[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 1.54 by root, Sun Nov 4 00:24:16 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
51	/**/	53	/**/
52		54
…		…
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		62
61	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	65	#endif
64		66
65	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
67	#endif	73	#endif
68		74
69	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
71	#endif	77	#endif
…		…
100	#endif	106	#endif
101		107
102	#define expect_false(expr) expect ((expr) != 0, 0)	108	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	109	#define expect_true(expr) expect ((expr) != 0, 1)
104		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		113
105	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
108		117
109	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
110	ev_tstamp ev_now;
111	int ev_method;
112
113	static int have_monotonic; /* runtime */
114
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118		119
119	/*****************************************************************************/	120	/*****************************************************************************/
120		121
121	ev_tstamp	122	typedef struct
		123	{
		124	struct ev_watcher_list *head;
		125	unsigned char events;
		126	unsigned char reify;
		127	} ANFD;
		128
		129	typedef struct
		130	{
		131	W w;
		132	int events;
		133	} ANPENDING;
		134
		135	#ifdef EV_MULTIPLICITY
		136
		137	struct ev_loop
		138	{
		139	# define VAR(name,decl) decl;
		140	# include "ev_vars.h"
		141	};
		142	# undef VAR
		143	# include "ev_wrap.h"
		144
		145	#else
		146
		147	# define VAR(name,decl) static decl;
		148	# include "ev_vars.h"
		149	# undef VAR
		150
		151	#endif
		152
		153	/*****************************************************************************/
		154
		155	inline ev_tstamp
122	ev_time (void)	156	ev_time (void)
123	{	157	{
124	#if EV_USE_REALTIME	158	#if EV_USE_REALTIME
125	struct timespec ts;	159	struct timespec ts;
126	clock_gettime (CLOCK_REALTIME, &ts);	160	clock_gettime (CLOCK_REALTIME, &ts);
…		…
130	gettimeofday (&tv, 0);	164	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	165	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	166	#endif
133	}	167	}
134		168
135	static ev_tstamp	169	inline ev_tstamp
136	get_clock (void)	170	get_clock (void)
137	{	171	{
138	#if EV_USE_MONOTONIC	172	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	173	if (expect_true (have_monotonic))
140	{	174	{
…		…
143	return ts.tv_sec + ts.tv_nsec * 1e-9;	177	return ts.tv_sec + ts.tv_nsec * 1e-9;
144	}	178	}
145	#endif	179	#endif
146		180
147	return ev_time ();	181	return ev_time ();
		182	}
		183
		184	ev_tstamp
		185	ev_now (EV_P)
		186	{
		187	return rt_now;
148	}	188	}
149		189
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	190	#define array_roundsize(base,n) ((n) \| 4 & ~3)
151		191
152	#define array_needsize(base,cur,cnt,init) \	192	#define array_needsize(base,cur,cnt,init) \
…		…
164	cur = newcnt; \	204	cur = newcnt; \
165	}	205	}
166		206
167	/*****************************************************************************/	207	/*****************************************************************************/
168		208
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
179	static void	209	static void
180	anfds_init (ANFD *base, int count)	210	anfds_init (ANFD *base, int count)
181	{	211	{
182	while (count--)	212	while (count--)
183	{	213	{
…		…
187		217
188	++base;	218	++base;
189	}	219	}
190	}	220	}
191		221
192	typedef struct
193	{
194	W w;
195	int events;
196	} ANPENDING;
197
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void	222	static void
202	event (W w, int events)	223	event (EV_P_ W w, int events)
203	{	224	{
204	if (w->pending)	225	if (w->pending)
205	{	226	{
206	pendings [w->pending - 1].events \|= events;	227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
207	return;	228	return;
208	}	229	}
209		230
210	w->pending = ++pendingcnt;	231	w->pending = ++pendingcnt [ABSPRI (w)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
212	pendings [pendingcnt - 1].w = w;	233	pendings [ABSPRI (w)][w->pending - 1].w = w;
213	pendings [pendingcnt - 1].events = events;	234	pendings [ABSPRI (w)][w->pending - 1].events = events;
214	}	235	}
215		236
216	static void	237	static void
217	queue_events (W *events, int eventcnt, int type)	238	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	239	{
219	int i;	240	int i;
220		241
221	for (i = 0; i < eventcnt; ++i)	242	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	243	event (EV_A_ events [i], type);
223	}	244	}
224		245
225	static void	246	static void
226	fd_event (int fd, int events)	247	fd_event (EV_P_ int fd, int events)
227	{	248	{
228	ANFD *anfd = anfds + fd;	249	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	250	struct ev_io *w;
230		251
231	for (w = anfd->head; w; w = w->next)	252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	253	{
233	int ev = w->events & events;	254	int ev = w->events & events;
234		255
235	if (ev)	256	if (ev)
236	event ((W)w, ev);	257	event (EV_A_ (W)w, ev);
237	}	258	}
238	}	259	}
239		260
240	/*****************************************************************************/	261	/*****************************************************************************/
241		262
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	263	static void
246	fd_reify (void)	264	fd_reify (EV_P)
247	{	265	{
248	int i;	266	int i;
249		267
250	for (i = 0; i < fdchangecnt; ++i)	268	for (i = 0; i < fdchangecnt; ++i)
251	{	269	{
…		…
253	ANFD *anfd = anfds + fd;	271	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	272	struct ev_io *w;
255		273
256	int events = 0;	274	int events = 0;
257		275
258	for (w = anfd->head; w; w = w->next)	276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	277	events \|= w->events;
260		278
261	anfd->reify = 0;	279	anfd->reify = 0;
262		280
263	if (anfd->events != events)	281	if (anfd->events != events)
264	{	282	{
265	method_modify (fd, anfd->events, events);	283	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	284	anfd->events = events;
267	}	285	}
268	}	286	}
269		287
270	fdchangecnt = 0;	288	fdchangecnt = 0;
271	}	289	}
272		290
273	static void	291	static void
274	fd_change (int fd)	292	fd_change (EV_P_ int fd)
275	{	293	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	294	if (anfds [fd].reify \|\| fdchangecnt < 0)
277	return;	295	return;
278		296
279	anfds [fd].reify = 1;	297	anfds [fd].reify = 1;
…		…
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
283	fdchanges [fdchangecnt - 1] = fd;	301	fdchanges [fdchangecnt - 1] = fd;
284	}	302	}
285		303
286	static void	304	static void
287	fd_kill (int fd)	305	fd_kill (EV_P_ int fd)
288	{	306	{
289	struct ev_io *w;	307	struct ev_io *w;
290		308
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	309	while ((w = (struct ev_io *)anfds [fd].head))
293	{	310	{
294	ev_io_stop (w);	311	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	313	}
297	}	314	}
298		315
299	/* called on EBADF to verify fds */	316	/* called on EBADF to verify fds */
300	static void	317	static void
301	fd_ebadf (void)	318	fd_ebadf (EV_P)
302	{	319	{
303	int fd;	320	int fd;
304		321
305	for (fd = 0; fd < anfdmax; ++fd)	322	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	323	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
308	fd_kill (fd);	325	fd_kill (EV_A_ fd);
309	}	326	}
310		327
311	/* called on ENOMEM in select/poll to kill some fds and retry */	328	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	329	static void
313	fd_enomem (void)	330	fd_enomem (EV_P)
314	{	331	{
315	int fd = anfdmax;	332	int fd = anfdmax;
316		333
317	while (fd--)	334	while (fd--)
318	if (anfds [fd].events)	335	if (anfds [fd].events)
319	{	336	{
320	close (fd);	337	close (fd);
321	fd_kill (fd);	338	fd_kill (EV_A_ fd);
322	return;	339	return;
323	}	340	}
324	}	341	}
325		342
326	/*****************************************************************************/	343	/*****************************************************************************/
327		344
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	345	static void
335	upheap (WT *timers, int k)	346	upheap (WT *heap, int k)
336	{	347	{
337	WT w = timers [k];	348	WT w = heap [k];
338		349
339	while (k && timers [k >> 1]->at > w->at)	350	while (k && heap [k >> 1]->at > w->at)
340	{	351	{
341	timers [k] = timers [k >> 1];	352	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	353	heap [k]->active = k + 1;
343	k >>= 1;	354	k >>= 1;
344	}	355	}
345		356
346	timers [k] = w;	357	heap [k] = w;
347	timers [k]->active = k + 1;	358	heap [k]->active = k + 1;
348		359
349	}	360	}
350		361
351	static void	362	static void
352	downheap (WT *timers, int N, int k)	363	downheap (WT *heap, int N, int k)
353	{	364	{
354	WT w = timers [k];	365	WT w = heap [k];
355		366
356	while (k < (N >> 1))	367	while (k < (N >> 1))
357	{	368	{
358	int j = k << 1;	369	int j = k << 1;
359		370
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	371	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	372	++j;
362		373
363	if (w->at <= timers [j]->at)	374	if (w->at <= heap [j]->at)
364	break;	375	break;
365		376
366	timers [k] = timers [j];	377	heap [k] = heap [j];
367	timers [k]->active = k + 1;	378	heap [k]->active = k + 1;
368	k = j;	379	k = j;
369	}	380	}
370		381
371	timers [k] = w;	382	heap [k] = w;
372	timers [k]->active = k + 1;	383	heap [k]->active = k + 1;
373	}	384	}
374		385
375	/*****************************************************************************/	386	/*****************************************************************************/
376		387
377	typedef struct	388	typedef struct
378	{	389	{
379	struct ev_signal *head;	390	struct ev_watcher_list *head;
380	sig_atomic_t volatile gotsig;	391	sig_atomic_t volatile gotsig;
381	} ANSIG;	392	} ANSIG;
382		393
383	static ANSIG *signals;	394	static ANSIG *signals;
384	static int signalmax;	395	static int signalmax;
385		396
386	static int sigpipe [2];	397	static int sigpipe [2];
387	static sig_atomic_t volatile gotsig;	398	static sig_atomic_t volatile gotsig;
388	static struct ev_io sigev;
389		399
390	static void	400	static void
391	signals_init (ANSIG *base, int count)	401	signals_init (ANSIG *base, int count)
392	{	402	{
393	while (count--)	403	while (count--)
…		…
404	{	414	{
405	signals [signum - 1].gotsig = 1;	415	signals [signum - 1].gotsig = 1;
406		416
407	if (!gotsig)	417	if (!gotsig)
408	{	418	{
		419	int old_errno = errno;
409	gotsig = 1;	420	gotsig = 1;
410	write (sigpipe [1], &signum, 1);	421	write (sigpipe [1], &signum, 1);
		422	errno = old_errno;
411	}	423	}
412	}	424	}
413		425
414	static void	426	static void
415	sigcb (struct ev_io *iow, int revents)	427	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	428	{
417	struct ev_signal *w;	429	struct ev_watcher_list *w;
418	int signum;	430	int signum;
419		431
420	read (sigpipe [0], &revents, 1);	432	read (sigpipe [0], &revents, 1);
421	gotsig = 0;	433	gotsig = 0;
422		434
…		…
424	if (signals [signum].gotsig)	436	if (signals [signum].gotsig)
425	{	437	{
426	signals [signum].gotsig = 0;	438	signals [signum].gotsig = 0;
427		439
428	for (w = signals [signum].head; w; w = w->next)	440	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);	441	event (EV_A_ (W)w, EV_SIGNAL);
430	}	442	}
431	}	443	}
432		444
433	static void	445	static void
434	siginit (void)	446	siginit (EV_P)
435	{	447	{
		448	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		451
439	/* rather than sort out wether we really need nb, set it */	452	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		455	#endif
442		456
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	457	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	458	ev_io_start (EV_A_ &sigev);
		459	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	460	}
446		461
447	/*****************************************************************************/	462	/*****************************************************************************/
448		463
449	static struct ev_idle **idles;	464	#ifndef WIN32
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];
461	static struct ev_signal childev;
462		465
463	#ifndef WCONTINUED	466	#ifndef WCONTINUED
464	# define WCONTINUED 0	467	# define WCONTINUED 0
465	#endif	468	#endif
466		469
467	static void	470	static void
468	childcb (struct ev_signal *sw, int revents)	471	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	472	{
470	struct ev_child *w;	473	struct ev_child *w;
		474
		475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		476	if (w->pid == pid \|\| !w->pid)
		477	{
		478	w->priority = sw->priority; /* need to do it now */
		479	w->rpid = pid;
		480	w->rstatus = status;
		481	event (EV_A_ (W)w, EV_CHILD);
		482	}
		483	}
		484
		485	static void
		486	childcb (EV_P_ struct ev_signal *sw, int revents)
		487	{
471	int pid, status;	488	int pid, status;
472		489
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	491	{
475	if (w->pid == pid \|\| !w->pid)	492	/* make sure we are called again until all childs have been reaped */
476	{	493	event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	494
478	event ((W)w, EV_CHILD);	495	child_reap (EV_A_ sw, pid, pid, status);
479	}	496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		497	}
480	}	498	}
		499
		500	#endif
481		501
482	/*****************************************************************************/	502	/*****************************************************************************/
483		503
		504	#if EV_USE_KQUEUE
		505	# include "ev_kqueue.c"
		506	#endif
484	#if EV_USE_EPOLL	507	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	508	# include "ev_epoll.c"
486	#endif	509	#endif
487	#if EV_USE_POLL	510	#if EV_USEV_POLL
488	# include "ev_poll.c"	511	# include "ev_poll.c"
489	#endif	512	#endif
490	#if EV_USE_SELECT	513	#if EV_USE_SELECT
491	# include "ev_select.c"	514	# include "ev_select.c"
492	#endif	515	#endif
…		…
501	ev_version_minor (void)	524	ev_version_minor (void)
502	{	525	{
503	return EV_VERSION_MINOR;	526	return EV_VERSION_MINOR;
504	}	527	}
505		528
506	/* return true if we are running with elevated privileges and ignore env variables */	529	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	530	static int
508	enable_secure ()	531	enable_secure (void)
509	{	532	{
		533	#ifdef WIN32
		534	return 0;
		535	#else
510	return getuid () != geteuid ()	536	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	537	\|\| getgid () != getegid ();
		538	#endif
512	}	539	}
513		540
514	int ev_init (int methods)	541	int
		542	ev_method (EV_P)
515	{	543	{
		544	return method;
		545	}
		546
		547	static void
		548	loop_init (EV_P_ int methods)
		549	{
516	if (!ev_method)	550	if (!method)
517	{	551	{
518	#if EV_USE_MONOTONIC	552	#if EV_USE_MONOTONIC
519	{	553	{
520	struct timespec ts;	554	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	556	have_monotonic = 1;
523	}	557	}
524	#endif	558	#endif
525		559
526	ev_now = ev_time ();	560	rt_now = ev_time ();
527	now = get_clock ();	561	mn_now = get_clock ();
528	now_floor = now;	562	now_floor = mn_now;
529	diff = ev_now - now;	563	rtmn_diff = rt_now - mn_now;
530		564
531	if (pipe (sigpipe))	565	if (pipe (sigpipe))
532	return 0;	566	return 0;
533		567
534	if (methods == EVMETHOD_AUTO)	568	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	569	if (!enable_secure () && getenv ("LIBmethodS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	570	methods = atoi (getenv ("LIBmethodS"));
537	else	571	else
538	methods = EVMETHOD_ANY;	572	methods = EVMETHOD_ANY;
539		573
540	ev_method = 0;	574	method = 0;
		575	#if EV_USE_KQUEUE
		576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		577	#endif
541	#if EV_USE_EPOLL	578	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	580	#endif
544	#if EV_USE_POLL	581	#if EV_USEV_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	583	#endif
547	#if EV_USE_SELECT	584	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	586	#endif
550		587
551	if (ev_method)	588	if (method)
552	{	589	{
553	ev_watcher_init (&sigev, sigcb);	590	ev_watcher_init (&sigev, sigcb);
		591	ev_set_priority (&sigev, EV_MAXPRI);
554	siginit ();	592	siginit (EV_A);
555		593
		594	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	595	ev_signal_init (&childev, childcb, SIGCHLD);
		596	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	597	ev_signal_start (EV_A_ &childev);
		598	ev_unref (EV_A); /* child watcher should not keep loop alive */
		599	#endif
558	}	600	}
559	}	601	}
560		602
561	return ev_method;	603	return method;
562	}	604	}
		605
		606	#ifdef EV_MULTIPLICITY
		607
		608	struct ev_loop *
		609	ev_loop_new (int methods)
		610	{
		611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
		612
		613	loop_init (EV_A_ methods);
		614
		615	return loop;
		616	}
		617
		618	void
		619	ev_loop_delete (EV_P)
		620	{
		621	/TODO/
		622	free (loop);
		623	}
		624
		625	#else
		626
		627	int
		628	ev_init (int methods)
		629	{
		630	loop_init ();
		631	}
		632
		633	#endif
563		634
564	/*****************************************************************************/	635	/*****************************************************************************/
565		636
566	void	637	void
567	ev_fork_prepare (void)	638	ev_fork_prepare (void)
…		…
576	}	647	}
577		648
578	void	649	void
579	ev_fork_child (void)	650	ev_fork_child (void)
580	{	651	{
		652	/TODO/
		653	#if !EV_MULTIPLICITY
581	#if EV_USE_EPOLL	654	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)	655	if (method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();	656	epoll_postfork_child (EV_A);
584	#endif	657	#endif
585		658
586	ev_io_stop (&sigev);	659	ev_io_stop (EV_A_ &sigev);
587	close (sigpipe [0]);	660	close (sigpipe [0]);
588	close (sigpipe [1]);	661	close (sigpipe [1]);
589	pipe (sigpipe);	662	pipe (sigpipe);
590	siginit ();	663	siginit (EV_A);
		664	#endif
591	}	665	}
592		666
593	/*****************************************************************************/	667	/*****************************************************************************/
594		668
595	static void	669	static void
596	call_pending (void)	670	call_pending (EV_P)
597	{	671	{
		672	int pri;
		673
		674	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	675	while (pendingcnt [pri])
599	{	676	{
600	ANPENDING *p = pendings + --pendingcnt;	677	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		678
602	if (p->w)	679	if (p->w)
603	{	680	{
604	p->w->pending = 0;	681	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	682	p->w->cb (EV_A_ p->w, p->events);
606	}	683	}
607	}	684	}
608	}	685	}
609		686
610	static void	687	static void
611	timers_reify (void)	688	timers_reify (EV_P)
612	{	689	{
613	while (timercnt && timers [0]->at <= now)	690	while (timercnt && timers [0]->at <= mn_now)
614	{	691	{
615	struct ev_timer *w = timers [0];	692	struct ev_timer *w = timers [0];
616		693
617	/* first reschedule or stop timer */	694	/* first reschedule or stop timer */
618	if (w->repeat)	695	if (w->repeat)
619	{	696	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	697	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
621	w->at = now + w->repeat;	698	w->at = mn_now + w->repeat;
622	downheap ((WT *)timers, timercnt, 0);	699	downheap ((WT *)timers, timercnt, 0);
623	}	700	}
624	else	701	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		703
627	event ((W)w, EV_TIMEOUT);	704	event (EV_A_ (W)w, EV_TIMEOUT);
628	}	705	}
629	}	706	}
630		707
631	static void	708	static void
632	periodics_reify (void)	709	periodics_reify (EV_P)
633	{	710	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	711	while (periodiccnt && periodics [0]->at <= rt_now)
635	{	712	{
636	struct ev_periodic *w = periodics [0];	713	struct ev_periodic *w = periodics [0];
637		714
638	/* first reschedule or stop timer */	715	/* first reschedule or stop timer */
639	if (w->interval)	716	if (w->interval)
640	{	717	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	718	w->at += floor ((rt_now - 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));	719	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
643	downheap ((WT *)periodics, periodiccnt, 0);	720	downheap ((WT *)periodics, periodiccnt, 0);
644	}	721	}
645	else	722	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		724
648	event ((W)w, EV_PERIODIC);	725	event (EV_A_ (W)w, EV_PERIODIC);
649	}	726	}
650	}	727	}
651		728
652	static void	729	static void
653	periodics_reschedule (ev_tstamp diff)	730	periodics_reschedule (EV_P)
654	{	731	{
655	int i;	732	int i;
656		733
657	/* adjust periodics after time jump */	734	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	735	for (i = 0; i < periodiccnt; ++i)
659	{	736	{
660	struct ev_periodic *w = periodics [i];	737	struct ev_periodic *w = periodics [i];
661		738
662	if (w->interval)	739	if (w->interval)
663	{	740	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	741	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
665		742
666	if (fabs (diff) >= 1e-4)	743	if (fabs (diff) >= 1e-4)
667	{	744	{
668	ev_periodic_stop (w);	745	ev_periodic_stop (EV_A_ w);
669	ev_periodic_start (w);	746	ev_periodic_start (EV_A_ w);
670		747
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */	748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}	749	}
673	}	750	}
674	}	751	}
675	}	752	}
676		753
677	static int	754	inline int
678	time_update_monotonic (void)	755	time_update_monotonic (EV_P)
679	{	756	{
680	now = get_clock ();	757	mn_now = get_clock ();
681		758
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	759	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	760	{
684	ev_now = now + diff;	761	rt_now = rtmn_diff + mn_now;
685	return 0;	762	return 0;
686	}	763	}
687	else	764	else
688	{	765	{
689	now_floor = now;	766	now_floor = mn_now;
690	ev_now = ev_time ();	767	rt_now = ev_time ();
691	return 1;	768	return 1;
692	}	769	}
693	}	770	}
694		771
695	static void	772	static void
696	time_update (void)	773	time_update (EV_P)
697	{	774	{
698	int i;	775	int i;
699		776
700	#if EV_USE_MONOTONIC	777	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	778	if (expect_true (have_monotonic))
702	{	779	{
703	if (time_update_monotonic ())	780	if (time_update_monotonic (EV_A))
704	{	781	{
705	ev_tstamp odiff = diff;	782	ev_tstamp odiff = rtmn_diff;
706		783
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	784	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	785	{
709	diff = ev_now - now;	786	rtmn_diff = rt_now - mn_now;
710		787
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	788	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	789	return; /* all is well */
713		790
714	ev_now = ev_time ();	791	rt_now = ev_time ();
715	now = get_clock ();	792	mn_now = get_clock ();
716	now_floor = now;	793	now_floor = mn_now;
717	}	794	}
718		795
719	periodics_reschedule (diff - odiff);	796	periodics_reschedule (EV_A);
720	/* no timer adjustment, as the monotonic clock doesn't jump */	797	/* no timer adjustment, as the monotonic clock doesn't jump */
		798	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
721	}	799	}
722	}	800	}
723	else	801	else
724	#endif	802	#endif
725	{	803	{
726	ev_now = ev_time ();	804	rt_now = ev_time ();
727		805
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	806	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	807	{
730	periodics_reschedule (ev_now - now);	808	periodics_reschedule (EV_A);
731		809
732	/* adjust timers. this is easy, as the offset is the same for all */	810	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	811	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	812	timers [i]->at += rt_now - mn_now;
735	}	813	}
736		814
737	now = ev_now;	815	mn_now = rt_now;
738	}	816	}
739	}	817	}
740		818
741	int ev_loop_done;	819	void
		820	ev_ref (EV_P)
		821	{
		822	++activecnt;
		823	}
742		824
		825	void
		826	ev_unref (EV_P)
		827	{
		828	--activecnt;
		829	}
		830
		831	static int loop_done;
		832
		833	void
743	void ev_loop (int flags)	834	ev_loop (EV_P_ int flags)
744	{	835	{
745	double block;	836	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	837	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		838
748	do	839	do
749	{	840	{
750	/* queue check watchers (and execute them) */	841	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	842	if (expect_false (preparecnt))
752	{	843	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	845	call_pending (EV_A);
755	}	846	}
756		847
757	/* update fd-related kernel structures */	848	/* update fd-related kernel structures */
758	fd_reify ();	849	fd_reify (EV_A);
759		850
760	/* calculate blocking time */	851	/* calculate blocking time */
761		852
762	/* we only need this for !monotonic clockor timers, but as we basically	853	/* we only need this for !monotonic clockor timers, but as we basically
763	always have timers, we just calculate it always */	854	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	855	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	856	if (expect_true (have_monotonic))
766	time_update_monotonic ();	857	time_update_monotonic (EV_A);
767	else	858	else
768	#endif	859	#endif
769	{	860	{
770	ev_now = ev_time ();	861	rt_now = ev_time ();
771	now = ev_now;	862	mn_now = rt_now;
772	}	863	}
773		864
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	865	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	866	block = 0.;
776	else	867	else
777	{	868	{
778	block = MAX_BLOCKTIME;	869	block = MAX_BLOCKTIME;
779		870
780	if (timercnt)	871	if (timercnt)
781	{	872	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
783	if (block > to) block = to;	874	if (block > to) block = to;
784	}	875	}
785		876
786	if (periodiccnt)	877	if (periodiccnt)
787	{	878	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
789	if (block > to) block = to;	880	if (block > to) block = to;
790	}	881	}
791		882
792	if (block < 0.) block = 0.;	883	if (block < 0.) block = 0.;
793	}	884	}
794		885
795	method_poll (block);	886	method_poll (EV_A_ block);
796		887
797	/* update ev_now, do magic */	888	/* update rt_now, do magic */
798	time_update ();	889	time_update (EV_A);
799		890
800	/* queue pending timers and reschedule them */	891	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	892	timers_reify (EV_A); /* relative timers called last */
802	periodics_reify (); /* absolute timers called first */	893	periodics_reify (EV_A); /* absolute timers called first */
803		894
804	/* queue idle watchers unless io or timers are pending */	895	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	896	if (!pendingcnt)
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		898
808	/* queue check watchers, to be executed first */	899	/* queue check watchers, to be executed first */
809	if (checkcnt)	900	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		902
812	call_pending ();	903	call_pending (EV_A);
813	}	904	}
814	while (!ev_loop_done);	905	while (activecnt && !loop_done);
815		906
816	if (ev_loop_done != 2)	907	if (loop_done != 2)
817	ev_loop_done = 0;	908	loop_done = 0;
		909	}
		910
		911	void
		912	ev_unloop (EV_P_ int how)
		913	{
		914	loop_done = how;
818	}	915	}
819		916
820	/*****************************************************************************/	917	/*****************************************************************************/
821		918
822	static void	919	inline void
823	wlist_add (WL *head, WL elem)	920	wlist_add (WL *head, WL elem)
824	{	921	{
825	elem->next = *head;	922	elem->next = *head;
826	*head = elem;	923	*head = elem;
827	}	924	}
828		925
829	static void	926	inline void
830	wlist_del (WL *head, WL elem)	927	wlist_del (WL *head, WL elem)
831	{	928	{
832	while (*head)	929	while (*head)
833	{	930	{
834	if (*head == elem)	931	if (*head == elem)
…		…
839		936
840	head = &(*head)->next;	937	head = &(*head)->next;
841	}	938	}
842	}	939	}
843		940
844	static void	941	inline void
845	ev_clear_pending (W w)	942	ev_clear_pending (EV_P_ W w)
846	{	943	{
847	if (w->pending)	944	if (w->pending)
848	{	945	{
849	pendings [w->pending - 1].w = 0;	946	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	947	w->pending = 0;
851	}	948	}
852	}	949	}
853		950
854	static void	951	inline void
855	ev_start (W w, int active)	952	ev_start (EV_P_ W w, int active)
856	{	953	{
		954	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		955	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		956
857	w->active = active;	957	w->active = active;
		958	ev_ref (EV_A);
858	}	959	}
859		960
860	static void	961	inline void
861	ev_stop (W w)	962	ev_stop (EV_P_ W w)
862	{	963	{
		964	ev_unref (EV_A);
863	w->active = 0;	965	w->active = 0;
864	}	966	}
865		967
866	/*****************************************************************************/	968	/*****************************************************************************/
867		969
868	void	970	void
869	ev_io_start (struct ev_io *w)	971	ev_io_start (EV_P_ struct ev_io *w)
870	{	972	{
871	int fd = w->fd;	973	int fd = w->fd;
872		974
873	if (ev_is_active (w))	975	if (ev_is_active (w))
874	return;	976	return;
875		977
876	assert (("ev_io_start called with negative fd", fd >= 0));	978	assert (("ev_io_start called with negative fd", fd >= 0));
877		979
878	ev_start ((W)w, 1);	980	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	982	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		983
882	fd_change (fd);	984	fd_change (EV_A_ fd);
883	}	985	}
884		986
885	void	987	void
886	ev_io_stop (struct ev_io *w)	988	ev_io_stop (EV_P_ struct ev_io *w)
887	{	989	{
888	ev_clear_pending ((W)w);	990	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	991	if (!ev_is_active (w))
890	return;	992	return;
891		993
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	994	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	995	ev_stop (EV_A_ (W)w);
894		996
895	fd_change (w->fd);	997	fd_change (EV_A_ w->fd);
896	}	998	}
897		999
898	void	1000	void
899	ev_timer_start (struct ev_timer *w)	1001	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1002	{
901	if (ev_is_active (w))	1003	if (ev_is_active (w))
902	return;	1004	return;
903		1005
904	w->at += now;	1006	w->at += mn_now;
905		1007
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1008	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1009
908	ev_start ((W)w, ++timercnt);	1010	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1011	array_needsize (timers, timermax, timercnt, );
910	timers [timercnt - 1] = w;	1012	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1013	upheap ((WT *)timers, timercnt - 1);
912	}	1014	}
913		1015
914	void	1016	void
915	ev_timer_stop (struct ev_timer *w)	1017	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1018	{
917	ev_clear_pending ((W)w);	1019	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1020	if (!ev_is_active (w))
919	return;	1021	return;
920		1022
921	if (w->active < timercnt--)	1023	if (w->active < timercnt--)
922	{	1024	{
…		…
924	downheap ((WT *)timers, timercnt, w->active - 1);	1026	downheap ((WT *)timers, timercnt, w->active - 1);
925	}	1027	}
926		1028
927	w->at = w->repeat;	1029	w->at = w->repeat;
928		1030
929	ev_stop ((W)w);	1031	ev_stop (EV_A_ (W)w);
930	}	1032	}
931		1033
932	void	1034	void
933	ev_timer_again (struct ev_timer *w)	1035	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1036	{
935	if (ev_is_active (w))	1037	if (ev_is_active (w))
936	{	1038	{
937	if (w->repeat)	1039	if (w->repeat)
938	{	1040	{
939	w->at = now + w->repeat;	1041	w->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1042	downheap ((WT *)timers, timercnt, w->active - 1);
941	}	1043	}
942	else	1044	else
943	ev_timer_stop (w);	1045	ev_timer_stop (EV_A_ w);
944	}	1046	}
945	else if (w->repeat)	1047	else if (w->repeat)
946	ev_timer_start (w);	1048	ev_timer_start (EV_A_ w);
947	}	1049	}
948		1050
949	void	1051	void
950	ev_periodic_start (struct ev_periodic *w)	1052	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1053	{
952	if (ev_is_active (w))	1054	if (ev_is_active (w))
953	return;	1055	return;
954		1056
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1057	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
956		1058
957	/* this formula differs from the one in periodic_reify because we do not always round up */	1059	/* this formula differs from the one in periodic_reify because we do not always round up */
958	if (w->interval)	1060	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
960		1062
961	ev_start ((W)w, ++periodiccnt);	1063	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1064	array_needsize (periodics, periodicmax, periodiccnt, );
963	periodics [periodiccnt - 1] = w;	1065	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1066	upheap ((WT *)periodics, periodiccnt - 1);
965	}	1067	}
966		1068
967	void	1069	void
968	ev_periodic_stop (struct ev_periodic *w)	1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1071	{
970	ev_clear_pending ((W)w);	1072	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1073	if (!ev_is_active (w))
972	return;	1074	return;
973		1075
974	if (w->active < periodiccnt--)	1076	if (w->active < periodiccnt--)
975	{	1077	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1078	periodics [w->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);
978	}	1080	}
979		1081
980	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
981	}	1083	}
982		1084
		1085	#ifndef SA_RESTART
		1086	# define SA_RESTART 0
		1087	#endif
		1088
983	void	1089	void
984	ev_signal_start (struct ev_signal *w)	1090	ev_signal_start (EV_P_ struct ev_signal *w)
985	{	1091	{
986	if (ev_is_active (w))	1092	if (ev_is_active (w))
987	return;	1093	return;
988		1094
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1095	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1096
991	ev_start ((W)w, 1);	1097	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1098	array_needsize (signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1100
995	if (!w->next)	1101	if (!w->next)
996	{	1102	{
997	struct sigaction sa;	1103	struct sigaction sa;
998	sa.sa_handler = sighandler;	1104	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1105	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1107	sigaction (w->signum, &sa, 0);
1002	}	1108	}
1003	}	1109	}
1004		1110
1005	void	1111	void
1006	ev_signal_stop (struct ev_signal *w)	1112	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1113	{
1008	ev_clear_pending ((W)w);	1114	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1115	if (!ev_is_active (w))
1010	return;	1116	return;
1011		1117
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1118	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1119	ev_stop (EV_A_ (W)w);
1014		1120
1015	if (!signals [w->signum - 1].head)	1121	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1122	signal (w->signum, SIG_DFL);
1017	}	1123	}
1018		1124
1019	void	1125	void
1020	ev_idle_start (struct ev_idle *w)	1126	ev_idle_start (EV_P_ struct ev_idle *w)
1021	{	1127	{
1022	if (ev_is_active (w))	1128	if (ev_is_active (w))
1023	return;	1129	return;
1024		1130
1025	ev_start ((W)w, ++idlecnt);	1131	ev_start (EV_A_ (W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );	1132	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;	1133	idles [idlecnt - 1] = w;
1028	}	1134	}
1029		1135
1030	void	1136	void
1031	ev_idle_stop (struct ev_idle *w)	1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1032	{	1138	{
1033	ev_clear_pending ((W)w);	1139	ev_clear_pending (EV_A_ (W)w);
1034	if (ev_is_active (w))	1140	if (ev_is_active (w))
1035	return;	1141	return;
1036		1142
1037	idles [w->active - 1] = idles [--idlecnt];	1143	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);	1144	ev_stop (EV_A_ (W)w);
1039	}	1145	}
1040		1146
1041	void	1147	void
1042	ev_prepare_start (struct ev_prepare *w)	1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1043	{	1149	{
1044	if (ev_is_active (w))	1150	if (ev_is_active (w))
1045	return;	1151	return;
1046		1152
1047	ev_start ((W)w, ++preparecnt);	1153	ev_start (EV_A_ (W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );	1154	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;	1155	prepares [preparecnt - 1] = w;
1050	}	1156	}
1051		1157
1052	void	1158	void
1053	ev_prepare_stop (struct ev_prepare *w)	1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1054	{	1160	{
1055	ev_clear_pending ((W)w);	1161	ev_clear_pending (EV_A_ (W)w);
1056	if (ev_is_active (w))	1162	if (ev_is_active (w))
1057	return;	1163	return;
1058		1164
1059	prepares [w->active - 1] = prepares [--preparecnt];	1165	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);	1166	ev_stop (EV_A_ (W)w);
1061	}	1167	}
1062		1168
1063	void	1169	void
1064	ev_check_start (struct ev_check *w)	1170	ev_check_start (EV_P_ struct ev_check *w)
1065	{	1171	{
1066	if (ev_is_active (w))	1172	if (ev_is_active (w))
1067	return;	1173	return;
1068		1174
1069	ev_start ((W)w, ++checkcnt);	1175	ev_start (EV_A_ (W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );	1176	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;	1177	checks [checkcnt - 1] = w;
1072	}	1178	}
1073		1179
1074	void	1180	void
1075	ev_check_stop (struct ev_check *w)	1181	ev_check_stop (EV_P_ struct ev_check *w)
1076	{	1182	{
1077	ev_clear_pending ((W)w);	1183	ev_clear_pending (EV_A_ (W)w);
1078	if (ev_is_active (w))	1184	if (ev_is_active (w))
1079	return;	1185	return;
1080		1186
1081	checks [w->active - 1] = checks [--checkcnt];	1187	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);	1188	ev_stop (EV_A_ (W)w);
1083	}	1189	}
1084		1190
1085	void	1191	void
1086	ev_child_start (struct ev_child *w)	1192	ev_child_start (EV_P_ struct ev_child *w)
1087	{	1193	{
1088	if (ev_is_active (w))	1194	if (ev_is_active (w))
1089	return;	1195	return;
1090		1196
1091	ev_start ((W)w, 1);	1197	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1199	}
1094		1200
1095	void	1201	void
1096	ev_child_stop (struct ev_child *w)	1202	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1203	{
1098	ev_clear_pending ((W)w);	1204	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1205	if (ev_is_active (w))
1100	return;	1206	return;
1101		1207
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1208	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1209	ev_stop (EV_A_ (W)w);
1104	}	1210	}
1105		1211
1106	/*****************************************************************************/	1212	/*****************************************************************************/
1107		1213
1108	struct ev_once	1214	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1218	void (cb)(int revents, void arg);
1113	void *arg;	1219	void *arg;
1114	};	1220	};
1115		1221
1116	static void	1222	static void
1117	once_cb (struct ev_once *once, int revents)	1223	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1224	{
1119	void (cb)(int revents, void arg) = once->cb;	1225	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1226	void *arg = once->arg;
1121		1227
1122	ev_io_stop (&once->io);	1228	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1229	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1230	free (once);
1125		1231
1126	cb (revents, arg);	1232	cb (revents, arg);
1127	}	1233	}
1128		1234
1129	static void	1235	static void
1130	once_cb_io (struct ev_io *w, int revents)	1236	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1237	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1238	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1239	}
1134		1240
1135	static void	1241	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1242	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1243	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1244	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1245	}
1140		1246
1141	void	1247	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1248	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1249	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1250	struct ev_once *once = malloc (sizeof (struct ev_once));
1145		1251
1146	if (!once)	1252	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1152		1258
1153	ev_watcher_init (&once->io, once_cb_io);	1259	ev_watcher_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1260	if (fd >= 0)
1155	{	1261	{
1156	ev_io_set (&once->io, fd, events);	1262	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1263	ev_io_start (EV_A_ &once->io);
1158	}	1264	}
1159		1265
1160	ev_watcher_init (&once->to, once_cb_to);	1266	ev_watcher_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1267	if (timeout >= 0.)
1162	{	1268	{
1163	ev_timer_set (&once->to, timeout, 0.);	1269	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1270	ev_timer_start (EV_A_ &once->to);
1165	}	1271	}
1166	}	1272	}
1167	}	1273	}
1168		1274
1169	/*****************************************************************************/	1275	/*****************************************************************************/

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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 1.54 by root, Sun Nov 4 00:24:16 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC