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Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.78 by root, Thu Nov 8 21:08:56 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
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	88	#endif
64		89
65	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		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
67	#endif	106	#endif
68		107
69	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
71	#endif	110	#endif
…		…
107		146
108	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
111		150
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
113	ev_tstamp ev_now;
114	int ev_method;
115		152
116	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		154
122	/*****************************************************************************/	155	/*****************************************************************************/
123		156
124	ev_tstamp	157	static void (*syserr_cb)(const char *msg);
		158
		159	void ev_set_syserr_cb (void (*cb)(const char *msg))
		160	{
		161	syserr_cb = cb;
		162	}
		163
		164	static void
		165	syserr (const char *msg)
		166	{
		167	if (!msg)
		168	msg = "(libev) system error";
		169
		170	if (syserr_cb)
		171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
		178
		179	static void *(*alloc)(void *ptr, long size);
		180
		181	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		182	{
		183	alloc = cb;
		184	}
		185
		186	static void *
		187	ev_realloc (void *ptr, long size)
		188	{
		189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		190
		191	if (!ptr && size)
		192	{
		193	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		194	abort ();
		195	}
		196
		197	return ptr;
		198	}
		199
		200	#define ev_malloc(size) ev_realloc (0, (size))
		201	#define ev_free(ptr) ev_realloc ((ptr), 0)
		202
		203	/*****************************************************************************/
		204
		205	typedef struct
		206	{
		207	WL head;
		208	unsigned char events;
		209	unsigned char reify;
		210	} ANFD;
		211
		212	typedef struct
		213	{
		214	W w;
		215	int events;
		216	} ANPENDING;
		217
		218	#if EV_MULTIPLICITY
		219
		220	struct ev_loop
		221	{
		222	# define VAR(name,decl) decl;
		223	# include "ev_vars.h"
		224	};
		225	# undef VAR
		226	# include "ev_wrap.h"
		227
		228	#else
		229
		230	# define VAR(name,decl) static decl;
		231	# include "ev_vars.h"
		232	# undef VAR
		233
		234	#endif
		235
		236	/*****************************************************************************/
		237
		238	inline ev_tstamp
125	ev_time (void)	239	ev_time (void)
126	{	240	{
127	#if EV_USE_REALTIME	241	#if EV_USE_REALTIME
128	struct timespec ts;	242	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	243	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	247	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	248	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	249	#endif
136	}	250	}
137		251
138	static ev_tstamp	252	inline ev_tstamp
139	get_clock (void)	253	get_clock (void)
140	{	254	{
141	#if EV_USE_MONOTONIC	255	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	256	if (expect_true (have_monotonic))
143	{	257	{
…		…
148	#endif	262	#endif
149		263
150	return ev_time ();	264	return ev_time ();
151	}	265	}
152		266
		267	ev_tstamp
		268	ev_now (EV_P)
		269	{
		270	return rt_now;
		271	}
		272
153	#define array_roundsize(base,n) ((n) | 4 & ~3)	273	#define array_roundsize(type,n) ((n) | 4 & ~3)
154		274
155	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
156	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
157	{ \	277	{ \
158	int newcnt = cur; \	278	int newcnt = cur; \
159	do \	279	do \
160	{ \	280	{ \
161	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
162	} \	282	} \
163	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
164	\	284	\
165	base = realloc (base, sizeof (*base) * (newcnt)); \	285	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
166	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
167	cur = newcnt; \	287	cur = newcnt; \
168	}	288	}
		289
		290	#define array_slim(type,stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
		295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		296	}
		297
		298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		300	#define array_free_microshit(stem) \
		301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		302
		303	#define array_free(stem, idx) \
		304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
169		305
170	/*****************************************************************************/	306	/*****************************************************************************/
171
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181		307
182	static void	308	static void
183	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
184	{	310	{
185	while (count--)	311	while (count--)
…		…
190		316
191	++base;	317	++base;
192	}	318	}
193	}	319	}
194		320
195	typedef struct	321	void
		322	ev_feed_event (EV_P_ void *w, int revents)
196	{	323	{
197	W w;	324	W w_ = (W)w;
198	int events;
199	} ANPENDING;
200		325
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void
205	event (W w, int events)
206	{
207	if (w->pending)	326	if (w_->pending)
208	{	327	{
209	pendings [ABSPRI (w)][w->pending - 1].events |= events;	328	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
210	return;	329	return;
211	}	330	}
212		331
213	w->pending = ++pendingcnt [ABSPRI (w)];	332	w_->pending = ++pendingcnt [ABSPRI (w_)];
214	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
217	}	336	}
218		337
219	static void	338	static void
220	queue_events (W *events, int eventcnt, int type)	339	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	340	{
222	int i;	341	int i;
223		342
224	for (i = 0; i < eventcnt; ++i)	343	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	344	ev_feed_event (EV_A_ events [i], type);
226	}	345	}
227		346
228	static void	347	static void
229	fd_event (int fd, int events)	348	fd_event (EV_P_ int fd, int events)
230	{	349	{
231	ANFD *anfd = anfds + fd;	350	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	351	struct ev_io *w;
233		352
234	for (w = anfd->head; w; w = w->next)	353	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
235	{	354	{
236	int ev = w->events & events;	355	int ev = w->events & events;
237		356
238	if (ev)	357	if (ev)
239	event ((W)w, ev);	358	ev_feed_event (EV_A_ (W)w, ev);
240	}	359	}
241	}	360	}
242		361
243	/*****************************************************************************/	362	/*****************************************************************************/
244		363
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	364	static void
249	fd_reify (void)	365	fd_reify (EV_P)
250	{	366	{
251	int i;	367	int i;
252		368
253	for (i = 0; i < fdchangecnt; ++i)	369	for (i = 0; i < fdchangecnt; ++i)
254	{	370	{
…		…
256	ANFD *anfd = anfds + fd;	372	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	373	struct ev_io *w;
258		374
259	int events = 0;	375	int events = 0;
260		376
261	for (w = anfd->head; w; w = w->next)	377	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
262	events |= w->events;	378	events |= w->events;
263		379
264	anfd->reify = 0;	380	anfd->reify = 0;
265		381
266	if (anfd->events != events)
267	{
268	method_modify (fd, anfd->events, events);	382	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	383	anfd->events = events;
270	}
271	}	384	}
272		385
273	fdchangecnt = 0;	386	fdchangecnt = 0;
274	}	387	}
275		388
276	static void	389	static void
277	fd_change (int fd)	390	fd_change (EV_P_ int fd)
278	{	391	{
279	if (anfds [fd].reify || fdchangecnt < 0)	392	if (anfds [fd].reify)
280	return;	393	return;
281		394
282	anfds [fd].reify = 1;	395	anfds [fd].reify = 1;
283		396
284	++fdchangecnt;	397	++fdchangecnt;
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
286	fdchanges [fdchangecnt - 1] = fd;	399	fdchanges [fdchangecnt - 1] = fd;
287	}	400	}
288		401
289	static void	402	static void
290	fd_kill (int fd)	403	fd_kill (EV_P_ int fd)
291	{	404	{
292	struct ev_io *w;	405	struct ev_io *w;
293		406
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	407	while ((w = (struct ev_io *)anfds [fd].head))
296	{	408	{
297	ev_io_stop (w);	409	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR | EV_READ | EV_WRITE);	410	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
299	}	411	}
		412	}
		413
		414	static int
		415	fd_valid (int fd)
		416	{
		417	#ifdef WIN32
		418	return !!win32_get_osfhandle (fd);
		419	#else
		420	return fcntl (fd, F_GETFD) != -1;
		421	#endif
300	}	422	}
301		423
302	/* called on EBADF to verify fds */	424	/* called on EBADF to verify fds */
303	static void	425	static void
304	fd_ebadf (void)	426	fd_ebadf (EV_P)
305	{	427	{
306	int fd;	428	int fd;
307		429
308	for (fd = 0; fd < anfdmax; ++fd)	430	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	431	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	432	if (!fd_valid (fd) == -1 && errno == EBADF)
311	fd_kill (fd);	433	fd_kill (EV_A_ fd);
312	}	434	}
313		435
314	/* called on ENOMEM in select/poll to kill some fds and retry */	436	/* called on ENOMEM in select/poll to kill some fds and retry */
315	static void	437	static void
316	fd_enomem (void)	438	fd_enomem (EV_P)
317	{	439	{
318	int fd = anfdmax;	440	int fd;
319		441
320	while (fd--)	442	for (fd = anfdmax; fd--; )
321	if (anfds [fd].events)	443	if (anfds [fd].events)
322	{	444	{
323	close (fd);
324	fd_kill (fd);	445	fd_kill (EV_A_ fd);
325	return;	446	return;
326	}	447	}
327	}	448	}
328		449
		450	/* usually called after fork if method needs to re-arm all fds from scratch */
		451	static void
		452	fd_rearm_all (EV_P)
		453	{
		454	int fd;
		455
		456	/* this should be highly optimised to not do anything but set a flag */
		457	for (fd = 0; fd < anfdmax; ++fd)
		458	if (anfds [fd].events)
		459	{
		460	anfds [fd].events = 0;
		461	fd_change (EV_A_ fd);
		462	}
		463	}
		464
329	/*****************************************************************************/	465	/*****************************************************************************/
330		466
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	467	static void
338	upheap (WT *timers, int k)	468	upheap (WT *heap, int k)
339	{	469	{
340	WT w = timers [k];	470	WT w = heap [k];
341		471
342	while (k && timers [k >> 1]->at > w->at)	472	while (k && heap [k >> 1]->at > w->at)
343	{	473	{
344	timers [k] = timers [k >> 1];	474	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	475	((W)heap [k])->active = k + 1;
346	k >>= 1;	476	k >>= 1;
347	}	477	}
348		478
349	timers [k] = w;	479	heap [k] = w;
350	timers [k]->active = k + 1;	480	((W)heap [k])->active = k + 1;
351		481
352	}	482	}
353		483
354	static void	484	static void
355	downheap (WT *timers, int N, int k)	485	downheap (WT *heap, int N, int k)
356	{	486	{
357	WT w = timers [k];	487	WT w = heap [k];
358		488
359	while (k < (N >> 1))	489	while (k < (N >> 1))
360	{	490	{
361	int j = k << 1;	491	int j = k << 1;
362		492
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	493	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	494	++j;
365		495
366	if (w->at <= timers [j]->at)	496	if (w->at <= heap [j]->at)
367	break;	497	break;
368		498
369	timers [k] = timers [j];	499	heap [k] = heap [j];
370	timers [k]->active = k + 1;	500	((W)heap [k])->active = k + 1;
371	k = j;	501	k = j;
372	}	502	}
373		503
374	timers [k] = w;	504	heap [k] = w;
375	timers [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
376	}	506	}
377		507
378	/*****************************************************************************/	508	/*****************************************************************************/
379		509
380	typedef struct	510	typedef struct
381	{	511	{
382	struct ev_signal *head;	512	WL head;
383	sig_atomic_t volatile gotsig;	513	sig_atomic_t volatile gotsig;
384	} ANSIG;	514	} ANSIG;
385		515
386	static ANSIG *signals;	516	static ANSIG *signals;
387	static int signalmax;	517	static int signalmax;
…		…
403	}	533	}
404		534
405	static void	535	static void
406	sighandler (int signum)	536	sighandler (int signum)
407	{	537	{
		538	#if WIN32
		539	signal (signum, sighandler);
		540	#endif
		541
408	signals [signum - 1].gotsig = 1;	542	signals [signum - 1].gotsig = 1;
409		543
410	if (!gotsig)	544	if (!gotsig)
411	{	545	{
		546	int old_errno = errno;
412	gotsig = 1;	547	gotsig = 1;
		548	#ifdef WIN32
		549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		550	#else
413	write (sigpipe [1], &signum, 1);	551	write (sigpipe [1], &signum, 1);
		552	#endif
		553	errno = old_errno;
414	}	554	}
415	}	555	}
416		556
417	static void	557	static void
418	sigcb (struct ev_io *iow, int revents)	558	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	559	{
420	struct ev_signal *w;	560	WL w;
421	int signum;	561	int signum;
422		562
		563	#ifdef WIN32
		564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		565	#else
423	read (sigpipe [0], &revents, 1);	566	read (sigpipe [0], &revents, 1);
		567	#endif
424	gotsig = 0;	568	gotsig = 0;
425		569
426	for (signum = signalmax; signum--; )	570	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	571	if (signals [signum].gotsig)
428	{	572	{
429	signals [signum].gotsig = 0;	573	signals [signum].gotsig = 0;
430		574
431	for (w = signals [signum].head; w; w = w->next)	575	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);	576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
433	}	577	}
434	}	578	}
435		579
436	static void	580	static void
437	siginit (void)	581	siginit (EV_P)
438	{	582	{
		583	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	584	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	585	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		586
442	/* rather than sort out wether we really need nb, set it */	587	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	588	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	589	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		590	#endif
445		591
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	592	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	593	ev_io_start (EV_A_ &sigev);
		594	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	595	}
449		596
450	/*****************************************************************************/	597	/*****************************************************************************/
451		598
452	static struct ev_idle **idles;
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];	599	static struct ev_child *childs [PID_HASHSIZE];
		600
		601	#ifndef WIN32
		602
464	static struct ev_signal childev;	603	static struct ev_signal childev;
465		604
466	#ifndef WCONTINUED	605	#ifndef WCONTINUED
467	# define WCONTINUED 0	606	# define WCONTINUED 0
468	#endif	607	#endif
469		608
470	static void	609	static void
471	childcb (struct ev_signal *sw, int revents)	610	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	611	{
473	struct ev_child *w;	612	struct ev_child *w;
		613
		614	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
		615	if (w->pid == pid || !w->pid)
		616	{
		617	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
		618	w->rpid = pid;
		619	w->rstatus = status;
		620	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		621	}
		622	}
		623
		624	static void
		625	childcb (EV_P_ struct ev_signal *sw, int revents)
		626	{
474	int pid, status;	627	int pid, status;
475		628
476	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	629	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	630	{
478	if (w->pid == pid || !w->pid)	631	/* make sure we are called again until all childs have been reaped */
479	{	632	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	633
481	event ((W)w, EV_CHILD);	634	child_reap (EV_A_ sw, pid, pid, status);
482	}	635	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		636	}
483	}	637	}
		638
		639	#endif
484		640
485	/*****************************************************************************/	641	/*****************************************************************************/
486		642
		643	#if EV_USE_KQUEUE
		644	# include "ev_kqueue.c"
		645	#endif
487	#if EV_USE_EPOLL	646	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	647	# include "ev_epoll.c"
489	#endif	648	#endif
490	#if EV_USE_POLL	649	#if EV_USE_POLL
491	# include "ev_poll.c"	650	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	663	ev_version_minor (void)
505	{	664	{
506	return EV_VERSION_MINOR;	665	return EV_VERSION_MINOR;
507	}	666	}
508		667
509	/* return true if we are running with elevated privileges and ignore env variables */	668	/* return true if we are running with elevated privileges and should ignore env variables */
510	static int	669	static int
511	enable_secure ()	670	enable_secure (void)
512	{	671	{
		672	#ifdef WIN32
		673	return 0;
		674	#else
513	return getuid () != geteuid ()	675	return getuid () != geteuid ()
514	|| getgid () != getegid ();	676	|| getgid () != getegid ();
		677	#endif
515	}	678	}
516		679
517	int ev_init (int methods)	680	int
		681	ev_method (EV_P)
518	{	682	{
		683	return method;
		684	}
		685
		686	static void
		687	loop_init (EV_P_ int methods)
		688	{
519	if (!ev_method)	689	if (!method)
520	{	690	{
521	#if EV_USE_MONOTONIC	691	#if EV_USE_MONOTONIC
522	{	692	{
523	struct timespec ts;	693	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	694	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	695	have_monotonic = 1;
526	}	696	}
527	#endif	697	#endif
528		698
529	ev_now = ev_time ();	699	rt_now = ev_time ();
530	now = get_clock ();	700	mn_now = get_clock ();
531	now_floor = now;	701	now_floor = mn_now;
532	diff = ev_now - now;	702	rtmn_diff = rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		703
537	if (methods == EVMETHOD_AUTO)	704	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	705	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	706	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	707	else
541	methods = EVMETHOD_ANY;	708	methods = EVMETHOD_ANY;
542		709
543	ev_method = 0;	710	method = 0;
		711	#if EV_USE_WIN32
		712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		713	#endif
		714	#if EV_USE_KQUEUE
		715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		716	#endif
544	#if EV_USE_EPOLL	717	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	719	#endif
547	#if EV_USE_POLL	720	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	722	#endif
550	#if EV_USE_SELECT	723	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	725	#endif
553		726
		727	ev_watcher_init (&sigev, sigcb);
		728	ev_set_priority (&sigev, EV_MAXPRI);
		729	}
		730	}
		731
		732	void
		733	loop_destroy (EV_P)
		734	{
		735	int i;
		736
		737	#if EV_USE_WIN32
		738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		739	#endif
		740	#if EV_USE_KQUEUE
		741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		742	#endif
		743	#if EV_USE_EPOLL
		744	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		745	#endif
		746	#if EV_USE_POLL
		747	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		748	#endif
		749	#if EV_USE_SELECT
		750	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		751	#endif
		752
		753	for (i = NUMPRI; i--; )
		754	array_free (pending, [i]);
		755
		756	/* have to use the microsoft-never-gets-it-right macro */
		757	array_free_microshit (fdchange);
		758	array_free_microshit (timer);
		759	array_free_microshit (periodic);
		760	array_free_microshit (idle);
		761	array_free_microshit (prepare);
		762	array_free_microshit (check);
		763
		764	method = 0;
		765	}
		766
		767	static void
		768	loop_fork (EV_P)
		769	{
		770	#if EV_USE_EPOLL
		771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		772	#endif
		773	#if EV_USE_KQUEUE
		774	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		775	#endif
		776
		777	if (ev_is_active (&sigev))
		778	{
		779	/* default loop */
		780
		781	ev_ref (EV_A);
		782	ev_io_stop (EV_A_ &sigev);
		783	close (sigpipe [0]);
		784	close (sigpipe [1]);
		785
		786	while (pipe (sigpipe))
		787	syserr ("(libev) error creating pipe");
		788
		789	siginit (EV_A);
		790	}
		791
		792	postfork = 0;
		793	}
		794
		795	#if EV_MULTIPLICITY
		796	struct ev_loop *
		797	ev_loop_new (int methods)
		798	{
		799	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
		800
		801	memset (loop, 0, sizeof (struct ev_loop));
		802
		803	loop_init (EV_A_ methods);
		804
		805	if (ev_method (EV_A))
		806	return loop;
		807
		808	return 0;
		809	}
		810
		811	void
		812	ev_loop_destroy (EV_P)
		813	{
		814	loop_destroy (EV_A);
		815	ev_free (loop);
		816	}
		817
		818	void
		819	ev_loop_fork (EV_P)
		820	{
		821	postfork = 1;
		822	}
		823
		824	#endif
		825
		826	#if EV_MULTIPLICITY
		827	struct ev_loop default_loop_struct;
		828	static struct ev_loop *default_loop;
		829
		830	struct ev_loop *
		831	#else
		832	static int default_loop;
		833
		834	int
		835	#endif
		836	ev_default_loop (int methods)
		837	{
		838	if (sigpipe [0] == sigpipe [1])
		839	if (pipe (sigpipe))
		840	return 0;
		841
		842	if (!default_loop)
		843	{
		844	#if EV_MULTIPLICITY
		845	struct ev_loop *loop = default_loop = &default_loop_struct;
		846	#else
		847	default_loop = 1;
		848	#endif
		849
		850	loop_init (EV_A_ methods);
		851
554	if (ev_method)	852	if (ev_method (EV_A))
555	{	853	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	854	siginit (EV_A);
558		855
		856	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	857	ev_signal_init (&childev, childcb, SIGCHLD);
		858	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	859	ev_signal_start (EV_A_ &childev);
		860	ev_unref (EV_A); /* child watcher should not keep loop alive */
		861	#endif
561	}	862	}
		863	else
		864	default_loop = 0;
562	}	865	}
563		866
564	return ev_method;	867	return default_loop;
		868	}
		869
		870	void
		871	ev_default_destroy (void)
		872	{
		873	#if EV_MULTIPLICITY
		874	struct ev_loop *loop = default_loop;
		875	#endif
		876
		877	#ifndef WIN32
		878	ev_ref (EV_A); /* child watcher */
		879	ev_signal_stop (EV_A_ &childev);
		880	#endif
		881
		882	ev_ref (EV_A); /* signal watcher */
		883	ev_io_stop (EV_A_ &sigev);
		884
		885	close (sigpipe [0]); sigpipe [0] = 0;
		886	close (sigpipe [1]); sigpipe [1] = 0;
		887
		888	loop_destroy (EV_A);
		889	}
		890
		891	void
		892	ev_default_fork (void)
		893	{
		894	#if EV_MULTIPLICITY
		895	struct ev_loop *loop = default_loop;
		896	#endif
		897
		898	if (method)
		899	postfork = 1;
565	}	900	}
566		901
567	/*****************************************************************************/	902	/*****************************************************************************/
568		903
569	void
570	ev_fork_prepare (void)
571	{
572	/* nop */
573	}
574
575	void
576	ev_fork_parent (void)
577	{
578	/* nop */
579	}
580
581	void
582	ev_fork_child (void)
583	{
584	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();
587	#endif
588
589	ev_io_stop (&sigev);
590	close (sigpipe [0]);
591	close (sigpipe [1]);
592	pipe (sigpipe);
593	siginit ();
594	}
595
596	/*****************************************************************************/
597
598	static void	904	static int
		905	any_pending (EV_P)
		906	{
		907	int pri;
		908
		909	for (pri = NUMPRI; pri--; )
		910	if (pendingcnt [pri])
		911	return 1;
		912
		913	return 0;
		914	}
		915
		916	static void
599	call_pending (void)	917	call_pending (EV_P)
600	{	918	{
601	int pri;	919	int pri;
602		920
603	for (pri = NUMPRI; pri--; )	921	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	922	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	924	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		925
608	if (p->w)	926	if (p->w)
609	{	927	{
610	p->w->pending = 0;	928	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	929	p->w->cb (EV_A_ p->w, p->events);
612	}	930	}
613	}	931	}
614	}	932	}
615		933
616	static void	934	static void
617	timers_reify (void)	935	timers_reify (EV_P)
618	{	936	{
619	while (timercnt && timers [0]->at <= now)	937	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	938	{
621	struct ev_timer *w = timers [0];	939	struct ev_timer *w = timers [0];
		940
		941	assert (("inactive timer on timer heap detected", ev_is_active (w)));
622		942
623	/* first reschedule or stop timer */	943	/* first reschedule or stop timer */
624	if (w->repeat)	944	if (w->repeat)
625	{	945	{
626	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	946	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
627	w->at = now + w->repeat;	947	((WT)w)->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	948	downheap ((WT *)timers, timercnt, 0);
629	}	949	}
630	else	950	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		952
633	event ((W)w, EV_TIMEOUT);	953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	954	}
635	}	955	}
636		956
637	static void	957	static void
638	periodics_reify (void)	958	periodics_reify (EV_P)
639	{	959	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
641	{	961	{
642	struct ev_periodic *w = periodics [0];	962	struct ev_periodic *w = periodics [0];
643		963
		964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		965
644	/* first reschedule or stop timer */	966	/* first reschedule or stop timer */
645	if (w->interval)	967	if (w->reschedule_cb)
646	{	968	{
		969	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		970
		971	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		972	downheap ((WT *)periodics, periodiccnt, 0);
		973	}
		974	else if (w->interval)
		975	{
647	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	976	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
648	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	977	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
649	downheap ((WT *)periodics, periodiccnt, 0);	978	downheap ((WT *)periodics, periodiccnt, 0);
650	}	979	}
651	else	980	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		982
654	event ((W)w, EV_PERIODIC);	983	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	984	}
656	}	985	}
657		986
658	static void	987	static void
659	periodics_reschedule (ev_tstamp diff)	988	periodics_reschedule (EV_P)
660	{	989	{
661	int i;	990	int i;
662		991
663	/* adjust periodics after time jump */	992	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	993	for (i = 0; i < periodiccnt; ++i)
665	{	994	{
666	struct ev_periodic *w = periodics [i];	995	struct ev_periodic *w = periodics [i];
667		996
		997	if (w->reschedule_cb)
		998	((WT)w)->at = w->reschedule_cb (w, rt_now);
668	if (w->interval)	999	else if (w->interval)
669	{
670	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1000	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
671
672	if (fabs (diff) >= 1e-4)
673	{
674	ev_periodic_stop (w);
675	ev_periodic_start (w);
676
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}
679	}
680	}	1001	}
681	}
682		1002
683	static int	1003	/* now rebuild the heap */
		1004	for (i = periodiccnt >> 1; i--; )
		1005	downheap ((WT *)periodics, periodiccnt, i);
		1006	}
		1007
		1008	inline int
684	time_update_monotonic (void)	1009	time_update_monotonic (EV_P)
685	{	1010	{
686	now = get_clock ();	1011	mn_now = get_clock ();
687		1012
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1013	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1014	{
690	ev_now = now + diff;	1015	rt_now = rtmn_diff + mn_now;
691	return 0;	1016	return 0;
692	}	1017	}
693	else	1018	else
694	{	1019	{
695	now_floor = now;	1020	now_floor = mn_now;
696	ev_now = ev_time ();	1021	rt_now = ev_time ();
697	return 1;	1022	return 1;
698	}	1023	}
699	}	1024	}
700		1025
701	static void	1026	static void
702	time_update (void)	1027	time_update (EV_P)
703	{	1028	{
704	int i;	1029	int i;
705		1030
706	#if EV_USE_MONOTONIC	1031	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1032	if (expect_true (have_monotonic))
708	{	1033	{
709	if (time_update_monotonic ())	1034	if (time_update_monotonic (EV_A))
710	{	1035	{
711	ev_tstamp odiff = diff;	1036	ev_tstamp odiff = rtmn_diff;
712		1037
713	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1038	for (i = 4; --i; ) /* loop a few times, before making important decisions */
714	{	1039	{
715	diff = ev_now - now;	1040	rtmn_diff = rt_now - mn_now;
716		1041
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1042	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1043	return; /* all is well */
719		1044
720	ev_now = ev_time ();	1045	rt_now = ev_time ();
721	now = get_clock ();	1046	mn_now = get_clock ();
722	now_floor = now;	1047	now_floor = mn_now;
723	}	1048	}
724		1049
725	periodics_reschedule (diff - odiff);	1050	periodics_reschedule (EV_A);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	1051	/* no timer adjustment, as the monotonic clock doesn't jump */
		1052	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
727	}	1053	}
728	}	1054	}
729	else	1055	else
730	#endif	1056	#endif
731	{	1057	{
732	ev_now = ev_time ();	1058	rt_now = ev_time ();
733		1059
734	if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1060	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
735	{	1061	{
736	periodics_reschedule (ev_now - now);	1062	periodics_reschedule (EV_A);
737		1063
738	/* adjust timers. this is easy, as the offset is the same for all */	1064	/* adjust timers. this is easy, as the offset is the same for all */
739	for (i = 0; i < timercnt; ++i)	1065	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1066	((WT)timers [i])->at += rt_now - mn_now;
741	}	1067	}
742		1068
743	now = ev_now;	1069	mn_now = rt_now;
744	}	1070	}
745	}	1071	}
746		1072
747	int ev_loop_done;	1073	void
		1074	ev_ref (EV_P)
		1075	{
		1076	++activecnt;
		1077	}
748		1078
		1079	void
		1080	ev_unref (EV_P)
		1081	{
		1082	--activecnt;
		1083	}
		1084
		1085	static int loop_done;
		1086
		1087	void
749	void ev_loop (int flags)	1088	ev_loop (EV_P_ int flags)
750	{	1089	{
751	double block;	1090	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1091	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
753		1092
754	do	1093	do
755	{	1094	{
756	/* queue check watchers (and execute them) */	1095	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1096	if (expect_false (preparecnt))
758	{	1097	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1099	call_pending (EV_A);
761	}	1100	}
762		1101
		1102	/* we might have forked, so reify kernel state if necessary */
		1103	if (expect_false (postfork))
		1104	loop_fork (EV_A);
		1105
763	/* update fd-related kernel structures */	1106	/* update fd-related kernel structures */
764	fd_reify ();	1107	fd_reify (EV_A);
765		1108
766	/* calculate blocking time */	1109	/* calculate blocking time */
767		1110
768	/* we only need this for !monotonic clockor timers, but as we basically	1111	/* we only need this for !monotonic clock or timers, but as we basically
769	always have timers, we just calculate it always */	1112	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1113	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1114	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1115	time_update_monotonic (EV_A);
773	else	1116	else
774	#endif	1117	#endif
775	{	1118	{
776	ev_now = ev_time ();	1119	rt_now = ev_time ();
777	now = ev_now;	1120	mn_now = rt_now;
778	}	1121	}
779		1122
780	if (flags & EVLOOP_NONBLOCK || idlecnt)	1123	if (flags & EVLOOP_NONBLOCK || idlecnt)
781	block = 0.;	1124	block = 0.;
782	else	1125	else
783	{	1126	{
784	block = MAX_BLOCKTIME;	1127	block = MAX_BLOCKTIME;
785		1128
786	if (timercnt)	1129	if (timercnt)
787	{	1130	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1132	if (block > to) block = to;
790	}	1133	}
791		1134
792	if (periodiccnt)	1135	if (periodiccnt)
793	{	1136	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
795	if (block > to) block = to;	1138	if (block > to) block = to;
796	}	1139	}
797		1140
798	if (block < 0.) block = 0.;	1141	if (block < 0.) block = 0.;
799	}	1142	}
800		1143
801	method_poll (block);	1144	method_poll (EV_A_ block);
802		1145
803	/* update ev_now, do magic */	1146	/* update rt_now, do magic */
804	time_update ();	1147	time_update (EV_A);
805		1148
806	/* queue pending timers and reschedule them */	1149	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1150	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	1151	periodics_reify (EV_A); /* absolute timers called first */
809		1152
810	/* queue idle watchers unless io or timers are pending */	1153	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1154	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1156
814	/* queue check watchers, to be executed first */	1157	/* queue check watchers, to be executed first */
815	if (checkcnt)	1158	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1160
818	call_pending ();	1161	call_pending (EV_A);
819	}	1162	}
820	while (!ev_loop_done);	1163	while (activecnt && !loop_done);
821		1164
822	if (ev_loop_done != 2)	1165	if (loop_done != 2)
823	ev_loop_done = 0;	1166	loop_done = 0;
		1167	}
		1168
		1169	void
		1170	ev_unloop (EV_P_ int how)
		1171	{
		1172	loop_done = how;
824	}	1173	}
825		1174
826	/*****************************************************************************/	1175	/*****************************************************************************/
827		1176
828	static void	1177	inline void
829	wlist_add (WL *head, WL elem)	1178	wlist_add (WL *head, WL elem)
830	{	1179	{
831	elem->next = *head;	1180	elem->next = *head;
832	*head = elem;	1181	*head = elem;
833	}	1182	}
834		1183
835	static void	1184	inline void
836	wlist_del (WL *head, WL elem)	1185	wlist_del (WL *head, WL elem)
837	{	1186	{
838	while (*head)	1187	while (*head)
839	{	1188	{
840	if (*head == elem)	1189	if (*head == elem)
…		…
845		1194
846	head = &(*head)->next;	1195	head = &(*head)->next;
847	}	1196	}
848	}	1197	}
849		1198
850	static void	1199	inline void
851	ev_clear_pending (W w)	1200	ev_clear_pending (EV_P_ W w)
852	{	1201	{
853	if (w->pending)	1202	if (w->pending)
854	{	1203	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1204	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1205	w->pending = 0;
857	}	1206	}
858	}	1207	}
859		1208
860	static void	1209	inline void
861	ev_start (W w, int active)	1210	ev_start (EV_P_ W w, int active)
862	{	1211	{
		1212	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1213	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1214
863	w->active = active;	1215	w->active = active;
		1216	ev_ref (EV_A);
864	}	1217	}
865		1218
866	static void	1219	inline void
867	ev_stop (W w)	1220	ev_stop (EV_P_ W w)
868	{	1221	{
		1222	ev_unref (EV_A);
869	w->active = 0;	1223	w->active = 0;
870	}	1224	}
871		1225
872	/*****************************************************************************/	1226	/*****************************************************************************/
873		1227
874	void	1228	void
875	ev_io_start (struct ev_io *w)	1229	ev_io_start (EV_P_ struct ev_io *w)
876	{	1230	{
877	int fd = w->fd;	1231	int fd = w->fd;
878		1232
879	if (ev_is_active (w))	1233	if (ev_is_active (w))
880	return;	1234	return;
881		1235
882	assert (("ev_io_start called with negative fd", fd >= 0));	1236	assert (("ev_io_start called with negative fd", fd >= 0));
883		1237
884	ev_start ((W)w, 1);	1238	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1239	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1240	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		1241
888	fd_change (fd);	1242	fd_change (EV_A_ fd);
889	}	1243	}
890		1244
891	void	1245	void
892	ev_io_stop (struct ev_io *w)	1246	ev_io_stop (EV_P_ struct ev_io *w)
893	{	1247	{
894	ev_clear_pending ((W)w);	1248	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	1249	if (!ev_is_active (w))
896	return;	1250	return;
897		1251
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1252	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	1253	ev_stop (EV_A_ (W)w);
900		1254
901	fd_change (w->fd);	1255	fd_change (EV_A_ w->fd);
902	}	1256	}
903		1257
904	void	1258	void
905	ev_timer_start (struct ev_timer *w)	1259	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	1260	{
907	if (ev_is_active (w))	1261	if (ev_is_active (w))
908	return;	1262	return;
909		1263
910	w->at += now;	1264	((WT)w)->at += mn_now;
911		1265
912	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1266	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
913		1267
914	ev_start ((W)w, ++timercnt);	1268	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
916	timers [timercnt - 1] = w;	1270	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	1271	upheap ((WT *)timers, timercnt - 1);
918	}
919		1272
		1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1274	}
		1275
920	void	1276	void
921	ev_timer_stop (struct ev_timer *w)	1277	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	1278	{
923	ev_clear_pending ((W)w);	1279	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	1280	if (!ev_is_active (w))
925	return;	1281	return;
926		1282
		1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1284
927	if (w->active < timercnt--)	1285	if (((W)w)->active < timercnt--)
928	{	1286	{
929	timers [w->active - 1] = timers [timercnt];	1287	timers [((W)w)->active - 1] = timers [timercnt];
930	downheap ((WT *)timers, timercnt, w->active - 1);	1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
931	}	1289	}
932		1290
933	w->at = w->repeat;	1291	((WT)w)->at = w->repeat;
934		1292
935	ev_stop ((W)w);	1293	ev_stop (EV_A_ (W)w);
936	}	1294	}
937		1295
938	void	1296	void
939	ev_timer_again (struct ev_timer *w)	1297	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	1298	{
941	if (ev_is_active (w))	1299	if (ev_is_active (w))
942	{	1300	{
943	if (w->repeat)	1301	if (w->repeat)
944	{	1302	{
945	w->at = now + w->repeat;	1303	((WT)w)->at = mn_now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
947	}	1305	}
948	else	1306	else
949	ev_timer_stop (w);	1307	ev_timer_stop (EV_A_ w);
950	}	1308	}
951	else if (w->repeat)	1309	else if (w->repeat)
952	ev_timer_start (w);	1310	ev_timer_start (EV_A_ w);
953	}	1311	}
954		1312
955	void	1313	void
956	ev_periodic_start (struct ev_periodic *w)	1314	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1315	{
958	if (ev_is_active (w))	1316	if (ev_is_active (w))
959	return;	1317	return;
960		1318
		1319	if (w->reschedule_cb)
		1320	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1321	else if (w->interval)
		1322	{
961	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1323	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
962
963	/* this formula differs from the one in periodic_reify because we do not always round up */	1324	/* this formula differs from the one in periodic_reify because we do not always round up */
964	if (w->interval)
965	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1325	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1326	}
966		1327
967	ev_start ((W)w, ++periodiccnt);	1328	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
969	periodics [periodiccnt - 1] = w;	1330	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1331	upheap ((WT *)periodics, periodiccnt - 1);
971	}
972		1332
		1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1334	}
		1335
973	void	1336	void
974	ev_periodic_stop (struct ev_periodic *w)	1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1338	{
976	ev_clear_pending ((W)w);	1339	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1340	if (!ev_is_active (w))
978	return;	1341	return;
979		1342
		1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1344
980	if (w->active < periodiccnt--)	1345	if (((W)w)->active < periodiccnt--)
981	{	1346	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
984	}	1349	}
985		1350
986	ev_stop ((W)w);	1351	ev_stop (EV_A_ (W)w);
987	}	1352	}
988		1353
989	void	1354	void
		1355	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1356	{
		1357	ev_periodic_stop (EV_A_ w);
		1358	ev_periodic_start (EV_A_ w);
		1359	}
		1360
		1361	void
990	ev_signal_start (struct ev_signal *w)	1362	ev_idle_start (EV_P_ struct ev_idle *w)
991	{	1363	{
992	if (ev_is_active (w))	1364	if (ev_is_active (w))
993	return;	1365	return;
994		1366
		1367	ev_start (EV_A_ (W)w, ++idlecnt);
		1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1369	idles [idlecnt - 1] = w;
		1370	}
		1371
		1372	void
		1373	ev_idle_stop (EV_P_ struct ev_idle *w)
		1374	{
		1375	ev_clear_pending (EV_A_ (W)w);
		1376	if (ev_is_active (w))
		1377	return;
		1378
		1379	idles [((W)w)->active - 1] = idles [--idlecnt];
		1380	ev_stop (EV_A_ (W)w);
		1381	}
		1382
		1383	void
		1384	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1385	{
		1386	if (ev_is_active (w))
		1387	return;
		1388
		1389	ev_start (EV_A_ (W)w, ++preparecnt);
		1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1391	prepares [preparecnt - 1] = w;
		1392	}
		1393
		1394	void
		1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1396	{
		1397	ev_clear_pending (EV_A_ (W)w);
		1398	if (ev_is_active (w))
		1399	return;
		1400
		1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1402	ev_stop (EV_A_ (W)w);
		1403	}
		1404
		1405	void
		1406	ev_check_start (EV_P_ struct ev_check *w)
		1407	{
		1408	if (ev_is_active (w))
		1409	return;
		1410
		1411	ev_start (EV_A_ (W)w, ++checkcnt);
		1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1413	checks [checkcnt - 1] = w;
		1414	}
		1415
		1416	void
		1417	ev_check_stop (EV_P_ struct ev_check *w)
		1418	{
		1419	ev_clear_pending (EV_A_ (W)w);
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	checks [((W)w)->active - 1] = checks [--checkcnt];
		1424	ev_stop (EV_A_ (W)w);
		1425	}
		1426
		1427	#ifndef SA_RESTART
		1428	# define SA_RESTART 0
		1429	#endif
		1430
		1431	void
		1432	ev_signal_start (EV_P_ struct ev_signal *w)
		1433	{
		1434	#if EV_MULTIPLICITY
		1435	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1436	#endif
		1437	if (ev_is_active (w))
		1438	return;
		1439
995	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1440	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
996		1441
997	ev_start ((W)w, 1);	1442	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1445
1001	if (!w->next)	1446	if (!((WL)w)->next)
1002	{	1447	{
		1448	#if WIN32
		1449	signal (w->signum, sighandler);
		1450	#else
1003	struct sigaction sa;	1451	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1452	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1453	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1454	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1455	sigaction (w->signum, &sa, 0);
		1456	#endif
1008	}	1457	}
1009	}	1458	}
1010		1459
1011	void	1460	void
1012	ev_signal_stop (struct ev_signal *w)	1461	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1462	{
1014	ev_clear_pending ((W)w);	1463	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1464	if (!ev_is_active (w))
1016	return;	1465	return;
1017		1466
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1467	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1468	ev_stop (EV_A_ (W)w);
1020		1469
1021	if (!signals [w->signum - 1].head)	1470	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1471	signal (w->signum, SIG_DFL);
1023	}	1472	}
1024		1473
1025	void	1474	void
1026	ev_idle_start (struct ev_idle *w)	1475	ev_child_start (EV_P_ struct ev_child *w)
1027	{	1476	{
		1477	#if EV_MULTIPLICITY
		1478	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1479	#endif
1028	if (ev_is_active (w))	1480	if (ev_is_active (w))
1029	return;	1481	return;
1030		1482
1031	ev_start ((W)w, ++idlecnt);	1483	ev_start (EV_A_ (W)w, 1);
1032	array_needsize (idles, idlemax, idlecnt, );	1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1033	idles [idlecnt - 1] = w;
1034	}	1485	}
1035		1486
1036	void	1487	void
1037	ev_idle_stop (struct ev_idle *w)	1488	ev_child_stop (EV_P_ struct ev_child *w)
1038	{	1489	{
1039	ev_clear_pending ((W)w);	1490	ev_clear_pending (EV_A_ (W)w);
1040	if (ev_is_active (w))	1491	if (ev_is_active (w))
1041	return;	1492	return;
1042		1493
1043	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);
1045	}
1046
1047	void
1048	ev_prepare_start (struct ev_prepare *w)
1049	{
1050	if (ev_is_active (w))
1051	return;
1052
1053	ev_start ((W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;
1056	}
1057
1058	void
1059	ev_prepare_stop (struct ev_prepare *w)
1060	{
1061	ev_clear_pending ((W)w);
1062	if (ev_is_active (w))
1063	return;
1064
1065	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);
1067	}
1068
1069	void
1070	ev_check_start (struct ev_check *w)
1071	{
1072	if (ev_is_active (w))
1073	return;
1074
1075	ev_start ((W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;
1078	}
1079
1080	void
1081	ev_check_stop (struct ev_check *w)
1082	{
1083	ev_clear_pending ((W)w);
1084	if (ev_is_active (w))
1085	return;
1086
1087	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);
1089	}
1090
1091	void
1092	ev_child_start (struct ev_child *w)
1093	{
1094	if (ev_is_active (w))
1095	return;
1096
1097	ev_start ((W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}
1100
1101	void
1102	ev_child_stop (struct ev_child *w)
1103	{
1104	ev_clear_pending ((W)w);
1105	if (ev_is_active (w))
1106	return;
1107
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1494	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1495	ev_stop (EV_A_ (W)w);
1110	}	1496	}
1111		1497
1112	/*****************************************************************************/	1498	/*****************************************************************************/
1113		1499
1114	struct ev_once	1500	struct ev_once
…		…
1118	void (*cb)(int revents, void *arg);	1504	void (*cb)(int revents, void *arg);
1119	void *arg;	1505	void *arg;
1120	};	1506	};
1121		1507
1122	static void	1508	static void
1123	once_cb (struct ev_once *once, int revents)	1509	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1510	{
1125	void (*cb)(int revents, void *arg) = once->cb;	1511	void (*cb)(int revents, void *arg) = once->cb;
1126	void *arg = once->arg;	1512	void *arg = once->arg;
1127		1513
1128	ev_io_stop (&once->io);	1514	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1515	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1516	ev_free (once);
1131		1517
1132	cb (revents, arg);	1518	cb (revents, arg);
1133	}	1519	}
1134		1520
1135	static void	1521	static void
1136	once_cb_io (struct ev_io *w, int revents)	1522	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1523	{
1138	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	1524	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1139	}	1525	}
1140		1526
1141	static void	1527	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1528	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1529	{
1144	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	1530	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1145	}	1531	}
1146		1532
1147	void	1533	void
1148	ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1534	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1149	{	1535	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1536	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1151		1537
1152	if (!once)	1538	if (!once)
1153	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1539	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1154	else	1540	else
1155	{	1541	{
…		…
1158		1544
1159	ev_watcher_init (&once->io, once_cb_io);	1545	ev_watcher_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1546	if (fd >= 0)
1161	{	1547	{
1162	ev_io_set (&once->io, fd, events);	1548	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1549	ev_io_start (EV_A_ &once->io);
1164	}	1550	}
1165		1551
1166	ev_watcher_init (&once->to, once_cb_to);	1552	ev_watcher_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1553	if (timeout >= 0.)
1168	{	1554	{
1169	ev_timer_set (&once->to, timeout, 0.);	1555	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1556	ev_timer_start (EV_A_ &once->to);
1171	}	1557	}
1172	}	1558	}
1173	}	1559	}
1174		1560
1175	/*****************************************************************************/
1176
1177	#if 0
1178
1179	struct ev_io wio;
1180
1181	static void
1182	sin_cb (struct ev_io *w, int revents)
1183	{
1184	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1185	}
1186
1187	static void
1188	ocb (struct ev_timer *w, int revents)
1189	{
1190	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1191	ev_timer_stop (w);
1192	ev_timer_start (w);
1193	}
1194
1195	static void
1196	scb (struct ev_signal *w, int revents)
1197	{
1198	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1199	ev_io_stop (&wio);
1200	ev_io_start (&wio);
1201	}
1202
1203	static void
1204	gcb (struct ev_signal *w, int revents)
1205	{
1206	fprintf (stderr, "generic %x\n", revents);
1207
1208	}
1209
1210	int main (void)
1211	{
1212	ev_init (0);
1213
1214	ev_io_init (&wio, sin_cb, 0, EV_READ);
1215	ev_io_start (&wio);
1216
1217	struct ev_timer t[10000];
1218
1219	#if 0
1220	int i;
1221	for (i = 0; i < 10000; ++i)
1222	{
1223	struct ev_timer *w = t + i;
1224	ev_watcher_init (w, ocb, i);
1225	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1226	ev_timer_start (w);
1227	if (drand48 () < 0.5)
1228	ev_timer_stop (w);
1229	}
1230	#endif
1231
1232	struct ev_timer t1;
1233	ev_timer_init (&t1, ocb, 5, 10);
1234	ev_timer_start (&t1);
1235
1236	struct ev_signal sig;
1237	ev_signal_init (&sig, scb, SIGQUIT);
1238	ev_signal_start (&sig);
1239
1240	struct ev_check cw;
1241	ev_check_init (&cw, gcb);
1242	ev_check_start (&cw);
1243
1244	struct ev_idle iw;
1245	ev_idle_init (&iw, gcb);
1246	ev_idle_start (&iw);
1247
1248	ev_loop (0);
1249
1250	return 0;
1251	}
1252
1253	#endif
1254
1255
1256
1257

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