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

Comparing libev/ev.c (file contents):
Revision 1.36 by root, Thu Nov 1 13:11:11 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	# ifdef CLOCK_MONOTONIC
53	# define EV_USE_MONOTONIC 1	56	# define EV_USE_MONOTONIC 1
54	# endif
55	#endif	57	#endif
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		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
61	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
62	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
63	#endif	69	#endif
64		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	/**/
		80
		81	#ifndef CLOCK_MONOTONIC
		82	# undef EV_USE_MONOTONIC
		83	# define EV_USE_MONOTONIC 0
		84	#endif
		85
65	#ifndef CLOCK_REALTIME	86	#ifndef CLOCK_REALTIME
		87	# undef EV_USE_REALTIME
66	# define EV_USE_REALTIME 0	88	# define EV_USE_REALTIME 0
67	#endif	89	#endif
68	#ifndef EV_USE_REALTIME	90
69	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */	91	/**/
70	#endif
71		92
72	#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) */
73	#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) */
74	#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 */
75	#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 */
76		97
77	#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)
78		113
79	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
80	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
81	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
82		117
83	static ev_tstamp now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
84	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
85	int ev_method;	120	static int method;
86		121
87	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
88		123
89	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
90	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
91	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
92		156
93	/*****************************************************************************/	157	/*****************************************************************************/
94		158
95	ev_tstamp	159	inline ev_tstamp
96	ev_time (void)	160	ev_time (void)
97	{	161	{
98	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
99	struct timespec ts;	163	struct timespec ts;
100	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
104	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
105	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
106	#endif	170	#endif
107	}	171	}
108		172
109	static ev_tstamp	173	inline ev_tstamp
110	get_clock (void)	174	get_clock (void)
111	{	175	{
112	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
113	if (have_monotonic)	177	if (expect_true (have_monotonic))
114	{	178	{
115	struct timespec ts;	179	struct timespec ts;
116	clock_gettime (CLOCK_MONOTONIC, &ts);	180	clock_gettime (CLOCK_MONOTONIC, &ts);
117	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
118	}	182	}
119	#endif	183	#endif
120		184
121	return ev_time ();	185	return ev_time ();
122	}	186	}
123		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
		192	}
		193
124	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
125		195
126	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
127	if ((cnt) > cur) \	197	if (expect_false ((cnt) > cur)) \
128	{ \	198	{ \
129	int newcnt = cur; \	199	int newcnt = cur; \
130	do \	200	do \
131	{ \	201	{ \
132	newcnt = array_roundsize (base, newcnt << 1); \	202	newcnt = array_roundsize (base, newcnt << 1); \
…		…
140		210
141	/*****************************************************************************/	211	/*****************************************************************************/
142		212
143	typedef struct	213	typedef struct
144	{	214	{
145	struct ev_io *head;	215	struct ev_watcher_list *head;
146	unsigned char events;	216	unsigned char events;
147	unsigned char reify;	217	unsigned char reify;
148	} ANFD;	218	} ANFD;
149		219
150	static ANFD *anfds;	220	static ANFD *anfds;
…		…
167	{	237	{
168	W w;	238	W w;
169	int events;	239	int events;
170	} ANPENDING;	240	} ANPENDING;
171		241
172	static ANPENDING *pendings;	242	static ANPENDING *pendings [NUMPRI];
173	static int pendingmax, pendingcnt;	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
174		244
175	static void	245	static void
176	event (W w, int events)	246	event (EV_P_ W w, int events)
177	{	247	{
178	if (w->pending)	248	if (w->pending)
179	{	249	{
180	pendings [w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
181	return;	251	return;
182	}	252	}
183		253
184	w->pending = ++pendingcnt;	254	w->pending = ++pendingcnt [ABSPRI (w)];
185	array_needsize (pendings, pendingmax, pendingcnt, );	255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
186	pendings [pendingcnt - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
187	pendings [pendingcnt - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
188	}	258	}
189		259
190	static void	260	static void
191	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
192	{	262	{
193	int i;	263	int i;
194		264
195	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
196	event (events [i], type);	266	event (EV_A_ events [i], type);
197	}	267	}
198		268
199	static void	269	static void
200	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
201	{	271	{
202	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
203	struct ev_io *w;	273	struct ev_io *w;
204		274
205	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
206	{	276	{
207	int ev = w->events & events;	277	int ev = w->events & events;
208		278
209	if (ev)	279	if (ev)
210	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
211	}	281	}
212	}	282	}
213		283
214	/*****************************************************************************/	284	/*****************************************************************************/
215		285
216	static int *fdchanges;	286	static int *fdchanges;
217	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
218		288
219	static void	289	static void
220	fd_reify (void)	290	fd_reify (EV_P)
221	{	291	{
222	int i;	292	int i;
223		293
224	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
225	{	295	{
…		…
227	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
228	struct ev_io *w;	298	struct ev_io *w;
229		299
230	int events = 0;	300	int events = 0;
231		301
232	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
233	events \|= w->events;	303	events \|= w->events;
234		304
235	anfd->reify = 0;	305	anfd->reify = 0;
236		306
237	if (anfd->events != events)	307	if (anfd->events != events)
238	{	308	{
239	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
240	anfd->events = events;	310	anfd->events = events;
241	}	311	}
242	}	312	}
243		313
244	fdchangecnt = 0;	314	fdchangecnt = 0;
245	}	315	}
246		316
247	static void	317	static void
248	fd_change (int fd)	318	fd_change (EV_P_ int fd)
249	{	319	{
250	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
251	return;	321	return;
252		322
253	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
255	++fdchangecnt;	325	++fdchangecnt;
256	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
257	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
258	}	328	}
259		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
260	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
261	static void	343	static void
262	fd_recheck (void)	344	fd_ebadf (EV_P)
263	{	345	{
264	int fd;	346	int fd;
265		347
266	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
267	if (anfds [fd].events)	349	if (anfds [fd].events)
268	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
269	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)
270	{	362	{
271	ev_io_stop (anfds [fd].head);	363	close (fd);
272	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	364	fd_kill (EV_A_ fd);
		365	return;
273	}	366	}
274	}	367	}
275		368
276	/*****************************************************************************/	369	/*****************************************************************************/
277		370
278	static struct ev_timer **timers;	371	static struct ev_timer **timers;
…		…
324		417
325	/*****************************************************************************/	418	/*****************************************************************************/
326		419
327	typedef struct	420	typedef struct
328	{	421	{
329	struct ev_signal *head;	422	struct ev_watcher_list *head;
330	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
331	} ANSIG;	424	} ANSIG;
332		425
333	static ANSIG *signals;	426	static ANSIG *signals;
334	static int signalmax;	427	static int signalmax;
…		…
354	{	447	{
355	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
356		449
357	if (!gotsig)	450	if (!gotsig)
358	{	451	{
		452	int old_errno = errno;
359	gotsig = 1;	453	gotsig = 1;
360	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
361	}	456	}
362	}	457	}
363		458
364	static void	459	static void
365	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
366	{	461	{
367	struct ev_signal *w;	462	struct ev_watcher_list *w;
368	int sig;	463	int signum;
369		464
370	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
371	gotsig = 0;	466	gotsig = 0;
372		467
373	for (sig = signalmax; sig--; )	468	for (signum = signalmax; signum--; )
374	if (signals [sig].gotsig)	469	if (signals [signum].gotsig)
375	{	470	{
376	signals [sig].gotsig = 0;	471	signals [signum].gotsig = 0;
377		472
378	for (w = signals [sig].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
379	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
380	}	475	}
381	}	476	}
382		477
383	static void	478	static void
384	siginit (void)	479	siginit (EV_P)
385	{	480	{
		481	#ifndef WIN32
386	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
387	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
388		484
389	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
390	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
391	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
392		489
393	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
394	ev_io_start (&sigev);	491	ev_io_start (&sigev);
395	}	492	}
396		493
…		…
408	/*****************************************************************************/	505	/*****************************************************************************/
409		506
410	static struct ev_child *childs [PID_HASHSIZE];	507	static struct ev_child *childs [PID_HASHSIZE];
411	static struct ev_signal childev;	508	static struct ev_signal childev;
412		509
		510	#ifndef WIN32
		511
413	#ifndef WCONTINUED	512	#ifndef WCONTINUED
414	# define WCONTINUED 0	513	# define WCONTINUED 0
415	#endif	514	#endif
416		515
417	static void	516	static void
418	childcb (struct ev_signal *sw, int revents)	517	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
419	{	518	{
420	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	{
421	int pid, status;	534	int pid, status;
422		535
423	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
424	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	537	{
425	if (w->pid == pid \|\| w->pid == -1)	538	/* make sure we are called again until all childs have been reaped */
426	{	539	event (EV_A_ (W)sw, EV_SIGNAL);
427	w->status = status;	540
428	event ((W)w, EV_CHILD);	541	child_reap (EV_A_ sw, pid, pid, status);
429	}	542	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		543	}
430	}	544	}
		545
		546	#endif
431		547
432	/*****************************************************************************/	548	/*****************************************************************************/
433		549
		550	#if EV_USE_KQUEUE
		551	# include "ev_kqueue.c"
		552	#endif
434	#if EV_USE_EPOLL	553	#if EV_USE_EPOLL
435	# include "ev_epoll.c"	554	# include "ev_epoll.c"
436	#endif	555	#endif
		556	#if EV_USEV_POLL
		557	# include "ev_poll.c"
		558	#endif
437	#if EV_USE_SELECT	559	#if EV_USE_SELECT
438	# include "ev_select.c"	560	# include "ev_select.c"
439	#endif	561	#endif
440		562
441	int	563	int
…		…
448	ev_version_minor (void)	570	ev_version_minor (void)
449	{	571	{
450	return EV_VERSION_MINOR;	572	return EV_VERSION_MINOR;
451	}	573	}
452		574
453	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)
454	{	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	{
455	if (!ev_method)	596	if (!method)
456	{	597	{
457	#if EV_USE_MONOTONIC	598	#if EV_USE_MONOTONIC
458	{	599	{
459	struct timespec ts;	600	struct timespec ts;
460	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
461	have_monotonic = 1;	602	have_monotonic = 1;
462	}	603	}
463	#endif	604	#endif
464		605
465	ev_now = ev_time ();	606	rt_now = ev_time ();
466	now = get_clock ();	607	mn_now = get_clock ();
		608	now_floor = mn_now;
467	diff = ev_now - now;	609	diff = rt_now - mn_now;
468		610
469	if (pipe (sigpipe))	611	if (pipe (sigpipe))
470	return 0;	612	return 0;
471		613
		614	if (methods == EVMETHOD_AUTO)
		615	if (!enable_secure () && getenv ("LIBmethodS"))
		616	methods = atoi (getenv ("LIBmethodS"));
		617	else
472	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
473	#if EV_USE_EPOLL	624	#if EV_USE_EPOLL
474	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);
475	#endif	629	#endif
476	#if EV_USE_SELECT	630	#if EV_USE_SELECT
477	if (ev_method == EVMETHOD_NONE) select_init (flags);	631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
478	#endif	632	#endif
479		633
480	if (ev_method)	634	if (method)
481	{	635	{
482	ev_watcher_init (&sigev, sigcb);	636	ev_watcher_init (&sigev, sigcb);
		637	ev_set_priority (&sigev, EV_MAXPRI);
483	siginit ();	638	siginit (EV_A);
484		639
		640	#ifndef WIN32
485	ev_signal_init (&childev, childcb, SIGCHLD);	641	ev_signal_init (&childev, childcb, SIGCHLD);
		642	ev_set_priority (&childev, EV_MAXPRI);
486	ev_signal_start (&childev);	643	ev_signal_start (EV_A_ &childev);
		644	#endif
487	}	645	}
488	}	646	}
489		647
490	return ev_method;	648	return method;
491	}	649	}
492		650
493	/*****************************************************************************/	651	/*****************************************************************************/
494		652
495	void	653	void
…		…
506		664
507	void	665	void
508	ev_fork_child (void)	666	ev_fork_child (void)
509	{	667	{
510	#if EV_USE_EPOLL	668	#if EV_USE_EPOLL
511	if (ev_method == EVMETHOD_EPOLL)	669	if (method == EVMETHOD_EPOLL)
512	epoll_postfork_child ();	670	epoll_postfork_child ();
513	#endif	671	#endif
514		672
515	ev_io_stop (&sigev);	673	ev_io_stop (&sigev);
516	close (sigpipe [0]);	674	close (sigpipe [0]);
…		…
520	}	678	}
521		679
522	/*****************************************************************************/	680	/*****************************************************************************/
523		681
524	static void	682	static void
525	call_pending (void)	683	call_pending (EV_P)
526	{	684	{
		685	int pri;
		686
		687	for (pri = NUMPRI; pri--; )
527	while (pendingcnt)	688	while (pendingcnt [pri])
528	{	689	{
529	ANPENDING *p = pendings + --pendingcnt;	690	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
530		691
531	if (p->w)	692	if (p->w)
532	{	693	{
533	p->w->pending = 0;	694	p->w->pending = 0;
534	p->w->cb (p->w, p->events);	695	p->w->cb (EV_A_ p->w, p->events);
535	}	696	}
536	}	697	}
537	}	698	}
538		699
539	static void	700	static void
540	timers_reify (void)	701	timers_reify (EV_P)
541	{	702	{
542	while (timercnt && timers [0]->at <= now)	703	while (timercnt && timers [0]->at <= mn_now)
543	{	704	{
544	struct ev_timer *w = timers [0];	705	struct ev_timer *w = timers [0];
545		706
546	/* first reschedule or stop timer */	707	/* first reschedule or stop timer */
547	if (w->repeat)	708	if (w->repeat)
548	{	709	{
549	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.));
550	w->at = now + w->repeat;	711	w->at = mn_now + w->repeat;
551	downheap ((WT *)timers, timercnt, 0);	712	downheap ((WT *)timers, timercnt, 0);
552	}	713	}
553	else	714	else
554	ev_timer_stop (w); /* nonrepeating: stop timer */	715	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
555		716
556	event ((W)w, EV_TIMEOUT);	717	event ((W)w, EV_TIMEOUT);
557	}	718	}
558	}	719	}
559		720
560	static void	721	static void
561	periodics_reify (void)	722	periodics_reify (EV_P)
562	{	723	{
563	while (periodiccnt && periodics [0]->at <= ev_now)	724	while (periodiccnt && periodics [0]->at <= rt_now)
564	{	725	{
565	struct ev_periodic *w = periodics [0];	726	struct ev_periodic *w = periodics [0];
566		727
567	/* first reschedule or stop timer */	728	/* first reschedule or stop timer */
568	if (w->interval)	729	if (w->interval)
569	{	730	{
570	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;
571	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));
572	downheap ((WT *)periodics, periodiccnt, 0);	733	downheap ((WT *)periodics, periodiccnt, 0);
573	}	734	}
574	else	735	else
575	ev_periodic_stop (w); /* nonrepeating: stop timer */	736	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
576		737
577	event ((W)w, EV_PERIODIC);	738	event (EV_A_ (W)w, EV_PERIODIC);
578	}	739	}
579	}	740	}
580		741
581	static void	742	static void
582	periodics_reschedule (ev_tstamp diff)	743	periodics_reschedule (EV_P_ ev_tstamp diff)
583	{	744	{
584	int i;	745	int i;
585		746
586	/* adjust periodics after time jump */	747	/* adjust periodics after time jump */
587	for (i = 0; i < periodiccnt; ++i)	748	for (i = 0; i < periodiccnt; ++i)
588	{	749	{
589	struct ev_periodic *w = periodics [i];	750	struct ev_periodic *w = periodics [i];
590		751
591	if (w->interval)	752	if (w->interval)
592	{	753	{
593	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;
594		755
595	if (fabs (diff) >= 1e-4)	756	if (fabs (diff) >= 1e-4)
596	{	757	{
597	ev_periodic_stop (w);	758	ev_periodic_stop (EV_A_ w);
598	ev_periodic_start (w);	759	ev_periodic_start (EV_A_ w);
599		760
600	i = 0; /* restart loop, inefficient, but time jumps should be rare */	761	i = 0; /* restart loop, inefficient, but time jumps should be rare */
601	}	762	}
602	}	763	}
603	}	764	}
604	}	765	}
605		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
606	static void	785	static void
607	time_update (void)	786	time_update (EV_P)
608	{	787	{
609	int i;	788	int i;
610		789
611	ev_now = ev_time ();	790	#if EV_USE_MONOTONIC
612
613	if (have_monotonic)	791	if (expect_true (have_monotonic))
614	{	792	{
615	ev_tstamp odiff = diff;	793	if (time_update_monotonic (EV_A))
616
617	for (i = 4; --i; ) /* loop a few times, before making important decisions */
618	{	794	{
619	now = get_clock ();	795	ev_tstamp odiff = diff;
		796
		797	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		798	{
620	diff = ev_now - now;	799	diff = rt_now - mn_now;
621		800
622	if (fabs (odiff - diff) < MIN_TIMEJUMP)	801	if (fabs (odiff - diff) < MIN_TIMEJUMP)
623	return; /* all is well */	802	return; /* all is well */
624		803
625	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 */
626	}	811	}
627
628	periodics_reschedule (diff - odiff);
629	/* no timer adjustment, as the monotonic clock doesn't jump */
630	}	812	}
631	else	813	else
		814	#endif
632	{	815	{
633	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))
634	{	819	{
635	periodics_reschedule (ev_now - now);	820	periodics_reschedule (EV_A_ rt_now - mn_now);
636		821
637	/* 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 */
638	for (i = 0; i < timercnt; ++i)	823	for (i = 0; i < timercnt; ++i)
639	timers [i]->at += diff;	824	timers [i]->at += diff;
640	}	825	}
641		826
642	now = ev_now;	827	mn_now = rt_now;
643	}	828	}
644	}	829	}
645		830
646	int ev_loop_done;	831	void
		832	ev_ref (EV_P)
		833	{
		834	++activecnt;
		835	}
647		836
		837	void
		838	ev_unref (EV_P)
		839	{
		840	--activecnt;
		841	}
		842
		843	static int loop_done;
		844
		845	void
648	void ev_loop (int flags)	846	ev_loop (EV_P_ int flags)
649	{	847	{
650	double block;	848	double block;
651	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	849	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
652		850
653	do	851	do
654	{	852	{
655	/* queue check watchers (and execute them) */	853	/* queue check watchers (and execute them) */
656	if (preparecnt)	854	if (expect_false (preparecnt))
657	{	855	{
658	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	856	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
659	call_pending ();	857	call_pending (EV_A);
660	}	858	}
661		859
662	/* update fd-related kernel structures */	860	/* update fd-related kernel structures */
663	fd_reify ();	861	fd_reify (EV_A);
664		862
665	/* calculate blocking time */	863	/* calculate blocking time */
666		864
667	/* 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
668	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	{
669	ev_now = ev_time ();	873	rt_now = ev_time ();
		874	mn_now = rt_now;
		875	}
670		876
671	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	877	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
672	block = 0.;	878	block = 0.;
673	else	879	else
674	{	880	{
675	block = MAX_BLOCKTIME;	881	block = MAX_BLOCKTIME;
676		882
677	if (timercnt)	883	if (timercnt)
678	{	884	{
679	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;
680	if (block > to) block = to;	886	if (block > to) block = to;
681	}	887	}
682		888
683	if (periodiccnt)	889	if (periodiccnt)
684	{	890	{
685	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	891	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
686	if (block > to) block = to;	892	if (block > to) block = to;
687	}	893	}
688		894
689	if (block < 0.) block = 0.;	895	if (block < 0.) block = 0.;
690	}	896	}
691		897
692	method_poll (block);	898	method_poll (EV_A_ block);
693		899
694	/* update ev_now, do magic */	900	/* update rt_now, do magic */
695	time_update ();	901	time_update (EV_A);
696		902
697	/* queue pending timers and reschedule them */	903	/* queue pending timers and reschedule them */
698	timers_reify (); /* relative timers called last */	904	timers_reify (EV_A); /* relative timers called last */
699	periodics_reify (); /* absolute timers called first */	905	periodics_reify (EV_A); /* absolute timers called first */
700		906
701	/* queue idle watchers unless io or timers are pending */	907	/* queue idle watchers unless io or timers are pending */
702	if (!pendingcnt)	908	if (!pendingcnt)
703	queue_events ((W *)idles, idlecnt, EV_IDLE);	909	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
704		910
705	/* queue check watchers, to be executed first */	911	/* queue check watchers, to be executed first */
706	if (checkcnt)	912	if (checkcnt)
707	queue_events ((W *)checks, checkcnt, EV_CHECK);	913	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
708		914
709	call_pending ();	915	call_pending (EV_A);
		916	printf ("activecnt %d\n", activecnt);//D
710	}	917	}
711	while (!ev_loop_done);	918	while (activecnt && !loop_done);
712		919
713	if (ev_loop_done != 2)	920	if (loop_done != 2)
714	ev_loop_done = 0;	921	loop_done = 0;
		922	}
		923
		924	void
		925	ev_unloop (EV_P_ int how)
		926	{
		927	loop_done = how;
715	}	928	}
716		929
717	/*****************************************************************************/	930	/*****************************************************************************/
718		931
719	static void	932	inline void
720	wlist_add (WL *head, WL elem)	933	wlist_add (WL *head, WL elem)
721	{	934	{
722	elem->next = *head;	935	elem->next = *head;
723	*head = elem;	936	*head = elem;
724	}	937	}
725		938
726	static void	939	inline void
727	wlist_del (WL *head, WL elem)	940	wlist_del (WL *head, WL elem)
728	{	941	{
729	while (*head)	942	while (*head)
730	{	943	{
731	if (*head == elem)	944	if (*head == elem)
…		…
736		949
737	head = &(*head)->next;	950	head = &(*head)->next;
738	}	951	}
739	}	952	}
740		953
741	static void	954	inline void
742	ev_clear_pending (W w)	955	ev_clear_pending (EV_P_ W w)
743	{	956	{
744	if (w->pending)	957	if (w->pending)
745	{	958	{
746	pendings [w->pending - 1].w = 0;	959	pendings [ABSPRI (w)][w->pending - 1].w = 0;
747	w->pending = 0;	960	w->pending = 0;
748	}	961	}
749	}	962	}
750		963
751	static void	964	inline void
752	ev_start (W w, int active)	965	ev_start (EV_P_ W w, int active)
753	{	966	{
		967	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		968	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		969
754	w->active = active;	970	w->active = active;
		971	ev_ref (EV_A);
755	}	972	}
756		973
757	static void	974	inline void
758	ev_stop (W w)	975	ev_stop (EV_P_ W w)
759	{	976	{
		977	ev_unref (EV_A);
760	w->active = 0;	978	w->active = 0;
761	}	979	}
762		980
763	/*****************************************************************************/	981	/*****************************************************************************/
764		982
765	void	983	void
766	ev_io_start (struct ev_io *w)	984	ev_io_start (EV_P_ struct ev_io *w)
767	{	985	{
		986	int fd = w->fd;
		987
768	if (ev_is_active (w))	988	if (ev_is_active (w))
769	return;	989	return;
770		990
771	int fd = w->fd;
772
773	assert (("ev_io_start called with negative fd", fd >= 0));	991	assert (("ev_io_start called with negative fd", fd >= 0));
774		992
775	ev_start ((W)w, 1);	993	ev_start (EV_A_ (W)w, 1);
776	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	994	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
777	wlist_add ((WL *)&anfds[fd].head, (WL)w);	995	wlist_add ((WL *)&anfds[fd].head, (WL)w);
778		996
779	fd_change (fd);	997	fd_change (EV_A_ fd);
780	}	998	}
781		999
782	void	1000	void
783	ev_io_stop (struct ev_io *w)	1001	ev_io_stop (EV_P_ struct ev_io *w)
784	{	1002	{
785	ev_clear_pending ((W)w);	1003	ev_clear_pending (EV_A_ (W)w);
786	if (!ev_is_active (w))	1004	if (!ev_is_active (w))
787	return;	1005	return;
788		1006
789	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1007	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
790	ev_stop ((W)w);	1008	ev_stop (EV_A_ (W)w);
791		1009
792	fd_change (w->fd);	1010	fd_change (EV_A_ w->fd);
793	}	1011	}
794		1012
795	void	1013	void
796	ev_timer_start (struct ev_timer *w)	1014	ev_timer_start (EV_P_ struct ev_timer *w)
797	{	1015	{
798	if (ev_is_active (w))	1016	if (ev_is_active (w))
799	return;	1017	return;
800		1018
801	w->at += now;	1019	w->at += mn_now;
802		1020
803	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.));
804		1022
805	ev_start ((W)w, ++timercnt);	1023	ev_start (EV_A_ (W)w, ++timercnt);
806	array_needsize (timers, timermax, timercnt, );	1024	array_needsize (timers, timermax, timercnt, );
807	timers [timercnt - 1] = w;	1025	timers [timercnt - 1] = w;
808	upheap ((WT *)timers, timercnt - 1);	1026	upheap ((WT *)timers, timercnt - 1);
809	}	1027	}
810		1028
811	void	1029	void
812	ev_timer_stop (struct ev_timer *w)	1030	ev_timer_stop (EV_P_ struct ev_timer *w)
813	{	1031	{
814	ev_clear_pending ((W)w);	1032	ev_clear_pending (EV_A_ (W)w);
815	if (!ev_is_active (w))	1033	if (!ev_is_active (w))
816	return;	1034	return;
817		1035
818	if (w->active < timercnt--)	1036	if (w->active < timercnt--)
819	{	1037	{
…		…
821	downheap ((WT *)timers, timercnt, w->active - 1);	1039	downheap ((WT *)timers, timercnt, w->active - 1);
822	}	1040	}
823		1041
824	w->at = w->repeat;	1042	w->at = w->repeat;
825		1043
826	ev_stop ((W)w);	1044	ev_stop (EV_A_ (W)w);
827	}	1045	}
828		1046
829	void	1047	void
830	ev_timer_again (struct ev_timer *w)	1048	ev_timer_again (EV_P_ struct ev_timer *w)
831	{	1049	{
832	if (ev_is_active (w))	1050	if (ev_is_active (w))
833	{	1051	{
834	if (w->repeat)	1052	if (w->repeat)
835	{	1053	{
836	w->at = now + w->repeat;	1054	w->at = mn_now + w->repeat;
837	downheap ((WT *)timers, timercnt, w->active - 1);	1055	downheap ((WT *)timers, timercnt, w->active - 1);
838	}	1056	}
839	else	1057	else
840	ev_timer_stop (w);	1058	ev_timer_stop (EV_A_ w);
841	}	1059	}
842	else if (w->repeat)	1060	else if (w->repeat)
843	ev_timer_start (w);	1061	ev_timer_start (EV_A_ w);
844	}	1062	}
845		1063
846	void	1064	void
847	ev_periodic_start (struct ev_periodic *w)	1065	ev_periodic_start (EV_P_ struct ev_periodic *w)
848	{	1066	{
849	if (ev_is_active (w))	1067	if (ev_is_active (w))
850	return;	1068	return;
851		1069
852	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.));
853		1071
854	/* 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 */
855	if (w->interval)	1073	if (w->interval)
856	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1074	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
857		1075
858	ev_start ((W)w, ++periodiccnt);	1076	ev_start (EV_A_ (W)w, ++periodiccnt);
859	array_needsize (periodics, periodicmax, periodiccnt, );	1077	array_needsize (periodics, periodicmax, periodiccnt, );
860	periodics [periodiccnt - 1] = w;	1078	periodics [periodiccnt - 1] = w;
861	upheap ((WT *)periodics, periodiccnt - 1);	1079	upheap ((WT *)periodics, periodiccnt - 1);
862	}	1080	}
863		1081
864	void	1082	void
865	ev_periodic_stop (struct ev_periodic *w)	1083	ev_periodic_stop (EV_P_ struct ev_periodic *w)
866	{	1084	{
867	ev_clear_pending ((W)w);	1085	ev_clear_pending (EV_A_ (W)w);
868	if (!ev_is_active (w))	1086	if (!ev_is_active (w))
869	return;	1087	return;
870		1088
871	if (w->active < periodiccnt--)	1089	if (w->active < periodiccnt--)
872	{	1090	{
873	periodics [w->active - 1] = periodics [periodiccnt];	1091	periodics [w->active - 1] = periodics [periodiccnt];
874	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1092	downheap ((WT *)periodics, periodiccnt, w->active - 1);
875	}	1093	}
876		1094
877	ev_stop ((W)w);	1095	ev_stop (EV_A_ (W)w);
878	}	1096	}
879		1097
		1098	#ifndef SA_RESTART
		1099	# define SA_RESTART 0
		1100	#endif
		1101
880	void	1102	void
881	ev_signal_start (struct ev_signal *w)	1103	ev_signal_start (EV_P_ struct ev_signal *w)
882	{	1104	{
883	if (ev_is_active (w))	1105	if (ev_is_active (w))
884	return;	1106	return;
885		1107
886	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));
887		1109
888	ev_start ((W)w, 1);	1110	ev_start (EV_A_ (W)w, 1);
889	array_needsize (signals, signalmax, w->signum, signals_init);	1111	array_needsize (signals, signalmax, w->signum, signals_init);
890	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1112	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
891		1113
892	if (!w->next)	1114	if (!w->next)
893	{	1115	{
894	struct sigaction sa;	1116	struct sigaction sa;
895	sa.sa_handler = sighandler;	1117	sa.sa_handler = sighandler;
896	sigfillset (&sa.sa_mask);	1118	sigfillset (&sa.sa_mask);
897	sa.sa_flags = 0;	1119	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
898	sigaction (w->signum, &sa, 0);	1120	sigaction (w->signum, &sa, 0);
899	}	1121	}
900	}	1122	}
901		1123
902	void	1124	void
903	ev_signal_stop (struct ev_signal *w)	1125	ev_signal_stop (EV_P_ struct ev_signal *w)
904	{	1126	{
905	ev_clear_pending ((W)w);	1127	ev_clear_pending (EV_A_ (W)w);
906	if (!ev_is_active (w))	1128	if (!ev_is_active (w))
907	return;	1129	return;
908		1130
909	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1131	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
910	ev_stop ((W)w);	1132	ev_stop (EV_A_ (W)w);
911		1133
912	if (!signals [w->signum - 1].head)	1134	if (!signals [w->signum - 1].head)
913	signal (w->signum, SIG_DFL);	1135	signal (w->signum, SIG_DFL);
914	}	1136	}
915		1137
916	void	1138	void
917	ev_idle_start (struct ev_idle *w)	1139	ev_idle_start (EV_P_ struct ev_idle *w)
918	{	1140	{
919	if (ev_is_active (w))	1141	if (ev_is_active (w))
920	return;	1142	return;
921		1143
922	ev_start ((W)w, ++idlecnt);	1144	ev_start (EV_A_ (W)w, ++idlecnt);
923	array_needsize (idles, idlemax, idlecnt, );	1145	array_needsize (idles, idlemax, idlecnt, );
924	idles [idlecnt - 1] = w;	1146	idles [idlecnt - 1] = w;
925	}	1147	}
926		1148
927	void	1149	void
928	ev_idle_stop (struct ev_idle *w)	1150	ev_idle_stop (EV_P_ struct ev_idle *w)
929	{	1151	{
930	ev_clear_pending ((W)w);	1152	ev_clear_pending (EV_A_ (W)w);
931	if (ev_is_active (w))	1153	if (ev_is_active (w))
932	return;	1154	return;
933		1155
934	idles [w->active - 1] = idles [--idlecnt];	1156	idles [w->active - 1] = idles [--idlecnt];
935	ev_stop ((W)w);	1157	ev_stop (EV_A_ (W)w);
936	}	1158	}
937		1159
938	void	1160	void
939	ev_prepare_start (struct ev_prepare *w)	1161	ev_prepare_start (EV_P_ struct ev_prepare *w)
940	{	1162	{
941	if (ev_is_active (w))	1163	if (ev_is_active (w))
942	return;	1164	return;
943		1165
944	ev_start ((W)w, ++preparecnt);	1166	ev_start (EV_A_ (W)w, ++preparecnt);
945	array_needsize (prepares, preparemax, preparecnt, );	1167	array_needsize (prepares, preparemax, preparecnt, );
946	prepares [preparecnt - 1] = w;	1168	prepares [preparecnt - 1] = w;
947	}	1169	}
948		1170
949	void	1171	void
950	ev_prepare_stop (struct ev_prepare *w)	1172	ev_prepare_stop (EV_P_ struct ev_prepare *w)
951	{	1173	{
952	ev_clear_pending ((W)w);	1174	ev_clear_pending (EV_A_ (W)w);
953	if (ev_is_active (w))	1175	if (ev_is_active (w))
954	return;	1176	return;
955		1177
956	prepares [w->active - 1] = prepares [--preparecnt];	1178	prepares [w->active - 1] = prepares [--preparecnt];
957	ev_stop ((W)w);	1179	ev_stop (EV_A_ (W)w);
958	}	1180	}
959		1181
960	void	1182	void
961	ev_check_start (struct ev_check *w)	1183	ev_check_start (EV_P_ struct ev_check *w)
962	{	1184	{
963	if (ev_is_active (w))	1185	if (ev_is_active (w))
964	return;	1186	return;
965		1187
966	ev_start ((W)w, ++checkcnt);	1188	ev_start (EV_A_ (W)w, ++checkcnt);
967	array_needsize (checks, checkmax, checkcnt, );	1189	array_needsize (checks, checkmax, checkcnt, );
968	checks [checkcnt - 1] = w;	1190	checks [checkcnt - 1] = w;
969	}	1191	}
970		1192
971	void	1193	void
972	ev_check_stop (struct ev_check *w)	1194	ev_check_stop (EV_P_ struct ev_check *w)
973	{	1195	{
974	ev_clear_pending ((W)w);	1196	ev_clear_pending (EV_A_ (W)w);
975	if (ev_is_active (w))	1197	if (ev_is_active (w))
976	return;	1198	return;
977		1199
978	checks [w->active - 1] = checks [--checkcnt];	1200	checks [w->active - 1] = checks [--checkcnt];
979	ev_stop ((W)w);	1201	ev_stop (EV_A_ (W)w);
980	}	1202	}
981		1203
982	void	1204	void
983	ev_child_start (struct ev_child *w)	1205	ev_child_start (EV_P_ struct ev_child *w)
984	{	1206	{
985	if (ev_is_active (w))	1207	if (ev_is_active (w))
986	return;	1208	return;
987		1209
988	ev_start ((W)w, 1);	1210	ev_start (EV_A_ (W)w, 1);
989	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
990	}	1212	}
991		1213
992	void	1214	void
993	ev_child_stop (struct ev_child *w)	1215	ev_child_stop (EV_P_ struct ev_child *w)
994	{	1216	{
995	ev_clear_pending ((W)w);	1217	ev_clear_pending (EV_A_ (W)w);
996	if (ev_is_active (w))	1218	if (ev_is_active (w))
997	return;	1219	return;
998		1220
999	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1221	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1000	ev_stop ((W)w);	1222	ev_stop (EV_A_ (W)w);
1001	}	1223	}
1002		1224
1003	/*****************************************************************************/	1225	/*****************************************************************************/
1004		1226
1005	struct ev_once	1227	struct ev_once
…		…
1009	void (cb)(int revents, void arg);	1231	void (cb)(int revents, void arg);
1010	void *arg;	1232	void *arg;
1011	};	1233	};
1012		1234
1013	static void	1235	static void
1014	once_cb (struct ev_once *once, int revents)	1236	once_cb (EV_P_ struct ev_once *once, int revents)
1015	{	1237	{
1016	void (cb)(int revents, void arg) = once->cb;	1238	void (cb)(int revents, void arg) = once->cb;
1017	void *arg = once->arg;	1239	void *arg = once->arg;
1018		1240
1019	ev_io_stop (&once->io);	1241	ev_io_stop (EV_A_ &once->io);
1020	ev_timer_stop (&once->to);	1242	ev_timer_stop (EV_A_ &once->to);
1021	free (once);	1243	free (once);
1022		1244
1023	cb (revents, arg);	1245	cb (revents, arg);
1024	}	1246	}
1025		1247
1026	static void	1248	static void
1027	once_cb_io (struct ev_io *w, int revents)	1249	once_cb_io (EV_P_ struct ev_io *w, int revents)
1028	{	1250	{
1029	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);
1030	}	1252	}
1031		1253
1032	static void	1254	static void
1033	once_cb_to (struct ev_timer *w, int revents)	1255	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1034	{	1256	{
1035	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);
1036	}	1258	}
1037		1259
1038	void	1260	void
1039	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)
1040	{	1262	{
1041	struct ev_once *once = malloc (sizeof (struct ev_once));	1263	struct ev_once *once = malloc (sizeof (struct ev_once));
1042		1264
1043	if (!once)	1265	if (!once)
1044	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1266	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1049		1271
1050	ev_watcher_init (&once->io, once_cb_io);	1272	ev_watcher_init (&once->io, once_cb_io);
1051	if (fd >= 0)	1273	if (fd >= 0)
1052	{	1274	{
1053	ev_io_set (&once->io, fd, events);	1275	ev_io_set (&once->io, fd, events);
1054	ev_io_start (&once->io);	1276	ev_io_start (EV_A_ &once->io);
1055	}	1277	}
1056		1278
1057	ev_watcher_init (&once->to, once_cb_to);	1279	ev_watcher_init (&once->to, once_cb_to);
1058	if (timeout >= 0.)	1280	if (timeout >= 0.)
1059	{	1281	{
1060	ev_timer_set (&once->to, timeout, 0.);	1282	ev_timer_set (&once->to, timeout, 0.);
1061	ev_timer_start (&once->to);	1283	ev_timer_start (EV_A_ &once->to);
1062	}	1284	}
1063	}	1285	}
1064	}	1286	}
1065		1287
1066	/*****************************************************************************/	1288	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.36 by root, Thu Nov 1 13:11:11 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 1.36 by root, Thu Nov 1 13:11:11 2007 UTC vs.
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC