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

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 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	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
		53	# endif
		54
		55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
		59	# endif
		60
		61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
		65	# endif
		66
		67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
		71	# endif
		72
		73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
		83	# endif
		84
33	#endif	85	#endif
34		86
35	#include <math.h>	87	#include <math.h>
36	#include <stdlib.h>	88	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	89	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	90	#include <stddef.h>
41		91
42	#include <stdio.h>	92	#include <stdio.h>
43		93
44	#include <assert.h>	94	#include <assert.h>
45	#include <errno.h>	95	#include <errno.h>
46	#include <sys/types.h>	96	#include <sys/types.h>
		97	#include <time.h>
		98
		99	#include <signal.h>
		100
47	#ifndef WIN32	101	#ifndef _WIN32
		102	# include <unistd.h>
		103	# include <sys/time.h>
48	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	110	# endif
50	#include <sys/time.h>	111	#endif
51	#include <time.h>
52		112
53	/**/	113	/**/
54		114
55	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
57	#endif	121	#endif
58		122
59	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
61	#endif	125	#endif
62		126
63	#ifndef EV_USEV_POLL	127	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
65	#endif	133	#endif
66		134
67	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
69	#endif	137	#endif
70		138
71	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
73	#endif	141	#endif
74		142
75	#ifndef EV_USE_REALTIME	143	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
77	#endif	145	#endif
78		146
79	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
80		154
81	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
84	#endif	158	#endif
…		…
86	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
89	#endif	163	#endif
90		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
91	/**/	169	/**/
92		170
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	172	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	173	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	174	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
97		175
98	#ifndef EV_EMBED	176	#ifdef EV_H
		177	# include EV_H
		178	#else
99	# include "ev.h"	179	# include "ev.h"
100	#endif	180	#endif
101		181
102	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
104	# define inline inline	184	# define inline static inline
105	#else	185	#else
106	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
107	# define inline static	187	# define inline static
108	#endif	188	#endif
109		189
…		…
111	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
112		192
113	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
116	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
117	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
119		202
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		204
		205	#ifdef _WIN32
		206	# include "ev_win32.c"
		207	#endif
		208
122	/*****************************************************************************/	209	/*****************************************************************************/
123		210
		211	static void (syserr_cb)(const char msg);
		212
		213	void ev_set_syserr_cb (void (cb)(const char msg))
		214	{
		215	syserr_cb = cb;
		216	}
		217
		218	static void
		219	syserr (const char *msg)
		220	{
		221	if (!msg)
		222	msg = "(libev) system error";
		223
		224	if (syserr_cb)
		225	syserr_cb (msg);
		226	else
		227	{
		228	perror (msg);
		229	abort ();
		230	}
		231	}
		232
		233	static void (alloc)(void *ptr, long size);
		234
		235	void ev_set_allocator (void (cb)(void *ptr, long size))
		236	{
		237	alloc = cb;
		238	}
		239
		240	static void *
		241	ev_realloc (void *ptr, long size)
		242	{
		243	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		244
		245	if (!ptr && size)
		246	{
		247	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		248	abort ();
		249	}
		250
		251	return ptr;
		252	}
		253
		254	#define ev_malloc(size) ev_realloc (0, (size))
		255	#define ev_free(ptr) ev_realloc ((ptr), 0)
		256
		257	/*****************************************************************************/
		258
124	typedef struct	259	typedef struct
125	{	260	{
126	struct ev_watcher_list *head;	261	WL head;
127	unsigned char events;	262	unsigned char events;
128	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
129	} ANFD;	267	} ANFD;
130		268
131	typedef struct	269	typedef struct
132	{	270	{
133	W w;	271	W w;
134	int events;	272	int events;
135	} ANPENDING;	273	} ANPENDING;
136		274
137	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
138		276
139	struct ev_loop	277	struct ev_loop
140	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	282	#include "ev_vars.h"
143	};
144	# undef VAR	283	#undef VAR
		284	};
145	# include "ev_wrap.h"	285	#include "ev_wrap.h"
		286
		287	static struct ev_loop default_loop_struct;
		288	struct ev_loop *ev_default_loop_ptr;
146		289
147	#else	290	#else
148		291
		292	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	294	#include "ev_vars.h"
151	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
152		298
153	#endif	299	#endif
154		300
155	/*****************************************************************************/	301	/*****************************************************************************/
156		302
157	inline ev_tstamp	303	ev_tstamp
158	ev_time (void)	304	ev_time (void)
159	{	305	{
160	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
161	struct timespec ts;	307	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	327	#endif
182		328
183	return ev_time ();	329	return ev_time ();
184	}	330	}
185		331
		332	#if EV_MULTIPLICITY
186	ev_tstamp	333	ev_tstamp
187	ev_now (EV_P)	334	ev_now (EV_P)
188	{	335	{
189	return rt_now;	336	return ev_rt_now;
190	}	337	}
		338	#endif
191		339
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
193		341
194	#define array_needsize(base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
196	{ \	344	{ \
197	int newcnt = cur; \	345	int newcnt = cur; \
198	do \	346	do \
199	{ \	347	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	348	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	349	} \
202	while ((cnt) > newcnt); \	350	while ((cnt) > newcnt); \
203	\	351	\
204	base = realloc (base, sizeof (base) (newcnt)); \	352	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	353	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	354	cur = newcnt; \
207	}	355	}
		356
		357	#define array_slim(type,stem) \
		358	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		359	{ \
		360	stem ## max = array_roundsize (stem ## cnt >> 1); \
		361	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		363	}
		364
		365	#define array_free(stem, idx) \
		366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		367
209	/*****************************************************************************/	368	/*****************************************************************************/
210		369
211	static void	370	static void
212	anfds_init (ANFD *base, int count)	371	anfds_init (ANFD *base, int count)
…		…
219		378
220	++base;	379	++base;
221	}	380	}
222	}	381	}
223		382
224	static void	383	void
225	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
226	{	385	{
227	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
228	{	389	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	391	return;
231	}	392	}
232		393
233	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	398	}
238		399
239	static void	400	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	402	{
242	int i;	403	int i;
243		404
244	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
246	}	407	}
247		408
248	static void	409	inline void
249	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
250	{	411	{
251	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	413	struct ev_io *w;
253		414
254	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	415	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	{	416	{
256	int ev = w->events & events;	417	int ev = w->events & revents;
257		418
258	if (ev)	419	if (ev)
259	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
260	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
261	}	428	}
262		429
263	/*****************************************************************************/	430	/*****************************************************************************/
264		431
265	static void	432	inline void
266	fd_reify (EV_P)	433	fd_reify (EV_P)
267	{	434	{
268	int i;	435	int i;
269		436
270	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
276	int events = 0;	443	int events = 0;
277		444
278	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	445	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
279	events \|= w->events;	446	events \|= w->events;
280		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
281	anfd->reify = 0;	457	anfd->reify = 0;
282		458
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	460	anfd->events = events;
287	}
288	}	461	}
289		462
290	fdchangecnt = 0;	463	fdchangecnt = 0;
291	}	464	}
292		465
293	static void	466	static void
294	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
295	{	468	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	469	if (expect_false (anfds [fd].reify))
297	return;	470	return;
298		471
299	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
300		473
301	++fdchangecnt;	474	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
303	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
304	}	477	}
305		478
306	static void	479	static void
307	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	482	struct ev_io *w;
310		483
311	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
312	{	485	{
313	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
315	}	488	}
		489	}
		490
		491	inline int
		492	fd_valid (int fd)
		493	{
		494	#ifdef _WIN32
		495	return _get_osfhandle (fd) != -1;
		496	#else
		497	return fcntl (fd, F_GETFD) != -1;
		498	#endif
316	}	499	}
317		500
318	/* called on EBADF to verify fds */	501	/* called on EBADF to verify fds */
319	static void	502	static void
320	fd_ebadf (EV_P)	503	fd_ebadf (EV_P)
321	{	504	{
322	int fd;	505	int fd;
323		506
324	for (fd = 0; fd < anfdmax; ++fd)	507	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	508	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	509	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	510	fd_kill (EV_A_ fd);
328	}	511	}
329		512
330	/* called on ENOMEM in select/poll to kill some fds and retry */	513	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	514	static void
332	fd_enomem (EV_P)	515	fd_enomem (EV_P)
333	{	516	{
334	int fd = anfdmax;	517	int fd;
335		518
336	while (fd--)	519	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	520	if (anfds [fd].events)
338	{	521	{
339	close (fd);
340	fd_kill (EV_A_ fd);	522	fd_kill (EV_A_ fd);
341	return;	523	return;
342	}	524	}
343	}	525	}
344		526
345	/* susually called after fork if method needs to re-arm all fds from scratch */	527	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	528	static void
347	fd_rearm_all (EV_P)	529	fd_rearm_all (EV_P)
348	{	530	{
349	int fd;	531	int fd;
350		532
351	/* this should be highly optimised to not do anything but set a flag */	533	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	534	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	535	if (anfds [fd].events)
354	{	536	{
355	anfds [fd].events = 0;	537	anfds [fd].events = 0;
356	fd_change (fd);	538	fd_change (EV_A_ fd);
357	}	539	}
358	}	540	}
359		541
360	/*****************************************************************************/	542	/*****************************************************************************/
361		543
…		…
365	WT w = heap [k];	547	WT w = heap [k];
366		548
367	while (k && heap [k >> 1]->at > w->at)	549	while (k && heap [k >> 1]->at > w->at)
368	{	550	{
369	heap [k] = heap [k >> 1];	551	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	552	((W)heap [k])->active = k + 1;
371	k >>= 1;	553	k >>= 1;
372	}	554	}
373		555
374	heap [k] = w;	556	heap [k] = w;
375	heap [k]->active = k + 1;	557	((W)heap [k])->active = k + 1;
376		558
377	}	559	}
378		560
379	static void	561	static void
380	downheap (WT *heap, int N, int k)	562	downheap (WT *heap, int N, int k)
…		…
390		572
391	if (w->at <= heap [j]->at)	573	if (w->at <= heap [j]->at)
392	break;	574	break;
393		575
394	heap [k] = heap [j];	576	heap [k] = heap [j];
395	heap [k]->active = k + 1;	577	((W)heap [k])->active = k + 1;
396	k = j;	578	k = j;
397	}	579	}
398		580
399	heap [k] = w;	581	heap [k] = w;
400	heap [k]->active = k + 1;	582	((W)heap [k])->active = k + 1;
		583	}
		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
401	}	590	}
402		591
403	/*****************************************************************************/	592	/*****************************************************************************/
404		593
405	typedef struct	594	typedef struct
406	{	595	{
407	struct ev_watcher_list *head;	596	WL head;
408	sig_atomic_t volatile gotsig;	597	sig_atomic_t volatile gotsig;
409	} ANSIG;	598	} ANSIG;
410		599
411	static ANSIG *signals;	600	static ANSIG *signals;
412	static int signalmax;	601	static int signalmax;
413		602
414	static int sigpipe [2];	603	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	604	static sig_atomic_t volatile gotsig;
		605	static struct ev_io sigev;
416		606
417	static void	607	static void
418	signals_init (ANSIG *base, int count)	608	signals_init (ANSIG *base, int count)
419	{	609	{
420	while (count--)	610	while (count--)
…		…
427	}	617	}
428		618
429	static void	619	static void
430	sighandler (int signum)	620	sighandler (int signum)
431	{	621	{
		622	#if _WIN32
		623	signal (signum, sighandler);
		624	#endif
		625
432	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
433		627
434	if (!gotsig)	628	if (!gotsig)
435	{	629	{
436	int old_errno = errno;	630	int old_errno = errno;
…		…
438	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
439	errno = old_errno;	633	errno = old_errno;
440	}	634	}
441	}	635	}
442		636
		637	void
		638	ev_feed_signal_event (EV_P_ int signum)
		639	{
		640	WL w;
		641
		642	#if EV_MULTIPLICITY
		643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		644	#endif
		645
		646	--signum;
		647
		648	if (signum < 0 \|\| signum >= signalmax)
		649	return;
		650
		651	signals [signum].gotsig = 0;
		652
		653	for (w = signals [signum].head; w; w = w->next)
		654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		655	}
		656
443	static void	657	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	659	{
446	struct ev_watcher_list *w;
447	int signum;	660	int signum;
448		661
449	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
450	gotsig = 0;	663	gotsig = 0;
451		664
452	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
454	{	667	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;	668	}
456		669
457	for (w = signals [signum].head; w; w = w->next)	670	static void
458	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
459	}	672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
460	}	680	}
461		681
462	static void	682	static void
463	siginit (EV_P)	683	siginit (EV_P)
464	{	684	{
465	#ifndef WIN32	685	fd_intern (sigpipe [0]);
466	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
467	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
468
469	/* rather than sort out wether we really need nb, set it */
470	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
471	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
472	#endif
473		687
474	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
475	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	691	}
478		692
479	/*****************************************************************************/	693	/*****************************************************************************/
480		694
		695	static struct ev_child *childs [PID_HASHSIZE];
		696
481	#ifndef WIN32	697	#ifndef _WIN32
		698
		699	static struct ev_signal childev;
482		700
483	#ifndef WCONTINUED	701	#ifndef WCONTINUED
484	# define WCONTINUED 0	702	# define WCONTINUED 0
485	#endif	703	#endif
486		704
…		…
490	struct ev_child *w;	708	struct ev_child *w;
491		709
492	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	710	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
493	if (w->pid == pid \|\| !w->pid)	711	if (w->pid == pid \|\| !w->pid)
494	{	712	{
495	w->priority = sw->priority; /* need to do it now */	713	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	714	w->rpid = pid;
497	w->rstatus = status;	715	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	717	}
500	}	718	}
501		719
502	static void	720	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	723	int pid, status;
506		724
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	726	{
509	/* make sure we are called again until all childs have been reaped */	727	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		729
512	child_reap (EV_A_ sw, pid, pid, status);	730	child_reap (EV_A_ sw, pid, pid, status);
513	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	732	}
515	}	733	}
516		734
517	#endif	735	#endif
518		736
519	/*****************************************************************************/	737	/*****************************************************************************/
520		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
521	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
522	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
523	#endif	744	#endif
524	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	746	# include "ev_epoll.c"
526	#endif	747	#endif
527	#if EV_USEV_POLL	748	#if EV_USE_POLL
528	# include "ev_poll.c"	749	# include "ev_poll.c"
529	#endif	750	#endif
530	#if EV_USE_SELECT	751	#if EV_USE_SELECT
531	# include "ev_select.c"	752	# include "ev_select.c"
532	#endif	753	#endif
…		…
545		766
546	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
547	static int	768	static int
548	enable_secure (void)	769	enable_secure (void)
549	{	770	{
550	#ifdef WIN32	771	#ifdef _WIN32
551	return 0;	772	return 0;
552	#else	773	#else
553	return getuid () != geteuid ()	774	return getuid () != geteuid ()
554	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
555	#endif	776	#endif
556	}	777	}
557		778
558	int	779	unsigned int
559	ev_method (EV_P)	780	ev_method (EV_P)
560	{	781	{
561	return method;	782	return method;
562	}	783	}
563		784
564	static void	785	static void
565	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
566	{	787	{
567	if (!method)	788	if (!method)
568	{	789	{
569	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
570	{	791	{
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	794	have_monotonic = 1;
574	}	795	}
575	#endif	796	#endif
576		797
577	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	799	mn_now = get_clock ();
579	now_floor = mn_now;	800	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
581		802
582	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
585	else	805
586	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
587		808
588	method = 0;	809	method = 0;
		810	#if EV_USE_PORT
		811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		812	#endif
589	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
591	#endif	815	#endif
592	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
594	#endif	818	#endif
595	#if EV_USEV_POLL	819	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
597	#endif	821	#endif
598	#if EV_USE_SELECT	822	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
600	#endif	824	#endif
601	}
602	}
603		825
604	void	826	ev_init (&sigev, sigcb);
		827	ev_set_priority (&sigev, EV_MAXPRI);
		828	}
		829	}
		830
		831	static void
605	loop_destroy (EV_P)	832	loop_destroy (EV_P)
606	{	833	{
		834	int i;
		835
		836	#if EV_USE_PORT
		837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		838	#endif
607	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	841	#endif
610	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	843	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	844	#endif
613	#if EV_USEV_POLL	845	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	846	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	847	#endif
616	#if EV_USE_SELECT	848	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	849	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	850	#endif
619		851
		852	for (i = NUMPRI; i--; )
		853	array_free (pending, [i]);
		854
		855	/* have to use the microsoft-never-gets-it-right macro */
		856	array_free (fdchange, EMPTY0);
		857	array_free (timer, EMPTY0);
		858	#if EV_PERIODICS
		859	array_free (periodic, EMPTY0);
		860	#endif
		861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
		864
620	method = 0;	865	method = 0;
621	/TODO/
622	}	866	}
623		867
624	void	868	static void
625	loop_fork (EV_P)	869	loop_fork (EV_P)
626	{	870	{
627	/TODO/	871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
628	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	879	#endif
631	#if EV_USE_KQUEUE	880
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	881	if (ev_is_active (&sigev))
633	#endif	882	{
		883	/* default loop */
		884
		885	ev_ref (EV_A);
		886	ev_io_stop (EV_A_ &sigev);
		887	close (sigpipe [0]);
		888	close (sigpipe [1]);
		889
		890	while (pipe (sigpipe))
		891	syserr ("(libev) error creating pipe");
		892
		893	siginit (EV_A);
		894	}
		895
		896	postfork = 0;
634	}	897	}
635		898
636	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
637	struct ev_loop *	900	struct ev_loop *
638	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
639	{	902	{
640	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	903	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
641		904
		905	memset (loop, 0, sizeof (struct ev_loop));
		906
642	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
643		908
644	if (ev_methods (EV_A))	909	if (ev_method (EV_A))
645	return loop;	910	return loop;
646		911
647	return 0;	912	return 0;
648	}	913	}
649		914
650	void	915	void
651	ev_loop_destroy (EV_P)	916	ev_loop_destroy (EV_P)
652	{	917	{
653	loop_destroy (EV_A);	918	loop_destroy (EV_A);
654	free (loop);	919	ev_free (loop);
655	}	920	}
656		921
657	void	922	void
658	ev_loop_fork (EV_P)	923	ev_loop_fork (EV_P)
659	{	924	{
660	loop_fork (EV_A);	925	postfork = 1;
661	}	926	}
662		927
663	#endif	928	#endif
664		929
665	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
670	#else	933	#else
671	static int default_loop;
672
673	int	934	int
		935	ev_default_loop (unsigned int flags)
674	#endif	936	#endif
675	ev_default_loop (int methods)
676	{	937	{
677	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
678	if (pipe (sigpipe))	939	if (pipe (sigpipe))
679	return 0;	940	return 0;
680		941
681	if (!default_loop)	942	if (!ev_default_loop_ptr)
682	{	943	{
683	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
684	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
685	#else	946	#else
686	default_loop = 1;	947	ev_default_loop_ptr = 1;
687	#endif	948	#endif
688		949
689	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
690		951
691	if (ev_method (EV_A))	952	if (ev_method (EV_A))
692	{	953	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	954	siginit (EV_A);
696		955
697	#ifndef WIN32	956	#ifndef _WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
700	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
701	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
702	#endif	961	#endif
703	}	962	}
704	else	963	else
705	default_loop = 0;	964	ev_default_loop_ptr = 0;
706	}	965	}
707		966
708	return default_loop;	967	return ev_default_loop_ptr;
709	}	968	}
710		969
711	void	970	void
712	ev_default_destroy (void)	971	ev_default_destroy (void)
713	{	972	{
714	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
716	#endif	975	#endif
717		976
		977	#ifndef _WIN32
718	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
		980	#endif
720		981
721	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	983	ev_io_stop (EV_A_ &sigev);
723		984
724	close (sigpipe [0]); sigpipe [0] = 0;	985	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		987
727	loop_destroy (EV_A);	988	loop_destroy (EV_A);
728	}	989	}
729		990
730	void	991	void
731	ev_default_fork (EV_P)	992	ev_default_fork (void)
732	{	993	{
733	loop_fork (EV_A);	994	#if EV_MULTIPLICITY
		995	struct ev_loop *loop = ev_default_loop_ptr;
		996	#endif
734		997
735	ev_io_stop (EV_A_ &sigev);	998	if (method)
736	close (sigpipe [0]);	999	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	1000	}
743		1001
744	/*****************************************************************************/	1002	/*****************************************************************************/
745		1003
746	static void	1004	static int
		1005	any_pending (EV_P)
		1006	{
		1007	int pri;
		1008
		1009	for (pri = NUMPRI; pri--; )
		1010	if (pendingcnt [pri])
		1011	return 1;
		1012
		1013	return 0;
		1014	}
		1015
		1016	inline void
747	call_pending (EV_P)	1017	call_pending (EV_P)
748	{	1018	{
749	int pri;	1019	int pri;
750		1020
751	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
752	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
753	{	1023	{
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		1025
756	if (p->w)	1026	if (expect_true (p->w))
757	{	1027	{
758	p->w->pending = 0;	1028	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
760	}	1030	}
761	}	1031	}
762	}	1032	}
763		1033
764	static void	1034	inline void
765	timers_reify (EV_P)	1035	timers_reify (EV_P)
766	{	1036	{
767	while (timercnt && timers [0]->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	1038	{
769	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
		1040
		1041	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		1042
771	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
772	if (w->repeat)	1044	if (w->repeat)
773	{	1045	{
774	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
775	w->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
776	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
777	}	1053	}
778	else	1054	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1056
781	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1058	}
783	}	1059	}
784		1060
785	static void	1061	#if EV_PERIODICS
		1062	inline void
786	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
787	{	1064	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1066	{
790	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
791		1068
		1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1070
792	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
793	if (w->interval)	1072	if (w->reschedule_cb)
794	{	1073	{
		1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1076	downheap ((WT *)periodics, periodiccnt, 0);
		1077	}
		1078	else if (w->interval)
		1079	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
796	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
797	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1083	}
799	else	1084	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1086
802	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1088	}
804	}	1089	}
805		1090
806	static void	1091	static void
807	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
813	{	1098	{
814	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
815		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1103	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
819
820	if (fabs (diff) >= 1e-4)
821	{
822	ev_periodic_stop (EV_A_ w);
823	ev_periodic_start (EV_A_ w);
824
825	i = 0; /* restart loop, inefficient, but time jumps should be rare */
826	}
827	}
828	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
829	}	1110	}
		1111	#endif
830		1112
831	inline int	1113	inline int
832	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
833	{	1115	{
834	mn_now = get_clock ();	1116	mn_now = get_clock ();
835		1117
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1119	{
838	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1121	return 0;
840	}	1122	}
841	else	1123	else
842	{	1124	{
843	now_floor = mn_now;	1125	now_floor = mn_now;
844	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
845	return 1;	1127	return 1;
846	}	1128	}
847	}	1129	}
848		1130
849	static void	1131	inline void
850	time_update (EV_P)	1132	time_update (EV_P)
851	{	1133	{
852	int i;	1134	int i;
853		1135
854	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
858	{	1140	{
859	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
860		1142
861	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
862	{	1144	{
863	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
864		1146
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1148	return; /* all is well */
867		1149
868	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1151	mn_now = get_clock ();
870	now_floor = mn_now;	1152	now_floor = mn_now;
871	}	1153	}
872		1154
		1155	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1160	}
877	}	1161	}
878	else	1162	else
879	#endif	1163	#endif
880	{	1164	{
881	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
882		1166
883	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884	{	1168	{
		1169	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
886		1172
887	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
888	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1176	}
891		1177
892	mn_now = rt_now;	1178	mn_now = ev_rt_now;
893	}	1179	}
894	}	1180	}
895		1181
896	void	1182	void
897	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
911	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
912	{	1198	{
913	double block;	1199	double block;
914	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
915		1201
916	do	1202	while (activecnt)
917	{	1203	{
918	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
919	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
920	{	1206	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1208	call_pending (EV_A);
923	}	1209	}
924		1210
		1211	/* we might have forked, so reify kernel state if necessary */
		1212	if (expect_false (postfork))
		1213	loop_fork (EV_A);
		1214
925	/* update fd-related kernel structures */	1215	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1216	fd_reify (EV_A);
927		1217
928	/* calculate blocking time */	1218	/* calculate blocking time */
929		1219
930	/* we only need this for !monotonic clockor timers, but as we basically	1220	/* we only need this for !monotonic clock or timers, but as we basically
931	always have timers, we just calculate it always */	1221	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1222	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
935	else	1225	else
936	#endif	1226	#endif
937	{	1227	{
938	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1229	mn_now = ev_rt_now;
940	}	1230	}
941		1231
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1233	block = 0.;
944	else	1234	else
945	{	1235	{
946	block = MAX_BLOCKTIME;	1236	block = MAX_BLOCKTIME;
947		1237
948	if (timercnt)	1238	if (timercnt)
949	{	1239	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1241	if (block > to) block = to;
952	}	1242	}
953		1243
		1244	#if EV_PERIODICS
954	if (periodiccnt)	1245	if (periodiccnt)
955	{	1246	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1248	if (block > to) block = to;
958	}	1249	}
		1250	#endif
959		1251
960	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
961	}	1253	}
962		1254
963	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
964		1256
965	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1258	time_update (EV_A);
967		1259
968	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
971		1265
972	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1267	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1269
976	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
977	if (checkcnt)	1271	if (expect_false (checkcnt))
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
979		1273
980	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
981	}	1278	}
982	while (activecnt && !loop_done);
983		1279
984	if (loop_done != 2)	1280	if (loop_done != 2)
985	loop_done = 0;	1281	loop_done = 0;
986	}	1282	}
987		1283
…		…
1047	void	1343	void
1048	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1049	{	1345	{
1050	int fd = w->fd;	1346	int fd = w->fd;
1051		1347
1052	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1053	return;	1349	return;
1054		1350
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1352
1057	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1356
1061	fd_change (EV_A_ fd);	1357	fd_change (EV_A_ fd);
1062	}	1358	}
1063		1359
1064	void	1360	void
1065	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1066	{	1362	{
1067	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1069	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1070		1368
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1073		1371
1074	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1075	}	1373	}
1076		1374
1077	void	1375	void
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1377	{
1080	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1081	return;	1379	return;
1082		1380
1083	w->at += mn_now;	1381	((WT)w)->at += mn_now;
1084		1382
1085	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086		1384
1087	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1089	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
		1389
		1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1391	}
1092		1392
1093	void	1393	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1395	{
1096	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1098	return;	1398	return;
1099		1399
		1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1401
1100	if (w->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1101	{	1403	{
1102	timers [w->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1406	}
1105		1407
1106	w->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1107		1409
1108	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1109	}	1411	}
1110		1412
1111	void	1413	void
…		…
1113	{	1415	{
1114	if (ev_is_active (w))	1416	if (ev_is_active (w))
1115	{	1417	{
1116	if (w->repeat)	1418	if (w->repeat)
1117	{	1419	{
1118	w->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1422	}
1121	else	1423	else
1122	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1123	}	1425	}
1124	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1125	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1126	}	1431	}
1127		1432
		1433	#if EV_PERIODICS
1128	void	1434	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1436	{
1131	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1132	return;	1438	return;
1133		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1135
1136	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1137	if (w->interval)
1138	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1139		1448
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1142	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
		1453
		1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1455	}
1145		1456
1146	void	1457	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1459	{
1149	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1151	return;	1462	return;
1152		1463
		1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1465
1153	if (w->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1154	{	1467	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1470	}
1158		1471
1159	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1160	}	1473	}
1161		1474
1162	void	1475	void
		1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1477	{
		1478	/* TODO: use adjustheap and recalculation */
		1479	ev_periodic_stop (EV_A_ w);
		1480	ev_periodic_start (EV_A_ w);
		1481	}
		1482	#endif
		1483
		1484	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1486	{
1165	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1166	return;	1488	return;
1167		1489
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1170	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1171	}	1493	}
1172		1494
1173	void	1495	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1497	{
1176	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1178	return;	1500	return;
1179		1501
1180	idles [w->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1182	}	1504	}
1183		1505
1184	void	1506	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1508	{
1187	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1188	return;	1510	return;
1189		1511
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1192	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1193	}	1515	}
1194		1516
1195	void	1517	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1519	{
1198	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1200	return;	1522	return;
1201		1523
1202	prepares [w->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1204	}	1526	}
1205		1527
1206	void	1528	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1530	{
1209	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1210	return;	1532	return;
1211		1533
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1214	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1215	}	1537	}
1216		1538
1217	void	1539	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1541	{
1220	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1222	return;	1544	return;
1223		1545
1224	checks [w->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1226	}	1548	}
1227		1549
1228	#ifndef SA_RESTART	1550	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1551	# define SA_RESTART 0
…		…
1231		1553
1232	void	1554	void
1233	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1234	{	1556	{
1235	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1236	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1237	#endif	1559	#endif
1238	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1239	return;	1561	return;
1240		1562
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1564
1243	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1568
1247	if (!w->next)	1569	if (!((WL)w)->next)
1248	{	1570	{
		1571	#if _WIN32
		1572	signal (w->signum, sighandler);
		1573	#else
1249	struct sigaction sa;	1574	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1577	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1578	sigaction (w->signum, &sa, 0);
		1579	#endif
1254	}	1580	}
1255	}	1581	}
1256		1582
1257	void	1583	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1259	{	1585	{
1260	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1261	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1262	return;	1588	return;
1263		1589
1264	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1265	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1266		1592
…		…
1270		1596
1271	void	1597	void
1272	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1273	{	1599	{
1274	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1275	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1276	#endif	1602	#endif
1277	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1278	return;	1604	return;
1279		1605
1280	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1281	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1282	}	1608	}
1283		1609
1284	void	1610	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1612	{
1287	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1289	return;	1615	return;
1290		1616
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1293	}	1619	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1634	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1635	void *arg = once->arg;
1310		1636
1311	ev_io_stop (EV_A_ &once->io);	1637	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1638	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1639	ev_free (once);
1314		1640
1315	cb (revents, arg);	1641	cb (revents, arg);
1316	}	1642	}
1317		1643
1318	static void	1644	static void
…		…
1328	}	1654	}
1329		1655
1330	void	1656	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1332	{	1658	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1659	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1660
1335	if (!once)	1661	if (expect_false (!once))
		1662	{
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1664	return;
1338	{	1665	}
		1666
1339	once->cb = cb;	1667	once->cb = cb;
1340	once->arg = arg;	1668	once->arg = arg;
1341		1669
1342	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1671	if (fd >= 0)
1344	{	1672	{
1345	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1347	}	1675	}
1348		1676
1349	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1678	if (timeout >= 0.)
1351	{	1679	{
1352	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1354	}
1355	}	1682	}
1356	}	1683	}
1357		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs. Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC