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

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.128 by root, Thu Nov 22 12:28:27 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
58	#include <stdlib.h>	98	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	99	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	100	#include <stddef.h>
63		101
64	#include <stdio.h>	102	#include <stdio.h>
65		103
66	#include <assert.h>	104	#include <assert.h>
67	#include <errno.h>	105	#include <errno.h>
68	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
69	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
70	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	120	# endif
72	#include <sys/time.h>	121	#endif
73	#include <time.h>
74		122
75	/**/	123	/**/
76		124
77	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
79	#endif	131	#endif
80		132
81	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
83	#endif	135	#endif
84		136
85	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
87	#endif	143	#endif
88		144
89	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
91	#endif	147	#endif
92		148
93	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
95	#endif	151	#endif
96		152
97	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
98	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
99	#endif	155	#endif
100		156
101	/**/	157	/**/
		158
		159	/* darwin simply cannot be helped */
		160	#ifdef __APPLE__
		161	# undef EV_USE_POLL
		162	# undef EV_USE_KQUEUE
		163	#endif
102		164
103	#ifndef CLOCK_MONOTONIC	165	#ifndef CLOCK_MONOTONIC
104	# undef EV_USE_MONOTONIC	166	# undef EV_USE_MONOTONIC
105	# define EV_USE_MONOTONIC 0	167	# define EV_USE_MONOTONIC 0
106	#endif	168	#endif
…		…
108	#ifndef CLOCK_REALTIME	170	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	171	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	172	# define EV_USE_REALTIME 0
111	#endif	173	#endif
112		174
		175	#if EV_SELECT_IS_WINSOCKET
		176	# include <winsock.h>
		177	#endif
		178
113	/**/	179	/**/
114		180
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	181	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	182	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	183	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	184	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
119		185
		186	#ifdef EV_H
		187	# include EV_H
		188	#else
120	#include "ev.h"	189	# include "ev.h"
		190	#endif
121		191
122	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	194	# define inline static inline
125	#else	195	#else
126	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
127	# define inline static	197	# define inline static
128	#endif	198	#endif
129		199
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
132		202
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
136	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
139		212
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		214
		215	#ifdef _WIN32
		216	# include "ev_win32.c"
		217	#endif
		218
142	/*****************************************************************************/	219	/*****************************************************************************/
143		220
		221	static void (syserr_cb)(const char msg);
		222
		223	void ev_set_syserr_cb (void (cb)(const char msg))
		224	{
		225	syserr_cb = cb;
		226	}
		227
		228	static void
		229	syserr (const char *msg)
		230	{
		231	if (!msg)
		232	msg = "(libev) system error";
		233
		234	if (syserr_cb)
		235	syserr_cb (msg);
		236	else
		237	{
		238	perror (msg);
		239	abort ();
		240	}
		241	}
		242
		243	static void (alloc)(void *ptr, long size);
		244
		245	void ev_set_allocator (void (cb)(void *ptr, long size))
		246	{
		247	alloc = cb;
		248	}
		249
		250	static void *
		251	ev_realloc (void *ptr, long size)
		252	{
		253	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		254
		255	if (!ptr && size)
		256	{
		257	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		258	abort ();
		259	}
		260
		261	return ptr;
		262	}
		263
		264	#define ev_malloc(size) ev_realloc (0, (size))
		265	#define ev_free(ptr) ev_realloc ((ptr), 0)
		266
		267	/*****************************************************************************/
		268
144	typedef struct	269	typedef struct
145	{	270	{
146	struct ev_watcher_list *head;	271	WL head;
147	unsigned char events;	272	unsigned char events;
148	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
149	} ANFD;	277	} ANFD;
150		278
151	typedef struct	279	typedef struct
152	{	280	{
153	W w;	281	W w;
154	int events;	282	int events;
155	} ANPENDING;	283	} ANPENDING;
156		284
157	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
158		286
159	struct ev_loop	287	struct ev_loop
160	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	292	#include "ev_vars.h"
163	};
164	# undef VAR	293	#undef VAR
		294	};
165	# include "ev_wrap.h"	295	#include "ev_wrap.h"
		296
		297	static struct ev_loop default_loop_struct;
		298	struct ev_loop *ev_default_loop_ptr;
166		299
167	#else	300	#else
168		301
		302	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	304	#include "ev_vars.h"
171	# undef VAR	305	#undef VAR
		306
		307	static int ev_default_loop_ptr;
172		308
173	#endif	309	#endif
174		310
175	/*****************************************************************************/	311	/*****************************************************************************/
176		312
177	inline ev_tstamp	313	ev_tstamp
178	ev_time (void)	314	ev_time (void)
179	{	315	{
180	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
181	struct timespec ts;	317	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	337	#endif
202		338
203	return ev_time ();	339	return ev_time ();
204	}	340	}
205		341
		342	#if EV_MULTIPLICITY
206	ev_tstamp	343	ev_tstamp
207	ev_now (EV_P)	344	ev_now (EV_P)
208	{	345	{
209	return rt_now;	346	return ev_rt_now;
210	}	347	}
		348	#endif
211		349
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
213		351
214	#define array_needsize(base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
216	{ \	354	{ \
217	int newcnt = cur; \	355	int newcnt = cur; \
218	do \	356	do \
219	{ \	357	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	358	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	359	} \
222	while ((cnt) > newcnt); \	360	while ((cnt) > newcnt); \
223	\	361	\
224	base = realloc (base, sizeof (base) (newcnt)); \	362	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	363	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	364	cur = newcnt; \
227	}	365	}
		366
		367	#define array_slim(type,stem) \
		368	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		369	{ \
		370	stem ## max = array_roundsize (stem ## cnt >> 1); \
		371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		373	}
		374
		375	#define array_free(stem, idx) \
		376	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		377
229	/*****************************************************************************/	378	/*****************************************************************************/
230		379
231	static void	380	static void
232	anfds_init (ANFD *base, int count)	381	anfds_init (ANFD *base, int count)
…		…
239		388
240	++base;	389	++base;
241	}	390	}
242	}	391	}
243		392
244	static void	393	void
245	event (EV_P_ W w, int events)	394	ev_feed_event (EV_P_ void *w, int revents)
246	{	395	{
247	if (w->pending)	396	W w_ = (W)w;
		397
		398	if (expect_false (w_->pending))
248	{	399	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	401	return;
251	}	402	}
252		403
253	w->pending = ++pendingcnt [ABSPRI (w)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	405	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	408	}
258		409
259	static void	410	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	411	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	412	{
262	int i;	413	int i;
263		414
264	for (i = 0; i < eventcnt; ++i)	415	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	416	ev_feed_event (EV_A_ events [i], type);
266	}	417	}
267		418
268	static void	419	inline void
269	fd_event (EV_P_ int fd, int events)	420	fd_event (EV_P_ int fd, int revents)
270	{	421	{
271	ANFD *anfd = anfds + fd;	422	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	423	struct ev_io *w;
273		424
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	425	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	426	{
276	int ev = w->events & events;	427	int ev = w->events & revents;
277		428
278	if (ev)	429	if (ev)
279	event (EV_A_ (W)w, ev);	430	ev_feed_event (EV_A_ (W)w, ev);
280	}	431	}
		432	}
		433
		434	void
		435	ev_feed_fd_event (EV_P_ int fd, int revents)
		436	{
		437	fd_event (EV_A_ fd, revents);
281	}	438	}
282		439
283	/*****************************************************************************/	440	/*****************************************************************************/
284		441
285	static void	442	inline void
286	fd_reify (EV_P)	443	fd_reify (EV_P)
287	{	444	{
288	int i;	445	int i;
289		446
290	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
296	int events = 0;	453	int events = 0;
297		454
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	455	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	456	events \|= w->events;
300		457
		458	#if EV_SELECT_IS_WINSOCKET
		459	if (events)
		460	{
		461	unsigned long argp;
		462	anfd->handle = _get_osfhandle (fd);
		463	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		464	}
		465	#endif
		466
301	anfd->reify = 0;	467	anfd->reify = 0;
302		468
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	470	anfd->events = events;
307	}
308	}	471	}
309		472
310	fdchangecnt = 0;	473	fdchangecnt = 0;
311	}	474	}
312		475
313	static void	476	static void
314	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
315	{	478	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	479	if (expect_false (anfds [fd].reify))
317	return;	480	return;
318		481
319	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
320		483
321	++fdchangecnt;	484	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
323	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
324	}	487	}
325		488
326	static void	489	static void
327	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	492	struct ev_io *w;
330		493
331	while ((w = (struct ev_io *)anfds [fd].head))	494	while ((w = (struct ev_io *)anfds [fd].head))
332	{	495	{
333	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	497	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	498	}
		499	}
		500
		501	inline int
		502	fd_valid (int fd)
		503	{
		504	#ifdef _WIN32
		505	return _get_osfhandle (fd) != -1;
		506	#else
		507	return fcntl (fd, F_GETFD) != -1;
		508	#endif
336	}	509	}
337		510
338	/* called on EBADF to verify fds */	511	/* called on EBADF to verify fds */
339	static void	512	static void
340	fd_ebadf (EV_P)	513	fd_ebadf (EV_P)
341	{	514	{
342	int fd;	515	int fd;
343		516
344	for (fd = 0; fd < anfdmax; ++fd)	517	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	518	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	519	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	520	fd_kill (EV_A_ fd);
348	}	521	}
349		522
350	/* called on ENOMEM in select/poll to kill some fds and retry */	523	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	524	static void
352	fd_enomem (EV_P)	525	fd_enomem (EV_P)
353	{	526	{
354	int fd = anfdmax;	527	int fd;
355		528
356	while (fd--)	529	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	530	if (anfds [fd].events)
358	{	531	{
359	close (fd);
360	fd_kill (EV_A_ fd);	532	fd_kill (EV_A_ fd);
361	return;	533	return;
362	}	534	}
363	}	535	}
364		536
365	/* susually called after fork if method needs to re-arm all fds from scratch */	537	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	538	static void
367	fd_rearm_all (EV_P)	539	fd_rearm_all (EV_P)
368	{	540	{
369	int fd;	541	int fd;
370		542
…		…
385	WT w = heap [k];	557	WT w = heap [k];
386		558
387	while (k && heap [k >> 1]->at > w->at)	559	while (k && heap [k >> 1]->at > w->at)
388	{	560	{
389	heap [k] = heap [k >> 1];	561	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	562	((W)heap [k])->active = k + 1;
391	k >>= 1;	563	k >>= 1;
392	}	564	}
393		565
394	heap [k] = w;	566	heap [k] = w;
395	heap [k]->active = k + 1;	567	((W)heap [k])->active = k + 1;
396		568
397	}	569	}
398		570
399	static void	571	static void
400	downheap (WT *heap, int N, int k)	572	downheap (WT *heap, int N, int k)
…		…
410		582
411	if (w->at <= heap [j]->at)	583	if (w->at <= heap [j]->at)
412	break;	584	break;
413		585
414	heap [k] = heap [j];	586	heap [k] = heap [j];
415	heap [k]->active = k + 1;	587	((W)heap [k])->active = k + 1;
416	k = j;	588	k = j;
417	}	589	}
418		590
419	heap [k] = w;	591	heap [k] = w;
420	heap [k]->active = k + 1;	592	((W)heap [k])->active = k + 1;
		593	}
		594
		595	inline void
		596	adjustheap (WT *heap, int N, int k)
		597	{
		598	upheap (heap, k);
		599	downheap (heap, N, k);
421	}	600	}
422		601
423	/*****************************************************************************/	602	/*****************************************************************************/
424		603
425	typedef struct	604	typedef struct
426	{	605	{
427	struct ev_watcher_list *head;	606	WL head;
428	sig_atomic_t volatile gotsig;	607	sig_atomic_t volatile gotsig;
429	} ANSIG;	608	} ANSIG;
430		609
431	static ANSIG *signals;	610	static ANSIG *signals;
432	static int signalmax;	611	static int signalmax;
…		…
448	}	627	}
449		628
450	static void	629	static void
451	sighandler (int signum)	630	sighandler (int signum)
452	{	631	{
		632	#if _WIN32
		633	signal (signum, sighandler);
		634	#endif
		635
453	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
454		637
455	if (!gotsig)	638	if (!gotsig)
456	{	639	{
457	int old_errno = errno;	640	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	643	errno = old_errno;
461	}	644	}
462	}	645	}
463		646
		647	void
		648	ev_feed_signal_event (EV_P_ int signum)
		649	{
		650	WL w;
		651
		652	#if EV_MULTIPLICITY
		653	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		654	#endif
		655
		656	--signum;
		657
		658	if (signum < 0 \|\| signum >= signalmax)
		659	return;
		660
		661	signals [signum].gotsig = 0;
		662
		663	for (w = signals [signum].head; w; w = w->next)
		664	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		665	}
		666
464	static void	667	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	669	{
467	struct ev_watcher_list *w;
468	int signum;	670	int signum;
469		671
470	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	673	gotsig = 0;
472		674
473	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
475	{	677	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	678	}
477		679
478	for (w = signals [signum].head; w; w = w->next)	680	static void
479	event (EV_A_ (W)w, EV_SIGNAL);	681	fd_intern (int fd)
480	}	682	{
		683	#ifdef _WIN32
		684	int arg = 1;
		685	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		686	#else
		687	fcntl (fd, F_SETFD, FD_CLOEXEC);
		688	fcntl (fd, F_SETFL, O_NONBLOCK);
		689	#endif
481	}	690	}
482		691
483	static void	692	static void
484	siginit (EV_P)	693	siginit (EV_P)
485	{	694	{
486	#ifndef WIN32	695	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
488	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
489
490	/* rather than sort out wether we really need nb, set it */
491	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
492	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
493	#endif
494		697
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	701	}
499		702
500	/*****************************************************************************/	703	/*****************************************************************************/
501		704
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
		706
		707	#ifndef _WIN32
		708
505	static struct ev_signal childev;	709	static struct ev_signal childev;
506		710
507	#ifndef WCONTINUED	711	#ifndef WCONTINUED
508	# define WCONTINUED 0	712	# define WCONTINUED 0
509	#endif	713	#endif
…		…
514	struct ev_child *w;	718	struct ev_child *w;
515		719
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	720	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
517	if (w->pid == pid \|\| !w->pid)	721	if (w->pid == pid \|\| !w->pid)
518	{	722	{
519	w->priority = sw->priority; /* need to do it now */	723	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	724	w->rpid = pid;
521	w->rstatus = status;	725	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	726	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	727	}
524	}	728	}
525		729
526	static void	730	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	731	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	733	int pid, status;
530		734
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	735	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	736	{
533	/* make sure we are called again until all childs have been reaped */	737	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	738	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		739
536	child_reap (EV_A_ sw, pid, pid, status);	740	child_reap (EV_A_ sw, pid, pid, status);
537	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	741	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	742	}
539	}	743	}
540		744
541	#endif	745	#endif
542		746
543	/*****************************************************************************/	747	/*****************************************************************************/
544		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
545	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
546	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
547	#endif	754	#endif
548	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
549	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
569		776
570	/* return true if we are running with elevated privileges and should ignore env variables */	777	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	778	static int
572	enable_secure (void)	779	enable_secure (void)
573	{	780	{
574	#ifdef WIN32	781	#ifdef _WIN32
575	return 0;	782	return 0;
576	#else	783	#else
577	return getuid () != geteuid ()	784	return getuid () != geteuid ()
578	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
579	#endif	786	#endif
580	}	787	}
581		788
582	int	789	unsigned int
583	ev_method (EV_P)	790	ev_method (EV_P)
584	{	791	{
585	return method;	792	return method;
586	}	793	}
587		794
588	static void	795	static void
589	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
590	{	797	{
591	if (!method)	798	if (!method)
592	{	799	{
593	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
594	{	801	{
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	804	have_monotonic = 1;
598	}	805	}
599	#endif	806	#endif
600		807
601	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	809	mn_now = get_clock ();
603	now_floor = mn_now;	810	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
605		812
606	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	814	&& !enable_secure ()
		815	&& getenv ("LIBEV_FLAGS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	816	flags = atoi (getenv ("LIBEV_FLAGS"));
		817
		818	if (!(flags & EVMETHOD_ALL))
609	else	819	{
610	methods = EVMETHOD_ANY;	820	flags \|= EVMETHOD_ALL;
		821	#if EV_USE_KQUEUE && !defined (__NetBSD__)
		822	/* kqueue is borked on everything but netbsd apparently */
		823	/* it usually doesn't work correctly on anything but sockets and pipes */
		824	flags &= ~EVMETHOD_KQUEUE;
		825	#endif
		826	}
611		827
612	method = 0;	828	method = 0;
		829	#if EV_USE_PORT
		830	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		831	#endif
613	#if EV_USE_KQUEUE	832	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
615	#endif	834	#endif
616	#if EV_USE_EPOLL	835	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	836	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
618	#endif	837	#endif
619	#if EV_USE_POLL	838	#if EV_USE_POLL
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	839	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
621	#endif	840	#endif
622	#if EV_USE_SELECT	841	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	842	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
624	#endif	843	#endif
625	}
626	}
627		844
628	void	845	ev_init (&sigev, sigcb);
		846	ev_set_priority (&sigev, EV_MAXPRI);
		847	}
		848	}
		849
		850	static void
629	loop_destroy (EV_P)	851	loop_destroy (EV_P)
630	{	852	{
		853	int i;
		854
		855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		857	#endif
631	#if EV_USE_KQUEUE	858	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	859	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	860	#endif
634	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	866	#endif
640	#if EV_USE_SELECT	867	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	868	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	869	#endif
643		870
		871	for (i = NUMPRI; i--; )
		872	array_free (pending, [i]);
		873
		874	/* have to use the microsoft-never-gets-it-right macro */
		875	array_free (fdchange, EMPTY0);
		876	array_free (timer, EMPTY0);
		877	#if EV_PERIODICS
		878	array_free (periodic, EMPTY0);
		879	#endif
		880	array_free (idle, EMPTY0);
		881	array_free (prepare, EMPTY0);
		882	array_free (check, EMPTY0);
		883
644	method = 0;	884	method = 0;
645	/TODO/
646	}	885	}
647		886
648	void	887	static void
649	loop_fork (EV_P)	888	loop_fork (EV_P)
650	{	889	{
651	/TODO/	890	#if EV_USE_PORT
		891	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		892	#endif
		893	#if EV_USE_KQUEUE
		894	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		895	#endif
652	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	897	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	898	#endif
655	#if EV_USE_KQUEUE	899
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	900	if (ev_is_active (&sigev))
657	#endif	901	{
		902	/* default loop */
		903
		904	ev_ref (EV_A);
		905	ev_io_stop (EV_A_ &sigev);
		906	close (sigpipe [0]);
		907	close (sigpipe [1]);
		908
		909	while (pipe (sigpipe))
		910	syserr ("(libev) error creating pipe");
		911
		912	siginit (EV_A);
		913	}
		914
		915	postfork = 0;
658	}	916	}
659		917
660	#if EV_MULTIPLICITY	918	#if EV_MULTIPLICITY
661	struct ev_loop *	919	struct ev_loop *
662	ev_loop_new (int methods)	920	ev_loop_new (unsigned int flags)
663	{	921	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	922	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
665		923
		924	memset (loop, 0, sizeof (struct ev_loop));
		925
666	loop_init (EV_A_ methods);	926	loop_init (EV_A_ flags);
667		927
668	if (ev_method (EV_A))	928	if (ev_method (EV_A))
669	return loop;	929	return loop;
670		930
671	return 0;	931	return 0;
…		…
673		933
674	void	934	void
675	ev_loop_destroy (EV_P)	935	ev_loop_destroy (EV_P)
676	{	936	{
677	loop_destroy (EV_A);	937	loop_destroy (EV_A);
678	free (loop);	938	ev_free (loop);
679	}	939	}
680		940
681	void	941	void
682	ev_loop_fork (EV_P)	942	ev_loop_fork (EV_P)
683	{	943	{
684	loop_fork (EV_A);	944	postfork = 1;
685	}	945	}
686		946
687	#endif	947	#endif
688		948
689	#if EV_MULTIPLICITY	949	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	950	struct ev_loop *
		951	ev_default_loop_init (unsigned int flags)
694	#else	952	#else
695	static int default_loop;
696
697	int	953	int
		954	ev_default_loop (unsigned int flags)
698	#endif	955	#endif
699	ev_default_loop (int methods)
700	{	956	{
701	if (sigpipe [0] == sigpipe [1])	957	if (sigpipe [0] == sigpipe [1])
702	if (pipe (sigpipe))	958	if (pipe (sigpipe))
703	return 0;	959	return 0;
704		960
705	if (!default_loop)	961	if (!ev_default_loop_ptr)
706	{	962	{
707	#if EV_MULTIPLICITY	963	#if EV_MULTIPLICITY
708	struct ev_loop *loop = default_loop = &default_loop_struct;	964	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
709	#else	965	#else
710	default_loop = 1;	966	ev_default_loop_ptr = 1;
711	#endif	967	#endif
712		968
713	loop_init (EV_A_ methods);	969	loop_init (EV_A_ flags);
714		970
715	if (ev_method (EV_A))	971	if (ev_method (EV_A))
716	{	972	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	973	siginit (EV_A);
720		974
721	#ifndef WIN32	975	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	976	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	977	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	978	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	979	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	980	#endif
727	}	981	}
728	else	982	else
729	default_loop = 0;	983	ev_default_loop_ptr = 0;
730	}	984	}
731		985
732	return default_loop;	986	return ev_default_loop_ptr;
733	}	987	}
734		988
735	void	989	void
736	ev_default_destroy (void)	990	ev_default_destroy (void)
737	{	991	{
738	#if EV_MULTIPLICITY	992	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	993	struct ev_loop *loop = ev_default_loop_ptr;
740	#endif	994	#endif
741		995
		996	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	997	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	998	ev_signal_stop (EV_A_ &childev);
		999	#endif
744		1000
745	ev_ref (EV_A); /* signal watcher */	1001	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	1002	ev_io_stop (EV_A_ &sigev);
747		1003
748	close (sigpipe [0]); sigpipe [0] = 0;	1004	close (sigpipe [0]); sigpipe [0] = 0;
…		…
753		1009
754	void	1010	void
755	ev_default_fork (void)	1011	ev_default_fork (void)
756	{	1012	{
757	#if EV_MULTIPLICITY	1013	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	1014	struct ev_loop *loop = ev_default_loop_ptr;
759	#endif	1015	#endif
760		1016
761	loop_fork (EV_A);	1017	if (method)
762		1018	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	1019	}
771		1020
772	/*****************************************************************************/	1021	/*****************************************************************************/
773		1022
774	static void	1023	static int
		1024	any_pending (EV_P)
		1025	{
		1026	int pri;
		1027
		1028	for (pri = NUMPRI; pri--; )
		1029	if (pendingcnt [pri])
		1030	return 1;
		1031
		1032	return 0;
		1033	}
		1034
		1035	inline void
775	call_pending (EV_P)	1036	call_pending (EV_P)
776	{	1037	{
777	int pri;	1038	int pri;
778		1039
779	for (pri = NUMPRI; pri--; )	1040	for (pri = NUMPRI; pri--; )
780	while (pendingcnt [pri])	1041	while (pendingcnt [pri])
781	{	1042	{
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1043	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		1044
784	if (p->w)	1045	if (expect_true (p->w))
785	{	1046	{
786	p->w->pending = 0;	1047	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	1048	EV_CB_INVOKE (p->w, p->events);
788	}	1049	}
789	}	1050	}
790	}	1051	}
791		1052
792	static void	1053	inline void
793	timers_reify (EV_P)	1054	timers_reify (EV_P)
794	{	1055	{
795	while (timercnt && timers [0]->at <= mn_now)	1056	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	1057	{
797	struct ev_timer *w = timers [0];	1058	struct ev_timer *w = timers [0];
798		1059
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1060	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		1061
801	/* first reschedule or stop timer */	1062	/* first reschedule or stop timer */
802	if (w->repeat)	1063	if (w->repeat)
803	{	1064	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1065	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1066
805	w->at = mn_now + w->repeat;	1067	((WT)w)->at += w->repeat;
		1068	if (((WT)w)->at < mn_now)
		1069	((WT)w)->at = mn_now;
		1070
806	downheap ((WT *)timers, timercnt, 0);	1071	downheap ((WT *)timers, timercnt, 0);
807	}	1072	}
808	else	1073	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1074	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1075
811	event (EV_A_ (W)w, EV_TIMEOUT);	1076	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1077	}
813	}	1078	}
814		1079
815	static void	1080	#if EV_PERIODICS
		1081	inline void
816	periodics_reify (EV_P)	1082	periodics_reify (EV_P)
817	{	1083	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1084	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1085	{
820	struct ev_periodic *w = periodics [0];	1086	struct ev_periodic *w = periodics [0];
821		1087
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1088	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1089
824	/* first reschedule or stop timer */	1090	/* first reschedule or stop timer */
825	if (w->interval)	1091	if (w->reschedule_cb)
826	{	1092	{
		1093	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1094	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1095	downheap ((WT *)periodics, periodiccnt, 0);
		1096	}
		1097	else if (w->interval)
		1098	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1099	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
828	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1100	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
829	downheap ((WT *)periodics, periodiccnt, 0);	1101	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1102	}
831	else	1103	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1104	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1105
834	event (EV_A_ (W)w, EV_PERIODIC);	1106	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1107	}
836	}	1108	}
837		1109
838	static void	1110	static void
839	periodics_reschedule (EV_P)	1111	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1115	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1116	for (i = 0; i < periodiccnt; ++i)
845	{	1117	{
846	struct ev_periodic *w = periodics [i];	1118	struct ev_periodic *w = periodics [i];
847		1119
		1120	if (w->reschedule_cb)
		1121	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1122	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1123	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
851
852	if (fabs (diff) >= 1e-4)
853	{
854	ev_periodic_stop (EV_A_ w);
855	ev_periodic_start (EV_A_ w);
856
857	i = 0; /* restart loop, inefficient, but time jumps should be rare */
858	}
859	}
860	}	1124	}
		1125
		1126	/* now rebuild the heap */
		1127	for (i = periodiccnt >> 1; i--; )
		1128	downheap ((WT *)periodics, periodiccnt, i);
861	}	1129	}
		1130	#endif
862		1131
863	inline int	1132	inline int
864	time_update_monotonic (EV_P)	1133	time_update_monotonic (EV_P)
865	{	1134	{
866	mn_now = get_clock ();	1135	mn_now = get_clock ();
867		1136
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1137	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1138	{
870	rt_now = rtmn_diff + mn_now;	1139	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1140	return 0;
872	}	1141	}
873	else	1142	else
874	{	1143	{
875	now_floor = mn_now;	1144	now_floor = mn_now;
876	rt_now = ev_time ();	1145	ev_rt_now = ev_time ();
877	return 1;	1146	return 1;
878	}	1147	}
879	}	1148	}
880		1149
881	static void	1150	inline void
882	time_update (EV_P)	1151	time_update (EV_P)
883	{	1152	{
884	int i;	1153	int i;
885		1154
886	#if EV_USE_MONOTONIC	1155	#if EV_USE_MONOTONIC
…		…
890	{	1159	{
891	ev_tstamp odiff = rtmn_diff;	1160	ev_tstamp odiff = rtmn_diff;
892		1161
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1162	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1163	{
895	rtmn_diff = rt_now - mn_now;	1164	rtmn_diff = ev_rt_now - mn_now;
896		1165
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1166	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1167	return; /* all is well */
899		1168
900	rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1170	mn_now = get_clock ();
902	now_floor = mn_now;	1171	now_floor = mn_now;
903	}	1172	}
904		1173
		1174	# if EV_PERIODICS
905	periodics_reschedule (EV_A);	1175	periodics_reschedule (EV_A);
		1176	# endif
906	/* no timer adjustment, as the monotonic clock doesn't jump */	1177	/* no timer adjustment, as the monotonic clock doesn't jump */
907	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1178	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
908	}	1179	}
909	}	1180	}
910	else	1181	else
911	#endif	1182	#endif
912	{	1183	{
913	rt_now = ev_time ();	1184	ev_rt_now = ev_time ();
914		1185
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1186	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1187	{
		1188	#if EV_PERIODICS
917	periodics_reschedule (EV_A);	1189	periodics_reschedule (EV_A);
		1190	#endif
918		1191
919	/* adjust timers. this is easy, as the offset is the same for all */	1192	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1193	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1194	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1195	}
923		1196
924	mn_now = rt_now;	1197	mn_now = ev_rt_now;
925	}	1198	}
926	}	1199	}
927		1200
928	void	1201	void
929	ev_ref (EV_P)	1202	ev_ref (EV_P)
…		…
943	ev_loop (EV_P_ int flags)	1216	ev_loop (EV_P_ int flags)
944	{	1217	{
945	double block;	1218	double block;
946	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1219	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
947		1220
948	do	1221	while (activecnt)
949	{	1222	{
950	/* queue check watchers (and execute them) */	1223	/* queue check watchers (and execute them) */
951	if (expect_false (preparecnt))	1224	if (expect_false (preparecnt))
952	{	1225	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1226	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1227	call_pending (EV_A);
955	}	1228	}
956		1229
		1230	/* we might have forked, so reify kernel state if necessary */
		1231	if (expect_false (postfork))
		1232	loop_fork (EV_A);
		1233
957	/* update fd-related kernel structures */	1234	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1235	fd_reify (EV_A);
959		1236
960	/* calculate blocking time */	1237	/* calculate blocking time */
961		1238
962	/* we only need this for !monotonic clockor timers, but as we basically	1239	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1240	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1241	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1242	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1243	time_update_monotonic (EV_A);
967	else	1244	else
968	#endif	1245	#endif
969	{	1246	{
970	rt_now = ev_time ();	1247	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1248	mn_now = ev_rt_now;
972	}	1249	}
973		1250
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1251	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1252	block = 0.;
976	else	1253	else
977	{	1254	{
978	block = MAX_BLOCKTIME;	1255	block = MAX_BLOCKTIME;
979		1256
980	if (timercnt)	1257	if (timercnt)
981	{	1258	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1259	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
983	if (block > to) block = to;	1260	if (block > to) block = to;
984	}	1261	}
985		1262
		1263	#if EV_PERIODICS
986	if (periodiccnt)	1264	if (periodiccnt)
987	{	1265	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1266	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
989	if (block > to) block = to;	1267	if (block > to) block = to;
990	}	1268	}
		1269	#endif
991		1270
992	if (block < 0.) block = 0.;	1271	if (expect_false (block < 0.)) block = 0.;
993	}	1272	}
994		1273
995	method_poll (EV_A_ block);	1274	method_poll (EV_A_ block);
996		1275
997	/* update rt_now, do magic */	1276	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1277	time_update (EV_A);
999		1278
1000	/* queue pending timers and reschedule them */	1279	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1280	timers_reify (EV_A); /* relative timers called last */
		1281	#if EV_PERIODICS
1002	periodics_reify (EV_A); /* absolute timers called first */	1282	periodics_reify (EV_A); /* absolute timers called first */
		1283	#endif
1003		1284
1004	/* queue idle watchers unless io or timers are pending */	1285	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1286	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1287	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1288
1008	/* queue check watchers, to be executed first */	1289	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1290	if (expect_false (checkcnt))
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1291	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1011		1292
1012	call_pending (EV_A);	1293	call_pending (EV_A);
		1294
		1295	if (expect_false (loop_done))
		1296	break;
1013	}	1297	}
1014	while (activecnt && !loop_done);
1015		1298
1016	if (loop_done != 2)	1299	if (loop_done != 2)
1017	loop_done = 0;	1300	loop_done = 0;
1018	}	1301	}
1019		1302
…		…
1079	void	1362	void
1080	ev_io_start (EV_P_ struct ev_io *w)	1363	ev_io_start (EV_P_ struct ev_io *w)
1081	{	1364	{
1082	int fd = w->fd;	1365	int fd = w->fd;
1083		1366
1084	if (ev_is_active (w))	1367	if (expect_false (ev_is_active (w)))
1085	return;	1368	return;
1086		1369
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1370	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1371
1089	ev_start (EV_A_ (W)w, 1);	1372	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1373	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1374	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1375
1093	fd_change (EV_A_ fd);	1376	fd_change (EV_A_ fd);
1094	}	1377	}
1095		1378
1096	void	1379	void
1097	ev_io_stop (EV_P_ struct ev_io *w)	1380	ev_io_stop (EV_P_ struct ev_io *w)
1098	{	1381	{
1099	ev_clear_pending (EV_A_ (W)w);	1382	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1383	if (expect_false (!ev_is_active (w)))
1101	return;	1384	return;
		1385
		1386	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1102		1387
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1388	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1389	ev_stop (EV_A_ (W)w);
1105		1390
1106	fd_change (EV_A_ w->fd);	1391	fd_change (EV_A_ w->fd);
1107	}	1392	}
1108		1393
1109	void	1394	void
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1395	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1396	{
1112	if (ev_is_active (w))	1397	if (expect_false (ev_is_active (w)))
1113	return;	1398	return;
1114		1399
1115	w->at += mn_now;	1400	((WT)w)->at += mn_now;
1116		1401
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1402	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1403
1119	ev_start (EV_A_ (W)w, ++timercnt);	1404	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1405	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1121	timers [timercnt - 1] = w;	1406	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1407	upheap ((WT *)timers, timercnt - 1);
		1408
		1409	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1410	}
1124		1411
1125	void	1412	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1413	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1414	{
1128	ev_clear_pending (EV_A_ (W)w);	1415	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1416	if (expect_false (!ev_is_active (w)))
1130	return;	1417	return;
1131		1418
		1419	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1420
1132	if (w->active < timercnt--)	1421	if (expect_true (((W)w)->active < timercnt--))
1133	{	1422	{
1134	timers [w->active - 1] = timers [timercnt];	1423	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1424	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1425	}
1137		1426
1138	w->at = w->repeat;	1427	((WT)w)->at -= mn_now;
1139		1428
1140	ev_stop (EV_A_ (W)w);	1429	ev_stop (EV_A_ (W)w);
1141	}	1430	}
1142		1431
1143	void	1432	void
…		…
1145	{	1434	{
1146	if (ev_is_active (w))	1435	if (ev_is_active (w))
1147	{	1436	{
1148	if (w->repeat)	1437	if (w->repeat)
1149	{	1438	{
1150	w->at = mn_now + w->repeat;	1439	((WT)w)->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1440	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1441	}
1153	else	1442	else
1154	ev_timer_stop (EV_A_ w);	1443	ev_timer_stop (EV_A_ w);
1155	}	1444	}
1156	else if (w->repeat)	1445	else if (w->repeat)
		1446	{
		1447	w->at = w->repeat;
1157	ev_timer_start (EV_A_ w);	1448	ev_timer_start (EV_A_ w);
		1449	}
1158	}	1450	}
1159		1451
		1452	#if EV_PERIODICS
1160	void	1453	void
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1454	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1455	{
1163	if (ev_is_active (w))	1456	if (expect_false (ev_is_active (w)))
1164	return;	1457	return;
1165		1458
		1459	if (w->reschedule_cb)
		1460	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1461	else if (w->interval)
		1462	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1463	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1167
1168	/* this formula differs from the one in periodic_reify because we do not always round up */	1464	/* this formula differs from the one in periodic_reify because we do not always round up */
1169	if (w->interval)
1170	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1465	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1466	}
1171		1467
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1468	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1469	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1174	periodics [periodiccnt - 1] = w;	1470	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1471	upheap ((WT *)periodics, periodiccnt - 1);
		1472
		1473	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1474	}
1177		1475
1178	void	1476	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1477	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1478	{
1181	ev_clear_pending (EV_A_ (W)w);	1479	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1480	if (expect_false (!ev_is_active (w)))
1183	return;	1481	return;
1184		1482
		1483	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1484
1185	if (w->active < periodiccnt--)	1485	if (expect_true (((W)w)->active < periodiccnt--))
1186	{	1486	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1487	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1488	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1489	}
1190		1490
1191	ev_stop (EV_A_ (W)w);	1491	ev_stop (EV_A_ (W)w);
1192	}	1492	}
1193		1493
1194	void	1494	void
		1495	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1496	{
		1497	/* TODO: use adjustheap and recalculation */
		1498	ev_periodic_stop (EV_A_ w);
		1499	ev_periodic_start (EV_A_ w);
		1500	}
		1501	#endif
		1502
		1503	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1504	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1505	{
1197	if (ev_is_active (w))	1506	if (expect_false (ev_is_active (w)))
1198	return;	1507	return;
1199		1508
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1509	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1510	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1202	idles [idlecnt - 1] = w;	1511	idles [idlecnt - 1] = w;
1203	}	1512	}
1204		1513
1205	void	1514	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1515	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1516	{
1208	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1209	if (ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1210	return;	1519	return;
1211		1520
1212	idles [w->active - 1] = idles [--idlecnt];	1521	idles [((W)w)->active - 1] = idles [--idlecnt];
1213	ev_stop (EV_A_ (W)w);	1522	ev_stop (EV_A_ (W)w);
1214	}	1523	}
1215		1524
1216	void	1525	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1526	ev_prepare_start (EV_P_ struct ev_prepare *w)
1218	{	1527	{
1219	if (ev_is_active (w))	1528	if (expect_false (ev_is_active (w)))
1220	return;	1529	return;
1221		1530
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1531	ev_start (EV_A_ (W)w, ++preparecnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1532	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1224	prepares [preparecnt - 1] = w;	1533	prepares [preparecnt - 1] = w;
1225	}	1534	}
1226		1535
1227	void	1536	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1537	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1229	{	1538	{
1230	ev_clear_pending (EV_A_ (W)w);	1539	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1540	if (expect_false (!ev_is_active (w)))
1232	return;	1541	return;
1233		1542
1234	prepares [w->active - 1] = prepares [--preparecnt];	1543	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);	1544	ev_stop (EV_A_ (W)w);
1236	}	1545	}
1237		1546
1238	void	1547	void
1239	ev_check_start (EV_P_ struct ev_check *w)	1548	ev_check_start (EV_P_ struct ev_check *w)
1240	{	1549	{
1241	if (ev_is_active (w))	1550	if (expect_false (ev_is_active (w)))
1242	return;	1551	return;
1243		1552
1244	ev_start (EV_A_ (W)w, ++checkcnt);	1553	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );	1554	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1246	checks [checkcnt - 1] = w;	1555	checks [checkcnt - 1] = w;
1247	}	1556	}
1248		1557
1249	void	1558	void
1250	ev_check_stop (EV_P_ struct ev_check *w)	1559	ev_check_stop (EV_P_ struct ev_check *w)
1251	{	1560	{
1252	ev_clear_pending (EV_A_ (W)w);	1561	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))	1562	if (expect_false (!ev_is_active (w)))
1254	return;	1563	return;
1255		1564
1256	checks [w->active - 1] = checks [--checkcnt];	1565	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1566	ev_stop (EV_A_ (W)w);
1258	}	1567	}
1259		1568
1260	#ifndef SA_RESTART	1569	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1570	# define SA_RESTART 0
…		…
1263		1572
1264	void	1573	void
1265	ev_signal_start (EV_P_ struct ev_signal *w)	1574	ev_signal_start (EV_P_ struct ev_signal *w)
1266	{	1575	{
1267	#if EV_MULTIPLICITY	1576	#if EV_MULTIPLICITY
1268	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1577	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1269	#endif	1578	#endif
1270	if (ev_is_active (w))	1579	if (expect_false (ev_is_active (w)))
1271	return;	1580	return;
1272		1581
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1582	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1583
1275	ev_start (EV_A_ (W)w, 1);	1584	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1585	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1586	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1587
1279	if (!w->next)	1588	if (!((WL)w)->next)
1280	{	1589	{
		1590	#if _WIN32
		1591	signal (w->signum, sighandler);
		1592	#else
1281	struct sigaction sa;	1593	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1594	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1595	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1596	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1597	sigaction (w->signum, &sa, 0);
		1598	#endif
1286	}	1599	}
1287	}	1600	}
1288		1601
1289	void	1602	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1603	ev_signal_stop (EV_P_ struct ev_signal *w)
1291	{	1604	{
1292	ev_clear_pending (EV_A_ (W)w);	1605	ev_clear_pending (EV_A_ (W)w);
1293	if (!ev_is_active (w))	1606	if (expect_false (!ev_is_active (w)))
1294	return;	1607	return;
1295		1608
1296	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1609	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1297	ev_stop (EV_A_ (W)w);	1610	ev_stop (EV_A_ (W)w);
1298		1611
…		…
1302		1615
1303	void	1616	void
1304	ev_child_start (EV_P_ struct ev_child *w)	1617	ev_child_start (EV_P_ struct ev_child *w)
1305	{	1618	{
1306	#if EV_MULTIPLICITY	1619	#if EV_MULTIPLICITY
1307	assert (("child watchers are only supported in the default loop", loop == default_loop));	1620	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1308	#endif	1621	#endif
1309	if (ev_is_active (w))	1622	if (expect_false (ev_is_active (w)))
1310	return;	1623	return;
1311		1624
1312	ev_start (EV_A_ (W)w, 1);	1625	ev_start (EV_A_ (W)w, 1);
1313	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1626	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1314	}	1627	}
1315		1628
1316	void	1629	void
1317	ev_child_stop (EV_P_ struct ev_child *w)	1630	ev_child_stop (EV_P_ struct ev_child *w)
1318	{	1631	{
1319	ev_clear_pending (EV_A_ (W)w);	1632	ev_clear_pending (EV_A_ (W)w);
1320	if (ev_is_active (w))	1633	if (expect_false (!ev_is_active (w)))
1321	return;	1634	return;
1322		1635
1323	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1636	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1324	ev_stop (EV_A_ (W)w);	1637	ev_stop (EV_A_ (W)w);
1325	}	1638	}
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1653	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1654	void *arg = once->arg;
1342		1655
1343	ev_io_stop (EV_A_ &once->io);	1656	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1657	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1658	ev_free (once);
1346		1659
1347	cb (revents, arg);	1660	cb (revents, arg);
1348	}	1661	}
1349		1662
1350	static void	1663	static void
…		…
1360	}	1673	}
1361		1674
1362	void	1675	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1676	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1677	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1678	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1679
1367	if (!once)	1680	if (expect_false (!once))
		1681	{
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1682	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1683	return;
1370	{	1684	}
		1685
1371	once->cb = cb;	1686	once->cb = cb;
1372	once->arg = arg;	1687	once->arg = arg;
1373		1688
1374	ev_watcher_init (&once->io, once_cb_io);	1689	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1690	if (fd >= 0)
1376	{	1691	{
1377	ev_io_set (&once->io, fd, events);	1692	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1693	ev_io_start (EV_A_ &once->io);
1379	}	1694	}
1380		1695
1381	ev_watcher_init (&once->to, once_cb_to);	1696	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1697	if (timeout >= 0.)
1383	{	1698	{
1384	ev_timer_set (&once->to, timeout, 0.);	1699	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1700	ev_timer_start (EV_A_ &once->to);
1386	}
1387	}	1701	}
1388	}	1702	}
1389		1703
		1704	#ifdef __cplusplus
		1705	}
		1706	#endif
		1707

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Comparing libev/ev.c (file contents): Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs. Revision 1.128 by root, Thu Nov 22 12:28:27 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.128 by root, Thu Nov 22 12:28:27 2007 UTC