[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 1.129 by root, Fri Nov 23 05:00:44 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	/**/
80		158
81	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
86	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
89	#endif	167	#endif
90		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
91	/**/	173	/**/
92		174
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#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) */	176	#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 */	177	#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 */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
97		179
98	#ifndef EV_EMBED	180	#ifdef EV_H
		181	# include EV_H
		182	#else
99	# include "ev.h"	183	# include "ev.h"
100	#endif	184	#endif
101		185
102	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
104	# define inline inline	188	# define inline static inline
105	#else	189	#else
106	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
107	# define inline static	191	# define inline static
108	#endif	192	#endif
109		193
…		…
111	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
112		196
113	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
116	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
117	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
119		206
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		208
		209	#ifdef _WIN32
		210	# include "ev_win32.c"
		211	#endif
		212
122	/*****************************************************************************/	213	/*****************************************************************************/
123		214
		215	static void (syserr_cb)(const char msg);
		216
		217	void ev_set_syserr_cb (void (cb)(const char msg))
		218	{
		219	syserr_cb = cb;
		220	}
		221
		222	static void
		223	syserr (const char *msg)
		224	{
		225	if (!msg)
		226	msg = "(libev) system error";
		227
		228	if (syserr_cb)
		229	syserr_cb (msg);
		230	else
		231	{
		232	perror (msg);
		233	abort ();
		234	}
		235	}
		236
		237	static void (alloc)(void *ptr, long size);
		238
		239	void ev_set_allocator (void (cb)(void *ptr, long size))
		240	{
		241	alloc = cb;
		242	}
		243
		244	static void *
		245	ev_realloc (void *ptr, long size)
		246	{
		247	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		248
		249	if (!ptr && size)
		250	{
		251	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		252	abort ();
		253	}
		254
		255	return ptr;
		256	}
		257
		258	#define ev_malloc(size) ev_realloc (0, (size))
		259	#define ev_free(ptr) ev_realloc ((ptr), 0)
		260
		261	/*****************************************************************************/
		262
124	typedef struct	263	typedef struct
125	{	264	{
126	struct ev_watcher_list *head;	265	WL head;
127	unsigned char events;	266	unsigned char events;
128	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
129	} ANFD;	271	} ANFD;
130		272
131	typedef struct	273	typedef struct
132	{	274	{
133	W w;	275	W w;
134	int events;	276	int events;
135	} ANPENDING;	277	} ANPENDING;
136		278
137	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
138		280
139	struct ev_loop	281	struct ev_loop
140	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	286	#include "ev_vars.h"
143	};
144	# undef VAR	287	#undef VAR
		288	};
145	# include "ev_wrap.h"	289	#include "ev_wrap.h"
		290
		291	static struct ev_loop default_loop_struct;
		292	struct ev_loop *ev_default_loop_ptr;
146		293
147	#else	294	#else
148		295
		296	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	298	#include "ev_vars.h"
151	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
152		302
153	#endif	303	#endif
154		304
155	/*****************************************************************************/	305	/*****************************************************************************/
156		306
157	inline ev_tstamp	307	ev_tstamp
158	ev_time (void)	308	ev_time (void)
159	{	309	{
160	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
161	struct timespec ts;	311	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	331	#endif
182		332
183	return ev_time ();	333	return ev_time ();
184	}	334	}
185		335
		336	#if EV_MULTIPLICITY
186	ev_tstamp	337	ev_tstamp
187	ev_now (EV_P)	338	ev_now (EV_P)
188	{	339	{
189	return rt_now;	340	return ev_rt_now;
190	}	341	}
		342	#endif
191		343
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
193		345
194	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
196	{ \	348	{ \
197	int newcnt = cur; \	349	int newcnt = cur; \
198	do \	350	do \
199	{ \	351	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	353	} \
202	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
203	\	355	\
204	base = realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	358	cur = newcnt; \
207	}	359	}
		360
		361	#define array_slim(type,stem) \
		362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		363	{ \
		364	stem ## max = array_roundsize (stem ## cnt >> 1); \
		365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		367	}
		368
		369	#define array_free(stem, idx) \
		370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		371
209	/*****************************************************************************/	372	/*****************************************************************************/
210		373
211	static void	374	static void
212	anfds_init (ANFD *base, int count)	375	anfds_init (ANFD *base, int count)
…		…
219		382
220	++base;	383	++base;
221	}	384	}
222	}	385	}
223		386
224	static void	387	void
225	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
226	{	389	{
227	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
228	{	393	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	395	return;
231	}	396	}
232		397
233	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	402	}
238		403
239	static void	404	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	406	{
242	int i;	407	int i;
243		408
244	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
246	}	411	}
247		412
248	static void	413	inline void
249	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
250	{	415	{
251	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	417	struct ev_io *w;
253		418
254	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	419	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	{	420	{
256	int ev = w->events & events;	421	int ev = w->events & revents;
257		422
258	if (ev)	423	if (ev)
259	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
260	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
261	}	432	}
262		433
263	/*****************************************************************************/	434	/*****************************************************************************/
264		435
265	static void	436	inline void
266	fd_reify (EV_P)	437	fd_reify (EV_P)
267	{	438	{
268	int i;	439	int i;
269		440
270	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
276	int events = 0;	447	int events = 0;
277		448
278	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
279	events \|= w->events;	450	events \|= w->events;
280		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
281	anfd->reify = 0;	461	anfd->reify = 0;
282		462
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	463	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	464	anfd->events = events;
287	}
288	}	465	}
289		466
290	fdchangecnt = 0;	467	fdchangecnt = 0;
291	}	468	}
292		469
293	static void	470	static void
294	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
295	{	472	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
297	return;	474	return;
298		475
299	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
300		477
301	++fdchangecnt;	478	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
303	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
304	}	481	}
305		482
306	static void	483	static void
307	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	486	struct ev_io *w;
310		487
311	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
312	{	489	{
313	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
315	}	492	}
		493	}
		494
		495	inline int
		496	fd_valid (int fd)
		497	{
		498	#ifdef _WIN32
		499	return _get_osfhandle (fd) != -1;
		500	#else
		501	return fcntl (fd, F_GETFD) != -1;
		502	#endif
316	}	503	}
317		504
318	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
319	static void	506	static void
320	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
321	{	508	{
322	int fd;	509	int fd;
323		510
324	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	512	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
328	}	515	}
329		516
330	/* called on ENOMEM in select/poll to kill some fds and retry */	517	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	518	static void
332	fd_enomem (EV_P)	519	fd_enomem (EV_P)
333	{	520	{
334	int fd = anfdmax;	521	int fd;
335		522
336	while (fd--)	523	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	524	if (anfds [fd].events)
338	{	525	{
339	close (fd);
340	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
341	return;	527	return;
342	}	528	}
343	}	529	}
344		530
345	/* susually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	532	static void
347	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
348	{	534	{
349	int fd;	535	int fd;
350		536
351	/* this should be highly optimised to not do anything but set a flag */	537	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	538	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	539	if (anfds [fd].events)
354	{	540	{
355	anfds [fd].events = 0;	541	anfds [fd].events = 0;
356	fd_change (fd);	542	fd_change (EV_A_ fd);
357	}	543	}
358	}	544	}
359		545
360	/*****************************************************************************/	546	/*****************************************************************************/
361		547
…		…
365	WT w = heap [k];	551	WT w = heap [k];
366		552
367	while (k && heap [k >> 1]->at > w->at)	553	while (k && heap [k >> 1]->at > w->at)
368	{	554	{
369	heap [k] = heap [k >> 1];	555	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	556	((W)heap [k])->active = k + 1;
371	k >>= 1;	557	k >>= 1;
372	}	558	}
373		559
374	heap [k] = w;	560	heap [k] = w;
375	heap [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
376		562
377	}	563	}
378		564
379	static void	565	static void
380	downheap (WT *heap, int N, int k)	566	downheap (WT *heap, int N, int k)
…		…
390		576
391	if (w->at <= heap [j]->at)	577	if (w->at <= heap [j]->at)
392	break;	578	break;
393		579
394	heap [k] = heap [j];	580	heap [k] = heap [j];
395	heap [k]->active = k + 1;	581	((W)heap [k])->active = k + 1;
396	k = j;	582	k = j;
397	}	583	}
398		584
399	heap [k] = w;	585	heap [k] = w;
400	heap [k]->active = k + 1;	586	((W)heap [k])->active = k + 1;
		587	}
		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
401	}	594	}
402		595
403	/*****************************************************************************/	596	/*****************************************************************************/
404		597
405	typedef struct	598	typedef struct
406	{	599	{
407	struct ev_watcher_list *head;	600	WL head;
408	sig_atomic_t volatile gotsig;	601	sig_atomic_t volatile gotsig;
409	} ANSIG;	602	} ANSIG;
410		603
411	static ANSIG *signals;	604	static ANSIG *signals;
412	static int signalmax;	605	static int signalmax;
413		606
414	static int sigpipe [2];	607	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	608	static sig_atomic_t volatile gotsig;
		609	static struct ev_io sigev;
416		610
417	static void	611	static void
418	signals_init (ANSIG *base, int count)	612	signals_init (ANSIG *base, int count)
419	{	613	{
420	while (count--)	614	while (count--)
…		…
427	}	621	}
428		622
429	static void	623	static void
430	sighandler (int signum)	624	sighandler (int signum)
431	{	625	{
		626	#if _WIN32
		627	signal (signum, sighandler);
		628	#endif
		629
432	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
433		631
434	if (!gotsig)	632	if (!gotsig)
435	{	633	{
436	int old_errno = errno;	634	int old_errno = errno;
…		…
438	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
439	errno = old_errno;	637	errno = old_errno;
440	}	638	}
441	}	639	}
442		640
		641	void
		642	ev_feed_signal_event (EV_P_ int signum)
		643	{
		644	WL w;
		645
		646	#if EV_MULTIPLICITY
		647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		648	#endif
		649
		650	--signum;
		651
		652	if (signum < 0 \|\| signum >= signalmax)
		653	return;
		654
		655	signals [signum].gotsig = 0;
		656
		657	for (w = signals [signum].head; w; w = w->next)
		658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		659	}
		660
443	static void	661	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	663	{
446	struct ev_watcher_list *w;
447	int signum;	664	int signum;
448		665
449	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
450	gotsig = 0;	667	gotsig = 0;
451		668
452	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
454	{	671	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;	672	}
456		673
457	for (w = signals [signum].head; w; w = w->next)	674	static void
458	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
459	}	676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
460	}	684	}
461		685
462	static void	686	static void
463	siginit (EV_P)	687	siginit (EV_P)
464	{	688	{
465	#ifndef WIN32	689	fd_intern (sigpipe [0]);
466	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	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		691
474	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
475	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	695	}
478		696
479	/*****************************************************************************/	697	/*****************************************************************************/
480		698
		699	static struct ev_child *childs [PID_HASHSIZE];
		700
481	#ifndef WIN32	701	#ifndef _WIN32
		702
		703	static struct ev_signal childev;
482		704
483	#ifndef WCONTINUED	705	#ifndef WCONTINUED
484	# define WCONTINUED 0	706	# define WCONTINUED 0
485	#endif	707	#endif
486		708
…		…
490	struct ev_child *w;	712	struct ev_child *w;
491		713
492	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	714	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)	715	if (w->pid == pid \|\| !w->pid)
494	{	716	{
495	w->priority = sw->priority; /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	718	w->rpid = pid;
497	w->rstatus = status;	719	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	721	}
500	}	722	}
501		723
502	static void	724	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	727	int pid, status;
506		728
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	730	{
509	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	732	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		733
512	child_reap (EV_A_ sw, pid, pid, status);	734	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 */	735	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	736	}
515	}	737	}
516		738
517	#endif	739	#endif
518		740
519	/*****************************************************************************/	741	/*****************************************************************************/
520		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
521	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
522	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
523	#endif	748	#endif
524	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	750	# include "ev_epoll.c"
526	#endif	751	#endif
527	#if EV_USEV_POLL	752	#if EV_USE_POLL
528	# include "ev_poll.c"	753	# include "ev_poll.c"
529	#endif	754	#endif
530	#if EV_USE_SELECT	755	#if EV_USE_SELECT
531	# include "ev_select.c"	756	# include "ev_select.c"
532	#endif	757	#endif
…		…
545		770
546	/* return true if we are running with elevated privileges and should ignore env variables */	771	/* return true if we are running with elevated privileges and should ignore env variables */
547	static int	772	static int
548	enable_secure (void)	773	enable_secure (void)
549	{	774	{
550	#ifdef WIN32	775	#ifdef _WIN32
551	return 0;	776	return 0;
552	#else	777	#else
553	return getuid () != geteuid ()	778	return getuid () != geteuid ()
554	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
555	#endif	780	#endif
556	}	781	}
557		782
558	int	783	unsigned int
559	ev_method (EV_P)	784	ev_supported_backends (void)
560	{	785	{
561	return method;
562	}	786	}
563		787
		788	unsigned int
		789	ev_recommended_backends (void)
		790	{
		791	unsigned int flags;
		792
		793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
		794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_backend (EV_P)
		804	{
		805	unsigned int flags = ev_recommended_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
564	static void	820	static void
565	loop_init (EV_P_ int methods)	821	loop_init (EV_P_ unsigned int flags)
566	{	822	{
567	if (!method)	823	if (!method)
568	{	824	{
569	#if EV_USE_MONOTONIC	825	#if EV_USE_MONOTONIC
570	{	826	{
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	828	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	829	have_monotonic = 1;
574	}	830	}
575	#endif	831	#endif
576		832
577	rt_now = ev_time ();	833	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	834	mn_now = get_clock ();
579	now_floor = mn_now;	835	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	836	rtmn_diff = ev_rt_now - mn_now;
581		837
582	if (methods == EVMETHOD_AUTO)	838	if (!(flags & EVFLAG_NOENV)
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))	839	&& !enable_secure ()
		840	&& getenv ("LIBEV_FLAGS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	841	flags = atoi (getenv ("LIBEV_FLAGS"));
585	else	842
586	methods = EVMETHOD_ANY;	843	if (!(flags & 0x0000ffffUL))
		844	flags \|= ev_recommended_backends ();
587		845
588	method = 0;	846	method = 0;
		847	#if EV_USE_PORT
		848	if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags);
		849	#endif
589	#if EV_USE_KQUEUE	850	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	851	if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags);
591	#endif	852	#endif
592	#if EV_USE_EPOLL	853	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	854	if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags);
594	#endif	855	#endif
595	#if EV_USEV_POLL	856	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	857	if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags);
597	#endif	858	#endif
598	#if EV_USE_SELECT	859	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	860	if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags);
600	#endif	861	#endif
601	}
602	}
603		862
604	void	863	ev_init (&sigev, sigcb);
		864	ev_set_priority (&sigev, EV_MAXPRI);
		865	}
		866	}
		867
		868	static void
605	loop_destroy (EV_P)	869	loop_destroy (EV_P)
606	{	870	{
		871	int i;
		872
		873	#if EV_USE_PORT
		874	if (method == EVBACKEND_PORT ) port_destroy (EV_A);
		875	#endif
607	#if EV_USE_KQUEUE	876	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	877	if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
609	#endif	878	#endif
610	#if EV_USE_EPOLL	879	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	880	if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
612	#endif	881	#endif
613	#if EV_USEV_POLL	882	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	883	if (method == EVBACKEND_POLL ) poll_destroy (EV_A);
615	#endif	884	#endif
616	#if EV_USE_SELECT	885	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	886	if (method == EVBACKEND_SELECT) select_destroy (EV_A);
618	#endif	887	#endif
		888
		889	for (i = NUMPRI; i--; )
		890	array_free (pending, [i]);
		891
		892	/* have to use the microsoft-never-gets-it-right macro */
		893	array_free (fdchange, EMPTY0);
		894	array_free (timer, EMPTY0);
		895	#if EV_PERIODICS
		896	array_free (periodic, EMPTY0);
		897	#endif
		898	array_free (idle, EMPTY0);
		899	array_free (prepare, EMPTY0);
		900	array_free (check, EMPTY0);
619		901
620	method = 0;	902	method = 0;
621	/TODO/
622	}	903	}
623		904
624	void	905	static void
625	loop_fork (EV_P)	906	loop_fork (EV_P)
626	{	907	{
627	/TODO/	908	#if EV_USE_PORT
		909	if (method == EVBACKEND_PORT ) port_fork (EV_A);
		910	#endif
		911	#if EV_USE_KQUEUE
		912	if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		913	#endif
628	#if EV_USE_EPOLL	914	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	915	if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A);
630	#endif	916	#endif
631	#if EV_USE_KQUEUE	917
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	918	if (ev_is_active (&sigev))
633	#endif	919	{
		920	/* default loop */
		921
		922	ev_ref (EV_A);
		923	ev_io_stop (EV_A_ &sigev);
		924	close (sigpipe [0]);
		925	close (sigpipe [1]);
		926
		927	while (pipe (sigpipe))
		928	syserr ("(libev) error creating pipe");
		929
		930	siginit (EV_A);
		931	}
		932
		933	postfork = 0;
634	}	934	}
635		935
636	#if EV_MULTIPLICITY	936	#if EV_MULTIPLICITY
637	struct ev_loop *	937	struct ev_loop *
638	ev_loop_new (int methods)	938	ev_loop_new (unsigned int flags)
639	{	939	{
640	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	940	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
641		941
		942	memset (loop, 0, sizeof (struct ev_loop));
		943
642	loop_init (EV_A_ methods);	944	loop_init (EV_A_ flags);
643		945
644	if (ev_methods (EV_A))	946	if (ev_method (EV_A))
645	return loop;	947	return loop;
646		948
647	return 0;	949	return 0;
648	}	950	}
649		951
650	void	952	void
651	ev_loop_destroy (EV_P)	953	ev_loop_destroy (EV_P)
652	{	954	{
653	loop_destroy (EV_A);	955	loop_destroy (EV_A);
654	free (loop);	956	ev_free (loop);
655	}	957	}
656		958
657	void	959	void
658	ev_loop_fork (EV_P)	960	ev_loop_fork (EV_P)
659	{	961	{
660	loop_fork (EV_A);	962	postfork = 1;
661	}	963	}
662		964
663	#endif	965	#endif
664		966
665	#if EV_MULTIPLICITY	967	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	968	struct ev_loop *
		969	ev_default_loop_init (unsigned int flags)
670	#else	970	#else
671	static int default_loop;
672
673	int	971	int
		972	ev_default_loop (unsigned int flags)
674	#endif	973	#endif
675	ev_default_loop (int methods)
676	{	974	{
677	if (sigpipe [0] == sigpipe [1])	975	if (sigpipe [0] == sigpipe [1])
678	if (pipe (sigpipe))	976	if (pipe (sigpipe))
679	return 0;	977	return 0;
680		978
681	if (!default_loop)	979	if (!ev_default_loop_ptr)
682	{	980	{
683	#if EV_MULTIPLICITY	981	#if EV_MULTIPLICITY
684	struct ev_loop *loop = default_loop = &default_loop_struct;	982	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
685	#else	983	#else
686	default_loop = 1;	984	ev_default_loop_ptr = 1;
687	#endif	985	#endif
688		986
689	loop_init (EV_A_ methods);	987	loop_init (EV_A_ flags);
690		988
691	if (ev_method (EV_A))	989	if (ev_method (EV_A))
692	{	990	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	991	siginit (EV_A);
696		992
697	#ifndef WIN32	993	#ifndef _WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	994	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	995	ev_set_priority (&childev, EV_MAXPRI);
700	ev_signal_start (EV_A_ &childev);	996	ev_signal_start (EV_A_ &childev);
701	ev_unref (EV_A); /* child watcher should not keep loop alive */	997	ev_unref (EV_A); /* child watcher should not keep loop alive */
702	#endif	998	#endif
703	}	999	}
704	else	1000	else
705	default_loop = 0;	1001	ev_default_loop_ptr = 0;
706	}	1002	}
707		1003
708	return default_loop;	1004	return ev_default_loop_ptr;
709	}	1005	}
710		1006
711	void	1007	void
712	ev_default_destroy (void)	1008	ev_default_destroy (void)
713	{	1009	{
714	#if EV_MULTIPLICITY	1010	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	1011	struct ev_loop *loop = ev_default_loop_ptr;
716	#endif	1012	#endif
717		1013
		1014	#ifndef _WIN32
718	ev_ref (EV_A); /* child watcher */	1015	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	1016	ev_signal_stop (EV_A_ &childev);
		1017	#endif
720		1018
721	ev_ref (EV_A); /* signal watcher */	1019	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	1020	ev_io_stop (EV_A_ &sigev);
723		1021
724	close (sigpipe [0]); sigpipe [0] = 0;	1022	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		1024
727	loop_destroy (EV_A);	1025	loop_destroy (EV_A);
728	}	1026	}
729		1027
730	void	1028	void
731	ev_default_fork (EV_P)	1029	ev_default_fork (void)
732	{	1030	{
733	loop_fork (EV_A);	1031	#if EV_MULTIPLICITY
		1032	struct ev_loop *loop = ev_default_loop_ptr;
		1033	#endif
734		1034
735	ev_io_stop (EV_A_ &sigev);	1035	if (method)
736	close (sigpipe [0]);	1036	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	1037	}
743		1038
744	/*****************************************************************************/	1039	/*****************************************************************************/
745		1040
746	static void	1041	static int
		1042	any_pending (EV_P)
		1043	{
		1044	int pri;
		1045
		1046	for (pri = NUMPRI; pri--; )
		1047	if (pendingcnt [pri])
		1048	return 1;
		1049
		1050	return 0;
		1051	}
		1052
		1053	inline void
747	call_pending (EV_P)	1054	call_pending (EV_P)
748	{	1055	{
749	int pri;	1056	int pri;
750		1057
751	for (pri = NUMPRI; pri--; )	1058	for (pri = NUMPRI; pri--; )
752	while (pendingcnt [pri])	1059	while (pendingcnt [pri])
753	{	1060	{
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1061	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		1062
756	if (p->w)	1063	if (expect_true (p->w))
757	{	1064	{
758	p->w->pending = 0;	1065	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	1066	EV_CB_INVOKE (p->w, p->events);
760	}	1067	}
761	}	1068	}
762	}	1069	}
763		1070
764	static void	1071	inline void
765	timers_reify (EV_P)	1072	timers_reify (EV_P)
766	{	1073	{
767	while (timercnt && timers [0]->at <= mn_now)	1074	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	1075	{
769	struct ev_timer *w = timers [0];	1076	struct ev_timer *w = timers [0];
		1077
		1078	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		1079
771	/* first reschedule or stop timer */	1080	/* first reschedule or stop timer */
772	if (w->repeat)	1081	if (w->repeat)
773	{	1082	{
774	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1083	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1084
775	w->at = mn_now + w->repeat;	1085	((WT)w)->at += w->repeat;
		1086	if (((WT)w)->at < mn_now)
		1087	((WT)w)->at = mn_now;
		1088
776	downheap ((WT *)timers, timercnt, 0);	1089	downheap ((WT *)timers, timercnt, 0);
777	}	1090	}
778	else	1091	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1092	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1093
781	event (EV_A_ (W)w, EV_TIMEOUT);	1094	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1095	}
783	}	1096	}
784		1097
785	static void	1098	#if EV_PERIODICS
		1099	inline void
786	periodics_reify (EV_P)	1100	periodics_reify (EV_P)
787	{	1101	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1102	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1103	{
790	struct ev_periodic *w = periodics [0];	1104	struct ev_periodic *w = periodics [0];
791		1105
		1106	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1107
792	/* first reschedule or stop timer */	1108	/* first reschedule or stop timer */
793	if (w->interval)	1109	if (w->reschedule_cb)
794	{	1110	{
		1111	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1112	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1113	downheap ((WT *)periodics, periodiccnt, 0);
		1114	}
		1115	else if (w->interval)
		1116	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1117	((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));	1118	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);	1119	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1120	}
799	else	1121	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1122	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1123
802	event (EV_A_ (W)w, EV_PERIODIC);	1124	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1125	}
804	}	1126	}
805		1127
806	static void	1128	static void
807	periodics_reschedule (EV_P)	1129	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1133	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1134	for (i = 0; i < periodiccnt; ++i)
813	{	1135	{
814	struct ev_periodic *w = periodics [i];	1136	struct ev_periodic *w = periodics [i];
815		1137
		1138	if (w->reschedule_cb)
		1139	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1140	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1141	((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	}	1142	}
		1143
		1144	/* now rebuild the heap */
		1145	for (i = periodiccnt >> 1; i--; )
		1146	downheap ((WT *)periodics, periodiccnt, i);
829	}	1147	}
		1148	#endif
830		1149
831	inline int	1150	inline int
832	time_update_monotonic (EV_P)	1151	time_update_monotonic (EV_P)
833	{	1152	{
834	mn_now = get_clock ();	1153	mn_now = get_clock ();
835		1154
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1155	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1156	{
838	rt_now = rtmn_diff + mn_now;	1157	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1158	return 0;
840	}	1159	}
841	else	1160	else
842	{	1161	{
843	now_floor = mn_now;	1162	now_floor = mn_now;
844	rt_now = ev_time ();	1163	ev_rt_now = ev_time ();
845	return 1;	1164	return 1;
846	}	1165	}
847	}	1166	}
848		1167
849	static void	1168	inline void
850	time_update (EV_P)	1169	time_update (EV_P)
851	{	1170	{
852	int i;	1171	int i;
853		1172
854	#if EV_USE_MONOTONIC	1173	#if EV_USE_MONOTONIC
…		…
858	{	1177	{
859	ev_tstamp odiff = rtmn_diff;	1178	ev_tstamp odiff = rtmn_diff;
860		1179
861	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1180	for (i = 4; --i; ) /* loop a few times, before making important decisions */
862	{	1181	{
863	rtmn_diff = rt_now - mn_now;	1182	rtmn_diff = ev_rt_now - mn_now;
864		1183
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1184	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1185	return; /* all is well */
867		1186
868	rt_now = ev_time ();	1187	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1188	mn_now = get_clock ();
870	now_floor = mn_now;	1189	now_floor = mn_now;
871	}	1190	}
872		1191
		1192	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1193	periodics_reschedule (EV_A);
		1194	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1195	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1196	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1197	}
877	}	1198	}
878	else	1199	else
879	#endif	1200	#endif
880	{	1201	{
881	rt_now = ev_time ();	1202	ev_rt_now = ev_time ();
882		1203
883	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1204	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884	{	1205	{
		1206	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1207	periodics_reschedule (EV_A);
		1208	#endif
886		1209
887	/* adjust timers. this is easy, as the offset is the same for all */	1210	/* adjust timers. this is easy, as the offset is the same for all */
888	for (i = 0; i < timercnt; ++i)	1211	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1212	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1213	}
891		1214
892	mn_now = rt_now;	1215	mn_now = ev_rt_now;
893	}	1216	}
894	}	1217	}
895		1218
896	void	1219	void
897	ev_ref (EV_P)	1220	ev_ref (EV_P)
…		…
911	ev_loop (EV_P_ int flags)	1234	ev_loop (EV_P_ int flags)
912	{	1235	{
913	double block;	1236	double block;
914	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1237	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
915		1238
916	do	1239	while (activecnt)
917	{	1240	{
918	/* queue check watchers (and execute them) */	1241	/* queue check watchers (and execute them) */
919	if (expect_false (preparecnt))	1242	if (expect_false (preparecnt))
920	{	1243	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1245	call_pending (EV_A);
923	}	1246	}
924		1247
		1248	/* we might have forked, so reify kernel state if necessary */
		1249	if (expect_false (postfork))
		1250	loop_fork (EV_A);
		1251
925	/* update fd-related kernel structures */	1252	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1253	fd_reify (EV_A);
927		1254
928	/* calculate blocking time */	1255	/* calculate blocking time */
929		1256
930	/* we only need this for !monotonic clockor timers, but as we basically	1257	/* we only need this for !monotonic clock or timers, but as we basically
931	always have timers, we just calculate it always */	1258	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1259	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1260	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1261	time_update_monotonic (EV_A);
935	else	1262	else
936	#endif	1263	#endif
937	{	1264	{
938	rt_now = ev_time ();	1265	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1266	mn_now = ev_rt_now;
940	}	1267	}
941		1268
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1269	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1270	block = 0.;
944	else	1271	else
945	{	1272	{
946	block = MAX_BLOCKTIME;	1273	block = MAX_BLOCKTIME;
947		1274
948	if (timercnt)	1275	if (timercnt)
949	{	1276	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1277	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1278	if (block > to) block = to;
952	}	1279	}
953		1280
		1281	#if EV_PERIODICS
954	if (periodiccnt)	1282	if (periodiccnt)
955	{	1283	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1284	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1285	if (block > to) block = to;
958	}	1286	}
		1287	#endif
959		1288
960	if (block < 0.) block = 0.;	1289	if (expect_false (block < 0.)) block = 0.;
961	}	1290	}
962		1291
963	method_poll (EV_A_ block);	1292	method_poll (EV_A_ block);
964		1293
965	/* update rt_now, do magic */	1294	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1295	time_update (EV_A);
967		1296
968	/* queue pending timers and reschedule them */	1297	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1298	timers_reify (EV_A); /* relative timers called last */
		1299	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1300	periodics_reify (EV_A); /* absolute timers called first */
		1301	#endif
971		1302
972	/* queue idle watchers unless io or timers are pending */	1303	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1304	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1305	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1306
976	/* queue check watchers, to be executed first */	1307	/* queue check watchers, to be executed first */
977	if (checkcnt)	1308	if (expect_false (checkcnt))
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1309	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
979		1310
980	call_pending (EV_A);	1311	call_pending (EV_A);
		1312
		1313	if (expect_false (loop_done))
		1314	break;
981	}	1315	}
982	while (activecnt && !loop_done);
983		1316
984	if (loop_done != 2)	1317	if (loop_done != 2)
985	loop_done = 0;	1318	loop_done = 0;
986	}	1319	}
987		1320
…		…
1047	void	1380	void
1048	ev_io_start (EV_P_ struct ev_io *w)	1381	ev_io_start (EV_P_ struct ev_io *w)
1049	{	1382	{
1050	int fd = w->fd;	1383	int fd = w->fd;
1051		1384
1052	if (ev_is_active (w))	1385	if (expect_false (ev_is_active (w)))
1053	return;	1386	return;
1054		1387
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1388	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1389
1057	ev_start (EV_A_ (W)w, 1);	1390	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1391	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1392	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1393
1061	fd_change (EV_A_ fd);	1394	fd_change (EV_A_ fd);
1062	}	1395	}
1063		1396
1064	void	1397	void
1065	ev_io_stop (EV_P_ struct ev_io *w)	1398	ev_io_stop (EV_P_ struct ev_io *w)
1066	{	1399	{
1067	ev_clear_pending (EV_A_ (W)w);	1400	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1401	if (expect_false (!ev_is_active (w)))
1069	return;	1402	return;
		1403
		1404	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1070		1405
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1406	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1407	ev_stop (EV_A_ (W)w);
1073		1408
1074	fd_change (EV_A_ w->fd);	1409	fd_change (EV_A_ w->fd);
1075	}	1410	}
1076		1411
1077	void	1412	void
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1413	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1414	{
1080	if (ev_is_active (w))	1415	if (expect_false (ev_is_active (w)))
1081	return;	1416	return;
1082		1417
1083	w->at += mn_now;	1418	((WT)w)->at += mn_now;
1084		1419
1085	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1420	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086		1421
1087	ev_start (EV_A_ (W)w, ++timercnt);	1422	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1423	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1089	timers [timercnt - 1] = w;	1424	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1425	upheap ((WT *)timers, timercnt - 1);
		1426
		1427	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1428	}
1092		1429
1093	void	1430	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1431	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1432	{
1096	ev_clear_pending (EV_A_ (W)w);	1433	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1434	if (expect_false (!ev_is_active (w)))
1098	return;	1435	return;
1099		1436
		1437	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1438
1100	if (w->active < timercnt--)	1439	if (expect_true (((W)w)->active < timercnt--))
1101	{	1440	{
1102	timers [w->active - 1] = timers [timercnt];	1441	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1442	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1443	}
1105		1444
1106	w->at = w->repeat;	1445	((WT)w)->at -= mn_now;
1107		1446
1108	ev_stop (EV_A_ (W)w);	1447	ev_stop (EV_A_ (W)w);
1109	}	1448	}
1110		1449
1111	void	1450	void
…		…
1113	{	1452	{
1114	if (ev_is_active (w))	1453	if (ev_is_active (w))
1115	{	1454	{
1116	if (w->repeat)	1455	if (w->repeat)
1117	{	1456	{
1118	w->at = mn_now + w->repeat;	1457	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1458	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1459	}
1121	else	1460	else
1122	ev_timer_stop (EV_A_ w);	1461	ev_timer_stop (EV_A_ w);
1123	}	1462	}
1124	else if (w->repeat)	1463	else if (w->repeat)
		1464	{
		1465	w->at = w->repeat;
1125	ev_timer_start (EV_A_ w);	1466	ev_timer_start (EV_A_ w);
		1467	}
1126	}	1468	}
1127		1469
		1470	#if EV_PERIODICS
1128	void	1471	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1472	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1473	{
1131	if (ev_is_active (w))	1474	if (expect_false (ev_is_active (w)))
1132	return;	1475	return;
1133		1476
		1477	if (w->reschedule_cb)
		1478	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1479	else if (w->interval)
		1480	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1481	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 */	1482	/* 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;	1483	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1484	}
1139		1485
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1486	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1487	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1142	periodics [periodiccnt - 1] = w;	1488	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1489	upheap ((WT *)periodics, periodiccnt - 1);
		1490
		1491	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1492	}
1145		1493
1146	void	1494	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1495	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1496	{
1149	ev_clear_pending (EV_A_ (W)w);	1497	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1498	if (expect_false (!ev_is_active (w)))
1151	return;	1499	return;
1152		1500
		1501	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1502
1153	if (w->active < periodiccnt--)	1503	if (expect_true (((W)w)->active < periodiccnt--))
1154	{	1504	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1505	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1506	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1507	}
1158		1508
1159	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1160	}	1510	}
1161		1511
1162	void	1512	void
		1513	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1514	{
		1515	/* TODO: use adjustheap and recalculation */
		1516	ev_periodic_stop (EV_A_ w);
		1517	ev_periodic_start (EV_A_ w);
		1518	}
		1519	#endif
		1520
		1521	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1522	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1523	{
1165	if (ev_is_active (w))	1524	if (expect_false (ev_is_active (w)))
1166	return;	1525	return;
1167		1526
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1527	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1528	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1170	idles [idlecnt - 1] = w;	1529	idles [idlecnt - 1] = w;
1171	}	1530	}
1172		1531
1173	void	1532	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1533	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1534	{
1176	ev_clear_pending (EV_A_ (W)w);	1535	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1536	if (expect_false (!ev_is_active (w)))
1178	return;	1537	return;
1179		1538
1180	idles [w->active - 1] = idles [--idlecnt];	1539	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1540	ev_stop (EV_A_ (W)w);
1182	}	1541	}
1183		1542
1184	void	1543	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1544	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1545	{
1187	if (ev_is_active (w))	1546	if (expect_false (ev_is_active (w)))
1188	return;	1547	return;
1189		1548
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1549	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1550	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1192	prepares [preparecnt - 1] = w;	1551	prepares [preparecnt - 1] = w;
1193	}	1552	}
1194		1553
1195	void	1554	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1555	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1556	{
1198	ev_clear_pending (EV_A_ (W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1558	if (expect_false (!ev_is_active (w)))
1200	return;	1559	return;
1201		1560
1202	prepares [w->active - 1] = prepares [--preparecnt];	1561	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1562	ev_stop (EV_A_ (W)w);
1204	}	1563	}
1205		1564
1206	void	1565	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1566	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1567	{
1209	if (ev_is_active (w))	1568	if (expect_false (ev_is_active (w)))
1210	return;	1569	return;
1211		1570
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1571	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1572	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1214	checks [checkcnt - 1] = w;	1573	checks [checkcnt - 1] = w;
1215	}	1574	}
1216		1575
1217	void	1576	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1577	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1578	{
1220	ev_clear_pending (EV_A_ (W)w);	1579	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1580	if (expect_false (!ev_is_active (w)))
1222	return;	1581	return;
1223		1582
1224	checks [w->active - 1] = checks [--checkcnt];	1583	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1584	ev_stop (EV_A_ (W)w);
1226	}	1585	}
1227		1586
1228	#ifndef SA_RESTART	1587	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1588	# define SA_RESTART 0
…		…
1231		1590
1232	void	1591	void
1233	ev_signal_start (EV_P_ struct ev_signal *w)	1592	ev_signal_start (EV_P_ struct ev_signal *w)
1234	{	1593	{
1235	#if EV_MULTIPLICITY	1594	#if EV_MULTIPLICITY
1236	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1595	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1237	#endif	1596	#endif
1238	if (ev_is_active (w))	1597	if (expect_false (ev_is_active (w)))
1239	return;	1598	return;
1240		1599
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1600	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1601
1243	ev_start (EV_A_ (W)w, 1);	1602	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1603	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1604	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1605
1247	if (!w->next)	1606	if (!((WL)w)->next)
1248	{	1607	{
		1608	#if _WIN32
		1609	signal (w->signum, sighandler);
		1610	#else
1249	struct sigaction sa;	1611	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1612	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1613	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1614	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1615	sigaction (w->signum, &sa, 0);
		1616	#endif
1254	}	1617	}
1255	}	1618	}
1256		1619
1257	void	1620	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1621	ev_signal_stop (EV_P_ struct ev_signal *w)
1259	{	1622	{
1260	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1261	if (!ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1262	return;	1625	return;
1263		1626
1264	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1627	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1265	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1266		1629
…		…
1270		1633
1271	void	1634	void
1272	ev_child_start (EV_P_ struct ev_child *w)	1635	ev_child_start (EV_P_ struct ev_child *w)
1273	{	1636	{
1274	#if EV_MULTIPLICITY	1637	#if EV_MULTIPLICITY
1275	assert (("child watchers are only supported in the default loop", loop == default_loop));	1638	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1276	#endif	1639	#endif
1277	if (ev_is_active (w))	1640	if (expect_false (ev_is_active (w)))
1278	return;	1641	return;
1279		1642
1280	ev_start (EV_A_ (W)w, 1);	1643	ev_start (EV_A_ (W)w, 1);
1281	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1644	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1282	}	1645	}
1283		1646
1284	void	1647	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1648	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1649	{
1287	ev_clear_pending (EV_A_ (W)w);	1650	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1651	if (expect_false (!ev_is_active (w)))
1289	return;	1652	return;
1290		1653
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1654	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1655	ev_stop (EV_A_ (W)w);
1293	}	1656	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1671	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1672	void *arg = once->arg;
1310		1673
1311	ev_io_stop (EV_A_ &once->io);	1674	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1675	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1676	ev_free (once);
1314		1677
1315	cb (revents, arg);	1678	cb (revents, arg);
1316	}	1679	}
1317		1680
1318	static void	1681	static void
…		…
1328	}	1691	}
1329		1692
1330	void	1693	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1694	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1332	{	1695	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1696	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1697
1335	if (!once)	1698	if (expect_false (!once))
		1699	{
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1700	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1701	return;
1338	{	1702	}
		1703
1339	once->cb = cb;	1704	once->cb = cb;
1340	once->arg = arg;	1705	once->arg = arg;
1341		1706
1342	ev_watcher_init (&once->io, once_cb_io);	1707	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1708	if (fd >= 0)
1344	{	1709	{
1345	ev_io_set (&once->io, fd, events);	1710	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1711	ev_io_start (EV_A_ &once->io);
1347	}	1712	}
1348		1713
1349	ev_watcher_init (&once->to, once_cb_to);	1714	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1715	if (timeout >= 0.)
1351	{	1716	{
1352	ev_timer_set (&once->to, timeout, 0.);	1717	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1718	ev_timer_start (EV_A_ &once->to);
1354	}
1355	}	1719	}
1356	}	1720	}
1357		1721
		1722	#ifdef __cplusplus
		1723	}
		1724	#endif
		1725

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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 1.129 by root, Fri Nov 23 05:00:44 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 1.129 by root, Fri Nov 23 05:00:44 2007 UTC