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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 1.72 by root, Tue Nov 6 16:09:37 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	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
		33
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	67	#include <time.h>
50		68
		69	#include <signal.h>
		70
		71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
		74	# include <sys/wait.h>
		75	#endif
51	/**/	76	/**/
52		77
53	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
55	#endif	80	#endif
…		…
66	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
67	#endif	92	#endif
68		93
69	#ifndef EV_USE_KQUEUE	94	#ifndef EV_USE_KQUEUE
70	# define EV_USE_KQUEUE 0	95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
71	#endif	106	#endif
72		107
73	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
74	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
75	#endif	110	#endif
…		…
111		146
112	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
115		150
116	static ev_tstamp now_floor, now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
117	ev_tstamp ev_now;
118	int ev_method;
119		152
120	static int have_monotonic; /* runtime */	153	#if WIN32
		154	/* note: the comment below could not be substantiated, but what would I care */
		155	/* MSDN says this is required to handle SIGFPE */
		156	volatile double SIGFPE_REQ = 0.0f;
121		157
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	158	static int
123	static void (*method_modify)(int fd, int oev, int nev);	159	ev_socketpair_tcp (int filedes [2])
124	static void (*method_poll)(ev_tstamp timeout);	160	{
		161	struct sockaddr_in addr = { 0 };
		162	int addr_size = sizeof (addr);
		163	SOCKET listener;
		164	SOCKET sock [2] = { -1, -1 };
		165
		166	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		167	return -1;
		168
		169	addr.sin_family = AF_INET;
		170	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
		171	addr.sin_port = 0;
		172
		173	if (bind (listener, (struct sockaddr *)&addr, addr_size))
		174	goto fail;
		175
		176	if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
		177	goto fail;
		178
		179	if (listen (listener, 1))
		180	goto fail;
		181
		182	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		183	goto fail;
		184
		185	if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
		186	goto fail;
		187
		188	if ((sock[1] = accept (listener, 0, 0)) < 0)
		189	goto fail;
		190
		191	closesocket (listener);
		192
		193	filedes [0] = sock [0];
		194	filedes [1] = sock [1];
		195
		196	return 0;
		197
		198	fail:
		199	closesocket (listener);
		200
		201	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
		202	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
		203
		204	return -1;
		205	}
		206
		207	# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
		208	#else
		209	# define ev_pipe(filedes) pipe (filedes)
		210	#endif
125		211
126	/*****************************************************************************/	212	/*****************************************************************************/
127		213
128	ev_tstamp	214	static void (*syserr_cb)(const char *msg);
		215
		216	void ev_set_syserr_cb (void (*cb)(const char *msg))
		217	{
		218	syserr_cb = cb;
		219	}
		220
		221	static void
		222	syserr (const char *msg)
		223	{
		224	if (!msg)
		225	msg = "(libev) system error";
		226
		227	if (syserr_cb)
		228	syserr_cb (msg);
		229	else
		230	{
		231	perror (msg);
		232	abort ();
		233	}
		234	}
		235
		236	static void *(*alloc)(void *ptr, long size);
		237
		238	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		239	{
		240	alloc = cb;
		241	}
		242
		243	static void *
		244	ev_realloc (void *ptr, long size)
		245	{
		246	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		247
		248	if (!ptr && size)
		249	{
		250	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		251	abort ();
		252	}
		253
		254	return ptr;
		255	}
		256
		257	#define ev_malloc(size) ev_realloc (0, (size))
		258	#define ev_free(ptr) ev_realloc ((ptr), 0)
		259
		260	/*****************************************************************************/
		261
		262	typedef struct
		263	{
		264	WL head;
		265	unsigned char events;
		266	unsigned char reify;
		267	} ANFD;
		268
		269	typedef struct
		270	{
		271	W w;
		272	int events;
		273	} ANPENDING;
		274
		275	#if EV_MULTIPLICITY
		276
		277	struct ev_loop
		278	{
		279	# define VAR(name,decl) decl;
		280	# include "ev_vars.h"
		281	};
		282	# undef VAR
		283	# include "ev_wrap.h"
		284
		285	#else
		286
		287	# define VAR(name,decl) static decl;
		288	# include "ev_vars.h"
		289	# undef VAR
		290
		291	#endif
		292
		293	/*****************************************************************************/
		294
		295	inline ev_tstamp
129	ev_time (void)	296	ev_time (void)
130	{	297	{
131	#if EV_USE_REALTIME	298	#if EV_USE_REALTIME
132	struct timespec ts;	299	struct timespec ts;
133	clock_gettime (CLOCK_REALTIME, &ts);	300	clock_gettime (CLOCK_REALTIME, &ts);
…		…
137	gettimeofday (&tv, 0);	304	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	305	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	306	#endif
140	}	307	}
141		308
142	static ev_tstamp	309	inline ev_tstamp
143	get_clock (void)	310	get_clock (void)
144	{	311	{
145	#if EV_USE_MONOTONIC	312	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	313	if (expect_true (have_monotonic))
147	{	314	{
…		…
152	#endif	319	#endif
153		320
154	return ev_time ();	321	return ev_time ();
155	}	322	}
156		323
		324	ev_tstamp
		325	ev_now (EV_P)
		326	{
		327	return rt_now;
		328	}
		329
157	#define array_roundsize(base,n) ((n) | 4 & ~3)	330	#define array_roundsize(base,n) ((n) | 4 & ~3)
158		331
159	#define array_needsize(base,cur,cnt,init) \	332	#define array_needsize(base,cur,cnt,init) \
160	if (expect_false ((cnt) > cur)) \	333	if (expect_false ((cnt) > cur)) \
161	{ \	334	{ \
162	int newcnt = cur; \	335	int newcnt = cur; \
163	do \	336	do \
164	{ \	337	{ \
165	newcnt = array_roundsize (base, newcnt << 1); \	338	newcnt = array_roundsize (base, newcnt << 1); \
166	} \	339	} \
167	while ((cnt) > newcnt); \	340	while ((cnt) > newcnt); \
168	\	341	\
169	base = realloc (base, sizeof (*base) * (newcnt)); \	342	base = ev_realloc (base, sizeof (*base) * (newcnt)); \
170	init (base + cur, newcnt - cur); \	343	init (base + cur, newcnt - cur); \
171	cur = newcnt; \	344	cur = newcnt; \
172	}	345	}
		346
		347	#define array_slim(stem) \
		348	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		349	{ \
		350	stem ## max = array_roundsize (stem ## cnt >> 1); \
		351	base = ev_realloc (base, sizeof (*base) * (stem ## max)); \
		352	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		353	}
		354
		355	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		356	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		357	#define array_free_microshit(stem) \
		358	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		359
		360	#define array_free(stem, idx) \
		361	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
173		362
174	/*****************************************************************************/	363	/*****************************************************************************/
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		364
186	static void	365	static void
187	anfds_init (ANFD *base, int count)	366	anfds_init (ANFD *base, int count)
188	{	367	{
189	while (count--)	368	while (count--)
…		…
194		373
195	++base;	374	++base;
196	}	375	}
197	}	376	}
198		377
199	typedef struct
200	{
201	W w;
202	int events;
203	} ANPENDING;
204
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void	378	static void
209	event (W w, int events)	379	event (EV_P_ W w, int events)
210	{	380	{
211	if (w->pending)	381	if (w->pending)
212	{	382	{
213	pendings [ABSPRI (w)][w->pending - 1].events |= events;	383	pendings [ABSPRI (w)][w->pending - 1].events |= events;
214	return;	384	return;
215	}	385	}
216		386
217	w->pending = ++pendingcnt [ABSPRI (w)];	387	w->pending = ++pendingcnt [ABSPRI (w)];
218	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	388	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	389	pendings [ABSPRI (w)][w->pending - 1].w = w;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	390	pendings [ABSPRI (w)][w->pending - 1].events = events;
221	}	391	}
222		392
223	static void	393	static void
224	queue_events (W *events, int eventcnt, int type)	394	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	395	{
226	int i;	396	int i;
227		397
228	for (i = 0; i < eventcnt; ++i)	398	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	399	event (EV_A_ events [i], type);
230	}	400	}
231		401
232	static void	402	static void
233	fd_event (int fd, int events)	403	fd_event (EV_P_ int fd, int events)
234	{	404	{
235	ANFD *anfd = anfds + fd;	405	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	406	struct ev_io *w;
237		407
238	for (w = anfd->head; w; w = w->next)	408	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
239	{	409	{
240	int ev = w->events & events;	410	int ev = w->events & events;
241		411
242	if (ev)	412	if (ev)
243	event ((W)w, ev);	413	event (EV_A_ (W)w, ev);
244	}	414	}
245	}	415	}
246		416
247	/*****************************************************************************/	417	/*****************************************************************************/
248		418
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	419	static void
253	fd_reify (void)	420	fd_reify (EV_P)
254	{	421	{
255	int i;	422	int i;
256		423
257	for (i = 0; i < fdchangecnt; ++i)	424	for (i = 0; i < fdchangecnt; ++i)
258	{	425	{
…		…
260	ANFD *anfd = anfds + fd;	427	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	428	struct ev_io *w;
262		429
263	int events = 0;	430	int events = 0;
264		431
265	for (w = anfd->head; w; w = w->next)	432	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
266	events |= w->events;	433	events |= w->events;
267		434
268	anfd->reify = 0;	435	anfd->reify = 0;
269		436
270	if (anfd->events != events)
271	{
272	method_modify (fd, anfd->events, events);	437	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	438	anfd->events = events;
274	}
275	}	439	}
276		440
277	fdchangecnt = 0;	441	fdchangecnt = 0;
278	}	442	}
279		443
280	static void	444	static void
281	fd_change (int fd)	445	fd_change (EV_P_ int fd)
282	{	446	{
283	if (anfds [fd].reify || fdchangecnt < 0)	447	if (anfds [fd].reify)
284	return;	448	return;
285		449
286	anfds [fd].reify = 1;	450	anfds [fd].reify = 1;
287		451
288	++fdchangecnt;	452	++fdchangecnt;
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
290	fdchanges [fdchangecnt - 1] = fd;	454	fdchanges [fdchangecnt - 1] = fd;
291	}	455	}
292		456
293	static void	457	static void
294	fd_kill (int fd)	458	fd_kill (EV_P_ int fd)
295	{	459	{
296	struct ev_io *w;	460	struct ev_io *w;
297		461
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	462	while ((w = (struct ev_io *)anfds [fd].head))
300	{	463	{
301	ev_io_stop (w);	464	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR | EV_READ | EV_WRITE);	465	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
303	}	466	}
		467	}
		468
		469	static int
		470	fd_valid (int fd)
		471	{
		472	#ifdef WIN32
		473	return !!win32_get_osfhandle (fd);
		474	#else
		475	return fcntl (fd, F_GETFD) != -1;
		476	#endif
304	}	477	}
305		478
306	/* called on EBADF to verify fds */	479	/* called on EBADF to verify fds */
307	static void	480	static void
308	fd_ebadf (void)	481	fd_ebadf (EV_P)
309	{	482	{
310	int fd;	483	int fd;
311		484
312	for (fd = 0; fd < anfdmax; ++fd)	485	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	486	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	487	if (!fd_valid (fd) == -1 && errno == EBADF)
315	fd_kill (fd);	488	fd_kill (EV_A_ fd);
316	}	489	}
317		490
318	/* called on ENOMEM in select/poll to kill some fds and retry */	491	/* called on ENOMEM in select/poll to kill some fds and retry */
319	static void	492	static void
320	fd_enomem (void)	493	fd_enomem (EV_P)
321	{	494	{
322	int fd = anfdmax;	495	int fd;
323		496
324	while (fd--)	497	for (fd = anfdmax; fd--; )
325	if (anfds [fd].events)	498	if (anfds [fd].events)
326	{	499	{
327	close (fd);
328	fd_kill (fd);	500	fd_kill (EV_A_ fd);
329	return;	501	return;
330	}	502	}
331	}	503	}
332		504
		505	/* usually called after fork if method needs to re-arm all fds from scratch */
		506	static void
		507	fd_rearm_all (EV_P)
		508	{
		509	int fd;
		510
		511	/* this should be highly optimised to not do anything but set a flag */
		512	for (fd = 0; fd < anfdmax; ++fd)
		513	if (anfds [fd].events)
		514	{
		515	anfds [fd].events = 0;
		516	fd_change (EV_A_ fd);
		517	}
		518	}
		519
333	/*****************************************************************************/	520	/*****************************************************************************/
334		521
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	522	static void
342	upheap (WT *timers, int k)	523	upheap (WT *heap, int k)
343	{	524	{
344	WT w = timers [k];	525	WT w = heap [k];
345		526
346	while (k && timers [k >> 1]->at > w->at)	527	while (k && heap [k >> 1]->at > w->at)
347	{	528	{
348	timers [k] = timers [k >> 1];	529	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
350	k >>= 1;	531	k >>= 1;
351	}	532	}
352		533
353	timers [k] = w;	534	heap [k] = w;
354	timers [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
355		536
356	}	537	}
357		538
358	static void	539	static void
359	downheap (WT *timers, int N, int k)	540	downheap (WT *heap, int N, int k)
360	{	541	{
361	WT w = timers [k];	542	WT w = heap [k];
362		543
363	while (k < (N >> 1))	544	while (k < (N >> 1))
364	{	545	{
365	int j = k << 1;	546	int j = k << 1;
366		547
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	548	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	549	++j;
369		550
370	if (w->at <= timers [j]->at)	551	if (w->at <= heap [j]->at)
371	break;	552	break;
372		553
373	timers [k] = timers [j];	554	heap [k] = heap [j];
374	timers [k]->active = k + 1;	555	((W)heap [k])->active = k + 1;
375	k = j;	556	k = j;
376	}	557	}
377		558
378	timers [k] = w;	559	heap [k] = w;
379	timers [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
380	}	561	}
381		562
382	/*****************************************************************************/	563	/*****************************************************************************/
383		564
384	typedef struct	565	typedef struct
385	{	566	{
386	struct ev_signal *head;	567	WL head;
387	sig_atomic_t volatile gotsig;	568	sig_atomic_t volatile gotsig;
388	} ANSIG;	569	} ANSIG;
389		570
390	static ANSIG *signals;	571	static ANSIG *signals;
391	static int signalmax;	572	static int signalmax;
…		…
407	}	588	}
408		589
409	static void	590	static void
410	sighandler (int signum)	591	sighandler (int signum)
411	{	592	{
		593	#if WIN32
		594	signal (signum, sighandler);
		595	#endif
		596
412	signals [signum - 1].gotsig = 1;	597	signals [signum - 1].gotsig = 1;
413		598
414	if (!gotsig)	599	if (!gotsig)
415	{	600	{
		601	int old_errno = errno;
416	gotsig = 1;	602	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	603	write (sigpipe [1], &signum, 1);
		604	errno = old_errno;
418	}	605	}
419	}	606	}
420		607
421	static void	608	static void
422	sigcb (struct ev_io *iow, int revents)	609	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	610	{
424	struct ev_signal *w;	611	WL w;
425	int signum;	612	int signum;
426		613
427	read (sigpipe [0], &revents, 1);	614	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	615	gotsig = 0;
429		616
…		…
431	if (signals [signum].gotsig)	618	if (signals [signum].gotsig)
432	{	619	{
433	signals [signum].gotsig = 0;	620	signals [signum].gotsig = 0;
434		621
435	for (w = signals [signum].head; w; w = w->next)	622	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);	623	event (EV_A_ (W)w, EV_SIGNAL);
437	}	624	}
438	}	625	}
439		626
440	static void	627	static void
441	siginit (void)	628	siginit (EV_P)
442	{	629	{
		630	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		633
446	/* rather than sort out wether we really need nb, set it */	634	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		637	#endif
449		638
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	639	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	640	ev_io_start (EV_A_ &sigev);
		641	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	642	}
453		643
454	/*****************************************************************************/	644	/*****************************************************************************/
455		645
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];	646	static struct ev_child *childs [PID_HASHSIZE];
		647
		648	#ifndef WIN32
		649
468	static struct ev_signal childev;	650	static struct ev_signal childev;
469		651
470	#ifndef WCONTINUED	652	#ifndef WCONTINUED
471	# define WCONTINUED 0	653	# define WCONTINUED 0
472	#endif	654	#endif
473		655
474	static void	656	static void
475	childcb (struct ev_signal *sw, int revents)	657	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	658	{
477	struct ev_child *w;	659	struct ev_child *w;
		660
		661	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
		662	if (w->pid == pid || !w->pid)
		663	{
		664	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
		665	w->rpid = pid;
		666	w->rstatus = status;
		667	event (EV_A_ (W)w, EV_CHILD);
		668	}
		669	}
		670
		671	static void
		672	childcb (EV_P_ struct ev_signal *sw, int revents)
		673	{
478	int pid, status;	674	int pid, status;
479		675
480	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	676	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	677	{
482	if (w->pid == pid || !w->pid)	678	/* make sure we are called again until all childs have been reaped */
483	{	679	event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	680
485	event ((W)w, EV_CHILD);	681	child_reap (EV_A_ sw, pid, pid, status);
486	}	682	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		683	}
487	}	684	}
		685
		686	#endif
488		687
489	/*****************************************************************************/	688	/*****************************************************************************/
490		689
491	#if EV_USE_KQUEUE	690	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	691	# include "ev_kqueue.c"
…		…
511	ev_version_minor (void)	710	ev_version_minor (void)
512	{	711	{
513	return EV_VERSION_MINOR;	712	return EV_VERSION_MINOR;
514	}	713	}
515		714
516	/* return true if we are running with elevated privileges and ignore env variables */	715	/* return true if we are running with elevated privileges and should ignore env variables */
517	static int	716	static int
518	enable_secure ()	717	enable_secure (void)
519	{	718	{
		719	#ifdef WIN32
		720	return 0;
		721	#else
520	return getuid () != geteuid ()	722	return getuid () != geteuid ()
521	|| getgid () != getegid ();	723	|| getgid () != getegid ();
		724	#endif
522	}	725	}
523		726
524	int ev_init (int methods)	727	int
		728	ev_method (EV_P)
525	{	729	{
		730	return method;
		731	}
		732
		733	static void
		734	loop_init (EV_P_ int methods)
		735	{
526	if (!ev_method)	736	if (!method)
527	{	737	{
528	#if EV_USE_MONOTONIC	738	#if EV_USE_MONOTONIC
529	{	739	{
530	struct timespec ts;	740	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	742	have_monotonic = 1;
533	}	743	}
534	#endif	744	#endif
535		745
536	ev_now = ev_time ();	746	rt_now = ev_time ();
537	now = get_clock ();	747	mn_now = get_clock ();
538	now_floor = now;	748	now_floor = mn_now;
539	diff = ev_now - now;	749	rtmn_diff = rt_now - mn_now;
540
541	if (pipe (sigpipe))
542	return 0;
543		750
544	if (methods == EVMETHOD_AUTO)	751	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	752	if (!enable_secure () && getenv ("LIBEV_METHODS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	753	methods = atoi (getenv ("LIBEV_METHODS"));
547	else	754	else
548	methods = EVMETHOD_ANY;	755	methods = EVMETHOD_ANY;
549		756
550	ev_method = 0;	757	method = 0;
		758	#if EV_USE_WIN32
		759	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		760	#endif
551	#if EV_USE_KQUEUE	761	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	763	#endif
554	#if EV_USE_EPOLL	764	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	766	#endif
557	#if EV_USE_POLL	767	#if EV_USE_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	769	#endif
560	#if EV_USE_SELECT	770	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	772	#endif
563		773
		774	ev_watcher_init (&sigev, sigcb);
		775	ev_set_priority (&sigev, EV_MAXPRI);
		776	}
		777	}
		778
		779	void
		780	loop_destroy (EV_P)
		781	{
		782	int i;
		783
		784	#if EV_USE_WIN32
		785	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		786	#endif
		787	#if EV_USE_KQUEUE
		788	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		789	#endif
		790	#if EV_USE_EPOLL
		791	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		792	#endif
		793	#if EV_USE_POLL
		794	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		795	#endif
		796	#if EV_USE_SELECT
		797	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		798	#endif
		799
		800	for (i = NUMPRI; i--; )
		801	array_free (pending, [i]);
		802
		803	/* have to use the microsoft-never-gets-it-right macro */
		804	array_free_microshit (fdchange);
		805	array_free_microshit (timer);
		806	array_free_microshit (periodic);
		807	array_free_microshit (idle);
		808	array_free_microshit (prepare);
		809	array_free_microshit (check);
		810
		811	method = 0;
		812	}
		813
		814	static void
		815	loop_fork (EV_P)
		816	{
		817	#if EV_USE_EPOLL
		818	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		819	#endif
		820	#if EV_USE_KQUEUE
		821	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		822	#endif
		823
		824	if (ev_is_active (&sigev))
		825	{
		826	/* default loop */
		827
		828	ev_ref (EV_A);
		829	ev_io_stop (EV_A_ &sigev);
		830	close (sigpipe [0]);
		831	close (sigpipe [1]);
		832
		833	while (ev_pipe (sigpipe))
		834	syserr ("(libev) error creating pipe");
		835
		836	siginit (EV_A);
		837	}
		838
		839	postfork = 0;
		840	}
		841
		842	#if EV_MULTIPLICITY
		843	struct ev_loop *
		844	ev_loop_new (int methods)
		845	{
		846	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
		847
		848	memset (loop, 0, sizeof (struct ev_loop));
		849
		850	loop_init (EV_A_ methods);
		851
		852	if (ev_method (EV_A))
		853	return loop;
		854
		855	return 0;
		856	}
		857
		858	void
		859	ev_loop_destroy (EV_P)
		860	{
		861	loop_destroy (EV_A);
		862	ev_free (loop);
		863	}
		864
		865	void
		866	ev_loop_fork (EV_P)
		867	{
		868	postfork = 1;
		869	}
		870
		871	#endif
		872
		873	#if EV_MULTIPLICITY
		874	struct ev_loop default_loop_struct;
		875	static struct ev_loop *default_loop;
		876
		877	struct ev_loop *
		878	#else
		879	static int default_loop;
		880
		881	int
		882	#endif
		883	ev_default_loop (int methods)
		884	{
		885	if (sigpipe [0] == sigpipe [1])
		886	if (ev_pipe (sigpipe))
		887	return 0;
		888
		889	if (!default_loop)
		890	{
		891	#if EV_MULTIPLICITY
		892	struct ev_loop *loop = default_loop = &default_loop_struct;
		893	#else
		894	default_loop = 1;
		895	#endif
		896
		897	loop_init (EV_A_ methods);
		898
564	if (ev_method)	899	if (ev_method (EV_A))
565	{	900	{
566	ev_watcher_init (&sigev, sigcb);
567	siginit ();	901	siginit (EV_A);
568		902
		903	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
		905	ev_set_priority (&childev, EV_MAXPRI);
570	ev_signal_start (&childev);	906	ev_signal_start (EV_A_ &childev);
		907	ev_unref (EV_A); /* child watcher should not keep loop alive */
		908	#endif
571	}	909	}
		910	else
		911	default_loop = 0;
572	}	912	}
573		913
574	return ev_method;	914	return default_loop;
		915	}
		916
		917	void
		918	ev_default_destroy (void)
		919	{
		920	#if EV_MULTIPLICITY
		921	struct ev_loop *loop = default_loop;
		922	#endif
		923
		924	#ifndef WIN32
		925	ev_ref (EV_A); /* child watcher */
		926	ev_signal_stop (EV_A_ &childev);
		927	#endif
		928
		929	ev_ref (EV_A); /* signal watcher */
		930	ev_io_stop (EV_A_ &sigev);
		931
		932	close (sigpipe [0]); sigpipe [0] = 0;
		933	close (sigpipe [1]); sigpipe [1] = 0;
		934
		935	loop_destroy (EV_A);
		936	}
		937
		938	void
		939	ev_default_fork (void)
		940	{
		941	#if EV_MULTIPLICITY
		942	struct ev_loop *loop = default_loop;
		943	#endif
		944
		945	if (method)
		946	postfork = 1;
575	}	947	}
576		948
577	/*****************************************************************************/	949	/*****************************************************************************/
578		950
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	951	static void
609	call_pending (void)	952	call_pending (EV_P)
610	{	953	{
611	int pri;	954	int pri;
612		955
613	for (pri = NUMPRI; pri--; )	956	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	957	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		960
618	if (p->w)	961	if (p->w)
619	{	962	{
620	p->w->pending = 0;	963	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	964	p->w->cb (EV_A_ p->w, p->events);
622	}	965	}
623	}	966	}
624	}	967	}
625		968
626	static void	969	static void
627	timers_reify (void)	970	timers_reify (EV_P)
628	{	971	{
629	while (timercnt && timers [0]->at <= now)	972	while (timercnt && ((WT)timers [0])->at <= mn_now)
630	{	973	{
631	struct ev_timer *w = timers [0];	974	struct ev_timer *w = timers [0];
		975
		976	assert (("inactive timer on timer heap detected", ev_is_active (w)));
632		977
633	/* first reschedule or stop timer */	978	/* first reschedule or stop timer */
634	if (w->repeat)	979	if (w->repeat)
635	{	980	{
636	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	981	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
637	w->at = now + w->repeat;	982	((WT)w)->at = mn_now + w->repeat;
638	downheap ((WT *)timers, timercnt, 0);	983	downheap ((WT *)timers, timercnt, 0);
639	}	984	}
640	else	985	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		987
643	event ((W)w, EV_TIMEOUT);	988	event (EV_A_ (W)w, EV_TIMEOUT);
644	}	989	}
645	}	990	}
646		991
647	static void	992	static void
648	periodics_reify (void)	993	periodics_reify (EV_P)
649	{	994	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
651	{	996	{
652	struct ev_periodic *w = periodics [0];	997	struct ev_periodic *w = periodics [0];
		998
		999	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
653		1000
654	/* first reschedule or stop timer */	1001	/* first reschedule or stop timer */
655	if (w->interval)	1002	if (w->interval)
656	{	1003	{
657	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1004	((WT)w)->at += floor ((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));	1005	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
659	downheap ((WT *)periodics, periodiccnt, 0);	1006	downheap ((WT *)periodics, periodiccnt, 0);
660	}	1007	}
661	else	1008	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		1010
664	event ((W)w, EV_PERIODIC);	1011	event (EV_A_ (W)w, EV_PERIODIC);
665	}	1012	}
666	}	1013	}
667		1014
668	static void	1015	static void
669	periodics_reschedule (ev_tstamp diff)	1016	periodics_reschedule (EV_P)
670	{	1017	{
671	int i;	1018	int i;
672		1019
673	/* adjust periodics after time jump */	1020	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	1021	for (i = 0; i < periodiccnt; ++i)
675	{	1022	{
676	struct ev_periodic *w = periodics [i];	1023	struct ev_periodic *w = periodics [i];
677		1024
678	if (w->interval)	1025	if (w->interval)
679	{	1026	{
680	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1027	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
681		1028
682	if (fabs (diff) >= 1e-4)	1029	if (fabs (diff) >= 1e-4)
683	{	1030	{
684	ev_periodic_stop (w);	1031	ev_periodic_stop (EV_A_ w);
685	ev_periodic_start (w);	1032	ev_periodic_start (EV_A_ w);
686		1033
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */	1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}	1035	}
689	}	1036	}
690	}	1037	}
691	}	1038	}
692		1039
693	static int	1040	inline int
694	time_update_monotonic (void)	1041	time_update_monotonic (EV_P)
695	{	1042	{
696	now = get_clock ();	1043	mn_now = get_clock ();
697		1044
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	1046	{
700	ev_now = now + diff;	1047	rt_now = rtmn_diff + mn_now;
701	return 0;	1048	return 0;
702	}	1049	}
703	else	1050	else
704	{	1051	{
705	now_floor = now;	1052	now_floor = mn_now;
706	ev_now = ev_time ();	1053	rt_now = ev_time ();
707	return 1;	1054	return 1;
708	}	1055	}
709	}	1056	}
710		1057
711	static void	1058	static void
712	time_update (void)	1059	time_update (EV_P)
713	{	1060	{
714	int i;	1061	int i;
715		1062
716	#if EV_USE_MONOTONIC	1063	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1064	if (expect_true (have_monotonic))
718	{	1065	{
719	if (time_update_monotonic ())	1066	if (time_update_monotonic (EV_A))
720	{	1067	{
721	ev_tstamp odiff = diff;	1068	ev_tstamp odiff = rtmn_diff;
722		1069
723	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1070	for (i = 4; --i; ) /* loop a few times, before making important decisions */
724	{	1071	{
725	diff = ev_now - now;	1072	rtmn_diff = rt_now - mn_now;
726		1073
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	1075	return; /* all is well */
729		1076
730	ev_now = ev_time ();	1077	rt_now = ev_time ();
731	now = get_clock ();	1078	mn_now = get_clock ();
732	now_floor = now;	1079	now_floor = mn_now;
733	}	1080	}
734		1081
735	periodics_reschedule (diff - odiff);	1082	periodics_reschedule (EV_A);
736	/* no timer adjustment, as the monotonic clock doesn't jump */	1083	/* no timer adjustment, as the monotonic clock doesn't jump */
		1084	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
737	}	1085	}
738	}	1086	}
739	else	1087	else
740	#endif	1088	#endif
741	{	1089	{
742	ev_now = ev_time ();	1090	rt_now = ev_time ();
743		1091
744	if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1092	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
745	{	1093	{
746	periodics_reschedule (ev_now - now);	1094	periodics_reschedule (EV_A);
747		1095
748	/* adjust timers. this is easy, as the offset is the same for all */	1096	/* adjust timers. this is easy, as the offset is the same for all */
749	for (i = 0; i < timercnt; ++i)	1097	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	1098	((WT)timers [i])->at += rt_now - mn_now;
751	}	1099	}
752		1100
753	now = ev_now;	1101	mn_now = rt_now;
754	}	1102	}
755	}	1103	}
756		1104
757	int ev_loop_done;	1105	void
		1106	ev_ref (EV_P)
		1107	{
		1108	++activecnt;
		1109	}
758		1110
		1111	void
		1112	ev_unref (EV_P)
		1113	{
		1114	--activecnt;
		1115	}
		1116
		1117	static int loop_done;
		1118
		1119	void
759	void ev_loop (int flags)	1120	ev_loop (EV_P_ int flags)
760	{	1121	{
761	double block;	1122	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1123	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
763		1124
764	do	1125	do
765	{	1126	{
766	/* queue check watchers (and execute them) */	1127	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	1128	if (expect_false (preparecnt))
768	{	1129	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	1131	call_pending (EV_A);
771	}	1132	}
772		1133
		1134	/* we might have forked, so reify kernel state if necessary */
		1135	if (expect_false (postfork))
		1136	loop_fork (EV_A);
		1137
773	/* update fd-related kernel structures */	1138	/* update fd-related kernel structures */
774	fd_reify ();	1139	fd_reify (EV_A);
775		1140
776	/* calculate blocking time */	1141	/* calculate blocking time */
777		1142
778	/* we only need this for !monotonic clockor timers, but as we basically	1143	/* we only need this for !monotonic clockor timers, but as we basically
779	always have timers, we just calculate it always */	1144	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	1145	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	1146	if (expect_true (have_monotonic))
782	time_update_monotonic ();	1147	time_update_monotonic (EV_A);
783	else	1148	else
784	#endif	1149	#endif
785	{	1150	{
786	ev_now = ev_time ();	1151	rt_now = ev_time ();
787	now = ev_now;	1152	mn_now = rt_now;
788	}	1153	}
789		1154
790	if (flags & EVLOOP_NONBLOCK || idlecnt)	1155	if (flags & EVLOOP_NONBLOCK || idlecnt)
791	block = 0.;	1156	block = 0.;
792	else	1157	else
793	{	1158	{
794	block = MAX_BLOCKTIME;	1159	block = MAX_BLOCKTIME;
795		1160
796	if (timercnt)	1161	if (timercnt)
797	{	1162	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
799	if (block > to) block = to;	1164	if (block > to) block = to;
800	}	1165	}
801		1166
802	if (periodiccnt)	1167	if (periodiccnt)
803	{	1168	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
805	if (block > to) block = to;	1170	if (block > to) block = to;
806	}	1171	}
807		1172
808	if (block < 0.) block = 0.;	1173	if (block < 0.) block = 0.;
809	}	1174	}
810		1175
811	method_poll (block);	1176	method_poll (EV_A_ block);
812		1177
813	/* update ev_now, do magic */	1178	/* update rt_now, do magic */
814	time_update ();	1179	time_update (EV_A);
815		1180
816	/* queue pending timers and reschedule them */	1181	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	1182	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	1183	periodics_reify (EV_A); /* absolute timers called first */
819		1184
820	/* queue idle watchers unless io or timers are pending */	1185	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	1186	if (!pendingcnt)
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		1188
824	/* queue check watchers, to be executed first */	1189	/* queue check watchers, to be executed first */
825	if (checkcnt)	1190	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		1192
828	call_pending ();	1193	call_pending (EV_A);
829	}	1194	}
830	while (!ev_loop_done);	1195	while (activecnt && !loop_done);
831		1196
832	if (ev_loop_done != 2)	1197	if (loop_done != 2)
833	ev_loop_done = 0;	1198	loop_done = 0;
		1199	}
		1200
		1201	void
		1202	ev_unloop (EV_P_ int how)
		1203	{
		1204	loop_done = how;
834	}	1205	}
835		1206
836	/*****************************************************************************/	1207	/*****************************************************************************/
837		1208
838	static void	1209	inline void
839	wlist_add (WL *head, WL elem)	1210	wlist_add (WL *head, WL elem)
840	{	1211	{
841	elem->next = *head;	1212	elem->next = *head;
842	*head = elem;	1213	*head = elem;
843	}	1214	}
844		1215
845	static void	1216	inline void
846	wlist_del (WL *head, WL elem)	1217	wlist_del (WL *head, WL elem)
847	{	1218	{
848	while (*head)	1219	while (*head)
849	{	1220	{
850	if (*head == elem)	1221	if (*head == elem)
…		…
855		1226
856	head = &(*head)->next;	1227	head = &(*head)->next;
857	}	1228	}
858	}	1229	}
859		1230
860	static void	1231	inline void
861	ev_clear_pending (W w)	1232	ev_clear_pending (EV_P_ W w)
862	{	1233	{
863	if (w->pending)	1234	if (w->pending)
864	{	1235	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1236	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	1237	w->pending = 0;
867	}	1238	}
868	}	1239	}
869		1240
870	static void	1241	inline void
871	ev_start (W w, int active)	1242	ev_start (EV_P_ W w, int active)
872	{	1243	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1244	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1245	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		1246
876	w->active = active;	1247	w->active = active;
		1248	ev_ref (EV_A);
877	}	1249	}
878		1250
879	static void	1251	inline void
880	ev_stop (W w)	1252	ev_stop (EV_P_ W w)
881	{	1253	{
		1254	ev_unref (EV_A);
882	w->active = 0;	1255	w->active = 0;
883	}	1256	}
884		1257
885	/*****************************************************************************/	1258	/*****************************************************************************/
886		1259
887	void	1260	void
888	ev_io_start (struct ev_io *w)	1261	ev_io_start (EV_P_ struct ev_io *w)
889	{	1262	{
890	int fd = w->fd;	1263	int fd = w->fd;
891		1264
892	if (ev_is_active (w))	1265	if (ev_is_active (w))
893	return;	1266	return;
894		1267
895	assert (("ev_io_start called with negative fd", fd >= 0));	1268	assert (("ev_io_start called with negative fd", fd >= 0));
896		1269
897	ev_start ((W)w, 1);	1270	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		1273
901	fd_change (fd);	1274	fd_change (EV_A_ fd);
902	}	1275	}
903		1276
904	void	1277	void
905	ev_io_stop (struct ev_io *w)	1278	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1279	{
907	ev_clear_pending ((W)w);	1280	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1281	if (!ev_is_active (w))
909	return;	1282	return;
910		1283
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1285	ev_stop (EV_A_ (W)w);
913		1286
914	fd_change (w->fd);	1287	fd_change (EV_A_ w->fd);
915	}	1288	}
916		1289
917	void	1290	void
918	ev_timer_start (struct ev_timer *w)	1291	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1292	{
920	if (ev_is_active (w))	1293	if (ev_is_active (w))
921	return;	1294	return;
922		1295
923	w->at += now;	1296	((WT)w)->at += mn_now;
924		1297
925	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1298	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
926		1299
927	ev_start ((W)w, ++timercnt);	1300	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1301	array_needsize (timers, timermax, timercnt, (void));
929	timers [timercnt - 1] = w;	1302	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1303	upheap ((WT *)timers, timercnt - 1);
931	}
932		1304
		1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1306	}
		1307
933	void	1308	void
934	ev_timer_stop (struct ev_timer *w)	1309	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1310	{
936	ev_clear_pending ((W)w);	1311	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
938	return;	1313	return;
939		1314
		1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1316
940	if (w->active < timercnt--)	1317	if (((W)w)->active < timercnt--)
941	{	1318	{
942	timers [w->active - 1] = timers [timercnt];	1319	timers [((W)w)->active - 1] = timers [timercnt];
943	downheap ((WT *)timers, timercnt, w->active - 1);	1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
944	}	1321	}
945		1322
946	w->at = w->repeat;	1323	((WT)w)->at = w->repeat;
947		1324
948	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
949	}	1326	}
950		1327
951	void	1328	void
952	ev_timer_again (struct ev_timer *w)	1329	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1330	{
954	if (ev_is_active (w))	1331	if (ev_is_active (w))
955	{	1332	{
956	if (w->repeat)	1333	if (w->repeat)
957	{	1334	{
958	w->at = now + w->repeat;	1335	((WT)w)->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
960	}	1337	}
961	else	1338	else
962	ev_timer_stop (w);	1339	ev_timer_stop (EV_A_ w);
963	}	1340	}
964	else if (w->repeat)	1341	else if (w->repeat)
965	ev_timer_start (w);	1342	ev_timer_start (EV_A_ w);
966	}	1343	}
967		1344
968	void	1345	void
969	ev_periodic_start (struct ev_periodic *w)	1346	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1347	{
971	if (ev_is_active (w))	1348	if (ev_is_active (w))
972	return;	1349	return;
973		1350
974	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1351	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
975		1352
976	/* this formula differs from the one in periodic_reify because we do not always round up */	1353	/* this formula differs from the one in periodic_reify because we do not always round up */
977	if (w->interval)	1354	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1355	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
979		1356
980	ev_start ((W)w, ++periodiccnt);	1357	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1358	array_needsize (periodics, periodicmax, periodiccnt, (void));
982	periodics [periodiccnt - 1] = w;	1359	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1360	upheap ((WT *)periodics, periodiccnt - 1);
984	}
985		1361
		1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1363	}
		1364
986	void	1365	void
987	ev_periodic_stop (struct ev_periodic *w)	1366	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1367	{
989	ev_clear_pending ((W)w);	1368	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1369	if (!ev_is_active (w))
991	return;	1370	return;
992		1371
		1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1373
993	if (w->active < periodiccnt--)	1374	if (((W)w)->active < periodiccnt--)
994	{	1375	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
997	}	1378	}
998		1379
999	ev_stop ((W)w);	1380	ev_stop (EV_A_ (W)w);
1000	}	1381	}
1001		1382
1002	void	1383	void
1003	ev_signal_start (struct ev_signal *w)	1384	ev_idle_start (EV_P_ struct ev_idle *w)
1004	{	1385	{
1005	if (ev_is_active (w))	1386	if (ev_is_active (w))
1006	return;	1387	return;
1007		1388
		1389	ev_start (EV_A_ (W)w, ++idlecnt);
		1390	array_needsize (idles, idlemax, idlecnt, (void));
		1391	idles [idlecnt - 1] = w;
		1392	}
		1393
		1394	void
		1395	ev_idle_stop (EV_P_ struct ev_idle *w)
		1396	{
		1397	ev_clear_pending (EV_A_ (W)w);
		1398	if (ev_is_active (w))
		1399	return;
		1400
		1401	idles [((W)w)->active - 1] = idles [--idlecnt];
		1402	ev_stop (EV_A_ (W)w);
		1403	}
		1404
		1405	void
		1406	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1407	{
		1408	if (ev_is_active (w))
		1409	return;
		1410
		1411	ev_start (EV_A_ (W)w, ++preparecnt);
		1412	array_needsize (prepares, preparemax, preparecnt, (void));
		1413	prepares [preparecnt - 1] = w;
		1414	}
		1415
		1416	void
		1417	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1418	{
		1419	ev_clear_pending (EV_A_ (W)w);
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1424	ev_stop (EV_A_ (W)w);
		1425	}
		1426
		1427	void
		1428	ev_check_start (EV_P_ struct ev_check *w)
		1429	{
		1430	if (ev_is_active (w))
		1431	return;
		1432
		1433	ev_start (EV_A_ (W)w, ++checkcnt);
		1434	array_needsize (checks, checkmax, checkcnt, (void));
		1435	checks [checkcnt - 1] = w;
		1436	}
		1437
		1438	void
		1439	ev_check_stop (EV_P_ struct ev_check *w)
		1440	{
		1441	ev_clear_pending (EV_A_ (W)w);
		1442	if (ev_is_active (w))
		1443	return;
		1444
		1445	checks [((W)w)->active - 1] = checks [--checkcnt];
		1446	ev_stop (EV_A_ (W)w);
		1447	}
		1448
		1449	#ifndef SA_RESTART
		1450	# define SA_RESTART 0
		1451	#endif
		1452
		1453	void
		1454	ev_signal_start (EV_P_ struct ev_signal *w)
		1455	{
		1456	#if EV_MULTIPLICITY
		1457	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1458	#endif
		1459	if (ev_is_active (w))
		1460	return;
		1461
1008	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1462	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1009		1463
1010	ev_start ((W)w, 1);	1464	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1465	array_needsize (signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1467
1014	if (!w->next)	1468	if (!((WL)w)->next)
1015	{	1469	{
		1470	#if WIN32
		1471	signal (w->signum, sighandler);
		1472	#else
1016	struct sigaction sa;	1473	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1474	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1475	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1476	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1477	sigaction (w->signum, &sa, 0);
		1478	#endif
1021	}	1479	}
1022	}	1480	}
1023		1481
1024	void	1482	void
1025	ev_signal_stop (struct ev_signal *w)	1483	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1484	{
1027	ev_clear_pending ((W)w);	1485	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1486	if (!ev_is_active (w))
1029	return;	1487	return;
1030		1488
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1489	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1490	ev_stop (EV_A_ (W)w);
1033		1491
1034	if (!signals [w->signum - 1].head)	1492	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1493	signal (w->signum, SIG_DFL);
1036	}	1494	}
1037		1495
1038	void	1496	void
1039	ev_idle_start (struct ev_idle *w)	1497	ev_child_start (EV_P_ struct ev_child *w)
1040	{	1498	{
		1499	#if EV_MULTIPLICITY
		1500	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1501	#endif
1041	if (ev_is_active (w))	1502	if (ev_is_active (w))
1042	return;	1503	return;
1043		1504
1044	ev_start ((W)w, ++idlecnt);	1505	ev_start (EV_A_ (W)w, 1);
1045	array_needsize (idles, idlemax, idlecnt, );	1506	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1046	idles [idlecnt - 1] = w;
1047	}	1507	}
1048		1508
1049	void	1509	void
1050	ev_idle_stop (struct ev_idle *w)	1510	ev_child_stop (EV_P_ struct ev_child *w)
1051	{	1511	{
1052	ev_clear_pending ((W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1513	if (ev_is_active (w))
1054	return;	1514	return;
1055		1515
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);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}
1113
1114	void
1115	ev_child_stop (struct ev_child *w)
1116	{
1117	ev_clear_pending ((W)w);
1118	if (ev_is_active (w))
1119	return;
1120
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1517	ev_stop (EV_A_ (W)w);
1123	}	1518	}
1124		1519
1125	/*****************************************************************************/	1520	/*****************************************************************************/
1126		1521
1127	struct ev_once	1522	struct ev_once
…		…
1131	void (*cb)(int revents, void *arg);	1526	void (*cb)(int revents, void *arg);
1132	void *arg;	1527	void *arg;
1133	};	1528	};
1134		1529
1135	static void	1530	static void
1136	once_cb (struct ev_once *once, int revents)	1531	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1532	{
1138	void (*cb)(int revents, void *arg) = once->cb;	1533	void (*cb)(int revents, void *arg) = once->cb;
1139	void *arg = once->arg;	1534	void *arg = once->arg;
1140		1535
1141	ev_io_stop (&once->io);	1536	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1537	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1538	ev_free (once);
1144		1539
1145	cb (revents, arg);	1540	cb (revents, arg);
1146	}	1541	}
1147		1542
1148	static void	1543	static void
1149	once_cb_io (struct ev_io *w, int revents)	1544	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1545	{
1151	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	1546	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1152	}	1547	}
1153		1548
1154	static void	1549	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1550	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1551	{
1157	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	1552	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1158	}	1553	}
1159		1554
1160	void	1555	void
1161	ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1556	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1162	{	1557	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1164		1559
1165	if (!once)	1560	if (!once)
1166	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1561	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1167	else	1562	else
1168	{	1563	{
…		…
1171		1566
1172	ev_watcher_init (&once->io, once_cb_io);	1567	ev_watcher_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1568	if (fd >= 0)
1174	{	1569	{
1175	ev_io_set (&once->io, fd, events);	1570	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1571	ev_io_start (EV_A_ &once->io);
1177	}	1572	}
1178		1573
1179	ev_watcher_init (&once->to, once_cb_to);	1574	ev_watcher_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1575	if (timeout >= 0.)
1181	{	1576	{
1182	ev_timer_set (&once->to, timeout, 0.);	1577	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1578	ev_timer_start (EV_A_ &once->to);
1184	}	1579	}
1185	}	1580	}
1186	}	1581	}
1187		1582
1188	/*****************************************************************************/
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	}
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
1244
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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