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Comparing libev/ev.c (file contents):
Revision 1.176 by root, Tue Dec 11 04:31:55 2007 UTC vs.
Revision 1.296 by root, Thu Jul 9 09:11:20 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
… …
202#ifndef CLOCK_REALTIME 310#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME 311# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0 312# define EV_USE_REALTIME 0
205#endif 313#endif
206 314
315#if !EV_STAT_ENABLE
316# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0
318#endif
319
320#if !EV_USE_NANOSLEEP
321# ifndef _WIN32
322# include <sys/select.h>
323# endif
324#endif
325
326#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.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
335#endif
336
207#if EV_SELECT_IS_WINSOCKET 337#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h> 338# include <winsock.h>
209#endif 339#endif
210 340
211#if !EV_STAT_ENABLE 341#if EV_USE_EVENTFD
212# define EV_USE_INOTIFY 0 342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h>
344# ifdef __cplusplus
345extern "C" {
213#endif 346# endif
214 347int eventfd (unsigned int initval, int flags);
215#if EV_USE_INOTIFY 348# ifdef __cplusplus
216# include <sys/inotify.h> 349}
350# endif
217#endif 351#endif
218 352
219/**/ 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
220 360
221/* 361/*
222 * This is used to avoid floating point rounding problems. 362 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics 363 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding 364 * to ensure progress, time-wise, even when rounding
225 * errors are against us. 365 * errors are against us.
226 * This value is good at least till the year 4000 366 * This value is good at least till the year 4000.
227 * and intervals up to 20 years.
228 * Better solutions welcome. 367 * Better solutions welcome.
229 */ 368 */
230#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231 370
232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
235 374
236#if __GNUC__ >= 3 375#if __GNUC__ >= 4
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/* file descriptor info structure */
325typedef struct 496typedef struct
326{ 497{
327 WL head; 498 WL head;
328 unsigned char events; 499 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
329 unsigned char reify; 502 unsigned char unused;
503#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif
330#if EV_SELECT_IS_WINSOCKET 506#if EV_SELECT_IS_WINSOCKET
331 SOCKET handle; 507 SOCKET handle;
332#endif 508#endif
333} ANFD; 509} ANFD;
334 510
511/* stores the pending event set for a given watcher */
335typedef struct 512typedef struct
336{ 513{
337 W w; 514 W w;
338 int events; 515 int events; /* the pending event set for the given watcher */
339} ANPENDING; 516} ANPENDING;
340 517
341#if EV_USE_INOTIFY 518#if EV_USE_INOTIFY
519/* hash table entry per inotify-id */
342typedef struct 520typedef struct
343{ 521{
344 WL head; 522 WL head;
345} ANFS; 523} ANFS;
524#endif
525
526/* Heap Entry */
527#if EV_HEAP_CACHE_AT
528 /* a heap element */
529 typedef struct {
530 ev_tstamp at;
531 WT w;
532 } ANHE;
533
534 #define ANHE_w(he) (he).w /* access watcher, read-write */
535 #define ANHE_at(he) (he).at /* access cached at, read-only */
536 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
537#else
538 /* a heap element */
539 typedef WT ANHE;
540
541 #define ANHE_w(he) (he)
542 #define ANHE_at(he) (he)->at
543 #define ANHE_at_cache(he)
346#endif 544#endif
347 545
348#if EV_MULTIPLICITY 546#if EV_MULTIPLICITY
349 547
350 struct ev_loop 548 struct ev_loop
… …
371 569
372#endif 570#endif
373 571
374/*****************************************************************************/ 572/*****************************************************************************/
375 573
574#ifndef EV_HAVE_EV_TIME
376ev_tstamp 575ev_tstamp
377ev_time (void) 576ev_time (void)
378{ 577{
379#if EV_USE_REALTIME 578#if EV_USE_REALTIME
579 if (expect_true (have_realtime))
580 {
380 struct timespec ts; 581 struct timespec ts;
381 clock_gettime (CLOCK_REALTIME, &ts); 582 clock_gettime (CLOCK_REALTIME, &ts);
382 return ts.tv_sec + ts.tv_nsec * 1e-9; 583 return ts.tv_sec + ts.tv_nsec * 1e-9;
383#else 584 }
585#endif
586
384 struct timeval tv; 587 struct timeval tv;
385 gettimeofday (&tv, 0); 588 gettimeofday (&tv, 0);
386 return tv.tv_sec + tv.tv_usec * 1e-6; 589 return tv.tv_sec + tv.tv_usec * 1e-6;
387#endif
388} 590}
591#endif
389 592
390ev_tstamp inline_size 593inline_size ev_tstamp
391get_clock (void) 594get_clock (void)
392{ 595{
393#if EV_USE_MONOTONIC 596#if EV_USE_MONOTONIC
394 if (expect_true (have_monotonic)) 597 if (expect_true (have_monotonic))
395 { 598 {
… …
408{ 611{
409 return ev_rt_now; 612 return ev_rt_now;
410} 613}
411#endif 614#endif
412 615
413int inline_size 616void
617ev_sleep (ev_tstamp delay)
618{
619 if (delay > 0.)
620 {
621#if EV_USE_NANOSLEEP
622 struct timespec ts;
623
624 ts.tv_sec = (time_t)delay;
625 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
626
627 nanosleep (&ts, 0);
628#elif defined(_WIN32)
629 Sleep ((unsigned long)(delay * 1e3));
630#else
631 struct timeval tv;
632
633 tv.tv_sec = (time_t)delay;
634 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
635
636 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
637 /* somehting not guaranteed by newer posix versions, but guaranteed */
638 /* by older ones */
639 select (0, 0, 0, 0, &tv);
640#endif
641 }
642}
643
644/*****************************************************************************/
645
646#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
647
648/* find a suitable new size for the given array, */
649/* hopefully by rounding to a ncie-to-malloc size */
650inline_size int
414array_nextsize (int elem, int cur, int cnt) 651array_nextsize (int elem, int cur, int cnt)
415{ 652{
416 int ncur = cur + 1; 653 int ncur = cur + 1;
417 654
418 do 655 do
419 ncur <<= 1; 656 ncur <<= 1;
420 while (cnt > ncur); 657 while (cnt > ncur);
421 658
422 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 659 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
423 if (elem * ncur > 4096) 660 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
424 { 661 {
425 ncur *= elem; 662 ncur *= elem;
426 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 663 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
427 ncur = ncur - sizeof (void *) * 4; 664 ncur = ncur - sizeof (void *) * 4;
428 ncur /= elem; 665 ncur /= elem;
429 } 666 }
430 667
431 return ncur; 668 return ncur;
… …
435array_realloc (int elem, void *base, int *cur, int cnt) 672array_realloc (int elem, void *base, int *cur, int cnt)
436{ 673{
437 *cur = array_nextsize (elem, *cur, cnt); 674 *cur = array_nextsize (elem, *cur, cnt);
438 return ev_realloc (base, elem * *cur); 675 return ev_realloc (base, elem * *cur);
439} 676}
677
678#define array_init_zero(base,count) \
679 memset ((void *)(base), 0, sizeof (*(base)) * (count))
440 680
441#define array_needsize(type,base,cur,cnt,init) \ 681#define array_needsize(type,base,cur,cnt,init) \
442 if (expect_false ((cnt) > (cur))) \ 682 if (expect_false ((cnt) > (cur))) \
443 { \ 683 { \
444 int ocur_ = (cur); \ 684 int ocur_ = (cur); \
… …
456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 696 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
457 } 697 }
458#endif 698#endif
459 699
460#define array_free(stem, idx) \ 700#define array_free(stem, idx) \
461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 701 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
462 702
463/*****************************************************************************/ 703/*****************************************************************************/
704
705/* dummy callback for pending events */
706static void noinline
707pendingcb (EV_P_ ev_prepare *w, int revents)
708{
709}
464 710
465void noinline 711void noinline
466ev_feed_event (EV_P_ void *w, int revents) 712ev_feed_event (EV_P_ void *w, int revents)
467{ 713{
468 W w_ = (W)w; 714 W w_ = (W)w;
… …
477 pendings [pri][w_->pending - 1].w = w_; 723 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents; 724 pendings [pri][w_->pending - 1].events = revents;
479 } 725 }
480} 726}
481 727
482void inline_size 728inline_speed void
729feed_reverse (EV_P_ W w)
730{
731 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
732 rfeeds [rfeedcnt++] = w;
733}
734
735inline_size void
736feed_reverse_done (EV_P_ int revents)
737{
738 do
739 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
740 while (rfeedcnt);
741}
742
743inline_speed void
483queue_events (EV_P_ W *events, int eventcnt, int type) 744queue_events (EV_P_ W *events, int eventcnt, int type)
484{ 745{
485 int i; 746 int i;
486 747
487 for (i = 0; i < eventcnt; ++i) 748 for (i = 0; i < eventcnt; ++i)
488 ev_feed_event (EV_A_ events [i], type); 749 ev_feed_event (EV_A_ events [i], type);
489} 750}
490 751
491/*****************************************************************************/ 752/*****************************************************************************/
492 753
493void inline_size 754inline_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) 755fd_event (EV_P_ int fd, int revents)
508{ 756{
509 ANFD *anfd = anfds + fd; 757 ANFD *anfd = anfds + fd;
510 ev_io *w; 758 ev_io *w;
511 759
… …
523{ 771{
524 if (fd >= 0 && fd < anfdmax) 772 if (fd >= 0 && fd < anfdmax)
525 fd_event (EV_A_ fd, revents); 773 fd_event (EV_A_ fd, revents);
526} 774}
527 775
528void inline_size 776/* make sure the external fd watch events are in-sync */
777/* with the kernel/libev internal state */
778inline_size void
529fd_reify (EV_P) 779fd_reify (EV_P)
530{ 780{
531 int i; 781 int i;
532 782
533 for (i = 0; i < fdchangecnt; ++i) 783 for (i = 0; i < fdchangecnt; ++i)
534 { 784 {
535 int fd = fdchanges [i]; 785 int fd = fdchanges [i];
536 ANFD *anfd = anfds + fd; 786 ANFD *anfd = anfds + fd;
537 ev_io *w; 787 ev_io *w;
538 788
539 int events = 0; 789 unsigned char events = 0;
540 790
541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 791 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
542 events |= w->events; 792 events |= (unsigned char)w->events;
543 793
544#if EV_SELECT_IS_WINSOCKET 794#if EV_SELECT_IS_WINSOCKET
545 if (events) 795 if (events)
546 { 796 {
547 unsigned long argp; 797 unsigned long arg;
798 #ifdef EV_FD_TO_WIN32_HANDLE
799 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
800 #else
548 anfd->handle = _get_osfhandle (fd); 801 anfd->handle = _get_osfhandle (fd);
802 #endif
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 803 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
550 } 804 }
551#endif 805#endif
552 806
807 {
808 unsigned char o_events = anfd->events;
809 unsigned char o_reify = anfd->reify;
810
553 anfd->reify = 0; 811 anfd->reify = 0;
554
555 backend_modify (EV_A_ fd, anfd->events, events);
556 anfd->events = events; 812 anfd->events = events;
813
814 if (o_events != events || o_reify & EV__IOFDSET)
815 backend_modify (EV_A_ fd, o_events, events);
816 }
557 } 817 }
558 818
559 fdchangecnt = 0; 819 fdchangecnt = 0;
560} 820}
561 821
562void inline_size 822/* something about the given fd changed */
823inline_size void
563fd_change (EV_P_ int fd) 824fd_change (EV_P_ int fd, int flags)
564{ 825{
565 if (expect_false (anfds [fd].reify)) 826 unsigned char reify = anfds [fd].reify;
566 return;
567
568 anfds [fd].reify = 1; 827 anfds [fd].reify |= flags;
569 828
829 if (expect_true (!reify))
830 {
570 ++fdchangecnt; 831 ++fdchangecnt;
571 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 832 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572 fdchanges [fdchangecnt - 1] = fd; 833 fdchanges [fdchangecnt - 1] = fd;
834 }
573} 835}
574 836
575void inline_speed 837/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
838inline_speed void
576fd_kill (EV_P_ int fd) 839fd_kill (EV_P_ int fd)
577{ 840{
578 ev_io *w; 841 ev_io *w;
579 842
580 while ((w = (ev_io *)anfds [fd].head)) 843 while ((w = (ev_io *)anfds [fd].head))
… …
582 ev_io_stop (EV_A_ w); 845 ev_io_stop (EV_A_ w);
583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 846 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
584 } 847 }
585} 848}
586 849
587int inline_size 850/* check whether the given fd is atcually valid, for error recovery */
851inline_size int
588fd_valid (int fd) 852fd_valid (int fd)
589{ 853{
590#ifdef _WIN32 854#ifdef _WIN32
591 return _get_osfhandle (fd) != -1; 855 return _get_osfhandle (fd) != -1;
592#else 856#else
… …
600{ 864{
601 int fd; 865 int fd;
602 866
603 for (fd = 0; fd < anfdmax; ++fd) 867 for (fd = 0; fd < anfdmax; ++fd)
604 if (anfds [fd].events) 868 if (anfds [fd].events)
605 if (!fd_valid (fd) == -1 && errno == EBADF) 869 if (!fd_valid (fd) && errno == EBADF)
606 fd_kill (EV_A_ fd); 870 fd_kill (EV_A_ fd);
607} 871}
608 872
609/* called on ENOMEM in select/poll to kill some fds and retry */ 873/* called on ENOMEM in select/poll to kill some fds and retry */
610static void noinline 874static void noinline
… …
628 892
629 for (fd = 0; fd < anfdmax; ++fd) 893 for (fd = 0; fd < anfdmax; ++fd)
630 if (anfds [fd].events) 894 if (anfds [fd].events)
631 { 895 {
632 anfds [fd].events = 0; 896 anfds [fd].events = 0;
897 anfds [fd].emask = 0;
633 fd_change (EV_A_ fd); 898 fd_change (EV_A_ fd, EV__IOFDSET | 1);
634 } 899 }
635} 900}
636 901
637/*****************************************************************************/ 902/*****************************************************************************/
638 903
639void inline_speed 904/*
640upheap (WT *heap, int k) 905 * the heap functions want a real array index. array index 0 uis guaranteed to not
641{ 906 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
642 WT w = heap [k]; 907 * the branching factor of the d-tree.
908 */
643 909
644 while (k && heap [k >> 1]->at > w->at) 910/*
645 { 911 * at the moment we allow libev the luxury of two heaps,
646 heap [k] = heap [k >> 1]; 912 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
647 ((W)heap [k])->active = k + 1; 913 * which is more cache-efficient.
648 k >>= 1; 914 * the difference is about 5% with 50000+ watchers.
649 } 915 */
916#if EV_USE_4HEAP
650 917
651 heap [k] = w; 918#define DHEAP 4
652 ((W)heap [k])->active = k + 1; 919#define HEAP0 (DHEAP - 1) /* index of first element in heap */
920#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
921#define UPHEAP_DONE(p,k) ((p) == (k))
653 922
654} 923/* away from the root */
655 924inline_speed void
656void inline_speed
657downheap (WT *heap, int N, int k) 925downheap (ANHE *heap, int N, int k)
658{ 926{
659 WT w = heap [k]; 927 ANHE he = heap [k];
928 ANHE *E = heap + N + HEAP0;
660 929
661 while (k < (N >> 1)) 930 for (;;)
662 { 931 {
663 int j = k << 1; 932 ev_tstamp minat;
933 ANHE *minpos;
934 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
664 935
665 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 936 /* find minimum child */
937 if (expect_true (pos + DHEAP - 1 < E))
666 ++j; 938 {
667 939 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
668 if (w->at <= heap [j]->at) 940 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
941 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
942 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
943 }
944 else if (pos < E)
945 {
946 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
947 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
948 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
949 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
950 }
951 else
669 break; 952 break;
670 953
954 if (ANHE_at (he) <= minat)
955 break;
956
957 heap [k] = *minpos;
958 ev_active (ANHE_w (*minpos)) = k;
959
960 k = minpos - heap;
961 }
962
963 heap [k] = he;
964 ev_active (ANHE_w (he)) = k;
965}
966
967#else /* 4HEAP */
968
969#define HEAP0 1
970#define HPARENT(k) ((k) >> 1)
971#define UPHEAP_DONE(p,k) (!(p))
972
973/* away from the root */
974inline_speed void
975downheap (ANHE *heap, int N, int k)
976{
977 ANHE he = heap [k];
978
979 for (;;)
980 {
981 int c = k << 1;
982
983 if (c > N + HEAP0 - 1)
984 break;
985
986 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
987 ? 1 : 0;
988
989 if (ANHE_at (he) <= ANHE_at (heap [c]))
990 break;
991
671 heap [k] = heap [j]; 992 heap [k] = heap [c];
672 ((W)heap [k])->active = k + 1; 993 ev_active (ANHE_w (heap [k])) = k;
994
673 k = j; 995 k = c;
674 } 996 }
675 997
676 heap [k] = w; 998 heap [k] = he;
677 ((W)heap [k])->active = k + 1; 999 ev_active (ANHE_w (he)) = k;
678} 1000}
1001#endif
679 1002
680void inline_size 1003/* towards the root */
1004inline_speed void
1005upheap (ANHE *heap, int k)
1006{
1007 ANHE he = heap [k];
1008
1009 for (;;)
1010 {
1011 int p = HPARENT (k);
1012
1013 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
1014 break;
1015
1016 heap [k] = heap [p];
1017 ev_active (ANHE_w (heap [k])) = k;
1018 k = p;
1019 }
1020
1021 heap [k] = he;
1022 ev_active (ANHE_w (he)) = k;
1023}
1024
1025/* move an element suitably so it is in a correct place */
1026inline_size void
681adjustheap (WT *heap, int N, int k) 1027adjustheap (ANHE *heap, int N, int k)
682{ 1028{
1029 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
683 upheap (heap, k); 1030 upheap (heap, k);
1031 else
684 downheap (heap, N, k); 1032 downheap (heap, N, k);
1033}
1034
1035/* rebuild the heap: this function is used only once and executed rarely */
1036inline_size void
1037reheap (ANHE *heap, int N)
1038{
1039 int i;
1040
1041 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1042 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1043 for (i = 0; i < N; ++i)
1044 upheap (heap, i + HEAP0);
685} 1045}
686 1046
687/*****************************************************************************/ 1047/*****************************************************************************/
688 1048
1049/* associate signal watchers to a signal signal */
689typedef struct 1050typedef struct
690{ 1051{
691 WL head; 1052 WL head;
692 sig_atomic_t volatile gotsig; 1053 EV_ATOMIC_T gotsig;
693} ANSIG; 1054} ANSIG;
694 1055
695static ANSIG *signals; 1056static ANSIG *signals;
696static int signalmax; 1057static int signalmax;
697 1058
698static int sigpipe [2]; 1059static EV_ATOMIC_T gotsig;
699static sig_atomic_t volatile gotsig;
700static ev_io sigev;
701 1060
702void inline_size 1061/*****************************************************************************/
703signals_init (ANSIG *base, int count)
704{
705 while (count--)
706 {
707 base->head = 0;
708 base->gotsig = 0;
709 1062
710 ++base; 1063/* used to prepare libev internal fd's */
711 } 1064/* this is not fork-safe */
712} 1065inline_speed void
713
714static void
715sighandler (int signum)
716{
717#if _WIN32
718 signal (signum, sighandler);
719#endif
720
721 signals [signum - 1].gotsig = 1;
722
723 if (!gotsig)
724 {
725 int old_errno = errno;
726 gotsig = 1;
727 write (sigpipe [1], &signum, 1);
728 errno = old_errno;
729 }
730}
731
732void noinline
733ev_feed_signal_event (EV_P_ int signum)
734{
735 WL w;
736
737#if EV_MULTIPLICITY
738 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
739#endif
740
741 --signum;
742
743 if (signum < 0 || signum >= signalmax)
744 return;
745
746 signals [signum].gotsig = 0;
747
748 for (w = signals [signum].head; w; w = w->next)
749 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
750}
751
752static void
753sigcb (EV_P_ ev_io *iow, int revents)
754{
755 int signum;
756
757 read (sigpipe [0], &revents, 1);
758 gotsig = 0;
759
760 for (signum = signalmax; signum--; )
761 if (signals [signum].gotsig)
762 ev_feed_signal_event (EV_A_ signum + 1);
763}
764
765void inline_speed
766fd_intern (int fd) 1066fd_intern (int fd)
767{ 1067{
768#ifdef _WIN32 1068#ifdef _WIN32
769 int arg = 1; 1069 unsigned long arg = 1;
770 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1070 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
771#else 1071#else
772 fcntl (fd, F_SETFD, FD_CLOEXEC); 1072 fcntl (fd, F_SETFD, FD_CLOEXEC);
773 fcntl (fd, F_SETFL, O_NONBLOCK); 1073 fcntl (fd, F_SETFL, O_NONBLOCK);
774#endif 1074#endif
775} 1075}
776 1076
777static void noinline 1077static void noinline
778siginit (EV_P) 1078evpipe_init (EV_P)
779{ 1079{
1080 if (!ev_is_active (&pipe_w))
1081 {
1082#if EV_USE_EVENTFD
1083 if ((evfd = eventfd (0, 0)) >= 0)
1084 {
1085 evpipe [0] = -1;
1086 fd_intern (evfd);
1087 ev_io_set (&pipe_w, evfd, EV_READ);
1088 }
1089 else
1090#endif
1091 {
1092 while (pipe (evpipe))
1093 ev_syserr ("(libev) error creating signal/async pipe");
1094
780 fd_intern (sigpipe [0]); 1095 fd_intern (evpipe [0]);
781 fd_intern (sigpipe [1]); 1096 fd_intern (evpipe [1]);
1097 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1098 }
782 1099
783 ev_io_set (&sigev, sigpipe [0], EV_READ);
784 ev_io_start (EV_A_ &sigev); 1100 ev_io_start (EV_A_ &pipe_w);
785 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1101 ev_unref (EV_A); /* watcher should not keep loop alive */
1102 }
1103}
1104
1105inline_size void
1106evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1107{
1108 if (!*flag)
1109 {
1110 int old_errno = errno; /* save errno because write might clobber it */
1111
1112 *flag = 1;
1113
1114#if EV_USE_EVENTFD
1115 if (evfd >= 0)
1116 {
1117 uint64_t counter = 1;
1118 write (evfd, &counter, sizeof (uint64_t));
1119 }
1120 else
1121#endif
1122 write (evpipe [1], &old_errno, 1);
1123
1124 errno = old_errno;
1125 }
1126}
1127
1128/* called whenever the libev signal pipe */
1129/* got some events (signal, async) */
1130static void
1131pipecb (EV_P_ ev_io *iow, int revents)
1132{
1133#if EV_USE_EVENTFD
1134 if (evfd >= 0)
1135 {
1136 uint64_t counter;
1137 read (evfd, &counter, sizeof (uint64_t));
1138 }
1139 else
1140#endif
1141 {
1142 char dummy;
1143 read (evpipe [0], &dummy, 1);
1144 }
1145
1146 if (gotsig && ev_is_default_loop (EV_A))
1147 {
1148 int signum;
1149 gotsig = 0;
1150
1151 for (signum = signalmax; signum--; )
1152 if (signals [signum].gotsig)
1153 ev_feed_signal_event (EV_A_ signum + 1);
1154 }
1155
1156#if EV_ASYNC_ENABLE
1157 if (gotasync)
1158 {
1159 int i;
1160 gotasync = 0;
1161
1162 for (i = asynccnt; i--; )
1163 if (asyncs [i]->sent)
1164 {
1165 asyncs [i]->sent = 0;
1166 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1167 }
1168 }
1169#endif
786} 1170}
787 1171
788/*****************************************************************************/ 1172/*****************************************************************************/
789 1173
1174static void
1175ev_sighandler (int signum)
1176{
1177#if EV_MULTIPLICITY
1178 struct ev_loop *loop = &default_loop_struct;
1179#endif
1180
1181#if _WIN32
1182 signal (signum, ev_sighandler);
1183#endif
1184
1185 signals [signum - 1].gotsig = 1;
1186 evpipe_write (EV_A_ &gotsig);
1187}
1188
1189void noinline
1190ev_feed_signal_event (EV_P_ int signum)
1191{
1192 WL w;
1193
1194#if EV_MULTIPLICITY
1195 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1196#endif
1197
1198 --signum;
1199
1200 if (signum < 0 || signum >= signalmax)
1201 return;
1202
1203 signals [signum].gotsig = 0;
1204
1205 for (w = signals [signum].head; w; w = w->next)
1206 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1207}
1208
1209/*****************************************************************************/
1210
790static ev_child *childs [EV_PID_HASHSIZE]; 1211static WL childs [EV_PID_HASHSIZE];
791 1212
792#ifndef _WIN32 1213#ifndef _WIN32
793 1214
794static ev_signal childev; 1215static ev_signal childev;
795 1216
796void inline_speed 1217#ifndef WIFCONTINUED
1218# define WIFCONTINUED(status) 0
1219#endif
1220
1221/* handle a single child status event */
1222inline_speed void
797child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1223child_reap (EV_P_ int chain, int pid, int status)
798{ 1224{
799 ev_child *w; 1225 ev_child *w;
1226 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
800 1227
801 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1228 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1229 {
802 if (w->pid == pid || !w->pid) 1230 if ((w->pid == pid || !w->pid)
1231 && (!traced || (w->flags & 1)))
803 { 1232 {
804 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 1233 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
805 w->rpid = pid; 1234 w->rpid = pid;
806 w->rstatus = status; 1235 w->rstatus = status;
807 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1236 ev_feed_event (EV_A_ (W)w, EV_CHILD);
808 } 1237 }
1238 }
809} 1239}
810 1240
811#ifndef WCONTINUED 1241#ifndef WCONTINUED
812# define WCONTINUED 0 1242# define WCONTINUED 0
813#endif 1243#endif
814 1244
1245/* called on sigchld etc., calls waitpid */
815static void 1246static void
816childcb (EV_P_ ev_signal *sw, int revents) 1247childcb (EV_P_ ev_signal *sw, int revents)
817{ 1248{
818 int pid, status; 1249 int pid, status;
819 1250
… …
822 if (!WCONTINUED 1253 if (!WCONTINUED
823 || errno != EINVAL 1254 || errno != EINVAL
824 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1255 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
825 return; 1256 return;
826 1257
827 /* make sure we are called again until all childs have been reaped */ 1258 /* make sure we are called again until all children have been reaped */
828 /* we need to do it this way so that the callback gets called before we continue */ 1259 /* we need to do it this way so that the callback gets called before we continue */
829 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1260 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
830 1261
831 child_reap (EV_A_ sw, pid, pid, status); 1262 child_reap (EV_A_ pid, pid, status);
832 if (EV_PID_HASHSIZE > 1) 1263 if (EV_PID_HASHSIZE > 1)
833 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1264 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
834} 1265}
835 1266
836#endif 1267#endif
837 1268
838/*****************************************************************************/ 1269/*****************************************************************************/
… …
900 /* kqueue is borked on everything but netbsd apparently */ 1331 /* kqueue is borked on everything but netbsd apparently */
901 /* it usually doesn't work correctly on anything but sockets and pipes */ 1332 /* it usually doesn't work correctly on anything but sockets and pipes */
902 flags &= ~EVBACKEND_KQUEUE; 1333 flags &= ~EVBACKEND_KQUEUE;
903#endif 1334#endif
904#ifdef __APPLE__ 1335#ifdef __APPLE__
905 // flags &= ~EVBACKEND_KQUEUE; for documentation 1336 /* only select works correctly on that "unix-certified" platform */
906 flags &= ~EVBACKEND_POLL; 1337 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1338 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
907#endif 1339#endif
908 1340
909 return flags; 1341 return flags;
910} 1342}
911 1343
912unsigned int 1344unsigned int
913ev_embeddable_backends (void) 1345ev_embeddable_backends (void)
914{ 1346{
915 return EVBACKEND_EPOLL 1347 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
916 | EVBACKEND_KQUEUE 1348
917 | EVBACKEND_PORT; 1349 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1350 /* please fix it and tell me how to detect the fix */
1351 flags &= ~EVBACKEND_EPOLL;
1352
1353 return flags;
918} 1354}
919 1355
920unsigned int 1356unsigned int
921ev_backend (EV_P) 1357ev_backend (EV_P)
922{ 1358{
… …
927ev_loop_count (EV_P) 1363ev_loop_count (EV_P)
928{ 1364{
929 return loop_count; 1365 return loop_count;
930} 1366}
931 1367
1368unsigned int
1369ev_loop_depth (EV_P)
1370{
1371 return loop_depth;
1372}
1373
1374void
1375ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1376{
1377 io_blocktime = interval;
1378}
1379
1380void
1381ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1382{
1383 timeout_blocktime = interval;
1384}
1385
1386/* initialise a loop structure, must be zero-initialised */
932static void noinline 1387static void noinline
933loop_init (EV_P_ unsigned int flags) 1388loop_init (EV_P_ unsigned int flags)
934{ 1389{
935 if (!backend) 1390 if (!backend)
936 { 1391 {
1392#if EV_USE_REALTIME
1393 if (!have_realtime)
1394 {
1395 struct timespec ts;
1396
1397 if (!clock_gettime (CLOCK_REALTIME, &ts))
1398 have_realtime = 1;
1399 }
1400#endif
1401
937#if EV_USE_MONOTONIC 1402#if EV_USE_MONOTONIC
1403 if (!have_monotonic)
938 { 1404 {
939 struct timespec ts; 1405 struct timespec ts;
1406
940 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1407 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
941 have_monotonic = 1; 1408 have_monotonic = 1;
942 } 1409 }
943#endif 1410#endif
944 1411
945 ev_rt_now = ev_time (); 1412 ev_rt_now = ev_time ();
946 mn_now = get_clock (); 1413 mn_now = get_clock ();
947 now_floor = mn_now; 1414 now_floor = mn_now;
948 rtmn_diff = ev_rt_now - mn_now; 1415 rtmn_diff = ev_rt_now - mn_now;
1416 invoke_cb = ev_invoke_pending;
1417
1418 io_blocktime = 0.;
1419 timeout_blocktime = 0.;
1420 backend = 0;
1421 backend_fd = -1;
1422 gotasync = 0;
1423#if EV_USE_INOTIFY
1424 fs_fd = -2;
1425#endif
949 1426
950 /* pid check not overridable via env */ 1427 /* pid check not overridable via env */
951#ifndef _WIN32 1428#ifndef _WIN32
952 if (flags & EVFLAG_FORKCHECK) 1429 if (flags & EVFLAG_FORKCHECK)
953 curpid = getpid (); 1430 curpid = getpid ();
… …
956 if (!(flags & EVFLAG_NOENV) 1433 if (!(flags & EVFLAG_NOENV)
957 && !enable_secure () 1434 && !enable_secure ()
958 && getenv ("LIBEV_FLAGS")) 1435 && getenv ("LIBEV_FLAGS"))
959 flags = atoi (getenv ("LIBEV_FLAGS")); 1436 flags = atoi (getenv ("LIBEV_FLAGS"));
960 1437
961 if (!(flags & 0x0000ffffUL)) 1438 if (!(flags & 0x0000ffffU))
962 flags |= ev_recommended_backends (); 1439 flags |= ev_recommended_backends ();
963
964 backend = 0;
965 backend_fd = -1;
966#if EV_USE_INOTIFY
967 fs_fd = -2;
968#endif
969 1440
970#if EV_USE_PORT 1441#if EV_USE_PORT
971 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1442 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
972#endif 1443#endif
973#if EV_USE_KQUEUE 1444#if EV_USE_KQUEUE
… …
981#endif 1452#endif
982#if EV_USE_SELECT 1453#if EV_USE_SELECT
983 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1454 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
984#endif 1455#endif
985 1456
1457 ev_prepare_init (&pending_w, pendingcb);
1458
986 ev_init (&sigev, sigcb); 1459 ev_init (&pipe_w, pipecb);
987 ev_set_priority (&sigev, EV_MAXPRI); 1460 ev_set_priority (&pipe_w, EV_MAXPRI);
988 } 1461 }
989} 1462}
990 1463
1464/* free up a loop structure */
991static void noinline 1465static void noinline
992loop_destroy (EV_P) 1466loop_destroy (EV_P)
993{ 1467{
994 int i; 1468 int i;
1469
1470 if (ev_is_active (&pipe_w))
1471 {
1472 ev_ref (EV_A); /* signal watcher */
1473 ev_io_stop (EV_A_ &pipe_w);
1474
1475#if EV_USE_EVENTFD
1476 if (evfd >= 0)
1477 close (evfd);
1478#endif
1479
1480 if (evpipe [0] >= 0)
1481 {
1482 close (evpipe [0]);
1483 close (evpipe [1]);
1484 }
1485 }
995 1486
996#if EV_USE_INOTIFY 1487#if EV_USE_INOTIFY
997 if (fs_fd >= 0) 1488 if (fs_fd >= 0)
998 close (fs_fd); 1489 close (fs_fd);
999#endif 1490#endif
… …
1023#if EV_IDLE_ENABLE 1514#if EV_IDLE_ENABLE
1024 array_free (idle, [i]); 1515 array_free (idle, [i]);
1025#endif 1516#endif
1026 } 1517 }
1027 1518
1519 ev_free (anfds); anfdmax = 0;
1520
1028 /* have to use the microsoft-never-gets-it-right macro */ 1521 /* have to use the microsoft-never-gets-it-right macro */
1522 array_free (rfeed, EMPTY);
1029 array_free (fdchange, EMPTY); 1523 array_free (fdchange, EMPTY);
1030 array_free (timer, EMPTY); 1524 array_free (timer, EMPTY);
1031#if EV_PERIODIC_ENABLE 1525#if EV_PERIODIC_ENABLE
1032 array_free (periodic, EMPTY); 1526 array_free (periodic, EMPTY);
1033#endif 1527#endif
1528#if EV_FORK_ENABLE
1529 array_free (fork, EMPTY);
1530#endif
1034 array_free (prepare, EMPTY); 1531 array_free (prepare, EMPTY);
1035 array_free (check, EMPTY); 1532 array_free (check, EMPTY);
1533#if EV_ASYNC_ENABLE
1534 array_free (async, EMPTY);
1535#endif
1036 1536
1037 backend = 0; 1537 backend = 0;
1038} 1538}
1039 1539
1540#if EV_USE_INOTIFY
1040void inline_size infy_fork (EV_P); 1541inline_size void infy_fork (EV_P);
1542#endif
1041 1543
1042void inline_size 1544inline_size void
1043loop_fork (EV_P) 1545loop_fork (EV_P)
1044{ 1546{
1045#if EV_USE_PORT 1547#if EV_USE_PORT
1046 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1548 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1047#endif 1549#endif
… …
1053#endif 1555#endif
1054#if EV_USE_INOTIFY 1556#if EV_USE_INOTIFY
1055 infy_fork (EV_A); 1557 infy_fork (EV_A);
1056#endif 1558#endif
1057 1559
1058 if (ev_is_active (&sigev)) 1560 if (ev_is_active (&pipe_w))
1059 { 1561 {
1060 /* default loop */ 1562 /* this "locks" the handlers against writing to the pipe */
1563 /* while we modify the fd vars */
1564 gotsig = 1;
1565#if EV_ASYNC_ENABLE
1566 gotasync = 1;
1567#endif
1061 1568
1062 ev_ref (EV_A); 1569 ev_ref (EV_A);
1063 ev_io_stop (EV_A_ &sigev); 1570 ev_io_stop (EV_A_ &pipe_w);
1571
1572#if EV_USE_EVENTFD
1573 if (evfd >= 0)
1574 close (evfd);
1575#endif
1576
1577 if (evpipe [0] >= 0)
1578 {
1064 close (sigpipe [0]); 1579 close (evpipe [0]);
1065 close (sigpipe [1]); 1580 close (evpipe [1]);
1581 }
1066 1582
1067 while (pipe (sigpipe))
1068 syserr ("(libev) error creating pipe");
1069
1070 siginit (EV_A); 1583 evpipe_init (EV_A);
1584 /* now iterate over everything, in case we missed something */
1585 pipecb (EV_A_ &pipe_w, EV_READ);
1071 } 1586 }
1072 1587
1073 postfork = 0; 1588 postfork = 0;
1074} 1589}
1075 1590
1076#if EV_MULTIPLICITY 1591#if EV_MULTIPLICITY
1592
1077struct ev_loop * 1593struct ev_loop *
1078ev_loop_new (unsigned int flags) 1594ev_loop_new (unsigned int flags)
1079{ 1595{
1080 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1596 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1081 1597
… …
1097} 1613}
1098 1614
1099void 1615void
1100ev_loop_fork (EV_P) 1616ev_loop_fork (EV_P)
1101{ 1617{
1102 postfork = 1; 1618 postfork = 1; /* must be in line with ev_default_fork */
1103} 1619}
1104 1620
1621#if EV_VERIFY
1622static void noinline
1623verify_watcher (EV_P_ W w)
1624{
1625 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1626
1627 if (w->pending)
1628 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1629}
1630
1631static void noinline
1632verify_heap (EV_P_ ANHE *heap, int N)
1633{
1634 int i;
1635
1636 for (i = HEAP0; i < N + HEAP0; ++i)
1637 {
1638 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1639 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1640 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1641
1642 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1643 }
1644}
1645
1646static void noinline
1647array_verify (EV_P_ W *ws, int cnt)
1648{
1649 while (cnt--)
1650 {
1651 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1652 verify_watcher (EV_A_ ws [cnt]);
1653 }
1654}
1655#endif
1656
1657void
1658ev_loop_verify (EV_P)
1659{
1660#if EV_VERIFY
1661 int i;
1662 WL w;
1663
1664 assert (activecnt >= -1);
1665
1666 assert (fdchangemax >= fdchangecnt);
1667 for (i = 0; i < fdchangecnt; ++i)
1668 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1669
1670 assert (anfdmax >= 0);
1671 for (i = 0; i < anfdmax; ++i)
1672 for (w = anfds [i].head; w; w = w->next)
1673 {
1674 verify_watcher (EV_A_ (W)w);
1675 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1676 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1677 }
1678
1679 assert (timermax >= timercnt);
1680 verify_heap (EV_A_ timers, timercnt);
1681
1682#if EV_PERIODIC_ENABLE
1683 assert (periodicmax >= periodiccnt);
1684 verify_heap (EV_A_ periodics, periodiccnt);
1685#endif
1686
1687 for (i = NUMPRI; i--; )
1688 {
1689 assert (pendingmax [i] >= pendingcnt [i]);
1690#if EV_IDLE_ENABLE
1691 assert (idleall >= 0);
1692 assert (idlemax [i] >= idlecnt [i]);
1693 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1694#endif
1695 }
1696
1697#if EV_FORK_ENABLE
1698 assert (forkmax >= forkcnt);
1699 array_verify (EV_A_ (W *)forks, forkcnt);
1700#endif
1701
1702#if EV_ASYNC_ENABLE
1703 assert (asyncmax >= asynccnt);
1704 array_verify (EV_A_ (W *)asyncs, asynccnt);
1705#endif
1706
1707 assert (preparemax >= preparecnt);
1708 array_verify (EV_A_ (W *)prepares, preparecnt);
1709
1710 assert (checkmax >= checkcnt);
1711 array_verify (EV_A_ (W *)checks, checkcnt);
1712
1713# if 0
1714 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1715 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1105#endif 1716# endif
1717#endif
1718}
1719
1720#endif /* multiplicity */
1106 1721
1107#if EV_MULTIPLICITY 1722#if EV_MULTIPLICITY
1108struct ev_loop * 1723struct ev_loop *
1109ev_default_loop_init (unsigned int flags) 1724ev_default_loop_init (unsigned int flags)
1110#else 1725#else
1111int 1726int
1112ev_default_loop (unsigned int flags) 1727ev_default_loop (unsigned int flags)
1113#endif 1728#endif
1114{ 1729{
1115 if (sigpipe [0] == sigpipe [1])
1116 if (pipe (sigpipe))
1117 return 0;
1118
1119 if (!ev_default_loop_ptr) 1730 if (!ev_default_loop_ptr)
1120 { 1731 {
1121#if EV_MULTIPLICITY 1732#if EV_MULTIPLICITY
1122 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1733 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1123#else 1734#else
… …
1126 1737
1127 loop_init (EV_A_ flags); 1738 loop_init (EV_A_ flags);
1128 1739
1129 if (ev_backend (EV_A)) 1740 if (ev_backend (EV_A))
1130 { 1741 {
1131 siginit (EV_A);
1132
1133#ifndef _WIN32 1742#ifndef _WIN32
1134 ev_signal_init (&childev, childcb, SIGCHLD); 1743 ev_signal_init (&childev, childcb, SIGCHLD);
1135 ev_set_priority (&childev, EV_MAXPRI); 1744 ev_set_priority (&childev, EV_MAXPRI);
1136 ev_signal_start (EV_A_ &childev); 1745 ev_signal_start (EV_A_ &childev);
1137 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1746 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1149{ 1758{
1150#if EV_MULTIPLICITY 1759#if EV_MULTIPLICITY
1151 struct ev_loop *loop = ev_default_loop_ptr; 1760 struct ev_loop *loop = ev_default_loop_ptr;
1152#endif 1761#endif
1153 1762
1763 ev_default_loop_ptr = 0;
1764
1154#ifndef _WIN32 1765#ifndef _WIN32
1155 ev_ref (EV_A); /* child watcher */ 1766 ev_ref (EV_A); /* child watcher */
1156 ev_signal_stop (EV_A_ &childev); 1767 ev_signal_stop (EV_A_ &childev);
1157#endif 1768#endif
1158 1769
1159 ev_ref (EV_A); /* signal watcher */
1160 ev_io_stop (EV_A_ &sigev);
1161
1162 close (sigpipe [0]); sigpipe [0] = 0;
1163 close (sigpipe [1]); sigpipe [1] = 0;
1164
1165 loop_destroy (EV_A); 1770 loop_destroy (EV_A);
1166} 1771}
1167 1772
1168void 1773void
1169ev_default_fork (void) 1774ev_default_fork (void)
1170{ 1775{
1171#if EV_MULTIPLICITY 1776#if EV_MULTIPLICITY
1172 struct ev_loop *loop = ev_default_loop_ptr; 1777 struct ev_loop *loop = ev_default_loop_ptr;
1173#endif 1778#endif
1174 1779
1175 if (backend) 1780 postfork = 1; /* must be in line with ev_loop_fork */
1176 postfork = 1;
1177} 1781}
1178 1782
1179/*****************************************************************************/ 1783/*****************************************************************************/
1180 1784
1181void 1785void
1182ev_invoke (EV_P_ void *w, int revents) 1786ev_invoke (EV_P_ void *w, int revents)
1183{ 1787{
1184 EV_CB_INVOKE ((W)w, revents); 1788 EV_CB_INVOKE ((W)w, revents);
1185} 1789}
1186 1790
1187void inline_speed 1791void
1188call_pending (EV_P) 1792ev_invoke_pending (EV_P)
1189{ 1793{
1190 int pri; 1794 int pri;
1191 1795
1192 for (pri = NUMPRI; pri--; ) 1796 for (pri = NUMPRI; pri--; )
1193 while (pendingcnt [pri]) 1797 while (pendingcnt [pri])
1194 { 1798 {
1195 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1799 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1196 1800
1197 if (expect_true (p->w))
1198 {
1199 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1801 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1802 /* ^ this is no longer true, as pending_w could be here */
1200 1803
1201 p->w->pending = 0; 1804 p->w->pending = 0;
1202 EV_CB_INVOKE (p->w, p->events); 1805 EV_CB_INVOKE (p->w, p->events);
1203 } 1806 EV_FREQUENT_CHECK;
1204 } 1807 }
1205} 1808}
1206 1809
1207void inline_size
1208timers_reify (EV_P)
1209{
1210 while (timercnt && ((WT)timers [0])->at <= mn_now)
1211 {
1212 ev_timer *w = timers [0];
1213
1214 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1215
1216 /* first reschedule or stop timer */
1217 if (w->repeat)
1218 {
1219 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1220
1221 ((WT)w)->at += w->repeat;
1222 if (((WT)w)->at < mn_now)
1223 ((WT)w)->at = mn_now;
1224
1225 downheap ((WT *)timers, timercnt, 0);
1226 }
1227 else
1228 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229
1230 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1231 }
1232}
1233
1234#if EV_PERIODIC_ENABLE
1235void inline_size
1236periodics_reify (EV_P)
1237{
1238 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239 {
1240 ev_periodic *w = periodics [0];
1241
1242 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1243
1244 /* first reschedule or stop timer */
1245 if (w->reschedule_cb)
1246 {
1247 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1248 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249 downheap ((WT *)periodics, periodiccnt, 0);
1250 }
1251 else if (w->interval)
1252 {
1253 ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval;
1254 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1255 downheap ((WT *)periodics, periodiccnt, 0);
1256 }
1257 else
1258 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259
1260 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1261 }
1262}
1263
1264static void noinline
1265periodics_reschedule (EV_P)
1266{
1267 int i;
1268
1269 /* adjust periodics after time jump */
1270 for (i = 0; i < periodiccnt; ++i)
1271 {
1272 ev_periodic *w = periodics [i];
1273
1274 if (w->reschedule_cb)
1275 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276 else if (w->interval)
1277 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278 }
1279
1280 /* now rebuild the heap */
1281 for (i = periodiccnt >> 1; i--; )
1282 downheap ((WT *)periodics, periodiccnt, i);
1283}
1284#endif
1285
1286#if EV_IDLE_ENABLE 1810#if EV_IDLE_ENABLE
1287void inline_size 1811/* make idle watchers pending. this handles the "call-idle */
1812/* only when higher priorities are idle" logic */
1813inline_size void
1288idle_reify (EV_P) 1814idle_reify (EV_P)
1289{ 1815{
1290 if (expect_false (idleall)) 1816 if (expect_false (idleall))
1291 { 1817 {
1292 int pri; 1818 int pri;
… …
1304 } 1830 }
1305 } 1831 }
1306} 1832}
1307#endif 1833#endif
1308 1834
1309int inline_size 1835/* make timers pending */
1310time_update_monotonic (EV_P) 1836inline_size void
1837timers_reify (EV_P)
1311{ 1838{
1839 EV_FREQUENT_CHECK;
1840
1841 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1842 {
1843 do
1844 {
1845 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1846
1847 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1848
1849 /* first reschedule or stop timer */
1850 if (w->repeat)
1851 {
1852 ev_at (w) += w->repeat;
1853 if (ev_at (w) < mn_now)
1854 ev_at (w) = mn_now;
1855
1856 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1857
1858 ANHE_at_cache (timers [HEAP0]);
1859 downheap (timers, timercnt, HEAP0);
1860 }
1861 else
1862 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1863
1864 EV_FREQUENT_CHECK;
1865 feed_reverse (EV_A_ (W)w);
1866 }
1867 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1868
1869 feed_reverse_done (EV_A_ EV_TIMEOUT);
1870 }
1871}
1872
1873#if EV_PERIODIC_ENABLE
1874/* make periodics pending */
1875inline_size void
1876periodics_reify (EV_P)
1877{
1878 EV_FREQUENT_CHECK;
1879
1880 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1881 {
1882 int feed_count = 0;
1883
1884 do
1885 {
1886 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1887
1888 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
1889
1890 /* first reschedule or stop timer */
1891 if (w->reschedule_cb)
1892 {
1893 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1894
1895 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1896
1897 ANHE_at_cache (periodics [HEAP0]);
1898 downheap (periodics, periodiccnt, HEAP0);
1899 }
1900 else if (w->interval)
1901 {
1902 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1903 /* if next trigger time is not sufficiently in the future, put it there */
1904 /* this might happen because of floating point inexactness */
1905 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1906 {
1907 ev_at (w) += w->interval;
1908
1909 /* if interval is unreasonably low we might still have a time in the past */
1910 /* so correct this. this will make the periodic very inexact, but the user */
1911 /* has effectively asked to get triggered more often than possible */
1912 if (ev_at (w) < ev_rt_now)
1913 ev_at (w) = ev_rt_now;
1914 }
1915
1916 ANHE_at_cache (periodics [HEAP0]);
1917 downheap (periodics, periodiccnt, HEAP0);
1918 }
1919 else
1920 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1921
1922 EV_FREQUENT_CHECK;
1923 feed_reverse (EV_A_ (W)w);
1924 }
1925 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1926
1927 feed_reverse_done (EV_A_ EV_PERIODIC);
1928 }
1929}
1930
1931/* simply recalculate all periodics */
1932/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1933static void noinline
1934periodics_reschedule (EV_P)
1935{
1936 int i;
1937
1938 /* adjust periodics after time jump */
1939 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
1940 {
1941 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1942
1943 if (w->reschedule_cb)
1944 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1945 else if (w->interval)
1946 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1947
1948 ANHE_at_cache (periodics [i]);
1949 }
1950
1951 reheap (periodics, periodiccnt);
1952}
1953#endif
1954
1955/* adjust all timers by a given offset */
1956static void noinline
1957timers_reschedule (EV_P_ ev_tstamp adjust)
1958{
1959 int i;
1960
1961 for (i = 0; i < timercnt; ++i)
1962 {
1963 ANHE *he = timers + i + HEAP0;
1964 ANHE_w (*he)->at += adjust;
1965 ANHE_at_cache (*he);
1966 }
1967}
1968
1969/* fetch new monotonic and realtime times from the kernel */
1970/* also detetc if there was a timejump, and act accordingly */
1971inline_speed void
1972time_update (EV_P_ ev_tstamp max_block)
1973{
1974#if EV_USE_MONOTONIC
1975 if (expect_true (have_monotonic))
1976 {
1977 int i;
1978 ev_tstamp odiff = rtmn_diff;
1979
1312 mn_now = get_clock (); 1980 mn_now = get_clock ();
1313 1981
1982 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1983 /* interpolate in the meantime */
1314 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1984 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315 { 1985 {
1316 ev_rt_now = rtmn_diff + mn_now; 1986 ev_rt_now = rtmn_diff + mn_now;
1317 return 0; 1987 return;
1318 } 1988 }
1319 else 1989
1320 {
1321 now_floor = mn_now; 1990 now_floor = mn_now;
1322 ev_rt_now = ev_time (); 1991 ev_rt_now = ev_time ();
1323 return 1;
1324 }
1325}
1326 1992
1327void inline_size 1993 /* loop a few times, before making important decisions.
1328time_update (EV_P) 1994 * on the choice of "4": one iteration isn't enough,
1329{ 1995 * in case we get preempted during the calls to
1330 int i; 1996 * ev_time and get_clock. a second call is almost guaranteed
1331 1997 * to succeed in that case, though. and looping a few more times
1332#if EV_USE_MONOTONIC 1998 * doesn't hurt either as we only do this on time-jumps or
1333 if (expect_true (have_monotonic)) 1999 * in the unlikely event of having been preempted here.
1334 { 2000 */
1335 if (time_update_monotonic (EV_A)) 2001 for (i = 4; --i; )
1336 { 2002 {
1337 ev_tstamp odiff = rtmn_diff;
1338
1339 /* loop a few times, before making important decisions.
1340 * on the choice of "4": one iteration isn't enough,
1341 * in case we get preempted during the calls to
1342 * ev_time and get_clock. a second call is almost guaranteed
1343 * to succeed in that case, though. and looping a few more times
1344 * doesn't hurt either as we only do this on time-jumps or
1345 * in the unlikely event of having been preempted here.
1346 */
1347 for (i = 4; --i; )
1348 {
1349 rtmn_diff = ev_rt_now - mn_now; 2003 rtmn_diff = ev_rt_now - mn_now;
1350 2004
1351 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2005 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1352 return; /* all is well */ 2006 return; /* all is well */
1353 2007
1354 ev_rt_now = ev_time (); 2008 ev_rt_now = ev_time ();
1355 mn_now = get_clock (); 2009 mn_now = get_clock ();
1356 now_floor = mn_now; 2010 now_floor = mn_now;
1357 } 2011 }
1358 2012
2013 /* no timer adjustment, as the monotonic clock doesn't jump */
2014 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1359# if EV_PERIODIC_ENABLE 2015# if EV_PERIODIC_ENABLE
1360 periodics_reschedule (EV_A); 2016 periodics_reschedule (EV_A);
1361# endif 2017# endif
1362 /* no timer adjustment, as the monotonic clock doesn't jump */
1363 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364 }
1365 } 2018 }
1366 else 2019 else
1367#endif 2020#endif
1368 { 2021 {
1369 ev_rt_now = ev_time (); 2022 ev_rt_now = ev_time ();
1370 2023
1371 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 2024 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372 { 2025 {
2026 /* adjust timers. this is easy, as the offset is the same for all of them */
2027 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1373#if EV_PERIODIC_ENABLE 2028#if EV_PERIODIC_ENABLE
1374 periodics_reschedule (EV_A); 2029 periodics_reschedule (EV_A);
1375#endif 2030#endif
1376
1377 /* adjust timers. this is easy, as the offset is the same for all of them */
1378 for (i = 0; i < timercnt; ++i)
1379 ((WT)timers [i])->at += ev_rt_now - mn_now;
1380 } 2031 }
1381 2032
1382 mn_now = ev_rt_now; 2033 mn_now = ev_rt_now;
1383 } 2034 }
1384} 2035}
1385 2036
1386void 2037void
1387ev_ref (EV_P)
1388{
1389 ++activecnt;
1390}
1391
1392void
1393ev_unref (EV_P)
1394{
1395 --activecnt;
1396}
1397
1398static int loop_done;
1399
1400void
1401ev_loop (EV_P_ int flags) 2038ev_loop (EV_P_ int flags)
1402{ 2039{
1403 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 2040 ++loop_depth;
1404 ? EVUNLOOP_ONE
1405 : EVUNLOOP_CANCEL;
1406 2041
2042 loop_done = EVUNLOOP_CANCEL;
2043
1407 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2044 invoke_cb (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1408 2045
1409 do 2046 do
1410 { 2047 {
2048#if EV_VERIFY >= 2
2049 ev_loop_verify (EV_A);
2050#endif
2051
1411#ifndef _WIN32 2052#ifndef _WIN32
1412 if (expect_false (curpid)) /* penalise the forking check even more */ 2053 if (expect_false (curpid)) /* penalise the forking check even more */
1413 if (expect_false (getpid () != curpid)) 2054 if (expect_false (getpid () != curpid))
1414 { 2055 {
1415 curpid = getpid (); 2056 curpid = getpid ();
… …
1421 /* we might have forked, so queue fork handlers */ 2062 /* we might have forked, so queue fork handlers */
1422 if (expect_false (postfork)) 2063 if (expect_false (postfork))
1423 if (forkcnt) 2064 if (forkcnt)
1424 { 2065 {
1425 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2066 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1426 call_pending (EV_A); 2067 invoke_cb (EV_A);
1427 } 2068 }
1428#endif 2069#endif
1429 2070
1430 /* queue prepare watchers (and execute them) */ 2071 /* queue prepare watchers (and execute them) */
1431 if (expect_false (preparecnt)) 2072 if (expect_false (preparecnt))
1432 { 2073 {
1433 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2074 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1434 call_pending (EV_A); 2075 invoke_cb (EV_A);
1435 } 2076 }
1436
1437 if (expect_false (!activecnt))
1438 break;
1439 2077
1440 /* we might have forked, so reify kernel state if necessary */ 2078 /* we might have forked, so reify kernel state if necessary */
1441 if (expect_false (postfork)) 2079 if (expect_false (postfork))
1442 loop_fork (EV_A); 2080 loop_fork (EV_A);
1443 2081
1444 /* update fd-related kernel structures */ 2082 /* update fd-related kernel structures */
1445 fd_reify (EV_A); 2083 fd_reify (EV_A);
1446 2084
1447 /* calculate blocking time */ 2085 /* calculate blocking time */
1448 { 2086 {
1449 ev_tstamp block; 2087 ev_tstamp waittime = 0.;
2088 ev_tstamp sleeptime = 0.;
1450 2089
1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 2090 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1452 block = 0.; /* do not block at all */
1453 else
1454 { 2091 {
2092 /* remember old timestamp for io_blocktime calculation */
2093 ev_tstamp prev_mn_now = mn_now;
2094
1455 /* update time to cancel out callback processing overhead */ 2095 /* update time to cancel out callback processing overhead */
1456#if EV_USE_MONOTONIC
1457 if (expect_true (have_monotonic))
1458 time_update_monotonic (EV_A); 2096 time_update (EV_A_ 1e100);
1459 else
1460#endif
1461 {
1462 ev_rt_now = ev_time ();
1463 mn_now = ev_rt_now;
1464 }
1465 2097
1466 block = MAX_BLOCKTIME; 2098 waittime = MAX_BLOCKTIME;
1467 2099
1468 if (timercnt) 2100 if (timercnt)
1469 { 2101 {
1470 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 2102 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1471 if (block > to) block = to; 2103 if (waittime > to) waittime = to;
1472 } 2104 }
1473 2105
1474#if EV_PERIODIC_ENABLE 2106#if EV_PERIODIC_ENABLE
1475 if (periodiccnt) 2107 if (periodiccnt)
1476 { 2108 {
1477 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 2109 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1478 if (block > to) block = to; 2110 if (waittime > to) waittime = to;
1479 } 2111 }
1480#endif 2112#endif
1481 2113
2114 /* don't let timeouts decrease the waittime below timeout_blocktime */
2115 if (expect_false (waittime < timeout_blocktime))
2116 waittime = timeout_blocktime;
2117
2118 /* extra check because io_blocktime is commonly 0 */
1482 if (expect_false (block < 0.)) block = 0.; 2119 if (expect_false (io_blocktime))
2120 {
2121 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2122
2123 if (sleeptime > waittime - backend_fudge)
2124 sleeptime = waittime - backend_fudge;
2125
2126 if (expect_true (sleeptime > 0.))
2127 {
2128 ev_sleep (sleeptime);
2129 waittime -= sleeptime;
2130 }
2131 }
1483 } 2132 }
1484 2133
1485 ++loop_count; 2134 ++loop_count;
1486 backend_poll (EV_A_ block); 2135 backend_poll (EV_A_ waittime);
2136
2137 /* update ev_rt_now, do magic */
2138 time_update (EV_A_ waittime + sleeptime);
1487 } 2139 }
1488
1489 /* update ev_rt_now, do magic */
1490 time_update (EV_A);
1491 2140
1492 /* queue pending timers and reschedule them */ 2141 /* queue pending timers and reschedule them */
1493 timers_reify (EV_A); /* relative timers called last */ 2142 timers_reify (EV_A); /* relative timers called last */
1494#if EV_PERIODIC_ENABLE 2143#if EV_PERIODIC_ENABLE
1495 periodics_reify (EV_A); /* absolute timers called first */ 2144 periodics_reify (EV_A); /* absolute timers called first */
… …
1502 2151
1503 /* queue check watchers, to be executed first */ 2152 /* queue check watchers, to be executed first */
1504 if (expect_false (checkcnt)) 2153 if (expect_false (checkcnt))
1505 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2154 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1506 2155
1507 call_pending (EV_A); 2156 invoke_cb (EV_A);
1508
1509 } 2157 }
1510 while (expect_true (activecnt && !loop_done)); 2158 while (expect_true (
2159 activecnt
2160 && !loop_done
2161 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2162 ));
1511 2163
1512 if (loop_done == EVUNLOOP_ONE) 2164 if (loop_done == EVUNLOOP_ONE)
1513 loop_done = EVUNLOOP_CANCEL; 2165 loop_done = EVUNLOOP_CANCEL;
2166
2167 --loop_depth;
1514} 2168}
1515 2169
1516void 2170void
1517ev_unloop (EV_P_ int how) 2171ev_unloop (EV_P_ int how)
1518{ 2172{
1519 loop_done = how; 2173 loop_done = how;
1520} 2174}
1521 2175
2176void
2177ev_ref (EV_P)
2178{
2179 ++activecnt;
2180}
2181
2182void
2183ev_unref (EV_P)
2184{
2185 --activecnt;
2186}
2187
2188void
2189ev_now_update (EV_P)
2190{
2191 time_update (EV_A_ 1e100);
2192}
2193
2194void
2195ev_suspend (EV_P)
2196{
2197 ev_now_update (EV_A);
2198}
2199
2200void
2201ev_resume (EV_P)
2202{
2203 ev_tstamp mn_prev = mn_now;
2204
2205 ev_now_update (EV_A);
2206 timers_reschedule (EV_A_ mn_now - mn_prev);
2207#if EV_PERIODIC_ENABLE
2208 /* TODO: really do this? */
2209 periodics_reschedule (EV_A);
2210#endif
2211}
2212
1522/*****************************************************************************/ 2213/*****************************************************************************/
2214/* singly-linked list management, used when the expected list length is short */
1523 2215
1524void inline_size 2216inline_size void
1525wlist_add (WL *head, WL elem) 2217wlist_add (WL *head, WL elem)
1526{ 2218{
1527 elem->next = *head; 2219 elem->next = *head;
1528 *head = elem; 2220 *head = elem;
1529} 2221}
1530 2222
1531void inline_size 2223inline_size void
1532wlist_del (WL *head, WL elem) 2224wlist_del (WL *head, WL elem)
1533{ 2225{
1534 while (*head) 2226 while (*head)
1535 { 2227 {
1536 if (*head == elem) 2228 if (*head == elem)
… …
1541 2233
1542 head = &(*head)->next; 2234 head = &(*head)->next;
1543 } 2235 }
1544} 2236}
1545 2237
1546void inline_speed 2238/* internal, faster, version of ev_clear_pending */
2239inline_speed void
1547clear_pending (EV_P_ W w) 2240clear_pending (EV_P_ W w)
1548{ 2241{
1549 if (w->pending) 2242 if (w->pending)
1550 { 2243 {
1551 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2244 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1552 w->pending = 0; 2245 w->pending = 0;
1553 } 2246 }
1554} 2247}
1555 2248
1556int 2249int
… …
1560 int pending = w_->pending; 2253 int pending = w_->pending;
1561 2254
1562 if (expect_true (pending)) 2255 if (expect_true (pending))
1563 { 2256 {
1564 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2257 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2258 p->w = (W)&pending_w;
1565 w_->pending = 0; 2259 w_->pending = 0;
1566 p->w = 0;
1567 return p->events; 2260 return p->events;
1568 } 2261 }
1569 else 2262 else
1570 return 0; 2263 return 0;
1571} 2264}
1572 2265
1573void inline_size 2266inline_size void
1574pri_adjust (EV_P_ W w) 2267pri_adjust (EV_P_ W w)
1575{ 2268{
1576 int pri = w->priority; 2269 int pri = ev_priority (w);
1577 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2270 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1578 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2271 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1579 w->priority = pri; 2272 ev_set_priority (w, pri);
1580} 2273}
1581 2274
1582void inline_speed 2275inline_speed void
1583ev_start (EV_P_ W w, int active) 2276ev_start (EV_P_ W w, int active)
1584{ 2277{
1585 pri_adjust (EV_A_ w); 2278 pri_adjust (EV_A_ w);
1586 w->active = active; 2279 w->active = active;
1587 ev_ref (EV_A); 2280 ev_ref (EV_A);
1588} 2281}
1589 2282
1590void inline_size 2283inline_size void
1591ev_stop (EV_P_ W w) 2284ev_stop (EV_P_ W w)
1592{ 2285{
1593 ev_unref (EV_A); 2286 ev_unref (EV_A);
1594 w->active = 0; 2287 w->active = 0;
1595} 2288}
… …
1602 int fd = w->fd; 2295 int fd = w->fd;
1603 2296
1604 if (expect_false (ev_is_active (w))) 2297 if (expect_false (ev_is_active (w)))
1605 return; 2298 return;
1606 2299
1607 assert (("ev_io_start called with negative fd", fd >= 0)); 2300 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2301 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2302
2303 EV_FREQUENT_CHECK;
1608 2304
1609 ev_start (EV_A_ (W)w, 1); 2305 ev_start (EV_A_ (W)w, 1);
1610 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2306 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1611 wlist_add ((WL *)&anfds[fd].head, (WL)w); 2307 wlist_add (&anfds[fd].head, (WL)w);
1612 2308
1613 fd_change (EV_A_ fd); 2309 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2310 w->events &= ~EV__IOFDSET;
2311
2312 EV_FREQUENT_CHECK;
1614} 2313}
1615 2314
1616void noinline 2315void noinline
1617ev_io_stop (EV_P_ ev_io *w) 2316ev_io_stop (EV_P_ ev_io *w)
1618{ 2317{
1619 clear_pending (EV_A_ (W)w); 2318 clear_pending (EV_A_ (W)w);
1620 if (expect_false (!ev_is_active (w))) 2319 if (expect_false (!ev_is_active (w)))
1621 return; 2320 return;
1622 2321
1623 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2322 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624 2323
2324 EV_FREQUENT_CHECK;
2325
1625 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 2326 wlist_del (&anfds[w->fd].head, (WL)w);
1626 ev_stop (EV_A_ (W)w); 2327 ev_stop (EV_A_ (W)w);
1627 2328
1628 fd_change (EV_A_ w->fd); 2329 fd_change (EV_A_ w->fd, 1);
2330
2331 EV_FREQUENT_CHECK;
1629} 2332}
1630 2333
1631void noinline 2334void noinline
1632ev_timer_start (EV_P_ ev_timer *w) 2335ev_timer_start (EV_P_ ev_timer *w)
1633{ 2336{
1634 if (expect_false (ev_is_active (w))) 2337 if (expect_false (ev_is_active (w)))
1635 return; 2338 return;
1636 2339
1637 ((WT)w)->at += mn_now; 2340 ev_at (w) += mn_now;
1638 2341
1639 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2342 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640 2343
2344 EV_FREQUENT_CHECK;
2345
2346 ++timercnt;
1641 ev_start (EV_A_ (W)w, ++timercnt); 2347 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1642 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 2348 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1643 timers [timercnt - 1] = w; 2349 ANHE_w (timers [ev_active (w)]) = (WT)w;
1644 upheap ((WT *)timers, timercnt - 1); 2350 ANHE_at_cache (timers [ev_active (w)]);
2351 upheap (timers, ev_active (w));
1645 2352
2353 EV_FREQUENT_CHECK;
2354
1646 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 2355 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1647} 2356}
1648 2357
1649void noinline 2358void noinline
1650ev_timer_stop (EV_P_ ev_timer *w) 2359ev_timer_stop (EV_P_ ev_timer *w)
1651{ 2360{
1652 clear_pending (EV_A_ (W)w); 2361 clear_pending (EV_A_ (W)w);
1653 if (expect_false (!ev_is_active (w))) 2362 if (expect_false (!ev_is_active (w)))
1654 return; 2363 return;
1655 2364
1656 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 2365 EV_FREQUENT_CHECK;
1657 2366
1658 { 2367 {
1659 int active = ((W)w)->active; 2368 int active = ev_active (w);
1660 2369
2370 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2371
2372 --timercnt;
2373
1661 if (expect_true (--active < --timercnt)) 2374 if (expect_true (active < timercnt + HEAP0))
1662 { 2375 {
1663 timers [active] = timers [timercnt]; 2376 timers [active] = timers [timercnt + HEAP0];
1664 adjustheap ((WT *)timers, timercnt, active); 2377 adjustheap (timers, timercnt, active);
1665 } 2378 }
1666 } 2379 }
1667 2380
1668 ((WT)w)->at -= mn_now; 2381 EV_FREQUENT_CHECK;
2382
2383 ev_at (w) -= mn_now;
1669 2384
1670 ev_stop (EV_A_ (W)w); 2385 ev_stop (EV_A_ (W)w);
1671} 2386}
1672 2387
1673void noinline 2388void noinline
1674ev_timer_again (EV_P_ ev_timer *w) 2389ev_timer_again (EV_P_ ev_timer *w)
1675{ 2390{
2391 EV_FREQUENT_CHECK;
2392
1676 if (ev_is_active (w)) 2393 if (ev_is_active (w))
1677 { 2394 {
1678 if (w->repeat) 2395 if (w->repeat)
1679 { 2396 {
1680 ((WT)w)->at = mn_now + w->repeat; 2397 ev_at (w) = mn_now + w->repeat;
2398 ANHE_at_cache (timers [ev_active (w)]);
1681 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 2399 adjustheap (timers, timercnt, ev_active (w));
1682 } 2400 }
1683 else 2401 else
1684 ev_timer_stop (EV_A_ w); 2402 ev_timer_stop (EV_A_ w);
1685 } 2403 }
1686 else if (w->repeat) 2404 else if (w->repeat)
1687 { 2405 {
1688 w->at = w->repeat; 2406 ev_at (w) = w->repeat;
1689 ev_timer_start (EV_A_ w); 2407 ev_timer_start (EV_A_ w);
1690 } 2408 }
2409
2410 EV_FREQUENT_CHECK;
1691} 2411}
1692 2412
1693#if EV_PERIODIC_ENABLE 2413#if EV_PERIODIC_ENABLE
1694void noinline 2414void noinline
1695ev_periodic_start (EV_P_ ev_periodic *w) 2415ev_periodic_start (EV_P_ ev_periodic *w)
1696{ 2416{
1697 if (expect_false (ev_is_active (w))) 2417 if (expect_false (ev_is_active (w)))
1698 return; 2418 return;
1699 2419
1700 if (w->reschedule_cb) 2420 if (w->reschedule_cb)
1701 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2421 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1702 else if (w->interval) 2422 else if (w->interval)
1703 { 2423 {
1704 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2424 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1705 /* this formula differs from the one in periodic_reify because we do not always round up */ 2425 /* this formula differs from the one in periodic_reify because we do not always round up */
1706 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2426 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1707 } 2427 }
1708 else 2428 else
1709 ((WT)w)->at = w->offset; 2429 ev_at (w) = w->offset;
1710 2430
2431 EV_FREQUENT_CHECK;
2432
2433 ++periodiccnt;
1711 ev_start (EV_A_ (W)w, ++periodiccnt); 2434 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1712 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 2435 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1713 periodics [periodiccnt - 1] = w; 2436 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1714 upheap ((WT *)periodics, periodiccnt - 1); 2437 ANHE_at_cache (periodics [ev_active (w)]);
2438 upheap (periodics, ev_active (w));
1715 2439
2440 EV_FREQUENT_CHECK;
2441
1716 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2442 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1717} 2443}
1718 2444
1719void noinline 2445void noinline
1720ev_periodic_stop (EV_P_ ev_periodic *w) 2446ev_periodic_stop (EV_P_ ev_periodic *w)
1721{ 2447{
1722 clear_pending (EV_A_ (W)w); 2448 clear_pending (EV_A_ (W)w);
1723 if (expect_false (!ev_is_active (w))) 2449 if (expect_false (!ev_is_active (w)))
1724 return; 2450 return;
1725 2451
1726 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 2452 EV_FREQUENT_CHECK;
1727 2453
1728 { 2454 {
1729 int active = ((W)w)->active; 2455 int active = ev_active (w);
1730 2456
2457 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2458
2459 --periodiccnt;
2460
1731 if (expect_true (--active < --periodiccnt)) 2461 if (expect_true (active < periodiccnt + HEAP0))
1732 { 2462 {
1733 periodics [active] = periodics [periodiccnt]; 2463 periodics [active] = periodics [periodiccnt + HEAP0];
1734 adjustheap ((WT *)periodics, periodiccnt, active); 2464 adjustheap (periodics, periodiccnt, active);
1735 } 2465 }
1736 } 2466 }
2467
2468 EV_FREQUENT_CHECK;
1737 2469
1738 ev_stop (EV_A_ (W)w); 2470 ev_stop (EV_A_ (W)w);
1739} 2471}
1740 2472
1741void noinline 2473void noinline
… …
1753 2485
1754void noinline 2486void noinline
1755ev_signal_start (EV_P_ ev_signal *w) 2487ev_signal_start (EV_P_ ev_signal *w)
1756{ 2488{
1757#if EV_MULTIPLICITY 2489#if EV_MULTIPLICITY
1758 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2490 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1759#endif 2491#endif
1760 if (expect_false (ev_is_active (w))) 2492 if (expect_false (ev_is_active (w)))
1761 return; 2493 return;
1762 2494
1763 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2495 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2496
2497 evpipe_init (EV_A);
2498
2499 EV_FREQUENT_CHECK;
2500
2501 {
2502#ifndef _WIN32
2503 sigset_t full, prev;
2504 sigfillset (&full);
2505 sigprocmask (SIG_SETMASK, &full, &prev);
2506#endif
2507
2508 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2509
2510#ifndef _WIN32
2511 sigprocmask (SIG_SETMASK, &prev, 0);
2512#endif
2513 }
1764 2514
1765 ev_start (EV_A_ (W)w, 1); 2515 ev_start (EV_A_ (W)w, 1);
1766 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1767 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 2516 wlist_add (&signals [w->signum - 1].head, (WL)w);
1768 2517
1769 if (!((WL)w)->next) 2518 if (!((WL)w)->next)
1770 { 2519 {
1771#if _WIN32 2520#if _WIN32
1772 signal (w->signum, sighandler); 2521 signal (w->signum, ev_sighandler);
1773#else 2522#else
1774 struct sigaction sa; 2523 struct sigaction sa;
1775 sa.sa_handler = sighandler; 2524 sa.sa_handler = ev_sighandler;
1776 sigfillset (&sa.sa_mask); 2525 sigfillset (&sa.sa_mask);
1777 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2526 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1778 sigaction (w->signum, &sa, 0); 2527 sigaction (w->signum, &sa, 0);
1779#endif 2528#endif
1780 } 2529 }
2530
2531 EV_FREQUENT_CHECK;
1781} 2532}
1782 2533
1783void noinline 2534void noinline
1784ev_signal_stop (EV_P_ ev_signal *w) 2535ev_signal_stop (EV_P_ ev_signal *w)
1785{ 2536{
1786 clear_pending (EV_A_ (W)w); 2537 clear_pending (EV_A_ (W)w);
1787 if (expect_false (!ev_is_active (w))) 2538 if (expect_false (!ev_is_active (w)))
1788 return; 2539 return;
1789 2540
2541 EV_FREQUENT_CHECK;
2542
1790 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 2543 wlist_del (&signals [w->signum - 1].head, (WL)w);
1791 ev_stop (EV_A_ (W)w); 2544 ev_stop (EV_A_ (W)w);
1792 2545
1793 if (!signals [w->signum - 1].head) 2546 if (!signals [w->signum - 1].head)
1794 signal (w->signum, SIG_DFL); 2547 signal (w->signum, SIG_DFL);
2548
2549 EV_FREQUENT_CHECK;
1795} 2550}
1796 2551
1797void 2552void
1798ev_child_start (EV_P_ ev_child *w) 2553ev_child_start (EV_P_ ev_child *w)
1799{ 2554{
1800#if EV_MULTIPLICITY 2555#if EV_MULTIPLICITY
1801 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2556 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1802#endif 2557#endif
1803 if (expect_false (ev_is_active (w))) 2558 if (expect_false (ev_is_active (w)))
1804 return; 2559 return;
1805 2560
2561 EV_FREQUENT_CHECK;
2562
1806 ev_start (EV_A_ (W)w, 1); 2563 ev_start (EV_A_ (W)w, 1);
1807 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2564 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2565
2566 EV_FREQUENT_CHECK;
1808} 2567}
1809 2568
1810void 2569void
1811ev_child_stop (EV_P_ ev_child *w) 2570ev_child_stop (EV_P_ ev_child *w)
1812{ 2571{
1813 clear_pending (EV_A_ (W)w); 2572 clear_pending (EV_A_ (W)w);
1814 if (expect_false (!ev_is_active (w))) 2573 if (expect_false (!ev_is_active (w)))
1815 return; 2574 return;
1816 2575
2576 EV_FREQUENT_CHECK;
2577
1817 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2578 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818 ev_stop (EV_A_ (W)w); 2579 ev_stop (EV_A_ (W)w);
2580
2581 EV_FREQUENT_CHECK;
1819} 2582}
1820 2583
1821#if EV_STAT_ENABLE 2584#if EV_STAT_ENABLE
1822 2585
1823# ifdef _WIN32 2586# ifdef _WIN32
1824# undef lstat 2587# undef lstat
1825# define lstat(a,b) _stati64 (a,b) 2588# define lstat(a,b) _stati64 (a,b)
1826# endif 2589# endif
1827 2590
1828#define DEF_STAT_INTERVAL 5.0074891 2591#define DEF_STAT_INTERVAL 5.0074891
2592#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
1829#define MIN_STAT_INTERVAL 0.1074891 2593#define MIN_STAT_INTERVAL 0.1074891
1830 2594
1831static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2595static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1832 2596
1833#if EV_USE_INOTIFY 2597#if EV_USE_INOTIFY
1834# define EV_INOTIFY_BUFSIZE 8192 2598# define EV_INOTIFY_BUFSIZE 8192
… …
1838{ 2602{
1839 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); 2603 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);
1840 2604
1841 if (w->wd < 0) 2605 if (w->wd < 0)
1842 { 2606 {
2607 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
1843 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2608 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1844 2609
1845 /* monitor some parent directory for speedup hints */ 2610 /* monitor some parent directory for speedup hints */
2611 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2612 /* but an efficiency issue only */
1846 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2613 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1847 { 2614 {
1848 char path [4096]; 2615 char path [4096];
1849 strcpy (path, w->path); 2616 strcpy (path, w->path);
1850 2617
… …
1853 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2620 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1854 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2621 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1855 2622
1856 char *pend = strrchr (path, '/'); 2623 char *pend = strrchr (path, '/');
1857 2624
1858 if (!pend) 2625 if (!pend || pend == path)
1859 break; /* whoops, no '/', complain to your admin */ 2626 break;
1860 2627
1861 *pend = 0; 2628 *pend = 0;
1862 w->wd = inotify_add_watch (fs_fd, path, mask); 2629 w->wd = inotify_add_watch (fs_fd, path, mask);
1863 } 2630 }
1864 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2631 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1865 } 2632 }
1866 } 2633 }
1867 else
1868 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1869 2634
1870 if (w->wd >= 0) 2635 if (w->wd >= 0)
2636 {
1871 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2637 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2638
2639 /* now local changes will be tracked by inotify, but remote changes won't */
2640 /* unless the filesystem it known to be local, we therefore still poll */
2641 /* also do poll on <2.6.25, but with normal frequency */
2642 struct statfs sfs;
2643
2644 if (fs_2625 && !statfs (w->path, &sfs))
2645 if (sfs.f_type == 0x1373 /* devfs */
2646 || sfs.f_type == 0xEF53 /* ext2/3 */
2647 || sfs.f_type == 0x3153464a /* jfs */
2648 || sfs.f_type == 0x52654973 /* reiser3 */
2649 || sfs.f_type == 0x01021994 /* tempfs */
2650 || sfs.f_type == 0x58465342 /* xfs */)
2651 return;
2652
2653 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2654 ev_timer_again (EV_A_ &w->timer);
2655 }
1872} 2656}
1873 2657
1874static void noinline 2658static void noinline
1875infy_del (EV_P_ ev_stat *w) 2659infy_del (EV_P_ ev_stat *w)
1876{ 2660{
… …
1890 2674
1891static void noinline 2675static void noinline
1892infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2676infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1893{ 2677{
1894 if (slot < 0) 2678 if (slot < 0)
1895 /* overflow, need to check for all hahs slots */ 2679 /* overflow, need to check for all hash slots */
1896 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2680 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1897 infy_wd (EV_A_ slot, wd, ev); 2681 infy_wd (EV_A_ slot, wd, ev);
1898 else 2682 else
1899 { 2683 {
1900 WL w_; 2684 WL w_;
… …
1906 2690
1907 if (w->wd == wd || wd == -1) 2691 if (w->wd == wd || wd == -1)
1908 { 2692 {
1909 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2693 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1910 { 2694 {
2695 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1911 w->wd = -1; 2696 w->wd = -1;
1912 infy_add (EV_A_ w); /* re-add, no matter what */ 2697 infy_add (EV_A_ w); /* re-add, no matter what */
1913 } 2698 }
1914 2699
1915 stat_timer_cb (EV_A_ &w->timer, 0); 2700 stat_timer_cb (EV_A_ &w->timer, 0);
… …
1928 2713
1929 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2714 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1930 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2715 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1931} 2716}
1932 2717
1933void inline_size 2718inline_size void
2719check_2625 (EV_P)
2720{
2721 /* kernels < 2.6.25 are borked
2722 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2723 */
2724 struct utsname buf;
2725 int major, minor, micro;
2726
2727 if (uname (&buf))
2728 return;
2729
2730 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2731 return;
2732
2733 if (major < 2
2734 || (major == 2 && minor < 6)
2735 || (major == 2 && minor == 6 && micro < 25))
2736 return;
2737
2738 fs_2625 = 1;
2739}
2740
2741inline_size void
1934infy_init (EV_P) 2742infy_init (EV_P)
1935{ 2743{
1936 if (fs_fd != -2) 2744 if (fs_fd != -2)
1937 return; 2745 return;
2746
2747 fs_fd = -1;
2748
2749 check_2625 (EV_A);
1938 2750
1939 fs_fd = inotify_init (); 2751 fs_fd = inotify_init ();
1940 2752
1941 if (fs_fd >= 0) 2753 if (fs_fd >= 0)
1942 { 2754 {
… …
1944 ev_set_priority (&fs_w, EV_MAXPRI); 2756 ev_set_priority (&fs_w, EV_MAXPRI);
1945 ev_io_start (EV_A_ &fs_w); 2757 ev_io_start (EV_A_ &fs_w);
1946 } 2758 }
1947} 2759}
1948 2760
1949void inline_size 2761inline_size void
1950infy_fork (EV_P) 2762infy_fork (EV_P)
1951{ 2763{
1952 int slot; 2764 int slot;
1953 2765
1954 if (fs_fd < 0) 2766 if (fs_fd < 0)
… …
1970 w->wd = -1; 2782 w->wd = -1;
1971 2783
1972 if (fs_fd >= 0) 2784 if (fs_fd >= 0)
1973 infy_add (EV_A_ w); /* re-add, no matter what */ 2785 infy_add (EV_A_ w); /* re-add, no matter what */
1974 else 2786 else
1975 ev_timer_start (EV_A_ &w->timer); 2787 ev_timer_again (EV_A_ &w->timer);
1976 } 2788 }
1977
1978 } 2789 }
1979} 2790}
1980 2791
2792#endif
2793
2794#ifdef _WIN32
2795# define EV_LSTAT(p,b) _stati64 (p, b)
2796#else
2797# define EV_LSTAT(p,b) lstat (p, b)
1981#endif 2798#endif
1982 2799
1983void 2800void
1984ev_stat_stat (EV_P_ ev_stat *w) 2801ev_stat_stat (EV_P_ ev_stat *w)
1985{ 2802{
… …
2012 || w->prev.st_atime != w->attr.st_atime 2829 || w->prev.st_atime != w->attr.st_atime
2013 || w->prev.st_mtime != w->attr.st_mtime 2830 || w->prev.st_mtime != w->attr.st_mtime
2014 || w->prev.st_ctime != w->attr.st_ctime 2831 || w->prev.st_ctime != w->attr.st_ctime
2015 ) { 2832 ) {
2016 #if EV_USE_INOTIFY 2833 #if EV_USE_INOTIFY
2834 if (fs_fd >= 0)
2835 {
2017 infy_del (EV_A_ w); 2836 infy_del (EV_A_ w);
2018 infy_add (EV_A_ w); 2837 infy_add (EV_A_ w);
2019 ev_stat_stat (EV_A_ w); /* avoid race... */ 2838 ev_stat_stat (EV_A_ w); /* avoid race... */
2839 }
2020 #endif 2840 #endif
2021 2841
2022 ev_feed_event (EV_A_ w, EV_STAT); 2842 ev_feed_event (EV_A_ w, EV_STAT);
2023 } 2843 }
2024} 2844}
… …
2027ev_stat_start (EV_P_ ev_stat *w) 2847ev_stat_start (EV_P_ ev_stat *w)
2028{ 2848{
2029 if (expect_false (ev_is_active (w))) 2849 if (expect_false (ev_is_active (w)))
2030 return; 2850 return;
2031 2851
2032 /* since we use memcmp, we need to clear any padding data etc. */
2033 memset (&w->prev, 0, sizeof (ev_statdata));
2034 memset (&w->attr, 0, sizeof (ev_statdata));
2035
2036 ev_stat_stat (EV_A_ w); 2852 ev_stat_stat (EV_A_ w);
2037 2853
2854 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2038 if (w->interval < MIN_STAT_INTERVAL) 2855 w->interval = MIN_STAT_INTERVAL;
2039 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2040 2856
2041 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 2857 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2042 ev_set_priority (&w->timer, ev_priority (w)); 2858 ev_set_priority (&w->timer, ev_priority (w));
2043 2859
2044#if EV_USE_INOTIFY 2860#if EV_USE_INOTIFY
2045 infy_init (EV_A); 2861 infy_init (EV_A);
2046 2862
2047 if (fs_fd >= 0) 2863 if (fs_fd >= 0)
2048 infy_add (EV_A_ w); 2864 infy_add (EV_A_ w);
2049 else 2865 else
2050#endif 2866#endif
2051 ev_timer_start (EV_A_ &w->timer); 2867 ev_timer_again (EV_A_ &w->timer);
2052 2868
2053 ev_start (EV_A_ (W)w, 1); 2869 ev_start (EV_A_ (W)w, 1);
2870
2871 EV_FREQUENT_CHECK;
2054} 2872}
2055 2873
2056void 2874void
2057ev_stat_stop (EV_P_ ev_stat *w) 2875ev_stat_stop (EV_P_ ev_stat *w)
2058{ 2876{
2059 clear_pending (EV_A_ (W)w); 2877 clear_pending (EV_A_ (W)w);
2060 if (expect_false (!ev_is_active (w))) 2878 if (expect_false (!ev_is_active (w)))
2061 return; 2879 return;
2062 2880
2881 EV_FREQUENT_CHECK;
2882
2063#if EV_USE_INOTIFY 2883#if EV_USE_INOTIFY
2064 infy_del (EV_A_ w); 2884 infy_del (EV_A_ w);
2065#endif 2885#endif
2066 ev_timer_stop (EV_A_ &w->timer); 2886 ev_timer_stop (EV_A_ &w->timer);
2067 2887
2068 ev_stop (EV_A_ (W)w); 2888 ev_stop (EV_A_ (W)w);
2889
2890 EV_FREQUENT_CHECK;
2069} 2891}
2070#endif 2892#endif
2071 2893
2072#if EV_IDLE_ENABLE 2894#if EV_IDLE_ENABLE
2073void 2895void
… …
2075{ 2897{
2076 if (expect_false (ev_is_active (w))) 2898 if (expect_false (ev_is_active (w)))
2077 return; 2899 return;
2078 2900
2079 pri_adjust (EV_A_ (W)w); 2901 pri_adjust (EV_A_ (W)w);
2902
2903 EV_FREQUENT_CHECK;
2080 2904
2081 { 2905 {
2082 int active = ++idlecnt [ABSPRI (w)]; 2906 int active = ++idlecnt [ABSPRI (w)];
2083 2907
2084 ++idleall; 2908 ++idleall;
2085 ev_start (EV_A_ (W)w, active); 2909 ev_start (EV_A_ (W)w, active);
2086 2910
2087 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 2911 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2088 idles [ABSPRI (w)][active - 1] = w; 2912 idles [ABSPRI (w)][active - 1] = w;
2089 } 2913 }
2914
2915 EV_FREQUENT_CHECK;
2090} 2916}
2091 2917
2092void 2918void
2093ev_idle_stop (EV_P_ ev_idle *w) 2919ev_idle_stop (EV_P_ ev_idle *w)
2094{ 2920{
2095 clear_pending (EV_A_ (W)w); 2921 clear_pending (EV_A_ (W)w);
2096 if (expect_false (!ev_is_active (w))) 2922 if (expect_false (!ev_is_active (w)))
2097 return; 2923 return;
2098 2924
2925 EV_FREQUENT_CHECK;
2926
2099 { 2927 {
2100 int active = ((W)w)->active; 2928 int active = ev_active (w);
2101 2929
2102 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 2930 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2103 ((W)idles [ABSPRI (w)][active - 1])->active = active; 2931 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2104 2932
2105 ev_stop (EV_A_ (W)w); 2933 ev_stop (EV_A_ (W)w);
2106 --idleall; 2934 --idleall;
2107 } 2935 }
2936
2937 EV_FREQUENT_CHECK;
2108} 2938}
2109#endif 2939#endif
2110 2940
2111void 2941void
2112ev_prepare_start (EV_P_ ev_prepare *w) 2942ev_prepare_start (EV_P_ ev_prepare *w)
2113{ 2943{
2114 if (expect_false (ev_is_active (w))) 2944 if (expect_false (ev_is_active (w)))
2115 return; 2945 return;
2946
2947 EV_FREQUENT_CHECK;
2116 2948
2117 ev_start (EV_A_ (W)w, ++preparecnt); 2949 ev_start (EV_A_ (W)w, ++preparecnt);
2118 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 2950 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2119 prepares [preparecnt - 1] = w; 2951 prepares [preparecnt - 1] = w;
2952
2953 EV_FREQUENT_CHECK;
2120} 2954}
2121 2955
2122void 2956void
2123ev_prepare_stop (EV_P_ ev_prepare *w) 2957ev_prepare_stop (EV_P_ ev_prepare *w)
2124{ 2958{
2125 clear_pending (EV_A_ (W)w); 2959 clear_pending (EV_A_ (W)w);
2126 if (expect_false (!ev_is_active (w))) 2960 if (expect_false (!ev_is_active (w)))
2127 return; 2961 return;
2128 2962
2963 EV_FREQUENT_CHECK;
2964
2129 { 2965 {
2130 int active = ((W)w)->active; 2966 int active = ev_active (w);
2967
2131 prepares [active - 1] = prepares [--preparecnt]; 2968 prepares [active - 1] = prepares [--preparecnt];
2132 ((W)prepares [active - 1])->active = active; 2969 ev_active (prepares [active - 1]) = active;
2133 } 2970 }
2134 2971
2135 ev_stop (EV_A_ (W)w); 2972 ev_stop (EV_A_ (W)w);
2973
2974 EV_FREQUENT_CHECK;
2136} 2975}
2137 2976
2138void 2977void
2139ev_check_start (EV_P_ ev_check *w) 2978ev_check_start (EV_P_ ev_check *w)
2140{ 2979{
2141 if (expect_false (ev_is_active (w))) 2980 if (expect_false (ev_is_active (w)))
2142 return; 2981 return;
2982
2983 EV_FREQUENT_CHECK;
2143 2984
2144 ev_start (EV_A_ (W)w, ++checkcnt); 2985 ev_start (EV_A_ (W)w, ++checkcnt);
2145 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 2986 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2146 checks [checkcnt - 1] = w; 2987 checks [checkcnt - 1] = w;
2988
2989 EV_FREQUENT_CHECK;
2147} 2990}
2148 2991
2149void 2992void
2150ev_check_stop (EV_P_ ev_check *w) 2993ev_check_stop (EV_P_ ev_check *w)
2151{ 2994{
2152 clear_pending (EV_A_ (W)w); 2995 clear_pending (EV_A_ (W)w);
2153 if (expect_false (!ev_is_active (w))) 2996 if (expect_false (!ev_is_active (w)))
2154 return; 2997 return;
2155 2998
2999 EV_FREQUENT_CHECK;
3000
2156 { 3001 {
2157 int active = ((W)w)->active; 3002 int active = ev_active (w);
3003
2158 checks [active - 1] = checks [--checkcnt]; 3004 checks [active - 1] = checks [--checkcnt];
2159 ((W)checks [active - 1])->active = active; 3005 ev_active (checks [active - 1]) = active;
2160 } 3006 }
2161 3007
2162 ev_stop (EV_A_ (W)w); 3008 ev_stop (EV_A_ (W)w);
3009
3010 EV_FREQUENT_CHECK;
2163} 3011}
2164 3012
2165#if EV_EMBED_ENABLE 3013#if EV_EMBED_ENABLE
2166void noinline 3014void noinline
2167ev_embed_sweep (EV_P_ ev_embed *w) 3015ev_embed_sweep (EV_P_ ev_embed *w)
2168{ 3016{
2169 ev_loop (w->loop, EVLOOP_NONBLOCK); 3017 ev_loop (w->other, EVLOOP_NONBLOCK);
2170} 3018}
2171 3019
2172static void 3020static void
2173embed_cb (EV_P_ ev_io *io, int revents) 3021embed_io_cb (EV_P_ ev_io *io, int revents)
2174{ 3022{
2175 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3023 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2176 3024
2177 if (ev_cb (w)) 3025 if (ev_cb (w))
2178 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3026 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179 else 3027 else
2180 ev_embed_sweep (loop, w); 3028 ev_loop (w->other, EVLOOP_NONBLOCK);
2181} 3029}
3030
3031static void
3032embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3033{
3034 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3035
3036 {
3037 struct ev_loop *loop = w->other;
3038
3039 while (fdchangecnt)
3040 {
3041 fd_reify (EV_A);
3042 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3043 }
3044 }
3045}
3046
3047static void
3048embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3049{
3050 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3051
3052 ev_embed_stop (EV_A_ w);
3053
3054 {
3055 struct ev_loop *loop = w->other;
3056
3057 ev_loop_fork (EV_A);
3058 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3059 }
3060
3061 ev_embed_start (EV_A_ w);
3062}
3063
3064#if 0
3065static void
3066embed_idle_cb (EV_P_ ev_idle *idle, int revents)
3067{
3068 ev_idle_stop (EV_A_ idle);
3069}
3070#endif
2182 3071
2183void 3072void
2184ev_embed_start (EV_P_ ev_embed *w) 3073ev_embed_start (EV_P_ ev_embed *w)
2185{ 3074{
2186 if (expect_false (ev_is_active (w))) 3075 if (expect_false (ev_is_active (w)))
2187 return; 3076 return;
2188 3077
2189 { 3078 {
2190 struct ev_loop *loop = w->loop; 3079 struct ev_loop *loop = w->other;
2191 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3080 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 3081 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193 } 3082 }
3083
3084 EV_FREQUENT_CHECK;
2194 3085
2195 ev_set_priority (&w->io, ev_priority (w)); 3086 ev_set_priority (&w->io, ev_priority (w));
2196 ev_io_start (EV_A_ &w->io); 3087 ev_io_start (EV_A_ &w->io);
2197 3088
3089 ev_prepare_init (&w->prepare, embed_prepare_cb);
3090 ev_set_priority (&w->prepare, EV_MINPRI);
3091 ev_prepare_start (EV_A_ &w->prepare);
3092
3093 ev_fork_init (&w->fork, embed_fork_cb);
3094 ev_fork_start (EV_A_ &w->fork);
3095
3096 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
3097
2198 ev_start (EV_A_ (W)w, 1); 3098 ev_start (EV_A_ (W)w, 1);
3099
3100 EV_FREQUENT_CHECK;
2199} 3101}
2200 3102
2201void 3103void
2202ev_embed_stop (EV_P_ ev_embed *w) 3104ev_embed_stop (EV_P_ ev_embed *w)
2203{ 3105{
2204 clear_pending (EV_A_ (W)w); 3106 clear_pending (EV_A_ (W)w);
2205 if (expect_false (!ev_is_active (w))) 3107 if (expect_false (!ev_is_active (w)))
2206 return; 3108 return;
2207 3109
3110 EV_FREQUENT_CHECK;
3111
2208 ev_io_stop (EV_A_ &w->io); 3112 ev_io_stop (EV_A_ &w->io);
3113 ev_prepare_stop (EV_A_ &w->prepare);
3114 ev_fork_stop (EV_A_ &w->fork);
2209 3115
2210 ev_stop (EV_A_ (W)w); 3116 EV_FREQUENT_CHECK;
2211} 3117}
2212#endif 3118#endif
2213 3119
2214#if EV_FORK_ENABLE 3120#if EV_FORK_ENABLE
2215void 3121void
2216ev_fork_start (EV_P_ ev_fork *w) 3122ev_fork_start (EV_P_ ev_fork *w)
2217{ 3123{
2218 if (expect_false (ev_is_active (w))) 3124 if (expect_false (ev_is_active (w)))
2219 return; 3125 return;
3126
3127 EV_FREQUENT_CHECK;
2220 3128
2221 ev_start (EV_A_ (W)w, ++forkcnt); 3129 ev_start (EV_A_ (W)w, ++forkcnt);
2222 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3130 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2223 forks [forkcnt - 1] = w; 3131 forks [forkcnt - 1] = w;
3132
3133 EV_FREQUENT_CHECK;
2224} 3134}
2225 3135
2226void 3136void
2227ev_fork_stop (EV_P_ ev_fork *w) 3137ev_fork_stop (EV_P_ ev_fork *w)
2228{ 3138{
2229 clear_pending (EV_A_ (W)w); 3139 clear_pending (EV_A_ (W)w);
2230 if (expect_false (!ev_is_active (w))) 3140 if (expect_false (!ev_is_active (w)))
2231 return; 3141 return;
2232 3142
3143 EV_FREQUENT_CHECK;
3144
2233 { 3145 {
2234 int active = ((W)w)->active; 3146 int active = ev_active (w);
3147
2235 forks [active - 1] = forks [--forkcnt]; 3148 forks [active - 1] = forks [--forkcnt];
2236 ((W)forks [active - 1])->active = active; 3149 ev_active (forks [active - 1]) = active;
2237 } 3150 }
2238 3151
2239 ev_stop (EV_A_ (W)w); 3152 ev_stop (EV_A_ (W)w);
3153
3154 EV_FREQUENT_CHECK;
3155}
3156#endif
3157
3158#if EV_ASYNC_ENABLE
3159void
3160ev_async_start (EV_P_ ev_async *w)
3161{
3162 if (expect_false (ev_is_active (w)))
3163 return;
3164
3165 evpipe_init (EV_A);
3166
3167 EV_FREQUENT_CHECK;
3168
3169 ev_start (EV_A_ (W)w, ++asynccnt);
3170 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
3171 asyncs [asynccnt - 1] = w;
3172
3173 EV_FREQUENT_CHECK;
3174}
3175
3176void
3177ev_async_stop (EV_P_ ev_async *w)
3178{
3179 clear_pending (EV_A_ (W)w);
3180 if (expect_false (!ev_is_active (w)))
3181 return;
3182
3183 EV_FREQUENT_CHECK;
3184
3185 {
3186 int active = ev_active (w);
3187
3188 asyncs [active - 1] = asyncs [--asynccnt];
3189 ev_active (asyncs [active - 1]) = active;
3190 }
3191
3192 ev_stop (EV_A_ (W)w);
3193
3194 EV_FREQUENT_CHECK;
3195}
3196
3197void
3198ev_async_send (EV_P_ ev_async *w)
3199{
3200 w->sent = 1;
3201 evpipe_write (EV_A_ &gotasync);
2240} 3202}
2241#endif 3203#endif
2242 3204
2243/*****************************************************************************/ 3205/*****************************************************************************/
2244 3206
… …
2254once_cb (EV_P_ struct ev_once *once, int revents) 3216once_cb (EV_P_ struct ev_once *once, int revents)
2255{ 3217{
2256 void (*cb)(int revents, void *arg) = once->cb; 3218 void (*cb)(int revents, void *arg) = once->cb;
2257 void *arg = once->arg; 3219 void *arg = once->arg;
2258 3220
2259 ev_io_stop (EV_A_ &once->io); 3221 ev_io_stop (EV_A_ &once->io);
2260 ev_timer_stop (EV_A_ &once->to); 3222 ev_timer_stop (EV_A_ &once->to);
2261 ev_free (once); 3223 ev_free (once);
2262 3224
2263 cb (revents, arg); 3225 cb (revents, arg);
2264} 3226}
2265 3227
2266static void 3228static void
2267once_cb_io (EV_P_ ev_io *w, int revents) 3229once_cb_io (EV_P_ ev_io *w, int revents)
2268{ 3230{
2269 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3231 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3232
3233 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2270} 3234}
2271 3235
2272static void 3236static void
2273once_cb_to (EV_P_ ev_timer *w, int revents) 3237once_cb_to (EV_P_ ev_timer *w, int revents)
2274{ 3238{
2275 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3239 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3240
3241 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2276} 3242}
2277 3243
2278void 3244void
2279ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3245ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2280{ 3246{
… …
2302 ev_timer_set (&once->to, timeout, 0.); 3268 ev_timer_set (&once->to, timeout, 0.);
2303 ev_timer_start (EV_A_ &once->to); 3269 ev_timer_start (EV_A_ &once->to);
2304 } 3270 }
2305} 3271}
2306 3272
3273/*****************************************************************************/
3274
3275#if EV_WALK_ENABLE
3276void
3277ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3278{
3279 int i, j;
3280 ev_watcher_list *wl, *wn;
3281
3282 if (types & (EV_IO | EV_EMBED))
3283 for (i = 0; i < anfdmax; ++i)
3284 for (wl = anfds [i].head; wl; )
3285 {
3286 wn = wl->next;
3287
3288#if EV_EMBED_ENABLE
3289 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3290 {
3291 if (types & EV_EMBED)
3292 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3293 }
3294 else
3295#endif
3296#if EV_USE_INOTIFY
3297 if (ev_cb ((ev_io *)wl) == infy_cb)
3298 ;
3299 else
3300#endif
3301 if ((ev_io *)wl != &pipe_w)
3302 if (types & EV_IO)
3303 cb (EV_A_ EV_IO, wl);
3304
3305 wl = wn;
3306 }
3307
3308 if (types & (EV_TIMER | EV_STAT))
3309 for (i = timercnt + HEAP0; i-- > HEAP0; )
3310#if EV_STAT_ENABLE
3311 /*TODO: timer is not always active*/
3312 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3313 {
3314 if (types & EV_STAT)
3315 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3316 }
3317 else
3318#endif
3319 if (types & EV_TIMER)
3320 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3321
3322#if EV_PERIODIC_ENABLE
3323 if (types & EV_PERIODIC)
3324 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3325 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3326#endif
3327
3328#if EV_IDLE_ENABLE
3329 if (types & EV_IDLE)
3330 for (j = NUMPRI; i--; )
3331 for (i = idlecnt [j]; i--; )
3332 cb (EV_A_ EV_IDLE, idles [j][i]);
3333#endif
3334
3335#if EV_FORK_ENABLE
3336 if (types & EV_FORK)
3337 for (i = forkcnt; i--; )
3338 if (ev_cb (forks [i]) != embed_fork_cb)
3339 cb (EV_A_ EV_FORK, forks [i]);
3340#endif
3341
3342#if EV_ASYNC_ENABLE
3343 if (types & EV_ASYNC)
3344 for (i = asynccnt; i--; )
3345 cb (EV_A_ EV_ASYNC, asyncs [i]);
3346#endif
3347
3348 if (types & EV_PREPARE)
3349 for (i = preparecnt; i--; )
3350#if EV_EMBED_ENABLE
3351 if (ev_cb (prepares [i]) != embed_prepare_cb)
3352#endif
3353 cb (EV_A_ EV_PREPARE, prepares [i]);
3354
3355 if (types & EV_CHECK)
3356 for (i = checkcnt; i--; )
3357 cb (EV_A_ EV_CHECK, checks [i]);
3358
3359 if (types & EV_SIGNAL)
3360 for (i = 0; i < signalmax; ++i)
3361 for (wl = signals [i].head; wl; )
3362 {
3363 wn = wl->next;
3364 cb (EV_A_ EV_SIGNAL, wl);
3365 wl = wn;
3366 }
3367
3368 if (types & EV_CHILD)
3369 for (i = EV_PID_HASHSIZE; i--; )
3370 for (wl = childs [i]; wl; )
3371 {
3372 wn = wl->next;
3373 cb (EV_A_ EV_CHILD, wl);
3374 wl = wn;
3375 }
3376/* EV_STAT 0x00001000 /* stat data changed */
3377/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3378}
3379#endif
3380
3381#if EV_MULTIPLICITY
3382 #include "ev_wrap.h"
3383#endif
3384
2307#ifdef __cplusplus 3385#ifdef __cplusplus
2308} 3386}
2309#endif 3387#endif
2310 3388

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