[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 1.124 by root, Sat Nov 17 02:26:24 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	# 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
98	#ifndef EV_EMBED	159	#ifdef EV_H
		160	# include EV_H
		161	#else
99	# include "ev.h"	162	# include "ev.h"
100	#endif	163	#endif
101		164
102	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
104	# define inline inline	167	# define inline static inline
105	#else	168	#else
106	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
107	# define inline static	170	# define inline static
108	#endif	171	#endif
109		172
…		…
111	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
112		175
113	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
116	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
117	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
119		185
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		187
		188	#ifdef _WIN32
		189	# include "ev_win32.c"
		190	#endif
		191
122	/*****************************************************************************/	192	/*****************************************************************************/
123		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
124	typedef struct	242	typedef struct
125	{	243	{
126	struct ev_watcher_list *head;	244	WL head;
127	unsigned char events;	245	unsigned char events;
128	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
129	} ANFD;	250	} ANFD;
130		251
131	typedef struct	252	typedef struct
132	{	253	{
133	W w;	254	W w;
134	int events;	255	int events;
135	} ANPENDING;	256	} ANPENDING;
136		257
137	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
138		259
139	struct ev_loop	260	struct ev_loop
140	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	265	#include "ev_vars.h"
143	};
144	# undef VAR	266	#undef VAR
		267	};
145	# 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;
146		272
147	#else	273	#else
148		274
		275	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	277	#include "ev_vars.h"
151	# undef VAR	278	#undef VAR
		279
		280	static int ev_default_loop_ptr;
152		281
153	#endif	282	#endif
154		283
155	/*****************************************************************************/	284	/*****************************************************************************/
156		285
157	inline ev_tstamp	286	ev_tstamp
158	ev_time (void)	287	ev_time (void)
159	{	288	{
160	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
161	struct timespec ts;	290	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	310	#endif
182		311
183	return ev_time ();	312	return ev_time ();
184	}	313	}
185		314
		315	#if EV_MULTIPLICITY
186	ev_tstamp	316	ev_tstamp
187	ev_now (EV_P)	317	ev_now (EV_P)
188	{	318	{
189	return rt_now;	319	return ev_rt_now;
190	}	320	}
		321	#endif
191		322
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	323	#define array_roundsize(type,n) (((n) \| 4) & ~3)
193		324
194	#define array_needsize(base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
196	{ \	327	{ \
197	int newcnt = cur; \	328	int newcnt = cur; \
198	do \	329	do \
199	{ \	330	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	331	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	332	} \
202	while ((cnt) > newcnt); \	333	while ((cnt) > newcnt); \
203	\	334	\
204	base = realloc (base, sizeof (base) (newcnt)); \	335	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	336	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	337	cur = newcnt; \
207	}	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;
208		350
209	/*****************************************************************************/	351	/*****************************************************************************/
210		352
211	static void	353	static void
212	anfds_init (ANFD *base, int count)	354	anfds_init (ANFD *base, int count)
…		…
219		361
220	++base;	362	++base;
221	}	363	}
222	}	364	}
223		365
224	static void	366	void
225	event (EV_P_ W w, int events)	367	ev_feed_event (EV_P_ void *w, int revents)
226	{	368	{
227	if (w->pending)	369	W w_ = (W)w;
		370
		371	if (expect_false (w_->pending))
228	{	372	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	374	return;
231	}	375	}
232		376
233	w->pending = ++pendingcnt [ABSPRI (w)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	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);
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	381	}
238		382
239	static void	383	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	384	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	385	{
242	int i;	386	int i;
243		387
244	for (i = 0; i < eventcnt; ++i)	388	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	389	ev_feed_event (EV_A_ events [i], type);
246	}	390	}
247		391
248	static void	392	inline void
249	fd_event (EV_P_ int fd, int events)	393	fd_event (EV_P_ int fd, int revents)
250	{	394	{
251	ANFD *anfd = anfds + fd;	395	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	396	struct ev_io *w;
253		397
254	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)
255	{	399	{
256	int ev = w->events & events;	400	int ev = w->events & revents;
257		401
258	if (ev)	402	if (ev)
259	event (EV_A_ (W)w, ev);	403	ev_feed_event (EV_A_ (W)w, ev);
260	}	404	}
		405	}
		406
		407	void
		408	ev_feed_fd_event (EV_P_ int fd, int revents)
		409	{
		410	fd_event (EV_A_ fd, revents);
261	}	411	}
262		412
263	/*****************************************************************************/	413	/*****************************************************************************/
264		414
265	static void	415	inline void
266	fd_reify (EV_P)	416	fd_reify (EV_P)
267	{	417	{
268	int i;	418	int i;
269		419
270	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
276	int events = 0;	426	int events = 0;
277		427
278	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)
279	events \|= w->events;	429	events \|= w->events;
280		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
281	anfd->reify = 0;	440	anfd->reify = 0;
282		441
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	443	anfd->events = events;
287	}
288	}	444	}
289		445
290	fdchangecnt = 0;	446	fdchangecnt = 0;
291	}	447	}
292		448
293	static void	449	static void
294	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
295	{	451	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	452	if (expect_false (anfds [fd].reify))
297	return;	453	return;
298		454
299	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
300		456
301	++fdchangecnt;	457	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
303	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
304	}	460	}
305		461
306	static void	462	static void
307	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	465	struct ev_io *w;
310		466
311	while ((w = (struct ev_io *)anfds [fd].head))	467	while ((w = (struct ev_io *)anfds [fd].head))
312	{	468	{
313	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
314	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);
315	}	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
316	}	482	}
317		483
318	/* called on EBADF to verify fds */	484	/* called on EBADF to verify fds */
319	static void	485	static void
320	fd_ebadf (EV_P)	486	fd_ebadf (EV_P)
321	{	487	{
322	int fd;	488	int fd;
323		489
324	for (fd = 0; fd < anfdmax; ++fd)	490	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	491	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	492	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	493	fd_kill (EV_A_ fd);
328	}	494	}
329		495
330	/* 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 */
331	static void	497	static void
332	fd_enomem (EV_P)	498	fd_enomem (EV_P)
333	{	499	{
334	int fd = anfdmax;	500	int fd;
335		501
336	while (fd--)	502	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	503	if (anfds [fd].events)
338	{	504	{
339	close (fd);
340	fd_kill (EV_A_ fd);	505	fd_kill (EV_A_ fd);
341	return;	506	return;
342	}	507	}
343	}	508	}
344		509
345	/* 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 */
346	static void	511	static void
347	fd_rearm_all (EV_P)	512	fd_rearm_all (EV_P)
348	{	513	{
349	int fd;	514	int fd;
350		515
351	/* 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 */
352	for (fd = 0; fd < anfdmax; ++fd)	517	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	518	if (anfds [fd].events)
354	{	519	{
355	anfds [fd].events = 0;	520	anfds [fd].events = 0;
356	fd_change (fd);	521	fd_change (EV_A_ fd);
357	}	522	}
358	}	523	}
359		524
360	/*****************************************************************************/	525	/*****************************************************************************/
361		526
…		…
365	WT w = heap [k];	530	WT w = heap [k];
366		531
367	while (k && heap [k >> 1]->at > w->at)	532	while (k && heap [k >> 1]->at > w->at)
368	{	533	{
369	heap [k] = heap [k >> 1];	534	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
371	k >>= 1;	536	k >>= 1;
372	}	537	}
373		538
374	heap [k] = w;	539	heap [k] = w;
375	heap [k]->active = k + 1;	540	((W)heap [k])->active = k + 1;
376		541
377	}	542	}
378		543
379	static void	544	static void
380	downheap (WT *heap, int N, int k)	545	downheap (WT *heap, int N, int k)
…		…
390		555
391	if (w->at <= heap [j]->at)	556	if (w->at <= heap [j]->at)
392	break;	557	break;
393		558
394	heap [k] = heap [j];	559	heap [k] = heap [j];
395	heap [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
396	k = j;	561	k = j;
397	}	562	}
398		563
399	heap [k] = w;	564	heap [k] = w;
400	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);
401	}	573	}
402		574
403	/*****************************************************************************/	575	/*****************************************************************************/
404		576
405	typedef struct	577	typedef struct
406	{	578	{
407	struct ev_watcher_list *head;	579	WL head;
408	sig_atomic_t volatile gotsig;	580	sig_atomic_t volatile gotsig;
409	} ANSIG;	581	} ANSIG;
410		582
411	static ANSIG *signals;	583	static ANSIG *signals;
412	static int signalmax;	584	static int signalmax;
413		585
414	static int sigpipe [2];	586	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	587	static sig_atomic_t volatile gotsig;
		588	static struct ev_io sigev;
416		589
417	static void	590	static void
418	signals_init (ANSIG *base, int count)	591	signals_init (ANSIG *base, int count)
419	{	592	{
420	while (count--)	593	while (count--)
…		…
427	}	600	}
428		601
429	static void	602	static void
430	sighandler (int signum)	603	sighandler (int signum)
431	{	604	{
		605	#if _WIN32
		606	signal (signum, sighandler);
		607	#endif
		608
432	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
433		610
434	if (!gotsig)	611	if (!gotsig)
435	{	612	{
436	int old_errno = errno;	613	int old_errno = errno;
…		…
438	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
439	errno = old_errno;	616	errno = old_errno;
440	}	617	}
441	}	618	}
442		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
443	static void	640	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	642	{
446	struct ev_watcher_list *w;
447	int signum;	643	int signum;
448		644
449	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
450	gotsig = 0;	646	gotsig = 0;
451		647
452	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
454	{	650	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;	651	}
456		652
457	for (w = signals [signum].head; w; w = w->next)	653	static void
458	event (EV_A_ (W)w, EV_SIGNAL);	654	fd_intern (int fd)
459	}	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
460	}	663	}
461		664
462	static void	665	static void
463	siginit (EV_P)	666	siginit (EV_P)
464	{	667	{
465	#ifndef WIN32	668	fd_intern (sigpipe [0]);
466	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	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		670
474	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
475	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	674	}
478		675
479	/*****************************************************************************/	676	/*****************************************************************************/
480		677
		678	static struct ev_child *childs [PID_HASHSIZE];
		679
481	#ifndef WIN32	680	#ifndef _WIN32
		681
		682	static struct ev_signal childev;
482		683
483	#ifndef WCONTINUED	684	#ifndef WCONTINUED
484	# define WCONTINUED 0	685	# define WCONTINUED 0
485	#endif	686	#endif
486		687
…		…
490	struct ev_child *w;	691	struct ev_child *w;
491		692
492	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)
493	if (w->pid == pid \|\| !w->pid)	694	if (w->pid == pid \|\| !w->pid)
494	{	695	{
495	w->priority = sw->priority; /* need to do it now */	696	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	697	w->rpid = pid;
497	w->rstatus = status;	698	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	699	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	700	}
500	}	701	}
501		702
502	static void	703	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	704	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	706	int pid, status;
506		707
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	708	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	709	{
509	/* 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 */
510	event (EV_A_ (W)sw, EV_SIGNAL);	711	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		712
512	child_reap (EV_A_ sw, pid, pid, status);	713	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 */	714	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	715	}
515	}	716	}
516		717
517	#endif	718	#endif
518		719
519	/*****************************************************************************/	720	/*****************************************************************************/
520		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
521	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
522	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
523	#endif	727	#endif
524	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	729	# include "ev_epoll.c"
526	#endif	730	#endif
527	#if EV_USEV_POLL	731	#if EV_USE_POLL
528	# include "ev_poll.c"	732	# include "ev_poll.c"
529	#endif	733	#endif
530	#if EV_USE_SELECT	734	#if EV_USE_SELECT
531	# include "ev_select.c"	735	# include "ev_select.c"
532	#endif	736	#endif
…		…
545		749
546	/* 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 */
547	static int	751	static int
548	enable_secure (void)	752	enable_secure (void)
549	{	753	{
550	#ifdef WIN32	754	#ifdef _WIN32
551	return 0;	755	return 0;
552	#else	756	#else
553	return getuid () != geteuid ()	757	return getuid () != geteuid ()
554	\|\| getgid () != getegid ();	758	\|\| getgid () != getegid ();
555	#endif	759	#endif
556	}	760	}
557		761
558	int	762	unsigned int
559	ev_method (EV_P)	763	ev_method (EV_P)
560	{	764	{
561	return method;	765	return method;
562	}	766	}
563		767
564	static void	768	static void
565	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
566	{	770	{
567	if (!method)	771	if (!method)
568	{	772	{
569	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
570	{	774	{
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	777	have_monotonic = 1;
574	}	778	}
575	#endif	779	#endif
576		780
577	rt_now = ev_time ();	781	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	782	mn_now = get_clock ();
579	now_floor = mn_now;	783	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
581		785
582	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
585	else	788
586	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags \|= 0x0000ffff;
587		791
588	method = 0;	792	method = 0;
		793	#if EV_USE_PORT
		794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		795	#endif
589	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
591	#endif	798	#endif
592	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
594	#endif	801	#endif
595	#if EV_USEV_POLL	802	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
597	#endif	804	#endif
598	#if EV_USE_SELECT	805	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
600	#endif	807	#endif
601	}
602	}
603		808
604	void	809	ev_init (&sigev, sigcb);
		810	ev_set_priority (&sigev, EV_MAXPRI);
		811	}
		812	}
		813
		814	static void
605	loop_destroy (EV_P)	815	loop_destroy (EV_P)
606	{	816	{
		817	int i;
		818
		819	#if EV_USE_PORT
		820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		821	#endif
607	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	824	#endif
610	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	826	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	827	#endif
613	#if EV_USEV_POLL	828	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	829	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	830	#endif
616	#if EV_USE_SELECT	831	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	832	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	833	#endif
619		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
620	method = 0;	848	method = 0;
621	/TODO/
622	}	849	}
623		850
624	void	851	static void
625	loop_fork (EV_P)	852	loop_fork (EV_P)
626	{	853	{
627	/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
628	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	862	#endif
631	#if EV_USE_KQUEUE	863
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	864	if (ev_is_active (&sigev))
633	#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;
634	}	880	}
635		881
636	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
637	struct ev_loop *	883	struct ev_loop *
638	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
639	{	885	{
640	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));
641		887
		888	memset (loop, 0, sizeof (struct ev_loop));
		889
642	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
643		891
644	if (ev_methods (EV_A))	892	if (ev_method (EV_A))
645	return loop;	893	return loop;
646		894
647	return 0;	895	return 0;
648	}	896	}
649		897
650	void	898	void
651	ev_loop_destroy (EV_P)	899	ev_loop_destroy (EV_P)
652	{	900	{
653	loop_destroy (EV_A);	901	loop_destroy (EV_A);
654	free (loop);	902	ev_free (loop);
655	}	903	}
656		904
657	void	905	void
658	ev_loop_fork (EV_P)	906	ev_loop_fork (EV_P)
659	{	907	{
660	loop_fork (EV_A);	908	postfork = 1;
661	}	909	}
662		910
663	#endif	911	#endif
664		912
665	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_ (unsigned int flags)
670	#else	916	#else
671	static int default_loop;
672
673	int	917	int
		918	ev_default_loop (unsigned int flags)
674	#endif	919	#endif
675	ev_default_loop (int methods)
676	{	920	{
677	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
678	if (pipe (sigpipe))	922	if (pipe (sigpipe))
679	return 0;	923	return 0;
680		924
681	if (!default_loop)	925	if (!ev_default_loop_ptr)
682	{	926	{
683	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
684	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
685	#else	929	#else
686	default_loop = 1;	930	ev_default_loop_ptr = 1;
687	#endif	931	#endif
688		932
689	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
690		934
691	if (ev_method (EV_A))	935	if (ev_method (EV_A))
692	{	936	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	937	siginit (EV_A);
696		938
697	#ifndef WIN32	939	#ifndef _WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
700	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
701	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
702	#endif	944	#endif
703	}	945	}
704	else	946	else
705	default_loop = 0;	947	ev_default_loop_ptr = 0;
706	}	948	}
707		949
708	return default_loop;	950	return ev_default_loop_ptr;
709	}	951	}
710		952
711	void	953	void
712	ev_default_destroy (void)	954	ev_default_destroy (void)
713	{	955	{
714	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
716	#endif	958	#endif
717		959
		960	#ifndef _WIN32
718	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
		963	#endif
720		964
721	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	966	ev_io_stop (EV_A_ &sigev);
723		967
724	close (sigpipe [0]); sigpipe [0] = 0;	968	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		970
727	loop_destroy (EV_A);	971	loop_destroy (EV_A);
728	}	972	}
729		973
730	void	974	void
731	ev_default_fork (EV_P)	975	ev_default_fork (void)
732	{	976	{
733	loop_fork (EV_A);	977	#if EV_MULTIPLICITY
		978	struct ev_loop *loop = ev_default_loop_ptr;
		979	#endif
734		980
735	ev_io_stop (EV_A_ &sigev);	981	if (method)
736	close (sigpipe [0]);	982	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	983	}
743		984
744	/*****************************************************************************/	985	/*****************************************************************************/
745		986
746	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
747	call_pending (EV_P)	1000	call_pending (EV_P)
748	{	1001	{
749	int pri;	1002	int pri;
750		1003
751	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
752	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
753	{	1006	{
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		1008
756	if (p->w)	1009	if (expect_true (p->w))
757	{	1010	{
758	p->w->pending = 0;	1011	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
760	}	1013	}
761	}	1014	}
762	}	1015	}
763		1016
764	static void	1017	inline void
765	timers_reify (EV_P)	1018	timers_reify (EV_P)
766	{	1019	{
767	while (timercnt && timers [0]->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	1021	{
769	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)));
770		1025
771	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
772	if (w->repeat)	1027	if (w->repeat)
773	{	1028	{
774	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
775	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
776	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
777	}	1036	}
778	else	1037	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1039
781	event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1041	}
783	}	1042	}
784		1043
785	static void	1044	#if EV_PERIODICS
		1045	inline void
786	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
787	{	1047	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1049	{
790	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
791		1051
		1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1053
792	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
793	if (w->interval)	1055	if (w->reschedule_cb)
794	{	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	{
795	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;
796	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));
797	downheap ((WT *)periodics, periodiccnt, 0);	1065	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1066	}
799	else	1067	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1069
802	event (EV_A_ (W)w, EV_PERIODIC);	1070	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1071	}
804	}	1072	}
805		1073
806	static void	1074	static void
807	periodics_reschedule (EV_P)	1075	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1079	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1080	for (i = 0; i < periodiccnt; ++i)
813	{	1081	{
814	struct ev_periodic *w = periodics [i];	1082	struct ev_periodic *w = periodics [i];
815		1083
		1084	if (w->reschedule_cb)
		1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1086	else if (w->interval)
817	{
818	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;
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	}	1088	}
		1089
		1090	/* now rebuild the heap */
		1091	for (i = periodiccnt >> 1; i--; )
		1092	downheap ((WT *)periodics, periodiccnt, i);
829	}	1093	}
		1094	#endif
830		1095
831	inline int	1096	inline int
832	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
833	{	1098	{
834	mn_now = get_clock ();	1099	mn_now = get_clock ();
835		1100
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1102	{
838	rt_now = rtmn_diff + mn_now;	1103	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1104	return 0;
840	}	1105	}
841	else	1106	else
842	{	1107	{
843	now_floor = mn_now;	1108	now_floor = mn_now;
844	rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
845	return 1;	1110	return 1;
846	}	1111	}
847	}	1112	}
848		1113
849	static void	1114	inline void
850	time_update (EV_P)	1115	time_update (EV_P)
851	{	1116	{
852	int i;	1117	int i;
853		1118
854	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
858	{	1123	{
859	ev_tstamp odiff = rtmn_diff;	1124	ev_tstamp odiff = rtmn_diff;
860		1125
861	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 */
862	{	1127	{
863	rtmn_diff = rt_now - mn_now;	1128	rtmn_diff = ev_rt_now - mn_now;
864		1129
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1131	return; /* all is well */
867		1132
868	rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1134	mn_now = get_clock ();
870	now_floor = mn_now;	1135	now_floor = mn_now;
871	}	1136	}
872		1137
		1138	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1143	}
877	}	1144	}
878	else	1145	else
879	#endif	1146	#endif
880	{	1147	{
881	rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
882		1149
883	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))
884	{	1151	{
		1152	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
886		1155
887	/* 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 */
888	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1159	}
891		1160
892	mn_now = rt_now;	1161	mn_now = ev_rt_now;
893	}	1162	}
894	}	1163	}
895		1164
896	void	1165	void
897	ev_ref (EV_P)	1166	ev_ref (EV_P)
…		…
911	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
912	{	1181	{
913	double block;	1182	double block;
914	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
915		1184
916	do	1185	while (activecnt)
917	{	1186	{
918	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
919	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
920	{	1189	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1191	call_pending (EV_A);
923	}	1192	}
924		1193
		1194	/* we might have forked, so reify kernel state if necessary */
		1195	if (expect_false (postfork))
		1196	loop_fork (EV_A);
		1197
925	/* update fd-related kernel structures */	1198	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1199	fd_reify (EV_A);
927		1200
928	/* calculate blocking time */	1201	/* calculate blocking time */
929		1202
930	/* 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
931	always have timers, we just calculate it always */	1204	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1205	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1206	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1207	time_update_monotonic (EV_A);
935	else	1208	else
936	#endif	1209	#endif
937	{	1210	{
938	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1212	mn_now = ev_rt_now;
940	}	1213	}
941		1214
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1215	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1216	block = 0.;
944	else	1217	else
945	{	1218	{
946	block = MAX_BLOCKTIME;	1219	block = MAX_BLOCKTIME;
947		1220
948	if (timercnt)	1221	if (timercnt)
949	{	1222	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1224	if (block > to) block = to;
952	}	1225	}
953		1226
		1227	#if EV_PERIODICS
954	if (periodiccnt)	1228	if (periodiccnt)
955	{	1229	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1231	if (block > to) block = to;
958	}	1232	}
		1233	#endif
959		1234
960	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
961	}	1236	}
962		1237
963	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
964		1239
965	/* update rt_now, do magic */	1240	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1241	time_update (EV_A);
967		1242
968	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
971		1248
972	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1250	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1252
976	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
977	if (checkcnt)	1254	if (expect_false (checkcnt))
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
979		1256
980	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
981	}	1261	}
982	while (activecnt && !loop_done);
983		1262
984	if (loop_done != 2)	1263	if (loop_done != 2)
985	loop_done = 0;	1264	loop_done = 0;
986	}	1265	}
987		1266
…		…
1047	void	1326	void
1048	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1049	{	1328	{
1050	int fd = w->fd;	1329	int fd = w->fd;
1051		1330
1052	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1053	return;	1332	return;
1054		1333
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1335
1057	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1337	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1338	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1339
1061	fd_change (EV_A_ fd);	1340	fd_change (EV_A_ fd);
1062	}	1341	}
1063		1342
1064	void	1343	void
1065	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1066	{	1345	{
1067	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1069	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1070		1351
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1073		1354
1074	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1075	}	1356	}
1076		1357
1077	void	1358	void
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1360	{
1080	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1081	return;	1362	return;
1082		1363
1083	w->at += mn_now;	1364	((WT)w)->at += mn_now;
1084		1365
1085	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.));
1086		1367
1087	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1089	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
		1372
		1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1374	}
1092		1375
1093	void	1376	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1378	{
1096	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1098	return;	1381	return;
1099		1382
		1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1384
1100	if (w->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1101	{	1386	{
1102	timers [w->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1389	}
1105		1390
1106	w->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1107		1392
1108	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1109	}	1394	}
1110		1395
1111	void	1396	void
…		…
1113	{	1398	{
1114	if (ev_is_active (w))	1399	if (ev_is_active (w))
1115	{	1400	{
1116	if (w->repeat)	1401	if (w->repeat)
1117	{	1402	{
1118	w->at = mn_now + w->repeat;	1403	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1405	}
1121	else	1406	else
1122	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1123	}	1408	}
1124	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1125	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1126	}	1414	}
1127		1415
		1416	#if EV_PERIODICS
1128	void	1417	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1419	{
1131	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1132	return;	1421	return;
1133		1422
		1423	if (w->reschedule_cb)
		1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1425	else if (w->interval)
		1426	{
1134	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.));
1135
1136	/* 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 */
1137	if (w->interval)
1138	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	}
1139		1431
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1142	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
		1436
		1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1438	}
1145		1439
1146	void	1440	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1442	{
1149	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1151	return;	1445	return;
1152		1446
		1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1448
1153	if (w->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1154	{	1450	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1453	}
1158		1454
1159	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1160	}	1456	}
1161		1457
1162	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
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1469	{
1165	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1166	return;	1471	return;
1167		1472
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1170	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1171	}	1476	}
1172		1477
1173	void	1478	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1480	{
1176	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1178	return;	1483	return;
1179		1484
1180	idles [w->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1182	}	1487	}
1183		1488
1184	void	1489	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1491	{
1187	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1188	return;	1493	return;
1189		1494
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1192	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1193	}	1498	}
1194		1499
1195	void	1500	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1502	{
1198	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1200	return;	1505	return;
1201		1506
1202	prepares [w->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1204	}	1509	}
1205		1510
1206	void	1511	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1513	{
1209	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1210	return;	1515	return;
1211		1516
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1214	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1215	}	1520	}
1216		1521
1217	void	1522	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1524	{
1220	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1222	return;	1527	return;
1223		1528
1224	checks [w->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1226	}	1531	}
1227		1532
1228	#ifndef SA_RESTART	1533	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1534	# define SA_RESTART 0
…		…
1231		1536
1232	void	1537	void
1233	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1234	{	1539	{
1235	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1236	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));
1237	#endif	1542	#endif
1238	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1239	return;	1544	return;
1240		1545
1241	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));
1242		1547
1243	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1551
1247	if (!w->next)	1552	if (!((WL)w)->next)
1248	{	1553	{
		1554	#if _WIN32
		1555	signal (w->signum, sighandler);
		1556	#else
1249	struct sigaction sa;	1557	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
1252	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 */
1253	sigaction (w->signum, &sa, 0);	1561	sigaction (w->signum, &sa, 0);
		1562	#endif
1254	}	1563	}
1255	}	1564	}
1256		1565
1257	void	1566	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1259	{	1568	{
1260	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1261	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1262	return;	1571	return;
1263		1572
1264	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1265	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1266		1575
…		…
1270		1579
1271	void	1580	void
1272	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1273	{	1582	{
1274	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1275	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));
1276	#endif	1585	#endif
1277	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1278	return;	1587	return;
1279		1588
1280	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1281	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1282	}	1591	}
1283		1592
1284	void	1593	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1595	{
1287	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1289	return;	1598	return;
1290		1599
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1293	}	1602	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1617	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1618	void *arg = once->arg;
1310		1619
1311	ev_io_stop (EV_A_ &once->io);	1620	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1621	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1622	ev_free (once);
1314		1623
1315	cb (revents, arg);	1624	cb (revents, arg);
1316	}	1625	}
1317		1626
1318	static void	1627	static void
…		…
1328	}	1637	}
1329		1638
1330	void	1639	void
1331	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)
1332	{	1641	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1642	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1643
1335	if (!once)	1644	if (expect_false (!once))
		1645	{
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1647	return;
1338	{	1648	}
		1649
1339	once->cb = cb;	1650	once->cb = cb;
1340	once->arg = arg;	1651	once->arg = arg;
1341		1652
1342	ev_watcher_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1654	if (fd >= 0)
1344	{	1655	{
1345	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1347	}	1658	}
1348		1659
1349	ev_watcher_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1661	if (timeout >= 0.)
1351	{	1662	{
1352	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1354	}
1355	}	1665	}
1356	}	1666	}
1357		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs. Revision 1.124 by root, Sat Nov 17 02:26:24 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 1.124 by root, Sat Nov 17 02:26:24 2007 UTC