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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.119 by root, Fri Nov 16 01:43:52 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
69	#ifndef EV_USE_KQUEUE	123	#ifndef EV_USE_KQUEUE
70	# define EV_USE_KQUEUE 0	124	# define EV_USE_KQUEUE 0
71	#endif	125	#endif
72		126
73	#ifndef EV_USE_REALTIME	127	#ifndef EV_USE_PORT
74	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
75	#endif	129	#endif
76		130
77	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
78		138
79	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
80	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
81	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
82	#endif	142	#endif
83		143
84	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
85	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
86	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
		147	#endif
		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
87	#endif	151	#endif
88		152
89	/**/	153	/**/
90		154
91	#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) */
92	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	156	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
93	#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 */
94	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	158	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
95		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
96	#include "ev.h"	163	# include "ev.h"
		164	#endif
97		165
98	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
99	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
100	# define inline inline	168	# define inline inline
101	#else	169	#else
…		…
107	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
108		176
109	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
110	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
111		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
112	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
115		186
116	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
117	ev_tstamp ev_now;	276	ev_tstamp ev_rt_now;
118	int ev_method;	277	#define VAR(name,decl) static decl;
		278	#include "ev_vars.h"
		279	#undef VAR
119		280
120	static int have_monotonic; /* runtime */	281	static int ev_default_loop_ptr;
121		282
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	283	#endif
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125		284
126	/*****************************************************************************/	285	/*****************************************************************************/
127		286
128	ev_tstamp	287	ev_tstamp
129	ev_time (void)	288	ev_time (void)
…		…
137	gettimeofday (&tv, 0);	296	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	297	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	298	#endif
140	}	299	}
141		300
142	static ev_tstamp	301	inline ev_tstamp
143	get_clock (void)	302	get_clock (void)
144	{	303	{
145	#if EV_USE_MONOTONIC	304	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	305	if (expect_true (have_monotonic))
147	{	306	{
…		…
152	#endif	311	#endif
153		312
154	return ev_time ();	313	return ev_time ();
155	}	314	}
156		315
		316	#if EV_MULTIPLICITY
		317	ev_tstamp
		318	ev_now (EV_P)
		319	{
		320	return ev_rt_now;
		321	}
		322	#endif
		323
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
158		325
159	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
160	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
161	{ \	328	{ \
162	int newcnt = cur; \	329	int newcnt = cur; \
163	do \	330	do \
164	{ \	331	{ \
165	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
166	} \	333	} \
167	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
168	\	335	\
169	base = realloc (base, sizeof (base) (newcnt)); \	336	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
170	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
171	cur = newcnt; \	338	cur = newcnt; \
172	}	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;
173		351
174	/*****************************************************************************/	352	/*****************************************************************************/
175
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185		353
186	static void	354	static void
187	anfds_init (ANFD *base, int count)	355	anfds_init (ANFD *base, int count)
188	{	356	{
189	while (count--)	357	while (count--)
…		…
194		362
195	++base;	363	++base;
196	}	364	}
197	}	365	}
198		366
199	typedef struct	367	void
		368	ev_feed_event (EV_P_ void *w, int revents)
200	{	369	{
201	W w;	370	W w_ = (W)w;
202	int events;
203	} ANPENDING;
204		371
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void
209	event (W w, int events)
210	{
211	if (w->pending)	372	if (w_->pending)
212	{	373	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
214	return;	375	return;
215	}	376	}
216		377
217	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
218	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
221	}	382	}
222		383
223	static void	384	static void
224	queue_events (W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	386	{
226	int i;	387	int i;
227		388
228	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
230	}	391	}
231		392
232	static void	393	inline void
233	fd_event (int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
234	{	395	{
235	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	397	struct ev_io *w;
237		398
238	for (w = anfd->head; w; w = w->next)	399	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	400	{
240	int ev = w->events & events;	401	int ev = w->events & revents;
241		402
242	if (ev)	403	if (ev)
243	event ((W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
244	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
245	}	412	}
246		413
247	/*****************************************************************************/	414	/*****************************************************************************/
248		415
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	416	static void
253	fd_reify (void)	417	fd_reify (EV_P)
254	{	418	{
255	int i;	419	int i;
256		420
257	for (i = 0; i < fdchangecnt; ++i)	421	for (i = 0; i < fdchangecnt; ++i)
258	{	422	{
…		…
260	ANFD *anfd = anfds + fd;	424	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	425	struct ev_io *w;
262		426
263	int events = 0;	427	int events = 0;
264		428
265	for (w = anfd->head; w; w = w->next)	429	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	430	events \|= w->events;
267		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
268	anfd->reify = 0;	441	anfd->reify = 0;
269		442
270	if (anfd->events != events)
271	{
272	method_modify (fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	444	anfd->events = events;
274	}
275	}	445	}
276		446
277	fdchangecnt = 0;	447	fdchangecnt = 0;
278	}	448	}
279		449
280	static void	450	static void
281	fd_change (int fd)	451	fd_change (EV_P_ int fd)
282	{	452	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	453	if (anfds [fd].reify)
284	return;	454	return;
285		455
286	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
287		457
288	++fdchangecnt;	458	++fdchangecnt;
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
290	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
291	}	461	}
292		462
293	static void	463	static void
294	fd_kill (int fd)	464	fd_kill (EV_P_ int fd)
295	{	465	{
296	struct ev_io *w;	466	struct ev_io *w;
297		467
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
300	{	469	{
301	ev_io_stop (w);	470	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	471	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	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
304	}	483	}
305		484
306	/* called on EBADF to verify fds */	485	/* called on EBADF to verify fds */
307	static void	486	static void
308	fd_ebadf (void)	487	fd_ebadf (EV_P)
309	{	488	{
310	int fd;	489	int fd;
311		490
312	for (fd = 0; fd < anfdmax; ++fd)	491	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	492	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	493	if (!fd_valid (fd) == -1 && errno == EBADF)
315	fd_kill (fd);	494	fd_kill (EV_A_ fd);
316	}	495	}
317		496
318	/* 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 */
319	static void	498	static void
320	fd_enomem (void)	499	fd_enomem (EV_P)
321	{	500	{
322	int fd = anfdmax;	501	int fd;
323		502
324	while (fd--)	503	for (fd = anfdmax; fd--; )
325	if (anfds [fd].events)	504	if (anfds [fd].events)
326	{	505	{
327	close (fd);
328	fd_kill (fd);	506	fd_kill (EV_A_ fd);
329	return;	507	return;
330	}	508	}
331	}	509	}
332		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
333	/*****************************************************************************/	526	/*****************************************************************************/
334		527
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340
341	static void	528	static void
342	upheap (WT *timers, int k)	529	upheap (WT *heap, int k)
343	{	530	{
344	WT w = timers [k];	531	WT w = heap [k];
345		532
346	while (k && timers [k >> 1]->at > w->at)	533	while (k && heap [k >> 1]->at > w->at)
347	{	534	{
348	timers [k] = timers [k >> 1];	535	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
350	k >>= 1;	537	k >>= 1;
351	}	538	}
352		539
353	timers [k] = w;	540	heap [k] = w;
354	timers [k]->active = k + 1;	541	((W)heap [k])->active = k + 1;
355		542
356	}	543	}
357		544
358	static void	545	static void
359	downheap (WT *timers, int N, int k)	546	downheap (WT *heap, int N, int k)
360	{	547	{
361	WT w = timers [k];	548	WT w = heap [k];
362		549
363	while (k < (N >> 1))	550	while (k < (N >> 1))
364	{	551	{
365	int j = k << 1;	552	int j = k << 1;
366		553
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	554	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	555	++j;
369		556
370	if (w->at <= timers [j]->at)	557	if (w->at <= heap [j]->at)
371	break;	558	break;
372		559
373	timers [k] = timers [j];	560	heap [k] = heap [j];
374	timers [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
375	k = j;	562	k = j;
376	}	563	}
377		564
378	timers [k] = w;	565	heap [k] = w;
379	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);
380	}	574	}
381		575
382	/*****************************************************************************/	576	/*****************************************************************************/
383		577
384	typedef struct	578	typedef struct
385	{	579	{
386	struct ev_signal *head;	580	WL head;
387	sig_atomic_t volatile gotsig;	581	sig_atomic_t volatile gotsig;
388	} ANSIG;	582	} ANSIG;
389		583
390	static ANSIG *signals;	584	static ANSIG *signals;
391	static int signalmax;	585	static int signalmax;
…		…
407	}	601	}
408		602
409	static void	603	static void
410	sighandler (int signum)	604	sighandler (int signum)
411	{	605	{
		606	#if _WIN32
		607	signal (signum, sighandler);
		608	#endif
		609
412	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
413		611
414	if (!gotsig)	612	if (!gotsig)
415	{	613	{
		614	int old_errno = errno;
416	gotsig = 1;	615	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
		617	errno = old_errno;
418	}	618	}
419	}	619	}
420		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
421	static void	641	static void
422	sigcb (struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	643	{
424	struct ev_signal *w;
425	int signum;	644	int signum;
426		645
427	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	647	gotsig = 0;
429		648
430	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
431	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
432	{	651	ev_feed_signal_event (EV_A_ signum + 1);
433	signals [signum].gotsig = 0;
434
435	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);
437	}
438	}	652	}
439		653
440	static void	654	inline void
441	siginit (void)	655	fd_intern (int fd)
442	{	656	{
		657	#ifdef _WIN32
		658	int arg = 1;
		659	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		660	#else
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	661	fcntl (fd, F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445
446	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	662	fcntl (fd, F_SETFL, O_NONBLOCK);
448	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]);
449		671
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	673	ev_io_start (EV_A_ &sigev);
		674	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	675	}
453		676
454	/*****************************************************************************/	677	/*****************************************************************************/
455		678
456	static struct ev_idle **idles;
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
		680
		681	#ifndef _WIN32
		682
468	static struct ev_signal childev;	683	static struct ev_signal childev;
469		684
470	#ifndef WCONTINUED	685	#ifndef WCONTINUED
471	# define WCONTINUED 0	686	# define WCONTINUED 0
472	#endif	687	#endif
473		688
474	static void	689	static void
475	childcb (struct ev_signal *sw, int revents)	690	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	691	{
477	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	{
478	int pid, status;	707	int pid, status;
479		708
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	710	{
482	if (w->pid == pid \|\| !w->pid)	711	/* make sure we are called again until all childs have been reaped */
483	{	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	713
485	event ((W)w, EV_CHILD);	714	child_reap (EV_A_ sw, pid, pid, status);
486	}	715	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		716	}
487	}	717	}
		718
		719	#endif
488		720
489	/*****************************************************************************/	721	/*****************************************************************************/
490		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
491	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
493	#endif	728	#endif
494	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
495	# include "ev_epoll.c"	730	# include "ev_epoll.c"
…		…
511	ev_version_minor (void)	746	ev_version_minor (void)
512	{	747	{
513	return EV_VERSION_MINOR;	748	return EV_VERSION_MINOR;
514	}	749	}
515		750
516	/* 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 */
517	static int	752	static int
518	enable_secure ()	753	enable_secure (void)
519	{	754	{
		755	#ifdef _WIN32
		756	return 0;
		757	#else
520	return getuid () != geteuid ()	758	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
		760	#endif
522	}	761	}
523		762
524	int ev_init (int methods)	763	unsigned int
		764	ev_method (EV_P)
525	{	765	{
		766	return method;
		767	}
		768
		769	static void
		770	loop_init (EV_P_ unsigned int flags)
		771	{
526	if (!ev_method)	772	if (!method)
527	{	773	{
528	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
529	{	775	{
530	struct timespec ts;	776	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	778	have_monotonic = 1;
533	}	779	}
534	#endif	780	#endif
535		781
536	ev_now = ev_time ();	782	ev_rt_now = ev_time ();
537	now = get_clock ();	783	mn_now = get_clock ();
538	now_floor = now;	784	now_floor = mn_now;
539	diff = ev_now - now;	785	rtmn_diff = ev_rt_now - mn_now;
540		786
541	if (pipe (sigpipe))	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
542	return 0;
543
544	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
547	else
548	methods = EVMETHOD_ANY;
549		789
		790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
		792
550	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
551	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
553	#endif	799	#endif
554	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
556	#endif	802	#endif
557	#if EV_USE_POLL	803	#if EV_USE_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
559	#endif	805	#endif
560	#if EV_USE_SELECT	806	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
562	#endif	808	#endif
563		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
564	if (ev_method)	936	if (ev_method (EV_A))
565	{	937	{
566	ev_watcher_init (&sigev, sigcb);
567	siginit ();	938	siginit (EV_A);
568		939
		940	#ifndef _WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
		942	ev_set_priority (&childev, EV_MAXPRI);
570	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
571	}	946	}
		947	else
		948	ev_default_loop_ptr = 0;
572	}	949	}
573		950
574	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;
575	}	984	}
576		985
577	/*****************************************************************************/	986	/*****************************************************************************/
578		987
579	void
580	ev_fork_prepare (void)
581	{
582	/* nop */
583	}
584
585	void
586	ev_fork_parent (void)
587	{
588	/* nop */
589	}
590
591	void
592	ev_fork_child (void)
593	{
594	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();
597	#endif
598
599	ev_io_stop (&sigev);
600	close (sigpipe [0]);
601	close (sigpipe [1]);
602	pipe (sigpipe);
603	siginit ();
604	}
605
606	/*****************************************************************************/
607
608	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
609	call_pending (void)	1001	call_pending (EV_P)
610	{	1002	{
611	int pri;	1003	int pri;
612		1004
613	for (pri = NUMPRI; pri--; )	1005	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	1006	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		1009
618	if (p->w)	1010	if (p->w)
619	{	1011	{
620	p->w->pending = 0;	1012	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
622	}	1014	}
623	}	1015	}
624	}	1016	}
625		1017
626	static void	1018	static void
627	timers_reify (void)	1019	timers_reify (EV_P)
628	{	1020	{
629	while (timercnt && timers [0]->at <= now)	1021	while (timercnt && ((WT)timers [0])->at <= mn_now)
630	{	1022	{
631	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)));
632		1026
633	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
634	if (w->repeat)	1028	if (w->repeat)
635	{	1029	{
636	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
637	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
638	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
639	}	1037	}
640	else	1038	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		1040
643	event ((W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
644	}	1042	}
645	}	1043	}
646		1044
		1045	#if EV_PERIODICS
647	static void	1046	static void
648	periodics_reify (void)	1047	periodics_reify (EV_P)
649	{	1048	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
651	{	1050	{
652	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
653		1052
		1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1054
654	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
655	if (w->interval)	1056	if (w->reschedule_cb)
656	{	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	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
660	}	1067	}
661	else	1068	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		1070
664	event ((W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
665	}	1072	}
666	}	1073	}
667		1074
668	static void	1075	static void
669	periodics_reschedule (ev_tstamp diff)	1076	periodics_reschedule (EV_P)
670	{	1077	{
671	int i;	1078	int i;
672		1079
673	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
675	{	1082	{
676	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
677		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
678	if (w->interval)	1087	else if (w->interval)
679	{
680	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;
681
682	if (fabs (diff) >= 1e-4)
683	{
684	ev_periodic_stop (w);
685	ev_periodic_start (w);
686
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}
689	}
690	}	1089	}
691	}
692		1090
693	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
694	time_update_monotonic (void)	1098	time_update_monotonic (EV_P)
695	{	1099	{
696	now = get_clock ();	1100	mn_now = get_clock ();
697		1101
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	1103	{
700	ev_now = now + diff;	1104	ev_rt_now = rtmn_diff + mn_now;
701	return 0;	1105	return 0;
702	}	1106	}
703	else	1107	else
704	{	1108	{
705	now_floor = now;	1109	now_floor = mn_now;
706	ev_now = ev_time ();	1110	ev_rt_now = ev_time ();
707	return 1;	1111	return 1;
708	}	1112	}
709	}	1113	}
710		1114
711	static void	1115	static void
712	time_update (void)	1116	time_update (EV_P)
713	{	1117	{
714	int i;	1118	int i;
715		1119
716	#if EV_USE_MONOTONIC	1120	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1121	if (expect_true (have_monotonic))
718	{	1122	{
719	if (time_update_monotonic ())	1123	if (time_update_monotonic (EV_A))
720	{	1124	{
721	ev_tstamp odiff = diff;	1125	ev_tstamp odiff = rtmn_diff;
722		1126
723	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 */
724	{	1128	{
725	diff = ev_now - now;	1129	rtmn_diff = ev_rt_now - mn_now;
726		1130
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	1132	return; /* all is well */
729		1133
730	ev_now = ev_time ();	1134	ev_rt_now = ev_time ();
731	now = get_clock ();	1135	mn_now = get_clock ();
732	now_floor = now;	1136	now_floor = mn_now;
733	}	1137	}
734		1138
		1139	# if EV_PERIODICS
735	periodics_reschedule (diff - odiff);	1140	periodics_reschedule (EV_A);
		1141	# endif
736	/* 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) */
737	}	1144	}
738	}	1145	}
739	else	1146	else
740	#endif	1147	#endif
741	{	1148	{
742	ev_now = ev_time ();	1149	ev_rt_now = ev_time ();
743		1150
744	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))
745	{	1152	{
		1153	#if EV_PERIODICS
746	periodics_reschedule (ev_now - now);	1154	periodics_reschedule (EV_A);
		1155	#endif
747		1156
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
751	}	1160	}
752		1161
753	now = ev_now;	1162	mn_now = ev_rt_now;
754	}	1163	}
755	}	1164	}
756		1165
757	int ev_loop_done;	1166	void
		1167	ev_ref (EV_P)
		1168	{
		1169	++activecnt;
		1170	}
758		1171
		1172	void
		1173	ev_unref (EV_P)
		1174	{
		1175	--activecnt;
		1176	}
		1177
		1178	static int loop_done;
		1179
		1180	void
759	void ev_loop (int flags)	1181	ev_loop (EV_P_ int flags)
760	{	1182	{
761	double block;	1183	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		1185
764	do	1186	while (activecnt)
765	{	1187	{
766	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
768	{	1190	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	1192	call_pending (EV_A);
771	}	1193	}
772		1194
		1195	/* we might have forked, so reify kernel state if necessary */
		1196	if (expect_false (postfork))
		1197	loop_fork (EV_A);
		1198
773	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
774	fd_reify ();	1200	fd_reify (EV_A);
775		1201
776	/* calculate blocking time */	1202	/* calculate blocking time */
777		1203
778	/* 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
779	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
782	time_update_monotonic ();	1208	time_update_monotonic (EV_A);
783	else	1209	else
784	#endif	1210	#endif
785	{	1211	{
786	ev_now = ev_time ();	1212	ev_rt_now = ev_time ();
787	now = ev_now;	1213	mn_now = ev_rt_now;
788	}	1214	}
789		1215
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	1217	block = 0.;
792	else	1218	else
793	{	1219	{
794	block = MAX_BLOCKTIME;	1220	block = MAX_BLOCKTIME;
795		1221
796	if (timercnt)	1222	if (timercnt)
797	{	1223	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
799	if (block > to) block = to;	1225	if (block > to) block = to;
800	}	1226	}
801		1227
		1228	#if EV_PERIODICS
802	if (periodiccnt)	1229	if (periodiccnt)
803	{	1230	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
805	if (block > to) block = to;	1232	if (block > to) block = to;
806	}	1233	}
		1234	#endif
807		1235
808	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
809	}	1237	}
810		1238
811	method_poll (block);	1239	method_poll (EV_A_ block);
812		1240
813	/* update ev_now, do magic */	1241	/* update ev_rt_now, do magic */
814	time_update ();	1242	time_update (EV_A);
815		1243
816	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
818	periodics_reify (); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
819		1249
820	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		1253
824	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
825	if (checkcnt)	1255	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		1257
828	call_pending ();	1258	call_pending (EV_A);
829	}
830	while (!ev_loop_done);
831		1259
		1260	if (loop_done)
		1261	break;
		1262	}
		1263
832	if (ev_loop_done != 2)	1264	if (loop_done != 2)
833	ev_loop_done = 0;	1265	loop_done = 0;
		1266	}
		1267
		1268	void
		1269	ev_unloop (EV_P_ int how)
		1270	{
		1271	loop_done = how;
834	}	1272	}
835		1273
836	/*****************************************************************************/	1274	/*****************************************************************************/
837		1275
838	static void	1276	inline void
839	wlist_add (WL *head, WL elem)	1277	wlist_add (WL *head, WL elem)
840	{	1278	{
841	elem->next = *head;	1279	elem->next = *head;
842	*head = elem;	1280	*head = elem;
843	}	1281	}
844		1282
845	static void	1283	inline void
846	wlist_del (WL *head, WL elem)	1284	wlist_del (WL *head, WL elem)
847	{	1285	{
848	while (*head)	1286	while (*head)
849	{	1287	{
850	if (*head == elem)	1288	if (*head == elem)
…		…
855		1293
856	head = &(*head)->next;	1294	head = &(*head)->next;
857	}	1295	}
858	}	1296	}
859		1297
860	static void	1298	inline void
861	ev_clear_pending (W w)	1299	ev_clear_pending (EV_P_ W w)
862	{	1300	{
863	if (w->pending)	1301	if (w->pending)
864	{	1302	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1303	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	1304	w->pending = 0;
867	}	1305	}
868	}	1306	}
869		1307
870	static void	1308	inline void
871	ev_start (W w, int active)	1309	ev_start (EV_P_ W w, int active)
872	{	1310	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1311	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1312	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		1313
876	w->active = active;	1314	w->active = active;
		1315	ev_ref (EV_A);
877	}	1316	}
878		1317
879	static void	1318	inline void
880	ev_stop (W w)	1319	ev_stop (EV_P_ W w)
881	{	1320	{
		1321	ev_unref (EV_A);
882	w->active = 0;	1322	w->active = 0;
883	}	1323	}
884		1324
885	/*****************************************************************************/	1325	/*****************************************************************************/
886		1326
887	void	1327	void
888	ev_io_start (struct ev_io *w)	1328	ev_io_start (EV_P_ struct ev_io *w)
889	{	1329	{
890	int fd = w->fd;	1330	int fd = w->fd;
891		1331
892	if (ev_is_active (w))	1332	if (ev_is_active (w))
893	return;	1333	return;
894		1334
895	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
896		1336
897	ev_start ((W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		1340
901	fd_change (fd);	1341	fd_change (EV_A_ fd);
902	}	1342	}
903		1343
904	void	1344	void
905	ev_io_stop (struct ev_io *w)	1345	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1346	{
907	ev_clear_pending ((W)w);	1347	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
909	return;	1349	return;
910		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1354	ev_stop (EV_A_ (W)w);
913		1355
914	fd_change (w->fd);	1356	fd_change (EV_A_ w->fd);
915	}	1357	}
916		1358
917	void	1359	void
918	ev_timer_start (struct ev_timer *w)	1360	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1361	{
920	if (ev_is_active (w))	1362	if (ev_is_active (w))
921	return;	1363	return;
922		1364
923	w->at += now;	1365	((WT)w)->at += mn_now;
924		1366
925	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.));
926		1368
927	ev_start ((W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
929	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
931	}
932		1373
		1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1375	}
		1376
933	void	1377	void
934	ev_timer_stop (struct ev_timer *w)	1378	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1379	{
936	ev_clear_pending ((W)w);	1380	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1381	if (!ev_is_active (w))
938	return;	1382	return;
939		1383
		1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1385
940	if (w->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
941	{	1387	{
942	timers [w->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
943	downheap ((WT *)timers, timercnt, w->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
944	}	1390	}
945		1391
946	w->at = w->repeat;	1392	((WT)w)->at -= mn_now;
947		1393
948	ev_stop ((W)w);	1394	ev_stop (EV_A_ (W)w);
949	}	1395	}
950		1396
951	void	1397	void
952	ev_timer_again (struct ev_timer *w)	1398	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1399	{
954	if (ev_is_active (w))	1400	if (ev_is_active (w))
955	{	1401	{
956	if (w->repeat)	1402	if (w->repeat)
957	{	1403	{
958	w->at = now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
960	}	1406	}
961	else	1407	else
962	ev_timer_stop (w);	1408	ev_timer_stop (EV_A_ w);
963	}	1409	}
964	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
965	ev_timer_start (w);	1413	ev_timer_start (EV_A_ w);
		1414	}
966	}	1415	}
967		1416
		1417	#if EV_PERIODICS
968	void	1418	void
969	ev_periodic_start (struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1420	{
971	if (ev_is_active (w))	1421	if (ev_is_active (w))
972	return;	1422	return;
973		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
974	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.));
975
976	/* 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 */
977	if (w->interval)
978	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	}
979		1432
980	ev_start ((W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
982	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
984	}
985		1437
		1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1439	}
		1440
986	void	1441	void
987	ev_periodic_stop (struct ev_periodic *w)	1442	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1443	{
989	ev_clear_pending ((W)w);	1444	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1445	if (!ev_is_active (w))
991	return;	1446	return;
992		1447
		1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1449
993	if (w->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
994	{	1451	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
997	}	1454	}
998		1455
999	ev_stop ((W)w);	1456	ev_stop (EV_A_ (W)w);
1000	}	1457	}
1001		1458
1002	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
1003	ev_signal_start (struct ev_signal *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1004	{	1470	{
1005	if (ev_is_active (w))	1471	if (ev_is_active (w))
1006	return;	1472	return;
1007		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
1008	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));
1009		1548
1010	ev_start ((W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1552
1014	if (!w->next)	1553	if (!((WL)w)->next)
1015	{	1554	{
		1555	#if _WIN32
		1556	signal (w->signum, sighandler);
		1557	#else
1016	struct sigaction sa;	1558	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1561	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1562	sigaction (w->signum, &sa, 0);
		1563	#endif
1021	}	1564	}
1022	}	1565	}
1023		1566
1024	void	1567	void
1025	ev_signal_stop (struct ev_signal *w)	1568	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1569	{
1027	ev_clear_pending ((W)w);	1570	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1571	if (!ev_is_active (w))
1029	return;	1572	return;
1030		1573
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1574	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1575	ev_stop (EV_A_ (W)w);
1033		1576
1034	if (!signals [w->signum - 1].head)	1577	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1578	signal (w->signum, SIG_DFL);
1036	}	1579	}
1037		1580
1038	void	1581	void
1039	ev_idle_start (struct ev_idle *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1040	{	1583	{
		1584	#if EV_MULTIPLICITY
		1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1586	#endif
1041	if (ev_is_active (w))	1587	if (ev_is_active (w))
1042	return;	1588	return;
1043		1589
1044	ev_start ((W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;
1047	}
1048
1049	void
1050	ev_idle_stop (struct ev_idle *w)
1051	{
1052	ev_clear_pending ((W)w);
1053	if (ev_is_active (w))
1054	return;
1055
1056	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);
1058	}
1059
1060	void
1061	ev_prepare_start (struct ev_prepare *w)
1062	{
1063	if (ev_is_active (w))
1064	return;
1065
1066	ev_start ((W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;
1069	}
1070
1071	void
1072	ev_prepare_stop (struct ev_prepare *w)
1073	{
1074	ev_clear_pending ((W)w);
1075	if (ev_is_active (w))
1076	return;
1077
1078	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);
1080	}
1081
1082	void
1083	ev_check_start (struct ev_check *w)
1084	{
1085	if (ev_is_active (w))
1086	return;
1087
1088	ev_start ((W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;
1091	}
1092
1093	void
1094	ev_check_stop (struct ev_check *w)
1095	{
1096	ev_clear_pending ((W)w);
1097	if (ev_is_active (w))
1098	return;
1099
1100	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);
1102	}
1103
1104	void
1105	ev_child_start (struct ev_child *w)
1106	{
1107	if (ev_is_active (w))
1108	return;
1109
1110	ev_start ((W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1591	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1592	}
1113		1593
1114	void	1594	void
1115	ev_child_stop (struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1596	{
1117	ev_clear_pending ((W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1119	return;	1599	return;
1120		1600
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1602	ev_stop (EV_A_ (W)w);
1123	}	1603	}
1124		1604
1125	/*****************************************************************************/	1605	/*****************************************************************************/
1126		1606
1127	struct ev_once	1607	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1611	void (cb)(int revents, void arg);
1132	void *arg;	1612	void *arg;
1133	};	1613	};
1134		1614
1135	static void	1615	static void
1136	once_cb (struct ev_once *once, int revents)	1616	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1617	{
1138	void (cb)(int revents, void arg) = once->cb;	1618	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1619	void *arg = once->arg;
1140		1620
1141	ev_io_stop (&once->io);	1621	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1622	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1623	ev_free (once);
1144		1624
1145	cb (revents, arg);	1625	cb (revents, arg);
1146	}	1626	}
1147		1627
1148	static void	1628	static void
1149	once_cb_io (struct ev_io *w, int revents)	1629	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1630	{
1151	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);
1152	}	1632	}
1153		1633
1154	static void	1634	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1635	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1636	{
1157	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);
1158	}	1638	}
1159		1639
1160	void	1640	void
1161	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)
1162	{	1642	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1643	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1164		1644
1165	if (!once)	1645	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1167	else	1647	else
1168	{	1648	{
1169	once->cb = cb;	1649	once->cb = cb;
1170	once->arg = arg;	1650	once->arg = arg;
1171		1651
1172	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1653	if (fd >= 0)
1174	{	1654	{
1175	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1656	ev_io_start (EV_A_ &once->io);
1177	}	1657	}
1178		1658
1179	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1660	if (timeout >= 0.)
1181	{	1661	{
1182	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1663	ev_timer_start (EV_A_ &once->to);
1184	}	1664	}
1185	}	1665	}
1186	}	1666	}
1187		1667
1188	/*****************************************************************************/	1668	#ifdef __cplusplus
1189
1190	#if 0
1191
1192	struct ev_io wio;
1193
1194	static void
1195	sin_cb (struct ev_io *w, int revents)
1196	{
1197	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1198	}	1669	}
1199
1200	static void
1201	ocb (struct ev_timer *w, int revents)
1202	{
1203	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1204	ev_timer_stop (w);
1205	ev_timer_start (w);
1206	}
1207
1208	static void
1209	scb (struct ev_signal *w, int revents)
1210	{
1211	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1212	ev_io_stop (&wio);
1213	ev_io_start (&wio);
1214	}
1215
1216	static void
1217	gcb (struct ev_signal *w, int revents)
1218	{
1219	fprintf (stderr, "generic %x\n", revents);
1220
1221	}
1222
1223	int main (void)
1224	{
1225	ev_init (0);
1226
1227	ev_io_init (&wio, sin_cb, 0, EV_READ);
1228	ev_io_start (&wio);
1229
1230	struct ev_timer t[10000];
1231
1232	#if 0
1233	int i;
1234	for (i = 0; i < 10000; ++i)
1235	{
1236	struct ev_timer *w = t + i;
1237	ev_watcher_init (w, ocb, i);
1238	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1239	ev_timer_start (w);
1240	if (drand48 () < 0.5)
1241	ev_timer_stop (w);
1242	}
1243	#endif	1670	#endif
1244		1671
1245	struct ev_timer t1;
1246	ev_timer_init (&t1, ocb, 5, 10);
1247	ev_timer_start (&t1);
1248
1249	struct ev_signal sig;
1250	ev_signal_init (&sig, scb, SIGQUIT);
1251	ev_signal_start (&sig);
1252
1253	struct ev_check cw;
1254	ev_check_init (&cw, gcb);
1255	ev_check_start (&cw);
1256
1257	struct ev_idle iw;
1258	ev_idle_init (&iw, gcb);
1259	ev_idle_start (&iw);
1260
1261	ev_loop (0);
1262
1263	return 0;
1264	}
1265
1266	#endif
1267
1268
1269
1270

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs. Revision 1.119 by root, Fri Nov 16 01:43:52 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.119 by root, Fri Nov 16 01:43:52 2007 UTC