[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 1.55 by root, Sun Nov 4 00:39:24 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
		63	#ifndef EV_USEV_POLL
		64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
		65	#endif
		66
61	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
62	# 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
63	#endif	73	#endif
64		74
65	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
67	#endif	77	#endif
…		…
96	#endif	106	#endif
97		107
98	#define expect_false(expr) expect ((expr) != 0, 0)	108	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	109	#define expect_true(expr) expect ((expr) != 0, 1)
100		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		113
101	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
104		117
105	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
106	ev_tstamp ev_now;
107	int ev_method;
108
109	static int have_monotonic; /* runtime */
110
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114		119
115	/*****************************************************************************/	120	/*****************************************************************************/
116		121
117	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	#if 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
118	ev_time (void)	156	ev_time (void)
119	{	157	{
120	#if EV_USE_REALTIME	158	#if EV_USE_REALTIME
121	struct timespec ts;	159	struct timespec ts;
122	clock_gettime (CLOCK_REALTIME, &ts);	160	clock_gettime (CLOCK_REALTIME, &ts);
…		…
126	gettimeofday (&tv, 0);	164	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	165	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	166	#endif
129	}	167	}
130		168
131	static ev_tstamp	169	inline ev_tstamp
132	get_clock (void)	170	get_clock (void)
133	{	171	{
134	#if EV_USE_MONOTONIC	172	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	173	if (expect_true (have_monotonic))
136	{	174	{
…		…
139	return ts.tv_sec + ts.tv_nsec * 1e-9;	177	return ts.tv_sec + ts.tv_nsec * 1e-9;
140	}	178	}
141	#endif	179	#endif
142		180
143	return ev_time ();	181	return ev_time ();
		182	}
		183
		184	ev_tstamp
		185	ev_now (EV_P)
		186	{
		187	return rt_now;
144	}	188	}
145		189
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	190	#define array_roundsize(base,n) ((n) \| 4 & ~3)
147		191
148	#define array_needsize(base,cur,cnt,init) \	192	#define array_needsize(base,cur,cnt,init) \
…		…
160	cur = newcnt; \	204	cur = newcnt; \
161	}	205	}
162		206
163	/*****************************************************************************/	207	/*****************************************************************************/
164		208
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
175	static void	209	static void
176	anfds_init (ANFD *base, int count)	210	anfds_init (ANFD *base, int count)
177	{	211	{
178	while (count--)	212	while (count--)
179	{	213	{
…		…
183		217
184	++base;	218	++base;
185	}	219	}
186	}	220	}
187		221
188	typedef struct
189	{
190	W w;
191	int events;
192	} ANPENDING;
193
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void	222	static void
198	event (W w, int events)	223	event (EV_P_ W w, int events)
199	{	224	{
200	if (w->pending)	225	if (w->pending)
201	{	226	{
202	pendings [w->pending - 1].events \|= events;	227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
203	return;	228	return;
204	}	229	}
205		230
206	w->pending = ++pendingcnt;	231	w->pending = ++pendingcnt [ABSPRI (w)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
208	pendings [pendingcnt - 1].w = w;	233	pendings [ABSPRI (w)][w->pending - 1].w = w;
209	pendings [pendingcnt - 1].events = events;	234	pendings [ABSPRI (w)][w->pending - 1].events = events;
210	}	235	}
211		236
212	static void	237	static void
213	queue_events (W *events, int eventcnt, int type)	238	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	239	{
215	int i;	240	int i;
216		241
217	for (i = 0; i < eventcnt; ++i)	242	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	243	event (EV_A_ events [i], type);
219	}	244	}
220		245
221	static void	246	static void
222	fd_event (int fd, int events)	247	fd_event (EV_P_ int fd, int events)
223	{	248	{
224	ANFD *anfd = anfds + fd;	249	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	250	struct ev_io *w;
226		251
227	for (w = anfd->head; w; w = w->next)	252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	253	{
229	int ev = w->events & events;	254	int ev = w->events & events;
230		255
231	if (ev)	256	if (ev)
232	event ((W)w, ev);	257	event (EV_A_ (W)w, ev);
233	}	258	}
234	}	259	}
235		260
236	/*****************************************************************************/	261	/*****************************************************************************/
237		262
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	263	static void
242	fd_reify (void)	264	fd_reify (EV_P)
243	{	265	{
244	int i;	266	int i;
245		267
246	for (i = 0; i < fdchangecnt; ++i)	268	for (i = 0; i < fdchangecnt; ++i)
247	{	269	{
…		…
249	ANFD *anfd = anfds + fd;	271	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	272	struct ev_io *w;
251		273
252	int events = 0;	274	int events = 0;
253		275
254	for (w = anfd->head; w; w = w->next)	276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	277	events \|= w->events;
256		278
257	anfd->reify = 0;	279	anfd->reify = 0;
258		280
259	if (anfd->events != events)	281	if (anfd->events != events)
260	{	282	{
261	method_modify (fd, anfd->events, events);	283	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	284	anfd->events = events;
263	}	285	}
264	}	286	}
265		287
266	fdchangecnt = 0;	288	fdchangecnt = 0;
267	}	289	}
268		290
269	static void	291	static void
270	fd_change (int fd)	292	fd_change (EV_P_ int fd)
271	{	293	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	294	if (anfds [fd].reify \|\| fdchangecnt < 0)
273	return;	295	return;
274		296
275	anfds [fd].reify = 1;	297	anfds [fd].reify = 1;
…		…
277	++fdchangecnt;	299	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
279	fdchanges [fdchangecnt - 1] = fd;	301	fdchanges [fdchangecnt - 1] = fd;
280	}	302	}
281		303
		304	static void
		305	fd_kill (EV_P_ int fd)
		306	{
		307	struct ev_io *w;
		308
		309	while ((w = (struct ev_io *)anfds [fd].head))
		310	{
		311	ev_io_stop (EV_A_ w);
		312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		313	}
		314	}
		315
282	/* called on EBADF to verify fds */	316	/* called on EBADF to verify fds */
283	static void	317	static void
284	fd_recheck (void)	318	fd_ebadf (EV_P)
285	{	319	{
286	int fd;	320	int fd;
287		321
288	for (fd = 0; fd < anfdmax; ++fd)	322	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	323	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
291	while (anfds [fd].head)	325	fd_kill (EV_A_ fd);
		326	}
		327
		328	/* called on ENOMEM in select/poll to kill some fds and retry */
		329	static void
		330	fd_enomem (EV_P)
		331	{
		332	int fd = anfdmax;
		333
		334	while (fd--)
		335	if (anfds [fd].events)
292	{	336	{
293	ev_io_stop (anfds [fd].head);	337	close (fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	338	fd_kill (EV_A_ fd);
		339	return;
295	}	340	}
296	}	341	}
297		342
298	/*****************************************************************************/	343	/*****************************************************************************/
299		344
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	345	static void
307	upheap (WT *timers, int k)	346	upheap (WT *heap, int k)
308	{	347	{
309	WT w = timers [k];	348	WT w = heap [k];
310		349
311	while (k && timers [k >> 1]->at > w->at)	350	while (k && heap [k >> 1]->at > w->at)
312	{	351	{
313	timers [k] = timers [k >> 1];	352	heap [k] = heap [k >> 1];
314	timers [k]->active = k + 1;	353	heap [k]->active = k + 1;
315	k >>= 1;	354	k >>= 1;
316	}	355	}
317		356
318	timers [k] = w;	357	heap [k] = w;
319	timers [k]->active = k + 1;	358	heap [k]->active = k + 1;
320		359
321	}	360	}
322		361
323	static void	362	static void
324	downheap (WT *timers, int N, int k)	363	downheap (WT *heap, int N, int k)
325	{	364	{
326	WT w = timers [k];	365	WT w = heap [k];
327		366
328	while (k < (N >> 1))	367	while (k < (N >> 1))
329	{	368	{
330	int j = k << 1;	369	int j = k << 1;
331		370
332	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	371	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
333	++j;	372	++j;
334		373
335	if (w->at <= timers [j]->at)	374	if (w->at <= heap [j]->at)
336	break;	375	break;
337		376
338	timers [k] = timers [j];	377	heap [k] = heap [j];
339	timers [k]->active = k + 1;	378	heap [k]->active = k + 1;
340	k = j;	379	k = j;
341	}	380	}
342		381
343	timers [k] = w;	382	heap [k] = w;
344	timers [k]->active = k + 1;	383	heap [k]->active = k + 1;
345	}	384	}
346		385
347	/*****************************************************************************/	386	/*****************************************************************************/
348		387
349	typedef struct	388	typedef struct
350	{	389	{
351	struct ev_signal *head;	390	struct ev_watcher_list *head;
352	sig_atomic_t volatile gotsig;	391	sig_atomic_t volatile gotsig;
353	} ANSIG;	392	} ANSIG;
354		393
355	static ANSIG *signals;	394	static ANSIG *signals;
356	static int signalmax;	395	static int signalmax;
357		396
358	static int sigpipe [2];	397	static int sigpipe [2];
359	static sig_atomic_t volatile gotsig;	398	static sig_atomic_t volatile gotsig;
360	static struct ev_io sigev;
361		399
362	static void	400	static void
363	signals_init (ANSIG *base, int count)	401	signals_init (ANSIG *base, int count)
364	{	402	{
365	while (count--)	403	while (count--)
…		…
376	{	414	{
377	signals [signum - 1].gotsig = 1;	415	signals [signum - 1].gotsig = 1;
378		416
379	if (!gotsig)	417	if (!gotsig)
380	{	418	{
		419	int old_errno = errno;
381	gotsig = 1;	420	gotsig = 1;
382	write (sigpipe [1], &signum, 1);	421	write (sigpipe [1], &signum, 1);
		422	errno = old_errno;
383	}	423	}
384	}	424	}
385		425
386	static void	426	static void
387	sigcb (struct ev_io *iow, int revents)	427	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	428	{
389	struct ev_signal *w;	429	struct ev_watcher_list *w;
390	int signum;	430	int signum;
391		431
392	read (sigpipe [0], &revents, 1);	432	read (sigpipe [0], &revents, 1);
393	gotsig = 0;	433	gotsig = 0;
394		434
…		…
396	if (signals [signum].gotsig)	436	if (signals [signum].gotsig)
397	{	437	{
398	signals [signum].gotsig = 0;	438	signals [signum].gotsig = 0;
399		439
400	for (w = signals [signum].head; w; w = w->next)	440	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);	441	event (EV_A_ (W)w, EV_SIGNAL);
402	}	442	}
403	}	443	}
404		444
405	static void	445	static void
406	siginit (void)	446	siginit (EV_P)
407	{	447	{
		448	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		451
411	/* rather than sort out wether we really need nb, set it */	452	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		455	#endif
414		456
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	457	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	458	ev_io_start (EV_A_ &sigev);
		459	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	460	}
418		461
419	/*****************************************************************************/	462	/*****************************************************************************/
420		463
421	static struct ev_idle **idles;	464	#ifndef WIN32
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];
433	static struct ev_signal childev;
434		465
435	#ifndef WCONTINUED	466	#ifndef WCONTINUED
436	# define WCONTINUED 0	467	# define WCONTINUED 0
437	#endif	468	#endif
438		469
439	static void	470	static void
440	childcb (struct ev_signal *sw, int revents)	471	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	472	{
442	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	{
443	int pid, status;	488	int pid, status;
444		489
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	491	{
447	if (w->pid == pid \|\| !w->pid)	492	/* make sure we are called again until all childs have been reaped */
448	{	493	event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	494
450	event ((W)w, EV_CHILD);	495	child_reap (EV_A_ sw, pid, pid, status);
451	}	496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		497	}
452	}	498	}
		499
		500	#endif
453		501
454	/*****************************************************************************/	502	/*****************************************************************************/
455		503
		504	#if EV_USE_KQUEUE
		505	# include "ev_kqueue.c"
		506	#endif
456	#if EV_USE_EPOLL	507	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	508	# include "ev_epoll.c"
458	#endif	509	#endif
		510	#if EV_USEV_POLL
		511	# include "ev_poll.c"
		512	#endif
459	#if EV_USE_SELECT	513	#if EV_USE_SELECT
460	# include "ev_select.c"	514	# include "ev_select.c"
461	#endif	515	#endif
462		516
463	int	517	int
…		…
470	ev_version_minor (void)	524	ev_version_minor (void)
471	{	525	{
472	return EV_VERSION_MINOR;	526	return EV_VERSION_MINOR;
473	}	527	}
474		528
475	int ev_init (int flags)	529	/* return true if we are running with elevated privileges and should ignore env variables */
		530	static int
		531	enable_secure (void)
476	{	532	{
		533	#ifdef WIN32
		534	return 0;
		535	#else
		536	return getuid () != geteuid ()
		537	\|\| getgid () != getegid ();
		538	#endif
		539	}
		540
		541	int
		542	ev_method (EV_P)
		543	{
		544	return method;
		545	}
		546
		547	inline int
		548	loop_init (EV_P_ int methods)
		549	{
477	if (!ev_method)	550	if (!method)
478	{	551	{
479	#if EV_USE_MONOTONIC	552	#if EV_USE_MONOTONIC
480	{	553	{
481	struct timespec ts;	554	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	556	have_monotonic = 1;
484	}	557	}
485	#endif	558	#endif
486		559
487	ev_now = ev_time ();	560	rt_now = ev_time ();
488	now = get_clock ();	561	mn_now = get_clock ();
489	now_floor = now;	562	now_floor = mn_now;
490	diff = ev_now - now;	563	rtmn_diff = rt_now - mn_now;
491		564
492	if (pipe (sigpipe))	565	if (pipe (sigpipe))
493	return 0;	566	return 0;
494		567
		568	if (methods == EVMETHOD_AUTO)
		569	if (!enable_secure () && getenv ("LIBmethodS"))
		570	methods = atoi (getenv ("LIBmethodS"));
		571	else
495	ev_method = EVMETHOD_NONE;	572	methods = EVMETHOD_ANY;
		573
		574	method = 0;
		575	#if EV_USE_KQUEUE
		576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		577	#endif
496	#if EV_USE_EPOLL	578	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		580	#endif
		581	#if EV_USEV_POLL
		582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	583	#endif
499	#if EV_USE_SELECT	584	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	586	#endif
502		587
503	if (ev_method)	588	if (method)
504	{	589	{
505	ev_watcher_init (&sigev, sigcb);	590	ev_watcher_init (&sigev, sigcb);
		591	ev_set_priority (&sigev, EV_MAXPRI);
506	siginit ();	592	siginit (EV_A);
507		593
		594	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	595	ev_signal_init (&childev, childcb, SIGCHLD);
		596	ev_set_priority (&childev, EV_MAXPRI);
509	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
510	}	600	}
511	}	601	}
512		602
513	return ev_method;	603	return method;
514	}	604	}
		605
		606	#if 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	if (loop_init (EV_A_ methods))
		614	return loop;
		615
		616	ev_loop_delete (loop);
		617
		618	return 0;
		619	}
		620
		621	void
		622	ev_loop_delete (EV_P)
		623	{
		624	/TODO/
		625	free (loop);
		626	}
		627
		628	#else
		629
		630	int
		631	ev_init (int methods)
		632	{
		633	return loop_init (methods);
		634	}
		635
		636	#endif
515		637
516	/*****************************************************************************/	638	/*****************************************************************************/
517		639
518	void	640	void
519	ev_fork_prepare (void)	641	ev_fork_prepare (void)
…		…
528	}	650	}
529		651
530	void	652	void
531	ev_fork_child (void)	653	ev_fork_child (void)
532	{	654	{
		655	/TODO/
		656	#if !EV_MULTIPLICITY
533	#if EV_USE_EPOLL	657	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)	658	if (method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();	659	epoll_postfork_child (EV_A);
536	#endif	660	#endif
537		661
538	ev_io_stop (&sigev);	662	ev_io_stop (EV_A_ &sigev);
539	close (sigpipe [0]);	663	close (sigpipe [0]);
540	close (sigpipe [1]);	664	close (sigpipe [1]);
541	pipe (sigpipe);	665	pipe (sigpipe);
542	siginit ();	666	siginit (EV_A);
		667	#endif
543	}	668	}
544		669
545	/*****************************************************************************/	670	/*****************************************************************************/
546		671
547	static void	672	static void
548	call_pending (void)	673	call_pending (EV_P)
549	{	674	{
		675	int pri;
		676
		677	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	678	while (pendingcnt [pri])
551	{	679	{
552	ANPENDING *p = pendings + --pendingcnt;	680	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		681
554	if (p->w)	682	if (p->w)
555	{	683	{
556	p->w->pending = 0;	684	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	685	p->w->cb (EV_A_ p->w, p->events);
558	}	686	}
559	}	687	}
560	}	688	}
561		689
562	static void	690	static void
563	timers_reify (void)	691	timers_reify (EV_P)
564	{	692	{
565	while (timercnt && timers [0]->at <= now)	693	while (timercnt && timers [0]->at <= mn_now)
566	{	694	{
567	struct ev_timer *w = timers [0];	695	struct ev_timer *w = timers [0];
568		696
569	/* first reschedule or stop timer */	697	/* first reschedule or stop timer */
570	if (w->repeat)	698	if (w->repeat)
571	{	699	{
572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	700	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
573	w->at = now + w->repeat;	701	w->at = mn_now + w->repeat;
574	downheap ((WT *)timers, timercnt, 0);	702	downheap ((WT *)timers, timercnt, 0);
575	}	703	}
576	else	704	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	705	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		706
579	event ((W)w, EV_TIMEOUT);	707	event (EV_A_ (W)w, EV_TIMEOUT);
580	}	708	}
581	}	709	}
582		710
583	static void	711	static void
584	periodics_reify (void)	712	periodics_reify (EV_P)
585	{	713	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	714	while (periodiccnt && periodics [0]->at <= rt_now)
587	{	715	{
588	struct ev_periodic *w = periodics [0];	716	struct ev_periodic *w = periodics [0];
589		717
590	/* first reschedule or stop timer */	718	/* first reschedule or stop timer */
591	if (w->interval)	719	if (w->interval)
592	{	720	{
593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	721	w->at += floor ((rt_now - 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));	722	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
595	downheap ((WT *)periodics, periodiccnt, 0);	723	downheap ((WT *)periodics, periodiccnt, 0);
596	}	724	}
597	else	725	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	726	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		727
600	event ((W)w, EV_PERIODIC);	728	event (EV_A_ (W)w, EV_PERIODIC);
601	}	729	}
602	}	730	}
603		731
604	static void	732	static void
605	periodics_reschedule (ev_tstamp diff)	733	periodics_reschedule (EV_P)
606	{	734	{
607	int i;	735	int i;
608		736
609	/* adjust periodics after time jump */	737	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	738	for (i = 0; i < periodiccnt; ++i)
611	{	739	{
612	struct ev_periodic *w = periodics [i];	740	struct ev_periodic *w = periodics [i];
613		741
614	if (w->interval)	742	if (w->interval)
615	{	743	{
616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	744	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
617		745
618	if (fabs (diff) >= 1e-4)	746	if (fabs (diff) >= 1e-4)
619	{	747	{
620	ev_periodic_stop (w);	748	ev_periodic_stop (EV_A_ w);
621	ev_periodic_start (w);	749	ev_periodic_start (EV_A_ w);
622		750
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */	751	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}	752	}
625	}	753	}
626	}	754	}
627	}	755	}
628		756
629	static int	757	inline int
630	time_update_monotonic (void)	758	time_update_monotonic (EV_P)
631	{	759	{
632	now = get_clock ();	760	mn_now = get_clock ();
633		761
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	762	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	763	{
636	ev_now = now + diff;	764	rt_now = rtmn_diff + mn_now;
637	return 0;	765	return 0;
638	}	766	}
639	else	767	else
640	{	768	{
641	now_floor = now;	769	now_floor = mn_now;
642	ev_now = ev_time ();	770	rt_now = ev_time ();
643	return 1;	771	return 1;
644	}	772	}
645	}	773	}
646		774
647	static void	775	static void
648	time_update (void)	776	time_update (EV_P)
649	{	777	{
650	int i;	778	int i;
651		779
652	#if EV_USE_MONOTONIC	780	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	781	if (expect_true (have_monotonic))
654	{	782	{
655	if (time_update_monotonic ())	783	if (time_update_monotonic (EV_A))
656	{	784	{
657	ev_tstamp odiff = diff;	785	ev_tstamp odiff = rtmn_diff;
658		786
659	for (i = 4; --i; ) /* loop a few times, before making important decisions */	787	for (i = 4; --i; ) /* loop a few times, before making important decisions */
660	{	788	{
661	diff = ev_now - now;	789	rtmn_diff = rt_now - mn_now;
662		790
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	791	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
664	return; /* all is well */	792	return; /* all is well */
665		793
666	ev_now = ev_time ();	794	rt_now = ev_time ();
667	now = get_clock ();	795	mn_now = get_clock ();
668	now_floor = now;	796	now_floor = mn_now;
669	}	797	}
670		798
671	periodics_reschedule (diff - odiff);	799	periodics_reschedule (EV_A);
672	/* no timer adjustment, as the monotonic clock doesn't jump */	800	/* no timer adjustment, as the monotonic clock doesn't jump */
		801	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
673	}	802	}
674	}	803	}
675	else	804	else
676	#endif	805	#endif
677	{	806	{
678	ev_now = ev_time ();	807	rt_now = ev_time ();
679		808
680	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	809	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
681	{	810	{
682	periodics_reschedule (ev_now - now);	811	periodics_reschedule (EV_A);
683		812
684	/* adjust timers. this is easy, as the offset is the same for all */	813	/* adjust timers. this is easy, as the offset is the same for all */
685	for (i = 0; i < timercnt; ++i)	814	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	815	timers [i]->at += rt_now - mn_now;
687	}	816	}
688		817
689	now = ev_now;	818	mn_now = rt_now;
690	}	819	}
691	}	820	}
692		821
693	int ev_loop_done;	822	void
		823	ev_ref (EV_P)
		824	{
		825	++activecnt;
		826	}
694		827
		828	void
		829	ev_unref (EV_P)
		830	{
		831	--activecnt;
		832	}
		833
		834	static int loop_done;
		835
		836	void
695	void ev_loop (int flags)	837	ev_loop (EV_P_ int flags)
696	{	838	{
697	double block;	839	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	840	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		841
700	do	842	do
701	{	843	{
702	/* queue check watchers (and execute them) */	844	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	845	if (expect_false (preparecnt))
704	{	846	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	847	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	848	call_pending (EV_A);
707	}	849	}
708		850
709	/* update fd-related kernel structures */	851	/* update fd-related kernel structures */
710	fd_reify ();	852	fd_reify (EV_A);
711		853
712	/* calculate blocking time */	854	/* calculate blocking time */
713		855
714	/* we only need this for !monotonic clockor timers, but as we basically	856	/* we only need this for !monotonic clockor timers, but as we basically
715	always have timers, we just calculate it always */	857	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	858	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	859	if (expect_true (have_monotonic))
718	time_update_monotonic ();	860	time_update_monotonic (EV_A);
719	else	861	else
720	#endif	862	#endif
721	{	863	{
722	ev_now = ev_time ();	864	rt_now = ev_time ();
723	now = ev_now;	865	mn_now = rt_now;
724	}	866	}
725		867
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	868	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	869	block = 0.;
728	else	870	else
729	{	871	{
730	block = MAX_BLOCKTIME;	872	block = MAX_BLOCKTIME;
731		873
732	if (timercnt)	874	if (timercnt)
733	{	875	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	876	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
735	if (block > to) block = to;	877	if (block > to) block = to;
736	}	878	}
737		879
738	if (periodiccnt)	880	if (periodiccnt)
739	{	881	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	882	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
741	if (block > to) block = to;	883	if (block > to) block = to;
742	}	884	}
743		885
744	if (block < 0.) block = 0.;	886	if (block < 0.) block = 0.;
745	}	887	}
746		888
747	method_poll (block);	889	method_poll (EV_A_ block);
748		890
749	/* update ev_now, do magic */	891	/* update rt_now, do magic */
750	time_update ();	892	time_update (EV_A);
751		893
752	/* queue pending timers and reschedule them */	894	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	895	timers_reify (EV_A); /* relative timers called last */
754	periodics_reify (); /* absolute timers called first */	896	periodics_reify (EV_A); /* absolute timers called first */
755		897
756	/* queue idle watchers unless io or timers are pending */	898	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	899	if (!pendingcnt)
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	900	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		901
760	/* queue check watchers, to be executed first */	902	/* queue check watchers, to be executed first */
761	if (checkcnt)	903	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	904	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		905
764	call_pending ();	906	call_pending (EV_A);
765	}	907	}
766	while (!ev_loop_done);	908	while (activecnt && !loop_done);
767		909
768	if (ev_loop_done != 2)	910	if (loop_done != 2)
769	ev_loop_done = 0;	911	loop_done = 0;
		912	}
		913
		914	void
		915	ev_unloop (EV_P_ int how)
		916	{
		917	loop_done = how;
770	}	918	}
771		919
772	/*****************************************************************************/	920	/*****************************************************************************/
773		921
774	static void	922	inline void
775	wlist_add (WL *head, WL elem)	923	wlist_add (WL *head, WL elem)
776	{	924	{
777	elem->next = *head;	925	elem->next = *head;
778	*head = elem;	926	*head = elem;
779	}	927	}
780		928
781	static void	929	inline void
782	wlist_del (WL *head, WL elem)	930	wlist_del (WL *head, WL elem)
783	{	931	{
784	while (*head)	932	while (*head)
785	{	933	{
786	if (*head == elem)	934	if (*head == elem)
…		…
791		939
792	head = &(*head)->next;	940	head = &(*head)->next;
793	}	941	}
794	}	942	}
795		943
796	static void	944	inline void
797	ev_clear_pending (W w)	945	ev_clear_pending (EV_P_ W w)
798	{	946	{
799	if (w->pending)	947	if (w->pending)
800	{	948	{
801	pendings [w->pending - 1].w = 0;	949	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	950	w->pending = 0;
803	}	951	}
804	}	952	}
805		953
806	static void	954	inline void
807	ev_start (W w, int active)	955	ev_start (EV_P_ W w, int active)
808	{	956	{
		957	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		958	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		959
809	w->active = active;	960	w->active = active;
		961	ev_ref (EV_A);
810	}	962	}
811		963
812	static void	964	inline void
813	ev_stop (W w)	965	ev_stop (EV_P_ W w)
814	{	966	{
		967	ev_unref (EV_A);
815	w->active = 0;	968	w->active = 0;
816	}	969	}
817		970
818	/*****************************************************************************/	971	/*****************************************************************************/
819		972
820	void	973	void
821	ev_io_start (struct ev_io *w)	974	ev_io_start (EV_P_ struct ev_io *w)
822	{	975	{
823	int fd = w->fd;	976	int fd = w->fd;
824		977
825	if (ev_is_active (w))	978	if (ev_is_active (w))
826	return;	979	return;
827		980
828	assert (("ev_io_start called with negative fd", fd >= 0));	981	assert (("ev_io_start called with negative fd", fd >= 0));
829		982
830	ev_start ((W)w, 1);	983	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	984	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	985	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		986
834	fd_change (fd);	987	fd_change (EV_A_ fd);
835	}	988	}
836		989
837	void	990	void
838	ev_io_stop (struct ev_io *w)	991	ev_io_stop (EV_P_ struct ev_io *w)
839	{	992	{
840	ev_clear_pending ((W)w);	993	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	994	if (!ev_is_active (w))
842	return;	995	return;
843		996
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	997	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	998	ev_stop (EV_A_ (W)w);
846		999
847	fd_change (w->fd);	1000	fd_change (EV_A_ w->fd);
848	}	1001	}
849		1002
850	void	1003	void
851	ev_timer_start (struct ev_timer *w)	1004	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1005	{
853	if (ev_is_active (w))	1006	if (ev_is_active (w))
854	return;	1007	return;
855		1008
856	w->at += now;	1009	w->at += mn_now;
857		1010
858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1011	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
859		1012
860	ev_start ((W)w, ++timercnt);	1013	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1014	array_needsize (timers, timermax, timercnt, );
862	timers [timercnt - 1] = w;	1015	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1016	upheap ((WT *)timers, timercnt - 1);
864	}	1017	}
865		1018
866	void	1019	void
867	ev_timer_stop (struct ev_timer *w)	1020	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1021	{
869	ev_clear_pending ((W)w);	1022	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1023	if (!ev_is_active (w))
871	return;	1024	return;
872		1025
873	if (w->active < timercnt--)	1026	if (w->active < timercnt--)
874	{	1027	{
…		…
876	downheap ((WT *)timers, timercnt, w->active - 1);	1029	downheap ((WT *)timers, timercnt, w->active - 1);
877	}	1030	}
878		1031
879	w->at = w->repeat;	1032	w->at = w->repeat;
880		1033
881	ev_stop ((W)w);	1034	ev_stop (EV_A_ (W)w);
882	}	1035	}
883		1036
884	void	1037	void
885	ev_timer_again (struct ev_timer *w)	1038	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1039	{
887	if (ev_is_active (w))	1040	if (ev_is_active (w))
888	{	1041	{
889	if (w->repeat)	1042	if (w->repeat)
890	{	1043	{
891	w->at = now + w->repeat;	1044	w->at = mn_now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1045	downheap ((WT *)timers, timercnt, w->active - 1);
893	}	1046	}
894	else	1047	else
895	ev_timer_stop (w);	1048	ev_timer_stop (EV_A_ w);
896	}	1049	}
897	else if (w->repeat)	1050	else if (w->repeat)
898	ev_timer_start (w);	1051	ev_timer_start (EV_A_ w);
899	}	1052	}
900		1053
901	void	1054	void
902	ev_periodic_start (struct ev_periodic *w)	1055	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1056	{
904	if (ev_is_active (w))	1057	if (ev_is_active (w))
905	return;	1058	return;
906		1059
907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1060	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
908		1061
909	/* this formula differs from the one in periodic_reify because we do not always round up */	1062	/* this formula differs from the one in periodic_reify because we do not always round up */
910	if (w->interval)	1063	if (w->interval)
911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1064	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
912		1065
913	ev_start ((W)w, ++periodiccnt);	1066	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1067	array_needsize (periodics, periodicmax, periodiccnt, );
915	periodics [periodiccnt - 1] = w;	1068	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1069	upheap ((WT *)periodics, periodiccnt - 1);
917	}	1070	}
918		1071
919	void	1072	void
920	ev_periodic_stop (struct ev_periodic *w)	1073	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1074	{
922	ev_clear_pending ((W)w);	1075	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1076	if (!ev_is_active (w))
924	return;	1077	return;
925		1078
926	if (w->active < periodiccnt--)	1079	if (w->active < periodiccnt--)
927	{	1080	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1081	periodics [w->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1082	downheap ((WT *)periodics, periodiccnt, w->active - 1);
930	}	1083	}
931		1084
932	ev_stop ((W)w);	1085	ev_stop (EV_A_ (W)w);
933	}	1086	}
934		1087
		1088	#ifndef SA_RESTART
		1089	# define SA_RESTART 0
		1090	#endif
		1091
935	void	1092	void
936	ev_signal_start (struct ev_signal *w)	1093	ev_signal_start (EV_P_ struct ev_signal *w)
937	{	1094	{
938	if (ev_is_active (w))	1095	if (ev_is_active (w))
939	return;	1096	return;
940		1097
941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1098	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
942		1099
943	ev_start ((W)w, 1);	1100	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1101	array_needsize (signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1102	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1103
947	if (!w->next)	1104	if (!w->next)
948	{	1105	{
949	struct sigaction sa;	1106	struct sigaction sa;
950	sa.sa_handler = sighandler;	1107	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1108	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1109	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1110	sigaction (w->signum, &sa, 0);
954	}	1111	}
955	}	1112	}
956		1113
957	void	1114	void
958	ev_signal_stop (struct ev_signal *w)	1115	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1116	{
960	ev_clear_pending ((W)w);	1117	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1118	if (!ev_is_active (w))
962	return;	1119	return;
963		1120
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1121	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1122	ev_stop (EV_A_ (W)w);
966		1123
967	if (!signals [w->signum - 1].head)	1124	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1125	signal (w->signum, SIG_DFL);
969	}	1126	}
970		1127
971	void	1128	void
972	ev_idle_start (struct ev_idle *w)	1129	ev_idle_start (EV_P_ struct ev_idle *w)
973	{	1130	{
974	if (ev_is_active (w))	1131	if (ev_is_active (w))
975	return;	1132	return;
976		1133
977	ev_start ((W)w, ++idlecnt);	1134	ev_start (EV_A_ (W)w, ++idlecnt);
978	array_needsize (idles, idlemax, idlecnt, );	1135	array_needsize (idles, idlemax, idlecnt, );
979	idles [idlecnt - 1] = w;	1136	idles [idlecnt - 1] = w;
980	}	1137	}
981		1138
982	void	1139	void
983	ev_idle_stop (struct ev_idle *w)	1140	ev_idle_stop (EV_P_ struct ev_idle *w)
984	{	1141	{
985	ev_clear_pending ((W)w);	1142	ev_clear_pending (EV_A_ (W)w);
986	if (ev_is_active (w))	1143	if (ev_is_active (w))
987	return;	1144	return;
988		1145
989	idles [w->active - 1] = idles [--idlecnt];	1146	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);	1147	ev_stop (EV_A_ (W)w);
991	}	1148	}
992		1149
993	void	1150	void
994	ev_prepare_start (struct ev_prepare *w)	1151	ev_prepare_start (EV_P_ struct ev_prepare *w)
995	{	1152	{
996	if (ev_is_active (w))	1153	if (ev_is_active (w))
997	return;	1154	return;
998		1155
999	ev_start ((W)w, ++preparecnt);	1156	ev_start (EV_A_ (W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );	1157	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;	1158	prepares [preparecnt - 1] = w;
1002	}	1159	}
1003		1160
1004	void	1161	void
1005	ev_prepare_stop (struct ev_prepare *w)	1162	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1006	{	1163	{
1007	ev_clear_pending ((W)w);	1164	ev_clear_pending (EV_A_ (W)w);
1008	if (ev_is_active (w))	1165	if (ev_is_active (w))
1009	return;	1166	return;
1010		1167
1011	prepares [w->active - 1] = prepares [--preparecnt];	1168	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);	1169	ev_stop (EV_A_ (W)w);
1013	}	1170	}
1014		1171
1015	void	1172	void
1016	ev_check_start (struct ev_check *w)	1173	ev_check_start (EV_P_ struct ev_check *w)
1017	{	1174	{
1018	if (ev_is_active (w))	1175	if (ev_is_active (w))
1019	return;	1176	return;
1020		1177
1021	ev_start ((W)w, ++checkcnt);	1178	ev_start (EV_A_ (W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );	1179	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;	1180	checks [checkcnt - 1] = w;
1024	}	1181	}
1025		1182
1026	void	1183	void
1027	ev_check_stop (struct ev_check *w)	1184	ev_check_stop (EV_P_ struct ev_check *w)
1028	{	1185	{
1029	ev_clear_pending ((W)w);	1186	ev_clear_pending (EV_A_ (W)w);
1030	if (ev_is_active (w))	1187	if (ev_is_active (w))
1031	return;	1188	return;
1032		1189
1033	checks [w->active - 1] = checks [--checkcnt];	1190	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);	1191	ev_stop (EV_A_ (W)w);
1035	}	1192	}
1036		1193
1037	void	1194	void
1038	ev_child_start (struct ev_child *w)	1195	ev_child_start (EV_P_ struct ev_child *w)
1039	{	1196	{
1040	if (ev_is_active (w))	1197	if (ev_is_active (w))
1041	return;	1198	return;
1042		1199
1043	ev_start ((W)w, 1);	1200	ev_start (EV_A_ (W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1201	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}	1202	}
1046		1203
1047	void	1204	void
1048	ev_child_stop (struct ev_child *w)	1205	ev_child_stop (EV_P_ struct ev_child *w)
1049	{	1206	{
1050	ev_clear_pending ((W)w);	1207	ev_clear_pending (EV_A_ (W)w);
1051	if (ev_is_active (w))	1208	if (ev_is_active (w))
1052	return;	1209	return;
1053		1210
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1212	ev_stop (EV_A_ (W)w);
1056	}	1213	}
1057		1214
1058	/*****************************************************************************/	1215	/*****************************************************************************/
1059		1216
1060	struct ev_once	1217	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1221	void (cb)(int revents, void arg);
1065	void *arg;	1222	void *arg;
1066	};	1223	};
1067		1224
1068	static void	1225	static void
1069	once_cb (struct ev_once *once, int revents)	1226	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1227	{
1071	void (cb)(int revents, void arg) = once->cb;	1228	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1229	void *arg = once->arg;
1073		1230
1074	ev_io_stop (&once->io);	1231	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1232	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1233	free (once);
1077		1234
1078	cb (revents, arg);	1235	cb (revents, arg);
1079	}	1236	}
1080		1237
1081	static void	1238	static void
1082	once_cb_io (struct ev_io *w, int revents)	1239	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1240	{
1084	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1241	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1085	}	1242	}
1086		1243
1087	static void	1244	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1245	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1246	{
1090	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1247	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1091	}	1248	}
1092		1249
1093	void	1250	void
1094	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1251	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1095	{	1252	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1253	struct ev_once *once = malloc (sizeof (struct ev_once));
1097		1254
1098	if (!once)	1255	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1256	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1104		1261
1105	ev_watcher_init (&once->io, once_cb_io);	1262	ev_watcher_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1263	if (fd >= 0)
1107	{	1264	{
1108	ev_io_set (&once->io, fd, events);	1265	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1266	ev_io_start (EV_A_ &once->io);
1110	}	1267	}
1111		1268
1112	ev_watcher_init (&once->to, once_cb_to);	1269	ev_watcher_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1270	if (timeout >= 0.)
1114	{	1271	{
1115	ev_timer_set (&once->to, timeout, 0.);	1272	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1273	ev_timer_start (EV_A_ &once->to);
1117	}	1274	}
1118	}	1275	}
1119	}	1276	}
1120		1277
1121	/*****************************************************************************/	1278	/*****************************************************************************/

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs. Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC