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

Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.104 by root, Mon Nov 12 00:39:45 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)
		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)
		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
		101	#endif
		102
		103	#ifndef EV_USE_POLL
		104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
59	#endif	109	#endif
60		110
61	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
62	# 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
63	#endif	117	#endif
64		118
65	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
67	#endif	121	#endif
…		…
74	#endif	128	#endif
75		129
76	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
77	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
79	#endif	137	#endif
80		138
81	/**/	139	/**/
82		140
83	#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) */
84	#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) */
85	#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 */
86	/#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 */
87		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
88	#include "ev.h"	149	# include "ev.h"
		150	#endif
89		151
90	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
91	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
92	# define inline inline	154	# define inline inline
93	#else	155	#else
…		…
96	#endif	158	#endif
97		159
98	#define expect_false(expr) expect ((expr) != 0, 0)	160	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
100		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
101	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
104		171
105	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
106	ev_tstamp ev_now;	261	ev_tstamp ev_rt_now;
107	int ev_method;	262	#define VAR(name,decl) static decl;
		263	#include "ev_vars.h"
		264	#undef VAR
108		265
109	static int have_monotonic; /* runtime */	266	static int default_loop;
110		267
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	268	#endif
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114		269
115	/*****************************************************************************/	270	/*****************************************************************************/
116		271
117	ev_tstamp	272	ev_tstamp
118	ev_time (void)	273	ev_time (void)
…		…
126	gettimeofday (&tv, 0);	281	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	282	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	283	#endif
129	}	284	}
130		285
131	static ev_tstamp	286	inline ev_tstamp
132	get_clock (void)	287	get_clock (void)
133	{	288	{
134	#if EV_USE_MONOTONIC	289	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	290	if (expect_true (have_monotonic))
136	{	291	{
…		…
141	#endif	296	#endif
142		297
143	return ev_time ();	298	return ev_time ();
144	}	299	}
145		300
		301	#if EV_MULTIPLICITY
		302	ev_tstamp
		303	ev_now (EV_P)
		304	{
		305	return ev_rt_now;
		306	}
		307	#endif
		308
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
147		310
148	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
149	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
150	{ \	313	{ \
151	int newcnt = cur; \	314	int newcnt = cur; \
152	do \	315	do \
153	{ \	316	{ \
154	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
155	} \	318	} \
156	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
157	\	320	\
158	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
159	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
160	cur = newcnt; \	323	cur = newcnt; \
161	}	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;
162		336
163	/*****************************************************************************/	337	/*****************************************************************************/
164
165	typedef struct
166	{
167	struct ev_io *head;
168	unsigned char events;
169	unsigned char reify;
170	} ANFD;
171
172	static ANFD *anfds;
173	static int anfdmax;
174		338
175	static void	339	static void
176	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
177	{	341	{
178	while (count--)	342	while (count--)
…		…
183		347
184	++base;	348	++base;
185	}	349	}
186	}	350	}
187		351
188	typedef struct	352	void
		353	ev_feed_event (EV_P_ void *w, int revents)
189	{	354	{
190	W w;	355	W w_ = (W)w;
191	int events;
192	} ANPENDING;
193		356
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void
198	event (W w, int events)
199	{
200	if (w->pending)	357	if (w_->pending)
201	{	358	{
202	pendings [w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
203	return;	360	return;
204	}	361	}
205		362
206	w->pending = ++pendingcnt;	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	364	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
208	pendings [pendingcnt - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
209	pendings [pendingcnt - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
210	}	367	}
211		368
212	static void	369	static void
213	queue_events (W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	371	{
215	int i;	372	int i;
216		373
217	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
219	}	376	}
220		377
221	static void	378	inline void
222	fd_event (int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
223	{	380	{
224	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	382	struct ev_io *w;
226		383
227	for (w = anfd->head; w; w = w->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	385	{
229	int ev = w->events & events;	386	int ev = w->events & revents;
230		387
231	if (ev)	388	if (ev)
232	event ((W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
233	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
234	}	397	}
235		398
236	/*****************************************************************************/	399	/*****************************************************************************/
237		400
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	401	static void
242	fd_reify (void)	402	fd_reify (EV_P)
243	{	403	{
244	int i;	404	int i;
245		405
246	for (i = 0; i < fdchangecnt; ++i)	406	for (i = 0; i < fdchangecnt; ++i)
247	{	407	{
…		…
249	ANFD *anfd = anfds + fd;	409	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	410	struct ev_io *w;
251		411
252	int events = 0;	412	int events = 0;
253		413
254	for (w = anfd->head; w; w = w->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	415	events \|= w->events;
256		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
257	anfd->reify = 0;	426	anfd->reify = 0;
258		427
259	if (anfd->events != events)
260	{
261	method_modify (fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	429	anfd->events = events;
263	}
264	}	430	}
265		431
266	fdchangecnt = 0;	432	fdchangecnt = 0;
267	}	433	}
268		434
269	static void	435	static void
270	fd_change (int fd)	436	fd_change (EV_P_ int fd)
271	{	437	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
273	return;	439	return;
274		440
275	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
276		442
277	++fdchangecnt;	443	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
279	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
280	}	446	}
281		447
		448	static void
		449	fd_kill (EV_P_ int fd)
		450	{
		451	struct ev_io *w;
		452
		453	while ((w = (struct ev_io *)anfds [fd].head))
		454	{
		455	ev_io_stop (EV_A_ w);
		456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		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
		468	}
		469
282	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
283	static void	471	static void
284	fd_recheck (void)	472	fd_ebadf (EV_P)
285	{	473	{
286	int fd;	474	int fd;
287		475
288	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	477	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
291	while (anfds [fd].head)	479	fd_kill (EV_A_ fd);
		480	}
		481
		482	/* called on ENOMEM in select/poll to kill some fds and retry */
		483	static void
		484	fd_enomem (EV_P)
		485	{
		486	int fd;
		487
		488	for (fd = anfdmax; fd--; )
		489	if (anfds [fd].events)
292	{	490	{
293	ev_io_stop (anfds [fd].head);	491	fd_kill (EV_A_ fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	492	return;
295	}	493	}
		494	}
		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	}
296	}	509	}
297		510
298	/*****************************************************************************/	511	/*****************************************************************************/
299		512
300	static struct ev_timer **timers;
301	static int timermax, timercnt;
302
303	static struct ev_periodic **periodics;
304	static int periodicmax, periodiccnt;
305
306	static void	513	static void
307	upheap (WT *timers, int k)	514	upheap (WT *heap, int k)
308	{	515	{
309	WT w = timers [k];	516	WT w = heap [k];
310		517
311	while (k && timers [k >> 1]->at > w->at)	518	while (k && heap [k >> 1]->at > w->at)
312	{	519	{
313	timers [k] = timers [k >> 1];	520	heap [k] = heap [k >> 1];
314	timers [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
315	k >>= 1;	522	k >>= 1;
316	}	523	}
317		524
318	timers [k] = w;	525	heap [k] = w;
319	timers [k]->active = k + 1;	526	((W)heap [k])->active = k + 1;
320		527
321	}	528	}
322		529
323	static void	530	static void
324	downheap (WT *timers, int N, int k)	531	downheap (WT *heap, int N, int k)
325	{	532	{
326	WT w = timers [k];	533	WT w = heap [k];
327		534
328	while (k < (N >> 1))	535	while (k < (N >> 1))
329	{	536	{
330	int j = k << 1;	537	int j = k << 1;
331		538
332	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	539	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
333	++j;	540	++j;
334		541
335	if (w->at <= timers [j]->at)	542	if (w->at <= heap [j]->at)
336	break;	543	break;
337		544
338	timers [k] = timers [j];	545	heap [k] = heap [j];
339	timers [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
340	k = j;	547	k = j;
341	}	548	}
342		549
343	timers [k] = w;	550	heap [k] = w;
344	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);
345	}	559	}
346		560
347	/*****************************************************************************/	561	/*****************************************************************************/
348		562
349	typedef struct	563	typedef struct
350	{	564	{
351	struct ev_signal *head;	565	WL head;
352	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
353	} ANSIG;	567	} ANSIG;
354		568
355	static ANSIG *signals;	569	static ANSIG *signals;
356	static int signalmax;	570	static int signalmax;
…		…
372	}	586	}
373		587
374	static void	588	static void
375	sighandler (int signum)	589	sighandler (int signum)
376	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
377	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
378		596
379	if (!gotsig)	597	if (!gotsig)
380	{	598	{
		599	int old_errno = errno;
381	gotsig = 1;	600	gotsig = 1;
382	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
		602	errno = old_errno;
383	}	603	}
384	}	604	}
385		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
386	static void	626	static void
387	sigcb (struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	628	{
389	struct ev_signal *w;
390	int signum;	629	int signum;
391		630
392	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
393	gotsig = 0;	632	gotsig = 0;
394		633
395	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
396	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
397	{	636	ev_feed_signal_event (EV_A_ signum + 1);
398	signals [signum].gotsig = 0;
399
400	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);
402	}
403	}	637	}
404		638
405	static void	639	inline void
406	siginit (void)	640	fd_intern (int fd)
407	{	641	{
		642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	646	fcntl (fd, F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410
411	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	647	fcntl (fd, F_SETFL, O_NONBLOCK);
413	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]);
414		656
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	658	ev_io_start (EV_A_ &sigev);
		659	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	660	}
418		661
419	/*****************************************************************************/	662	/*****************************************************************************/
420		663
421	static struct ev_idle **idles;
422	static int idlemax, idlecnt;
423
424	static struct ev_prepare **prepares;
425	static int preparemax, preparecnt;
426
427	static struct ev_check **checks;
428	static int checkmax, checkcnt;
429
430	/*****************************************************************************/
431
432	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
433	static struct ev_signal childev;	668	static struct ev_signal childev;
434		669
435	#ifndef WCONTINUED	670	#ifndef WCONTINUED
436	# define WCONTINUED 0	671	# define WCONTINUED 0
437	#endif	672	#endif
438		673
439	static void	674	static void
440	childcb (struct ev_signal *sw, int revents)	675	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	676	{
442	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	{
443	int pid, status;	692	int pid, status;
444		693
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	695	{
447	if (w->pid == pid \|\| !w->pid)	696	/* make sure we are called again until all childs have been reaped */
448	{	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	698
450	event ((W)w, EV_CHILD);	699	child_reap (EV_A_ sw, pid, pid, status);
451	}	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		701	}
452	}	702	}
		703
		704	#endif
453		705
454	/*****************************************************************************/	706	/*****************************************************************************/
455		707
		708	#if EV_USE_KQUEUE
		709	# include "ev_kqueue.c"
		710	#endif
456	#if EV_USE_EPOLL	711	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	712	# include "ev_epoll.c"
458	#endif	713	#endif
		714	#if EV_USE_POLL
		715	# include "ev_poll.c"
		716	#endif
459	#if EV_USE_SELECT	717	#if EV_USE_SELECT
460	# include "ev_select.c"	718	# include "ev_select.c"
461	#endif	719	#endif
462		720
463	int	721	int
…		…
470	ev_version_minor (void)	728	ev_version_minor (void)
471	{	729	{
472	return EV_VERSION_MINOR;	730	return EV_VERSION_MINOR;
473	}	731	}
474		732
475	int ev_init (int flags)	733	/* return true if we are running with elevated privileges and should ignore env variables */
		734	static int
		735	enable_secure (void)
476	{	736	{
		737	#ifdef _WIN32
		738	return 0;
		739	#else
		740	return getuid () != geteuid ()
		741	\|\| getgid () != getegid ();
		742	#endif
		743	}
		744
		745	int
		746	ev_method (EV_P)
		747	{
		748	return method;
		749	}
		750
		751	static void
		752	loop_init (EV_P_ int methods)
		753	{
477	if (!ev_method)	754	if (!method)
478	{	755	{
479	#if EV_USE_MONOTONIC	756	#if EV_USE_MONOTONIC
480	{	757	{
481	struct timespec ts;	758	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	760	have_monotonic = 1;
484	}	761	}
485	#endif	762	#endif
486		763
487	ev_now = ev_time ();	764	ev_rt_now = ev_time ();
488	now = get_clock ();	765	mn_now = get_clock ();
489	now_floor = now;	766	now_floor = mn_now;
490	diff = ev_now - now;	767	rtmn_diff = ev_rt_now - mn_now;
491		768
492	if (pipe (sigpipe))	769	if (methods == EVMETHOD_AUTO)
493	return 0;	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
494		771	methods = atoi (getenv ("LIBEV_METHODS"));
		772	else
495	ev_method = EVMETHOD_NONE;	773	methods = EVMETHOD_ANY;
		774
		775	method = 0;
		776	#if EV_USE_KQUEUE
		777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		778	#endif
496	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		781	#endif
		782	#if EV_USE_POLL
		783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	784	#endif
499	#if EV_USE_SELECT	785	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	787	#endif
502		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
503	if (ev_method)	908	if (ev_method (EV_A))
504	{	909	{
505	ev_watcher_init (&sigev, sigcb);
506	siginit ();	910	siginit (EV_A);
507		911
		912	#ifndef _WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
		914	ev_set_priority (&childev, EV_MAXPRI);
509	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
510	}	918	}
		919	else
		920	default_loop = 0;
511	}	921	}
512		922
513	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;
514	}	956	}
515		957
516	/*****************************************************************************/	958	/*****************************************************************************/
517		959
518	void
519	ev_fork_prepare (void)
520	{
521	/* nop */
522	}
523
524	void
525	ev_fork_parent (void)
526	{
527	/* nop */
528	}
529
530	void
531	ev_fork_child (void)
532	{
533	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();
536	#endif
537
538	ev_io_stop (&sigev);
539	close (sigpipe [0]);
540	close (sigpipe [1]);
541	pipe (sigpipe);
542	siginit ();
543	}
544
545	/*****************************************************************************/
546
547	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
548	call_pending (void)	973	call_pending (EV_P)
549	{	974	{
		975	int pri;
		976
		977	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	978	while (pendingcnt [pri])
551	{	979	{
552	ANPENDING *p = pendings + --pendingcnt;	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		981
554	if (p->w)	982	if (p->w)
555	{	983	{
556	p->w->pending = 0;	984	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
558	}	986	}
559	}	987	}
560	}	988	}
561		989
562	static void	990	static void
563	timers_reify (void)	991	timers_reify (EV_P)
564	{	992	{
565	while (timercnt && timers [0]->at <= now)	993	while (timercnt && ((WT)timers [0])->at <= mn_now)
566	{	994	{
567	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)));
568		998
569	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
570	if (w->repeat)	1000	if (w->repeat)
571	{	1001	{
572	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
573	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
574	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
575	}	1009	}
576	else	1010	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		1012
579	event ((W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
580	}	1014	}
581	}	1015	}
582		1016
		1017	#if EV_PERIODICS
583	static void	1018	static void
584	periodics_reify (void)	1019	periodics_reify (EV_P)
585	{	1020	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
587	{	1022	{
588	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
589		1024
		1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1026
590	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
591	if (w->interval)	1028	if (w->reschedule_cb)
592	{	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	{
593	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;
594	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));
595	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
596	}	1040	}
597	else	1041	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		1043
600	event ((W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
601	}	1045	}
602	}	1046	}
603		1047
604	static void	1048	static void
605	periodics_reschedule (ev_tstamp diff)	1049	periodics_reschedule (EV_P)
606	{	1050	{
607	int i;	1051	int i;
608		1052
609	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
611	{	1055	{
612	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
613		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
614	if (w->interval)	1060	else if (w->interval)
615	{
616	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;
617
618	if (fabs (diff) >= 1e-4)
619	{
620	ev_periodic_stop (w);
621	ev_periodic_start (w);
622
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}
625	}
626	}	1062	}
627	}
628		1063
629	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
630	time_update_monotonic (void)	1071	time_update_monotonic (EV_P)
631	{	1072	{
632	now = get_clock ();	1073	mn_now = get_clock ();
633		1074
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	1076	{
636	ev_now = now + diff;	1077	ev_rt_now = rtmn_diff + mn_now;
637	return 0;	1078	return 0;
638	}	1079	}
639	else	1080	else
640	{	1081	{
641	now_floor = now;	1082	now_floor = mn_now;
642	ev_now = ev_time ();	1083	ev_rt_now = ev_time ();
643	return 1;	1084	return 1;
644	}	1085	}
645	}	1086	}
646		1087
647	static void	1088	static void
648	time_update (void)	1089	time_update (EV_P)
649	{	1090	{
650	int i;	1091	int i;
651		1092
652	#if EV_USE_MONOTONIC	1093	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	1094	if (expect_true (have_monotonic))
654	{	1095	{
655	if (time_update_monotonic ())	1096	if (time_update_monotonic (EV_A))
656	{	1097	{
657	ev_tstamp odiff = diff;	1098	ev_tstamp odiff = rtmn_diff;
658		1099
659	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 */
660	{	1101	{
661	diff = ev_now - now;	1102	rtmn_diff = ev_rt_now - mn_now;
662		1103
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
664	return; /* all is well */	1105	return; /* all is well */
665		1106
666	ev_now = ev_time ();	1107	ev_rt_now = ev_time ();
667	now = get_clock ();	1108	mn_now = get_clock ();
668	now_floor = now;	1109	now_floor = mn_now;
669	}	1110	}
670		1111
		1112	# if EV_PERIODICS
671	periodics_reschedule (diff - odiff);	1113	periodics_reschedule (EV_A);
		1114	# endif
672	/* 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) */
673	}	1117	}
674	}	1118	}
675	else	1119	else
676	#endif	1120	#endif
677	{	1121	{
678	ev_now = ev_time ();	1122	ev_rt_now = ev_time ();
679		1123
680	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))
681	{	1125	{
		1126	#if EV_PERIODICS
682	periodics_reschedule (ev_now - now);	1127	periodics_reschedule (EV_A);
		1128	#endif
683		1129
684	/* 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 */
685	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
687	}	1133	}
688		1134
689	now = ev_now;	1135	mn_now = ev_rt_now;
690	}	1136	}
691	}	1137	}
692		1138
693	int ev_loop_done;	1139	void
		1140	ev_ref (EV_P)
		1141	{
		1142	++activecnt;
		1143	}
694		1144
		1145	void
		1146	ev_unref (EV_P)
		1147	{
		1148	--activecnt;
		1149	}
		1150
		1151	static int loop_done;
		1152
		1153	void
695	void ev_loop (int flags)	1154	ev_loop (EV_P_ int flags)
696	{	1155	{
697	double block;	1156	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1157	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		1158
700	do	1159	do
701	{	1160	{
702	/* queue check watchers (and execute them) */	1161	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	1162	if (expect_false (preparecnt))
704	{	1163	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	1165	call_pending (EV_A);
707	}	1166	}
708		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
709	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
710	fd_reify ();	1173	fd_reify (EV_A);
711		1174
712	/* calculate blocking time */	1175	/* calculate blocking time */
713		1176
714	/* 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
715	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
718	time_update_monotonic ();	1181	time_update_monotonic (EV_A);
719	else	1182	else
720	#endif	1183	#endif
721	{	1184	{
722	ev_now = ev_time ();	1185	ev_rt_now = ev_time ();
723	now = ev_now;	1186	mn_now = ev_rt_now;
724	}	1187	}
725		1188
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	1190	block = 0.;
728	else	1191	else
729	{	1192	{
730	block = MAX_BLOCKTIME;	1193	block = MAX_BLOCKTIME;
731		1194
732	if (timercnt)	1195	if (timercnt)
733	{	1196	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
735	if (block > to) block = to;	1198	if (block > to) block = to;
736	}	1199	}
737		1200
		1201	#if EV_PERIODICS
738	if (periodiccnt)	1202	if (periodiccnt)
739	{	1203	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
741	if (block > to) block = to;	1205	if (block > to) block = to;
742	}	1206	}
		1207	#endif
743		1208
744	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
745	}	1210	}
746		1211
747	method_poll (block);	1212	method_poll (EV_A_ block);
748		1213
749	/* update ev_now, do magic */	1214	/* update ev_rt_now, do magic */
750	time_update ();	1215	time_update (EV_A);
751		1216
752	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
754	periodics_reify (); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
755		1222
756	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		1226
760	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
761	if (checkcnt)	1228	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		1230
764	call_pending ();	1231	call_pending (EV_A);
765	}	1232	}
766	while (!ev_loop_done);	1233	while (activecnt && !loop_done);
767		1234
768	if (ev_loop_done != 2)	1235	if (loop_done != 2)
769	ev_loop_done = 0;	1236	loop_done = 0;
		1237	}
		1238
		1239	void
		1240	ev_unloop (EV_P_ int how)
		1241	{
		1242	loop_done = how;
770	}	1243	}
771		1244
772	/*****************************************************************************/	1245	/*****************************************************************************/
773		1246
774	static void	1247	inline void
775	wlist_add (WL *head, WL elem)	1248	wlist_add (WL *head, WL elem)
776	{	1249	{
777	elem->next = *head;	1250	elem->next = *head;
778	*head = elem;	1251	*head = elem;
779	}	1252	}
780		1253
781	static void	1254	inline void
782	wlist_del (WL *head, WL elem)	1255	wlist_del (WL *head, WL elem)
783	{	1256	{
784	while (*head)	1257	while (*head)
785	{	1258	{
786	if (*head == elem)	1259	if (*head == elem)
…		…
791		1264
792	head = &(*head)->next;	1265	head = &(*head)->next;
793	}	1266	}
794	}	1267	}
795		1268
796	static void	1269	inline void
797	ev_clear_pending (W w)	1270	ev_clear_pending (EV_P_ W w)
798	{	1271	{
799	if (w->pending)	1272	if (w->pending)
800	{	1273	{
801	pendings [w->pending - 1].w = 0;	1274	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	1275	w->pending = 0;
803	}	1276	}
804	}	1277	}
805		1278
806	static void	1279	inline void
807	ev_start (W w, int active)	1280	ev_start (EV_P_ W w, int active)
808	{	1281	{
		1282	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1283	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1284
809	w->active = active;	1285	w->active = active;
		1286	ev_ref (EV_A);
810	}	1287	}
811		1288
812	static void	1289	inline void
813	ev_stop (W w)	1290	ev_stop (EV_P_ W w)
814	{	1291	{
		1292	ev_unref (EV_A);
815	w->active = 0;	1293	w->active = 0;
816	}	1294	}
817		1295
818	/*****************************************************************************/	1296	/*****************************************************************************/
819		1297
820	void	1298	void
821	ev_io_start (struct ev_io *w)	1299	ev_io_start (EV_P_ struct ev_io *w)
822	{	1300	{
823	int fd = w->fd;	1301	int fd = w->fd;
824		1302
825	if (ev_is_active (w))	1303	if (ev_is_active (w))
826	return;	1304	return;
827		1305
828	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
829		1307
830	ev_start ((W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		1311
834	fd_change (fd);	1312	fd_change (EV_A_ fd);
835	}	1313	}
836		1314
837	void	1315	void
838	ev_io_stop (struct ev_io *w)	1316	ev_io_stop (EV_P_ struct ev_io *w)
839	{	1317	{
840	ev_clear_pending ((W)w);	1318	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
842	return;	1320	return;
843		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
846		1326
847	fd_change (w->fd);	1327	fd_change (EV_A_ w->fd);
848	}	1328	}
849		1329
850	void	1330	void
851	ev_timer_start (struct ev_timer *w)	1331	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1332	{
853	if (ev_is_active (w))	1333	if (ev_is_active (w))
854	return;	1334	return;
855		1335
856	w->at += now;	1336	((WT)w)->at += mn_now;
857		1337
858	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.));
859		1339
860	ev_start ((W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
862	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
864	}
865		1344
		1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1346	}
		1347
866	void	1348	void
867	ev_timer_stop (struct ev_timer *w)	1349	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1350	{
869	ev_clear_pending ((W)w);	1351	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1352	if (!ev_is_active (w))
871	return;	1353	return;
872		1354
		1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1356
873	if (w->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
874	{	1358	{
875	timers [w->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
876	downheap ((WT *)timers, timercnt, w->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
877	}	1361	}
878		1362
879	w->at = w->repeat;	1363	((WT)w)->at -= mn_now;
880		1364
881	ev_stop ((W)w);	1365	ev_stop (EV_A_ (W)w);
882	}	1366	}
883		1367
884	void	1368	void
885	ev_timer_again (struct ev_timer *w)	1369	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1370	{
887	if (ev_is_active (w))	1371	if (ev_is_active (w))
888	{	1372	{
889	if (w->repeat)	1373	if (w->repeat)
890	{	1374	{
891	w->at = now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
893	}	1377	}
894	else	1378	else
895	ev_timer_stop (w);	1379	ev_timer_stop (EV_A_ w);
896	}	1380	}
897	else if (w->repeat)	1381	else if (w->repeat)
898	ev_timer_start (w);	1382	ev_timer_start (EV_A_ w);
899	}	1383	}
900		1384
		1385	#if EV_PERIODICS
901	void	1386	void
902	ev_periodic_start (struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1388	{
904	if (ev_is_active (w))	1389	if (ev_is_active (w))
905	return;	1390	return;
906		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
907	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.));
908
909	/* 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 */
910	if (w->interval)
911	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	}
912		1400
913	ev_start ((W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
915	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
917	}
918		1405
		1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1407	}
		1408
919	void	1409	void
920	ev_periodic_stop (struct ev_periodic *w)	1410	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1411	{
922	ev_clear_pending ((W)w);	1412	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1413	if (!ev_is_active (w))
924	return;	1414	return;
925		1415
		1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1417
926	if (w->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
927	{	1419	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
930	}	1422	}
931		1423
932	ev_stop ((W)w);	1424	ev_stop (EV_A_ (W)w);
933	}	1425	}
934		1426
935	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
936	ev_signal_start (struct ev_signal *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
937	{	1438	{
938	if (ev_is_active (w))	1439	if (ev_is_active (w))
939	return;	1440	return;
940		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
941	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));
942		1516
943	ev_start ((W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1520
947	if (!w->next)	1521	if (!((WL)w)->next)
948	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
949	struct sigaction sa;	1526	struct sigaction sa;
950	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
954	}	1532	}
955	}	1533	}
956		1534
957	void	1535	void
958	ev_signal_stop (struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1537	{
960	ev_clear_pending ((W)w);	1538	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1539	if (!ev_is_active (w))
962	return;	1540	return;
963		1541
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1542	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1543	ev_stop (EV_A_ (W)w);
966		1544
967	if (!signals [w->signum - 1].head)	1545	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1546	signal (w->signum, SIG_DFL);
969	}	1547	}
970		1548
971	void	1549	void
972	ev_idle_start (struct ev_idle *w)	1550	ev_child_start (EV_P_ struct ev_child *w)
973	{	1551	{
		1552	#if EV_MULTIPLICITY
		1553	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1554	#endif
974	if (ev_is_active (w))	1555	if (ev_is_active (w))
975	return;	1556	return;
976		1557
977	ev_start ((W)w, ++idlecnt);
978	array_needsize (idles, idlemax, idlecnt, );
979	idles [idlecnt - 1] = w;
980	}
981
982	void
983	ev_idle_stop (struct ev_idle *w)
984	{
985	ev_clear_pending ((W)w);
986	if (ev_is_active (w))
987	return;
988
989	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);
991	}
992
993	void
994	ev_prepare_start (struct ev_prepare *w)
995	{
996	if (ev_is_active (w))
997	return;
998
999	ev_start ((W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;
1002	}
1003
1004	void
1005	ev_prepare_stop (struct ev_prepare *w)
1006	{
1007	ev_clear_pending ((W)w);
1008	if (ev_is_active (w))
1009	return;
1010
1011	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);
1013	}
1014
1015	void
1016	ev_check_start (struct ev_check *w)
1017	{
1018	if (ev_is_active (w))
1019	return;
1020
1021	ev_start ((W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;
1024	}
1025
1026	void
1027	ev_check_stop (struct ev_check *w)
1028	{
1029	ev_clear_pending ((W)w);
1030	if (ev_is_active (w))
1031	return;
1032
1033	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);
1035	}
1036
1037	void
1038	ev_child_start (struct ev_child *w)
1039	{
1040	if (ev_is_active (w))
1041	return;
1042
1043	ev_start ((W)w, 1);	1558	ev_start (EV_A_ (W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1559	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}	1560	}
1046		1561
1047	void	1562	void
1048	ev_child_stop (struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1049	{	1564	{
1050	ev_clear_pending ((W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1051	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1052	return;	1567	return;
1053		1568
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1570	ev_stop (EV_A_ (W)w);
1056	}	1571	}
1057		1572
1058	/*****************************************************************************/	1573	/*****************************************************************************/
1059		1574
1060	struct ev_once	1575	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1579	void (cb)(int revents, void arg);
1065	void *arg;	1580	void *arg;
1066	};	1581	};
1067		1582
1068	static void	1583	static void
1069	once_cb (struct ev_once *once, int revents)	1584	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1585	{
1071	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1587	void *arg = once->arg;
1073		1588
1074	ev_io_stop (&once->io);	1589	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1591	ev_free (once);
1077		1592
1078	cb (revents, arg);	1593	cb (revents, arg);
1079	}	1594	}
1080		1595
1081	static void	1596	static void
1082	once_cb_io (struct ev_io *w, int revents)	1597	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1598	{
1084	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);
1085	}	1600	}
1086		1601
1087	static void	1602	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1603	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1604	{
1090	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);
1091	}	1606	}
1092		1607
1093	void	1608	void
1094	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)
1095	{	1610	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1097		1612
1098	if (!once)	1613	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1100	else	1615	else
1101	{	1616	{
1102	once->cb = cb;	1617	once->cb = cb;
1103	once->arg = arg;	1618	once->arg = arg;
1104		1619
1105	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1621	if (fd >= 0)
1107	{	1622	{
1108	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1624	ev_io_start (EV_A_ &once->io);
1110	}	1625	}
1111		1626
1112	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1628	if (timeout >= 0.)
1114	{	1629	{
1115	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1631	ev_timer_start (EV_A_ &once->to);
1117	}	1632	}
1118	}	1633	}
1119	}	1634	}
1120		1635
1121	/*****************************************************************************/	1636	#ifdef __cplusplus
1122
1123	#if 0
1124
1125	struct ev_io wio;
1126
1127	static void
1128	sin_cb (struct ev_io *w, int revents)
1129	{
1130	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1131	}	1637	}
1132
1133	static void
1134	ocb (struct ev_timer *w, int revents)
1135	{
1136	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1137	ev_timer_stop (w);
1138	ev_timer_start (w);
1139	}
1140
1141	static void
1142	scb (struct ev_signal *w, int revents)
1143	{
1144	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1145	ev_io_stop (&wio);
1146	ev_io_start (&wio);
1147	}
1148
1149	static void
1150	gcb (struct ev_signal *w, int revents)
1151	{
1152	fprintf (stderr, "generic %x\n", revents);
1153
1154	}
1155
1156	int main (void)
1157	{
1158	ev_init (0);
1159
1160	ev_io_init (&wio, sin_cb, 0, EV_READ);
1161	ev_io_start (&wio);
1162
1163	struct ev_timer t[10000];
1164
1165	#if 0
1166	int i;
1167	for (i = 0; i < 10000; ++i)
1168	{
1169	struct ev_timer *w = t + i;
1170	ev_watcher_init (w, ocb, i);
1171	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1172	ev_timer_start (w);
1173	if (drand48 () < 0.5)
1174	ev_timer_stop (w);
1175	}
1176	#endif	1638	#endif
1177		1639
1178	struct ev_timer t1;
1179	ev_timer_init (&t1, ocb, 5, 10);
1180	ev_timer_start (&t1);
1181
1182	struct ev_signal sig;
1183	ev_signal_init (&sig, scb, SIGQUIT);
1184	ev_signal_start (&sig);
1185
1186	struct ev_check cw;
1187	ev_check_init (&cw, gcb);
1188	ev_check_start (&cw);
1189
1190	struct ev_idle iw;
1191	ev_idle_init (&iw, gcb);
1192	ev_idle_start (&iw);
1193
1194	ev_loop (0);
1195
1196	return 0;
1197	}
1198
1199	#endif
1200
1201
1202
1203

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Comparing libev/ev.c (file contents): Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs. Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC