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Comparing libev/ev.c (file contents):
Revision 1.363 by root, Sun Oct 24 19:38:20 2010 UTC vs.
Revision 1.464 by root, Fri Mar 21 16:41:04 2014 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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 modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 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- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 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- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
53
48# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
49# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
50# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
51# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
52# define EV_USE_REALTIME 0 58# define EV_USE_REALTIME 0
53# endif 59# endif
54# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
55# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
56# endif 62# endif
57# endif 63# endif
58# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
59# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
60# endif 66# endif
61 67
62# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
63# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
156# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
157# endif 163# endif
158 164
159#endif 165#endif
160 166
161#include <math.h>
162#include <stdlib.h> 167#include <stdlib.h>
163#include <string.h> 168#include <string.h>
164#include <fcntl.h> 169#include <fcntl.h>
165#include <stddef.h> 170#include <stddef.h>
166 171
… …
178# include EV_H 183# include EV_H
179#else 184#else
180# include "ev.h" 185# include "ev.h"
181#endif 186#endif
182 187
183EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
184 198
185#ifndef _WIN32 199#ifndef _WIN32
186# include <sys/time.h> 200# include <sys/time.h>
187# include <sys/wait.h> 201# include <sys/wait.h>
188# include <unistd.h> 202# include <unistd.h>
189#else 203#else
190# include <io.h> 204# include <io.h>
191# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
192# include <windows.h> 207# include <windows.h>
193# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
194# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
195# endif 210# endif
196# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
205#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
206 221
207/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
208 223
209/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG) 225#if defined EV_NSIG
211/* use what's provided */ 226/* use what's provided */
212#elif defined (NSIG) 227#elif defined NSIG
213# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
214#elif defined(_NSIG) 229#elif defined _NSIG
215# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX) 231#elif defined SIGMAX
217# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX) 233#elif defined SIG_MAX
219# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
221# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG) 237#elif defined MAXSIG
223# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG) 239#elif defined MAX_SIG
225# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig) 243#elif defined _sys_nsig
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else 245#else
231# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
232/* to make it compile regardless, just remove the above line, */ 247#endif
233/* but consider reporting it, too! :) */ 248
234# define EV_NSIG 65 249#ifndef EV_USE_FLOOR
250# define EV_USE_FLOOR 0
235#endif 251#endif
236 252
237#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
238# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240# else 256# else
241# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
242# endif 258# endif
243#endif 259#endif
244 260
245#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
247# define EV_USE_MONOTONIC EV_FEATURE_OS 263# define EV_USE_MONOTONIC EV_FEATURE_OS
248# else 264# else
249# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
250# endif 266# endif
251#endif 267#endif
… …
338 354
339#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
341#endif 357#endif
342 358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
344/* which makes programs even slower. might work on other unices, too. */ 376/* which makes programs even slower. might work on other unices, too. */
345#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
346# include <syscall.h> 378# include <sys/syscall.h>
347# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
348# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
349# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
351# else 383# else
… …
354# endif 386# endif
355#endif 387#endif
356 388
357/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
358 390
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
365#ifndef CLOCK_MONOTONIC 391#ifndef CLOCK_MONOTONIC
366# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
367# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
368#endif 394#endif
369 395
… …
376# undef EV_USE_INOTIFY 402# undef EV_USE_INOTIFY
377# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
378#endif 404#endif
379 405
380#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
381# ifndef _WIN32 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux
382# include <sys/select.h> 409# include <sys/select.h>
383# endif 410# endif
384#endif 411#endif
385 412
386#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
… …
389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
390# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
391# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
392# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
393# endif 420# endif
394#endif
395
396#if EV_SELECT_IS_WINSOCKET
397# include <winsock.h>
398#endif 421#endif
399 422
400#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
402# include <stdint.h> 425# include <stdint.h>
… …
442#else 465#else
443# define EV_FREQUENT_CHECK do { } while (0) 466# define EV_FREQUENT_CHECK do { } while (0)
444#endif 467#endif
445 468
446/* 469/*
447 * This is used to avoid floating point rounding problems. 470 * This is used to work around floating point rounding problems.
448 * It is added to ev_rt_now when scheduling periodics
449 * to ensure progress, time-wise, even when rounding
450 * errors are against us.
451 * This value is good at least till the year 4000. 471 * This value is good at least till the year 4000.
452 * Better solutions welcome.
453 */ 472 */
454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
455 475
456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 476#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
458 478
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
461 481
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */
484/*
485 * libecb - http://software.schmorp.de/pkg/libecb
486 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved.
490 *
491 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met:
493 *
494 * 1. Redistributions of source code must retain the above copyright notice,
495 * this list of conditions and the following disclaimer.
496 *
497 * 2. Redistributions in binary form must reproduce the above copyright
498 * notice, this list of conditions and the following disclaimer in the
499 * documentation and/or other materials provided with the distribution.
500 *
501 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
502 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
503 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
504 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
505 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE.
511 */
512
513#ifndef ECB_H
514#define ECB_H
515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
519#ifdef _WIN32
520 typedef signed char int8_t;
521 typedef unsigned char uint8_t;
522 typedef signed short int16_t;
523 typedef unsigned short uint16_t;
524 typedef signed int int32_t;
525 typedef unsigned int uint32_t;
462#if __GNUC__ >= 4 526 #if __GNUC__
463# define expect(expr,value) __builtin_expect ((expr),(value)) 527 typedef signed long long int64_t;
464# define noinline __attribute__ ((noinline)) 528 typedef unsigned long long uint64_t;
529 #else /* _MSC_VER || __BORLANDC__ */
530 typedef signed __int64 int64_t;
531 typedef unsigned __int64 uint64_t;
532 #endif
533 #ifdef _WIN64
534 #define ECB_PTRSIZE 8
535 typedef uint64_t uintptr_t;
536 typedef int64_t intptr_t;
537 #else
538 #define ECB_PTRSIZE 4
539 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t;
541 #endif
465#else 542#else
466# define expect(expr,value) (expr) 543 #include <inttypes.h>
467# define noinline 544 #if UINTMAX_MAX > 0xffffffffU
468# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 545 #define ECB_PTRSIZE 8
469# define inline 546 #else
547 #define ECB_PTRSIZE 4
548 #endif
470# endif 549#endif
550
551/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
553 #if _ILP32
554 #define ECB_AMD64_X32 1
555 #else
556 #define ECB_AMD64 1
471#endif 557 #endif
558#endif
472 559
560/* many compilers define _GNUC_ to some versions but then only implement
561 * what their idiot authors think are the "more important" extensions,
562 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place.
566 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0
570 #else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif
573#endif
574
575#define ECB_CPP (__cplusplus+0)
576#define ECB_CPP11 (__cplusplus >= 201103L)
577
578#if ECB_CPP
579 #define ECB_C 0
580 #define ECB_STDC_VERSION 0
581#else
582 #define ECB_C 1
583 #define ECB_STDC_VERSION __STDC_VERSION__
584#endif
585
586#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
587#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
588
589#if ECB_CPP
590 #define ECB_EXTERN_C extern "C"
591 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
592 #define ECB_EXTERN_C_END }
593#else
594 #define ECB_EXTERN_C extern
595 #define ECB_EXTERN_C_BEG
596 #define ECB_EXTERN_C_END
597#endif
598
599/*****************************************************************************/
600
601/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
602/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
603
604#if ECB_NO_THREADS
605 #define ECB_NO_SMP 1
606#endif
607
608#if ECB_NO_SMP
609 #define ECB_MEMORY_FENCE do { } while (0)
610#endif
611
612#ifndef ECB_MEMORY_FENCE
613 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
614 #if __i386 || __i386__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
616 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
617 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
618 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
619 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
620 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
621 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
622 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
625 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
627 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
628 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
629 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
630 #elif __aarch64__
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
632 #elif (__sparc || __sparc__) && !__sparcv8
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
634 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
635 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
636 #elif defined __s390__ || defined __s390x__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
638 #elif defined __mips__
639 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
640 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
642 #elif defined __alpha__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
644 #elif defined __hppa__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
647 #elif defined __ia64__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
649 #elif defined __m68k__
650 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
651 #elif defined __m88k__
652 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
653 #elif defined __sh__
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
655 #endif
656 #endif
657#endif
658
659#ifndef ECB_MEMORY_FENCE
660 #if ECB_GCC_VERSION(4,7)
661 /* see comment below (stdatomic.h) about the C11 memory model. */
662 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
663 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
664 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
665
666 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
667 * without risking compile time errors with other compilers. We *could*
668 * define our own ecb_clang_has_feature, but I just can't be bothered to work
669 * around this shit time and again.
670 * #elif defined __clang && __has_feature (cxx_atomic)
671 * // see comment below (stdatomic.h) about the C11 memory model.
672 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
673 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
674 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
675 */
676
677 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
678 #define ECB_MEMORY_FENCE __sync_synchronize ()
679 #elif _MSC_VER >= 1500 /* VC++ 2008 */
680 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
681 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
682 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
683 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
684 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
685 #elif _MSC_VER >= 1400 /* VC++ 2005 */
686 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
687 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
688 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
689 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
690 #elif defined _WIN32
691 #include <WinNT.h>
692 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
693 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
694 #include <mbarrier.h>
695 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
696 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
697 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
698 #elif __xlC__
699 #define ECB_MEMORY_FENCE __sync ()
700 #endif
701#endif
702
703#ifndef ECB_MEMORY_FENCE
704 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
705 /* we assume that these memory fences work on all variables/all memory accesses, */
706 /* not just C11 atomics and atomic accesses */
707 #include <stdatomic.h>
708 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
709 /* any fence other than seq_cst, which isn't very efficient for us. */
710 /* Why that is, we don't know - either the C11 memory model is quite useless */
711 /* for most usages, or gcc and clang have a bug */
712 /* I *currently* lean towards the latter, and inefficiently implement */
713 /* all three of ecb's fences as a seq_cst fence */
714 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
715 /* for all __atomic_thread_fence's except seq_cst */
716 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
717 #endif
718#endif
719
720#ifndef ECB_MEMORY_FENCE
721 #if !ECB_AVOID_PTHREADS
722 /*
723 * if you get undefined symbol references to pthread_mutex_lock,
724 * or failure to find pthread.h, then you should implement
725 * the ECB_MEMORY_FENCE operations for your cpu/compiler
726 * OR provide pthread.h and link against the posix thread library
727 * of your system.
728 */
729 #include <pthread.h>
730 #define ECB_NEEDS_PTHREADS 1
731 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
732
733 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
734 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
735 #endif
736#endif
737
738#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
739 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
740#endif
741
742#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
743 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
744#endif
745
746/*****************************************************************************/
747
748#if __cplusplus
749 #define ecb_inline static inline
750#elif ECB_GCC_VERSION(2,5)
751 #define ecb_inline static __inline__
752#elif ECB_C99
753 #define ecb_inline static inline
754#else
755 #define ecb_inline static
756#endif
757
758#if ECB_GCC_VERSION(3,3)
759 #define ecb_restrict __restrict__
760#elif ECB_C99
761 #define ecb_restrict restrict
762#else
763 #define ecb_restrict
764#endif
765
766typedef int ecb_bool;
767
768#define ECB_CONCAT_(a, b) a ## b
769#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
770#define ECB_STRINGIFY_(a) # a
771#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
772
773#define ecb_function_ ecb_inline
774
775#if ECB_GCC_VERSION(3,1)
776 #define ecb_attribute(attrlist) __attribute__(attrlist)
777 #define ecb_is_constant(expr) __builtin_constant_p (expr)
778 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
779 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
780#else
781 #define ecb_attribute(attrlist)
782
783 /* possible C11 impl for integral types
784 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
785 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
786
787 #define ecb_is_constant(expr) 0
788 #define ecb_expect(expr,value) (expr)
789 #define ecb_prefetch(addr,rw,locality)
790#endif
791
792/* no emulation for ecb_decltype */
793#if ECB_GCC_VERSION(4,5)
794 #define ecb_decltype(x) __decltype(x)
795#elif ECB_GCC_VERSION(3,0)
796 #define ecb_decltype(x) __typeof(x)
797#endif
798
799#define ecb_noinline ecb_attribute ((__noinline__))
800#define ecb_unused ecb_attribute ((__unused__))
801#define ecb_const ecb_attribute ((__const__))
802#define ecb_pure ecb_attribute ((__pure__))
803
804#if ECB_C11
805 #define ecb_noreturn _Noreturn
806#else
807 #define ecb_noreturn ecb_attribute ((__noreturn__))
808#endif
809
810#if ECB_GCC_VERSION(4,3)
811 #define ecb_artificial ecb_attribute ((__artificial__))
812 #define ecb_hot ecb_attribute ((__hot__))
813 #define ecb_cold ecb_attribute ((__cold__))
814#else
815 #define ecb_artificial
816 #define ecb_hot
817 #define ecb_cold
818#endif
819
820/* put around conditional expressions if you are very sure that the */
821/* expression is mostly true or mostly false. note that these return */
822/* booleans, not the expression. */
473#define expect_false(expr) expect ((expr) != 0, 0) 823#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
474#define expect_true(expr) expect ((expr) != 0, 1) 824#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
825/* for compatibility to the rest of the world */
826#define ecb_likely(expr) ecb_expect_true (expr)
827#define ecb_unlikely(expr) ecb_expect_false (expr)
828
829/* count trailing zero bits and count # of one bits */
830#if ECB_GCC_VERSION(3,4)
831 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
832 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
833 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
834 #define ecb_ctz32(x) __builtin_ctz (x)
835 #define ecb_ctz64(x) __builtin_ctzll (x)
836 #define ecb_popcount32(x) __builtin_popcount (x)
837 /* no popcountll */
838#else
839 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
840 ecb_function_ int
841 ecb_ctz32 (uint32_t x)
842 {
843 int r = 0;
844
845 x &= ~x + 1; /* this isolates the lowest bit */
846
847#if ECB_branchless_on_i386
848 r += !!(x & 0xaaaaaaaa) << 0;
849 r += !!(x & 0xcccccccc) << 1;
850 r += !!(x & 0xf0f0f0f0) << 2;
851 r += !!(x & 0xff00ff00) << 3;
852 r += !!(x & 0xffff0000) << 4;
853#else
854 if (x & 0xaaaaaaaa) r += 1;
855 if (x & 0xcccccccc) r += 2;
856 if (x & 0xf0f0f0f0) r += 4;
857 if (x & 0xff00ff00) r += 8;
858 if (x & 0xffff0000) r += 16;
859#endif
860
861 return r;
862 }
863
864 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
865 ecb_function_ int
866 ecb_ctz64 (uint64_t x)
867 {
868 int shift = x & 0xffffffffU ? 0 : 32;
869 return ecb_ctz32 (x >> shift) + shift;
870 }
871
872 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
873 ecb_function_ int
874 ecb_popcount32 (uint32_t x)
875 {
876 x -= (x >> 1) & 0x55555555;
877 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
878 x = ((x >> 4) + x) & 0x0f0f0f0f;
879 x *= 0x01010101;
880
881 return x >> 24;
882 }
883
884 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
885 ecb_function_ int ecb_ld32 (uint32_t x)
886 {
887 int r = 0;
888
889 if (x >> 16) { x >>= 16; r += 16; }
890 if (x >> 8) { x >>= 8; r += 8; }
891 if (x >> 4) { x >>= 4; r += 4; }
892 if (x >> 2) { x >>= 2; r += 2; }
893 if (x >> 1) { r += 1; }
894
895 return r;
896 }
897
898 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
899 ecb_function_ int ecb_ld64 (uint64_t x)
900 {
901 int r = 0;
902
903 if (x >> 32) { x >>= 32; r += 32; }
904
905 return r + ecb_ld32 (x);
906 }
907#endif
908
909ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
910ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
911ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
912ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
913
914ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
915ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
916{
917 return ( (x * 0x0802U & 0x22110U)
918 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
919}
920
921ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
922ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
923{
924 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
925 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
926 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
927 x = ( x >> 8 ) | ( x << 8);
928
929 return x;
930}
931
932ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
933ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
934{
935 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
936 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
937 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
938 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
939 x = ( x >> 16 ) | ( x << 16);
940
941 return x;
942}
943
944/* popcount64 is only available on 64 bit cpus as gcc builtin */
945/* so for this version we are lazy */
946ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
947ecb_function_ int
948ecb_popcount64 (uint64_t x)
949{
950 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
951}
952
953ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
954ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
955ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
956ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
957ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
958ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
959ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
960ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
961
962ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
963ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
964ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
965ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
966ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
967ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
968ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
969ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
970
971#if ECB_GCC_VERSION(4,3)
972 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
973 #define ecb_bswap32(x) __builtin_bswap32 (x)
974 #define ecb_bswap64(x) __builtin_bswap64 (x)
975#else
976 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
977 ecb_function_ uint16_t
978 ecb_bswap16 (uint16_t x)
979 {
980 return ecb_rotl16 (x, 8);
981 }
982
983 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
984 ecb_function_ uint32_t
985 ecb_bswap32 (uint32_t x)
986 {
987 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
988 }
989
990 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
991 ecb_function_ uint64_t
992 ecb_bswap64 (uint64_t x)
993 {
994 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
995 }
996#endif
997
998#if ECB_GCC_VERSION(4,5)
999 #define ecb_unreachable() __builtin_unreachable ()
1000#else
1001 /* this seems to work fine, but gcc always emits a warning for it :/ */
1002 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1003 ecb_inline void ecb_unreachable (void) { }
1004#endif
1005
1006/* try to tell the compiler that some condition is definitely true */
1007#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1008
1009ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1010ecb_inline unsigned char
1011ecb_byteorder_helper (void)
1012{
1013 /* the union code still generates code under pressure in gcc, */
1014 /* but less than using pointers, and always seems to */
1015 /* successfully return a constant. */
1016 /* the reason why we have this horrible preprocessor mess */
1017 /* is to avoid it in all cases, at least on common architectures */
1018 /* or when using a recent enough gcc version (>= 4.6) */
1019#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1020 return 0x44;
1021#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1022 return 0x44;
1023#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1024 return 0x11;
1025#else
1026 union
1027 {
1028 uint32_t i;
1029 uint8_t c;
1030 } u = { 0x11223344 };
1031 return u.c;
1032#endif
1033}
1034
1035ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1036ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1037ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1038ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1039
1040#if ECB_GCC_VERSION(3,0) || ECB_C99
1041 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1042#else
1043 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1044#endif
1045
1046#if __cplusplus
1047 template<typename T>
1048 static inline T ecb_div_rd (T val, T div)
1049 {
1050 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1051 }
1052 template<typename T>
1053 static inline T ecb_div_ru (T val, T div)
1054 {
1055 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1056 }
1057#else
1058 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1059 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1060#endif
1061
1062#if ecb_cplusplus_does_not_suck
1063 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1064 template<typename T, int N>
1065 static inline int ecb_array_length (const T (&arr)[N])
1066 {
1067 return N;
1068 }
1069#else
1070 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1071#endif
1072
1073/*******************************************************************************/
1074/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1075
1076/* basically, everything uses "ieee pure-endian" floating point numbers */
1077/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1078#if 0 \
1079 || __i386 || __i386__ \
1080 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1081 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1082 || defined __arm__ && defined __ARM_EABI__ \
1083 || defined __s390__ || defined __s390x__ \
1084 || defined __mips__ \
1085 || defined __alpha__ \
1086 || defined __hppa__ \
1087 || defined __ia64__ \
1088 || defined __m68k__ \
1089 || defined __m88k__ \
1090 || defined __sh__ \
1091 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1092 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__))
1093 #define ECB_STDFP 1
1094 #include <string.h> /* for memcpy */
1095#else
1096 #define ECB_STDFP 0
1097#endif
1098
1099#ifndef ECB_NO_LIBM
1100
1101 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1102
1103 /* only the oldest of old doesn't have this one. solaris. */
1104 #ifdef INFINITY
1105 #define ECB_INFINITY INFINITY
1106 #else
1107 #define ECB_INFINITY HUGE_VAL
1108 #endif
1109
1110 #ifdef NAN
1111 #define ECB_NAN NAN
1112 #else
1113 #define ECB_NAN ECB_INFINITY
1114 #endif
1115
1116 /* converts an ieee half/binary16 to a float */
1117 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1118 ecb_function_ float
1119 ecb_binary16_to_float (uint16_t x)
1120 {
1121 int e = (x >> 10) & 0x1f;
1122 int m = x & 0x3ff;
1123 float r;
1124
1125 if (!e ) r = ldexpf (m , -24);
1126 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1127 else if (m ) r = ECB_NAN;
1128 else r = ECB_INFINITY;
1129
1130 return x & 0x8000 ? -r : r;
1131 }
1132
1133 /* convert a float to ieee single/binary32 */
1134 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1135 ecb_function_ uint32_t
1136 ecb_float_to_binary32 (float x)
1137 {
1138 uint32_t r;
1139
1140 #if ECB_STDFP
1141 memcpy (&r, &x, 4);
1142 #else
1143 /* slow emulation, works for anything but -0 */
1144 uint32_t m;
1145 int e;
1146
1147 if (x == 0e0f ) return 0x00000000U;
1148 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1149 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1150 if (x != x ) return 0x7fbfffffU;
1151
1152 m = frexpf (x, &e) * 0x1000000U;
1153
1154 r = m & 0x80000000U;
1155
1156 if (r)
1157 m = -m;
1158
1159 if (e <= -126)
1160 {
1161 m &= 0xffffffU;
1162 m >>= (-125 - e);
1163 e = -126;
1164 }
1165
1166 r |= (e + 126) << 23;
1167 r |= m & 0x7fffffU;
1168 #endif
1169
1170 return r;
1171 }
1172
1173 /* converts an ieee single/binary32 to a float */
1174 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1175 ecb_function_ float
1176 ecb_binary32_to_float (uint32_t x)
1177 {
1178 float r;
1179
1180 #if ECB_STDFP
1181 memcpy (&r, &x, 4);
1182 #else
1183 /* emulation, only works for normals and subnormals and +0 */
1184 int neg = x >> 31;
1185 int e = (x >> 23) & 0xffU;
1186
1187 x &= 0x7fffffU;
1188
1189 if (e)
1190 x |= 0x800000U;
1191 else
1192 e = 1;
1193
1194 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1195 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1196
1197 r = neg ? -r : r;
1198 #endif
1199
1200 return r;
1201 }
1202
1203 /* convert a double to ieee double/binary64 */
1204 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1205 ecb_function_ uint64_t
1206 ecb_double_to_binary64 (double x)
1207 {
1208 uint64_t r;
1209
1210 #if ECB_STDFP
1211 memcpy (&r, &x, 8);
1212 #else
1213 /* slow emulation, works for anything but -0 */
1214 uint64_t m;
1215 int e;
1216
1217 if (x == 0e0 ) return 0x0000000000000000U;
1218 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1219 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1220 if (x != x ) return 0X7ff7ffffffffffffU;
1221
1222 m = frexp (x, &e) * 0x20000000000000U;
1223
1224 r = m & 0x8000000000000000;;
1225
1226 if (r)
1227 m = -m;
1228
1229 if (e <= -1022)
1230 {
1231 m &= 0x1fffffffffffffU;
1232 m >>= (-1021 - e);
1233 e = -1022;
1234 }
1235
1236 r |= ((uint64_t)(e + 1022)) << 52;
1237 r |= m & 0xfffffffffffffU;
1238 #endif
1239
1240 return r;
1241 }
1242
1243 /* converts an ieee double/binary64 to a double */
1244 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1245 ecb_function_ double
1246 ecb_binary64_to_double (uint64_t x)
1247 {
1248 double r;
1249
1250 #if ECB_STDFP
1251 memcpy (&r, &x, 8);
1252 #else
1253 /* emulation, only works for normals and subnormals and +0 */
1254 int neg = x >> 63;
1255 int e = (x >> 52) & 0x7ffU;
1256
1257 x &= 0xfffffffffffffU;
1258
1259 if (e)
1260 x |= 0x10000000000000U;
1261 else
1262 e = 1;
1263
1264 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1265 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1266
1267 r = neg ? -r : r;
1268 #endif
1269
1270 return r;
1271 }
1272
1273#endif
1274
1275#endif
1276
1277/* ECB.H END */
1278
1279#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1280/* if your architecture doesn't need memory fences, e.g. because it is
1281 * single-cpu/core, or if you use libev in a project that doesn't use libev
1282 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1283 * libev, in which cases the memory fences become nops.
1284 * alternatively, you can remove this #error and link against libpthread,
1285 * which will then provide the memory fences.
1286 */
1287# error "memory fences not defined for your architecture, please report"
1288#endif
1289
1290#ifndef ECB_MEMORY_FENCE
1291# define ECB_MEMORY_FENCE do { } while (0)
1292# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1293# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1294#endif
1295
1296#define expect_false(cond) ecb_expect_false (cond)
1297#define expect_true(cond) ecb_expect_true (cond)
1298#define noinline ecb_noinline
1299
475#define inline_size static inline 1300#define inline_size ecb_inline
476 1301
477#if EV_FEATURE_CODE 1302#if EV_FEATURE_CODE
478# define inline_speed static inline 1303# define inline_speed ecb_inline
479#else 1304#else
480# define inline_speed static noinline 1305# define inline_speed static noinline
481#endif 1306#endif
482 1307
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1308#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
522# include "ev_win32.c" 1347# include "ev_win32.c"
523#endif 1348#endif
524 1349
525/*****************************************************************************/ 1350/*****************************************************************************/
526 1351
1352/* define a suitable floor function (only used by periodics atm) */
1353
1354#if EV_USE_FLOOR
1355# include <math.h>
1356# define ev_floor(v) floor (v)
1357#else
1358
1359#include <float.h>
1360
1361/* a floor() replacement function, should be independent of ev_tstamp type */
1362static ev_tstamp noinline
1363ev_floor (ev_tstamp v)
1364{
1365 /* the choice of shift factor is not terribly important */
1366#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1367 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1368#else
1369 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1370#endif
1371
1372 /* argument too large for an unsigned long? */
1373 if (expect_false (v >= shift))
1374 {
1375 ev_tstamp f;
1376
1377 if (v == v - 1.)
1378 return v; /* very large number */
1379
1380 f = shift * ev_floor (v * (1. / shift));
1381 return f + ev_floor (v - f);
1382 }
1383
1384 /* special treatment for negative args? */
1385 if (expect_false (v < 0.))
1386 {
1387 ev_tstamp f = -ev_floor (-v);
1388
1389 return f - (f == v ? 0 : 1);
1390 }
1391
1392 /* fits into an unsigned long */
1393 return (unsigned long)v;
1394}
1395
1396#endif
1397
1398/*****************************************************************************/
1399
527#ifdef __linux 1400#ifdef __linux
528# include <sys/utsname.h> 1401# include <sys/utsname.h>
529#endif 1402#endif
530 1403
531static unsigned int noinline 1404static unsigned int noinline ecb_cold
532ev_linux_version (void) 1405ev_linux_version (void)
533{ 1406{
534#ifdef __linux 1407#ifdef __linux
535 unsigned int v = 0; 1408 unsigned int v = 0;
536 struct utsname buf; 1409 struct utsname buf;
… …
565} 1438}
566 1439
567/*****************************************************************************/ 1440/*****************************************************************************/
568 1441
569#if EV_AVOID_STDIO 1442#if EV_AVOID_STDIO
570static void noinline 1443static void noinline ecb_cold
571ev_printerr (const char *msg) 1444ev_printerr (const char *msg)
572{ 1445{
573 write (STDERR_FILENO, msg, strlen (msg)); 1446 write (STDERR_FILENO, msg, strlen (msg));
574} 1447}
575#endif 1448#endif
576 1449
577static void (*syserr_cb)(const char *msg); 1450static void (*syserr_cb)(const char *msg) EV_THROW;
578 1451
579void 1452void ecb_cold
580ev_set_syserr_cb (void (*cb)(const char *msg)) 1453ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
581{ 1454{
582 syserr_cb = cb; 1455 syserr_cb = cb;
583} 1456}
584 1457
585static void noinline 1458static void noinline ecb_cold
586ev_syserr (const char *msg) 1459ev_syserr (const char *msg)
587{ 1460{
588 if (!msg) 1461 if (!msg)
589 msg = "(libev) system error"; 1462 msg = "(libev) system error";
590 1463
591 if (syserr_cb) 1464 if (syserr_cb)
592 syserr_cb (msg); 1465 syserr_cb (msg);
593 else 1466 else
594 { 1467 {
595#if EV_AVOID_STDIO 1468#if EV_AVOID_STDIO
596 const char *err = strerror (errno);
597
598 ev_printerr (msg); 1469 ev_printerr (msg);
599 ev_printerr (": "); 1470 ev_printerr (": ");
600 ev_printerr (err); 1471 ev_printerr (strerror (errno));
601 ev_printerr ("\n"); 1472 ev_printerr ("\n");
602#else 1473#else
603 perror (msg); 1474 perror (msg);
604#endif 1475#endif
605 abort (); 1476 abort ();
606 } 1477 }
607} 1478}
608 1479
609static void * 1480static void *
610ev_realloc_emul (void *ptr, long size) 1481ev_realloc_emul (void *ptr, long size) EV_THROW
611{ 1482{
612#if __GLIBC__
613 return realloc (ptr, size);
614#else
615 /* some systems, notably openbsd and darwin, fail to properly 1483 /* some systems, notably openbsd and darwin, fail to properly
616 * implement realloc (x, 0) (as required by both ansi c-89 and 1484 * implement realloc (x, 0) (as required by both ansi c-89 and
617 * the single unix specification, so work around them here. 1485 * the single unix specification, so work around them here.
1486 * recently, also (at least) fedora and debian started breaking it,
1487 * despite documenting it otherwise.
618 */ 1488 */
619 1489
620 if (size) 1490 if (size)
621 return realloc (ptr, size); 1491 return realloc (ptr, size);
622 1492
623 free (ptr); 1493 free (ptr);
624 return 0; 1494 return 0;
625#endif
626} 1495}
627 1496
628static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1497static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
629 1498
630void 1499void ecb_cold
631ev_set_allocator (void *(*cb)(void *ptr, long size)) 1500ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
632{ 1501{
633 alloc = cb; 1502 alloc = cb;
634} 1503}
635 1504
636inline_speed void * 1505inline_speed void *
… …
639 ptr = alloc (ptr, size); 1508 ptr = alloc (ptr, size);
640 1509
641 if (!ptr && size) 1510 if (!ptr && size)
642 { 1511 {
643#if EV_AVOID_STDIO 1512#if EV_AVOID_STDIO
644 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1513 ev_printerr ("(libev) memory allocation failed, aborting.\n");
645#else 1514#else
646 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1515 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
647#endif 1516#endif
648 abort (); 1517 abort ();
649 } 1518 }
650 1519
651 return ptr; 1520 return ptr;
… …
724 #undef VAR 1593 #undef VAR
725 }; 1594 };
726 #include "ev_wrap.h" 1595 #include "ev_wrap.h"
727 1596
728 static struct ev_loop default_loop_struct; 1597 static struct ev_loop default_loop_struct;
729 struct ev_loop *ev_default_loop_ptr; 1598 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
730 1599
731#else 1600#else
732 1601
733 ev_tstamp ev_rt_now; 1602 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
734 #define VAR(name,decl) static decl; 1603 #define VAR(name,decl) static decl;
735 #include "ev_vars.h" 1604 #include "ev_vars.h"
736 #undef VAR 1605 #undef VAR
737 1606
738 static int ev_default_loop_ptr; 1607 static int ev_default_loop_ptr;
… …
753 1622
754/*****************************************************************************/ 1623/*****************************************************************************/
755 1624
756#ifndef EV_HAVE_EV_TIME 1625#ifndef EV_HAVE_EV_TIME
757ev_tstamp 1626ev_tstamp
758ev_time (void) 1627ev_time (void) EV_THROW
759{ 1628{
760#if EV_USE_REALTIME 1629#if EV_USE_REALTIME
761 if (expect_true (have_realtime)) 1630 if (expect_true (have_realtime))
762 { 1631 {
763 struct timespec ts; 1632 struct timespec ts;
… …
787 return ev_time (); 1656 return ev_time ();
788} 1657}
789 1658
790#if EV_MULTIPLICITY 1659#if EV_MULTIPLICITY
791ev_tstamp 1660ev_tstamp
792ev_now (EV_P) 1661ev_now (EV_P) EV_THROW
793{ 1662{
794 return ev_rt_now; 1663 return ev_rt_now;
795} 1664}
796#endif 1665#endif
797 1666
798void 1667void
799ev_sleep (ev_tstamp delay) 1668ev_sleep (ev_tstamp delay) EV_THROW
800{ 1669{
801 if (delay > 0.) 1670 if (delay > 0.)
802 { 1671 {
803#if EV_USE_NANOSLEEP 1672#if EV_USE_NANOSLEEP
804 struct timespec ts; 1673 struct timespec ts;
805 1674
806 EV_TS_SET (ts, delay); 1675 EV_TS_SET (ts, delay);
807 nanosleep (&ts, 0); 1676 nanosleep (&ts, 0);
808#elif defined(_WIN32) 1677#elif defined _WIN32
809 Sleep ((unsigned long)(delay * 1e3)); 1678 Sleep ((unsigned long)(delay * 1e3));
810#else 1679#else
811 struct timeval tv; 1680 struct timeval tv;
812 1681
813 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1682 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
832 1701
833 do 1702 do
834 ncur <<= 1; 1703 ncur <<= 1;
835 while (cnt > ncur); 1704 while (cnt > ncur);
836 1705
837 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1706 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
838 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1707 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
839 { 1708 {
840 ncur *= elem; 1709 ncur *= elem;
841 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1710 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
842 ncur = ncur - sizeof (void *) * 4; 1711 ncur = ncur - sizeof (void *) * 4;
… …
844 } 1713 }
845 1714
846 return ncur; 1715 return ncur;
847} 1716}
848 1717
849static noinline void * 1718static void * noinline ecb_cold
850array_realloc (int elem, void *base, int *cur, int cnt) 1719array_realloc (int elem, void *base, int *cur, int cnt)
851{ 1720{
852 *cur = array_nextsize (elem, *cur, cnt); 1721 *cur = array_nextsize (elem, *cur, cnt);
853 return ev_realloc (base, elem * *cur); 1722 return ev_realloc (base, elem * *cur);
854} 1723}
… …
857 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1726 memset ((void *)(base), 0, sizeof (*(base)) * (count))
858 1727
859#define array_needsize(type,base,cur,cnt,init) \ 1728#define array_needsize(type,base,cur,cnt,init) \
860 if (expect_false ((cnt) > (cur))) \ 1729 if (expect_false ((cnt) > (cur))) \
861 { \ 1730 { \
862 int ocur_ = (cur); \ 1731 int ecb_unused ocur_ = (cur); \
863 (base) = (type *)array_realloc \ 1732 (base) = (type *)array_realloc \
864 (sizeof (type), (base), &(cur), (cnt)); \ 1733 (sizeof (type), (base), &(cur), (cnt)); \
865 init ((base) + (ocur_), (cur) - ocur_); \ 1734 init ((base) + (ocur_), (cur) - ocur_); \
866 } 1735 }
867 1736
… …
885pendingcb (EV_P_ ev_prepare *w, int revents) 1754pendingcb (EV_P_ ev_prepare *w, int revents)
886{ 1755{
887} 1756}
888 1757
889void noinline 1758void noinline
890ev_feed_event (EV_P_ void *w, int revents) 1759ev_feed_event (EV_P_ void *w, int revents) EV_THROW
891{ 1760{
892 W w_ = (W)w; 1761 W w_ = (W)w;
893 int pri = ABSPRI (w_); 1762 int pri = ABSPRI (w_);
894 1763
895 if (expect_false (w_->pending)) 1764 if (expect_false (w_->pending))
… …
899 w_->pending = ++pendingcnt [pri]; 1768 w_->pending = ++pendingcnt [pri];
900 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1769 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
901 pendings [pri][w_->pending - 1].w = w_; 1770 pendings [pri][w_->pending - 1].w = w_;
902 pendings [pri][w_->pending - 1].events = revents; 1771 pendings [pri][w_->pending - 1].events = revents;
903 } 1772 }
1773
1774 pendingpri = NUMPRI - 1;
904} 1775}
905 1776
906inline_speed void 1777inline_speed void
907feed_reverse (EV_P_ W w) 1778feed_reverse (EV_P_ W w)
908{ 1779{
… …
954 if (expect_true (!anfd->reify)) 1825 if (expect_true (!anfd->reify))
955 fd_event_nocheck (EV_A_ fd, revents); 1826 fd_event_nocheck (EV_A_ fd, revents);
956} 1827}
957 1828
958void 1829void
959ev_feed_fd_event (EV_P_ int fd, int revents) 1830ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
960{ 1831{
961 if (fd >= 0 && fd < anfdmax) 1832 if (fd >= 0 && fd < anfdmax)
962 fd_event_nocheck (EV_A_ fd, revents); 1833 fd_event_nocheck (EV_A_ fd, revents);
963} 1834}
964 1835
… …
967inline_size void 1838inline_size void
968fd_reify (EV_P) 1839fd_reify (EV_P)
969{ 1840{
970 int i; 1841 int i;
971 1842
1843#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1844 for (i = 0; i < fdchangecnt; ++i)
1845 {
1846 int fd = fdchanges [i];
1847 ANFD *anfd = anfds + fd;
1848
1849 if (anfd->reify & EV__IOFDSET && anfd->head)
1850 {
1851 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1852
1853 if (handle != anfd->handle)
1854 {
1855 unsigned long arg;
1856
1857 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1858
1859 /* handle changed, but fd didn't - we need to do it in two steps */
1860 backend_modify (EV_A_ fd, anfd->events, 0);
1861 anfd->events = 0;
1862 anfd->handle = handle;
1863 }
1864 }
1865 }
1866#endif
1867
972 for (i = 0; i < fdchangecnt; ++i) 1868 for (i = 0; i < fdchangecnt; ++i)
973 { 1869 {
974 int fd = fdchanges [i]; 1870 int fd = fdchanges [i];
975 ANFD *anfd = anfds + fd; 1871 ANFD *anfd = anfds + fd;
976 ev_io *w; 1872 ev_io *w;
… …
978 unsigned char o_events = anfd->events; 1874 unsigned char o_events = anfd->events;
979 unsigned char o_reify = anfd->reify; 1875 unsigned char o_reify = anfd->reify;
980 1876
981 anfd->reify = 0; 1877 anfd->reify = 0;
982 1878
983#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
984 if (o_reify & EV__IOFDSET)
985 {
986 unsigned long arg;
987 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
988 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
989 printf ("oi %d %x\n", fd, anfd->handle);//D
990 }
991#endif
992
993 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 1879 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
994 { 1880 {
995 anfd->events = 0; 1881 anfd->events = 0;
996 1882
997 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1883 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
1022 fdchanges [fdchangecnt - 1] = fd; 1908 fdchanges [fdchangecnt - 1] = fd;
1023 } 1909 }
1024} 1910}
1025 1911
1026/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1912/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1027inline_speed void 1913inline_speed void ecb_cold
1028fd_kill (EV_P_ int fd) 1914fd_kill (EV_P_ int fd)
1029{ 1915{
1030 ev_io *w; 1916 ev_io *w;
1031 1917
1032 while ((w = (ev_io *)anfds [fd].head)) 1918 while ((w = (ev_io *)anfds [fd].head))
… …
1035 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1921 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1036 } 1922 }
1037} 1923}
1038 1924
1039/* check whether the given fd is actually valid, for error recovery */ 1925/* check whether the given fd is actually valid, for error recovery */
1040inline_size int 1926inline_size int ecb_cold
1041fd_valid (int fd) 1927fd_valid (int fd)
1042{ 1928{
1043#ifdef _WIN32 1929#ifdef _WIN32
1044 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1930 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1045#else 1931#else
1046 return fcntl (fd, F_GETFD) != -1; 1932 return fcntl (fd, F_GETFD) != -1;
1047#endif 1933#endif
1048} 1934}
1049 1935
1050/* called on EBADF to verify fds */ 1936/* called on EBADF to verify fds */
1051static void noinline 1937static void noinline ecb_cold
1052fd_ebadf (EV_P) 1938fd_ebadf (EV_P)
1053{ 1939{
1054 int fd; 1940 int fd;
1055 1941
1056 for (fd = 0; fd < anfdmax; ++fd) 1942 for (fd = 0; fd < anfdmax; ++fd)
… …
1058 if (!fd_valid (fd) && errno == EBADF) 1944 if (!fd_valid (fd) && errno == EBADF)
1059 fd_kill (EV_A_ fd); 1945 fd_kill (EV_A_ fd);
1060} 1946}
1061 1947
1062/* called on ENOMEM in select/poll to kill some fds and retry */ 1948/* called on ENOMEM in select/poll to kill some fds and retry */
1063static void noinline 1949static void noinline ecb_cold
1064fd_enomem (EV_P) 1950fd_enomem (EV_P)
1065{ 1951{
1066 int fd; 1952 int fd;
1067 1953
1068 for (fd = anfdmax; fd--; ) 1954 for (fd = anfdmax; fd--; )
… …
1263 2149
1264/*****************************************************************************/ 2150/*****************************************************************************/
1265 2151
1266#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2152#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1267 2153
1268static void noinline 2154static void noinline ecb_cold
1269evpipe_init (EV_P) 2155evpipe_init (EV_P)
1270{ 2156{
1271 if (!ev_is_active (&pipe_w)) 2157 if (!ev_is_active (&pipe_w))
1272 { 2158 {
2159 int fds [2];
2160
1273# if EV_USE_EVENTFD 2161# if EV_USE_EVENTFD
2162 fds [0] = -1;
1274 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2163 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1275 if (evfd < 0 && errno == EINVAL) 2164 if (fds [1] < 0 && errno == EINVAL)
1276 evfd = eventfd (0, 0); 2165 fds [1] = eventfd (0, 0);
1277 2166
1278 if (evfd >= 0) 2167 if (fds [1] < 0)
2168# endif
1279 { 2169 {
2170 while (pipe (fds))
2171 ev_syserr ("(libev) error creating signal/async pipe");
2172
2173 fd_intern (fds [0]);
2174 }
2175
1280 evpipe [0] = -1; 2176 evpipe [0] = fds [0];
1281 fd_intern (evfd); /* doing it twice doesn't hurt */ 2177
1282 ev_io_set (&pipe_w, evfd, EV_READ); 2178 if (evpipe [1] < 0)
2179 evpipe [1] = fds [1]; /* first call, set write fd */
2180 else
2181 {
2182 /* on subsequent calls, do not change evpipe [1] */
2183 /* so that evpipe_write can always rely on its value. */
2184 /* this branch does not do anything sensible on windows, */
2185 /* so must not be executed on windows */
2186
2187 dup2 (fds [1], evpipe [1]);
2188 close (fds [1]);
2189 }
2190
2191 fd_intern (evpipe [1]);
2192
2193 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2194 ev_io_start (EV_A_ &pipe_w);
2195 ev_unref (EV_A); /* watcher should not keep loop alive */
2196 }
2197}
2198
2199inline_speed void
2200evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2201{
2202 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2203
2204 if (expect_true (*flag))
2205 return;
2206
2207 *flag = 1;
2208 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2209
2210 pipe_write_skipped = 1;
2211
2212 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2213
2214 if (pipe_write_wanted)
2215 {
2216 int old_errno;
2217
2218 pipe_write_skipped = 0;
2219 ECB_MEMORY_FENCE_RELEASE;
2220
2221 old_errno = errno; /* save errno because write will clobber it */
2222
2223#if EV_USE_EVENTFD
2224 if (evpipe [0] < 0)
2225 {
2226 uint64_t counter = 1;
2227 write (evpipe [1], &counter, sizeof (uint64_t));
1283 } 2228 }
1284 else 2229 else
1285# endif 2230#endif
1286 { 2231 {
1287 while (pipe (evpipe)) 2232#ifdef _WIN32
1288 ev_syserr ("(libev) error creating signal/async pipe"); 2233 WSABUF buf;
1289 2234 DWORD sent;
1290 fd_intern (evpipe [0]); 2235 buf.buf = &buf;
1291 fd_intern (evpipe [1]); 2236 buf.len = 1;
1292 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2237 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2238#else
2239 write (evpipe [1], &(evpipe [1]), 1);
2240#endif
1293 } 2241 }
1294
1295 ev_io_start (EV_A_ &pipe_w);
1296 ev_unref (EV_A); /* watcher should not keep loop alive */
1297 }
1298}
1299
1300inline_size void
1301evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1302{
1303 if (!*flag)
1304 {
1305 int old_errno = errno; /* save errno because write might clobber it */
1306 char dummy;
1307
1308 *flag = 1;
1309
1310#if EV_USE_EVENTFD
1311 if (evfd >= 0)
1312 {
1313 uint64_t counter = 1;
1314 write (evfd, &counter, sizeof (uint64_t));
1315 }
1316 else
1317#endif
1318 /* win32 people keep sending patches that change this write() to send() */
1319 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1320 /* so when you think this write should be a send instead, please find out */
1321 /* where your send() is from - it's definitely not the microsoft send, and */
1322 /* tell me. thank you. */
1323 write (evpipe [1], &dummy, 1);
1324 2242
1325 errno = old_errno; 2243 errno = old_errno;
1326 } 2244 }
1327} 2245}
1328 2246
… …
1331static void 2249static void
1332pipecb (EV_P_ ev_io *iow, int revents) 2250pipecb (EV_P_ ev_io *iow, int revents)
1333{ 2251{
1334 int i; 2252 int i;
1335 2253
2254 if (revents & EV_READ)
2255 {
1336#if EV_USE_EVENTFD 2256#if EV_USE_EVENTFD
1337 if (evfd >= 0) 2257 if (evpipe [0] < 0)
1338 { 2258 {
1339 uint64_t counter; 2259 uint64_t counter;
1340 read (evfd, &counter, sizeof (uint64_t)); 2260 read (evpipe [1], &counter, sizeof (uint64_t));
1341 } 2261 }
1342 else 2262 else
1343#endif 2263#endif
1344 { 2264 {
1345 char dummy; 2265 char dummy[4];
1346 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2266#ifdef _WIN32
2267 WSABUF buf;
2268 DWORD recvd;
2269 DWORD flags = 0;
2270 buf.buf = dummy;
2271 buf.len = sizeof (dummy);
2272 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2273#else
1347 read (evpipe [0], &dummy, 1); 2274 read (evpipe [0], &dummy, sizeof (dummy));
2275#endif
2276 }
1348 } 2277 }
1349 2278
2279 pipe_write_skipped = 0;
2280
2281 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2282
2283#if EV_SIGNAL_ENABLE
1350 if (sig_pending) 2284 if (sig_pending)
1351 { 2285 {
1352 sig_pending = 0; 2286 sig_pending = 0;
2287
2288 ECB_MEMORY_FENCE;
1353 2289
1354 for (i = EV_NSIG - 1; i--; ) 2290 for (i = EV_NSIG - 1; i--; )
1355 if (expect_false (signals [i].pending)) 2291 if (expect_false (signals [i].pending))
1356 ev_feed_signal_event (EV_A_ i + 1); 2292 ev_feed_signal_event (EV_A_ i + 1);
1357 } 2293 }
2294#endif
1358 2295
1359#if EV_ASYNC_ENABLE 2296#if EV_ASYNC_ENABLE
1360 if (async_pending) 2297 if (async_pending)
1361 { 2298 {
1362 async_pending = 0; 2299 async_pending = 0;
2300
2301 ECB_MEMORY_FENCE;
1363 2302
1364 for (i = asynccnt; i--; ) 2303 for (i = asynccnt; i--; )
1365 if (asyncs [i]->sent) 2304 if (asyncs [i]->sent)
1366 { 2305 {
1367 asyncs [i]->sent = 0; 2306 asyncs [i]->sent = 0;
2307 ECB_MEMORY_FENCE_RELEASE;
1368 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2308 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1369 } 2309 }
1370 } 2310 }
1371#endif 2311#endif
1372} 2312}
1373 2313
1374/*****************************************************************************/ 2314/*****************************************************************************/
1375 2315
2316void
2317ev_feed_signal (int signum) EV_THROW
2318{
2319#if EV_MULTIPLICITY
2320 EV_P;
2321 ECB_MEMORY_FENCE_ACQUIRE;
2322 EV_A = signals [signum - 1].loop;
2323
2324 if (!EV_A)
2325 return;
2326#endif
2327
2328 signals [signum - 1].pending = 1;
2329 evpipe_write (EV_A_ &sig_pending);
2330}
2331
1376static void 2332static void
1377ev_sighandler (int signum) 2333ev_sighandler (int signum)
1378{ 2334{
1379#if EV_MULTIPLICITY
1380 EV_P = signals [signum - 1].loop;
1381#endif
1382
1383#ifdef _WIN32 2335#ifdef _WIN32
1384 signal (signum, ev_sighandler); 2336 signal (signum, ev_sighandler);
1385#endif 2337#endif
1386 2338
1387 signals [signum - 1].pending = 1; 2339 ev_feed_signal (signum);
1388 evpipe_write (EV_A_ &sig_pending);
1389} 2340}
1390 2341
1391void noinline 2342void noinline
1392ev_feed_signal_event (EV_P_ int signum) 2343ev_feed_signal_event (EV_P_ int signum) EV_THROW
1393{ 2344{
1394 WL w; 2345 WL w;
1395 2346
1396 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2347 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1397 return; 2348 return;
1398 2349
1399 --signum; 2350 --signum;
1400 2351
1401#if EV_MULTIPLICITY 2352#if EV_MULTIPLICITY
… …
1405 if (expect_false (signals [signum].loop != EV_A)) 2356 if (expect_false (signals [signum].loop != EV_A))
1406 return; 2357 return;
1407#endif 2358#endif
1408 2359
1409 signals [signum].pending = 0; 2360 signals [signum].pending = 0;
2361 ECB_MEMORY_FENCE_RELEASE;
1410 2362
1411 for (w = signals [signum].head; w; w = w->next) 2363 for (w = signals [signum].head; w; w = w->next)
1412 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2364 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1413} 2365}
1414 2366
… …
1512#endif 2464#endif
1513#if EV_USE_SELECT 2465#if EV_USE_SELECT
1514# include "ev_select.c" 2466# include "ev_select.c"
1515#endif 2467#endif
1516 2468
1517int 2469int ecb_cold
1518ev_version_major (void) 2470ev_version_major (void) EV_THROW
1519{ 2471{
1520 return EV_VERSION_MAJOR; 2472 return EV_VERSION_MAJOR;
1521} 2473}
1522 2474
1523int 2475int ecb_cold
1524ev_version_minor (void) 2476ev_version_minor (void) EV_THROW
1525{ 2477{
1526 return EV_VERSION_MINOR; 2478 return EV_VERSION_MINOR;
1527} 2479}
1528 2480
1529/* return true if we are running with elevated privileges and should ignore env variables */ 2481/* return true if we are running with elevated privileges and should ignore env variables */
1530int inline_size 2482int inline_size ecb_cold
1531enable_secure (void) 2483enable_secure (void)
1532{ 2484{
1533#ifdef _WIN32 2485#ifdef _WIN32
1534 return 0; 2486 return 0;
1535#else 2487#else
1536 return getuid () != geteuid () 2488 return getuid () != geteuid ()
1537 || getgid () != getegid (); 2489 || getgid () != getegid ();
1538#endif 2490#endif
1539} 2491}
1540 2492
1541unsigned int 2493unsigned int ecb_cold
1542ev_supported_backends (void) 2494ev_supported_backends (void) EV_THROW
1543{ 2495{
1544 unsigned int flags = 0; 2496 unsigned int flags = 0;
1545 2497
1546 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2498 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1547 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2499 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1550 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2502 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1551 2503
1552 return flags; 2504 return flags;
1553} 2505}
1554 2506
1555unsigned int 2507unsigned int ecb_cold
1556ev_recommended_backends (void) 2508ev_recommended_backends (void) EV_THROW
1557{ 2509{
1558 unsigned int flags = ev_supported_backends (); 2510 unsigned int flags = ev_supported_backends ();
1559 2511
1560#ifndef __NetBSD__ 2512#ifndef __NetBSD__
1561 /* kqueue is borked on everything but netbsd apparently */ 2513 /* kqueue is borked on everything but netbsd apparently */
… …
1572#endif 2524#endif
1573 2525
1574 return flags; 2526 return flags;
1575} 2527}
1576 2528
1577unsigned int 2529unsigned int ecb_cold
1578ev_embeddable_backends (void) 2530ev_embeddable_backends (void) EV_THROW
1579{ 2531{
1580 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1581 2533
1582 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1583 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2535 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1585 2537
1586 return flags; 2538 return flags;
1587} 2539}
1588 2540
1589unsigned int 2541unsigned int
1590ev_backend (EV_P) 2542ev_backend (EV_P) EV_THROW
1591{ 2543{
1592 return backend; 2544 return backend;
1593} 2545}
1594 2546
1595#if EV_FEATURE_API 2547#if EV_FEATURE_API
1596unsigned int 2548unsigned int
1597ev_iteration (EV_P) 2549ev_iteration (EV_P) EV_THROW
1598{ 2550{
1599 return loop_count; 2551 return loop_count;
1600} 2552}
1601 2553
1602unsigned int 2554unsigned int
1603ev_depth (EV_P) 2555ev_depth (EV_P) EV_THROW
1604{ 2556{
1605 return loop_depth; 2557 return loop_depth;
1606} 2558}
1607 2559
1608void 2560void
1609ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2561ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1610{ 2562{
1611 io_blocktime = interval; 2563 io_blocktime = interval;
1612} 2564}
1613 2565
1614void 2566void
1615ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2567ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1616{ 2568{
1617 timeout_blocktime = interval; 2569 timeout_blocktime = interval;
1618} 2570}
1619 2571
1620void 2572void
1621ev_set_userdata (EV_P_ void *data) 2573ev_set_userdata (EV_P_ void *data) EV_THROW
1622{ 2574{
1623 userdata = data; 2575 userdata = data;
1624} 2576}
1625 2577
1626void * 2578void *
1627ev_userdata (EV_P) 2579ev_userdata (EV_P) EV_THROW
1628{ 2580{
1629 return userdata; 2581 return userdata;
1630} 2582}
1631 2583
2584void
1632void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2585ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1633{ 2586{
1634 invoke_cb = invoke_pending_cb; 2587 invoke_cb = invoke_pending_cb;
1635} 2588}
1636 2589
1637void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2590void
2591ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
1638{ 2592{
1639 release_cb = release; 2593 release_cb = release;
1640 acquire_cb = acquire; 2594 acquire_cb = acquire;
1641} 2595}
1642#endif 2596#endif
1643 2597
1644/* initialise a loop structure, must be zero-initialised */ 2598/* initialise a loop structure, must be zero-initialised */
1645static void noinline 2599static void noinline ecb_cold
1646loop_init (EV_P_ unsigned int flags) 2600loop_init (EV_P_ unsigned int flags) EV_THROW
1647{ 2601{
1648 if (!backend) 2602 if (!backend)
1649 { 2603 {
2604 origflags = flags;
2605
1650#if EV_USE_REALTIME 2606#if EV_USE_REALTIME
1651 if (!have_realtime) 2607 if (!have_realtime)
1652 { 2608 {
1653 struct timespec ts; 2609 struct timespec ts;
1654 2610
… …
1676 if (!(flags & EVFLAG_NOENV) 2632 if (!(flags & EVFLAG_NOENV)
1677 && !enable_secure () 2633 && !enable_secure ()
1678 && getenv ("LIBEV_FLAGS")) 2634 && getenv ("LIBEV_FLAGS"))
1679 flags = atoi (getenv ("LIBEV_FLAGS")); 2635 flags = atoi (getenv ("LIBEV_FLAGS"));
1680 2636
1681 ev_rt_now = ev_time (); 2637 ev_rt_now = ev_time ();
1682 mn_now = get_clock (); 2638 mn_now = get_clock ();
1683 now_floor = mn_now; 2639 now_floor = mn_now;
1684 rtmn_diff = ev_rt_now - mn_now; 2640 rtmn_diff = ev_rt_now - mn_now;
1685#if EV_FEATURE_API 2641#if EV_FEATURE_API
1686 invoke_cb = ev_invoke_pending; 2642 invoke_cb = ev_invoke_pending;
1687#endif 2643#endif
1688 2644
1689 io_blocktime = 0.; 2645 io_blocktime = 0.;
1690 timeout_blocktime = 0.; 2646 timeout_blocktime = 0.;
1691 backend = 0; 2647 backend = 0;
1692 backend_fd = -1; 2648 backend_fd = -1;
1693 sig_pending = 0; 2649 sig_pending = 0;
1694#if EV_ASYNC_ENABLE 2650#if EV_ASYNC_ENABLE
1695 async_pending = 0; 2651 async_pending = 0;
1696#endif 2652#endif
2653 pipe_write_skipped = 0;
2654 pipe_write_wanted = 0;
2655 evpipe [0] = -1;
2656 evpipe [1] = -1;
1697#if EV_USE_INOTIFY 2657#if EV_USE_INOTIFY
1698 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2658 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1699#endif 2659#endif
1700#if EV_USE_SIGNALFD 2660#if EV_USE_SIGNALFD
1701 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2661 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1702#endif 2662#endif
1703 2663
1704 if (!(flags & 0x0000ffffU)) 2664 if (!(flags & EVBACKEND_MASK))
1705 flags |= ev_recommended_backends (); 2665 flags |= ev_recommended_backends ();
1706 2666
1707#if EV_USE_IOCP 2667#if EV_USE_IOCP
1708 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2668 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1709#endif 2669#endif
… …
1731#endif 2691#endif
1732 } 2692 }
1733} 2693}
1734 2694
1735/* free up a loop structure */ 2695/* free up a loop structure */
1736void 2696void ecb_cold
1737ev_loop_destroy (EV_P) 2697ev_loop_destroy (EV_P)
1738{ 2698{
1739 int i; 2699 int i;
1740 2700
2701#if EV_MULTIPLICITY
1741 /* mimic free (0) */ 2702 /* mimic free (0) */
1742 if (!EV_A) 2703 if (!EV_A)
1743 return; 2704 return;
2705#endif
1744 2706
1745#if EV_CLEANUP_ENABLE 2707#if EV_CLEANUP_ENABLE
1746 /* queue cleanup watchers (and execute them) */ 2708 /* queue cleanup watchers (and execute them) */
1747 if (expect_false (cleanupcnt)) 2709 if (expect_false (cleanupcnt))
1748 { 2710 {
… …
1750 EV_INVOKE_PENDING; 2712 EV_INVOKE_PENDING;
1751 } 2713 }
1752#endif 2714#endif
1753 2715
1754#if EV_CHILD_ENABLE 2716#if EV_CHILD_ENABLE
1755 if (ev_is_active (&childev)) 2717 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1756 { 2718 {
1757 ev_ref (EV_A); /* child watcher */ 2719 ev_ref (EV_A); /* child watcher */
1758 ev_signal_stop (EV_A_ &childev); 2720 ev_signal_stop (EV_A_ &childev);
1759 } 2721 }
1760#endif 2722#endif
… …
1762 if (ev_is_active (&pipe_w)) 2724 if (ev_is_active (&pipe_w))
1763 { 2725 {
1764 /*ev_ref (EV_A);*/ 2726 /*ev_ref (EV_A);*/
1765 /*ev_io_stop (EV_A_ &pipe_w);*/ 2727 /*ev_io_stop (EV_A_ &pipe_w);*/
1766 2728
1767#if EV_USE_EVENTFD
1768 if (evfd >= 0)
1769 close (evfd);
1770#endif
1771
1772 if (evpipe [0] >= 0)
1773 {
1774 EV_WIN32_CLOSE_FD (evpipe [0]); 2729 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1775 EV_WIN32_CLOSE_FD (evpipe [1]); 2730 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1776 }
1777 } 2731 }
1778 2732
1779#if EV_USE_SIGNALFD 2733#if EV_USE_SIGNALFD
1780 if (ev_is_active (&sigfd_w)) 2734 if (ev_is_active (&sigfd_w))
1781 close (sigfd); 2735 close (sigfd);
… …
1867#endif 2821#endif
1868#if EV_USE_INOTIFY 2822#if EV_USE_INOTIFY
1869 infy_fork (EV_A); 2823 infy_fork (EV_A);
1870#endif 2824#endif
1871 2825
2826#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1872 if (ev_is_active (&pipe_w)) 2827 if (ev_is_active (&pipe_w))
1873 { 2828 {
1874 /* this "locks" the handlers against writing to the pipe */ 2829 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1875 /* while we modify the fd vars */
1876 sig_pending = 1;
1877#if EV_ASYNC_ENABLE
1878 async_pending = 1;
1879#endif
1880 2830
1881 ev_ref (EV_A); 2831 ev_ref (EV_A);
1882 ev_io_stop (EV_A_ &pipe_w); 2832 ev_io_stop (EV_A_ &pipe_w);
1883 2833
1884#if EV_USE_EVENTFD
1885 if (evfd >= 0)
1886 close (evfd);
1887#endif
1888
1889 if (evpipe [0] >= 0) 2834 if (evpipe [0] >= 0)
1890 {
1891 EV_WIN32_CLOSE_FD (evpipe [0]); 2835 EV_WIN32_CLOSE_FD (evpipe [0]);
1892 EV_WIN32_CLOSE_FD (evpipe [1]);
1893 }
1894 2836
1895#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1896 evpipe_init (EV_A); 2837 evpipe_init (EV_A);
1897 /* now iterate over everything, in case we missed something */ 2838 /* iterate over everything, in case we missed something before */
1898 pipecb (EV_A_ &pipe_w, EV_READ); 2839 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1899#endif
1900 } 2840 }
2841#endif
1901 2842
1902 postfork = 0; 2843 postfork = 0;
1903} 2844}
1904 2845
1905#if EV_MULTIPLICITY 2846#if EV_MULTIPLICITY
1906 2847
1907struct ev_loop * 2848struct ev_loop * ecb_cold
1908ev_loop_new (unsigned int flags) 2849ev_loop_new (unsigned int flags) EV_THROW
1909{ 2850{
1910 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2851 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1911 2852
1912 memset (EV_A, 0, sizeof (struct ev_loop)); 2853 memset (EV_A, 0, sizeof (struct ev_loop));
1913 loop_init (EV_A_ flags); 2854 loop_init (EV_A_ flags);
… …
1920} 2861}
1921 2862
1922#endif /* multiplicity */ 2863#endif /* multiplicity */
1923 2864
1924#if EV_VERIFY 2865#if EV_VERIFY
1925static void noinline 2866static void noinline ecb_cold
1926verify_watcher (EV_P_ W w) 2867verify_watcher (EV_P_ W w)
1927{ 2868{
1928 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2869 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1929 2870
1930 if (w->pending) 2871 if (w->pending)
1931 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2872 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1932} 2873}
1933 2874
1934static void noinline 2875static void noinline ecb_cold
1935verify_heap (EV_P_ ANHE *heap, int N) 2876verify_heap (EV_P_ ANHE *heap, int N)
1936{ 2877{
1937 int i; 2878 int i;
1938 2879
1939 for (i = HEAP0; i < N + HEAP0; ++i) 2880 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1944 2885
1945 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2886 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1946 } 2887 }
1947} 2888}
1948 2889
1949static void noinline 2890static void noinline ecb_cold
1950array_verify (EV_P_ W *ws, int cnt) 2891array_verify (EV_P_ W *ws, int cnt)
1951{ 2892{
1952 while (cnt--) 2893 while (cnt--)
1953 { 2894 {
1954 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2895 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1956 } 2897 }
1957} 2898}
1958#endif 2899#endif
1959 2900
1960#if EV_FEATURE_API 2901#if EV_FEATURE_API
1961void 2902void ecb_cold
1962ev_verify (EV_P) 2903ev_verify (EV_P) EV_THROW
1963{ 2904{
1964#if EV_VERIFY 2905#if EV_VERIFY
1965 int i; 2906 int i;
1966 WL w; 2907 WL w, w2;
1967 2908
1968 assert (activecnt >= -1); 2909 assert (activecnt >= -1);
1969 2910
1970 assert (fdchangemax >= fdchangecnt); 2911 assert (fdchangemax >= fdchangecnt);
1971 for (i = 0; i < fdchangecnt; ++i) 2912 for (i = 0; i < fdchangecnt; ++i)
1972 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2913 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1973 2914
1974 assert (anfdmax >= 0); 2915 assert (anfdmax >= 0);
1975 for (i = 0; i < anfdmax; ++i) 2916 for (i = 0; i < anfdmax; ++i)
2917 {
2918 int j = 0;
2919
1976 for (w = anfds [i].head; w; w = w->next) 2920 for (w = w2 = anfds [i].head; w; w = w->next)
1977 { 2921 {
1978 verify_watcher (EV_A_ (W)w); 2922 verify_watcher (EV_A_ (W)w);
2923
2924 if (j++ & 1)
2925 {
2926 assert (("libev: io watcher list contains a loop", w != w2));
2927 w2 = w2->next;
2928 }
2929
1979 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2930 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1980 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2931 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1981 } 2932 }
2933 }
1982 2934
1983 assert (timermax >= timercnt); 2935 assert (timermax >= timercnt);
1984 verify_heap (EV_A_ timers, timercnt); 2936 verify_heap (EV_A_ timers, timercnt);
1985 2937
1986#if EV_PERIODIC_ENABLE 2938#if EV_PERIODIC_ENABLE
… …
2032#endif 2984#endif
2033} 2985}
2034#endif 2986#endif
2035 2987
2036#if EV_MULTIPLICITY 2988#if EV_MULTIPLICITY
2037struct ev_loop * 2989struct ev_loop * ecb_cold
2038#else 2990#else
2039int 2991int
2040#endif 2992#endif
2041ev_default_loop (unsigned int flags) 2993ev_default_loop (unsigned int flags) EV_THROW
2042{ 2994{
2043 if (!ev_default_loop_ptr) 2995 if (!ev_default_loop_ptr)
2044 { 2996 {
2045#if EV_MULTIPLICITY 2997#if EV_MULTIPLICITY
2046 EV_P = ev_default_loop_ptr = &default_loop_struct; 2998 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2065 3017
2066 return ev_default_loop_ptr; 3018 return ev_default_loop_ptr;
2067} 3019}
2068 3020
2069void 3021void
2070ev_loop_fork (EV_P) 3022ev_loop_fork (EV_P) EV_THROW
2071{ 3023{
2072 postfork = 1; /* must be in line with ev_default_fork */ 3024 postfork = 1;
2073} 3025}
2074 3026
2075/*****************************************************************************/ 3027/*****************************************************************************/
2076 3028
2077void 3029void
… …
2079{ 3031{
2080 EV_CB_INVOKE ((W)w, revents); 3032 EV_CB_INVOKE ((W)w, revents);
2081} 3033}
2082 3034
2083unsigned int 3035unsigned int
2084ev_pending_count (EV_P) 3036ev_pending_count (EV_P) EV_THROW
2085{ 3037{
2086 int pri; 3038 int pri;
2087 unsigned int count = 0; 3039 unsigned int count = 0;
2088 3040
2089 for (pri = NUMPRI; pri--; ) 3041 for (pri = NUMPRI; pri--; )
… …
2093} 3045}
2094 3046
2095void noinline 3047void noinline
2096ev_invoke_pending (EV_P) 3048ev_invoke_pending (EV_P)
2097{ 3049{
2098 int pri; 3050 pendingpri = NUMPRI;
2099 3051
2100 for (pri = NUMPRI; pri--; ) 3052 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3053 {
3054 --pendingpri;
3055
2101 while (pendingcnt [pri]) 3056 while (pendingcnt [pendingpri])
2102 { 3057 {
2103 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3058 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2104 3059
2105 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2106 /* ^ this is no longer true, as pending_w could be here */
2107
2108 p->w->pending = 0; 3060 p->w->pending = 0;
2109 EV_CB_INVOKE (p->w, p->events); 3061 EV_CB_INVOKE (p->w, p->events);
2110 EV_FREQUENT_CHECK; 3062 EV_FREQUENT_CHECK;
2111 } 3063 }
3064 }
2112} 3065}
2113 3066
2114#if EV_IDLE_ENABLE 3067#if EV_IDLE_ENABLE
2115/* make idle watchers pending. this handles the "call-idle */ 3068/* make idle watchers pending. this handles the "call-idle */
2116/* only when higher priorities are idle" logic */ 3069/* only when higher priorities are idle" logic */
… …
2173 feed_reverse_done (EV_A_ EV_TIMER); 3126 feed_reverse_done (EV_A_ EV_TIMER);
2174 } 3127 }
2175} 3128}
2176 3129
2177#if EV_PERIODIC_ENABLE 3130#if EV_PERIODIC_ENABLE
3131
3132static void noinline
3133periodic_recalc (EV_P_ ev_periodic *w)
3134{
3135 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3136 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3137
3138 /* the above almost always errs on the low side */
3139 while (at <= ev_rt_now)
3140 {
3141 ev_tstamp nat = at + w->interval;
3142
3143 /* when resolution fails us, we use ev_rt_now */
3144 if (expect_false (nat == at))
3145 {
3146 at = ev_rt_now;
3147 break;
3148 }
3149
3150 at = nat;
3151 }
3152
3153 ev_at (w) = at;
3154}
3155
2178/* make periodics pending */ 3156/* make periodics pending */
2179inline_size void 3157inline_size void
2180periodics_reify (EV_P) 3158periodics_reify (EV_P)
2181{ 3159{
2182 EV_FREQUENT_CHECK; 3160 EV_FREQUENT_CHECK;
2183 3161
2184 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3162 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2185 { 3163 {
2186 int feed_count = 0;
2187
2188 do 3164 do
2189 { 3165 {
2190 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2191 3167
2192 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3168 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2201 ANHE_at_cache (periodics [HEAP0]); 3177 ANHE_at_cache (periodics [HEAP0]);
2202 downheap (periodics, periodiccnt, HEAP0); 3178 downheap (periodics, periodiccnt, HEAP0);
2203 } 3179 }
2204 else if (w->interval) 3180 else if (w->interval)
2205 { 3181 {
2206 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3182 periodic_recalc (EV_A_ w);
2207 /* if next trigger time is not sufficiently in the future, put it there */
2208 /* this might happen because of floating point inexactness */
2209 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2210 {
2211 ev_at (w) += w->interval;
2212
2213 /* if interval is unreasonably low we might still have a time in the past */
2214 /* so correct this. this will make the periodic very inexact, but the user */
2215 /* has effectively asked to get triggered more often than possible */
2216 if (ev_at (w) < ev_rt_now)
2217 ev_at (w) = ev_rt_now;
2218 }
2219
2220 ANHE_at_cache (periodics [HEAP0]); 3183 ANHE_at_cache (periodics [HEAP0]);
2221 downheap (periodics, periodiccnt, HEAP0); 3184 downheap (periodics, periodiccnt, HEAP0);
2222 } 3185 }
2223 else 3186 else
2224 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3187 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2232 } 3195 }
2233} 3196}
2234 3197
2235/* simply recalculate all periodics */ 3198/* simply recalculate all periodics */
2236/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3199/* TODO: maybe ensure that at least one event happens when jumping forward? */
2237static void noinline 3200static void noinline ecb_cold
2238periodics_reschedule (EV_P) 3201periodics_reschedule (EV_P)
2239{ 3202{
2240 int i; 3203 int i;
2241 3204
2242 /* adjust periodics after time jump */ 3205 /* adjust periodics after time jump */
… …
2245 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3208 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2246 3209
2247 if (w->reschedule_cb) 3210 if (w->reschedule_cb)
2248 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3211 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2249 else if (w->interval) 3212 else if (w->interval)
2250 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3213 periodic_recalc (EV_A_ w);
2251 3214
2252 ANHE_at_cache (periodics [i]); 3215 ANHE_at_cache (periodics [i]);
2253 } 3216 }
2254 3217
2255 reheap (periodics, periodiccnt); 3218 reheap (periodics, periodiccnt);
2256} 3219}
2257#endif 3220#endif
2258 3221
2259/* adjust all timers by a given offset */ 3222/* adjust all timers by a given offset */
2260static void noinline 3223static void noinline ecb_cold
2261timers_reschedule (EV_P_ ev_tstamp adjust) 3224timers_reschedule (EV_P_ ev_tstamp adjust)
2262{ 3225{
2263 int i; 3226 int i;
2264 3227
2265 for (i = 0; i < timercnt; ++i) 3228 for (i = 0; i < timercnt; ++i)
… …
2302 * doesn't hurt either as we only do this on time-jumps or 3265 * doesn't hurt either as we only do this on time-jumps or
2303 * in the unlikely event of having been preempted here. 3266 * in the unlikely event of having been preempted here.
2304 */ 3267 */
2305 for (i = 4; --i; ) 3268 for (i = 4; --i; )
2306 { 3269 {
3270 ev_tstamp diff;
2307 rtmn_diff = ev_rt_now - mn_now; 3271 rtmn_diff = ev_rt_now - mn_now;
2308 3272
3273 diff = odiff - rtmn_diff;
3274
2309 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3275 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2310 return; /* all is well */ 3276 return; /* all is well */
2311 3277
2312 ev_rt_now = ev_time (); 3278 ev_rt_now = ev_time ();
2313 mn_now = get_clock (); 3279 mn_now = get_clock ();
2314 now_floor = mn_now; 3280 now_floor = mn_now;
… …
2336 3302
2337 mn_now = ev_rt_now; 3303 mn_now = ev_rt_now;
2338 } 3304 }
2339} 3305}
2340 3306
2341void 3307int
2342ev_run (EV_P_ int flags) 3308ev_run (EV_P_ int flags)
2343{ 3309{
2344#if EV_FEATURE_API 3310#if EV_FEATURE_API
2345 ++loop_depth; 3311 ++loop_depth;
2346#endif 3312#endif
… …
2404 ev_tstamp prev_mn_now = mn_now; 3370 ev_tstamp prev_mn_now = mn_now;
2405 3371
2406 /* update time to cancel out callback processing overhead */ 3372 /* update time to cancel out callback processing overhead */
2407 time_update (EV_A_ 1e100); 3373 time_update (EV_A_ 1e100);
2408 3374
3375 /* from now on, we want a pipe-wake-up */
3376 pipe_write_wanted = 1;
3377
3378 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3379
2409 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) 3380 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2410 { 3381 {
2411 waittime = MAX_BLOCKTIME; 3382 waittime = MAX_BLOCKTIME;
2412 3383
2413 if (timercnt) 3384 if (timercnt)
2414 { 3385 {
2415 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3386 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2416 if (waittime > to) waittime = to; 3387 if (waittime > to) waittime = to;
2417 } 3388 }
2418 3389
2419#if EV_PERIODIC_ENABLE 3390#if EV_PERIODIC_ENABLE
2420 if (periodiccnt) 3391 if (periodiccnt)
2421 { 3392 {
2422 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3393 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2423 if (waittime > to) waittime = to; 3394 if (waittime > to) waittime = to;
2424 } 3395 }
2425#endif 3396#endif
2426 3397
2427 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3398 /* don't let timeouts decrease the waittime below timeout_blocktime */
2428 if (expect_false (waittime < timeout_blocktime)) 3399 if (expect_false (waittime < timeout_blocktime))
2429 waittime = timeout_blocktime; 3400 waittime = timeout_blocktime;
3401
3402 /* at this point, we NEED to wait, so we have to ensure */
3403 /* to pass a minimum nonzero value to the backend */
3404 if (expect_false (waittime < backend_mintime))
3405 waittime = backend_mintime;
2430 3406
2431 /* extra check because io_blocktime is commonly 0 */ 3407 /* extra check because io_blocktime is commonly 0 */
2432 if (expect_false (io_blocktime)) 3408 if (expect_false (io_blocktime))
2433 { 3409 {
2434 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3410 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2435 3411
2436 if (sleeptime > waittime - backend_fudge) 3412 if (sleeptime > waittime - backend_mintime)
2437 sleeptime = waittime - backend_fudge; 3413 sleeptime = waittime - backend_mintime;
2438 3414
2439 if (expect_true (sleeptime > 0.)) 3415 if (expect_true (sleeptime > 0.))
2440 { 3416 {
2441 ev_sleep (sleeptime); 3417 ev_sleep (sleeptime);
2442 waittime -= sleeptime; 3418 waittime -= sleeptime;
… …
2449#endif 3425#endif
2450 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3426 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2451 backend_poll (EV_A_ waittime); 3427 backend_poll (EV_A_ waittime);
2452 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3428 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2453 3429
3430 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3431
3432 ECB_MEMORY_FENCE_ACQUIRE;
3433 if (pipe_write_skipped)
3434 {
3435 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3436 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3437 }
3438
3439
2454 /* update ev_rt_now, do magic */ 3440 /* update ev_rt_now, do magic */
2455 time_update (EV_A_ waittime + sleeptime); 3441 time_update (EV_A_ waittime + sleeptime);
2456 } 3442 }
2457 3443
2458 /* queue pending timers and reschedule them */ 3444 /* queue pending timers and reschedule them */
… …
2484 loop_done = EVBREAK_CANCEL; 3470 loop_done = EVBREAK_CANCEL;
2485 3471
2486#if EV_FEATURE_API 3472#if EV_FEATURE_API
2487 --loop_depth; 3473 --loop_depth;
2488#endif 3474#endif
3475
3476 return activecnt;
2489} 3477}
2490 3478
2491void 3479void
2492ev_break (EV_P_ int how) 3480ev_break (EV_P_ int how) EV_THROW
2493{ 3481{
2494 loop_done = how; 3482 loop_done = how;
2495} 3483}
2496 3484
2497void 3485void
2498ev_ref (EV_P) 3486ev_ref (EV_P) EV_THROW
2499{ 3487{
2500 ++activecnt; 3488 ++activecnt;
2501} 3489}
2502 3490
2503void 3491void
2504ev_unref (EV_P) 3492ev_unref (EV_P) EV_THROW
2505{ 3493{
2506 --activecnt; 3494 --activecnt;
2507} 3495}
2508 3496
2509void 3497void
2510ev_now_update (EV_P) 3498ev_now_update (EV_P) EV_THROW
2511{ 3499{
2512 time_update (EV_A_ 1e100); 3500 time_update (EV_A_ 1e100);
2513} 3501}
2514 3502
2515void 3503void
2516ev_suspend (EV_P) 3504ev_suspend (EV_P) EV_THROW
2517{ 3505{
2518 ev_now_update (EV_A); 3506 ev_now_update (EV_A);
2519} 3507}
2520 3508
2521void 3509void
2522ev_resume (EV_P) 3510ev_resume (EV_P) EV_THROW
2523{ 3511{
2524 ev_tstamp mn_prev = mn_now; 3512 ev_tstamp mn_prev = mn_now;
2525 3513
2526 ev_now_update (EV_A); 3514 ev_now_update (EV_A);
2527 timers_reschedule (EV_A_ mn_now - mn_prev); 3515 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2566 w->pending = 0; 3554 w->pending = 0;
2567 } 3555 }
2568} 3556}
2569 3557
2570int 3558int
2571ev_clear_pending (EV_P_ void *w) 3559ev_clear_pending (EV_P_ void *w) EV_THROW
2572{ 3560{
2573 W w_ = (W)w; 3561 W w_ = (W)w;
2574 int pending = w_->pending; 3562 int pending = w_->pending;
2575 3563
2576 if (expect_true (pending)) 3564 if (expect_true (pending))
… …
2609} 3597}
2610 3598
2611/*****************************************************************************/ 3599/*****************************************************************************/
2612 3600
2613void noinline 3601void noinline
2614ev_io_start (EV_P_ ev_io *w) 3602ev_io_start (EV_P_ ev_io *w) EV_THROW
2615{ 3603{
2616 int fd = w->fd; 3604 int fd = w->fd;
2617 3605
2618 if (expect_false (ev_is_active (w))) 3606 if (expect_false (ev_is_active (w)))
2619 return; 3607 return;
… …
2625 3613
2626 ev_start (EV_A_ (W)w, 1); 3614 ev_start (EV_A_ (W)w, 1);
2627 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3615 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2628 wlist_add (&anfds[fd].head, (WL)w); 3616 wlist_add (&anfds[fd].head, (WL)w);
2629 3617
3618 /* common bug, apparently */
3619 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3620
2630 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3621 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2631 w->events &= ~EV__IOFDSET; 3622 w->events &= ~EV__IOFDSET;
2632 3623
2633 EV_FREQUENT_CHECK; 3624 EV_FREQUENT_CHECK;
2634} 3625}
2635 3626
2636void noinline 3627void noinline
2637ev_io_stop (EV_P_ ev_io *w) 3628ev_io_stop (EV_P_ ev_io *w) EV_THROW
2638{ 3629{
2639 clear_pending (EV_A_ (W)w); 3630 clear_pending (EV_A_ (W)w);
2640 if (expect_false (!ev_is_active (w))) 3631 if (expect_false (!ev_is_active (w)))
2641 return; 3632 return;
2642 3633
… …
2651 3642
2652 EV_FREQUENT_CHECK; 3643 EV_FREQUENT_CHECK;
2653} 3644}
2654 3645
2655void noinline 3646void noinline
2656ev_timer_start (EV_P_ ev_timer *w) 3647ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2657{ 3648{
2658 if (expect_false (ev_is_active (w))) 3649 if (expect_false (ev_is_active (w)))
2659 return; 3650 return;
2660 3651
2661 ev_at (w) += mn_now; 3652 ev_at (w) += mn_now;
… …
2675 3666
2676 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3667 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2677} 3668}
2678 3669
2679void noinline 3670void noinline
2680ev_timer_stop (EV_P_ ev_timer *w) 3671ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2681{ 3672{
2682 clear_pending (EV_A_ (W)w); 3673 clear_pending (EV_A_ (W)w);
2683 if (expect_false (!ev_is_active (w))) 3674 if (expect_false (!ev_is_active (w)))
2684 return; 3675 return;
2685 3676
… …
2705 3696
2706 EV_FREQUENT_CHECK; 3697 EV_FREQUENT_CHECK;
2707} 3698}
2708 3699
2709void noinline 3700void noinline
2710ev_timer_again (EV_P_ ev_timer *w) 3701ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2711{ 3702{
2712 EV_FREQUENT_CHECK; 3703 EV_FREQUENT_CHECK;
3704
3705 clear_pending (EV_A_ (W)w);
2713 3706
2714 if (ev_is_active (w)) 3707 if (ev_is_active (w))
2715 { 3708 {
2716 if (w->repeat) 3709 if (w->repeat)
2717 { 3710 {
… …
2730 3723
2731 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
2732} 3725}
2733 3726
2734ev_tstamp 3727ev_tstamp
2735ev_timer_remaining (EV_P_ ev_timer *w) 3728ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2736{ 3729{
2737 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3730 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2738} 3731}
2739 3732
2740#if EV_PERIODIC_ENABLE 3733#if EV_PERIODIC_ENABLE
2741void noinline 3734void noinline
2742ev_periodic_start (EV_P_ ev_periodic *w) 3735ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2743{ 3736{
2744 if (expect_false (ev_is_active (w))) 3737 if (expect_false (ev_is_active (w)))
2745 return; 3738 return;
2746 3739
2747 if (w->reschedule_cb) 3740 if (w->reschedule_cb)
2748 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3741 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2749 else if (w->interval) 3742 else if (w->interval)
2750 { 3743 {
2751 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3744 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2752 /* this formula differs from the one in periodic_reify because we do not always round up */ 3745 periodic_recalc (EV_A_ w);
2753 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2754 } 3746 }
2755 else 3747 else
2756 ev_at (w) = w->offset; 3748 ev_at (w) = w->offset;
2757 3749
2758 EV_FREQUENT_CHECK; 3750 EV_FREQUENT_CHECK;
… …
2768 3760
2769 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3761 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2770} 3762}
2771 3763
2772void noinline 3764void noinline
2773ev_periodic_stop (EV_P_ ev_periodic *w) 3765ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2774{ 3766{
2775 clear_pending (EV_A_ (W)w); 3767 clear_pending (EV_A_ (W)w);
2776 if (expect_false (!ev_is_active (w))) 3768 if (expect_false (!ev_is_active (w)))
2777 return; 3769 return;
2778 3770
… …
2796 3788
2797 EV_FREQUENT_CHECK; 3789 EV_FREQUENT_CHECK;
2798} 3790}
2799 3791
2800void noinline 3792void noinline
2801ev_periodic_again (EV_P_ ev_periodic *w) 3793ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2802{ 3794{
2803 /* TODO: use adjustheap and recalculation */ 3795 /* TODO: use adjustheap and recalculation */
2804 ev_periodic_stop (EV_A_ w); 3796 ev_periodic_stop (EV_A_ w);
2805 ev_periodic_start (EV_A_ w); 3797 ev_periodic_start (EV_A_ w);
2806} 3798}
… …
2811#endif 3803#endif
2812 3804
2813#if EV_SIGNAL_ENABLE 3805#if EV_SIGNAL_ENABLE
2814 3806
2815void noinline 3807void noinline
2816ev_signal_start (EV_P_ ev_signal *w) 3808ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2817{ 3809{
2818 if (expect_false (ev_is_active (w))) 3810 if (expect_false (ev_is_active (w)))
2819 return; 3811 return;
2820 3812
2821 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3813 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2823#if EV_MULTIPLICITY 3815#if EV_MULTIPLICITY
2824 assert (("libev: a signal must not be attached to two different loops", 3816 assert (("libev: a signal must not be attached to two different loops",
2825 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3817 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2826 3818
2827 signals [w->signum - 1].loop = EV_A; 3819 signals [w->signum - 1].loop = EV_A;
3820 ECB_MEMORY_FENCE_RELEASE;
2828#endif 3821#endif
2829 3822
2830 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
2831 3824
2832#if EV_USE_SIGNALFD 3825#if EV_USE_SIGNALFD
… …
2879 sa.sa_handler = ev_sighandler; 3872 sa.sa_handler = ev_sighandler;
2880 sigfillset (&sa.sa_mask); 3873 sigfillset (&sa.sa_mask);
2881 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3874 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2882 sigaction (w->signum, &sa, 0); 3875 sigaction (w->signum, &sa, 0);
2883 3876
3877 if (origflags & EVFLAG_NOSIGMASK)
3878 {
2884 sigemptyset (&sa.sa_mask); 3879 sigemptyset (&sa.sa_mask);
2885 sigaddset (&sa.sa_mask, w->signum); 3880 sigaddset (&sa.sa_mask, w->signum);
2886 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3881 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3882 }
2887#endif 3883#endif
2888 } 3884 }
2889 3885
2890 EV_FREQUENT_CHECK; 3886 EV_FREQUENT_CHECK;
2891} 3887}
2892 3888
2893void noinline 3889void noinline
2894ev_signal_stop (EV_P_ ev_signal *w) 3890ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2895{ 3891{
2896 clear_pending (EV_A_ (W)w); 3892 clear_pending (EV_A_ (W)w);
2897 if (expect_false (!ev_is_active (w))) 3893 if (expect_false (!ev_is_active (w)))
2898 return; 3894 return;
2899 3895
… …
2930#endif 3926#endif
2931 3927
2932#if EV_CHILD_ENABLE 3928#if EV_CHILD_ENABLE
2933 3929
2934void 3930void
2935ev_child_start (EV_P_ ev_child *w) 3931ev_child_start (EV_P_ ev_child *w) EV_THROW
2936{ 3932{
2937#if EV_MULTIPLICITY 3933#if EV_MULTIPLICITY
2938 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3934 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2939#endif 3935#endif
2940 if (expect_false (ev_is_active (w))) 3936 if (expect_false (ev_is_active (w)))
… …
2947 3943
2948 EV_FREQUENT_CHECK; 3944 EV_FREQUENT_CHECK;
2949} 3945}
2950 3946
2951void 3947void
2952ev_child_stop (EV_P_ ev_child *w) 3948ev_child_stop (EV_P_ ev_child *w) EV_THROW
2953{ 3949{
2954 clear_pending (EV_A_ (W)w); 3950 clear_pending (EV_A_ (W)w);
2955 if (expect_false (!ev_is_active (w))) 3951 if (expect_false (!ev_is_active (w)))
2956 return; 3952 return;
2957 3953
… …
2984# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3980# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2985 3981
2986static void noinline 3982static void noinline
2987infy_add (EV_P_ ev_stat *w) 3983infy_add (EV_P_ ev_stat *w)
2988{ 3984{
2989 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); 3985 w->wd = inotify_add_watch (fs_fd, w->path,
3986 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3987 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3988 | IN_DONT_FOLLOW | IN_MASK_ADD);
2990 3989
2991 if (w->wd >= 0) 3990 if (w->wd >= 0)
2992 { 3991 {
2993 struct statfs sfs; 3992 struct statfs sfs;
2994 3993
… …
2998 3997
2999 if (!fs_2625) 3998 if (!fs_2625)
3000 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3999 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3001 else if (!statfs (w->path, &sfs) 4000 else if (!statfs (w->path, &sfs)
3002 && (sfs.f_type == 0x1373 /* devfs */ 4001 && (sfs.f_type == 0x1373 /* devfs */
4002 || sfs.f_type == 0x4006 /* fat */
4003 || sfs.f_type == 0x4d44 /* msdos */
3003 || sfs.f_type == 0xEF53 /* ext2/3 */ 4004 || sfs.f_type == 0xEF53 /* ext2/3 */
4005 || sfs.f_type == 0x72b6 /* jffs2 */
4006 || sfs.f_type == 0x858458f6 /* ramfs */
4007 || sfs.f_type == 0x5346544e /* ntfs */
3004 || sfs.f_type == 0x3153464a /* jfs */ 4008 || sfs.f_type == 0x3153464a /* jfs */
4009 || sfs.f_type == 0x9123683e /* btrfs */
3005 || sfs.f_type == 0x52654973 /* reiser3 */ 4010 || sfs.f_type == 0x52654973 /* reiser3 */
3006 || sfs.f_type == 0x01021994 /* tempfs */ 4011 || sfs.f_type == 0x01021994 /* tmpfs */
3007 || sfs.f_type == 0x58465342 /* xfs */)) 4012 || sfs.f_type == 0x58465342 /* xfs */))
3008 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4013 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3009 else 4014 else
3010 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4015 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3011 } 4016 }
… …
3032 if (!pend || pend == path) 4037 if (!pend || pend == path)
3033 break; 4038 break;
3034 4039
3035 *pend = 0; 4040 *pend = 0;
3036 w->wd = inotify_add_watch (fs_fd, path, mask); 4041 w->wd = inotify_add_watch (fs_fd, path, mask);
3037 } 4042 }
3038 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4043 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
3039 } 4044 }
3040 } 4045 }
3041 4046
3042 if (w->wd >= 0) 4047 if (w->wd >= 0)
… …
3109 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4114 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3110 ofs += sizeof (struct inotify_event) + ev->len; 4115 ofs += sizeof (struct inotify_event) + ev->len;
3111 } 4116 }
3112} 4117}
3113 4118
3114inline_size void 4119inline_size void ecb_cold
3115ev_check_2625 (EV_P) 4120ev_check_2625 (EV_P)
3116{ 4121{
3117 /* kernels < 2.6.25 are borked 4122 /* kernels < 2.6.25 are borked
3118 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4123 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3119 */ 4124 */
… …
3124} 4129}
3125 4130
3126inline_size int 4131inline_size int
3127infy_newfd (void) 4132infy_newfd (void)
3128{ 4133{
3129#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4134#if defined IN_CLOEXEC && defined IN_NONBLOCK
3130 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4135 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3131 if (fd >= 0) 4136 if (fd >= 0)
3132 return fd; 4137 return fd;
3133#endif 4138#endif
3134 return inotify_init (); 4139 return inotify_init ();
… …
3209#else 4214#else
3210# define EV_LSTAT(p,b) lstat (p, b) 4215# define EV_LSTAT(p,b) lstat (p, b)
3211#endif 4216#endif
3212 4217
3213void 4218void
3214ev_stat_stat (EV_P_ ev_stat *w) 4219ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3215{ 4220{
3216 if (lstat (w->path, &w->attr) < 0) 4221 if (lstat (w->path, &w->attr) < 0)
3217 w->attr.st_nlink = 0; 4222 w->attr.st_nlink = 0;
3218 else if (!w->attr.st_nlink) 4223 else if (!w->attr.st_nlink)
3219 w->attr.st_nlink = 1; 4224 w->attr.st_nlink = 1;
… …
3258 ev_feed_event (EV_A_ w, EV_STAT); 4263 ev_feed_event (EV_A_ w, EV_STAT);
3259 } 4264 }
3260} 4265}
3261 4266
3262void 4267void
3263ev_stat_start (EV_P_ ev_stat *w) 4268ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3264{ 4269{
3265 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3266 return; 4271 return;
3267 4272
3268 ev_stat_stat (EV_A_ w); 4273 ev_stat_stat (EV_A_ w);
… …
3289 4294
3290 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3291} 4296}
3292 4297
3293void 4298void
3294ev_stat_stop (EV_P_ ev_stat *w) 4299ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3295{ 4300{
3296 clear_pending (EV_A_ (W)w); 4301 clear_pending (EV_A_ (W)w);
3297 if (expect_false (!ev_is_active (w))) 4302 if (expect_false (!ev_is_active (w)))
3298 return; 4303 return;
3299 4304
… …
3315} 4320}
3316#endif 4321#endif
3317 4322
3318#if EV_IDLE_ENABLE 4323#if EV_IDLE_ENABLE
3319void 4324void
3320ev_idle_start (EV_P_ ev_idle *w) 4325ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3321{ 4326{
3322 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3323 return; 4328 return;
3324 4329
3325 pri_adjust (EV_A_ (W)w); 4330 pri_adjust (EV_A_ (W)w);
… …
3338 4343
3339 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3340} 4345}
3341 4346
3342void 4347void
3343ev_idle_stop (EV_P_ ev_idle *w) 4348ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3344{ 4349{
3345 clear_pending (EV_A_ (W)w); 4350 clear_pending (EV_A_ (W)w);
3346 if (expect_false (!ev_is_active (w))) 4351 if (expect_false (!ev_is_active (w)))
3347 return; 4352 return;
3348 4353
… …
3362} 4367}
3363#endif 4368#endif
3364 4369
3365#if EV_PREPARE_ENABLE 4370#if EV_PREPARE_ENABLE
3366void 4371void
3367ev_prepare_start (EV_P_ ev_prepare *w) 4372ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3368{ 4373{
3369 if (expect_false (ev_is_active (w))) 4374 if (expect_false (ev_is_active (w)))
3370 return; 4375 return;
3371 4376
3372 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
… …
3377 4382
3378 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
3379} 4384}
3380 4385
3381void 4386void
3382ev_prepare_stop (EV_P_ ev_prepare *w) 4387ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3383{ 4388{
3384 clear_pending (EV_A_ (W)w); 4389 clear_pending (EV_A_ (W)w);
3385 if (expect_false (!ev_is_active (w))) 4390 if (expect_false (!ev_is_active (w)))
3386 return; 4391 return;
3387 4392
… …
3400} 4405}
3401#endif 4406#endif
3402 4407
3403#if EV_CHECK_ENABLE 4408#if EV_CHECK_ENABLE
3404void 4409void
3405ev_check_start (EV_P_ ev_check *w) 4410ev_check_start (EV_P_ ev_check *w) EV_THROW
3406{ 4411{
3407 if (expect_false (ev_is_active (w))) 4412 if (expect_false (ev_is_active (w)))
3408 return; 4413 return;
3409 4414
3410 EV_FREQUENT_CHECK; 4415 EV_FREQUENT_CHECK;
… …
3415 4420
3416 EV_FREQUENT_CHECK; 4421 EV_FREQUENT_CHECK;
3417} 4422}
3418 4423
3419void 4424void
3420ev_check_stop (EV_P_ ev_check *w) 4425ev_check_stop (EV_P_ ev_check *w) EV_THROW
3421{ 4426{
3422 clear_pending (EV_A_ (W)w); 4427 clear_pending (EV_A_ (W)w);
3423 if (expect_false (!ev_is_active (w))) 4428 if (expect_false (!ev_is_active (w)))
3424 return; 4429 return;
3425 4430
… …
3438} 4443}
3439#endif 4444#endif
3440 4445
3441#if EV_EMBED_ENABLE 4446#if EV_EMBED_ENABLE
3442void noinline 4447void noinline
3443ev_embed_sweep (EV_P_ ev_embed *w) 4448ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3444{ 4449{
3445 ev_run (w->other, EVRUN_NOWAIT); 4450 ev_run (w->other, EVRUN_NOWAIT);
3446} 4451}
3447 4452
3448static void 4453static void
… …
3496 ev_idle_stop (EV_A_ idle); 4501 ev_idle_stop (EV_A_ idle);
3497} 4502}
3498#endif 4503#endif
3499 4504
3500void 4505void
3501ev_embed_start (EV_P_ ev_embed *w) 4506ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3502{ 4507{
3503 if (expect_false (ev_is_active (w))) 4508 if (expect_false (ev_is_active (w)))
3504 return; 4509 return;
3505 4510
3506 { 4511 {
… …
3527 4532
3528 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
3529} 4534}
3530 4535
3531void 4536void
3532ev_embed_stop (EV_P_ ev_embed *w) 4537ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3533{ 4538{
3534 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
3535 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
3536 return; 4541 return;
3537 4542
… …
3547} 4552}
3548#endif 4553#endif
3549 4554
3550#if EV_FORK_ENABLE 4555#if EV_FORK_ENABLE
3551void 4556void
3552ev_fork_start (EV_P_ ev_fork *w) 4557ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3553{ 4558{
3554 if (expect_false (ev_is_active (w))) 4559 if (expect_false (ev_is_active (w)))
3555 return; 4560 return;
3556 4561
3557 EV_FREQUENT_CHECK; 4562 EV_FREQUENT_CHECK;
… …
3562 4567
3563 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
3564} 4569}
3565 4570
3566void 4571void
3567ev_fork_stop (EV_P_ ev_fork *w) 4572ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3568{ 4573{
3569 clear_pending (EV_A_ (W)w); 4574 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 4575 if (expect_false (!ev_is_active (w)))
3571 return; 4576 return;
3572 4577
… …
3585} 4590}
3586#endif 4591#endif
3587 4592
3588#if EV_CLEANUP_ENABLE 4593#if EV_CLEANUP_ENABLE
3589void 4594void
3590ev_cleanup_start (EV_P_ ev_cleanup *w) 4595ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3591{ 4596{
3592 if (expect_false (ev_is_active (w))) 4597 if (expect_false (ev_is_active (w)))
3593 return; 4598 return;
3594 4599
3595 EV_FREQUENT_CHECK; 4600 EV_FREQUENT_CHECK;
… …
3602 ev_unref (EV_A); 4607 ev_unref (EV_A);
3603 EV_FREQUENT_CHECK; 4608 EV_FREQUENT_CHECK;
3604} 4609}
3605 4610
3606void 4611void
3607ev_cleanup_stop (EV_P_ ev_cleanup *w) 4612ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3608{ 4613{
3609 clear_pending (EV_A_ (W)w); 4614 clear_pending (EV_A_ (W)w);
3610 if (expect_false (!ev_is_active (w))) 4615 if (expect_false (!ev_is_active (w)))
3611 return; 4616 return;
3612 4617
… …
3626} 4631}
3627#endif 4632#endif
3628 4633
3629#if EV_ASYNC_ENABLE 4634#if EV_ASYNC_ENABLE
3630void 4635void
3631ev_async_start (EV_P_ ev_async *w) 4636ev_async_start (EV_P_ ev_async *w) EV_THROW
3632{ 4637{
3633 if (expect_false (ev_is_active (w))) 4638 if (expect_false (ev_is_active (w)))
3634 return; 4639 return;
3635 4640
3636 w->sent = 0; 4641 w->sent = 0;
… …
3645 4650
3646 EV_FREQUENT_CHECK; 4651 EV_FREQUENT_CHECK;
3647} 4652}
3648 4653
3649void 4654void
3650ev_async_stop (EV_P_ ev_async *w) 4655ev_async_stop (EV_P_ ev_async *w) EV_THROW
3651{ 4656{
3652 clear_pending (EV_A_ (W)w); 4657 clear_pending (EV_A_ (W)w);
3653 if (expect_false (!ev_is_active (w))) 4658 if (expect_false (!ev_is_active (w)))
3654 return; 4659 return;
3655 4660
… …
3666 4671
3667 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
3668} 4673}
3669 4674
3670void 4675void
3671ev_async_send (EV_P_ ev_async *w) 4676ev_async_send (EV_P_ ev_async *w) EV_THROW
3672{ 4677{
3673 w->sent = 1; 4678 w->sent = 1;
3674 evpipe_write (EV_A_ &async_pending); 4679 evpipe_write (EV_A_ &async_pending);
3675} 4680}
3676#endif 4681#endif
… …
3713 4718
3714 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4719 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3715} 4720}
3716 4721
3717void 4722void
3718ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4723ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3719{ 4724{
3720 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4725 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3721 4726
3722 if (expect_false (!once)) 4727 if (expect_false (!once))
3723 { 4728 {
… …
3744} 4749}
3745 4750
3746/*****************************************************************************/ 4751/*****************************************************************************/
3747 4752
3748#if EV_WALK_ENABLE 4753#if EV_WALK_ENABLE
3749void 4754void ecb_cold
3750ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4755ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3751{ 4756{
3752 int i, j; 4757 int i, j;
3753 ev_watcher_list *wl, *wn; 4758 ev_watcher_list *wl, *wn;
3754 4759
3755 if (types & (EV_IO | EV_EMBED)) 4760 if (types & (EV_IO | EV_EMBED))
… …
3798 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4803 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3799#endif 4804#endif
3800 4805
3801#if EV_IDLE_ENABLE 4806#if EV_IDLE_ENABLE
3802 if (types & EV_IDLE) 4807 if (types & EV_IDLE)
3803 for (j = NUMPRI; i--; ) 4808 for (j = NUMPRI; j--; )
3804 for (i = idlecnt [j]; i--; ) 4809 for (i = idlecnt [j]; i--; )
3805 cb (EV_A_ EV_IDLE, idles [j][i]); 4810 cb (EV_A_ EV_IDLE, idles [j][i]);
3806#endif 4811#endif
3807 4812
3808#if EV_FORK_ENABLE 4813#if EV_FORK_ENABLE
… …
3861 4866
3862#if EV_MULTIPLICITY 4867#if EV_MULTIPLICITY
3863 #include "ev_wrap.h" 4868 #include "ev_wrap.h"
3864#endif 4869#endif
3865 4870
3866EV_CPP(})
3867

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