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Comparing libev/ev.c (file contents):
Revision 1.190 by root, Fri Dec 21 01:26:04 2007 UTC vs.
Revision 1.300 by root, Tue Jul 14 20:31:21 2009 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) 2007,2008,2009 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
35 43
44/* this big block deduces configuration from config.h */
36#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
38# include EV_CONFIG_H 47# include EV_CONFIG_H
39# else 48# else
40# include "config.h" 49# include "config.h"
41# endif 50# endif
42 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
43# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
44# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
45# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
46# endif 69# endif
47# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
48# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
49# endif 72# endif
50# else 73# else
51# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
53# endif 76# endif
54# ifndef EV_USE_REALTIME 77# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0 78# define EV_USE_REALTIME 0
79# endif
80# endif
81
82# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1
85# else
86# define EV_USE_NANOSLEEP 0
56# endif 87# endif
57# endif 88# endif
58 89
59# ifndef EV_USE_SELECT 90# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H 91# if HAVE_SELECT && HAVE_SYS_SELECT_H
… …
102# else 133# else
103# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
104# endif 135# endif
105# endif 136# endif
106 137
138# ifndef EV_USE_EVENTFD
139# if HAVE_EVENTFD
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif
144# endif
145
107#endif 146#endif
108 147
109#include <math.h> 148#include <math.h>
110#include <stdlib.h> 149#include <stdlib.h>
111#include <fcntl.h> 150#include <fcntl.h>
… …
129#ifndef _WIN32 168#ifndef _WIN32
130# include <sys/time.h> 169# include <sys/time.h>
131# include <sys/wait.h> 170# include <sys/wait.h>
132# include <unistd.h> 171# include <unistd.h>
133#else 172#else
173# include <io.h>
134# define WIN32_LEAN_AND_MEAN 174# define WIN32_LEAN_AND_MEAN
135# include <windows.h> 175# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET 176# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1 177# define EV_SELECT_IS_WINSOCKET 1
138# endif 178# endif
139#endif 179#endif
140 180
141/**/ 181/* this block tries to deduce configuration from header-defined symbols and defaults */
182
183#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1
186# else
187# define EV_USE_CLOCK_SYSCALL 0
188# endif
189#endif
142 190
143#ifndef EV_USE_MONOTONIC 191#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1
194# else
144# define EV_USE_MONOTONIC 0 195# define EV_USE_MONOTONIC 0
196# endif
145#endif 197#endif
146 198
147#ifndef EV_USE_REALTIME 199#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0 200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif
202
203#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1
206# else
207# define EV_USE_NANOSLEEP 0
208# endif
149#endif 209#endif
150 210
151#ifndef EV_USE_SELECT 211#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1 212# define EV_USE_SELECT 1
153#endif 213#endif
… …
159# define EV_USE_POLL 1 219# define EV_USE_POLL 1
160# endif 220# endif
161#endif 221#endif
162 222
163#ifndef EV_USE_EPOLL 223#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1
226# else
164# define EV_USE_EPOLL 0 227# define EV_USE_EPOLL 0
228# endif
165#endif 229#endif
166 230
167#ifndef EV_USE_KQUEUE 231#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0 232# define EV_USE_KQUEUE 0
169#endif 233#endif
… …
171#ifndef EV_USE_PORT 235#ifndef EV_USE_PORT
172# define EV_USE_PORT 0 236# define EV_USE_PORT 0
173#endif 237#endif
174 238
175#ifndef EV_USE_INOTIFY 239#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1
242# else
176# define EV_USE_INOTIFY 0 243# define EV_USE_INOTIFY 0
244# endif
177#endif 245#endif
178 246
179#ifndef EV_PID_HASHSIZE 247#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL 248# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1 249# define EV_PID_HASHSIZE 1
… …
190# else 258# else
191# define EV_INOTIFY_HASHSIZE 16 259# define EV_INOTIFY_HASHSIZE 16
192# endif 260# endif
193#endif 261#endif
194 262
195/**/ 263#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1
266# else
267# define EV_USE_EVENTFD 0
268# endif
269#endif
270
271#if 0 /* debugging */
272# define EV_VERIFY 3
273# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1
275#endif
276
277#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL
279#endif
280
281#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL
283#endif
284
285#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL
287#endif
288
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL
292# include <syscall.h>
293# ifdef SYS_clock_gettime
294# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
295# undef EV_USE_MONOTONIC
296# define EV_USE_MONOTONIC 1
297# else
298# undef EV_USE_CLOCK_SYSCALL
299# define EV_USE_CLOCK_SYSCALL 0
300# endif
301#endif
302
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196 304
197#ifndef CLOCK_MONOTONIC 305#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC 306# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0 307# define EV_USE_MONOTONIC 0
200#endif 308#endif
… …
207#if !EV_STAT_ENABLE 315#if !EV_STAT_ENABLE
208# undef EV_USE_INOTIFY 316# undef EV_USE_INOTIFY
209# define EV_USE_INOTIFY 0 317# define EV_USE_INOTIFY 0
210#endif 318#endif
211 319
320#if !EV_USE_NANOSLEEP
321# ifndef _WIN32
322# include <sys/select.h>
323# endif
324#endif
325
212#if EV_USE_INOTIFY 326#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h>
213# include <sys/inotify.h> 329# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY
333# define EV_USE_INOTIFY 0
334# endif
214#endif 335#endif
215 336
216#if EV_SELECT_IS_WINSOCKET 337#if EV_SELECT_IS_WINSOCKET
217# include <winsock.h> 338# include <winsock.h>
218#endif 339#endif
219 340
341#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h>
344# ifdef __cplusplus
345extern "C" {
346# endif
347int eventfd (unsigned int initval, int flags);
348# ifdef __cplusplus
349}
350# endif
351#endif
352
220/**/ 353/**/
354
355#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
357#else
358# define EV_FREQUENT_CHECK do { } while (0)
359#endif
221 360
222/* 361/*
223 * This is used to avoid floating point rounding problems. 362 * This is used to avoid floating point rounding problems.
224 * It is added to ev_rt_now when scheduling periodics 363 * It is added to ev_rt_now when scheduling periodics
225 * to ensure progress, time-wise, even when rounding 364 * to ensure progress, time-wise, even when rounding
… …
237# define expect(expr,value) __builtin_expect ((expr),(value)) 376# define expect(expr,value) __builtin_expect ((expr),(value))
238# define noinline __attribute__ ((noinline)) 377# define noinline __attribute__ ((noinline))
239#else 378#else
240# define expect(expr,value) (expr) 379# define expect(expr,value) (expr)
241# define noinline 380# define noinline
242# if __STDC_VERSION__ < 199901L 381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243# define inline 382# define inline
244# endif 383# endif
245#endif 384#endif
246 385
247#define expect_false(expr) expect ((expr) != 0, 0) 386#define expect_false(expr) expect ((expr) != 0, 0)
… …
252# define inline_speed static noinline 391# define inline_speed static noinline
253#else 392#else
254# define inline_speed static inline 393# define inline_speed static inline
255#endif 394#endif
256 395
257#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397
398#if EV_MINPRI == EV_MAXPRI
399# define ABSPRI(w) (((W)w), 0)
400#else
258#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 401# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
402#endif
259 403
260#define EMPTY /* required for microsofts broken pseudo-c compiler */ 404#define EMPTY /* required for microsofts broken pseudo-c compiler */
261#define EMPTY2(a,b) /* used to suppress some warnings */ 405#define EMPTY2(a,b) /* used to suppress some warnings */
262 406
263typedef ev_watcher *W; 407typedef ev_watcher *W;
264typedef ev_watcher_list *WL; 408typedef ev_watcher_list *WL;
265typedef ev_watcher_time *WT; 409typedef ev_watcher_time *WT;
266 410
411#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at
413
414#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif
419
420#if EV_USE_MONOTONIC
267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif
268 423
269#ifdef _WIN32 424#ifdef _WIN32
270# include "ev_win32.c" 425# include "ev_win32.c"
271#endif 426#endif
272 427
… …
279{ 434{
280 syserr_cb = cb; 435 syserr_cb = cb;
281} 436}
282 437
283static void noinline 438static void noinline
284syserr (const char *msg) 439ev_syserr (const char *msg)
285{ 440{
286 if (!msg) 441 if (!msg)
287 msg = "(libev) system error"; 442 msg = "(libev) system error";
288 443
289 if (syserr_cb) 444 if (syserr_cb)
… …
293 perror (msg); 448 perror (msg);
294 abort (); 449 abort ();
295 } 450 }
296} 451}
297 452
453static void *
454ev_realloc_emul (void *ptr, long size)
455{
456 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and
458 * the single unix specification, so work around them here.
459 */
460
461 if (size)
462 return realloc (ptr, size);
463
464 free (ptr);
465 return 0;
466}
467
298static void *(*alloc)(void *ptr, long size); 468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
299 469
300void 470void
301ev_set_allocator (void *(*cb)(void *ptr, long size)) 471ev_set_allocator (void *(*cb)(void *ptr, long size))
302{ 472{
303 alloc = cb; 473 alloc = cb;
304} 474}
305 475
306inline_speed void * 476inline_speed void *
307ev_realloc (void *ptr, long size) 477ev_realloc (void *ptr, long size)
308{ 478{
309 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 479 ptr = alloc (ptr, size);
310 480
311 if (!ptr && size) 481 if (!ptr && size)
312 { 482 {
313 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314 abort (); 484 abort ();
… …
320#define ev_malloc(size) ev_realloc (0, (size)) 490#define ev_malloc(size) ev_realloc (0, (size))
321#define ev_free(ptr) ev_realloc ((ptr), 0) 491#define ev_free(ptr) ev_realloc ((ptr), 0)
322 492
323/*****************************************************************************/ 493/*****************************************************************************/
324 494
495/* set in reify when reification needed */
496#define EV_ANFD_REIFY 1
497
498/* file descriptor info structure */
325typedef struct 499typedef struct
326{ 500{
327 WL head; 501 WL head;
328 unsigned char events; 502 unsigned char events; /* the events watched for */
503 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
504 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
329 unsigned char reify; 505 unsigned char unused;
506#if EV_USE_EPOLL
507 unsigned int egen; /* generation counter to counter epoll bugs */
508#endif
330#if EV_SELECT_IS_WINSOCKET 509#if EV_SELECT_IS_WINSOCKET
331 SOCKET handle; 510 SOCKET handle;
332#endif 511#endif
333} ANFD; 512} ANFD;
334 513
514/* stores the pending event set for a given watcher */
335typedef struct 515typedef struct
336{ 516{
337 W w; 517 W w;
338 int events; 518 int events; /* the pending event set for the given watcher */
339} ANPENDING; 519} ANPENDING;
340 520
341#if EV_USE_INOTIFY 521#if EV_USE_INOTIFY
522/* hash table entry per inotify-id */
342typedef struct 523typedef struct
343{ 524{
344 WL head; 525 WL head;
345} ANFS; 526} ANFS;
527#endif
528
529/* Heap Entry */
530#if EV_HEAP_CACHE_AT
531 /* a heap element */
532 typedef struct {
533 ev_tstamp at;
534 WT w;
535 } ANHE;
536
537 #define ANHE_w(he) (he).w /* access watcher, read-write */
538 #define ANHE_at(he) (he).at /* access cached at, read-only */
539 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
540#else
541 /* a heap element */
542 typedef WT ANHE;
543
544 #define ANHE_w(he) (he)
545 #define ANHE_at(he) (he)->at
546 #define ANHE_at_cache(he)
346#endif 547#endif
347 548
348#if EV_MULTIPLICITY 549#if EV_MULTIPLICITY
349 550
350 struct ev_loop 551 struct ev_loop
… …
369 570
370 static int ev_default_loop_ptr; 571 static int ev_default_loop_ptr;
371 572
372#endif 573#endif
373 574
575#if EV_MINIMAL < 2
576# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578# define EV_INVOKE_PENDING invoke_cb (EV_A)
579#else
580# define EV_RELEASE_CB (void)0
581# define EV_ACQUIRE_CB (void)0
582# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
583#endif
584
585#define EVUNLOOP_RECURSE 0x80
586
374/*****************************************************************************/ 587/*****************************************************************************/
375 588
589#ifndef EV_HAVE_EV_TIME
376ev_tstamp 590ev_tstamp
377ev_time (void) 591ev_time (void)
378{ 592{
379#if EV_USE_REALTIME 593#if EV_USE_REALTIME
594 if (expect_true (have_realtime))
595 {
380 struct timespec ts; 596 struct timespec ts;
381 clock_gettime (CLOCK_REALTIME, &ts); 597 clock_gettime (CLOCK_REALTIME, &ts);
382 return ts.tv_sec + ts.tv_nsec * 1e-9; 598 return ts.tv_sec + ts.tv_nsec * 1e-9;
383#else 599 }
600#endif
601
384 struct timeval tv; 602 struct timeval tv;
385 gettimeofday (&tv, 0); 603 gettimeofday (&tv, 0);
386 return tv.tv_sec + tv.tv_usec * 1e-6; 604 return tv.tv_sec + tv.tv_usec * 1e-6;
387#endif
388} 605}
606#endif
389 607
390ev_tstamp inline_size 608inline_size ev_tstamp
391get_clock (void) 609get_clock (void)
392{ 610{
393#if EV_USE_MONOTONIC 611#if EV_USE_MONOTONIC
394 if (expect_true (have_monotonic)) 612 if (expect_true (have_monotonic))
395 { 613 {
… …
408{ 626{
409 return ev_rt_now; 627 return ev_rt_now;
410} 628}
411#endif 629#endif
412 630
413int inline_size 631void
632ev_sleep (ev_tstamp delay)
633{
634 if (delay > 0.)
635 {
636#if EV_USE_NANOSLEEP
637 struct timespec ts;
638
639 ts.tv_sec = (time_t)delay;
640 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
641
642 nanosleep (&ts, 0);
643#elif defined(_WIN32)
644 Sleep ((unsigned long)(delay * 1e3));
645#else
646 struct timeval tv;
647
648 tv.tv_sec = (time_t)delay;
649 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650
651 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
652 /* somehting not guaranteed by newer posix versions, but guaranteed */
653 /* by older ones */
654 select (0, 0, 0, 0, &tv);
655#endif
656 }
657}
658
659/*****************************************************************************/
660
661#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
662
663/* find a suitable new size for the given array, */
664/* hopefully by rounding to a ncie-to-malloc size */
665inline_size int
414array_nextsize (int elem, int cur, int cnt) 666array_nextsize (int elem, int cur, int cnt)
415{ 667{
416 int ncur = cur + 1; 668 int ncur = cur + 1;
417 669
418 do 670 do
419 ncur <<= 1; 671 ncur <<= 1;
420 while (cnt > ncur); 672 while (cnt > ncur);
421 673
422 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 674 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
423 if (elem * ncur > 4096) 675 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
424 { 676 {
425 ncur *= elem; 677 ncur *= elem;
426 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 678 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
427 ncur = ncur - sizeof (void *) * 4; 679 ncur = ncur - sizeof (void *) * 4;
428 ncur /= elem; 680 ncur /= elem;
429 } 681 }
430 682
431 return ncur; 683 return ncur;
… …
435array_realloc (int elem, void *base, int *cur, int cnt) 687array_realloc (int elem, void *base, int *cur, int cnt)
436{ 688{
437 *cur = array_nextsize (elem, *cur, cnt); 689 *cur = array_nextsize (elem, *cur, cnt);
438 return ev_realloc (base, elem * *cur); 690 return ev_realloc (base, elem * *cur);
439} 691}
692
693#define array_init_zero(base,count) \
694 memset ((void *)(base), 0, sizeof (*(base)) * (count))
440 695
441#define array_needsize(type,base,cur,cnt,init) \ 696#define array_needsize(type,base,cur,cnt,init) \
442 if (expect_false ((cnt) > (cur))) \ 697 if (expect_false ((cnt) > (cur))) \
443 { \ 698 { \
444 int ocur_ = (cur); \ 699 int ocur_ = (cur); \
… …
456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 711 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
457 } 712 }
458#endif 713#endif
459 714
460#define array_free(stem, idx) \ 715#define array_free(stem, idx) \
461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 716 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
462 717
463/*****************************************************************************/ 718/*****************************************************************************/
719
720/* dummy callback for pending events */
721static void noinline
722pendingcb (EV_P_ ev_prepare *w, int revents)
723{
724}
464 725
465void noinline 726void noinline
466ev_feed_event (EV_P_ void *w, int revents) 727ev_feed_event (EV_P_ void *w, int revents)
467{ 728{
468 W w_ = (W)w; 729 W w_ = (W)w;
… …
477 pendings [pri][w_->pending - 1].w = w_; 738 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents; 739 pendings [pri][w_->pending - 1].events = revents;
479 } 740 }
480} 741}
481 742
482void inline_speed 743inline_speed void
744feed_reverse (EV_P_ W w)
745{
746 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
747 rfeeds [rfeedcnt++] = w;
748}
749
750inline_size void
751feed_reverse_done (EV_P_ int revents)
752{
753 do
754 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
755 while (rfeedcnt);
756}
757
758inline_speed void
483queue_events (EV_P_ W *events, int eventcnt, int type) 759queue_events (EV_P_ W *events, int eventcnt, int type)
484{ 760{
485 int i; 761 int i;
486 762
487 for (i = 0; i < eventcnt; ++i) 763 for (i = 0; i < eventcnt; ++i)
488 ev_feed_event (EV_A_ events [i], type); 764 ev_feed_event (EV_A_ events [i], type);
489} 765}
490 766
491/*****************************************************************************/ 767/*****************************************************************************/
492 768
493void inline_size 769inline_speed void
494anfds_init (ANFD *base, int count)
495{
496 while (count--)
497 {
498 base->head = 0;
499 base->events = EV_NONE;
500 base->reify = 0;
501
502 ++base;
503 }
504}
505
506void inline_speed
507fd_event (EV_P_ int fd, int revents) 770fd_event_nc (EV_P_ int fd, int revents)
508{ 771{
509 ANFD *anfd = anfds + fd; 772 ANFD *anfd = anfds + fd;
510 ev_io *w; 773 ev_io *w;
511 774
512 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 775 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
516 if (ev) 779 if (ev)
517 ev_feed_event (EV_A_ (W)w, ev); 780 ev_feed_event (EV_A_ (W)w, ev);
518 } 781 }
519} 782}
520 783
784/* do not submit kernel events for fds that have reify set */
785/* because that means they changed while we were polling for new events */
786inline_speed void
787fd_event (EV_P_ int fd, int revents)
788{
789 ANFD *anfd = anfds + fd;
790
791 if (expect_true (!anfd->reify))
792 fd_event_nc (EV_A_ fd, revents);
793}
794
521void 795void
522ev_feed_fd_event (EV_P_ int fd, int revents) 796ev_feed_fd_event (EV_P_ int fd, int revents)
523{ 797{
524 if (fd >= 0 && fd < anfdmax) 798 if (fd >= 0 && fd < anfdmax)
525 fd_event (EV_A_ fd, revents); 799 fd_event_nc (EV_A_ fd, revents);
526} 800}
527 801
528void inline_size 802/* make sure the external fd watch events are in-sync */
803/* with the kernel/libev internal state */
804inline_size void
529fd_reify (EV_P) 805fd_reify (EV_P)
530{ 806{
531 int i; 807 int i;
532 808
533 for (i = 0; i < fdchangecnt; ++i) 809 for (i = 0; i < fdchangecnt; ++i)
… …
542 events |= (unsigned char)w->events; 818 events |= (unsigned char)w->events;
543 819
544#if EV_SELECT_IS_WINSOCKET 820#if EV_SELECT_IS_WINSOCKET
545 if (events) 821 if (events)
546 { 822 {
547 unsigned long argp; 823 unsigned long arg;
824 #ifdef EV_FD_TO_WIN32_HANDLE
825 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
826 #else
548 anfd->handle = _get_osfhandle (fd); 827 anfd->handle = _get_osfhandle (fd);
828 #endif
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 829 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
550 } 830 }
551#endif 831#endif
552 832
553 { 833 {
554 unsigned char o_events = anfd->events; 834 unsigned char o_events = anfd->events;
555 unsigned char o_reify = anfd->reify; 835 unsigned char o_reify = anfd->reify;
556 836
557 anfd->reify = 0; 837 anfd->reify = 0;
558 anfd->events = events; 838 anfd->events = events;
559 839
560 if (o_events != events || o_reify & EV_IOFDSET) 840 if (o_events != events || o_reify & EV__IOFDSET)
561 backend_modify (EV_A_ fd, o_events, events); 841 backend_modify (EV_A_ fd, o_events, events);
562 } 842 }
563 } 843 }
564 844
565 fdchangecnt = 0; 845 fdchangecnt = 0;
566} 846}
567 847
568void inline_size 848/* something about the given fd changed */
849inline_size void
569fd_change (EV_P_ int fd, int flags) 850fd_change (EV_P_ int fd, int flags)
570{ 851{
571 unsigned char reify = anfds [fd].reify; 852 unsigned char reify = anfds [fd].reify;
572 anfds [fd].reify |= flags; 853 anfds [fd].reify |= flags;
573 854
… …
577 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 858 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
578 fdchanges [fdchangecnt - 1] = fd; 859 fdchanges [fdchangecnt - 1] = fd;
579 } 860 }
580} 861}
581 862
582void inline_speed 863/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
864inline_speed void
583fd_kill (EV_P_ int fd) 865fd_kill (EV_P_ int fd)
584{ 866{
585 ev_io *w; 867 ev_io *w;
586 868
587 while ((w = (ev_io *)anfds [fd].head)) 869 while ((w = (ev_io *)anfds [fd].head))
… …
589 ev_io_stop (EV_A_ w); 871 ev_io_stop (EV_A_ w);
590 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 872 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
591 } 873 }
592} 874}
593 875
594int inline_size 876/* check whether the given fd is atcually valid, for error recovery */
877inline_size int
595fd_valid (int fd) 878fd_valid (int fd)
596{ 879{
597#ifdef _WIN32 880#ifdef _WIN32
598 return _get_osfhandle (fd) != -1; 881 return _get_osfhandle (fd) != -1;
599#else 882#else
… …
607{ 890{
608 int fd; 891 int fd;
609 892
610 for (fd = 0; fd < anfdmax; ++fd) 893 for (fd = 0; fd < anfdmax; ++fd)
611 if (anfds [fd].events) 894 if (anfds [fd].events)
612 if (!fd_valid (fd) == -1 && errno == EBADF) 895 if (!fd_valid (fd) && errno == EBADF)
613 fd_kill (EV_A_ fd); 896 fd_kill (EV_A_ fd);
614} 897}
615 898
616/* called on ENOMEM in select/poll to kill some fds and retry */ 899/* called on ENOMEM in select/poll to kill some fds and retry */
617static void noinline 900static void noinline
… …
635 918
636 for (fd = 0; fd < anfdmax; ++fd) 919 for (fd = 0; fd < anfdmax; ++fd)
637 if (anfds [fd].events) 920 if (anfds [fd].events)
638 { 921 {
639 anfds [fd].events = 0; 922 anfds [fd].events = 0;
923 anfds [fd].emask = 0;
640 fd_change (EV_A_ fd, EV_IOFDSET | 1); 924 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
641 } 925 }
642} 926}
643 927
644/*****************************************************************************/ 928/*****************************************************************************/
645 929
646void inline_speed 930/*
647upheap (WT *heap, int k) 931 * the heap functions want a real array index. array index 0 uis guaranteed to not
648{ 932 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
649 WT w = heap [k]; 933 * the branching factor of the d-tree.
934 */
650 935
651 while (k) 936/*
652 { 937 * at the moment we allow libev the luxury of two heaps,
653 int p = (k - 1) >> 1; 938 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
939 * which is more cache-efficient.
940 * the difference is about 5% with 50000+ watchers.
941 */
942#if EV_USE_4HEAP
654 943
655 if (heap [p]->at <= w->at) 944#define DHEAP 4
945#define HEAP0 (DHEAP - 1) /* index of first element in heap */
946#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
947#define UPHEAP_DONE(p,k) ((p) == (k))
948
949/* away from the root */
950inline_speed void
951downheap (ANHE *heap, int N, int k)
952{
953 ANHE he = heap [k];
954 ANHE *E = heap + N + HEAP0;
955
956 for (;;)
957 {
958 ev_tstamp minat;
959 ANHE *minpos;
960 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
961
962 /* find minimum child */
963 if (expect_true (pos + DHEAP - 1 < E))
964 {
965 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
966 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
967 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
968 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
969 }
970 else if (pos < E)
971 {
972 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
973 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
974 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
975 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
976 }
977 else
656 break; 978 break;
657 979
980 if (ANHE_at (he) <= minat)
981 break;
982
983 heap [k] = *minpos;
984 ev_active (ANHE_w (*minpos)) = k;
985
986 k = minpos - heap;
987 }
988
989 heap [k] = he;
990 ev_active (ANHE_w (he)) = k;
991}
992
993#else /* 4HEAP */
994
995#define HEAP0 1
996#define HPARENT(k) ((k) >> 1)
997#define UPHEAP_DONE(p,k) (!(p))
998
999/* away from the root */
1000inline_speed void
1001downheap (ANHE *heap, int N, int k)
1002{
1003 ANHE he = heap [k];
1004
1005 for (;;)
1006 {
1007 int c = k << 1;
1008
1009 if (c > N + HEAP0 - 1)
1010 break;
1011
1012 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013 ? 1 : 0;
1014
1015 if (ANHE_at (he) <= ANHE_at (heap [c]))
1016 break;
1017
1018 heap [k] = heap [c];
1019 ev_active (ANHE_w (heap [k])) = k;
1020
1021 k = c;
1022 }
1023
1024 heap [k] = he;
1025 ev_active (ANHE_w (he)) = k;
1026}
1027#endif
1028
1029/* towards the root */
1030inline_speed void
1031upheap (ANHE *heap, int k)
1032{
1033 ANHE he = heap [k];
1034
1035 for (;;)
1036 {
1037 int p = HPARENT (k);
1038
1039 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
1040 break;
1041
658 heap [k] = heap [p]; 1042 heap [k] = heap [p];
659 ((W)heap [k])->active = k + 1; 1043 ev_active (ANHE_w (heap [k])) = k;
660 k = p; 1044 k = p;
661 } 1045 }
662 1046
663 heap [k] = w; 1047 heap [k] = he;
664 ((W)heap [k])->active = k + 1; 1048 ev_active (ANHE_w (he)) = k;
665} 1049}
666 1050
667void inline_speed 1051/* move an element suitably so it is in a correct place */
668downheap (WT *heap, int N, int k) 1052inline_size void
669{
670 WT w = heap [k];
671
672 for (;;)
673 {
674 int c = (k << 1) + 1;
675
676 if (c >= N)
677 break;
678
679 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
680 ? 1 : 0;
681
682 if (w->at <= heap [c]->at)
683 break;
684
685 heap [k] = heap [c];
686 ((W)heap [k])->active = k + 1;
687
688 k = c;
689 }
690
691 heap [k] = w;
692 ((W)heap [k])->active = k + 1;
693}
694
695void inline_size
696adjustheap (WT *heap, int N, int k) 1053adjustheap (ANHE *heap, int N, int k)
697{ 1054{
1055 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
698 upheap (heap, k); 1056 upheap (heap, k);
1057 else
699 downheap (heap, N, k); 1058 downheap (heap, N, k);
1059}
1060
1061/* rebuild the heap: this function is used only once and executed rarely */
1062inline_size void
1063reheap (ANHE *heap, int N)
1064{
1065 int i;
1066
1067 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1068 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1069 for (i = 0; i < N; ++i)
1070 upheap (heap, i + HEAP0);
700} 1071}
701 1072
702/*****************************************************************************/ 1073/*****************************************************************************/
703 1074
1075/* associate signal watchers to a signal signal */
704typedef struct 1076typedef struct
705{ 1077{
706 WL head; 1078 WL head;
707 sig_atomic_t volatile gotsig; 1079 EV_ATOMIC_T gotsig;
708} ANSIG; 1080} ANSIG;
709 1081
710static ANSIG *signals; 1082static ANSIG *signals;
711static int signalmax; 1083static int signalmax;
712 1084
713static int sigpipe [2]; 1085static EV_ATOMIC_T gotsig;
714static sig_atomic_t volatile gotsig;
715static ev_io sigev;
716 1086
717void inline_size 1087/*****************************************************************************/
718signals_init (ANSIG *base, int count)
719{
720 while (count--)
721 {
722 base->head = 0;
723 base->gotsig = 0;
724 1088
725 ++base; 1089/* used to prepare libev internal fd's */
726 } 1090/* this is not fork-safe */
727} 1091inline_speed void
728
729static void
730sighandler (int signum)
731{
732#if _WIN32
733 signal (signum, sighandler);
734#endif
735
736 signals [signum - 1].gotsig = 1;
737
738 if (!gotsig)
739 {
740 int old_errno = errno;
741 gotsig = 1;
742 write (sigpipe [1], &signum, 1);
743 errno = old_errno;
744 }
745}
746
747void noinline
748ev_feed_signal_event (EV_P_ int signum)
749{
750 WL w;
751
752#if EV_MULTIPLICITY
753 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
754#endif
755
756 --signum;
757
758 if (signum < 0 || signum >= signalmax)
759 return;
760
761 signals [signum].gotsig = 0;
762
763 for (w = signals [signum].head; w; w = w->next)
764 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
765}
766
767static void
768sigcb (EV_P_ ev_io *iow, int revents)
769{
770 int signum;
771
772 read (sigpipe [0], &revents, 1);
773 gotsig = 0;
774
775 for (signum = signalmax; signum--; )
776 if (signals [signum].gotsig)
777 ev_feed_signal_event (EV_A_ signum + 1);
778}
779
780void inline_speed
781fd_intern (int fd) 1092fd_intern (int fd)
782{ 1093{
783#ifdef _WIN32 1094#ifdef _WIN32
784 int arg = 1; 1095 unsigned long arg = 1;
785 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1096 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
786#else 1097#else
787 fcntl (fd, F_SETFD, FD_CLOEXEC); 1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
788 fcntl (fd, F_SETFL, O_NONBLOCK); 1099 fcntl (fd, F_SETFL, O_NONBLOCK);
789#endif 1100#endif
790} 1101}
791 1102
792static void noinline 1103static void noinline
793siginit (EV_P) 1104evpipe_init (EV_P)
794{ 1105{
1106 if (!ev_is_active (&pipe_w))
1107 {
1108#if EV_USE_EVENTFD
1109 if ((evfd = eventfd (0, 0)) >= 0)
1110 {
1111 evpipe [0] = -1;
1112 fd_intern (evfd);
1113 ev_io_set (&pipe_w, evfd, EV_READ);
1114 }
1115 else
1116#endif
1117 {
1118 while (pipe (evpipe))
1119 ev_syserr ("(libev) error creating signal/async pipe");
1120
795 fd_intern (sigpipe [0]); 1121 fd_intern (evpipe [0]);
796 fd_intern (sigpipe [1]); 1122 fd_intern (evpipe [1]);
1123 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1124 }
797 1125
798 ev_io_set (&sigev, sigpipe [0], EV_READ);
799 ev_io_start (EV_A_ &sigev); 1126 ev_io_start (EV_A_ &pipe_w);
800 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1127 ev_unref (EV_A); /* watcher should not keep loop alive */
1128 }
1129}
1130
1131inline_size void
1132evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133{
1134 if (!*flag)
1135 {
1136 int old_errno = errno; /* save errno because write might clobber it */
1137
1138 *flag = 1;
1139
1140#if EV_USE_EVENTFD
1141 if (evfd >= 0)
1142 {
1143 uint64_t counter = 1;
1144 write (evfd, &counter, sizeof (uint64_t));
1145 }
1146 else
1147#endif
1148 write (evpipe [1], &old_errno, 1);
1149
1150 errno = old_errno;
1151 }
1152}
1153
1154/* called whenever the libev signal pipe */
1155/* got some events (signal, async) */
1156static void
1157pipecb (EV_P_ ev_io *iow, int revents)
1158{
1159#if EV_USE_EVENTFD
1160 if (evfd >= 0)
1161 {
1162 uint64_t counter;
1163 read (evfd, &counter, sizeof (uint64_t));
1164 }
1165 else
1166#endif
1167 {
1168 char dummy;
1169 read (evpipe [0], &dummy, 1);
1170 }
1171
1172 if (gotsig && ev_is_default_loop (EV_A))
1173 {
1174 int signum;
1175 gotsig = 0;
1176
1177 for (signum = signalmax; signum--; )
1178 if (signals [signum].gotsig)
1179 ev_feed_signal_event (EV_A_ signum + 1);
1180 }
1181
1182#if EV_ASYNC_ENABLE
1183 if (gotasync)
1184 {
1185 int i;
1186 gotasync = 0;
1187
1188 for (i = asynccnt; i--; )
1189 if (asyncs [i]->sent)
1190 {
1191 asyncs [i]->sent = 0;
1192 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1193 }
1194 }
1195#endif
801} 1196}
802 1197
803/*****************************************************************************/ 1198/*****************************************************************************/
804 1199
1200static void
1201ev_sighandler (int signum)
1202{
1203#if EV_MULTIPLICITY
1204 struct ev_loop *loop = &default_loop_struct;
1205#endif
1206
1207#if _WIN32
1208 signal (signum, ev_sighandler);
1209#endif
1210
1211 signals [signum - 1].gotsig = 1;
1212 evpipe_write (EV_A_ &gotsig);
1213}
1214
1215void noinline
1216ev_feed_signal_event (EV_P_ int signum)
1217{
1218 WL w;
1219
1220#if EV_MULTIPLICITY
1221 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1222#endif
1223
1224 --signum;
1225
1226 if (signum < 0 || signum >= signalmax)
1227 return;
1228
1229 signals [signum].gotsig = 0;
1230
1231 for (w = signals [signum].head; w; w = w->next)
1232 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233}
1234
1235/*****************************************************************************/
1236
805static WL childs [EV_PID_HASHSIZE]; 1237static WL childs [EV_PID_HASHSIZE];
806 1238
807#ifndef _WIN32 1239#ifndef _WIN32
808 1240
809static ev_signal childev; 1241static ev_signal childev;
810 1242
811void inline_speed 1243#ifndef WIFCONTINUED
1244# define WIFCONTINUED(status) 0
1245#endif
1246
1247/* handle a single child status event */
1248inline_speed void
812child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1249child_reap (EV_P_ int chain, int pid, int status)
813{ 1250{
814 ev_child *w; 1251 ev_child *w;
1252 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
815 1253
816 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1254 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1255 {
817 if (w->pid == pid || !w->pid) 1256 if ((w->pid == pid || !w->pid)
1257 && (!traced || (w->flags & 1)))
818 { 1258 {
819 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 1259 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
820 w->rpid = pid; 1260 w->rpid = pid;
821 w->rstatus = status; 1261 w->rstatus = status;
822 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1262 ev_feed_event (EV_A_ (W)w, EV_CHILD);
823 } 1263 }
1264 }
824} 1265}
825 1266
826#ifndef WCONTINUED 1267#ifndef WCONTINUED
827# define WCONTINUED 0 1268# define WCONTINUED 0
828#endif 1269#endif
829 1270
1271/* called on sigchld etc., calls waitpid */
830static void 1272static void
831childcb (EV_P_ ev_signal *sw, int revents) 1273childcb (EV_P_ ev_signal *sw, int revents)
832{ 1274{
833 int pid, status; 1275 int pid, status;
834 1276
… …
837 if (!WCONTINUED 1279 if (!WCONTINUED
838 || errno != EINVAL 1280 || errno != EINVAL
839 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1281 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840 return; 1282 return;
841 1283
842 /* make sure we are called again until all childs have been reaped */ 1284 /* make sure we are called again until all children have been reaped */
843 /* we need to do it this way so that the callback gets called before we continue */ 1285 /* we need to do it this way so that the callback gets called before we continue */
844 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1286 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845 1287
846 child_reap (EV_A_ sw, pid, pid, status); 1288 child_reap (EV_A_ pid, pid, status);
847 if (EV_PID_HASHSIZE > 1) 1289 if (EV_PID_HASHSIZE > 1)
848 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1290 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
849} 1291}
850 1292
851#endif 1293#endif
852 1294
853/*****************************************************************************/ 1295/*****************************************************************************/
… …
915 /* kqueue is borked on everything but netbsd apparently */ 1357 /* kqueue is borked on everything but netbsd apparently */
916 /* it usually doesn't work correctly on anything but sockets and pipes */ 1358 /* it usually doesn't work correctly on anything but sockets and pipes */
917 flags &= ~EVBACKEND_KQUEUE; 1359 flags &= ~EVBACKEND_KQUEUE;
918#endif 1360#endif
919#ifdef __APPLE__ 1361#ifdef __APPLE__
920 // flags &= ~EVBACKEND_KQUEUE; for documentation 1362 /* only select works correctly on that "unix-certified" platform */
921 flags &= ~EVBACKEND_POLL; 1363 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
922#endif 1365#endif
923 1366
924 return flags; 1367 return flags;
925} 1368}
926 1369
927unsigned int 1370unsigned int
928ev_embeddable_backends (void) 1371ev_embeddable_backends (void)
929{ 1372{
930 return EVBACKEND_EPOLL 1373 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
931 | EVBACKEND_KQUEUE 1374
932 | EVBACKEND_PORT; 1375 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1376 /* please fix it and tell me how to detect the fix */
1377 flags &= ~EVBACKEND_EPOLL;
1378
1379 return flags;
933} 1380}
934 1381
935unsigned int 1382unsigned int
936ev_backend (EV_P) 1383ev_backend (EV_P)
937{ 1384{
938 return backend; 1385 return backend;
939} 1386}
940 1387
1388#if EV_MINIMAL < 2
941unsigned int 1389unsigned int
942ev_loop_count (EV_P) 1390ev_loop_count (EV_P)
943{ 1391{
944 return loop_count; 1392 return loop_count;
945} 1393}
946 1394
1395unsigned int
1396ev_loop_depth (EV_P)
1397{
1398 return loop_depth;
1399}
1400
1401void
1402ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1403{
1404 io_blocktime = interval;
1405}
1406
1407void
1408ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1409{
1410 timeout_blocktime = interval;
1411}
1412
1413void
1414ev_set_userdata (EV_P_ void *data)
1415{
1416 userdata = data;
1417}
1418
1419void *
1420ev_userdata (EV_P)
1421{
1422 return userdata;
1423}
1424
1425void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1426{
1427 invoke_cb = invoke_pending_cb;
1428}
1429
1430void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1431{
1432 release_cb = release;
1433 acquire_cb = acquire;
1434}
1435#endif
1436
1437/* initialise a loop structure, must be zero-initialised */
947static void noinline 1438static void noinline
948loop_init (EV_P_ unsigned int flags) 1439loop_init (EV_P_ unsigned int flags)
949{ 1440{
950 if (!backend) 1441 if (!backend)
951 { 1442 {
1443#if EV_USE_REALTIME
1444 if (!have_realtime)
1445 {
1446 struct timespec ts;
1447
1448 if (!clock_gettime (CLOCK_REALTIME, &ts))
1449 have_realtime = 1;
1450 }
1451#endif
1452
952#if EV_USE_MONOTONIC 1453#if EV_USE_MONOTONIC
1454 if (!have_monotonic)
953 { 1455 {
954 struct timespec ts; 1456 struct timespec ts;
1457
955 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1458 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956 have_monotonic = 1; 1459 have_monotonic = 1;
957 } 1460 }
958#endif 1461#endif
959 1462
960 ev_rt_now = ev_time (); 1463 ev_rt_now = ev_time ();
961 mn_now = get_clock (); 1464 mn_now = get_clock ();
962 now_floor = mn_now; 1465 now_floor = mn_now;
963 rtmn_diff = ev_rt_now - mn_now; 1466 rtmn_diff = ev_rt_now - mn_now;
1467#if EV_MINIMAL < 2
1468 invoke_cb = ev_invoke_pending;
1469#endif
1470
1471 io_blocktime = 0.;
1472 timeout_blocktime = 0.;
1473 backend = 0;
1474 backend_fd = -1;
1475 gotasync = 0;
1476#if EV_USE_INOTIFY
1477 fs_fd = -2;
1478#endif
964 1479
965 /* pid check not overridable via env */ 1480 /* pid check not overridable via env */
966#ifndef _WIN32 1481#ifndef _WIN32
967 if (flags & EVFLAG_FORKCHECK) 1482 if (flags & EVFLAG_FORKCHECK)
968 curpid = getpid (); 1483 curpid = getpid ();
… …
971 if (!(flags & EVFLAG_NOENV) 1486 if (!(flags & EVFLAG_NOENV)
972 && !enable_secure () 1487 && !enable_secure ()
973 && getenv ("LIBEV_FLAGS")) 1488 && getenv ("LIBEV_FLAGS"))
974 flags = atoi (getenv ("LIBEV_FLAGS")); 1489 flags = atoi (getenv ("LIBEV_FLAGS"));
975 1490
976 if (!(flags & 0x0000ffffUL)) 1491 if (!(flags & 0x0000ffffU))
977 flags |= ev_recommended_backends (); 1492 flags |= ev_recommended_backends ();
978
979 backend = 0;
980 backend_fd = -1;
981#if EV_USE_INOTIFY
982 fs_fd = -2;
983#endif
984 1493
985#if EV_USE_PORT 1494#if EV_USE_PORT
986 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1495 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987#endif 1496#endif
988#if EV_USE_KQUEUE 1497#if EV_USE_KQUEUE
… …
996#endif 1505#endif
997#if EV_USE_SELECT 1506#if EV_USE_SELECT
998 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1507 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999#endif 1508#endif
1000 1509
1510 ev_prepare_init (&pending_w, pendingcb);
1511
1001 ev_init (&sigev, sigcb); 1512 ev_init (&pipe_w, pipecb);
1002 ev_set_priority (&sigev, EV_MAXPRI); 1513 ev_set_priority (&pipe_w, EV_MAXPRI);
1003 } 1514 }
1004} 1515}
1005 1516
1517/* free up a loop structure */
1006static void noinline 1518static void noinline
1007loop_destroy (EV_P) 1519loop_destroy (EV_P)
1008{ 1520{
1009 int i; 1521 int i;
1522
1523 if (ev_is_active (&pipe_w))
1524 {
1525 ev_ref (EV_A); /* signal watcher */
1526 ev_io_stop (EV_A_ &pipe_w);
1527
1528#if EV_USE_EVENTFD
1529 if (evfd >= 0)
1530 close (evfd);
1531#endif
1532
1533 if (evpipe [0] >= 0)
1534 {
1535 close (evpipe [0]);
1536 close (evpipe [1]);
1537 }
1538 }
1010 1539
1011#if EV_USE_INOTIFY 1540#if EV_USE_INOTIFY
1012 if (fs_fd >= 0) 1541 if (fs_fd >= 0)
1013 close (fs_fd); 1542 close (fs_fd);
1014#endif 1543#endif
… …
1041 } 1570 }
1042 1571
1043 ev_free (anfds); anfdmax = 0; 1572 ev_free (anfds); anfdmax = 0;
1044 1573
1045 /* have to use the microsoft-never-gets-it-right macro */ 1574 /* have to use the microsoft-never-gets-it-right macro */
1575 array_free (rfeed, EMPTY);
1046 array_free (fdchange, EMPTY); 1576 array_free (fdchange, EMPTY);
1047 array_free (timer, EMPTY); 1577 array_free (timer, EMPTY);
1048#if EV_PERIODIC_ENABLE 1578#if EV_PERIODIC_ENABLE
1049 array_free (periodic, EMPTY); 1579 array_free (periodic, EMPTY);
1050#endif 1580#endif
1051#if EV_FORK_ENABLE 1581#if EV_FORK_ENABLE
1052 array_free (fork, EMPTY); 1582 array_free (fork, EMPTY);
1053#endif 1583#endif
1054 array_free (prepare, EMPTY); 1584 array_free (prepare, EMPTY);
1055 array_free (check, EMPTY); 1585 array_free (check, EMPTY);
1586#if EV_ASYNC_ENABLE
1587 array_free (async, EMPTY);
1588#endif
1056 1589
1057 backend = 0; 1590 backend = 0;
1058} 1591}
1059 1592
1593#if EV_USE_INOTIFY
1060void inline_size infy_fork (EV_P); 1594inline_size void infy_fork (EV_P);
1595#endif
1061 1596
1062void inline_size 1597inline_size void
1063loop_fork (EV_P) 1598loop_fork (EV_P)
1064{ 1599{
1065#if EV_USE_PORT 1600#if EV_USE_PORT
1066 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1601 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1067#endif 1602#endif
… …
1073#endif 1608#endif
1074#if EV_USE_INOTIFY 1609#if EV_USE_INOTIFY
1075 infy_fork (EV_A); 1610 infy_fork (EV_A);
1076#endif 1611#endif
1077 1612
1078 if (ev_is_active (&sigev)) 1613 if (ev_is_active (&pipe_w))
1079 { 1614 {
1080 /* default loop */ 1615 /* this "locks" the handlers against writing to the pipe */
1616 /* while we modify the fd vars */
1617 gotsig = 1;
1618#if EV_ASYNC_ENABLE
1619 gotasync = 1;
1620#endif
1081 1621
1082 ev_ref (EV_A); 1622 ev_ref (EV_A);
1083 ev_io_stop (EV_A_ &sigev); 1623 ev_io_stop (EV_A_ &pipe_w);
1624
1625#if EV_USE_EVENTFD
1626 if (evfd >= 0)
1627 close (evfd);
1628#endif
1629
1630 if (evpipe [0] >= 0)
1631 {
1084 close (sigpipe [0]); 1632 close (evpipe [0]);
1085 close (sigpipe [1]); 1633 close (evpipe [1]);
1634 }
1086 1635
1087 while (pipe (sigpipe))
1088 syserr ("(libev) error creating pipe");
1089
1090 siginit (EV_A); 1636 evpipe_init (EV_A);
1637 /* now iterate over everything, in case we missed something */
1638 pipecb (EV_A_ &pipe_w, EV_READ);
1091 } 1639 }
1092 1640
1093 postfork = 0; 1641 postfork = 0;
1094} 1642}
1095 1643
1096#if EV_MULTIPLICITY 1644#if EV_MULTIPLICITY
1645
1097struct ev_loop * 1646struct ev_loop *
1098ev_loop_new (unsigned int flags) 1647ev_loop_new (unsigned int flags)
1099{ 1648{
1100 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1649 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1101 1650
… …
1117} 1666}
1118 1667
1119void 1668void
1120ev_loop_fork (EV_P) 1669ev_loop_fork (EV_P)
1121{ 1670{
1122 postfork = 1; 1671 postfork = 1; /* must be in line with ev_default_fork */
1123} 1672}
1673#endif /* multiplicity */
1124 1674
1675#if EV_VERIFY
1676static void noinline
1677verify_watcher (EV_P_ W w)
1678{
1679 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1680
1681 if (w->pending)
1682 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1683}
1684
1685static void noinline
1686verify_heap (EV_P_ ANHE *heap, int N)
1687{
1688 int i;
1689
1690 for (i = HEAP0; i < N + HEAP0; ++i)
1691 {
1692 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1693 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1694 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1695
1696 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1697 }
1698}
1699
1700static void noinline
1701array_verify (EV_P_ W *ws, int cnt)
1702{
1703 while (cnt--)
1704 {
1705 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1706 verify_watcher (EV_A_ ws [cnt]);
1707 }
1708}
1709#endif
1710
1711#if EV_MINIMAL < 2
1712void
1713ev_loop_verify (EV_P)
1714{
1715#if EV_VERIFY
1716 int i;
1717 WL w;
1718
1719 assert (activecnt >= -1);
1720
1721 assert (fdchangemax >= fdchangecnt);
1722 for (i = 0; i < fdchangecnt; ++i)
1723 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1724
1725 assert (anfdmax >= 0);
1726 for (i = 0; i < anfdmax; ++i)
1727 for (w = anfds [i].head; w; w = w->next)
1728 {
1729 verify_watcher (EV_A_ (W)w);
1730 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1731 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1732 }
1733
1734 assert (timermax >= timercnt);
1735 verify_heap (EV_A_ timers, timercnt);
1736
1737#if EV_PERIODIC_ENABLE
1738 assert (periodicmax >= periodiccnt);
1739 verify_heap (EV_A_ periodics, periodiccnt);
1740#endif
1741
1742 for (i = NUMPRI; i--; )
1743 {
1744 assert (pendingmax [i] >= pendingcnt [i]);
1745#if EV_IDLE_ENABLE
1746 assert (idleall >= 0);
1747 assert (idlemax [i] >= idlecnt [i]);
1748 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1749#endif
1750 }
1751
1752#if EV_FORK_ENABLE
1753 assert (forkmax >= forkcnt);
1754 array_verify (EV_A_ (W *)forks, forkcnt);
1755#endif
1756
1757#if EV_ASYNC_ENABLE
1758 assert (asyncmax >= asynccnt);
1759 array_verify (EV_A_ (W *)asyncs, asynccnt);
1760#endif
1761
1762 assert (preparemax >= preparecnt);
1763 array_verify (EV_A_ (W *)prepares, preparecnt);
1764
1765 assert (checkmax >= checkcnt);
1766 array_verify (EV_A_ (W *)checks, checkcnt);
1767
1768# if 0
1769 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1770 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1771# endif
1772#endif
1773}
1125#endif 1774#endif
1126 1775
1127#if EV_MULTIPLICITY 1776#if EV_MULTIPLICITY
1128struct ev_loop * 1777struct ev_loop *
1129ev_default_loop_init (unsigned int flags) 1778ev_default_loop_init (unsigned int flags)
1130#else 1779#else
1131int 1780int
1132ev_default_loop (unsigned int flags) 1781ev_default_loop (unsigned int flags)
1133#endif 1782#endif
1134{ 1783{
1135 if (sigpipe [0] == sigpipe [1])
1136 if (pipe (sigpipe))
1137 return 0;
1138
1139 if (!ev_default_loop_ptr) 1784 if (!ev_default_loop_ptr)
1140 { 1785 {
1141#if EV_MULTIPLICITY 1786#if EV_MULTIPLICITY
1142 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1787 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1143#else 1788#else
… …
1146 1791
1147 loop_init (EV_A_ flags); 1792 loop_init (EV_A_ flags);
1148 1793
1149 if (ev_backend (EV_A)) 1794 if (ev_backend (EV_A))
1150 { 1795 {
1151 siginit (EV_A);
1152
1153#ifndef _WIN32 1796#ifndef _WIN32
1154 ev_signal_init (&childev, childcb, SIGCHLD); 1797 ev_signal_init (&childev, childcb, SIGCHLD);
1155 ev_set_priority (&childev, EV_MAXPRI); 1798 ev_set_priority (&childev, EV_MAXPRI);
1156 ev_signal_start (EV_A_ &childev); 1799 ev_signal_start (EV_A_ &childev);
1157 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1800 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1169{ 1812{
1170#if EV_MULTIPLICITY 1813#if EV_MULTIPLICITY
1171 struct ev_loop *loop = ev_default_loop_ptr; 1814 struct ev_loop *loop = ev_default_loop_ptr;
1172#endif 1815#endif
1173 1816
1817 ev_default_loop_ptr = 0;
1818
1174#ifndef _WIN32 1819#ifndef _WIN32
1175 ev_ref (EV_A); /* child watcher */ 1820 ev_ref (EV_A); /* child watcher */
1176 ev_signal_stop (EV_A_ &childev); 1821 ev_signal_stop (EV_A_ &childev);
1177#endif 1822#endif
1178 1823
1179 ev_ref (EV_A); /* signal watcher */
1180 ev_io_stop (EV_A_ &sigev);
1181
1182 close (sigpipe [0]); sigpipe [0] = 0;
1183 close (sigpipe [1]); sigpipe [1] = 0;
1184
1185 loop_destroy (EV_A); 1824 loop_destroy (EV_A);
1186} 1825}
1187 1826
1188void 1827void
1189ev_default_fork (void) 1828ev_default_fork (void)
1190{ 1829{
1191#if EV_MULTIPLICITY 1830#if EV_MULTIPLICITY
1192 struct ev_loop *loop = ev_default_loop_ptr; 1831 struct ev_loop *loop = ev_default_loop_ptr;
1193#endif 1832#endif
1194 1833
1195 if (backend) 1834 postfork = 1; /* must be in line with ev_loop_fork */
1196 postfork = 1;
1197} 1835}
1198 1836
1199/*****************************************************************************/ 1837/*****************************************************************************/
1200 1838
1201void 1839void
1202ev_invoke (EV_P_ void *w, int revents) 1840ev_invoke (EV_P_ void *w, int revents)
1203{ 1841{
1204 EV_CB_INVOKE ((W)w, revents); 1842 EV_CB_INVOKE ((W)w, revents);
1205} 1843}
1206 1844
1207void inline_speed 1845unsigned int
1208call_pending (EV_P) 1846ev_pending_count (EV_P)
1847{
1848 int pri;
1849 unsigned int count = 0;
1850
1851 for (pri = NUMPRI; pri--; )
1852 count += pendingcnt [pri];
1853
1854 return count;
1855}
1856
1857void noinline
1858ev_invoke_pending (EV_P)
1209{ 1859{
1210 int pri; 1860 int pri;
1211 1861
1212 for (pri = NUMPRI; pri--; ) 1862 for (pri = NUMPRI; pri--; )
1213 while (pendingcnt [pri]) 1863 while (pendingcnt [pri])
1214 { 1864 {
1215 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1865 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1216 1866
1217 if (expect_true (p->w))
1218 {
1219 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1867 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1868 /* ^ this is no longer true, as pending_w could be here */
1220 1869
1221 p->w->pending = 0; 1870 p->w->pending = 0;
1222 EV_CB_INVOKE (p->w, p->events); 1871 EV_CB_INVOKE (p->w, p->events);
1223 } 1872 EV_FREQUENT_CHECK;
1224 } 1873 }
1225} 1874}
1226 1875
1227void inline_size
1228timers_reify (EV_P)
1229{
1230 while (timercnt && ((WT)timers [0])->at <= mn_now)
1231 {
1232 ev_timer *w = (ev_timer *)timers [0];
1233
1234 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1235
1236 /* first reschedule or stop timer */
1237 if (w->repeat)
1238 {
1239 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1240
1241 ((WT)w)->at += w->repeat;
1242 if (((WT)w)->at < mn_now)
1243 ((WT)w)->at = mn_now;
1244
1245 downheap (timers, timercnt, 0);
1246 }
1247 else
1248 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1249
1250 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1251 }
1252}
1253
1254#if EV_PERIODIC_ENABLE
1255void inline_size
1256periodics_reify (EV_P)
1257{
1258 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1259 {
1260 ev_periodic *w = (ev_periodic *)periodics [0];
1261
1262 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1263
1264 /* first reschedule or stop timer */
1265 if (w->reschedule_cb)
1266 {
1267 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1268 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1269 downheap (periodics, periodiccnt, 0);
1270 }
1271 else if (w->interval)
1272 {
1273 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1274 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1275 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1276 downheap (periodics, periodiccnt, 0);
1277 }
1278 else
1279 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1280
1281 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1282 }
1283}
1284
1285static void noinline
1286periodics_reschedule (EV_P)
1287{
1288 int i;
1289
1290 /* adjust periodics after time jump */
1291 for (i = 0; i < periodiccnt; ++i)
1292 {
1293 ev_periodic *w = (ev_periodic *)periodics [i];
1294
1295 if (w->reschedule_cb)
1296 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1297 else if (w->interval)
1298 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1299 }
1300
1301 /* now rebuild the heap */
1302 for (i = periodiccnt >> 1; i--; )
1303 downheap (periodics, periodiccnt, i);
1304}
1305#endif
1306
1307#if EV_IDLE_ENABLE 1876#if EV_IDLE_ENABLE
1308void inline_size 1877/* make idle watchers pending. this handles the "call-idle */
1878/* only when higher priorities are idle" logic */
1879inline_size void
1309idle_reify (EV_P) 1880idle_reify (EV_P)
1310{ 1881{
1311 if (expect_false (idleall)) 1882 if (expect_false (idleall))
1312 { 1883 {
1313 int pri; 1884 int pri;
… …
1325 } 1896 }
1326 } 1897 }
1327} 1898}
1328#endif 1899#endif
1329 1900
1330void inline_speed 1901/* make timers pending */
1902inline_size void
1903timers_reify (EV_P)
1904{
1905 EV_FREQUENT_CHECK;
1906
1907 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1908 {
1909 do
1910 {
1911 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1912
1913 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1914
1915 /* first reschedule or stop timer */
1916 if (w->repeat)
1917 {
1918 ev_at (w) += w->repeat;
1919 if (ev_at (w) < mn_now)
1920 ev_at (w) = mn_now;
1921
1922 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1923
1924 ANHE_at_cache (timers [HEAP0]);
1925 downheap (timers, timercnt, HEAP0);
1926 }
1927 else
1928 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1929
1930 EV_FREQUENT_CHECK;
1931 feed_reverse (EV_A_ (W)w);
1932 }
1933 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1934
1935 feed_reverse_done (EV_A_ EV_TIMEOUT);
1936 }
1937}
1938
1939#if EV_PERIODIC_ENABLE
1940/* make periodics pending */
1941inline_size void
1942periodics_reify (EV_P)
1943{
1944 EV_FREQUENT_CHECK;
1945
1946 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1947 {
1948 int feed_count = 0;
1949
1950 do
1951 {
1952 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1953
1954 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
1955
1956 /* first reschedule or stop timer */
1957 if (w->reschedule_cb)
1958 {
1959 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1960
1961 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1962
1963 ANHE_at_cache (periodics [HEAP0]);
1964 downheap (periodics, periodiccnt, HEAP0);
1965 }
1966 else if (w->interval)
1967 {
1968 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1969 /* if next trigger time is not sufficiently in the future, put it there */
1970 /* this might happen because of floating point inexactness */
1971 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1972 {
1973 ev_at (w) += w->interval;
1974
1975 /* if interval is unreasonably low we might still have a time in the past */
1976 /* so correct this. this will make the periodic very inexact, but the user */
1977 /* has effectively asked to get triggered more often than possible */
1978 if (ev_at (w) < ev_rt_now)
1979 ev_at (w) = ev_rt_now;
1980 }
1981
1982 ANHE_at_cache (periodics [HEAP0]);
1983 downheap (periodics, periodiccnt, HEAP0);
1984 }
1985 else
1986 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1987
1988 EV_FREQUENT_CHECK;
1989 feed_reverse (EV_A_ (W)w);
1990 }
1991 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1992
1993 feed_reverse_done (EV_A_ EV_PERIODIC);
1994 }
1995}
1996
1997/* simply recalculate all periodics */
1998/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1999static void noinline
2000periodics_reschedule (EV_P)
2001{
2002 int i;
2003
2004 /* adjust periodics after time jump */
2005 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
2006 {
2007 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2008
2009 if (w->reschedule_cb)
2010 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2011 else if (w->interval)
2012 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2013
2014 ANHE_at_cache (periodics [i]);
2015 }
2016
2017 reheap (periodics, periodiccnt);
2018}
2019#endif
2020
2021/* adjust all timers by a given offset */
2022static void noinline
2023timers_reschedule (EV_P_ ev_tstamp adjust)
2024{
2025 int i;
2026
2027 for (i = 0; i < timercnt; ++i)
2028 {
2029 ANHE *he = timers + i + HEAP0;
2030 ANHE_w (*he)->at += adjust;
2031 ANHE_at_cache (*he);
2032 }
2033}
2034
2035/* fetch new monotonic and realtime times from the kernel */
2036/* also detetc if there was a timejump, and act accordingly */
2037inline_speed void
1331time_update (EV_P_ ev_tstamp max_block) 2038time_update (EV_P_ ev_tstamp max_block)
1332{ 2039{
1333 int i;
1334
1335#if EV_USE_MONOTONIC 2040#if EV_USE_MONOTONIC
1336 if (expect_true (have_monotonic)) 2041 if (expect_true (have_monotonic))
1337 { 2042 {
2043 int i;
1338 ev_tstamp odiff = rtmn_diff; 2044 ev_tstamp odiff = rtmn_diff;
1339 2045
1340 mn_now = get_clock (); 2046 mn_now = get_clock ();
1341 2047
1342 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2048 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1360 */ 2066 */
1361 for (i = 4; --i; ) 2067 for (i = 4; --i; )
1362 { 2068 {
1363 rtmn_diff = ev_rt_now - mn_now; 2069 rtmn_diff = ev_rt_now - mn_now;
1364 2070
1365 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2071 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1366 return; /* all is well */ 2072 return; /* all is well */
1367 2073
1368 ev_rt_now = ev_time (); 2074 ev_rt_now = ev_time ();
1369 mn_now = get_clock (); 2075 mn_now = get_clock ();
1370 now_floor = mn_now; 2076 now_floor = mn_now;
1371 } 2077 }
1372 2078
2079 /* no timer adjustment, as the monotonic clock doesn't jump */
2080 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1373# if EV_PERIODIC_ENABLE 2081# if EV_PERIODIC_ENABLE
1374 periodics_reschedule (EV_A); 2082 periodics_reschedule (EV_A);
1375# endif 2083# endif
1376 /* no timer adjustment, as the monotonic clock doesn't jump */
1377 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1378 } 2084 }
1379 else 2085 else
1380#endif 2086#endif
1381 { 2087 {
1382 ev_rt_now = ev_time (); 2088 ev_rt_now = ev_time ();
1383 2089
1384 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2090 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1385 { 2091 {
2092 /* adjust timers. this is easy, as the offset is the same for all of them */
2093 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1386#if EV_PERIODIC_ENABLE 2094#if EV_PERIODIC_ENABLE
1387 periodics_reschedule (EV_A); 2095 periodics_reschedule (EV_A);
1388#endif 2096#endif
1389 /* adjust timers. this is easy, as the offset is the same for all of them */
1390 for (i = 0; i < timercnt; ++i)
1391 ((WT)timers [i])->at += ev_rt_now - mn_now;
1392 } 2097 }
1393 2098
1394 mn_now = ev_rt_now; 2099 mn_now = ev_rt_now;
1395 } 2100 }
1396} 2101}
1397 2102
1398void 2103void
1399ev_ref (EV_P)
1400{
1401 ++activecnt;
1402}
1403
1404void
1405ev_unref (EV_P)
1406{
1407 --activecnt;
1408}
1409
1410static int loop_done;
1411
1412void
1413ev_loop (EV_P_ int flags) 2104ev_loop (EV_P_ int flags)
1414{ 2105{
1415 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 2106#if EV_MINIMAL < 2
1416 ? EVUNLOOP_ONE 2107 ++loop_depth;
1417 : EVUNLOOP_CANCEL; 2108#endif
1418 2109
2110 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2111
2112 loop_done = EVUNLOOP_CANCEL;
2113
1419 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2114 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1420 2115
1421 do 2116 do
1422 { 2117 {
2118#if EV_VERIFY >= 2
2119 ev_loop_verify (EV_A);
2120#endif
2121
1423#ifndef _WIN32 2122#ifndef _WIN32
1424 if (expect_false (curpid)) /* penalise the forking check even more */ 2123 if (expect_false (curpid)) /* penalise the forking check even more */
1425 if (expect_false (getpid () != curpid)) 2124 if (expect_false (getpid () != curpid))
1426 { 2125 {
1427 curpid = getpid (); 2126 curpid = getpid ();
… …
1433 /* we might have forked, so queue fork handlers */ 2132 /* we might have forked, so queue fork handlers */
1434 if (expect_false (postfork)) 2133 if (expect_false (postfork))
1435 if (forkcnt) 2134 if (forkcnt)
1436 { 2135 {
1437 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2136 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1438 call_pending (EV_A); 2137 EV_INVOKE_PENDING;
1439 } 2138 }
1440#endif 2139#endif
1441 2140
1442 /* queue prepare watchers (and execute them) */ 2141 /* queue prepare watchers (and execute them) */
1443 if (expect_false (preparecnt)) 2142 if (expect_false (preparecnt))
1444 { 2143 {
1445 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2144 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1446 call_pending (EV_A); 2145 EV_INVOKE_PENDING;
1447 } 2146 }
1448 2147
1449 if (expect_false (!activecnt)) 2148 if (expect_false (loop_done))
1450 break; 2149 break;
1451 2150
1452 /* we might have forked, so reify kernel state if necessary */ 2151 /* we might have forked, so reify kernel state if necessary */
1453 if (expect_false (postfork)) 2152 if (expect_false (postfork))
1454 loop_fork (EV_A); 2153 loop_fork (EV_A);
… …
1456 /* update fd-related kernel structures */ 2155 /* update fd-related kernel structures */
1457 fd_reify (EV_A); 2156 fd_reify (EV_A);
1458 2157
1459 /* calculate blocking time */ 2158 /* calculate blocking time */
1460 { 2159 {
1461 ev_tstamp block; 2160 ev_tstamp waittime = 0.;
2161 ev_tstamp sleeptime = 0.;
1462 2162
1463 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 2163 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1464 block = 0.; /* do not block at all */
1465 else
1466 { 2164 {
2165 /* remember old timestamp for io_blocktime calculation */
2166 ev_tstamp prev_mn_now = mn_now;
2167
1467 /* update time to cancel out callback processing overhead */ 2168 /* update time to cancel out callback processing overhead */
1468 time_update (EV_A_ 1e100); 2169 time_update (EV_A_ 1e100);
1469 2170
1470 block = MAX_BLOCKTIME; 2171 waittime = MAX_BLOCKTIME;
1471 2172
1472 if (timercnt) 2173 if (timercnt)
1473 { 2174 {
1474 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 2175 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1475 if (block > to) block = to; 2176 if (waittime > to) waittime = to;
1476 } 2177 }
1477 2178
1478#if EV_PERIODIC_ENABLE 2179#if EV_PERIODIC_ENABLE
1479 if (periodiccnt) 2180 if (periodiccnt)
1480 { 2181 {
1481 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 2182 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1482 if (block > to) block = to; 2183 if (waittime > to) waittime = to;
1483 } 2184 }
1484#endif 2185#endif
1485 2186
2187 /* don't let timeouts decrease the waittime below timeout_blocktime */
2188 if (expect_false (waittime < timeout_blocktime))
2189 waittime = timeout_blocktime;
2190
2191 /* extra check because io_blocktime is commonly 0 */
1486 if (expect_false (block < 0.)) block = 0.; 2192 if (expect_false (io_blocktime))
2193 {
2194 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2195
2196 if (sleeptime > waittime - backend_fudge)
2197 sleeptime = waittime - backend_fudge;
2198
2199 if (expect_true (sleeptime > 0.))
2200 {
2201 ev_sleep (sleeptime);
2202 waittime -= sleeptime;
2203 }
2204 }
1487 } 2205 }
1488 2206
2207#if EV_MINIMAL < 2
1489 ++loop_count; 2208 ++loop_count;
2209#endif
2210 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1490 backend_poll (EV_A_ block); 2211 backend_poll (EV_A_ waittime);
2212 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1491 2213
1492 /* update ev_rt_now, do magic */ 2214 /* update ev_rt_now, do magic */
1493 time_update (EV_A_ block); 2215 time_update (EV_A_ waittime + sleeptime);
1494 } 2216 }
1495 2217
1496 /* queue pending timers and reschedule them */ 2218 /* queue pending timers and reschedule them */
1497 timers_reify (EV_A); /* relative timers called last */ 2219 timers_reify (EV_A); /* relative timers called last */
1498#if EV_PERIODIC_ENABLE 2220#if EV_PERIODIC_ENABLE
… …
1506 2228
1507 /* queue check watchers, to be executed first */ 2229 /* queue check watchers, to be executed first */
1508 if (expect_false (checkcnt)) 2230 if (expect_false (checkcnt))
1509 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2231 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1510 2232
1511 call_pending (EV_A); 2233 EV_INVOKE_PENDING;
1512
1513 } 2234 }
1514 while (expect_true (activecnt && !loop_done)); 2235 while (expect_true (
2236 activecnt
2237 && !loop_done
2238 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2239 ));
1515 2240
1516 if (loop_done == EVUNLOOP_ONE) 2241 if (loop_done == EVUNLOOP_ONE)
1517 loop_done = EVUNLOOP_CANCEL; 2242 loop_done = EVUNLOOP_CANCEL;
2243
2244#if EV_MINIMAL < 2
2245 --loop_depth;
2246#endif
1518} 2247}
1519 2248
1520void 2249void
1521ev_unloop (EV_P_ int how) 2250ev_unloop (EV_P_ int how)
1522{ 2251{
1523 loop_done = how; 2252 loop_done = how;
1524} 2253}
1525 2254
2255void
2256ev_ref (EV_P)
2257{
2258 ++activecnt;
2259}
2260
2261void
2262ev_unref (EV_P)
2263{
2264 --activecnt;
2265}
2266
2267void
2268ev_now_update (EV_P)
2269{
2270 time_update (EV_A_ 1e100);
2271}
2272
2273void
2274ev_suspend (EV_P)
2275{
2276 ev_now_update (EV_A);
2277}
2278
2279void
2280ev_resume (EV_P)
2281{
2282 ev_tstamp mn_prev = mn_now;
2283
2284 ev_now_update (EV_A);
2285 timers_reschedule (EV_A_ mn_now - mn_prev);
2286#if EV_PERIODIC_ENABLE
2287 /* TODO: really do this? */
2288 periodics_reschedule (EV_A);
2289#endif
2290}
2291
1526/*****************************************************************************/ 2292/*****************************************************************************/
2293/* singly-linked list management, used when the expected list length is short */
1527 2294
1528void inline_size 2295inline_size void
1529wlist_add (WL *head, WL elem) 2296wlist_add (WL *head, WL elem)
1530{ 2297{
1531 elem->next = *head; 2298 elem->next = *head;
1532 *head = elem; 2299 *head = elem;
1533} 2300}
1534 2301
1535void inline_size 2302inline_size void
1536wlist_del (WL *head, WL elem) 2303wlist_del (WL *head, WL elem)
1537{ 2304{
1538 while (*head) 2305 while (*head)
1539 { 2306 {
1540 if (*head == elem) 2307 if (*head == elem)
… …
1545 2312
1546 head = &(*head)->next; 2313 head = &(*head)->next;
1547 } 2314 }
1548} 2315}
1549 2316
1550void inline_speed 2317/* internal, faster, version of ev_clear_pending */
2318inline_speed void
1551clear_pending (EV_P_ W w) 2319clear_pending (EV_P_ W w)
1552{ 2320{
1553 if (w->pending) 2321 if (w->pending)
1554 { 2322 {
1555 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2323 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1556 w->pending = 0; 2324 w->pending = 0;
1557 } 2325 }
1558} 2326}
1559 2327
1560int 2328int
… …
1564 int pending = w_->pending; 2332 int pending = w_->pending;
1565 2333
1566 if (expect_true (pending)) 2334 if (expect_true (pending))
1567 { 2335 {
1568 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2336 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2337 p->w = (W)&pending_w;
1569 w_->pending = 0; 2338 w_->pending = 0;
1570 p->w = 0;
1571 return p->events; 2339 return p->events;
1572 } 2340 }
1573 else 2341 else
1574 return 0; 2342 return 0;
1575} 2343}
1576 2344
1577void inline_size 2345inline_size void
1578pri_adjust (EV_P_ W w) 2346pri_adjust (EV_P_ W w)
1579{ 2347{
1580 int pri = w->priority; 2348 int pri = ev_priority (w);
1581 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2349 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1582 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2350 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1583 w->priority = pri; 2351 ev_set_priority (w, pri);
1584} 2352}
1585 2353
1586void inline_speed 2354inline_speed void
1587ev_start (EV_P_ W w, int active) 2355ev_start (EV_P_ W w, int active)
1588{ 2356{
1589 pri_adjust (EV_A_ w); 2357 pri_adjust (EV_A_ w);
1590 w->active = active; 2358 w->active = active;
1591 ev_ref (EV_A); 2359 ev_ref (EV_A);
1592} 2360}
1593 2361
1594void inline_size 2362inline_size void
1595ev_stop (EV_P_ W w) 2363ev_stop (EV_P_ W w)
1596{ 2364{
1597 ev_unref (EV_A); 2365 ev_unref (EV_A);
1598 w->active = 0; 2366 w->active = 0;
1599} 2367}
… …
1606 int fd = w->fd; 2374 int fd = w->fd;
1607 2375
1608 if (expect_false (ev_is_active (w))) 2376 if (expect_false (ev_is_active (w)))
1609 return; 2377 return;
1610 2378
1611 assert (("ev_io_start called with negative fd", fd >= 0)); 2379 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2380 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2381
2382 EV_FREQUENT_CHECK;
1612 2383
1613 ev_start (EV_A_ (W)w, 1); 2384 ev_start (EV_A_ (W)w, 1);
1614 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2385 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1615 wlist_add (&anfds[fd].head, (WL)w); 2386 wlist_add (&anfds[fd].head, (WL)w);
1616 2387
1617 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2388 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1618 w->events &= ~EV_IOFDSET; 2389 w->events &= ~EV__IOFDSET;
2390
2391 EV_FREQUENT_CHECK;
1619} 2392}
1620 2393
1621void noinline 2394void noinline
1622ev_io_stop (EV_P_ ev_io *w) 2395ev_io_stop (EV_P_ ev_io *w)
1623{ 2396{
1624 clear_pending (EV_A_ (W)w); 2397 clear_pending (EV_A_ (W)w);
1625 if (expect_false (!ev_is_active (w))) 2398 if (expect_false (!ev_is_active (w)))
1626 return; 2399 return;
1627 2400
1628 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2401 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2402
2403 EV_FREQUENT_CHECK;
1629 2404
1630 wlist_del (&anfds[w->fd].head, (WL)w); 2405 wlist_del (&anfds[w->fd].head, (WL)w);
1631 ev_stop (EV_A_ (W)w); 2406 ev_stop (EV_A_ (W)w);
1632 2407
1633 fd_change (EV_A_ w->fd, 1); 2408 fd_change (EV_A_ w->fd, 1);
2409
2410 EV_FREQUENT_CHECK;
1634} 2411}
1635 2412
1636void noinline 2413void noinline
1637ev_timer_start (EV_P_ ev_timer *w) 2414ev_timer_start (EV_P_ ev_timer *w)
1638{ 2415{
1639 if (expect_false (ev_is_active (w))) 2416 if (expect_false (ev_is_active (w)))
1640 return; 2417 return;
1641 2418
1642 ((WT)w)->at += mn_now; 2419 ev_at (w) += mn_now;
1643 2420
1644 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2421 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1645 2422
2423 EV_FREQUENT_CHECK;
2424
2425 ++timercnt;
1646 ev_start (EV_A_ (W)w, ++timercnt); 2426 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1647 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 2427 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1648 timers [timercnt - 1] = (WT)w; 2428 ANHE_w (timers [ev_active (w)]) = (WT)w;
1649 upheap (timers, timercnt - 1); 2429 ANHE_at_cache (timers [ev_active (w)]);
2430 upheap (timers, ev_active (w));
1650 2431
2432 EV_FREQUENT_CHECK;
2433
1651 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 2434 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1652} 2435}
1653 2436
1654void noinline 2437void noinline
1655ev_timer_stop (EV_P_ ev_timer *w) 2438ev_timer_stop (EV_P_ ev_timer *w)
1656{ 2439{
1657 clear_pending (EV_A_ (W)w); 2440 clear_pending (EV_A_ (W)w);
1658 if (expect_false (!ev_is_active (w))) 2441 if (expect_false (!ev_is_active (w)))
1659 return; 2442 return;
1660 2443
1661 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); 2444 EV_FREQUENT_CHECK;
1662 2445
1663 { 2446 {
1664 int active = ((W)w)->active; 2447 int active = ev_active (w);
1665 2448
2449 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2450
2451 --timercnt;
2452
1666 if (expect_true (--active < --timercnt)) 2453 if (expect_true (active < timercnt + HEAP0))
1667 { 2454 {
1668 timers [active] = timers [timercnt]; 2455 timers [active] = timers [timercnt + HEAP0];
1669 adjustheap (timers, timercnt, active); 2456 adjustheap (timers, timercnt, active);
1670 } 2457 }
1671 } 2458 }
1672 2459
1673 ((WT)w)->at -= mn_now; 2460 EV_FREQUENT_CHECK;
2461
2462 ev_at (w) -= mn_now;
1674 2463
1675 ev_stop (EV_A_ (W)w); 2464 ev_stop (EV_A_ (W)w);
1676} 2465}
1677 2466
1678void noinline 2467void noinline
1679ev_timer_again (EV_P_ ev_timer *w) 2468ev_timer_again (EV_P_ ev_timer *w)
1680{ 2469{
2470 EV_FREQUENT_CHECK;
2471
1681 if (ev_is_active (w)) 2472 if (ev_is_active (w))
1682 { 2473 {
1683 if (w->repeat) 2474 if (w->repeat)
1684 { 2475 {
1685 ((WT)w)->at = mn_now + w->repeat; 2476 ev_at (w) = mn_now + w->repeat;
2477 ANHE_at_cache (timers [ev_active (w)]);
1686 adjustheap (timers, timercnt, ((W)w)->active - 1); 2478 adjustheap (timers, timercnt, ev_active (w));
1687 } 2479 }
1688 else 2480 else
1689 ev_timer_stop (EV_A_ w); 2481 ev_timer_stop (EV_A_ w);
1690 } 2482 }
1691 else if (w->repeat) 2483 else if (w->repeat)
1692 { 2484 {
1693 w->at = w->repeat; 2485 ev_at (w) = w->repeat;
1694 ev_timer_start (EV_A_ w); 2486 ev_timer_start (EV_A_ w);
1695 } 2487 }
2488
2489 EV_FREQUENT_CHECK;
1696} 2490}
1697 2491
1698#if EV_PERIODIC_ENABLE 2492#if EV_PERIODIC_ENABLE
1699void noinline 2493void noinline
1700ev_periodic_start (EV_P_ ev_periodic *w) 2494ev_periodic_start (EV_P_ ev_periodic *w)
1701{ 2495{
1702 if (expect_false (ev_is_active (w))) 2496 if (expect_false (ev_is_active (w)))
1703 return; 2497 return;
1704 2498
1705 if (w->reschedule_cb) 2499 if (w->reschedule_cb)
1706 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2500 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1707 else if (w->interval) 2501 else if (w->interval)
1708 { 2502 {
1709 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2503 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1710 /* this formula differs from the one in periodic_reify because we do not always round up */ 2504 /* this formula differs from the one in periodic_reify because we do not always round up */
1711 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2505 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1712 } 2506 }
1713 else 2507 else
1714 ((WT)w)->at = w->offset; 2508 ev_at (w) = w->offset;
1715 2509
2510 EV_FREQUENT_CHECK;
2511
2512 ++periodiccnt;
1716 ev_start (EV_A_ (W)w, ++periodiccnt); 2513 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1717 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 2514 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1718 periodics [periodiccnt - 1] = (WT)w; 2515 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1719 upheap (periodics, periodiccnt - 1); 2516 ANHE_at_cache (periodics [ev_active (w)]);
2517 upheap (periodics, ev_active (w));
1720 2518
2519 EV_FREQUENT_CHECK;
2520
1721 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2521 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1722} 2522}
1723 2523
1724void noinline 2524void noinline
1725ev_periodic_stop (EV_P_ ev_periodic *w) 2525ev_periodic_stop (EV_P_ ev_periodic *w)
1726{ 2526{
1727 clear_pending (EV_A_ (W)w); 2527 clear_pending (EV_A_ (W)w);
1728 if (expect_false (!ev_is_active (w))) 2528 if (expect_false (!ev_is_active (w)))
1729 return; 2529 return;
1730 2530
1731 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); 2531 EV_FREQUENT_CHECK;
1732 2532
1733 { 2533 {
1734 int active = ((W)w)->active; 2534 int active = ev_active (w);
1735 2535
2536 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2537
2538 --periodiccnt;
2539
1736 if (expect_true (--active < --periodiccnt)) 2540 if (expect_true (active < periodiccnt + HEAP0))
1737 { 2541 {
1738 periodics [active] = periodics [periodiccnt]; 2542 periodics [active] = periodics [periodiccnt + HEAP0];
1739 adjustheap (periodics, periodiccnt, active); 2543 adjustheap (periodics, periodiccnt, active);
1740 } 2544 }
1741 } 2545 }
1742 2546
2547 EV_FREQUENT_CHECK;
2548
1743 ev_stop (EV_A_ (W)w); 2549 ev_stop (EV_A_ (W)w);
1744} 2550}
1745 2551
1746void noinline 2552void noinline
1747ev_periodic_again (EV_P_ ev_periodic *w) 2553ev_periodic_again (EV_P_ ev_periodic *w)
… …
1758 2564
1759void noinline 2565void noinline
1760ev_signal_start (EV_P_ ev_signal *w) 2566ev_signal_start (EV_P_ ev_signal *w)
1761{ 2567{
1762#if EV_MULTIPLICITY 2568#if EV_MULTIPLICITY
1763 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2569 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1764#endif 2570#endif
1765 if (expect_false (ev_is_active (w))) 2571 if (expect_false (ev_is_active (w)))
1766 return; 2572 return;
1767 2573
1768 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2574 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2575
2576 evpipe_init (EV_A);
2577
2578 EV_FREQUENT_CHECK;
1769 2579
1770 { 2580 {
1771#ifndef _WIN32 2581#ifndef _WIN32
1772 sigset_t full, prev; 2582 sigset_t full, prev;
1773 sigfillset (&full); 2583 sigfillset (&full);
1774 sigprocmask (SIG_SETMASK, &full, &prev); 2584 sigprocmask (SIG_SETMASK, &full, &prev);
1775#endif 2585#endif
1776 2586
1777 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2587 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
1778 2588
1779#ifndef _WIN32 2589#ifndef _WIN32
1780 sigprocmask (SIG_SETMASK, &prev, 0); 2590 sigprocmask (SIG_SETMASK, &prev, 0);
1781#endif 2591#endif
1782 } 2592 }
… …
1785 wlist_add (&signals [w->signum - 1].head, (WL)w); 2595 wlist_add (&signals [w->signum - 1].head, (WL)w);
1786 2596
1787 if (!((WL)w)->next) 2597 if (!((WL)w)->next)
1788 { 2598 {
1789#if _WIN32 2599#if _WIN32
1790 signal (w->signum, sighandler); 2600 signal (w->signum, ev_sighandler);
1791#else 2601#else
1792 struct sigaction sa; 2602 struct sigaction sa = { };
1793 sa.sa_handler = sighandler; 2603 sa.sa_handler = ev_sighandler;
1794 sigfillset (&sa.sa_mask); 2604 sigfillset (&sa.sa_mask);
1795 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2605 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1796 sigaction (w->signum, &sa, 0); 2606 sigaction (w->signum, &sa, 0);
1797#endif 2607#endif
1798 } 2608 }
2609
2610 EV_FREQUENT_CHECK;
1799} 2611}
1800 2612
1801void noinline 2613void noinline
1802ev_signal_stop (EV_P_ ev_signal *w) 2614ev_signal_stop (EV_P_ ev_signal *w)
1803{ 2615{
1804 clear_pending (EV_A_ (W)w); 2616 clear_pending (EV_A_ (W)w);
1805 if (expect_false (!ev_is_active (w))) 2617 if (expect_false (!ev_is_active (w)))
1806 return; 2618 return;
1807 2619
2620 EV_FREQUENT_CHECK;
2621
1808 wlist_del (&signals [w->signum - 1].head, (WL)w); 2622 wlist_del (&signals [w->signum - 1].head, (WL)w);
1809 ev_stop (EV_A_ (W)w); 2623 ev_stop (EV_A_ (W)w);
1810 2624
1811 if (!signals [w->signum - 1].head) 2625 if (!signals [w->signum - 1].head)
1812 signal (w->signum, SIG_DFL); 2626 signal (w->signum, SIG_DFL);
2627
2628 EV_FREQUENT_CHECK;
1813} 2629}
1814 2630
1815void 2631void
1816ev_child_start (EV_P_ ev_child *w) 2632ev_child_start (EV_P_ ev_child *w)
1817{ 2633{
1818#if EV_MULTIPLICITY 2634#if EV_MULTIPLICITY
1819 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2635 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1820#endif 2636#endif
1821 if (expect_false (ev_is_active (w))) 2637 if (expect_false (ev_is_active (w)))
1822 return; 2638 return;
1823 2639
2640 EV_FREQUENT_CHECK;
2641
1824 ev_start (EV_A_ (W)w, 1); 2642 ev_start (EV_A_ (W)w, 1);
1825 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2643 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2644
2645 EV_FREQUENT_CHECK;
1826} 2646}
1827 2647
1828void 2648void
1829ev_child_stop (EV_P_ ev_child *w) 2649ev_child_stop (EV_P_ ev_child *w)
1830{ 2650{
1831 clear_pending (EV_A_ (W)w); 2651 clear_pending (EV_A_ (W)w);
1832 if (expect_false (!ev_is_active (w))) 2652 if (expect_false (!ev_is_active (w)))
1833 return; 2653 return;
1834 2654
2655 EV_FREQUENT_CHECK;
2656
1835 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2657 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1836 ev_stop (EV_A_ (W)w); 2658 ev_stop (EV_A_ (W)w);
2659
2660 EV_FREQUENT_CHECK;
1837} 2661}
1838 2662
1839#if EV_STAT_ENABLE 2663#if EV_STAT_ENABLE
1840 2664
1841# ifdef _WIN32 2665# ifdef _WIN32
1842# undef lstat 2666# undef lstat
1843# define lstat(a,b) _stati64 (a,b) 2667# define lstat(a,b) _stati64 (a,b)
1844# endif 2668# endif
1845 2669
1846#define DEF_STAT_INTERVAL 5.0074891 2670#define DEF_STAT_INTERVAL 5.0074891
2671#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
1847#define MIN_STAT_INTERVAL 0.1074891 2672#define MIN_STAT_INTERVAL 0.1074891
1848 2673
1849static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2674static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1850 2675
1851#if EV_USE_INOTIFY 2676#if EV_USE_INOTIFY
1852# define EV_INOTIFY_BUFSIZE 8192 2677# define EV_INOTIFY_BUFSIZE 8192
… …
1856{ 2681{
1857 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); 2682 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);
1858 2683
1859 if (w->wd < 0) 2684 if (w->wd < 0)
1860 { 2685 {
2686 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
1861 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2687 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1862 2688
1863 /* monitor some parent directory for speedup hints */ 2689 /* monitor some parent directory for speedup hints */
2690 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2691 /* but an efficiency issue only */
1864 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2692 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1865 { 2693 {
1866 char path [4096]; 2694 char path [4096];
1867 strcpy (path, w->path); 2695 strcpy (path, w->path);
1868 2696
… …
1871 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2699 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1872 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2700 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1873 2701
1874 char *pend = strrchr (path, '/'); 2702 char *pend = strrchr (path, '/');
1875 2703
1876 if (!pend) 2704 if (!pend || pend == path)
1877 break; /* whoops, no '/', complain to your admin */ 2705 break;
1878 2706
1879 *pend = 0; 2707 *pend = 0;
1880 w->wd = inotify_add_watch (fs_fd, path, mask); 2708 w->wd = inotify_add_watch (fs_fd, path, mask);
1881 } 2709 }
1882 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2710 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1883 } 2711 }
1884 } 2712 }
1885 else
1886 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1887 2713
1888 if (w->wd >= 0) 2714 if (w->wd >= 0)
2715 {
1889 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2716 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2717
2718 /* now local changes will be tracked by inotify, but remote changes won't */
2719 /* unless the filesystem it known to be local, we therefore still poll */
2720 /* also do poll on <2.6.25, but with normal frequency */
2721 struct statfs sfs;
2722
2723 if (fs_2625 && !statfs (w->path, &sfs))
2724 if (sfs.f_type == 0x1373 /* devfs */
2725 || sfs.f_type == 0xEF53 /* ext2/3 */
2726 || sfs.f_type == 0x3153464a /* jfs */
2727 || sfs.f_type == 0x52654973 /* reiser3 */
2728 || sfs.f_type == 0x01021994 /* tempfs */
2729 || sfs.f_type == 0x58465342 /* xfs */)
2730 return;
2731
2732 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2733 ev_timer_again (EV_A_ &w->timer);
2734 }
1890} 2735}
1891 2736
1892static void noinline 2737static void noinline
1893infy_del (EV_P_ ev_stat *w) 2738infy_del (EV_P_ ev_stat *w)
1894{ 2739{
… …
1908 2753
1909static void noinline 2754static void noinline
1910infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2755infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1911{ 2756{
1912 if (slot < 0) 2757 if (slot < 0)
1913 /* overflow, need to check for all hahs slots */ 2758 /* overflow, need to check for all hash slots */
1914 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2759 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1915 infy_wd (EV_A_ slot, wd, ev); 2760 infy_wd (EV_A_ slot, wd, ev);
1916 else 2761 else
1917 { 2762 {
1918 WL w_; 2763 WL w_;
… …
1924 2769
1925 if (w->wd == wd || wd == -1) 2770 if (w->wd == wd || wd == -1)
1926 { 2771 {
1927 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2772 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1928 { 2773 {
2774 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1929 w->wd = -1; 2775 w->wd = -1;
1930 infy_add (EV_A_ w); /* re-add, no matter what */ 2776 infy_add (EV_A_ w); /* re-add, no matter what */
1931 } 2777 }
1932 2778
1933 stat_timer_cb (EV_A_ &w->timer, 0); 2779 stat_timer_cb (EV_A_ &w->timer, 0);
… …
1946 2792
1947 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2793 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1948 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2794 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1949} 2795}
1950 2796
1951void inline_size 2797inline_size void
2798check_2625 (EV_P)
2799{
2800 /* kernels < 2.6.25 are borked
2801 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2802 */
2803 struct utsname buf;
2804 int major, minor, micro;
2805
2806 if (uname (&buf))
2807 return;
2808
2809 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2810 return;
2811
2812 if (major < 2
2813 || (major == 2 && minor < 6)
2814 || (major == 2 && minor == 6 && micro < 25))
2815 return;
2816
2817 fs_2625 = 1;
2818}
2819
2820inline_size void
1952infy_init (EV_P) 2821infy_init (EV_P)
1953{ 2822{
1954 if (fs_fd != -2) 2823 if (fs_fd != -2)
1955 return; 2824 return;
2825
2826 fs_fd = -1;
2827
2828 check_2625 (EV_A);
1956 2829
1957 fs_fd = inotify_init (); 2830 fs_fd = inotify_init ();
1958 2831
1959 if (fs_fd >= 0) 2832 if (fs_fd >= 0)
1960 { 2833 {
… …
1962 ev_set_priority (&fs_w, EV_MAXPRI); 2835 ev_set_priority (&fs_w, EV_MAXPRI);
1963 ev_io_start (EV_A_ &fs_w); 2836 ev_io_start (EV_A_ &fs_w);
1964 } 2837 }
1965} 2838}
1966 2839
1967void inline_size 2840inline_size void
1968infy_fork (EV_P) 2841infy_fork (EV_P)
1969{ 2842{
1970 int slot; 2843 int slot;
1971 2844
1972 if (fs_fd < 0) 2845 if (fs_fd < 0)
… …
1988 w->wd = -1; 2861 w->wd = -1;
1989 2862
1990 if (fs_fd >= 0) 2863 if (fs_fd >= 0)
1991 infy_add (EV_A_ w); /* re-add, no matter what */ 2864 infy_add (EV_A_ w); /* re-add, no matter what */
1992 else 2865 else
1993 ev_timer_start (EV_A_ &w->timer); 2866 ev_timer_again (EV_A_ &w->timer);
1994 } 2867 }
1995
1996 } 2868 }
1997} 2869}
1998 2870
2871#endif
2872
2873#ifdef _WIN32
2874# define EV_LSTAT(p,b) _stati64 (p, b)
2875#else
2876# define EV_LSTAT(p,b) lstat (p, b)
1999#endif 2877#endif
2000 2878
2001void 2879void
2002ev_stat_stat (EV_P_ ev_stat *w) 2880ev_stat_stat (EV_P_ ev_stat *w)
2003{ 2881{
… …
2030 || w->prev.st_atime != w->attr.st_atime 2908 || w->prev.st_atime != w->attr.st_atime
2031 || w->prev.st_mtime != w->attr.st_mtime 2909 || w->prev.st_mtime != w->attr.st_mtime
2032 || w->prev.st_ctime != w->attr.st_ctime 2910 || w->prev.st_ctime != w->attr.st_ctime
2033 ) { 2911 ) {
2034 #if EV_USE_INOTIFY 2912 #if EV_USE_INOTIFY
2913 if (fs_fd >= 0)
2914 {
2035 infy_del (EV_A_ w); 2915 infy_del (EV_A_ w);
2036 infy_add (EV_A_ w); 2916 infy_add (EV_A_ w);
2037 ev_stat_stat (EV_A_ w); /* avoid race... */ 2917 ev_stat_stat (EV_A_ w); /* avoid race... */
2918 }
2038 #endif 2919 #endif
2039 2920
2040 ev_feed_event (EV_A_ w, EV_STAT); 2921 ev_feed_event (EV_A_ w, EV_STAT);
2041 } 2922 }
2042} 2923}
… …
2045ev_stat_start (EV_P_ ev_stat *w) 2926ev_stat_start (EV_P_ ev_stat *w)
2046{ 2927{
2047 if (expect_false (ev_is_active (w))) 2928 if (expect_false (ev_is_active (w)))
2048 return; 2929 return;
2049 2930
2050 /* since we use memcmp, we need to clear any padding data etc. */
2051 memset (&w->prev, 0, sizeof (ev_statdata));
2052 memset (&w->attr, 0, sizeof (ev_statdata));
2053
2054 ev_stat_stat (EV_A_ w); 2931 ev_stat_stat (EV_A_ w);
2055 2932
2933 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2056 if (w->interval < MIN_STAT_INTERVAL) 2934 w->interval = MIN_STAT_INTERVAL;
2057 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2058 2935
2059 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 2936 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2060 ev_set_priority (&w->timer, ev_priority (w)); 2937 ev_set_priority (&w->timer, ev_priority (w));
2061 2938
2062#if EV_USE_INOTIFY 2939#if EV_USE_INOTIFY
2063 infy_init (EV_A); 2940 infy_init (EV_A);
2064 2941
2065 if (fs_fd >= 0) 2942 if (fs_fd >= 0)
2066 infy_add (EV_A_ w); 2943 infy_add (EV_A_ w);
2067 else 2944 else
2068#endif 2945#endif
2069 ev_timer_start (EV_A_ &w->timer); 2946 ev_timer_again (EV_A_ &w->timer);
2070 2947
2071 ev_start (EV_A_ (W)w, 1); 2948 ev_start (EV_A_ (W)w, 1);
2949
2950 EV_FREQUENT_CHECK;
2072} 2951}
2073 2952
2074void 2953void
2075ev_stat_stop (EV_P_ ev_stat *w) 2954ev_stat_stop (EV_P_ ev_stat *w)
2076{ 2955{
2077 clear_pending (EV_A_ (W)w); 2956 clear_pending (EV_A_ (W)w);
2078 if (expect_false (!ev_is_active (w))) 2957 if (expect_false (!ev_is_active (w)))
2079 return; 2958 return;
2080 2959
2960 EV_FREQUENT_CHECK;
2961
2081#if EV_USE_INOTIFY 2962#if EV_USE_INOTIFY
2082 infy_del (EV_A_ w); 2963 infy_del (EV_A_ w);
2083#endif 2964#endif
2084 ev_timer_stop (EV_A_ &w->timer); 2965 ev_timer_stop (EV_A_ &w->timer);
2085 2966
2086 ev_stop (EV_A_ (W)w); 2967 ev_stop (EV_A_ (W)w);
2968
2969 EV_FREQUENT_CHECK;
2087} 2970}
2088#endif 2971#endif
2089 2972
2090#if EV_IDLE_ENABLE 2973#if EV_IDLE_ENABLE
2091void 2974void
… …
2093{ 2976{
2094 if (expect_false (ev_is_active (w))) 2977 if (expect_false (ev_is_active (w)))
2095 return; 2978 return;
2096 2979
2097 pri_adjust (EV_A_ (W)w); 2980 pri_adjust (EV_A_ (W)w);
2981
2982 EV_FREQUENT_CHECK;
2098 2983
2099 { 2984 {
2100 int active = ++idlecnt [ABSPRI (w)]; 2985 int active = ++idlecnt [ABSPRI (w)];
2101 2986
2102 ++idleall; 2987 ++idleall;
2103 ev_start (EV_A_ (W)w, active); 2988 ev_start (EV_A_ (W)w, active);
2104 2989
2105 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 2990 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2106 idles [ABSPRI (w)][active - 1] = w; 2991 idles [ABSPRI (w)][active - 1] = w;
2107 } 2992 }
2993
2994 EV_FREQUENT_CHECK;
2108} 2995}
2109 2996
2110void 2997void
2111ev_idle_stop (EV_P_ ev_idle *w) 2998ev_idle_stop (EV_P_ ev_idle *w)
2112{ 2999{
2113 clear_pending (EV_A_ (W)w); 3000 clear_pending (EV_A_ (W)w);
2114 if (expect_false (!ev_is_active (w))) 3001 if (expect_false (!ev_is_active (w)))
2115 return; 3002 return;
2116 3003
3004 EV_FREQUENT_CHECK;
3005
2117 { 3006 {
2118 int active = ((W)w)->active; 3007 int active = ev_active (w);
2119 3008
2120 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3009 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2121 ((W)idles [ABSPRI (w)][active - 1])->active = active; 3010 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2122 3011
2123 ev_stop (EV_A_ (W)w); 3012 ev_stop (EV_A_ (W)w);
2124 --idleall; 3013 --idleall;
2125 } 3014 }
3015
3016 EV_FREQUENT_CHECK;
2126} 3017}
2127#endif 3018#endif
2128 3019
2129void 3020void
2130ev_prepare_start (EV_P_ ev_prepare *w) 3021ev_prepare_start (EV_P_ ev_prepare *w)
2131{ 3022{
2132 if (expect_false (ev_is_active (w))) 3023 if (expect_false (ev_is_active (w)))
2133 return; 3024 return;
3025
3026 EV_FREQUENT_CHECK;
2134 3027
2135 ev_start (EV_A_ (W)w, ++preparecnt); 3028 ev_start (EV_A_ (W)w, ++preparecnt);
2136 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3029 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2137 prepares [preparecnt - 1] = w; 3030 prepares [preparecnt - 1] = w;
3031
3032 EV_FREQUENT_CHECK;
2138} 3033}
2139 3034
2140void 3035void
2141ev_prepare_stop (EV_P_ ev_prepare *w) 3036ev_prepare_stop (EV_P_ ev_prepare *w)
2142{ 3037{
2143 clear_pending (EV_A_ (W)w); 3038 clear_pending (EV_A_ (W)w);
2144 if (expect_false (!ev_is_active (w))) 3039 if (expect_false (!ev_is_active (w)))
2145 return; 3040 return;
2146 3041
3042 EV_FREQUENT_CHECK;
3043
2147 { 3044 {
2148 int active = ((W)w)->active; 3045 int active = ev_active (w);
3046
2149 prepares [active - 1] = prepares [--preparecnt]; 3047 prepares [active - 1] = prepares [--preparecnt];
2150 ((W)prepares [active - 1])->active = active; 3048 ev_active (prepares [active - 1]) = active;
2151 } 3049 }
2152 3050
2153 ev_stop (EV_A_ (W)w); 3051 ev_stop (EV_A_ (W)w);
3052
3053 EV_FREQUENT_CHECK;
2154} 3054}
2155 3055
2156void 3056void
2157ev_check_start (EV_P_ ev_check *w) 3057ev_check_start (EV_P_ ev_check *w)
2158{ 3058{
2159 if (expect_false (ev_is_active (w))) 3059 if (expect_false (ev_is_active (w)))
2160 return; 3060 return;
3061
3062 EV_FREQUENT_CHECK;
2161 3063
2162 ev_start (EV_A_ (W)w, ++checkcnt); 3064 ev_start (EV_A_ (W)w, ++checkcnt);
2163 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3065 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2164 checks [checkcnt - 1] = w; 3066 checks [checkcnt - 1] = w;
3067
3068 EV_FREQUENT_CHECK;
2165} 3069}
2166 3070
2167void 3071void
2168ev_check_stop (EV_P_ ev_check *w) 3072ev_check_stop (EV_P_ ev_check *w)
2169{ 3073{
2170 clear_pending (EV_A_ (W)w); 3074 clear_pending (EV_A_ (W)w);
2171 if (expect_false (!ev_is_active (w))) 3075 if (expect_false (!ev_is_active (w)))
2172 return; 3076 return;
2173 3077
3078 EV_FREQUENT_CHECK;
3079
2174 { 3080 {
2175 int active = ((W)w)->active; 3081 int active = ev_active (w);
3082
2176 checks [active - 1] = checks [--checkcnt]; 3083 checks [active - 1] = checks [--checkcnt];
2177 ((W)checks [active - 1])->active = active; 3084 ev_active (checks [active - 1]) = active;
2178 } 3085 }
2179 3086
2180 ev_stop (EV_A_ (W)w); 3087 ev_stop (EV_A_ (W)w);
3088
3089 EV_FREQUENT_CHECK;
2181} 3090}
2182 3091
2183#if EV_EMBED_ENABLE 3092#if EV_EMBED_ENABLE
2184void noinline 3093void noinline
2185ev_embed_sweep (EV_P_ ev_embed *w) 3094ev_embed_sweep (EV_P_ ev_embed *w)
… …
2193 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3102 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2194 3103
2195 if (ev_cb (w)) 3104 if (ev_cb (w))
2196 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3105 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2197 else 3106 else
2198 ev_embed_sweep (loop, w); 3107 ev_loop (w->other, EVLOOP_NONBLOCK);
2199} 3108}
2200 3109
2201static void 3110static void
2202embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3111embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2203{ 3112{
2204 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3113 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2205 3114
2206 fd_reify (w->other); 3115 {
3116 struct ev_loop *loop = w->other;
3117
3118 while (fdchangecnt)
3119 {
3120 fd_reify (EV_A);
3121 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3122 }
3123 }
2207} 3124}
3125
3126static void
3127embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3128{
3129 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3130
3131 ev_embed_stop (EV_A_ w);
3132
3133 {
3134 struct ev_loop *loop = w->other;
3135
3136 ev_loop_fork (EV_A);
3137 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3138 }
3139
3140 ev_embed_start (EV_A_ w);
3141}
3142
3143#if 0
3144static void
3145embed_idle_cb (EV_P_ ev_idle *idle, int revents)
3146{
3147 ev_idle_stop (EV_A_ idle);
3148}
3149#endif
2208 3150
2209void 3151void
2210ev_embed_start (EV_P_ ev_embed *w) 3152ev_embed_start (EV_P_ ev_embed *w)
2211{ 3153{
2212 if (expect_false (ev_is_active (w))) 3154 if (expect_false (ev_is_active (w)))
2213 return; 3155 return;
2214 3156
2215 { 3157 {
2216 struct ev_loop *loop = w->other; 3158 struct ev_loop *loop = w->other;
2217 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3159 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2218 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_WRITE); 3160 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2219 } 3161 }
3162
3163 EV_FREQUENT_CHECK;
2220 3164
2221 ev_set_priority (&w->io, ev_priority (w)); 3165 ev_set_priority (&w->io, ev_priority (w));
2222 ev_io_start (EV_A_ &w->io); 3166 ev_io_start (EV_A_ &w->io);
2223 3167
2224 ev_prepare_init (&w->prepare, embed_prepare_cb); 3168 ev_prepare_init (&w->prepare, embed_prepare_cb);
2225 ev_set_priority (&w->prepare, EV_MINPRI); 3169 ev_set_priority (&w->prepare, EV_MINPRI);
2226 ev_prepare_start (EV_A_ &w->prepare); 3170 ev_prepare_start (EV_A_ &w->prepare);
2227 3171
3172 ev_fork_init (&w->fork, embed_fork_cb);
3173 ev_fork_start (EV_A_ &w->fork);
3174
3175 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
3176
2228 ev_start (EV_A_ (W)w, 1); 3177 ev_start (EV_A_ (W)w, 1);
3178
3179 EV_FREQUENT_CHECK;
2229} 3180}
2230 3181
2231void 3182void
2232ev_embed_stop (EV_P_ ev_embed *w) 3183ev_embed_stop (EV_P_ ev_embed *w)
2233{ 3184{
2234 clear_pending (EV_A_ (W)w); 3185 clear_pending (EV_A_ (W)w);
2235 if (expect_false (!ev_is_active (w))) 3186 if (expect_false (!ev_is_active (w)))
2236 return; 3187 return;
2237 3188
3189 EV_FREQUENT_CHECK;
3190
2238 ev_io_stop (EV_A_ &w->io); 3191 ev_io_stop (EV_A_ &w->io);
2239 ev_prepare_stop (EV_A_ &w->prepare); 3192 ev_prepare_stop (EV_A_ &w->prepare);
3193 ev_fork_stop (EV_A_ &w->fork);
2240 3194
2241 ev_stop (EV_A_ (W)w); 3195 EV_FREQUENT_CHECK;
2242} 3196}
2243#endif 3197#endif
2244 3198
2245#if EV_FORK_ENABLE 3199#if EV_FORK_ENABLE
2246void 3200void
2247ev_fork_start (EV_P_ ev_fork *w) 3201ev_fork_start (EV_P_ ev_fork *w)
2248{ 3202{
2249 if (expect_false (ev_is_active (w))) 3203 if (expect_false (ev_is_active (w)))
2250 return; 3204 return;
3205
3206 EV_FREQUENT_CHECK;
2251 3207
2252 ev_start (EV_A_ (W)w, ++forkcnt); 3208 ev_start (EV_A_ (W)w, ++forkcnt);
2253 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3209 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2254 forks [forkcnt - 1] = w; 3210 forks [forkcnt - 1] = w;
3211
3212 EV_FREQUENT_CHECK;
2255} 3213}
2256 3214
2257void 3215void
2258ev_fork_stop (EV_P_ ev_fork *w) 3216ev_fork_stop (EV_P_ ev_fork *w)
2259{ 3217{
2260 clear_pending (EV_A_ (W)w); 3218 clear_pending (EV_A_ (W)w);
2261 if (expect_false (!ev_is_active (w))) 3219 if (expect_false (!ev_is_active (w)))
2262 return; 3220 return;
2263 3221
3222 EV_FREQUENT_CHECK;
3223
2264 { 3224 {
2265 int active = ((W)w)->active; 3225 int active = ev_active (w);
3226
2266 forks [active - 1] = forks [--forkcnt]; 3227 forks [active - 1] = forks [--forkcnt];
2267 ((W)forks [active - 1])->active = active; 3228 ev_active (forks [active - 1]) = active;
2268 } 3229 }
2269 3230
2270 ev_stop (EV_A_ (W)w); 3231 ev_stop (EV_A_ (W)w);
3232
3233 EV_FREQUENT_CHECK;
3234}
3235#endif
3236
3237#if EV_ASYNC_ENABLE
3238void
3239ev_async_start (EV_P_ ev_async *w)
3240{
3241 if (expect_false (ev_is_active (w)))
3242 return;
3243
3244 evpipe_init (EV_A);
3245
3246 EV_FREQUENT_CHECK;
3247
3248 ev_start (EV_A_ (W)w, ++asynccnt);
3249 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
3250 asyncs [asynccnt - 1] = w;
3251
3252 EV_FREQUENT_CHECK;
3253}
3254
3255void
3256ev_async_stop (EV_P_ ev_async *w)
3257{
3258 clear_pending (EV_A_ (W)w);
3259 if (expect_false (!ev_is_active (w)))
3260 return;
3261
3262 EV_FREQUENT_CHECK;
3263
3264 {
3265 int active = ev_active (w);
3266
3267 asyncs [active - 1] = asyncs [--asynccnt];
3268 ev_active (asyncs [active - 1]) = active;
3269 }
3270
3271 ev_stop (EV_A_ (W)w);
3272
3273 EV_FREQUENT_CHECK;
3274}
3275
3276void
3277ev_async_send (EV_P_ ev_async *w)
3278{
3279 w->sent = 1;
3280 evpipe_write (EV_A_ &gotasync);
2271} 3281}
2272#endif 3282#endif
2273 3283
2274/*****************************************************************************/ 3284/*****************************************************************************/
2275 3285
… …
2285once_cb (EV_P_ struct ev_once *once, int revents) 3295once_cb (EV_P_ struct ev_once *once, int revents)
2286{ 3296{
2287 void (*cb)(int revents, void *arg) = once->cb; 3297 void (*cb)(int revents, void *arg) = once->cb;
2288 void *arg = once->arg; 3298 void *arg = once->arg;
2289 3299
2290 ev_io_stop (EV_A_ &once->io); 3300 ev_io_stop (EV_A_ &once->io);
2291 ev_timer_stop (EV_A_ &once->to); 3301 ev_timer_stop (EV_A_ &once->to);
2292 ev_free (once); 3302 ev_free (once);
2293 3303
2294 cb (revents, arg); 3304 cb (revents, arg);
2295} 3305}
2296 3306
2297static void 3307static void
2298once_cb_io (EV_P_ ev_io *w, int revents) 3308once_cb_io (EV_P_ ev_io *w, int revents)
2299{ 3309{
2300 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3310 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3311
3312 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2301} 3313}
2302 3314
2303static void 3315static void
2304once_cb_to (EV_P_ ev_timer *w, int revents) 3316once_cb_to (EV_P_ ev_timer *w, int revents)
2305{ 3317{
2306 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3318 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3319
3320 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2307} 3321}
2308 3322
2309void 3323void
2310ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3324ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2311{ 3325{
… …
2333 ev_timer_set (&once->to, timeout, 0.); 3347 ev_timer_set (&once->to, timeout, 0.);
2334 ev_timer_start (EV_A_ &once->to); 3348 ev_timer_start (EV_A_ &once->to);
2335 } 3349 }
2336} 3350}
2337 3351
3352/*****************************************************************************/
3353
3354#if EV_WALK_ENABLE
3355void
3356ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3357{
3358 int i, j;
3359 ev_watcher_list *wl, *wn;
3360
3361 if (types & (EV_IO | EV_EMBED))
3362 for (i = 0; i < anfdmax; ++i)
3363 for (wl = anfds [i].head; wl; )
3364 {
3365 wn = wl->next;
3366
3367#if EV_EMBED_ENABLE
3368 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3369 {
3370 if (types & EV_EMBED)
3371 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3372 }
3373 else
3374#endif
3375#if EV_USE_INOTIFY
3376 if (ev_cb ((ev_io *)wl) == infy_cb)
3377 ;
3378 else
3379#endif
3380 if ((ev_io *)wl != &pipe_w)
3381 if (types & EV_IO)
3382 cb (EV_A_ EV_IO, wl);
3383
3384 wl = wn;
3385 }
3386
3387 if (types & (EV_TIMER | EV_STAT))
3388 for (i = timercnt + HEAP0; i-- > HEAP0; )
3389#if EV_STAT_ENABLE
3390 /*TODO: timer is not always active*/
3391 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3392 {
3393 if (types & EV_STAT)
3394 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3395 }
3396 else
3397#endif
3398 if (types & EV_TIMER)
3399 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3400
3401#if EV_PERIODIC_ENABLE
3402 if (types & EV_PERIODIC)
3403 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3404 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3405#endif
3406
3407#if EV_IDLE_ENABLE
3408 if (types & EV_IDLE)
3409 for (j = NUMPRI; i--; )
3410 for (i = idlecnt [j]; i--; )
3411 cb (EV_A_ EV_IDLE, idles [j][i]);
3412#endif
3413
3414#if EV_FORK_ENABLE
3415 if (types & EV_FORK)
3416 for (i = forkcnt; i--; )
3417 if (ev_cb (forks [i]) != embed_fork_cb)
3418 cb (EV_A_ EV_FORK, forks [i]);
3419#endif
3420
3421#if EV_ASYNC_ENABLE
3422 if (types & EV_ASYNC)
3423 for (i = asynccnt; i--; )
3424 cb (EV_A_ EV_ASYNC, asyncs [i]);
3425#endif
3426
3427 if (types & EV_PREPARE)
3428 for (i = preparecnt; i--; )
3429#if EV_EMBED_ENABLE
3430 if (ev_cb (prepares [i]) != embed_prepare_cb)
3431#endif
3432 cb (EV_A_ EV_PREPARE, prepares [i]);
3433
3434 if (types & EV_CHECK)
3435 for (i = checkcnt; i--; )
3436 cb (EV_A_ EV_CHECK, checks [i]);
3437
3438 if (types & EV_SIGNAL)
3439 for (i = 0; i < signalmax; ++i)
3440 for (wl = signals [i].head; wl; )
3441 {
3442 wn = wl->next;
3443 cb (EV_A_ EV_SIGNAL, wl);
3444 wl = wn;
3445 }
3446
3447 if (types & EV_CHILD)
3448 for (i = EV_PID_HASHSIZE; i--; )
3449 for (wl = childs [i]; wl; )
3450 {
3451 wn = wl->next;
3452 cb (EV_A_ EV_CHILD, wl);
3453 wl = wn;
3454 }
3455/* EV_STAT 0x00001000 /* stat data changed */
3456/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3457}
3458#endif
3459
2338#if EV_MULTIPLICITY 3460#if EV_MULTIPLICITY
2339 #include "ev_wrap.h" 3461 #include "ev_wrap.h"
2340#endif 3462#endif
2341 3463
2342#ifdef __cplusplus 3464#ifdef __cplusplus

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