \	351	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	353	} \
230	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
231	\	355	\
232	base = realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	358	cur = newcnt; \
		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/\
235	}	367	}
236		368
237	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
238	free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
239		371
240	/*****************************************************************************/	372	/*****************************************************************************/
241		373
242	static void	374	static void
243	anfds_init (ANFD *base, int count)	375	anfds_init (ANFD *base, int count)
…		…
250		382
251	++base;	383	++base;
252	}	384	}
253	}	385	}
254		386
255	static void	387	void
256	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
257	{	389	{
258	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
259	{	393	{
260	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
261	return;	395	return;
262	}	396	}
263		397
264	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
265	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);
266	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
267	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
268	}	402	}
269		403
270	static void	404	static void
271	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
272	{	406	{
273	int i;	407	int i;
274		408
275	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
276	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
277	}	411	}
278		412
279	static void	413	inline void
280	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
281	{	415	{
282	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
283	struct ev_io *w;	417	struct ev_io *w;
284		418
285	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)
286	{	420	{
287	int ev = w->events & events;	421	int ev = w->events & revents;
288		422
289	if (ev)	423	if (ev)
290	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
291	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
292	}	432	}
293		433
294	/*****************************************************************************/	434	/*****************************************************************************/
295		435
296	static void	436	inline void
297	fd_reify (EV_P)	437	fd_reify (EV_P)
298	{	438	{
299	int i;	439	int i;
300		440
301	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
307	int events = 0;	447	int events = 0;
308		448
309	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)
310	events \|= w->events;	450	events \|= w->events;
311		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
312	anfd->reify = 0;	461	anfd->reify = 0;
313		462
314	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
315	anfd->events = events;	464	anfd->events = events;
316	}	465	}
317		466
318	fdchangecnt = 0;	467	fdchangecnt = 0;
319	}	468	}
320		469
321	static void	470	static void
322	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
323	{	472	{
324	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
325	return;	474	return;
326		475
327	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
328		477
329	++fdchangecnt;	478	++fdchangecnt;
330	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
331	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
332	}	481	}
333		482
334	static void	483	static void
335	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
337	struct ev_io *w;	486	struct ev_io *w;
338		487
339	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
340	{	489	{
341	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
342	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);
343	}	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
344	}	503	}
345		504
346	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
347	static void	506	static void
348	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
349	{	508	{
350	int fd;	509	int fd;
351		510
352	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	512	if (anfds [fd].events)
354	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
355	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
356	}	515	}
357		516
358	/* 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 */
359	static void	518	static void
…		…
362	int fd;	521	int fd;
363		522
364	for (fd = anfdmax; fd--; )	523	for (fd = anfdmax; fd--; )
365	if (anfds [fd].events)	524	if (anfds [fd].events)
366	{	525	{
367	close (fd);
368	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
369	return;	527	return;
370	}	528	}
371	}	529	}
372		530
373	/* 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 */
374	static void	532	static void
375	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
376	{	534	{
377	int fd;	535	int fd;
378		536
…		…
426		584
427	heap [k] = w;	585	heap [k] = w;
428	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
429	}	587	}
430		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
		594	}
		595
431	/*****************************************************************************/	596	/*****************************************************************************/
432		597
433	typedef struct	598	typedef struct
434	{	599	{
435	struct ev_watcher_list *head;	600	WL head;
436	sig_atomic_t volatile gotsig;	601	sig_atomic_t volatile gotsig;
437	} ANSIG;	602	} ANSIG;
438		603
439	static ANSIG *signals;	604	static ANSIG *signals;
440	static int signalmax;	605	static int signalmax;
…		…
456	}	621	}
457		622
458	static void	623	static void
459	sighandler (int signum)	624	sighandler (int signum)
460	{	625	{
		626	#if _WIN32
		627	signal (signum, sighandler);
		628	#endif
		629
461	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
462		631
463	if (!gotsig)	632	if (!gotsig)
464	{	633	{
465	int old_errno = errno;	634	int old_errno = errno;
…		…
467	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
468	errno = old_errno;	637	errno = old_errno;
469	}	638	}
470	}	639	}
471		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
472	static void	661	static void
473	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
474	{	663	{
475	struct ev_watcher_list *w;
476	int signum;	664	int signum;
477		665
478	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
479	gotsig = 0;	667	gotsig = 0;
480		668
481	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
482	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
483	{	671	ev_feed_signal_event (EV_A_ signum + 1);
484	signals [signum].gotsig = 0;	672	}
485		673
486	for (w = signals [signum].head; w; w = w->next)	674	static void
487	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
488	}	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
489	}	684	}
490		685
491	static void	686	static void
492	siginit (EV_P)	687	siginit (EV_P)
493	{	688	{
494	#ifndef WIN32	689	fd_intern (sigpipe [0]);
495	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
496	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
497
498	/* rather than sort out wether we really need nb, set it */
499	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
500	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
501	#endif
502		691
503	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
504	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
505	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
506	}	695	}
507		696
508	/*****************************************************************************/	697	/*****************************************************************************/
509		698
510	#ifndef WIN32
511
512	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
		700
		701	#ifndef _WIN32
		702
513	static struct ev_signal childev;	703	static struct ev_signal childev;
514		704
515	#ifndef WCONTINUED	705	#ifndef WCONTINUED
516	# define WCONTINUED 0	706	# define WCONTINUED 0
517	#endif	707	#endif
…		…
525	if (w->pid == pid \|\| !w->pid)	715	if (w->pid == pid \|\| !w->pid)
526	{	716	{
527	ev_priority (w) = ev_priority (sw); /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
528	w->rpid = pid;	718	w->rpid = pid;
529	w->rstatus = status;	719	w->rstatus = status;
530	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
531	}	721	}
532	}	722	}
533		723
534	static void	724	static void
535	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
537	int pid, status;	727	int pid, status;
538		728
539	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
540	{	730	{
541	/* 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 */
542	event (EV_A_ (W)sw, EV_SIGNAL);	732	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
543		733
544	child_reap (EV_A_ sw, pid, pid, status);	734	child_reap (EV_A_ sw, pid, pid, status);
545	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	735	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
546	}	736	}
547	}	737	}
548		738
549	#endif	739	#endif
550		740
551	/*****************************************************************************/	741	/*****************************************************************************/
552		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
553	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
554	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
555	#endif	748	#endif
556	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
557	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
577		770
578	/* return true if we are running with elevated privileges and should ignore env variables */	771	/* return true if we are running with elevated privileges and should ignore env variables */
579	static int	772	static int
580	enable_secure (void)	773	enable_secure (void)
581	{	774	{
582	#ifdef WIN32	775	#ifdef _WIN32
583	return 0;	776	return 0;
584	#else	777	#else
585	return getuid () != geteuid ()	778	return getuid () != geteuid ()
586	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
587	#endif	780	#endif
588	}	781	}
589		782
590	int	783	unsigned int
591	ev_method (EV_P)	784	ev_supported_backends (void)
592	{	785	{
593	return method;	786	unsigned int flags = 0;
594	}
595		787
596	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
597	loop_init (EV_P_ int methods)	789	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		790	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		791	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		792	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		793
		794	return flags;
		795	}
		796
		797	unsigned int
		798	ev_recommended_backends (void)
598	{	799	{
599	if (!method)	800	unsigned int flags = ev_recommended_backends ();
		801
		802	#ifndef __NetBSD__
		803	/* kqueue is borked on everything but netbsd apparently */
		804	/* it usually doesn't work correctly on anything but sockets and pipes */
		805	flags &= ~EVBACKEND_KQUEUE;
		806	#endif
		807	#ifdef __APPLE__
		808	// flags &= ~EVBACKEND_KQUEUE; for documentation
		809	flags &= ~EVBACKEND_POLL;
		810	#endif
		811
		812	return flags;
		813	}
		814
		815	unsigned int
		816	ev_backend (EV_P)
		817	{
		818	return backend;
		819	}
		820
		821	static void
		822	loop_init (EV_P_ unsigned int flags)
		823	{
		824	if (!backend)
600	{	825	{
601	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
602	{	827	{
603	struct timespec ts;	828	struct timespec ts;
604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
605	have_monotonic = 1;	830	have_monotonic = 1;
606	}	831	}
607	#endif	832	#endif
608		833
609	rt_now = ev_time ();	834	ev_rt_now = ev_time ();
610	mn_now = get_clock ();	835	mn_now = get_clock ();
611	now_floor = mn_now;	836	now_floor = mn_now;
612	rtmn_diff = rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
613		838
614	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
615	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
616	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
617	else
618	methods = EVMETHOD_ANY;
619		843
620	method = 0;	844	if (!(flags & 0x0000ffffUL))
621	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
622	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	846
		847	backend = 0;
		848	#if EV_USE_PORT
		849	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
623	#endif	850	#endif
624	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
625	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
626	#endif	853	#endif
627	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
628	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
629	#endif	856	#endif
630	#if EV_USE_POLL	857	#if EV_USE_POLL
631	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
632	#endif	859	#endif
633	#if EV_USE_SELECT	860	#if EV_USE_SELECT
634	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
635	#endif	862	#endif
636	}
637	}
638		863
639	void	864	ev_init (&sigev, sigcb);
		865	ev_set_priority (&sigev, EV_MAXPRI);
		866	}
		867	}
		868
		869	static void
640	loop_destroy (EV_P)	870	loop_destroy (EV_P)
641	{	871	{
642	int i;	872	int i;
643		873
644	#if EV_USE_WIN32	874	#if EV_USE_PORT
645	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
646	#endif	876	#endif
647	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
648	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
649	#endif	879	#endif
650	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
651	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
652	#endif	882	#endif
653	#if EV_USE_POLL	883	#if EV_USE_POLL
654	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
655	#endif	885	#endif
656	#if EV_USE_SELECT	886	#if EV_USE_SELECT
657	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
658	#endif	888	#endif
659		889
660	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
661	array_free (pending, [i]);	891	array_free (pending, [i]);
662		892
		893	/* have to use the microsoft-never-gets-it-right macro */
663	array_free (fdchange, );	894	array_free (fdchange, EMPTY0);
664	array_free (timer, );	895	array_free (timer, EMPTY0);
		896	#if EV_PERIODICS
665	array_free (periodic, );	897	array_free (periodic, EMPTY0);
		898	#endif
666	array_free (idle, );	899	array_free (idle, EMPTY0);
667	array_free (prepare, );	900	array_free (prepare, EMPTY0);
668	array_free (check, );	901	array_free (check, EMPTY0);
669		902
670	method = 0;	903	backend = 0;
671	/TODO/
672	}	904	}
673		905
674	void	906	static void
675	loop_fork (EV_P)	907	loop_fork (EV_P)
676	{	908	{
677	/TODO/	909	#if EV_USE_PORT
		910	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		911	#endif
		912	#if EV_USE_KQUEUE
		913	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		914	#endif
678	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
679	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
680	#endif	917	#endif
681	#if EV_USE_KQUEUE	918
682	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	919	if (ev_is_active (&sigev))
683	#endif	920	{
		921	/* default loop */
		922
		923	ev_ref (EV_A);
		924	ev_io_stop (EV_A_ &sigev);
		925	close (sigpipe [0]);
		926	close (sigpipe [1]);
		927
		928	while (pipe (sigpipe))
		929	syserr ("(libev) error creating pipe");
		930
		931	siginit (EV_A);
		932	}
		933
		934	postfork = 0;
684	}	935	}
685		936
686	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
687	struct ev_loop *	938	struct ev_loop *
688	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
689	{	940	{
690	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	941	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
691		942
		943	memset (loop, 0, sizeof (struct ev_loop));
		944
692	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
693		946
694	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
695	return loop;	948	return loop;
696		949
697	return 0;	950	return 0;
698	}	951	}
699		952
700	void	953	void
701	ev_loop_destroy (EV_P)	954	ev_loop_destroy (EV_P)
702	{	955	{
703	loop_destroy (EV_A);	956	loop_destroy (EV_A);
704	free (loop);	957	ev_free (loop);
705	}	958	}
706		959
707	void	960	void
708	ev_loop_fork (EV_P)	961	ev_loop_fork (EV_P)
709	{	962	{
710	loop_fork (EV_A);	963	postfork = 1;
711	}	964	}
712		965
713	#endif	966	#endif
714		967
715	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
716	struct ev_loop default_loop_struct;
717	static struct ev_loop *default_loop;
718
719	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
720	#else	971	#else
721	static int default_loop;
722
723	int	972	int
		973	ev_default_loop (unsigned int flags)
724	#endif	974	#endif
725	ev_default_loop (int methods)
726	{	975	{
727	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
728	if (pipe (sigpipe))	977	if (pipe (sigpipe))
729	return 0;	978	return 0;
730		979
731	if (!default_loop)	980	if (!ev_default_loop_ptr)
732	{	981	{
733	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
734	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
735	#else	984	#else
736	default_loop = 1;	985	ev_default_loop_ptr = 1;
737	#endif	986	#endif
738		987
739	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
740		989
741	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
742	{	991	{
743	ev_watcher_init (&sigev, sigcb);
744	ev_set_priority (&sigev, EV_MAXPRI);
745	siginit (EV_A);	992	siginit (EV_A);
746		993
747	#ifndef WIN32	994	#ifndef _WIN32
748	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
749	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
750	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
752	#endif	999	#endif
753	}	1000	}
754	else	1001	else
755	default_loop = 0;	1002	ev_default_loop_ptr = 0;
756	}	1003	}
757		1004
758	return default_loop;	1005	return ev_default_loop_ptr;
759	}	1006	}
760		1007
761	void	1008	void
762	ev_default_destroy (void)	1009	ev_default_destroy (void)
763	{	1010	{
764	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
765	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
766	#endif	1013	#endif
767		1014
		1015	#ifndef _WIN32
768	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
769	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
		1018	#endif
770		1019
771	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
772	ev_io_stop (EV_A_ &sigev);	1021	ev_io_stop (EV_A_ &sigev);
773		1022
774	close (sigpipe [0]); sigpipe [0] = 0;	1023	close (sigpipe [0]); sigpipe [0] = 0;
…		…
779		1028
780	void	1029	void
781	ev_default_fork (void)	1030	ev_default_fork (void)
782	{	1031	{
783	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
784	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
785	#endif	1034	#endif
786		1035
787	loop_fork (EV_A);	1036	if (backend)
788		1037	postfork = 1;
789	ev_io_stop (EV_A_ &sigev);
790	close (sigpipe [0]);
791	close (sigpipe [1]);
792	pipe (sigpipe);
793
794	ev_ref (EV_A); /* signal watcher */
795	siginit (EV_A);
796	}	1038	}
797		1039
798	/*****************************************************************************/	1040	/*****************************************************************************/
799		1041
800	static void	1042	static int
		1043	any_pending (EV_P)
		1044	{
		1045	int pri;
		1046
		1047	for (pri = NUMPRI; pri--; )
		1048	if (pendingcnt [pri])
		1049	return 1;
		1050
		1051	return 0;
		1052	}
		1053
		1054	inline void
801	call_pending (EV_P)	1055	call_pending (EV_P)
802	{	1056	{
803	int pri;	1057	int pri;
804		1058
805	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
806	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
807	{	1061	{
808	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
809		1063
810	if (p->w)	1064	if (expect_true (p->w))
811	{	1065	{
812	p->w->pending = 0;	1066	p->w->pending = 0;
813		1067	EV_CB_INVOKE (p->w, p->events);
814	((void (*)(EV_P_ W, int))p->w->cb) (EV_A_ p->w, p->events);
815	}	1068	}
816	}	1069	}
817	}	1070	}
818		1071
819	static void	1072	inline void
820	timers_reify (EV_P)	1073	timers_reify (EV_P)
821	{	1074	{
822	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
823	{	1076	{
824	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
827		1080
828	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
829	if (w->repeat)	1082	if (w->repeat)
830	{	1083	{
831	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1084	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1085
832	((WT)w)->at = mn_now + w->repeat;	1086	((WT)w)->at += w->repeat;
		1087	if (((WT)w)->at < mn_now)
		1088	((WT)w)->at = mn_now;
		1089
833	downheap ((WT *)timers, timercnt, 0);	1090	downheap ((WT *)timers, timercnt, 0);
834	}	1091	}
835	else	1092	else
836	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1093	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
837		1094
838	event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
839	}	1096	}
840	}	1097	}
841		1098
842	static void	1099	#if EV_PERIODICS
		1100	inline void
843	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
844	{	1102	{
845	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
846	{	1104	{
847	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
848		1106
849	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
850		1108
851	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
852	if (w->interval)	1110	if (w->reschedule_cb)
853	{	1111	{
		1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1114	downheap ((WT *)periodics, periodiccnt, 0);
		1115	}
		1116	else if (w->interval)
		1117	{
854	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1118	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
855	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1119	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
856	downheap ((WT *)periodics, periodiccnt, 0);	1120	downheap ((WT *)periodics, periodiccnt, 0);
857	}	1121	}
858	else	1122	else
859	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1123	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
860		1124
861	event (EV_A_ (W)w, EV_PERIODIC);	1125	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
862	}	1126	}
863	}	1127	}
864		1128
865	static void	1129	static void
866	periodics_reschedule (EV_P)	1130	periodics_reschedule (EV_P)
…		…
870	/* adjust periodics after time jump */	1134	/* adjust periodics after time jump */
871	for (i = 0; i < periodiccnt; ++i)	1135	for (i = 0; i < periodiccnt; ++i)
872	{	1136	{
873	struct ev_periodic *w = periodics [i];	1137	struct ev_periodic *w = periodics [i];
874		1138
		1139	if (w->reschedule_cb)
		1140	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
875	if (w->interval)	1141	else if (w->interval)
876	{
877	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1142	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
878
879	if (fabs (diff) >= 1e-4)
880	{
881	ev_periodic_stop (EV_A_ w);
882	ev_periodic_start (EV_A_ w);
883
884	i = 0; /* restart loop, inefficient, but time jumps should be rare */
885	}
886	}
887	}	1143	}
		1144
		1145	/* now rebuild the heap */
		1146	for (i = periodiccnt >> 1; i--; )
		1147	downheap ((WT *)periodics, periodiccnt, i);
888	}	1148	}
		1149	#endif
889		1150
890	inline int	1151	inline int
891	time_update_monotonic (EV_P)	1152	time_update_monotonic (EV_P)
892	{	1153	{
893	mn_now = get_clock ();	1154	mn_now = get_clock ();
894		1155
895	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1156	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
896	{	1157	{
897	rt_now = rtmn_diff + mn_now;	1158	ev_rt_now = rtmn_diff + mn_now;
898	return 0;	1159	return 0;
899	}	1160	}
900	else	1161	else
901	{	1162	{
902	now_floor = mn_now;	1163	now_floor = mn_now;
903	rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
904	return 1;	1165	return 1;
905	}	1166	}
906	}	1167	}
907		1168
908	static void	1169	inline void
909	time_update (EV_P)	1170	time_update (EV_P)
910	{	1171	{
911	int i;	1172	int i;
912		1173
913	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
917	{	1178	{
918	ev_tstamp odiff = rtmn_diff;	1179	ev_tstamp odiff = rtmn_diff;
919		1180
920	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1181	for (i = 4; --i; ) /* loop a few times, before making important decisions */
921	{	1182	{
922	rtmn_diff = rt_now - mn_now;	1183	rtmn_diff = ev_rt_now - mn_now;
923		1184
924	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1185	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
925	return; /* all is well */	1186	return; /* all is well */
926		1187
927	rt_now = ev_time ();	1188	ev_rt_now = ev_time ();
928	mn_now = get_clock ();	1189	mn_now = get_clock ();
929	now_floor = mn_now;	1190	now_floor = mn_now;
930	}	1191	}
931		1192
		1193	# if EV_PERIODICS
932	periodics_reschedule (EV_A);	1194	periodics_reschedule (EV_A);
		1195	# endif
933	/* no timer adjustment, as the monotonic clock doesn't jump */	1196	/* no timer adjustment, as the monotonic clock doesn't jump */
934	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1197	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
935	}	1198	}
936	}	1199	}
937	else	1200	else
938	#endif	1201	#endif
939	{	1202	{
940	rt_now = ev_time ();	1203	ev_rt_now = ev_time ();
941		1204
942	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1205	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
943	{	1206	{
		1207	#if EV_PERIODICS
944	periodics_reschedule (EV_A);	1208	periodics_reschedule (EV_A);
		1209	#endif
945		1210
946	/* adjust timers. this is easy, as the offset is the same for all */	1211	/* adjust timers. this is easy, as the offset is the same for all */
947	for (i = 0; i < timercnt; ++i)	1212	for (i = 0; i < timercnt; ++i)
948	((WT)timers [i])->at += rt_now - mn_now;	1213	((WT)timers [i])->at += ev_rt_now - mn_now;
949	}	1214	}
950		1215
951	mn_now = rt_now;	1216	mn_now = ev_rt_now;
952	}	1217	}
953	}	1218	}
954		1219
955	void	1220	void
956	ev_ref (EV_P)	1221	ev_ref (EV_P)
…		…
970	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
971	{	1236	{
972	double block;	1237	double block;
973	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
974		1239
975	do	1240	while (activecnt)
976	{	1241	{
977	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
978	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
979	{	1244	{
980	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
981	call_pending (EV_A);	1246	call_pending (EV_A);
982	}	1247	}
983		1248
		1249	/* we might have forked, so reify kernel state if necessary */
		1250	if (expect_false (postfork))
		1251	loop_fork (EV_A);
		1252
984	/* update fd-related kernel structures */	1253	/* update fd-related kernel structures */
985	fd_reify (EV_A);	1254	fd_reify (EV_A);
986		1255
987	/* calculate blocking time */	1256	/* calculate blocking time */
988		1257
989	/* we only need this for !monotonic clockor timers, but as we basically	1258	/* we only need this for !monotonic clock or timers, but as we basically
990	always have timers, we just calculate it always */	1259	always have timers, we just calculate it always */
991	#if EV_USE_MONOTONIC	1260	#if EV_USE_MONOTONIC
992	if (expect_true (have_monotonic))	1261	if (expect_true (have_monotonic))
993	time_update_monotonic (EV_A);	1262	time_update_monotonic (EV_A);
994	else	1263	else
995	#endif	1264	#endif
996	{	1265	{
997	rt_now = ev_time ();	1266	ev_rt_now = ev_time ();
998	mn_now = rt_now;	1267	mn_now = ev_rt_now;
999	}	1268	}
1000		1269
1001	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1270	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1002	block = 0.;	1271	block = 0.;
1003	else	1272	else
1004	{	1273	{
1005	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1006		1275
1007	if (timercnt)	1276	if (timercnt)
1008	{	1277	{
1009	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1010	if (block > to) block = to;	1279	if (block > to) block = to;
1011	}	1280	}
1012		1281
		1282	#if EV_PERIODICS
1013	if (periodiccnt)	1283	if (periodiccnt)
1014	{	1284	{
1015	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1016	if (block > to) block = to;	1286	if (block > to) block = to;
1017	}	1287	}
		1288	#endif
1018		1289
1019	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1020	}	1291	}
1021		1292
1022	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1023		1294
1024	/* update rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1025	time_update (EV_A);	1296	time_update (EV_A);
1026		1297
1027	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
1028	timers_reify (EV_A); /* relative timers called last */	1299	timers_reify (EV_A); /* relative timers called last */
		1300	#if EV_PERIODICS
1029	periodics_reify (EV_A); /* absolute timers called first */	1301	periodics_reify (EV_A); /* absolute timers called first */
		1302	#endif
1030		1303
1031	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1032	if (!pendingcnt)	1305	if (idlecnt && !any_pending (EV_A))
1033	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1034		1307
1035	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1036	if (checkcnt)	1309	if (expect_false (checkcnt))
1037	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1038		1311
1039	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1040	}	1316	}
1041	while (activecnt && !loop_done);
1042		1317
1043	if (loop_done != 2)	1318	if (loop_done != 2)
1044	loop_done = 0;	1319	loop_done = 0;
1045	}	1320	}
1046		1321
…		…
1106	void	1381	void
1107	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1108	{	1383	{
1109	int fd = w->fd;	1384	int fd = w->fd;
1110		1385
1111	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1112	return;	1387	return;
1113		1388
1114	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1115		1390
1116	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
1117	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1392	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1118	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1393	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1119		1394
1120	fd_change (EV_A_ fd);	1395	fd_change (EV_A_ fd);
1121	}	1396	}
1122		1397
1123	void	1398	void
1124	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1125	{	1400	{
1126	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1127	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1128	return;	1403	return;
		1404
		1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1129		1406
1130	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1131	ev_stop (EV_A_ (W)w);	1408	ev_stop (EV_A_ (W)w);
1132		1409
1133	fd_change (EV_A_ w->fd);	1410	fd_change (EV_A_ w->fd);
1134	}	1411	}
1135		1412
1136	void	1413	void
1137	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1138	{	1415	{
1139	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1140	return;	1417	return;
1141		1418
1142	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1143		1420
1144	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1421	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1145		1422
1146	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1147	array_needsize (timers, timermax, timercnt, );	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1148	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1149	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1150		1427
1151	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1152	}	1429	}
1153		1430
1154	void	1431	void
1155	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1156	{	1433	{
1157	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1158	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1159	return;	1436	return;
1160		1437
1161	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1162		1439
1163	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1164	{	1441	{
1165	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1166	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1167	}	1444	}
1168		1445
1169	((WT)w)->at = w->repeat;	1446	((WT)w)->at -= mn_now;
1170		1447
1171	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
1172	}	1449	}
1173		1450
1174	void	1451	void
…		…
1177	if (ev_is_active (w))	1454	if (ev_is_active (w))
1178	{	1455	{
1179	if (w->repeat)	1456	if (w->repeat)
1180	{	1457	{
1181	((WT)w)->at = mn_now + w->repeat;	1458	((WT)w)->at = mn_now + w->repeat;
1182	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1183	}	1460	}
1184	else	1461	else
1185	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1186	}	1463	}
1187	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1188	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1189	}	1469	}
1190		1470
		1471	#if EV_PERIODICS
1191	void	1472	void
1192	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1193	{	1474	{
1194	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1195	return;	1476	return;
1196		1477
		1478	if (w->reschedule_cb)
		1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1480	else if (w->interval)
		1481	{
1197	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1482	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1198
1199	/* this formula differs from the one in periodic_reify because we do not always round up */	1483	/* this formula differs from the one in periodic_reify because we do not always round up */
1200	if (w->interval)
1201	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1485	}
1202		1486
1203	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1204	array_needsize (periodics, periodicmax, periodiccnt, );	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1205	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1206	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1207		1491
1208	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1209	}	1493	}
1210		1494
1211	void	1495	void
1212	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1213	{	1497	{
1214	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1215	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1216	return;	1500	return;
1217		1501
1218	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1219		1503
1220	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1221	{	1505	{
1222	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1223	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1224	}	1508	}
1225		1509
1226	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1227	}	1511	}
1228		1512
1229	void	1513	void
		1514	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1515	{
		1516	/* TODO: use adjustheap and recalculation */
		1517	ev_periodic_stop (EV_A_ w);
		1518	ev_periodic_start (EV_A_ w);
		1519	}
		1520	#endif
		1521
		1522	void
1230	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1231	{	1524	{
1232	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1233	return;	1526	return;
1234		1527
1235	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1236	array_needsize (idles, idlemax, idlecnt, );	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1237	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1238	}	1531	}
1239		1532
1240	void	1533	void
1241	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1242	{	1535	{
1243	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1244	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1245	return;	1538	return;
1246		1539
1247	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1248	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1249	}	1542	}
1250		1543
1251	void	1544	void
1252	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1253	{	1546	{
1254	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1255	return;	1548	return;
1256		1549
1257	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1258	array_needsize (prepares, preparemax, preparecnt, );	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1259	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1260	}	1553	}
1261		1554
1262	void	1555	void
1263	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1264	{	1557	{
1265	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1266	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1267	return;	1560	return;
1268		1561
1269	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1270	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1271	}	1564	}
1272		1565
1273	void	1566	void
1274	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1275	{	1568	{
1276	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1277	return;	1570	return;
1278		1571
1279	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1280	array_needsize (checks, checkmax, checkcnt, );	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1281	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1282	}	1575	}
1283		1576
1284	void	1577	void
1285	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1286	{	1579	{
1287	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1289	return;	1582	return;
1290		1583
1291	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1292	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1293	}	1586	}
…		…
1298		1591
1299	void	1592	void
1300	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1301	{	1594	{
1302	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1303	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1596	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1304	#endif	1597	#endif
1305	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1306	return;	1599	return;
1307		1600
1308	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1601	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1309		1602
1310	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1311	array_needsize (signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1312	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1313		1606
1314	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1315	{	1608	{
		1609	#if _WIN32
		1610	signal (w->signum, sighandler);
		1611	#else
1316	struct sigaction sa;	1612	struct sigaction sa;
1317	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1318	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
1319	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1615	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1320	sigaction (w->signum, &sa, 0);	1616	sigaction (w->signum, &sa, 0);
		1617	#endif
1321	}	1618	}
1322	}	1619	}
1323		1620
1324	void	1621	void
1325	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1326	{	1623	{
1327	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1328	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1329	return;	1626	return;
1330		1627
1331	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1332	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1333		1630
…		…
1337		1634
1338	void	1635	void
1339	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1340	{	1637	{
1341	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1342	assert (("child watchers are only supported in the default loop", loop == default_loop));	1639	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1343	#endif	1640	#endif
1344	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1345	return;	1642	return;
1346		1643
1347	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1348	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1349	}	1646	}
1350		1647
1351	void	1648	void
1352	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1353	{	1650	{
1354	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1355	if (ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1356	return;	1653	return;
1357		1654
1358	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1359	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1360	}	1657	}
…		…
1375	void (cb)(int revents, void arg) = once->cb;	1672	void (cb)(int revents, void arg) = once->cb;
1376	void *arg = once->arg;	1673	void *arg = once->arg;
1377		1674
1378	ev_io_stop (EV_A_ &once->io);	1675	ev_io_stop (EV_A_ &once->io);
1379	ev_timer_stop (EV_A_ &once->to);	1676	ev_timer_stop (EV_A_ &once->to);
1380	free (once);	1677	ev_free (once);
1381		1678
1382	cb (revents, arg);	1679	cb (revents, arg);
1383	}	1680	}
1384		1681
1385	static void	1682	static void
…		…
1395	}	1692	}
1396		1693
1397	void	1694	void
1398	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1695	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1399	{	1696	{
1400	struct ev_once *once = malloc (sizeof (struct ev_once));	1697	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1401		1698
1402	if (!once)	1699	if (expect_false (!once))
		1700	{
1403	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1404	else	1702	return;
1405	{	1703	}
		1704
1406	once->cb = cb;	1705	once->cb = cb;
1407	once->arg = arg;	1706	once->arg = arg;
1408		1707
1409	ev_watcher_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1410	if (fd >= 0)	1709	if (fd >= 0)
1411	{	1710	{
1412	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1413	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1414	}	1713	}
1415		1714
1416	ev_watcher_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1417	if (timeout >= 0.)	1716	if (timeout >= 0.)
1418	{	1717	{
1419	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1420	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1421	}
1422	}	1720	}
1423	}	1721	}
1424		1722
		1723	#ifdef __cplusplus
		1724	}
		1725	#endif
		1726

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Comparing libev/ev.c (file contents): Revision 1.65 by root, Sun Nov 4 23:29:48 2007 UTC vs. Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.65 by root, Sun Nov 4 23:29:48 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC