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

Comparing libev/ev.c (file contents):
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs.
Revision 1.139 by root, Sun Nov 25 09:24:37 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
32	# include "config.h"	40	# include "config.h"
		41	# endif
33		42
34	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
37	# endif	57	# endif
38		58
		59	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
41	# endif	65	# endif
42		66
		67	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
45	# endif	73	# endif
46		74
		75	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
49	# endif	81	# endif
50		82
		83	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
53	# endif	97	# endif
54		98
55	#endif	99	#endif
56		100
57	#include <math.h>	101	#include <math.h>
…		…
66	#include <sys/types.h>	110	#include <sys/types.h>
67	#include <time.h>	111	#include <time.h>
68		112
69	#include <signal.h>	113	#include <signal.h>
70		114
71	#ifndef WIN32	115	#ifndef _WIN32
72	# include <unistd.h>	116	# include <unistd.h>
73	# include <sys/time.h>	117	# include <sys/time.h>
74	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	124	# endif
		125	#endif
		126
76	/**/	127	/**/
77		128
78	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
80	#endif	135	#endif
81		136
82	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
84	#endif	139	#endif
85		140
86	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
88	#endif	147	#endif
89		148
90	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
92	#endif	151	#endif
93		152
94	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
96	#endif	155	#endif
97		156
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
106	#endif
107
108	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
110	#endif	159	#endif
111		160
112	/**/	161	/**/
113		162
114	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
119	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
122	#endif	171	#endif
123		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
124	/**/	177	/**/
125		178
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
131	#include "ev.h"	187	# include "ev.h"
		188	#endif
132		189
133	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	192	# define inline static inline
136	#else	193	#else
137	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
138	# define inline static	195	# define inline static
139	#endif	196	#endif
140		197
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
143		200
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
147	typedef struct ev_watcher *W;	207	typedef ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	208	typedef ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	209	typedef ev_watcher_time *WT;
150		210
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		212
		213	#ifdef _WIN32
153	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
154		216
155	/*****************************************************************************/	217	/*****************************************************************************/
156		218
157	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
158		220
…		…
205	typedef struct	267	typedef struct
206	{	268	{
207	WL head;	269	WL head;
208	unsigned char events;	270	unsigned char events;
209	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
210	} ANFD;	275	} ANFD;
211		276
212	typedef struct	277	typedef struct
213	{	278	{
214	W w;	279	W w;
215	int events;	280	int events;
216	} ANPENDING;	281	} ANPENDING;
217		282
218	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
219		284
220	struct ev_loop	285	struct ev_loop
221	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	290	#include "ev_vars.h"
224	};
225	# undef VAR	291	#undef VAR
		292	};
226	# include "ev_wrap.h"	293	#include "ev_wrap.h"
		294
		295	static struct ev_loop default_loop_struct;
		296	struct ev_loop *ev_default_loop_ptr;
227		297
228	#else	298	#else
229		299
		300	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	302	#include "ev_vars.h"
232	# undef VAR	303	#undef VAR
		304
		305	static int ev_default_loop_ptr;
233		306
234	#endif	307	#endif
235		308
236	/*****************************************************************************/	309	/*****************************************************************************/
237		310
238	inline ev_tstamp	311	ev_tstamp
239	ev_time (void)	312	ev_time (void)
240	{	313	{
241	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
242	struct timespec ts;	315	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	335	#endif
263		336
264	return ev_time ();	337	return ev_time ();
265	}	338	}
266		339
		340	#if EV_MULTIPLICITY
267	ev_tstamp	341	ev_tstamp
268	ev_now (EV_P)	342	ev_now (EV_P)
269	{	343	{
270	return rt_now;	344	return ev_rt_now;
271	}	345	}
		346	#endif
272		347
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		349
275	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
277	{ \	352	{ \
278	int newcnt = cur; \	353	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	371	}
297		372
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) \	373	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		375
306	/*****************************************************************************/	376	/*****************************************************************************/
307		377
…		…
321	void	391	void
322	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
323	{	393	{
324	W w_ = (W)w;	394	W w_ = (W)w;
325		395
326	if (w_->pending)	396	if (expect_false (w_->pending))
327	{	397	{
328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
329	return;	399	return;
330	}	400	}
331		401
332	w_->pending = ++pendingcnt [ABSPRI (w_)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336	}	406	}
337		407
338	static void	408	static void
…		…
342		412
343	for (i = 0; i < eventcnt; ++i)	413	for (i = 0; i < eventcnt; ++i)
344	ev_feed_event (EV_A_ events [i], type);	414	ev_feed_event (EV_A_ events [i], type);
345	}	415	}
346		416
347	static void	417	inline void
348	fd_event (EV_P_ int fd, int events)	418	fd_event (EV_P_ int fd, int revents)
349	{	419	{
350	ANFD *anfd = anfds + fd;	420	ANFD *anfd = anfds + fd;
351	struct ev_io *w;	421	ev_io *w;
352		422
353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	423	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
354	{	424	{
355	int ev = w->events & events;	425	int ev = w->events & revents;
356		426
357	if (ev)	427	if (ev)
358	ev_feed_event (EV_A_ (W)w, ev);	428	ev_feed_event (EV_A_ (W)w, ev);
359	}	429	}
360	}	430	}
361		431
		432	void
		433	ev_feed_fd_event (EV_P_ int fd, int revents)
		434	{
		435	fd_event (EV_A_ fd, revents);
		436	}
		437
362	/*****************************************************************************/	438	/*****************************************************************************/
363		439
364	static void	440	inline void
365	fd_reify (EV_P)	441	fd_reify (EV_P)
366	{	442	{
367	int i;	443	int i;
368		444
369	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
370	{	446	{
371	int fd = fdchanges [i];	447	int fd = fdchanges [i];
372	ANFD *anfd = anfds + fd;	448	ANFD *anfd = anfds + fd;
373	struct ev_io *w;	449	ev_io *w;
374		450
375	int events = 0;	451	int events = 0;
376		452
377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	453	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
378	events \|= w->events;	454	events \|= w->events;
379		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
380	anfd->reify = 0;	465	anfd->reify = 0;
381		466
382	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
383	anfd->events = events;	468	anfd->events = events;
384	}	469	}
385		470
386	fdchangecnt = 0;	471	fdchangecnt = 0;
387	}	472	}
388		473
389	static void	474	static void
390	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
391	{	476	{
392	if (anfds [fd].reify)	477	if (expect_false (anfds [fd].reify))
393	return;	478	return;
394		479
395	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
396		481
397	++fdchangecnt;	482	++fdchangecnt;
398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
399	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
400	}	485	}
401		486
402	static void	487	static void
403	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
404	{	489	{
405	struct ev_io *w;	490	ev_io *w;
406		491
407	while ((w = (struct ev_io *)anfds [fd].head))	492	while ((w = (ev_io *)anfds [fd].head))
408	{	493	{
409	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
410	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
411	}	496	}
412	}	497	}
413		498
414	static int	499	inline int
415	fd_valid (int fd)	500	fd_valid (int fd)
416	{	501	{
417	#ifdef WIN32	502	#ifdef _WIN32
418	return !!win32_get_osfhandle (fd);	503	return _get_osfhandle (fd) != -1;
419	#else	504	#else
420	return fcntl (fd, F_GETFD) != -1;	505	return fcntl (fd, F_GETFD) != -1;
421	#endif	506	#endif
422	}	507	}
423		508
…		…
445	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
446	return;	531	return;
447	}	532	}
448	}	533	}
449		534
450	/* usually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
451	static void	536	static void
452	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
453	{	538	{
454	int fd;	539	int fd;
455		540
…		…
503		588
504	heap [k] = w;	589	heap [k] = w;
505	((W)heap [k])->active = k + 1;	590	((W)heap [k])->active = k + 1;
506	}	591	}
507		592
		593	inline void
		594	adjustheap (WT *heap, int N, int k)
		595	{
		596	upheap (heap, k);
		597	downheap (heap, N, k);
		598	}
		599
508	/*****************************************************************************/	600	/*****************************************************************************/
509		601
510	typedef struct	602	typedef struct
511	{	603	{
512	WL head;	604	WL head;
…		…
516	static ANSIG *signals;	608	static ANSIG *signals;
517	static int signalmax;	609	static int signalmax;
518		610
519	static int sigpipe [2];	611	static int sigpipe [2];
520	static sig_atomic_t volatile gotsig;	612	static sig_atomic_t volatile gotsig;
521	static struct ev_io sigev;	613	static ev_io sigev;
522		614
523	static void	615	static void
524	signals_init (ANSIG *base, int count)	616	signals_init (ANSIG *base, int count)
525	{	617	{
526	while (count--)	618	while (count--)
…		…
533	}	625	}
534		626
535	static void	627	static void
536	sighandler (int signum)	628	sighandler (int signum)
537	{	629	{
538	#if WIN32	630	#if _WIN32
539	signal (signum, sighandler);	631	signal (signum, sighandler);
540	#endif	632	#endif
541		633
542	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
543		635
544	if (!gotsig)	636	if (!gotsig)
545	{	637	{
546	int old_errno = errno;	638	int old_errno = errno;
547	gotsig = 1;	639	gotsig = 1;
548	#ifdef WIN32
549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
550	#else
551	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
552	#endif
553	errno = old_errno;	641	errno = old_errno;
554	}	642	}
555	}	643	}
556		644
557	static void	645	void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	646	ev_feed_signal_event (EV_P_ int signum)
559	{	647	{
560	WL w;	648	WL w;
		649
		650	#if EV_MULTIPLICITY
		651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		652	#endif
		653
		654	--signum;
		655
		656	if (signum < 0 \|\| signum >= signalmax)
		657	return;
		658
		659	signals [signum].gotsig = 0;
		660
		661	for (w = signals [signum].head; w; w = w->next)
		662	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		663	}
		664
		665	static void
		666	sigcb (EV_P_ ev_io *iow, int revents)
		667	{
561	int signum;	668	int signum;
562		669
563	#ifdef WIN32
564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
565	#else
566	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
567	#endif
568	gotsig = 0;	671	gotsig = 0;
569		672
570	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
571	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
572	{	675	ev_feed_signal_event (EV_A_ signum + 1);
573	signals [signum].gotsig = 0;	676	}
574		677
575	for (w = signals [signum].head; w; w = w->next)	678	static void
576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	679	fd_intern (int fd)
577	}	680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
578	}	688	}
579		689
580	static void	690	static void
581	siginit (EV_P)	691	siginit (EV_P)
582	{	692	{
583	#ifndef WIN32	693	fd_intern (sigpipe [0]);
584	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	fd_intern (sigpipe [1]);
585	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
586
587	/* rather than sort out wether we really need nb, set it */
588	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
589	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
590	#endif
591		695
592	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
593	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
594	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
595	}	699	}
596		700
597	/*****************************************************************************/	701	/*****************************************************************************/
598		702
599	static struct ev_child *childs [PID_HASHSIZE];	703	static ev_child *childs [PID_HASHSIZE];
600		704
601	#ifndef WIN32	705	#ifndef _WIN32
602		706
603	static struct ev_signal childev;	707	static ev_signal childev;
604		708
605	#ifndef WCONTINUED	709	#ifndef WCONTINUED
606	# define WCONTINUED 0	710	# define WCONTINUED 0
607	#endif	711	#endif
608		712
609	static void	713	static void
610	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	714	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
611	{	715	{
612	struct ev_child *w;	716	ev_child *w;
613		717
614	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	718	for (w = (ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
615	if (w->pid == pid \|\| !w->pid)	719	if (w->pid == pid \|\| !w->pid)
616	{	720	{
617	ev_priority (w) = ev_priority (sw); /* need to do it now */	721	ev_priority (w) = ev_priority (sw); /* need to do it now */
618	w->rpid = pid;	722	w->rpid = pid;
619	w->rstatus = status;	723	w->rstatus = status;
620	ev_feed_event (EV_A_ (W)w, EV_CHILD);	724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
621	}	725	}
622	}	726	}
623		727
624	static void	728	static void
625	childcb (EV_P_ struct ev_signal *sw, int revents)	729	childcb (EV_P_ ev_signal *sw, int revents)
626	{	730	{
627	int pid, status;	731	int pid, status;
628		732
629	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
630	{	734	{
631	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
632	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
633		738
634	child_reap (EV_A_ sw, pid, pid, status);	739	child_reap (EV_A_ sw, pid, pid, status);
635	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
636	}	741	}
637	}	742	}
638		743
639	#endif	744	#endif
640		745
641	/*****************************************************************************/	746	/*****************************************************************************/
642		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
643	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
644	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
645	#endif	753	#endif
646	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
647	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
667		775
668	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
669	static int	777	static int
670	enable_secure (void)	778	enable_secure (void)
671	{	779	{
672	#ifdef WIN32	780	#ifdef _WIN32
673	return 0;	781	return 0;
674	#else	782	#else
675	return getuid () != geteuid ()	783	return getuid () != geteuid ()
676	\|\| getgid () != getegid ();	784	\|\| getgid () != getegid ();
677	#endif	785	#endif
678	}	786	}
679		787
680	int	788	unsigned int
681	ev_method (EV_P)	789	ev_supported_backends (void)
682	{	790	{
683	return method;	791	unsigned int flags = 0;
684	}
685		792
686	static void	793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
687	loop_init (EV_P_ int methods)	794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_recommended_backends (void)
688	{	804	{
689	if (!method)	805	unsigned int flags = ev_supported_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
		820	unsigned int
		821	ev_embeddable_backends (void)
		822	{
		823	return EVBACKEND_EPOLL
		824	\| EVBACKEND_KQUEUE
		825	\| EVBACKEND_PORT;
		826	}
		827
		828	unsigned int
		829	ev_backend (EV_P)
		830	{
		831	return backend;
		832	}
		833
		834	static void
		835	loop_init (EV_P_ unsigned int flags)
		836	{
		837	if (!backend)
690	{	838	{
691	#if EV_USE_MONOTONIC	839	#if EV_USE_MONOTONIC
692	{	840	{
693	struct timespec ts;	841	struct timespec ts;
694	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	842	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
695	have_monotonic = 1;	843	have_monotonic = 1;
696	}	844	}
697	#endif	845	#endif
698		846
699	rt_now = ev_time ();	847	ev_rt_now = ev_time ();
700	mn_now = get_clock ();	848	mn_now = get_clock ();
701	now_floor = mn_now;	849	now_floor = mn_now;
702	rtmn_diff = rt_now - mn_now;	850	rtmn_diff = ev_rt_now - mn_now;
703		851
704	if (methods == EVMETHOD_AUTO)	852	if (!(flags & EVFLAG_NOENV)
705	if (!enable_secure () && getenv ("LIBEV_METHODS"))	853	&& !enable_secure ()
		854	&& getenv ("LIBEV_FLAGS"))
706	methods = atoi (getenv ("LIBEV_METHODS"));	855	flags = atoi (getenv ("LIBEV_FLAGS"));
707	else
708	methods = EVMETHOD_ANY;
709		856
710	method = 0;	857	if (!(flags & 0x0000ffffUL))
711	#if EV_USE_WIN32	858	flags \|= ev_recommended_backends ();
712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	859
		860	backend = 0;
		861	#if EV_USE_PORT
		862	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
713	#endif	863	#endif
714	#if EV_USE_KQUEUE	864	#if EV_USE_KQUEUE
715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	865	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
716	#endif	866	#endif
717	#if EV_USE_EPOLL	867	#if EV_USE_EPOLL
718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
719	#endif	869	#endif
720	#if EV_USE_POLL	870	#if EV_USE_POLL
721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
722	#endif	872	#endif
723	#if EV_USE_SELECT	873	#if EV_USE_SELECT
724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
725	#endif	875	#endif
726		876
727	ev_watcher_init (&sigev, sigcb);	877	ev_init (&sigev, sigcb);
728	ev_set_priority (&sigev, EV_MAXPRI);	878	ev_set_priority (&sigev, EV_MAXPRI);
729	}	879	}
730	}	880	}
731		881
732	void	882	static void
733	loop_destroy (EV_P)	883	loop_destroy (EV_P)
734	{	884	{
735	int i;	885	int i;
736		886
737	#if EV_USE_WIN32	887	#if EV_USE_PORT
738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	888	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
739	#endif	889	#endif
740	#if EV_USE_KQUEUE	890	#if EV_USE_KQUEUE
741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	891	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
742	#endif	892	#endif
743	#if EV_USE_EPOLL	893	#if EV_USE_EPOLL
744	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	894	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
745	#endif	895	#endif
746	#if EV_USE_POLL	896	#if EV_USE_POLL
747	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	897	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
748	#endif	898	#endif
749	#if EV_USE_SELECT	899	#if EV_USE_SELECT
750	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	900	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
751	#endif	901	#endif
752		902
753	for (i = NUMPRI; i--; )	903	for (i = NUMPRI; i--; )
754	array_free (pending, [i]);	904	array_free (pending, [i]);
755		905
756	/* have to use the microsoft-never-gets-it-right macro */	906	/* have to use the microsoft-never-gets-it-right macro */
757	array_free_microshit (fdchange);	907	array_free (fdchange, EMPTY0);
758	array_free_microshit (timer);	908	array_free (timer, EMPTY0);
759	array_free_microshit (periodic);	909	#if EV_PERIODICS
760	array_free_microshit (idle);	910	array_free (periodic, EMPTY0);
761	array_free_microshit (prepare);	911	#endif
762	array_free_microshit (check);	912	array_free (idle, EMPTY0);
		913	array_free (prepare, EMPTY0);
		914	array_free (check, EMPTY0);
763		915
764	method = 0;	916	backend = 0;
765	}	917	}
766		918
767	static void	919	static void
768	loop_fork (EV_P)	920	loop_fork (EV_P)
769	{	921	{
		922	#if EV_USE_PORT
		923	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		924	#endif
		925	#if EV_USE_KQUEUE
		926	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		927	#endif
770	#if EV_USE_EPOLL	928	#if EV_USE_EPOLL
771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	929	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
772	#endif
773	#if EV_USE_KQUEUE
774	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
775	#endif	930	#endif
776		931
777	if (ev_is_active (&sigev))	932	if (ev_is_active (&sigev))
778	{	933	{
779	/* default loop */	934	/* default loop */
…		…
792	postfork = 0;	947	postfork = 0;
793	}	948	}
794		949
795	#if EV_MULTIPLICITY	950	#if EV_MULTIPLICITY
796	struct ev_loop *	951	struct ev_loop *
797	ev_loop_new (int methods)	952	ev_loop_new (unsigned int flags)
798	{	953	{
799	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	954	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
800		955
801	memset (loop, 0, sizeof (struct ev_loop));	956	memset (loop, 0, sizeof (struct ev_loop));
802		957
803	loop_init (EV_A_ methods);	958	loop_init (EV_A_ flags);
804		959
805	if (ev_method (EV_A))	960	if (ev_backend (EV_A))
806	return loop;	961	return loop;
807		962
808	return 0;	963	return 0;
809	}	964	}
810		965
…		…
822	}	977	}
823		978
824	#endif	979	#endif
825		980
826	#if EV_MULTIPLICITY	981	#if EV_MULTIPLICITY
827	struct ev_loop default_loop_struct;
828	static struct ev_loop *default_loop;
829
830	struct ev_loop *	982	struct ev_loop *
		983	ev_default_loop_init (unsigned int flags)
831	#else	984	#else
832	static int default_loop;
833
834	int	985	int
		986	ev_default_loop (unsigned int flags)
835	#endif	987	#endif
836	ev_default_loop (int methods)
837	{	988	{
838	if (sigpipe [0] == sigpipe [1])	989	if (sigpipe [0] == sigpipe [1])
839	if (pipe (sigpipe))	990	if (pipe (sigpipe))
840	return 0;	991	return 0;
841		992
842	if (!default_loop)	993	if (!ev_default_loop_ptr)
843	{	994	{
844	#if EV_MULTIPLICITY	995	#if EV_MULTIPLICITY
845	struct ev_loop *loop = default_loop = &default_loop_struct;	996	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
846	#else	997	#else
847	default_loop = 1;	998	ev_default_loop_ptr = 1;
848	#endif	999	#endif
849		1000
850	loop_init (EV_A_ methods);	1001	loop_init (EV_A_ flags);
851		1002
852	if (ev_method (EV_A))	1003	if (ev_backend (EV_A))
853	{	1004	{
854	siginit (EV_A);	1005	siginit (EV_A);
855		1006
856	#ifndef WIN32	1007	#ifndef _WIN32
857	ev_signal_init (&childev, childcb, SIGCHLD);	1008	ev_signal_init (&childev, childcb, SIGCHLD);
858	ev_set_priority (&childev, EV_MAXPRI);	1009	ev_set_priority (&childev, EV_MAXPRI);
859	ev_signal_start (EV_A_ &childev);	1010	ev_signal_start (EV_A_ &childev);
860	ev_unref (EV_A); /* child watcher should not keep loop alive */	1011	ev_unref (EV_A); /* child watcher should not keep loop alive */
861	#endif	1012	#endif
862	}	1013	}
863	else	1014	else
864	default_loop = 0;	1015	ev_default_loop_ptr = 0;
865	}	1016	}
866		1017
867	return default_loop;	1018	return ev_default_loop_ptr;
868	}	1019	}
869		1020
870	void	1021	void
871	ev_default_destroy (void)	1022	ev_default_destroy (void)
872	{	1023	{
873	#if EV_MULTIPLICITY	1024	#if EV_MULTIPLICITY
874	struct ev_loop *loop = default_loop;	1025	struct ev_loop *loop = ev_default_loop_ptr;
875	#endif	1026	#endif
876		1027
877	#ifndef WIN32	1028	#ifndef _WIN32
878	ev_ref (EV_A); /* child watcher */	1029	ev_ref (EV_A); /* child watcher */
879	ev_signal_stop (EV_A_ &childev);	1030	ev_signal_stop (EV_A_ &childev);
880	#endif	1031	#endif
881		1032
882	ev_ref (EV_A); /* signal watcher */	1033	ev_ref (EV_A); /* signal watcher */
…		…
890		1041
891	void	1042	void
892	ev_default_fork (void)	1043	ev_default_fork (void)
893	{	1044	{
894	#if EV_MULTIPLICITY	1045	#if EV_MULTIPLICITY
895	struct ev_loop *loop = default_loop;	1046	struct ev_loop *loop = ev_default_loop_ptr;
896	#endif	1047	#endif
897		1048
898	if (method)	1049	if (backend)
899	postfork = 1;	1050	postfork = 1;
900	}	1051	}
901		1052
902	/*****************************************************************************/	1053	/*****************************************************************************/
903		1054
…		…
911	return 1;	1062	return 1;
912		1063
913	return 0;	1064	return 0;
914	}	1065	}
915		1066
916	static void	1067	inline void
917	call_pending (EV_P)	1068	call_pending (EV_P)
918	{	1069	{
919	int pri;	1070	int pri;
920		1071
921	for (pri = NUMPRI; pri--; )	1072	for (pri = NUMPRI; pri--; )
922	while (pendingcnt [pri])	1073	while (pendingcnt [pri])
923	{	1074	{
924	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1075	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
925		1076
926	if (p->w)	1077	if (expect_true (p->w))
927	{	1078	{
		1079	assert (("non-pending watcher on pending list", p->w->pending));
		1080
928	p->w->pending = 0;	1081	p->w->pending = 0;
929	p->w->cb (EV_A_ p->w, p->events);	1082	EV_CB_INVOKE (p->w, p->events);
930	}	1083	}
931	}	1084	}
932	}	1085	}
933		1086
934	static void	1087	inline void
935	timers_reify (EV_P)	1088	timers_reify (EV_P)
936	{	1089	{
937	while (timercnt && ((WT)timers [0])->at <= mn_now)	1090	while (timercnt && ((WT)timers [0])->at <= mn_now)
938	{	1091	{
939	struct ev_timer *w = timers [0];	1092	ev_timer *w = timers [0];
940		1093
941	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1094	assert (("inactive timer on timer heap detected", ev_is_active (w)));
942		1095
943	/* first reschedule or stop timer */	1096	/* first reschedule or stop timer */
944	if (w->repeat)	1097	if (w->repeat)
945	{	1098	{
946	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1099	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1100
947	((WT)w)->at = mn_now + w->repeat;	1101	((WT)w)->at += w->repeat;
		1102	if (((WT)w)->at < mn_now)
		1103	((WT)w)->at = mn_now;
		1104
948	downheap ((WT *)timers, timercnt, 0);	1105	downheap ((WT *)timers, timercnt, 0);
949	}	1106	}
950	else	1107	else
951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1108	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
952		1109
953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1110	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
954	}	1111	}
955	}	1112	}
956		1113
957	static void	1114	#if EV_PERIODICS
		1115	inline void
958	periodics_reify (EV_P)	1116	periodics_reify (EV_P)
959	{	1117	{
960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1118	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
961	{	1119	{
962	struct ev_periodic *w = periodics [0];	1120	ev_periodic *w = periodics [0];
963		1121
964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1122	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
965		1123
966	/* first reschedule or stop timer */	1124	/* first reschedule or stop timer */
967	if (w->reschedule_cb)	1125	if (w->reschedule_cb)
968	{	1126	{
969	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1127	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
970
971	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1128	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
972	downheap ((WT *)periodics, periodiccnt, 0);	1129	downheap ((WT *)periodics, periodiccnt, 0);
973	}	1130	}
974	else if (w->interval)	1131	else if (w->interval)
975	{	1132	{
976	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1133	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
977	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1134	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
978	downheap ((WT *)periodics, periodiccnt, 0);	1135	downheap ((WT *)periodics, periodiccnt, 0);
979	}	1136	}
980	else	1137	else
981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1138	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
982		1139
…		…
990	int i;	1147	int i;
991		1148
992	/* adjust periodics after time jump */	1149	/* adjust periodics after time jump */
993	for (i = 0; i < periodiccnt; ++i)	1150	for (i = 0; i < periodiccnt; ++i)
994	{	1151	{
995	struct ev_periodic *w = periodics [i];	1152	ev_periodic *w = periodics [i];
996		1153
997	if (w->reschedule_cb)	1154	if (w->reschedule_cb)
998	((WT)w)->at = w->reschedule_cb (w, rt_now);	1155	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
999	else if (w->interval)	1156	else if (w->interval)
1000	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1157	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1001	}	1158	}
1002		1159
1003	/* now rebuild the heap */	1160	/* now rebuild the heap */
1004	for (i = periodiccnt >> 1; i--; )	1161	for (i = periodiccnt >> 1; i--; )
1005	downheap ((WT *)periodics, periodiccnt, i);	1162	downheap ((WT *)periodics, periodiccnt, i);
1006	}	1163	}
		1164	#endif
1007		1165
1008	inline int	1166	inline int
1009	time_update_monotonic (EV_P)	1167	time_update_monotonic (EV_P)
1010	{	1168	{
1011	mn_now = get_clock ();	1169	mn_now = get_clock ();
1012		1170
1013	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1171	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1014	{	1172	{
1015	rt_now = rtmn_diff + mn_now;	1173	ev_rt_now = rtmn_diff + mn_now;
1016	return 0;	1174	return 0;
1017	}	1175	}
1018	else	1176	else
1019	{	1177	{
1020	now_floor = mn_now;	1178	now_floor = mn_now;
1021	rt_now = ev_time ();	1179	ev_rt_now = ev_time ();
1022	return 1;	1180	return 1;
1023	}	1181	}
1024	}	1182	}
1025		1183
1026	static void	1184	inline void
1027	time_update (EV_P)	1185	time_update (EV_P)
1028	{	1186	{
1029	int i;	1187	int i;
1030		1188
1031	#if EV_USE_MONOTONIC	1189	#if EV_USE_MONOTONIC
…		…
1033	{	1191	{
1034	if (time_update_monotonic (EV_A))	1192	if (time_update_monotonic (EV_A))
1035	{	1193	{
1036	ev_tstamp odiff = rtmn_diff;	1194	ev_tstamp odiff = rtmn_diff;
1037		1195
1038	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1196	/* loop a few times, before making important decisions.
		1197	* on the choice of "4": one iteration isn't enough,
		1198	* in case we get preempted during the calls to
		1199	* ev_time and get_clock. a second call is almost guarenteed
		1200	* to succeed in that case, though. and looping a few more times
		1201	* doesn't hurt either as we only do this on time-jumps or
		1202	* in the unlikely event of getting preempted here.
		1203	*/
		1204	for (i = 4; --i; )
1039	{	1205	{
1040	rtmn_diff = rt_now - mn_now;	1206	rtmn_diff = ev_rt_now - mn_now;
1041		1207
1042	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1208	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1043	return; /* all is well */	1209	return; /* all is well */
1044		1210
1045	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
1046	mn_now = get_clock ();	1212	mn_now = get_clock ();
1047	now_floor = mn_now;	1213	now_floor = mn_now;
1048	}	1214	}
1049		1215
		1216	# if EV_PERIODICS
1050	periodics_reschedule (EV_A);	1217	periodics_reschedule (EV_A);
		1218	# endif
1051	/* no timer adjustment, as the monotonic clock doesn't jump */	1219	/* no timer adjustment, as the monotonic clock doesn't jump */
1052	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1220	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1053	}	1221	}
1054	}	1222	}
1055	else	1223	else
1056	#endif	1224	#endif
1057	{	1225	{
1058	rt_now = ev_time ();	1226	ev_rt_now = ev_time ();
1059		1227
1060	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1228	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1061	{	1229	{
		1230	#if EV_PERIODICS
1062	periodics_reschedule (EV_A);	1231	periodics_reschedule (EV_A);
		1232	#endif
1063		1233
1064	/* adjust timers. this is easy, as the offset is the same for all */	1234	/* adjust timers. this is easy, as the offset is the same for all */
1065	for (i = 0; i < timercnt; ++i)	1235	for (i = 0; i < timercnt; ++i)
1066	((WT)timers [i])->at += rt_now - mn_now;	1236	((WT)timers [i])->at += ev_rt_now - mn_now;
1067	}	1237	}
1068		1238
1069	mn_now = rt_now;	1239	mn_now = ev_rt_now;
1070	}	1240	}
1071	}	1241	}
1072		1242
1073	void	1243	void
1074	ev_ref (EV_P)	1244	ev_ref (EV_P)
…		…
1085	static int loop_done;	1255	static int loop_done;
1086		1256
1087	void	1257	void
1088	ev_loop (EV_P_ int flags)	1258	ev_loop (EV_P_ int flags)
1089	{	1259	{
1090	double block;
1091	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1260	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1261	? EVUNLOOP_ONE
		1262	: EVUNLOOP_CANCEL;
1092		1263
1093	do	1264	while (activecnt)
1094	{	1265	{
1095	/* queue check watchers (and execute them) */	1266	/* queue check watchers (and execute them) */
1096	if (expect_false (preparecnt))	1267	if (expect_false (preparecnt))
1097	{	1268	{
1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1105		1276
1106	/* update fd-related kernel structures */	1277	/* update fd-related kernel structures */
1107	fd_reify (EV_A);	1278	fd_reify (EV_A);
1108		1279
1109	/* calculate blocking time */	1280	/* calculate blocking time */
		1281	{
		1282	double block;
1110		1283
1111	/* we only need this for !monotonic clock or timers, but as we basically	1284	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1112	always have timers, we just calculate it always */	1285	block = 0.; /* do not block at all */
		1286	else
		1287	{
		1288	/* update time to cancel out callback processing overhead */
1113	#if EV_USE_MONOTONIC	1289	#if EV_USE_MONOTONIC
1114	if (expect_true (have_monotonic))	1290	if (expect_true (have_monotonic))
1115	time_update_monotonic (EV_A);	1291	time_update_monotonic (EV_A);
1116	else	1292	else
1117	#endif	1293	#endif
1118	{	1294	{
1119	rt_now = ev_time ();	1295	ev_rt_now = ev_time ();
1120	mn_now = rt_now;	1296	mn_now = ev_rt_now;
1121	}	1297	}
1122		1298
1123	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1124	block = 0.;
1125	else
1126	{
1127	block = MAX_BLOCKTIME;	1299	block = MAX_BLOCKTIME;
1128		1300
1129	if (timercnt)	1301	if (timercnt)
1130	{	1302	{
1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1303	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1132	if (block > to) block = to;	1304	if (block > to) block = to;
1133	}	1305	}
1134		1306
		1307	#if EV_PERIODICS
1135	if (periodiccnt)	1308	if (periodiccnt)
1136	{	1309	{
1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1310	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1138	if (block > to) block = to;	1311	if (block > to) block = to;
1139	}	1312	}
		1313	#endif
1140		1314
1141	if (block < 0.) block = 0.;	1315	if (expect_false (block < 0.)) block = 0.;
1142	}	1316	}
1143		1317
1144	method_poll (EV_A_ block);	1318	backend_poll (EV_A_ block);
		1319	}
1145		1320
1146	/* update rt_now, do magic */	1321	/* update ev_rt_now, do magic */
1147	time_update (EV_A);	1322	time_update (EV_A);
1148		1323
1149	/* queue pending timers and reschedule them */	1324	/* queue pending timers and reschedule them */
1150	timers_reify (EV_A); /* relative timers called last */	1325	timers_reify (EV_A); /* relative timers called last */
		1326	#if EV_PERIODICS
1151	periodics_reify (EV_A); /* absolute timers called first */	1327	periodics_reify (EV_A); /* absolute timers called first */
		1328	#endif
1152		1329
1153	/* queue idle watchers unless io or timers are pending */	1330	/* queue idle watchers unless other events are pending */
1154	if (idlecnt && !any_pending (EV_A))	1331	if (idlecnt && !any_pending (EV_A))
1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1332	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1156		1333
1157	/* queue check watchers, to be executed first */	1334	/* queue check watchers, to be executed first */
1158	if (checkcnt)	1335	if (expect_false (checkcnt))
1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1336	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1160		1337
1161	call_pending (EV_A);	1338	call_pending (EV_A);
1162	}
1163	while (activecnt && !loop_done);
1164		1339
1165	if (loop_done != 2)	1340	if (expect_false (loop_done))
1166	loop_done = 0;	1341	break;
		1342	}
		1343
		1344	if (loop_done == EVUNLOOP_ONE)
		1345	loop_done = EVUNLOOP_CANCEL;
1167	}	1346	}
1168		1347
1169	void	1348	void
1170	ev_unloop (EV_P_ int how)	1349	ev_unloop (EV_P_ int how)
1171	{	1350	{
…		…
1224	}	1403	}
1225		1404
1226	/*****************************************************************************/	1405	/*****************************************************************************/
1227		1406
1228	void	1407	void
1229	ev_io_start (EV_P_ struct ev_io *w)	1408	ev_io_start (EV_P_ ev_io *w)
1230	{	1409	{
1231	int fd = w->fd;	1410	int fd = w->fd;
1232		1411
1233	if (ev_is_active (w))	1412	if (expect_false (ev_is_active (w)))
1234	return;	1413	return;
1235		1414
1236	assert (("ev_io_start called with negative fd", fd >= 0));	1415	assert (("ev_io_start called with negative fd", fd >= 0));
1237		1416
1238	ev_start (EV_A_ (W)w, 1);	1417	ev_start (EV_A_ (W)w, 1);
…		…
1241		1420
1242	fd_change (EV_A_ fd);	1421	fd_change (EV_A_ fd);
1243	}	1422	}
1244		1423
1245	void	1424	void
1246	ev_io_stop (EV_P_ struct ev_io *w)	1425	ev_io_stop (EV_P_ ev_io *w)
1247	{	1426	{
1248	ev_clear_pending (EV_A_ (W)w);	1427	ev_clear_pending (EV_A_ (W)w);
1249	if (!ev_is_active (w))	1428	if (expect_false (!ev_is_active (w)))
1250	return;	1429	return;
		1430
		1431	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1251		1432
1252	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1433	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1253	ev_stop (EV_A_ (W)w);	1434	ev_stop (EV_A_ (W)w);
1254		1435
1255	fd_change (EV_A_ w->fd);	1436	fd_change (EV_A_ w->fd);
1256	}	1437	}
1257		1438
1258	void	1439	void
1259	ev_timer_start (EV_P_ struct ev_timer *w)	1440	ev_timer_start (EV_P_ ev_timer *w)
1260	{	1441	{
1261	if (ev_is_active (w))	1442	if (expect_false (ev_is_active (w)))
1262	return;	1443	return;
1263		1444
1264	((WT)w)->at += mn_now;	1445	((WT)w)->at += mn_now;
1265		1446
1266	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1447	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1267		1448
1268	ev_start (EV_A_ (W)w, ++timercnt);	1449	ev_start (EV_A_ (W)w, ++timercnt);
1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1450	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1270	timers [timercnt - 1] = w;	1451	timers [timercnt - 1] = w;
1271	upheap ((WT *)timers, timercnt - 1);	1452	upheap ((WT *)timers, timercnt - 1);
1272		1453
1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1274	}	1455	}
1275		1456
1276	void	1457	void
1277	ev_timer_stop (EV_P_ struct ev_timer *w)	1458	ev_timer_stop (EV_P_ ev_timer *w)
1278	{	1459	{
1279	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1280	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1281	return;	1462	return;
1282		1463
1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1464	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1284		1465
1285	if (((W)w)->active < timercnt--)	1466	if (expect_true (((W)w)->active < timercnt--))
1286	{	1467	{
1287	timers [((W)w)->active - 1] = timers [timercnt];	1468	timers [((W)w)->active - 1] = timers [timercnt];
1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1289	}	1470	}
1290		1471
1291	((WT)w)->at = w->repeat;	1472	((WT)w)->at -= mn_now;
1292		1473
1293	ev_stop (EV_A_ (W)w);	1474	ev_stop (EV_A_ (W)w);
1294	}	1475	}
1295		1476
1296	void	1477	void
1297	ev_timer_again (EV_P_ struct ev_timer *w)	1478	ev_timer_again (EV_P_ ev_timer *w)
1298	{	1479	{
1299	if (ev_is_active (w))	1480	if (ev_is_active (w))
1300	{	1481	{
1301	if (w->repeat)	1482	if (w->repeat)
1302	{	1483	{
1303	((WT)w)->at = mn_now + w->repeat;	1484	((WT)w)->at = mn_now + w->repeat;
1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1485	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1305	}	1486	}
1306	else	1487	else
1307	ev_timer_stop (EV_A_ w);	1488	ev_timer_stop (EV_A_ w);
1308	}	1489	}
1309	else if (w->repeat)	1490	else if (w->repeat)
		1491	{
		1492	w->at = w->repeat;
1310	ev_timer_start (EV_A_ w);	1493	ev_timer_start (EV_A_ w);
		1494	}
1311	}	1495	}
1312		1496
		1497	#if EV_PERIODICS
1313	void	1498	void
1314	ev_periodic_start (EV_P_ struct ev_periodic *w)	1499	ev_periodic_start (EV_P_ ev_periodic *w)
1315	{	1500	{
1316	if (ev_is_active (w))	1501	if (expect_false (ev_is_active (w)))
1317	return;	1502	return;
1318		1503
1319	if (w->reschedule_cb)	1504	if (w->reschedule_cb)
1320	((WT)w)->at = w->reschedule_cb (w, rt_now);	1505	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1321	else if (w->interval)	1506	else if (w->interval)
1322	{	1507	{
1323	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1508	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1324	/* this formula differs from the one in periodic_reify because we do not always round up */	1509	/* this formula differs from the one in periodic_reify because we do not always round up */
1325	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1510	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1326	}	1511	}
1327		1512
1328	ev_start (EV_A_ (W)w, ++periodiccnt);	1513	ev_start (EV_A_ (W)w, ++periodiccnt);
1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1514	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1330	periodics [periodiccnt - 1] = w;	1515	periodics [periodiccnt - 1] = w;
1331	upheap ((WT *)periodics, periodiccnt - 1);	1516	upheap ((WT *)periodics, periodiccnt - 1);
1332		1517
1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1334	}	1519	}
1335		1520
1336	void	1521	void
1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1522	ev_periodic_stop (EV_P_ ev_periodic *w)
1338	{	1523	{
1339	ev_clear_pending (EV_A_ (W)w);	1524	ev_clear_pending (EV_A_ (W)w);
1340	if (!ev_is_active (w))	1525	if (expect_false (!ev_is_active (w)))
1341	return;	1526	return;
1342		1527
1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1528	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1344		1529
1345	if (((W)w)->active < periodiccnt--)	1530	if (expect_true (((W)w)->active < periodiccnt--))
1346	{	1531	{
1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1532	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1533	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1349	}	1534	}
1350		1535
1351	ev_stop (EV_A_ (W)w);	1536	ev_stop (EV_A_ (W)w);
1352	}	1537	}
1353		1538
1354	void	1539	void
1355	ev_periodic_again (EV_P_ struct ev_periodic *w)	1540	ev_periodic_again (EV_P_ ev_periodic *w)
1356	{	1541	{
		1542	/* TODO: use adjustheap and recalculation */
1357	ev_periodic_stop (EV_A_ w);	1543	ev_periodic_stop (EV_A_ w);
1358	ev_periodic_start (EV_A_ w);	1544	ev_periodic_start (EV_A_ w);
1359	}	1545	}
		1546	#endif
1360		1547
1361	void	1548	void
1362	ev_idle_start (EV_P_ struct ev_idle *w)	1549	ev_idle_start (EV_P_ ev_idle *w)
1363	{	1550	{
1364	if (ev_is_active (w))	1551	if (expect_false (ev_is_active (w)))
1365	return;	1552	return;
1366		1553
1367	ev_start (EV_A_ (W)w, ++idlecnt);	1554	ev_start (EV_A_ (W)w, ++idlecnt);
1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1555	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1369	idles [idlecnt - 1] = w;	1556	idles [idlecnt - 1] = w;
1370	}	1557	}
1371		1558
1372	void	1559	void
1373	ev_idle_stop (EV_P_ struct ev_idle *w)	1560	ev_idle_stop (EV_P_ ev_idle *w)
1374	{	1561	{
1375	ev_clear_pending (EV_A_ (W)w);	1562	ev_clear_pending (EV_A_ (W)w);
1376	if (ev_is_active (w))	1563	if (expect_false (!ev_is_active (w)))
1377	return;	1564	return;
1378		1565
		1566	{
		1567	int active = ((W)w)->active;
1379	idles [((W)w)->active - 1] = idles [--idlecnt];	1568	idles [active - 1] = idles [--idlecnt];
		1569	((W)idles [active - 1])->active = active;
		1570	}
		1571
1380	ev_stop (EV_A_ (W)w);	1572	ev_stop (EV_A_ (W)w);
1381	}	1573	}
1382		1574
1383	void	1575	void
1384	ev_prepare_start (EV_P_ struct ev_prepare *w)	1576	ev_prepare_start (EV_P_ ev_prepare *w)
1385	{	1577	{
1386	if (ev_is_active (w))	1578	if (expect_false (ev_is_active (w)))
1387	return;	1579	return;
1388		1580
1389	ev_start (EV_A_ (W)w, ++preparecnt);	1581	ev_start (EV_A_ (W)w, ++preparecnt);
1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1582	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1391	prepares [preparecnt - 1] = w;	1583	prepares [preparecnt - 1] = w;
1392	}	1584	}
1393		1585
1394	void	1586	void
1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1587	ev_prepare_stop (EV_P_ ev_prepare *w)
1396	{	1588	{
1397	ev_clear_pending (EV_A_ (W)w);	1589	ev_clear_pending (EV_A_ (W)w);
1398	if (ev_is_active (w))	1590	if (expect_false (!ev_is_active (w)))
1399	return;	1591	return;
1400		1592
		1593	{
		1594	int active = ((W)w)->active;
1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1595	prepares [active - 1] = prepares [--preparecnt];
		1596	((W)prepares [active - 1])->active = active;
		1597	}
		1598
1402	ev_stop (EV_A_ (W)w);	1599	ev_stop (EV_A_ (W)w);
1403	}	1600	}
1404		1601
1405	void	1602	void
1406	ev_check_start (EV_P_ struct ev_check *w)	1603	ev_check_start (EV_P_ ev_check *w)
1407	{	1604	{
1408	if (ev_is_active (w))	1605	if (expect_false (ev_is_active (w)))
1409	return;	1606	return;
1410		1607
1411	ev_start (EV_A_ (W)w, ++checkcnt);	1608	ev_start (EV_A_ (W)w, ++checkcnt);
1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1609	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1413	checks [checkcnt - 1] = w;	1610	checks [checkcnt - 1] = w;
1414	}	1611	}
1415		1612
1416	void	1613	void
1417	ev_check_stop (EV_P_ struct ev_check *w)	1614	ev_check_stop (EV_P_ ev_check *w)
1418	{	1615	{
1419	ev_clear_pending (EV_A_ (W)w);	1616	ev_clear_pending (EV_A_ (W)w);
1420	if (ev_is_active (w))	1617	if (expect_false (!ev_is_active (w)))
1421	return;	1618	return;
1422		1619
		1620	{
		1621	int active = ((W)w)->active;
1423	checks [((W)w)->active - 1] = checks [--checkcnt];	1622	checks [active - 1] = checks [--checkcnt];
		1623	((W)checks [active - 1])->active = active;
		1624	}
		1625
1424	ev_stop (EV_A_ (W)w);	1626	ev_stop (EV_A_ (W)w);
1425	}	1627	}
1426		1628
1427	#ifndef SA_RESTART	1629	#ifndef SA_RESTART
1428	# define SA_RESTART 0	1630	# define SA_RESTART 0
1429	#endif	1631	#endif
1430		1632
1431	void	1633	void
1432	ev_signal_start (EV_P_ struct ev_signal *w)	1634	ev_signal_start (EV_P_ ev_signal *w)
1433	{	1635	{
1434	#if EV_MULTIPLICITY	1636	#if EV_MULTIPLICITY
1435	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1637	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1436	#endif	1638	#endif
1437	if (ev_is_active (w))	1639	if (expect_false (ev_is_active (w)))
1438	return;	1640	return;
1439		1641
1440	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1642	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1441		1643
1442	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1645	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1646	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1445		1647
1446	if (!((WL)w)->next)	1648	if (!((WL)w)->next)
1447	{	1649	{
1448	#if WIN32	1650	#if _WIN32
1449	signal (w->signum, sighandler);	1651	signal (w->signum, sighandler);
1450	#else	1652	#else
1451	struct sigaction sa;	1653	struct sigaction sa;
1452	sa.sa_handler = sighandler;	1654	sa.sa_handler = sighandler;
1453	sigfillset (&sa.sa_mask);	1655	sigfillset (&sa.sa_mask);
…		…
1456	#endif	1658	#endif
1457	}	1659	}
1458	}	1660	}
1459		1661
1460	void	1662	void
1461	ev_signal_stop (EV_P_ struct ev_signal *w)	1663	ev_signal_stop (EV_P_ ev_signal *w)
1462	{	1664	{
1463	ev_clear_pending (EV_A_ (W)w);	1665	ev_clear_pending (EV_A_ (W)w);
1464	if (!ev_is_active (w))	1666	if (expect_false (!ev_is_active (w)))
1465	return;	1667	return;
1466		1668
1467	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1669	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1468	ev_stop (EV_A_ (W)w);	1670	ev_stop (EV_A_ (W)w);
1469		1671
1470	if (!signals [w->signum - 1].head)	1672	if (!signals [w->signum - 1].head)
1471	signal (w->signum, SIG_DFL);	1673	signal (w->signum, SIG_DFL);
1472	}	1674	}
1473		1675
1474	void	1676	void
1475	ev_child_start (EV_P_ struct ev_child *w)	1677	ev_child_start (EV_P_ ev_child *w)
1476	{	1678	{
1477	#if EV_MULTIPLICITY	1679	#if EV_MULTIPLICITY
1478	assert (("child watchers are only supported in the default loop", loop == default_loop));	1680	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1479	#endif	1681	#endif
1480	if (ev_is_active (w))	1682	if (expect_false (ev_is_active (w)))
1481	return;	1683	return;
1482		1684
1483	ev_start (EV_A_ (W)w, 1);	1685	ev_start (EV_A_ (W)w, 1);
1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1686	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1485	}	1687	}
1486		1688
1487	void	1689	void
1488	ev_child_stop (EV_P_ struct ev_child *w)	1690	ev_child_stop (EV_P_ ev_child *w)
1489	{	1691	{
1490	ev_clear_pending (EV_A_ (W)w);	1692	ev_clear_pending (EV_A_ (W)w);
1491	if (ev_is_active (w))	1693	if (expect_false (!ev_is_active (w)))
1492	return;	1694	return;
1493		1695
1494	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1696	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1495	ev_stop (EV_A_ (W)w);	1697	ev_stop (EV_A_ (W)w);
1496	}	1698	}
1497		1699
		1700	#if EV_MULTIPLICITY
		1701	void
		1702	ev_embed_sweep (EV_P_ ev_embed *w)
		1703	{
		1704	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1705	}
		1706
		1707	static void
		1708	embed_cb (EV_P_ ev_io *io, int revents)
		1709	{
		1710	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
		1711
		1712	if (ev_cb (w))
		1713	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1714	else
		1715	ev_embed_sweep (loop, w);
		1716	}
		1717
		1718	void
		1719	ev_embed_start (EV_P_ ev_embed *w)
		1720	{
		1721	if (expect_false (ev_is_active (w)))
		1722	return;
		1723
		1724	{
		1725	struct ev_loop *loop = w->loop;
		1726	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1727	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1728	}
		1729
		1730	ev_set_priority (&w->io, ev_priority (w));
		1731	ev_io_start (EV_A_ &w->io);
		1732	ev_start (EV_A_ (W)w, 1);
		1733	}
		1734
		1735	void
		1736	ev_embed_stop (EV_P_ ev_embed *w)
		1737	{
		1738	ev_clear_pending (EV_A_ (W)w);
		1739	if (expect_false (!ev_is_active (w)))
		1740	return;
		1741
		1742	ev_io_stop (EV_A_ &w->io);
		1743	ev_stop (EV_A_ (W)w);
		1744	}
		1745	#endif
		1746
1498	/*****************************************************************************/	1747	/*****************************************************************************/
1499		1748
1500	struct ev_once	1749	struct ev_once
1501	{	1750	{
1502	struct ev_io io;	1751	ev_io io;
1503	struct ev_timer to;	1752	ev_timer to;
1504	void (cb)(int revents, void arg);	1753	void (cb)(int revents, void arg);
1505	void *arg;	1754	void *arg;
1506	};	1755	};
1507		1756
1508	static void	1757	static void
…		…
1517		1766
1518	cb (revents, arg);	1767	cb (revents, arg);
1519	}	1768	}
1520		1769
1521	static void	1770	static void
1522	once_cb_io (EV_P_ struct ev_io *w, int revents)	1771	once_cb_io (EV_P_ ev_io *w, int revents)
1523	{	1772	{
1524	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1773	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1525	}	1774	}
1526		1775
1527	static void	1776	static void
1528	once_cb_to (EV_P_ struct ev_timer *w, int revents)	1777	once_cb_to (EV_P_ ev_timer *w, int revents)
1529	{	1778	{
1530	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1779	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1531	}	1780	}
1532		1781
1533	void	1782	void
1534	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1783	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1535	{	1784	{
1536	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1785	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1537		1786
1538	if (!once)	1787	if (expect_false (!once))
		1788	{
1539	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1789	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1540	else	1790	return;
1541	{	1791	}
		1792
1542	once->cb = cb;	1793	once->cb = cb;
1543	once->arg = arg;	1794	once->arg = arg;
1544		1795
1545	ev_watcher_init (&once->io, once_cb_io);	1796	ev_init (&once->io, once_cb_io);
1546	if (fd >= 0)	1797	if (fd >= 0)
1547	{	1798	{
1548	ev_io_set (&once->io, fd, events);	1799	ev_io_set (&once->io, fd, events);
1549	ev_io_start (EV_A_ &once->io);	1800	ev_io_start (EV_A_ &once->io);
1550	}	1801	}
1551		1802
1552	ev_watcher_init (&once->to, once_cb_to);	1803	ev_init (&once->to, once_cb_to);
1553	if (timeout >= 0.)	1804	if (timeout >= 0.)
1554	{	1805	{
1555	ev_timer_set (&once->to, timeout, 0.);	1806	ev_timer_set (&once->to, timeout, 0.);
1556	ev_timer_start (EV_A_ &once->to);	1807	ev_timer_start (EV_A_ &once->to);
1557	}
1558	}	1808	}
1559	}	1809	}
1560		1810
		1811	#ifdef __cplusplus
		1812	}
		1813	#endif
		1814

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Comparing libev/ev.c (file contents): Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs. Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC vs.
Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC