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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 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>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	76	#include <time.h>
		77
		78	#include <signal.h>
		79
		80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.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
		89	# endif
		90	#endif
50		91
51	/**/	92	/**/
52		93
53	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
55	#endif	96	#endif
56		97
57	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
59	#endif	101	#endif
60		102
61	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
62	# 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
63	#endif	109	#endif
64		110
65	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
67	#endif	113	#endif
…		…
82	#endif	128	#endif
83		129
84	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
85	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
86	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
87	#endif	137	#endif
88		138
89	/**/	139	/**/
90		140
91	#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) */
92	#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) */
93	#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 */
94	/#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 */
95		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
96	#include "ev.h"	149	# include "ev.h"
		150	#endif
97		151
98	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
99	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
100	# define inline inline	154	# define inline inline
101	#else	155	#else
…		…
107	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
108		162
109	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	163	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
110	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	164	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
111		165
		166	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		167
112	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
115		171
116	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
117	ev_tstamp ev_now;	261	ev_tstamp ev_rt_now;
118	int ev_method;	262	#define VAR(name,decl) static decl;
		263	#include "ev_vars.h"
		264	#undef VAR
119		265
120	static int have_monotonic; /* runtime */	266	static int default_loop;
121		267
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	268	#endif
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125		269
126	/*****************************************************************************/	270	/*****************************************************************************/
127		271
128	ev_tstamp	272	ev_tstamp
129	ev_time (void)	273	ev_time (void)
…		…
137	gettimeofday (&tv, 0);	281	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	282	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	283	#endif
140	}	284	}
141		285
142	static ev_tstamp	286	inline ev_tstamp
143	get_clock (void)	287	get_clock (void)
144	{	288	{
145	#if EV_USE_MONOTONIC	289	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	290	if (expect_true (have_monotonic))
147	{	291	{
…		…
152	#endif	296	#endif
153		297
154	return ev_time ();	298	return ev_time ();
155	}	299	}
156		300
		301	#if EV_MULTIPLICITY
		302	ev_tstamp
		303	ev_now (EV_P)
		304	{
		305	return ev_rt_now;
		306	}
		307	#endif
		308
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
158		310
159	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
160	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
161	{ \	313	{ \
162	int newcnt = cur; \	314	int newcnt = cur; \
163	do \	315	do \
164	{ \	316	{ \
165	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
166	} \	318	} \
167	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
168	\	320	\
169	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
170	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
171	cur = newcnt; \	323	cur = newcnt; \
172	}	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;
173		336
174	/*****************************************************************************/	337	/*****************************************************************************/
175
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185		338
186	static void	339	static void
187	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
188	{	341	{
189	while (count--)	342	while (count--)
…		…
194		347
195	++base;	348	++base;
196	}	349	}
197	}	350	}
198		351
199	typedef struct	352	void
		353	ev_feed_event (EV_P_ void *w, int revents)
200	{	354	{
201	W w;	355	W w_ = (W)w;
202	int events;
203	} ANPENDING;
204		356
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void
209	event (W w, int events)
210	{
211	if (w->pending)	357	if (w_->pending)
212	{	358	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
214	return;	360	return;
215	}	361	}
216		362
217	w->pending = ++pendingcnt [ABSPRI (w)];	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
218	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));
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
221	}	367	}
222		368
223	static void	369	static void
224	queue_events (W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	371	{
226	int i;	372	int i;
227		373
228	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
230	}	376	}
231		377
232	static void	378	inline void
233	fd_event (int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
234	{	380	{
235	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	382	struct ev_io *w;
237		383
238	for (w = anfd->head; w; w = w->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	385	{
240	int ev = w->events & events;	386	int ev = w->events & revents;
241		387
242	if (ev)	388	if (ev)
243	event ((W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
244	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
245	}	397	}
246		398
247	/*****************************************************************************/	399	/*****************************************************************************/
248		400
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	401	static void
253	fd_reify (void)	402	fd_reify (EV_P)
254	{	403	{
255	int i;	404	int i;
256		405
257	for (i = 0; i < fdchangecnt; ++i)	406	for (i = 0; i < fdchangecnt; ++i)
258	{	407	{
…		…
260	ANFD *anfd = anfds + fd;	409	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	410	struct ev_io *w;
262		411
263	int events = 0;	412	int events = 0;
264		413
265	for (w = anfd->head; w; w = w->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	415	events \|= w->events;
267		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
268	anfd->reify = 0;	426	anfd->reify = 0;
269		427
270	if (anfd->events != events)
271	{
272	method_modify (fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	429	anfd->events = events;
274	}
275	}	430	}
276		431
277	fdchangecnt = 0;	432	fdchangecnt = 0;
278	}	433	}
279		434
280	static void	435	static void
281	fd_change (int fd)	436	fd_change (EV_P_ int fd)
282	{	437	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
284	return;	439	return;
285		440
286	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
287		442
288	++fdchangecnt;	443	++fdchangecnt;
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
290	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
291	}	446	}
292		447
293	static void	448	static void
294	fd_kill (int fd)	449	fd_kill (EV_P_ int fd)
295	{	450	{
296	struct ev_io *w;	451	struct ev_io *w;
297		452
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
300	{	454	{
301	ev_io_stop (w);	455	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	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
304	}	468	}
305		469
306	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
307	static void	471	static void
308	fd_ebadf (void)	472	fd_ebadf (EV_P)
309	{	473	{
310	int fd;	474	int fd;
311		475
312	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	477	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
315	fd_kill (fd);	479	fd_kill (EV_A_ fd);
316	}	480	}
317		481
318	/* 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 */
319	static void	483	static void
320	fd_enomem (void)	484	fd_enomem (EV_P)
321	{	485	{
322	int fd = anfdmax;	486	int fd;
323		487
324	while (fd--)	488	for (fd = anfdmax; fd--; )
325	if (anfds [fd].events)	489	if (anfds [fd].events)
326	{	490	{
327	close (fd);
328	fd_kill (fd);	491	fd_kill (EV_A_ fd);
329	return;	492	return;
330	}	493	}
331	}	494	}
332		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
333	/*****************************************************************************/	511	/*****************************************************************************/
334		512
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340
341	static void	513	static void
342	upheap (WT *timers, int k)	514	upheap (WT *heap, int k)
343	{	515	{
344	WT w = timers [k];	516	WT w = heap [k];
345		517
346	while (k && timers [k >> 1]->at > w->at)	518	while (k && heap [k >> 1]->at > w->at)
347	{	519	{
348	timers [k] = timers [k >> 1];	520	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
350	k >>= 1;	522	k >>= 1;
351	}	523	}
352		524
353	timers [k] = w;	525	heap [k] = w;
354	timers [k]->active = k + 1;	526	((W)heap [k])->active = k + 1;
355		527
356	}	528	}
357		529
358	static void	530	static void
359	downheap (WT *timers, int N, int k)	531	downheap (WT *heap, int N, int k)
360	{	532	{
361	WT w = timers [k];	533	WT w = heap [k];
362		534
363	while (k < (N >> 1))	535	while (k < (N >> 1))
364	{	536	{
365	int j = k << 1;	537	int j = k << 1;
366		538
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	539	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	540	++j;
369		541
370	if (w->at <= timers [j]->at)	542	if (w->at <= heap [j]->at)
371	break;	543	break;
372		544
373	timers [k] = timers [j];	545	heap [k] = heap [j];
374	timers [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
375	k = j;	547	k = j;
376	}	548	}
377		549
378	timers [k] = w;	550	heap [k] = w;
379	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);
380	}	559	}
381		560
382	/*****************************************************************************/	561	/*****************************************************************************/
383		562
384	typedef struct	563	typedef struct
385	{	564	{
386	struct ev_signal *head;	565	WL head;
387	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
388	} ANSIG;	567	} ANSIG;
389		568
390	static ANSIG *signals;	569	static ANSIG *signals;
391	static int signalmax;	570	static int signalmax;
…		…
407	}	586	}
408		587
409	static void	588	static void
410	sighandler (int signum)	589	sighandler (int signum)
411	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
412	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
413		596
414	if (!gotsig)	597	if (!gotsig)
415	{	598	{
		599	int old_errno = errno;
416	gotsig = 1;	600	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
		602	errno = old_errno;
418	}	603	}
419	}	604	}
420		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
421	static void	626	static void
422	sigcb (struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	628	{
424	struct ev_signal *w;
425	int signum;	629	int signum;
426		630
427	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	632	gotsig = 0;
429		633
430	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
431	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
432	{	636	ev_feed_signal_event (EV_A_ signum + 1);
433	signals [signum].gotsig = 0;
434
435	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);
437	}
438	}	637	}
439		638
440	static void	639	inline void
441	siginit (void)	640	fd_intern (int fd)
442	{	641	{
		642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	646	fcntl (fd, F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445
446	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	647	fcntl (fd, F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	648	#endif
		649	}
		650
		651	static void
		652	siginit (EV_P)
		653	{
		654	fd_intern (sigpipe [0]);
		655	fd_intern (sigpipe [1]);
449		656
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	658	ev_io_start (EV_A_ &sigev);
		659	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	660	}
453		661
454	/*****************************************************************************/	662	/*****************************************************************************/
455		663
456	static struct ev_idle **idles;
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
468	static struct ev_signal childev;	668	static struct ev_signal childev;
469		669
470	#ifndef WCONTINUED	670	#ifndef WCONTINUED
471	# define WCONTINUED 0	671	# define WCONTINUED 0
472	#endif	672	#endif
473		673
474	static void	674	static void
475	childcb (struct ev_signal *sw, int revents)	675	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	676	{
477	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	{
478	int pid, status;	692	int pid, status;
479		693
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	695	{
482	if (w->pid == pid \|\| !w->pid)	696	/* make sure we are called again until all childs have been reaped */
483	{	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	698
485	event ((W)w, EV_CHILD);	699	child_reap (EV_A_ sw, pid, pid, status);
486	}	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		701	}
487	}	702	}
		703
		704	#endif
488		705
489	/*****************************************************************************/	706	/*****************************************************************************/
490		707
491	#if EV_USE_KQUEUE	708	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	709	# include "ev_kqueue.c"
…		…
511	ev_version_minor (void)	728	ev_version_minor (void)
512	{	729	{
513	return EV_VERSION_MINOR;	730	return EV_VERSION_MINOR;
514	}	731	}
515		732
516	/* 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 */
517	static int	734	static int
518	enable_secure ()	735	enable_secure (void)
519	{	736	{
		737	#ifdef _WIN32
		738	return 0;
		739	#else
520	return getuid () != geteuid ()	740	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
		742	#endif
522	}	743	}
523		744
524	int ev_init (int methods)	745	int
		746	ev_method (EV_P)
525	{	747	{
		748	return method;
		749	}
		750
		751	static void
		752	loop_init (EV_P_ int methods)
		753	{
526	if (!ev_method)	754	if (!method)
527	{	755	{
528	#if EV_USE_MONOTONIC	756	#if EV_USE_MONOTONIC
529	{	757	{
530	struct timespec ts;	758	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	760	have_monotonic = 1;
533	}	761	}
534	#endif	762	#endif
535		763
536	ev_now = ev_time ();	764	ev_rt_now = ev_time ();
537	now = get_clock ();	765	mn_now = get_clock ();
538	now_floor = now;	766	now_floor = mn_now;
539	diff = ev_now - now;	767	rtmn_diff = ev_rt_now - mn_now;
540
541	if (pipe (sigpipe))
542	return 0;
543		768
544	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
547	else	772	else
548	methods = EVMETHOD_ANY;	773	methods = EVMETHOD_ANY;
549		774
550	ev_method = 0;	775	method = 0;
551	#if EV_USE_KQUEUE	776	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	778	#endif
554	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	781	#endif
557	#if EV_USE_POLL	782	#if EV_USE_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	784	#endif
560	#if EV_USE_SELECT	785	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	787	#endif
563		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
564	if (ev_method)	908	if (ev_method (EV_A))
565	{	909	{
566	ev_watcher_init (&sigev, sigcb);
567	siginit ();	910	siginit (EV_A);
568		911
		912	#ifndef _WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
		914	ev_set_priority (&childev, EV_MAXPRI);
570	ev_signal_start (&childev);	915	ev_signal_start (EV_A_ &childev);
		916	ev_unref (EV_A); /* child watcher should not keep loop alive */
		917	#endif
571	}	918	}
		919	else
		920	default_loop = 0;
572	}	921	}
573		922
574	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;
575	}	956	}
576		957
577	/*****************************************************************************/	958	/*****************************************************************************/
578		959
579	void
580	ev_fork_prepare (void)
581	{
582	/* nop */
583	}
584
585	void
586	ev_fork_parent (void)
587	{
588	/* nop */
589	}
590
591	void
592	ev_fork_child (void)
593	{
594	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();
597	#endif
598
599	ev_io_stop (&sigev);
600	close (sigpipe [0]);
601	close (sigpipe [1]);
602	pipe (sigpipe);
603	siginit ();
604	}
605
606	/*****************************************************************************/
607
608	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
609	call_pending (void)	973	call_pending (EV_P)
610	{	974	{
611	int pri;	975	int pri;
612		976
613	for (pri = NUMPRI; pri--; )	977	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	978	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		981
618	if (p->w)	982	if (p->w)
619	{	983	{
620	p->w->pending = 0;	984	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
622	}	986	}
623	}	987	}
624	}	988	}
625		989
626	static void	990	static void
627	timers_reify (void)	991	timers_reify (EV_P)
628	{	992	{
629	while (timercnt && timers [0]->at <= now)	993	while (timercnt && ((WT)timers [0])->at <= mn_now)
630	{	994	{
631	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)));
632		998
633	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
634	if (w->repeat)	1000	if (w->repeat)
635	{	1001	{
636	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
637	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
638	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
639	}	1009	}
640	else	1010	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		1012
643	event ((W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
644	}	1014	}
645	}	1015	}
646		1016
		1017	#if EV_PERIODICS
647	static void	1018	static void
648	periodics_reify (void)	1019	periodics_reify (EV_P)
649	{	1020	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
651	{	1022	{
652	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
653		1024
		1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1026
654	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
655	if (w->interval)	1028	if (w->reschedule_cb)
656	{	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	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
660	}	1040	}
661	else	1041	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		1043
664	event ((W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
665	}	1045	}
666	}	1046	}
667		1047
668	static void	1048	static void
669	periodics_reschedule (ev_tstamp diff)	1049	periodics_reschedule (EV_P)
670	{	1050	{
671	int i;	1051	int i;
672		1052
673	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
675	{	1055	{
676	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
677		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
678	if (w->interval)	1060	else if (w->interval)
679	{
680	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;
681
682	if (fabs (diff) >= 1e-4)
683	{
684	ev_periodic_stop (w);
685	ev_periodic_start (w);
686
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}
689	}
690	}	1062	}
691	}
692		1063
693	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
694	time_update_monotonic (void)	1071	time_update_monotonic (EV_P)
695	{	1072	{
696	now = get_clock ();	1073	mn_now = get_clock ();
697		1074
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	1076	{
700	ev_now = now + diff;	1077	ev_rt_now = rtmn_diff + mn_now;
701	return 0;	1078	return 0;
702	}	1079	}
703	else	1080	else
704	{	1081	{
705	now_floor = now;	1082	now_floor = mn_now;
706	ev_now = ev_time ();	1083	ev_rt_now = ev_time ();
707	return 1;	1084	return 1;
708	}	1085	}
709	}	1086	}
710		1087
711	static void	1088	static void
712	time_update (void)	1089	time_update (EV_P)
713	{	1090	{
714	int i;	1091	int i;
715		1092
716	#if EV_USE_MONOTONIC	1093	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1094	if (expect_true (have_monotonic))
718	{	1095	{
719	if (time_update_monotonic ())	1096	if (time_update_monotonic (EV_A))
720	{	1097	{
721	ev_tstamp odiff = diff;	1098	ev_tstamp odiff = rtmn_diff;
722		1099
723	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 */
724	{	1101	{
725	diff = ev_now - now;	1102	rtmn_diff = ev_rt_now - mn_now;
726		1103
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	1105	return; /* all is well */
729		1106
730	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
731	now = get_clock ();	1108	mn_now = get_clock ();
732	now_floor = now;	1109	now_floor = mn_now;
733	}	1110	}
734		1111
		1112	# if EV_PERIODICS
735	periodics_reschedule (diff - odiff);	1113	periodics_reschedule (EV_A);
		1114	# endif
736	/* 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) */
737	}	1117	}
738	}	1118	}
739	else	1119	else
740	#endif	1120	#endif
741	{	1121	{
742	ev_now = ev_time ();	1122	ev_rt_now = ev_time ();
743		1123
744	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))
745	{	1125	{
		1126	#if EV_PERIODICS
746	periodics_reschedule (ev_now - now);	1127	periodics_reschedule (EV_A);
		1128	#endif
747		1129
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
751	}	1133	}
752		1134
753	now = ev_now;	1135	mn_now = ev_rt_now;
754	}	1136	}
755	}	1137	}
756		1138
757	int ev_loop_done;	1139	void
		1140	ev_ref (EV_P)
		1141	{
		1142	++activecnt;
		1143	}
758		1144
		1145	void
		1146	ev_unref (EV_P)
		1147	{
		1148	--activecnt;
		1149	}
		1150
		1151	static int loop_done;
		1152
		1153	void
759	void ev_loop (int flags)	1154	ev_loop (EV_P_ int flags)
760	{	1155	{
761	double block;	1156	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1157	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		1158
764	do	1159	do
765	{	1160	{
766	/* queue check watchers (and execute them) */	1161	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	1162	if (expect_false (preparecnt))
768	{	1163	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	1165	call_pending (EV_A);
771	}	1166	}
772		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
773	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
774	fd_reify ();	1173	fd_reify (EV_A);
775		1174
776	/* calculate blocking time */	1175	/* calculate blocking time */
777		1176
778	/* 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
779	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
782	time_update_monotonic ();	1181	time_update_monotonic (EV_A);
783	else	1182	else
784	#endif	1183	#endif
785	{	1184	{
786	ev_now = ev_time ();	1185	ev_rt_now = ev_time ();
787	now = ev_now;	1186	mn_now = ev_rt_now;
788	}	1187	}
789		1188
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	1190	block = 0.;
792	else	1191	else
793	{	1192	{
794	block = MAX_BLOCKTIME;	1193	block = MAX_BLOCKTIME;
795		1194
796	if (timercnt)	1195	if (timercnt)
797	{	1196	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
799	if (block > to) block = to;	1198	if (block > to) block = to;
800	}	1199	}
801		1200
		1201	#if EV_PERIODICS
802	if (periodiccnt)	1202	if (periodiccnt)
803	{	1203	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
805	if (block > to) block = to;	1205	if (block > to) block = to;
806	}	1206	}
		1207	#endif
807		1208
808	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
809	}	1210	}
810		1211
811	method_poll (block);	1212	method_poll (EV_A_ block);
812		1213
813	/* update ev_now, do magic */	1214	/* update ev_rt_now, do magic */
814	time_update ();	1215	time_update (EV_A);
815		1216
816	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
818	periodics_reify (); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
819		1222
820	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		1226
824	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
825	if (checkcnt)	1228	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		1230
828	call_pending ();	1231	call_pending (EV_A);
829	}	1232	}
830	while (!ev_loop_done);	1233	while (activecnt && !loop_done);
831		1234
832	if (ev_loop_done != 2)	1235	if (loop_done != 2)
833	ev_loop_done = 0;	1236	loop_done = 0;
		1237	}
		1238
		1239	void
		1240	ev_unloop (EV_P_ int how)
		1241	{
		1242	loop_done = how;
834	}	1243	}
835		1244
836	/*****************************************************************************/	1245	/*****************************************************************************/
837		1246
838	static void	1247	inline void
839	wlist_add (WL *head, WL elem)	1248	wlist_add (WL *head, WL elem)
840	{	1249	{
841	elem->next = *head;	1250	elem->next = *head;
842	*head = elem;	1251	*head = elem;
843	}	1252	}
844		1253
845	static void	1254	inline void
846	wlist_del (WL *head, WL elem)	1255	wlist_del (WL *head, WL elem)
847	{	1256	{
848	while (*head)	1257	while (*head)
849	{	1258	{
850	if (*head == elem)	1259	if (*head == elem)
…		…
855		1264
856	head = &(*head)->next;	1265	head = &(*head)->next;
857	}	1266	}
858	}	1267	}
859		1268
860	static void	1269	inline void
861	ev_clear_pending (W w)	1270	ev_clear_pending (EV_P_ W w)
862	{	1271	{
863	if (w->pending)	1272	if (w->pending)
864	{	1273	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1274	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	1275	w->pending = 0;
867	}	1276	}
868	}	1277	}
869		1278
870	static void	1279	inline void
871	ev_start (W w, int active)	1280	ev_start (EV_P_ W w, int active)
872	{	1281	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1282	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1283	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		1284
876	w->active = active;	1285	w->active = active;
		1286	ev_ref (EV_A);
877	}	1287	}
878		1288
879	static void	1289	inline void
880	ev_stop (W w)	1290	ev_stop (EV_P_ W w)
881	{	1291	{
		1292	ev_unref (EV_A);
882	w->active = 0;	1293	w->active = 0;
883	}	1294	}
884		1295
885	/*****************************************************************************/	1296	/*****************************************************************************/
886		1297
887	void	1298	void
888	ev_io_start (struct ev_io *w)	1299	ev_io_start (EV_P_ struct ev_io *w)
889	{	1300	{
890	int fd = w->fd;	1301	int fd = w->fd;
891		1302
892	if (ev_is_active (w))	1303	if (ev_is_active (w))
893	return;	1304	return;
894		1305
895	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
896		1307
897	ev_start ((W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		1311
901	fd_change (fd);	1312	fd_change (EV_A_ fd);
902	}	1313	}
903		1314
904	void	1315	void
905	ev_io_stop (struct ev_io *w)	1316	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1317	{
907	ev_clear_pending ((W)w);	1318	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
909	return;	1320	return;
910		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
913		1326
914	fd_change (w->fd);	1327	fd_change (EV_A_ w->fd);
915	}	1328	}
916		1329
917	void	1330	void
918	ev_timer_start (struct ev_timer *w)	1331	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1332	{
920	if (ev_is_active (w))	1333	if (ev_is_active (w))
921	return;	1334	return;
922		1335
923	w->at += now;	1336	((WT)w)->at += mn_now;
924		1337
925	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.));
926		1339
927	ev_start ((W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
929	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
931	}
932		1344
		1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1346	}
		1347
933	void	1348	void
934	ev_timer_stop (struct ev_timer *w)	1349	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1350	{
936	ev_clear_pending ((W)w);	1351	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1352	if (!ev_is_active (w))
938	return;	1353	return;
939		1354
		1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1356
940	if (w->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
941	{	1358	{
942	timers [w->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
943	downheap ((WT *)timers, timercnt, w->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
944	}	1361	}
945		1362
946	w->at = w->repeat;	1363	((WT)w)->at -= mn_now;
947		1364
948	ev_stop ((W)w);	1365	ev_stop (EV_A_ (W)w);
949	}	1366	}
950		1367
951	void	1368	void
952	ev_timer_again (struct ev_timer *w)	1369	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1370	{
954	if (ev_is_active (w))	1371	if (ev_is_active (w))
955	{	1372	{
956	if (w->repeat)	1373	if (w->repeat)
957	{	1374	{
958	w->at = now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
960	}	1377	}
961	else	1378	else
962	ev_timer_stop (w);	1379	ev_timer_stop (EV_A_ w);
963	}	1380	}
964	else if (w->repeat)	1381	else if (w->repeat)
965	ev_timer_start (w);	1382	ev_timer_start (EV_A_ w);
966	}	1383	}
967		1384
		1385	#if EV_PERIODICS
968	void	1386	void
969	ev_periodic_start (struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1388	{
971	if (ev_is_active (w))	1389	if (ev_is_active (w))
972	return;	1390	return;
973		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
974	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.));
975
976	/* 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 */
977	if (w->interval)
978	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	}
979		1400
980	ev_start ((W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
982	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
984	}
985		1405
		1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1407	}
		1408
986	void	1409	void
987	ev_periodic_stop (struct ev_periodic *w)	1410	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1411	{
989	ev_clear_pending ((W)w);	1412	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1413	if (!ev_is_active (w))
991	return;	1414	return;
992		1415
		1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1417
993	if (w->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
994	{	1419	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
997	}	1422	}
998		1423
999	ev_stop ((W)w);	1424	ev_stop (EV_A_ (W)w);
1000	}	1425	}
1001		1426
1002	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
1003	ev_signal_start (struct ev_signal *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
1004	{	1438	{
1005	if (ev_is_active (w))	1439	if (ev_is_active (w))
1006	return;	1440	return;
1007		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
1008	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));
1009		1516
1010	ev_start ((W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1520
1014	if (!w->next)	1521	if (!((WL)w)->next)
1015	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
1016	struct sigaction sa;	1526	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
1021	}	1532	}
1022	}	1533	}
1023		1534
1024	void	1535	void
1025	ev_signal_stop (struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1537	{
1027	ev_clear_pending ((W)w);	1538	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1539	if (!ev_is_active (w))
1029	return;	1540	return;
1030		1541
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1542	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1543	ev_stop (EV_A_ (W)w);
1033		1544
1034	if (!signals [w->signum - 1].head)	1545	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1546	signal (w->signum, SIG_DFL);
1036	}	1547	}
1037		1548
1038	void	1549	void
1039	ev_idle_start (struct ev_idle *w)	1550	ev_child_start (EV_P_ struct ev_child *w)
1040	{	1551	{
		1552	#if EV_MULTIPLICITY
		1553	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1554	#endif
1041	if (ev_is_active (w))	1555	if (ev_is_active (w))
1042	return;	1556	return;
1043		1557
1044	ev_start ((W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;
1047	}
1048
1049	void
1050	ev_idle_stop (struct ev_idle *w)
1051	{
1052	ev_clear_pending ((W)w);
1053	if (ev_is_active (w))
1054	return;
1055
1056	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);
1058	}
1059
1060	void
1061	ev_prepare_start (struct ev_prepare *w)
1062	{
1063	if (ev_is_active (w))
1064	return;
1065
1066	ev_start ((W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;
1069	}
1070
1071	void
1072	ev_prepare_stop (struct ev_prepare *w)
1073	{
1074	ev_clear_pending ((W)w);
1075	if (ev_is_active (w))
1076	return;
1077
1078	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);
1080	}
1081
1082	void
1083	ev_check_start (struct ev_check *w)
1084	{
1085	if (ev_is_active (w))
1086	return;
1087
1088	ev_start ((W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;
1091	}
1092
1093	void
1094	ev_check_stop (struct ev_check *w)
1095	{
1096	ev_clear_pending ((W)w);
1097	if (ev_is_active (w))
1098	return;
1099
1100	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);
1102	}
1103
1104	void
1105	ev_child_start (struct ev_child *w)
1106	{
1107	if (ev_is_active (w))
1108	return;
1109
1110	ev_start ((W)w, 1);	1558	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1559	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1560	}
1113		1561
1114	void	1562	void
1115	ev_child_stop (struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1564	{
1117	ev_clear_pending ((W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1119	return;	1567	return;
1120		1568
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1570	ev_stop (EV_A_ (W)w);
1123	}	1571	}
1124		1572
1125	/*****************************************************************************/	1573	/*****************************************************************************/
1126		1574
1127	struct ev_once	1575	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1579	void (cb)(int revents, void arg);
1132	void *arg;	1580	void *arg;
1133	};	1581	};
1134		1582
1135	static void	1583	static void
1136	once_cb (struct ev_once *once, int revents)	1584	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1585	{
1138	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1587	void *arg = once->arg;
1140		1588
1141	ev_io_stop (&once->io);	1589	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1591	ev_free (once);
1144		1592
1145	cb (revents, arg);	1593	cb (revents, arg);
1146	}	1594	}
1147		1595
1148	static void	1596	static void
1149	once_cb_io (struct ev_io *w, int revents)	1597	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1598	{
1151	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);
1152	}	1600	}
1153		1601
1154	static void	1602	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1603	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1604	{
1157	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);
1158	}	1606	}
1159		1607
1160	void	1608	void
1161	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)
1162	{	1610	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1164		1612
1165	if (!once)	1613	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1167	else	1615	else
1168	{	1616	{
1169	once->cb = cb;	1617	once->cb = cb;
1170	once->arg = arg;	1618	once->arg = arg;
1171		1619
1172	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1621	if (fd >= 0)
1174	{	1622	{
1175	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1624	ev_io_start (EV_A_ &once->io);
1177	}	1625	}
1178		1626
1179	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1628	if (timeout >= 0.)
1181	{	1629	{
1182	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1631	ev_timer_start (EV_A_ &once->to);
1184	}	1632	}
1185	}	1633	}
1186	}	1634	}
1187		1635
1188	/*****************************************************************************/	1636	#ifdef __cplusplus
1189
1190	#if 0
1191
1192	struct ev_io wio;
1193
1194	static void
1195	sin_cb (struct ev_io *w, int revents)
1196	{
1197	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1198	}	1637	}
1199
1200	static void
1201	ocb (struct ev_timer *w, int revents)
1202	{
1203	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1204	ev_timer_stop (w);
1205	ev_timer_start (w);
1206	}
1207
1208	static void
1209	scb (struct ev_signal *w, int revents)
1210	{
1211	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1212	ev_io_stop (&wio);
1213	ev_io_start (&wio);
1214	}
1215
1216	static void
1217	gcb (struct ev_signal *w, int revents)
1218	{
1219	fprintf (stderr, "generic %x\n", revents);
1220
1221	}
1222
1223	int main (void)
1224	{
1225	ev_init (0);
1226
1227	ev_io_init (&wio, sin_cb, 0, EV_READ);
1228	ev_io_start (&wio);
1229
1230	struct ev_timer t[10000];
1231
1232	#if 0
1233	int i;
1234	for (i = 0; i < 10000; ++i)
1235	{
1236	struct ev_timer *w = t + i;
1237	ev_watcher_init (w, ocb, i);
1238	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1239	ev_timer_start (w);
1240	if (drand48 () < 0.5)
1241	ev_timer_stop (w);
1242	}
1243	#endif	1638	#endif
1244		1639
1245	struct ev_timer t1;
1246	ev_timer_init (&t1, ocb, 5, 10);
1247	ev_timer_start (&t1);
1248
1249	struct ev_signal sig;
1250	ev_signal_init (&sig, scb, SIGQUIT);
1251	ev_signal_start (&sig);
1252
1253	struct ev_check cw;
1254	ev_check_init (&cw, gcb);
1255	ev_check_start (&cw);
1256
1257	struct ev_idle iw;
1258	ev_idle_init (&iw, gcb);
1259	ev_idle_start (&iw);
1260
1261	ev_loop (0);
1262
1263	return 0;
1264	}
1265
1266	#endif
1267
1268
1269
1270

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 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 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC