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

Comparing libev/ev.c (file contents):
Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 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"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		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
		53	# endif
		54
		55	# ifndef EV_USE_SELECT
		56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
		61	# endif
		62
		63	# ifndef EV_USE_POLL
		64	# if HAVE_POLL && HAVE_POLL_H
		65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
		69	# endif
		70
		71	# ifndef EV_USE_EPOLL
		72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
		77	# endif
		78
		79	# ifndef EV_USE_KQUEUE
		80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		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
		93	# endif
		94
33	#endif	95	#endif
34		96
35	#include <math.h>	97	#include <math.h>
36	#include <stdlib.h>	98	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	99	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	100	#include <stddef.h>
41		101
42	#include <stdio.h>	102	#include <stdio.h>
43		103
44	#include <assert.h>	104	#include <assert.h>
45	#include <errno.h>	105	#include <errno.h>
46	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
47	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
48	# 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
49	#endif	120	# endif
50	#include <sys/time.h>	121	#endif
51	#include <time.h>
52		122
53	/**/	123	/**/
54		124
55	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
56	# 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
57	#endif	131	#endif
58		132
59	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
61	#endif	135	#endif
62		136
63	#ifndef EV_USEV_POLL	137	#ifndef EV_USE_POLL
64	# define EV_USEV_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
65	#endif	143	#endif
66		144
67	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
69	#endif	147	#endif
70		148
71	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
73	#endif	151	#endif
74		152
75	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
77	#endif	155	#endif
78		156
79	/**/	157	/**/
		158
		159	/* darwin simply cannot be helped */
		160	#ifdef __APPLE__
		161	# undef EV_USE_POLL
		162	# undef EV_USE_KQUEUE
		163	#endif
80		164
81	#ifndef CLOCK_MONOTONIC	165	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	166	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	167	# define EV_USE_MONOTONIC 0
84	#endif	168	#endif
…		…
86	#ifndef CLOCK_REALTIME	170	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	171	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	172	# define EV_USE_REALTIME 0
89	#endif	173	#endif
90		174
		175	#if EV_SELECT_IS_WINSOCKET
		176	# include <winsock.h>
		177	#endif
		178
91	/**/	179	/**/
92		180
93	#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) */
94	#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) */
95	#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 */
96	/#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 */
97		185
		186	#ifdef EV_H
		187	# include EV_H
		188	#else
98	#include "ev.h"	189	# include "ev.h"
		190	#endif
99		191
100	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	194	# define inline static inline
103	#else	195	#else
104	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
105	# define inline static	197	# define inline static
106	#endif	198	#endif
107		199
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
110		202
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
114	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
117		212
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		214
		215	#ifdef _WIN32
		216	# include "ev_win32.c"
		217	#endif
		218
120	/*****************************************************************************/	219	/*****************************************************************************/
121		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
122	typedef struct	269	typedef struct
123	{	270	{
124	struct ev_watcher_list *head;	271	WL head;
125	unsigned char events;	272	unsigned char events;
126	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
127	} ANFD;	277	} ANFD;
128		278
129	typedef struct	279	typedef struct
130	{	280	{
131	W w;	281	W w;
132	int events;	282	int events;
133	} ANPENDING;	283	} ANPENDING;
134		284
135	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
136		286
137	struct ev_loop	287	struct ev_loop
138	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
139	# define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
140	# include "ev_vars.h"	292	#include "ev_vars.h"
141	};
142	# undef VAR	293	#undef VAR
		294	};
143	# 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;
144		299
145	#else	300	#else
146		301
		302	ev_tstamp ev_rt_now;
147	# define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
148	# include "ev_vars.h"	304	#include "ev_vars.h"
149	# undef VAR	305	#undef VAR
		306
		307	static int ev_default_loop_ptr;
150		308
151	#endif	309	#endif
152		310
153	/*****************************************************************************/	311	/*****************************************************************************/
154		312
155	inline ev_tstamp	313	ev_tstamp
156	ev_time (void)	314	ev_time (void)
157	{	315	{
158	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
159	struct timespec ts;	317	struct timespec ts;
160	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
179	#endif	337	#endif
180		338
181	return ev_time ();	339	return ev_time ();
182	}	340	}
183		341
		342	#if EV_MULTIPLICITY
184	ev_tstamp	343	ev_tstamp
185	ev_now (EV_P)	344	ev_now (EV_P)
186	{	345	{
187	return rt_now;	346	return ev_rt_now;
188	}	347	}
		348	#endif
189		349
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
191		351
192	#define array_needsize(base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
194	{ \	354	{ \
195	int newcnt = cur; \	355	int newcnt = cur; \
196	do \	356	do \
197	{ \	357	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	358	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	359	} \
200	while ((cnt) > newcnt); \	360	while ((cnt) > newcnt); \
201	\	361	\
202	base = realloc (base, sizeof (base) (newcnt)); \	362	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	363	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	364	cur = newcnt; \
205	}	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;
206		377
207	/*****************************************************************************/	378	/*****************************************************************************/
208		379
209	static void	380	static void
210	anfds_init (ANFD *base, int count)	381	anfds_init (ANFD *base, int count)
…		…
217		388
218	++base;	389	++base;
219	}	390	}
220	}	391	}
221		392
222	static void	393	void
223	event (EV_P_ W w, int events)	394	ev_feed_event (EV_P_ void *w, int revents)
224	{	395	{
225	if (w->pending)	396	W w_ = (W)w;
		397
		398	if (expect_false (w_->pending))
226	{	399	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	401	return;
229	}	402	}
230		403
231	w->pending = ++pendingcnt [ABSPRI (w)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	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);
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	408	}
236		409
237	static void	410	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	411	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	412	{
240	int i;	413	int i;
241		414
242	for (i = 0; i < eventcnt; ++i)	415	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	416	ev_feed_event (EV_A_ events [i], type);
244	}	417	}
245		418
246	static void	419	inline void
247	fd_event (EV_P_ int fd, int events)	420	fd_event (EV_P_ int fd, int revents)
248	{	421	{
249	ANFD *anfd = anfds + fd;	422	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	423	struct ev_io *w;
251		424
252	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)
253	{	426	{
254	int ev = w->events & events;	427	int ev = w->events & revents;
255		428
256	if (ev)	429	if (ev)
257	event (EV_A_ (W)w, ev);	430	ev_feed_event (EV_A_ (W)w, ev);
258	}	431	}
		432	}
		433
		434	void
		435	ev_feed_fd_event (EV_P_ int fd, int revents)
		436	{
		437	fd_event (EV_A_ fd, revents);
259	}	438	}
260		439
261	/*****************************************************************************/	440	/*****************************************************************************/
262		441
263	static void	442	inline void
264	fd_reify (EV_P)	443	fd_reify (EV_P)
265	{	444	{
266	int i;	445	int i;
267		446
268	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
274	int events = 0;	453	int events = 0;
275		454
276	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)
277	events \|= w->events;	456	events \|= w->events;
278		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
279	anfd->reify = 0;	467	anfd->reify = 0;
280		468
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	470	anfd->events = events;
285	}
286	}	471	}
287		472
288	fdchangecnt = 0;	473	fdchangecnt = 0;
289	}	474	}
290		475
291	static void	476	static void
292	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
293	{	478	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	479	if (expect_false (anfds [fd].reify))
295	return;	480	return;
296		481
297	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
298		483
299	++fdchangecnt;	484	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
301	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
302	}	487	}
303		488
304	static void	489	static void
305	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	492	struct ev_io *w;
308		493
309	while ((w = (struct ev_io *)anfds [fd].head))	494	while ((w = (struct ev_io *)anfds [fd].head))
310	{	495	{
311	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
312	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);
313	}	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
314	}	509	}
315		510
316	/* called on EBADF to verify fds */	511	/* called on EBADF to verify fds */
317	static void	512	static void
318	fd_ebadf (EV_P)	513	fd_ebadf (EV_P)
319	{	514	{
320	int fd;	515	int fd;
321		516
322	for (fd = 0; fd < anfdmax; ++fd)	517	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	518	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	519	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	520	fd_kill (EV_A_ fd);
326	}	521	}
327		522
328	/* 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 */
329	static void	524	static void
330	fd_enomem (EV_P)	525	fd_enomem (EV_P)
331	{	526	{
332	int fd = anfdmax;	527	int fd;
333		528
334	while (fd--)	529	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	530	if (anfds [fd].events)
336	{	531	{
337	close (fd);
338	fd_kill (EV_A_ fd);	532	fd_kill (EV_A_ fd);
339	return;	533	return;
340	}	534	}
341	}	535	}
342		536
343	/* 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 */
344	static void	538	static void
345	fd_rearm_all (EV_P)	539	fd_rearm_all (EV_P)
346	{	540	{
347	int fd;	541	int fd;
348		542
349	/* this should be highly optimised to not do anything but set a flag */	543	/* this should be highly optimised to not do anything but set a flag */
350	for (fd = 0; fd < anfdmax; ++fd)	544	for (fd = 0; fd < anfdmax; ++fd)
351	if (anfds [fd].events)	545	if (anfds [fd].events)
352	{	546	{
353	anfds [fd].events = 0;	547	anfds [fd].events = 0;
354	fd_change (fd);	548	fd_change (EV_A_ fd);
355	}	549	}
356	}	550	}
357		551
358	/*****************************************************************************/	552	/*****************************************************************************/
359		553
…		…
363	WT w = heap [k];	557	WT w = heap [k];
364		558
365	while (k && heap [k >> 1]->at > w->at)	559	while (k && heap [k >> 1]->at > w->at)
366	{	560	{
367	heap [k] = heap [k >> 1];	561	heap [k] = heap [k >> 1];
368	heap [k]->active = k + 1;	562	((W)heap [k])->active = k + 1;
369	k >>= 1;	563	k >>= 1;
370	}	564	}
371		565
372	heap [k] = w;	566	heap [k] = w;
373	heap [k]->active = k + 1;	567	((W)heap [k])->active = k + 1;
374		568
375	}	569	}
376		570
377	static void	571	static void
378	downheap (WT *heap, int N, int k)	572	downheap (WT *heap, int N, int k)
…		…
388		582
389	if (w->at <= heap [j]->at)	583	if (w->at <= heap [j]->at)
390	break;	584	break;
391		585
392	heap [k] = heap [j];	586	heap [k] = heap [j];
393	heap [k]->active = k + 1;	587	((W)heap [k])->active = k + 1;
394	k = j;	588	k = j;
395	}	589	}
396		590
397	heap [k] = w;	591	heap [k] = w;
398	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);
399	}	600	}
400		601
401	/*****************************************************************************/	602	/*****************************************************************************/
402		603
403	typedef struct	604	typedef struct
404	{	605	{
405	struct ev_watcher_list *head;	606	WL head;
406	sig_atomic_t volatile gotsig;	607	sig_atomic_t volatile gotsig;
407	} ANSIG;	608	} ANSIG;
408		609
409	static ANSIG *signals;	610	static ANSIG *signals;
410	static int signalmax;	611	static int signalmax;
411		612
412	static int sigpipe [2];	613	static int sigpipe [2];
413	static sig_atomic_t volatile gotsig;	614	static sig_atomic_t volatile gotsig;
		615	static struct ev_io sigev;
414		616
415	static void	617	static void
416	signals_init (ANSIG *base, int count)	618	signals_init (ANSIG *base, int count)
417	{	619	{
418	while (count--)	620	while (count--)
…		…
425	}	627	}
426		628
427	static void	629	static void
428	sighandler (int signum)	630	sighandler (int signum)
429	{	631	{
		632	#if _WIN32
		633	signal (signum, sighandler);
		634	#endif
		635
430	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
431		637
432	if (!gotsig)	638	if (!gotsig)
433	{	639	{
434	int old_errno = errno;	640	int old_errno = errno;
…		…
436	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
437	errno = old_errno;	643	errno = old_errno;
438	}	644	}
439	}	645	}
440		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
441	static void	667	static void
442	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
443	{	669	{
444	struct ev_watcher_list *w;
445	int signum;	670	int signum;
446		671
447	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
448	gotsig = 0;	673	gotsig = 0;
449		674
450	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
451	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
452	{	677	ev_feed_signal_event (EV_A_ signum + 1);
453	signals [signum].gotsig = 0;	678	}
454		679
455	for (w = signals [signum].head; w; w = w->next)	680	static void
456	event (EV_A_ (W)w, EV_SIGNAL);	681	fd_intern (int fd)
457	}	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
458	}	690	}
459		691
460	static void	692	static void
461	siginit (EV_P)	693	siginit (EV_P)
462	{	694	{
463	#ifndef WIN32	695	fd_intern (sigpipe [0]);
464	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
465	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
466
467	/* rather than sort out wether we really need nb, set it */
468	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
469	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
470	#endif
471		697
472	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
473	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
474	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
475	}	701	}
476		702
477	/*****************************************************************************/	703	/*****************************************************************************/
478		704
		705	static struct ev_child *childs [PID_HASHSIZE];
		706
479	#ifndef WIN32	707	#ifndef _WIN32
		708
		709	static struct ev_signal childev;
480		710
481	#ifndef WCONTINUED	711	#ifndef WCONTINUED
482	# define WCONTINUED 0	712	# define WCONTINUED 0
483	#endif	713	#endif
484		714
…		…
488	struct ev_child *w;	718	struct ev_child *w;
489		719
490	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)
491	if (w->pid == pid \|\| !w->pid)	721	if (w->pid == pid \|\| !w->pid)
492	{	722	{
493	w->priority = sw->priority; /* need to do it now */	723	ev_priority (w) = ev_priority (sw); /* need to do it now */
494	w->rpid = pid;	724	w->rpid = pid;
495	w->rstatus = status;	725	w->rstatus = status;
496	event (EV_A_ (W)w, EV_CHILD);	726	ev_feed_event (EV_A_ (W)w, EV_CHILD);
497	}	727	}
498	}	728	}
499		729
500	static void	730	static void
501	childcb (EV_P_ struct ev_signal *sw, int revents)	731	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
503	int pid, status;	733	int pid, status;
504		734
505	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	735	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
506	{	736	{
507	/* 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 */
508	event (EV_A_ (W)sw, EV_SIGNAL);	738	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
509		739
510	child_reap (EV_A_ sw, pid, pid, status);	740	child_reap (EV_A_ sw, pid, pid, status);
511	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 */
512	}	742	}
513	}	743	}
514		744
515	#endif	745	#endif
516		746
517	/*****************************************************************************/	747	/*****************************************************************************/
518		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
519	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
520	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
521	#endif	754	#endif
522	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
523	# include "ev_epoll.c"	756	# include "ev_epoll.c"
524	#endif	757	#endif
525	#if EV_USEV_POLL	758	#if EV_USE_POLL
526	# include "ev_poll.c"	759	# include "ev_poll.c"
527	#endif	760	#endif
528	#if EV_USE_SELECT	761	#if EV_USE_SELECT
529	# include "ev_select.c"	762	# include "ev_select.c"
530	#endif	763	#endif
…		…
543		776
544	/* 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 */
545	static int	778	static int
546	enable_secure (void)	779	enable_secure (void)
547	{	780	{
548	#ifdef WIN32	781	#ifdef _WIN32
549	return 0;	782	return 0;
550	#else	783	#else
551	return getuid () != geteuid ()	784	return getuid () != geteuid ()
552	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
553	#endif	786	#endif
554	}	787	}
555		788
556	int	789	unsigned int
557	ev_method (EV_P)	790	ev_method (EV_P)
558	{	791	{
559	return method;	792	return method;
560	}	793	}
561		794
562	static void	795	static void
563	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
564	{	797	{
565	if (!method)	798	if (!method)
566	{	799	{
567	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
568	{	801	{
…		…
570	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
571	have_monotonic = 1;	804	have_monotonic = 1;
572	}	805	}
573	#endif	806	#endif
574		807
575	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
576	mn_now = get_clock ();	809	mn_now = get_clock ();
577	now_floor = mn_now;	810	now_floor = mn_now;
578	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
579		812
580	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
581	if (!enable_secure () && getenv ("LIBEV_METHODS"))
582	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
583	else	815
584	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
585		818
586	method = 0;	819	method = 0;
		820	#if EV_USE_PORT
		821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		822	#endif
587	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
588	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
589	#endif	825	#endif
590	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
591	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
592	#endif	828	#endif
593	#if EV_USEV_POLL	829	#if EV_USE_POLL
594	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
595	#endif	831	#endif
596	#if EV_USE_SELECT	832	#if EV_USE_SELECT
597	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
598	#endif	834	#endif
599	}
600	}
601		835
602	void	836	ev_init (&sigev, sigcb);
		837	ev_set_priority (&sigev, EV_MAXPRI);
		838	}
		839	}
		840
		841	static void
603	loop_destroy (EV_P)	842	loop_destroy (EV_P)
604	{	843	{
		844	int i;
		845
		846	#if EV_USE_PORT
		847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		848	#endif
605	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
606	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
607	#endif	851	#endif
608	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
609	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	853	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
610	#endif	854	#endif
611	#if EV_USEV_POLL	855	#if EV_USE_POLL
612	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	856	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
613	#endif	857	#endif
614	#if EV_USE_SELECT	858	#if EV_USE_SELECT
615	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	859	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
616	#endif	860	#endif
617		861
		862	for (i = NUMPRI; i--; )
		863	array_free (pending, [i]);
		864
		865	/* have to use the microsoft-never-gets-it-right macro */
		866	array_free (fdchange, EMPTY0);
		867	array_free (timer, EMPTY0);
		868	#if EV_PERIODICS
		869	array_free (periodic, EMPTY0);
		870	#endif
		871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
		874
618	method = 0;	875	method = 0;
619	/TODO/
620	}	876	}
621		877
622	void	878	static void
623	loop_fork (EV_P)	879	loop_fork (EV_P)
624	{	880	{
625	/TODO/	881	#if EV_USE_PORT
		882	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		883	#endif
		884	#if EV_USE_KQUEUE
		885	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		886	#endif
626	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
627	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
628	#endif	889	#endif
629	#if EV_USE_KQUEUE	890
630	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	891	if (ev_is_active (&sigev))
631	#endif	892	{
		893	/* default loop */
		894
		895	ev_ref (EV_A);
		896	ev_io_stop (EV_A_ &sigev);
		897	close (sigpipe [0]);
		898	close (sigpipe [1]);
		899
		900	while (pipe (sigpipe))
		901	syserr ("(libev) error creating pipe");
		902
		903	siginit (EV_A);
		904	}
		905
		906	postfork = 0;
632	}	907	}
633		908
634	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
635	struct ev_loop *	910	struct ev_loop *
636	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
637	{	912	{
638	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	913	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
639		914
		915	memset (loop, 0, sizeof (struct ev_loop));
		916
640	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
641		918
642	if (ev_methods (EV_A))	919	if (ev_method (EV_A))
643	return loop;	920	return loop;
644		921
645	return 0;	922	return 0;
646	}	923	}
647		924
648	void	925	void
649	ev_loop_destroy (EV_P)	926	ev_loop_destroy (EV_P)
650	{	927	{
651	loop_destroy (EV_A);	928	loop_destroy (EV_A);
652	free (loop);	929	ev_free (loop);
653	}	930	}
654		931
655	void	932	void
656	ev_loop_fork (EV_P)	933	ev_loop_fork (EV_P)
657	{	934	{
658	loop_fork (EV_A);	935	postfork = 1;
659	}	936	}
660		937
661	#endif	938	#endif
662		939
663	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
664	struct ev_loop default_loop_struct;
665	static struct ev_loop *default_loop;
666
667	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
668	#else	943	#else
669	static int default_loop;
670
671	int	944	int
		945	ev_default_loop (unsigned int flags)
672	#endif	946	#endif
673	ev_default_loop (int methods)
674	{	947	{
675	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
676	if (pipe (sigpipe))	949	if (pipe (sigpipe))
677	return 0;	950	return 0;
678		951
679	if (!default_loop)	952	if (!ev_default_loop_ptr)
680	{	953	{
681	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
682	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
683	#else	956	#else
684	default_loop = 1;	957	ev_default_loop_ptr = 1;
685	#endif	958	#endif
686		959
687	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
688		961
689	if (ev_method (EV_A))	962	if (ev_method (EV_A))
690	{	963	{
691	ev_watcher_init (&sigev, sigcb);
692	ev_set_priority (&sigev, EV_MAXPRI);
693	siginit (EV_A);	964	siginit (EV_A);
694		965
695	#ifndef WIN32	966	#ifndef _WIN32
696	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
697	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
698	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
699	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
700	#endif	971	#endif
701	}	972	}
702	else	973	else
703	default_loop = 0;	974	ev_default_loop_ptr = 0;
704	}	975	}
705		976
706	return default_loop;	977	return ev_default_loop_ptr;
707	}	978	}
708		979
709	void	980	void
710	ev_default_destroy (void)	981	ev_default_destroy (void)
711	{	982	{
712	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
713	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
714	#endif	985	#endif
715		986
		987	#ifndef _WIN32
716	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
717	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
		990	#endif
718		991
719	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
720	ev_io_stop (EV_A_ &sigev);	993	ev_io_stop (EV_A_ &sigev);
721		994
722	close (sigpipe [0]); sigpipe [0] = 0;	995	close (sigpipe [0]); sigpipe [0] = 0;
…		…
724		997
725	loop_destroy (EV_A);	998	loop_destroy (EV_A);
726	}	999	}
727		1000
728	void	1001	void
729	ev_default_fork (EV_P)	1002	ev_default_fork (void)
730	{	1003	{
731	loop_fork (EV_A);	1004	#if EV_MULTIPLICITY
		1005	struct ev_loop *loop = ev_default_loop_ptr;
		1006	#endif
732		1007
733	ev_io_stop (EV_A_ &sigev);	1008	if (method)
734	close (sigpipe [0]);	1009	postfork = 1;
735	close (sigpipe [1]);
736	pipe (sigpipe);
737
738	ev_ref (EV_A); /* signal watcher */
739	siginit (EV_A);
740	}	1010	}
741		1011
742	/*****************************************************************************/	1012	/*****************************************************************************/
743		1013
744	static void	1014	static int
		1015	any_pending (EV_P)
		1016	{
		1017	int pri;
		1018
		1019	for (pri = NUMPRI; pri--; )
		1020	if (pendingcnt [pri])
		1021	return 1;
		1022
		1023	return 0;
		1024	}
		1025
		1026	inline void
745	call_pending (EV_P)	1027	call_pending (EV_P)
746	{	1028	{
747	int pri;	1029	int pri;
748		1030
749	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
750	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
751	{	1033	{
752	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
753		1035
754	if (p->w)	1036	if (expect_true (p->w))
755	{	1037	{
756	p->w->pending = 0;	1038	p->w->pending = 0;
757	p->w->cb (EV_A_ p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
758	}	1040	}
759	}	1041	}
760	}	1042	}
761		1043
762	static void	1044	inline void
763	timers_reify (EV_P)	1045	timers_reify (EV_P)
764	{	1046	{
765	while (timercnt && timers [0]->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
766	{	1048	{
767	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
		1050
		1051	assert (("inactive timer on timer heap detected", ev_is_active (w)));
768		1052
769	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
770	if (w->repeat)	1054	if (w->repeat)
771	{	1055	{
772	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1056	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1057
773	w->at = mn_now + w->repeat;	1058	((WT)w)->at += w->repeat;
		1059	if (((WT)w)->at < mn_now)
		1060	((WT)w)->at = mn_now;
		1061
774	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
775	}	1063	}
776	else	1064	else
777	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
778		1066
779	event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
780	}	1068	}
781	}	1069	}
782		1070
783	static void	1071	#if EV_PERIODICS
		1072	inline void
784	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
785	{	1074	{
786	while (periodiccnt && periodics [0]->at <= rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
787	{	1076	{
788	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
789		1078
		1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1080
790	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
791	if (w->interval)	1082	if (w->reschedule_cb)
792	{	1083	{
		1084	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1085	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1086	downheap ((WT *)periodics, periodiccnt, 0);
		1087	}
		1088	else if (w->interval)
		1089	{
793	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1090	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
794	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1091	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
795	downheap ((WT *)periodics, periodiccnt, 0);	1092	downheap ((WT *)periodics, periodiccnt, 0);
796	}	1093	}
797	else	1094	else
798	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1095	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
799		1096
800	event (EV_A_ (W)w, EV_PERIODIC);	1097	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
801	}	1098	}
802	}	1099	}
803		1100
804	static void	1101	static void
805	periodics_reschedule (EV_P)	1102	periodics_reschedule (EV_P)
…		…
809	/* adjust periodics after time jump */	1106	/* adjust periodics after time jump */
810	for (i = 0; i < periodiccnt; ++i)	1107	for (i = 0; i < periodiccnt; ++i)
811	{	1108	{
812	struct ev_periodic *w = periodics [i];	1109	struct ev_periodic *w = periodics [i];
813		1110
		1111	if (w->reschedule_cb)
		1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
814	if (w->interval)	1113	else if (w->interval)
815	{
816	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1114	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
817
818	if (fabs (diff) >= 1e-4)
819	{
820	ev_periodic_stop (EV_A_ w);
821	ev_periodic_start (EV_A_ w);
822
823	i = 0; /* restart loop, inefficient, but time jumps should be rare */
824	}
825	}
826	}	1115	}
		1116
		1117	/* now rebuild the heap */
		1118	for (i = periodiccnt >> 1; i--; )
		1119	downheap ((WT *)periodics, periodiccnt, i);
827	}	1120	}
		1121	#endif
828		1122
829	inline int	1123	inline int
830	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
831	{	1125	{
832	mn_now = get_clock ();	1126	mn_now = get_clock ();
833		1127
834	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1128	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
835	{	1129	{
836	rt_now = rtmn_diff + mn_now;	1130	ev_rt_now = rtmn_diff + mn_now;
837	return 0;	1131	return 0;
838	}	1132	}
839	else	1133	else
840	{	1134	{
841	now_floor = mn_now;	1135	now_floor = mn_now;
842	rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
843	return 1;	1137	return 1;
844	}	1138	}
845	}	1139	}
846		1140
847	static void	1141	inline void
848	time_update (EV_P)	1142	time_update (EV_P)
849	{	1143	{
850	int i;	1144	int i;
851		1145
852	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
856	{	1150	{
857	ev_tstamp odiff = rtmn_diff;	1151	ev_tstamp odiff = rtmn_diff;
858		1152
859	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1153	for (i = 4; --i; ) /* loop a few times, before making important decisions */
860	{	1154	{
861	rtmn_diff = rt_now - mn_now;	1155	rtmn_diff = ev_rt_now - mn_now;
862		1156
863	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1157	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
864	return; /* all is well */	1158	return; /* all is well */
865		1159
866	rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
867	mn_now = get_clock ();	1161	mn_now = get_clock ();
868	now_floor = mn_now;	1162	now_floor = mn_now;
869	}	1163	}
870		1164
		1165	# if EV_PERIODICS
871	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
872	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
873	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
874	}	1170	}
875	}	1171	}
876	else	1172	else
877	#endif	1173	#endif
878	{	1174	{
879	rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
880		1176
881	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1177	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
882	{	1178	{
		1179	#if EV_PERIODICS
883	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
884		1182
885	/* adjust timers. this is easy, as the offset is the same for all */	1183	/* adjust timers. this is easy, as the offset is the same for all */
886	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
887	timers [i]->at += rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
888	}	1186	}
889		1187
890	mn_now = rt_now;	1188	mn_now = ev_rt_now;
891	}	1189	}
892	}	1190	}
893		1191
894	void	1192	void
895	ev_ref (EV_P)	1193	ev_ref (EV_P)
…		…
909	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
910	{	1208	{
911	double block;	1209	double block;
912	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
913		1211
914	do	1212	while (activecnt)
915	{	1213	{
916	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
917	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
918	{	1216	{
919	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
920	call_pending (EV_A);	1218	call_pending (EV_A);
921	}	1219	}
922		1220
		1221	/* we might have forked, so reify kernel state if necessary */
		1222	if (expect_false (postfork))
		1223	loop_fork (EV_A);
		1224
923	/* update fd-related kernel structures */	1225	/* update fd-related kernel structures */
924	fd_reify (EV_A);	1226	fd_reify (EV_A);
925		1227
926	/* calculate blocking time */	1228	/* calculate blocking time */
927		1229
928	/* we only need this for !monotonic clockor timers, but as we basically	1230	/* we only need this for !monotonic clock or timers, but as we basically
929	always have timers, we just calculate it always */	1231	always have timers, we just calculate it always */
930	#if EV_USE_MONOTONIC	1232	#if EV_USE_MONOTONIC
931	if (expect_true (have_monotonic))	1233	if (expect_true (have_monotonic))
932	time_update_monotonic (EV_A);	1234	time_update_monotonic (EV_A);
933	else	1235	else
934	#endif	1236	#endif
935	{	1237	{
936	rt_now = ev_time ();	1238	ev_rt_now = ev_time ();
937	mn_now = rt_now;	1239	mn_now = ev_rt_now;
938	}	1240	}
939		1241
940	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1242	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
941	block = 0.;	1243	block = 0.;
942	else	1244	else
943	{	1245	{
944	block = MAX_BLOCKTIME;	1246	block = MAX_BLOCKTIME;
945		1247
946	if (timercnt)	1248	if (timercnt)
947	{	1249	{
948	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
949	if (block > to) block = to;	1251	if (block > to) block = to;
950	}	1252	}
951		1253
		1254	#if EV_PERIODICS
952	if (periodiccnt)	1255	if (periodiccnt)
953	{	1256	{
954	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
955	if (block > to) block = to;	1258	if (block > to) block = to;
956	}	1259	}
		1260	#endif
957		1261
958	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
959	}	1263	}
960		1264
961	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
962		1266
963	/* update rt_now, do magic */	1267	/* update ev_rt_now, do magic */
964	time_update (EV_A);	1268	time_update (EV_A);
965		1269
966	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
967	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
968	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
969		1275
970	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
971	if (!pendingcnt)	1277	if (idlecnt && !any_pending (EV_A))
972	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
973		1279
974	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
975	if (checkcnt)	1281	if (expect_false (checkcnt))
976	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
977		1283
978	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
979	}	1288	}
980	while (activecnt && !loop_done);
981		1289
982	if (loop_done != 2)	1290	if (loop_done != 2)
983	loop_done = 0;	1291	loop_done = 0;
984	}	1292	}
985		1293
…		…
1045	void	1353	void
1046	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1047	{	1355	{
1048	int fd = w->fd;	1356	int fd = w->fd;
1049		1357
1050	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1051	return;	1359	return;
1052		1360
1053	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1054		1362
1055	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
1056	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1364	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1057	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1365	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1058		1366
1059	fd_change (EV_A_ fd);	1367	fd_change (EV_A_ fd);
1060	}	1368	}
1061		1369
1062	void	1370	void
1063	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1064	{	1372	{
1065	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1066	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1067	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1068		1378
1069	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1070	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1071		1381
1072	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1073	}	1383	}
1074		1384
1075	void	1385	void
1076	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1077	{	1387	{
1078	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1079	return;	1389	return;
1080		1390
1081	w->at += mn_now;	1391	((WT)w)->at += mn_now;
1082		1392
1083	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1393	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1084		1394
1085	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1086	array_needsize (timers, timermax, timercnt, );	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1087	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1088	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
		1399
		1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1089	}	1401	}
1090		1402
1091	void	1403	void
1092	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1093	{	1405	{
1094	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1095	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1096	return;	1408	return;
1097		1409
		1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1411
1098	if (w->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1099	{	1413	{
1100	timers [w->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1101	downheap ((WT *)timers, timercnt, w->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1102	}	1416	}
1103		1417
1104	w->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1105		1419
1106	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1107	}	1421	}
1108		1422
1109	void	1423	void
…		…
1111	{	1425	{
1112	if (ev_is_active (w))	1426	if (ev_is_active (w))
1113	{	1427	{
1114	if (w->repeat)	1428	if (w->repeat)
1115	{	1429	{
1116	w->at = mn_now + w->repeat;	1430	((WT)w)->at = mn_now + w->repeat;
1117	downheap ((WT *)timers, timercnt, w->active - 1);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1118	}	1432	}
1119	else	1433	else
1120	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1121	}	1435	}
1122	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1123	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1124	}	1441	}
1125		1442
		1443	#if EV_PERIODICS
1126	void	1444	void
1127	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1128	{	1446	{
1129	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1130	return;	1448	return;
1131		1449
		1450	if (w->reschedule_cb)
		1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1452	else if (w->interval)
		1453	{
1132	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1454	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1133
1134	/* this formula differs from the one in periodic_reify because we do not always round up */	1455	/* this formula differs from the one in periodic_reify because we do not always round up */
1135	if (w->interval)
1136	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1456	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1457	}
1137		1458
1138	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1139	array_needsize (periodics, periodicmax, periodiccnt, );	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1140	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1141	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
		1463
		1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1142	}	1465	}
1143		1466
1144	void	1467	void
1145	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1146	{	1469	{
1147	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1148	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1149	return;	1472	return;
1150		1473
		1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1475
1151	if (w->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1152	{	1477	{
1153	periodics [w->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1154	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1155	}	1480	}
1156		1481
1157	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1158	}	1483	}
1159		1484
1160	void	1485	void
		1486	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1487	{
		1488	/* TODO: use adjustheap and recalculation */
		1489	ev_periodic_stop (EV_A_ w);
		1490	ev_periodic_start (EV_A_ w);
		1491	}
		1492	#endif
		1493
		1494	void
1161	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1162	{	1496	{
1163	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1164	return;	1498	return;
1165		1499
1166	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1167	array_needsize (idles, idlemax, idlecnt, );	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1168	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1169	}	1503	}
1170		1504
1171	void	1505	void
1172	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1173	{	1507	{
1174	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1175	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1176	return;	1510	return;
1177		1511
1178	idles [w->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1179	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1180	}	1514	}
1181		1515
1182	void	1516	void
1183	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1184	{	1518	{
1185	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1186	return;	1520	return;
1187		1521
1188	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1189	array_needsize (prepares, preparemax, preparecnt, );	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1190	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1191	}	1525	}
1192		1526
1193	void	1527	void
1194	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1195	{	1529	{
1196	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1197	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1198	return;	1532	return;
1199		1533
1200	prepares [w->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1201	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1202	}	1536	}
1203		1537
1204	void	1538	void
1205	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1206	{	1540	{
1207	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1208	return;	1542	return;
1209		1543
1210	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1211	array_needsize (checks, checkmax, checkcnt, );	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1212	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1213	}	1547	}
1214		1548
1215	void	1549	void
1216	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1217	{	1551	{
1218	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1219	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1220	return;	1554	return;
1221		1555
1222	checks [w->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1223	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1224	}	1558	}
1225		1559
1226	#ifndef SA_RESTART	1560	#ifndef SA_RESTART
1227	# define SA_RESTART 0	1561	# define SA_RESTART 0
…		…
1229		1563
1230	void	1564	void
1231	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1232	{	1566	{
1233	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1234	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1568	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1235	#endif	1569	#endif
1236	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1237	return;	1571	return;
1238		1572
1239	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1573	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1240		1574
1241	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1242	array_needsize (signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1243	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1244		1578
1245	if (!w->next)	1579	if (!((WL)w)->next)
1246	{	1580	{
		1581	#if _WIN32
		1582	signal (w->signum, sighandler);
		1583	#else
1247	struct sigaction sa;	1584	struct sigaction sa;
1248	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1249	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
1250	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1587	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1251	sigaction (w->signum, &sa, 0);	1588	sigaction (w->signum, &sa, 0);
		1589	#endif
1252	}	1590	}
1253	}	1591	}
1254		1592
1255	void	1593	void
1256	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1257	{	1595	{
1258	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1259	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1260	return;	1598	return;
1261		1599
1262	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1263	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1264		1602
…		…
1268		1606
1269	void	1607	void
1270	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1271	{	1609	{
1272	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1273	assert (("child watchers are only supported in the default loop", loop == default_loop));	1611	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1274	#endif	1612	#endif
1275	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1276	return;	1614	return;
1277		1615
1278	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1279	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1280	}	1618	}
1281		1619
1282	void	1620	void
1283	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1284	{	1622	{
1285	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1286	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1287	return;	1625	return;
1288		1626
1289	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1290	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1291	}	1629	}
…		…
1306	void (cb)(int revents, void arg) = once->cb;	1644	void (cb)(int revents, void arg) = once->cb;
1307	void *arg = once->arg;	1645	void *arg = once->arg;
1308		1646
1309	ev_io_stop (EV_A_ &once->io);	1647	ev_io_stop (EV_A_ &once->io);
1310	ev_timer_stop (EV_A_ &once->to);	1648	ev_timer_stop (EV_A_ &once->to);
1311	free (once);	1649	ev_free (once);
1312		1650
1313	cb (revents, arg);	1651	cb (revents, arg);
1314	}	1652	}
1315		1653
1316	static void	1654	static void
…		…
1326	}	1664	}
1327		1665
1328	void	1666	void
1329	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1667	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1330	{	1668	{
1331	struct ev_once *once = malloc (sizeof (struct ev_once));	1669	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1332		1670
1333	if (!once)	1671	if (expect_false (!once))
		1672	{
1334	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1335	else	1674	return;
1336	{	1675	}
		1676
1337	once->cb = cb;	1677	once->cb = cb;
1338	once->arg = arg;	1678	once->arg = arg;
1339		1679
1340	ev_watcher_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1341	if (fd >= 0)	1681	if (fd >= 0)
1342	{	1682	{
1343	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1344	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1345	}	1685	}
1346		1686
1347	ev_watcher_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1348	if (timeout >= 0.)	1688	if (timeout >= 0.)
1349	{	1689	{
1350	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1351	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1352	}
1353	}	1692	}
1354	}	1693	}
1355		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs. Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC