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

Comparing libev/ev.c (file contents):
Revision 1.38 by root, Thu Nov 1 15:21:13 2007 UTC vs.
Revision 1.51 by root, Sat Nov 3 21:58:51 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	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
		53	/**/
		54
51	#ifndef EV_USE_MONOTONIC	55	#ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 1	56	# define EV_USE_MONOTONIC 1
53	#endif	57	#endif
		58
		59	#ifndef EV_USE_SELECT
		60	# define EV_USE_SELECT 1
		61	#endif
		62
		63	#ifndef EV_USEV_POLL
		64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
		65	#endif
		66
		67	#ifndef EV_USE_EPOLL
		68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
		73	#endif
		74
		75	#ifndef EV_USE_REALTIME
		76	# define EV_USE_REALTIME 1
		77	#endif
		78
		79	/**/
54		80
55	#ifndef CLOCK_MONOTONIC	81	#ifndef CLOCK_MONOTONIC
56	# undef EV_USE_MONOTONIC	82	# undef EV_USE_MONOTONIC
57	# define EV_USE_MONOTONIC 0	83	# define EV_USE_MONOTONIC 0
58	#endif	84	#endif
59		85
60	#ifndef EV_USE_SELECT
61	# define EV_USE_SELECT 1
62	#endif
63
64	#ifndef EV_USE_EPOLL
65	# define EV_USE_EPOLL 0
66	#endif
67
68	#ifndef CLOCK_REALTIME	86	#ifndef CLOCK_REALTIME
		87	# undef EV_USE_REALTIME
69	# define EV_USE_REALTIME 0	88	# define EV_USE_REALTIME 0
70	#endif	89	#endif
71	#ifndef EV_USE_REALTIME	90
72	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */	91	/**/
73	#endif
74		92
75	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
76	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */	94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
77	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
78	#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
79		97
80	#include "ev.h"	98	#include "ev.h"
		99
		100	#if __GNUC__ >= 3
		101	# define expect(expr,value) __builtin_expect ((expr),(value))
		102	# define inline inline
		103	#else
		104	# define expect(expr,value) (expr)
		105	# define inline static
		106	#endif
		107
		108	#define expect_false(expr) expect ((expr) != 0, 0)
		109	#define expect_true(expr) expect ((expr) != 0, 1)
		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
81		113
82	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
83	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
84	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
85		117
86	static ev_tstamp now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
87	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
88	int ev_method;	120	static int method;
89		121
90	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
91		123
92	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
93	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
94	static void (*method_poll)(ev_tstamp timeout);	126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
		127
		128	static int activecnt; /* number of active events */
		129
		130	#if EV_USE_SELECT
		131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;
		132	static int vec_max;
		133	#endif
		134
		135	#if EV_USEV_POLL
		136	static struct pollfd *polls;
		137	static int pollmax, pollcnt;
		138	static int pollidxs; / maps fds into structure indices */
		139	static int pollidxmax;
		140	#endif
		141
		142	#if EV_USE_EPOLL
		143	static int epoll_fd = -1;
		144
		145	static struct epoll_event *events;
		146	static int eventmax;
		147	#endif
		148
		149	#if EV_USE_KQUEUE
		150	static int kqueue_fd;
		151	static struct kevent *kqueue_changes;
		152	static int kqueue_changemax, kqueue_changecnt;
		153	static struct kevent *kqueue_events;
		154	static int kqueue_eventmax;
		155	#endif
95		156
96	/*****************************************************************************/	157	/*****************************************************************************/
97		158
98	ev_tstamp	159	inline ev_tstamp
99	ev_time (void)	160	ev_time (void)
100	{	161	{
101	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
102	struct timespec ts;	163	struct timespec ts;
103	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
107	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
108	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
109	#endif	170	#endif
110	}	171	}
111		172
112	static ev_tstamp	173	inline ev_tstamp
113	get_clock (void)	174	get_clock (void)
114	{	175	{
115	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
116	if (have_monotonic)	177	if (expect_true (have_monotonic))
117	{	178	{
118	struct timespec ts;	179	struct timespec ts;
119	clock_gettime (CLOCK_MONOTONIC, &ts);	180	clock_gettime (CLOCK_MONOTONIC, &ts);
120	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
121	}	182	}
122	#endif	183	#endif
123		184
124	return ev_time ();	185	return ev_time ();
125	}	186	}
126		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
		192	}
		193
127	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
128		195
129	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
130	if ((cnt) > cur) \	197	if (expect_false ((cnt) > cur)) \
131	{ \	198	{ \
132	int newcnt = cur; \	199	int newcnt = cur; \
133	do \	200	do \
134	{ \	201	{ \
135	newcnt = array_roundsize (base, newcnt << 1); \	202	newcnt = array_roundsize (base, newcnt << 1); \
…		…
143		210
144	/*****************************************************************************/	211	/*****************************************************************************/
145		212
146	typedef struct	213	typedef struct
147	{	214	{
148	struct ev_io *head;	215	struct ev_watcher_list *head;
149	unsigned char events;	216	unsigned char events;
150	unsigned char reify;	217	unsigned char reify;
151	} ANFD;	218	} ANFD;
152		219
153	static ANFD *anfds;	220	static ANFD *anfds;
…		…
170	{	237	{
171	W w;	238	W w;
172	int events;	239	int events;
173	} ANPENDING;	240	} ANPENDING;
174		241
175	static ANPENDING *pendings;	242	static ANPENDING *pendings [NUMPRI];
176	static int pendingmax, pendingcnt;	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
177		244
178	static void	245	static void
179	event (W w, int events)	246	event (EV_P_ W w, int events)
180	{	247	{
181	if (w->pending)	248	if (w->pending)
182	{	249	{
183	pendings [w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
184	return;	251	return;
185	}	252	}
186		253
187	w->pending = ++pendingcnt;	254	w->pending = ++pendingcnt [ABSPRI (w)];
188	array_needsize (pendings, pendingmax, pendingcnt, );	255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
189	pendings [pendingcnt - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
190	pendings [pendingcnt - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
191	}	258	}
192		259
193	static void	260	static void
194	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
195	{	262	{
196	int i;	263	int i;
197		264
198	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
199	event (events [i], type);	266	event (EV_A_ events [i], type);
200	}	267	}
201		268
202	static void	269	static void
203	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
204	{	271	{
205	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
206	struct ev_io *w;	273	struct ev_io *w;
207		274
208	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
209	{	276	{
210	int ev = w->events & events;	277	int ev = w->events & events;
211		278
212	if (ev)	279	if (ev)
213	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
214	}	281	}
215	}	282	}
216		283
217	/*****************************************************************************/	284	/*****************************************************************************/
218		285
219	static int *fdchanges;	286	static int *fdchanges;
220	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
221		288
222	static void	289	static void
223	fd_reify (void)	290	fd_reify (EV_P)
224	{	291	{
225	int i;	292	int i;
226		293
227	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
228	{	295	{
…		…
230	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
231	struct ev_io *w;	298	struct ev_io *w;
232		299
233	int events = 0;	300	int events = 0;
234		301
235	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
236	events \|= w->events;	303	events \|= w->events;
237		304
238	anfd->reify = 0;	305	anfd->reify = 0;
239		306
240	if (anfd->events != events)	307	if (anfd->events != events)
241	{	308	{
242	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
243	anfd->events = events;	310	anfd->events = events;
244	}	311	}
245	}	312	}
246		313
247	fdchangecnt = 0;	314	fdchangecnt = 0;
248	}	315	}
249		316
250	static void	317	static void
251	fd_change (int fd)	318	fd_change (EV_P_ int fd)
252	{	319	{
253	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
254	return;	321	return;
255		322
256	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
258	++fdchangecnt;	325	++fdchangecnt;
259	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
260	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
261	}	328	}
262		329
		330	static void
		331	fd_kill (EV_P_ int fd)
		332	{
		333	struct ev_io *w;
		334
		335	while ((w = (struct ev_io *)anfds [fd].head))
		336	{
		337	ev_io_stop (EV_A_ w);
		338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		339	}
		340	}
		341
263	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
264	static void	343	static void
265	fd_recheck (void)	344	fd_ebadf (EV_P)
266	{	345	{
267	int fd;	346	int fd;
268		347
269	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
270	if (anfds [fd].events)	349	if (anfds [fd].events)
271	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
272	while (anfds [fd].head)	351	fd_kill (EV_A_ fd);
		352	}
		353
		354	/* called on ENOMEM in select/poll to kill some fds and retry */
		355	static void
		356	fd_enomem (EV_P)
		357	{
		358	int fd = anfdmax;
		359
		360	while (fd--)
		361	if (anfds [fd].events)
273	{	362	{
274	ev_io_stop (anfds [fd].head);	363	close (fd);
275	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	364	fd_kill (EV_A_ fd);
		365	return;
276	}	366	}
277	}	367	}
278		368
279	/*****************************************************************************/	369	/*****************************************************************************/
280		370
281	static struct ev_timer **timers;	371	static struct ev_timer **timers;
…		…
327		417
328	/*****************************************************************************/	418	/*****************************************************************************/
329		419
330	typedef struct	420	typedef struct
331	{	421	{
332	struct ev_signal *head;	422	struct ev_watcher_list *head;
333	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
334	} ANSIG;	424	} ANSIG;
335		425
336	static ANSIG *signals;	426	static ANSIG *signals;
337	static int signalmax;	427	static int signalmax;
…		…
357	{	447	{
358	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
359		449
360	if (!gotsig)	450	if (!gotsig)
361	{	451	{
		452	int old_errno = errno;
362	gotsig = 1;	453	gotsig = 1;
363	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
364	}	456	}
365	}	457	}
366		458
367	static void	459	static void
368	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
369	{	461	{
370	struct ev_signal *w;	462	struct ev_watcher_list *w;
371	int signum;	463	int signum;
372		464
373	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
374	gotsig = 0;	466	gotsig = 0;
375		467
…		…
377	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
378	{	470	{
379	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
380		472
381	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
382	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
383	}	475	}
384	}	476	}
385		477
386	static void	478	static void
387	siginit (void)	479	siginit (EV_P)
388	{	480	{
		481	#ifndef WIN32
389	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
390	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
391		484
392	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
393	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
394	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
395		489
396	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
397	ev_io_start (&sigev);	491	ev_io_start (&sigev);
398	}	492	}
399		493
…		…
411	/*****************************************************************************/	505	/*****************************************************************************/
412		506
413	static struct ev_child *childs [PID_HASHSIZE];	507	static struct ev_child *childs [PID_HASHSIZE];
414	static struct ev_signal childev;	508	static struct ev_signal childev;
415		509
		510	#ifndef WIN32
		511
416	#ifndef WCONTINUED	512	#ifndef WCONTINUED
417	# define WCONTINUED 0	513	# define WCONTINUED 0
418	#endif	514	#endif
419		515
420	static void	516	static void
421	childcb (struct ev_signal *sw, int revents)	517	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
422	{	518	{
423	struct ev_child *w;	519	struct ev_child *w;
		520
		521	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		522	if (w->pid == pid \|\| !w->pid)
		523	{
		524	w->priority = sw->priority; /* need to do it now */
		525	w->rpid = pid;
		526	w->rstatus = status;
		527	event (EV_A_ (W)w, EV_CHILD);
		528	}
		529	}
		530
		531	static void
		532	childcb (EV_P_ struct ev_signal *sw, int revents)
		533	{
424	int pid, status;	534	int pid, status;
425		535
426	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
427	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	537	{
428	if (w->pid == pid \|\| w->pid == -1)	538	/* make sure we are called again until all childs have been reaped */
429	{	539	event (EV_A_ (W)sw, EV_SIGNAL);
430	w->status = status;	540
431	event ((W)w, EV_CHILD);	541	child_reap (EV_A_ sw, pid, pid, status);
432	}	542	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		543	}
433	}	544	}
		545
		546	#endif
434		547
435	/*****************************************************************************/	548	/*****************************************************************************/
436		549
		550	#if EV_USE_KQUEUE
		551	# include "ev_kqueue.c"
		552	#endif
437	#if EV_USE_EPOLL	553	#if EV_USE_EPOLL
438	# include "ev_epoll.c"	554	# include "ev_epoll.c"
439	#endif	555	#endif
		556	#if EV_USEV_POLL
		557	# include "ev_poll.c"
		558	#endif
440	#if EV_USE_SELECT	559	#if EV_USE_SELECT
441	# include "ev_select.c"	560	# include "ev_select.c"
442	#endif	561	#endif
443		562
444	int	563	int
…		…
451	ev_version_minor (void)	570	ev_version_minor (void)
452	{	571	{
453	return EV_VERSION_MINOR;	572	return EV_VERSION_MINOR;
454	}	573	}
455		574
456	int ev_init (int flags)	575	/* return true if we are running with elevated privileges and should ignore env variables */
		576	static int
		577	enable_secure (void)
457	{	578	{
		579	#ifdef WIN32
		580	return 0;
		581	#else
		582	return getuid () != geteuid ()
		583	\|\| getgid () != getegid ();
		584	#endif
		585	}
		586
		587	int
		588	ev_method (EV_P)
		589	{
		590	return method;
		591	}
		592
		593	int
		594	ev_init (EV_P_ int methods)
		595	{
458	if (!ev_method)	596	if (!method)
459	{	597	{
460	#if EV_USE_MONOTONIC	598	#if EV_USE_MONOTONIC
461	{	599	{
462	struct timespec ts;	600	struct timespec ts;
463	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
464	have_monotonic = 1;	602	have_monotonic = 1;
465	}	603	}
466	#endif	604	#endif
467		605
468	ev_now = ev_time ();	606	rt_now = ev_time ();
469	now = get_clock ();	607	mn_now = get_clock ();
		608	now_floor = mn_now;
470	diff = ev_now - now;	609	diff = rt_now - mn_now;
471		610
472	if (pipe (sigpipe))	611	if (pipe (sigpipe))
473	return 0;	612	return 0;
474		613
		614	if (methods == EVMETHOD_AUTO)
		615	if (!enable_secure () && getenv ("LIBmethodS"))
		616	methods = atoi (getenv ("LIBmethodS"));
		617	else
475	ev_method = EVMETHOD_NONE;	618	methods = EVMETHOD_ANY;
		619
		620	method = 0;
		621	#if EV_USE_KQUEUE
		622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		623	#endif
476	#if EV_USE_EPOLL	624	#if EV_USE_EPOLL
477	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		626	#endif
		627	#if EV_USEV_POLL
		628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
478	#endif	629	#endif
479	#if EV_USE_SELECT	630	#if EV_USE_SELECT
480	if (ev_method == EVMETHOD_NONE) select_init (flags);	631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
481	#endif	632	#endif
482		633
483	if (ev_method)	634	if (method)
484	{	635	{
485	ev_watcher_init (&sigev, sigcb);	636	ev_watcher_init (&sigev, sigcb);
		637	ev_set_priority (&sigev, EV_MAXPRI);
486	siginit ();	638	siginit (EV_A);
487		639
		640	#ifndef WIN32
488	ev_signal_init (&childev, childcb, SIGCHLD);	641	ev_signal_init (&childev, childcb, SIGCHLD);
		642	ev_set_priority (&childev, EV_MAXPRI);
489	ev_signal_start (&childev);	643	ev_signal_start (EV_A_ &childev);
		644	#endif
490	}	645	}
491	}	646	}
492		647
493	return ev_method;	648	return method;
494	}	649	}
495		650
496	/*****************************************************************************/	651	/*****************************************************************************/
497		652
498	void	653	void
…		…
509		664
510	void	665	void
511	ev_fork_child (void)	666	ev_fork_child (void)
512	{	667	{
513	#if EV_USE_EPOLL	668	#if EV_USE_EPOLL
514	if (ev_method == EVMETHOD_EPOLL)	669	if (method == EVMETHOD_EPOLL)
515	epoll_postfork_child ();	670	epoll_postfork_child ();
516	#endif	671	#endif
517		672
518	ev_io_stop (&sigev);	673	ev_io_stop (&sigev);
519	close (sigpipe [0]);	674	close (sigpipe [0]);
…		…
523	}	678	}
524		679
525	/*****************************************************************************/	680	/*****************************************************************************/
526		681
527	static void	682	static void
528	call_pending (void)	683	call_pending (EV_P)
529	{	684	{
		685	int pri;
		686
		687	for (pri = NUMPRI; pri--; )
530	while (pendingcnt)	688	while (pendingcnt [pri])
531	{	689	{
532	ANPENDING *p = pendings + --pendingcnt;	690	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
533		691
534	if (p->w)	692	if (p->w)
535	{	693	{
536	p->w->pending = 0;	694	p->w->pending = 0;
537	p->w->cb (p->w, p->events);	695	p->w->cb (EV_A_ p->w, p->events);
538	}	696	}
539	}	697	}
540	}	698	}
541		699
542	static void	700	static void
543	timers_reify (void)	701	timers_reify (EV_P)
544	{	702	{
545	while (timercnt && timers [0]->at <= now)	703	while (timercnt && timers [0]->at <= mn_now)
546	{	704	{
547	struct ev_timer *w = timers [0];	705	struct ev_timer *w = timers [0];
548		706
549	/* first reschedule or stop timer */	707	/* first reschedule or stop timer */
550	if (w->repeat)	708	if (w->repeat)
551	{	709	{
552	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	710	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
553	w->at = now + w->repeat;	711	w->at = mn_now + w->repeat;
554	downheap ((WT *)timers, timercnt, 0);	712	downheap ((WT *)timers, timercnt, 0);
555	}	713	}
556	else	714	else
557	ev_timer_stop (w); /* nonrepeating: stop timer */	715	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
558		716
559	event ((W)w, EV_TIMEOUT);	717	event ((W)w, EV_TIMEOUT);
560	}	718	}
561	}	719	}
562		720
563	static void	721	static void
564	periodics_reify (void)	722	periodics_reify (EV_P)
565	{	723	{
566	while (periodiccnt && periodics [0]->at <= ev_now)	724	while (periodiccnt && periodics [0]->at <= rt_now)
567	{	725	{
568	struct ev_periodic *w = periodics [0];	726	struct ev_periodic *w = periodics [0];
569		727
570	/* first reschedule or stop timer */	728	/* first reschedule or stop timer */
571	if (w->interval)	729	if (w->interval)
572	{	730	{
573	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	731	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
574	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	732	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
575	downheap ((WT *)periodics, periodiccnt, 0);	733	downheap ((WT *)periodics, periodiccnt, 0);
576	}	734	}
577	else	735	else
578	ev_periodic_stop (w); /* nonrepeating: stop timer */	736	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
579		737
580	event ((W)w, EV_PERIODIC);	738	event (EV_A_ (W)w, EV_PERIODIC);
581	}	739	}
582	}	740	}
583		741
584	static void	742	static void
585	periodics_reschedule (ev_tstamp diff)	743	periodics_reschedule (EV_P_ ev_tstamp diff)
586	{	744	{
587	int i;	745	int i;
588		746
589	/* adjust periodics after time jump */	747	/* adjust periodics after time jump */
590	for (i = 0; i < periodiccnt; ++i)	748	for (i = 0; i < periodiccnt; ++i)
591	{	749	{
592	struct ev_periodic *w = periodics [i];	750	struct ev_periodic *w = periodics [i];
593		751
594	if (w->interval)	752	if (w->interval)
595	{	753	{
596	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	754	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
597		755
598	if (fabs (diff) >= 1e-4)	756	if (fabs (diff) >= 1e-4)
599	{	757	{
600	ev_periodic_stop (w);	758	ev_periodic_stop (EV_A_ w);
601	ev_periodic_start (w);	759	ev_periodic_start (EV_A_ w);
602		760
603	i = 0; /* restart loop, inefficient, but time jumps should be rare */	761	i = 0; /* restart loop, inefficient, but time jumps should be rare */
604	}	762	}
605	}	763	}
606	}	764	}
607	}	765	}
608		766
		767	inline int
		768	time_update_monotonic (EV_P)
		769	{
		770	mn_now = get_clock ();
		771
		772	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
		773	{
		774	rt_now = mn_now + diff;
		775	return 0;
		776	}
		777	else
		778	{
		779	now_floor = mn_now;
		780	rt_now = ev_time ();
		781	return 1;
		782	}
		783	}
		784
609	static void	785	static void
610	time_update (void)	786	time_update (EV_P)
611	{	787	{
612	int i;	788	int i;
613		789
614	ev_now = ev_time ();	790	#if EV_USE_MONOTONIC
615
616	if (have_monotonic)	791	if (expect_true (have_monotonic))
617	{	792	{
618	ev_tstamp odiff = diff;	793	if (time_update_monotonic (EV_A))
619
620	for (i = 4; --i; ) /* loop a few times, before making important decisions */
621	{	794	{
622	now = get_clock ();	795	ev_tstamp odiff = diff;
		796
		797	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		798	{
623	diff = ev_now - now;	799	diff = rt_now - mn_now;
624		800
625	if (fabs (odiff - diff) < MIN_TIMEJUMP)	801	if (fabs (odiff - diff) < MIN_TIMEJUMP)
626	return; /* all is well */	802	return; /* all is well */
627		803
628	ev_now = ev_time ();	804	rt_now = ev_time ();
		805	mn_now = get_clock ();
		806	now_floor = mn_now;
		807	}
		808
		809	periodics_reschedule (EV_A_ diff - odiff);
		810	/* no timer adjustment, as the monotonic clock doesn't jump */
629	}	811	}
630
631	periodics_reschedule (diff - odiff);
632	/* no timer adjustment, as the monotonic clock doesn't jump */
633	}	812	}
634	else	813	else
		814	#endif
635	{	815	{
636	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	816	rt_now = ev_time ();
		817
		818	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
637	{	819	{
638	periodics_reschedule (ev_now - now);	820	periodics_reschedule (EV_A_ rt_now - mn_now);
639		821
640	/* adjust timers. this is easy, as the offset is the same for all */	822	/* adjust timers. this is easy, as the offset is the same for all */
641	for (i = 0; i < timercnt; ++i)	823	for (i = 0; i < timercnt; ++i)
642	timers [i]->at += diff;	824	timers [i]->at += diff;
643	}	825	}
644		826
645	now = ev_now;	827	mn_now = rt_now;
646	}	828	}
647	}	829	}
648		830
649	int ev_loop_done;	831	void
		832	ev_ref (EV_P)
		833	{
		834	++activecnt;
		835	}
650		836
		837	void
		838	ev_unref (EV_P)
		839	{
		840	--activecnt;
		841	}
		842
		843	static int loop_done;
		844
		845	void
651	void ev_loop (int flags)	846	ev_loop (EV_P_ int flags)
652	{	847	{
653	double block;	848	double block;
654	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	849	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
655		850
656	do	851	do
657	{	852	{
658	/* queue check watchers (and execute them) */	853	/* queue check watchers (and execute them) */
659	if (preparecnt)	854	if (expect_false (preparecnt))
660	{	855	{
661	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	856	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
662	call_pending ();	857	call_pending (EV_A);
663	}	858	}
664		859
665	/* update fd-related kernel structures */	860	/* update fd-related kernel structures */
666	fd_reify ();	861	fd_reify (EV_A);
667		862
668	/* calculate blocking time */	863	/* calculate blocking time */
669		864
670	/* we only need this for !monotonic clockor timers, but as we basically	865	/* we only need this for !monotonic clockor timers, but as we basically
671	always have timers, we just calculate it always */	866	always have timers, we just calculate it always */
		867	#if EV_USE_MONOTONIC
		868	if (expect_true (have_monotonic))
		869	time_update_monotonic (EV_A);
		870	else
		871	#endif
		872	{
672	ev_now = ev_time ();	873	rt_now = ev_time ();
		874	mn_now = rt_now;
		875	}
673		876
674	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	877	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
675	block = 0.;	878	block = 0.;
676	else	879	else
677	{	880	{
678	block = MAX_BLOCKTIME;	881	block = MAX_BLOCKTIME;
679		882
680	if (timercnt)	883	if (timercnt)
681	{	884	{
682	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	885	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
683	if (block > to) block = to;	886	if (block > to) block = to;
684	}	887	}
685		888
686	if (periodiccnt)	889	if (periodiccnt)
687	{	890	{
688	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	891	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
689	if (block > to) block = to;	892	if (block > to) block = to;
690	}	893	}
691		894
692	if (block < 0.) block = 0.;	895	if (block < 0.) block = 0.;
693	}	896	}
694		897
695	method_poll (block);	898	method_poll (EV_A_ block);
696		899
697	/* update ev_now, do magic */	900	/* update rt_now, do magic */
698	time_update ();	901	time_update (EV_A);
699		902
700	/* queue pending timers and reschedule them */	903	/* queue pending timers and reschedule them */
701	timers_reify (); /* relative timers called last */	904	timers_reify (EV_A); /* relative timers called last */
702	periodics_reify (); /* absolute timers called first */	905	periodics_reify (EV_A); /* absolute timers called first */
703		906
704	/* queue idle watchers unless io or timers are pending */	907	/* queue idle watchers unless io or timers are pending */
705	if (!pendingcnt)	908	if (!pendingcnt)
706	queue_events ((W *)idles, idlecnt, EV_IDLE);	909	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
707		910
708	/* queue check watchers, to be executed first */	911	/* queue check watchers, to be executed first */
709	if (checkcnt)	912	if (checkcnt)
710	queue_events ((W *)checks, checkcnt, EV_CHECK);	913	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
711		914
712	call_pending ();	915	call_pending (EV_A);
		916	printf ("activecnt %d\n", activecnt);//D
713	}	917	}
714	while (!ev_loop_done);	918	while (activecnt && !loop_done);
715		919
716	if (ev_loop_done != 2)	920	if (loop_done != 2)
717	ev_loop_done = 0;	921	loop_done = 0;
		922	}
		923
		924	void
		925	ev_unloop (EV_P_ int how)
		926	{
		927	loop_done = how;
718	}	928	}
719		929
720	/*****************************************************************************/	930	/*****************************************************************************/
721		931
722	static void	932	inline void
723	wlist_add (WL *head, WL elem)	933	wlist_add (WL *head, WL elem)
724	{	934	{
725	elem->next = *head;	935	elem->next = *head;
726	*head = elem;	936	*head = elem;
727	}	937	}
728		938
729	static void	939	inline void
730	wlist_del (WL *head, WL elem)	940	wlist_del (WL *head, WL elem)
731	{	941	{
732	while (*head)	942	while (*head)
733	{	943	{
734	if (*head == elem)	944	if (*head == elem)
…		…
739		949
740	head = &(*head)->next;	950	head = &(*head)->next;
741	}	951	}
742	}	952	}
743		953
744	static void	954	inline void
745	ev_clear_pending (W w)	955	ev_clear_pending (EV_P_ W w)
746	{	956	{
747	if (w->pending)	957	if (w->pending)
748	{	958	{
749	pendings [w->pending - 1].w = 0;	959	pendings [ABSPRI (w)][w->pending - 1].w = 0;
750	w->pending = 0;	960	w->pending = 0;
751	}	961	}
752	}	962	}
753		963
754	static void	964	inline void
755	ev_start (W w, int active)	965	ev_start (EV_P_ W w, int active)
756	{	966	{
		967	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		968	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		969
757	w->active = active;	970	w->active = active;
		971	ev_ref (EV_A);
758	}	972	}
759		973
760	static void	974	inline void
761	ev_stop (W w)	975	ev_stop (EV_P_ W w)
762	{	976	{
		977	ev_unref (EV_A);
763	w->active = 0;	978	w->active = 0;
764	}	979	}
765		980
766	/*****************************************************************************/	981	/*****************************************************************************/
767		982
768	void	983	void
769	ev_io_start (struct ev_io *w)	984	ev_io_start (EV_P_ struct ev_io *w)
770	{	985	{
771	int fd = w->fd;	986	int fd = w->fd;
772		987
773	if (ev_is_active (w))	988	if (ev_is_active (w))
774	return;	989	return;
775		990
776	assert (("ev_io_start called with negative fd", fd >= 0));	991	assert (("ev_io_start called with negative fd", fd >= 0));
777		992
778	ev_start ((W)w, 1);	993	ev_start (EV_A_ (W)w, 1);
779	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	994	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
780	wlist_add ((WL *)&anfds[fd].head, (WL)w);	995	wlist_add ((WL *)&anfds[fd].head, (WL)w);
781		996
782	fd_change (fd);	997	fd_change (EV_A_ fd);
783	}	998	}
784		999
785	void	1000	void
786	ev_io_stop (struct ev_io *w)	1001	ev_io_stop (EV_P_ struct ev_io *w)
787	{	1002	{
788	ev_clear_pending ((W)w);	1003	ev_clear_pending (EV_A_ (W)w);
789	if (!ev_is_active (w))	1004	if (!ev_is_active (w))
790	return;	1005	return;
791		1006
792	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1007	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
793	ev_stop ((W)w);	1008	ev_stop (EV_A_ (W)w);
794		1009
795	fd_change (w->fd);	1010	fd_change (EV_A_ w->fd);
796	}	1011	}
797		1012
798	void	1013	void
799	ev_timer_start (struct ev_timer *w)	1014	ev_timer_start (EV_P_ struct ev_timer *w)
800	{	1015	{
801	if (ev_is_active (w))	1016	if (ev_is_active (w))
802	return;	1017	return;
803		1018
804	w->at += now;	1019	w->at += mn_now;
805		1020
806	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1021	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
807		1022
808	ev_start ((W)w, ++timercnt);	1023	ev_start (EV_A_ (W)w, ++timercnt);
809	array_needsize (timers, timermax, timercnt, );	1024	array_needsize (timers, timermax, timercnt, );
810	timers [timercnt - 1] = w;	1025	timers [timercnt - 1] = w;
811	upheap ((WT *)timers, timercnt - 1);	1026	upheap ((WT *)timers, timercnt - 1);
812	}	1027	}
813		1028
814	void	1029	void
815	ev_timer_stop (struct ev_timer *w)	1030	ev_timer_stop (EV_P_ struct ev_timer *w)
816	{	1031	{
817	ev_clear_pending ((W)w);	1032	ev_clear_pending (EV_A_ (W)w);
818	if (!ev_is_active (w))	1033	if (!ev_is_active (w))
819	return;	1034	return;
820		1035
821	if (w->active < timercnt--)	1036	if (w->active < timercnt--)
822	{	1037	{
…		…
824	downheap ((WT *)timers, timercnt, w->active - 1);	1039	downheap ((WT *)timers, timercnt, w->active - 1);
825	}	1040	}
826		1041
827	w->at = w->repeat;	1042	w->at = w->repeat;
828		1043
829	ev_stop ((W)w);	1044	ev_stop (EV_A_ (W)w);
830	}	1045	}
831		1046
832	void	1047	void
833	ev_timer_again (struct ev_timer *w)	1048	ev_timer_again (EV_P_ struct ev_timer *w)
834	{	1049	{
835	if (ev_is_active (w))	1050	if (ev_is_active (w))
836	{	1051	{
837	if (w->repeat)	1052	if (w->repeat)
838	{	1053	{
839	w->at = now + w->repeat;	1054	w->at = mn_now + w->repeat;
840	downheap ((WT *)timers, timercnt, w->active - 1);	1055	downheap ((WT *)timers, timercnt, w->active - 1);
841	}	1056	}
842	else	1057	else
843	ev_timer_stop (w);	1058	ev_timer_stop (EV_A_ w);
844	}	1059	}
845	else if (w->repeat)	1060	else if (w->repeat)
846	ev_timer_start (w);	1061	ev_timer_start (EV_A_ w);
847	}	1062	}
848		1063
849	void	1064	void
850	ev_periodic_start (struct ev_periodic *w)	1065	ev_periodic_start (EV_P_ struct ev_periodic *w)
851	{	1066	{
852	if (ev_is_active (w))	1067	if (ev_is_active (w))
853	return;	1068	return;
854		1069
855	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1070	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
856		1071
857	/* this formula differs from the one in periodic_reify because we do not always round up */	1072	/* this formula differs from the one in periodic_reify because we do not always round up */
858	if (w->interval)	1073	if (w->interval)
859	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1074	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
860		1075
861	ev_start ((W)w, ++periodiccnt);	1076	ev_start (EV_A_ (W)w, ++periodiccnt);
862	array_needsize (periodics, periodicmax, periodiccnt, );	1077	array_needsize (periodics, periodicmax, periodiccnt, );
863	periodics [periodiccnt - 1] = w;	1078	periodics [periodiccnt - 1] = w;
864	upheap ((WT *)periodics, periodiccnt - 1);	1079	upheap ((WT *)periodics, periodiccnt - 1);
865	}	1080	}
866		1081
867	void	1082	void
868	ev_periodic_stop (struct ev_periodic *w)	1083	ev_periodic_stop (EV_P_ struct ev_periodic *w)
869	{	1084	{
870	ev_clear_pending ((W)w);	1085	ev_clear_pending (EV_A_ (W)w);
871	if (!ev_is_active (w))	1086	if (!ev_is_active (w))
872	return;	1087	return;
873		1088
874	if (w->active < periodiccnt--)	1089	if (w->active < periodiccnt--)
875	{	1090	{
876	periodics [w->active - 1] = periodics [periodiccnt];	1091	periodics [w->active - 1] = periodics [periodiccnt];
877	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1092	downheap ((WT *)periodics, periodiccnt, w->active - 1);
878	}	1093	}
879		1094
880	ev_stop ((W)w);	1095	ev_stop (EV_A_ (W)w);
881	}	1096	}
882		1097
		1098	#ifndef SA_RESTART
		1099	# define SA_RESTART 0
		1100	#endif
		1101
883	void	1102	void
884	ev_signal_start (struct ev_signal *w)	1103	ev_signal_start (EV_P_ struct ev_signal *w)
885	{	1104	{
886	if (ev_is_active (w))	1105	if (ev_is_active (w))
887	return;	1106	return;
888		1107
889	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1108	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
890		1109
891	ev_start ((W)w, 1);	1110	ev_start (EV_A_ (W)w, 1);
892	array_needsize (signals, signalmax, w->signum, signals_init);	1111	array_needsize (signals, signalmax, w->signum, signals_init);
893	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1112	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
894		1113
895	if (!w->next)	1114	if (!w->next)
896	{	1115	{
897	struct sigaction sa;	1116	struct sigaction sa;
898	sa.sa_handler = sighandler;	1117	sa.sa_handler = sighandler;
899	sigfillset (&sa.sa_mask);	1118	sigfillset (&sa.sa_mask);
900	sa.sa_flags = 0;	1119	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
901	sigaction (w->signum, &sa, 0);	1120	sigaction (w->signum, &sa, 0);
902	}	1121	}
903	}	1122	}
904		1123
905	void	1124	void
906	ev_signal_stop (struct ev_signal *w)	1125	ev_signal_stop (EV_P_ struct ev_signal *w)
907	{	1126	{
908	ev_clear_pending ((W)w);	1127	ev_clear_pending (EV_A_ (W)w);
909	if (!ev_is_active (w))	1128	if (!ev_is_active (w))
910	return;	1129	return;
911		1130
912	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1131	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
913	ev_stop ((W)w);	1132	ev_stop (EV_A_ (W)w);
914		1133
915	if (!signals [w->signum - 1].head)	1134	if (!signals [w->signum - 1].head)
916	signal (w->signum, SIG_DFL);	1135	signal (w->signum, SIG_DFL);
917	}	1136	}
918		1137
919	void	1138	void
920	ev_idle_start (struct ev_idle *w)	1139	ev_idle_start (EV_P_ struct ev_idle *w)
921	{	1140	{
922	if (ev_is_active (w))	1141	if (ev_is_active (w))
923	return;	1142	return;
924		1143
925	ev_start ((W)w, ++idlecnt);	1144	ev_start (EV_A_ (W)w, ++idlecnt);
926	array_needsize (idles, idlemax, idlecnt, );	1145	array_needsize (idles, idlemax, idlecnt, );
927	idles [idlecnt - 1] = w;	1146	idles [idlecnt - 1] = w;
928	}	1147	}
929		1148
930	void	1149	void
931	ev_idle_stop (struct ev_idle *w)	1150	ev_idle_stop (EV_P_ struct ev_idle *w)
932	{	1151	{
933	ev_clear_pending ((W)w);	1152	ev_clear_pending (EV_A_ (W)w);
934	if (ev_is_active (w))	1153	if (ev_is_active (w))
935	return;	1154	return;
936		1155
937	idles [w->active - 1] = idles [--idlecnt];	1156	idles [w->active - 1] = idles [--idlecnt];
938	ev_stop ((W)w);	1157	ev_stop (EV_A_ (W)w);
939	}	1158	}
940		1159
941	void	1160	void
942	ev_prepare_start (struct ev_prepare *w)	1161	ev_prepare_start (EV_P_ struct ev_prepare *w)
943	{	1162	{
944	if (ev_is_active (w))	1163	if (ev_is_active (w))
945	return;	1164	return;
946		1165
947	ev_start ((W)w, ++preparecnt);	1166	ev_start (EV_A_ (W)w, ++preparecnt);
948	array_needsize (prepares, preparemax, preparecnt, );	1167	array_needsize (prepares, preparemax, preparecnt, );
949	prepares [preparecnt - 1] = w;	1168	prepares [preparecnt - 1] = w;
950	}	1169	}
951		1170
952	void	1171	void
953	ev_prepare_stop (struct ev_prepare *w)	1172	ev_prepare_stop (EV_P_ struct ev_prepare *w)
954	{	1173	{
955	ev_clear_pending ((W)w);	1174	ev_clear_pending (EV_A_ (W)w);
956	if (ev_is_active (w))	1175	if (ev_is_active (w))
957	return;	1176	return;
958		1177
959	prepares [w->active - 1] = prepares [--preparecnt];	1178	prepares [w->active - 1] = prepares [--preparecnt];
960	ev_stop ((W)w);	1179	ev_stop (EV_A_ (W)w);
961	}	1180	}
962		1181
963	void	1182	void
964	ev_check_start (struct ev_check *w)	1183	ev_check_start (EV_P_ struct ev_check *w)
965	{	1184	{
966	if (ev_is_active (w))	1185	if (ev_is_active (w))
967	return;	1186	return;
968		1187
969	ev_start ((W)w, ++checkcnt);	1188	ev_start (EV_A_ (W)w, ++checkcnt);
970	array_needsize (checks, checkmax, checkcnt, );	1189	array_needsize (checks, checkmax, checkcnt, );
971	checks [checkcnt - 1] = w;	1190	checks [checkcnt - 1] = w;
972	}	1191	}
973		1192
974	void	1193	void
975	ev_check_stop (struct ev_check *w)	1194	ev_check_stop (EV_P_ struct ev_check *w)
976	{	1195	{
977	ev_clear_pending ((W)w);	1196	ev_clear_pending (EV_A_ (W)w);
978	if (ev_is_active (w))	1197	if (ev_is_active (w))
979	return;	1198	return;
980		1199
981	checks [w->active - 1] = checks [--checkcnt];	1200	checks [w->active - 1] = checks [--checkcnt];
982	ev_stop ((W)w);	1201	ev_stop (EV_A_ (W)w);
983	}	1202	}
984		1203
985	void	1204	void
986	ev_child_start (struct ev_child *w)	1205	ev_child_start (EV_P_ struct ev_child *w)
987	{	1206	{
988	if (ev_is_active (w))	1207	if (ev_is_active (w))
989	return;	1208	return;
990		1209
991	ev_start ((W)w, 1);	1210	ev_start (EV_A_ (W)w, 1);
992	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
993	}	1212	}
994		1213
995	void	1214	void
996	ev_child_stop (struct ev_child *w)	1215	ev_child_stop (EV_P_ struct ev_child *w)
997	{	1216	{
998	ev_clear_pending ((W)w);	1217	ev_clear_pending (EV_A_ (W)w);
999	if (ev_is_active (w))	1218	if (ev_is_active (w))
1000	return;	1219	return;
1001		1220
1002	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1221	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1003	ev_stop ((W)w);	1222	ev_stop (EV_A_ (W)w);
1004	}	1223	}
1005		1224
1006	/*****************************************************************************/	1225	/*****************************************************************************/
1007		1226
1008	struct ev_once	1227	struct ev_once
…		…
1012	void (cb)(int revents, void arg);	1231	void (cb)(int revents, void arg);
1013	void *arg;	1232	void *arg;
1014	};	1233	};
1015		1234
1016	static void	1235	static void
1017	once_cb (struct ev_once *once, int revents)	1236	once_cb (EV_P_ struct ev_once *once, int revents)
1018	{	1237	{
1019	void (cb)(int revents, void arg) = once->cb;	1238	void (cb)(int revents, void arg) = once->cb;
1020	void *arg = once->arg;	1239	void *arg = once->arg;
1021		1240
1022	ev_io_stop (&once->io);	1241	ev_io_stop (EV_A_ &once->io);
1023	ev_timer_stop (&once->to);	1242	ev_timer_stop (EV_A_ &once->to);
1024	free (once);	1243	free (once);
1025		1244
1026	cb (revents, arg);	1245	cb (revents, arg);
1027	}	1246	}
1028		1247
1029	static void	1248	static void
1030	once_cb_io (struct ev_io *w, int revents)	1249	once_cb_io (EV_P_ struct ev_io *w, int revents)
1031	{	1250	{
1032	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1251	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1033	}	1252	}
1034		1253
1035	static void	1254	static void
1036	once_cb_to (struct ev_timer *w, int revents)	1255	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1037	{	1256	{
1038	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1257	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1039	}	1258	}
1040		1259
1041	void	1260	void
1042	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1261	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1043	{	1262	{
1044	struct ev_once *once = malloc (sizeof (struct ev_once));	1263	struct ev_once *once = malloc (sizeof (struct ev_once));
1045		1264
1046	if (!once)	1265	if (!once)
1047	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1266	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1052		1271
1053	ev_watcher_init (&once->io, once_cb_io);	1272	ev_watcher_init (&once->io, once_cb_io);
1054	if (fd >= 0)	1273	if (fd >= 0)
1055	{	1274	{
1056	ev_io_set (&once->io, fd, events);	1275	ev_io_set (&once->io, fd, events);
1057	ev_io_start (&once->io);	1276	ev_io_start (EV_A_ &once->io);
1058	}	1277	}
1059		1278
1060	ev_watcher_init (&once->to, once_cb_to);	1279	ev_watcher_init (&once->to, once_cb_to);
1061	if (timeout >= 0.)	1280	if (timeout >= 0.)
1062	{	1281	{
1063	ev_timer_set (&once->to, timeout, 0.);	1282	ev_timer_set (&once->to, timeout, 0.);
1064	ev_timer_start (&once->to);	1283	ev_timer_start (EV_A_ &once->to);
1065	}	1284	}
1066	}	1285	}
1067	}	1286	}
1068		1287
1069	/*****************************************************************************/	1288	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.38 by root, Thu Nov 1 15:21:13 2007 UTC vs. Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.38 by root, Thu Nov 1 15:21:13 2007 UTC vs.
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC