[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 1.134 by root, Fri Nov 23 19:13:33 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_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	157	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
107	#endif	159	#endif
108		160
109	/**/	161	/**/
110		162
111	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
119	#endif	171	#endif
120		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
121	/**/	177	/**/
122		178
123	#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) */
124	#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) */
125	#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 */
126	/#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 */
127		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
128	#include "ev.h"	187	# include "ev.h"
		188	#endif
129		189
130	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	192	# define inline static inline
133	#else	193	#else
134	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
135	# define inline static	195	# define inline static
136	#endif	196	#endif
137		197
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
140		200
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
144	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
147		210
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		212
		213	#ifdef _WIN32
		214	# include "ev_win32.c"
		215	#endif
		216
150	/*****************************************************************************/	217	/*****************************************************************************/
151		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
152	typedef struct	267	typedef struct
153	{	268	{
154	struct ev_watcher_list *head;	269	WL head;
155	unsigned char events;	270	unsigned char events;
156	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
157	} ANFD;	275	} ANFD;
158		276
159	typedef struct	277	typedef struct
160	{	278	{
161	W w;	279	W w;
162	int events;	280	int events;
163	} ANPENDING;	281	} ANPENDING;
164		282
165	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
166		284
167	struct ev_loop	285	struct ev_loop
168	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	290	#include "ev_vars.h"
171	};
172	# undef VAR	291	#undef VAR
		292	};
173	# 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;
174		297
175	#else	298	#else
176		299
		300	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	302	#include "ev_vars.h"
179	# undef VAR	303	#undef VAR
		304
		305	static int ev_default_loop_ptr;
180		306
181	#endif	307	#endif
182		308
183	/*****************************************************************************/	309	/*****************************************************************************/
184		310
185	inline ev_tstamp	311	ev_tstamp
186	ev_time (void)	312	ev_time (void)
187	{	313	{
188	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
189	struct timespec ts;	315	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	335	#endif
210		336
211	return ev_time ();	337	return ev_time ();
212	}	338	}
213		339
		340	#if EV_MULTIPLICITY
214	ev_tstamp	341	ev_tstamp
215	ev_now (EV_P)	342	ev_now (EV_P)
216	{	343	{
217	return rt_now;	344	return ev_rt_now;
218	}	345	}
		346	#endif
219		347
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
221		349
222	#define array_needsize(base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
224	{ \	352	{ \
225	int newcnt = cur; \	353	int newcnt = cur; \
226	do \	354	do \
227	{ \	355	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	356	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	357	} \
230	while ((cnt) > newcnt); \	358	while ((cnt) > newcnt); \
231	\	359	\
232	base = realloc (base, sizeof (base) (newcnt)); \	360	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	361	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	362	cur = newcnt; \
		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/\
235	}	371	}
236		372
237	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
238	free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
239		375
240	/*****************************************************************************/	376	/*****************************************************************************/
241		377
242	static void	378	static void
243	anfds_init (ANFD *base, int count)	379	anfds_init (ANFD *base, int count)
…		…
250		386
251	++base;	387	++base;
252	}	388	}
253	}	389	}
254		390
255	static void	391	void
256	event (EV_P_ W w, int events)	392	ev_feed_event (EV_P_ void *w, int revents)
257	{	393	{
258	if (w->pending)	394	W w_ = (W)w;
		395
		396	if (expect_false (w_->pending))
259	{	397	{
260	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
261	return;	399	return;
262	}	400	}
263		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
264	w->pending = ++pendingcnt [ABSPRI (w)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
265	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	406	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
266	pendings [ABSPRI (w)][w->pending - 1].w = w;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
267	pendings [ABSPRI (w)][w->pending - 1].events = events;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
268	}	409	}
269		410
270	static void	411	static void
271	queue_events (EV_P_ W *events, int eventcnt, int type)	412	queue_events (EV_P_ W *events, int eventcnt, int type)
272	{	413	{
273	int i;	414	int i;
274		415
275	for (i = 0; i < eventcnt; ++i)	416	for (i = 0; i < eventcnt; ++i)
276	event (EV_A_ events [i], type);	417	ev_feed_event (EV_A_ events [i], type);
277	}	418	}
278		419
279	static void	420	inline void
280	fd_event (EV_P_ int fd, int events)	421	fd_event (EV_P_ int fd, int revents)
281	{	422	{
282	ANFD *anfd = anfds + fd;	423	ANFD *anfd = anfds + fd;
283	struct ev_io *w;	424	struct ev_io *w;
284		425
285	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	426	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
286	{	427	{
287	int ev = w->events & events;	428	int ev = w->events & revents;
288		429
289	if (ev)	430	if (ev)
290	event (EV_A_ (W)w, ev);	431	ev_feed_event (EV_A_ (W)w, ev);
291	}	432	}
		433	}
		434
		435	void
		436	ev_feed_fd_event (EV_P_ int fd, int revents)
		437	{
		438	fd_event (EV_A_ fd, revents);
292	}	439	}
293		440
294	/*****************************************************************************/	441	/*****************************************************************************/
295		442
296	static void	443	inline void
297	fd_reify (EV_P)	444	fd_reify (EV_P)
298	{	445	{
299	int i;	446	int i;
300		447
301	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
307	int events = 0;	454	int events = 0;
308		455
309	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	456	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
310	events \|= w->events;	457	events \|= w->events;
311		458
		459	#if EV_SELECT_IS_WINSOCKET
		460	if (events)
		461	{
		462	unsigned long argp;
		463	anfd->handle = _get_osfhandle (fd);
		464	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		465	}
		466	#endif
		467
312	anfd->reify = 0;	468	anfd->reify = 0;
313		469
314	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
315	anfd->events = events;	471	anfd->events = events;
316	}	472	}
317		473
318	fdchangecnt = 0;	474	fdchangecnt = 0;
319	}	475	}
320		476
321	static void	477	static void
322	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
323	{	479	{
324	if (anfds [fd].reify \|\| fdchangecnt < 0)	480	if (expect_false (anfds [fd].reify))
325	return;	481	return;
326		482
327	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
328		484
329	++fdchangecnt;	485	++fdchangecnt;
330	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
331	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
332	}	488	}
333		489
334	static void	490	static void
335	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
337	struct ev_io *w;	493	struct ev_io *w;
338		494
339	while ((w = (struct ev_io *)anfds [fd].head))	495	while ((w = (struct ev_io *)anfds [fd].head))
340	{	496	{
341	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
342	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	498	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
343	}	499	}
		500	}
		501
		502	inline int
		503	fd_valid (int fd)
		504	{
		505	#ifdef _WIN32
		506	return _get_osfhandle (fd) != -1;
		507	#else
		508	return fcntl (fd, F_GETFD) != -1;
		509	#endif
344	}	510	}
345		511
346	/* called on EBADF to verify fds */	512	/* called on EBADF to verify fds */
347	static void	513	static void
348	fd_ebadf (EV_P)	514	fd_ebadf (EV_P)
349	{	515	{
350	int fd;	516	int fd;
351		517
352	for (fd = 0; fd < anfdmax; ++fd)	518	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	519	if (anfds [fd].events)
354	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	520	if (!fd_valid (fd) == -1 && errno == EBADF)
355	fd_kill (EV_A_ fd);	521	fd_kill (EV_A_ fd);
356	}	522	}
357		523
358	/* called on ENOMEM in select/poll to kill some fds and retry */	524	/* called on ENOMEM in select/poll to kill some fds and retry */
359	static void	525	static void
…		…
362	int fd;	528	int fd;
363		529
364	for (fd = anfdmax; fd--; )	530	for (fd = anfdmax; fd--; )
365	if (anfds [fd].events)	531	if (anfds [fd].events)
366	{	532	{
367	close (fd);
368	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
369	return;	534	return;
370	}	535	}
371	}	536	}
372		537
373	/* susually called after fork if method needs to re-arm all fds from scratch */	538	/* usually called after fork if backend needs to re-arm all fds from scratch */
374	static void	539	static void
375	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
376	{	541	{
377	int fd;	542	int fd;
378		543
…		…
426		591
427	heap [k] = w;	592	heap [k] = w;
428	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
429	}	594	}
430		595
		596	inline void
		597	adjustheap (WT *heap, int N, int k)
		598	{
		599	upheap (heap, k);
		600	downheap (heap, N, k);
		601	}
		602
431	/*****************************************************************************/	603	/*****************************************************************************/
432		604
433	typedef struct	605	typedef struct
434	{	606	{
435	struct ev_watcher_list *head;	607	WL head;
436	sig_atomic_t volatile gotsig;	608	sig_atomic_t volatile gotsig;
437	} ANSIG;	609	} ANSIG;
438		610
439	static ANSIG *signals;	611	static ANSIG *signals;
440	static int signalmax;	612	static int signalmax;
…		…
456	}	628	}
457		629
458	static void	630	static void
459	sighandler (int signum)	631	sighandler (int signum)
460	{	632	{
		633	#if _WIN32
		634	signal (signum, sighandler);
		635	#endif
		636
461	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
462		638
463	if (!gotsig)	639	if (!gotsig)
464	{	640	{
465	int old_errno = errno;	641	int old_errno = errno;
…		…
467	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
468	errno = old_errno;	644	errno = old_errno;
469	}	645	}
470	}	646	}
471		647
		648	void
		649	ev_feed_signal_event (EV_P_ int signum)
		650	{
		651	WL w;
		652
		653	#if EV_MULTIPLICITY
		654	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		655	#endif
		656
		657	--signum;
		658
		659	if (signum < 0 \|\| signum >= signalmax)
		660	return;
		661
		662	signals [signum].gotsig = 0;
		663
		664	for (w = signals [signum].head; w; w = w->next)
		665	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		666	}
		667
472	static void	668	static void
473	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
474	{	670	{
475	struct ev_watcher_list *w;
476	int signum;	671	int signum;
477		672
478	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
479	gotsig = 0;	674	gotsig = 0;
480		675
481	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
482	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
483	{	678	ev_feed_signal_event (EV_A_ signum + 1);
484	signals [signum].gotsig = 0;	679	}
485		680
486	for (w = signals [signum].head; w; w = w->next)	681	static void
487	event (EV_A_ (W)w, EV_SIGNAL);	682	fd_intern (int fd)
488	}	683	{
		684	#ifdef _WIN32
		685	int arg = 1;
		686	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		687	#else
		688	fcntl (fd, F_SETFD, FD_CLOEXEC);
		689	fcntl (fd, F_SETFL, O_NONBLOCK);
		690	#endif
489	}	691	}
490		692
491	static void	693	static void
492	siginit (EV_P)	694	siginit (EV_P)
493	{	695	{
494	#ifndef WIN32	696	fd_intern (sigpipe [0]);
495	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	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		698
503	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
504	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
505	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
506	}	702	}
507		703
508	/*****************************************************************************/	704	/*****************************************************************************/
509		705
510	#ifndef WIN32
511
512	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
		707
		708	#ifndef _WIN32
		709
513	static struct ev_signal childev;	710	static struct ev_signal childev;
514		711
515	#ifndef WCONTINUED	712	#ifndef WCONTINUED
516	# define WCONTINUED 0	713	# define WCONTINUED 0
517	#endif	714	#endif
…		…
525	if (w->pid == pid \|\| !w->pid)	722	if (w->pid == pid \|\| !w->pid)
526	{	723	{
527	ev_priority (w) = ev_priority (sw); /* need to do it now */	724	ev_priority (w) = ev_priority (sw); /* need to do it now */
528	w->rpid = pid;	725	w->rpid = pid;
529	w->rstatus = status;	726	w->rstatus = status;
530	event (EV_A_ (W)w, EV_CHILD);	727	ev_feed_event (EV_A_ (W)w, EV_CHILD);
531	}	728	}
532	}	729	}
533		730
534	static void	731	static void
535	childcb (EV_P_ struct ev_signal *sw, int revents)	732	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
537	int pid, status;	734	int pid, status;
538		735
539	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
540	{	737	{
541	/* make sure we are called again until all childs have been reaped */	738	/* make sure we are called again until all childs have been reaped */
		739	/* we need to do it this way so that the callback gets called before we continue */
542	event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
543		741
544	child_reap (EV_A_ sw, pid, pid, status);	742	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 */	743	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
546	}	744	}
547	}	745	}
548		746
549	#endif	747	#endif
550		748
551	/*****************************************************************************/	749	/*****************************************************************************/
552		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
553	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
554	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
555	#endif	756	#endif
556	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
557	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
577		778
578	/* return true if we are running with elevated privileges and should ignore env variables */	779	/* return true if we are running with elevated privileges and should ignore env variables */
579	static int	780	static int
580	enable_secure (void)	781	enable_secure (void)
581	{	782	{
582	#ifdef WIN32	783	#ifdef _WIN32
583	return 0;	784	return 0;
584	#else	785	#else
585	return getuid () != geteuid ()	786	return getuid () != geteuid ()
586	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
587	#endif	788	#endif
588	}	789	}
589		790
590	int	791	unsigned int
591	ev_method (EV_P)	792	ev_supported_backends (void)
592	{	793	{
593	return method;	794	unsigned int flags = 0;
594	}
595		795
596	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
597	loop_init (EV_P_ int methods)	797	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		798	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		799	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		800	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		801
		802	return flags;
		803	}
		804
		805	unsigned int
		806	ev_recommended_backends (void)
598	{	807	{
599	if (!method)	808	unsigned int flags = ev_supported_backends ();
		809
		810	#ifndef __NetBSD__
		811	/* kqueue is borked on everything but netbsd apparently */
		812	/* it usually doesn't work correctly on anything but sockets and pipes */
		813	flags &= ~EVBACKEND_KQUEUE;
		814	#endif
		815	#ifdef __APPLE__
		816	// flags &= ~EVBACKEND_KQUEUE; for documentation
		817	flags &= ~EVBACKEND_POLL;
		818	#endif
		819
		820	return flags;
		821	}
		822
		823	unsigned int
		824	ev_embeddable_backends (void)
		825	{
		826	return EVBACKEND_EPOLL
		827	\| EVBACKEND_KQUEUE
		828	\| EVBACKEND_PORT;
		829	}
		830
		831	unsigned int
		832	ev_backend (EV_P)
		833	{
		834	return backend;
		835	}
		836
		837	static void
		838	loop_init (EV_P_ unsigned int flags)
		839	{
		840	if (!backend)
600	{	841	{
601	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
602	{	843	{
603	struct timespec ts;	844	struct timespec ts;
604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
605	have_monotonic = 1;	846	have_monotonic = 1;
606	}	847	}
607	#endif	848	#endif
608		849
609	rt_now = ev_time ();	850	ev_rt_now = ev_time ();
610	mn_now = get_clock ();	851	mn_now = get_clock ();
611	now_floor = mn_now;	852	now_floor = mn_now;
612	rtmn_diff = rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
613		854
614	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
615	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
616	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
617	else
618	methods = EVMETHOD_ANY;
619		859
620	method = 0;	860	if (!(flags & 0x0000ffffUL))
621	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
622	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	862
		863	backend = 0;
		864	#if EV_USE_PORT
		865	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
623	#endif	866	#endif
624	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
625	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
626	#endif	869	#endif
627	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
628	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
629	#endif	872	#endif
630	#if EV_USE_POLL	873	#if EV_USE_POLL
631	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
632	#endif	875	#endif
633	#if EV_USE_SELECT	876	#if EV_USE_SELECT
634	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
635	#endif	878	#endif
636	}
637	}
638		879
639	void	880	ev_init (&sigev, sigcb);
		881	ev_set_priority (&sigev, EV_MAXPRI);
		882	}
		883	}
		884
		885	static void
640	loop_destroy (EV_P)	886	loop_destroy (EV_P)
641	{	887	{
642	int i;	888	int i;
643		889
644	#if EV_USE_WIN32	890	#if EV_USE_PORT
645	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
646	#endif	892	#endif
647	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
648	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
649	#endif	895	#endif
650	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
651	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
652	#endif	898	#endif
653	#if EV_USE_POLL	899	#if EV_USE_POLL
654	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
655	#endif	901	#endif
656	#if EV_USE_SELECT	902	#if EV_USE_SELECT
657	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
658	#endif	904	#endif
659		905
660	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
661	array_free (pending, [i]);	907	array_free (pending, [i]);
662		908
		909	/* have to use the microsoft-never-gets-it-right macro */
663	array_free (fdchange, );	910	array_free (fdchange, EMPTY0);
664	array_free (timer, );	911	array_free (timer, EMPTY0);
		912	#if EV_PERIODICS
665	array_free (periodic, );	913	array_free (periodic, EMPTY0);
		914	#endif
666	array_free (idle, );	915	array_free (idle, EMPTY0);
667	array_free (prepare, );	916	array_free (prepare, EMPTY0);
668	array_free (check, );	917	array_free (check, EMPTY0);
669		918
670	method = 0;	919	backend = 0;
671	/TODO/
672	}	920	}
673		921
674	void	922	static void
675	loop_fork (EV_P)	923	loop_fork (EV_P)
676	{	924	{
677	/TODO/	925	#if EV_USE_PORT
		926	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		927	#endif
		928	#if EV_USE_KQUEUE
		929	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		930	#endif
678	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
679	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
680	#endif	933	#endif
681	#if EV_USE_KQUEUE	934
682	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	935	if (ev_is_active (&sigev))
683	#endif	936	{
		937	/* default loop */
		938
		939	ev_ref (EV_A);
		940	ev_io_stop (EV_A_ &sigev);
		941	close (sigpipe [0]);
		942	close (sigpipe [1]);
		943
		944	while (pipe (sigpipe))
		945	syserr ("(libev) error creating pipe");
		946
		947	siginit (EV_A);
		948	}
		949
		950	postfork = 0;
684	}	951	}
685		952
686	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
687	struct ev_loop *	954	struct ev_loop *
688	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
689	{	956	{
690	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	957	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
691		958
		959	memset (loop, 0, sizeof (struct ev_loop));
		960
692	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
693		962
694	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
695	return loop;	964	return loop;
696		965
697	return 0;	966	return 0;
698	}	967	}
699		968
700	void	969	void
701	ev_loop_destroy (EV_P)	970	ev_loop_destroy (EV_P)
702	{	971	{
703	loop_destroy (EV_A);	972	loop_destroy (EV_A);
704	free (loop);	973	ev_free (loop);
705	}	974	}
706		975
707	void	976	void
708	ev_loop_fork (EV_P)	977	ev_loop_fork (EV_P)
709	{	978	{
710	loop_fork (EV_A);	979	postfork = 1;
711	}	980	}
712		981
713	#endif	982	#endif
714		983
715	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
716	struct ev_loop default_loop_struct;
717	static struct ev_loop *default_loop;
718
719	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
720	#else	987	#else
721	static int default_loop;
722
723	int	988	int
		989	ev_default_loop (unsigned int flags)
724	#endif	990	#endif
725	ev_default_loop (int methods)
726	{	991	{
727	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
728	if (pipe (sigpipe))	993	if (pipe (sigpipe))
729	return 0;	994	return 0;
730		995
731	if (!default_loop)	996	if (!ev_default_loop_ptr)
732	{	997	{
733	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
734	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
735	#else	1000	#else
736	default_loop = 1;	1001	ev_default_loop_ptr = 1;
737	#endif	1002	#endif
738		1003
739	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
740		1005
741	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
742	{	1007	{
743	ev_watcher_init (&sigev, sigcb);
744	ev_set_priority (&sigev, EV_MAXPRI);
745	siginit (EV_A);	1008	siginit (EV_A);
746		1009
747	#ifndef WIN32	1010	#ifndef _WIN32
748	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
749	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
750	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
752	#endif	1015	#endif
753	}	1016	}
754	else	1017	else
755	default_loop = 0;	1018	ev_default_loop_ptr = 0;
756	}	1019	}
757		1020
758	return default_loop;	1021	return ev_default_loop_ptr;
759	}	1022	}
760		1023
761	void	1024	void
762	ev_default_destroy (void)	1025	ev_default_destroy (void)
763	{	1026	{
764	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
765	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
766	#endif	1029	#endif
767		1030
		1031	#ifndef _WIN32
768	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
769	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
		1034	#endif
770		1035
771	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
772	ev_io_stop (EV_A_ &sigev);	1037	ev_io_stop (EV_A_ &sigev);
773		1038
774	close (sigpipe [0]); sigpipe [0] = 0;	1039	close (sigpipe [0]); sigpipe [0] = 0;
…		…
779		1044
780	void	1045	void
781	ev_default_fork (void)	1046	ev_default_fork (void)
782	{	1047	{
783	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
784	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
785	#endif	1050	#endif
786		1051
787	loop_fork (EV_A);	1052	if (backend)
788		1053	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	}	1054	}
797		1055
798	/*****************************************************************************/	1056	/*****************************************************************************/
799		1057
800	static void	1058	static int
		1059	any_pending (EV_P)
		1060	{
		1061	int pri;
		1062
		1063	for (pri = NUMPRI; pri--; )
		1064	if (pendingcnt [pri])
		1065	return 1;
		1066
		1067	return 0;
		1068	}
		1069
		1070	inline void
801	call_pending (EV_P)	1071	call_pending (EV_P)
802	{	1072	{
803	int pri;	1073	int pri;
804		1074
805	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
806	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
807	{	1077	{
808	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
809		1079
810	if (p->w)	1080	if (expect_true (p->w))
811	{	1081	{
812	p->w->pending = 0;	1082	p->w->pending = 0;
813		1083	EV_CB_INVOKE (p->w, p->events);
814	((void (*)(EV_P_ W, int))p->w->cb) (EV_A_ p->w, p->events);
815	}	1084	}
816	}	1085	}
817	}	1086	}
818		1087
819	static void	1088	inline void
820	timers_reify (EV_P)	1089	timers_reify (EV_P)
821	{	1090	{
822	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
823	{	1092	{
824	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
827		1096
828	/* first reschedule or stop timer */	1097	/* first reschedule or stop timer */
829	if (w->repeat)	1098	if (w->repeat)
830	{	1099	{
831	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1100	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1101
832	((WT)w)->at = mn_now + w->repeat;	1102	((WT)w)->at += w->repeat;
		1103	if (((WT)w)->at < mn_now)
		1104	((WT)w)->at = mn_now;
		1105
833	downheap ((WT *)timers, timercnt, 0);	1106	downheap ((WT *)timers, timercnt, 0);
834	}	1107	}
835	else	1108	else
836	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1109	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
837		1110
838	event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
839	}	1112	}
840	}	1113	}
841		1114
842	static void	1115	#if EV_PERIODICS
		1116	inline void
843	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
844	{	1118	{
845	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
846	{	1120	{
847	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
848		1122
849	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
850		1124
851	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
852	if (w->interval)	1126	if (w->reschedule_cb)
853	{	1127	{
		1128	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1129	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1130	downheap ((WT *)periodics, periodiccnt, 0);
		1131	}
		1132	else if (w->interval)
		1133	{
854	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1134	((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));	1135	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);	1136	downheap ((WT *)periodics, periodiccnt, 0);
857	}	1137	}
858	else	1138	else
859	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1139	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
860		1140
861	event (EV_A_ (W)w, EV_PERIODIC);	1141	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
862	}	1142	}
863	}	1143	}
864		1144
865	static void	1145	static void
866	periodics_reschedule (EV_P)	1146	periodics_reschedule (EV_P)
…		…
870	/* adjust periodics after time jump */	1150	/* adjust periodics after time jump */
871	for (i = 0; i < periodiccnt; ++i)	1151	for (i = 0; i < periodiccnt; ++i)
872	{	1152	{
873	struct ev_periodic *w = periodics [i];	1153	struct ev_periodic *w = periodics [i];
874		1154
		1155	if (w->reschedule_cb)
		1156	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
875	if (w->interval)	1157	else if (w->interval)
876	{
877	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1158	((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	}	1159	}
		1160
		1161	/* now rebuild the heap */
		1162	for (i = periodiccnt >> 1; i--; )
		1163	downheap ((WT *)periodics, periodiccnt, i);
888	}	1164	}
		1165	#endif
889		1166
890	inline int	1167	inline int
891	time_update_monotonic (EV_P)	1168	time_update_monotonic (EV_P)
892	{	1169	{
893	mn_now = get_clock ();	1170	mn_now = get_clock ();
894		1171
895	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1172	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
896	{	1173	{
897	rt_now = rtmn_diff + mn_now;	1174	ev_rt_now = rtmn_diff + mn_now;
898	return 0;	1175	return 0;
899	}	1176	}
900	else	1177	else
901	{	1178	{
902	now_floor = mn_now;	1179	now_floor = mn_now;
903	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
904	return 1;	1181	return 1;
905	}	1182	}
906	}	1183	}
907		1184
908	static void	1185	inline void
909	time_update (EV_P)	1186	time_update (EV_P)
910	{	1187	{
911	int i;	1188	int i;
912		1189
913	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
917	{	1194	{
918	ev_tstamp odiff = rtmn_diff;	1195	ev_tstamp odiff = rtmn_diff;
919		1196
920	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1197	for (i = 4; --i; ) /* loop a few times, before making important decisions */
921	{	1198	{
922	rtmn_diff = rt_now - mn_now;	1199	rtmn_diff = ev_rt_now - mn_now;
923		1200
924	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1201	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
925	return; /* all is well */	1202	return; /* all is well */
926		1203
927	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
928	mn_now = get_clock ();	1205	mn_now = get_clock ();
929	now_floor = mn_now;	1206	now_floor = mn_now;
930	}	1207	}
931		1208
		1209	# if EV_PERIODICS
932	periodics_reschedule (EV_A);	1210	periodics_reschedule (EV_A);
		1211	# endif
933	/* no timer adjustment, as the monotonic clock doesn't jump */	1212	/* no timer adjustment, as the monotonic clock doesn't jump */
934	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1213	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
935	}	1214	}
936	}	1215	}
937	else	1216	else
938	#endif	1217	#endif
939	{	1218	{
940	rt_now = ev_time ();	1219	ev_rt_now = ev_time ();
941		1220
942	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1221	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
943	{	1222	{
		1223	#if EV_PERIODICS
944	periodics_reschedule (EV_A);	1224	periodics_reschedule (EV_A);
		1225	#endif
945		1226
946	/* adjust timers. this is easy, as the offset is the same for all */	1227	/* adjust timers. this is easy, as the offset is the same for all */
947	for (i = 0; i < timercnt; ++i)	1228	for (i = 0; i < timercnt; ++i)
948	((WT)timers [i])->at += rt_now - mn_now;	1229	((WT)timers [i])->at += ev_rt_now - mn_now;
949	}	1230	}
950		1231
951	mn_now = rt_now;	1232	mn_now = ev_rt_now;
952	}	1233	}
953	}	1234	}
954		1235
955	void	1236	void
956	ev_ref (EV_P)	1237	ev_ref (EV_P)
…		…
970	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
971	{	1252	{
972	double block;	1253	double block;
973	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1254	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
974		1255
975	do	1256	while (activecnt)
976	{	1257	{
977	/* queue check watchers (and execute them) */	1258	/* queue check watchers (and execute them) */
978	if (expect_false (preparecnt))	1259	if (expect_false (preparecnt))
979	{	1260	{
980	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1261	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
981	call_pending (EV_A);	1262	call_pending (EV_A);
982	}	1263	}
983		1264
		1265	/* we might have forked, so reify kernel state if necessary */
		1266	if (expect_false (postfork))
		1267	loop_fork (EV_A);
		1268
984	/* update fd-related kernel structures */	1269	/* update fd-related kernel structures */
985	fd_reify (EV_A);	1270	fd_reify (EV_A);
986		1271
987	/* calculate blocking time */	1272	/* calculate blocking time */
988		1273
989	/* we only need this for !monotonic clockor timers, but as we basically	1274	/* we only need this for !monotonic clock or timers, but as we basically
990	always have timers, we just calculate it always */	1275	always have timers, we just calculate it always */
991	#if EV_USE_MONOTONIC	1276	#if EV_USE_MONOTONIC
992	if (expect_true (have_monotonic))	1277	if (expect_true (have_monotonic))
993	time_update_monotonic (EV_A);	1278	time_update_monotonic (EV_A);
994	else	1279	else
995	#endif	1280	#endif
996	{	1281	{
997	rt_now = ev_time ();	1282	ev_rt_now = ev_time ();
998	mn_now = rt_now;	1283	mn_now = ev_rt_now;
999	}	1284	}
1000		1285
1001	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1286	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1002	block = 0.;	1287	block = 0.;
1003	else	1288	else
1004	{	1289	{
1005	block = MAX_BLOCKTIME;	1290	block = MAX_BLOCKTIME;
1006		1291
1007	if (timercnt)	1292	if (timercnt)
1008	{	1293	{
1009	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1294	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1010	if (block > to) block = to;	1295	if (block > to) block = to;
1011	}	1296	}
1012		1297
		1298	#if EV_PERIODICS
1013	if (periodiccnt)	1299	if (periodiccnt)
1014	{	1300	{
1015	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1301	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1016	if (block > to) block = to;	1302	if (block > to) block = to;
1017	}	1303	}
		1304	#endif
1018		1305
1019	if (block < 0.) block = 0.;	1306	if (expect_false (block < 0.)) block = 0.;
1020	}	1307	}
1021		1308
1022	method_poll (EV_A_ block);	1309	backend_poll (EV_A_ block);
1023		1310
1024	/* update rt_now, do magic */	1311	/* update ev_rt_now, do magic */
1025	time_update (EV_A);	1312	time_update (EV_A);
1026		1313
1027	/* queue pending timers and reschedule them */	1314	/* queue pending timers and reschedule them */
1028	timers_reify (EV_A); /* relative timers called last */	1315	timers_reify (EV_A); /* relative timers called last */
		1316	#if EV_PERIODICS
1029	periodics_reify (EV_A); /* absolute timers called first */	1317	periodics_reify (EV_A); /* absolute timers called first */
		1318	#endif
1030		1319
1031	/* queue idle watchers unless io or timers are pending */	1320	/* queue idle watchers unless io or timers are pending */
1032	if (!pendingcnt)	1321	if (idlecnt && !any_pending (EV_A))
1033	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1322	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1034		1323
1035	/* queue check watchers, to be executed first */	1324	/* queue check watchers, to be executed first */
1036	if (checkcnt)	1325	if (expect_false (checkcnt))
1037	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1326	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1038		1327
1039	call_pending (EV_A);	1328	call_pending (EV_A);
		1329
		1330	if (expect_false (loop_done))
		1331	break;
1040	}	1332	}
1041	while (activecnt && !loop_done);
1042		1333
1043	if (loop_done != 2)	1334	if (loop_done != 2)
1044	loop_done = 0;	1335	loop_done = 0;
1045	}	1336	}
1046		1337
…		…
1106	void	1397	void
1107	ev_io_start (EV_P_ struct ev_io *w)	1398	ev_io_start (EV_P_ struct ev_io *w)
1108	{	1399	{
1109	int fd = w->fd;	1400	int fd = w->fd;
1110		1401
1111	if (ev_is_active (w))	1402	if (expect_false (ev_is_active (w)))
1112	return;	1403	return;
1113		1404
1114	assert (("ev_io_start called with negative fd", fd >= 0));	1405	assert (("ev_io_start called with negative fd", fd >= 0));
1115		1406
1116	ev_start (EV_A_ (W)w, 1);	1407	ev_start (EV_A_ (W)w, 1);
1117	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1408	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1118	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1409	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1119		1410
1120	fd_change (EV_A_ fd);	1411	fd_change (EV_A_ fd);
1121	}	1412	}
1122		1413
1123	void	1414	void
1124	ev_io_stop (EV_P_ struct ev_io *w)	1415	ev_io_stop (EV_P_ struct ev_io *w)
1125	{	1416	{
1126	ev_clear_pending (EV_A_ (W)w);	1417	ev_clear_pending (EV_A_ (W)w);
1127	if (!ev_is_active (w))	1418	if (expect_false (!ev_is_active (w)))
1128	return;	1419	return;
		1420
		1421	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1129		1422
1130	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1423	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1131	ev_stop (EV_A_ (W)w);	1424	ev_stop (EV_A_ (W)w);
1132		1425
1133	fd_change (EV_A_ w->fd);	1426	fd_change (EV_A_ w->fd);
1134	}	1427	}
1135		1428
1136	void	1429	void
1137	ev_timer_start (EV_P_ struct ev_timer *w)	1430	ev_timer_start (EV_P_ struct ev_timer *w)
1138	{	1431	{
1139	if (ev_is_active (w))	1432	if (expect_false (ev_is_active (w)))
1140	return;	1433	return;
1141		1434
1142	((WT)w)->at += mn_now;	1435	((WT)w)->at += mn_now;
1143		1436
1144	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1437	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1145		1438
1146	ev_start (EV_A_ (W)w, ++timercnt);	1439	ev_start (EV_A_ (W)w, ++timercnt);
1147	array_needsize (timers, timermax, timercnt, );	1440	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1148	timers [timercnt - 1] = w;	1441	timers [timercnt - 1] = w;
1149	upheap ((WT *)timers, timercnt - 1);	1442	upheap ((WT *)timers, timercnt - 1);
1150		1443
1151	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1444	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1152	}	1445	}
1153		1446
1154	void	1447	void
1155	ev_timer_stop (EV_P_ struct ev_timer *w)	1448	ev_timer_stop (EV_P_ struct ev_timer *w)
1156	{	1449	{
1157	ev_clear_pending (EV_A_ (W)w);	1450	ev_clear_pending (EV_A_ (W)w);
1158	if (!ev_is_active (w))	1451	if (expect_false (!ev_is_active (w)))
1159	return;	1452	return;
1160		1453
1161	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1162		1455
1163	if (((W)w)->active < timercnt--)	1456	if (expect_true (((W)w)->active < timercnt--))
1164	{	1457	{
1165	timers [((W)w)->active - 1] = timers [timercnt];	1458	timers [((W)w)->active - 1] = timers [timercnt];
1166	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1167	}	1460	}
1168		1461
1169	((WT)w)->at = w->repeat;	1462	((WT)w)->at -= mn_now;
1170		1463
1171	ev_stop (EV_A_ (W)w);	1464	ev_stop (EV_A_ (W)w);
1172	}	1465	}
1173		1466
1174	void	1467	void
…		…
1177	if (ev_is_active (w))	1470	if (ev_is_active (w))
1178	{	1471	{
1179	if (w->repeat)	1472	if (w->repeat)
1180	{	1473	{
1181	((WT)w)->at = mn_now + w->repeat;	1474	((WT)w)->at = mn_now + w->repeat;
1182	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1475	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1183	}	1476	}
1184	else	1477	else
1185	ev_timer_stop (EV_A_ w);	1478	ev_timer_stop (EV_A_ w);
1186	}	1479	}
1187	else if (w->repeat)	1480	else if (w->repeat)
		1481	{
		1482	w->at = w->repeat;
1188	ev_timer_start (EV_A_ w);	1483	ev_timer_start (EV_A_ w);
		1484	}
1189	}	1485	}
1190		1486
		1487	#if EV_PERIODICS
1191	void	1488	void
1192	ev_periodic_start (EV_P_ struct ev_periodic *w)	1489	ev_periodic_start (EV_P_ struct ev_periodic *w)
1193	{	1490	{
1194	if (ev_is_active (w))	1491	if (expect_false (ev_is_active (w)))
1195	return;	1492	return;
1196		1493
		1494	if (w->reschedule_cb)
		1495	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1496	else if (w->interval)
		1497	{
1197	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1498	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 */	1499	/* 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;	1500	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1501	}
1202		1502
1203	ev_start (EV_A_ (W)w, ++periodiccnt);	1503	ev_start (EV_A_ (W)w, ++periodiccnt);
1204	array_needsize (periodics, periodicmax, periodiccnt, );	1504	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1205	periodics [periodiccnt - 1] = w;	1505	periodics [periodiccnt - 1] = w;
1206	upheap ((WT *)periodics, periodiccnt - 1);	1506	upheap ((WT *)periodics, periodiccnt - 1);
1207		1507
1208	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1508	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1209	}	1509	}
1210		1510
1211	void	1511	void
1212	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1512	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1213	{	1513	{
1214	ev_clear_pending (EV_A_ (W)w);	1514	ev_clear_pending (EV_A_ (W)w);
1215	if (!ev_is_active (w))	1515	if (expect_false (!ev_is_active (w)))
1216	return;	1516	return;
1217		1517
1218	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1219		1519
1220	if (((W)w)->active < periodiccnt--)	1520	if (expect_true (((W)w)->active < periodiccnt--))
1221	{	1521	{
1222	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1522	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1223	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1523	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1224	}	1524	}
1225		1525
1226	ev_stop (EV_A_ (W)w);	1526	ev_stop (EV_A_ (W)w);
1227	}	1527	}
1228		1528
1229	void	1529	void
		1530	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1531	{
		1532	/* TODO: use adjustheap and recalculation */
		1533	ev_periodic_stop (EV_A_ w);
		1534	ev_periodic_start (EV_A_ w);
		1535	}
		1536	#endif
		1537
		1538	void
1230	ev_idle_start (EV_P_ struct ev_idle *w)	1539	ev_idle_start (EV_P_ struct ev_idle *w)
1231	{	1540	{
1232	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1233	return;	1542	return;
1234		1543
1235	ev_start (EV_A_ (W)w, ++idlecnt);	1544	ev_start (EV_A_ (W)w, ++idlecnt);
1236	array_needsize (idles, idlemax, idlecnt, );	1545	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1237	idles [idlecnt - 1] = w;	1546	idles [idlecnt - 1] = w;
1238	}	1547	}
1239		1548
1240	void	1549	void
1241	ev_idle_stop (EV_P_ struct ev_idle *w)	1550	ev_idle_stop (EV_P_ struct ev_idle *w)
1242	{	1551	{
1243	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1244	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1245	return;	1554	return;
1246		1555
1247	idles [((W)w)->active - 1] = idles [--idlecnt];	1556	idles [((W)w)->active - 1] = idles [--idlecnt];
1248	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1249	}	1558	}
1250		1559
1251	void	1560	void
1252	ev_prepare_start (EV_P_ struct ev_prepare *w)	1561	ev_prepare_start (EV_P_ struct ev_prepare *w)
1253	{	1562	{
1254	if (ev_is_active (w))	1563	if (expect_false (ev_is_active (w)))
1255	return;	1564	return;
1256		1565
1257	ev_start (EV_A_ (W)w, ++preparecnt);	1566	ev_start (EV_A_ (W)w, ++preparecnt);
1258	array_needsize (prepares, preparemax, preparecnt, );	1567	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1259	prepares [preparecnt - 1] = w;	1568	prepares [preparecnt - 1] = w;
1260	}	1569	}
1261		1570
1262	void	1571	void
1263	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1572	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1264	{	1573	{
1265	ev_clear_pending (EV_A_ (W)w);	1574	ev_clear_pending (EV_A_ (W)w);
1266	if (ev_is_active (w))	1575	if (expect_false (!ev_is_active (w)))
1267	return;	1576	return;
1268		1577
1269	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1578	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1270	ev_stop (EV_A_ (W)w);	1579	ev_stop (EV_A_ (W)w);
1271	}	1580	}
1272		1581
1273	void	1582	void
1274	ev_check_start (EV_P_ struct ev_check *w)	1583	ev_check_start (EV_P_ struct ev_check *w)
1275	{	1584	{
1276	if (ev_is_active (w))	1585	if (expect_false (ev_is_active (w)))
1277	return;	1586	return;
1278		1587
1279	ev_start (EV_A_ (W)w, ++checkcnt);	1588	ev_start (EV_A_ (W)w, ++checkcnt);
1280	array_needsize (checks, checkmax, checkcnt, );	1589	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1281	checks [checkcnt - 1] = w;	1590	checks [checkcnt - 1] = w;
1282	}	1591	}
1283		1592
1284	void	1593	void
1285	ev_check_stop (EV_P_ struct ev_check *w)	1594	ev_check_stop (EV_P_ struct ev_check *w)
1286	{	1595	{
1287	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1289	return;	1598	return;
1290		1599
1291	checks [((W)w)->active - 1] = checks [--checkcnt];	1600	checks [((W)w)->active - 1] = checks [--checkcnt];
1292	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1293	}	1602	}
…		…
1298		1607
1299	void	1608	void
1300	ev_signal_start (EV_P_ struct ev_signal *w)	1609	ev_signal_start (EV_P_ struct ev_signal *w)
1301	{	1610	{
1302	#if EV_MULTIPLICITY	1611	#if EV_MULTIPLICITY
1303	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1612	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1304	#endif	1613	#endif
1305	if (ev_is_active (w))	1614	if (expect_false (ev_is_active (w)))
1306	return;	1615	return;
1307		1616
1308	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1617	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1309		1618
1310	ev_start (EV_A_ (W)w, 1);	1619	ev_start (EV_A_ (W)w, 1);
1311	array_needsize (signals, signalmax, w->signum, signals_init);	1620	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1312	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1621	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1313		1622
1314	if (!((WL)w)->next)	1623	if (!((WL)w)->next)
1315	{	1624	{
		1625	#if _WIN32
		1626	signal (w->signum, sighandler);
		1627	#else
1316	struct sigaction sa;	1628	struct sigaction sa;
1317	sa.sa_handler = sighandler;	1629	sa.sa_handler = sighandler;
1318	sigfillset (&sa.sa_mask);	1630	sigfillset (&sa.sa_mask);
1319	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1631	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1320	sigaction (w->signum, &sa, 0);	1632	sigaction (w->signum, &sa, 0);
		1633	#endif
1321	}	1634	}
1322	}	1635	}
1323		1636
1324	void	1637	void
1325	ev_signal_stop (EV_P_ struct ev_signal *w)	1638	ev_signal_stop (EV_P_ struct ev_signal *w)
1326	{	1639	{
1327	ev_clear_pending (EV_A_ (W)w);	1640	ev_clear_pending (EV_A_ (W)w);
1328	if (!ev_is_active (w))	1641	if (expect_false (!ev_is_active (w)))
1329	return;	1642	return;
1330		1643
1331	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1644	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1332	ev_stop (EV_A_ (W)w);	1645	ev_stop (EV_A_ (W)w);
1333		1646
…		…
1337		1650
1338	void	1651	void
1339	ev_child_start (EV_P_ struct ev_child *w)	1652	ev_child_start (EV_P_ struct ev_child *w)
1340	{	1653	{
1341	#if EV_MULTIPLICITY	1654	#if EV_MULTIPLICITY
1342	assert (("child watchers are only supported in the default loop", loop == default_loop));	1655	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1343	#endif	1656	#endif
1344	if (ev_is_active (w))	1657	if (expect_false (ev_is_active (w)))
1345	return;	1658	return;
1346		1659
1347	ev_start (EV_A_ (W)w, 1);	1660	ev_start (EV_A_ (W)w, 1);
1348	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1661	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1349	}	1662	}
1350		1663
1351	void	1664	void
1352	ev_child_stop (EV_P_ struct ev_child *w)	1665	ev_child_stop (EV_P_ struct ev_child *w)
1353	{	1666	{
1354	ev_clear_pending (EV_A_ (W)w);	1667	ev_clear_pending (EV_A_ (W)w);
1355	if (ev_is_active (w))	1668	if (expect_false (!ev_is_active (w)))
1356	return;	1669	return;
1357		1670
1358	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1671	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1359	ev_stop (EV_A_ (W)w);	1672	ev_stop (EV_A_ (W)w);
1360	}	1673	}
		1674
		1675	#if EV_MULTIPLICITY
		1676	static void
		1677	embed_cb (EV_P_ struct ev_io *io, int revents)
		1678	{
		1679	struct ev_embed w = (struct ev_embed )(((char *)io) - offsetof (struct ev_embed, io));
		1680
		1681	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1682	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1683	}
		1684
		1685	void
		1686	ev_embed_start (EV_P_ struct ev_embed *w)
		1687	{
		1688	if (expect_false (ev_is_active (w)))
		1689	return;
		1690
		1691	{
		1692	struct ev_loop *loop = w->loop;
		1693	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1694	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1695	}
		1696
		1697	ev_io_start (EV_A_ &w->io);
		1698	ev_start (EV_A_ (W)w, 1);
		1699	}
		1700
		1701	void
		1702	ev_embed_stop (EV_P_ struct ev_embed *w)
		1703	{
		1704	ev_clear_pending (EV_A_ (W)w);
		1705	if (expect_false (!ev_is_active (w)))
		1706	return;
		1707
		1708	ev_io_stop (EV_A_ &w->io);
		1709	ev_stop (EV_A_ (W)w);
		1710	}
		1711	#endif
1361		1712
1362	/*****************************************************************************/	1713	/*****************************************************************************/
1363		1714
1364	struct ev_once	1715	struct ev_once
1365	{	1716	{
…		…
1375	void (cb)(int revents, void arg) = once->cb;	1726	void (cb)(int revents, void arg) = once->cb;
1376	void *arg = once->arg;	1727	void *arg = once->arg;
1377		1728
1378	ev_io_stop (EV_A_ &once->io);	1729	ev_io_stop (EV_A_ &once->io);
1379	ev_timer_stop (EV_A_ &once->to);	1730	ev_timer_stop (EV_A_ &once->to);
1380	free (once);	1731	ev_free (once);
1381		1732
1382	cb (revents, arg);	1733	cb (revents, arg);
1383	}	1734	}
1384		1735
1385	static void	1736	static void
…		…
1395	}	1746	}
1396		1747
1397	void	1748	void
1398	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1749	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1399	{	1750	{
1400	struct ev_once *once = malloc (sizeof (struct ev_once));	1751	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1401		1752
1402	if (!once)	1753	if (expect_false (!once))
		1754	{
1403	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1755	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1404	else	1756	return;
1405	{	1757	}
		1758
1406	once->cb = cb;	1759	once->cb = cb;
1407	once->arg = arg;	1760	once->arg = arg;
1408		1761
1409	ev_watcher_init (&once->io, once_cb_io);	1762	ev_init (&once->io, once_cb_io);
1410	if (fd >= 0)	1763	if (fd >= 0)
1411	{	1764	{
1412	ev_io_set (&once->io, fd, events);	1765	ev_io_set (&once->io, fd, events);
1413	ev_io_start (EV_A_ &once->io);	1766	ev_io_start (EV_A_ &once->io);
1414	}	1767	}
1415		1768
1416	ev_watcher_init (&once->to, once_cb_to);	1769	ev_init (&once->to, once_cb_to);
1417	if (timeout >= 0.)	1770	if (timeout >= 0.)
1418	{	1771	{
1419	ev_timer_set (&once->to, timeout, 0.);	1772	ev_timer_set (&once->to, timeout, 0.);
1420	ev_timer_start (EV_A_ &once->to);	1773	ev_timer_start (EV_A_ &once->to);
1421	}
1422	}	1774	}
1423	}	1775	}
1424		1776
		1777	#ifdef __cplusplus
		1778	}
		1779	#endif
		1780

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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 1.134 by root, Fri Nov 23 19:13:33 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 1.134 by root, Fri Nov 23 19:13:33 2007 UTC