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

Comparing libev/ev.c (file contents):
Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs.
Revision 1.125 by root, Sat Nov 17 02:28:43 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
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	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
		66	# endif
		67
33	#endif	68	#endif
34		69
35	#include <math.h>	70	#include <math.h>
36	#include <stdlib.h>	71	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	72	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	73	#include <stddef.h>
41		74
42	#include <stdio.h>	75	#include <stdio.h>
43		76
44	#include <assert.h>	77	#include <assert.h>
45	#include <errno.h>	78	#include <errno.h>
46	#include <sys/types.h>	79	#include <sys/types.h>
		80	#include <time.h>
		81
		82	#include <signal.h>
		83
47	#ifndef WIN32	84	#ifndef _WIN32
		85	# include <unistd.h>
		86	# include <sys/time.h>
48	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	93	# endif
50	#include <sys/time.h>	94	#endif
51	#include <time.h>
52		95
53	/**/	96	/**/
54		97
55	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 0
		100	#endif
		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 0
57	#endif	104	#endif
58		105
59	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
61	#endif	108	#endif
62		109
63	#ifndef EV_USEV_POLL	110	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	111	# ifdef _WIN32
		112	# define EV_USE_POLL 0
		113	# else
		114	# define EV_USE_POLL 1
		115	# endif
65	#endif	116	#endif
66		117
67	#ifndef EV_USE_EPOLL	118	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	119	# define EV_USE_EPOLL 0
69	#endif	120	#endif
70		121
71	#ifndef EV_USE_KQUEUE	122	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	123	# define EV_USE_KQUEUE 0
73	#endif	124	#endif
74		125
75	#ifndef EV_USE_REALTIME	126	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	127	# define EV_USE_PORT 0
77	#endif	128	#endif
78		129
79	/**/	130	/**/
		131
		132	/* darwin simply cannot be helped */
		133	#ifdef __APPLE__
		134	# undef EV_USE_POLL
		135	# undef EV_USE_KQUEUE
		136	#endif
80		137
81	#ifndef CLOCK_MONOTONIC	138	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	139	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	140	# define EV_USE_MONOTONIC 0
84	#endif	141	#endif
…		…
86	#ifndef CLOCK_REALTIME	143	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	144	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	145	# define EV_USE_REALTIME 0
89	#endif	146	#endif
90		147
		148	#if EV_SELECT_IS_WINSOCKET
		149	# include <winsock.h>
		150	#endif
		151
91	/**/	152	/**/
92		153
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	154	#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) */	155	#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 */	156	#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 */	157	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
97		158
		159	#ifdef EV_H
		160	# include EV_H
		161	#else
98	#include "ev.h"	162	# include "ev.h"
		163	#endif
99		164
100	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	167	# define inline static inline
103	#else	168	#else
104	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
105	# define inline static	170	# define inline static
106	#endif	171	#endif
107		172
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
110		175
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
114	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
117		185
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		187
		188	#ifdef _WIN32
		189	# include "ev_win32.c"
		190	#endif
		191
120	/*****************************************************************************/	192	/*****************************************************************************/
121		193
		194	static void (syserr_cb)(const char msg);
		195
		196	void ev_set_syserr_cb (void (cb)(const char msg))
		197	{
		198	syserr_cb = cb;
		199	}
		200
		201	static void
		202	syserr (const char *msg)
		203	{
		204	if (!msg)
		205	msg = "(libev) system error";
		206
		207	if (syserr_cb)
		208	syserr_cb (msg);
		209	else
		210	{
		211	perror (msg);
		212	abort ();
		213	}
		214	}
		215
		216	static void (alloc)(void *ptr, long size);
		217
		218	void ev_set_allocator (void (cb)(void *ptr, long size))
		219	{
		220	alloc = cb;
		221	}
		222
		223	static void *
		224	ev_realloc (void *ptr, long size)
		225	{
		226	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		227
		228	if (!ptr && size)
		229	{
		230	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		231	abort ();
		232	}
		233
		234	return ptr;
		235	}
		236
		237	#define ev_malloc(size) ev_realloc (0, (size))
		238	#define ev_free(ptr) ev_realloc ((ptr), 0)
		239
		240	/*****************************************************************************/
		241
122	typedef struct	242	typedef struct
123	{	243	{
124	struct ev_watcher_list *head;	244	WL head;
125	unsigned char events;	245	unsigned char events;
126	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
127	} ANFD;	250	} ANFD;
128		251
129	typedef struct	252	typedef struct
130	{	253	{
131	W w;	254	W w;
132	int events;	255	int events;
133	} ANPENDING;	256	} ANPENDING;
134		257
135	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
136		259
137	struct ev_loop	260	struct ev_loop
138	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
139	# define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
140	# include "ev_vars.h"	265	#include "ev_vars.h"
141	};
142	# undef VAR	266	#undef VAR
		267	};
143	# include "ev_wrap.h"	268	#include "ev_wrap.h"
		269
		270	static struct ev_loop default_loop_struct;
		271	struct ev_loop *ev_default_loop_ptr;
144		272
145	#else	273	#else
146		274
		275	ev_tstamp ev_rt_now;
147	# define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
148	# include "ev_vars.h"	277	#include "ev_vars.h"
149	# undef VAR	278	#undef VAR
		279
		280	static int ev_default_loop_ptr;
150		281
151	#endif	282	#endif
152		283
153	/*****************************************************************************/	284	/*****************************************************************************/
154		285
155	inline ev_tstamp	286	ev_tstamp
156	ev_time (void)	287	ev_time (void)
157	{	288	{
