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

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) && !defined (__APPLE__)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) && !defined (__APPLE__)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	89	# endif
50	#include <sys/time.h>	90	#endif
51	#include <time.h>
52		91
53	/**/	92	/**/
54		93
55	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
57	#endif	96	#endif
58		97
59	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
61	#endif	101	#endif
62		102
63	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
65	#endif	109	#endif
66		110
67	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
69	#endif	113	#endif
…		…
84	#endif	128	#endif
85		129
86	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
89	#endif	137	#endif
90		138
91	/**/	139	/**/
92		140
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	141	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	142	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	143	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	144	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
98	#include "ev.h"	149	# include "ev.h"
		150	#endif
99		151
100	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	154	# define inline inline
103	#else	155	#else
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
110		162
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	163	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	164	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		165
		166	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		167
114	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
117		171
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	172	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		173
		174	#ifdef _WIN32
		175	# include "ev_win32.c"
		176	#endif
		177
		178	/*****************************************************************************/
		179
		180	static void (syserr_cb)(const char msg);
		181
		182	void ev_set_syserr_cb (void (cb)(const char msg))
		183	{
		184	syserr_cb = cb;
		185	}
		186
		187	static void
		188	syserr (const char *msg)
		189	{
		190	if (!msg)
		191	msg = "(libev) system error";
		192
		193	if (syserr_cb)
		194	syserr_cb (msg);
		195	else
		196	{
		197	perror (msg);
		198	abort ();
		199	}
		200	}
		201
		202	static void (alloc)(void *ptr, long size);
		203
		204	void ev_set_allocator (void (cb)(void *ptr, long size))
		205	{
		206	alloc = cb;
		207	}
		208
		209	static void *
		210	ev_realloc (void *ptr, long size)
		211	{
		212	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		213
		214	if (!ptr && size)
		215	{
		216	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		217	abort ();
		218	}
		219
		220	return ptr;
		221	}
		222
		223	#define ev_malloc(size) ev_realloc (0, (size))
		224	#define ev_free(ptr) ev_realloc ((ptr), 0)
		225
		226	/*****************************************************************************/
		227
		228	typedef struct
		229	{
		230	WL head;
		231	unsigned char events;
		232	unsigned char reify;
		233	#if EV_SELECT_IS_WINSOCKET
		234	SOCKET handle;
		235	#endif
		236	} ANFD;
		237
		238	typedef struct
		239	{
		240	W w;
		241	int events;
		242	} ANPENDING;
		243
		244	#if EV_MULTIPLICITY
		245
		246	struct ev_loop
		247	{
		248	ev_tstamp ev_rt_now;
		249	#define ev_rt_now ((loop)->ev_rt_now)
		250	#define VAR(name,decl) decl;
		251	#include "ev_vars.h"
		252	#undef VAR
		253	};
		254	#include "ev_wrap.h"
		255
		256	struct ev_loop default_loop_struct;
		257	static struct ev_loop *default_loop;
		258
		259	#else
		260
119	ev_tstamp ev_now;	261	ev_tstamp ev_rt_now;
120	int ev_method;	262	#define VAR(name,decl) static decl;
		263	#include "ev_vars.h"
		264	#undef VAR
121		265
122	static int have_monotonic; /* runtime */	266	static int default_loop;
123		267
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	268	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		269
128	/*****************************************************************************/	270	/*****************************************************************************/
129		271
130	ev_tstamp	272	ev_tstamp
131	ev_time (void)	273	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	281	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	282	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	283	#endif
142	}	284	}
143		285
144	static ev_tstamp	286	inline ev_tstamp
145	get_clock (void)	287	get_clock (void)
146	{	288	{
147	#if EV_USE_MONOTONIC	289	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	290	if (expect_true (have_monotonic))
149	{	291	{
…		…
154	#endif	296	#endif
155		297
156	return ev_time ();	298	return ev_time ();
157	}	299	}
158		300
		301	#if EV_MULTIPLICITY
		302	ev_tstamp
		303	ev_now (EV_P)
		304	{
		305	return ev_rt_now;
		306	}
		307	#endif
		308
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		310
161	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
163	{ \	313	{ \
164	int newcnt = cur; \	314	int newcnt = cur; \
165	do \	315	do \
166	{ \	316	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	318	} \
169	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
170	\	320	\
171	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	323	cur = newcnt; \
174	}	324	}
		325
		326	#define array_slim(type,stem) \
		327	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		328	{ \
		329	stem ## max = array_roundsize (stem ## cnt >> 1); \
		330	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		331	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		332	}
		333
		334	#define array_free(stem, idx) \
		335	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		336
176	/*****************************************************************************/	337	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		338
188	static void	339	static void
189	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
190	{	341	{
191	while (count--)	342	while (count--)
…		…
196		347
197	++base;	348	++base;
198	}	349	}
199	}	350	}
200		351
201	typedef struct	352	void
		353	ev_feed_event (EV_P_ void *w, int revents)
202	{	354	{
203	W w;	355	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		356
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	357	if (w_->pending)
214	{	358	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	360	return;
217	}	361	}
218		362
219	w->pending = ++pendingcnt [ABSPRI (w)];	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	364	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	367	}
224		368
225	static void	369	static void
226	queue_events (W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	371	{
228	int i;	372	int i;
229		373
230	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
232	}	376	}
233		377
234	static void	378	inline void
235	fd_event (int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
236	{	380	{
237	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	382	struct ev_io *w;
239		383
240	for (w = anfd->head; w; w = w->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	385	{
242	int ev = w->events & events;	386	int ev = w->events & revents;
243		387
244	if (ev)	388	if (ev)
245	event ((W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
246	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
247	}	397	}
248		398
249	/*****************************************************************************/	399	/*****************************************************************************/
250		400
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	401	static void
255	fd_reify (void)	402	fd_reify (EV_P)
256	{	403	{
257	int i;	404	int i;
258		405
259	for (i = 0; i < fdchangecnt; ++i)	406	for (i = 0; i < fdchangecnt; ++i)
260	{	407	{
…		…
262	ANFD *anfd = anfds + fd;	409	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	410	struct ev_io *w;
264		411
265	int events = 0;	412	int events = 0;
266		413
267	for (w = anfd->head; w; w = w->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	415	events \|= w->events;
269		416
		417	#if EV_SELECT_IS_WINSOCKET
		418	if (events)
		419	{
		420	unsigned long argp;
		421	anfd->handle = _get_osfhandle (fd);
		422	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		423	}
		424	#endif
		425
270	anfd->reify = 0;	426	anfd->reify = 0;
271		427
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	429	anfd->events = events;
276	}
277	}	430	}
278		431
279	fdchangecnt = 0;	432	fdchangecnt = 0;
280	}	433	}
281		434
282	static void	435	static void
283	fd_change (int fd)	436	fd_change (EV_P_ int fd)
284	{	437	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
286	return;	439	return;
287		440
288	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
289		442
290	++fdchangecnt;	443	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
293	}	446	}
294		447
295	static void	448	static void
296	fd_kill (int fd)	449	fd_kill (EV_P_ int fd)
297	{	450	{
298	struct ev_io *w;	451	struct ev_io *w;
299		452
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
302	{	454	{
303	ev_io_stop (w);	455	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	457	}
		458	}
		459
		460	static int
		461	fd_valid (int fd)
		462	{
		463	#ifdef _WIN32
		464	return _get_osfhandle (fd) != -1;
		465	#else
		466	return fcntl (fd, F_GETFD) != -1;
		467	#endif
306	}	468	}
307		469
308	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
309	static void	471	static void
310	fd_ebadf (void)	472	fd_ebadf (EV_P)
311	{	473	{
312	int fd;	474	int fd;
313		475
314	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	477	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	479	fd_kill (EV_A_ fd);
318	}	480	}
319		481
320	/* called on ENOMEM in select/poll to kill some fds and retry */	482	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	483	static void
322	fd_enomem (void)	484	fd_enomem (EV_P)
323	{	485	{
324	int fd = anfdmax;	486	int fd;
325		487
326	while (fd--)	488	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	489	if (anfds [fd].events)
328	{	490	{
329	close (fd);
330	fd_kill (fd);	491	fd_kill (EV_A_ fd);
331	return;	492	return;
332	}	493	}
333	}	494	}
334		495
		496	/* usually called after fork if method needs to re-arm all fds from scratch */
		497	static void
		498	fd_rearm_all (EV_P)
		499	{
		500	int fd;
		501
		502	/* this should be highly optimised to not do anything but set a flag */
		503	for (fd = 0; fd < anfdmax; ++fd)
		504	if (anfds [fd].events)
		505	{
		506	anfds [fd].events = 0;
		507	fd_change (EV_A_ fd);
		508	}
		509	}
		510
335	/*****************************************************************************/	511	/*****************************************************************************/
336		512
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	513	static void
344	upheap (WT *timers, int k)	514	upheap (WT *heap, int k)
345	{	515	{
346	WT w = timers [k];	516	WT w = heap [k];
347		517
348	while (k && timers [k >> 1]->at > w->at)	518	while (k && heap [k >> 1]->at > w->at)
349	{	519	{
350	timers [k] = timers [k >> 1];	520	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
352	k >>= 1;	522	k >>= 1;
353	}	523	}
354		524
355	timers [k] = w;	525	heap [k] = w;
356	timers [k]->active = k + 1;	526	((W)heap [k])->active = k + 1;
357		527
358	}	528	}
359		529
360	static void	530	static void
361	downheap (WT *timers, int N, int k)	531	downheap (WT *heap, int N, int k)
362	{	532	{
363	WT w = timers [k];	533	WT w = heap [k];
364		534
365	while (k < (N >> 1))	535	while (k < (N >> 1))
366	{	536	{
367	int j = k << 1;	537	int j = k << 1;
368		538
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	539	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	540	++j;
371		541
372	if (w->at <= timers [j]->at)	542	if (w->at <= heap [j]->at)
373	break;	543	break;
374		544
375	timers [k] = timers [j];	545	heap [k] = heap [j];
376	timers [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
377	k = j;	547	k = j;
378	}	548	}
379		549
380	timers [k] = w;	550	heap [k] = w;
381	timers [k]->active = k + 1;	551	((W)heap [k])->active = k + 1;
		552	}
		553
		554	inline void
		555	adjustheap (WT *heap, int N, int k)
		556	{
		557	upheap (heap, k);
		558	downheap (heap, N, k);
382	}	559	}
383		560
384	/*****************************************************************************/	561	/*****************************************************************************/
385		562
386	typedef struct	563	typedef struct
387	{	564	{
388	struct ev_signal *head;	565	WL head;
389	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
390	} ANSIG;	567	} ANSIG;
391		568
392	static ANSIG *signals;	569	static ANSIG *signals;
393	static int signalmax;	570	static int signalmax;
…		…
409	}	586	}
410		587
411	static void	588	static void
412	sighandler (int signum)	589	sighandler (int signum)
413	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
414	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
415		596
416	if (!gotsig)	597	if (!gotsig)
417	{	598	{
		599	int old_errno = errno;
418	gotsig = 1;	600	gotsig = 1;
419	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
		602	errno = old_errno;
420	}	603	}
421	}	604	}
422		605
		606	void
		607	ev_feed_signal_event (EV_P_ int signum)
		608	{
		609	WL w;
		610
		611	#if EV_MULTIPLICITY
		612	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		613	#endif
		614
		615	--signum;
		616
		617	if (signum < 0 \|\| signum >= signalmax)
		618	return;
		619
		620	signals [signum].gotsig = 0;
		621
		622	for (w = signals [signum].head; w; w = w->next)
		623	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		624	}
		625
423	static void	626	static void
424	sigcb (struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	628	{
426	struct ev_signal *w;
427	int signum;	629	int signum;
428		630
429	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
430	gotsig = 0;	632	gotsig = 0;
431		633
432	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
433	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
434	{	636	ev_feed_signal_event (EV_A_ signum + 1);
435	signals [signum].gotsig = 0;
436
437	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);
439	}
440	}	637	}
441		638
442	static void	639	inline void
443	siginit (void)	640	fd_intern (int fd)
444	{	641	{
445	#ifndef WIN32	642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	646	fcntl (fd, F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448
449	/* rather than sort out wether we really need nb, set it */
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	647	fcntl (fd, F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	648	#endif
		649	}
		650
		651	static void
		652	siginit (EV_P)
		653	{
		654	fd_intern (sigpipe [0]);
		655	fd_intern (sigpipe [1]);
453		656
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	658	ev_io_start (EV_A_ &sigev);
		659	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	660	}
457		661
458	/*****************************************************************************/	662	/*****************************************************************************/
459		663
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
472	static struct ev_signal childev;	668	static struct ev_signal childev;
473
474	#ifndef WIN32
475		669
476	#ifndef WCONTINUED	670	#ifndef WCONTINUED
477	# define WCONTINUED 0	671	# define WCONTINUED 0
478	#endif	672	#endif
479		673
480	static void	674	static void
481	childcb (struct ev_signal *sw, int revents)	675	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	676	{
483	struct ev_child *w;	677	struct ev_child *w;
		678
		679	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		680	if (w->pid == pid \|\| !w->pid)
		681	{
		682	ev_priority (w) = ev_priority (sw); /* need to do it now */
		683	w->rpid = pid;
		684	w->rstatus = status;
		685	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		686	}
		687	}
		688
		689	static void
		690	childcb (EV_P_ struct ev_signal *sw, int revents)
		691	{
484	int pid, status;	692	int pid, status;
485		693
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	695	{
488	if (w->pid == pid \|\| !w->pid)	696	/* make sure we are called again until all childs have been reaped */
489	{	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
490	w->status = status;	698
491	event ((W)w, EV_CHILD);	699	child_reap (EV_A_ sw, pid, pid, status);
492	}	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		701	}
493	}	702	}
494		703
495	#endif	704	#endif
496		705
497	/*****************************************************************************/	706	/*****************************************************************************/
…		…
519	ev_version_minor (void)	728	ev_version_minor (void)
520	{	729	{
521	return EV_VERSION_MINOR;	730	return EV_VERSION_MINOR;
522	}	731	}
523		732
524	/* return true if we are running with elevated privileges and ignore env variables */	733	/* return true if we are running with elevated privileges and should ignore env variables */
525	static int	734	static int
526	enable_secure ()	735	enable_secure (void)
527	{	736	{
		737	#ifdef _WIN32
		738	return 0;
		739	#else
528	return getuid () != geteuid ()	740	return getuid () != geteuid ()
529	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
		742	#endif
530	}	743	}
531		744
532	int ev_init (int methods)	745	int
		746	ev_method (EV_P)
533	{	747	{
		748	return method;
		749	}
		750
		751	static void
		752	loop_init (EV_P_ int methods)
		753	{
534	if (!ev_method)	754	if (!method)
535	{	755	{
536	#if EV_USE_MONOTONIC	756	#if EV_USE_MONOTONIC
537	{	757	{
538	struct timespec ts;	758	struct timespec ts;
539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540	have_monotonic = 1;	760	have_monotonic = 1;
541	}	761	}
542	#endif	762	#endif
543		763
544	ev_now = ev_time ();	764	ev_rt_now = ev_time ();
545	now = get_clock ();	765	mn_now = get_clock ();
546	now_floor = now;	766	now_floor = mn_now;
547	diff = ev_now - now;	767	rtmn_diff = ev_rt_now - mn_now;
548
549	if (pipe (sigpipe))
550	return 0;
551		768
552	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
553	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
554	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
555	else	772	else
556	methods = EVMETHOD_ANY;	773	methods = EVMETHOD_ANY;
557		774
558	ev_method = 0;	775	method = 0;
559	#if EV_USE_KQUEUE	776	#if EV_USE_KQUEUE
560	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
561	#endif	778	#endif
562	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
563	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
564	#endif	781	#endif
565	#if EV_USE_POLL	782	#if EV_USE_POLL
566	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
567	#endif	784	#endif
568	#if EV_USE_SELECT	785	#if EV_USE_SELECT
569	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
570	#endif	787	#endif
571		788
		789	ev_init (&sigev, sigcb);
		790	ev_set_priority (&sigev, EV_MAXPRI);
		791	}
		792	}
		793
		794	void
		795	loop_destroy (EV_P)
		796	{
		797	int i;
		798
		799	#if EV_USE_KQUEUE
		800	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		801	#endif
		802	#if EV_USE_EPOLL
		803	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		804	#endif
		805	#if EV_USE_POLL
		806	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		807	#endif
		808	#if EV_USE_SELECT
		809	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		810	#endif
		811
		812	for (i = NUMPRI; i--; )
		813	array_free (pending, [i]);
		814
		815	/* have to use the microsoft-never-gets-it-right macro */
		816	array_free (fdchange, EMPTY);
		817	array_free (timer, EMPTY);
		818	#if EV_PERIODICS
		819	array_free (periodic, EMPTY);
		820	#endif
		821	array_free (idle, EMPTY);
		822	array_free (prepare, EMPTY);
		823	array_free (check, EMPTY);
		824
		825	method = 0;
		826	}
		827
		828	static void
		829	loop_fork (EV_P)
		830	{
		831	#if EV_USE_EPOLL
		832	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		833	#endif
		834	#if EV_USE_KQUEUE
		835	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		836	#endif
		837
		838	if (ev_is_active (&sigev))
		839	{
		840	/* default loop */
		841
		842	ev_ref (EV_A);
		843	ev_io_stop (EV_A_ &sigev);
		844	close (sigpipe [0]);
		845	close (sigpipe [1]);
		846
		847	while (pipe (sigpipe))
		848	syserr ("(libev) error creating pipe");
		849
		850	siginit (EV_A);
		851	}
		852
		853	postfork = 0;
		854	}
		855
		856	#if EV_MULTIPLICITY
		857	struct ev_loop *
		858	ev_loop_new (int methods)
		859	{
		860	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		861
		862	memset (loop, 0, sizeof (struct ev_loop));
		863
		864	loop_init (EV_A_ methods);
		865
		866	if (ev_method (EV_A))
		867	return loop;
		868
		869	return 0;
		870	}
		871
		872	void
		873	ev_loop_destroy (EV_P)
		874	{
		875	loop_destroy (EV_A);
		876	ev_free (loop);
		877	}
		878
		879	void
		880	ev_loop_fork (EV_P)
		881	{
		882	postfork = 1;
		883	}
		884
		885	#endif
		886
		887	#if EV_MULTIPLICITY
		888	struct ev_loop *
		889	#else
		890	int
		891	#endif
		892	ev_default_loop (int methods)
		893	{
		894	if (sigpipe [0] == sigpipe [1])
		895	if (pipe (sigpipe))
		896	return 0;
		897
		898	if (!default_loop)
		899	{
		900	#if EV_MULTIPLICITY
		901	struct ev_loop *loop = default_loop = &default_loop_struct;
		902	#else
		903	default_loop = 1;
		904	#endif
		905
		906	loop_init (EV_A_ methods);
		907
572	if (ev_method)	908	if (ev_method (EV_A))
573	{	909	{
574	ev_watcher_init (&sigev, sigcb);
575	siginit ();	910	siginit (EV_A);
576		911
577	#ifndef WIN32	912	#ifndef _WIN32
578	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
		914	ev_set_priority (&childev, EV_MAXPRI);
579	ev_signal_start (&childev);	915	ev_signal_start (EV_A_ &childev);
		916	ev_unref (EV_A); /* child watcher should not keep loop alive */
580	#endif	917	#endif
581	}	918	}
		919	else
		920	default_loop = 0;
582	}	921	}
583		922
584	return ev_method;	923	return default_loop;
		924	}
		925
		926	void
		927	ev_default_destroy (void)
		928	{
		929	#if EV_MULTIPLICITY
		930	struct ev_loop *loop = default_loop;
		931	#endif
		932
		933	#ifndef _WIN32
		934	ev_ref (EV_A); /* child watcher */
		935	ev_signal_stop (EV_A_ &childev);
		936	#endif
		937
		938	ev_ref (EV_A); /* signal watcher */
		939	ev_io_stop (EV_A_ &sigev);
		940
		941	close (sigpipe [0]); sigpipe [0] = 0;
		942	close (sigpipe [1]); sigpipe [1] = 0;
		943
		944	loop_destroy (EV_A);
		945	}
		946
		947	void
		948	ev_default_fork (void)
		949	{
		950	#if EV_MULTIPLICITY
		951	struct ev_loop *loop = default_loop;
		952	#endif
		953
		954	if (method)
		955	postfork = 1;
585	}	956	}
586		957
587	/*****************************************************************************/	958	/*****************************************************************************/
588		959
589	void
590	ev_fork_prepare (void)
591	{
592	/* nop */
593	}
594
595	void
596	ev_fork_parent (void)
597	{
598	/* nop */
599	}
600
601	void
602	ev_fork_child (void)
603	{
604	#if EV_USE_EPOLL
605	if (ev_method == EVMETHOD_EPOLL)
606	epoll_postfork_child ();
607	#endif
608
609	ev_io_stop (&sigev);
610	close (sigpipe [0]);
611	close (sigpipe [1]);
612	pipe (sigpipe);
613	siginit ();
614	}
615
616	/*****************************************************************************/
617
618	static void	960	static int
		961	any_pending (EV_P)
		962	{
		963	int pri;
		964
		965	for (pri = NUMPRI; pri--; )
		966	if (pendingcnt [pri])
		967	return 1;
		968
		969	return 0;
		970	}
		971
		972	static void
619	call_pending (void)	973	call_pending (EV_P)
620	{	974	{
621	int pri;	975	int pri;
622		976
623	for (pri = NUMPRI; pri--; )	977	for (pri = NUMPRI; pri--; )
624	while (pendingcnt [pri])	978	while (pendingcnt [pri])
…		…
626	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
627		981
628	if (p->w)	982	if (p->w)
629	{	983	{
630	p->w->pending = 0;	984	p->w->pending = 0;
631	p->w->cb (p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
632	}	986	}
633	}	987	}
634	}	988	}
635		989
636	static void	990	static void
637	timers_reify (void)	991	timers_reify (EV_P)
638	{	992	{
639	while (timercnt && timers [0]->at <= now)	993	while (timercnt && ((WT)timers [0])->at <= mn_now)
640	{	994	{
641	struct ev_timer *w = timers [0];	995	struct ev_timer *w = timers [0];
		996
		997	assert (("inactive timer on timer heap detected", ev_is_active (w)));
642		998
643	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
644	if (w->repeat)	1000	if (w->repeat)
645	{	1001	{
646	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1002	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1003
647	w->at = now + w->repeat;	1004	((WT)w)->at += w->repeat;
		1005	if (((WT)w)->at < mn_now)
		1006	((WT)w)->at = mn_now;
		1007
648	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
649	}	1009	}
650	else	1010	else
651	ev_timer_stop (w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
652		1012
653	event ((W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
654	}	1014	}
655	}	1015	}
656		1016
		1017	#if EV_PERIODICS
657	static void	1018	static void
658	periodics_reify (void)	1019	periodics_reify (EV_P)
659	{	1020	{
660	while (periodiccnt && periodics [0]->at <= ev_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
661	{	1022	{
662	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
663		1024
		1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1026
664	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
665	if (w->interval)	1028	if (w->reschedule_cb)
666	{	1029	{
		1030	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1031
		1032	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1033	downheap ((WT *)periodics, periodiccnt, 0);
		1034	}
		1035	else if (w->interval)
		1036	{
667	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1037	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
668	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1038	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
669	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
670	}	1040	}
671	else	1041	else
672	ev_periodic_stop (w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
673		1043
674	event ((W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
675	}	1045	}
676	}	1046	}
677		1047
678	static void	1048	static void
679	periodics_reschedule (ev_tstamp diff)	1049	periodics_reschedule (EV_P)
680	{	1050	{
681	int i;	1051	int i;
682		1052
683	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
684	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
685	{	1055	{
686	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
687		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
688	if (w->interval)	1060	else if (w->interval)
689	{
690	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1061	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
691
692	if (fabs (diff) >= 1e-4)
693	{
694	ev_periodic_stop (w);
695	ev_periodic_start (w);
696
697	i = 0; /* restart loop, inefficient, but time jumps should be rare */
698	}
699	}
700	}	1062	}
701	}
702		1063
703	static int	1064	/* now rebuild the heap */
		1065	for (i = periodiccnt >> 1; i--; )
		1066	downheap ((WT *)periodics, periodiccnt, i);
		1067	}
		1068	#endif
		1069
		1070	inline int
704	time_update_monotonic (void)	1071	time_update_monotonic (EV_P)
705	{	1072	{
706	now = get_clock ();	1073	mn_now = get_clock ();
707		1074
708	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
709	{	1076	{
710	ev_now = now + diff;	1077	ev_rt_now = rtmn_diff + mn_now;
711	return 0;	1078	return 0;
712	}	1079	}
713	else	1080	else
714	{	1081	{
715	now_floor = now;	1082	now_floor = mn_now;
716	ev_now = ev_time ();	1083	ev_rt_now = ev_time ();
717	return 1;	1084	return 1;
718	}	1085	}
719	}	1086	}
720		1087
721	static void	1088	static void
722	time_update (void)	1089	time_update (EV_P)
723	{	1090	{
724	int i;	1091	int i;
725		1092
726	#if EV_USE_MONOTONIC	1093	#if EV_USE_MONOTONIC
727	if (expect_true (have_monotonic))	1094	if (expect_true (have_monotonic))
728	{	1095	{
729	if (time_update_monotonic ())	1096	if (time_update_monotonic (EV_A))
730	{	1097	{
731	ev_tstamp odiff = diff;	1098	ev_tstamp odiff = rtmn_diff;
732		1099
733	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1100	for (i = 4; --i; ) /* loop a few times, before making important decisions */
734	{	1101	{
735	diff = ev_now - now;	1102	rtmn_diff = ev_rt_now - mn_now;
736		1103
737	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
738	return; /* all is well */	1105	return; /* all is well */
739		1106
740	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
741	now = get_clock ();	1108	mn_now = get_clock ();
742	now_floor = now;	1109	now_floor = mn_now;
743	}	1110	}
744		1111
		1112	# if EV_PERIODICS
745	periodics_reschedule (diff - odiff);	1113	periodics_reschedule (EV_A);
		1114	# endif
746	/* no timer adjustment, as the monotonic clock doesn't jump */	1115	/* no timer adjustment, as the monotonic clock doesn't jump */
		1116	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
747	}	1117	}
748	}	1118	}
749	else	1119	else
750	#endif	1120	#endif
751	{	1121	{
752	ev_now = ev_time ();	1122	ev_rt_now = ev_time ();
753		1123
754	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1124	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
755	{	1125	{
		1126	#if EV_PERIODICS
756	periodics_reschedule (ev_now - now);	1127	periodics_reschedule (EV_A);
		1128	#endif
757		1129
758	/* adjust timers. this is easy, as the offset is the same for all */	1130	/* adjust timers. this is easy, as the offset is the same for all */
759	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
760	timers [i]->at += diff;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
761	}	1133	}
762		1134
763	now = ev_now;	1135	mn_now = ev_rt_now;
764	}	1136	}
765	}	1137	}
766		1138
767	int ev_loop_done;	1139	void
		1140	ev_ref (EV_P)
		1141	{
		1142	++activecnt;
		1143	}
768		1144
		1145	void
		1146	ev_unref (EV_P)
		1147	{
		1148	--activecnt;
		1149	}
		1150
		1151	static int loop_done;
		1152
		1153	void
769	void ev_loop (int flags)	1154	ev_loop (EV_P_ int flags)
770	{	1155	{
771	double block;	1156	double block;
772	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1157	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
773		1158
774	do	1159	do
775	{	1160	{
776	/* queue check watchers (and execute them) */	1161	/* queue check watchers (and execute them) */
777	if (expect_false (preparecnt))	1162	if (expect_false (preparecnt))
778	{	1163	{
779	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
780	call_pending ();	1165	call_pending (EV_A);
781	}	1166	}
782		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
783	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
784	fd_reify ();	1173	fd_reify (EV_A);
785		1174
786	/* calculate blocking time */	1175	/* calculate blocking time */
787		1176
788	/* we only need this for !monotonic clockor timers, but as we basically	1177	/* we only need this for !monotonic clock or timers, but as we basically
789	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
790	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
792	time_update_monotonic ();	1181	time_update_monotonic (EV_A);
793	else	1182	else
794	#endif	1183	#endif
795	{	1184	{
796	ev_now = ev_time ();	1185	ev_rt_now = ev_time ();
797	now = ev_now;	1186	mn_now = ev_rt_now;
798	}	1187	}
799		1188
800	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
801	block = 0.;	1190	block = 0.;
802	else	1191	else
803	{	1192	{
804	block = MAX_BLOCKTIME;	1193	block = MAX_BLOCKTIME;
805		1194
806	if (timercnt)	1195	if (timercnt)
807	{	1196	{
808	ev_tstamp to = timers [0]->at - now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
809	if (block > to) block = to;	1198	if (block > to) block = to;
810	}	1199	}
811		1200
		1201	#if EV_PERIODICS
812	if (periodiccnt)	1202	if (periodiccnt)
813	{	1203	{
814	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
815	if (block > to) block = to;	1205	if (block > to) block = to;
816	}	1206	}
		1207	#endif
817		1208
818	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
819	}	1210	}
820		1211
821	method_poll (block);	1212	method_poll (EV_A_ block);
822		1213
823	/* update ev_now, do magic */	1214	/* update ev_rt_now, do magic */
824	time_update ();	1215	time_update (EV_A);
825		1216
826	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
827	timers_reify (); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
828	periodics_reify (); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
829		1222
830	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
831	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
832	queue_events ((W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
833		1226
834	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
835	if (checkcnt)	1228	if (checkcnt)
836	queue_events ((W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
837		1230
838	call_pending ();	1231	call_pending (EV_A);
839	}	1232	}
840	while (!ev_loop_done);	1233	while (activecnt && !loop_done);
841		1234
842	if (ev_loop_done != 2)	1235	if (loop_done != 2)
843	ev_loop_done = 0;	1236	loop_done = 0;
		1237	}
		1238
		1239	void
		1240	ev_unloop (EV_P_ int how)
		1241	{
		1242	loop_done = how;
844	}	1243	}
845		1244
846	/*****************************************************************************/	1245	/*****************************************************************************/
847		1246
848	static void	1247	inline void
849	wlist_add (WL *head, WL elem)	1248	wlist_add (WL *head, WL elem)
850	{	1249	{
851	elem->next = *head;	1250	elem->next = *head;
852	*head = elem;	1251	*head = elem;
853	}	1252	}
854		1253
855	static void	1254	inline void
856	wlist_del (WL *head, WL elem)	1255	wlist_del (WL *head, WL elem)
857	{	1256	{
858	while (*head)	1257	while (*head)
859	{	1258	{
860	if (*head == elem)	1259	if (*head == elem)
…		…
865		1264
866	head = &(*head)->next;	1265	head = &(*head)->next;
867	}	1266	}
868	}	1267	}
869		1268
870	static void	1269	inline void
871	ev_clear_pending (W w)	1270	ev_clear_pending (EV_P_ W w)
872	{	1271	{
873	if (w->pending)	1272	if (w->pending)
874	{	1273	{
875	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1274	pendings [ABSPRI (w)][w->pending - 1].w = 0;
876	w->pending = 0;	1275	w->pending = 0;
877	}	1276	}
878	}	1277	}
879		1278
880	static void	1279	inline void
881	ev_start (W w, int active)	1280	ev_start (EV_P_ W w, int active)
882	{	1281	{
883	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1282	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1283	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885		1284
886	w->active = active;	1285	w->active = active;
		1286	ev_ref (EV_A);
887	}	1287	}
888		1288
889	static void	1289	inline void
890	ev_stop (W w)	1290	ev_stop (EV_P_ W w)
891	{	1291	{
		1292	ev_unref (EV_A);
892	w->active = 0;	1293	w->active = 0;
893	}	1294	}
894		1295
895	/*****************************************************************************/	1296	/*****************************************************************************/
896		1297
897	void	1298	void
898	ev_io_start (struct ev_io *w)	1299	ev_io_start (EV_P_ struct ev_io *w)
899	{	1300	{
900	int fd = w->fd;	1301	int fd = w->fd;
901		1302
902	if (ev_is_active (w))	1303	if (ev_is_active (w))
903	return;	1304	return;
904		1305
905	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
906		1307
907	ev_start ((W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
908	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
909	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
910		1311
911	fd_change (fd);	1312	fd_change (EV_A_ fd);
912	}	1313	}
913		1314
914	void	1315	void
915	ev_io_stop (struct ev_io *w)	1316	ev_io_stop (EV_P_ struct ev_io *w)
916	{	1317	{
917	ev_clear_pending ((W)w);	1318	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
919	return;	1320	return;
920		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
921	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
922	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
923		1326
924	fd_change (w->fd);	1327	fd_change (EV_A_ w->fd);
925	}	1328	}
926		1329
927	void	1330	void
928	ev_timer_start (struct ev_timer *w)	1331	ev_timer_start (EV_P_ struct ev_timer *w)
929	{	1332	{
930	if (ev_is_active (w))	1333	if (ev_is_active (w))
931	return;	1334	return;
932		1335
933	w->at += now;	1336	((WT)w)->at += mn_now;
934		1337
935	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1338	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
936		1339
937	ev_start ((W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
938	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
939	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
940	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
941	}
942		1344
		1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1346	}
		1347
943	void	1348	void
944	ev_timer_stop (struct ev_timer *w)	1349	ev_timer_stop (EV_P_ struct ev_timer *w)
945	{	1350	{
946	ev_clear_pending ((W)w);	1351	ev_clear_pending (EV_A_ (W)w);
947	if (!ev_is_active (w))	1352	if (!ev_is_active (w))
948	return;	1353	return;
949		1354
		1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1356
950	if (w->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
951	{	1358	{
952	timers [w->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
953	downheap ((WT *)timers, timercnt, w->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
954	}	1361	}
955		1362
956	w->at = w->repeat;	1363	((WT)w)->at -= mn_now;
957		1364
958	ev_stop ((W)w);	1365	ev_stop (EV_A_ (W)w);
959	}	1366	}
960		1367
961	void	1368	void
962	ev_timer_again (struct ev_timer *w)	1369	ev_timer_again (EV_P_ struct ev_timer *w)
963	{	1370	{
964	if (ev_is_active (w))	1371	if (ev_is_active (w))
965	{	1372	{
966	if (w->repeat)	1373	if (w->repeat)
967	{	1374	{
968	w->at = now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
969	downheap ((WT *)timers, timercnt, w->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
970	}	1377	}
971	else	1378	else
972	ev_timer_stop (w);	1379	ev_timer_stop (EV_A_ w);
973	}	1380	}
974	else if (w->repeat)	1381	else if (w->repeat)
975	ev_timer_start (w);	1382	ev_timer_start (EV_A_ w);
976	}	1383	}
977		1384
		1385	#if EV_PERIODICS
978	void	1386	void
979	ev_periodic_start (struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
980	{	1388	{
981	if (ev_is_active (w))	1389	if (ev_is_active (w))
982	return;	1390	return;
983		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
984	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1396	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
985
986	/* this formula differs from the one in periodic_reify because we do not always round up */	1397	/* this formula differs from the one in periodic_reify because we do not always round up */
987	if (w->interval)
988	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1398	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1399	}
989		1400
990	ev_start ((W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
991	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
992	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
993	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
994	}
995		1405
		1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1407	}
		1408
996	void	1409	void
997	ev_periodic_stop (struct ev_periodic *w)	1410	ev_periodic_stop (EV_P_ struct ev_periodic *w)
998	{	1411	{
999	ev_clear_pending ((W)w);	1412	ev_clear_pending (EV_A_ (W)w);
1000	if (!ev_is_active (w))	1413	if (!ev_is_active (w))
1001	return;	1414	return;
1002		1415
		1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1417
1003	if (w->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
1004	{	1419	{
1005	periodics [w->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1006	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1007	}	1422	}
1008		1423
1009	ev_stop ((W)w);	1424	ev_stop (EV_A_ (W)w);
1010	}	1425	}
1011		1426
1012	void	1427	void
		1428	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1429	{
		1430	/* TODO: use adjustheap and recalculation */
		1431	ev_periodic_stop (EV_A_ w);
		1432	ev_periodic_start (EV_A_ w);
		1433	}
		1434	#endif
		1435
		1436	void
1013	ev_signal_start (struct ev_signal *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
1014	{	1438	{
1015	if (ev_is_active (w))	1439	if (ev_is_active (w))
1016	return;	1440	return;
1017		1441
		1442	ev_start (EV_A_ (W)w, ++idlecnt);
		1443	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1444	idles [idlecnt - 1] = w;
		1445	}
		1446
		1447	void
		1448	ev_idle_stop (EV_P_ struct ev_idle *w)
		1449	{
		1450	ev_clear_pending (EV_A_ (W)w);
		1451	if (!ev_is_active (w))
		1452	return;
		1453
		1454	idles [((W)w)->active - 1] = idles [--idlecnt];
		1455	ev_stop (EV_A_ (W)w);
		1456	}
		1457
		1458	void
		1459	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1460	{
		1461	if (ev_is_active (w))
		1462	return;
		1463
		1464	ev_start (EV_A_ (W)w, ++preparecnt);
		1465	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1466	prepares [preparecnt - 1] = w;
		1467	}
		1468
		1469	void
		1470	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1471	{
		1472	ev_clear_pending (EV_A_ (W)w);
		1473	if (!ev_is_active (w))
		1474	return;
		1475
		1476	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1477	ev_stop (EV_A_ (W)w);
		1478	}
		1479
		1480	void
		1481	ev_check_start (EV_P_ struct ev_check *w)
		1482	{
		1483	if (ev_is_active (w))
		1484	return;
		1485
		1486	ev_start (EV_A_ (W)w, ++checkcnt);
		1487	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1488	checks [checkcnt - 1] = w;
		1489	}
		1490
		1491	void
		1492	ev_check_stop (EV_P_ struct ev_check *w)
		1493	{
		1494	ev_clear_pending (EV_A_ (W)w);
		1495	if (!ev_is_active (w))
		1496	return;
		1497
		1498	checks [((W)w)->active - 1] = checks [--checkcnt];
		1499	ev_stop (EV_A_ (W)w);
		1500	}
		1501
		1502	#ifndef SA_RESTART
		1503	# define SA_RESTART 0
		1504	#endif
		1505
		1506	void
		1507	ev_signal_start (EV_P_ struct ev_signal *w)
		1508	{
		1509	#if EV_MULTIPLICITY
		1510	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1511	#endif
		1512	if (ev_is_active (w))
		1513	return;
		1514
1018	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1515	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1019		1516
1020	ev_start ((W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
1021	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1022	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1023		1520
1024	if (!w->next)	1521	if (!((WL)w)->next)
1025	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
1026	struct sigaction sa;	1526	struct sigaction sa;
1027	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
1028	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
1029	sa.sa_flags = 0;	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1030	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
1031	}	1532	}
1032	}	1533	}
1033		1534
1034	void	1535	void
1035	ev_signal_stop (struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
1036	{	1537	{
1037	ev_clear_pending ((W)w);	1538	ev_clear_pending (EV_A_ (W)w);
1038	if (!ev_is_active (w))	1539	if (!ev_is_active (w))
1039	return;	1540	return;
1040		1541
1041	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1542	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1042	ev_stop ((W)w);	1543	ev_stop (EV_A_ (W)w);
1043		1544
1044	if (!signals [w->signum - 1].head)	1545	if (!signals [w->signum - 1].head)
1045	signal (w->signum, SIG_DFL);	1546	signal (w->signum, SIG_DFL);
1046	}	1547	}
1047		1548
1048	void	1549	void
1049	ev_idle_start (struct ev_idle *w)	1550	ev_child_start (EV_P_ struct ev_child *w)
1050	{	1551	{
		1552	#if EV_MULTIPLICITY
		1553	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1554	#endif
1051	if (ev_is_active (w))	1555	if (ev_is_active (w))
1052	return;	1556	return;
1053		1557
1054	ev_start ((W)w, ++idlecnt);
1055	array_needsize (idles, idlemax, idlecnt, );
1056	idles [idlecnt - 1] = w;
1057	}
1058
1059	void
1060	ev_idle_stop (struct ev_idle *w)
1061	{
1062	ev_clear_pending ((W)w);
1063	if (ev_is_active (w))
1064	return;
1065
1066	idles [w->active - 1] = idles [--idlecnt];
1067	ev_stop ((W)w);
1068	}
1069
1070	void
1071	ev_prepare_start (struct ev_prepare *w)
1072	{
1073	if (ev_is_active (w))
1074	return;
1075
1076	ev_start ((W)w, ++preparecnt);
1077	array_needsize (prepares, preparemax, preparecnt, );
1078	prepares [preparecnt - 1] = w;
1079	}
1080
1081	void
1082	ev_prepare_stop (struct ev_prepare *w)
1083	{
1084	ev_clear_pending ((W)w);
1085	if (ev_is_active (w))
1086	return;
1087
1088	prepares [w->active - 1] = prepares [--preparecnt];
1089	ev_stop ((W)w);
1090	}
1091
1092	void
1093	ev_check_start (struct ev_check *w)
1094	{
1095	if (ev_is_active (w))
1096	return;
1097
1098	ev_start ((W)w, ++checkcnt);
1099	array_needsize (checks, checkmax, checkcnt, );
1100	checks [checkcnt - 1] = w;
1101	}
1102
1103	void
1104	ev_check_stop (struct ev_check *w)
1105	{
1106	ev_clear_pending ((W)w);
1107	if (ev_is_active (w))
1108	return;
1109
1110	checks [w->active - 1] = checks [--checkcnt];
1111	ev_stop ((W)w);
1112	}
1113
1114	void
1115	ev_child_start (struct ev_child *w)
1116	{
1117	if (ev_is_active (w))
1118	return;
1119
1120	ev_start ((W)w, 1);	1558	ev_start (EV_A_ (W)w, 1);
1121	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1559	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	}	1560	}
1123		1561
1124	void	1562	void
1125	ev_child_stop (struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1126	{	1564	{
1127	ev_clear_pending ((W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1128	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1129	return;	1567	return;
1130		1568
1131	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1132	ev_stop ((W)w);	1570	ev_stop (EV_A_ (W)w);
1133	}	1571	}
1134		1572
1135	/*****************************************************************************/	1573	/*****************************************************************************/
1136		1574
1137	struct ev_once	1575	struct ev_once
…		…
1141	void (cb)(int revents, void arg);	1579	void (cb)(int revents, void arg);
1142	void *arg;	1580	void *arg;
1143	};	1581	};
1144		1582
1145	static void	1583	static void
1146	once_cb (struct ev_once *once, int revents)	1584	once_cb (EV_P_ struct ev_once *once, int revents)
1147	{	1585	{
1148	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1149	void *arg = once->arg;	1587	void *arg = once->arg;
1150		1588
1151	ev_io_stop (&once->io);	1589	ev_io_stop (EV_A_ &once->io);
1152	ev_timer_stop (&once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1153	free (once);	1591	ev_free (once);
1154		1592
1155	cb (revents, arg);	1593	cb (revents, arg);
1156	}	1594	}
1157		1595
1158	static void	1596	static void
1159	once_cb_io (struct ev_io *w, int revents)	1597	once_cb_io (EV_P_ struct ev_io *w, int revents)
1160	{	1598	{
1161	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1599	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1162	}	1600	}
1163		1601
1164	static void	1602	static void
1165	once_cb_to (struct ev_timer *w, int revents)	1603	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1166	{	1604	{
1167	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1605	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1168	}	1606	}
1169		1607
1170	void	1608	void
1171	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1609	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1172	{	1610	{
1173	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1174		1612
1175	if (!once)	1613	if (!once)
1176	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1177	else	1615	else
1178	{	1616	{
1179	once->cb = cb;	1617	once->cb = cb;
1180	once->arg = arg;	1618	once->arg = arg;
1181		1619
1182	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1183	if (fd >= 0)	1621	if (fd >= 0)
1184	{	1622	{
1185	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1186	ev_io_start (&once->io);	1624	ev_io_start (EV_A_ &once->io);
1187	}	1625	}
1188		1626
1189	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1190	if (timeout >= 0.)	1628	if (timeout >= 0.)
1191	{	1629	{
1192	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1193	ev_timer_start (&once->to);	1631	ev_timer_start (EV_A_ &once->to);
1194	}	1632	}
1195	}	1633	}
1196	}	1634	}
1197		1635
1198	/*****************************************************************************/	1636	#ifdef __cplusplus
1199
1200	#if 0
1201
1202	struct ev_io wio;
1203
1204	static void
1205	sin_cb (struct ev_io *w, int revents)
1206	{
1207	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1208	}	1637	}
1209
1210	static void
1211	ocb (struct ev_timer *w, int revents)
1212	{
1213	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1214	ev_timer_stop (w);
1215	ev_timer_start (w);
1216	}
1217
1218	static void
1219	scb (struct ev_signal *w, int revents)
1220	{
1221	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1222	ev_io_stop (&wio);
1223	ev_io_start (&wio);
1224	}
1225
1226	static void
1227	gcb (struct ev_signal *w, int revents)
1228	{
1229	fprintf (stderr, "generic %x\n", revents);
1230
1231	}
1232
1233	int main (void)
1234	{
1235	ev_init (0);
1236
1237	ev_io_init (&wio, sin_cb, 0, EV_READ);
1238	ev_io_start (&wio);
1239
1240	struct ev_timer t[10000];
1241
1242	#if 0
1243	int i;
1244	for (i = 0; i < 10000; ++i)
1245	{
1246	struct ev_timer *w = t + i;
1247	ev_watcher_init (w, ocb, i);
1248	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1249	ev_timer_start (w);
1250	if (drand48 () < 0.5)
1251	ev_timer_stop (w);
1252	}
1253	#endif	1638	#endif
1254		1639
1255	struct ev_timer t1;
1256	ev_timer_init (&t1, ocb, 5, 10);
1257	ev_timer_start (&t1);
1258
1259	struct ev_signal sig;
1260	ev_signal_init (&sig, scb, SIGQUIT);
1261	ev_signal_start (&sig);
1262
1263	struct ev_check cw;
1264	ev_check_init (&cw, gcb);
1265	ev_check_start (&cw);
1266
1267	struct ev_idle iw;
1268	ev_idle_init (&iw, gcb);
1269	ev_idle_start (&iw);
1270
1271	ev_loop (0);
1272
1273	return 0;
1274	}
1275
1276	#endif
1277
1278
1279
1280

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Comparing libev/ev.c (file contents): Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs. Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC