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

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 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"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	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
37	# endif	53	# endif
38		54
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
41	# endif	59	# endif
42		60
43	# if HAVE_POLL && HAVE_POLL_H	61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
45	# endif	65	# endif
46		66
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
49	# endif	71	# endif
50		72
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	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
53	# endif	83	# endif
54		84
55	#endif	85	#endif
56		86
57	#include <math.h>	87	#include <math.h>
58	#include <stdlib.h>	88	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	89	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	90	#include <stddef.h>
63		91
64	#include <stdio.h>	92	#include <stdio.h>
65		93
66	#include <assert.h>	94	#include <assert.h>
67	#include <errno.h>	95	#include <errno.h>
68	#include <sys/types.h>	96	#include <sys/types.h>
		97	#include <time.h>
		98
		99	#include <signal.h>
		100
69	#ifndef WIN32	101	#ifndef _WIN32
		102	# include <unistd.h>
		103	# include <sys/time.h>
70	# 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
71	#endif	110	# endif
72	#include <sys/time.h>	111	#endif
73	#include <time.h>
74		112
75	/**/	113	/**/
76		114
77	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
78	# 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
79	#endif	121	#endif
80		122
81	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
83	#endif	125	#endif
84		126
85	#ifndef EV_USE_POLL	127	#ifndef EV_USE_POLL
86	# define EV_USE_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
87	#endif	133	#endif
88		134
89	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
91	#endif	137	#endif
92		138
93	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
95	#endif	141	#endif
96		142
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	143	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
107	#endif	145	#endif
108		146
109	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
110		154
111	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
112	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
113	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
114	#endif	158	#endif
…		…
116	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
119	#endif	163	#endif
120		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
121	/**/	169	/**/
122		170
123	#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) */
124	#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) */
125	#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 */
126	/#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 */
127		175
		176	#ifdef EV_H
		177	# include EV_H
		178	#else
128	#include "ev.h"	179	# include "ev.h"
		180	#endif
129		181
130	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	184	# define inline static inline
133	#else	185	#else
134	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
135	# define inline static	187	# define inline static
136	#endif	188	#endif
137		189
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
140		192
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
144	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
147		202
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		204
		205	#ifdef _WIN32
		206	# include "ev_win32.c"
		207	#endif
		208
150	/*****************************************************************************/	209	/*****************************************************************************/
151		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
152	typedef struct	259	typedef struct
153	{	260	{
154	struct ev_watcher_list *head;	261	WL head;
155	unsigned char events;	262	unsigned char events;
156	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
157	} ANFD;	267	} ANFD;
158		268
159	typedef struct	269	typedef struct
160	{	270	{
161	W w;	271	W w;
162	int events;	272	int events;
163	} ANPENDING;	273	} ANPENDING;
164		274
165	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
166		276
167	struct ev_loop	277	struct ev_loop
168	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	282	#include "ev_vars.h"
171	};
172	# undef VAR	283	#undef VAR
		284	};
173	# 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;
174		289
175	#else	290	#else
176		291
		292	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	294	#include "ev_vars.h"
179	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
180		298
181	#endif	299	#endif
182		300
183	/*****************************************************************************/	301	/*****************************************************************************/
184		302
185	inline ev_tstamp	303	ev_tstamp
186	ev_time (void)	304	ev_time (void)
187	{	305	{
188	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
189	struct timespec ts;	307	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	327	#endif
210		328
211	return ev_time ();	329	return ev_time ();
212	}	330	}
213		331
		332	#if EV_MULTIPLICITY
214	ev_tstamp	333	ev_tstamp
215	ev_now (EV_P)	334	ev_now (EV_P)
216	{	335	{
217	return rt_now;	336	return ev_rt_now;
218	}	337	}
		338	#endif
219		339
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
221		341
222	#define array_needsize(base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
224	{ \	344	{ \
225	int newcnt = cur; \	345	int newcnt = cur; \
226	do \	346	do \
227	{ \	347	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	348	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	349	} \
230	while ((cnt) > newcnt); \	350	while ((cnt) > newcnt); \
231	\	351	\
232	base = realloc (base, sizeof (base) (newcnt)); \	352	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	353	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	354	cur = newcnt; \
235	}	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;
236		367
237	/*****************************************************************************/	368	/*****************************************************************************/
238		369
239	static void	370	static void
240	anfds_init (ANFD *base, int count)	371	anfds_init (ANFD *base, int count)
…		…
247		378
248	++base;	379	++base;
249	}	380	}
250	}	381	}
251		382
252	static void	383	void
253	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
254	{	385	{
255	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
256	{	389	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	391	return;
259	}	392	}
260		393
261	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	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);
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	398	}
266		399
267	static void	400	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	402	{
270	int i;	403	int i;
271		404
272	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
274	}	407	}
275		408
276	static void	409	inline void
277	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
278	{	411	{
279	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	413	struct ev_io *w;
281		414
282	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)
283	{	416	{
284	int ev = w->events & events;	417	int ev = w->events & revents;
285		418
286	if (ev)	419	if (ev)
287	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
288	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
289	}	428	}
290		429
291	/*****************************************************************************/	430	/*****************************************************************************/
292		431
293	static void	432	inline void
294	fd_reify (EV_P)	433	fd_reify (EV_P)
295	{	434	{
296	int i;	435	int i;
297		436
298	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
304	int events = 0;	443	int events = 0;
305		444
306	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)
307	events \|= w->events;	446	events \|= w->events;
308		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
309	anfd->reify = 0;	457	anfd->reify = 0;
310		458
311	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
312	anfd->events = events;	460	anfd->events = events;
313	}	461	}
…		…
316	}	464	}
317		465
318	static void	466	static void
319	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
320	{	468	{
321	if (anfds [fd].reify \|\| fdchangecnt < 0)	469	if (expect_false (anfds [fd].reify))
322	return;	470	return;
323		471
324	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
325		473
326	++fdchangecnt;	474	++fdchangecnt;
327	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
328	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
329	}	477	}
330		478
331	static void	479	static void
332	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
334	struct ev_io *w;	482	struct ev_io *w;
335		483
336	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
337	{	485	{
338	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
339	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);
340	}	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
341	}	499	}
342		500
343	/* called on EBADF to verify fds */	501	/* called on EBADF to verify fds */
344	static void	502	static void
345	fd_ebadf (EV_P)	503	fd_ebadf (EV_P)
346	{	504	{
347	int fd;	505	int fd;
348		506
349	for (fd = 0; fd < anfdmax; ++fd)	507	for (fd = 0; fd < anfdmax; ++fd)
350	if (anfds [fd].events)	508	if (anfds [fd].events)
351	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	509	if (!fd_valid (fd) == -1 && errno == EBADF)
352	fd_kill (EV_A_ fd);	510	fd_kill (EV_A_ fd);
353	}	511	}
354		512
355	/* 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 */
356	static void	514	static void
…		…
359	int fd;	517	int fd;
360		518
361	for (fd = anfdmax; fd--; )	519	for (fd = anfdmax; fd--; )
362	if (anfds [fd].events)	520	if (anfds [fd].events)
363	{	521	{
364	close (fd);
365	fd_kill (EV_A_ fd);	522	fd_kill (EV_A_ fd);
366	return;	523	return;
367	}	524	}
368	}	525	}
369		526
370	/* 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 */
371	static void	528	static void
372	fd_rearm_all (EV_P)	529	fd_rearm_all (EV_P)
373	{	530	{
374	int fd;	531	int fd;
375		532
…		…
423		580
424	heap [k] = w;	581	heap [k] = w;
425	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
426	}	583	}
427		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
		590	}
		591
428	/*****************************************************************************/	592	/*****************************************************************************/
429		593
430	typedef struct	594	typedef struct
431	{	595	{
432	struct ev_watcher_list *head;	596	WL head;
433	sig_atomic_t volatile gotsig;	597	sig_atomic_t volatile gotsig;
434	} ANSIG;	598	} ANSIG;
435		599
436	static ANSIG *signals;	600	static ANSIG *signals;
437	static int signalmax;	601	static int signalmax;
…		…
453	}	617	}
454		618
455	static void	619	static void
456	sighandler (int signum)	620	sighandler (int signum)
457	{	621	{
		622	#if _WIN32
		623	signal (signum, sighandler);
		624	#endif
		625
458	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
459		627
460	if (!gotsig)	628	if (!gotsig)
461	{	629	{
462	int old_errno = errno;	630	int old_errno = errno;
…		…
464	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
465	errno = old_errno;	633	errno = old_errno;
466	}	634	}
467	}	635	}
468		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
469	static void	657	static void
470	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
471	{	659	{
472	struct ev_watcher_list *w;
473	int signum;	660	int signum;
474		661
475	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
476	gotsig = 0;	663	gotsig = 0;
477		664
478	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
479	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
480	{	667	ev_feed_signal_event (EV_A_ signum + 1);
481	signals [signum].gotsig = 0;	668	}
482		669
483	for (w = signals [signum].head; w; w = w->next)	670	static void
484	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
485	}	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
486	}	680	}
487		681
488	static void	682	static void
489	siginit (EV_P)	683	siginit (EV_P)
490	{	684	{
491	#ifndef WIN32	685	fd_intern (sigpipe [0]);
492	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
493	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
494
495	/* rather than sort out wether we really need nb, set it */
496	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
497	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
498	#endif
499		687
500	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
501	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
502	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
503	}	691	}
504		692
505	/*****************************************************************************/	693	/*****************************************************************************/
506		694
507	#ifndef WIN32
508
509	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
		696
		697	#ifndef _WIN32
		698
510	static struct ev_signal childev;	699	static struct ev_signal childev;
511		700
512	#ifndef WCONTINUED	701	#ifndef WCONTINUED
513	# define WCONTINUED 0	702	# define WCONTINUED 0
514	#endif	703	#endif
…		…
522	if (w->pid == pid \|\| !w->pid)	711	if (w->pid == pid \|\| !w->pid)
523	{	712	{
524	ev_priority (w) = ev_priority (sw); /* need to do it now */	713	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	714	w->rpid = pid;
526	w->rstatus = status;	715	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
528	}	717	}
529	}	718	}
530		719
531	static void	720	static void
532	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
534	int pid, status;	723	int pid, status;
535		724
536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
537	{	726	{
538	/* 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 */
539	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
540		729
541	child_reap (EV_A_ sw, pid, pid, status);	730	child_reap (EV_A_ sw, pid, pid, status);
542	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 */
543	}	732	}
544	}	733	}
545		734
546	#endif	735	#endif
547		736
548	/*****************************************************************************/	737	/*****************************************************************************/
549		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
550	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
551	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
552	#endif	744	#endif
553	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
554	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
574		766
575	/* 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 */
576	static int	768	static int
577	enable_secure (void)	769	enable_secure (void)
578	{	770	{
579	#ifdef WIN32	771	#ifdef _WIN32
580	return 0;	772	return 0;
581	#else	773	#else
582	return getuid () != geteuid ()	774	return getuid () != geteuid ()
583	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
584	#endif	776	#endif
585	}	777	}
586		778
587	int	779	unsigned int
588	ev_method (EV_P)	780	ev_method (EV_P)
589	{	781	{
590	return method;	782	return method;
591	}	783	}
592		784
593	static void	785	static void
594	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
595	{	787	{
596	if (!method)	788	if (!method)
597	{	789	{
598	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
599	{	791	{
…		…
601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
602	have_monotonic = 1;	794	have_monotonic = 1;
603	}	795	}
604	#endif	796	#endif
605		797
606	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
607	mn_now = get_clock ();	799	mn_now = get_clock ();
608	now_floor = mn_now;	800	now_floor = mn_now;
609	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
610		802
611	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
612	if (!enable_secure () && getenv ("LIBEV_METHODS"))
613	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
614	else	805
615	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
616		808
617	method = 0;	809	method = 0;
618	#if EV_USE_WIN32	810	#if EV_USE_PORT
619	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
620	#endif	812	#endif
621	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
623	#endif	815	#endif
624	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
626	#endif	818	#endif
627	#if EV_USE_POLL	819	#if EV_USE_POLL
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
629	#endif	821	#endif
630	#if EV_USE_SELECT	822	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
632	#endif	824	#endif
633	}
634	}
635		825
636	void	826	ev_init (&sigev, sigcb);
		827	ev_set_priority (&sigev, EV_MAXPRI);
		828	}
		829	}
		830
		831	static void
637	loop_destroy (EV_P)	832	loop_destroy (EV_P)
638	{	833	{
639	#if EV_USE_WIN32	834	int i;
		835
		836	#if EV_USE_PORT
640	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
641	#endif	838	#endif
642	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
643	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
644	#endif	841	#endif
645	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
650	#endif	847	#endif
651	#if EV_USE_SELECT	848	#if EV_USE_SELECT
652	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	849	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
653	#endif	850	#endif
654		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
655	method = 0;	865	method = 0;
656	/TODO/
657	}	866	}
658		867
659	void	868	static void
660	loop_fork (EV_P)	869	loop_fork (EV_P)
661	{	870	{
662	/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
663	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
664	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
665	#endif	879	#endif
666	#if EV_USE_KQUEUE	880
667	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	881	if (ev_is_active (&sigev))
668	#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;
669	}	897	}
670		898
671	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
672	struct ev_loop *	900	struct ev_loop *
673	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
674	{	902	{
675	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));
676		904
		905	memset (loop, 0, sizeof (struct ev_loop));
		906
677	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
678		908
679	if (ev_method (EV_A))	909	if (ev_method (EV_A))
680	return loop;	910	return loop;
681		911
682	return 0;	912	return 0;
…		…
684		914
685	void	915	void
686	ev_loop_destroy (EV_P)	916	ev_loop_destroy (EV_P)
687	{	917	{
688	loop_destroy (EV_A);	918	loop_destroy (EV_A);
689	free (loop);	919	ev_free (loop);
690	}	920	}
691		921
692	void	922	void
693	ev_loop_fork (EV_P)	923	ev_loop_fork (EV_P)
694	{	924	{
695	loop_fork (EV_A);	925	postfork = 1;
696	}	926	}
697		927
698	#endif	928	#endif
699		929
700	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
701	struct ev_loop default_loop_struct;
702	static struct ev_loop *default_loop;
703
704	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
705	#else	933	#else
706	static int default_loop;
707
708	int	934	int
		935	ev_default_loop (unsigned int flags)
709	#endif	936	#endif
710	ev_default_loop (int methods)
711	{	937	{
712	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
713	if (pipe (sigpipe))	939	if (pipe (sigpipe))
714	return 0;	940	return 0;
715		941
716	if (!default_loop)	942	if (!ev_default_loop_ptr)
717	{	943	{
718	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
719	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
720	#else	946	#else
721	default_loop = 1;	947	ev_default_loop_ptr = 1;
722	#endif	948	#endif
723		949
724	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
725		951
726	if (ev_method (EV_A))	952	if (ev_method (EV_A))
727	{	953	{
728	ev_watcher_init (&sigev, sigcb);
729	ev_set_priority (&sigev, EV_MAXPRI);
730	siginit (EV_A);	954	siginit (EV_A);
731		955
732	#ifndef WIN32	956	#ifndef _WIN32
733	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
734	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
735	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
736	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
737	#endif	961	#endif
738	}	962	}
739	else	963	else
740	default_loop = 0;	964	ev_default_loop_ptr = 0;
741	}	965	}
742		966
743	return default_loop;	967	return ev_default_loop_ptr;
744	}	968	}
745		969
746	void	970	void
747	ev_default_destroy (void)	971	ev_default_destroy (void)
748	{	972	{
749	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
750	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
751	#endif	975	#endif
752		976
		977	#ifndef _WIN32
753	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
754	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
		980	#endif
755		981
756	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
757	ev_io_stop (EV_A_ &sigev);	983	ev_io_stop (EV_A_ &sigev);
758		984
759	close (sigpipe [0]); sigpipe [0] = 0;	985	close (sigpipe [0]); sigpipe [0] = 0;
…		…
764		990
765	void	991	void
766	ev_default_fork (void)	992	ev_default_fork (void)
767	{	993	{
768	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
769	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
770	#endif	996	#endif
771		997
772	loop_fork (EV_A);	998	if (method)
773		999	postfork = 1;
774	ev_io_stop (EV_A_ &sigev);
775	close (sigpipe [0]);
776	close (sigpipe [1]);
777	pipe (sigpipe);
778
779	ev_ref (EV_A); /* signal watcher */
780	siginit (EV_A);
781	}	1000	}
782		1001
783	/*****************************************************************************/	1002	/*****************************************************************************/
784		1003
785	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
786	call_pending (EV_P)	1017	call_pending (EV_P)
787	{	1018	{
788	int pri;	1019	int pri;
789		1020
790	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
791	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
792	{	1023	{
793	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
794		1025
795	if (p->w)	1026	if (expect_true (p->w))
796	{	1027	{
797	p->w->pending = 0;	1028	p->w->pending = 0;
798		1029	EV_CB_INVOKE (p->w, p->events);
799	((void (*)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
800	}	1030	}
801	}	1031	}
802	}	1032	}
803		1033
804	static void	1034	inline void
805	timers_reify (EV_P)	1035	timers_reify (EV_P)
806	{	1036	{
807	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
808	{	1038	{
809	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
812		1042
813	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
814	if (w->repeat)	1044	if (w->repeat)
815	{	1045	{
816	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
817	((WT)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
818	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
819	}	1053	}
820	else	1054	else
821	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
822		1056
823	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
824	}	1058	}
825	}	1059	}
826		1060
827	static void	1061	#if EV_PERIODICS
		1062	inline void
828	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
829	{	1064	{
830	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
831	{	1066	{
832	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
833		1068
834	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
835		1070
836	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
837	if (w->interval)	1072	if (w->reschedule_cb)
838	{	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	{
839	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
840	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
841	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
842	}	1083	}
843	else	1084	else
844	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
845		1086
846	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
847	}	1088	}
848	}	1089	}
849		1090
850	static void	1091	static void
851	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
855	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
856	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
857	{	1098	{
858	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
859		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
860	if (w->interval)	1103	else if (w->interval)
861	{
862	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
863
864	if (fabs (diff) >= 1e-4)
865	{
866	ev_periodic_stop (EV_A_ w);
867	ev_periodic_start (EV_A_ w);
868
869	i = 0; /* restart loop, inefficient, but time jumps should be rare */
870	}
871	}
872	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
873	}	1110	}
		1111	#endif
874		1112
875	inline int	1113	inline int
876	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
877	{	1115	{
878	mn_now = get_clock ();	1116	mn_now = get_clock ();
879		1117
880	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
881	{	1119	{
882	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
883	return 0;	1121	return 0;
884	}	1122	}
885	else	1123	else
886	{	1124	{
887	now_floor = mn_now;	1125	now_floor = mn_now;
888	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
889	return 1;	1127	return 1;
890	}	1128	}
891	}	1129	}
892		1130
893	static void	1131	inline void
894	time_update (EV_P)	1132	time_update (EV_P)
895	{	1133	{
896	int i;	1134	int i;
897		1135
898	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
902	{	1140	{
903	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
904		1142
905	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 */
906	{	1144	{
907	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
908		1146
909	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
910	return; /* all is well */	1148	return; /* all is well */
911		1149
912	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
913	mn_now = get_clock ();	1151	mn_now = get_clock ();
914	now_floor = mn_now;	1152	now_floor = mn_now;
915	}	1153	}
916		1154
		1155	# if EV_PERIODICS
917	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
918	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
919	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
920	}	1160	}
921	}	1161	}
922	else	1162	else
923	#endif	1163	#endif
924	{	1164	{
925	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
926		1166
927	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))
928	{	1168	{
		1169	#if EV_PERIODICS
929	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
930		1172
931	/* 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 */
932	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
933	((WT)timers [i])->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
934	}	1176	}
935		1177
936	mn_now = rt_now;	1178	mn_now = ev_rt_now;
937	}	1179	}
938	}	1180	}
939		1181
940	void	1182	void
941	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
955	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
956	{	1198	{
957	double block;	1199	double block;
958	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
959		1201
960	do	1202	while (activecnt)
961	{	1203	{
962	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
963	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
964	{	1206	{
965	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
966	call_pending (EV_A);	1208	call_pending (EV_A);
967	}	1209	}
968		1210
		1211	/* we might have forked, so reify kernel state if necessary */
		1212	if (expect_false (postfork))
		1213	loop_fork (EV_A);
		1214
969	/* update fd-related kernel structures */	1215	/* update fd-related kernel structures */
970	fd_reify (EV_A);	1216	fd_reify (EV_A);
971		1217
972	/* calculate blocking time */	1218	/* calculate blocking time */
973		1219
974	/* 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
975	always have timers, we just calculate it always */	1221	always have timers, we just calculate it always */
976	#if EV_USE_MONOTONIC	1222	#if EV_USE_MONOTONIC
977	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
978	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
979	else	1225	else
980	#endif	1226	#endif
981	{	1227	{
982	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
983	mn_now = rt_now;	1229	mn_now = ev_rt_now;
984	}	1230	}
985		1231
986	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
987	block = 0.;	1233	block = 0.;
988	else	1234	else
…		…
993	{	1239	{
994	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
995	if (block > to) block = to;	1241	if (block > to) block = to;
996	}	1242	}
997		1243
		1244	#if EV_PERIODICS
998	if (periodiccnt)	1245	if (periodiccnt)
999	{	1246	{
1000	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1001	if (block > to) block = to;	1248	if (block > to) block = to;
1002	}	1249	}
		1250	#endif
1003		1251
1004	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1005	}	1253	}
1006		1254
1007	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1008		1256
1009	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1010	time_update (EV_A);	1258	time_update (EV_A);
1011		1259
1012	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1013	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1014	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1015		1265
1016	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1017	if (!pendingcnt)	1267	if (idlecnt && !any_pending (EV_A))
1018	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1019		1269
1020	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1021	if (checkcnt)	1271	if (expect_false (checkcnt))
1022	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1023		1273
1024	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1025	}	1278	}
1026	while (activecnt && !loop_done);
1027		1279
1028	if (loop_done != 2)	1280	if (loop_done != 2)
1029	loop_done = 0;	1281	loop_done = 0;
1030	}	1282	}
1031		1283
…		…
1091	void	1343	void
1092	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1093	{	1345	{
1094	int fd = w->fd;	1346	int fd = w->fd;
1095		1347
1096	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1097	return;	1349	return;
1098		1350
1099	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1100		1352
1101	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
1102	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1103	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1104		1356
1105	fd_change (EV_A_ fd);	1357	fd_change (EV_A_ fd);
1106	}	1358	}
1107		1359
1108	void	1360	void
1109	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1110	{	1362	{
1111	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1112	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1113	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1114		1368
1115	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1116	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1117		1371
1118	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1119	}	1373	}
1120		1374
1121	void	1375	void
1122	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1123	{	1377	{
1124	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1125	return;	1379	return;
1126		1380
1127	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1128		1382
1129	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.));
1130		1384
1131	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1132	array_needsize (timers, timermax, timercnt, );	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1133	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1134	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1135		1389
1136	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1137	}	1391	}
1138		1392
1139	void	1393	void
1140	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1141	{	1395	{
1142	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1143	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1144	return;	1398	return;
1145		1399
1146	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1147		1401
1148	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1149	{	1403	{
1150	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1151	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1406	}
1153		1407
1154	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1155		1409
1156	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1157	}	1411	}
1158		1412
1159	void	1413	void
…		…
1162	if (ev_is_active (w))	1416	if (ev_is_active (w))
1163	{	1417	{
1164	if (w->repeat)	1418	if (w->repeat)
1165	{	1419	{
1166	((WT)w)->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1167	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1168	}	1422	}
1169	else	1423	else
1170	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1171	}	1425	}
1172	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1173	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1174	}	1431	}
1175		1432
		1433	#if EV_PERIODICS
1176	void	1434	void
1177	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1178	{	1436	{
1179	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1180	return;	1438	return;
1181		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1182	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.));
1183
1184	/* 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 */
1185	if (w->interval)
1186	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1187		1448
1188	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1189	array_needsize (periodics, periodicmax, periodiccnt, );	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1190	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1191	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1192		1453
1193	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1194	}	1455	}
1195		1456
1196	void	1457	void
1197	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1198	{	1459	{
1199	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1200	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1201	return;	1462	return;
1202		1463
1203	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1204		1465
1205	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1206	{	1467	{
1207	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1208	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1209	}	1470	}
1210		1471
1211	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1212	}	1473	}
1213		1474
1214	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
1215	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1216	{	1486	{
1217	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1218	return;	1488	return;
1219		1489
1220	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1221	array_needsize (idles, idlemax, idlecnt, );	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1222	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1223	}	1493	}
1224		1494
1225	void	1495	void
1226	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1227	{	1497	{
1228	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1229	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1230	return;	1500	return;
1231		1501
1232	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1233	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1234	}	1504	}
1235		1505
1236	void	1506	void
1237	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1238	{	1508	{
1239	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1240	return;	1510	return;
1241		1511
1242	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1243	array_needsize (prepares, preparemax, preparecnt, );	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1244	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1245	}	1515	}
1246		1516
1247	void	1517	void
1248	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1249	{	1519	{
1250	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1251	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1252	return;	1522	return;
1253		1523
1254	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1255	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1256	}	1526	}
1257		1527
1258	void	1528	void
1259	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1260	{	1530	{
1261	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1262	return;	1532	return;
1263		1533
1264	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1265	array_needsize (checks, checkmax, checkcnt, );	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1266	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1267	}	1537	}
1268		1538
1269	void	1539	void
1270	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1271	{	1541	{
1272	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1273	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1274	return;	1544	return;
1275		1545
1276	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1277	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1278	}	1548	}
…		…
1283		1553
1284	void	1554	void
1285	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1286	{	1556	{
1287	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1288	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));
1289	#endif	1559	#endif
1290	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1291	return;	1561	return;
1292		1562
1293	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));
1294		1564
1295	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1296	array_needsize (signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1297	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1298		1568
1299	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1300	{	1570	{
		1571	#if _WIN32
		1572	signal (w->signum, sighandler);
		1573	#else
1301	struct sigaction sa;	1574	struct sigaction sa;
1302	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1303	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
1304	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 */
1305	sigaction (w->signum, &sa, 0);	1578	sigaction (w->signum, &sa, 0);
		1579	#endif
1306	}	1580	}
1307	}	1581	}
1308		1582
1309	void	1583	void
1310	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1311	{	1585	{
1312	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1313	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1314	return;	1588	return;
1315		1589
1316	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1317	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1318		1592
…		…
1322		1596
1323	void	1597	void
1324	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1325	{	1599	{
1326	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1327	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));
1328	#endif	1602	#endif
1329	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1330	return;	1604	return;
1331		1605
1332	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1333	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1334	}	1608	}
1335		1609
1336	void	1610	void
1337	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1338	{	1612	{
1339	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1340	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1341	return;	1615	return;
1342		1616
1343	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1344	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1345	}	1619	}
…		…
1360	void (cb)(int revents, void arg) = once->cb;	1634	void (cb)(int revents, void arg) = once->cb;
1361	void *arg = once->arg;	1635	void *arg = once->arg;
1362		1636
1363	ev_io_stop (EV_A_ &once->io);	1637	ev_io_stop (EV_A_ &once->io);
1364	ev_timer_stop (EV_A_ &once->to);	1638	ev_timer_stop (EV_A_ &once->to);
1365	free (once);	1639	ev_free (once);
1366		1640
1367	cb (revents, arg);	1641	cb (revents, arg);
1368	}	1642	}
1369		1643
1370	static void	1644	static void
…		…
1380	}	1654	}
1381		1655
1382	void	1656	void
1383	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)
1384	{	1658	{
1385	struct ev_once *once = malloc (sizeof (struct ev_once));	1659	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1386		1660
1387	if (!once)	1661	if (expect_false (!once))
		1662	{
1388	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1389	else	1664	return;
1390	{	1665	}
		1666
1391	once->cb = cb;	1667	once->cb = cb;
1392	once->arg = arg;	1668	once->arg = arg;
1393		1669
1394	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1395	if (fd >= 0)	1671	if (fd >= 0)
1396	{	1672	{
1397	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1398	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1399	}	1675	}
1400		1676
1401	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1402	if (timeout >= 0.)	1678	if (timeout >= 0.)
1403	{	1679	{
1404	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1405	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1406	}
1407	}	1682	}
1408	}	1683	}
1409		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.64 by root, Sun Nov 4 23:14:11 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 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC