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Comparing libev/ev.c (file contents):
Revision 1.140 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.212 by root, Tue Feb 19 19:01:13 2008 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * modification, are permitted provided that the following conditions are 8 * tion, are permitted provided that the following conditions are met:
9 * met: 9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
10 * 27 *
11 * * Redistributions of source code must retain the above copyright 28 * Alternatively, the contents of this file may be used under the terms of
12 * notice, this list of conditions and the following disclaimer. 29 * the GNU General Public License ("GPL") version 2 or any later version,
13 * 30 * in which case the provisions of the GPL are applicable instead of
14 * * Redistributions in binary form must reproduce the above 31 * the above. If you wish to allow the use of your version of this file
15 * copyright notice, this list of conditions and the following 32 * only under the terms of the GPL and not to allow others to use your
16 * disclaimer in the documentation and/or other materials provided 33 * version of this file under the BSD license, indicate your decision
17 * with the distribution. 34 * by deleting the provisions above and replace them with the notice
18 * 35 * and other provisions required by the GPL. If you do not delete the
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 * provisions above, a recipient may use your version of this file under
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 * either the BSD or the GPL.
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
30 */ 38 */
31 39
32#ifdef __cplusplus 40#ifdef __cplusplus
33extern "C" { 41extern "C" {
34#endif 42#endif
… …
51# ifndef EV_USE_MONOTONIC 59# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0 60# define EV_USE_MONOTONIC 0
53# endif 61# endif
54# ifndef EV_USE_REALTIME 62# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0 63# define EV_USE_REALTIME 0
64# endif
65# endif
66
67# ifndef EV_USE_NANOSLEEP
68# if HAVE_NANOSLEEP
69# define EV_USE_NANOSLEEP 1
70# else
71# define EV_USE_NANOSLEEP 0
56# endif 72# endif
57# endif 73# endif
58 74
59# ifndef EV_USE_SELECT 75# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H 76# if HAVE_SELECT && HAVE_SYS_SELECT_H
… …
94# else 110# else
95# define EV_USE_PORT 0 111# define EV_USE_PORT 0
96# endif 112# endif
97# endif 113# endif
98 114
115# ifndef EV_USE_INOTIFY
116# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
117# define EV_USE_INOTIFY 1
118# else
119# define EV_USE_INOTIFY 0
120# endif
121# endif
122
99#endif 123#endif
100 124
101#include <math.h> 125#include <math.h>
102#include <stdlib.h> 126#include <stdlib.h>
103#include <fcntl.h> 127#include <fcntl.h>
… …
109#include <errno.h> 133#include <errno.h>
110#include <sys/types.h> 134#include <sys/types.h>
111#include <time.h> 135#include <time.h>
112 136
113#include <signal.h> 137#include <signal.h>
138
139#ifdef EV_H
140# include EV_H
141#else
142# include "ev.h"
143#endif
114 144
115#ifndef _WIN32 145#ifndef _WIN32
116# include <sys/time.h> 146# include <sys/time.h>
117# include <sys/wait.h> 147# include <sys/wait.h>
118# include <unistd.h> 148# include <unistd.h>
… …
132 162
133#ifndef EV_USE_REALTIME 163#ifndef EV_USE_REALTIME
134# define EV_USE_REALTIME 0 164# define EV_USE_REALTIME 0
135#endif 165#endif
136 166
167#ifndef EV_USE_NANOSLEEP
168# define EV_USE_NANOSLEEP 0
169#endif
170
137#ifndef EV_USE_SELECT 171#ifndef EV_USE_SELECT
138# define EV_USE_SELECT 1 172# define EV_USE_SELECT 1
139#endif 173#endif
140 174
141#ifndef EV_USE_POLL 175#ifndef EV_USE_POLL
… …
156 190
157#ifndef EV_USE_PORT 191#ifndef EV_USE_PORT
158# define EV_USE_PORT 0 192# define EV_USE_PORT 0
159#endif 193#endif
160 194
195#ifndef EV_USE_INOTIFY
196# define EV_USE_INOTIFY 0
197#endif
198
199#ifndef EV_PID_HASHSIZE
200# if EV_MINIMAL
201# define EV_PID_HASHSIZE 1
202# else
203# define EV_PID_HASHSIZE 16
204# endif
205#endif
206
207#ifndef EV_INOTIFY_HASHSIZE
208# if EV_MINIMAL
209# define EV_INOTIFY_HASHSIZE 1
210# else
211# define EV_INOTIFY_HASHSIZE 16
212# endif
213#endif
214
161/**/ 215/**/
162 216
163#ifndef CLOCK_MONOTONIC 217#ifndef CLOCK_MONOTONIC
164# undef EV_USE_MONOTONIC 218# undef EV_USE_MONOTONIC
165# define EV_USE_MONOTONIC 0 219# define EV_USE_MONOTONIC 0
… …
168#ifndef CLOCK_REALTIME 222#ifndef CLOCK_REALTIME
169# undef EV_USE_REALTIME 223# undef EV_USE_REALTIME
170# define EV_USE_REALTIME 0 224# define EV_USE_REALTIME 0
171#endif 225#endif
172 226
227#if !EV_STAT_ENABLE
228# undef EV_USE_INOTIFY
229# define EV_USE_INOTIFY 0
230#endif
231
232#if !EV_USE_NANOSLEEP
233# ifndef _WIN32
234# include <sys/select.h>
235# endif
236#endif
237
238#if EV_USE_INOTIFY
239# include <sys/inotify.h>
240#endif
241
173#if EV_SELECT_IS_WINSOCKET 242#if EV_SELECT_IS_WINSOCKET
174# include <winsock.h> 243# include <winsock.h>
175#endif 244#endif
176 245
177/**/ 246/**/
178 247
248/*
249 * This is used to avoid floating point rounding problems.
250 * It is added to ev_rt_now when scheduling periodics
251 * to ensure progress, time-wise, even when rounding
252 * errors are against us.
253 * This value is good at least till the year 4000.
254 * Better solutions welcome.
255 */
256#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
257
179#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 258#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
180#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 259#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
181#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ 260/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
183 261
184#ifdef EV_H
185# include EV_H
186#else
187# include "ev.h"
188#endif
189
190#if __GNUC__ >= 3 262#if __GNUC__ >= 4
191# define expect(expr,value) __builtin_expect ((expr),(value)) 263# define expect(expr,value) __builtin_expect ((expr),(value))
192# define inline_size static inline /* inline for codesize */
193# if EV_MINIMAL
194# define noinline __attribute__ ((noinline)) 264# define noinline __attribute__ ((noinline))
195# define inline_speed static noinline
196# else
197# define noinline
198# define inline_speed static inline
199# endif
200#else 265#else
201# define expect(expr,value) (expr) 266# define expect(expr,value) (expr)
202# define inline_speed static
203# define inline_minimal static
204# define noinline 267# define noinline
268# if __STDC_VERSION__ < 199901L
269# define inline
270# endif
205#endif 271#endif
206 272
207#define expect_false(expr) expect ((expr) != 0, 0) 273#define expect_false(expr) expect ((expr) != 0, 0)
208#define expect_true(expr) expect ((expr) != 0, 1) 274#define expect_true(expr) expect ((expr) != 0, 1)
275#define inline_size static inline
276
277#if EV_MINIMAL
278# define inline_speed static noinline
279#else
280# define inline_speed static inline
281#endif
209 282
210#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 283#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211#define ABSPRI(w) ((w)->priority - EV_MINPRI) 284#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212 285
213#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 286#define EMPTY /* required for microsofts broken pseudo-c compiler */
214#define EMPTY2(a,b) /* used to suppress some warnings */ 287#define EMPTY2(a,b) /* used to suppress some warnings */
215 288
216typedef ev_watcher *W; 289typedef ev_watcher *W;
217typedef ev_watcher_list *WL; 290typedef ev_watcher_list *WL;
218typedef ev_watcher_time *WT; 291typedef ev_watcher_time *WT;
219 292
293#if EV_USE_MONOTONIC
294/* sig_atomic_t is used to avoid per-thread variables or locking but still */
295/* giving it a reasonably high chance of working on typical architetcures */
220static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 296static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
297#endif
221 298
222#ifdef _WIN32 299#ifdef _WIN32
223# include "ev_win32.c" 300# include "ev_win32.c"
224#endif 301#endif
225 302
226/*****************************************************************************/ 303/*****************************************************************************/
227 304
228static void (*syserr_cb)(const char *msg); 305static void (*syserr_cb)(const char *msg);
229 306
307void
230void ev_set_syserr_cb (void (*cb)(const char *msg)) 308ev_set_syserr_cb (void (*cb)(const char *msg))
231{ 309{
232 syserr_cb = cb; 310 syserr_cb = cb;
233} 311}
234 312
235static void 313static void noinline
236syserr (const char *msg) 314syserr (const char *msg)
237{ 315{
238 if (!msg) 316 if (!msg)
239 msg = "(libev) system error"; 317 msg = "(libev) system error";
240 318
… …
247 } 325 }
248} 326}
249 327
250static void *(*alloc)(void *ptr, long size); 328static void *(*alloc)(void *ptr, long size);
251 329
330void
252void ev_set_allocator (void *(*cb)(void *ptr, long size)) 331ev_set_allocator (void *(*cb)(void *ptr, long size))
253{ 332{
254 alloc = cb; 333 alloc = cb;
255} 334}
256 335
257static void * 336inline_speed void *
258ev_realloc (void *ptr, long size) 337ev_realloc (void *ptr, long size)
259{ 338{
260 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 339 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
261 340
262 if (!ptr && size) 341 if (!ptr && size)
… …
286typedef struct 365typedef struct
287{ 366{
288 W w; 367 W w;
289 int events; 368 int events;
290} ANPENDING; 369} ANPENDING;
370
371#if EV_USE_INOTIFY
372typedef struct
373{
374 WL head;
375} ANFS;
376#endif
291 377
292#if EV_MULTIPLICITY 378#if EV_MULTIPLICITY
293 379
294 struct ev_loop 380 struct ev_loop
295 { 381 {
… …
315 401
316#endif 402#endif
317 403
318/*****************************************************************************/ 404/*****************************************************************************/
319 405
320ev_tstamp noinline 406ev_tstamp
321ev_time (void) 407ev_time (void)
322{ 408{
323#if EV_USE_REALTIME 409#if EV_USE_REALTIME
324 struct timespec ts; 410 struct timespec ts;
325 clock_gettime (CLOCK_REALTIME, &ts); 411 clock_gettime (CLOCK_REALTIME, &ts);
… …
352{ 438{
353 return ev_rt_now; 439 return ev_rt_now;
354} 440}
355#endif 441#endif
356 442
357#define array_roundsize(type,n) (((n) | 4) & ~3) 443void
444ev_sleep (ev_tstamp delay)
445{
446 if (delay > 0.)
447 {
448#if EV_USE_NANOSLEEP
449 struct timespec ts;
450
451 ts.tv_sec = (time_t)delay;
452 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
453
454 nanosleep (&ts, 0);
455#elif defined(_WIN32)
456 Sleep (delay * 1e3);
457#else
458 struct timeval tv;
459
460 tv.tv_sec = (time_t)delay;
461 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
462
463 select (0, 0, 0, 0, &tv);
464#endif
465 }
466}
467
468/*****************************************************************************/
469
470int inline_size
471array_nextsize (int elem, int cur, int cnt)
472{
473 int ncur = cur + 1;
474
475 do
476 ncur <<= 1;
477 while (cnt > ncur);
478
479 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
480 if (elem * ncur > 4096)
481 {
482 ncur *= elem;
483 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
484 ncur = ncur - sizeof (void *) * 4;
485 ncur /= elem;
486 }
487
488 return ncur;
489}
490
491static noinline void *
492array_realloc (int elem, void *base, int *cur, int cnt)
493{
494 *cur = array_nextsize (elem, *cur, cnt);
495 return ev_realloc (base, elem * *cur);
496}
358 497
359#define array_needsize(type,base,cur,cnt,init) \ 498#define array_needsize(type,base,cur,cnt,init) \
360 if (expect_false ((cnt) > cur)) \ 499 if (expect_false ((cnt) > (cur))) \
361 { \ 500 { \
362 int newcnt = cur; \ 501 int ocur_ = (cur); \
363 do \ 502 (base) = (type *)array_realloc \
364 { \ 503 (sizeof (type), (base), &(cur), (cnt)); \
365 newcnt = array_roundsize (type, newcnt << 1); \ 504 init ((base) + (ocur_), (cur) - ocur_); \
366 } \
367 while ((cnt) > newcnt); \
368 \
369 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
370 init (base + cur, newcnt - cur); \
371 cur = newcnt; \
372 } 505 }
373 506
507#if 0
374#define array_slim(type,stem) \ 508#define array_slim(type,stem) \
375 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 509 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
376 { \ 510 { \
377 stem ## max = array_roundsize (stem ## cnt >> 1); \ 511 stem ## max = array_roundsize (stem ## cnt >> 1); \
378 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 512 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
379 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 513 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
380 } 514 }
515#endif
381 516
382#define array_free(stem, idx) \ 517#define array_free(stem, idx) \
383 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 518 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
519
520/*****************************************************************************/
521
522void noinline
523ev_feed_event (EV_P_ void *w, int revents)
524{
525 W w_ = (W)w;
526 int pri = ABSPRI (w_);
527
528 if (expect_false (w_->pending))
529 pendings [pri][w_->pending - 1].events |= revents;
530 else
531 {
532 w_->pending = ++pendingcnt [pri];
533 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
534 pendings [pri][w_->pending - 1].w = w_;
535 pendings [pri][w_->pending - 1].events = revents;
536 }
537}
538
539void inline_speed
540queue_events (EV_P_ W *events, int eventcnt, int type)
541{
542 int i;
543
544 for (i = 0; i < eventcnt; ++i)
545 ev_feed_event (EV_A_ events [i], type);
546}
384 547
385/*****************************************************************************/ 548/*****************************************************************************/
386 549
387void inline_size 550void inline_size
388anfds_init (ANFD *base, int count) 551anfds_init (ANFD *base, int count)
… …
395 558
396 ++base; 559 ++base;
397 } 560 }
398} 561}
399 562
400void noinline
401ev_feed_event (EV_P_ void *w, int revents)
402{
403 W w_ = (W)w;
404
405 if (expect_false (w_->pending))
406 {
407 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
408 return;
409 }
410
411 w_->pending = ++pendingcnt [ABSPRI (w_)];
412 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
413 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
414 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
415}
416
417static void
418queue_events (EV_P_ W *events, int eventcnt, int type)
419{
420 int i;
421
422 for (i = 0; i < eventcnt; ++i)
423 ev_feed_event (EV_A_ events [i], type);
424}
425
426void inline_speed 563void inline_speed
427fd_event (EV_P_ int fd, int revents) 564fd_event (EV_P_ int fd, int revents)
428{ 565{
429 ANFD *anfd = anfds + fd; 566 ANFD *anfd = anfds + fd;
430 ev_io *w; 567 ev_io *w;
… …
439} 576}
440 577
441void 578void
442ev_feed_fd_event (EV_P_ int fd, int revents) 579ev_feed_fd_event (EV_P_ int fd, int revents)
443{ 580{
581 if (fd >= 0 && fd < anfdmax)
444 fd_event (EV_A_ fd, revents); 582 fd_event (EV_A_ fd, revents);
445} 583}
446
447/*****************************************************************************/
448 584
449void inline_size 585void inline_size
450fd_reify (EV_P) 586fd_reify (EV_P)
451{ 587{
452 int i; 588 int i;
… …
455 { 591 {
456 int fd = fdchanges [i]; 592 int fd = fdchanges [i];
457 ANFD *anfd = anfds + fd; 593 ANFD *anfd = anfds + fd;
458 ev_io *w; 594 ev_io *w;
459 595
460 int events = 0; 596 unsigned char events = 0;
461 597
462 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 598 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
463 events |= w->events; 599 events |= (unsigned char)w->events;
464 600
465#if EV_SELECT_IS_WINSOCKET 601#if EV_SELECT_IS_WINSOCKET
466 if (events) 602 if (events)
467 { 603 {
468 unsigned long argp; 604 unsigned long argp;
605 #ifdef EV_FD_TO_WIN32_HANDLE
606 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
607 #else
469 anfd->handle = _get_osfhandle (fd); 608 anfd->handle = _get_osfhandle (fd);
609 #endif
470 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 610 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
471 } 611 }
472#endif 612#endif
473 613
614 {
615 unsigned char o_events = anfd->events;
616 unsigned char o_reify = anfd->reify;
617
474 anfd->reify = 0; 618 anfd->reify = 0;
475
476 backend_modify (EV_A_ fd, anfd->events, events);
477 anfd->events = events; 619 anfd->events = events;
620
621 if (o_events != events || o_reify & EV_IOFDSET)
622 backend_modify (EV_A_ fd, o_events, events);
623 }
478 } 624 }
479 625
480 fdchangecnt = 0; 626 fdchangecnt = 0;
481} 627}
482 628
483void inline_size 629void inline_size
484fd_change (EV_P_ int fd) 630fd_change (EV_P_ int fd, int flags)
485{ 631{
486 if (expect_false (anfds [fd].reify)) 632 unsigned char reify = anfds [fd].reify;
487 return;
488
489 anfds [fd].reify = 1; 633 anfds [fd].reify |= flags;
490 634
635 if (expect_true (!reify))
636 {
491 ++fdchangecnt; 637 ++fdchangecnt;
492 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 638 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
493 fdchanges [fdchangecnt - 1] = fd; 639 fdchanges [fdchangecnt - 1] = fd;
640 }
494} 641}
495 642
496void inline_speed 643void inline_speed
497fd_kill (EV_P_ int fd) 644fd_kill (EV_P_ int fd)
498{ 645{
… …
545static void noinline 692static void noinline
546fd_rearm_all (EV_P) 693fd_rearm_all (EV_P)
547{ 694{
548 int fd; 695 int fd;
549 696
550 /* this should be highly optimised to not do anything but set a flag */
551 for (fd = 0; fd < anfdmax; ++fd) 697 for (fd = 0; fd < anfdmax; ++fd)
552 if (anfds [fd].events) 698 if (anfds [fd].events)
553 { 699 {
554 anfds [fd].events = 0; 700 anfds [fd].events = 0;
555 fd_change (EV_A_ fd); 701 fd_change (EV_A_ fd, EV_IOFDSET | 1);
556 } 702 }
557} 703}
558 704
559/*****************************************************************************/ 705/*****************************************************************************/
560 706
561void inline_speed 707void inline_speed
562upheap (WT *heap, int k) 708upheap (WT *heap, int k)
563{ 709{
564 WT w = heap [k]; 710 WT w = heap [k];
565 711
566 while (k && heap [k >> 1]->at > w->at) 712 while (k)
567 { 713 {
714 int p = (k - 1) >> 1;
715
716 if (heap [p]->at <= w->at)
717 break;
718
568 heap [k] = heap [k >> 1]; 719 heap [k] = heap [p];
569 ((W)heap [k])->active = k + 1; 720 ((W)heap [k])->active = k + 1;
570 k >>= 1; 721 k = p;
571 } 722 }
572 723
573 heap [k] = w; 724 heap [k] = w;
574 ((W)heap [k])->active = k + 1; 725 ((W)heap [k])->active = k + 1;
575
576} 726}
577 727
578void inline_speed 728void inline_speed
579downheap (WT *heap, int N, int k) 729downheap (WT *heap, int N, int k)
580{ 730{
581 WT w = heap [k]; 731 WT w = heap [k];
582 732
583 while (k < (N >> 1)) 733 for (;;)
584 { 734 {
585 int j = k << 1; 735 int c = (k << 1) + 1;
586 736
587 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 737 if (c >= N)
588 ++j;
589
590 if (w->at <= heap [j]->at)
591 break; 738 break;
592 739
740 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
741 ? 1 : 0;
742
743 if (w->at <= heap [c]->at)
744 break;
745
593 heap [k] = heap [j]; 746 heap [k] = heap [c];
594 ((W)heap [k])->active = k + 1; 747 ((W)heap [k])->active = k + 1;
748
595 k = j; 749 k = c;
596 } 750 }
597 751
598 heap [k] = w; 752 heap [k] = w;
599 ((W)heap [k])->active = k + 1; 753 ((W)heap [k])->active = k + 1;
600} 754}
… …
609/*****************************************************************************/ 763/*****************************************************************************/
610 764
611typedef struct 765typedef struct
612{ 766{
613 WL head; 767 WL head;
614 sig_atomic_t volatile gotsig; 768 EV_ATOMIC_T gotsig;
615} ANSIG; 769} ANSIG;
616 770
617static ANSIG *signals; 771static ANSIG *signals;
618static int signalmax; 772static int signalmax;
619 773
620static int sigpipe [2]; 774static EV_ATOMIC_T gotsig;
621static sig_atomic_t volatile gotsig;
622static ev_io sigev;
623 775
624void inline_size 776void inline_size
625signals_init (ANSIG *base, int count) 777signals_init (ANSIG *base, int count)
626{ 778{
627 while (count--) 779 while (count--)
… …
631 783
632 ++base; 784 ++base;
633 } 785 }
634} 786}
635 787
636static void 788/*****************************************************************************/
637sighandler (int signum)
638{
639#if _WIN32
640 signal (signum, sighandler);
641#endif
642 789
643 signals [signum - 1].gotsig = 1;
644
645 if (!gotsig)
646 {
647 int old_errno = errno;
648 gotsig = 1;
649 write (sigpipe [1], &signum, 1);
650 errno = old_errno;
651 }
652}
653
654void noinline
655ev_feed_signal_event (EV_P_ int signum)
656{
657 WL w;
658
659#if EV_MULTIPLICITY
660 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
661#endif
662
663 --signum;
664
665 if (signum < 0 || signum >= signalmax)
666 return;
667
668 signals [signum].gotsig = 0;
669
670 for (w = signals [signum].head; w; w = w->next)
671 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
672}
673
674static void
675sigcb (EV_P_ ev_io *iow, int revents)
676{
677 int signum;
678
679 read (sigpipe [0], &revents, 1);
680 gotsig = 0;
681
682 for (signum = signalmax; signum--; )
683 if (signals [signum].gotsig)
684 ev_feed_signal_event (EV_A_ signum + 1);
685}
686
687void inline_size 790void inline_speed
688fd_intern (int fd) 791fd_intern (int fd)
689{ 792{
690#ifdef _WIN32 793#ifdef _WIN32
691 int arg = 1; 794 int arg = 1;
692 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 795 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
695 fcntl (fd, F_SETFL, O_NONBLOCK); 798 fcntl (fd, F_SETFL, O_NONBLOCK);
696#endif 799#endif
697} 800}
698 801
699static void noinline 802static void noinline
700siginit (EV_P) 803evpipe_init (EV_P)
701{ 804{
805 if (!ev_is_active (&pipeev))
806 {
807 while (pipe (evpipe))
808 syserr ("(libev) error creating signal/async pipe");
809
702 fd_intern (sigpipe [0]); 810 fd_intern (evpipe [0]);
703 fd_intern (sigpipe [1]); 811 fd_intern (evpipe [1]);
704 812
705 ev_io_set (&sigev, sigpipe [0], EV_READ); 813 ev_io_set (&pipeev, evpipe [0], EV_READ);
706 ev_io_start (EV_A_ &sigev); 814 ev_io_start (EV_A_ &pipeev);
707 ev_unref (EV_A); /* child watcher should not keep loop alive */ 815 ev_unref (EV_A); /* watcher should not keep loop alive */
816 }
817}
818
819void inline_size
820evpipe_write (EV_P_ int sig, int async)
821{
822 if (!(gotasync || gotsig))
823 {
824 int old_errno = errno; /* save errno becaue write might clobber it */
825
826 if (sig) gotsig = 1;
827 if (async) gotasync = 1;
828
829 write (evpipe [1], &old_errno, 1);
830
831 errno = old_errno;
832 }
833}
834
835static void
836pipecb (EV_P_ ev_io *iow, int revents)
837{
838 {
839 int dummy;
840 read (evpipe [0], &dummy, 1);
841 }
842
843 if (gotsig && ev_is_default_loop (EV_A))
844 {
845 int signum;
846 gotsig = 0;
847
848 for (signum = signalmax; signum--; )
849 if (signals [signum].gotsig)
850 ev_feed_signal_event (EV_A_ signum + 1);
851 }
852
853#if EV_ASYNC_ENABLE
854 if (gotasync)
855 {
856 int i;
857 gotasync = 0;
858
859 for (i = asynccnt; i--; )
860 if (asyncs [i]->sent)
861 {
862 asyncs [i]->sent = 0;
863 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
864 }
865 }
866#endif
708} 867}
709 868
710/*****************************************************************************/ 869/*****************************************************************************/
711 870
871static void
872sighandler (int signum)
873{
874#if EV_MULTIPLICITY
875 struct ev_loop *loop = &default_loop_struct;
876#endif
877
878#if _WIN32
879 signal (signum, sighandler);
880#endif
881
882 signals [signum - 1].gotsig = 1;
883 evpipe_write (EV_A_ 1, 0);
884}
885
886void noinline
887ev_feed_signal_event (EV_P_ int signum)
888{
889 WL w;
890
891#if EV_MULTIPLICITY
892 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
893#endif
894
895 --signum;
896
897 if (signum < 0 || signum >= signalmax)
898 return;
899
900 signals [signum].gotsig = 0;
901
902 for (w = signals [signum].head; w; w = w->next)
903 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
904}
905
906/*****************************************************************************/
907
712static ev_child *childs [PID_HASHSIZE]; 908static WL childs [EV_PID_HASHSIZE];
713 909
714#ifndef _WIN32 910#ifndef _WIN32
715 911
716static ev_signal childev; 912static ev_signal childev;
913
914#ifndef WIFCONTINUED
915# define WIFCONTINUED(status) 0
916#endif
917
918void inline_speed
919child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
920{
921 ev_child *w;
922 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
923
924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
925 {
926 if ((w->pid == pid || !w->pid)
927 && (!traced || (w->flags & 1)))
928 {
929 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
930 w->rpid = pid;
931 w->rstatus = status;
932 ev_feed_event (EV_A_ (W)w, EV_CHILD);
933 }
934 }
935}
717 936
718#ifndef WCONTINUED 937#ifndef WCONTINUED
719# define WCONTINUED 0 938# define WCONTINUED 0
720#endif 939#endif
721 940
722void inline_speed
723child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
724{
725 ev_child *w;
726
727 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
728 if (w->pid == pid || !w->pid)
729 {
730 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
731 w->rpid = pid;
732 w->rstatus = status;
733 ev_feed_event (EV_A_ (W)w, EV_CHILD);
734 }
735}
736
737static void 941static void
738childcb (EV_P_ ev_signal *sw, int revents) 942childcb (EV_P_ ev_signal *sw, int revents)
739{ 943{
740 int pid, status; 944 int pid, status;
741 945
946 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
742 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 947 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
743 { 948 if (!WCONTINUED
949 || errno != EINVAL
950 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
951 return;
952
744 /* make sure we are called again until all childs have been reaped */ 953 /* make sure we are called again until all childs have been reaped */
745 /* we need to do it this way so that the callback gets called before we continue */ 954 /* we need to do it this way so that the callback gets called before we continue */
746 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 955 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
747 956
748 child_reap (EV_A_ sw, pid, pid, status); 957 child_reap (EV_A_ sw, pid, pid, status);
958 if (EV_PID_HASHSIZE > 1)
749 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 959 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
750 }
751} 960}
752 961
753#endif 962#endif
754 963
755/*****************************************************************************/ 964/*****************************************************************************/
… …
827} 1036}
828 1037
829unsigned int 1038unsigned int
830ev_embeddable_backends (void) 1039ev_embeddable_backends (void)
831{ 1040{
832 return EVBACKEND_EPOLL 1041 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
833 | EVBACKEND_KQUEUE 1042
834 | EVBACKEND_PORT; 1043 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1044 /* please fix it and tell me how to detect the fix */
1045 flags &= ~EVBACKEND_EPOLL;
1046
1047 return flags;
835} 1048}
836 1049
837unsigned int 1050unsigned int
838ev_backend (EV_P) 1051ev_backend (EV_P)
839{ 1052{
840 return backend; 1053 return backend;
841} 1054}
842 1055
843static void 1056unsigned int
1057ev_loop_count (EV_P)
1058{
1059 return loop_count;
1060}
1061
1062void
1063ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1064{
1065 io_blocktime = interval;
1066}
1067
1068void
1069ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1070{
1071 timeout_blocktime = interval;
1072}
1073
1074static void noinline
844loop_init (EV_P_ unsigned int flags) 1075loop_init (EV_P_ unsigned int flags)
845{ 1076{
846 if (!backend) 1077 if (!backend)
847 { 1078 {
848#if EV_USE_MONOTONIC 1079#if EV_USE_MONOTONIC
… …
851 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1082 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
852 have_monotonic = 1; 1083 have_monotonic = 1;
853 } 1084 }
854#endif 1085#endif
855 1086
856 ev_rt_now = ev_time (); 1087 ev_rt_now = ev_time ();
857 mn_now = get_clock (); 1088 mn_now = get_clock ();
858 now_floor = mn_now; 1089 now_floor = mn_now;
859 rtmn_diff = ev_rt_now - mn_now; 1090 rtmn_diff = ev_rt_now - mn_now;
1091
1092 io_blocktime = 0.;
1093 timeout_blocktime = 0.;
1094 backend = 0;
1095 backend_fd = -1;
1096 gotasync = 0;
1097#if EV_USE_INOTIFY
1098 fs_fd = -2;
1099#endif
1100
1101 /* pid check not overridable via env */
1102#ifndef _WIN32
1103 if (flags & EVFLAG_FORKCHECK)
1104 curpid = getpid ();
1105#endif
860 1106
861 if (!(flags & EVFLAG_NOENV) 1107 if (!(flags & EVFLAG_NOENV)
862 && !enable_secure () 1108 && !enable_secure ()
863 && getenv ("LIBEV_FLAGS")) 1109 && getenv ("LIBEV_FLAGS"))
864 flags = atoi (getenv ("LIBEV_FLAGS")); 1110 flags = atoi (getenv ("LIBEV_FLAGS"));
865 1111
866 if (!(flags & 0x0000ffffUL)) 1112 if (!(flags & 0x0000ffffUL))
867 flags |= ev_recommended_backends (); 1113 flags |= ev_recommended_backends ();
868 1114
869 backend = 0;
870#if EV_USE_PORT 1115#if EV_USE_PORT
871 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1116 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
872#endif 1117#endif
873#if EV_USE_KQUEUE 1118#if EV_USE_KQUEUE
874 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1119 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
881#endif 1126#endif
882#if EV_USE_SELECT 1127#if EV_USE_SELECT
883 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1128 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
884#endif 1129#endif
885 1130
886 ev_init (&sigev, sigcb); 1131 ev_init (&pipeev, pipecb);
887 ev_set_priority (&sigev, EV_MAXPRI); 1132 ev_set_priority (&pipeev, EV_MAXPRI);
888 } 1133 }
889} 1134}
890 1135
891static void 1136static void noinline
892loop_destroy (EV_P) 1137loop_destroy (EV_P)
893{ 1138{
894 int i; 1139 int i;
1140
1141 if (ev_is_active (&pipeev))
1142 {
1143 ev_ref (EV_A); /* signal watcher */
1144 ev_io_stop (EV_A_ &pipeev);
1145
1146 close (evpipe [0]); evpipe [0] = 0;
1147 close (evpipe [1]); evpipe [1] = 0;
1148 }
1149
1150#if EV_USE_INOTIFY
1151 if (fs_fd >= 0)
1152 close (fs_fd);
1153#endif
1154
1155 if (backend_fd >= 0)
1156 close (backend_fd);
895 1157
896#if EV_USE_PORT 1158#if EV_USE_PORT
897 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1159 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
898#endif 1160#endif
899#if EV_USE_KQUEUE 1161#if EV_USE_KQUEUE
… …
908#if EV_USE_SELECT 1170#if EV_USE_SELECT
909 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 1171 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
910#endif 1172#endif
911 1173
912 for (i = NUMPRI; i--; ) 1174 for (i = NUMPRI; i--; )
1175 {
913 array_free (pending, [i]); 1176 array_free (pending, [i]);
1177#if EV_IDLE_ENABLE
1178 array_free (idle, [i]);
1179#endif
1180 }
1181
1182 ev_free (anfds); anfdmax = 0;
914 1183
915 /* have to use the microsoft-never-gets-it-right macro */ 1184 /* have to use the microsoft-never-gets-it-right macro */
916 array_free (fdchange, EMPTY0); 1185 array_free (fdchange, EMPTY);
917 array_free (timer, EMPTY0); 1186 array_free (timer, EMPTY);
918#if EV_PERIODIC_ENABLE 1187#if EV_PERIODIC_ENABLE
919 array_free (periodic, EMPTY0); 1188 array_free (periodic, EMPTY);
920#endif 1189#endif
1190#if EV_FORK_ENABLE
921 array_free (idle, EMPTY0); 1191 array_free (fork, EMPTY);
1192#endif
922 array_free (prepare, EMPTY0); 1193 array_free (prepare, EMPTY);
923 array_free (check, EMPTY0); 1194 array_free (check, EMPTY);
1195#if EV_ASYNC_ENABLE
1196 array_free (async, EMPTY);
1197#endif
924 1198
925 backend = 0; 1199 backend = 0;
926} 1200}
927 1201
928static void 1202void inline_size infy_fork (EV_P);
1203
1204void inline_size
929loop_fork (EV_P) 1205loop_fork (EV_P)
930{ 1206{
931#if EV_USE_PORT 1207#if EV_USE_PORT
932 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1208 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
933#endif 1209#endif
… …
935 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 1211 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
936#endif 1212#endif
937#if EV_USE_EPOLL 1213#if EV_USE_EPOLL
938 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1214 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
939#endif 1215#endif
1216#if EV_USE_INOTIFY
1217 infy_fork (EV_A);
1218#endif
940 1219
941 if (ev_is_active (&sigev)) 1220 if (ev_is_active (&pipeev))
942 { 1221 {
943 /* default loop */ 1222 /* this "locks" the handlers against writing to the pipe */
1223 /* while we modify the fd vars */
1224 gotsig = 1;
1225#if EV_ASYNC_ENABLE
1226 gotasync = 1;
1227#endif
944 1228
945 ev_ref (EV_A); 1229 ev_ref (EV_A);
946 ev_io_stop (EV_A_ &sigev); 1230 ev_io_stop (EV_A_ &pipeev);
947 close (sigpipe [0]); 1231 close (evpipe [0]);
948 close (sigpipe [1]); 1232 close (evpipe [1]);
949 1233
950 while (pipe (sigpipe))
951 syserr ("(libev) error creating pipe");
952
953 siginit (EV_A); 1234 evpipe_init (EV_A);
1235 /* now iterate over everything, in case we missed something */
1236 pipecb (EV_A_ &pipeev, EV_READ);
954 } 1237 }
955 1238
956 postfork = 0; 1239 postfork = 0;
957} 1240}
958 1241
… …
980} 1263}
981 1264
982void 1265void
983ev_loop_fork (EV_P) 1266ev_loop_fork (EV_P)
984{ 1267{
985 postfork = 1; 1268 postfork = 1; /* must be in line with ev_default_fork */
986} 1269}
987 1270
988#endif 1271#endif
989 1272
990#if EV_MULTIPLICITY 1273#if EV_MULTIPLICITY
… …
993#else 1276#else
994int 1277int
995ev_default_loop (unsigned int flags) 1278ev_default_loop (unsigned int flags)
996#endif 1279#endif
997{ 1280{
998 if (sigpipe [0] == sigpipe [1])
999 if (pipe (sigpipe))
1000 return 0;
1001
1002 if (!ev_default_loop_ptr) 1281 if (!ev_default_loop_ptr)
1003 { 1282 {
1004#if EV_MULTIPLICITY 1283#if EV_MULTIPLICITY
1005 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1284 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1006#else 1285#else
… …
1009 1288
1010 loop_init (EV_A_ flags); 1289 loop_init (EV_A_ flags);
1011 1290
1012 if (ev_backend (EV_A)) 1291 if (ev_backend (EV_A))
1013 { 1292 {
1014 siginit (EV_A);
1015
1016#ifndef _WIN32 1293#ifndef _WIN32
1017 ev_signal_init (&childev, childcb, SIGCHLD); 1294 ev_signal_init (&childev, childcb, SIGCHLD);
1018 ev_set_priority (&childev, EV_MAXPRI); 1295 ev_set_priority (&childev, EV_MAXPRI);
1019 ev_signal_start (EV_A_ &childev); 1296 ev_signal_start (EV_A_ &childev);
1020 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1297 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1037#ifndef _WIN32 1314#ifndef _WIN32
1038 ev_ref (EV_A); /* child watcher */ 1315 ev_ref (EV_A); /* child watcher */
1039 ev_signal_stop (EV_A_ &childev); 1316 ev_signal_stop (EV_A_ &childev);
1040#endif 1317#endif
1041 1318
1042 ev_ref (EV_A); /* signal watcher */
1043 ev_io_stop (EV_A_ &sigev);
1044
1045 close (sigpipe [0]); sigpipe [0] = 0;
1046 close (sigpipe [1]); sigpipe [1] = 0;
1047
1048 loop_destroy (EV_A); 1319 loop_destroy (EV_A);
1049} 1320}
1050 1321
1051void 1322void
1052ev_default_fork (void) 1323ev_default_fork (void)
… …
1054#if EV_MULTIPLICITY 1325#if EV_MULTIPLICITY
1055 struct ev_loop *loop = ev_default_loop_ptr; 1326 struct ev_loop *loop = ev_default_loop_ptr;
1056#endif 1327#endif
1057 1328
1058 if (backend) 1329 if (backend)
1059 postfork = 1; 1330 postfork = 1; /* must be in line with ev_loop_fork */
1060} 1331}
1061 1332
1062/*****************************************************************************/ 1333/*****************************************************************************/
1063 1334
1064int inline_size 1335void
1065any_pending (EV_P) 1336ev_invoke (EV_P_ void *w, int revents)
1066{ 1337{
1067 int pri; 1338 EV_CB_INVOKE ((W)w, revents);
1068
1069 for (pri = NUMPRI; pri--; )
1070 if (pendingcnt [pri])
1071 return 1;
1072
1073 return 0;
1074} 1339}
1075 1340
1076void inline_speed 1341void inline_speed
1077call_pending (EV_P) 1342call_pending (EV_P)
1078{ 1343{
… …
1083 { 1348 {
1084 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1349 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1085 1350
1086 if (expect_true (p->w)) 1351 if (expect_true (p->w))
1087 { 1352 {
1088 assert (("non-pending watcher on pending list", p->w->pending)); 1353 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1089 1354
1090 p->w->pending = 0; 1355 p->w->pending = 0;
1091 EV_CB_INVOKE (p->w, p->events); 1356 EV_CB_INVOKE (p->w, p->events);
1092 } 1357 }
1093 } 1358 }
… …
1096void inline_size 1361void inline_size
1097timers_reify (EV_P) 1362timers_reify (EV_P)
1098{ 1363{
1099 while (timercnt && ((WT)timers [0])->at <= mn_now) 1364 while (timercnt && ((WT)timers [0])->at <= mn_now)
1100 { 1365 {
1101 ev_timer *w = timers [0]; 1366 ev_timer *w = (ev_timer *)timers [0];
1102 1367
1103 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1368 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1104 1369
1105 /* first reschedule or stop timer */ 1370 /* first reschedule or stop timer */
1106 if (w->repeat) 1371 if (w->repeat)
1107 { 1372 {
1108 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1373 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1109 1374
1110 ((WT)w)->at += w->repeat; 1375 ((WT)w)->at += w->repeat;
1111 if (((WT)w)->at < mn_now) 1376 if (((WT)w)->at < mn_now)
1112 ((WT)w)->at = mn_now; 1377 ((WT)w)->at = mn_now;
1113 1378
1114 downheap ((WT *)timers, timercnt, 0); 1379 downheap (timers, timercnt, 0);
1115 } 1380 }
1116 else 1381 else
1117 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1382 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1118 1383
1119 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1384 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1124void inline_size 1389void inline_size
1125periodics_reify (EV_P) 1390periodics_reify (EV_P)
1126{ 1391{
1127 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1392 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1128 { 1393 {
1129 ev_periodic *w = periodics [0]; 1394 ev_periodic *w = (ev_periodic *)periodics [0];
1130 1395
1131 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1396 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1132 1397
1133 /* first reschedule or stop timer */ 1398 /* first reschedule or stop timer */
1134 if (w->reschedule_cb) 1399 if (w->reschedule_cb)
1135 { 1400 {
1136 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1401 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1137 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1402 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1138 downheap ((WT *)periodics, periodiccnt, 0); 1403 downheap (periodics, periodiccnt, 0);
1139 } 1404 }
1140 else if (w->interval) 1405 else if (w->interval)
1141 { 1406 {
1142 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1407 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1408 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1143 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1409 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1144 downheap ((WT *)periodics, periodiccnt, 0); 1410 downheap (periodics, periodiccnt, 0);
1145 } 1411 }
1146 else 1412 else
1147 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1413 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1148 1414
1149 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1415 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1156 int i; 1422 int i;
1157 1423
1158 /* adjust periodics after time jump */ 1424 /* adjust periodics after time jump */
1159 for (i = 0; i < periodiccnt; ++i) 1425 for (i = 0; i < periodiccnt; ++i)
1160 { 1426 {
1161 ev_periodic *w = periodics [i]; 1427 ev_periodic *w = (ev_periodic *)periodics [i];
1162 1428
1163 if (w->reschedule_cb) 1429 if (w->reschedule_cb)
1164 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1430 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1165 else if (w->interval) 1431 else if (w->interval)
1166 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1432 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1167 } 1433 }
1168 1434
1169 /* now rebuild the heap */ 1435 /* now rebuild the heap */
1170 for (i = periodiccnt >> 1; i--; ) 1436 for (i = periodiccnt >> 1; i--; )
1171 downheap ((WT *)periodics, periodiccnt, i); 1437 downheap (periodics, periodiccnt, i);
1172} 1438}
1173#endif 1439#endif
1174 1440
1441#if EV_IDLE_ENABLE
1175int inline_size 1442void inline_size
1176time_update_monotonic (EV_P) 1443idle_reify (EV_P)
1177{ 1444{
1445 if (expect_false (idleall))
1446 {
1447 int pri;
1448
1449 for (pri = NUMPRI; pri--; )
1450 {
1451 if (pendingcnt [pri])
1452 break;
1453
1454 if (idlecnt [pri])
1455 {
1456 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1457 break;
1458 }
1459 }
1460 }
1461}
1462#endif
1463
1464void inline_speed
1465time_update (EV_P_ ev_tstamp max_block)
1466{
1467 int i;
1468
1469#if EV_USE_MONOTONIC
1470 if (expect_true (have_monotonic))
1471 {
1472 ev_tstamp odiff = rtmn_diff;
1473
1178 mn_now = get_clock (); 1474 mn_now = get_clock ();
1179 1475
1476 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1477 /* interpolate in the meantime */
1180 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1478 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1181 { 1479 {
1182 ev_rt_now = rtmn_diff + mn_now; 1480 ev_rt_now = rtmn_diff + mn_now;
1183 return 0; 1481 return;
1184 } 1482 }
1185 else 1483
1186 {
1187 now_floor = mn_now; 1484 now_floor = mn_now;
1188 ev_rt_now = ev_time (); 1485 ev_rt_now = ev_time ();
1189 return 1;
1190 }
1191}
1192 1486
1193void inline_size 1487 /* loop a few times, before making important decisions.
1194time_update (EV_P) 1488 * on the choice of "4": one iteration isn't enough,
1195{ 1489 * in case we get preempted during the calls to
1196 int i; 1490 * ev_time and get_clock. a second call is almost guaranteed
1197 1491 * to succeed in that case, though. and looping a few more times
1198#if EV_USE_MONOTONIC 1492 * doesn't hurt either as we only do this on time-jumps or
1199 if (expect_true (have_monotonic)) 1493 * in the unlikely event of having been preempted here.
1200 { 1494 */
1201 if (time_update_monotonic (EV_A)) 1495 for (i = 4; --i; )
1202 { 1496 {
1203 ev_tstamp odiff = rtmn_diff;
1204
1205 /* loop a few times, before making important decisions.
1206 * on the choice of "4": one iteration isn't enough,
1207 * in case we get preempted during the calls to
1208 * ev_time and get_clock. a second call is almost guarenteed
1209 * to succeed in that case, though. and looping a few more times
1210 * doesn't hurt either as we only do this on time-jumps or
1211 * in the unlikely event of getting preempted here.
1212 */
1213 for (i = 4; --i; )
1214 {
1215 rtmn_diff = ev_rt_now - mn_now; 1497 rtmn_diff = ev_rt_now - mn_now;
1216 1498
1217 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1499 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1218 return; /* all is well */ 1500 return; /* all is well */
1219 1501
1220 ev_rt_now = ev_time (); 1502 ev_rt_now = ev_time ();
1221 mn_now = get_clock (); 1503 mn_now = get_clock ();
1222 now_floor = mn_now; 1504 now_floor = mn_now;
1223 } 1505 }
1224 1506
1225# if EV_PERIODIC_ENABLE 1507# if EV_PERIODIC_ENABLE
1226 periodics_reschedule (EV_A); 1508 periodics_reschedule (EV_A);
1227# endif 1509# endif
1228 /* no timer adjustment, as the monotonic clock doesn't jump */ 1510 /* no timer adjustment, as the monotonic clock doesn't jump */
1229 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1511 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1230 }
1231 } 1512 }
1232 else 1513 else
1233#endif 1514#endif
1234 { 1515 {
1235 ev_rt_now = ev_time (); 1516 ev_rt_now = ev_time ();
1236 1517
1237 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1518 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1238 { 1519 {
1239#if EV_PERIODIC_ENABLE 1520#if EV_PERIODIC_ENABLE
1240 periodics_reschedule (EV_A); 1521 periodics_reschedule (EV_A);
1241#endif 1522#endif
1242
1243 /* adjust timers. this is easy, as the offset is the same for all */ 1523 /* adjust timers. this is easy, as the offset is the same for all of them */
1244 for (i = 0; i < timercnt; ++i) 1524 for (i = 0; i < timercnt; ++i)
1245 ((WT)timers [i])->at += ev_rt_now - mn_now; 1525 ((WT)timers [i])->at += ev_rt_now - mn_now;
1246 } 1526 }
1247 1527
1248 mn_now = ev_rt_now; 1528 mn_now = ev_rt_now;
… …
1268{ 1548{
1269 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1549 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1270 ? EVUNLOOP_ONE 1550 ? EVUNLOOP_ONE
1271 : EVUNLOOP_CANCEL; 1551 : EVUNLOOP_CANCEL;
1272 1552
1273 while (activecnt) 1553 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1554
1555 do
1274 { 1556 {
1557#ifndef _WIN32
1558 if (expect_false (curpid)) /* penalise the forking check even more */
1559 if (expect_false (getpid () != curpid))
1560 {
1561 curpid = getpid ();
1562 postfork = 1;
1563 }
1564#endif
1565
1566#if EV_FORK_ENABLE
1567 /* we might have forked, so queue fork handlers */
1568 if (expect_false (postfork))
1569 if (forkcnt)
1570 {
1571 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1572 call_pending (EV_A);
1573 }
1574#endif
1575
1275 /* queue check watchers (and execute them) */ 1576 /* queue prepare watchers (and execute them) */
1276 if (expect_false (preparecnt)) 1577 if (expect_false (preparecnt))
1277 { 1578 {
1278 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1579 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1279 call_pending (EV_A); 1580 call_pending (EV_A);
1280 } 1581 }
1281 1582
1583 if (expect_false (!activecnt))
1584 break;
1585
1282 /* we might have forked, so reify kernel state if necessary */ 1586 /* we might have forked, so reify kernel state if necessary */
1283 if (expect_false (postfork)) 1587 if (expect_false (postfork))
1284 loop_fork (EV_A); 1588 loop_fork (EV_A);
1285 1589
1286 /* update fd-related kernel structures */ 1590 /* update fd-related kernel structures */
1287 fd_reify (EV_A); 1591 fd_reify (EV_A);
1288 1592
1289 /* calculate blocking time */ 1593 /* calculate blocking time */
1290 { 1594 {
1291 double block; 1595 ev_tstamp waittime = 0.;
1596 ev_tstamp sleeptime = 0.;
1292 1597
1293 if (flags & EVLOOP_NONBLOCK || idlecnt) 1598 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1294 block = 0.; /* do not block at all */
1295 else
1296 { 1599 {
1297 /* update time to cancel out callback processing overhead */ 1600 /* update time to cancel out callback processing overhead */
1298#if EV_USE_MONOTONIC
1299 if (expect_true (have_monotonic))
1300 time_update_monotonic (EV_A); 1601 time_update (EV_A_ 1e100);
1301 else
1302#endif
1303 {
1304 ev_rt_now = ev_time ();
1305 mn_now = ev_rt_now;
1306 }
1307 1602
1308 block = MAX_BLOCKTIME; 1603 waittime = MAX_BLOCKTIME;
1309 1604
1310 if (timercnt) 1605 if (timercnt)
1311 { 1606 {
1312 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1607 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1313 if (block > to) block = to; 1608 if (waittime > to) waittime = to;
1314 } 1609 }
1315 1610
1316#if EV_PERIODIC_ENABLE 1611#if EV_PERIODIC_ENABLE
1317 if (periodiccnt) 1612 if (periodiccnt)
1318 { 1613 {
1319 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1614 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1320 if (block > to) block = to; 1615 if (waittime > to) waittime = to;
1321 } 1616 }
1322#endif 1617#endif
1323 1618
1324 if (expect_false (block < 0.)) block = 0.; 1619 if (expect_false (waittime < timeout_blocktime))
1620 waittime = timeout_blocktime;
1621
1622 sleeptime = waittime - backend_fudge;
1623
1624 if (expect_true (sleeptime > io_blocktime))
1625 sleeptime = io_blocktime;
1626
1627 if (sleeptime)
1628 {
1629 ev_sleep (sleeptime);
1630 waittime -= sleeptime;
1631 }
1325 } 1632 }
1326 1633
1634 ++loop_count;
1327 backend_poll (EV_A_ block); 1635 backend_poll (EV_A_ waittime);
1636
1637 /* update ev_rt_now, do magic */
1638 time_update (EV_A_ waittime + sleeptime);
1328 } 1639 }
1329
1330 /* update ev_rt_now, do magic */
1331 time_update (EV_A);
1332 1640
1333 /* queue pending timers and reschedule them */ 1641 /* queue pending timers and reschedule them */
1334 timers_reify (EV_A); /* relative timers called last */ 1642 timers_reify (EV_A); /* relative timers called last */
1335#if EV_PERIODIC_ENABLE 1643#if EV_PERIODIC_ENABLE
1336 periodics_reify (EV_A); /* absolute timers called first */ 1644 periodics_reify (EV_A); /* absolute timers called first */
1337#endif 1645#endif
1338 1646
1647#if EV_IDLE_ENABLE
1339 /* queue idle watchers unless other events are pending */ 1648 /* queue idle watchers unless other events are pending */
1340 if (idlecnt && !any_pending (EV_A)) 1649 idle_reify (EV_A);
1341 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1650#endif
1342 1651
1343 /* queue check watchers, to be executed first */ 1652 /* queue check watchers, to be executed first */
1344 if (expect_false (checkcnt)) 1653 if (expect_false (checkcnt))
1345 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1654 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1346 1655
1347 call_pending (EV_A); 1656 call_pending (EV_A);
1348 1657
1349 if (expect_false (loop_done))
1350 break;
1351 } 1658 }
1659 while (expect_true (activecnt && !loop_done));
1352 1660
1353 if (loop_done == EVUNLOOP_ONE) 1661 if (loop_done == EVUNLOOP_ONE)
1354 loop_done = EVUNLOOP_CANCEL; 1662 loop_done = EVUNLOOP_CANCEL;
1355} 1663}
1356 1664
… …
1383 head = &(*head)->next; 1691 head = &(*head)->next;
1384 } 1692 }
1385} 1693}
1386 1694
1387void inline_speed 1695void inline_speed
1388ev_clear_pending (EV_P_ W w) 1696clear_pending (EV_P_ W w)
1389{ 1697{
1390 if (w->pending) 1698 if (w->pending)
1391 { 1699 {
1392 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1700 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1393 w->pending = 0; 1701 w->pending = 0;
1394 } 1702 }
1395} 1703}
1396 1704
1705int
1706ev_clear_pending (EV_P_ void *w)
1707{
1708 W w_ = (W)w;
1709 int pending = w_->pending;
1710
1711 if (expect_true (pending))
1712 {
1713 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1714 w_->pending = 0;
1715 p->w = 0;
1716 return p->events;
1717 }
1718 else
1719 return 0;
1720}
1721
1722void inline_size
1723pri_adjust (EV_P_ W w)
1724{
1725 int pri = w->priority;
1726 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1727 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1728 w->priority = pri;
1729}
1730
1397void inline_speed 1731void inline_speed
1398ev_start (EV_P_ W w, int active) 1732ev_start (EV_P_ W w, int active)
1399{ 1733{
1400 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1734 pri_adjust (EV_A_ w);
1401 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1402
1403 w->active = active; 1735 w->active = active;
1404 ev_ref (EV_A); 1736 ev_ref (EV_A);
1405} 1737}
1406 1738
1407void inline_size 1739void inline_size
… …
1411 w->active = 0; 1743 w->active = 0;
1412} 1744}
1413 1745
1414/*****************************************************************************/ 1746/*****************************************************************************/
1415 1747
1416void 1748void noinline
1417ev_io_start (EV_P_ ev_io *w) 1749ev_io_start (EV_P_ ev_io *w)
1418{ 1750{
1419 int fd = w->fd; 1751 int fd = w->fd;
1420 1752
1421 if (expect_false (ev_is_active (w))) 1753 if (expect_false (ev_is_active (w)))
… …
1423 1755
1424 assert (("ev_io_start called with negative fd", fd >= 0)); 1756 assert (("ev_io_start called with negative fd", fd >= 0));
1425 1757
1426 ev_start (EV_A_ (W)w, 1); 1758 ev_start (EV_A_ (W)w, 1);
1427 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1759 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1428 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1760 wlist_add (&anfds[fd].head, (WL)w);
1429 1761
1430 fd_change (EV_A_ fd); 1762 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1763 w->events &= ~EV_IOFDSET;
1431} 1764}
1432 1765
1433void 1766void noinline
1434ev_io_stop (EV_P_ ev_io *w) 1767ev_io_stop (EV_P_ ev_io *w)
1435{ 1768{
1436 ev_clear_pending (EV_A_ (W)w); 1769 clear_pending (EV_A_ (W)w);
1437 if (expect_false (!ev_is_active (w))) 1770 if (expect_false (!ev_is_active (w)))
1438 return; 1771 return;
1439 1772
1440 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1773 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1441 1774
1442 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1775 wlist_del (&anfds[w->fd].head, (WL)w);
1443 ev_stop (EV_A_ (W)w); 1776 ev_stop (EV_A_ (W)w);
1444 1777
1445 fd_change (EV_A_ w->fd); 1778 fd_change (EV_A_ w->fd, 1);
1446} 1779}
1447 1780
1448void 1781void noinline
1449ev_timer_start (EV_P_ ev_timer *w) 1782ev_timer_start (EV_P_ ev_timer *w)
1450{ 1783{
1451 if (expect_false (ev_is_active (w))) 1784 if (expect_false (ev_is_active (w)))
1452 return; 1785 return;
1453 1786
1454 ((WT)w)->at += mn_now; 1787 ((WT)w)->at += mn_now;
1455 1788
1456 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1789 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1457 1790
1458 ev_start (EV_A_ (W)w, ++timercnt); 1791 ev_start (EV_A_ (W)w, ++timercnt);
1459 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1792 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1460 timers [timercnt - 1] = w; 1793 timers [timercnt - 1] = (WT)w;
1461 upheap ((WT *)timers, timercnt - 1); 1794 upheap (timers, timercnt - 1);
1462 1795
1463 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1796 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1464} 1797}
1465 1798
1466void 1799void noinline
1467ev_timer_stop (EV_P_ ev_timer *w) 1800ev_timer_stop (EV_P_ ev_timer *w)
1468{ 1801{
1469 ev_clear_pending (EV_A_ (W)w); 1802 clear_pending (EV_A_ (W)w);
1470 if (expect_false (!ev_is_active (w))) 1803 if (expect_false (!ev_is_active (w)))
1471 return; 1804 return;
1472 1805
1473 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1806 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1474 1807
1808 {
1809 int active = ((W)w)->active;
1810
1475 if (expect_true (((W)w)->active < timercnt--)) 1811 if (expect_true (--active < --timercnt))
1476 { 1812 {
1477 timers [((W)w)->active - 1] = timers [timercnt]; 1813 timers [active] = timers [timercnt];
1478 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1814 adjustheap (timers, timercnt, active);
1479 } 1815 }
1816 }
1480 1817
1481 ((WT)w)->at -= mn_now; 1818 ((WT)w)->at -= mn_now;
1482 1819
1483 ev_stop (EV_A_ (W)w); 1820 ev_stop (EV_A_ (W)w);
1484} 1821}
1485 1822
1486void 1823void noinline
1487ev_timer_again (EV_P_ ev_timer *w) 1824ev_timer_again (EV_P_ ev_timer *w)
1488{ 1825{
1489 if (ev_is_active (w)) 1826 if (ev_is_active (w))
1490 { 1827 {
1491 if (w->repeat) 1828 if (w->repeat)
1492 { 1829 {
1493 ((WT)w)->at = mn_now + w->repeat; 1830 ((WT)w)->at = mn_now + w->repeat;
1494 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1831 adjustheap (timers, timercnt, ((W)w)->active - 1);
1495 } 1832 }
1496 else 1833 else
1497 ev_timer_stop (EV_A_ w); 1834 ev_timer_stop (EV_A_ w);
1498 } 1835 }
1499 else if (w->repeat) 1836 else if (w->repeat)
… …
1502 ev_timer_start (EV_A_ w); 1839 ev_timer_start (EV_A_ w);
1503 } 1840 }
1504} 1841}
1505 1842
1506#if EV_PERIODIC_ENABLE 1843#if EV_PERIODIC_ENABLE
1507void 1844void noinline
1508ev_periodic_start (EV_P_ ev_periodic *w) 1845ev_periodic_start (EV_P_ ev_periodic *w)
1509{ 1846{
1510 if (expect_false (ev_is_active (w))) 1847 if (expect_false (ev_is_active (w)))
1511 return; 1848 return;
1512 1849
… …
1514 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1851 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1515 else if (w->interval) 1852 else if (w->interval)
1516 { 1853 {
1517 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1854 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1518 /* this formula differs from the one in periodic_reify because we do not always round up */ 1855 /* this formula differs from the one in periodic_reify because we do not always round up */
1519 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1856 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1520 } 1857 }
1858 else
1859 ((WT)w)->at = w->offset;
1521 1860
1522 ev_start (EV_A_ (W)w, ++periodiccnt); 1861 ev_start (EV_A_ (W)w, ++periodiccnt);
1523 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1862 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1524 periodics [periodiccnt - 1] = w; 1863 periodics [periodiccnt - 1] = (WT)w;
1525 upheap ((WT *)periodics, periodiccnt - 1); 1864 upheap (periodics, periodiccnt - 1);
1526 1865
1527 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1866 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1528} 1867}
1529 1868
1530void 1869void noinline
1531ev_periodic_stop (EV_P_ ev_periodic *w) 1870ev_periodic_stop (EV_P_ ev_periodic *w)
1532{ 1871{
1533 ev_clear_pending (EV_A_ (W)w); 1872 clear_pending (EV_A_ (W)w);
1534 if (expect_false (!ev_is_active (w))) 1873 if (expect_false (!ev_is_active (w)))
1535 return; 1874 return;
1536 1875
1537 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1876 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1538 1877
1878 {
1879 int active = ((W)w)->active;
1880
1539 if (expect_true (((W)w)->active < periodiccnt--)) 1881 if (expect_true (--active < --periodiccnt))
1540 { 1882 {
1541 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1883 periodics [active] = periodics [periodiccnt];
1542 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1884 adjustheap (periodics, periodiccnt, active);
1543 } 1885 }
1886 }
1544 1887
1545 ev_stop (EV_A_ (W)w); 1888 ev_stop (EV_A_ (W)w);
1546} 1889}
1547 1890
1548void 1891void noinline
1549ev_periodic_again (EV_P_ ev_periodic *w) 1892ev_periodic_again (EV_P_ ev_periodic *w)
1550{ 1893{
1551 /* TODO: use adjustheap and recalculation */ 1894 /* TODO: use adjustheap and recalculation */
1552 ev_periodic_stop (EV_A_ w); 1895 ev_periodic_stop (EV_A_ w);
1553 ev_periodic_start (EV_A_ w); 1896 ev_periodic_start (EV_A_ w);
1554} 1897}
1555#endif 1898#endif
1556 1899
1557void
1558ev_idle_start (EV_P_ ev_idle *w)
1559{
1560 if (expect_false (ev_is_active (w)))
1561 return;
1562
1563 ev_start (EV_A_ (W)w, ++idlecnt);
1564 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1565 idles [idlecnt - 1] = w;
1566}
1567
1568void
1569ev_idle_stop (EV_P_ ev_idle *w)
1570{
1571 ev_clear_pending (EV_A_ (W)w);
1572 if (expect_false (!ev_is_active (w)))
1573 return;
1574
1575 {
1576 int active = ((W)w)->active;
1577 idles [active - 1] = idles [--idlecnt];
1578 ((W)idles [active - 1])->active = active;
1579 }
1580
1581 ev_stop (EV_A_ (W)w);
1582}
1583
1584void
1585ev_prepare_start (EV_P_ ev_prepare *w)
1586{
1587 if (expect_false (ev_is_active (w)))
1588 return;
1589
1590 ev_start (EV_A_ (W)w, ++preparecnt);
1591 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1592 prepares [preparecnt - 1] = w;
1593}
1594
1595void
1596ev_prepare_stop (EV_P_ ev_prepare *w)
1597{
1598 ev_clear_pending (EV_A_ (W)w);
1599 if (expect_false (!ev_is_active (w)))
1600 return;
1601
1602 {
1603 int active = ((W)w)->active;
1604 prepares [active - 1] = prepares [--preparecnt];
1605 ((W)prepares [active - 1])->active = active;
1606 }
1607
1608 ev_stop (EV_A_ (W)w);
1609}
1610
1611void
1612ev_check_start (EV_P_ ev_check *w)
1613{
1614 if (expect_false (ev_is_active (w)))
1615 return;
1616
1617 ev_start (EV_A_ (W)w, ++checkcnt);
1618 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1619 checks [checkcnt - 1] = w;
1620}
1621
1622void
1623ev_check_stop (EV_P_ ev_check *w)
1624{
1625 ev_clear_pending (EV_A_ (W)w);
1626 if (expect_false (!ev_is_active (w)))
1627 return;
1628
1629 {
1630 int active = ((W)w)->active;
1631 checks [active - 1] = checks [--checkcnt];
1632 ((W)checks [active - 1])->active = active;
1633 }
1634
1635 ev_stop (EV_A_ (W)w);
1636}
1637
1638#ifndef SA_RESTART 1900#ifndef SA_RESTART
1639# define SA_RESTART 0 1901# define SA_RESTART 0
1640#endif 1902#endif
1641 1903
1642void 1904void noinline
1643ev_signal_start (EV_P_ ev_signal *w) 1905ev_signal_start (EV_P_ ev_signal *w)
1644{ 1906{
1645#if EV_MULTIPLICITY 1907#if EV_MULTIPLICITY
1646 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1908 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1647#endif 1909#endif
1648 if (expect_false (ev_is_active (w))) 1910 if (expect_false (ev_is_active (w)))
1649 return; 1911 return;
1650 1912
1651 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1913 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1652 1914
1915 evpipe_init (EV_A);
1916
1917 {
1918#ifndef _WIN32
1919 sigset_t full, prev;
1920 sigfillset (&full);
1921 sigprocmask (SIG_SETMASK, &full, &prev);
1922#endif
1923
1924 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1925
1926#ifndef _WIN32
1927 sigprocmask (SIG_SETMASK, &prev, 0);
1928#endif
1929 }
1930
1653 ev_start (EV_A_ (W)w, 1); 1931 ev_start (EV_A_ (W)w, 1);
1654 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1655 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1932 wlist_add (&signals [w->signum - 1].head, (WL)w);
1656 1933
1657 if (!((WL)w)->next) 1934 if (!((WL)w)->next)
1658 { 1935 {
1659#if _WIN32 1936#if _WIN32
1660 signal (w->signum, sighandler); 1937 signal (w->signum, sighandler);
… …
1666 sigaction (w->signum, &sa, 0); 1943 sigaction (w->signum, &sa, 0);
1667#endif 1944#endif
1668 } 1945 }
1669} 1946}
1670 1947
1671void 1948void noinline
1672ev_signal_stop (EV_P_ ev_signal *w) 1949ev_signal_stop (EV_P_ ev_signal *w)
1673{ 1950{
1674 ev_clear_pending (EV_A_ (W)w); 1951 clear_pending (EV_A_ (W)w);
1675 if (expect_false (!ev_is_active (w))) 1952 if (expect_false (!ev_is_active (w)))
1676 return; 1953 return;
1677 1954
1678 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1955 wlist_del (&signals [w->signum - 1].head, (WL)w);
1679 ev_stop (EV_A_ (W)w); 1956 ev_stop (EV_A_ (W)w);
1680 1957
1681 if (!signals [w->signum - 1].head) 1958 if (!signals [w->signum - 1].head)
1682 signal (w->signum, SIG_DFL); 1959 signal (w->signum, SIG_DFL);
1683} 1960}
… …
1690#endif 1967#endif
1691 if (expect_false (ev_is_active (w))) 1968 if (expect_false (ev_is_active (w)))
1692 return; 1969 return;
1693 1970
1694 ev_start (EV_A_ (W)w, 1); 1971 ev_start (EV_A_ (W)w, 1);
1695 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1972 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1696} 1973}
1697 1974
1698void 1975void
1699ev_child_stop (EV_P_ ev_child *w) 1976ev_child_stop (EV_P_ ev_child *w)
1700{ 1977{
1701 ev_clear_pending (EV_A_ (W)w); 1978 clear_pending (EV_A_ (W)w);
1702 if (expect_false (!ev_is_active (w))) 1979 if (expect_false (!ev_is_active (w)))
1703 return; 1980 return;
1704 1981
1705 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1982 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1706 ev_stop (EV_A_ (W)w); 1983 ev_stop (EV_A_ (W)w);
1707} 1984}
1708 1985
1709#if EV_EMBED_ENABLE 1986#if EV_STAT_ENABLE
1987
1988# ifdef _WIN32
1989# undef lstat
1990# define lstat(a,b) _stati64 (a,b)
1991# endif
1992
1993#define DEF_STAT_INTERVAL 5.0074891
1994#define MIN_STAT_INTERVAL 0.1074891
1995
1996static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1997
1998#if EV_USE_INOTIFY
1999# define EV_INOTIFY_BUFSIZE 8192
2000
1710void noinline 2001static void noinline
1711ev_embed_sweep (EV_P_ ev_embed *w) 2002infy_add (EV_P_ ev_stat *w)
1712{ 2003{
1713 ev_loop (w->loop, EVLOOP_NONBLOCK); 2004 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2005
2006 if (w->wd < 0)
2007 {
2008 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2009
2010 /* monitor some parent directory for speedup hints */
2011 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2012 {
2013 char path [4096];
2014 strcpy (path, w->path);
2015
2016 do
2017 {
2018 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2019 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2020
2021 char *pend = strrchr (path, '/');
2022
2023 if (!pend)
2024 break; /* whoops, no '/', complain to your admin */
2025
2026 *pend = 0;
2027 w->wd = inotify_add_watch (fs_fd, path, mask);
2028 }
2029 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2030 }
2031 }
2032 else
2033 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2034
2035 if (w->wd >= 0)
2036 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2037}
2038
2039static void noinline
2040infy_del (EV_P_ ev_stat *w)
2041{
2042 int slot;
2043 int wd = w->wd;
2044
2045 if (wd < 0)
2046 return;
2047
2048 w->wd = -2;
2049 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
2050 wlist_del (&fs_hash [slot].head, (WL)w);
2051
2052 /* remove this watcher, if others are watching it, they will rearm */
2053 inotify_rm_watch (fs_fd, wd);
2054}
2055
2056static void noinline
2057infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2058{
2059 if (slot < 0)
2060 /* overflow, need to check for all hahs slots */
2061 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2062 infy_wd (EV_A_ slot, wd, ev);
2063 else
2064 {
2065 WL w_;
2066
2067 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
2068 {
2069 ev_stat *w = (ev_stat *)w_;
2070 w_ = w_->next; /* lets us remove this watcher and all before it */
2071
2072 if (w->wd == wd || wd == -1)
2073 {
2074 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2075 {
2076 w->wd = -1;
2077 infy_add (EV_A_ w); /* re-add, no matter what */
2078 }
2079
2080 stat_timer_cb (EV_A_ &w->timer, 0);
2081 }
2082 }
2083 }
1714} 2084}
1715 2085
1716static void 2086static void
1717embed_cb (EV_P_ ev_io *io, int revents) 2087infy_cb (EV_P_ ev_io *w, int revents)
1718{ 2088{
1719 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2089 char buf [EV_INOTIFY_BUFSIZE];
2090 struct inotify_event *ev = (struct inotify_event *)buf;
2091 int ofs;
2092 int len = read (fs_fd, buf, sizeof (buf));
1720 2093
1721 if (ev_cb (w)) 2094 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1722 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2095 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1723 else
1724 ev_embed_sweep (loop, w);
1725} 2096}
1726 2097
1727void 2098void inline_size
1728ev_embed_start (EV_P_ ev_embed *w) 2099infy_init (EV_P)
1729{ 2100{
1730 if (expect_false (ev_is_active (w))) 2101 if (fs_fd != -2)
1731 return; 2102 return;
1732 2103
2104 fs_fd = inotify_init ();
2105
2106 if (fs_fd >= 0)
1733 { 2107 {
1734 struct ev_loop *loop = w->loop; 2108 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1735 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2109 ev_set_priority (&fs_w, EV_MAXPRI);
1736 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1737 }
1738
1739 ev_set_priority (&w->io, ev_priority (w));
1740 ev_io_start (EV_A_ &w->io); 2110 ev_io_start (EV_A_ &fs_w);
1741 2111 }
1742 ev_start (EV_A_ (W)w, 1);
1743} 2112}
1744 2113
1745void 2114void inline_size
1746ev_embed_stop (EV_P_ ev_embed *w) 2115infy_fork (EV_P)
1747{ 2116{
1748 ev_clear_pending (EV_A_ (W)w); 2117 int slot;
1749 if (expect_false (!ev_is_active (w)))
1750 return;
1751 2118
1752 ev_io_stop (EV_A_ &w->io); 2119 if (fs_fd < 0)
2120 return;
1753 2121
1754 ev_stop (EV_A_ (W)w); 2122 close (fs_fd);
1755} 2123 fs_fd = inotify_init ();
1756#endif
1757 2124
1758#if EV_STAT_ENABLE 2125 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2126 {
2127 WL w_ = fs_hash [slot].head;
2128 fs_hash [slot].head = 0;
1759 2129
1760# ifdef _WIN32 2130 while (w_)
1761# define lstat(a,b) stat(a,b) 2131 {
2132 ev_stat *w = (ev_stat *)w_;
2133 w_ = w_->next; /* lets us add this watcher */
2134
2135 w->wd = -1;
2136
2137 if (fs_fd >= 0)
2138 infy_add (EV_A_ w); /* re-add, no matter what */
2139 else
2140 ev_timer_start (EV_A_ &w->timer);
2141 }
2142
2143 }
2144}
2145
1762# endif 2146#endif
1763 2147
1764void 2148void
1765ev_stat_stat (EV_P_ ev_stat *w) 2149ev_stat_stat (EV_P_ ev_stat *w)
1766{ 2150{
1767 if (lstat (w->path, &w->attr) < 0) 2151 if (lstat (w->path, &w->attr) < 0)
1768 w->attr.st_nlink = 0; 2152 w->attr.st_nlink = 0;
1769 else if (!w->attr.st_nlink) 2153 else if (!w->attr.st_nlink)
1770 w->attr.st_nlink = 1; 2154 w->attr.st_nlink = 1;
1771} 2155}
1772 2156
1773static void 2157static void noinline
1774stat_timer_cb (EV_P_ ev_timer *w_, int revents) 2158stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1775{ 2159{
1776 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 2160 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1777 2161
1778 /* we copy this here each the time so that */ 2162 /* we copy this here each the time so that */
1779 /* prev has the old value when the callback gets invoked */ 2163 /* prev has the old value when the callback gets invoked */
1780 w->prev = w->attr; 2164 w->prev = w->attr;
1781 ev_stat_stat (EV_A_ w); 2165 ev_stat_stat (EV_A_ w);
1782 2166
1783 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) 2167 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2168 if (
2169 w->prev.st_dev != w->attr.st_dev
2170 || w->prev.st_ino != w->attr.st_ino
2171 || w->prev.st_mode != w->attr.st_mode
2172 || w->prev.st_nlink != w->attr.st_nlink
2173 || w->prev.st_uid != w->attr.st_uid
2174 || w->prev.st_gid != w->attr.st_gid
2175 || w->prev.st_rdev != w->attr.st_rdev
2176 || w->prev.st_size != w->attr.st_size
2177 || w->prev.st_atime != w->attr.st_atime
2178 || w->prev.st_mtime != w->attr.st_mtime
2179 || w->prev.st_ctime != w->attr.st_ctime
2180 ) {
2181 #if EV_USE_INOTIFY
2182 infy_del (EV_A_ w);
2183 infy_add (EV_A_ w);
2184 ev_stat_stat (EV_A_ w); /* avoid race... */
2185 #endif
2186
1784 ev_feed_event (EV_A_ w, EV_STAT); 2187 ev_feed_event (EV_A_ w, EV_STAT);
2188 }
1785} 2189}
1786 2190
1787void 2191void
1788ev_stat_start (EV_P_ ev_stat *w) 2192ev_stat_start (EV_P_ ev_stat *w)
1789{ 2193{
… …
1794 memset (&w->prev, 0, sizeof (ev_statdata)); 2198 memset (&w->prev, 0, sizeof (ev_statdata));
1795 memset (&w->attr, 0, sizeof (ev_statdata)); 2199 memset (&w->attr, 0, sizeof (ev_statdata));
1796 2200
1797 ev_stat_stat (EV_A_ w); 2201 ev_stat_stat (EV_A_ w);
1798 2202
2203 if (w->interval < MIN_STAT_INTERVAL)
2204 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2205
1799 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 2206 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1800 ev_set_priority (&w->timer, ev_priority (w)); 2207 ev_set_priority (&w->timer, ev_priority (w));
2208
2209#if EV_USE_INOTIFY
2210 infy_init (EV_A);
2211
2212 if (fs_fd >= 0)
2213 infy_add (EV_A_ w);
2214 else
2215#endif
1801 ev_timer_start (EV_A_ &w->timer); 2216 ev_timer_start (EV_A_ &w->timer);
1802 2217
1803 ev_start (EV_A_ (W)w, 1); 2218 ev_start (EV_A_ (W)w, 1);
1804} 2219}
1805 2220
1806void 2221void
1807ev_stat_stop (EV_P_ ev_stat *w) 2222ev_stat_stop (EV_P_ ev_stat *w)
1808{ 2223{
1809 ev_clear_pending (EV_A_ (W)w); 2224 clear_pending (EV_A_ (W)w);
1810 if (expect_false (!ev_is_active (w))) 2225 if (expect_false (!ev_is_active (w)))
1811 return; 2226 return;
1812 2227
2228#if EV_USE_INOTIFY
2229 infy_del (EV_A_ w);
2230#endif
1813 ev_timer_stop (EV_A_ &w->timer); 2231 ev_timer_stop (EV_A_ &w->timer);
1814 2232
1815 ev_stop (EV_A_ (W)w); 2233 ev_stop (EV_A_ (W)w);
2234}
2235#endif
2236
2237#if EV_IDLE_ENABLE
2238void
2239ev_idle_start (EV_P_ ev_idle *w)
2240{
2241 if (expect_false (ev_is_active (w)))
2242 return;
2243
2244 pri_adjust (EV_A_ (W)w);
2245
2246 {
2247 int active = ++idlecnt [ABSPRI (w)];
2248
2249 ++idleall;
2250 ev_start (EV_A_ (W)w, active);
2251
2252 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2253 idles [ABSPRI (w)][active - 1] = w;
2254 }
2255}
2256
2257void
2258ev_idle_stop (EV_P_ ev_idle *w)
2259{
2260 clear_pending (EV_A_ (W)w);
2261 if (expect_false (!ev_is_active (w)))
2262 return;
2263
2264 {
2265 int active = ((W)w)->active;
2266
2267 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2268 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2269
2270 ev_stop (EV_A_ (W)w);
2271 --idleall;
2272 }
2273}
2274#endif
2275
2276void
2277ev_prepare_start (EV_P_ ev_prepare *w)
2278{
2279 if (expect_false (ev_is_active (w)))
2280 return;
2281
2282 ev_start (EV_A_ (W)w, ++preparecnt);
2283 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2284 prepares [preparecnt - 1] = w;
2285}
2286
2287void
2288ev_prepare_stop (EV_P_ ev_prepare *w)
2289{
2290 clear_pending (EV_A_ (W)w);
2291 if (expect_false (!ev_is_active (w)))
2292 return;
2293
2294 {
2295 int active = ((W)w)->active;
2296 prepares [active - 1] = prepares [--preparecnt];
2297 ((W)prepares [active - 1])->active = active;
2298 }
2299
2300 ev_stop (EV_A_ (W)w);
2301}
2302
2303void
2304ev_check_start (EV_P_ ev_check *w)
2305{
2306 if (expect_false (ev_is_active (w)))
2307 return;
2308
2309 ev_start (EV_A_ (W)w, ++checkcnt);
2310 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2311 checks [checkcnt - 1] = w;
2312}
2313
2314void
2315ev_check_stop (EV_P_ ev_check *w)
2316{
2317 clear_pending (EV_A_ (W)w);
2318 if (expect_false (!ev_is_active (w)))
2319 return;
2320
2321 {
2322 int active = ((W)w)->active;
2323 checks [active - 1] = checks [--checkcnt];
2324 ((W)checks [active - 1])->active = active;
2325 }
2326
2327 ev_stop (EV_A_ (W)w);
2328}
2329
2330#if EV_EMBED_ENABLE
2331void noinline
2332ev_embed_sweep (EV_P_ ev_embed *w)
2333{
2334 ev_loop (w->other, EVLOOP_NONBLOCK);
2335}
2336
2337static void
2338embed_io_cb (EV_P_ ev_io *io, int revents)
2339{
2340 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2341
2342 if (ev_cb (w))
2343 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2344 else
2345 ev_loop (w->other, EVLOOP_NONBLOCK);
2346}
2347
2348static void
2349embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2350{
2351 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2352
2353 {
2354 struct ev_loop *loop = w->other;
2355
2356 while (fdchangecnt)
2357 {
2358 fd_reify (EV_A);
2359 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2360 }
2361 }
2362}
2363
2364#if 0
2365static void
2366embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2367{
2368 ev_idle_stop (EV_A_ idle);
2369}
2370#endif
2371
2372void
2373ev_embed_start (EV_P_ ev_embed *w)
2374{
2375 if (expect_false (ev_is_active (w)))
2376 return;
2377
2378 {
2379 struct ev_loop *loop = w->other;
2380 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2381 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2382 }
2383
2384 ev_set_priority (&w->io, ev_priority (w));
2385 ev_io_start (EV_A_ &w->io);
2386
2387 ev_prepare_init (&w->prepare, embed_prepare_cb);
2388 ev_set_priority (&w->prepare, EV_MINPRI);
2389 ev_prepare_start (EV_A_ &w->prepare);
2390
2391 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2392
2393 ev_start (EV_A_ (W)w, 1);
2394}
2395
2396void
2397ev_embed_stop (EV_P_ ev_embed *w)
2398{
2399 clear_pending (EV_A_ (W)w);
2400 if (expect_false (!ev_is_active (w)))
2401 return;
2402
2403 ev_io_stop (EV_A_ &w->io);
2404 ev_prepare_stop (EV_A_ &w->prepare);
2405
2406 ev_stop (EV_A_ (W)w);
2407}
2408#endif
2409
2410#if EV_FORK_ENABLE
2411void
2412ev_fork_start (EV_P_ ev_fork *w)
2413{
2414 if (expect_false (ev_is_active (w)))
2415 return;
2416
2417 ev_start (EV_A_ (W)w, ++forkcnt);
2418 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2419 forks [forkcnt - 1] = w;
2420}
2421
2422void
2423ev_fork_stop (EV_P_ ev_fork *w)
2424{
2425 clear_pending (EV_A_ (W)w);
2426 if (expect_false (!ev_is_active (w)))
2427 return;
2428
2429 {
2430 int active = ((W)w)->active;
2431 forks [active - 1] = forks [--forkcnt];
2432 ((W)forks [active - 1])->active = active;
2433 }
2434
2435 ev_stop (EV_A_ (W)w);
2436}
2437#endif
2438
2439#if EV_ASYNC_ENABLE
2440void
2441ev_async_start (EV_P_ ev_async *w)
2442{
2443 if (expect_false (ev_is_active (w)))
2444 return;
2445
2446 evpipe_init (EV_A);
2447
2448 ev_start (EV_A_ (W)w, ++asynccnt);
2449 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2450 asyncs [asynccnt - 1] = w;
2451}
2452
2453void
2454ev_async_stop (EV_P_ ev_async *w)
2455{
2456 clear_pending (EV_A_ (W)w);
2457 if (expect_false (!ev_is_active (w)))
2458 return;
2459
2460 {
2461 int active = ((W)w)->active;
2462 asyncs [active - 1] = asyncs [--asynccnt];
2463 ((W)asyncs [active - 1])->active = active;
2464 }
2465
2466 ev_stop (EV_A_ (W)w);
2467}
2468
2469void
2470ev_async_send (EV_P_ ev_async *w)
2471{
2472 w->sent = 1;
2473 evpipe_write (EV_A_ 0, 1);
1816} 2474}
1817#endif 2475#endif
1818 2476
1819/*****************************************************************************/ 2477/*****************************************************************************/
1820 2478
… …
1878 ev_timer_set (&once->to, timeout, 0.); 2536 ev_timer_set (&once->to, timeout, 0.);
1879 ev_timer_start (EV_A_ &once->to); 2537 ev_timer_start (EV_A_ &once->to);
1880 } 2538 }
1881} 2539}
1882 2540
2541#if EV_MULTIPLICITY
2542 #include "ev_wrap.h"
2543#endif
2544
1883#ifdef __cplusplus 2545#ifdef __cplusplus
1884} 2546}
1885#endif 2547#endif
1886 2548

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