158	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
159	struct timespec ts;	290	struct timespec ts;
160	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
179	#endif	310	#endif
180		311
181	return ev_time ();	312	return ev_time ();
182	}	313	}
183		314
		315	#if EV_MULTIPLICITY
184	ev_tstamp	316	ev_tstamp
185	ev_now (EV_P)	317	ev_now (EV_P)
186	{	318	{
187	return rt_now;	319	return ev_rt_now;
188	}	320	}
		321	#endif
189		322
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	323	#define array_roundsize(type,n) (((n) \| 4) & ~3)
191		324
192	#define array_needsize(base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
194	{ \	327	{ \
195	int newcnt = cur; \	328	int newcnt = cur; \
196	do \	329	do \
197	{ \	330	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	331	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	332	} \
200	while ((cnt) > newcnt); \	333	while ((cnt) > newcnt); \
201	\	334	\
202	base = realloc (base, sizeof (base) (newcnt)); \	335	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	336	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	337	cur = newcnt; \
205	}	338	}
		339
		340	#define array_slim(type,stem) \
		341	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		342	{ \
		343	stem ## max = array_roundsize (stem ## cnt >> 1); \
		344	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		346	}
		347
		348	#define array_free(stem, idx) \
		349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206		350
207	/*****************************************************************************/	351	/*****************************************************************************/
208		352
209	static void	353	static void
210	anfds_init (ANFD *base, int count)	354	anfds_init (ANFD *base, int count)
…		…
217		361
218	++base;	362	++base;
219	}	363	}
220	}	364	}
221		365
222	static void	366	void
223	event (EV_P_ W w, int events)	367	ev_feed_event (EV_P_ void *w, int revents)
224	{	368	{
225	if (w->pending)	369	W w_ = (W)w;
		370
		371	if (expect_false (w_->pending))
226	{	372	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	374	return;
229	}	375	}
230		376
231	w->pending = ++pendingcnt [ABSPRI (w)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	381	}
236		382
237	static void	383	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	384	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	385	{
240	int i;	386	int i;
241		387
242	for (i = 0; i < eventcnt; ++i)	388	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	389	ev_feed_event (EV_A_ events [i], type);
244	}	390	}
245		391
246	static void	392	inline void
247	fd_event (EV_P_ int fd, int events)	393	fd_event (EV_P_ int fd, int revents)
248	{	394	{
249	ANFD *anfd = anfds + fd;	395	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	396	struct ev_io *w;
251		397
252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	398	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
253	{	399	{
254	int ev = w->events & events;	400	int ev = w->events & revents;
255		401
256	if (ev)	402	if (ev)
257	event (EV_A_ (W)w, ev);	403	ev_feed_event (EV_A_ (W)w, ev);
258	}	404	}
		405	}
		406
		407	void
		408	ev_feed_fd_event (EV_P_ int fd, int revents)
		409	{
		410	fd_event (EV_A_ fd, revents);
259	}	411	}
260		412
261	/*****************************************************************************/	413	/*****************************************************************************/
262		414
263	static void	415	inline void
264	fd_reify (EV_P)	416	fd_reify (EV_P)
265	{	417	{
266	int i;	418	int i;
267		419
268	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
274	int events = 0;	426	int events = 0;
275		427
276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	428	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
277	events \|= w->events;	429	events \|= w->events;
278		430
		431	#if EV_SELECT_IS_WINSOCKET
		432	if (events)
		433	{
		434	unsigned long argp;
		435	anfd->handle = _get_osfhandle (fd);
		436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		437	}
		438	#endif
		439
279	anfd->reify = 0;	440	anfd->reify = 0;
280		441
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	443	anfd->events = events;
285	}
286	}	444	}
287		445
288	fdchangecnt = 0;	446	fdchangecnt = 0;
289	}	447	}
290		448
291	static void	449	static void
292	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
293	{	451	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	452	if (expect_false (anfds [fd].reify))
295	return;	453	return;
296		454
297	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
298		456
299	++fdchangecnt;	457	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
301	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
302	}	460	}
303		461
304	static void	462	static void
305	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	465	struct ev_io *w;
308		466
309	while ((w = (struct ev_io *)anfds [fd].head))	467	while ((w = (struct ev_io *)anfds [fd].head))
310	{	468	{
311	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	470	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
313	}	471	}
		472	}
		473
		474	inline int
		475	fd_valid (int fd)
		476	{
		477	#ifdef _WIN32
		478	return _get_osfhandle (fd) != -1;
		479	#else
		480	return fcntl (fd, F_GETFD) != -1;
		481	#endif
314	}	482	}
315		483
316	/* called on EBADF to verify fds */	484	/* called on EBADF to verify fds */
317	static void	485	static void
318	fd_ebadf (EV_P)	486	fd_ebadf (EV_P)
319	{	487	{
320	int fd;	488	int fd;
321		489
322	for (fd = 0; fd < anfdmax; ++fd)	490	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	491	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	492	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	493	fd_kill (EV_A_ fd);
326	}	494	}
327		495
328	/* called on ENOMEM in select/poll to kill some fds and retry */	496	/* called on ENOMEM in select/poll to kill some fds and retry */
329	static void	497	static void
330	fd_enomem (EV_P)	498	fd_enomem (EV_P)
331	{	499	{
332	int fd = anfdmax;	500	int fd;
333		501
334	while (fd--)	502	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	503	if (anfds [fd].events)
336	{	504	{
337	close (fd);
338	fd_kill (EV_A_ fd);	505	fd_kill (EV_A_ fd);
339	return;	506	return;
340	}	507	}
341	}	508	}
342		509
343	/* susually called after fork if method needs to re-arm all fds from scratch */	510	/* usually called after fork if method needs to re-arm all fds from scratch */
344	static void	511	static void
345	fd_rearm_all (EV_P)	512	fd_rearm_all (EV_P)
346	{	513	{
347	int fd;	514	int fd;
348		515
349	/* this should be highly optimised to not do anything but set a flag */	516	/* this should be highly optimised to not do anything but set a flag */
350	for (fd = 0; fd < anfdmax; ++fd)	517	for (fd = 0; fd < anfdmax; ++fd)
351	if (anfds [fd].events)	518	if (anfds [fd].events)
352	{	519	{
353	anfds [fd].events = 0;	520	anfds [fd].events = 0;
354	fd_change (fd);	521	fd_change (EV_A_ fd);
355	}	522	}
356	}	523	}
357		524
358	/*****************************************************************************/	525	/*****************************************************************************/
359		526
…		…
363	WT w = heap [k];	530	WT w = heap [k];
364		531
365	while (k && heap [k >> 1]->at > w->at)	532	while (k && heap [k >> 1]->at > w->at)
366	{	533	{
367	heap [k] = heap [k >> 1];	534	heap [k] = heap [k >> 1];
368	heap [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
369	k >>= 1;	536	k >>= 1;
370	}	537	}
371		538
372	heap [k] = w;	539	heap [k] = w;
373	heap [k]->active = k + 1;	540	((W)heap [k])->active = k + 1;
374		541
375	}	542	}
376		543
377	static void	544	static void
378	downheap (WT *heap, int N, int k)	545	downheap (WT *heap, int N, int k)
…		…
388		555
389	if (w->at <= heap [j]->at)	556	if (w->at <= heap [j]->at)
390	break;	557	break;
391		558
392	heap [k] = heap [j];	559	heap [k] = heap [j];
393	heap [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
394	k = j;	561	k = j;
395	}	562	}
396		563
397	heap [k] = w;	564	heap [k] = w;
398	heap [k]->active = k + 1;	565	((W)heap [k])->active = k + 1;
		566	}
		567
		568	inline void
		569	adjustheap (WT *heap, int N, int k)
		570	{
		571	upheap (heap, k);
		572	downheap (heap, N, k);
399	}	573	}
400		574
401	/*****************************************************************************/	575	/*****************************************************************************/
402		576
403	typedef struct	577	typedef struct
404	{	578	{
405	struct ev_watcher_list *head;	579	WL head;
406	sig_atomic_t volatile gotsig;	580	sig_atomic_t volatile gotsig;
407	} ANSIG;	581	} ANSIG;
408		582
409	static ANSIG *signals;	583	static ANSIG *signals;
410	static int signalmax;	584	static int signalmax;
411		585
412	static int sigpipe [2];	586	static int sigpipe [2];
413	static sig_atomic_t volatile gotsig;	587	static sig_atomic_t volatile gotsig;
		588	static struct ev_io sigev;
414		589
415	static void	590	static void
416	signals_init (ANSIG *base, int count)	591	signals_init (ANSIG *base, int count)
417	{	592	{
418	while (count--)	593	while (count--)
…		…
425	}	600	}
426		601
427	static void	602	static void
428	sighandler (int signum)	603	sighandler (int signum)
429	{	604	{
		605	#if _WIN32
		606	signal (signum, sighandler);
		607	#endif
		608
430	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
431		610
432	if (!gotsig)	611	if (!gotsig)
433	{	612	{
434	int old_errno = errno;	613	int old_errno = errno;
…		…
436	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
437	errno = old_errno;	616	errno = old_errno;
438	}	617	}
439	}	618	}
440		619
		620	void
		621	ev_feed_signal_event (EV_P_ int signum)
		622	{
		623	WL w;
		624
		625	#if EV_MULTIPLICITY
		626	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		627	#endif
		628
		629	--signum;
		630
		631	if (signum < 0 \|\| signum >= signalmax)
		632	return;
		633
		634	signals [signum].gotsig = 0;
		635
		636	for (w = signals [signum].head; w; w = w->next)
		637	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		638	}
		639
441	static void	640	static void
442	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
443	{	642	{
444	struct ev_watcher_list *w;
445	int signum;	643	int signum;
446		644
447	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
448	gotsig = 0;	646	gotsig = 0;
449		647
450	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
451	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
452	{	650	ev_feed_signal_event (EV_A_ signum + 1);
453	signals [signum].gotsig = 0;	651	}
454		652
455	for (w = signals [signum].head; w; w = w->next)	653	static void
456	event (EV_A_ (W)w, EV_SIGNAL);	654	fd_intern (int fd)
457	}	655	{
		656	#ifdef _WIN32
		657	int arg = 1;
		658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		659	#else
		660	fcntl (fd, F_SETFD, FD_CLOEXEC);
		661	fcntl (fd, F_SETFL, O_NONBLOCK);
		662	#endif
458	}	663	}
459		664
460	static void	665	static void
461	siginit (EV_P)	666	siginit (EV_P)
462	{	667	{
463	#ifndef WIN32	668	fd_intern (sigpipe [0]);
464	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	fd_intern (sigpipe [1]);
465	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
466
467	/* rather than sort out wether we really need nb, set it */
468	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
469	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
470	#endif
471		670
472	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
473	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
474	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
475	}	674	}
476		675
477	/*****************************************************************************/	676	/*****************************************************************************/
478		677
		678	static struct ev_child *childs [PID_HASHSIZE];
		679
479	#ifndef WIN32	680	#ifndef _WIN32
		681
		682	static struct ev_signal childev;
480		683
481	#ifndef WCONTINUED	684	#ifndef WCONTINUED
482	# define WCONTINUED 0	685	# define WCONTINUED 0
483	#endif	686	#endif
484		687
…		…
488	struct ev_child *w;	691	struct ev_child *w;
489		692
490	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	693	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
491	if (w->pid == pid \|\| !w->pid)	694	if (w->pid == pid \|\| !w->pid)
492	{	695	{
493	w->priority = sw->priority; /* need to do it now */	696	ev_priority (w) = ev_priority (sw); /* need to do it now */
494	w->rpid = pid;	697	w->rpid = pid;
495	w->rstatus = status;	698	w->rstatus = status;
496	event (EV_A_ (W)w, EV_CHILD);	699	ev_feed_event (EV_A_ (W)w, EV_CHILD);
497	}	700	}
498	}	701	}
499		702
500	static void	703	static void
501	childcb (EV_P_ struct ev_signal *sw, int revents)	704	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
503	int pid, status;	706	int pid, status;
504		707
505	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	708	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
506	{	709	{
507	/* make sure we are called again until all childs have been reaped */	710	/* make sure we are called again until all childs have been reaped */
508	event (EV_A_ (W)sw, EV_SIGNAL);	711	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
509		712
510	child_reap (EV_A_ sw, pid, pid, status);	713	child_reap (EV_A_ sw, pid, pid, status);
511	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	714	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
512	}	715	}
513	}	716	}
514		717
515	#endif	718	#endif
516		719
517	/*****************************************************************************/	720	/*****************************************************************************/
518		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
519	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
520	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
521	#endif	727	#endif
522	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
523	# include "ev_epoll.c"	729	# include "ev_epoll.c"
524	#endif	730	#endif
525	#if EV_USEV_POLL	731	#if EV_USE_POLL
526	# include "ev_poll.c"	732	# include "ev_poll.c"
527	#endif	733	#endif
528	#if EV_USE_SELECT	734	#if EV_USE_SELECT
529	# include "ev_select.c"	735	# include "ev_select.c"
530	#endif	736	#endif
…		…
543		749
544	/* return true if we are running with elevated privileges and should ignore env variables */	750	/* return true if we are running with elevated privileges and should ignore env variables */
545	static int	751	static int
546	enable_secure (void)	752	enable_secure (void)
547	{	753	{
548	#ifdef WIN32	754	#ifdef _WIN32
549	return 0;	755	return 0;
550	#else	756	#else
551	return getuid () != geteuid ()	757	return getuid () != geteuid ()
552	\|\| getgid () != getegid ();	758	\|\| getgid () != getegid ();
553	#endif	759	#endif
554	}	760	}
555		761
556	int	762	unsigned int
557	ev_method (EV_P)	763	ev_method (EV_P)
558	{	764	{
559	return method;	765	return method;
560	}	766	}
561		767
562	static void	768	static void
563	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
564	{	770	{
565	if (!method)	771	if (!method)
566	{	772	{
567	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
568	{	774	{
…		…
570	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
571	have_monotonic = 1;	777	have_monotonic = 1;
572	}	778	}
573	#endif	779	#endif
574		780
575	rt_now = ev_time ();	781	ev_rt_now = ev_time ();
576	mn_now = get_clock ();	782	mn_now = get_clock ();
577	now_floor = mn_now;	783	now_floor = mn_now;
578	rtmn_diff = rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
579		785
580	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
581	if (!enable_secure () && getenv ("LIBEV_METHODS"))
582	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
583	else	788
584	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags \|= 0x0000ffff;
585		791
586	method = 0;	792	method = 0;
		793	#if EV_USE_PORT
		794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		795	#endif
587	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
588	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
589	#endif	798	#endif
590	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
591	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
592	#endif	801	#endif
593	#if EV_USEV_POLL	802	#if EV_USE_POLL
594	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
595	#endif	804	#endif
596	#if EV_USE_SELECT	805	#if EV_USE_SELECT
597	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
598	#endif	807	#endif
599	}
600	}
601		808
602	void	809	ev_init (&sigev, sigcb);
		810	ev_set_priority (&sigev, EV_MAXPRI);
		811	}
		812	}
		813
		814	static void
603	loop_destroy (EV_P)	815	loop_destroy (EV_P)
604	{	816	{
		817	int i;
		818
		819	#if EV_USE_PORT
		820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		821	#endif
605	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
606	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
607	#endif	824	#endif
608	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
609	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	826	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
610	#endif	827	#endif
611	#if EV_USEV_POLL	828	#if EV_USE_POLL
612	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	829	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
613	#endif	830	#endif
614	#if EV_USE_SELECT	831	#if EV_USE_SELECT
615	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	832	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
616	#endif	833	#endif
617		834
		835	for (i = NUMPRI; i--; )
		836	array_free (pending, [i]);
		837
		838	/* have to use the microsoft-never-gets-it-right macro */
		839	array_free (fdchange, EMPTY0);
		840	array_free (timer, EMPTY0);
		841	#if EV_PERIODICS
		842	array_free (periodic, EMPTY0);
		843	#endif
		844	array_free (idle, EMPTY0);
		845	array_free (prepare, EMPTY0);
		846	array_free (check, EMPTY0);
		847
618	method = 0;	848	method = 0;
619	/TODO/
620	}	849	}
621		850
622	void	851	static void
623	loop_fork (EV_P)	852	loop_fork (EV_P)
624	{	853	{
625	/TODO/	854	#if EV_USE_PORT
		855	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		856	#endif
		857	#if EV_USE_KQUEUE
		858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		859	#endif
626	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
627	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
628	#endif	862	#endif
629	#if EV_USE_KQUEUE	863
630	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	864	if (ev_is_active (&sigev))
631	#endif	865	{
		866	/* default loop */
		867
		868	ev_ref (EV_A);
		869	ev_io_stop (EV_A_ &sigev);
		870	close (sigpipe [0]);
		871	close (sigpipe [1]);
		872
		873	while (pipe (sigpipe))
		874	syserr ("(libev) error creating pipe");
		875
		876	siginit (EV_A);
		877	}
		878
		879	postfork = 0;
632	}	880	}
633		881
634	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
635	struct ev_loop *	883	struct ev_loop *
636	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
637	{	885	{
638	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	886	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
639		887
		888	memset (loop, 0, sizeof (struct ev_loop));
		889
640	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
641		891
642	if (ev_methods (EV_A))	892	if (ev_method (EV_A))
643	return loop;	893	return loop;
644		894
645	return 0;	895	return 0;
646	}	896	}
647		897
648	void	898	void
649	ev_loop_destroy (EV_P)	899	ev_loop_destroy (EV_P)
650	{	900	{
651	loop_destroy (EV_A);	901	loop_destroy (EV_A);
652	free (loop);	902	ev_free (loop);
653	}	903	}
654		904
655	void	905	void
656	ev_loop_fork (EV_P)	906	ev_loop_fork (EV_P)
657	{	907	{
658	loop_fork (EV_A);	908	postfork = 1;
659	}	909	}
660		910
661	#endif	911	#endif
662		912
663	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
664	struct ev_loop default_loop_struct;
665	static struct ev_loop *default_loop;
666
667	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_init (unsigned int flags)
668	#else	916	#else
669	static int default_loop;
670
671	int	917	int
		918	ev_default_loop (unsigned int flags)
672	#endif	919	#endif
673	ev_default_loop (int methods)
674	{	920	{
675	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
676	if (pipe (sigpipe))	922	if (pipe (sigpipe))
677	return 0;	923	return 0;
678		924
679	if (!default_loop)	925	if (!ev_default_loop_ptr)
680	{	926	{
681	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
682	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
683	#else	929	#else
684	default_loop = 1;	930	ev_default_loop_ptr = 1;
685	#endif	931	#endif
686		932
687	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
688		934
689	if (ev_method (EV_A))	935	if (ev_method (EV_A))
690	{	936	{
691	ev_watcher_init (&sigev, sigcb);
692	ev_set_priority (&sigev, EV_MAXPRI);
693	siginit (EV_A);	937	siginit (EV_A);
694		938
695	#ifndef WIN32	939	#ifndef _WIN32
696	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
697	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
698	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
699	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
700	#endif	944	#endif
701	}	945	}
702	else	946	else
703	default_loop = 0;	947	ev_default_loop_ptr = 0;
704	}	948	}
705		949
706	return default_loop;	950	return ev_default_loop_ptr;
707	}	951	}
708		952
709	void	953	void
710	ev_default_destroy (void)	954	ev_default_destroy (void)
711	{	955	{
712	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
713	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
714	#endif	958	#endif
715		959
		960	#ifndef _WIN32
716	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
717	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
		963	#endif
718		964
719	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
720	ev_io_stop (EV_A_ &sigev);	966	ev_io_stop (EV_A_ &sigev);
721		967
722	close (sigpipe [0]); sigpipe [0] = 0;	968	close (sigpipe [0]); sigpipe [0] = 0;
…		…
724		970
725	loop_destroy (EV_A);	971	loop_destroy (EV_A);
726	}	972	}
727		973
728	void	974	void
729	ev_default_fork (EV_P)	975	ev_default_fork (void)
730	{	976	{
731	loop_fork (EV_A);	977	#if EV_MULTIPLICITY
		978	struct ev_loop *loop = ev_default_loop_ptr;
		979	#endif
732		980
733	ev_io_stop (EV_A_ &sigev);	981	if (method)
734	close (sigpipe [0]);	982	postfork = 1;
735	close (sigpipe [1]);
736	pipe (sigpipe);
737
738	ev_ref (EV_A); /* signal watcher */
739	siginit (EV_A);
740	}	983	}
741		984
742	/*****************************************************************************/	985	/*****************************************************************************/
743		986
744	static void	987	static int
		988	any_pending (EV_P)
		989	{
		990	int pri;
		991
		992	for (pri = NUMPRI; pri--; )
		993	if (pendingcnt [pri])
		994	return 1;
		995
		996	return 0;
		997	}
		998
		999	inline void
745	call_pending (EV_P)	1000	call_pending (EV_P)
746	{	1001	{
747	int pri;	1002	int pri;
748		1003
749	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
750	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
751	{	1006	{
752	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
753		1008
754	if (p->w)	1009	if (expect_true (p->w))
755	{	1010	{
756	p->w->pending = 0;	1011	p->w->pending = 0;
757	p->w->cb (EV_A_ p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
758	}	1013	}
759	}	1014	}
760	}	1015	}
761		1016
762	static void	1017	inline void
763	timers_reify (EV_P)	1018	timers_reify (EV_P)
764	{	1019	{
765	while (timercnt && timers [0]->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
766	{	1021	{
767	struct ev_timer *w = timers [0];	1022	struct ev_timer *w = timers [0];
		1023
		1024	assert (("inactive timer on timer heap detected", ev_is_active (w)));
768		1025
769	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
770	if (w->repeat)	1027	if (w->repeat)
771	{	1028	{
772	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1030
773	w->at = mn_now + w->repeat;	1031	((WT)w)->at += w->repeat;
		1032	if (((WT)w)->at < mn_now)
		1033	((WT)w)->at = mn_now;
		1034
774	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
775	}	1036	}
776	else	1037	else
777	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
778		1039
779	event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
780	}	1041	}
781	}	1042	}
782		1043
783	static void	1044	#if EV_PERIODICS
		1045	inline void
784	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
785	{	1047	{
786	while (periodiccnt && periodics [0]->at <= rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
787	{	1049	{
788	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
789		1051
		1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1053
790	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
791	if (w->interval)	1055	if (w->reschedule_cb)
792	{	1056	{
		1057	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1059	downheap ((WT *)periodics, periodiccnt, 0);
		1060	}
		1061	else if (w->interval)
		1062	{
793	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1063	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
794	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1064	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
795	downheap ((WT *)periodics, periodiccnt, 0);	1065	downheap ((WT *)periodics, periodiccnt, 0);
796	}	1066	}
797	else	1067	else
798	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
799		1069
800	event (EV_A_ (W)w, EV_PERIODIC);	1070	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
801	}	1071	}
802	}	1072	}
803		1073
804	static void	1074	static void
805	periodics_reschedule (EV_P)	1075	periodics_reschedule (EV_P)
…		…
809	/* adjust periodics after time jump */	1079	/* adjust periodics after time jump */
810	for (i = 0; i < periodiccnt; ++i)	1080	for (i = 0; i < periodiccnt; ++i)
811	{	1081	{
812	struct ev_periodic *w = periodics [i];	1082	struct ev_periodic *w = periodics [i];
813		1083
		1084	if (w->reschedule_cb)
		1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
814	if (w->interval)	1086	else if (w->interval)
815	{
816	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1087	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
817
818	if (fabs (diff) >= 1e-4)
819	{
820	ev_periodic_stop (EV_A_ w);
821	ev_periodic_start (EV_A_ w);
822
823	i = 0; /* restart loop, inefficient, but time jumps should be rare */
824	}
825	}
826	}	1088	}
		1089
		1090	/* now rebuild the heap */
		1091	for (i = periodiccnt >> 1; i--; )
		1092	downheap ((WT *)periodics, periodiccnt, i);
827	}	1093	}
		1094	#endif
828		1095
829	inline int	1096	inline int
830	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
831	{	1098	{
832	mn_now = get_clock ();	1099	mn_now = get_clock ();
833		1100
834	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
835	{	1102	{
836	rt_now = rtmn_diff + mn_now;	1103	ev_rt_now = rtmn_diff + mn_now;
837	return 0;	1104	return 0;
838	}	1105	}
839	else	1106	else
840	{	1107	{
841	now_floor = mn_now;	1108	now_floor = mn_now;
842	rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
843	return 1;	1110	return 1;
844	}	1111	}
845	}	1112	}
846		1113
847	static void	1114	inline void
848	time_update (EV_P)	1115	time_update (EV_P)
849	{	1116	{
850	int i;	1117	int i;
851		1118
852	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
856	{	1123	{
857	ev_tstamp odiff = rtmn_diff;	1124	ev_tstamp odiff = rtmn_diff;
858		1125
859	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1126	for (i = 4; --i; ) /* loop a few times, before making important decisions */
860	{	1127	{
861	rtmn_diff = rt_now - mn_now;	1128	rtmn_diff = ev_rt_now - mn_now;
862		1129
863	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
864	return; /* all is well */	1131	return; /* all is well */
865		1132
866	rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
867	mn_now = get_clock ();	1134	mn_now = get_clock ();
868	now_floor = mn_now;	1135	now_floor = mn_now;
869	}	1136	}
870		1137
		1138	# if EV_PERIODICS
871	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
872	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
873	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
874	}	1143	}
875	}	1144	}
876	else	1145	else
877	#endif	1146	#endif
878	{	1147	{
879	rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
880		1149
881	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1150	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
882	{	1151	{
		1152	#if EV_PERIODICS
883	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
884		1155
885	/* adjust timers. this is easy, as the offset is the same for all */	1156	/* adjust timers. this is easy, as the offset is the same for all */
886	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
887	timers [i]->at += rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
888	}	1159	}
889		1160
890	mn_now = rt_now;	1161	mn_now = ev_rt_now;
891	}	1162	}
892	}	1163	}
893		1164
894	void	1165	void
895	ev_ref (EV_P)	1166	ev_ref (EV_P)
…		…
909	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
910	{	1181	{
911	double block;	1182	double block;
912	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
913		1184
914	do	1185	while (activecnt)
915	{	1186	{
916	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
917	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
918	{	1189	{
919	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
920	call_pending (EV_A);	1191	call_pending (EV_A);
921	}	1192	}
922		1193
		1194	/* we might have forked, so reify kernel state if necessary */
		1195	if (expect_false (postfork))
		1196	loop_fork (EV_A);
		1197
923	/* update fd-related kernel structures */	1198	/* update fd-related kernel structures */
924	fd_reify (EV_A);	1199	fd_reify (EV_A);
925		1200
926	/* calculate blocking time */	1201	/* calculate blocking time */
927		1202
928	/* we only need this for !monotonic clockor timers, but as we basically	1203	/* we only need this for !monotonic clock or timers, but as we basically
929	always have timers, we just calculate it always */	1204	always have timers, we just calculate it always */
930	#if EV_USE_MONOTONIC	1205	#if EV_USE_MONOTONIC
931	if (expect_true (have_monotonic))	1206	if (expect_true (have_monotonic))
932	time_update_monotonic (EV_A);	1207	time_update_monotonic (EV_A);
933	else	1208	else
934	#endif	1209	#endif
935	{	1210	{
936	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
937	mn_now = rt_now;	1212	mn_now = ev_rt_now;
938	}	1213	}
939		1214
940	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1215	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
941	block = 0.;	1216	block = 0.;
942	else	1217	else
943	{	1218	{
944	block = MAX_BLOCKTIME;	1219	block = MAX_BLOCKTIME;
945		1220
946	if (timercnt)	1221	if (timercnt)
947	{	1222	{
948	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
949	if (block > to) block = to;	1224	if (block > to) block = to;
950	}	1225	}
951		1226
		1227	#if EV_PERIODICS
952	if (periodiccnt)	1228	if (periodiccnt)
953	{	1229	{
954	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
955	if (block > to) block = to;	1231	if (block > to) block = to;
956	}	1232	}
		1233	#endif
957		1234
958	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
959	}	1236	}
960		1237
961	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
962		1239
963	/* update rt_now, do magic */	1240	/* update ev_rt_now, do magic */
964	time_update (EV_A);	1241	time_update (EV_A);
965		1242
966	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
967	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
968	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
969		1248
970	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
971	if (!pendingcnt)	1250	if (idlecnt && !any_pending (EV_A))
972	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
973		1252
974	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
975	if (checkcnt)	1254	if (expect_false (checkcnt))
976	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
977		1256
978	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
979	}	1261	}
980	while (activecnt && !loop_done);
981		1262
982	if (loop_done != 2)	1263	if (loop_done != 2)
983	loop_done = 0;	1264	loop_done = 0;
984	}	1265	}
985		1266
…		…
1045	void	1326	void
1046	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1047	{	1328	{
1048	int fd = w->fd;	1329	int fd = w->fd;
1049		1330
1050	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1051	return;	1332	return;
1052		1333
1053	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1054		1335
1055	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
1056	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1337	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1057	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1338	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1058		1339
1059	fd_change (EV_A_ fd);	1340	fd_change (EV_A_ fd);
1060	}	1341	}
1061		1342
1062	void	1343	void
1063	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1064	{	1345	{
1065	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1066	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1067	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1068		1351
1069	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1070	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1071		1354
1072	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1073	}	1356	}
1074		1357
1075	void	1358	void
1076	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1077	{	1360	{
1078	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1079	return;	1362	return;
1080		1363
1081	w->at += mn_now;	1364	((WT)w)->at += mn_now;
1082		1365
1083	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1084		1367
1085	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1086	array_needsize (timers, timermax, timercnt, );	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1087	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1088	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
		1372
		1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1089	}	1374	}
1090		1375
1091	void	1376	void
1092	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1093	{	1378	{
1094	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1095	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1096	return;	1381	return;
1097		1382
		1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1384
1098	if (w->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1099	{	1386	{
1100	timers [w->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1101	downheap ((WT *)timers, timercnt, w->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1102	}	1389	}
1103		1390
1104	w->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1105		1392
1106	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1107	}	1394	}
1108		1395
1109	void	1396	void
…		…
1111	{	1398	{
1112	if (ev_is_active (w))	1399	if (ev_is_active (w))
1113	{	1400	{
1114	if (w->repeat)	1401	if (w->repeat)
1115	{	1402	{
1116	w->at = mn_now + w->repeat;	1403	((WT)w)->at = mn_now + w->repeat;
1117	downheap ((WT *)timers, timercnt, w->active - 1);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1118	}	1405	}
1119	else	1406	else
1120	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1121	}	1408	}
1122	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1123	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1124	}	1414	}
1125		1415
		1416	#if EV_PERIODICS
1126	void	1417	void
1127	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1128	{	1419	{
1129	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1130	return;	1421	return;
1131		1422
		1423	if (w->reschedule_cb)
		1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1425	else if (w->interval)
		1426	{
1132	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1427	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1133
1134	/* this formula differs from the one in periodic_reify because we do not always round up */	1428	/* this formula differs from the one in periodic_reify because we do not always round up */
1135	if (w->interval)
1136	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1430	}
1137		1431
1138	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1139	array_needsize (periodics, periodicmax, periodiccnt, );	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1140	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1141	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
		1436
		1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1142	}	1438	}
1143		1439
1144	void	1440	void
1145	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1146	{	1442	{
1147	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1148	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1149	return;	1445	return;
1150		1446
		1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1448
1151	if (w->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1152	{	1450	{
1153	periodics [w->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1154	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1155	}	1453	}
1156		1454
1157	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1158	}	1456	}
1159		1457
1160	void	1458	void
		1459	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1460	{
		1461	/* TODO: use adjustheap and recalculation */
		1462	ev_periodic_stop (EV_A_ w);
		1463	ev_periodic_start (EV_A_ w);
		1464	}
		1465	#endif
		1466
		1467	void
1161	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1162	{	1469	{
1163	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1164	return;	1471	return;
1165		1472
1166	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1167	array_needsize (idles, idlemax, idlecnt, );	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1168	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1169	}	1476	}
1170		1477
1171	void	1478	void
1172	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1173	{	1480	{
1174	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1175	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1176	return;	1483	return;
1177		1484
1178	idles [w->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1179	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1180	}	1487	}
1181		1488
1182	void	1489	void
1183	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1184	{	1491	{
1185	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1186	return;	1493	return;
1187		1494
1188	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1189	array_needsize (prepares, preparemax, preparecnt, );	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1190	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1191	}	1498	}
1192		1499
1193	void	1500	void
1194	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1195	{	1502	{
1196	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1197	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1198	return;	1505	return;
1199		1506
1200	prepares [w->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1201	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1202	}	1509	}
1203		1510
1204	void	1511	void
1205	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1206	{	1513	{
1207	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1208	return;	1515	return;
1209		1516
1210	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1211	array_needsize (checks, checkmax, checkcnt, );	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1212	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1213	}	1520	}
1214		1521
1215	void	1522	void
1216	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1217	{	1524	{
1218	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1219	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1220	return;	1527	return;
1221		1528
1222	checks [w->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1223	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1224	}	1531	}
1225		1532
1226	#ifndef SA_RESTART	1533	#ifndef SA_RESTART
1227	# define SA_RESTART 0	1534	# define SA_RESTART 0
…		…
1229		1536
1230	void	1537	void
1231	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1232	{	1539	{
1233	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1234	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1235	#endif	1542	#endif
1236	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1237	return;	1544	return;
1238		1545
1239	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1240		1547
1241	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1242	array_needsize (signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1243	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1244		1551
1245	if (!w->next)	1552	if (!((WL)w)->next)
1246	{	1553	{
		1554	#if _WIN32
		1555	signal (w->signum, sighandler);
		1556	#else
1247	struct sigaction sa;	1557	struct sigaction sa;
1248	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1249	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
1250	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1560	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1251	sigaction (w->signum, &sa, 0);	1561	sigaction (w->signum, &sa, 0);
		1562	#endif
1252	}	1563	}
1253	}	1564	}
1254		1565
1255	void	1566	void
1256	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1257	{	1568	{
1258	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1259	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1260	return;	1571	return;
1261		1572
1262	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1263	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1264		1575
…		…
1268		1579
1269	void	1580	void
1270	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1271	{	1582	{
1272	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1273	assert (("child watchers are only supported in the default loop", loop == default_loop));	1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1274	#endif	1585	#endif
1275	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1276	return;	1587	return;
1277		1588
1278	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1279	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1280	}	1591	}
1281		1592
1282	void	1593	void
1283	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1284	{	1595	{
1285	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1286	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1287	return;	1598	return;
1288		1599
1289	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1290	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1291	}	1602	}
…		…
1306	void (cb)(int revents, void arg) = once->cb;	1617	void (cb)(int revents, void arg) = once->cb;
1307	void *arg = once->arg;	1618	void *arg = once->arg;
1308		1619
1309	ev_io_stop (EV_A_ &once->io);	1620	ev_io_stop (EV_A_ &once->io);
1310	ev_timer_stop (EV_A_ &once->to);	1621	ev_timer_stop (EV_A_ &once->to);
1311	free (once);	1622	ev_free (once);
1312		1623
1313	cb (revents, arg);	1624	cb (revents, arg);
1314	}	1625	}
1315		1626
1316	static void	1627	static void
…		…
1326	}	1637	}
1327		1638
1328	void	1639	void
1329	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1640	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1330	{	1641	{
1331	struct ev_once *once = malloc (sizeof (struct ev_once));	1642	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1332		1643
1333	if (!once)	1644	if (expect_false (!once))
		1645	{
1334	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1335	else	1647	return;
1336	{	1648	}
		1649
1337	once->cb = cb;	1650	once->cb = cb;
1338	once->arg = arg;	1651	once->arg = arg;
1339		1652
1340	ev_watcher_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1341	if (fd >= 0)	1654	if (fd >= 0)
1342	{	1655	{
1343	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1344	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1345	}	1658	}
1346		1659
1347	ev_watcher_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1348	if (timeout >= 0.)	1661	if (timeout >= 0.)
1349	{	1662	{
1350	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1351	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1352	}
1353	}	1665	}
1354	}	1666	}
1355		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs. Revision 1.125 by root, Sat Nov 17 02:28:43 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.57 by root, Sun Nov 4 16:43:53 2007 UTC vs.
Revision 1.125 by root, Sat Nov 17 02:28:43 2007 UTC