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

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 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	#if EV_USE_CONFIG_H	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		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	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
		66	# endif
		67
33	#endif	68	#endif
34		69
35	#include <math.h>	70	#include <math.h>
36	#include <stdlib.h>	71	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	72	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	73	#include <stddef.h>
41		74
42	#include <stdio.h>	75	#include <stdio.h>
43		76
44	#include <assert.h>	77	#include <assert.h>
45	#include <errno.h>	78	#include <errno.h>
46	#include <sys/types.h>	79	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	80	#include <time.h>
		81
		82	#include <signal.h>
		83
		84	#ifndef _WIN32
		85	# include <unistd.h>
		86	# include <sys/time.h>
		87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
		93	# endif
		94	#endif
50		95
51	/**/	96	/**/
52		97
53	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 1
55	#endif	100	#endif
56		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 1
		104	#endif
		105
57	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
		108	# define EV_SELECT_USE_FD_SET 1
59	#endif	109	#endif
60		110
61	#ifndef EV_USE_POLL	111	#ifndef EV_USE_POLL
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	112	# ifdef _WIN32
		113	# define EV_USE_POLL 0
		114	# else
		115	# define EV_USE_POLL 1
		116	# endif
63	#endif	117	#endif
64		118
65	#ifndef EV_USE_EPOLL	119	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	120	# define EV_USE_EPOLL 0
67	#endif	121	#endif
68		122
		123	#ifndef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
		125	#endif
		126
69	#ifndef EV_USE_REALTIME	127	#ifndef EV_USE_PORT
70	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
71	#endif	129	#endif
72		130
73	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
74		138
75	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
76	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
77	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
78	#endif	142	#endif
…		…
80	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
81	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
82	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
83	#endif	147	#endif
84		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
		151	#endif
		152
85	/**/	153	/**/
86		154
87	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	155	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
88	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	156	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
89	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	157	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
90	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	158	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
91		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
92	#include "ev.h"	163	# include "ev.h"
		164	#endif
93		165
94	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	168	# define inline inline
97	#else	169	#else
…		…
100	#endif	172	#endif
101		173
102	#define expect_false(expr) expect ((expr) != 0, 0)	174	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
104		176
		177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
105	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
108		186
109	static ev_tstamp now_floor, now, diff; /* monotonic clock */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		188
		189	#ifdef _WIN32
		190	# include "ev_win32.c"
		191	#endif
		192
		193	/*****************************************************************************/
		194
		195	static void (syserr_cb)(const char msg);
		196
		197	void ev_set_syserr_cb (void (cb)(const char msg))
		198	{
		199	syserr_cb = cb;
		200	}
		201
		202	static void
		203	syserr (const char *msg)
		204	{
		205	if (!msg)
		206	msg = "(libev) system error";
		207
		208	if (syserr_cb)
		209	syserr_cb (msg);
		210	else
		211	{
		212	perror (msg);
		213	abort ();
		214	}
		215	}
		216
		217	static void (alloc)(void *ptr, long size);
		218
		219	void ev_set_allocator (void (cb)(void *ptr, long size))
		220	{
		221	alloc = cb;
		222	}
		223
		224	static void *
		225	ev_realloc (void *ptr, long size)
		226	{
		227	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		228
		229	if (!ptr && size)
		230	{
		231	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		232	abort ();
		233	}
		234
		235	return ptr;
		236	}
		237
		238	#define ev_malloc(size) ev_realloc (0, (size))
		239	#define ev_free(ptr) ev_realloc ((ptr), 0)
		240
		241	/*****************************************************************************/
		242
		243	typedef struct
		244	{
		245	WL head;
		246	unsigned char events;
		247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
		251	} ANFD;
		252
		253	typedef struct
		254	{
		255	W w;
		256	int events;
		257	} ANPENDING;
		258
		259	#if EV_MULTIPLICITY
		260
		261	struct ev_loop
		262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
		265	#define VAR(name,decl) decl;
		266	#include "ev_vars.h"
		267	#undef VAR
		268	};
		269	#include "ev_wrap.h"
		270
		271	static struct ev_loop default_loop_struct;
		272	struct ev_loop *ev_default_loop_ptr;
		273
		274	#else
		275
110	ev_tstamp ev_now;	276	ev_tstamp ev_rt_now;
111	int ev_method;	277	#define VAR(name,decl) static decl;
		278	#include "ev_vars.h"
		279	#undef VAR
112		280
113	static int have_monotonic; /* runtime */	281	static int ev_default_loop_ptr;
114		282
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	283	#endif
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118		284
119	/*****************************************************************************/	285	/*****************************************************************************/
120		286
121	ev_tstamp	287	ev_tstamp
122	ev_time (void)	288	ev_time (void)
…		…
130	gettimeofday (&tv, 0);	296	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	297	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	298	#endif
133	}	299	}
134		300
135	static ev_tstamp	301	inline ev_tstamp
136	get_clock (void)	302	get_clock (void)
137	{	303	{
138	#if EV_USE_MONOTONIC	304	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	305	if (expect_true (have_monotonic))
140	{	306	{
…		…
145	#endif	311	#endif
146		312
147	return ev_time ();	313	return ev_time ();
148	}	314	}
149		315
		316	#if EV_MULTIPLICITY
		317	ev_tstamp
		318	ev_now (EV_P)
		319	{
		320	return ev_rt_now;
		321	}
		322	#endif
		323
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
151		325
152	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
153	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
154	{ \	328	{ \
155	int newcnt = cur; \	329	int newcnt = cur; \
156	do \	330	do \
157	{ \	331	{ \
158	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
159	} \	333	} \
160	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
161	\	335	\
162	base = realloc (base, sizeof (base) (newcnt)); \	336	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
163	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
164	cur = newcnt; \	338	cur = newcnt; \
165	}	339	}
		340
		341	#define array_slim(type,stem) \
		342	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		343	{ \
		344	stem ## max = array_roundsize (stem ## cnt >> 1); \
		345	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		347	}
		348
		349	#define array_free(stem, idx) \
		350	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
166		351
167	/*****************************************************************************/	352	/*****************************************************************************/
168
169	typedef struct
170	{
171	struct ev_io *head;
172	unsigned char events;
173	unsigned char reify;
174	} ANFD;
175
176	static ANFD *anfds;
177	static int anfdmax;
178		353
179	static void	354	static void
180	anfds_init (ANFD *base, int count)	355	anfds_init (ANFD *base, int count)
181	{	356	{
182	while (count--)	357	while (count--)
…		…
187		362
188	++base;	363	++base;
189	}	364	}
190	}	365	}
191		366
192	typedef struct	367	void
		368	ev_feed_event (EV_P_ void *w, int revents)
193	{	369	{
194	W w;	370	W w_ = (W)w;
195	int events;
196	} ANPENDING;
197		371
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void
202	event (W w, int events)
203	{
204	if (w->pending)	372	if (w_->pending)
205	{	373	{
206	pendings [w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
207	return;	375	return;
208	}	376	}
209		377
210	w->pending = ++pendingcnt;	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
212	pendings [pendingcnt - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
213	pendings [pendingcnt - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
214	}	382	}
215		383
216	static void	384	static void
217	queue_events (W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	386	{
219	int i;	387	int i;
220		388
221	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
223	}	391	}
224		392
225	static void	393	inline void
226	fd_event (int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
227	{	395	{
228	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	397	struct ev_io *w;
230		398
231	for (w = anfd->head; w; w = w->next)	399	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	400	{
233	int ev = w->events & events;	401	int ev = w->events & revents;
234		402
235	if (ev)	403	if (ev)
236	event ((W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
237	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
238	}	412	}
239		413
240	/*****************************************************************************/	414	/*****************************************************************************/
241		415
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	416	static void
246	fd_reify (void)	417	fd_reify (EV_P)
247	{	418	{
248	int i;	419	int i;
249		420
250	for (i = 0; i < fdchangecnt; ++i)	421	for (i = 0; i < fdchangecnt; ++i)
251	{	422	{
…		…
253	ANFD *anfd = anfds + fd;	424	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	425	struct ev_io *w;
255		426
256	int events = 0;	427	int events = 0;
257		428
258	for (w = anfd->head; w; w = w->next)	429	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	430	events \|= w->events;
260		431
		432	#if EV_SELECT_IS_WINSOCKET
		433	if (events)
		434	{
		435	unsigned long argp;
		436	anfd->handle = _get_osfhandle (fd);
		437	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		438	}
		439	#endif
		440
261	anfd->reify = 0;	441	anfd->reify = 0;
262		442
263	if (anfd->events != events)
264	{
265	method_modify (fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	444	anfd->events = events;
267	}
268	}	445	}
269		446
270	fdchangecnt = 0;	447	fdchangecnt = 0;
271	}	448	}
272		449
273	static void	450	static void
274	fd_change (int fd)	451	fd_change (EV_P_ int fd)
275	{	452	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	453	if (anfds [fd].reify)
277	return;	454	return;
278		455
279	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
280		457
281	++fdchangecnt;	458	++fdchangecnt;
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
283	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
284	}	461	}
285		462
286	static void	463	static void
287	fd_kill (int fd)	464	fd_kill (EV_P_ int fd)
288	{	465	{
289	struct ev_io *w;	466	struct ev_io *w;
290		467
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
293	{	469	{
294	ev_io_stop (w);	470	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	471	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	472	}
		473	}
		474
		475	static int
		476	fd_valid (int fd)
		477	{
		478	#ifdef _WIN32
		479	return _get_osfhandle (fd) != -1;
		480	#else
		481	return fcntl (fd, F_GETFD) != -1;
		482	#endif
297	}	483	}
298		484
299	/* called on EBADF to verify fds */	485	/* called on EBADF to verify fds */
300	static void	486	static void
301	fd_ebadf (void)	487	fd_ebadf (EV_P)
302	{	488	{
303	int fd;	489	int fd;
304		490
305	for (fd = 0; fd < anfdmax; ++fd)	491	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	492	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	493	if (!fd_valid (fd) == -1 && errno == EBADF)
308	fd_kill (fd);	494	fd_kill (EV_A_ fd);
309	}	495	}
310		496
311	/* called on ENOMEM in select/poll to kill some fds and retry */	497	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	498	static void
313	fd_enomem (void)	499	fd_enomem (EV_P)
314	{	500	{
315	int fd = anfdmax;	501	int fd;
316		502
317	while (fd--)	503	for (fd = anfdmax; fd--; )
318	if (anfds [fd].events)	504	if (anfds [fd].events)
319	{	505	{
320	close (fd);
321	fd_kill (fd);	506	fd_kill (EV_A_ fd);
322	return;	507	return;
323	}	508	}
324	}	509	}
325		510
		511	/* usually called after fork if method needs to re-arm all fds from scratch */
		512	static void
		513	fd_rearm_all (EV_P)
		514	{
		515	int fd;
		516
		517	/* this should be highly optimised to not do anything but set a flag */
		518	for (fd = 0; fd < anfdmax; ++fd)
		519	if (anfds [fd].events)
		520	{
		521	anfds [fd].events = 0;
		522	fd_change (EV_A_ fd);
		523	}
		524	}
		525
326	/*****************************************************************************/	526	/*****************************************************************************/
327		527
328	static struct ev_timer **timers;
329	static int timermax, timercnt;
330
331	static struct ev_periodic **periodics;
332	static int periodicmax, periodiccnt;
333
334	static void	528	static void
335	upheap (WT *timers, int k)	529	upheap (WT *heap, int k)
336	{	530	{
337	WT w = timers [k];	531	WT w = heap [k];
338		532
339	while (k && timers [k >> 1]->at > w->at)	533	while (k && heap [k >> 1]->at > w->at)
340	{	534	{
341	timers [k] = timers [k >> 1];	535	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
343	k >>= 1;	537	k >>= 1;
344	}	538	}
345		539
346	timers [k] = w;	540	heap [k] = w;
347	timers [k]->active = k + 1;	541	((W)heap [k])->active = k + 1;
348		542
349	}	543	}
350		544
351	static void	545	static void
352	downheap (WT *timers, int N, int k)	546	downheap (WT *heap, int N, int k)
353	{	547	{
354	WT w = timers [k];	548	WT w = heap [k];
355		549
356	while (k < (N >> 1))	550	while (k < (N >> 1))
357	{	551	{
358	int j = k << 1;	552	int j = k << 1;
359		553
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	554	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	555	++j;
362		556
363	if (w->at <= timers [j]->at)	557	if (w->at <= heap [j]->at)
364	break;	558	break;
365		559
366	timers [k] = timers [j];	560	heap [k] = heap [j];
367	timers [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
368	k = j;	562	k = j;
369	}	563	}
370		564
371	timers [k] = w;	565	heap [k] = w;
372	timers [k]->active = k + 1;	566	((W)heap [k])->active = k + 1;
		567	}
		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
373	}	574	}
374		575
375	/*****************************************************************************/	576	/*****************************************************************************/
376		577
377	typedef struct	578	typedef struct
378	{	579	{
379	struct ev_signal *head;	580	WL head;
380	sig_atomic_t volatile gotsig;	581	sig_atomic_t volatile gotsig;
381	} ANSIG;	582	} ANSIG;
382		583
383	static ANSIG *signals;	584	static ANSIG *signals;
384	static int signalmax;	585	static int signalmax;
…		…
400	}	601	}
401		602
402	static void	603	static void
403	sighandler (int signum)	604	sighandler (int signum)
404	{	605	{
		606	#if _WIN32
		607	signal (signum, sighandler);
		608	#endif
		609
405	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
406		611
407	if (!gotsig)	612	if (!gotsig)
408	{	613	{
		614	int old_errno = errno;
409	gotsig = 1;	615	gotsig = 1;
410	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
		617	errno = old_errno;
411	}	618	}
412	}	619	}
413		620
		621	void
		622	ev_feed_signal_event (EV_P_ int signum)
		623	{
		624	WL w;
		625
		626	#if EV_MULTIPLICITY
		627	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		628	#endif
		629
		630	--signum;
		631
		632	if (signum < 0 \|\| signum >= signalmax)
		633	return;
		634
		635	signals [signum].gotsig = 0;
		636
		637	for (w = signals [signum].head; w; w = w->next)
		638	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		639	}
		640
414	static void	641	static void
415	sigcb (struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	643	{
417	struct ev_signal *w;
418	int signum;	644	int signum;
419		645
420	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
421	gotsig = 0;	647	gotsig = 0;
422		648
423	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
424	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
425	{	651	ev_feed_signal_event (EV_A_ signum + 1);
426	signals [signum].gotsig = 0;
427
428	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);
430	}
431	}	652	}
432		653
433	static void	654	inline void
434	siginit (void)	655	fd_intern (int fd)
435	{	656	{
		657	#ifdef _WIN32
		658	int arg = 1;
		659	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		660	#else
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	661	fcntl (fd, F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438
439	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	662	fcntl (fd, F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	663	#endif
		664	}
		665
		666	static void
		667	siginit (EV_P)
		668	{
		669	fd_intern (sigpipe [0]);
		670	fd_intern (sigpipe [1]);
442		671
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	673	ev_io_start (EV_A_ &sigev);
		674	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	675	}
446		676
447	/*****************************************************************************/	677	/*****************************************************************************/
448		678
449	static struct ev_idle **idles;
450	static int idlemax, idlecnt;
451
452	static struct ev_prepare **prepares;
453	static int preparemax, preparecnt;
454
455	static struct ev_check **checks;
456	static int checkmax, checkcnt;
457
458	/*****************************************************************************/
459
460	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
		680
		681	#ifndef _WIN32
		682
461	static struct ev_signal childev;	683	static struct ev_signal childev;
462		684
463	#ifndef WCONTINUED	685	#ifndef WCONTINUED
464	# define WCONTINUED 0	686	# define WCONTINUED 0
465	#endif	687	#endif
466		688
467	static void	689	static void
468	childcb (struct ev_signal *sw, int revents)	690	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	691	{
470	struct ev_child *w;	692	struct ev_child *w;
		693
		694	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		695	if (w->pid == pid \|\| !w->pid)
		696	{
		697	ev_priority (w) = ev_priority (sw); /* need to do it now */
		698	w->rpid = pid;
		699	w->rstatus = status;
		700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		701	}
		702	}
		703
		704	static void
		705	childcb (EV_P_ struct ev_signal *sw, int revents)
		706	{
471	int pid, status;	707	int pid, status;
472		708
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	710	{
475	if (w->pid == pid \|\| !w->pid)	711	/* make sure we are called again until all childs have been reaped */
476	{	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	713
478	event ((W)w, EV_CHILD);	714	child_reap (EV_A_ sw, pid, pid, status);
479	}	715	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		716	}
480	}	717	}
		718
		719	#endif
481		720
482	/*****************************************************************************/	721	/*****************************************************************************/
483		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
		726	#if EV_USE_KQUEUE
		727	# include "ev_kqueue.c"
		728	#endif
484	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	730	# include "ev_epoll.c"
486	#endif	731	#endif
487	#if EV_USE_POLL	732	#if EV_USE_POLL
488	# include "ev_poll.c"	733	# include "ev_poll.c"
…		…
501	ev_version_minor (void)	746	ev_version_minor (void)
502	{	747	{
503	return EV_VERSION_MINOR;	748	return EV_VERSION_MINOR;
504	}	749	}
505		750
506	/* return true if we are running with elevated privileges and ignore env variables */	751	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	752	static int
508	enable_secure ()	753	enable_secure (void)
509	{	754	{
		755	#ifdef _WIN32
		756	return 0;
		757	#else
510	return getuid () != geteuid ()	758	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
		760	#endif
512	}	761	}
513		762
514	int ev_init (int methods)	763	unsigned int
		764	ev_method (EV_P)
515	{	765	{
		766	return method;
		767	}
		768
		769	static void
		770	loop_init (EV_P_ unsigned int flags)
		771	{
516	if (!ev_method)	772	if (!method)
517	{	773	{
518	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
519	{	775	{
520	struct timespec ts;	776	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	778	have_monotonic = 1;
523	}	779	}
524	#endif	780	#endif
525		781
526	ev_now = ev_time ();	782	ev_rt_now = ev_time ();
527	now = get_clock ();	783	mn_now = get_clock ();
528	now_floor = now;	784	now_floor = mn_now;
529	diff = ev_now - now;	785	rtmn_diff = ev_rt_now - mn_now;
530		786
531	if (pipe (sigpipe))	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
532	return 0;
533
534	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
537	else
538	methods = EVMETHOD_ANY;
539		789
		790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
		792
540	ev_method = 0;	793	method = 0;
		794	#if EV_USE_PORT
		795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		796	#endif
		797	#if EV_USE_KQUEUE
		798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
		799	#endif
541	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
543	#endif	802	#endif
544	#if EV_USE_POLL	803	#if EV_USE_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
546	#endif	805	#endif
547	#if EV_USE_SELECT	806	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
549	#endif	808	#endif
550		809
		810	ev_init (&sigev, sigcb);
		811	ev_set_priority (&sigev, EV_MAXPRI);
		812	}
		813	}
		814
		815	void
		816	loop_destroy (EV_P)
		817	{
		818	int i;
		819
		820	#if EV_USE_PORT
		821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		822	#endif
		823	#if EV_USE_KQUEUE
		824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		825	#endif
		826	#if EV_USE_EPOLL
		827	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		828	#endif
		829	#if EV_USE_POLL
		830	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		831	#endif
		832	#if EV_USE_SELECT
		833	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		834	#endif
		835
		836	for (i = NUMPRI; i--; )
		837	array_free (pending, [i]);
		838
		839	/* have to use the microsoft-never-gets-it-right macro */
		840	array_free (fdchange, EMPTY0);
		841	array_free (timer, EMPTY0);
		842	#if EV_PERIODICS
		843	array_free (periodic, EMPTY0);
		844	#endif
		845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
		848
		849	method = 0;
		850	}
		851
		852	static void
		853	loop_fork (EV_P)
		854	{
		855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		857	#endif
		858	#if EV_USE_KQUEUE
		859	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		860	#endif
		861	#if EV_USE_EPOLL
		862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		863	#endif
		864
		865	if (ev_is_active (&sigev))
		866	{
		867	/* default loop */
		868
		869	ev_ref (EV_A);
		870	ev_io_stop (EV_A_ &sigev);
		871	close (sigpipe [0]);
		872	close (sigpipe [1]);
		873
		874	while (pipe (sigpipe))
		875	syserr ("(libev) error creating pipe");
		876
		877	siginit (EV_A);
		878	}
		879
		880	postfork = 0;
		881	}
		882
		883	#if EV_MULTIPLICITY
		884	struct ev_loop *
		885	ev_loop_new (unsigned int flags)
		886	{
		887	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		888
		889	memset (loop, 0, sizeof (struct ev_loop));
		890
		891	loop_init (EV_A_ flags);
		892
		893	if (ev_method (EV_A))
		894	return loop;
		895
		896	return 0;
		897	}
		898
		899	void
		900	ev_loop_destroy (EV_P)
		901	{
		902	loop_destroy (EV_A);
		903	ev_free (loop);
		904	}
		905
		906	void
		907	ev_loop_fork (EV_P)
		908	{
		909	postfork = 1;
		910	}
		911
		912	#endif
		913
		914	#if EV_MULTIPLICITY
		915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
		917	#else
		918	int
		919	ev_default_loop (unsigned int flags)
		920	#endif
		921	{
		922	if (sigpipe [0] == sigpipe [1])
		923	if (pipe (sigpipe))
		924	return 0;
		925
		926	if (!ev_default_loop_ptr)
		927	{
		928	#if EV_MULTIPLICITY
		929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
		930	#else
		931	ev_default_loop_ptr = 1;
		932	#endif
		933
		934	loop_init (EV_A_ flags);
		935
551	if (ev_method)	936	if (ev_method (EV_A))
552	{	937	{
553	ev_watcher_init (&sigev, sigcb);
554	siginit ();	938	siginit (EV_A);
555		939
		940	#ifndef _WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
		942	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	943	ev_signal_start (EV_A_ &childev);
		944	ev_unref (EV_A); /* child watcher should not keep loop alive */
		945	#endif
558	}	946	}
		947	else
		948	ev_default_loop_ptr = 0;
559	}	949	}
560		950
561	return ev_method;	951	return ev_default_loop_ptr;
		952	}
		953
		954	void
		955	ev_default_destroy (void)
		956	{
		957	#if EV_MULTIPLICITY
		958	struct ev_loop *loop = ev_default_loop_ptr;
		959	#endif
		960
		961	#ifndef _WIN32
		962	ev_ref (EV_A); /* child watcher */
		963	ev_signal_stop (EV_A_ &childev);
		964	#endif
		965
		966	ev_ref (EV_A); /* signal watcher */
		967	ev_io_stop (EV_A_ &sigev);
		968
		969	close (sigpipe [0]); sigpipe [0] = 0;
		970	close (sigpipe [1]); sigpipe [1] = 0;
		971
		972	loop_destroy (EV_A);
		973	}
		974
		975	void
		976	ev_default_fork (void)
		977	{
		978	#if EV_MULTIPLICITY
		979	struct ev_loop *loop = ev_default_loop_ptr;
		980	#endif
		981
		982	if (method)
		983	postfork = 1;
562	}	984	}
563		985
564	/*****************************************************************************/	986	/*****************************************************************************/
565		987
566	void
567	ev_fork_prepare (void)
568	{
569	/* nop */
570	}
571
572	void
573	ev_fork_parent (void)
574	{
575	/* nop */
576	}
577
578	void
579	ev_fork_child (void)
580	{
581	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();
584	#endif
585
586	ev_io_stop (&sigev);
587	close (sigpipe [0]);
588	close (sigpipe [1]);
589	pipe (sigpipe);
590	siginit ();
591	}
592
593	/*****************************************************************************/
594
595	static void	988	static int
		989	any_pending (EV_P)
		990	{
		991	int pri;
		992
		993	for (pri = NUMPRI; pri--; )
		994	if (pendingcnt [pri])
		995	return 1;
		996
		997	return 0;
		998	}
		999
		1000	static void
596	call_pending (void)	1001	call_pending (EV_P)
597	{	1002	{
		1003	int pri;
		1004
		1005	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	1006	while (pendingcnt [pri])
599	{	1007	{
600	ANPENDING *p = pendings + --pendingcnt;	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		1009
602	if (p->w)	1010	if (p->w)
603	{	1011	{
604	p->w->pending = 0;	1012	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
606	}	1014	}
607	}	1015	}
608	}	1016	}
609		1017
610	static void	1018	static void
611	timers_reify (void)	1019	timers_reify (EV_P)
612	{	1020	{
613	while (timercnt && timers [0]->at <= now)	1021	while (timercnt && ((WT)timers [0])->at <= mn_now)
614	{	1022	{
615	struct ev_timer *w = timers [0];	1023	struct ev_timer *w = timers [0];
		1024
		1025	assert (("inactive timer on timer heap detected", ev_is_active (w)));
616		1026
617	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
618	if (w->repeat)	1028	if (w->repeat)
619	{	1029	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1030	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1031
621	w->at = now + w->repeat;	1032	((WT)w)->at += w->repeat;
		1033	if (((WT)w)->at < mn_now)
		1034	((WT)w)->at = mn_now;
		1035
622	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
623	}	1037	}
624	else	1038	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		1040
627	event ((W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
628	}	1042	}
629	}	1043	}
630		1044
		1045	#if EV_PERIODICS
631	static void	1046	static void
632	periodics_reify (void)	1047	periodics_reify (EV_P)
633	{	1048	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
635	{	1050	{
636	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
637		1052
		1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1054
638	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
639	if (w->interval)	1056	if (w->reschedule_cb)
640	{	1057	{
		1058	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1059	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1060	downheap ((WT *)periodics, periodiccnt, 0);
		1061	}
		1062	else if (w->interval)
		1063	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1064	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
642	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1065	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
643	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
644	}	1067	}
645	else	1068	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		1070
648	event ((W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
649	}	1072	}
650	}	1073	}
651		1074
652	static void	1075	static void
653	periodics_reschedule (ev_tstamp diff)	1076	periodics_reschedule (EV_P)
654	{	1077	{
655	int i;	1078	int i;
656		1079
657	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
659	{	1082	{
660	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
661		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
662	if (w->interval)	1087	else if (w->interval)
663	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1088	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
665
666	if (fabs (diff) >= 1e-4)
667	{
668	ev_periodic_stop (w);
669	ev_periodic_start (w);
670
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}
673	}
674	}	1089	}
675	}
676		1090
677	static int	1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
		1094	}
		1095	#endif
		1096
		1097	inline int
678	time_update_monotonic (void)	1098	time_update_monotonic (EV_P)
679	{	1099	{
680	now = get_clock ();	1100	mn_now = get_clock ();
681		1101
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	1103	{
684	ev_now = now + diff;	1104	ev_rt_now = rtmn_diff + mn_now;
685	return 0;	1105	return 0;
686	}	1106	}
687	else	1107	else
688	{	1108	{
689	now_floor = now;	1109	now_floor = mn_now;
690	ev_now = ev_time ();	1110	ev_rt_now = ev_time ();
691	return 1;	1111	return 1;
692	}	1112	}
693	}	1113	}
694		1114
695	static void	1115	static void
696	time_update (void)	1116	time_update (EV_P)
697	{	1117	{
698	int i;	1118	int i;
699		1119
700	#if EV_USE_MONOTONIC	1120	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	1121	if (expect_true (have_monotonic))
702	{	1122	{
703	if (time_update_monotonic ())	1123	if (time_update_monotonic (EV_A))
704	{	1124	{
705	ev_tstamp odiff = diff;	1125	ev_tstamp odiff = rtmn_diff;
706		1126
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1127	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	1128	{
709	diff = ev_now - now;	1129	rtmn_diff = ev_rt_now - mn_now;
710		1130
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	1132	return; /* all is well */
713		1133
714	ev_now = ev_time ();	1134	ev_rt_now = ev_time ();
715	now = get_clock ();	1135	mn_now = get_clock ();
716	now_floor = now;	1136	now_floor = mn_now;
717	}	1137	}
718		1138
		1139	# if EV_PERIODICS
719	periodics_reschedule (diff - odiff);	1140	periodics_reschedule (EV_A);
		1141	# endif
720	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
		1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
721	}	1144	}
722	}	1145	}
723	else	1146	else
724	#endif	1147	#endif
725	{	1148	{
726	ev_now = ev_time ();	1149	ev_rt_now = ev_time ();
727		1150
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1151	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	1152	{
		1153	#if EV_PERIODICS
730	periodics_reschedule (ev_now - now);	1154	periodics_reschedule (EV_A);
		1155	#endif
731		1156
732	/* adjust timers. this is easy, as the offset is the same for all */	1157	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
735	}	1160	}
736		1161
737	now = ev_now;	1162	mn_now = ev_rt_now;
738	}	1163	}
739	}	1164	}
740		1165
741	int ev_loop_done;	1166	void
		1167	ev_ref (EV_P)
		1168	{
		1169	++activecnt;
		1170	}
742		1171
		1172	void
		1173	ev_unref (EV_P)
		1174	{
		1175	--activecnt;
		1176	}
		1177
		1178	static int loop_done;
		1179
		1180	void
743	void ev_loop (int flags)	1181	ev_loop (EV_P_ int flags)
744	{	1182	{
745	double block;	1183	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		1185
748	do	1186	while (activecnt)
749	{	1187	{
750	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
752	{	1190	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	1192	call_pending (EV_A);
755	}	1193	}
756		1194
		1195	/* we might have forked, so reify kernel state if necessary */
		1196	if (expect_false (postfork))
		1197	loop_fork (EV_A);
		1198
757	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
758	fd_reify ();	1200	fd_reify (EV_A);
759		1201
760	/* calculate blocking time */	1202	/* calculate blocking time */
761		1203
762	/* we only need this for !monotonic clockor timers, but as we basically	1204	/* we only need this for !monotonic clock or timers, but as we basically
763	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
766	time_update_monotonic ();	1208	time_update_monotonic (EV_A);
767	else	1209	else
768	#endif	1210	#endif
769	{	1211	{
770	ev_now = ev_time ();	1212	ev_rt_now = ev_time ();
771	now = ev_now;	1213	mn_now = ev_rt_now;
772	}	1214	}
773		1215
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	1217	block = 0.;
776	else	1218	else
777	{	1219	{
778	block = MAX_BLOCKTIME;	1220	block = MAX_BLOCKTIME;
779		1221
780	if (timercnt)	1222	if (timercnt)
781	{	1223	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
783	if (block > to) block = to;	1225	if (block > to) block = to;
784	}	1226	}
785		1227
		1228	#if EV_PERIODICS
786	if (periodiccnt)	1229	if (periodiccnt)
787	{	1230	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
789	if (block > to) block = to;	1232	if (block > to) block = to;
790	}	1233	}
		1234	#endif
791		1235
792	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
793	}	1237	}
794		1238
795	method_poll (block);	1239	method_poll (EV_A_ block);
796		1240
797	/* update ev_now, do magic */	1241	/* update ev_rt_now, do magic */
798	time_update ();	1242	time_update (EV_A);
799		1243
800	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
802	periodics_reify (); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
803		1249
804	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		1253
808	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
809	if (checkcnt)	1255	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		1257
812	call_pending ();	1258	call_pending (EV_A);
813	}
814	while (!ev_loop_done);
815		1259
		1260	if (loop_done)
		1261	break;
		1262	}
		1263
816	if (ev_loop_done != 2)	1264	if (loop_done != 2)
817	ev_loop_done = 0;	1265	loop_done = 0;
		1266	}
		1267
		1268	void
		1269	ev_unloop (EV_P_ int how)
		1270	{
		1271	loop_done = how;
818	}	1272	}
819		1273
820	/*****************************************************************************/	1274	/*****************************************************************************/
821		1275
822	static void	1276	inline void
823	wlist_add (WL *head, WL elem)	1277	wlist_add (WL *head, WL elem)
824	{	1278	{
825	elem->next = *head;	1279	elem->next = *head;
826	*head = elem;	1280	*head = elem;
827	}	1281	}
828		1282
829	static void	1283	inline void
830	wlist_del (WL *head, WL elem)	1284	wlist_del (WL *head, WL elem)
831	{	1285	{
832	while (*head)	1286	while (*head)
833	{	1287	{
834	if (*head == elem)	1288	if (*head == elem)
…		…
839		1293
840	head = &(*head)->next;	1294	head = &(*head)->next;
841	}	1295	}
842	}	1296	}
843		1297
844	static void	1298	inline void
845	ev_clear_pending (W w)	1299	ev_clear_pending (EV_P_ W w)
846	{	1300	{
847	if (w->pending)	1301	if (w->pending)
848	{	1302	{
849	pendings [w->pending - 1].w = 0;	1303	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	1304	w->pending = 0;
851	}	1305	}
852	}	1306	}
853		1307
854	static void	1308	inline void
855	ev_start (W w, int active)	1309	ev_start (EV_P_ W w, int active)
856	{	1310	{
		1311	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1312	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1313
857	w->active = active;	1314	w->active = active;
		1315	ev_ref (EV_A);
858	}	1316	}
859		1317
860	static void	1318	inline void
861	ev_stop (W w)	1319	ev_stop (EV_P_ W w)
862	{	1320	{
		1321	ev_unref (EV_A);
863	w->active = 0;	1322	w->active = 0;
864	}	1323	}
865		1324
866	/*****************************************************************************/	1325	/*****************************************************************************/
867		1326
868	void	1327	void
869	ev_io_start (struct ev_io *w)	1328	ev_io_start (EV_P_ struct ev_io *w)
870	{	1329	{
871	int fd = w->fd;	1330	int fd = w->fd;
872		1331
873	if (ev_is_active (w))	1332	if (ev_is_active (w))
874	return;	1333	return;
875		1334
876	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
877		1336
878	ev_start ((W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		1340
882	fd_change (fd);	1341	fd_change (EV_A_ fd);
883	}	1342	}
884		1343
885	void	1344	void
886	ev_io_stop (struct ev_io *w)	1345	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1346	{
888	ev_clear_pending ((W)w);	1347	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
890	return;	1349	return;
891		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1354	ev_stop (EV_A_ (W)w);
894		1355
895	fd_change (w->fd);	1356	fd_change (EV_A_ w->fd);
896	}	1357	}
897		1358
898	void	1359	void
899	ev_timer_start (struct ev_timer *w)	1360	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1361	{
901	if (ev_is_active (w))	1362	if (ev_is_active (w))
902	return;	1363	return;
903		1364
904	w->at += now;	1365	((WT)w)->at += mn_now;
905		1366
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1367	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1368
908	ev_start ((W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
910	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
912	}
913		1373
		1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1375	}
		1376
914	void	1377	void
915	ev_timer_stop (struct ev_timer *w)	1378	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1379	{
917	ev_clear_pending ((W)w);	1380	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1381	if (!ev_is_active (w))
919	return;	1382	return;
920		1383
		1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1385
921	if (w->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
922	{	1387	{
923	timers [w->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
924	downheap ((WT *)timers, timercnt, w->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
925	}	1390	}
926		1391
927	w->at = w->repeat;	1392	((WT)w)->at -= mn_now;
928		1393
929	ev_stop ((W)w);	1394	ev_stop (EV_A_ (W)w);
930	}	1395	}
931		1396
932	void	1397	void
933	ev_timer_again (struct ev_timer *w)	1398	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1399	{
935	if (ev_is_active (w))	1400	if (ev_is_active (w))
936	{	1401	{
937	if (w->repeat)	1402	if (w->repeat)
938	{	1403	{
939	w->at = now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
941	}	1406	}
942	else	1407	else
943	ev_timer_stop (w);	1408	ev_timer_stop (EV_A_ w);
944	}	1409	}
945	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
946	ev_timer_start (w);	1413	ev_timer_start (EV_A_ w);
		1414	}
947	}	1415	}
948		1416
		1417	#if EV_PERIODICS
949	void	1418	void
950	ev_periodic_start (struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1420	{
952	if (ev_is_active (w))	1421	if (ev_is_active (w))
953	return;	1422	return;
954		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1428	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
956
957	/* this formula differs from the one in periodic_reify because we do not always round up */	1429	/* this formula differs from the one in periodic_reify because we do not always round up */
958	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1430	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1431	}
960		1432
961	ev_start ((W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
963	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
965	}
966		1437
		1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1439	}
		1440
967	void	1441	void
968	ev_periodic_stop (struct ev_periodic *w)	1442	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1443	{
970	ev_clear_pending ((W)w);	1444	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1445	if (!ev_is_active (w))
972	return;	1446	return;
973		1447
		1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1449
974	if (w->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
975	{	1451	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
978	}	1454	}
979		1455
980	ev_stop ((W)w);	1456	ev_stop (EV_A_ (W)w);
981	}	1457	}
982		1458
983	void	1459	void
		1460	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1461	{
		1462	/* TODO: use adjustheap and recalculation */
		1463	ev_periodic_stop (EV_A_ w);
		1464	ev_periodic_start (EV_A_ w);
		1465	}
		1466	#endif
		1467
		1468	void
984	ev_signal_start (struct ev_signal *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
985	{	1470	{
986	if (ev_is_active (w))	1471	if (ev_is_active (w))
987	return;	1472	return;
988		1473
		1474	ev_start (EV_A_ (W)w, ++idlecnt);
		1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1476	idles [idlecnt - 1] = w;
		1477	}
		1478
		1479	void
		1480	ev_idle_stop (EV_P_ struct ev_idle *w)
		1481	{
		1482	ev_clear_pending (EV_A_ (W)w);
		1483	if (!ev_is_active (w))
		1484	return;
		1485
		1486	idles [((W)w)->active - 1] = idles [--idlecnt];
		1487	ev_stop (EV_A_ (W)w);
		1488	}
		1489
		1490	void
		1491	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1492	{
		1493	if (ev_is_active (w))
		1494	return;
		1495
		1496	ev_start (EV_A_ (W)w, ++preparecnt);
		1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1498	prepares [preparecnt - 1] = w;
		1499	}
		1500
		1501	void
		1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1503	{
		1504	ev_clear_pending (EV_A_ (W)w);
		1505	if (!ev_is_active (w))
		1506	return;
		1507
		1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1509	ev_stop (EV_A_ (W)w);
		1510	}
		1511
		1512	void
		1513	ev_check_start (EV_P_ struct ev_check *w)
		1514	{
		1515	if (ev_is_active (w))
		1516	return;
		1517
		1518	ev_start (EV_A_ (W)w, ++checkcnt);
		1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
		1520	checks [checkcnt - 1] = w;
		1521	}
		1522
		1523	void
		1524	ev_check_stop (EV_P_ struct ev_check *w)
		1525	{
		1526	ev_clear_pending (EV_A_ (W)w);
		1527	if (!ev_is_active (w))
		1528	return;
		1529
		1530	checks [((W)w)->active - 1] = checks [--checkcnt];
		1531	ev_stop (EV_A_ (W)w);
		1532	}
		1533
		1534	#ifndef SA_RESTART
		1535	# define SA_RESTART 0
		1536	#endif
		1537
		1538	void
		1539	ev_signal_start (EV_P_ struct ev_signal *w)
		1540	{
		1541	#if EV_MULTIPLICITY
		1542	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1543	#endif
		1544	if (ev_is_active (w))
		1545	return;
		1546
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1547	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1548
991	ev_start ((W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1552
995	if (!w->next)	1553	if (!((WL)w)->next)
996	{	1554	{
		1555	#if _WIN32
		1556	signal (w->signum, sighandler);
		1557	#else
997	struct sigaction sa;	1558	struct sigaction sa;
998	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1561	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1562	sigaction (w->signum, &sa, 0);
		1563	#endif
1002	}	1564	}
1003	}	1565	}
1004		1566
1005	void	1567	void
1006	ev_signal_stop (struct ev_signal *w)	1568	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1569	{
1008	ev_clear_pending ((W)w);	1570	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1571	if (!ev_is_active (w))
1010	return;	1572	return;
1011		1573
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1574	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1575	ev_stop (EV_A_ (W)w);
1014		1576
1015	if (!signals [w->signum - 1].head)	1577	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1578	signal (w->signum, SIG_DFL);
1017	}	1579	}
1018		1580
1019	void	1581	void
1020	ev_idle_start (struct ev_idle *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1021	{	1583	{
		1584	#if EV_MULTIPLICITY
		1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1586	#endif
1022	if (ev_is_active (w))	1587	if (ev_is_active (w))
1023	return;	1588	return;
1024		1589
1025	ev_start ((W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;
1028	}
1029
1030	void
1031	ev_idle_stop (struct ev_idle *w)
1032	{
1033	ev_clear_pending ((W)w);
1034	if (ev_is_active (w))
1035	return;
1036
1037	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);
1039	}
1040
1041	void
1042	ev_prepare_start (struct ev_prepare *w)
1043	{
1044	if (ev_is_active (w))
1045	return;
1046
1047	ev_start ((W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;
1050	}
1051
1052	void
1053	ev_prepare_stop (struct ev_prepare *w)
1054	{
1055	ev_clear_pending ((W)w);
1056	if (ev_is_active (w))
1057	return;
1058
1059	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);
1061	}
1062
1063	void
1064	ev_check_start (struct ev_check *w)
1065	{
1066	if (ev_is_active (w))
1067	return;
1068
1069	ev_start ((W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;
1072	}
1073
1074	void
1075	ev_check_stop (struct ev_check *w)
1076	{
1077	ev_clear_pending ((W)w);
1078	if (ev_is_active (w))
1079	return;
1080
1081	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);
1083	}
1084
1085	void
1086	ev_child_start (struct ev_child *w)
1087	{
1088	if (ev_is_active (w))
1089	return;
1090
1091	ev_start ((W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1591	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1592	}
1094		1593
1095	void	1594	void
1096	ev_child_stop (struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1596	{
1098	ev_clear_pending ((W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1100	return;	1599	return;
1101		1600
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1602	ev_stop (EV_A_ (W)w);
1104	}	1603	}
1105		1604
1106	/*****************************************************************************/	1605	/*****************************************************************************/
1107		1606
1108	struct ev_once	1607	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1611	void (cb)(int revents, void arg);
1113	void *arg;	1612	void *arg;
1114	};	1613	};
1115		1614
1116	static void	1615	static void
1117	once_cb (struct ev_once *once, int revents)	1616	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1617	{
1119	void (cb)(int revents, void arg) = once->cb;	1618	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1619	void *arg = once->arg;
1121		1620
1122	ev_io_stop (&once->io);	1621	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1622	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1623	ev_free (once);
1125		1624
1126	cb (revents, arg);	1625	cb (revents, arg);
1127	}	1626	}
1128		1627
1129	static void	1628	static void
1130	once_cb_io (struct ev_io *w, int revents)	1629	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1630	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1631	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1632	}
1134		1633
1135	static void	1634	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1635	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1636	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1637	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1638	}
1140		1639
1141	void	1640	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1641	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1642	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1643	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1145		1644
1146	if (!once)	1645	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1148	else	1647	else
1149	{	1648	{
1150	once->cb = cb;	1649	once->cb = cb;
1151	once->arg = arg;	1650	once->arg = arg;
1152		1651
1153	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1653	if (fd >= 0)
1155	{	1654	{
1156	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1656	ev_io_start (EV_A_ &once->io);
1158	}	1657	}
1159		1658
1160	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1660	if (timeout >= 0.)
1162	{	1661	{
1163	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1663	ev_timer_start (EV_A_ &once->to);
1165	}	1664	}
1166	}	1665	}
1167	}	1666	}
1168		1667
1169	/*****************************************************************************/	1668	#ifdef __cplusplus
1170
1171	#if 0
1172
1173	struct ev_io wio;
1174
1175	static void
1176	sin_cb (struct ev_io *w, int revents)
1177	{
1178	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1179	}	1669	}
1180
1181	static void
1182	ocb (struct ev_timer *w, int revents)
1183	{
1184	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1185	ev_timer_stop (w);
1186	ev_timer_start (w);
1187	}
1188
1189	static void
1190	scb (struct ev_signal *w, int revents)
1191	{
1192	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1193	ev_io_stop (&wio);
1194	ev_io_start (&wio);
1195	}
1196
1197	static void
1198	gcb (struct ev_signal *w, int revents)
1199	{
1200	fprintf (stderr, "generic %x\n", revents);
1201
1202	}
1203
1204	int main (void)
1205	{
1206	ev_init (0);
1207
1208	ev_io_init (&wio, sin_cb, 0, EV_READ);
1209	ev_io_start (&wio);
1210
1211	struct ev_timer t[10000];
1212
1213	#if 0
1214	int i;
1215	for (i = 0; i < 10000; ++i)
1216	{
1217	struct ev_timer *w = t + i;
1218	ev_watcher_init (w, ocb, i);
1219	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1220	ev_timer_start (w);
1221	if (drand48 () < 0.5)
1222	ev_timer_stop (w);
1223	}
1224	#endif	1670	#endif
1225		1671
1226	struct ev_timer t1;
1227	ev_timer_init (&t1, ocb, 5, 10);
1228	ev_timer_start (&t1);
1229
1230	struct ev_signal sig;
1231	ev_signal_init (&sig, scb, SIGQUIT);
1232	ev_signal_start (&sig);
1233
1234	struct ev_check cw;
1235	ev_check_init (&cw, gcb);
1236	ev_check_start (&cw);
1237
1238	struct ev_idle iw;
1239	ev_idle_init (&iw, gcb);
1240	ev_idle_start (&iw);
1241
1242	ev_loop (0);
1243
1244	return 0;
1245	}
1246
1247	#endif
1248
1249
1250
1251

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Comparing libev/ev.c (file contents): Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs. Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC