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

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 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
		113	#endif
		114
		115	#ifndef EV_USE_KQUEUE
		116	# define EV_USE_KQUEUE 0
67	#endif	117	#endif
68		118
69	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
71	#endif	121	#endif
…		…
78	#endif	128	#endif
79		129
80	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
81	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
82	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
83	#endif	137	#endif
84		138
85	/**/	139	/**/
86		140
87	#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) */
88	#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) */
89	#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 */
90	/#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 */
91		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
92	#include "ev.h"	149	# include "ev.h"
		150	#endif
93		151
94	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	154	# define inline inline
97	#else	155	#else
…		…
100	#endif	158	#endif
101		159
102	#define expect_false(expr) expect ((expr) != 0, 0)	160	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
104		162
		163	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		164	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		165
		166	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		167
105	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
108		171
109	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
110	ev_tstamp ev_now;	261	ev_tstamp ev_rt_now;
111	int ev_method;	262	#define VAR(name,decl) static decl;
		263	#include "ev_vars.h"
		264	#undef VAR
112		265
113	static int have_monotonic; /* runtime */	266	static int default_loop;
114		267
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	268	#endif
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118		269
119	/*****************************************************************************/	270	/*****************************************************************************/
120		271
121	ev_tstamp	272	ev_tstamp
122	ev_time (void)	273	ev_time (void)
…		…
130	gettimeofday (&tv, 0);	281	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	282	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	283	#endif
133	}	284	}
134		285
135	static ev_tstamp	286	inline ev_tstamp
136	get_clock (void)	287	get_clock (void)
137	{	288	{
138	#if EV_USE_MONOTONIC	289	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	290	if (expect_true (have_monotonic))
140	{	291	{
…		…
145	#endif	296	#endif
146		297
147	return ev_time ();	298	return ev_time ();
148	}	299	}
149		300
		301	#if EV_MULTIPLICITY
		302	ev_tstamp
		303	ev_now (EV_P)
		304	{
		305	return ev_rt_now;
		306	}
		307	#endif
		308
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
151		310
152	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
153	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
154	{ \	313	{ \
155	int newcnt = cur; \	314	int newcnt = cur; \
156	do \	315	do \
157	{ \	316	{ \
158	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
159	} \	318	} \
160	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
161	\	320	\
162	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
163	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
164	cur = newcnt; \	323	cur = newcnt; \
165	}	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;
166		336
167	/*****************************************************************************/	337	/*****************************************************************************/
168
169	typedef struct
170	{
171	struct ev_io *head;
172	unsigned char events;
173	unsigned char reify;
174	} ANFD;
175
176	static ANFD *anfds;
177	static int anfdmax;
178		338
179	static void	339	static void
180	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
181	{	341	{
182	while (count--)	342	while (count--)
…		…
187		347
188	++base;	348	++base;
189	}	349	}
190	}	350	}
191		351
192	typedef struct	352	void
		353	ev_feed_event (EV_P_ void *w, int revents)
193	{	354	{
194	W w;	355	W w_ = (W)w;
195	int events;
196	} ANPENDING;
197		356
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void
202	event (W w, int events)
203	{
204	if (w->pending)	357	if (w_->pending)
205	{	358	{
206	pendings [w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
207	return;	360	return;
208	}	361	}
209		362
210	w->pending = ++pendingcnt;	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	364	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
212	pendings [pendingcnt - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
213	pendings [pendingcnt - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
214	}	367	}
215		368
216	static void	369	static void
217	queue_events (W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	371	{
219	int i;	372	int i;
220		373
221	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
223	}	376	}
224		377
225	static void	378	inline void
226	fd_event (int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
227	{	380	{
228	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	382	struct ev_io *w;
230		383
231	for (w = anfd->head; w; w = w->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	385	{
233	int ev = w->events & events;	386	int ev = w->events & revents;
234		387
235	if (ev)	388	if (ev)
236	event ((W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
237	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
238	}	397	}
239		398
240	/*****************************************************************************/	399	/*****************************************************************************/
241		400
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	401	static void
246	fd_reify (void)	402	fd_reify (EV_P)
247	{	403	{
248	int i;	404	int i;
249		405
250	for (i = 0; i < fdchangecnt; ++i)	406	for (i = 0; i < fdchangecnt; ++i)
251	{	407	{
…		…
253	ANFD *anfd = anfds + fd;	409	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	410	struct ev_io *w;
255		411
256	int events = 0;	412	int events = 0;
257		413
258	for (w = anfd->head; w; w = w->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	415	events \|= w->events;
260		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
261	anfd->reify = 0;	426	anfd->reify = 0;
262		427
263	if (anfd->events != events)
264	{
265	method_modify (fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	429	anfd->events = events;
267	}
268	}	430	}
269		431
270	fdchangecnt = 0;	432	fdchangecnt = 0;
271	}	433	}
272		434
273	static void	435	static void
274	fd_change (int fd)	436	fd_change (EV_P_ int fd)
275	{	437	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
277	return;	439	return;
278		440
279	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
280		442
281	++fdchangecnt;	443	++fdchangecnt;
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
283	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
284	}	446	}
285		447
286	static void	448	static void
287	fd_kill (int fd)	449	fd_kill (EV_P_ int fd)
288	{	450	{
289	struct ev_io *w;	451	struct ev_io *w;
290		452
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
293	{	454	{
294	ev_io_stop (w);	455	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	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
297	}	468	}
298		469
299	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
300	static void	471	static void
301	fd_ebadf (void)	472	fd_ebadf (EV_P)
302	{	473	{
303	int fd;	474	int fd;
304		475
305	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	477	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
308	fd_kill (fd);	479	fd_kill (EV_A_ fd);
309	}	480	}
310		481
311	/* 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 */
312	static void	483	static void
313	fd_enomem (void)	484	fd_enomem (EV_P)
314	{	485	{
315	int fd = anfdmax;	486	int fd;
316		487
317	while (fd--)	488	for (fd = anfdmax; fd--; )
318	if (anfds [fd].events)	489	if (anfds [fd].events)
319	{	490	{
320	close (fd);
321	fd_kill (fd);	491	fd_kill (EV_A_ fd);
322	return;	492	return;
323	}	493	}
324	}	494	}
325		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
326	/*****************************************************************************/	511	/*****************************************************************************/
327		512
328	static struct ev_timer **timers;
329	static int timermax, timercnt;
330
331	static struct ev_periodic **periodics;
332	static int periodicmax, periodiccnt;
333
334	static void	513	static void
335	upheap (WT *timers, int k)	514	upheap (WT *heap, int k)
336	{	515	{
337	WT w = timers [k];	516	WT w = heap [k];
338		517
339	while (k && timers [k >> 1]->at > w->at)	518	while (k && heap [k >> 1]->at > w->at)
340	{	519	{
341	timers [k] = timers [k >> 1];	520	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
343	k >>= 1;	522	k >>= 1;
344	}	523	}
345		524
346	timers [k] = w;	525	heap [k] = w;
347	timers [k]->active = k + 1;	526	((W)heap [k])->active = k + 1;
348		527
349	}	528	}
350		529
351	static void	530	static void
352	downheap (WT *timers, int N, int k)	531	downheap (WT *heap, int N, int k)
353	{	532	{
354	WT w = timers [k];	533	WT w = heap [k];
355		534
356	while (k < (N >> 1))	535	while (k < (N >> 1))
357	{	536	{
358	int j = k << 1;	537	int j = k << 1;
359		538
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	539	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	540	++j;
362		541
363	if (w->at <= timers [j]->at)	542	if (w->at <= heap [j]->at)
364	break;	543	break;
365		544
366	timers [k] = timers [j];	545	heap [k] = heap [j];
367	timers [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
368	k = j;	547	k = j;
369	}	548	}
370		549
371	timers [k] = w;	550	heap [k] = w;
372	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);
373	}	559	}
374		560
375	/*****************************************************************************/	561	/*****************************************************************************/
376		562
377	typedef struct	563	typedef struct
378	{	564	{
379	struct ev_signal *head;	565	WL head;
380	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
381	} ANSIG;	567	} ANSIG;
382		568
383	static ANSIG *signals;	569	static ANSIG *signals;
384	static int signalmax;	570	static int signalmax;
…		…
400	}	586	}
401		587
402	static void	588	static void
403	sighandler (int signum)	589	sighandler (int signum)
404	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
405	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
406		596
407	if (!gotsig)	597	if (!gotsig)
408	{	598	{
		599	int old_errno = errno;
409	gotsig = 1;	600	gotsig = 1;
410	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
		602	errno = old_errno;
411	}	603	}
412	}	604	}
413		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
414	static void	626	static void
415	sigcb (struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	628	{
417	struct ev_signal *w;
418	int signum;	629	int signum;
419		630
420	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
421	gotsig = 0;	632	gotsig = 0;
422		633
423	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
424	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
425	{	636	ev_feed_signal_event (EV_A_ signum + 1);
426	signals [signum].gotsig = 0;
427
428	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);
430	}
431	}	637	}
432		638
433	static void	639	inline void
434	siginit (void)	640	fd_intern (int fd)
435	{	641	{
		642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	646	fcntl (fd, F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438
439	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	647	fcntl (fd, F_SETFL, O_NONBLOCK);
441	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]);
442		656
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	658	ev_io_start (EV_A_ &sigev);
		659	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	660	}
446		661
447	/*****************************************************************************/	662	/*****************************************************************************/
448		663
449	static struct ev_idle **idles;
450	static int idlemax, idlecnt;
451
452	static struct ev_prepare **prepares;
453	static int preparemax, preparecnt;
454
455	static struct ev_check **checks;
456	static int checkmax, checkcnt;
457
458	/*****************************************************************************/
459
460	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
461	static struct ev_signal childev;	668	static struct ev_signal childev;
462		669
463	#ifndef WCONTINUED	670	#ifndef WCONTINUED
464	# define WCONTINUED 0	671	# define WCONTINUED 0
465	#endif	672	#endif
466		673
467	static void	674	static void
468	childcb (struct ev_signal *sw, int revents)	675	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	676	{
470	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	{
471	int pid, status;	692	int pid, status;
472		693
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	695	{
475	if (w->pid == pid \|\| !w->pid)	696	/* make sure we are called again until all childs have been reaped */
476	{	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	698
478	event ((W)w, EV_CHILD);	699	child_reap (EV_A_ sw, pid, pid, status);
479	}	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		701	}
480	}	702	}
		703
		704	#endif
481		705
482	/*****************************************************************************/	706	/*****************************************************************************/
483		707
		708	#if EV_USE_KQUEUE
		709	# include "ev_kqueue.c"
		710	#endif
484	#if EV_USE_EPOLL	711	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	712	# include "ev_epoll.c"
486	#endif	713	#endif
487	#if EV_USE_POLL	714	#if EV_USE_POLL
488	# include "ev_poll.c"	715	# include "ev_poll.c"
…		…
501	ev_version_minor (void)	728	ev_version_minor (void)
502	{	729	{
503	return EV_VERSION_MINOR;	730	return EV_VERSION_MINOR;
504	}	731	}
505		732
506	/* 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 */
507	static int	734	static int
508	enable_secure ()	735	enable_secure (void)
509	{	736	{
		737	#ifdef _WIN32
		738	return 0;
		739	#else
510	return getuid () != geteuid ()	740	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
		742	#endif
512	}	743	}
513		744
514	int ev_init (int methods)	745	int
		746	ev_method (EV_P)
515	{	747	{
		748	return method;
		749	}
		750
		751	static void
		752	loop_init (EV_P_ int methods)
		753	{
516	if (!ev_method)	754	if (!method)
517	{	755	{
518	#if EV_USE_MONOTONIC	756	#if EV_USE_MONOTONIC
519	{	757	{
520	struct timespec ts;	758	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	760	have_monotonic = 1;
523	}	761	}
524	#endif	762	#endif
525		763
526	ev_now = ev_time ();	764	ev_rt_now = ev_time ();
527	now = get_clock ();	765	mn_now = get_clock ();
528	now_floor = now;	766	now_floor = mn_now;
529	diff = ev_now - now;	767	rtmn_diff = ev_rt_now - mn_now;
530
531	if (pipe (sigpipe))
532	return 0;
533		768
534	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
537	else	772	else
538	methods = EVMETHOD_ANY;	773	methods = EVMETHOD_ANY;
539		774
540	ev_method = 0;	775	method = 0;
		776	#if EV_USE_KQUEUE
		777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		778	#endif
541	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	781	#endif
544	#if EV_USE_POLL	782	#if EV_USE_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	784	#endif
547	#if EV_USE_SELECT	785	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	787	#endif
550		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
551	if (ev_method)	908	if (ev_method (EV_A))
552	{	909	{
553	ev_watcher_init (&sigev, sigcb);
554	siginit ();	910	siginit (EV_A);
555		911
		912	#ifndef _WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
		914	ev_set_priority (&childev, EV_MAXPRI);
557	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
558	}	918	}
		919	else
		920	default_loop = 0;
559	}	921	}
560		922
561	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;
562	}	956	}
563		957
564	/*****************************************************************************/	958	/*****************************************************************************/
565		959
566	void
567	ev_fork_prepare (void)
568	{
569	/* nop */
570	}
571
572	void
573	ev_fork_parent (void)
574	{
575	/* nop */
576	}
577
578	void
579	ev_fork_child (void)
580	{
581	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();
584	#endif
585
586	ev_io_stop (&sigev);
587	close (sigpipe [0]);
588	close (sigpipe [1]);
589	pipe (sigpipe);
590	siginit ();
591	}
592
593	/*****************************************************************************/
594
595	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
596	call_pending (void)	973	call_pending (EV_P)
597	{	974	{
		975	int pri;
		976
		977	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	978	while (pendingcnt [pri])
599	{	979	{
600	ANPENDING *p = pendings + --pendingcnt;	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		981
602	if (p->w)	982	if (p->w)
603	{	983	{
604	p->w->pending = 0;	984	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
606	}	986	}
607	}	987	}
608	}	988	}
609		989
610	static void	990	static void
611	timers_reify (void)	991	timers_reify (EV_P)
612	{	992	{
613	while (timercnt && timers [0]->at <= now)	993	while (timercnt && ((WT)timers [0])->at <= mn_now)
614	{	994	{
615	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)));
616		998
617	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
618	if (w->repeat)	1000	if (w->repeat)
619	{	1001	{
620	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
621	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
622	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
623	}	1009	}
624	else	1010	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		1012
627	event ((W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
628	}	1014	}
629	}	1015	}
630		1016
		1017	#if EV_PERIODICS
631	static void	1018	static void
632	periodics_reify (void)	1019	periodics_reify (EV_P)
633	{	1020	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
635	{	1022	{
636	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
637		1024
		1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1026
638	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
639	if (w->interval)	1028	if (w->reschedule_cb)
640	{	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	{
641	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;
642	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));
643	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
644	}	1040	}
645	else	1041	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		1043
648	event ((W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
649	}	1045	}
650	}	1046	}
651		1047
652	static void	1048	static void
653	periodics_reschedule (ev_tstamp diff)	1049	periodics_reschedule (EV_P)
654	{	1050	{
655	int i;	1051	int i;
656		1052
657	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
659	{	1055	{
660	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
661		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
662	if (w->interval)	1060	else if (w->interval)
663	{
664	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;
665
666	if (fabs (diff) >= 1e-4)
667	{
668	ev_periodic_stop (w);
669	ev_periodic_start (w);
670
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}
673	}
674	}	1062	}
675	}
676		1063
677	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
678	time_update_monotonic (void)	1071	time_update_monotonic (EV_P)
679	{	1072	{
680	now = get_clock ();	1073	mn_now = get_clock ();
681		1074
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	1076	{
684	ev_now = now + diff;	1077	ev_rt_now = rtmn_diff + mn_now;
685	return 0;	1078	return 0;
686	}	1079	}
687	else	1080	else
688	{	1081	{
689	now_floor = now;	1082	now_floor = mn_now;
690	ev_now = ev_time ();	1083	ev_rt_now = ev_time ();
691	return 1;	1084	return 1;
692	}	1085	}
693	}	1086	}
694		1087
695	static void	1088	static void
696	time_update (void)	1089	time_update (EV_P)
697	{	1090	{
698	int i;	1091	int i;
699		1092
700	#if EV_USE_MONOTONIC	1093	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	1094	if (expect_true (have_monotonic))
702	{	1095	{
703	if (time_update_monotonic ())	1096	if (time_update_monotonic (EV_A))
704	{	1097	{
705	ev_tstamp odiff = diff;	1098	ev_tstamp odiff = rtmn_diff;
706		1099
707	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 */
708	{	1101	{
709	diff = ev_now - now;	1102	rtmn_diff = ev_rt_now - mn_now;
710		1103
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	1105	return; /* all is well */
713		1106
714	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
715	now = get_clock ();	1108	mn_now = get_clock ();
716	now_floor = now;	1109	now_floor = mn_now;
717	}	1110	}
718		1111
		1112	# if EV_PERIODICS
719	periodics_reschedule (diff - odiff);	1113	periodics_reschedule (EV_A);
		1114	# endif
720	/* 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) */
721	}	1117	}
722	}	1118	}
723	else	1119	else
724	#endif	1120	#endif
725	{	1121	{
726	ev_now = ev_time ();	1122	ev_rt_now = ev_time ();
727		1123
728	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))
729	{	1125	{
		1126	#if EV_PERIODICS
730	periodics_reschedule (ev_now - now);	1127	periodics_reschedule (EV_A);
		1128	#endif
731		1129
732	/* 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 */
733	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
735	}	1133	}
736		1134
737	now = ev_now;	1135	mn_now = ev_rt_now;
738	}	1136	}
739	}	1137	}
740		1138
741	int ev_loop_done;	1139	void
		1140	ev_ref (EV_P)
		1141	{
		1142	++activecnt;
		1143	}
742		1144
		1145	void
		1146	ev_unref (EV_P)
		1147	{
		1148	--activecnt;
		1149	}
		1150
		1151	static int loop_done;
		1152
		1153	void
743	void ev_loop (int flags)	1154	ev_loop (EV_P_ int flags)
744	{	1155	{
745	double block;	1156	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1157	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		1158
748	do	1159	do
749	{	1160	{
750	/* queue check watchers (and execute them) */	1161	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	1162	if (expect_false (preparecnt))
752	{	1163	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	1165	call_pending (EV_A);
755	}	1166	}
756		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
757	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
758	fd_reify ();	1173	fd_reify (EV_A);
759		1174
760	/* calculate blocking time */	1175	/* calculate blocking time */
761		1176
762	/* 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
763	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
766	time_update_monotonic ();	1181	time_update_monotonic (EV_A);
767	else	1182	else
768	#endif	1183	#endif
769	{	1184	{
770	ev_now = ev_time ();	1185	ev_rt_now = ev_time ();
771	now = ev_now;	1186	mn_now = ev_rt_now;
772	}	1187	}
773		1188
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	1190	block = 0.;
776	else	1191	else
777	{	1192	{
778	block = MAX_BLOCKTIME;	1193	block = MAX_BLOCKTIME;
779		1194
780	if (timercnt)	1195	if (timercnt)
781	{	1196	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
783	if (block > to) block = to;	1198	if (block > to) block = to;
784	}	1199	}
785		1200
		1201	#if EV_PERIODICS
786	if (periodiccnt)	1202	if (periodiccnt)
787	{	1203	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
789	if (block > to) block = to;	1205	if (block > to) block = to;
790	}	1206	}
		1207	#endif
791		1208
792	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
793	}	1210	}
794		1211
795	method_poll (block);	1212	method_poll (EV_A_ block);
796		1213
797	/* update ev_now, do magic */	1214	/* update ev_rt_now, do magic */
798	time_update ();	1215	time_update (EV_A);
799		1216
800	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
802	periodics_reify (); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
803		1222
804	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		1226
808	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
809	if (checkcnt)	1228	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		1230
812	call_pending ();	1231	call_pending (EV_A);
813	}	1232	}
814	while (!ev_loop_done);	1233	while (activecnt && !loop_done);
815		1234
816	if (ev_loop_done != 2)	1235	if (loop_done != 2)
817	ev_loop_done = 0;	1236	loop_done = 0;
		1237	}
		1238
		1239	void
		1240	ev_unloop (EV_P_ int how)
		1241	{
		1242	loop_done = how;
818	}	1243	}
819		1244
820	/*****************************************************************************/	1245	/*****************************************************************************/
821		1246
822	static void	1247	inline void
823	wlist_add (WL *head, WL elem)	1248	wlist_add (WL *head, WL elem)
824	{	1249	{
825	elem->next = *head;	1250	elem->next = *head;
826	*head = elem;	1251	*head = elem;
827	}	1252	}
828		1253
829	static void	1254	inline void
830	wlist_del (WL *head, WL elem)	1255	wlist_del (WL *head, WL elem)
831	{	1256	{
832	while (*head)	1257	while (*head)
833	{	1258	{
834	if (*head == elem)	1259	if (*head == elem)
…		…
839		1264
840	head = &(*head)->next;	1265	head = &(*head)->next;
841	}	1266	}
842	}	1267	}
843		1268
844	static void	1269	inline void
845	ev_clear_pending (W w)	1270	ev_clear_pending (EV_P_ W w)
846	{	1271	{
847	if (w->pending)	1272	if (w->pending)
848	{	1273	{
849	pendings [w->pending - 1].w = 0;	1274	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	1275	w->pending = 0;
851	}	1276	}
852	}	1277	}
853		1278
854	static void	1279	inline void
855	ev_start (W w, int active)	1280	ev_start (EV_P_ W w, int active)
856	{	1281	{
		1282	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1283	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1284
857	w->active = active;	1285	w->active = active;
		1286	ev_ref (EV_A);
858	}	1287	}
859		1288
860	static void	1289	inline void
861	ev_stop (W w)	1290	ev_stop (EV_P_ W w)
862	{	1291	{
		1292	ev_unref (EV_A);
863	w->active = 0;	1293	w->active = 0;
864	}	1294	}
865		1295
866	/*****************************************************************************/	1296	/*****************************************************************************/
867		1297
868	void	1298	void
869	ev_io_start (struct ev_io *w)	1299	ev_io_start (EV_P_ struct ev_io *w)
870	{	1300	{
871	int fd = w->fd;	1301	int fd = w->fd;
872		1302
873	if (ev_is_active (w))	1303	if (ev_is_active (w))
874	return;	1304	return;
875		1305
876	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
877		1307
878	ev_start ((W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		1311
882	fd_change (fd);	1312	fd_change (EV_A_ fd);
883	}	1313	}
884		1314
885	void	1315	void
886	ev_io_stop (struct ev_io *w)	1316	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1317	{
888	ev_clear_pending ((W)w);	1318	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
890	return;	1320	return;
891		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
894		1326
895	fd_change (w->fd);	1327	fd_change (EV_A_ w->fd);
896	}	1328	}
897		1329
898	void	1330	void
899	ev_timer_start (struct ev_timer *w)	1331	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1332	{
901	if (ev_is_active (w))	1333	if (ev_is_active (w))
902	return;	1334	return;
903		1335
904	w->at += now;	1336	((WT)w)->at += mn_now;
905		1337
906	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.));
907		1339
908	ev_start ((W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
910	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
912	}
913		1344
		1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1346	}
		1347
914	void	1348	void
915	ev_timer_stop (struct ev_timer *w)	1349	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1350	{
917	ev_clear_pending ((W)w);	1351	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1352	if (!ev_is_active (w))
919	return;	1353	return;
920		1354
		1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1356
921	if (w->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
922	{	1358	{
923	timers [w->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
924	downheap ((WT *)timers, timercnt, w->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
925	}	1361	}
926		1362
927	w->at = w->repeat;	1363	((WT)w)->at -= mn_now;
928		1364
929	ev_stop ((W)w);	1365	ev_stop (EV_A_ (W)w);
930	}	1366	}
931		1367
932	void	1368	void
933	ev_timer_again (struct ev_timer *w)	1369	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1370	{
935	if (ev_is_active (w))	1371	if (ev_is_active (w))
936	{	1372	{
937	if (w->repeat)	1373	if (w->repeat)
938	{	1374	{
939	w->at = now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
941	}	1377	}
942	else	1378	else
943	ev_timer_stop (w);	1379	ev_timer_stop (EV_A_ w);
944	}	1380	}
945	else if (w->repeat)	1381	else if (w->repeat)
946	ev_timer_start (w);	1382	ev_timer_start (EV_A_ w);
947	}	1383	}
948		1384
		1385	#if EV_PERIODICS
949	void	1386	void
950	ev_periodic_start (struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1388	{
952	if (ev_is_active (w))	1389	if (ev_is_active (w))
953	return;	1390	return;
954		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
955	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.));
956
957	/* 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 */
958	if (w->interval)
959	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	}
960		1400
961	ev_start ((W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
963	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
965	}
966		1405
		1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1407	}
		1408
967	void	1409	void
968	ev_periodic_stop (struct ev_periodic *w)	1410	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1411	{
970	ev_clear_pending ((W)w);	1412	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1413	if (!ev_is_active (w))
972	return;	1414	return;
973		1415
		1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1417
974	if (w->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
975	{	1419	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
978	}	1422	}
979		1423
980	ev_stop ((W)w);	1424	ev_stop (EV_A_ (W)w);
981	}	1425	}
982		1426
983	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
984	ev_signal_start (struct ev_signal *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
985	{	1438	{
986	if (ev_is_active (w))	1439	if (ev_is_active (w))
987	return;	1440	return;
988		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
989	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));
990		1516
991	ev_start ((W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1520
995	if (!w->next)	1521	if (!((WL)w)->next)
996	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
997	struct sigaction sa;	1526	struct sigaction sa;
998	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
1002	}	1532	}
1003	}	1533	}
1004		1534
1005	void	1535	void
1006	ev_signal_stop (struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1537	{
1008	ev_clear_pending ((W)w);	1538	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1539	if (!ev_is_active (w))
1010	return;	1540	return;
1011		1541
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1542	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1543	ev_stop (EV_A_ (W)w);
1014		1544
1015	if (!signals [w->signum - 1].head)	1545	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1546	signal (w->signum, SIG_DFL);
1017	}	1547	}
1018		1548
1019	void	1549	void
1020	ev_idle_start (struct ev_idle *w)	1550	ev_child_start (EV_P_ struct ev_child *w)
1021	{	1551	{
		1552	#if EV_MULTIPLICITY
		1553	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1554	#endif
1022	if (ev_is_active (w))	1555	if (ev_is_active (w))
1023	return;	1556	return;
1024		1557
1025	ev_start ((W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;
1028	}
1029
1030	void
1031	ev_idle_stop (struct ev_idle *w)
1032	{
1033	ev_clear_pending ((W)w);
1034	if (ev_is_active (w))
1035	return;
1036
1037	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);
1039	}
1040
1041	void
1042	ev_prepare_start (struct ev_prepare *w)
1043	{
1044	if (ev_is_active (w))
1045	return;
1046
1047	ev_start ((W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;
1050	}
1051
1052	void
1053	ev_prepare_stop (struct ev_prepare *w)
1054	{
1055	ev_clear_pending ((W)w);
1056	if (ev_is_active (w))
1057	return;
1058
1059	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);
1061	}
1062
1063	void
1064	ev_check_start (struct ev_check *w)
1065	{
1066	if (ev_is_active (w))
1067	return;
1068
1069	ev_start ((W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;
1072	}
1073
1074	void
1075	ev_check_stop (struct ev_check *w)
1076	{
1077	ev_clear_pending ((W)w);
1078	if (ev_is_active (w))
1079	return;
1080
1081	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);
1083	}
1084
1085	void
1086	ev_child_start (struct ev_child *w)
1087	{
1088	if (ev_is_active (w))
1089	return;
1090
1091	ev_start ((W)w, 1);	1558	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1559	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1560	}
1094		1561
1095	void	1562	void
1096	ev_child_stop (struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1564	{
1098	ev_clear_pending ((W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1100	return;	1567	return;
1101		1568
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1570	ev_stop (EV_A_ (W)w);
1104	}	1571	}
1105		1572
1106	/*****************************************************************************/	1573	/*****************************************************************************/
1107		1574
1108	struct ev_once	1575	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1579	void (cb)(int revents, void arg);
1113	void *arg;	1580	void *arg;
1114	};	1581	};
1115		1582
1116	static void	1583	static void
1117	once_cb (struct ev_once *once, int revents)	1584	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1585	{
1119	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1587	void *arg = once->arg;
1121		1588
1122	ev_io_stop (&once->io);	1589	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1591	ev_free (once);
1125		1592
1126	cb (revents, arg);	1593	cb (revents, arg);
1127	}	1594	}
1128		1595
1129	static void	1596	static void
1130	once_cb_io (struct ev_io *w, int revents)	1597	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1598	{
1132	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);
1133	}	1600	}
1134		1601
1135	static void	1602	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1603	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1604	{
1138	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);
1139	}	1606	}
1140		1607
1141	void	1608	void
1142	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)
1143	{	1610	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1145		1612
1146	if (!once)	1613	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1148	else	1615	else
1149	{	1616	{
1150	once->cb = cb;	1617	once->cb = cb;
1151	once->arg = arg;	1618	once->arg = arg;
1152		1619
1153	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1621	if (fd >= 0)
1155	{	1622	{
1156	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1624	ev_io_start (EV_A_ &once->io);
1158	}	1625	}
1159		1626
1160	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1628	if (timeout >= 0.)
1162	{	1629	{
1163	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1631	ev_timer_start (EV_A_ &once->to);
1165	}	1632	}
1166	}	1633	}
1167	}	1634	}
1168		1635
1169	/*****************************************************************************/	1636	#ifdef __cplusplus
1170
1171	#if 0
1172
1173	struct ev_io wio;
1174
1175	static void
1176	sin_cb (struct ev_io *w, int revents)
1177	{
1178	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1179	}	1637	}
1180
1181	static void
1182	ocb (struct ev_timer *w, int revents)
1183	{
1184	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1185	ev_timer_stop (w);
1186	ev_timer_start (w);
1187	}
1188
1189	static void
1190	scb (struct ev_signal *w, int revents)
1191	{
1192	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1193	ev_io_stop (&wio);
1194	ev_io_start (&wio);
1195	}
1196
1197	static void
1198	gcb (struct ev_signal *w, int revents)
1199	{
1200	fprintf (stderr, "generic %x\n", revents);
1201
1202	}
1203
1204	int main (void)
1205	{
1206	ev_init (0);
1207
1208	ev_io_init (&wio, sin_cb, 0, EV_READ);
1209	ev_io_start (&wio);
1210
1211	struct ev_timer t[10000];
1212
1213	#if 0
1214	int i;
1215	for (i = 0; i < 10000; ++i)
1216	{
1217	struct ev_timer *w = t + i;
1218	ev_watcher_init (w, ocb, i);
1219	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1220	ev_timer_start (w);
1221	if (drand48 () < 0.5)
1222	ev_timer_stop (w);
1223	}
1224	#endif	1638	#endif
1225		1639
1226	struct ev_timer t1;
1227	ev_timer_init (&t1, ocb, 5, 10);
1228	ev_timer_start (&t1);
1229
1230	struct ev_signal sig;
1231	ev_signal_init (&sig, scb, SIGQUIT);
1232	ev_signal_start (&sig);
1233
1234	struct ev_check cw;
1235	ev_check_init (&cw, gcb);
1236	ev_check_start (&cw);
1237
1238	struct ev_idle iw;
1239	ev_idle_init (&iw, gcb);
1240	ev_idle_start (&iw);
1241
1242	ev_loop (0);
1243
1244	return 0;
1245	}
1246
1247	#endif
1248
1249
1250
1251

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Comparing libev/ev.c (file contents): Revision 1.41 by root, Fri Nov 2 16:54:34 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 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC