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

Comparing libev/ev.c (file contents):
Revision 1.56 by root, Sun Nov 4 15:58:49 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 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	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
		59	# endif
		60
		61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
		65	# endif
		66
		67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
		71	# endif
		72
		73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
		83	# endif
		84
33	#endif	85	#endif
34		86
35	#include <math.h>	87	#include <math.h>
36	#include <stdlib.h>	88	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	89	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	90	#include <stddef.h>
41		91
42	#include <stdio.h>	92	#include <stdio.h>
43		93
44	#include <assert.h>	94	#include <assert.h>
45	#include <errno.h>	95	#include <errno.h>
46	#include <sys/types.h>	96	#include <sys/types.h>
		97	#include <time.h>
		98
		99	#include <signal.h>
		100
47	#ifndef WIN32	101	#ifndef _WIN32
		102	# include <unistd.h>
		103	# include <sys/time.h>
48	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	110	# endif
50	#include <sys/time.h>	111	#endif
51	#include <time.h>
52		112
53	/**/	113	/**/
54		114
55	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
57	#endif	121	#endif
58		122
59	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
61	#endif	125	#endif
62		126
63	#ifndef EV_USEV_POLL	127	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
65	#endif	133	#endif
66		134
67	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
69	#endif	137	#endif
70		138
71	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
73	#endif	141	#endif
74		142
75	#ifndef EV_USE_REALTIME	143	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
77	#endif	145	#endif
78		146
79	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
80		154
81	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
84	#endif	158	#endif
…		…
86	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
89	#endif	163	#endif
90		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
91	/**/	169	/**/
92		170
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#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) */	172	#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 */	173	#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 */	174	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
97		175
		176	#ifdef EV_H
		177	# include EV_H
		178	#else
98	#include "ev.h"	179	# include "ev.h"
		180	#endif
99		181
100	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	184	# define inline static inline
103	#else	185	#else
104	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
105	# define inline static	187	# define inline static
106	#endif	188	#endif
107		189
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
110		192
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
114	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
117		202
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		204
		205	#ifdef _WIN32
		206	# include "ev_win32.c"
		207	#endif
		208
120	/*****************************************************************************/	209	/*****************************************************************************/
121		210
		211	static void (syserr_cb)(const char msg);
		212
		213	void ev_set_syserr_cb (void (cb)(const char msg))
		214	{
		215	syserr_cb = cb;
		216	}
		217
		218	static void
		219	syserr (const char *msg)
		220	{
		221	if (!msg)
		222	msg = "(libev) system error";
		223
		224	if (syserr_cb)
		225	syserr_cb (msg);
		226	else
		227	{
		228	perror (msg);
		229	abort ();
		230	}
		231	}
		232
		233	static void (alloc)(void *ptr, long size);
		234
		235	void ev_set_allocator (void (cb)(void *ptr, long size))
		236	{
		237	alloc = cb;
		238	}
		239
		240	static void *
		241	ev_realloc (void *ptr, long size)
		242	{
		243	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		244
		245	if (!ptr && size)
		246	{
		247	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		248	abort ();
		249	}
		250
		251	return ptr;
		252	}
		253
		254	#define ev_malloc(size) ev_realloc (0, (size))
		255	#define ev_free(ptr) ev_realloc ((ptr), 0)
		256
		257	/*****************************************************************************/
		258
122	typedef struct	259	typedef struct
123	{	260	{
124	struct ev_watcher_list *head;	261	WL head;
125	unsigned char events;	262	unsigned char events;
126	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
127	} ANFD;	267	} ANFD;
128		268
129	typedef struct	269	typedef struct
130	{	270	{
131	W w;	271	W w;
132	int events;	272	int events;
133	} ANPENDING;	273	} ANPENDING;
134		274
135	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
136		276
137	struct ev_loop	277	struct ev_loop
138	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
139	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
140	# include "ev_vars.h"	282	#include "ev_vars.h"
141	};
142	# undef VAR	283	#undef VAR
		284	};
143	# include "ev_wrap.h"	285	#include "ev_wrap.h"
		286
		287	static struct ev_loop default_loop_struct;
		288	struct ev_loop *ev_default_loop_ptr;
144		289
145	#else	290	#else
146		291
		292	ev_tstamp ev_rt_now;
147	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
148	# include "ev_vars.h"	294	#include "ev_vars.h"
149	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
150		298
151	#endif	299	#endif
152		300
153	/*****************************************************************************/	301	/*****************************************************************************/
154		302
155	inline ev_tstamp	303	ev_tstamp
156	ev_time (void)	304	ev_time (void)
157	{	305	{
158	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
159	struct timespec ts;	307	struct timespec ts;
160	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
179	#endif	327	#endif
180		328
181	return ev_time ();	329	return ev_time ();
182	}	330	}
183		331
		332	#if EV_MULTIPLICITY
184	ev_tstamp	333	ev_tstamp
185	ev_now (EV_P)	334	ev_now (EV_P)
186	{	335	{
187	return rt_now;	336	return ev_rt_now;
188	}	337	}
		338	#endif
189		339
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
191		341
192	#define array_needsize(base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
194	{ \	344	{ \
195	int newcnt = cur; \	345	int newcnt = cur; \
196	do \	346	do \
197	{ \	347	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	348	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	349	} \
200	while ((cnt) > newcnt); \	350	while ((cnt) > newcnt); \
201	\	351	\
202	base = realloc (base, sizeof (base) (newcnt)); \	352	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	353	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	354	cur = newcnt; \
205	}	355	}
		356
		357	#define array_slim(type,stem) \
		358	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		359	{ \
		360	stem ## max = array_roundsize (stem ## cnt >> 1); \
		361	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		363	}
		364
		365	#define array_free(stem, idx) \
		366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206		367
207	/*****************************************************************************/	368	/*****************************************************************************/
208		369
209	static void	370	static void
210	anfds_init (ANFD *base, int count)	371	anfds_init (ANFD *base, int count)
…		…
217		378
218	++base;	379	++base;
219	}	380	}
220	}	381	}
221		382
222	static void	383	void
223	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
224	{	385	{
225	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
226	{	389	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	391	return;
229	}	392	}
230		393
231	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	398	}
236		399
237	static void	400	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	402	{
240	int i;	403	int i;
241		404
242	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
244	}	407	}
245		408
246	static void	409	inline void
247	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
248	{	411	{
249	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	413	struct ev_io *w;
251		414
252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	415	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
253	{	416	{
254	int ev = w->events & events;	417	int ev = w->events & revents;
255		418
256	if (ev)	419	if (ev)
257	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
258	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
259	}	428	}
260		429
261	/*****************************************************************************/	430	/*****************************************************************************/
262		431
263	static void	432	inline void
264	fd_reify (EV_P)	433	fd_reify (EV_P)
265	{	434	{
266	int i;	435	int i;
267		436
268	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
274	int events = 0;	443	int events = 0;
275		444
276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	445	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
277	events \|= w->events;	446	events \|= w->events;
278		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
279	anfd->reify = 0;	457	anfd->reify = 0;
280		458
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	460	anfd->events = events;
285	}
286	}	461	}
287		462
288	fdchangecnt = 0;	463	fdchangecnt = 0;
289	}	464	}
290		465
291	static void	466	static void
292	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
293	{	468	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	469	if (expect_false (anfds [fd].reify))
295	return;	470	return;
296		471
297	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
298		473
299	++fdchangecnt;	474	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
301	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
302	}	477	}
303		478
304	static void	479	static void
305	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	482	struct ev_io *w;
308		483
309	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
310	{	485	{
311	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
313	}	488	}
		489	}
		490
		491	inline int
		492	fd_valid (int fd)
		493	{
		494	#ifdef _WIN32
		495	return _get_osfhandle (fd) != -1;
		496	#else
		497	return fcntl (fd, F_GETFD) != -1;
		498	#endif
314	}	499	}
315		500
316	/* called on EBADF to verify fds */	501	/* called on EBADF to verify fds */
317	static void	502	static void
318	fd_ebadf (EV_P)	503	fd_ebadf (EV_P)
319	{	504	{
320	int fd;	505	int fd;
321		506
322	for (fd = 0; fd < anfdmax; ++fd)	507	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	508	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	509	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	510	fd_kill (EV_A_ fd);
326	}	511	}
327		512
328	/* called on ENOMEM in select/poll to kill some fds and retry */	513	/* called on ENOMEM in select/poll to kill some fds and retry */
329	static void	514	static void
330	fd_enomem (EV_P)	515	fd_enomem (EV_P)
331	{	516	{
332	int fd = anfdmax;	517	int fd;
333		518
334	while (fd--)	519	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	520	if (anfds [fd].events)
336	{	521	{
337	close (fd);
338	fd_kill (EV_A_ fd);	522	fd_kill (EV_A_ fd);
339	return;	523	return;
340	}	524	}
341	}	525	}
342		526
343	/* susually called after fork if method needs to re-arm all fds from scratch */	527	/* usually called after fork if method needs to re-arm all fds from scratch */
344	static void	528	static void
345	fd_rearm_all (EV_P)	529	fd_rearm_all (EV_P)
346	{	530	{
347	int fd;	531	int fd;
348		532
349	/* this should be highly optimised to not do anything but set a flag */	533	/* this should be highly optimised to not do anything but set a flag */
350	for (fd = 0; fd < anfdmax; ++fd)	534	for (fd = 0; fd < anfdmax; ++fd)
351	if (anfds [fd].events)	535	if (anfds [fd].events)
352	{	536	{
353	anfds [fd].events = 0;	537	anfds [fd].events = 0;
354	fd_change (fd);	538	fd_change (EV_A_ fd);
355	}	539	}
356	}	540	}
357		541
358	/*****************************************************************************/	542	/*****************************************************************************/
359		543
…		…
363	WT w = heap [k];	547	WT w = heap [k];
364		548
365	while (k && heap [k >> 1]->at > w->at)	549	while (k && heap [k >> 1]->at > w->at)
366	{	550	{
367	heap [k] = heap [k >> 1];	551	heap [k] = heap [k >> 1];
368	heap [k]->active = k + 1;	552	((W)heap [k])->active = k + 1;
369	k >>= 1;	553	k >>= 1;
370	}	554	}
371		555
372	heap [k] = w;	556	heap [k] = w;
373	heap [k]->active = k + 1;	557	((W)heap [k])->active = k + 1;
374		558
375	}	559	}
376		560
377	static void	561	static void
378	downheap (WT *heap, int N, int k)	562	downheap (WT *heap, int N, int k)
…		…
388		572
389	if (w->at <= heap [j]->at)	573	if (w->at <= heap [j]->at)
390	break;	574	break;
391		575
392	heap [k] = heap [j];	576	heap [k] = heap [j];
393	heap [k]->active = k + 1;	577	((W)heap [k])->active = k + 1;
394	k = j;	578	k = j;
395	}	579	}
396		580
397	heap [k] = w;	581	heap [k] = w;
398	heap [k]->active = k + 1;	582	((W)heap [k])->active = k + 1;
		583	}
		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
399	}	590	}
400		591
401	/*****************************************************************************/	592	/*****************************************************************************/
402		593
403	typedef struct	594	typedef struct
404	{	595	{
405	struct ev_watcher_list *head;	596	WL head;
406	sig_atomic_t volatile gotsig;	597	sig_atomic_t volatile gotsig;
407	} ANSIG;	598	} ANSIG;
408		599
409	static ANSIG *signals;	600	static ANSIG *signals;
410	static int signalmax;	601	static int signalmax;
411		602
412	static int sigpipe [2];	603	static int sigpipe [2];
413	static sig_atomic_t volatile gotsig;	604	static sig_atomic_t volatile gotsig;
		605	static struct ev_io sigev;
414		606
415	static void	607	static void
416	signals_init (ANSIG *base, int count)	608	signals_init (ANSIG *base, int count)
417	{	609	{
418	while (count--)	610	while (count--)
…		…
425	}	617	}
426		618
427	static void	619	static void
428	sighandler (int signum)	620	sighandler (int signum)
429	{	621	{
		622	#if _WIN32
		623	signal (signum, sighandler);
		624	#endif
		625
430	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
431		627
432	if (!gotsig)	628	if (!gotsig)
433	{	629	{
434	int old_errno = errno;	630	int old_errno = errno;
…		…
436	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
437	errno = old_errno;	633	errno = old_errno;
438	}	634	}
439	}	635	}
440		636
		637	void
		638	ev_feed_signal_event (EV_P_ int signum)
		639	{
		640	WL w;
		641
		642	#if EV_MULTIPLICITY
		643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		644	#endif
		645
		646	--signum;
		647
		648	if (signum < 0 \|\| signum >= signalmax)
		649	return;
		650
		651	signals [signum].gotsig = 0;
		652
		653	for (w = signals [signum].head; w; w = w->next)
		654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		655	}
		656
441	static void	657	static void
442	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
443	{	659	{
444	struct ev_watcher_list *w;
445	int signum;	660	int signum;
446		661
447	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
448	gotsig = 0;	663	gotsig = 0;
449		664
450	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
451	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
452	{	667	ev_feed_signal_event (EV_A_ signum + 1);
453	signals [signum].gotsig = 0;	668	}
454		669
455	for (w = signals [signum].head; w; w = w->next)	670	static void
456	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
457	}	672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
458	}	680	}
459		681
460	static void	682	static void
461	siginit (EV_P)	683	siginit (EV_P)
462	{	684	{
463	#ifndef WIN32	685	fd_intern (sigpipe [0]);
464	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
465	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
466
467	/* rather than sort out wether we really need nb, set it */
468	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
469	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
470	#endif
471		687
472	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
473	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
474	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
475	}	691	}
476		692
477	/*****************************************************************************/	693	/*****************************************************************************/
478		694
		695	static struct ev_child *childs [PID_HASHSIZE];
		696
479	#ifndef WIN32	697	#ifndef _WIN32
		698
		699	static struct ev_signal childev;
480		700
481	#ifndef WCONTINUED	701	#ifndef WCONTINUED
482	# define WCONTINUED 0	702	# define WCONTINUED 0
483	#endif	703	#endif
484		704
…		…
488	struct ev_child *w;	708	struct ev_child *w;
489		709
490	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	710	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
491	if (w->pid == pid \|\| !w->pid)	711	if (w->pid == pid \|\| !w->pid)
492	{	712	{
493	w->priority = sw->priority; /* need to do it now */	713	ev_priority (w) = ev_priority (sw); /* need to do it now */
494	w->rpid = pid;	714	w->rpid = pid;
495	w->rstatus = status;	715	w->rstatus = status;
496	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
497	}	717	}
498	}	718	}
499		719
500	static void	720	static void
501	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
503	int pid, status;	723	int pid, status;
504		724
505	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
506	{	726	{
507	/* make sure we are called again until all childs have been reaped */	727	/* make sure we are called again until all childs have been reaped */
508	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
509		729
510	child_reap (EV_A_ sw, pid, pid, status);	730	child_reap (EV_A_ sw, pid, pid, status);
511	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
512	}	732	}
513	}	733	}
514		734
515	#endif	735	#endif
516		736
517	/*****************************************************************************/	737	/*****************************************************************************/
518		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
519	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
520	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
521	#endif	744	#endif
522	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
523	# include "ev_epoll.c"	746	# include "ev_epoll.c"
524	#endif	747	#endif
525	#if EV_USEV_POLL	748	#if EV_USE_POLL
526	# include "ev_poll.c"	749	# include "ev_poll.c"
527	#endif	750	#endif
528	#if EV_USE_SELECT	751	#if EV_USE_SELECT
529	# include "ev_select.c"	752	# include "ev_select.c"
530	#endif	753	#endif
…		…
543		766
544	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
545	static int	768	static int
546	enable_secure (void)	769	enable_secure (void)
547	{	770	{
548	#ifdef WIN32	771	#ifdef _WIN32
549	return 0;	772	return 0;
550	#else	773	#else
551	return getuid () != geteuid ()	774	return getuid () != geteuid ()
552	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
553	#endif	776	#endif
554	}	777	}
555		778
556	int	779	unsigned int
557	ev_method (EV_P)	780	ev_method (EV_P)
558	{	781	{
559	return method;	782	return method;
560	}	783	}
561		784
562	static void	785	static void
563	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
564	{	787	{
565	if (!method)	788	if (!method)
566	{	789	{
567	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
568	{	791	{
…		…
570	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
571	have_monotonic = 1;	794	have_monotonic = 1;
572	}	795	}
573	#endif	796	#endif
574		797
575	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
576	mn_now = get_clock ();	799	mn_now = get_clock ();
577	now_floor = mn_now;	800	now_floor = mn_now;
578	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
579		802
580	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
581	if (!enable_secure () && getenv ("LIBEV_METHODS"))
582	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
583	else	805
584	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
585		808
586	method = 0;	809	method = 0;
		810	#if EV_USE_PORT
		811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		812	#endif
587	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
588	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
589	#endif	815	#endif
590	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
591	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
592	#endif	818	#endif
593	#if EV_USEV_POLL	819	#if EV_USE_POLL
594	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
595	#endif	821	#endif
596	#if EV_USE_SELECT	822	#if EV_USE_SELECT
597	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
598	#endif	824	#endif
599	}
600	}
601		825
602	void	826	ev_init (&sigev, sigcb);
		827	ev_set_priority (&sigev, EV_MAXPRI);
		828	}
		829	}
		830
		831	static void
603	loop_destroy (EV_P)	832	loop_destroy (EV_P)
604	{	833	{
		834	int i;
		835
		836	#if EV_USE_PORT
		837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		838	#endif
605	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
606	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
607	#endif	841	#endif
608	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
609	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	843	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
610	#endif	844	#endif
611	#if EV_USEV_POLL	845	#if EV_USE_POLL
612	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	846	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
613	#endif	847	#endif
614	#if EV_USE_SELECT	848	#if EV_USE_SELECT
615	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	849	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
616	#endif	850	#endif
617		851
		852	for (i = NUMPRI; i--; )
		853	array_free (pending, [i]);
		854
		855	/* have to use the microsoft-never-gets-it-right macro */
		856	array_free (fdchange, EMPTY0);
		857	array_free (timer, EMPTY0);
		858	#if EV_PERIODICS
		859	array_free (periodic, EMPTY0);
		860	#endif
		861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
		864
618	method = 0;	865	method = 0;
619	/TODO/
620	}	866	}
621		867
622	void	868	static void
623	loop_fork (EV_P)	869	loop_fork (EV_P)
624	{	870	{
625	/TODO/	871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
626	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
627	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
628	#endif	879	#endif
629	#if EV_USE_KQUEUE	880
630	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	881	if (ev_is_active (&sigev))
631	#endif	882	{
		883	/* default loop */
		884
		885	ev_ref (EV_A);
		886	ev_io_stop (EV_A_ &sigev);
		887	close (sigpipe [0]);
		888	close (sigpipe [1]);
		889
		890	while (pipe (sigpipe))
		891	syserr ("(libev) error creating pipe");
		892
		893	siginit (EV_A);
		894	}
		895
		896	postfork = 0;
632	}	897	}
633		898
634	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
635	struct ev_loop *	900	struct ev_loop *
636	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
637	{	902	{
638	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	903	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
639		904
		905	memset (loop, 0, sizeof (struct ev_loop));
		906
640	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
641		908
642	if (ev_methods (EV_A))	909	if (ev_method (EV_A))
643	return loop;	910	return loop;
644		911
645	return 0;	912	return 0;
646	}	913	}
647		914
648	void	915	void
649	ev_loop_destroy (EV_P)	916	ev_loop_destroy (EV_P)
650	{	917	{
651	loop_destroy (EV_A);	918	loop_destroy (EV_A);
652	free (loop);	919	ev_free (loop);
653	}	920	}
654		921
655	void	922	void
656	ev_loop_fork (EV_P)	923	ev_loop_fork (EV_P)
657	{	924	{
658	loop_fork (EV_A);	925	postfork = 1;
659	}	926	}
660		927
661	#endif	928	#endif
662		929
663	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
664	struct ev_loop default_loop_struct;
665	static struct ev_loop *default_loop;
666
667	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
668	#else	933	#else
669	static int default_loop;
670
671	int	934	int
		935	ev_default_loop (unsigned int flags)
672	#endif	936	#endif
673	ev_default_loop (int methods)
674	{	937	{
675	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
676	if (pipe (sigpipe))	939	if (pipe (sigpipe))
677	return 0;	940	return 0;
678		941
679	if (!default_loop)	942	if (!ev_default_loop_ptr)
680	{	943	{
681	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
682	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
683	#else	946	#else
684	default_loop = 1;	947	ev_default_loop_ptr = 1;
685	#endif	948	#endif
686		949
687	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
688		951
689	if (ev_method (EV_A))	952	if (ev_method (EV_A))
690	{	953	{
691	ev_watcher_init (&sigev, sigcb);
692	ev_set_priority (&sigev, EV_MAXPRI);
693	siginit (EV_A);	954	siginit (EV_A);
694		955
695	#ifndef WIN32	956	#ifndef _WIN32
696	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
697	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
698	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
699	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
700	#endif	961	#endif
701	}	962	}
702	else	963	else
703	default_loop = 0;	964	ev_default_loop_ptr = 0;
704	}	965	}
705		966
706	return default_loop;	967	return ev_default_loop_ptr;
707	}	968	}
708		969
709	void	970	void
710	ev_default_destroy (void)	971	ev_default_destroy (void)
711	{	972	{
		973	#if EV_MULTIPLICITY
712	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
		975	#endif
713		976
		977	#ifndef _WIN32
714	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
715	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
		980	#endif
716		981
717	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
718	ev_io_stop (EV_A_ &sigev);	983	ev_io_stop (EV_A_ &sigev);
719		984
720	close (sigpipe [0]); sigpipe [0] = 0;	985	close (sigpipe [0]); sigpipe [0] = 0;
…		…
722		987
723	loop_destroy (EV_A);	988	loop_destroy (EV_A);
724	}	989	}
725		990
726	void	991	void
727	ev_default_fork (EV_P)	992	ev_default_fork (void)
728	{	993	{
729	loop_fork (EV_A);	994	#if EV_MULTIPLICITY
		995	struct ev_loop *loop = ev_default_loop_ptr;
		996	#endif
730		997
731	ev_io_stop (EV_A_ &sigev);	998	if (method)
732	close (sigpipe [0]);	999	postfork = 1;
733	close (sigpipe [1]);
734	pipe (sigpipe);
735
736	ev_ref (EV_A); /* signal watcher */
737	siginit (EV_A);
738	}	1000	}
739		1001
740	/*****************************************************************************/	1002	/*****************************************************************************/
741		1003
742	static void	1004	static int
		1005	any_pending (EV_P)
		1006	{
		1007	int pri;
		1008
		1009	for (pri = NUMPRI; pri--; )
		1010	if (pendingcnt [pri])
		1011	return 1;
		1012
		1013	return 0;
		1014	}
		1015
		1016	inline void
743	call_pending (EV_P)	1017	call_pending (EV_P)
744	{	1018	{
745	int pri;	1019	int pri;
746		1020
747	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
748	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
749	{	1023	{
750	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
751		1025
752	if (p->w)	1026	if (expect_true (p->w))
753	{	1027	{
754	p->w->pending = 0;	1028	p->w->pending = 0;
755	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
756	}	1030	}
757	}	1031	}
758	}	1032	}
759		1033
760	static void	1034	inline void
761	timers_reify (EV_P)	1035	timers_reify (EV_P)
762	{	1036	{
763	while (timercnt && timers [0]->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
764	{	1038	{
765	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
		1040
		1041	assert (("inactive timer on timer heap detected", ev_is_active (w)));
766		1042
767	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
768	if (w->repeat)	1044	if (w->repeat)
769	{	1045	{
770	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
771	w->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
772	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
773	}	1053	}
774	else	1054	else
775	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
776		1056
777	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
778	}	1058	}
779	}	1059	}
780		1060
781	static void	1061	#if EV_PERIODICS
		1062	inline void
782	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
783	{	1064	{
784	while (periodiccnt && periodics [0]->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
785	{	1066	{
786	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
787		1068
		1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1070
788	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
789	if (w->interval)	1072	if (w->reschedule_cb)
790	{	1073	{
		1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1076	downheap ((WT *)periodics, periodiccnt, 0);
		1077	}
		1078	else if (w->interval)
		1079	{
791	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
792	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
793	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
794	}	1083	}
795	else	1084	else
796	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
797		1086
798	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
799	}	1088	}
800	}	1089	}
801		1090
802	static void	1091	static void
803	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
807	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
808	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
809	{	1098	{
810	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
811		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
812	if (w->interval)	1103	else if (w->interval)
813	{
814	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
815
816	if (fabs (diff) >= 1e-4)
817	{
818	ev_periodic_stop (EV_A_ w);
819	ev_periodic_start (EV_A_ w);
820
821	i = 0; /* restart loop, inefficient, but time jumps should be rare */
822	}
823	}
824	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
825	}	1110	}
		1111	#endif
826		1112
827	inline int	1113	inline int
828	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
829	{	1115	{
830	mn_now = get_clock ();	1116	mn_now = get_clock ();
831		1117
832	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
833	{	1119	{
834	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
835	return 0;	1121	return 0;
836	}	1122	}
837	else	1123	else
838	{	1124	{
839	now_floor = mn_now;	1125	now_floor = mn_now;
840	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
841	return 1;	1127	return 1;
842	}	1128	}
843	}	1129	}
844		1130
845	static void	1131	inline void
846	time_update (EV_P)	1132	time_update (EV_P)
847	{	1133	{
848	int i;	1134	int i;
849		1135
850	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
854	{	1140	{
855	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
856		1142
857	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
858	{	1144	{
859	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
860		1146
861	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
862	return; /* all is well */	1148	return; /* all is well */
863		1149
864	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
865	mn_now = get_clock ();	1151	mn_now = get_clock ();
866	now_floor = mn_now;	1152	now_floor = mn_now;
867	}	1153	}
868		1154
		1155	# if EV_PERIODICS
869	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
870	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
871	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
872	}	1160	}
873	}	1161	}
874	else	1162	else
875	#endif	1163	#endif
876	{	1164	{
877	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
878		1166
879	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
880	{	1168	{
		1169	#if EV_PERIODICS
881	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
882		1172
883	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
884	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
885	timers [i]->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
886	}	1176	}
887		1177
888	mn_now = rt_now;	1178	mn_now = ev_rt_now;
889	}	1179	}
890	}	1180	}
891		1181
892	void	1182	void
893	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
907	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
908	{	1198	{
909	double block;	1199	double block;
910	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
911		1201
912	do	1202	while (activecnt)
913	{	1203	{
914	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
915	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
916	{	1206	{
917	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
918	call_pending (EV_A);	1208	call_pending (EV_A);
919	}	1209	}
920		1210
		1211	/* we might have forked, so reify kernel state if necessary */
		1212	if (expect_false (postfork))
		1213	loop_fork (EV_A);
		1214
921	/* update fd-related kernel structures */	1215	/* update fd-related kernel structures */
922	fd_reify (EV_A);	1216	fd_reify (EV_A);
923		1217
924	/* calculate blocking time */	1218	/* calculate blocking time */
925		1219
926	/* we only need this for !monotonic clockor timers, but as we basically	1220	/* we only need this for !monotonic clock or timers, but as we basically
927	always have timers, we just calculate it always */	1221	always have timers, we just calculate it always */
928	#if EV_USE_MONOTONIC	1222	#if EV_USE_MONOTONIC
929	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
930	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
931	else	1225	else
932	#endif	1226	#endif
933	{	1227	{
934	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
935	mn_now = rt_now;	1229	mn_now = ev_rt_now;
936	}	1230	}
937		1231
938	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
939	block = 0.;	1233	block = 0.;
940	else	1234	else
941	{	1235	{
942	block = MAX_BLOCKTIME;	1236	block = MAX_BLOCKTIME;
943		1237
944	if (timercnt)	1238	if (timercnt)
945	{	1239	{
946	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
947	if (block > to) block = to;	1241	if (block > to) block = to;
948	}	1242	}
949		1243
		1244	#if EV_PERIODICS
950	if (periodiccnt)	1245	if (periodiccnt)
951	{	1246	{
952	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
953	if (block > to) block = to;	1248	if (block > to) block = to;
954	}	1249	}
		1250	#endif
955		1251
956	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
957	}	1253	}
958		1254
959	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
960		1256
961	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
962	time_update (EV_A);	1258	time_update (EV_A);
963		1259
964	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
965	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
966	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
967		1265
968	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
969	if (!pendingcnt)	1267	if (idlecnt && !any_pending (EV_A))
970	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
971		1269
972	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
973	if (checkcnt)	1271	if (expect_false (checkcnt))
974	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
975		1273
976	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
977	}	1278	}
978	while (activecnt && !loop_done);
979		1279
980	if (loop_done != 2)	1280	if (loop_done != 2)
981	loop_done = 0;	1281	loop_done = 0;
982	}	1282	}
983		1283
…		…
1043	void	1343	void
1044	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1045	{	1345	{
1046	int fd = w->fd;	1346	int fd = w->fd;
1047		1347
1048	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1049	return;	1349	return;
1050		1350
1051	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1052		1352
1053	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
1054	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1055	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1056		1356
1057	fd_change (EV_A_ fd);	1357	fd_change (EV_A_ fd);
1058	}	1358	}
1059		1359
1060	void	1360	void
1061	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1062	{	1362	{
1063	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1064	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1065	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1066		1368
1067	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1068	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1069		1371
1070	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1071	}	1373	}
1072		1374
1073	void	1375	void
1074	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1075	{	1377	{
1076	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1077	return;	1379	return;
1078		1380
1079	w->at += mn_now;	1381	((WT)w)->at += mn_now;
1080		1382
1081	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1082		1384
1083	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1084	array_needsize (timers, timermax, timercnt, );	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1085	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1086	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
		1389
		1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1087	}	1391	}
1088		1392
1089	void	1393	void
1090	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1091	{	1395	{
1092	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1093	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1094	return;	1398	return;
1095		1399
		1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1401
1096	if (w->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1097	{	1403	{
1098	timers [w->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1099	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1100	}	1406	}
1101		1407
1102	w->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1103		1409
1104	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1105	}	1411	}
1106		1412
1107	void	1413	void
…		…
1109	{	1415	{
1110	if (ev_is_active (w))	1416	if (ev_is_active (w))
1111	{	1417	{
1112	if (w->repeat)	1418	if (w->repeat)
1113	{	1419	{
1114	w->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1115	downheap ((WT *)timers, timercnt, w->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1116	}	1422	}
1117	else	1423	else
1118	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1119	}	1425	}
1120	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1121	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1122	}	1431	}
1123		1432
		1433	#if EV_PERIODICS
1124	void	1434	void
1125	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1126	{	1436	{
1127	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1128	return;	1438	return;
1129		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1130	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1131
1132	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1133	if (w->interval)
1134	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1135		1448
1136	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1137	array_needsize (periodics, periodicmax, periodiccnt, );	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1138	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1139	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
		1453
		1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1140	}	1455	}
1141		1456
1142	void	1457	void
1143	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1144	{	1459	{
1145	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1146	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1147	return;	1462	return;
1148		1463
		1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1465
1149	if (w->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1150	{	1467	{
1151	periodics [w->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1152	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1153	}	1470	}
1154		1471
1155	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1156	}	1473	}
1157		1474
1158	void	1475	void
		1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1477	{
		1478	/* TODO: use adjustheap and recalculation */
		1479	ev_periodic_stop (EV_A_ w);
		1480	ev_periodic_start (EV_A_ w);
		1481	}
		1482	#endif
		1483
		1484	void
1159	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1160	{	1486	{
1161	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1162	return;	1488	return;
1163		1489
1164	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1165	array_needsize (idles, idlemax, idlecnt, );	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1166	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1167	}	1493	}
1168		1494
1169	void	1495	void
1170	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1171	{	1497	{
1172	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1173	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1174	return;	1500	return;
1175		1501
1176	idles [w->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1177	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1178	}	1504	}
1179		1505
1180	void	1506	void
1181	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1182	{	1508	{
1183	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1184	return;	1510	return;
1185		1511
1186	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1187	array_needsize (prepares, preparemax, preparecnt, );	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1188	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1189	}	1515	}
1190		1516
1191	void	1517	void
1192	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1193	{	1519	{
1194	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1195	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1196	return;	1522	return;
1197		1523
1198	prepares [w->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1199	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1200	}	1526	}
1201		1527
1202	void	1528	void
1203	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1204	{	1530	{
1205	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1206	return;	1532	return;
1207		1533
1208	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1209	array_needsize (checks, checkmax, checkcnt, );	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1210	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1211	}	1537	}
1212		1538
1213	void	1539	void
1214	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1215	{	1541	{
1216	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1217	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1218	return;	1544	return;
1219		1545
1220	checks [w->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1221	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1222	}	1548	}
1223		1549
1224	#ifndef SA_RESTART	1550	#ifndef SA_RESTART
1225	# define SA_RESTART 0	1551	# define SA_RESTART 0
…		…
1227		1553
1228	void	1554	void
1229	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1230	{	1556	{
1231	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1232	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1233	#endif	1559	#endif
1234	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1235	return;	1561	return;
1236		1562
1237	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1238		1564
1239	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1240	array_needsize (signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1241	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1242		1568
1243	if (!w->next)	1569	if (!((WL)w)->next)
1244	{	1570	{
		1571	#if _WIN32
		1572	signal (w->signum, sighandler);
		1573	#else
1245	struct sigaction sa;	1574	struct sigaction sa;
1246	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1247	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
1248	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1577	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1249	sigaction (w->signum, &sa, 0);	1578	sigaction (w->signum, &sa, 0);
		1579	#endif
1250	}	1580	}
1251	}	1581	}
1252		1582
1253	void	1583	void
1254	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1255	{	1585	{
1256	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1257	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1258	return;	1588	return;
1259		1589
1260	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1261	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1262		1592
…		…
1266		1596
1267	void	1597	void
1268	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1269	{	1599	{
1270	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1271	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1272	#endif	1602	#endif
1273	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1274	return;	1604	return;
1275		1605
1276	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1277	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1278	}	1608	}
1279		1609
1280	void	1610	void
1281	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1282	{	1612	{
1283	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1284	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1285	return;	1615	return;
1286		1616
1287	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1288	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1289	}	1619	}
…		…
1304	void (cb)(int revents, void arg) = once->cb;	1634	void (cb)(int revents, void arg) = once->cb;
1305	void *arg = once->arg;	1635	void *arg = once->arg;
1306		1636
1307	ev_io_stop (EV_A_ &once->io);	1637	ev_io_stop (EV_A_ &once->io);
1308	ev_timer_stop (EV_A_ &once->to);	1638	ev_timer_stop (EV_A_ &once->to);
1309	free (once);	1639	ev_free (once);
1310		1640
1311	cb (revents, arg);	1641	cb (revents, arg);
1312	}	1642	}
1313		1643
1314	static void	1644	static void
…		…
1324	}	1654	}
1325		1655
1326	void	1656	void
1327	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1328	{	1658	{
1329	struct ev_once *once = malloc (sizeof (struct ev_once));	1659	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1330		1660
1331	if (!once)	1661	if (expect_false (!once))
		1662	{
1332	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1333	else	1664	return;
1334	{	1665	}
		1666
1335	once->cb = cb;	1667	once->cb = cb;
1336	once->arg = arg;	1668	once->arg = arg;
1337		1669
1338	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1339	if (fd >= 0)	1671	if (fd >= 0)
1340	{	1672	{
1341	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1342	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1343	}	1675	}
1344		1676
1345	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1346	if (timeout >= 0.)	1678	if (timeout >= 0.)
1347	{	1679	{
1348	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1349	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1350	}
1351	}	1682	}
1352	}	1683	}
1353		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.56 by root, Sun Nov 4 15:58:49 2007 UTC vs. Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.56 by root, Sun Nov 4 15:58:49 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC