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Comparing libev/ev.c (file contents):
Revision 1.390 by root, Thu Aug 4 11:58:02 2011 UTC vs.
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 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 *
… …
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 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_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
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* 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 */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
254#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 273# else
258# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
259# endif 275# endif
260#endif 276#endif
… …
347 363
348#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 366#endif
351 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 387# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
360# else 392# else
… …
363# endif 395# endif
364#endif 396#endif
365 397
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 399
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
377#endif 403#endif
378 404
… …
386# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
387#endif 413#endif
388 414
389#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 418# include <sys/select.h>
393# endif 419# endif
394#endif 420#endif
395 421
396#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
403# endif 429# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 430#endif
409 431
410#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 434# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 487
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 490
469/* the following are taken from libecb */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ecb.h start */ 492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
546 #if __GNUC__
547 typedef signed long long int64_t;
548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
562#else
563 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU
565 #define ECB_PTRSIZE 8
566 #else
567 #define ECB_PTRSIZE 4
568 #endif
569#endif
570
571/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
577 #endif
578#endif
471 579
472/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
475 * or so. 583 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have 584 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place. 585 * an issue with that they should have done it right in the first place.
478 */ 586 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 587#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481 #define ECB_GCC_VERSION(major,minor) 0 588 #define ECB_GCC_VERSION(major,minor) 0
482 #else 589#else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 590 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
591#endif
592
593#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
594
595#if __clang__ && defined __has_builtin
596 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
597#else
598 #define ECB_CLANG_BUILTIN(x) 0
599#endif
600
601#if __clang__ && defined __has_extension
602 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
603#else
604 #define ECB_CLANG_EXTENSION(x) 0
605#endif
606
607#define ECB_CPP (__cplusplus+0)
608#define ECB_CPP11 (__cplusplus >= 201103L)
609
610#if ECB_CPP
611 #define ECB_C 0
612 #define ECB_STDC_VERSION 0
613#else
614 #define ECB_C 1
615 #define ECB_STDC_VERSION __STDC_VERSION__
616#endif
617
618#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
619#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
620
621#if ECB_CPP
622 #define ECB_EXTERN_C extern "C"
623 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
624 #define ECB_EXTERN_C_END }
625#else
626 #define ECB_EXTERN_C extern
627 #define ECB_EXTERN_C_BEG
628 #define ECB_EXTERN_C_END
629#endif
630
631/*****************************************************************************/
632
633/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
634/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
635
636#if ECB_NO_THREADS
637 #define ECB_NO_SMP 1
638#endif
639
640#if ECB_NO_SMP
641 #define ECB_MEMORY_FENCE do { } while (0)
642#endif
643
644#ifndef ECB_MEMORY_FENCE
645 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
646 #if __i386 || __i386__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
648 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
649 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
650 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
652 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
653 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
654 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
656 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
657 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
659 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
660 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
662 #elif __aarch64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
664 #elif (__sparc || __sparc__) && !__sparcv8
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
668 #elif defined __s390__ || defined __s390x__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
670 #elif defined __mips__
671 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
672 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
674 #elif defined __alpha__
675 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
676 #elif defined __hppa__
677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
679 #elif defined __ia64__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
681 #elif defined __m68k__
682 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
683 #elif defined __m88k__
684 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
685 #elif defined __sh__
686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
687 #endif
484 #endif 688 #endif
485#endif 689#endif
486 690
487#if __cplusplus 691#ifndef ECB_MEMORY_FENCE
692 #if ECB_GCC_VERSION(4,7)
693 /* see comment below (stdatomic.h) about the C11 memory model. */
694 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
695 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
696 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
697
698 #elif ECB_CLANG_EXTENSION(c_atomic)
699 /* see comment below (stdatomic.h) about the C11 memory model. */
700 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
701 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
702 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
703
704 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
705 #define ECB_MEMORY_FENCE __sync_synchronize ()
706 #elif _MSC_VER >= 1500 /* VC++ 2008 */
707 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
708 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
709 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
710 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
711 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
712 #elif _MSC_VER >= 1400 /* VC++ 2005 */
713 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
714 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
715 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
716 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
717 #elif defined _WIN32
718 #include <WinNT.h>
719 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
720 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
721 #include <mbarrier.h>
722 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
723 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
724 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
725 #elif __xlC__
726 #define ECB_MEMORY_FENCE __sync ()
727 #endif
728#endif
729
730#ifndef ECB_MEMORY_FENCE
731 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
732 /* we assume that these memory fences work on all variables/all memory accesses, */
733 /* not just C11 atomics and atomic accesses */
734 #include <stdatomic.h>
735 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
736 /* any fence other than seq_cst, which isn't very efficient for us. */
737 /* Why that is, we don't know - either the C11 memory model is quite useless */
738 /* for most usages, or gcc and clang have a bug */
739 /* I *currently* lean towards the latter, and inefficiently implement */
740 /* all three of ecb's fences as a seq_cst fence */
741 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
742 /* for all __atomic_thread_fence's except seq_cst */
743 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
744 #endif
745#endif
746
747#ifndef ECB_MEMORY_FENCE
748 #if !ECB_AVOID_PTHREADS
749 /*
750 * if you get undefined symbol references to pthread_mutex_lock,
751 * or failure to find pthread.h, then you should implement
752 * the ECB_MEMORY_FENCE operations for your cpu/compiler
753 * OR provide pthread.h and link against the posix thread library
754 * of your system.
755 */
756 #include <pthread.h>
757 #define ECB_NEEDS_PTHREADS 1
758 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
759
760 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
761 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
762 #endif
763#endif
764
765#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
766 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
767#endif
768
769#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
770 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
771#endif
772
773/*****************************************************************************/
774
775#if ECB_CPP
488 #define ecb_inline static inline 776 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5) 777#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__ 778 #define ecb_inline static __inline__
491#elif ECB_C99 779#elif ECB_C99
492 #define ecb_inline static inline 780 #define ecb_inline static inline
493#else 781#else
494 #define ecb_inline static 782 #define ecb_inline static
495#endif 783#endif
496 784
497#ifndef ECB_MEMORY_FENCE
498 #if ECB_GCC_VERSION(2,5)
499 #if __x86
500 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
501 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
502 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */
503 #elif __amd64
504 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
505 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
506 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
507 #endif
508 #endif
509#endif
510
511#ifndef ECB_MEMORY_FENCE
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif _MSC_VER >= 1400 /* VC++ 2005 */
517 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
518 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
519 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
520 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
521 #elif defined(_WIN32)
522 #include <WinNT.h>
523 #define ECB_MEMORY_FENCE MemoryBarrier ()
524 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
525 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
526 #endif
527#endif
528
529#ifndef ECB_MEMORY_FENCE
530 #include <pthread.h>
531
532 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
533 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
534 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
535 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
536#endif
537
538#if ECB_GCC_VERSION(3,1) 785#if ECB_GCC_VERSION(3,3)
786 #define ecb_restrict __restrict__
787#elif ECB_C99
788 #define ecb_restrict restrict
789#else
790 #define ecb_restrict
791#endif
792
793typedef int ecb_bool;
794
795#define ECB_CONCAT_(a, b) a ## b
796#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
797#define ECB_STRINGIFY_(a) # a
798#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
799
800#define ecb_function_ ecb_inline
801
802#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
539 #define ecb_attribute(attrlist) __attribute__(attrlist) 803 #define ecb_attribute(attrlist) __attribute__ (attrlist)
804#else
805 #define ecb_attribute(attrlist)
806#endif
807
808#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
540 #define ecb_is_constant(expr) __builtin_constant_p (expr) 809 #define ecb_is_constant(expr) __builtin_constant_p (expr)
810#else
811 /* possible C11 impl for integral types
812 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
813 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
814
815 #define ecb_is_constant(expr) 0
816#endif
817
818#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
541 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 819 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
820#else
821 #define ecb_expect(expr,value) (expr)
822#endif
823
824#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
542 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 825 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
543#else 826#else
544 #define ecb_attribute(attrlist)
545 #define ecb_is_constant(expr) 0
546 #define ecb_expect(expr,value) (expr)
547 #define ecb_prefetch(addr,rw,locality) 827 #define ecb_prefetch(addr,rw,locality)
548#endif 828#endif
549 829
830/* no emulation for ecb_decltype */
831#if ECB_CPP11
832 // older implementations might have problems with decltype(x)::type, work around it
833 template<class T> struct ecb_decltype_t { typedef T type; };
834 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
835#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
836 #define ecb_decltype(x) __typeof__ (x)
837#endif
838
839#if _MSC_VER >= 1300
840 #define ecb_deprecated __declspec (deprecated)
841#else
842 #define ecb_deprecated ecb_attribute ((__deprecated__))
843#endif
844
550#define ecb_noinline ecb_attribute ((__noinline__)) 845#define ecb_noinline ecb_attribute ((__noinline__))
551#define ecb_noreturn ecb_attribute ((__noreturn__))
552#define ecb_unused ecb_attribute ((__unused__)) 846#define ecb_unused ecb_attribute ((__unused__))
553#define ecb_const ecb_attribute ((__const__)) 847#define ecb_const ecb_attribute ((__const__))
554#define ecb_pure ecb_attribute ((__pure__)) 848#define ecb_pure ecb_attribute ((__pure__))
849
850/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
851#if ECB_C11 || __IBMC_NORETURN
852 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
853 #define ecb_noreturn _Noreturn
854#else
855 #define ecb_noreturn ecb_attribute ((__noreturn__))
856#endif
555 857
556#if ECB_GCC_VERSION(4,3) 858#if ECB_GCC_VERSION(4,3)
557 #define ecb_artificial ecb_attribute ((__artificial__)) 859 #define ecb_artificial ecb_attribute ((__artificial__))
558 #define ecb_hot ecb_attribute ((__hot__)) 860 #define ecb_hot ecb_attribute ((__hot__))
559 #define ecb_cold ecb_attribute ((__cold__)) 861 #define ecb_cold ecb_attribute ((__cold__))
… …
566/* put around conditional expressions if you are very sure that the */ 868/* put around conditional expressions if you are very sure that the */
567/* expression is mostly true or mostly false. note that these return */ 869/* expression is mostly true or mostly false. note that these return */
568/* booleans, not the expression. */ 870/* booleans, not the expression. */
569#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) 871#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
570#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) 872#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
571/* ecb.h end */ 873/* for compatibility to the rest of the world */
874#define ecb_likely(expr) ecb_expect_true (expr)
875#define ecb_unlikely(expr) ecb_expect_false (expr)
876
877/* count trailing zero bits and count # of one bits */
878#if ECB_GCC_VERSION(3,4) \
879 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
880 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
881 && ECB_CLANG_BUILTIN(__builtin_popcount))
882 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
883 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
884 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
885 #define ecb_ctz32(x) __builtin_ctz (x)
886 #define ecb_ctz64(x) __builtin_ctzll (x)
887 #define ecb_popcount32(x) __builtin_popcount (x)
888 /* no popcountll */
889#else
890 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
891 ecb_function_ ecb_const int
892 ecb_ctz32 (uint32_t x)
893 {
894 int r = 0;
895
896 x &= ~x + 1; /* this isolates the lowest bit */
897
898#if ECB_branchless_on_i386
899 r += !!(x & 0xaaaaaaaa) << 0;
900 r += !!(x & 0xcccccccc) << 1;
901 r += !!(x & 0xf0f0f0f0) << 2;
902 r += !!(x & 0xff00ff00) << 3;
903 r += !!(x & 0xffff0000) << 4;
904#else
905 if (x & 0xaaaaaaaa) r += 1;
906 if (x & 0xcccccccc) r += 2;
907 if (x & 0xf0f0f0f0) r += 4;
908 if (x & 0xff00ff00) r += 8;
909 if (x & 0xffff0000) r += 16;
910#endif
911
912 return r;
913 }
914
915 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
916 ecb_function_ ecb_const int
917 ecb_ctz64 (uint64_t x)
918 {
919 int shift = x & 0xffffffffU ? 0 : 32;
920 return ecb_ctz32 (x >> shift) + shift;
921 }
922
923 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
924 ecb_function_ ecb_const int
925 ecb_popcount32 (uint32_t x)
926 {
927 x -= (x >> 1) & 0x55555555;
928 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
929 x = ((x >> 4) + x) & 0x0f0f0f0f;
930 x *= 0x01010101;
931
932 return x >> 24;
933 }
934
935 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
936 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
937 {
938 int r = 0;
939
940 if (x >> 16) { x >>= 16; r += 16; }
941 if (x >> 8) { x >>= 8; r += 8; }
942 if (x >> 4) { x >>= 4; r += 4; }
943 if (x >> 2) { x >>= 2; r += 2; }
944 if (x >> 1) { r += 1; }
945
946 return r;
947 }
948
949 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
950 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
951 {
952 int r = 0;
953
954 if (x >> 32) { x >>= 32; r += 32; }
955
956 return r + ecb_ld32 (x);
957 }
958#endif
959
960ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
961ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
962ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
963ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
964
965ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
966ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
967{
968 return ( (x * 0x0802U & 0x22110U)
969 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
970}
971
972ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
973ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
974{
975 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
976 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
977 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
978 x = ( x >> 8 ) | ( x << 8);
979
980 return x;
981}
982
983ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
984ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
985{
986 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
987 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
988 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
989 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
990 x = ( x >> 16 ) | ( x << 16);
991
992 return x;
993}
994
995/* popcount64 is only available on 64 bit cpus as gcc builtin */
996/* so for this version we are lazy */
997ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
998ecb_function_ ecb_const int
999ecb_popcount64 (uint64_t x)
1000{
1001 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
1002}
1003
1004ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
1005ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
1006ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
1007ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
1008ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
1009ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
1010ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
1011ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
1012
1013ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
1014ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
1015ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
1016ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1017ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1018ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1019ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1020ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1021
1022#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1023 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1024 #define ecb_bswap32(x) __builtin_bswap32 (x)
1025 #define ecb_bswap64(x) __builtin_bswap64 (x)
1026#else
1027 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1028 ecb_function_ ecb_const uint16_t
1029 ecb_bswap16 (uint16_t x)
1030 {
1031 return ecb_rotl16 (x, 8);
1032 }
1033
1034 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1035 ecb_function_ ecb_const uint32_t
1036 ecb_bswap32 (uint32_t x)
1037 {
1038 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1039 }
1040
1041 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1042 ecb_function_ ecb_const uint64_t
1043 ecb_bswap64 (uint64_t x)
1044 {
1045 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1046 }
1047#endif
1048
1049#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1050 #define ecb_unreachable() __builtin_unreachable ()
1051#else
1052 /* this seems to work fine, but gcc always emits a warning for it :/ */
1053 ecb_inline ecb_noreturn void ecb_unreachable (void);
1054 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1055#endif
1056
1057/* try to tell the compiler that some condition is definitely true */
1058#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1059
1060ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
1061ecb_inline ecb_const unsigned char
1062ecb_byteorder_helper (void)
1063{
1064 /* the union code still generates code under pressure in gcc, */
1065 /* but less than using pointers, and always seems to */
1066 /* successfully return a constant. */
1067 /* the reason why we have this horrible preprocessor mess */
1068 /* is to avoid it in all cases, at least on common architectures */
1069 /* or when using a recent enough gcc version (>= 4.6) */
1070#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1071 return 0x44;
1072#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1073 return 0x44;
1074#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1075 return 0x11;
1076#else
1077 union
1078 {
1079 uint32_t i;
1080 uint8_t c;
1081 } u = { 0x11223344 };
1082 return u.c;
1083#endif
1084}
1085
1086ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1087ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1088ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1089ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1090
1091#if ECB_GCC_VERSION(3,0) || ECB_C99
1092 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1093#else
1094 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1095#endif
1096
1097#if ECB_CPP
1098 template<typename T>
1099 static inline T ecb_div_rd (T val, T div)
1100 {
1101 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1102 }
1103 template<typename T>
1104 static inline T ecb_div_ru (T val, T div)
1105 {
1106 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1107 }
1108#else
1109 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1110 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1111#endif
1112
1113#if ecb_cplusplus_does_not_suck
1114 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1115 template<typename T, int N>
1116 static inline int ecb_array_length (const T (&arr)[N])
1117 {
1118 return N;
1119 }
1120#else
1121 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1122#endif
1123
1124/*******************************************************************************/
1125/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1126
1127/* basically, everything uses "ieee pure-endian" floating point numbers */
1128/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1129#if 0 \
1130 || __i386 || __i386__ \
1131 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1132 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1133 || defined __s390__ || defined __s390x__ \
1134 || defined __mips__ \
1135 || defined __alpha__ \
1136 || defined __hppa__ \
1137 || defined __ia64__ \
1138 || defined __m68k__ \
1139 || defined __m88k__ \
1140 || defined __sh__ \
1141 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1142 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1143 || defined __aarch64__
1144 #define ECB_STDFP 1
1145 #include <string.h> /* for memcpy */
1146#else
1147 #define ECB_STDFP 0
1148#endif
1149
1150#ifndef ECB_NO_LIBM
1151
1152 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1153
1154 /* only the oldest of old doesn't have this one. solaris. */
1155 #ifdef INFINITY
1156 #define ECB_INFINITY INFINITY
1157 #else
1158 #define ECB_INFINITY HUGE_VAL
1159 #endif
1160
1161 #ifdef NAN
1162 #define ECB_NAN NAN
1163 #else
1164 #define ECB_NAN ECB_INFINITY
1165 #endif
1166
1167 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1168 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1169 #else
1170 #define ecb_ldexpf(x,e) (float) ldexp ((x), (e))
1171 #endif
1172
1173 /* converts an ieee half/binary16 to a float */
1174 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1175 ecb_function_ ecb_const float
1176 ecb_binary16_to_float (uint16_t x)
1177 {
1178 int e = (x >> 10) & 0x1f;
1179 int m = x & 0x3ff;
1180 float r;
1181
1182 if (!e ) r = ecb_ldexpf (m , -24);
1183 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1184 else if (m ) r = ECB_NAN;
1185 else r = ECB_INFINITY;
1186
1187 return x & 0x8000 ? -r : r;
1188 }
1189
1190 /* convert a float to ieee single/binary32 */
1191 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1192 ecb_function_ ecb_const uint32_t
1193 ecb_float_to_binary32 (float x)
1194 {
1195 uint32_t r;
1196
1197 #if ECB_STDFP
1198 memcpy (&r, &x, 4);
1199 #else
1200 /* slow emulation, works for anything but -0 */
1201 uint32_t m;
1202 int e;
1203
1204 if (x == 0e0f ) return 0x00000000U;
1205 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1206 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1207 if (x != x ) return 0x7fbfffffU;
1208
1209 m = frexpf (x, &e) * 0x1000000U;
1210
1211 r = m & 0x80000000U;
1212
1213 if (r)
1214 m = -m;
1215
1216 if (e <= -126)
1217 {
1218 m &= 0xffffffU;
1219 m >>= (-125 - e);
1220 e = -126;
1221 }
1222
1223 r |= (e + 126) << 23;
1224 r |= m & 0x7fffffU;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* converts an ieee single/binary32 to a float */
1231 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1232 ecb_function_ ecb_const float
1233 ecb_binary32_to_float (uint32_t x)
1234 {
1235 float r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 4);
1239 #else
1240 /* emulation, only works for normals and subnormals and +0 */
1241 int neg = x >> 31;
1242 int e = (x >> 23) & 0xffU;
1243
1244 x &= 0x7fffffU;
1245
1246 if (e)
1247 x |= 0x800000U;
1248 else
1249 e = 1;
1250
1251 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1252 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1253
1254 r = neg ? -r : r;
1255 #endif
1256
1257 return r;
1258 }
1259
1260 /* convert a double to ieee double/binary64 */
1261 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1262 ecb_function_ ecb_const uint64_t
1263 ecb_double_to_binary64 (double x)
1264 {
1265 uint64_t r;
1266
1267 #if ECB_STDFP
1268 memcpy (&r, &x, 8);
1269 #else
1270 /* slow emulation, works for anything but -0 */
1271 uint64_t m;
1272 int e;
1273
1274 if (x == 0e0 ) return 0x0000000000000000U;
1275 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1276 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1277 if (x != x ) return 0X7ff7ffffffffffffU;
1278
1279 m = frexp (x, &e) * 0x20000000000000U;
1280
1281 r = m & 0x8000000000000000;;
1282
1283 if (r)
1284 m = -m;
1285
1286 if (e <= -1022)
1287 {
1288 m &= 0x1fffffffffffffU;
1289 m >>= (-1021 - e);
1290 e = -1022;
1291 }
1292
1293 r |= ((uint64_t)(e + 1022)) << 52;
1294 r |= m & 0xfffffffffffffU;
1295 #endif
1296
1297 return r;
1298 }
1299
1300 /* converts an ieee double/binary64 to a double */
1301 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1302 ecb_function_ ecb_const double
1303 ecb_binary64_to_double (uint64_t x)
1304 {
1305 double r;
1306
1307 #if ECB_STDFP
1308 memcpy (&r, &x, 8);
1309 #else
1310 /* emulation, only works for normals and subnormals and +0 */
1311 int neg = x >> 63;
1312 int e = (x >> 52) & 0x7ffU;
1313
1314 x &= 0xfffffffffffffU;
1315
1316 if (e)
1317 x |= 0x10000000000000U;
1318 else
1319 e = 1;
1320
1321 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1322 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1323
1324 r = neg ? -r : r;
1325 #endif
1326
1327 return r;
1328 }
1329
1330#endif
1331
1332#endif
1333
1334/* ECB.H END */
1335
1336#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1337/* if your architecture doesn't need memory fences, e.g. because it is
1338 * single-cpu/core, or if you use libev in a project that doesn't use libev
1339 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1340 * libev, in which cases the memory fences become nops.
1341 * alternatively, you can remove this #error and link against libpthread,
1342 * which will then provide the memory fences.
1343 */
1344# error "memory fences not defined for your architecture, please report"
1345#endif
1346
1347#ifndef ECB_MEMORY_FENCE
1348# define ECB_MEMORY_FENCE do { } while (0)
1349# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1350# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1351#endif
572 1352
573#define expect_false(cond) ecb_expect_false (cond) 1353#define expect_false(cond) ecb_expect_false (cond)
574#define expect_true(cond) ecb_expect_true (cond) 1354#define expect_true(cond) ecb_expect_true (cond)
575#define noinline ecb_noinline 1355#define noinline ecb_noinline
576 1356
… …
722{ 1502{
723 write (STDERR_FILENO, msg, strlen (msg)); 1503 write (STDERR_FILENO, msg, strlen (msg));
724} 1504}
725#endif 1505#endif
726 1506
727static void (*syserr_cb)(const char *msg); 1507static void (*syserr_cb)(const char *msg) EV_THROW;
728 1508
729void ecb_cold 1509void ecb_cold
730ev_set_syserr_cb (void (*cb)(const char *msg)) 1510ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
731{ 1511{
732 syserr_cb = cb; 1512 syserr_cb = cb;
733} 1513}
734 1514
735static void noinline ecb_cold 1515static void noinline ecb_cold
… …
753 abort (); 1533 abort ();
754 } 1534 }
755} 1535}
756 1536
757static void * 1537static void *
758ev_realloc_emul (void *ptr, long size) 1538ev_realloc_emul (void *ptr, long size) EV_THROW
759{ 1539{
760#if __GLIBC__
761 return realloc (ptr, size);
762#else
763 /* some systems, notably openbsd and darwin, fail to properly 1540 /* some systems, notably openbsd and darwin, fail to properly
764 * implement realloc (x, 0) (as required by both ansi c-89 and 1541 * implement realloc (x, 0) (as required by both ansi c-89 and
765 * the single unix specification, so work around them here. 1542 * the single unix specification, so work around them here.
1543 * recently, also (at least) fedora and debian started breaking it,
1544 * despite documenting it otherwise.
766 */ 1545 */
767 1546
768 if (size) 1547 if (size)
769 return realloc (ptr, size); 1548 return realloc (ptr, size);
770 1549
771 free (ptr); 1550 free (ptr);
772 return 0; 1551 return 0;
773#endif
774} 1552}
775 1553
776static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1554static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
777 1555
778void ecb_cold 1556void ecb_cold
779ev_set_allocator (void *(*cb)(void *ptr, long size)) 1557ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
780{ 1558{
781 alloc = cb; 1559 alloc = cb;
782} 1560}
783 1561
784inline_speed void * 1562inline_speed void *
… …
872 #undef VAR 1650 #undef VAR
873 }; 1651 };
874 #include "ev_wrap.h" 1652 #include "ev_wrap.h"
875 1653
876 static struct ev_loop default_loop_struct; 1654 static struct ev_loop default_loop_struct;
877 struct ev_loop *ev_default_loop_ptr; 1655 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
878 1656
879#else 1657#else
880 1658
881 ev_tstamp ev_rt_now; 1659 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
882 #define VAR(name,decl) static decl; 1660 #define VAR(name,decl) static decl;
883 #include "ev_vars.h" 1661 #include "ev_vars.h"
884 #undef VAR 1662 #undef VAR
885 1663
886 static int ev_default_loop_ptr; 1664 static int ev_default_loop_ptr;
… …
901 1679
902/*****************************************************************************/ 1680/*****************************************************************************/
903 1681
904#ifndef EV_HAVE_EV_TIME 1682#ifndef EV_HAVE_EV_TIME
905ev_tstamp 1683ev_tstamp
906ev_time (void) 1684ev_time (void) EV_THROW
907{ 1685{
908#if EV_USE_REALTIME 1686#if EV_USE_REALTIME
909 if (expect_true (have_realtime)) 1687 if (expect_true (have_realtime))
910 { 1688 {
911 struct timespec ts; 1689 struct timespec ts;
… …
935 return ev_time (); 1713 return ev_time ();
936} 1714}
937 1715
938#if EV_MULTIPLICITY 1716#if EV_MULTIPLICITY
939ev_tstamp 1717ev_tstamp
940ev_now (EV_P) 1718ev_now (EV_P) EV_THROW
941{ 1719{
942 return ev_rt_now; 1720 return ev_rt_now;
943} 1721}
944#endif 1722#endif
945 1723
946void 1724void
947ev_sleep (ev_tstamp delay) 1725ev_sleep (ev_tstamp delay) EV_THROW
948{ 1726{
949 if (delay > 0.) 1727 if (delay > 0.)
950 { 1728 {
951#if EV_USE_NANOSLEEP 1729#if EV_USE_NANOSLEEP
952 struct timespec ts; 1730 struct timespec ts;
953 1731
954 EV_TS_SET (ts, delay); 1732 EV_TS_SET (ts, delay);
955 nanosleep (&ts, 0); 1733 nanosleep (&ts, 0);
956#elif defined(_WIN32) 1734#elif defined _WIN32
957 Sleep ((unsigned long)(delay * 1e3)); 1735 Sleep ((unsigned long)(delay * 1e3));
958#else 1736#else
959 struct timeval tv; 1737 struct timeval tv;
960 1738
961 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1739 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
980 1758
981 do 1759 do
982 ncur <<= 1; 1760 ncur <<= 1;
983 while (cnt > ncur); 1761 while (cnt > ncur);
984 1762
985 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1763 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
986 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1764 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
987 { 1765 {
988 ncur *= elem; 1766 ncur *= elem;
989 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1767 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
990 ncur = ncur - sizeof (void *) * 4; 1768 ncur = ncur - sizeof (void *) * 4;
… …
1033pendingcb (EV_P_ ev_prepare *w, int revents) 1811pendingcb (EV_P_ ev_prepare *w, int revents)
1034{ 1812{
1035} 1813}
1036 1814
1037void noinline 1815void noinline
1038ev_feed_event (EV_P_ void *w, int revents) 1816ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1039{ 1817{
1040 W w_ = (W)w; 1818 W w_ = (W)w;
1041 int pri = ABSPRI (w_); 1819 int pri = ABSPRI (w_);
1042 1820
1043 if (expect_false (w_->pending)) 1821 if (expect_false (w_->pending))
… …
1047 w_->pending = ++pendingcnt [pri]; 1825 w_->pending = ++pendingcnt [pri];
1048 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1826 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1049 pendings [pri][w_->pending - 1].w = w_; 1827 pendings [pri][w_->pending - 1].w = w_;
1050 pendings [pri][w_->pending - 1].events = revents; 1828 pendings [pri][w_->pending - 1].events = revents;
1051 } 1829 }
1830
1831 pendingpri = NUMPRI - 1;
1052} 1832}
1053 1833
1054inline_speed void 1834inline_speed void
1055feed_reverse (EV_P_ W w) 1835feed_reverse (EV_P_ W w)
1056{ 1836{
… …
1102 if (expect_true (!anfd->reify)) 1882 if (expect_true (!anfd->reify))
1103 fd_event_nocheck (EV_A_ fd, revents); 1883 fd_event_nocheck (EV_A_ fd, revents);
1104} 1884}
1105 1885
1106void 1886void
1107ev_feed_fd_event (EV_P_ int fd, int revents) 1887ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1108{ 1888{
1109 if (fd >= 0 && fd < anfdmax) 1889 if (fd >= 0 && fd < anfdmax)
1110 fd_event_nocheck (EV_A_ fd, revents); 1890 fd_event_nocheck (EV_A_ fd, revents);
1111} 1891}
1112 1892
… …
1431static void noinline ecb_cold 2211static void noinline ecb_cold
1432evpipe_init (EV_P) 2212evpipe_init (EV_P)
1433{ 2213{
1434 if (!ev_is_active (&pipe_w)) 2214 if (!ev_is_active (&pipe_w))
1435 { 2215 {
2216 int fds [2];
2217
1436# if EV_USE_EVENTFD 2218# if EV_USE_EVENTFD
2219 fds [0] = -1;
1437 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2220 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1438 if (evfd < 0 && errno == EINVAL) 2221 if (fds [1] < 0 && errno == EINVAL)
1439 evfd = eventfd (0, 0); 2222 fds [1] = eventfd (0, 0);
1440 2223
1441 if (evfd >= 0) 2224 if (fds [1] < 0)
2225# endif
1442 { 2226 {
2227 while (pipe (fds))
2228 ev_syserr ("(libev) error creating signal/async pipe");
2229
2230 fd_intern (fds [0]);
2231 }
2232
1443 evpipe [0] = -1; 2233 evpipe [0] = fds [0];
1444 fd_intern (evfd); /* doing it twice doesn't hurt */ 2234
1445 ev_io_set (&pipe_w, evfd, EV_READ); 2235 if (evpipe [1] < 0)
2236 evpipe [1] = fds [1]; /* first call, set write fd */
2237 else
2238 {
2239 /* on subsequent calls, do not change evpipe [1] */
2240 /* so that evpipe_write can always rely on its value. */
2241 /* this branch does not do anything sensible on windows, */
2242 /* so must not be executed on windows */
2243
2244 dup2 (fds [1], evpipe [1]);
2245 close (fds [1]);
2246 }
2247
2248 fd_intern (evpipe [1]);
2249
2250 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2251 ev_io_start (EV_A_ &pipe_w);
2252 ev_unref (EV_A); /* watcher should not keep loop alive */
2253 }
2254}
2255
2256inline_speed void
2257evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2258{
2259 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2260
2261 if (expect_true (*flag))
2262 return;
2263
2264 *flag = 1;
2265 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2266
2267 pipe_write_skipped = 1;
2268
2269 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2270
2271 if (pipe_write_wanted)
2272 {
2273 int old_errno;
2274
2275 pipe_write_skipped = 0;
2276 ECB_MEMORY_FENCE_RELEASE;
2277
2278 old_errno = errno; /* save errno because write will clobber it */
2279
2280#if EV_USE_EVENTFD
2281 if (evpipe [0] < 0)
2282 {
2283 uint64_t counter = 1;
2284 write (evpipe [1], &counter, sizeof (uint64_t));
1446 } 2285 }
1447 else 2286 else
1448# endif 2287#endif
1449 { 2288 {
1450 while (pipe (evpipe)) 2289#ifdef _WIN32
1451 ev_syserr ("(libev) error creating signal/async pipe"); 2290 WSABUF buf;
1452 2291 DWORD sent;
1453 fd_intern (evpipe [0]); 2292 buf.buf = &buf;
1454 fd_intern (evpipe [1]); 2293 buf.len = 1;
1455 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2294 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1456 } 2295#else
1457
1458 ev_io_start (EV_A_ &pipe_w);
1459 ev_unref (EV_A); /* watcher should not keep loop alive */
1460 }
1461}
1462
1463inline_speed void
1464evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1465{
1466 if (expect_true (*flag))
1467 return;
1468
1469 *flag = 1;
1470
1471 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1472
1473 pipe_write_skipped = 1;
1474
1475 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1476
1477 if (pipe_write_wanted)
1478 {
1479 int old_errno;
1480
1481 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1482
1483 old_errno = errno; /* save errno because write will clobber it */
1484
1485#if EV_USE_EVENTFD
1486 if (evfd >= 0)
1487 {
1488 uint64_t counter = 1;
1489 write (evfd, &counter, sizeof (uint64_t));
1490 }
1491 else
1492#endif
1493 {
1494 /* win32 people keep sending patches that change this write() to send() */
1495 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1496 /* so when you think this write should be a send instead, please find out */
1497 /* where your send() is from - it's definitely not the microsoft send, and */
1498 /* tell me. thank you. */
1499 write (evpipe [1], &(evpipe [1]), 1); 2296 write (evpipe [1], &(evpipe [1]), 1);
2297#endif
1500 } 2298 }
1501 2299
1502 errno = old_errno; 2300 errno = old_errno;
1503 } 2301 }
1504} 2302}
… …
1511 int i; 2309 int i;
1512 2310
1513 if (revents & EV_READ) 2311 if (revents & EV_READ)
1514 { 2312 {
1515#if EV_USE_EVENTFD 2313#if EV_USE_EVENTFD
1516 if (evfd >= 0) 2314 if (evpipe [0] < 0)
1517 { 2315 {
1518 uint64_t counter; 2316 uint64_t counter;
1519 read (evfd, &counter, sizeof (uint64_t)); 2317 read (evpipe [1], &counter, sizeof (uint64_t));
1520 } 2318 }
1521 else 2319 else
1522#endif 2320#endif
1523 { 2321 {
1524 char dummy; 2322 char dummy[4];
1525 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2323#ifdef _WIN32
2324 WSABUF buf;
2325 DWORD recvd;
2326 DWORD flags = 0;
2327 buf.buf = dummy;
2328 buf.len = sizeof (dummy);
2329 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2330#else
1526 read (evpipe [0], &dummy, 1); 2331 read (evpipe [0], &dummy, sizeof (dummy));
2332#endif
1527 } 2333 }
1528 } 2334 }
1529 2335
1530 pipe_write_skipped = 0; 2336 pipe_write_skipped = 0;
2337
2338 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1531 2339
1532#if EV_SIGNAL_ENABLE 2340#if EV_SIGNAL_ENABLE
1533 if (sig_pending) 2341 if (sig_pending)
1534 { 2342 {
1535 sig_pending = 0; 2343 sig_pending = 0;
2344
2345 ECB_MEMORY_FENCE;
1536 2346
1537 for (i = EV_NSIG - 1; i--; ) 2347 for (i = EV_NSIG - 1; i--; )
1538 if (expect_false (signals [i].pending)) 2348 if (expect_false (signals [i].pending))
1539 ev_feed_signal_event (EV_A_ i + 1); 2349 ev_feed_signal_event (EV_A_ i + 1);
1540 } 2350 }
… …
1542 2352
1543#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1544 if (async_pending) 2354 if (async_pending)
1545 { 2355 {
1546 async_pending = 0; 2356 async_pending = 0;
2357
2358 ECB_MEMORY_FENCE;
1547 2359
1548 for (i = asynccnt; i--; ) 2360 for (i = asynccnt; i--; )
1549 if (asyncs [i]->sent) 2361 if (asyncs [i]->sent)
1550 { 2362 {
1551 asyncs [i]->sent = 0; 2363 asyncs [i]->sent = 0;
2364 ECB_MEMORY_FENCE_RELEASE;
1552 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2365 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1553 } 2366 }
1554 } 2367 }
1555#endif 2368#endif
1556} 2369}
1557 2370
1558/*****************************************************************************/ 2371/*****************************************************************************/
1559 2372
1560void 2373void
1561ev_feed_signal (int signum) 2374ev_feed_signal (int signum) EV_THROW
1562{ 2375{
1563#if EV_MULTIPLICITY 2376#if EV_MULTIPLICITY
2377 EV_P;
2378 ECB_MEMORY_FENCE_ACQUIRE;
1564 EV_P = signals [signum - 1].loop; 2379 EV_A = signals [signum - 1].loop;
1565 2380
1566 if (!EV_A) 2381 if (!EV_A)
1567 return; 2382 return;
1568#endif 2383#endif
1569 2384
1570 if (!ev_active (&pipe_w))
1571 return;
1572
1573 signals [signum - 1].pending = 1; 2385 signals [signum - 1].pending = 1;
1574 evpipe_write (EV_A_ &sig_pending); 2386 evpipe_write (EV_A_ &sig_pending);
1575} 2387}
1576 2388
1577static void 2389static void
… …
1583 2395
1584 ev_feed_signal (signum); 2396 ev_feed_signal (signum);
1585} 2397}
1586 2398
1587void noinline 2399void noinline
1588ev_feed_signal_event (EV_P_ int signum) 2400ev_feed_signal_event (EV_P_ int signum) EV_THROW
1589{ 2401{
1590 WL w; 2402 WL w;
1591 2403
1592 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2404 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1593 return; 2405 return;
1594 2406
1595 --signum; 2407 --signum;
1596 2408
1597#if EV_MULTIPLICITY 2409#if EV_MULTIPLICITY
… …
1601 if (expect_false (signals [signum].loop != EV_A)) 2413 if (expect_false (signals [signum].loop != EV_A))
1602 return; 2414 return;
1603#endif 2415#endif
1604 2416
1605 signals [signum].pending = 0; 2417 signals [signum].pending = 0;
2418 ECB_MEMORY_FENCE_RELEASE;
1606 2419
1607 for (w = signals [signum].head; w; w = w->next) 2420 for (w = signals [signum].head; w; w = w->next)
1608 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2421 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1609} 2422}
1610 2423
… …
1709#if EV_USE_SELECT 2522#if EV_USE_SELECT
1710# include "ev_select.c" 2523# include "ev_select.c"
1711#endif 2524#endif
1712 2525
1713int ecb_cold 2526int ecb_cold
1714ev_version_major (void) 2527ev_version_major (void) EV_THROW
1715{ 2528{
1716 return EV_VERSION_MAJOR; 2529 return EV_VERSION_MAJOR;
1717} 2530}
1718 2531
1719int ecb_cold 2532int ecb_cold
1720ev_version_minor (void) 2533ev_version_minor (void) EV_THROW
1721{ 2534{
1722 return EV_VERSION_MINOR; 2535 return EV_VERSION_MINOR;
1723} 2536}
1724 2537
1725/* return true if we are running with elevated privileges and should ignore env variables */ 2538/* return true if we are running with elevated privileges and should ignore env variables */
… …
1733 || getgid () != getegid (); 2546 || getgid () != getegid ();
1734#endif 2547#endif
1735} 2548}
1736 2549
1737unsigned int ecb_cold 2550unsigned int ecb_cold
1738ev_supported_backends (void) 2551ev_supported_backends (void) EV_THROW
1739{ 2552{
1740 unsigned int flags = 0; 2553 unsigned int flags = 0;
1741 2554
1742 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2555 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1743 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2556 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1747 2560
1748 return flags; 2561 return flags;
1749} 2562}
1750 2563
1751unsigned int ecb_cold 2564unsigned int ecb_cold
1752ev_recommended_backends (void) 2565ev_recommended_backends (void) EV_THROW
1753{ 2566{
1754 unsigned int flags = ev_supported_backends (); 2567 unsigned int flags = ev_supported_backends ();
1755 2568
1756#ifndef __NetBSD__ 2569#ifndef __NetBSD__
1757 /* kqueue is borked on everything but netbsd apparently */ 2570 /* kqueue is borked on everything but netbsd apparently */
… …
1769 2582
1770 return flags; 2583 return flags;
1771} 2584}
1772 2585
1773unsigned int ecb_cold 2586unsigned int ecb_cold
1774ev_embeddable_backends (void) 2587ev_embeddable_backends (void) EV_THROW
1775{ 2588{
1776 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2589 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1777 2590
1778 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2591 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1779 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2592 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1781 2594
1782 return flags; 2595 return flags;
1783} 2596}
1784 2597
1785unsigned int 2598unsigned int
1786ev_backend (EV_P) 2599ev_backend (EV_P) EV_THROW
1787{ 2600{
1788 return backend; 2601 return backend;
1789} 2602}
1790 2603
1791#if EV_FEATURE_API 2604#if EV_FEATURE_API
1792unsigned int 2605unsigned int
1793ev_iteration (EV_P) 2606ev_iteration (EV_P) EV_THROW
1794{ 2607{
1795 return loop_count; 2608 return loop_count;
1796} 2609}
1797 2610
1798unsigned int 2611unsigned int
1799ev_depth (EV_P) 2612ev_depth (EV_P) EV_THROW
1800{ 2613{
1801 return loop_depth; 2614 return loop_depth;
1802} 2615}
1803 2616
1804void 2617void
1805ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2618ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1806{ 2619{
1807 io_blocktime = interval; 2620 io_blocktime = interval;
1808} 2621}
1809 2622
1810void 2623void
1811ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2624ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1812{ 2625{
1813 timeout_blocktime = interval; 2626 timeout_blocktime = interval;
1814} 2627}
1815 2628
1816void 2629void
1817ev_set_userdata (EV_P_ void *data) 2630ev_set_userdata (EV_P_ void *data) EV_THROW
1818{ 2631{
1819 userdata = data; 2632 userdata = data;
1820} 2633}
1821 2634
1822void * 2635void *
1823ev_userdata (EV_P) 2636ev_userdata (EV_P) EV_THROW
1824{ 2637{
1825 return userdata; 2638 return userdata;
1826} 2639}
1827 2640
1828void 2641void
1829ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2642ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1830{ 2643{
1831 invoke_cb = invoke_pending_cb; 2644 invoke_cb = invoke_pending_cb;
1832} 2645}
1833 2646
1834void 2647void
1835ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2648ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1836{ 2649{
1837 release_cb = release; 2650 release_cb = release;
1838 acquire_cb = acquire; 2651 acquire_cb = acquire;
1839} 2652}
1840#endif 2653#endif
1841 2654
1842/* initialise a loop structure, must be zero-initialised */ 2655/* initialise a loop structure, must be zero-initialised */
1843static void noinline ecb_cold 2656static void noinline ecb_cold
1844loop_init (EV_P_ unsigned int flags) 2657loop_init (EV_P_ unsigned int flags) EV_THROW
1845{ 2658{
1846 if (!backend) 2659 if (!backend)
1847 { 2660 {
1848 origflags = flags; 2661 origflags = flags;
1849 2662
… …
1894#if EV_ASYNC_ENABLE 2707#if EV_ASYNC_ENABLE
1895 async_pending = 0; 2708 async_pending = 0;
1896#endif 2709#endif
1897 pipe_write_skipped = 0; 2710 pipe_write_skipped = 0;
1898 pipe_write_wanted = 0; 2711 pipe_write_wanted = 0;
2712 evpipe [0] = -1;
2713 evpipe [1] = -1;
1899#if EV_USE_INOTIFY 2714#if EV_USE_INOTIFY
1900 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1901#endif 2716#endif
1902#if EV_USE_SIGNALFD 2717#if EV_USE_SIGNALFD
1903 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1954 EV_INVOKE_PENDING; 2769 EV_INVOKE_PENDING;
1955 } 2770 }
1956#endif 2771#endif
1957 2772
1958#if EV_CHILD_ENABLE 2773#if EV_CHILD_ENABLE
1959 if (ev_is_active (&childev)) 2774 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1960 { 2775 {
1961 ev_ref (EV_A); /* child watcher */ 2776 ev_ref (EV_A); /* child watcher */
1962 ev_signal_stop (EV_A_ &childev); 2777 ev_signal_stop (EV_A_ &childev);
1963 } 2778 }
1964#endif 2779#endif
… …
1966 if (ev_is_active (&pipe_w)) 2781 if (ev_is_active (&pipe_w))
1967 { 2782 {
1968 /*ev_ref (EV_A);*/ 2783 /*ev_ref (EV_A);*/
1969 /*ev_io_stop (EV_A_ &pipe_w);*/ 2784 /*ev_io_stop (EV_A_ &pipe_w);*/
1970 2785
1971#if EV_USE_EVENTFD
1972 if (evfd >= 0)
1973 close (evfd);
1974#endif
1975
1976 if (evpipe [0] >= 0)
1977 {
1978 EV_WIN32_CLOSE_FD (evpipe [0]); 2786 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1979 EV_WIN32_CLOSE_FD (evpipe [1]); 2787 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1980 }
1981 } 2788 }
1982 2789
1983#if EV_USE_SIGNALFD 2790#if EV_USE_SIGNALFD
1984 if (ev_is_active (&sigfd_w)) 2791 if (ev_is_active (&sigfd_w))
1985 close (sigfd); 2792 close (sigfd);
… …
2071#endif 2878#endif
2072#if EV_USE_INOTIFY 2879#if EV_USE_INOTIFY
2073 infy_fork (EV_A); 2880 infy_fork (EV_A);
2074#endif 2881#endif
2075 2882
2883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2076 if (ev_is_active (&pipe_w)) 2884 if (ev_is_active (&pipe_w))
2077 { 2885 {
2078 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2886 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2079 2887
2080 ev_ref (EV_A); 2888 ev_ref (EV_A);
2081 ev_io_stop (EV_A_ &pipe_w); 2889 ev_io_stop (EV_A_ &pipe_w);
2082 2890
2083#if EV_USE_EVENTFD
2084 if (evfd >= 0)
2085 close (evfd);
2086#endif
2087
2088 if (evpipe [0] >= 0) 2891 if (evpipe [0] >= 0)
2089 {
2090 EV_WIN32_CLOSE_FD (evpipe [0]); 2892 EV_WIN32_CLOSE_FD (evpipe [0]);
2091 EV_WIN32_CLOSE_FD (evpipe [1]);
2092 }
2093 2893
2094#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2095 evpipe_init (EV_A); 2894 evpipe_init (EV_A);
2096 /* now iterate over everything, in case we missed something */ 2895 /* iterate over everything, in case we missed something before */
2097 pipecb (EV_A_ &pipe_w, EV_READ); 2896 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2098#endif
2099 } 2897 }
2898#endif
2100 2899
2101 postfork = 0; 2900 postfork = 0;
2102} 2901}
2103 2902
2104#if EV_MULTIPLICITY 2903#if EV_MULTIPLICITY
2105 2904
2106struct ev_loop * ecb_cold 2905struct ev_loop * ecb_cold
2107ev_loop_new (unsigned int flags) 2906ev_loop_new (unsigned int flags) EV_THROW
2108{ 2907{
2109 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2908 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2110 2909
2111 memset (EV_A, 0, sizeof (struct ev_loop)); 2910 memset (EV_A, 0, sizeof (struct ev_loop));
2112 loop_init (EV_A_ flags); 2911 loop_init (EV_A_ flags);
… …
2156} 2955}
2157#endif 2956#endif
2158 2957
2159#if EV_FEATURE_API 2958#if EV_FEATURE_API
2160void ecb_cold 2959void ecb_cold
2161ev_verify (EV_P) 2960ev_verify (EV_P) EV_THROW
2162{ 2961{
2163#if EV_VERIFY 2962#if EV_VERIFY
2164 int i; 2963 int i;
2165 WL w; 2964 WL w, w2;
2166 2965
2167 assert (activecnt >= -1); 2966 assert (activecnt >= -1);
2168 2967
2169 assert (fdchangemax >= fdchangecnt); 2968 assert (fdchangemax >= fdchangecnt);
2170 for (i = 0; i < fdchangecnt; ++i) 2969 for (i = 0; i < fdchangecnt; ++i)
2171 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2970 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2172 2971
2173 assert (anfdmax >= 0); 2972 assert (anfdmax >= 0);
2174 for (i = 0; i < anfdmax; ++i) 2973 for (i = 0; i < anfdmax; ++i)
2974 {
2975 int j = 0;
2976
2175 for (w = anfds [i].head; w; w = w->next) 2977 for (w = w2 = anfds [i].head; w; w = w->next)
2176 { 2978 {
2177 verify_watcher (EV_A_ (W)w); 2979 verify_watcher (EV_A_ (W)w);
2980
2981 if (j++ & 1)
2982 {
2983 assert (("libev: io watcher list contains a loop", w != w2));
2984 w2 = w2->next;
2985 }
2986
2178 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2987 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2179 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2988 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2180 } 2989 }
2990 }
2181 2991
2182 assert (timermax >= timercnt); 2992 assert (timermax >= timercnt);
2183 verify_heap (EV_A_ timers, timercnt); 2993 verify_heap (EV_A_ timers, timercnt);
2184 2994
2185#if EV_PERIODIC_ENABLE 2995#if EV_PERIODIC_ENABLE
… …
2235#if EV_MULTIPLICITY 3045#if EV_MULTIPLICITY
2236struct ev_loop * ecb_cold 3046struct ev_loop * ecb_cold
2237#else 3047#else
2238int 3048int
2239#endif 3049#endif
2240ev_default_loop (unsigned int flags) 3050ev_default_loop (unsigned int flags) EV_THROW
2241{ 3051{
2242 if (!ev_default_loop_ptr) 3052 if (!ev_default_loop_ptr)
2243 { 3053 {
2244#if EV_MULTIPLICITY 3054#if EV_MULTIPLICITY
2245 EV_P = ev_default_loop_ptr = &default_loop_struct; 3055 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2264 3074
2265 return ev_default_loop_ptr; 3075 return ev_default_loop_ptr;
2266} 3076}
2267 3077
2268void 3078void
2269ev_loop_fork (EV_P) 3079ev_loop_fork (EV_P) EV_THROW
2270{ 3080{
2271 postfork = 1; /* must be in line with ev_default_fork */ 3081 postfork = 1;
2272} 3082}
2273 3083
2274/*****************************************************************************/ 3084/*****************************************************************************/
2275 3085
2276void 3086void
… …
2278{ 3088{
2279 EV_CB_INVOKE ((W)w, revents); 3089 EV_CB_INVOKE ((W)w, revents);
2280} 3090}
2281 3091
2282unsigned int 3092unsigned int
2283ev_pending_count (EV_P) 3093ev_pending_count (EV_P) EV_THROW
2284{ 3094{
2285 int pri; 3095 int pri;
2286 unsigned int count = 0; 3096 unsigned int count = 0;
2287 3097
2288 for (pri = NUMPRI; pri--; ) 3098 for (pri = NUMPRI; pri--; )
… …
2292} 3102}
2293 3103
2294void noinline 3104void noinline
2295ev_invoke_pending (EV_P) 3105ev_invoke_pending (EV_P)
2296{ 3106{
2297 int pri; 3107 pendingpri = NUMPRI;
2298 3108
2299 for (pri = NUMPRI; pri--; ) 3109 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3110 {
3111 --pendingpri;
3112
2300 while (pendingcnt [pri]) 3113 while (pendingcnt [pendingpri])
2301 { 3114 {
2302 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3115 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2303 3116
2304 p->w->pending = 0; 3117 p->w->pending = 0;
2305 EV_CB_INVOKE (p->w, p->events); 3118 EV_CB_INVOKE (p->w, p->events);
2306 EV_FREQUENT_CHECK; 3119 EV_FREQUENT_CHECK;
2307 } 3120 }
3121 }
2308} 3122}
2309 3123
2310#if EV_IDLE_ENABLE 3124#if EV_IDLE_ENABLE
2311/* make idle watchers pending. this handles the "call-idle */ 3125/* make idle watchers pending. this handles the "call-idle */
2312/* only when higher priorities are idle" logic */ 3126/* only when higher priorities are idle" logic */
… …
2402{ 3216{
2403 EV_FREQUENT_CHECK; 3217 EV_FREQUENT_CHECK;
2404 3218
2405 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3219 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2406 { 3220 {
2407 int feed_count = 0;
2408
2409 do 3221 do
2410 { 3222 {
2411 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3223 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2412 3224
2413 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3225 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2547 3359
2548 mn_now = ev_rt_now; 3360 mn_now = ev_rt_now;
2549 } 3361 }
2550} 3362}
2551 3363
2552void 3364int
2553ev_run (EV_P_ int flags) 3365ev_run (EV_P_ int flags)
2554{ 3366{
2555#if EV_FEATURE_API 3367#if EV_FEATURE_API
2556 ++loop_depth; 3368 ++loop_depth;
2557#endif 3369#endif
… …
2670#endif 3482#endif
2671 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3483 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2672 backend_poll (EV_A_ waittime); 3484 backend_poll (EV_A_ waittime);
2673 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3485 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2674 3486
2675 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3487 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2676 3488
3489 ECB_MEMORY_FENCE_ACQUIRE;
2677 if (pipe_write_skipped) 3490 if (pipe_write_skipped)
2678 { 3491 {
2679 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3492 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2680 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3493 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2681 } 3494 }
… …
2714 loop_done = EVBREAK_CANCEL; 3527 loop_done = EVBREAK_CANCEL;
2715 3528
2716#if EV_FEATURE_API 3529#if EV_FEATURE_API
2717 --loop_depth; 3530 --loop_depth;
2718#endif 3531#endif
3532
3533 return activecnt;
2719} 3534}
2720 3535
2721void 3536void
2722ev_break (EV_P_ int how) 3537ev_break (EV_P_ int how) EV_THROW
2723{ 3538{
2724 loop_done = how; 3539 loop_done = how;
2725} 3540}
2726 3541
2727void 3542void
2728ev_ref (EV_P) 3543ev_ref (EV_P) EV_THROW
2729{ 3544{
2730 ++activecnt; 3545 ++activecnt;
2731} 3546}
2732 3547
2733void 3548void
2734ev_unref (EV_P) 3549ev_unref (EV_P) EV_THROW
2735{ 3550{
2736 --activecnt; 3551 --activecnt;
2737} 3552}
2738 3553
2739void 3554void
2740ev_now_update (EV_P) 3555ev_now_update (EV_P) EV_THROW
2741{ 3556{
2742 time_update (EV_A_ 1e100); 3557 time_update (EV_A_ 1e100);
2743} 3558}
2744 3559
2745void 3560void
2746ev_suspend (EV_P) 3561ev_suspend (EV_P) EV_THROW
2747{ 3562{
2748 ev_now_update (EV_A); 3563 ev_now_update (EV_A);
2749} 3564}
2750 3565
2751void 3566void
2752ev_resume (EV_P) 3567ev_resume (EV_P) EV_THROW
2753{ 3568{
2754 ev_tstamp mn_prev = mn_now; 3569 ev_tstamp mn_prev = mn_now;
2755 3570
2756 ev_now_update (EV_A); 3571 ev_now_update (EV_A);
2757 timers_reschedule (EV_A_ mn_now - mn_prev); 3572 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2796 w->pending = 0; 3611 w->pending = 0;
2797 } 3612 }
2798} 3613}
2799 3614
2800int 3615int
2801ev_clear_pending (EV_P_ void *w) 3616ev_clear_pending (EV_P_ void *w) EV_THROW
2802{ 3617{
2803 W w_ = (W)w; 3618 W w_ = (W)w;
2804 int pending = w_->pending; 3619 int pending = w_->pending;
2805 3620
2806 if (expect_true (pending)) 3621 if (expect_true (pending))
… …
2839} 3654}
2840 3655
2841/*****************************************************************************/ 3656/*****************************************************************************/
2842 3657
2843void noinline 3658void noinline
2844ev_io_start (EV_P_ ev_io *w) 3659ev_io_start (EV_P_ ev_io *w) EV_THROW
2845{ 3660{
2846 int fd = w->fd; 3661 int fd = w->fd;
2847 3662
2848 if (expect_false (ev_is_active (w))) 3663 if (expect_false (ev_is_active (w)))
2849 return; 3664 return;
… …
2855 3670
2856 ev_start (EV_A_ (W)w, 1); 3671 ev_start (EV_A_ (W)w, 1);
2857 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3672 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2858 wlist_add (&anfds[fd].head, (WL)w); 3673 wlist_add (&anfds[fd].head, (WL)w);
2859 3674
3675 /* common bug, apparently */
3676 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3677
2860 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3678 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2861 w->events &= ~EV__IOFDSET; 3679 w->events &= ~EV__IOFDSET;
2862 3680
2863 EV_FREQUENT_CHECK; 3681 EV_FREQUENT_CHECK;
2864} 3682}
2865 3683
2866void noinline 3684void noinline
2867ev_io_stop (EV_P_ ev_io *w) 3685ev_io_stop (EV_P_ ev_io *w) EV_THROW
2868{ 3686{
2869 clear_pending (EV_A_ (W)w); 3687 clear_pending (EV_A_ (W)w);
2870 if (expect_false (!ev_is_active (w))) 3688 if (expect_false (!ev_is_active (w)))
2871 return; 3689 return;
2872 3690
… …
2881 3699
2882 EV_FREQUENT_CHECK; 3700 EV_FREQUENT_CHECK;
2883} 3701}
2884 3702
2885void noinline 3703void noinline
2886ev_timer_start (EV_P_ ev_timer *w) 3704ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2887{ 3705{
2888 if (expect_false (ev_is_active (w))) 3706 if (expect_false (ev_is_active (w)))
2889 return; 3707 return;
2890 3708
2891 ev_at (w) += mn_now; 3709 ev_at (w) += mn_now;
… …
2905 3723
2906 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3724 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2907} 3725}
2908 3726
2909void noinline 3727void noinline
2910ev_timer_stop (EV_P_ ev_timer *w) 3728ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2911{ 3729{
2912 clear_pending (EV_A_ (W)w); 3730 clear_pending (EV_A_ (W)w);
2913 if (expect_false (!ev_is_active (w))) 3731 if (expect_false (!ev_is_active (w)))
2914 return; 3732 return;
2915 3733
… …
2935 3753
2936 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
2937} 3755}
2938 3756
2939void noinline 3757void noinline
2940ev_timer_again (EV_P_ ev_timer *w) 3758ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2941{ 3759{
2942 EV_FREQUENT_CHECK; 3760 EV_FREQUENT_CHECK;
3761
3762 clear_pending (EV_A_ (W)w);
2943 3763
2944 if (ev_is_active (w)) 3764 if (ev_is_active (w))
2945 { 3765 {
2946 if (w->repeat) 3766 if (w->repeat)
2947 { 3767 {
… …
2960 3780
2961 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
2962} 3782}
2963 3783
2964ev_tstamp 3784ev_tstamp
2965ev_timer_remaining (EV_P_ ev_timer *w) 3785ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2966{ 3786{
2967 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3787 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2968} 3788}
2969 3789
2970#if EV_PERIODIC_ENABLE 3790#if EV_PERIODIC_ENABLE
2971void noinline 3791void noinline
2972ev_periodic_start (EV_P_ ev_periodic *w) 3792ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2973{ 3793{
2974 if (expect_false (ev_is_active (w))) 3794 if (expect_false (ev_is_active (w)))
2975 return; 3795 return;
2976 3796
2977 if (w->reschedule_cb) 3797 if (w->reschedule_cb)
… …
2997 3817
2998 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3818 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2999} 3819}
3000 3820
3001void noinline 3821void noinline
3002ev_periodic_stop (EV_P_ ev_periodic *w) 3822ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3003{ 3823{
3004 clear_pending (EV_A_ (W)w); 3824 clear_pending (EV_A_ (W)w);
3005 if (expect_false (!ev_is_active (w))) 3825 if (expect_false (!ev_is_active (w)))
3006 return; 3826 return;
3007 3827
… …
3025 3845
3026 EV_FREQUENT_CHECK; 3846 EV_FREQUENT_CHECK;
3027} 3847}
3028 3848
3029void noinline 3849void noinline
3030ev_periodic_again (EV_P_ ev_periodic *w) 3850ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3031{ 3851{
3032 /* TODO: use adjustheap and recalculation */ 3852 /* TODO: use adjustheap and recalculation */
3033 ev_periodic_stop (EV_A_ w); 3853 ev_periodic_stop (EV_A_ w);
3034 ev_periodic_start (EV_A_ w); 3854 ev_periodic_start (EV_A_ w);
3035} 3855}
… …
3040#endif 3860#endif
3041 3861
3042#if EV_SIGNAL_ENABLE 3862#if EV_SIGNAL_ENABLE
3043 3863
3044void noinline 3864void noinline
3045ev_signal_start (EV_P_ ev_signal *w) 3865ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3046{ 3866{
3047 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
3048 return; 3868 return;
3049 3869
3050 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3870 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3052#if EV_MULTIPLICITY 3872#if EV_MULTIPLICITY
3053 assert (("libev: a signal must not be attached to two different loops", 3873 assert (("libev: a signal must not be attached to two different loops",
3054 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3874 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3055 3875
3056 signals [w->signum - 1].loop = EV_A; 3876 signals [w->signum - 1].loop = EV_A;
3877 ECB_MEMORY_FENCE_RELEASE;
3057#endif 3878#endif
3058 3879
3059 EV_FREQUENT_CHECK; 3880 EV_FREQUENT_CHECK;
3060 3881
3061#if EV_USE_SIGNALFD 3882#if EV_USE_SIGNALFD
… …
3121 3942
3122 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3123} 3944}
3124 3945
3125void noinline 3946void noinline
3126ev_signal_stop (EV_P_ ev_signal *w) 3947ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3127{ 3948{
3128 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3129 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3130 return; 3951 return;
3131 3952
… …
3162#endif 3983#endif
3163 3984
3164#if EV_CHILD_ENABLE 3985#if EV_CHILD_ENABLE
3165 3986
3166void 3987void
3167ev_child_start (EV_P_ ev_child *w) 3988ev_child_start (EV_P_ ev_child *w) EV_THROW
3168{ 3989{
3169#if EV_MULTIPLICITY 3990#if EV_MULTIPLICITY
3170 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3991 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3171#endif 3992#endif
3172 if (expect_false (ev_is_active (w))) 3993 if (expect_false (ev_is_active (w)))
… …
3179 4000
3180 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
3181} 4002}
3182 4003
3183void 4004void
3184ev_child_stop (EV_P_ ev_child *w) 4005ev_child_stop (EV_P_ ev_child *w) EV_THROW
3185{ 4006{
3186 clear_pending (EV_A_ (W)w); 4007 clear_pending (EV_A_ (W)w);
3187 if (expect_false (!ev_is_active (w))) 4008 if (expect_false (!ev_is_active (w)))
3188 return; 4009 return;
3189 4010
… …
3216# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4037# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3217 4038
3218static void noinline 4039static void noinline
3219infy_add (EV_P_ ev_stat *w) 4040infy_add (EV_P_ ev_stat *w)
3220{ 4041{
3221 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); 4042 w->wd = inotify_add_watch (fs_fd, w->path,
4043 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4044 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4045 | IN_DONT_FOLLOW | IN_MASK_ADD);
3222 4046
3223 if (w->wd >= 0) 4047 if (w->wd >= 0)
3224 { 4048 {
3225 struct statfs sfs; 4049 struct statfs sfs;
3226 4050
… …
3230 4054
3231 if (!fs_2625) 4055 if (!fs_2625)
3232 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4056 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3233 else if (!statfs (w->path, &sfs) 4057 else if (!statfs (w->path, &sfs)
3234 && (sfs.f_type == 0x1373 /* devfs */ 4058 && (sfs.f_type == 0x1373 /* devfs */
4059 || sfs.f_type == 0x4006 /* fat */
4060 || sfs.f_type == 0x4d44 /* msdos */
3235 || sfs.f_type == 0xEF53 /* ext2/3 */ 4061 || sfs.f_type == 0xEF53 /* ext2/3 */
4062 || sfs.f_type == 0x72b6 /* jffs2 */
4063 || sfs.f_type == 0x858458f6 /* ramfs */
4064 || sfs.f_type == 0x5346544e /* ntfs */
3236 || sfs.f_type == 0x3153464a /* jfs */ 4065 || sfs.f_type == 0x3153464a /* jfs */
4066 || sfs.f_type == 0x9123683e /* btrfs */
3237 || sfs.f_type == 0x52654973 /* reiser3 */ 4067 || sfs.f_type == 0x52654973 /* reiser3 */
3238 || sfs.f_type == 0x01021994 /* tempfs */ 4068 || sfs.f_type == 0x01021994 /* tmpfs */
3239 || sfs.f_type == 0x58465342 /* xfs */)) 4069 || sfs.f_type == 0x58465342 /* xfs */))
3240 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4070 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3241 else 4071 else
3242 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4072 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3243 } 4073 }
… …
3356} 4186}
3357 4187
3358inline_size int 4188inline_size int
3359infy_newfd (void) 4189infy_newfd (void)
3360{ 4190{
3361#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4191#if defined IN_CLOEXEC && defined IN_NONBLOCK
3362 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4192 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3363 if (fd >= 0) 4193 if (fd >= 0)
3364 return fd; 4194 return fd;
3365#endif 4195#endif
3366 return inotify_init (); 4196 return inotify_init ();
… …
3441#else 4271#else
3442# define EV_LSTAT(p,b) lstat (p, b) 4272# define EV_LSTAT(p,b) lstat (p, b)
3443#endif 4273#endif
3444 4274
3445void 4275void
3446ev_stat_stat (EV_P_ ev_stat *w) 4276ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3447{ 4277{
3448 if (lstat (w->path, &w->attr) < 0) 4278 if (lstat (w->path, &w->attr) < 0)
3449 w->attr.st_nlink = 0; 4279 w->attr.st_nlink = 0;
3450 else if (!w->attr.st_nlink) 4280 else if (!w->attr.st_nlink)
3451 w->attr.st_nlink = 1; 4281 w->attr.st_nlink = 1;
… …
3490 ev_feed_event (EV_A_ w, EV_STAT); 4320 ev_feed_event (EV_A_ w, EV_STAT);
3491 } 4321 }
3492} 4322}
3493 4323
3494void 4324void
3495ev_stat_start (EV_P_ ev_stat *w) 4325ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3496{ 4326{
3497 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3498 return; 4328 return;
3499 4329
3500 ev_stat_stat (EV_A_ w); 4330 ev_stat_stat (EV_A_ w);
… …
3521 4351
3522 EV_FREQUENT_CHECK; 4352 EV_FREQUENT_CHECK;
3523} 4353}
3524 4354
3525void 4355void
3526ev_stat_stop (EV_P_ ev_stat *w) 4356ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3527{ 4357{
3528 clear_pending (EV_A_ (W)w); 4358 clear_pending (EV_A_ (W)w);
3529 if (expect_false (!ev_is_active (w))) 4359 if (expect_false (!ev_is_active (w)))
3530 return; 4360 return;
3531 4361
… …
3547} 4377}
3548#endif 4378#endif
3549 4379
3550#if EV_IDLE_ENABLE 4380#if EV_IDLE_ENABLE
3551void 4381void
3552ev_idle_start (EV_P_ ev_idle *w) 4382ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3553{ 4383{
3554 if (expect_false (ev_is_active (w))) 4384 if (expect_false (ev_is_active (w)))
3555 return; 4385 return;
3556 4386
3557 pri_adjust (EV_A_ (W)w); 4387 pri_adjust (EV_A_ (W)w);
… …
3570 4400
3571 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3572} 4402}
3573 4403
3574void 4404void
3575ev_idle_stop (EV_P_ ev_idle *w) 4405ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3576{ 4406{
3577 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3578 if (expect_false (!ev_is_active (w))) 4408 if (expect_false (!ev_is_active (w)))
3579 return; 4409 return;
3580 4410
… …
3594} 4424}
3595#endif 4425#endif
3596 4426
3597#if EV_PREPARE_ENABLE 4427#if EV_PREPARE_ENABLE
3598void 4428void
3599ev_prepare_start (EV_P_ ev_prepare *w) 4429ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3600{ 4430{
3601 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
3602 return; 4432 return;
3603 4433
3604 EV_FREQUENT_CHECK; 4434 EV_FREQUENT_CHECK;
… …
3609 4439
3610 EV_FREQUENT_CHECK; 4440 EV_FREQUENT_CHECK;
3611} 4441}
3612 4442
3613void 4443void
3614ev_prepare_stop (EV_P_ ev_prepare *w) 4444ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3615{ 4445{
3616 clear_pending (EV_A_ (W)w); 4446 clear_pending (EV_A_ (W)w);
3617 if (expect_false (!ev_is_active (w))) 4447 if (expect_false (!ev_is_active (w)))
3618 return; 4448 return;
3619 4449
… …
3632} 4462}
3633#endif 4463#endif
3634 4464
3635#if EV_CHECK_ENABLE 4465#if EV_CHECK_ENABLE
3636void 4466void
3637ev_check_start (EV_P_ ev_check *w) 4467ev_check_start (EV_P_ ev_check *w) EV_THROW
3638{ 4468{
3639 if (expect_false (ev_is_active (w))) 4469 if (expect_false (ev_is_active (w)))
3640 return; 4470 return;
3641 4471
3642 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
… …
3647 4477
3648 EV_FREQUENT_CHECK; 4478 EV_FREQUENT_CHECK;
3649} 4479}
3650 4480
3651void 4481void
3652ev_check_stop (EV_P_ ev_check *w) 4482ev_check_stop (EV_P_ ev_check *w) EV_THROW
3653{ 4483{
3654 clear_pending (EV_A_ (W)w); 4484 clear_pending (EV_A_ (W)w);
3655 if (expect_false (!ev_is_active (w))) 4485 if (expect_false (!ev_is_active (w)))
3656 return; 4486 return;
3657 4487
… …
3670} 4500}
3671#endif 4501#endif
3672 4502
3673#if EV_EMBED_ENABLE 4503#if EV_EMBED_ENABLE
3674void noinline 4504void noinline
3675ev_embed_sweep (EV_P_ ev_embed *w) 4505ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3676{ 4506{
3677 ev_run (w->other, EVRUN_NOWAIT); 4507 ev_run (w->other, EVRUN_NOWAIT);
3678} 4508}
3679 4509
3680static void 4510static void
… …
3728 ev_idle_stop (EV_A_ idle); 4558 ev_idle_stop (EV_A_ idle);
3729} 4559}
3730#endif 4560#endif
3731 4561
3732void 4562void
3733ev_embed_start (EV_P_ ev_embed *w) 4563ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3734{ 4564{
3735 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
3736 return; 4566 return;
3737 4567
3738 { 4568 {
… …
3759 4589
3760 EV_FREQUENT_CHECK; 4590 EV_FREQUENT_CHECK;
3761} 4591}
3762 4592
3763void 4593void
3764ev_embed_stop (EV_P_ ev_embed *w) 4594ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3765{ 4595{
3766 clear_pending (EV_A_ (W)w); 4596 clear_pending (EV_A_ (W)w);
3767 if (expect_false (!ev_is_active (w))) 4597 if (expect_false (!ev_is_active (w)))
3768 return; 4598 return;
3769 4599
… …
3779} 4609}
3780#endif 4610#endif
3781 4611
3782#if EV_FORK_ENABLE 4612#if EV_FORK_ENABLE
3783void 4613void
3784ev_fork_start (EV_P_ ev_fork *w) 4614ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3785{ 4615{
3786 if (expect_false (ev_is_active (w))) 4616 if (expect_false (ev_is_active (w)))
3787 return; 4617 return;
3788 4618
3789 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
… …
3794 4624
3795 EV_FREQUENT_CHECK; 4625 EV_FREQUENT_CHECK;
3796} 4626}
3797 4627
3798void 4628void
3799ev_fork_stop (EV_P_ ev_fork *w) 4629ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3800{ 4630{
3801 clear_pending (EV_A_ (W)w); 4631 clear_pending (EV_A_ (W)w);
3802 if (expect_false (!ev_is_active (w))) 4632 if (expect_false (!ev_is_active (w)))
3803 return; 4633 return;
3804 4634
… …
3817} 4647}
3818#endif 4648#endif
3819 4649
3820#if EV_CLEANUP_ENABLE 4650#if EV_CLEANUP_ENABLE
3821void 4651void
3822ev_cleanup_start (EV_P_ ev_cleanup *w) 4652ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3823{ 4653{
3824 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
3825 return; 4655 return;
3826 4656
3827 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
3834 ev_unref (EV_A); 4664 ev_unref (EV_A);
3835 EV_FREQUENT_CHECK; 4665 EV_FREQUENT_CHECK;
3836} 4666}
3837 4667
3838void 4668void
3839ev_cleanup_stop (EV_P_ ev_cleanup *w) 4669ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3840{ 4670{
3841 clear_pending (EV_A_ (W)w); 4671 clear_pending (EV_A_ (W)w);
3842 if (expect_false (!ev_is_active (w))) 4672 if (expect_false (!ev_is_active (w)))
3843 return; 4673 return;
3844 4674
… …
3858} 4688}
3859#endif 4689#endif
3860 4690
3861#if EV_ASYNC_ENABLE 4691#if EV_ASYNC_ENABLE
3862void 4692void
3863ev_async_start (EV_P_ ev_async *w) 4693ev_async_start (EV_P_ ev_async *w) EV_THROW
3864{ 4694{
3865 if (expect_false (ev_is_active (w))) 4695 if (expect_false (ev_is_active (w)))
3866 return; 4696 return;
3867 4697
3868 w->sent = 0; 4698 w->sent = 0;
… …
3877 4707
3878 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
3879} 4709}
3880 4710
3881void 4711void
3882ev_async_stop (EV_P_ ev_async *w) 4712ev_async_stop (EV_P_ ev_async *w) EV_THROW
3883{ 4713{
3884 clear_pending (EV_A_ (W)w); 4714 clear_pending (EV_A_ (W)w);
3885 if (expect_false (!ev_is_active (w))) 4715 if (expect_false (!ev_is_active (w)))
3886 return; 4716 return;
3887 4717
… …
3898 4728
3899 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
3900} 4730}
3901 4731
3902void 4732void
3903ev_async_send (EV_P_ ev_async *w) 4733ev_async_send (EV_P_ ev_async *w) EV_THROW
3904{ 4734{
3905 w->sent = 1; 4735 w->sent = 1;
3906 evpipe_write (EV_A_ &async_pending); 4736 evpipe_write (EV_A_ &async_pending);
3907} 4737}
3908#endif 4738#endif
… …
3945 4775
3946 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4776 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3947} 4777}
3948 4778
3949void 4779void
3950ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4780ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3951{ 4781{
3952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4782 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3953 4783
3954 if (expect_false (!once)) 4784 if (expect_false (!once))
3955 { 4785 {
… …
3977 4807
3978/*****************************************************************************/ 4808/*****************************************************************************/
3979 4809
3980#if EV_WALK_ENABLE 4810#if EV_WALK_ENABLE
3981void ecb_cold 4811void ecb_cold
3982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4812ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3983{ 4813{
3984 int i, j; 4814 int i, j;
3985 ev_watcher_list *wl, *wn; 4815 ev_watcher_list *wl, *wn;
3986 4816
3987 if (types & (EV_IO | EV_EMBED)) 4817 if (types & (EV_IO | EV_EMBED))
… …
4093 4923
4094#if EV_MULTIPLICITY 4924#if EV_MULTIPLICITY
4095 #include "ev_wrap.h" 4925 #include "ev_wrap.h"
4096#endif 4926#endif
4097 4927
4098EV_CPP(})
4099

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