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

Comparing libev/ev.c (file contents):
Revision 1.59 by root, Sun Nov 4 18:15:16 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# 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_USE_POLL	137	#ifndef EV_USE_POLL
64	# define EV_USE_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
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
98	#include "ev.h"	183	# include "ev.h"
		184	#endif
99		185
100	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	188	# define inline static inline
103	#else	189	#else
104	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
105	# define inline static	191	# define inline static
106	#endif	192	#endif
107		193
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
110		196
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
114	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
117		206
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		208
		209	#ifdef _WIN32
		210	# include "ev_win32.c"
		211	#endif
		212
120	/*****************************************************************************/	213	/*****************************************************************************/
121		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
122	typedef struct	263	typedef struct
123	{	264	{
124	struct ev_watcher_list *head;	265	WL head;
125	unsigned char events;	266	unsigned char events;
126	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
127	} ANFD;	271	} ANFD;
128		272
129	typedef struct	273	typedef struct
130	{	274	{
131	W w;	275	W w;
132	int events;	276	int events;
133	} ANPENDING;	277	} ANPENDING;
134		278
135	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
136		280
137	struct ev_loop	281	struct ev_loop
138	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
139	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
140	# include "ev_vars.h"	286	#include "ev_vars.h"
141	};
142	# undef VAR	287	#undef VAR
		288	};
143	# 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;
144		293
145	#else	294	#else
146		295
		296	ev_tstamp ev_rt_now;
147	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
148	# include "ev_vars.h"	298	#include "ev_vars.h"
149	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
150		302
151	#endif	303	#endif
152		304
153	/*****************************************************************************/	305	/*****************************************************************************/
154		306
155	inline ev_tstamp	307	ev_tstamp
156	ev_time (void)	308	ev_time (void)
157	{	309	{
158	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
159	struct timespec ts;	311	struct timespec ts;
160	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
179	#endif	331	#endif
180		332
181	return ev_time ();	333	return ev_time ();
182	}	334	}
183		335
		336	#if EV_MULTIPLICITY
184	ev_tstamp	337	ev_tstamp
185	ev_now (EV_P)	338	ev_now (EV_P)
186	{	339	{
187	return rt_now;	340	return ev_rt_now;
188	}	341	}
		342	#endif
189		343
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
191		345
192	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
194	{ \	348	{ \
195	int newcnt = cur; \	349	int newcnt = cur; \
196	do \	350	do \
197	{ \	351	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	353	} \
200	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
201	\	355	\
202	base = realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	358	cur = newcnt; \
205	}	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;
206		371
207	/*****************************************************************************/	372	/*****************************************************************************/
208		373
209	static void	374	static void
210	anfds_init (ANFD *base, int count)	375	anfds_init (ANFD *base, int count)
…		…
217		382
218	++base;	383	++base;
219	}	384	}
220	}	385	}
221		386
222	static void	387	void
223	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
224	{	389	{
225	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
226	{	393	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	395	return;
229	}	396	}
230		397
231	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	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);
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	402	}
236		403
237	static void	404	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	406	{
240	int i;	407	int i;
241		408
242	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
244	}	411	}
245		412
246	static void	413	inline void
247	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
248	{	415	{
249	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	417	struct ev_io *w;
251		418
252	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)
253	{	420	{
254	int ev = w->events & events;	421	int ev = w->events & revents;
255		422
256	if (ev)	423	if (ev)
257	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
258	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
259	}	432	}
260		433
261	/*****************************************************************************/	434	/*****************************************************************************/
262		435
263	static void	436	inline void
264	fd_reify (EV_P)	437	fd_reify (EV_P)
265	{	438	{
266	int i;	439	int i;
267		440
268	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
274	int events = 0;	447	int events = 0;
275		448
276	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)
277	events \|= w->events;	450	events \|= w->events;
278		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
279	anfd->reify = 0;	461	anfd->reify = 0;
280		462
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	464	anfd->events = events;
285	}
286	}	465	}
287		466
288	fdchangecnt = 0;	467	fdchangecnt = 0;
289	}	468	}
290		469
291	static void	470	static void
292	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
293	{	472	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
295	return;	474	return;
296		475
297	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
298		477
299	++fdchangecnt;	478	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
301	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
302	}	481	}
303		482
304	static void	483	static void
305	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	486	struct ev_io *w;
308		487
309	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
310	{	489	{
311	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
312	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);
313	}	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
314	}	503	}
315		504
316	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
317	static void	506	static void
318	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
319	{	508	{
320	int fd;	509	int fd;
321		510
322	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	512	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
326	}	515	}
327		516
328	/* 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 */
329	static void	518	static void
330	fd_enomem (EV_P)	519	fd_enomem (EV_P)
331	{	520	{
332	int fd = anfdmax;	521	int fd;
333		522
334	while (fd--)	523	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	524	if (anfds [fd].events)
336	{	525	{
337	close (fd);
338	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
339	return;	527	return;
340	}	528	}
341	}	529	}
342		530
343	/* susually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
344	static void	532	static void
345	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
346	{	534	{
347	int fd;	535	int fd;
348		536
349	/* 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 */
350	for (fd = 0; fd < anfdmax; ++fd)	538	for (fd = 0; fd < anfdmax; ++fd)
351	if (anfds [fd].events)	539	if (anfds [fd].events)
352	{	540	{
353	anfds [fd].events = 0;	541	anfds [fd].events = 0;
354	fd_change (fd);	542	fd_change (EV_A_ fd);
355	}	543	}
356	}	544	}
357		545
358	/*****************************************************************************/	546	/*****************************************************************************/
359		547
…		…
363	WT w = heap [k];	551	WT w = heap [k];
364		552
365	while (k && heap [k >> 1]->at > w->at)	553	while (k && heap [k >> 1]->at > w->at)
366	{	554	{
367	heap [k] = heap [k >> 1];	555	heap [k] = heap [k >> 1];
368	heap [k]->active = k + 1;	556	((W)heap [k])->active = k + 1;
369	k >>= 1;	557	k >>= 1;
370	}	558	}
371		559
372	heap [k] = w;	560	heap [k] = w;
373	heap [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
374		562
375	}	563	}
376		564
377	static void	565	static void
378	downheap (WT *heap, int N, int k)	566	downheap (WT *heap, int N, int k)
…		…
388		576
389	if (w->at <= heap [j]->at)	577	if (w->at <= heap [j]->at)
390	break;	578	break;
391		579
392	heap [k] = heap [j];	580	heap [k] = heap [j];
393	heap [k]->active = k + 1;	581	((W)heap [k])->active = k + 1;
394	k = j;	582	k = j;
395	}	583	}
396		584
397	heap [k] = w;	585	heap [k] = w;
398	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);
399	}	594	}
400		595
401	/*****************************************************************************/	596	/*****************************************************************************/
402		597
403	typedef struct	598	typedef struct
404	{	599	{
405	struct ev_watcher_list *head;	600	WL head;
406	sig_atomic_t volatile gotsig;	601	sig_atomic_t volatile gotsig;
407	} ANSIG;	602	} ANSIG;
408		603
409	static ANSIG *signals;	604	static ANSIG *signals;
410	static int signalmax;	605	static int signalmax;
…		…
426	}	621	}
427		622
428	static void	623	static void
429	sighandler (int signum)	624	sighandler (int signum)
430	{	625	{
		626	#if _WIN32
		627	signal (signum, sighandler);
		628	#endif
		629
431	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
432		631
433	if (!gotsig)	632	if (!gotsig)
434	{	633	{
435	int old_errno = errno;	634	int old_errno = errno;
…		…
437	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
438	errno = old_errno;	637	errno = old_errno;
439	}	638	}
440	}	639	}
441		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
442	static void	661	static void
443	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
444	{	663	{
445	struct ev_watcher_list *w;
446	int signum;	664	int signum;
447		665
448	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
449	gotsig = 0;	667	gotsig = 0;
450		668
451	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
452	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
453	{	671	ev_feed_signal_event (EV_A_ signum + 1);
454	signals [signum].gotsig = 0;	672	}
455		673
456	for (w = signals [signum].head; w; w = w->next)	674	static void
457	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
458	}	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
459	}	684	}
460		685
461	static void	686	static void
462	siginit (EV_P)	687	siginit (EV_P)
463	{	688	{
464	#ifndef WIN32	689	fd_intern (sigpipe [0]);
465	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
466	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
467
468	/* rather than sort out wether we really need nb, set it */
469	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
470	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
471	#endif
472		691
473	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
474	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
475	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
476	}	695	}
477		696
478	/*****************************************************************************/	697	/*****************************************************************************/
479		698
480	#ifndef WIN32
481
482	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
		700
		701	#ifndef _WIN32
		702
483	static struct ev_signal childev;	703	static struct ev_signal childev;
484		704
485	#ifndef WCONTINUED	705	#ifndef WCONTINUED
486	# define WCONTINUED 0	706	# define WCONTINUED 0
487	#endif	707	#endif
…		…
492	struct ev_child *w;	712	struct ev_child *w;
493		713
494	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)
495	if (w->pid == pid \|\| !w->pid)	715	if (w->pid == pid \|\| !w->pid)
496	{	716	{
497	w->priority = sw->priority; /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
498	w->rpid = pid;	718	w->rpid = pid;
499	w->rstatus = status;	719	w->rstatus = status;
500	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
501	}	721	}
502	}	722	}
503		723
504	static void	724	static void
505	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
507	int pid, status;	727	int pid, status;
508		728
509	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
510	{	730	{
511	/* 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 */
		732	/* we need to do it this way so that the callback gets called before we continue */
512	event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
513		734
514	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
515	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
516	}	737	}
517	}	738	}
518		739
519	#endif	740	#endif
520		741
521	/*****************************************************************************/	742	/*****************************************************************************/
522		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
523	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
524	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
525	#endif	749	#endif
526	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
527	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
547		771
548	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
549	static int	773	static int
550	enable_secure (void)	774	enable_secure (void)
551	{	775	{
552	#ifdef WIN32	776	#ifdef _WIN32
553	return 0;	777	return 0;
554	#else	778	#else
555	return getuid () != geteuid ()	779	return getuid () != geteuid ()
556	\|\| getgid () != getegid ();	780	\|\| getgid () != getegid ();
557	#endif	781	#endif
558	}	782	}
559		783
560	int	784	unsigned int
561	ev_method (EV_P)	785	ev_supported_backends (void)
562	{	786	{
563	return method;	787	unsigned int flags = 0;
564	}
565		788
566	static void	789	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
567	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
568	{	800	{
569	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
570	{	826	{
571	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
572	{	828	{
573	struct timespec ts;	829	struct timespec ts;
574	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
575	have_monotonic = 1;	831	have_monotonic = 1;
576	}	832	}
577	#endif	833	#endif
578		834
579	rt_now = ev_time ();	835	ev_rt_now = ev_time ();
580	mn_now = get_clock ();	836	mn_now = get_clock ();
581	now_floor = mn_now;	837	now_floor = mn_now;
582	rtmn_diff = rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
583		839
584	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
585	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
586	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
587	else
588	methods = EVMETHOD_ANY;
589		844
590	method = 0;	845	if (!(flags & 0x0000ffffUL))
		846	flags \|= ev_recommended_backends ();
		847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
		851	#endif
591	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
592	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
593	#endif	854	#endif
594	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
595	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
596	#endif	857	#endif
597	#if EV_USE_POLL	858	#if EV_USE_POLL
598	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
599	#endif	860	#endif
600	#if EV_USE_SELECT	861	#if EV_USE_SELECT
601	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
602	#endif	863	#endif
603	}
604	}
605		864
606	void	865	ev_init (&sigev, sigcb);
		866	ev_set_priority (&sigev, EV_MAXPRI);
		867	}
		868	}
		869
		870	static void
607	loop_destroy (EV_P)	871	loop_destroy (EV_P)
608	{	872	{
		873	int i;
		874
		875	#if EV_USE_PORT
		876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
		877	#endif
609	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
610	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
611	#endif	880	#endif
612	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
613	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
614	#endif	883	#endif
615	#if EV_USE_POLL	884	#if EV_USE_POLL
616	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
617	#endif	886	#endif
618	#if EV_USE_SELECT	887	#if EV_USE_SELECT
619	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
620	#endif	889	#endif
621		890
622	method = 0;	891	for (i = NUMPRI; i--; )
623	/TODO/	892	array_free (pending, [i]);
624	}
625		893
626	void	894	/* have to use the microsoft-never-gets-it-right macro */
		895	array_free (fdchange, EMPTY0);
		896	array_free (timer, EMPTY0);
		897	#if EV_PERIODICS
		898	array_free (periodic, EMPTY0);
		899	#endif
		900	array_free (idle, EMPTY0);
		901	array_free (prepare, EMPTY0);
		902	array_free (check, EMPTY0);
		903
		904	backend = 0;
		905	}
		906
		907	static void
627	loop_fork (EV_P)	908	loop_fork (EV_P)
628	{	909	{
629	/TODO/	910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
630	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
631	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
632	#endif	918	#endif
633	#if EV_USE_KQUEUE	919
634	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	920	if (ev_is_active (&sigev))
635	#endif	921	{
		922	/* default loop */
		923
		924	ev_ref (EV_A);
		925	ev_io_stop (EV_A_ &sigev);
		926	close (sigpipe [0]);
		927	close (sigpipe [1]);
		928
		929	while (pipe (sigpipe))
		930	syserr ("(libev) error creating pipe");
		931
		932	siginit (EV_A);
		933	}
		934
		935	postfork = 0;
636	}	936	}
637		937
638	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
639	struct ev_loop *	939	struct ev_loop *
640	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
641	{	941	{
642	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	942	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
643		943
		944	memset (loop, 0, sizeof (struct ev_loop));
		945
644	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
645		947
646	if (ev_methods (EV_A))	948	if (ev_backend (EV_A))
647	return loop;	949	return loop;
648		950
649	return 0;	951	return 0;
650	}	952	}
651		953
652	void	954	void
653	ev_loop_destroy (EV_P)	955	ev_loop_destroy (EV_P)
654	{	956	{
655	loop_destroy (EV_A);	957	loop_destroy (EV_A);
656	free (loop);	958	ev_free (loop);
657	}	959	}
658		960
659	void	961	void
660	ev_loop_fork (EV_P)	962	ev_loop_fork (EV_P)
661	{	963	{
662	loop_fork (EV_A);	964	postfork = 1;
663	}	965	}
664		966
665	#endif	967	#endif
666		968
667	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
668	struct ev_loop default_loop_struct;
669	static struct ev_loop *default_loop;
670
671	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
672	#else	972	#else
673	static int default_loop;
674
675	int	973	int
		974	ev_default_loop (unsigned int flags)
676	#endif	975	#endif
677	ev_default_loop (int methods)
678	{	976	{
679	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
680	if (pipe (sigpipe))	978	if (pipe (sigpipe))
681	return 0;	979	return 0;
682		980
683	if (!default_loop)	981	if (!ev_default_loop_ptr)
684	{	982	{
685	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
686	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
687	#else	985	#else
688	default_loop = 1;	986	ev_default_loop_ptr = 1;
689	#endif	987	#endif
690		988
691	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
692		990
693	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
694	{	992	{
695	ev_watcher_init (&sigev, sigcb);
696	ev_set_priority (&sigev, EV_MAXPRI);
697	siginit (EV_A);	993	siginit (EV_A);
698		994
699	#ifndef WIN32	995	#ifndef _WIN32
700	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
701	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
702	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
703	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
704	#endif	1000	#endif
705	}	1001	}
706	else	1002	else
707	default_loop = 0;	1003	ev_default_loop_ptr = 0;
708	}	1004	}
709		1005
710	return default_loop;	1006	return ev_default_loop_ptr;
711	}	1007	}
712		1008
713	void	1009	void
714	ev_default_destroy (void)	1010	ev_default_destroy (void)
715	{	1011	{
716	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
717	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
718	#endif	1014	#endif
719		1015
		1016	#ifndef _WIN32
720	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
721	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
		1019	#endif
722		1020
723	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
724	ev_io_stop (EV_A_ &sigev);	1022	ev_io_stop (EV_A_ &sigev);
725		1023
726	close (sigpipe [0]); sigpipe [0] = 0;	1024	close (sigpipe [0]); sigpipe [0] = 0;
…		…
728		1026
729	loop_destroy (EV_A);	1027	loop_destroy (EV_A);
730	}	1028	}
731		1029
732	void	1030	void
733	ev_default_fork (EV_P)	1031	ev_default_fork (void)
734	{	1032	{
735	loop_fork (EV_A);	1033	#if EV_MULTIPLICITY
		1034	struct ev_loop *loop = ev_default_loop_ptr;
		1035	#endif
736		1036
737	ev_io_stop (EV_A_ &sigev);	1037	if (backend)
738	close (sigpipe [0]);	1038	postfork = 1;
739	close (sigpipe [1]);
740	pipe (sigpipe);
741
742	ev_ref (EV_A); /* signal watcher */
743	siginit (EV_A);
744	}	1039	}
745		1040
746	/*****************************************************************************/	1041	/*****************************************************************************/
747		1042
748	static void	1043	static int
		1044	any_pending (EV_P)
		1045	{
		1046	int pri;
		1047
		1048	for (pri = NUMPRI; pri--; )
		1049	if (pendingcnt [pri])
		1050	return 1;
		1051
		1052	return 0;
		1053	}
		1054
		1055	inline void
749	call_pending (EV_P)	1056	call_pending (EV_P)
750	{	1057	{
751	int pri;	1058	int pri;
752		1059
753	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
754	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
755	{	1062	{
756	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
757		1064
758	if (p->w)	1065	if (expect_true (p->w))
759	{	1066	{
760	p->w->pending = 0;	1067	p->w->pending = 0;
761	p->w->cb (EV_A_ p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
762	}	1069	}
763	}	1070	}
764	}	1071	}
765		1072
766	static void	1073	inline void
767	timers_reify (EV_P)	1074	timers_reify (EV_P)
768	{	1075	{
769	while (timercnt && timers [0]->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
770	{	1077	{
771	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
		1079
		1080	assert (("inactive timer on timer heap detected", ev_is_active (w)));
772		1081
773	/* first reschedule or stop timer */	1082	/* first reschedule or stop timer */
774	if (w->repeat)	1083	if (w->repeat)
775	{	1084	{
776	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1085	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1086
777	w->at = mn_now + w->repeat;	1087	((WT)w)->at += w->repeat;
		1088	if (((WT)w)->at < mn_now)
		1089	((WT)w)->at = mn_now;
		1090
778	downheap ((WT *)timers, timercnt, 0);	1091	downheap ((WT *)timers, timercnt, 0);
779	}	1092	}
780	else	1093	else
781	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1094	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
782		1095
783	event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
784	}	1097	}
785	}	1098	}
786		1099
787	static void	1100	#if EV_PERIODICS
		1101	inline void
788	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
789	{	1103	{
790	while (periodiccnt && periodics [0]->at <= rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
791	{	1105	{
792	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
793		1107
		1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1109
794	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
795	if (w->interval)	1111	if (w->reschedule_cb)
796	{	1112	{
		1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1115	downheap ((WT *)periodics, periodiccnt, 0);
		1116	}
		1117	else if (w->interval)
		1118	{
797	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1119	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
798	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1120	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
799	downheap ((WT *)periodics, periodiccnt, 0);	1121	downheap ((WT *)periodics, periodiccnt, 0);
800	}	1122	}
801	else	1123	else
802	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1124	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
803		1125
804	event (EV_A_ (W)w, EV_PERIODIC);	1126	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
805	}	1127	}
806	}	1128	}
807		1129
808	static void	1130	static void
809	periodics_reschedule (EV_P)	1131	periodics_reschedule (EV_P)
…		…
813	/* adjust periodics after time jump */	1135	/* adjust periodics after time jump */
814	for (i = 0; i < periodiccnt; ++i)	1136	for (i = 0; i < periodiccnt; ++i)
815	{	1137	{
816	struct ev_periodic *w = periodics [i];	1138	struct ev_periodic *w = periodics [i];
817		1139
		1140	if (w->reschedule_cb)
		1141	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
818	if (w->interval)	1142	else if (w->interval)
819	{
820	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1143	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
821
822	if (fabs (diff) >= 1e-4)
823	{
824	ev_periodic_stop (EV_A_ w);
825	ev_periodic_start (EV_A_ w);
826
827	i = 0; /* restart loop, inefficient, but time jumps should be rare */
828	}
829	}
830	}	1144	}
		1145
		1146	/* now rebuild the heap */
		1147	for (i = periodiccnt >> 1; i--; )
		1148	downheap ((WT *)periodics, periodiccnt, i);
831	}	1149	}
		1150	#endif
832		1151
833	inline int	1152	inline int
834	time_update_monotonic (EV_P)	1153	time_update_monotonic (EV_P)
835	{	1154	{
836	mn_now = get_clock ();	1155	mn_now = get_clock ();
837		1156
838	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1157	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
839	{	1158	{
840	rt_now = rtmn_diff + mn_now;	1159	ev_rt_now = rtmn_diff + mn_now;
841	return 0;	1160	return 0;
842	}	1161	}
843	else	1162	else
844	{	1163	{
845	now_floor = mn_now;	1164	now_floor = mn_now;
846	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
847	return 1;	1166	return 1;
848	}	1167	}
849	}	1168	}
850		1169
851	static void	1170	inline void
852	time_update (EV_P)	1171	time_update (EV_P)
853	{	1172	{
854	int i;	1173	int i;
855		1174
856	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
860	{	1179	{
861	ev_tstamp odiff = rtmn_diff;	1180	ev_tstamp odiff = rtmn_diff;
862		1181
863	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1182	for (i = 4; --i; ) /* loop a few times, before making important decisions */
864	{	1183	{
865	rtmn_diff = rt_now - mn_now;	1184	rtmn_diff = ev_rt_now - mn_now;
866		1185
867	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1186	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
868	return; /* all is well */	1187	return; /* all is well */
869		1188
870	rt_now = ev_time ();	1189	ev_rt_now = ev_time ();
871	mn_now = get_clock ();	1190	mn_now = get_clock ();
872	now_floor = mn_now;	1191	now_floor = mn_now;
873	}	1192	}
874		1193
		1194	# if EV_PERIODICS
875	periodics_reschedule (EV_A);	1195	periodics_reschedule (EV_A);
		1196	# endif
876	/* no timer adjustment, as the monotonic clock doesn't jump */	1197	/* no timer adjustment, as the monotonic clock doesn't jump */
877	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1198	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
878	}	1199	}
879	}	1200	}
880	else	1201	else
881	#endif	1202	#endif
882	{	1203	{
883	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
884		1205
885	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1206	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
886	{	1207	{
		1208	#if EV_PERIODICS
887	periodics_reschedule (EV_A);	1209	periodics_reschedule (EV_A);
		1210	#endif
888		1211
889	/* adjust timers. this is easy, as the offset is the same for all */	1212	/* adjust timers. this is easy, as the offset is the same for all */
890	for (i = 0; i < timercnt; ++i)	1213	for (i = 0; i < timercnt; ++i)
891	timers [i]->at += rt_now - mn_now;	1214	((WT)timers [i])->at += ev_rt_now - mn_now;
892	}	1215	}
893		1216
894	mn_now = rt_now;	1217	mn_now = ev_rt_now;
895	}	1218	}
896	}	1219	}
897		1220
898	void	1221	void
899	ev_ref (EV_P)	1222	ev_ref (EV_P)
…		…
913	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
914	{	1237	{
915	double block;	1238	double block;
916	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
917		1240
918	do	1241	while (activecnt)
919	{	1242	{
920	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
921	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
922	{	1245	{
923	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
924	call_pending (EV_A);	1247	call_pending (EV_A);
925	}	1248	}
926		1249
		1250	/* we might have forked, so reify kernel state if necessary */
		1251	if (expect_false (postfork))
		1252	loop_fork (EV_A);
		1253
927	/* update fd-related kernel structures */	1254	/* update fd-related kernel structures */
928	fd_reify (EV_A);	1255	fd_reify (EV_A);
929		1256
930	/* calculate blocking time */	1257	/* calculate blocking time */
931		1258
932	/* we only need this for !monotonic clockor timers, but as we basically	1259	/* we only need this for !monotonic clock or timers, but as we basically
933	always have timers, we just calculate it always */	1260	always have timers, we just calculate it always */
934	#if EV_USE_MONOTONIC	1261	#if EV_USE_MONOTONIC
935	if (expect_true (have_monotonic))	1262	if (expect_true (have_monotonic))
936	time_update_monotonic (EV_A);	1263	time_update_monotonic (EV_A);
937	else	1264	else
938	#endif	1265	#endif
939	{	1266	{
940	rt_now = ev_time ();	1267	ev_rt_now = ev_time ();
941	mn_now = rt_now;	1268	mn_now = ev_rt_now;
942	}	1269	}
943		1270
944	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1271	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
945	block = 0.;	1272	block = 0.;
946	else	1273	else
947	{	1274	{
948	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
949		1276
950	if (timercnt)	1277	if (timercnt)
951	{	1278	{
952	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
953	if (block > to) block = to;	1280	if (block > to) block = to;
954	}	1281	}
955		1282
		1283	#if EV_PERIODICS
956	if (periodiccnt)	1284	if (periodiccnt)
957	{	1285	{
958	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
959	if (block > to) block = to;	1287	if (block > to) block = to;
960	}	1288	}
		1289	#endif
961		1290
962	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
963	}	1292	}
964		1293
965	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
966		1295
967	/* update rt_now, do magic */	1296	/* update ev_rt_now, do magic */
968	time_update (EV_A);	1297	time_update (EV_A);
969		1298
970	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
971	timers_reify (EV_A); /* relative timers called last */	1300	timers_reify (EV_A); /* relative timers called last */
		1301	#if EV_PERIODICS
972	periodics_reify (EV_A); /* absolute timers called first */	1302	periodics_reify (EV_A); /* absolute timers called first */
		1303	#endif
973		1304
974	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
975	if (!pendingcnt)	1306	if (idlecnt && !any_pending (EV_A))
976	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
977		1308
978	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
979	if (checkcnt)	1310	if (expect_false (checkcnt))
980	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
981		1312
982	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
983	}	1317	}
984	while (activecnt && !loop_done);
985		1318
986	if (loop_done != 2)	1319	if (loop_done != 2)
987	loop_done = 0;	1320	loop_done = 0;
988	}	1321	}
989		1322
…		…
1049	void	1382	void
1050	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1051	{	1384	{
1052	int fd = w->fd;	1385	int fd = w->fd;
1053		1386
1054	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1055	return;	1388	return;
1056		1389
1057	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1058		1391
1059	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
1060	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1393	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1061	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1394	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1062		1395
1063	fd_change (EV_A_ fd);	1396	fd_change (EV_A_ fd);
1064	}	1397	}
1065		1398
1066	void	1399	void
1067	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1068	{	1401	{
1069	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1070	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1071	return;	1404	return;
		1405
		1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1072		1407
1073	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1074	ev_stop (EV_A_ (W)w);	1409	ev_stop (EV_A_ (W)w);
1075		1410
1076	fd_change (EV_A_ w->fd);	1411	fd_change (EV_A_ w->fd);
1077	}	1412	}
1078		1413
1079	void	1414	void
1080	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1081	{	1416	{
1082	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1083	return;	1418	return;
1084		1419
1085	w->at += mn_now;	1420	((WT)w)->at += mn_now;
1086		1421
1087	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1088		1423
1089	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1090	array_needsize (timers, timermax, timercnt, );	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1091	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1092	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
		1428
		1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1093	}	1430	}
1094		1431
1095	void	1432	void
1096	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1097	{	1434	{
1098	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1099	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1100	return;	1437	return;
1101		1438
		1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1440
1102	if (w->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1103	{	1442	{
1104	timers [w->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1105	downheap ((WT *)timers, timercnt, w->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1106	}	1445	}
1107		1446
1108	w->at = w->repeat;	1447	((WT)w)->at -= mn_now;
1109		1448
1110	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1111	}	1450	}
1112		1451
1113	void	1452	void
…		…
1115	{	1454	{
1116	if (ev_is_active (w))	1455	if (ev_is_active (w))
1117	{	1456	{
1118	if (w->repeat)	1457	if (w->repeat)
1119	{	1458	{
1120	w->at = mn_now + w->repeat;	1459	((WT)w)->at = mn_now + w->repeat;
1121	downheap ((WT *)timers, timercnt, w->active - 1);	1460	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1122	}	1461	}
1123	else	1462	else
1124	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1125	}	1464	}
1126	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1127	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1128	}	1470	}
1129		1471
		1472	#if EV_PERIODICS
1130	void	1473	void
1131	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1132	{	1475	{
1133	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1134	return;	1477	return;
1135		1478
		1479	if (w->reschedule_cb)
		1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1481	else if (w->interval)
		1482	{
1136	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1483	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1137
1138	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1139	if (w->interval)
1140	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1486	}
1141		1487
1142	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1143	array_needsize (periodics, periodicmax, periodiccnt, );	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1144	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1145	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
		1492
		1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1146	}	1494	}
1147		1495
1148	void	1496	void
1149	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1150	{	1498	{
1151	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1152	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1153	return;	1501	return;
1154		1502
		1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1504
1155	if (w->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1156	{	1506	{
1157	periodics [w->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1158	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1159	}	1509	}
1160		1510
1161	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1162	}	1512	}
1163		1513
1164	void	1514	void
		1515	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1516	{
		1517	/* TODO: use adjustheap and recalculation */
		1518	ev_periodic_stop (EV_A_ w);
		1519	ev_periodic_start (EV_A_ w);
		1520	}
		1521	#endif
		1522
		1523	void
1165	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1166	{	1525	{
1167	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1168	return;	1527	return;
1169		1528
1170	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1171	array_needsize (idles, idlemax, idlecnt, );	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1172	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1173	}	1532	}
1174		1533
1175	void	1534	void
1176	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1177	{	1536	{
1178	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1179	if (ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1180	return;	1539	return;
1181		1540
1182	idles [w->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1183	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1184	}	1543	}
1185		1544
1186	void	1545	void
1187	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1188	{	1547	{
1189	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1190	return;	1549	return;
1191		1550
1192	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1193	array_needsize (prepares, preparemax, preparecnt, );	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1194	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1195	}	1554	}
1196		1555
1197	void	1556	void
1198	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1199	{	1558	{
1200	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1201	if (ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1202	return;	1561	return;
1203		1562
1204	prepares [w->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1205	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1206	}	1565	}
1207		1566
1208	void	1567	void
1209	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1210	{	1569	{
1211	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1212	return;	1571	return;
1213		1572
1214	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1215	array_needsize (checks, checkmax, checkcnt, );	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1216	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1217	}	1576	}
1218		1577
1219	void	1578	void
1220	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1221	{	1580	{
1222	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1223	if (ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1224	return;	1583	return;
1225		1584
1226	checks [w->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1227	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1228	}	1587	}
1229		1588
1230	#ifndef SA_RESTART	1589	#ifndef SA_RESTART
1231	# define SA_RESTART 0	1590	# define SA_RESTART 0
…		…
1233		1592
1234	void	1593	void
1235	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1236	{	1595	{
1237	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1238	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1239	#endif	1598	#endif
1240	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1241	return;	1600	return;
1242		1601
1243	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1244		1603
1245	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1246	array_needsize (signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1247	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1248		1607
1249	if (!w->next)	1608	if (!((WL)w)->next)
1250	{	1609	{
		1610	#if _WIN32
		1611	signal (w->signum, sighandler);
		1612	#else
1251	struct sigaction sa;	1613	struct sigaction sa;
1252	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1253	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
1254	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1616	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1255	sigaction (w->signum, &sa, 0);	1617	sigaction (w->signum, &sa, 0);
		1618	#endif
1256	}	1619	}
1257	}	1620	}
1258		1621
1259	void	1622	void
1260	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1261	{	1624	{
1262	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1263	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1264	return;	1627	return;
1265		1628
1266	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1267	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1268		1631
…		…
1272		1635
1273	void	1636	void
1274	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1275	{	1638	{
1276	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1277	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1278	#endif	1641	#endif
1279	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1280	return;	1643	return;
1281		1644
1282	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1283	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1284	}	1647	}
1285		1648
1286	void	1649	void
1287	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1288	{	1651	{
1289	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1290	if (ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1291	return;	1654	return;
1292		1655
1293	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1294	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1295	}	1658	}
…		…
1310	void (cb)(int revents, void arg) = once->cb;	1673	void (cb)(int revents, void arg) = once->cb;
1311	void *arg = once->arg;	1674	void *arg = once->arg;
1312		1675
1313	ev_io_stop (EV_A_ &once->io);	1676	ev_io_stop (EV_A_ &once->io);
1314	ev_timer_stop (EV_A_ &once->to);	1677	ev_timer_stop (EV_A_ &once->to);
1315	free (once);	1678	ev_free (once);
1316		1679
1317	cb (revents, arg);	1680	cb (revents, arg);
1318	}	1681	}
1319		1682
1320	static void	1683	static void
…		…
1330	}	1693	}
1331		1694
1332	void	1695	void
1333	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1334	{	1697	{
1335	struct ev_once *once = malloc (sizeof (struct ev_once));	1698	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1336		1699
1337	if (!once)	1700	if (expect_false (!once))
		1701	{
1338	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1702	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1339	else	1703	return;
1340	{	1704	}
		1705
1341	once->cb = cb;	1706	once->cb = cb;
1342	once->arg = arg;	1707	once->arg = arg;
1343		1708
1344	ev_watcher_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1345	if (fd >= 0)	1710	if (fd >= 0)
1346	{	1711	{
1347	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1348	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1349	}	1714	}
1350		1715
1351	ev_watcher_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1352	if (timeout >= 0.)	1717	if (timeout >= 0.)
1353	{	1718	{
1354	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1355	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1356	}
1357	}	1721	}
1358	}	1722	}
1359		1723
		1724	#ifdef __cplusplus
		1725	}
		1726	#endif
		1727

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Comparing libev/ev.c (file contents): Revision 1.59 by root, Sun Nov 4 18:15:16 2007 UTC vs. Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.59 by root, Sun Nov 4 18:15:16 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC