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Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 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>
		67	#include <time.h>
		68
		69	#include <signal.h>
		70
47	#ifndef WIN32	71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
48	# include <sys/wait.h>	74	# include <sys/wait.h>
49	#endif	75	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	76	/**/
54		77
55	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
57	#endif	80	#endif
…		…
68	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
69	#endif	92	#endif
70		93
71	#ifndef EV_USE_KQUEUE	94	#ifndef EV_USE_KQUEUE
72	# 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
73	#endif	106	#endif
74		107
75	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
77	#endif	110	#endif
…		…
113		146
114	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
117		150
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	ev_tstamp ev_now;
120	int ev_method;
121		152
122	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;
123		157
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	158	static int
125	static void (*method_modify)(int fd, int oev, int nev);	159	ev_socketpair_tcp (int filedes [2])
126	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
127		211
128	/*****************************************************************************/	212	/*****************************************************************************/
129		213
130	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
131	ev_time (void)	296	ev_time (void)
132	{	297	{
133	#if EV_USE_REALTIME	298	#if EV_USE_REALTIME
134	struct timespec ts;	299	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	300	clock_gettime (CLOCK_REALTIME, &ts);
…		…
139	gettimeofday (&tv, 0);	304	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	305	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	306	#endif
142	}	307	}
143		308
144	static ev_tstamp	309	inline ev_tstamp
145	get_clock (void)	310	get_clock (void)
146	{	311	{
147	#if EV_USE_MONOTONIC	312	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	313	if (expect_true (have_monotonic))
149	{	314	{
…		…
154	#endif	319	#endif
155		320
156	return ev_time ();	321	return ev_time ();
157	}	322	}
158		323
		324	ev_tstamp
		325	ev_now (EV_P)
		326	{
		327	return rt_now;
		328	}
		329
159	#define array_roundsize(base,n) ((n) | 4 & ~3)	330	#define array_roundsize(base,n) ((n) | 4 & ~3)
160		331
161	#define array_needsize(base,cur,cnt,init) \	332	#define array_needsize(base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	333	if (expect_false ((cnt) > cur)) \
163	{ \	334	{ \
164	int newcnt = cur; \	335	int newcnt = cur; \
165	do \	336	do \
166	{ \	337	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	338	newcnt = array_roundsize (base, newcnt << 1); \
168	} \	339	} \
169	while ((cnt) > newcnt); \	340	while ((cnt) > newcnt); \
170	\	341	\
171	base = realloc (base, sizeof (*base) * (newcnt)); \	342	base = ev_realloc (base, sizeof (*base) * (newcnt)); \
172	init (base + cur, newcnt - cur); \	343	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	344	cur = newcnt; \
174	}	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;
175		362
176	/*****************************************************************************/	363	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		364
188	static void	365	static void
189	anfds_init (ANFD *base, int count)	366	anfds_init (ANFD *base, int count)
190	{	367	{
191	while (count--)	368	while (count--)
…		…
196		373
197	++base;	374	++base;
198	}	375	}
199	}	376	}
200		377
201	typedef struct
202	{
203	W w;
204	int events;
205	} ANPENDING;
206
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void	378	static void
211	event (W w, int events)	379	event (EV_P_ W w, int events)
212	{	380	{
213	if (w->pending)	381	if (w->pending)
214	{	382	{
215	pendings [ABSPRI (w)][w->pending - 1].events |= events;	383	pendings [ABSPRI (w)][w->pending - 1].events |= events;
216	return;	384	return;
217	}	385	}
218		386
219	w->pending = ++pendingcnt [ABSPRI (w)];	387	w->pending = ++pendingcnt [ABSPRI (w)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	388	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	389	pendings [ABSPRI (w)][w->pending - 1].w = w;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	390	pendings [ABSPRI (w)][w->pending - 1].events = events;
223	}	391	}
224		392
225	static void	393	static void
226	queue_events (W *events, int eventcnt, int type)	394	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	395	{
228	int i;	396	int i;
229		397
230	for (i = 0; i < eventcnt; ++i)	398	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	399	event (EV_A_ events [i], type);
232	}	400	}
233		401
234	static void	402	static void
235	fd_event (int fd, int events)	403	fd_event (EV_P_ int fd, int events)
236	{	404	{
237	ANFD *anfd = anfds + fd;	405	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	406	struct ev_io *w;
239		407
240	for (w = anfd->head; w; w = w->next)	408	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
241	{	409	{
242	int ev = w->events & events;	410	int ev = w->events & events;
243		411
244	if (ev)	412	if (ev)
245	event ((W)w, ev);	413	event (EV_A_ (W)w, ev);
246	}	414	}
247	}	415	}
248		416
249	/*****************************************************************************/	417	/*****************************************************************************/
250		418
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	419	static void
255	fd_reify (void)	420	fd_reify (EV_P)
256	{	421	{
257	int i;	422	int i;
258		423
259	for (i = 0; i < fdchangecnt; ++i)	424	for (i = 0; i < fdchangecnt; ++i)
260	{	425	{
…		…
262	ANFD *anfd = anfds + fd;	427	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	428	struct ev_io *w;
264		429
265	int events = 0;	430	int events = 0;
266		431
267	for (w = anfd->head; w; w = w->next)	432	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
268	events |= w->events;	433	events |= w->events;
269		434
270	anfd->reify = 0;	435	anfd->reify = 0;
271		436
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	437	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	438	anfd->events = events;
276	}
277	}	439	}
278		440
279	fdchangecnt = 0;	441	fdchangecnt = 0;
280	}	442	}
281		443
282	static void	444	static void
283	fd_change (int fd)	445	fd_change (EV_P_ int fd)
284	{	446	{
285	if (anfds [fd].reify || fdchangecnt < 0)	447	if (anfds [fd].reify)
286	return;	448	return;
287		449
288	anfds [fd].reify = 1;	450	anfds [fd].reify = 1;
289		451
290	++fdchangecnt;	452	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	454	fdchanges [fdchangecnt - 1] = fd;
293	}	455	}
294		456
295	static void	457	static void
296	fd_kill (int fd)	458	fd_kill (EV_P_ int fd)
297	{	459	{
298	struct ev_io *w;	460	struct ev_io *w;
299		461
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	462	while ((w = (struct ev_io *)anfds [fd].head))
302	{	463	{
303	ev_io_stop (w);	464	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR | EV_READ | EV_WRITE);	465	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
305	}	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
306	}	477	}
307		478
308	/* called on EBADF to verify fds */	479	/* called on EBADF to verify fds */
309	static void	480	static void
310	fd_ebadf (void)	481	fd_ebadf (EV_P)
311	{	482	{
312	int fd;	483	int fd;
313		484
314	for (fd = 0; fd < anfdmax; ++fd)	485	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	486	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	487	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	488	fd_kill (EV_A_ fd);
318	}	489	}
319		490
320	/* 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 */
321	static void	492	static void
322	fd_enomem (void)	493	fd_enomem (EV_P)
323	{	494	{
324	int fd = anfdmax;	495	int fd;
325		496
326	while (fd--)	497	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	498	if (anfds [fd].events)
328	{	499	{
329	close (fd);
330	fd_kill (fd);	500	fd_kill (EV_A_ fd);
331	return;	501	return;
332	}	502	}
333	}	503	}
334		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
335	/*****************************************************************************/	520	/*****************************************************************************/
336		521
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	522	static void
344	upheap (WT *timers, int k)	523	upheap (WT *heap, int k)
345	{	524	{
346	WT w = timers [k];	525	WT w = heap [k];
347		526
348	while (k && timers [k >> 1]->at > w->at)	527	while (k && heap [k >> 1]->at > w->at)
349	{	528	{
350	timers [k] = timers [k >> 1];	529	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
352	k >>= 1;	531	k >>= 1;
353	}	532	}
354		533
355	timers [k] = w;	534	heap [k] = w;
356	timers [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
357		536
358	}	537	}
359		538
360	static void	539	static void
361	downheap (WT *timers, int N, int k)	540	downheap (WT *heap, int N, int k)
362	{	541	{
363	WT w = timers [k];	542	WT w = heap [k];
364		543
365	while (k < (N >> 1))	544	while (k < (N >> 1))
366	{	545	{
367	int j = k << 1;	546	int j = k << 1;
368		547
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	548	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	549	++j;
371		550
372	if (w->at <= timers [j]->at)	551	if (w->at <= heap [j]->at)
373	break;	552	break;
374		553
375	timers [k] = timers [j];	554	heap [k] = heap [j];
376	timers [k]->active = k + 1;	555	((W)heap [k])->active = k + 1;
377	k = j;	556	k = j;
378	}	557	}
379		558
380	timers [k] = w;	559	heap [k] = w;
381	timers [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
382	}	561	}
383		562
384	/*****************************************************************************/	563	/*****************************************************************************/
385		564
386	typedef struct	565	typedef struct
387	{	566	{
388	struct ev_signal *head;	567	WL head;
389	sig_atomic_t volatile gotsig;	568	sig_atomic_t volatile gotsig;
390	} ANSIG;	569	} ANSIG;
391		570
392	static ANSIG *signals;	571	static ANSIG *signals;
393	static int signalmax;	572	static int signalmax;
…		…
409	}	588	}
410		589
411	static void	590	static void
412	sighandler (int signum)	591	sighandler (int signum)
413	{	592	{
		593	#if WIN32
		594	signal (signum, sighandler);
		595	#endif
		596
414	signals [signum - 1].gotsig = 1;	597	signals [signum - 1].gotsig = 1;
415		598
416	if (!gotsig)	599	if (!gotsig)
417	{	600	{
		601	int old_errno = errno;
418	gotsig = 1;	602	gotsig = 1;
419	write (sigpipe [1], &signum, 1);	603	write (sigpipe [1], &signum, 1);
		604	errno = old_errno;
420	}	605	}
421	}	606	}
422		607
423	static void	608	static void
424	sigcb (struct ev_io *iow, int revents)	609	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	610	{
426	struct ev_signal *w;	611	WL w;
427	int signum;	612	int signum;
428		613
429	read (sigpipe [0], &revents, 1);	614	read (sigpipe [0], &revents, 1);
430	gotsig = 0;	615	gotsig = 0;
431		616
…		…
433	if (signals [signum].gotsig)	618	if (signals [signum].gotsig)
434	{	619	{
435	signals [signum].gotsig = 0;	620	signals [signum].gotsig = 0;
436		621
437	for (w = signals [signum].head; w; w = w->next)	622	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);	623	event (EV_A_ (W)w, EV_SIGNAL);
439	}	624	}
440	}	625	}
441		626
442	static void	627	static void
443	siginit (void)	628	siginit (EV_P)
444	{	629	{
445	#ifndef WIN32	630	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		633
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	637	#endif
453		638
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	639	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	640	ev_io_start (EV_A_ &sigev);
		641	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	642	}
457		643
458	/*****************************************************************************/	644	/*****************************************************************************/
459		645
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	646	static struct ev_child *childs [PID_HASHSIZE];
		647
		648	#ifndef WIN32
		649
472	static struct ev_signal childev;	650	static struct ev_signal childev;
473
474	#ifndef WIN32
475		651
476	#ifndef WCONTINUED	652	#ifndef WCONTINUED
477	# define WCONTINUED 0	653	# define WCONTINUED 0
478	#endif	654	#endif
479		655
480	static void	656	static void
481	childcb (struct ev_signal *sw, int revents)	657	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	658	{
483	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	{
484	int pid, status;	674	int pid, status;
485		675
486	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	676	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	677	{
488	if (w->pid == pid || !w->pid)	678	/* make sure we are called again until all childs have been reaped */
489	{	679	event (EV_A_ (W)sw, EV_SIGNAL);
490	w->status = status;	680
491	event ((W)w, EV_CHILD);	681	child_reap (EV_A_ sw, pid, pid, status);
492	}	682	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		683	}
493	}	684	}
494		685
495	#endif	686	#endif
496		687
497	/*****************************************************************************/	688	/*****************************************************************************/
…		…
519	ev_version_minor (void)	710	ev_version_minor (void)
520	{	711	{
521	return EV_VERSION_MINOR;	712	return EV_VERSION_MINOR;
522	}	713	}
523		714
524	/* 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 */
525	static int	716	static int
526	enable_secure ()	717	enable_secure (void)
527	{	718	{
		719	#ifdef WIN32
		720	return 0;
		721	#else
528	return getuid () != geteuid ()	722	return getuid () != geteuid ()
529	|| getgid () != getegid ();	723	|| getgid () != getegid ();
		724	#endif
530	}	725	}
531		726
532	int ev_init (int methods)	727	int
		728	ev_method (EV_P)
533	{	729	{
		730	return method;
		731	}
		732
		733	static void
		734	loop_init (EV_P_ int methods)
		735	{
534	if (!ev_method)	736	if (!method)
535	{	737	{
536	#if EV_USE_MONOTONIC	738	#if EV_USE_MONOTONIC
537	{	739	{
538	struct timespec ts;	740	struct timespec ts;
539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540	have_monotonic = 1;	742	have_monotonic = 1;
541	}	743	}
542	#endif	744	#endif
543		745
544	ev_now = ev_time ();	746	rt_now = ev_time ();
545	now = get_clock ();	747	mn_now = get_clock ();
546	now_floor = now;	748	now_floor = mn_now;
547	diff = ev_now - now;	749	rtmn_diff = rt_now - mn_now;
548
549	if (pipe (sigpipe))
550	return 0;
551		750
552	if (methods == EVMETHOD_AUTO)	751	if (methods == EVMETHOD_AUTO)
553	if (!enable_secure () && getenv ("LIBEV_METHODS"))	752	if (!enable_secure () && getenv ("LIBEV_METHODS"))
554	methods = atoi (getenv ("LIBEV_METHODS"));	753	methods = atoi (getenv ("LIBEV_METHODS"));
555	else	754	else
556	methods = EVMETHOD_ANY;	755	methods = EVMETHOD_ANY;
557		756
558	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
559	#if EV_USE_KQUEUE	761	#if EV_USE_KQUEUE
560	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
561	#endif	763	#endif
562	#if EV_USE_EPOLL	764	#if EV_USE_EPOLL
563	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
564	#endif	766	#endif
565	#if EV_USE_POLL	767	#if EV_USE_POLL
566	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
567	#endif	769	#endif
568	#if EV_USE_SELECT	770	#if EV_USE_SELECT
569	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
570	#endif	772	#endif
571		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
572	if (ev_method)	899	if (ev_method (EV_A))
573	{	900	{
574	ev_watcher_init (&sigev, sigcb);
575	siginit ();	901	siginit (EV_A);
576		902
577	#ifndef WIN32	903	#ifndef WIN32
578	ev_signal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
		905	ev_set_priority (&childev, EV_MAXPRI);
579	ev_signal_start (&childev);	906	ev_signal_start (EV_A_ &childev);
		907	ev_unref (EV_A); /* child watcher should not keep loop alive */
580	#endif	908	#endif
581	}	909	}
		910	else
		911	default_loop = 0;
582	}	912	}
583		913
584	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;
585	}	947	}
586		948
587	/*****************************************************************************/	949	/*****************************************************************************/
588		950
589	void
590	ev_fork_prepare (void)
591	{
592	/* nop */
593	}
594
595	void
596	ev_fork_parent (void)
597	{
598	/* nop */
599	}
600
601	void
602	ev_fork_child (void)
603	{
604	#if EV_USE_EPOLL
605	if (ev_method == EVMETHOD_EPOLL)
606	epoll_postfork_child ();
607	#endif
608
609	ev_io_stop (&sigev);
610	close (sigpipe [0]);
611	close (sigpipe [1]);
612	pipe (sigpipe);
613	siginit ();
614	}
615
616	/*****************************************************************************/
617
618	static void	951	static void
619	call_pending (void)	952	call_pending (EV_P)
620	{	953	{
621	int pri;	954	int pri;
622		955
623	for (pri = NUMPRI; pri--; )	956	for (pri = NUMPRI; pri--; )
624	while (pendingcnt [pri])	957	while (pendingcnt [pri])
…		…
626	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
627		960
628	if (p->w)	961	if (p->w)
629	{	962	{
630	p->w->pending = 0;	963	p->w->pending = 0;
631	p->w->cb (p->w, p->events);	964	p->w->cb (EV_A_ p->w, p->events);
632	}	965	}
633	}	966	}
634	}	967	}
635		968
636	static void	969	static void
637	timers_reify (void)	970	timers_reify (EV_P)
638	{	971	{
639	while (timercnt && timers [0]->at <= now)	972	while (timercnt && ((WT)timers [0])->at <= mn_now)
640	{	973	{
641	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)));
642		977
643	/* first reschedule or stop timer */	978	/* first reschedule or stop timer */
644	if (w->repeat)	979	if (w->repeat)
645	{	980	{
646	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.));
647	w->at = now + w->repeat;	982	((WT)w)->at = mn_now + w->repeat;
648	downheap ((WT *)timers, timercnt, 0);	983	downheap ((WT *)timers, timercnt, 0);
649	}	984	}
650	else	985	else
651	ev_timer_stop (w); /* nonrepeating: stop timer */	986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
652		987
653	event ((W)w, EV_TIMEOUT);	988	event (EV_A_ (W)w, EV_TIMEOUT);
654	}	989	}
655	}	990	}
656		991
657	static void	992	static void
658	periodics_reify (void)	993	periodics_reify (EV_P)
659	{	994	{
660	while (periodiccnt && periodics [0]->at <= ev_now)	995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
661	{	996	{
662	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)));
663		1000
664	/* first reschedule or stop timer */	1001	/* first reschedule or stop timer */
665	if (w->interval)	1002	if (w->interval)
666	{	1003	{
667	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;
668	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));
669	downheap ((WT *)periodics, periodiccnt, 0);	1006	downheap ((WT *)periodics, periodiccnt, 0);
670	}	1007	}
671	else	1008	else
672	ev_periodic_stop (w); /* nonrepeating: stop timer */	1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
673		1010
674	event ((W)w, EV_PERIODIC);	1011	event (EV_A_ (W)w, EV_PERIODIC);
675	}	1012	}
676	}	1013	}
677		1014
678	static void	1015	static void
679	periodics_reschedule (ev_tstamp diff)	1016	periodics_reschedule (EV_P)
680	{	1017	{
681	int i;	1018	int i;
682		1019
683	/* adjust periodics after time jump */	1020	/* adjust periodics after time jump */
684	for (i = 0; i < periodiccnt; ++i)	1021	for (i = 0; i < periodiccnt; ++i)
685	{	1022	{
686	struct ev_periodic *w = periodics [i];	1023	struct ev_periodic *w = periodics [i];
687		1024
688	if (w->interval)	1025	if (w->interval)
689	{	1026	{
690	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;
691		1028
692	if (fabs (diff) >= 1e-4)	1029	if (fabs (diff) >= 1e-4)
693	{	1030	{
694	ev_periodic_stop (w);	1031	ev_periodic_stop (EV_A_ w);
695	ev_periodic_start (w);	1032	ev_periodic_start (EV_A_ w);
696		1033
697	i = 0; /* restart loop, inefficient, but time jumps should be rare */	1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
698	}	1035	}
699	}	1036	}
700	}	1037	}
701	}	1038	}
702		1039
703	static int	1040	inline int
704	time_update_monotonic (void)	1041	time_update_monotonic (EV_P)
705	{	1042	{
706	now = get_clock ();	1043	mn_now = get_clock ();
707		1044
708	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
709	{	1046	{
710	ev_now = now + diff;	1047	rt_now = rtmn_diff + mn_now;
711	return 0;	1048	return 0;
712	}	1049	}
713	else	1050	else
714	{	1051	{
715	now_floor = now;	1052	now_floor = mn_now;
716	ev_now = ev_time ();	1053	rt_now = ev_time ();
717	return 1;	1054	return 1;
718	}	1055	}
719	}	1056	}
720		1057
721	static void	1058	static void
722	time_update (void)	1059	time_update (EV_P)
723	{	1060	{
724	int i;	1061	int i;
725		1062
726	#if EV_USE_MONOTONIC	1063	#if EV_USE_MONOTONIC
727	if (expect_true (have_monotonic))	1064	if (expect_true (have_monotonic))
728	{	1065	{
729	if (time_update_monotonic ())	1066	if (time_update_monotonic (EV_A))
730	{	1067	{
731	ev_tstamp odiff = diff;	1068	ev_tstamp odiff = rtmn_diff;
732		1069
733	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 */
734	{	1071	{
735	diff = ev_now - now;	1072	rtmn_diff = rt_now - mn_now;
736		1073
737	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
738	return; /* all is well */	1075	return; /* all is well */
739		1076
740	ev_now = ev_time ();	1077	rt_now = ev_time ();
741	now = get_clock ();	1078	mn_now = get_clock ();
742	now_floor = now;	1079	now_floor = mn_now;
743	}	1080	}
744		1081
745	periodics_reschedule (diff - odiff);	1082	periodics_reschedule (EV_A);
746	/* 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) */
747	}	1085	}
748	}	1086	}
749	else	1087	else
750	#endif	1088	#endif
751	{	1089	{
752	ev_now = ev_time ();	1090	rt_now = ev_time ();
753		1091
754	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))
755	{	1093	{
756	periodics_reschedule (ev_now - now);	1094	periodics_reschedule (EV_A);
757		1095
758	/* 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 */
759	for (i = 0; i < timercnt; ++i)	1097	for (i = 0; i < timercnt; ++i)
760	timers [i]->at += diff;	1098	((WT)timers [i])->at += rt_now - mn_now;
761	}	1099	}
762		1100
763	now = ev_now;	1101	mn_now = rt_now;
764	}	1102	}
765	}	1103	}
766		1104
767	int ev_loop_done;	1105	void
		1106	ev_ref (EV_P)
		1107	{
		1108	++activecnt;
		1109	}
768		1110
		1111	void
		1112	ev_unref (EV_P)
		1113	{
		1114	--activecnt;
		1115	}
		1116
		1117	static int loop_done;
		1118
		1119	void
769	void ev_loop (int flags)	1120	ev_loop (EV_P_ int flags)
770	{	1121	{
771	double block;	1122	double block;
772	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1123	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
773		1124
774	do	1125	do
775	{	1126	{
776	/* queue check watchers (and execute them) */	1127	/* queue check watchers (and execute them) */
777	if (expect_false (preparecnt))	1128	if (expect_false (preparecnt))
778	{	1129	{
779	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
780	call_pending ();	1131	call_pending (EV_A);
781	}	1132	}
782		1133
		1134	/* we might have forked, so reify kernel state if necessary */
		1135	if (expect_false (postfork))
		1136	loop_fork (EV_A);
		1137
783	/* update fd-related kernel structures */	1138	/* update fd-related kernel structures */
784	fd_reify ();	1139	fd_reify (EV_A);
785		1140
786	/* calculate blocking time */	1141	/* calculate blocking time */
787		1142
788	/* 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
789	always have timers, we just calculate it always */	1144	always have timers, we just calculate it always */
790	#if EV_USE_MONOTONIC	1145	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1146	if (expect_true (have_monotonic))
792	time_update_monotonic ();	1147	time_update_monotonic (EV_A);
793	else	1148	else
794	#endif	1149	#endif
795	{	1150	{
796	ev_now = ev_time ();	1151	rt_now = ev_time ();
797	now = ev_now;	1152	mn_now = rt_now;
798	}	1153	}
799		1154
800	if (flags & EVLOOP_NONBLOCK || idlecnt)	1155	if (flags & EVLOOP_NONBLOCK || idlecnt)
801	block = 0.;	1156	block = 0.;
802	else	1157	else
803	{	1158	{
804	block = MAX_BLOCKTIME;	1159	block = MAX_BLOCKTIME;
805		1160
806	if (timercnt)	1161	if (timercnt)
807	{	1162	{
808	ev_tstamp to = timers [0]->at - now + method_fudge;	1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
809	if (block > to) block = to;	1164	if (block > to) block = to;
810	}	1165	}
811		1166
812	if (periodiccnt)	1167	if (periodiccnt)
813	{	1168	{
814	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
815	if (block > to) block = to;	1170	if (block > to) block = to;
816	}	1171	}
817		1172
818	if (block < 0.) block = 0.;	1173	if (block < 0.) block = 0.;
819	}	1174	}
820		1175
821	method_poll (block);	1176	method_poll (EV_A_ block);
822		1177
823	/* update ev_now, do magic */	1178	/* update rt_now, do magic */
824	time_update ();	1179	time_update (EV_A);
825		1180
826	/* queue pending timers and reschedule them */	1181	/* queue pending timers and reschedule them */
827	timers_reify (); /* relative timers called last */	1182	timers_reify (EV_A); /* relative timers called last */
828	periodics_reify (); /* absolute timers called first */	1183	periodics_reify (EV_A); /* absolute timers called first */
829		1184
830	/* queue idle watchers unless io or timers are pending */	1185	/* queue idle watchers unless io or timers are pending */
831	if (!pendingcnt)	1186	if (!pendingcnt)
832	queue_events ((W *)idles, idlecnt, EV_IDLE);	1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
833		1188
834	/* queue check watchers, to be executed first */	1189	/* queue check watchers, to be executed first */
835	if (checkcnt)	1190	if (checkcnt)
836	queue_events ((W *)checks, checkcnt, EV_CHECK);	1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
837		1192
838	call_pending ();	1193	call_pending (EV_A);
839	}	1194	}
840	while (!ev_loop_done);	1195	while (activecnt && !loop_done);
841		1196
842	if (ev_loop_done != 2)	1197	if (loop_done != 2)
843	ev_loop_done = 0;	1198	loop_done = 0;
		1199	}
		1200
		1201	void
		1202	ev_unloop (EV_P_ int how)
		1203	{
		1204	loop_done = how;
844	}	1205	}
845		1206
846	/*****************************************************************************/	1207	/*****************************************************************************/
847		1208
848	static void	1209	inline void
849	wlist_add (WL *head, WL elem)	1210	wlist_add (WL *head, WL elem)
850	{	1211	{
851	elem->next = *head;	1212	elem->next = *head;
852	*head = elem;	1213	*head = elem;
853	}	1214	}
854		1215
855	static void	1216	inline void
856	wlist_del (WL *head, WL elem)	1217	wlist_del (WL *head, WL elem)
857	{	1218	{
858	while (*head)	1219	while (*head)
859	{	1220	{
860	if (*head == elem)	1221	if (*head == elem)
…		…
865		1226
866	head = &(*head)->next;	1227	head = &(*head)->next;
867	}	1228	}
868	}	1229	}
869		1230
870	static void	1231	inline void
871	ev_clear_pending (W w)	1232	ev_clear_pending (EV_P_ W w)
872	{	1233	{
873	if (w->pending)	1234	if (w->pending)
874	{	1235	{
875	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1236	pendings [ABSPRI (w)][w->pending - 1].w = 0;
876	w->pending = 0;	1237	w->pending = 0;
877	}	1238	}
878	}	1239	}
879		1240
880	static void	1241	inline void
881	ev_start (W w, int active)	1242	ev_start (EV_P_ W w, int active)
882	{	1243	{
883	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1244	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1245	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885		1246
886	w->active = active;	1247	w->active = active;
		1248	ev_ref (EV_A);
887	}	1249	}
888		1250
889	static void	1251	inline void
890	ev_stop (W w)	1252	ev_stop (EV_P_ W w)
891	{	1253	{
		1254	ev_unref (EV_A);
892	w->active = 0;	1255	w->active = 0;
893	}	1256	}
894		1257
895	/*****************************************************************************/	1258	/*****************************************************************************/
896		1259
897	void	1260	void
898	ev_io_start (struct ev_io *w)	1261	ev_io_start (EV_P_ struct ev_io *w)
899	{	1262	{
900	int fd = w->fd;	1263	int fd = w->fd;
901		1264
902	if (ev_is_active (w))	1265	if (ev_is_active (w))
903	return;	1266	return;
904		1267
905	assert (("ev_io_start called with negative fd", fd >= 0));	1268	assert (("ev_io_start called with negative fd", fd >= 0));
906		1269
907	ev_start ((W)w, 1);	1270	ev_start (EV_A_ (W)w, 1);
908	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
909	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);
910		1273
911	fd_change (fd);	1274	fd_change (EV_A_ fd);
912	}	1275	}
913		1276
914	void	1277	void
915	ev_io_stop (struct ev_io *w)	1278	ev_io_stop (EV_P_ struct ev_io *w)
916	{	1279	{
917	ev_clear_pending ((W)w);	1280	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1281	if (!ev_is_active (w))
919	return;	1282	return;
920		1283
921	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
922	ev_stop ((W)w);	1285	ev_stop (EV_A_ (W)w);
923		1286
924	fd_change (w->fd);	1287	fd_change (EV_A_ w->fd);
925	}	1288	}
926		1289
927	void	1290	void
928	ev_timer_start (struct ev_timer *w)	1291	ev_timer_start (EV_P_ struct ev_timer *w)
929	{	1292	{
930	if (ev_is_active (w))	1293	if (ev_is_active (w))
931	return;	1294	return;
932		1295
933	w->at += now;	1296	((WT)w)->at += mn_now;
934		1297
935	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.));
936		1299
937	ev_start ((W)w, ++timercnt);	1300	ev_start (EV_A_ (W)w, ++timercnt);
938	array_needsize (timers, timermax, timercnt, );	1301	array_needsize (timers, timermax, timercnt, (void));
939	timers [timercnt - 1] = w;	1302	timers [timercnt - 1] = w;
940	upheap ((WT *)timers, timercnt - 1);	1303	upheap ((WT *)timers, timercnt - 1);
941	}
942		1304
		1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1306	}
		1307
943	void	1308	void
944	ev_timer_stop (struct ev_timer *w)	1309	ev_timer_stop (EV_P_ struct ev_timer *w)
945	{	1310	{
946	ev_clear_pending ((W)w);	1311	ev_clear_pending (EV_A_ (W)w);
947	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
948	return;	1313	return;
949		1314
		1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1316
950	if (w->active < timercnt--)	1317	if (((W)w)->active < timercnt--)
951	{	1318	{
952	timers [w->active - 1] = timers [timercnt];	1319	timers [((W)w)->active - 1] = timers [timercnt];
953	downheap ((WT *)timers, timercnt, w->active - 1);	1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
954	}	1321	}
955		1322
956	w->at = w->repeat;	1323	((WT)w)->at = w->repeat;
957		1324
958	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
959	}	1326	}
960		1327
961	void	1328	void
962	ev_timer_again (struct ev_timer *w)	1329	ev_timer_again (EV_P_ struct ev_timer *w)
963	{	1330	{
964	if (ev_is_active (w))	1331	if (ev_is_active (w))
965	{	1332	{
966	if (w->repeat)	1333	if (w->repeat)
967	{	1334	{
968	w->at = now + w->repeat;	1335	((WT)w)->at = mn_now + w->repeat;
969	downheap ((WT *)timers, timercnt, w->active - 1);	1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
970	}	1337	}
971	else	1338	else
972	ev_timer_stop (w);	1339	ev_timer_stop (EV_A_ w);
973	}	1340	}
974	else if (w->repeat)	1341	else if (w->repeat)
975	ev_timer_start (w);	1342	ev_timer_start (EV_A_ w);
976	}	1343	}
977		1344
978	void	1345	void
979	ev_periodic_start (struct ev_periodic *w)	1346	ev_periodic_start (EV_P_ struct ev_periodic *w)
980	{	1347	{
981	if (ev_is_active (w))	1348	if (ev_is_active (w))
982	return;	1349	return;
983		1350
984	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.));
985		1352
986	/* 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 */
987	if (w->interval)	1354	if (w->interval)
988	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;
989		1356
990	ev_start ((W)w, ++periodiccnt);	1357	ev_start (EV_A_ (W)w, ++periodiccnt);
991	array_needsize (periodics, periodicmax, periodiccnt, );	1358	array_needsize (periodics, periodicmax, periodiccnt, (void));
992	periodics [periodiccnt - 1] = w;	1359	periodics [periodiccnt - 1] = w;
993	upheap ((WT *)periodics, periodiccnt - 1);	1360	upheap ((WT *)periodics, periodiccnt - 1);
994	}
995		1361
		1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1363	}
		1364
996	void	1365	void
997	ev_periodic_stop (struct ev_periodic *w)	1366	ev_periodic_stop (EV_P_ struct ev_periodic *w)
998	{	1367	{
999	ev_clear_pending ((W)w);	1368	ev_clear_pending (EV_A_ (W)w);
1000	if (!ev_is_active (w))	1369	if (!ev_is_active (w))
1001	return;	1370	return;
1002		1371
		1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1373
1003	if (w->active < periodiccnt--)	1374	if (((W)w)->active < periodiccnt--)
1004	{	1375	{
1005	periodics [w->active - 1] = periodics [periodiccnt];	1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1006	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1007	}	1378	}
1008		1379
1009	ev_stop ((W)w);	1380	ev_stop (EV_A_ (W)w);
1010	}	1381	}
1011		1382
1012	void	1383	void
1013	ev_signal_start (struct ev_signal *w)	1384	ev_idle_start (EV_P_ struct ev_idle *w)
1014	{	1385	{
1015	if (ev_is_active (w))	1386	if (ev_is_active (w))
1016	return;	1387	return;
1017		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
1018	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));
1019		1463
1020	ev_start ((W)w, 1);	1464	ev_start (EV_A_ (W)w, 1);
1021	array_needsize (signals, signalmax, w->signum, signals_init);	1465	array_needsize (signals, signalmax, w->signum, signals_init);
1022	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1023		1467
1024	if (!w->next)	1468	if (!((WL)w)->next)
1025	{	1469	{
		1470	#if WIN32
		1471	signal (w->signum, sighandler);
		1472	#else
1026	struct sigaction sa;	1473	struct sigaction sa;
1027	sa.sa_handler = sighandler;	1474	sa.sa_handler = sighandler;
1028	sigfillset (&sa.sa_mask);	1475	sigfillset (&sa.sa_mask);
1029	sa.sa_flags = 0;	1476	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1030	sigaction (w->signum, &sa, 0);	1477	sigaction (w->signum, &sa, 0);
		1478	#endif
1031	}	1479	}
1032	}	1480	}
1033		1481
1034	void	1482	void
1035	ev_signal_stop (struct ev_signal *w)	1483	ev_signal_stop (EV_P_ struct ev_signal *w)
1036	{	1484	{
1037	ev_clear_pending ((W)w);	1485	ev_clear_pending (EV_A_ (W)w);
1038	if (!ev_is_active (w))	1486	if (!ev_is_active (w))
1039	return;	1487	return;
1040		1488
1041	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1489	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1042	ev_stop ((W)w);	1490	ev_stop (EV_A_ (W)w);
1043		1491
1044	if (!signals [w->signum - 1].head)	1492	if (!signals [w->signum - 1].head)
1045	signal (w->signum, SIG_DFL);	1493	signal (w->signum, SIG_DFL);
1046	}	1494	}
1047		1495
1048	void	1496	void
1049	ev_idle_start (struct ev_idle *w)	1497	ev_child_start (EV_P_ struct ev_child *w)
1050	{	1498	{
		1499	#if EV_MULTIPLICITY
		1500	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1501	#endif
1051	if (ev_is_active (w))	1502	if (ev_is_active (w))
1052	return;	1503	return;
1053		1504
1054	ev_start ((W)w, ++idlecnt);	1505	ev_start (EV_A_ (W)w, 1);
1055	array_needsize (idles, idlemax, idlecnt, );	1506	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1056	idles [idlecnt - 1] = w;
1057	}	1507	}
1058		1508
1059	void	1509	void
1060	ev_idle_stop (struct ev_idle *w)	1510	ev_child_stop (EV_P_ struct ev_child *w)
1061	{	1511	{
1062	ev_clear_pending ((W)w);	1512	ev_clear_pending (EV_A_ (W)w);
1063	if (ev_is_active (w))	1513	if (ev_is_active (w))
1064	return;	1514	return;
1065		1515
1066	idles [w->active - 1] = idles [--idlecnt];
1067	ev_stop ((W)w);
1068	}
1069
1070	void
1071	ev_prepare_start (struct ev_prepare *w)
1072	{
1073	if (ev_is_active (w))
1074	return;
1075
1076	ev_start ((W)w, ++preparecnt);
1077	array_needsize (prepares, preparemax, preparecnt, );
1078	prepares [preparecnt - 1] = w;
1079	}
1080
1081	void
1082	ev_prepare_stop (struct ev_prepare *w)
1083	{
1084	ev_clear_pending ((W)w);
1085	if (ev_is_active (w))
1086	return;
1087
1088	prepares [w->active - 1] = prepares [--preparecnt];
1089	ev_stop ((W)w);
1090	}
1091
1092	void
1093	ev_check_start (struct ev_check *w)
1094	{
1095	if (ev_is_active (w))
1096	return;
1097
1098	ev_start ((W)w, ++checkcnt);
1099	array_needsize (checks, checkmax, checkcnt, );
1100	checks [checkcnt - 1] = w;
1101	}
1102
1103	void
1104	ev_check_stop (struct ev_check *w)
1105	{
1106	ev_clear_pending ((W)w);
1107	if (ev_is_active (w))
1108	return;
1109
1110	checks [w->active - 1] = checks [--checkcnt];
1111	ev_stop ((W)w);
1112	}
1113
1114	void
1115	ev_child_start (struct ev_child *w)
1116	{
1117	if (ev_is_active (w))
1118	return;
1119
1120	ev_start ((W)w, 1);
1121	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	}
1123
1124	void
1125	ev_child_stop (struct ev_child *w)
1126	{
1127	ev_clear_pending ((W)w);
1128	if (ev_is_active (w))
1129	return;
1130
1131	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1132	ev_stop ((W)w);	1517	ev_stop (EV_A_ (W)w);
1133	}	1518	}
1134		1519
1135	/*****************************************************************************/	1520	/*****************************************************************************/
1136		1521
1137	struct ev_once	1522	struct ev_once
…		…
1141	void (*cb)(int revents, void *arg);	1526	void (*cb)(int revents, void *arg);
1142	void *arg;	1527	void *arg;
1143	};	1528	};
1144		1529
1145	static void	1530	static void
1146	once_cb (struct ev_once *once, int revents)	1531	once_cb (EV_P_ struct ev_once *once, int revents)
1147	{	1532	{
1148	void (*cb)(int revents, void *arg) = once->cb;	1533	void (*cb)(int revents, void *arg) = once->cb;
1149	void *arg = once->arg;	1534	void *arg = once->arg;
1150		1535
1151	ev_io_stop (&once->io);	1536	ev_io_stop (EV_A_ &once->io);
1152	ev_timer_stop (&once->to);	1537	ev_timer_stop (EV_A_ &once->to);
1153	free (once);	1538	ev_free (once);
1154		1539
1155	cb (revents, arg);	1540	cb (revents, arg);
1156	}	1541	}
1157		1542
1158	static void	1543	static void
1159	once_cb_io (struct ev_io *w, int revents)	1544	once_cb_io (EV_P_ struct ev_io *w, int revents)
1160	{	1545	{
1161	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);
1162	}	1547	}
1163		1548
1164	static void	1549	static void
1165	once_cb_to (struct ev_timer *w, int revents)	1550	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1166	{	1551	{
1167	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);
1168	}	1553	}
1169		1554
1170	void	1555	void
1171	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)
1172	{	1557	{
1173	struct ev_once *once = malloc (sizeof (struct ev_once));	1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1174		1559
1175	if (!once)	1560	if (!once)
1176	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1561	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1177	else	1562	else
1178	{	1563	{
…		…
1181		1566
1182	ev_watcher_init (&once->io, once_cb_io);	1567	ev_watcher_init (&once->io, once_cb_io);
1183	if (fd >= 0)	1568	if (fd >= 0)
1184	{	1569	{
1185	ev_io_set (&once->io, fd, events);	1570	ev_io_set (&once->io, fd, events);
1186	ev_io_start (&once->io);	1571	ev_io_start (EV_A_ &once->io);
1187	}	1572	}
1188		1573
1189	ev_watcher_init (&once->to, once_cb_to);	1574	ev_watcher_init (&once->to, once_cb_to);
1190	if (timeout >= 0.)	1575	if (timeout >= 0.)
1191	{	1576	{
1192	ev_timer_set (&once->to, timeout, 0.);	1577	ev_timer_set (&once->to, timeout, 0.);
1193	ev_timer_start (&once->to);	1578	ev_timer_start (EV_A_ &once->to);
1194	}	1579	}
1195	}	1580	}
1196	}	1581	}
1197		1582
1198	/*****************************************************************************/
1199
1200	#if 0
1201
1202	struct ev_io wio;
1203
1204	static void
1205	sin_cb (struct ev_io *w, int revents)
1206	{
1207	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1208	}
1209
1210	static void
1211	ocb (struct ev_timer *w, int revents)
1212	{
1213	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1214	ev_timer_stop (w);
1215	ev_timer_start (w);
1216	}
1217
1218	static void
1219	scb (struct ev_signal *w, int revents)
1220	{
1221	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1222	ev_io_stop (&wio);
1223	ev_io_start (&wio);
1224	}
1225
1226	static void
1227	gcb (struct ev_signal *w, int revents)
1228	{
1229	fprintf (stderr, "generic %x\n", revents);
1230
1231	}
1232
1233	int main (void)
1234	{
1235	ev_init (0);
1236
1237	ev_io_init (&wio, sin_cb, 0, EV_READ);
1238	ev_io_start (&wio);
1239
1240	struct ev_timer t[10000];
1241
1242	#if 0
1243	int i;
1244	for (i = 0; i < 10000; ++i)
1245	{
1246	struct ev_timer *w = t + i;
1247	ev_watcher_init (w, ocb, i);
1248	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1249	ev_timer_start (w);
1250	if (drand48 () < 0.5)
1251	ev_timer_stop (w);
1252	}
1253	#endif
1254
1255	struct ev_timer t1;
1256	ev_timer_init (&t1, ocb, 5, 10);
1257	ev_timer_start (&t1);
1258
1259	struct ev_signal sig;
1260	ev_signal_init (&sig, scb, SIGQUIT);
1261	ev_signal_start (&sig);
1262
1263	struct ev_check cw;
1264	ev_check_init (&cw, gcb);
1265	ev_check_start (&cw);
1266
1267	struct ev_idle iw;
1268	ev_idle_init (&iw, gcb);
1269	ev_idle_start (&iw);
1270
1271	ev_loop (0);
1272
1273	return 0;
1274	}
1275
1276	#endif
1277
1278
1279
1280

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