[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 1.128 by root, Thu Nov 22 12:28:27 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
		53	# endif
		54
		55	# ifndef EV_USE_SELECT
		56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
		61	# endif
		62
		63	# ifndef EV_USE_POLL
		64	# if HAVE_POLL && HAVE_POLL_H
		65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
		69	# endif
		70
		71	# ifndef EV_USE_EPOLL
		72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
		77	# endif
		78
		79	# ifndef EV_USE_KQUEUE
		80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
		93	# endif
		94
33	#endif	95	#endif
34		96
35	#include <math.h>	97	#include <math.h>
36	#include <stdlib.h>	98	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	99	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	100	#include <stddef.h>
41		101
42	#include <stdio.h>	102	#include <stdio.h>
43		103
44	#include <assert.h>	104	#include <assert.h>
45	#include <errno.h>	105	#include <errno.h>
46	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
47	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
48	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	120	# endif
50	#include <sys/time.h>	121	#endif
51	#include <time.h>
52		122
53	/**/	123	/**/
54		124
55	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
57	#endif	131	#endif
58		132
59	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
61	#endif	135	#endif
62		136
63	#ifndef EV_USEV_POLL	137	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
65	#endif	143	#endif
66		144
67	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
69	#endif	147	#endif
70		148
71	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
73	#endif	151	#endif
74		152
75	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
77	#endif	155	#endif
78		156
79	/**/	157	/**/
		158
		159	/* darwin simply cannot be helped */
		160	#ifdef __APPLE__
		161	# undef EV_USE_POLL
		162	# undef EV_USE_KQUEUE
		163	#endif
80		164
81	#ifndef CLOCK_MONOTONIC	165	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	166	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	167	# define EV_USE_MONOTONIC 0
84	#endif	168	#endif
…		…
86	#ifndef CLOCK_REALTIME	170	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	171	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	172	# define EV_USE_REALTIME 0
89	#endif	173	#endif
90		174
		175	#if EV_SELECT_IS_WINSOCKET
		176	# include <winsock.h>
		177	#endif
		178
91	/**/	179	/**/
92		180
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	181	#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) */	182	#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 */	183	#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 */	184	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
97		185
98	#ifndef EV_EMBED	186	#ifdef EV_H
		187	# include EV_H
		188	#else
99	# include "ev.h"	189	# include "ev.h"
100	#endif	190	#endif
101		191
102	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
104	# define inline inline	194	# define inline static inline
105	#else	195	#else
106	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
107	# define inline static	197	# define inline static
108	#endif	198	#endif
109		199
…		…
111	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
112		202
113	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
116	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
117	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
119		212
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		214
		215	#ifdef _WIN32
		216	# include "ev_win32.c"
		217	#endif
		218
122	/*****************************************************************************/	219	/*****************************************************************************/
123		220
		221	static void (syserr_cb)(const char msg);
		222
		223	void ev_set_syserr_cb (void (cb)(const char msg))
		224	{
		225	syserr_cb = cb;
		226	}
		227
		228	static void
		229	syserr (const char *msg)
		230	{
		231	if (!msg)
		232	msg = "(libev) system error";
		233
		234	if (syserr_cb)
		235	syserr_cb (msg);
		236	else
		237	{
		238	perror (msg);
		239	abort ();
		240	}
		241	}
		242
		243	static void (alloc)(void *ptr, long size);
		244
		245	void ev_set_allocator (void (cb)(void *ptr, long size))
		246	{
		247	alloc = cb;
		248	}
		249
		250	static void *
		251	ev_realloc (void *ptr, long size)
		252	{
		253	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		254
		255	if (!ptr && size)
		256	{
		257	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		258	abort ();
		259	}
		260
		261	return ptr;
		262	}
		263
		264	#define ev_malloc(size) ev_realloc (0, (size))
		265	#define ev_free(ptr) ev_realloc ((ptr), 0)
		266
		267	/*****************************************************************************/
		268
124	typedef struct	269	typedef struct
125	{	270	{
126	struct ev_watcher_list *head;	271	WL head;
127	unsigned char events;	272	unsigned char events;
128	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
129	} ANFD;	277	} ANFD;
130		278
131	typedef struct	279	typedef struct
132	{	280	{
133	W w;	281	W w;
134	int events;	282	int events;
135	} ANPENDING;	283	} ANPENDING;
136		284
137	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
138		286
139	struct ev_loop	287	struct ev_loop
140	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	292	#include "ev_vars.h"
143	};
144	# undef VAR	293	#undef VAR
		294	};
145	# include "ev_wrap.h"	295	#include "ev_wrap.h"
		296
		297	static struct ev_loop default_loop_struct;
		298	struct ev_loop *ev_default_loop_ptr;
146		299
147	#else	300	#else
148		301
		302	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	304	#include "ev_vars.h"
151	# undef VAR	305	#undef VAR
		306
		307	static int ev_default_loop_ptr;
152		308
153	#endif	309	#endif
154		310
155	/*****************************************************************************/	311	/*****************************************************************************/
156		312
157	inline ev_tstamp	313	ev_tstamp
158	ev_time (void)	314	ev_time (void)
159	{	315	{
160	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
161	struct timespec ts;	317	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	337	#endif
182		338
183	return ev_time ();	339	return ev_time ();
184	}	340	}
185		341
		342	#if EV_MULTIPLICITY
186	ev_tstamp	343	ev_tstamp
187	ev_now (EV_P)	344	ev_now (EV_P)
188	{	345	{
189	return rt_now;	346	return ev_rt_now;
190	}	347	}
		348	#endif
191		349
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
193		351
194	#define array_needsize(base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
196	{ \	354	{ \
197	int newcnt = cur; \	355	int newcnt = cur; \
198	do \	356	do \
199	{ \	357	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	358	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	359	} \
202	while ((cnt) > newcnt); \	360	while ((cnt) > newcnt); \
203	\	361	\
204	base = realloc (base, sizeof (base) (newcnt)); \	362	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	363	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	364	cur = newcnt; \
207	}	365	}
		366
		367	#define array_slim(type,stem) \
		368	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		369	{ \
		370	stem ## max = array_roundsize (stem ## cnt >> 1); \
		371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		373	}
		374
		375	#define array_free(stem, idx) \
		376	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		377
209	/*****************************************************************************/	378	/*****************************************************************************/
210		379
211	static void	380	static void
212	anfds_init (ANFD *base, int count)	381	anfds_init (ANFD *base, int count)
…		…
219		388
220	++base;	389	++base;
221	}	390	}
222	}	391	}
223		392
224	static void	393	void
225	event (EV_P_ W w, int events)	394	ev_feed_event (EV_P_ void *w, int revents)
226	{	395	{
227	if (w->pending)	396	W w_ = (W)w;
		397
		398	if (expect_false (w_->pending))
228	{	399	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	401	return;
231	}	402	}
232		403
233	w->pending = ++pendingcnt [ABSPRI (w)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	405	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	408	}
238		409
239	static void	410	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	411	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	412	{
242	int i;	413	int i;
243		414
244	for (i = 0; i < eventcnt; ++i)	415	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	416	ev_feed_event (EV_A_ events [i], type);
246	}	417	}
247		418
248	static void	419	inline void
249	fd_event (EV_P_ int fd, int events)	420	fd_event (EV_P_ int fd, int revents)
250	{	421	{
251	ANFD *anfd = anfds + fd;	422	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	423	struct ev_io *w;
253		424
254	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	425	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	{	426	{
256	int ev = w->events & events;	427	int ev = w->events & revents;
257		428
258	if (ev)	429	if (ev)
259	event (EV_A_ (W)w, ev);	430	ev_feed_event (EV_A_ (W)w, ev);
260	}	431	}
		432	}
		433
		434	void
		435	ev_feed_fd_event (EV_P_ int fd, int revents)
		436	{
		437	fd_event (EV_A_ fd, revents);
261	}	438	}
262		439
263	/*****************************************************************************/	440	/*****************************************************************************/
264		441
265	static void	442	inline void
266	fd_reify (EV_P)	443	fd_reify (EV_P)
267	{	444	{
268	int i;	445	int i;
269		446
270	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
276	int events = 0;	453	int events = 0;
277		454
278	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	455	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
279	events \|= w->events;	456	events \|= w->events;
280		457
		458	#if EV_SELECT_IS_WINSOCKET
		459	if (events)
		460	{
		461	unsigned long argp;
		462	anfd->handle = _get_osfhandle (fd);
		463	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		464	}
		465	#endif
		466
281	anfd->reify = 0;	467	anfd->reify = 0;
282		468
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	470	anfd->events = events;
287	}
288	}	471	}
289		472
290	fdchangecnt = 0;	473	fdchangecnt = 0;
291	}	474	}
292		475
293	static void	476	static void
294	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
295	{	478	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	479	if (expect_false (anfds [fd].reify))
297	return;	480	return;
298		481
299	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
300		483
301	++fdchangecnt;	484	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
303	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
304	}	487	}
305		488
306	static void	489	static void
307	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	492	struct ev_io *w;
310		493
311	while ((w = (struct ev_io *)anfds [fd].head))	494	while ((w = (struct ev_io *)anfds [fd].head))
312	{	495	{
313	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	497	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
315	}	498	}
		499	}
		500
		501	inline int
		502	fd_valid (int fd)
		503	{
		504	#ifdef _WIN32
		505	return _get_osfhandle (fd) != -1;
		506	#else
		507	return fcntl (fd, F_GETFD) != -1;
		508	#endif
316	}	509	}
317		510
318	/* called on EBADF to verify fds */	511	/* called on EBADF to verify fds */
319	static void	512	static void
320	fd_ebadf (EV_P)	513	fd_ebadf (EV_P)
321	{	514	{
322	int fd;	515	int fd;
323		516
324	for (fd = 0; fd < anfdmax; ++fd)	517	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	518	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	519	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	520	fd_kill (EV_A_ fd);
328	}	521	}
329		522
330	/* called on ENOMEM in select/poll to kill some fds and retry */	523	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	524	static void
332	fd_enomem (EV_P)	525	fd_enomem (EV_P)
333	{	526	{
334	int fd = anfdmax;	527	int fd;
335		528
336	while (fd--)	529	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	530	if (anfds [fd].events)
338	{	531	{
339	close (fd);
340	fd_kill (EV_A_ fd);	532	fd_kill (EV_A_ fd);
341	return;	533	return;
342	}	534	}
343	}	535	}
344		536
345	/* susually called after fork if method needs to re-arm all fds from scratch */	537	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	538	static void
347	fd_rearm_all (EV_P)	539	fd_rearm_all (EV_P)
348	{	540	{
349	int fd;	541	int fd;
350		542
351	/* this should be highly optimised to not do anything but set a flag */	543	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	544	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	545	if (anfds [fd].events)
354	{	546	{
355	anfds [fd].events = 0;	547	anfds [fd].events = 0;
356	fd_change (fd);	548	fd_change (EV_A_ fd);
357	}	549	}
358	}	550	}
359		551
360	/*****************************************************************************/	552	/*****************************************************************************/
361		553
…		…
365	WT w = heap [k];	557	WT w = heap [k];
366		558
367	while (k && heap [k >> 1]->at > w->at)	559	while (k && heap [k >> 1]->at > w->at)
368	{	560	{
369	heap [k] = heap [k >> 1];	561	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	562	((W)heap [k])->active = k + 1;
371	k >>= 1;	563	k >>= 1;
372	}	564	}
373		565
374	heap [k] = w;	566	heap [k] = w;
375	heap [k]->active = k + 1;	567	((W)heap [k])->active = k + 1;
376		568
377	}	569	}
378		570
379	static void	571	static void
380	downheap (WT *heap, int N, int k)	572	downheap (WT *heap, int N, int k)
…		…
390		582
391	if (w->at <= heap [j]->at)	583	if (w->at <= heap [j]->at)
392	break;	584	break;
393		585
394	heap [k] = heap [j];	586	heap [k] = heap [j];
395	heap [k]->active = k + 1;	587	((W)heap [k])->active = k + 1;
396	k = j;	588	k = j;
397	}	589	}
398		590
399	heap [k] = w;	591	heap [k] = w;
400	heap [k]->active = k + 1;	592	((W)heap [k])->active = k + 1;
		593	}
		594
		595	inline void
		596	adjustheap (WT *heap, int N, int k)
		597	{
		598	upheap (heap, k);
		599	downheap (heap, N, k);
401	}	600	}
402		601
403	/*****************************************************************************/	602	/*****************************************************************************/
404		603
405	typedef struct	604	typedef struct
406	{	605	{
407	struct ev_watcher_list *head;	606	WL head;
408	sig_atomic_t volatile gotsig;	607	sig_atomic_t volatile gotsig;
409	} ANSIG;	608	} ANSIG;
410		609
411	static ANSIG *signals;	610	static ANSIG *signals;
412	static int signalmax;	611	static int signalmax;
413		612
414	static int sigpipe [2];	613	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	614	static sig_atomic_t volatile gotsig;
		615	static struct ev_io sigev;
416		616
417	static void	617	static void
418	signals_init (ANSIG *base, int count)	618	signals_init (ANSIG *base, int count)
419	{	619	{
420	while (count--)	620	while (count--)
…		…
427	}	627	}
428		628
429	static void	629	static void
430	sighandler (int signum)	630	sighandler (int signum)
431	{	631	{
		632	#if _WIN32
		633	signal (signum, sighandler);
		634	#endif
		635
432	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
433		637
434	if (!gotsig)	638	if (!gotsig)
435	{	639	{
436	int old_errno = errno;	640	int old_errno = errno;
…		…
438	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
439	errno = old_errno;	643	errno = old_errno;
440	}	644	}
441	}	645	}
442		646
		647	void
		648	ev_feed_signal_event (EV_P_ int signum)
		649	{
		650	WL w;
		651
		652	#if EV_MULTIPLICITY
		653	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		654	#endif
		655
		656	--signum;
		657
		658	if (signum < 0 \|\| signum >= signalmax)
		659	return;
		660
		661	signals [signum].gotsig = 0;
		662
		663	for (w = signals [signum].head; w; w = w->next)
		664	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		665	}
		666
443	static void	667	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	669	{
446	struct ev_watcher_list *w;
447	int signum;	670	int signum;
448		671
449	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
450	gotsig = 0;	673	gotsig = 0;
451		674
452	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
454	{	677	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;	678	}
456		679
457	for (w = signals [signum].head; w; w = w->next)	680	static void
458	event (EV_A_ (W)w, EV_SIGNAL);	681	fd_intern (int fd)
459	}	682	{
		683	#ifdef _WIN32
		684	int arg = 1;
		685	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		686	#else
		687	fcntl (fd, F_SETFD, FD_CLOEXEC);
		688	fcntl (fd, F_SETFL, O_NONBLOCK);
		689	#endif
460	}	690	}
461		691
462	static void	692	static void
463	siginit (EV_P)	693	siginit (EV_P)
464	{	694	{
465	#ifndef WIN32	695	fd_intern (sigpipe [0]);
466	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	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		697
474	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
475	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	701	}
478		702
479	/*****************************************************************************/	703	/*****************************************************************************/
480		704
		705	static struct ev_child *childs [PID_HASHSIZE];
		706
481	#ifndef WIN32	707	#ifndef _WIN32
		708
		709	static struct ev_signal childev;
482		710
483	#ifndef WCONTINUED	711	#ifndef WCONTINUED
484	# define WCONTINUED 0	712	# define WCONTINUED 0
485	#endif	713	#endif
486		714
…		…
490	struct ev_child *w;	718	struct ev_child *w;
491		719
492	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	720	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)	721	if (w->pid == pid \|\| !w->pid)
494	{	722	{
495	w->priority = sw->priority; /* need to do it now */	723	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	724	w->rpid = pid;
497	w->rstatus = status;	725	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	726	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	727	}
500	}	728	}
501		729
502	static void	730	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	731	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	733	int pid, status;
506		734
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	735	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	736	{
509	/* make sure we are called again until all childs have been reaped */	737	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	738	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		739
512	child_reap (EV_A_ sw, pid, pid, status);	740	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 */	741	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	742	}
515	}	743	}
516		744
517	#endif	745	#endif
518		746
519	/*****************************************************************************/	747	/*****************************************************************************/
520		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
521	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
522	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
523	#endif	754	#endif
524	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	756	# include "ev_epoll.c"
526	#endif	757	#endif
527	#if EV_USEV_POLL	758	#if EV_USE_POLL
528	# include "ev_poll.c"	759	# include "ev_poll.c"
529	#endif	760	#endif
530	#if EV_USE_SELECT	761	#if EV_USE_SELECT
531	# include "ev_select.c"	762	# include "ev_select.c"
532	#endif	763	#endif
…		…
545		776
546	/* return true if we are running with elevated privileges and should ignore env variables */	777	/* return true if we are running with elevated privileges and should ignore env variables */
547	static int	778	static int
548	enable_secure (void)	779	enable_secure (void)
549	{	780	{
550	#ifdef WIN32	781	#ifdef _WIN32
551	return 0;	782	return 0;
552	#else	783	#else
553	return getuid () != geteuid ()	784	return getuid () != geteuid ()
554	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
555	#endif	786	#endif
556	}	787	}
557		788
558	int	789	unsigned int
559	ev_method (EV_P)	790	ev_method (EV_P)
560	{	791	{
561	return method;	792	return method;
562	}	793	}
563		794
564	static void	795	static void
565	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
566	{	797	{
567	if (!method)	798	if (!method)
568	{	799	{
569	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
570	{	801	{
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	804	have_monotonic = 1;
574	}	805	}
575	#endif	806	#endif
576		807
577	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	809	mn_now = get_clock ();
579	now_floor = mn_now;	810	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
581		812
582	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV)
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))	814	&& !enable_secure ()
		815	&& getenv ("LIBEV_FLAGS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	816	flags = atoi (getenv ("LIBEV_FLAGS"));
		817
		818	if (!(flags & EVMETHOD_ALL))
585	else	819	{
586	methods = EVMETHOD_ANY;	820	flags \|= EVMETHOD_ALL;
		821	#if EV_USE_KQUEUE && !defined (__NetBSD__)
		822	/* kqueue is borked on everything but netbsd apparently */
		823	/* it usually doesn't work correctly on anything but sockets and pipes */
		824	flags &= ~EVMETHOD_KQUEUE;
		825	#endif
		826	}
587		827
588	method = 0;	828	method = 0;
		829	#if EV_USE_PORT
		830	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		831	#endif
589	#if EV_USE_KQUEUE	832	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
591	#endif	834	#endif
592	#if EV_USE_EPOLL	835	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	836	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
594	#endif	837	#endif
595	#if EV_USEV_POLL	838	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	839	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
597	#endif	840	#endif
598	#if EV_USE_SELECT	841	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	842	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
600	#endif	843	#endif
601	}
602	}
603		844
604	void	845	ev_init (&sigev, sigcb);
		846	ev_set_priority (&sigev, EV_MAXPRI);
		847	}
		848	}
		849
		850	static void
605	loop_destroy (EV_P)	851	loop_destroy (EV_P)
606	{	852	{
		853	int i;
		854
		855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		857	#endif
607	#if EV_USE_KQUEUE	858	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	859	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	860	#endif
610	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	863	#endif
613	#if EV_USEV_POLL	864	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	865	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	866	#endif
616	#if EV_USE_SELECT	867	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	868	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	869	#endif
619		870
		871	for (i = NUMPRI; i--; )
		872	array_free (pending, [i]);
		873
		874	/* have to use the microsoft-never-gets-it-right macro */
		875	array_free (fdchange, EMPTY0);
		876	array_free (timer, EMPTY0);
		877	#if EV_PERIODICS
		878	array_free (periodic, EMPTY0);
		879	#endif
		880	array_free (idle, EMPTY0);
		881	array_free (prepare, EMPTY0);
		882	array_free (check, EMPTY0);
		883
620	method = 0;	884	method = 0;
621	/TODO/
622	}	885	}
623		886
624	void	887	static void
625	loop_fork (EV_P)	888	loop_fork (EV_P)
626	{	889	{
627	/TODO/	890	#if EV_USE_PORT
		891	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		892	#endif
		893	#if EV_USE_KQUEUE
		894	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		895	#endif
628	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	897	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	898	#endif
631	#if EV_USE_KQUEUE	899
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	900	if (ev_is_active (&sigev))
633	#endif	901	{
		902	/* default loop */
		903
		904	ev_ref (EV_A);
		905	ev_io_stop (EV_A_ &sigev);
		906	close (sigpipe [0]);
		907	close (sigpipe [1]);
		908
		909	while (pipe (sigpipe))
		910	syserr ("(libev) error creating pipe");
		911
		912	siginit (EV_A);
		913	}
		914
		915	postfork = 0;
634	}	916	}
635		917
636	#if EV_MULTIPLICITY	918	#if EV_MULTIPLICITY
637	struct ev_loop *	919	struct ev_loop *
638	ev_loop_new (int methods)	920	ev_loop_new (unsigned int flags)
639	{	921	{
640	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	922	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
641		923
		924	memset (loop, 0, sizeof (struct ev_loop));
		925
642	loop_init (EV_A_ methods);	926	loop_init (EV_A_ flags);
643		927
644	if (ev_methods (EV_A))	928	if (ev_method (EV_A))
645	return loop;	929	return loop;
646		930
647	return 0;	931	return 0;
648	}	932	}
649		933
650	void	934	void
651	ev_loop_destroy (EV_P)	935	ev_loop_destroy (EV_P)
652	{	936	{
653	loop_destroy (EV_A);	937	loop_destroy (EV_A);
654	free (loop);	938	ev_free (loop);
655	}	939	}
656		940
657	void	941	void
658	ev_loop_fork (EV_P)	942	ev_loop_fork (EV_P)
659	{	943	{
660	loop_fork (EV_A);	944	postfork = 1;
661	}	945	}
662		946
663	#endif	947	#endif
664		948
665	#if EV_MULTIPLICITY	949	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	950	struct ev_loop *
		951	ev_default_loop_init (unsigned int flags)
670	#else	952	#else
671	static int default_loop;
672
673	int	953	int
		954	ev_default_loop (unsigned int flags)
674	#endif	955	#endif
675	ev_default_loop (int methods)
676	{	956	{
677	if (sigpipe [0] == sigpipe [1])	957	if (sigpipe [0] == sigpipe [1])
678	if (pipe (sigpipe))	958	if (pipe (sigpipe))
679	return 0;	959	return 0;
680		960
681	if (!default_loop)	961	if (!ev_default_loop_ptr)
682	{	962	{
683	#if EV_MULTIPLICITY	963	#if EV_MULTIPLICITY
684	struct ev_loop *loop = default_loop = &default_loop_struct;	964	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
685	#else	965	#else
686	default_loop = 1;	966	ev_default_loop_ptr = 1;
687	#endif	967	#endif
688		968
689	loop_init (EV_A_ methods);	969	loop_init (EV_A_ flags);
690		970
691	if (ev_method (EV_A))	971	if (ev_method (EV_A))
692	{	972	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	973	siginit (EV_A);
696		974
697	#ifndef WIN32	975	#ifndef _WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	976	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	977	ev_set_priority (&childev, EV_MAXPRI);
700	ev_signal_start (EV_A_ &childev);	978	ev_signal_start (EV_A_ &childev);
701	ev_unref (EV_A); /* child watcher should not keep loop alive */	979	ev_unref (EV_A); /* child watcher should not keep loop alive */
702	#endif	980	#endif
703	}	981	}
704	else	982	else
705	default_loop = 0;	983	ev_default_loop_ptr = 0;
706	}	984	}
707		985
708	return default_loop;	986	return ev_default_loop_ptr;
709	}	987	}
710		988
711	void	989	void
712	ev_default_destroy (void)	990	ev_default_destroy (void)
713	{	991	{
714	#if EV_MULTIPLICITY	992	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	993	struct ev_loop *loop = ev_default_loop_ptr;
716	#endif	994	#endif
717		995
		996	#ifndef _WIN32
718	ev_ref (EV_A); /* child watcher */	997	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	998	ev_signal_stop (EV_A_ &childev);
		999	#endif
720		1000
721	ev_ref (EV_A); /* signal watcher */	1001	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	1002	ev_io_stop (EV_A_ &sigev);
723		1003
724	close (sigpipe [0]); sigpipe [0] = 0;	1004	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		1006
727	loop_destroy (EV_A);	1007	loop_destroy (EV_A);
728	}	1008	}
729		1009
730	void	1010	void
731	ev_default_fork (EV_P)	1011	ev_default_fork (void)
732	{	1012	{
733	loop_fork (EV_A);	1013	#if EV_MULTIPLICITY
		1014	struct ev_loop *loop = ev_default_loop_ptr;
		1015	#endif
734		1016
735	ev_io_stop (EV_A_ &sigev);	1017	if (method)
736	close (sigpipe [0]);	1018	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	1019	}
743		1020
744	/*****************************************************************************/	1021	/*****************************************************************************/
745		1022
746	static void	1023	static int
		1024	any_pending (EV_P)
		1025	{
		1026	int pri;
		1027
		1028	for (pri = NUMPRI; pri--; )
		1029	if (pendingcnt [pri])
		1030	return 1;
		1031
		1032	return 0;
		1033	}
		1034
		1035	inline void
747	call_pending (EV_P)	1036	call_pending (EV_P)
748	{	1037	{
749	int pri;	1038	int pri;
750		1039
751	for (pri = NUMPRI; pri--; )	1040	for (pri = NUMPRI; pri--; )
752	while (pendingcnt [pri])	1041	while (pendingcnt [pri])
753	{	1042	{
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1043	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		1044
756	if (p->w)	1045	if (expect_true (p->w))
757	{	1046	{
758	p->w->pending = 0;	1047	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	1048	EV_CB_INVOKE (p->w, p->events);
760	}	1049	}
761	}	1050	}
762	}	1051	}
763		1052
764	static void	1053	inline void
765	timers_reify (EV_P)	1054	timers_reify (EV_P)
766	{	1055	{
767	while (timercnt && timers [0]->at <= mn_now)	1056	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	1057	{
769	struct ev_timer *w = timers [0];	1058	struct ev_timer *w = timers [0];
		1059
		1060	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		1061
771	/* first reschedule or stop timer */	1062	/* first reschedule or stop timer */
772	if (w->repeat)	1063	if (w->repeat)
773	{	1064	{
774	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1065	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1066
775	w->at = mn_now + w->repeat;	1067	((WT)w)->at += w->repeat;
		1068	if (((WT)w)->at < mn_now)
		1069	((WT)w)->at = mn_now;
		1070
776	downheap ((WT *)timers, timercnt, 0);	1071	downheap ((WT *)timers, timercnt, 0);
777	}	1072	}
778	else	1073	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1074	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1075
781	event (EV_A_ (W)w, EV_TIMEOUT);	1076	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1077	}
783	}	1078	}
784		1079
785	static void	1080	#if EV_PERIODICS
		1081	inline void
786	periodics_reify (EV_P)	1082	periodics_reify (EV_P)
787	{	1083	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1084	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1085	{
790	struct ev_periodic *w = periodics [0];	1086	struct ev_periodic *w = periodics [0];
791		1087
		1088	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1089
792	/* first reschedule or stop timer */	1090	/* first reschedule or stop timer */
793	if (w->interval)	1091	if (w->reschedule_cb)
794	{	1092	{
		1093	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1094	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1095	downheap ((WT *)periodics, periodiccnt, 0);
		1096	}
		1097	else if (w->interval)
		1098	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1099	((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));	1100	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);	1101	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1102	}
799	else	1103	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1104	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1105
802	event (EV_A_ (W)w, EV_PERIODIC);	1106	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1107	}
804	}	1108	}
805		1109
806	static void	1110	static void
807	periodics_reschedule (EV_P)	1111	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1115	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1116	for (i = 0; i < periodiccnt; ++i)
813	{	1117	{
814	struct ev_periodic *w = periodics [i];	1118	struct ev_periodic *w = periodics [i];
815		1119
		1120	if (w->reschedule_cb)
		1121	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1122	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1123	((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	}	1124	}
		1125
		1126	/* now rebuild the heap */
		1127	for (i = periodiccnt >> 1; i--; )
		1128	downheap ((WT *)periodics, periodiccnt, i);
829	}	1129	}
		1130	#endif
830		1131
831	inline int	1132	inline int
832	time_update_monotonic (EV_P)	1133	time_update_monotonic (EV_P)
833	{	1134	{
834	mn_now = get_clock ();	1135	mn_now = get_clock ();
835		1136
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1137	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1138	{
838	rt_now = rtmn_diff + mn_now;	1139	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1140	return 0;
840	}	1141	}
841	else	1142	else
842	{	1143	{
843	now_floor = mn_now;	1144	now_floor = mn_now;
844	rt_now = ev_time ();	1145	ev_rt_now = ev_time ();
845	return 1;	1146	return 1;
846	}	1147	}
847	}	1148	}
848		1149
849	static void	1150	inline void
850	time_update (EV_P)	1151	time_update (EV_P)
851	{	1152	{
852	int i;	1153	int i;
853		1154
854	#if EV_USE_MONOTONIC	1155	#if EV_USE_MONOTONIC
…		…
858	{	1159	{
859	ev_tstamp odiff = rtmn_diff;	1160	ev_tstamp odiff = rtmn_diff;
860		1161
861	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1162	for (i = 4; --i; ) /* loop a few times, before making important decisions */
862	{	1163	{
863	rtmn_diff = rt_now - mn_now;	1164	rtmn_diff = ev_rt_now - mn_now;
864		1165
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1166	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1167	return; /* all is well */
867		1168
868	rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1170	mn_now = get_clock ();
870	now_floor = mn_now;	1171	now_floor = mn_now;
871	}	1172	}
872		1173
		1174	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1175	periodics_reschedule (EV_A);
		1176	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1177	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1178	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1179	}
877	}	1180	}
878	else	1181	else
879	#endif	1182	#endif
880	{	1183	{
881	rt_now = ev_time ();	1184	ev_rt_now = ev_time ();
882		1185
883	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1186	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884	{	1187	{
		1188	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1189	periodics_reschedule (EV_A);
		1190	#endif
886		1191
887	/* adjust timers. this is easy, as the offset is the same for all */	1192	/* adjust timers. this is easy, as the offset is the same for all */
888	for (i = 0; i < timercnt; ++i)	1193	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1194	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1195	}
891		1196
892	mn_now = rt_now;	1197	mn_now = ev_rt_now;
893	}	1198	}
894	}	1199	}
895		1200
896	void	1201	void
897	ev_ref (EV_P)	1202	ev_ref (EV_P)
…		…
911	ev_loop (EV_P_ int flags)	1216	ev_loop (EV_P_ int flags)
912	{	1217	{
913	double block;	1218	double block;
914	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1219	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
915		1220
916	do	1221	while (activecnt)
917	{	1222	{
918	/* queue check watchers (and execute them) */	1223	/* queue check watchers (and execute them) */
919	if (expect_false (preparecnt))	1224	if (expect_false (preparecnt))
920	{	1225	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1226	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1227	call_pending (EV_A);
923	}	1228	}
924		1229
		1230	/* we might have forked, so reify kernel state if necessary */
		1231	if (expect_false (postfork))
		1232	loop_fork (EV_A);
		1233
925	/* update fd-related kernel structures */	1234	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1235	fd_reify (EV_A);
927		1236
928	/* calculate blocking time */	1237	/* calculate blocking time */
929		1238
930	/* we only need this for !monotonic clockor timers, but as we basically	1239	/* we only need this for !monotonic clock or timers, but as we basically
931	always have timers, we just calculate it always */	1240	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1241	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1242	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1243	time_update_monotonic (EV_A);
935	else	1244	else
936	#endif	1245	#endif
937	{	1246	{
938	rt_now = ev_time ();	1247	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1248	mn_now = ev_rt_now;
940	}	1249	}
941		1250
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1251	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1252	block = 0.;
944	else	1253	else
945	{	1254	{
946	block = MAX_BLOCKTIME;	1255	block = MAX_BLOCKTIME;
947		1256
948	if (timercnt)	1257	if (timercnt)
949	{	1258	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1259	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1260	if (block > to) block = to;
952	}	1261	}
953		1262
		1263	#if EV_PERIODICS
954	if (periodiccnt)	1264	if (periodiccnt)
955	{	1265	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1266	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1267	if (block > to) block = to;
958	}	1268	}
		1269	#endif
959		1270
960	if (block < 0.) block = 0.;	1271	if (expect_false (block < 0.)) block = 0.;
961	}	1272	}
962		1273
963	method_poll (EV_A_ block);	1274	method_poll (EV_A_ block);
964		1275
965	/* update rt_now, do magic */	1276	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1277	time_update (EV_A);
967		1278
968	/* queue pending timers and reschedule them */	1279	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1280	timers_reify (EV_A); /* relative timers called last */
		1281	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1282	periodics_reify (EV_A); /* absolute timers called first */
		1283	#endif
971		1284
972	/* queue idle watchers unless io or timers are pending */	1285	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1286	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1287	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1288
976	/* queue check watchers, to be executed first */	1289	/* queue check watchers, to be executed first */
977	if (checkcnt)	1290	if (expect_false (checkcnt))
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1291	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
979		1292
980	call_pending (EV_A);	1293	call_pending (EV_A);
		1294
		1295	if (expect_false (loop_done))
		1296	break;
981	}	1297	}
982	while (activecnt && !loop_done);
983		1298
984	if (loop_done != 2)	1299	if (loop_done != 2)
985	loop_done = 0;	1300	loop_done = 0;
986	}	1301	}
987		1302
…		…
1047	void	1362	void
1048	ev_io_start (EV_P_ struct ev_io *w)	1363	ev_io_start (EV_P_ struct ev_io *w)
1049	{	1364	{
1050	int fd = w->fd;	1365	int fd = w->fd;
1051		1366
1052	if (ev_is_active (w))	1367	if (expect_false (ev_is_active (w)))
1053	return;	1368	return;
1054		1369
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1370	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1371
1057	ev_start (EV_A_ (W)w, 1);	1372	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1373	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1374	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1375
1061	fd_change (EV_A_ fd);	1376	fd_change (EV_A_ fd);
1062	}	1377	}
1063		1378
1064	void	1379	void
1065	ev_io_stop (EV_P_ struct ev_io *w)	1380	ev_io_stop (EV_P_ struct ev_io *w)
1066	{	1381	{
1067	ev_clear_pending (EV_A_ (W)w);	1382	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1383	if (expect_false (!ev_is_active (w)))
1069	return;	1384	return;
		1385
		1386	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1070		1387
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1388	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1389	ev_stop (EV_A_ (W)w);
1073		1390
1074	fd_change (EV_A_ w->fd);	1391	fd_change (EV_A_ w->fd);
1075	}	1392	}
1076		1393
1077	void	1394	void
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1395	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1396	{
1080	if (ev_is_active (w))	1397	if (expect_false (ev_is_active (w)))
1081	return;	1398	return;
1082		1399
1083	w->at += mn_now;	1400	((WT)w)->at += mn_now;
1084		1401
1085	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1402	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086		1403
1087	ev_start (EV_A_ (W)w, ++timercnt);	1404	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1405	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1089	timers [timercnt - 1] = w;	1406	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1407	upheap ((WT *)timers, timercnt - 1);
		1408
		1409	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1410	}
1092		1411
1093	void	1412	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1413	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1414	{
1096	ev_clear_pending (EV_A_ (W)w);	1415	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1416	if (expect_false (!ev_is_active (w)))
1098	return;	1417	return;
1099		1418
		1419	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1420
1100	if (w->active < timercnt--)	1421	if (expect_true (((W)w)->active < timercnt--))
1101	{	1422	{
1102	timers [w->active - 1] = timers [timercnt];	1423	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1424	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1425	}
1105		1426
1106	w->at = w->repeat;	1427	((WT)w)->at -= mn_now;
1107		1428
1108	ev_stop (EV_A_ (W)w);	1429	ev_stop (EV_A_ (W)w);
1109	}	1430	}
1110		1431
1111	void	1432	void
…		…
1113	{	1434	{
1114	if (ev_is_active (w))	1435	if (ev_is_active (w))
1115	{	1436	{
1116	if (w->repeat)	1437	if (w->repeat)
1117	{	1438	{
1118	w->at = mn_now + w->repeat;	1439	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1440	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1441	}
1121	else	1442	else
1122	ev_timer_stop (EV_A_ w);	1443	ev_timer_stop (EV_A_ w);
1123	}	1444	}
1124	else if (w->repeat)	1445	else if (w->repeat)
		1446	{
		1447	w->at = w->repeat;
1125	ev_timer_start (EV_A_ w);	1448	ev_timer_start (EV_A_ w);
		1449	}
1126	}	1450	}
1127		1451
		1452	#if EV_PERIODICS
1128	void	1453	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1454	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1455	{
1131	if (ev_is_active (w))	1456	if (expect_false (ev_is_active (w)))
1132	return;	1457	return;
1133		1458
		1459	if (w->reschedule_cb)
		1460	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1461	else if (w->interval)
		1462	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1463	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 */	1464	/* 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;	1465	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1466	}
1139		1467
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1468	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1469	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1142	periodics [periodiccnt - 1] = w;	1470	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1471	upheap ((WT *)periodics, periodiccnt - 1);
		1472
		1473	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1474	}
1145		1475
1146	void	1476	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1477	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1478	{
1149	ev_clear_pending (EV_A_ (W)w);	1479	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1480	if (expect_false (!ev_is_active (w)))
1151	return;	1481	return;
1152		1482
		1483	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1484
1153	if (w->active < periodiccnt--)	1485	if (expect_true (((W)w)->active < periodiccnt--))
1154	{	1486	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1487	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1488	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1489	}
1158		1490
1159	ev_stop (EV_A_ (W)w);	1491	ev_stop (EV_A_ (W)w);
1160	}	1492	}
1161		1493
1162	void	1494	void
		1495	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1496	{
		1497	/* TODO: use adjustheap and recalculation */
		1498	ev_periodic_stop (EV_A_ w);
		1499	ev_periodic_start (EV_A_ w);
		1500	}
		1501	#endif
		1502
		1503	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1504	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1505	{
1165	if (ev_is_active (w))	1506	if (expect_false (ev_is_active (w)))
1166	return;	1507	return;
1167		1508
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1509	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1510	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1170	idles [idlecnt - 1] = w;	1511	idles [idlecnt - 1] = w;
1171	}	1512	}
1172		1513
1173	void	1514	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1515	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1516	{
1176	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1178	return;	1519	return;
1179		1520
1180	idles [w->active - 1] = idles [--idlecnt];	1521	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1522	ev_stop (EV_A_ (W)w);
1182	}	1523	}
1183		1524
1184	void	1525	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1526	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1527	{
1187	if (ev_is_active (w))	1528	if (expect_false (ev_is_active (w)))
1188	return;	1529	return;
1189		1530
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1531	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1532	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1192	prepares [preparecnt - 1] = w;	1533	prepares [preparecnt - 1] = w;
1193	}	1534	}
1194		1535
1195	void	1536	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1537	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1538	{
1198	ev_clear_pending (EV_A_ (W)w);	1539	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1540	if (expect_false (!ev_is_active (w)))
1200	return;	1541	return;
1201		1542
1202	prepares [w->active - 1] = prepares [--preparecnt];	1543	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1544	ev_stop (EV_A_ (W)w);
1204	}	1545	}
1205		1546
1206	void	1547	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1548	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1549	{
1209	if (ev_is_active (w))	1550	if (expect_false (ev_is_active (w)))
1210	return;	1551	return;
1211		1552
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1553	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1554	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1214	checks [checkcnt - 1] = w;	1555	checks [checkcnt - 1] = w;
1215	}	1556	}
1216		1557
1217	void	1558	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1559	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1560	{
1220	ev_clear_pending (EV_A_ (W)w);	1561	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1562	if (expect_false (!ev_is_active (w)))
1222	return;	1563	return;
1223		1564
1224	checks [w->active - 1] = checks [--checkcnt];	1565	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1566	ev_stop (EV_A_ (W)w);
1226	}	1567	}
1227		1568
1228	#ifndef SA_RESTART	1569	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1570	# define SA_RESTART 0
…		…
1231		1572
1232	void	1573	void
1233	ev_signal_start (EV_P_ struct ev_signal *w)	1574	ev_signal_start (EV_P_ struct ev_signal *w)
1234	{	1575	{
1235	#if EV_MULTIPLICITY	1576	#if EV_MULTIPLICITY
1236	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1577	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1237	#endif	1578	#endif
1238	if (ev_is_active (w))	1579	if (expect_false (ev_is_active (w)))
1239	return;	1580	return;
1240		1581
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1582	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1583
1243	ev_start (EV_A_ (W)w, 1);	1584	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1585	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1586	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1587
1247	if (!w->next)	1588	if (!((WL)w)->next)
1248	{	1589	{
		1590	#if _WIN32
		1591	signal (w->signum, sighandler);
		1592	#else
1249	struct sigaction sa;	1593	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1594	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1595	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1596	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1597	sigaction (w->signum, &sa, 0);
		1598	#endif
1254	}	1599	}
1255	}	1600	}
1256		1601
1257	void	1602	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1603	ev_signal_stop (EV_P_ struct ev_signal *w)
1259	{	1604	{
1260	ev_clear_pending (EV_A_ (W)w);	1605	ev_clear_pending (EV_A_ (W)w);
1261	if (!ev_is_active (w))	1606	if (expect_false (!ev_is_active (w)))
1262	return;	1607	return;
1263		1608
1264	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1609	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1265	ev_stop (EV_A_ (W)w);	1610	ev_stop (EV_A_ (W)w);
1266		1611
…		…
1270		1615
1271	void	1616	void
1272	ev_child_start (EV_P_ struct ev_child *w)	1617	ev_child_start (EV_P_ struct ev_child *w)
1273	{	1618	{
1274	#if EV_MULTIPLICITY	1619	#if EV_MULTIPLICITY
1275	assert (("child watchers are only supported in the default loop", loop == default_loop));	1620	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1276	#endif	1621	#endif
1277	if (ev_is_active (w))	1622	if (expect_false (ev_is_active (w)))
1278	return;	1623	return;
1279		1624
1280	ev_start (EV_A_ (W)w, 1);	1625	ev_start (EV_A_ (W)w, 1);
1281	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1626	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1282	}	1627	}
1283		1628
1284	void	1629	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1630	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1631	{
1287	ev_clear_pending (EV_A_ (W)w);	1632	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1633	if (expect_false (!ev_is_active (w)))
1289	return;	1634	return;
1290		1635
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1636	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1637	ev_stop (EV_A_ (W)w);
1293	}	1638	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1653	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1654	void *arg = once->arg;
1310		1655
1311	ev_io_stop (EV_A_ &once->io);	1656	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1657	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1658	ev_free (once);
1314		1659
1315	cb (revents, arg);	1660	cb (revents, arg);
1316	}	1661	}
1317		1662
1318	static void	1663	static void
…		…
1328	}	1673	}
1329		1674
1330	void	1675	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1676	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1332	{	1677	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1678	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1679
1335	if (!once)	1680	if (expect_false (!once))
		1681	{
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1682	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1683	return;
1338	{	1684	}
		1685
1339	once->cb = cb;	1686	once->cb = cb;
1340	once->arg = arg;	1687	once->arg = arg;
1341		1688
1342	ev_watcher_init (&once->io, once_cb_io);	1689	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1690	if (fd >= 0)
1344	{	1691	{
1345	ev_io_set (&once->io, fd, events);	1692	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1693	ev_io_start (EV_A_ &once->io);
1347	}	1694	}
1348		1695
1349	ev_watcher_init (&once->to, once_cb_to);	1696	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1697	if (timeout >= 0.)
1351	{	1698	{
1352	ev_timer_set (&once->to, timeout, 0.);	1699	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1700	ev_timer_start (EV_A_ &once->to);
1354	}
1355	}	1701	}
1356	}	1702	}
1357		1703
		1704	#ifdef __cplusplus
		1705	}
		1706	#endif
		1707

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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 1.128 by root, Thu Nov 22 12:28:27 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 1.128 by root, Thu Nov 22 12:28:27 2007 UTC