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Comparing libev/ev.c (file contents):
Revision 1.416 by root, Mon Apr 2 20:12:16 2012 UTC vs.
Revision 1.478 by root, Sun Oct 11 13:38:44 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
… …
201# include <sys/wait.h> 201# include <sys/wait.h>
202# include <unistd.h> 202# include <unistd.h>
203#else 203#else
204# include <io.h> 204# include <io.h>
205# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
206# include <windows.h> 207# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
209# endif 210# endif
210# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
240#elif defined SIGARRAYSIZE 241#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig 243#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 245#else
245# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif 247#endif
250 248
251#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
253#endif 251#endif
254 252
255#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 256# else
259# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
258# endif
259#endif
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
260# endif 267# endif
261#endif 268#endif
262 269
263#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
356 363
357#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 366#endif
360 367
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
361/* 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, */
362/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 387# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
369# else 392# else
… …
372# endif 395# endif
373#endif 396#endif
374 397
375/* 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 */
376 399
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
386#endif 403#endif
387 404
… …
408/* 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 */
409# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
412# endif 429# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 430#endif
418 431
419#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
420/* 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 */
421# include <stdint.h> 434# include <stdint.h>
… …
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
480/* 493/*
481 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
482 * 495 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 498 * All rights reserved.
486 * 499 *
487 * Redistribution and use in source and binary forms, with or without modifica- 500 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
… …
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE. 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.
507 */ 531 */
508 532
509#ifndef ECB_H 533#ifndef ECB_H
510#define ECB_H 534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
511 538
512#ifdef _WIN32 539#ifdef _WIN32
513 typedef signed char int8_t; 540 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
521 typedef unsigned long long uint64_t; 548 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 549 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 550 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 551 typedef unsigned __int64 uint64_t;
525 #endif 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
526#else 562#else
527 #include <inttypes.h> 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#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
574/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32
577 #define ECB_AMD64_X32 1
578 #else
579 #define ECB_AMD64 1
580 #endif
528#endif 581#endif
529 582
530/* many compilers define _GNUC_ to some versions but then only implement 583/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 584 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 585 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 586 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 587 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place. 588 * an issue with that they should have done it right in the first place.
536 */ 589 */
537#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 590#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 591 #define ECB_GCC_VERSION(major,minor) 0
540 #else 592#else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 593 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 594#endif
595
596#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
597
598#if __clang__ && defined __has_builtin
599 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
600#else
601 #define ECB_CLANG_BUILTIN(x) 0
602#endif
603
604#if __clang__ && defined __has_extension
605 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
606#else
607 #define ECB_CLANG_EXTENSION(x) 0
608#endif
609
610#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L)
612
613#if ECB_CPP
614 #define ECB_C 0
615 #define ECB_STDC_VERSION 0
616#else
617 #define ECB_C 1
618 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif
620
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
623
624#if ECB_CPP
625 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END }
628#else
629 #define ECB_EXTERN_C extern
630 #define ECB_EXTERN_C_BEG
631 #define ECB_EXTERN_C_END
543#endif 632#endif
544 633
545/*****************************************************************************/ 634/*****************************************************************************/
546 635
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 636/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 637/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 638
550#if ECB_NO_THREADS 639#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 640 #define ECB_NO_SMP 1
552#endif 641#endif
553 642
554#if ECB_NO_THREADS || ECB_NO_SMP 643#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 644 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 645#endif
557 646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP
649 #include <builtins.h>
650#endif
651
558#ifndef ECB_MEMORY_FENCE 652#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 654 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 656 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 658 #elif ECB_GCC_AMD64
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 664 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 665 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 667 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 670 #elif __aarch64__
671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
672 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 674 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 675 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 676 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 678 #elif defined __mips__
679 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
680 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
681 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
682 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
684 #elif defined __hppa__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
686 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
687 #elif defined __ia64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
689 #elif defined __m68k__
690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
691 #elif defined __m88k__
692 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
693 #elif defined __sh__
694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 695 #endif
585 #endif 696 #endif
586#endif 697#endif
587 698
588#ifndef ECB_MEMORY_FENCE 699#ifndef ECB_MEMORY_FENCE
700 #if ECB_GCC_VERSION(4,7)
701 /* see comment below (stdatomic.h) about the C11 memory model. */
702 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
703 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
704 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
705
706 #elif ECB_CLANG_EXTENSION(c_atomic)
707 /* see comment below (stdatomic.h) about the C11 memory model. */
708 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
709 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
710 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
711
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 712 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 713 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 714 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 715 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
716 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
717 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
718 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
719 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 720 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 721 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 722 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 723 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 724 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 725 #elif defined _WIN32
599 #include <WinNT.h> 726 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 727 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 729 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 730 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 731 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 732 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
606 #elif __xlC__ 733 #elif __xlC__
607 #define ECB_MEMORY_FENCE __sync () 734 #define ECB_MEMORY_FENCE __sync ()
735 #endif
736#endif
737
738#ifndef ECB_MEMORY_FENCE
739 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
740 /* we assume that these memory fences work on all variables/all memory accesses, */
741 /* not just C11 atomics and atomic accesses */
742 #include <stdatomic.h>
743 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
744 /* any fence other than seq_cst, which isn't very efficient for us. */
745 /* Why that is, we don't know - either the C11 memory model is quite useless */
746 /* for most usages, or gcc and clang have a bug */
747 /* I *currently* lean towards the latter, and inefficiently implement */
748 /* all three of ecb's fences as a seq_cst fence */
749 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
750 /* for all __atomic_thread_fence's except seq_cst */
751 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
608 #endif 752 #endif
609#endif 753#endif
610 754
611#ifndef ECB_MEMORY_FENCE 755#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 756 #if !ECB_AVOID_PTHREADS
… …
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 768 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
625 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 769 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
626 #endif 770 #endif
627#endif 771#endif
628 772
629#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 773#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 774 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif 775#endif
632 776
633#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 777#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 778 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 779#endif
636 780
637/*****************************************************************************/ 781/*****************************************************************************/
638 782
639#define ECB_C99 (__STDC_VERSION__ >= 199901L) 783#if ECB_CPP
640
641#if __cplusplus
642 #define ecb_inline static inline 784 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 785#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 786 #define ecb_inline static __inline__
645#elif ECB_C99 787#elif ECB_C99
646 #define ecb_inline static inline 788 #define ecb_inline static inline
… …
660 802
661#define ECB_CONCAT_(a, b) a ## b 803#define ECB_CONCAT_(a, b) a ## b
662#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 804#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
663#define ECB_STRINGIFY_(a) # a 805#define ECB_STRINGIFY_(a) # a
664#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 806#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
807#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
665 808
666#define ecb_function_ ecb_inline 809#define ecb_function_ ecb_inline
667 810
668#if ECB_GCC_VERSION(3,1) 811#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
669 #define ecb_attribute(attrlist) __attribute__(attrlist) 812 #define ecb_attribute(attrlist) __attribute__ (attrlist)
813#else
814 #define ecb_attribute(attrlist)
815#endif
816
817#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
670 #define ecb_is_constant(expr) __builtin_constant_p (expr) 818 #define ecb_is_constant(expr) __builtin_constant_p (expr)
819#else
820 /* possible C11 impl for integral types
821 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
822 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
823
824 #define ecb_is_constant(expr) 0
825#endif
826
827#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
671 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 828 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
829#else
830 #define ecb_expect(expr,value) (expr)
831#endif
832
833#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
672 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 834 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
673#else 835#else
674 #define ecb_attribute(attrlist)
675 #define ecb_is_constant(expr) 0
676 #define ecb_expect(expr,value) (expr)
677 #define ecb_prefetch(addr,rw,locality) 836 #define ecb_prefetch(addr,rw,locality)
678#endif 837#endif
679 838
680/* no emulation for ecb_decltype */ 839/* no emulation for ecb_decltype */
681#if ECB_GCC_VERSION(4,5) 840#if ECB_CPP11
841 // older implementations might have problems with decltype(x)::type, work around it
842 template<class T> struct ecb_decltype_t { typedef T type; };
682 #define ecb_decltype(x) __decltype(x) 843 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
683#elif ECB_GCC_VERSION(3,0) 844#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
684 #define ecb_decltype(x) __typeof(x) 845 #define ecb_decltype(x) __typeof__ (x)
685#endif 846#endif
686 847
848#if _MSC_VER >= 1300
849 #define ecb_deprecated __declspec (deprecated)
850#else
851 #define ecb_deprecated ecb_attribute ((__deprecated__))
852#endif
853
854#if _MSC_VER >= 1500
855 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
856#elif ECB_GCC_VERSION(4,5)
857 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
858#else
859 #define ecb_deprecated_message(msg) ecb_deprecated
860#endif
861
862#if _MSC_VER >= 1400
863 #define ecb_noinline __declspec (noinline)
864#else
687#define ecb_noinline ecb_attribute ((__noinline__)) 865 #define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__)) 866#endif
867
689#define ecb_unused ecb_attribute ((__unused__)) 868#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 869#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__)) 870#define ecb_pure ecb_attribute ((__pure__))
871
872#if ECB_C11 || __IBMC_NORETURN
873 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
874 #define ecb_noreturn _Noreturn
875#elif ECB_CPP11
876 #define ecb_noreturn [[noreturn]]
877#elif _MSC_VER >= 1200
878 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
879 #define ecb_noreturn __declspec (noreturn)
880#else
881 #define ecb_noreturn ecb_attribute ((__noreturn__))
882#endif
692 883
693#if ECB_GCC_VERSION(4,3) 884#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 885 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 886 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 887 #define ecb_cold ecb_attribute ((__cold__))
… …
708/* for compatibility to the rest of the world */ 899/* for compatibility to the rest of the world */
709#define ecb_likely(expr) ecb_expect_true (expr) 900#define ecb_likely(expr) ecb_expect_true (expr)
710#define ecb_unlikely(expr) ecb_expect_false (expr) 901#define ecb_unlikely(expr) ecb_expect_false (expr)
711 902
712/* count trailing zero bits and count # of one bits */ 903/* count trailing zero bits and count # of one bits */
713#if ECB_GCC_VERSION(3,4) 904#if ECB_GCC_VERSION(3,4) \
905 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
906 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
907 && ECB_CLANG_BUILTIN(__builtin_popcount))
714 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 908 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
715 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 909 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
716 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 910 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
717 #define ecb_ctz32(x) __builtin_ctz (x) 911 #define ecb_ctz32(x) __builtin_ctz (x)
718 #define ecb_ctz64(x) __builtin_ctzll (x) 912 #define ecb_ctz64(x) __builtin_ctzll (x)
719 #define ecb_popcount32(x) __builtin_popcount (x) 913 #define ecb_popcount32(x) __builtin_popcount (x)
720 /* no popcountll */ 914 /* no popcountll */
721#else 915#else
722 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
723 ecb_function_ int 917 ecb_function_ ecb_const int
724 ecb_ctz32 (uint32_t x) 918 ecb_ctz32 (uint32_t x)
725 { 919 {
726 int r = 0; 920 int r = 0;
727 921
728 x &= ~x + 1; /* this isolates the lowest bit */ 922 x &= ~x + 1; /* this isolates the lowest bit */
… …
742#endif 936#endif
743 937
744 return r; 938 return r;
745 } 939 }
746 940
747 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
748 ecb_function_ int 942 ecb_function_ ecb_const int
749 ecb_ctz64 (uint64_t x) 943 ecb_ctz64 (uint64_t x)
750 { 944 {
751 int shift = x & 0xffffffffU ? 0 : 32; 945 int shift = x & 0xffffffffU ? 0 : 32;
752 return ecb_ctz32 (x >> shift) + shift; 946 return ecb_ctz32 (x >> shift) + shift;
753 } 947 }
754 948
755 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
756 ecb_function_ int 950 ecb_function_ ecb_const int
757 ecb_popcount32 (uint32_t x) 951 ecb_popcount32 (uint32_t x)
758 { 952 {
759 x -= (x >> 1) & 0x55555555; 953 x -= (x >> 1) & 0x55555555;
760 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 954 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
761 x = ((x >> 4) + x) & 0x0f0f0f0f; 955 x = ((x >> 4) + x) & 0x0f0f0f0f;
762 x *= 0x01010101; 956 x *= 0x01010101;
763 957
764 return x >> 24; 958 return x >> 24;
765 } 959 }
766 960
767 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
768 ecb_function_ int ecb_ld32 (uint32_t x) 962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
769 { 963 {
770 int r = 0; 964 int r = 0;
771 965
772 if (x >> 16) { x >>= 16; r += 16; } 966 if (x >> 16) { x >>= 16; r += 16; }
773 if (x >> 8) { x >>= 8; r += 8; } 967 if (x >> 8) { x >>= 8; r += 8; }
… …
776 if (x >> 1) { r += 1; } 970 if (x >> 1) { r += 1; }
777 971
778 return r; 972 return r;
779 } 973 }
780 974
781 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
782 ecb_function_ int ecb_ld64 (uint64_t x) 976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
783 { 977 {
784 int r = 0; 978 int r = 0;
785 979
786 if (x >> 32) { x >>= 32; r += 32; } 980 if (x >> 32) { x >>= 32; r += 32; }
787 981
788 return r + ecb_ld32 (x); 982 return r + ecb_ld32 (x);
789 } 983 }
790#endif 984#endif
791 985
986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
987ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
988ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
989ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
990
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 991ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 992ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
794{ 993{
795 return ( (x * 0x0802U & 0x22110U) 994 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 995 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
797} 996}
798 997
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 998ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
800ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 999ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
801{ 1000{
802 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1001 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
803 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1002 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
804 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1003 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
805 x = ( x >> 8 ) | ( x << 8); 1004 x = ( x >> 8 ) | ( x << 8);
806 1005
807 return x; 1006 return x;
808} 1007}
809 1008
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1009ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
811ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1010ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
812{ 1011{
813 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1012 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
814 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1013 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
815 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1014 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
816 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1015 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
819 return x; 1018 return x;
820} 1019}
821 1020
822/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1021/* popcount64 is only available on 64 bit cpus as gcc builtin */
823/* so for this version we are lazy */ 1022/* so for this version we are lazy */
824ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1023ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
825ecb_function_ int 1024ecb_function_ ecb_const int
826ecb_popcount64 (uint64_t x) 1025ecb_popcount64 (uint64_t x)
827{ 1026{
828 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1027 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
829} 1028}
830 1029
831ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1030ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
832ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1031ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
833ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1032ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
834ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1033ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
835ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1034ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
836ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1035ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
837ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1036ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
838ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1037ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
839 1038
840ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1039ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
841ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1040ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
842ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1041ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
843ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1042ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
844ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1043ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
845ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1044ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
846ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1045ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
847ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1046ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
848 1047
849#if ECB_GCC_VERSION(4,3) 1048#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1049 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1050 #define ecb_bswap16(x) __builtin_bswap16 (x)
1051 #else
850 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1052 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1053 #endif
851 #define ecb_bswap32(x) __builtin_bswap32 (x) 1054 #define ecb_bswap32(x) __builtin_bswap32 (x)
852 #define ecb_bswap64(x) __builtin_bswap64 (x) 1055 #define ecb_bswap64(x) __builtin_bswap64 (x)
1056#elif _MSC_VER
1057 #include <stdlib.h>
1058 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1059 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1060 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
853#else 1061#else
854 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1062 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
855 ecb_function_ uint16_t 1063 ecb_function_ ecb_const uint16_t
856 ecb_bswap16 (uint16_t x) 1064 ecb_bswap16 (uint16_t x)
857 { 1065 {
858 return ecb_rotl16 (x, 8); 1066 return ecb_rotl16 (x, 8);
859 } 1067 }
860 1068
861 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1069 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
862 ecb_function_ uint32_t 1070 ecb_function_ ecb_const uint32_t
863 ecb_bswap32 (uint32_t x) 1071 ecb_bswap32 (uint32_t x)
864 { 1072 {
865 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1073 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
866 } 1074 }
867 1075
868 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
869 ecb_function_ uint64_t 1077 ecb_function_ ecb_const uint64_t
870 ecb_bswap64 (uint64_t x) 1078 ecb_bswap64 (uint64_t x)
871 { 1079 {
872 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1080 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
873 } 1081 }
874#endif 1082#endif
875 1083
876#if ECB_GCC_VERSION(4,5) 1084#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
877 #define ecb_unreachable() __builtin_unreachable () 1085 #define ecb_unreachable() __builtin_unreachable ()
878#else 1086#else
879 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1087 /* this seems to work fine, but gcc always emits a warning for it :/ */
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1088 ecb_inline ecb_noreturn void ecb_unreachable (void);
881 ecb_inline void ecb_unreachable (void) { } 1089 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
882#endif 1090#endif
883 1091
884/* try to tell the compiler that some condition is definitely true */ 1092/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 1094
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
888ecb_inline unsigned char 1096ecb_inline ecb_const unsigned char
889ecb_byteorder_helper (void) 1097ecb_byteorder_helper (void)
890{ 1098{
891 const uint32_t u = 0x11223344; 1099 /* the union code still generates code under pressure in gcc, */
892 return *(unsigned char *)&u; 1100 /* but less than using pointers, and always seems to */
1101 /* successfully return a constant. */
1102 /* the reason why we have this horrible preprocessor mess */
1103 /* is to avoid it in all cases, at least on common architectures */
1104 /* or when using a recent enough gcc version (>= 4.6) */
1105#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1106 return 0x44;
1107#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1108 return 0x44;
1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1110 return 0x11;
1111#else
1112 union
1113 {
1114 uint32_t i;
1115 uint8_t c;
1116 } u = { 0x11223344 };
1117 return u.c;
1118#endif
893} 1119}
894 1120
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1121ecb_inline ecb_const ecb_bool ecb_big_endian (void);
896ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1123ecb_inline ecb_const ecb_bool ecb_little_endian (void);
898ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
899 1125
900#if ECB_GCC_VERSION(3,0) || ECB_C99 1126#if ECB_GCC_VERSION(3,0) || ECB_C99
901 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
902#else 1128#else
903 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
904#endif 1130#endif
905 1131
906#if __cplusplus 1132#if ECB_CPP
907 template<typename T> 1133 template<typename T>
908 static inline T ecb_div_rd (T val, T div) 1134 static inline T ecb_div_rd (T val, T div)
909 { 1135 {
910 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1136 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
911 } 1137 }
… …
928 } 1154 }
929#else 1155#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1157#endif
932 1158
1159/*******************************************************************************/
1160/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1161
1162/* basically, everything uses "ieee pure-endian" floating point numbers */
1163/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1164#if 0 \
1165 || __i386 || __i386__ \
1166 || ECB_GCC_AMD64 \
1167 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1168 || defined __s390__ || defined __s390x__ \
1169 || defined __mips__ \
1170 || defined __alpha__ \
1171 || defined __hppa__ \
1172 || defined __ia64__ \
1173 || defined __m68k__ \
1174 || defined __m88k__ \
1175 || defined __sh__ \
1176 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1177 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1178 || defined __aarch64__
1179 #define ECB_STDFP 1
1180 #include <string.h> /* for memcpy */
1181#else
1182 #define ECB_STDFP 0
1183#endif
1184
1185#ifndef ECB_NO_LIBM
1186
1187 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1188
1189 /* only the oldest of old doesn't have this one. solaris. */
1190 #ifdef INFINITY
1191 #define ECB_INFINITY INFINITY
1192 #else
1193 #define ECB_INFINITY HUGE_VAL
1194 #endif
1195
1196 #ifdef NAN
1197 #define ECB_NAN NAN
1198 #else
1199 #define ECB_NAN ECB_INFINITY
1200 #endif
1201
1202 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1203 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1204 #define ecb_frexpf(x,e) frexpf ((x), (e))
1205 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif
1209
1210 /* converts an ieee half/binary16 to a float */
1211 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1212 ecb_function_ ecb_const float
1213 ecb_binary16_to_float (uint16_t x)
1214 {
1215 int e = (x >> 10) & 0x1f;
1216 int m = x & 0x3ff;
1217 float r;
1218
1219 if (!e ) r = ecb_ldexpf (m , -24);
1220 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1221 else if (m ) r = ECB_NAN;
1222 else r = ECB_INFINITY;
1223
1224 return x & 0x8000 ? -r : r;
1225 }
1226
1227 /* convert a float to ieee single/binary32 */
1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1229 ecb_function_ ecb_const uint32_t
1230 ecb_float_to_binary32 (float x)
1231 {
1232 uint32_t r;
1233
1234 #if ECB_STDFP
1235 memcpy (&r, &x, 4);
1236 #else
1237 /* slow emulation, works for anything but -0 */
1238 uint32_t m;
1239 int e;
1240
1241 if (x == 0e0f ) return 0x00000000U;
1242 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1243 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1244 if (x != x ) return 0x7fbfffffU;
1245
1246 m = ecb_frexpf (x, &e) * 0x1000000U;
1247
1248 r = m & 0x80000000U;
1249
1250 if (r)
1251 m = -m;
1252
1253 if (e <= -126)
1254 {
1255 m &= 0xffffffU;
1256 m >>= (-125 - e);
1257 e = -126;
1258 }
1259
1260 r |= (e + 126) << 23;
1261 r |= m & 0x7fffffU;
1262 #endif
1263
1264 return r;
1265 }
1266
1267 /* converts an ieee single/binary32 to a float */
1268 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1269 ecb_function_ ecb_const float
1270 ecb_binary32_to_float (uint32_t x)
1271 {
1272 float r;
1273
1274 #if ECB_STDFP
1275 memcpy (&r, &x, 4);
1276 #else
1277 /* emulation, only works for normals and subnormals and +0 */
1278 int neg = x >> 31;
1279 int e = (x >> 23) & 0xffU;
1280
1281 x &= 0x7fffffU;
1282
1283 if (e)
1284 x |= 0x800000U;
1285 else
1286 e = 1;
1287
1288 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1289 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1290
1291 r = neg ? -r : r;
1292 #endif
1293
1294 return r;
1295 }
1296
1297 /* convert a double to ieee double/binary64 */
1298 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1299 ecb_function_ ecb_const uint64_t
1300 ecb_double_to_binary64 (double x)
1301 {
1302 uint64_t r;
1303
1304 #if ECB_STDFP
1305 memcpy (&r, &x, 8);
1306 #else
1307 /* slow emulation, works for anything but -0 */
1308 uint64_t m;
1309 int e;
1310
1311 if (x == 0e0 ) return 0x0000000000000000U;
1312 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1313 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1314 if (x != x ) return 0X7ff7ffffffffffffU;
1315
1316 m = frexp (x, &e) * 0x20000000000000U;
1317
1318 r = m & 0x8000000000000000;;
1319
1320 if (r)
1321 m = -m;
1322
1323 if (e <= -1022)
1324 {
1325 m &= 0x1fffffffffffffU;
1326 m >>= (-1021 - e);
1327 e = -1022;
1328 }
1329
1330 r |= ((uint64_t)(e + 1022)) << 52;
1331 r |= m & 0xfffffffffffffU;
1332 #endif
1333
1334 return r;
1335 }
1336
1337 /* converts an ieee double/binary64 to a double */
1338 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1339 ecb_function_ ecb_const double
1340 ecb_binary64_to_double (uint64_t x)
1341 {
1342 double r;
1343
1344 #if ECB_STDFP
1345 memcpy (&r, &x, 8);
1346 #else
1347 /* emulation, only works for normals and subnormals and +0 */
1348 int neg = x >> 63;
1349 int e = (x >> 52) & 0x7ffU;
1350
1351 x &= 0xfffffffffffffU;
1352
1353 if (e)
1354 x |= 0x10000000000000U;
1355 else
1356 e = 1;
1357
1358 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1359 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1360
1361 r = neg ? -r : r;
1362 #endif
1363
1364 return r;
1365 }
1366
1367#endif
1368
933#endif 1369#endif
934 1370
935/* ECB.H END */ 1371/* ECB.H END */
936 1372
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1373#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1103{ 1539{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1540 write (STDERR_FILENO, msg, strlen (msg));
1105} 1541}
1106#endif 1542#endif
1107 1543
1108static void (*syserr_cb)(const char *msg); 1544static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1545
1110void ecb_cold 1546void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1548{
1113 syserr_cb = cb; 1549 syserr_cb = cb;
1114} 1550}
1115 1551
1116static void noinline ecb_cold 1552static void noinline ecb_cold
… …
1134 abort (); 1570 abort ();
1135 } 1571 }
1136} 1572}
1137 1573
1138static void * 1574static void *
1139ev_realloc_emul (void *ptr, long size) 1575ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1576{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1577 /* some systems, notably openbsd and darwin, fail to properly
1145 * implement realloc (x, 0) (as required by both ansi c-89 and 1578 * implement realloc (x, 0) (as required by both ansi c-89 and
1146 * the single unix specification, so work around them here. 1579 * the single unix specification, so work around them here.
1580 * recently, also (at least) fedora and debian started breaking it,
1581 * despite documenting it otherwise.
1147 */ 1582 */
1148 1583
1149 if (size) 1584 if (size)
1150 return realloc (ptr, size); 1585 return realloc (ptr, size);
1151 1586
1152 free (ptr); 1587 free (ptr);
1153 return 0; 1588 return 0;
1154#endif
1155} 1589}
1156 1590
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1592
1159void ecb_cold 1593void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1595{
1162 alloc = cb; 1596 alloc = cb;
1163} 1597}
1164 1598
1165inline_speed void * 1599inline_speed void *
… …
1282 1716
1283/*****************************************************************************/ 1717/*****************************************************************************/
1284 1718
1285#ifndef EV_HAVE_EV_TIME 1719#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1720ev_tstamp
1287ev_time (void) 1721ev_time (void) EV_THROW
1288{ 1722{
1289#if EV_USE_REALTIME 1723#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1724 if (expect_true (have_realtime))
1291 { 1725 {
1292 struct timespec ts; 1726 struct timespec ts;
… …
1316 return ev_time (); 1750 return ev_time ();
1317} 1751}
1318 1752
1319#if EV_MULTIPLICITY 1753#if EV_MULTIPLICITY
1320ev_tstamp 1754ev_tstamp
1321ev_now (EV_P) 1755ev_now (EV_P) EV_THROW
1322{ 1756{
1323 return ev_rt_now; 1757 return ev_rt_now;
1324} 1758}
1325#endif 1759#endif
1326 1760
1327void 1761void
1328ev_sleep (ev_tstamp delay) 1762ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1763{
1330 if (delay > 0.) 1764 if (delay > 0.)
1331 { 1765 {
1332#if EV_USE_NANOSLEEP 1766#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1767 struct timespec ts;
… …
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1848pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1849{
1416} 1850}
1417 1851
1418void noinline 1852void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1854{
1421 W w_ = (W)w; 1855 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1856 int pri = ABSPRI (w_);
1423 1857
1424 if (expect_false (w_->pending)) 1858 if (expect_false (w_->pending))
… …
1428 w_->pending = ++pendingcnt [pri]; 1862 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1864 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1865 pendings [pri][w_->pending - 1].events = revents;
1432 } 1866 }
1867
1868 pendingpri = NUMPRI - 1;
1433} 1869}
1434 1870
1435inline_speed void 1871inline_speed void
1436feed_reverse (EV_P_ W w) 1872feed_reverse (EV_P_ W w)
1437{ 1873{
… …
1483 if (expect_true (!anfd->reify)) 1919 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 1920 fd_event_nocheck (EV_A_ fd, revents);
1485} 1921}
1486 1922
1487void 1923void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 1924ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 1925{
1490 if (fd >= 0 && fd < anfdmax) 1926 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 1927 fd_event_nocheck (EV_A_ fd, revents);
1492} 1928}
1493 1929
… …
1812static void noinline ecb_cold 2248static void noinline ecb_cold
1813evpipe_init (EV_P) 2249evpipe_init (EV_P)
1814{ 2250{
1815 if (!ev_is_active (&pipe_w)) 2251 if (!ev_is_active (&pipe_w))
1816 { 2252 {
2253 int fds [2];
2254
1817# if EV_USE_EVENTFD 2255# if EV_USE_EVENTFD
2256 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2257 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2258 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2259 fds [1] = eventfd (0, 0);
1821 2260
1822 if (evfd >= 0) 2261 if (fds [1] < 0)
2262# endif
1823 { 2263 {
2264 while (pipe (fds))
2265 ev_syserr ("(libev) error creating signal/async pipe");
2266
2267 fd_intern (fds [0]);
2268 }
2269
1824 evpipe [0] = -1; 2270 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2271
1826 ev_io_set (&pipe_w, evfd, EV_READ); 2272 if (evpipe [1] < 0)
2273 evpipe [1] = fds [1]; /* first call, set write fd */
2274 else
2275 {
2276 /* on subsequent calls, do not change evpipe [1] */
2277 /* so that evpipe_write can always rely on its value. */
2278 /* this branch does not do anything sensible on windows, */
2279 /* so must not be executed on windows */
2280
2281 dup2 (fds [1], evpipe [1]);
2282 close (fds [1]);
2283 }
2284
2285 fd_intern (evpipe [1]);
2286
2287 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2288 ev_io_start (EV_A_ &pipe_w);
2289 ev_unref (EV_A); /* watcher should not keep loop alive */
2290 }
2291}
2292
2293inline_speed void
2294evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2295{
2296 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2297
2298 if (expect_true (*flag))
2299 return;
2300
2301 *flag = 1;
2302 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2303
2304 pipe_write_skipped = 1;
2305
2306 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2307
2308 if (pipe_write_wanted)
2309 {
2310 int old_errno;
2311
2312 pipe_write_skipped = 0;
2313 ECB_MEMORY_FENCE_RELEASE;
2314
2315 old_errno = errno; /* save errno because write will clobber it */
2316
2317#if EV_USE_EVENTFD
2318 if (evpipe [0] < 0)
2319 {
2320 uint64_t counter = 1;
2321 write (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2322 }
1828 else 2323 else
1829# endif 2324#endif
1830 { 2325 {
1831 while (pipe (evpipe)) 2326#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2327 WSABUF buf;
1833 2328 DWORD sent;
1834 fd_intern (evpipe [0]); 2329 buf.buf = &buf;
1835 fd_intern (evpipe [1]); 2330 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2331 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2332#else
1838
1839 ev_io_start (EV_A_ &pipe_w);
1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1841 }
1842}
1843
1844inline_speed void
1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846{
1847 if (expect_true (*flag))
1848 return;
1849
1850 *flag = 1;
1851
1852 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854 pipe_write_skipped = 1;
1855
1856 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858 if (pipe_write_wanted)
1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1864 old_errno = errno; /* save errno because write will clobber it */
1865
1866#if EV_USE_EVENTFD
1867 if (evfd >= 0)
1868 {
1869 uint64_t counter = 1;
1870 write (evfd, &counter, sizeof (uint64_t));
1871 }
1872 else
1873#endif
1874 {
1875 /* win32 people keep sending patches that change this write() to send() */
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877 /* so when you think this write should be a send instead, please find out */
1878 /* where your send() is from - it's definitely not the microsoft send, and */
1879 /* tell me. thank you. */
1880 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881 /* check the ev documentation on how to use this flag */
1882 write (evpipe [1], &(evpipe [1]), 1); 2333 write (evpipe [1], &(evpipe [1]), 1);
2334#endif
1883 } 2335 }
1884 2336
1885 errno = old_errno; 2337 errno = old_errno;
1886 } 2338 }
1887} 2339}
… …
1894 int i; 2346 int i;
1895 2347
1896 if (revents & EV_READ) 2348 if (revents & EV_READ)
1897 { 2349 {
1898#if EV_USE_EVENTFD 2350#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2351 if (evpipe [0] < 0)
1900 { 2352 {
1901 uint64_t counter; 2353 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2354 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2355 }
1904 else 2356 else
1905#endif 2357#endif
1906 { 2358 {
1907 char dummy; 2359 char dummy[4];
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2360#ifdef _WIN32
2361 WSABUF buf;
2362 DWORD recvd;
2363 DWORD flags = 0;
2364 buf.buf = dummy;
2365 buf.len = sizeof (dummy);
2366 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2367#else
1909 read (evpipe [0], &dummy, 1); 2368 read (evpipe [0], &dummy, sizeof (dummy));
2369#endif
1910 } 2370 }
1911 } 2371 }
1912 2372
1913 pipe_write_skipped = 0; 2373 pipe_write_skipped = 0;
2374
2375 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2376
1915#if EV_SIGNAL_ENABLE 2377#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2378 if (sig_pending)
1917 { 2379 {
1918 sig_pending = 0; 2380 sig_pending = 0;
2381
2382 ECB_MEMORY_FENCE;
1919 2383
1920 for (i = EV_NSIG - 1; i--; ) 2384 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2385 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2386 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2387 }
… …
1925 2389
1926#if EV_ASYNC_ENABLE 2390#if EV_ASYNC_ENABLE
1927 if (async_pending) 2391 if (async_pending)
1928 { 2392 {
1929 async_pending = 0; 2393 async_pending = 0;
2394
2395 ECB_MEMORY_FENCE;
1930 2396
1931 for (i = asynccnt; i--; ) 2397 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2398 if (asyncs [i]->sent)
1933 { 2399 {
1934 asyncs [i]->sent = 0; 2400 asyncs [i]->sent = 0;
2401 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2402 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2403 }
1937 } 2404 }
1938#endif 2405#endif
1939} 2406}
1940 2407
1941/*****************************************************************************/ 2408/*****************************************************************************/
1942 2409
1943void 2410void
1944ev_feed_signal (int signum) 2411ev_feed_signal (int signum) EV_THROW
1945{ 2412{
1946#if EV_MULTIPLICITY 2413#if EV_MULTIPLICITY
2414 EV_P;
2415 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2416 EV_A = signals [signum - 1].loop;
1948 2417
1949 if (!EV_A) 2418 if (!EV_A)
1950 return; 2419 return;
1951#endif 2420#endif
1952 2421
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2422 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2423 evpipe_write (EV_A_ &sig_pending);
1958} 2424}
1959 2425
1960static void 2426static void
… …
1966 2432
1967 ev_feed_signal (signum); 2433 ev_feed_signal (signum);
1968} 2434}
1969 2435
1970void noinline 2436void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2437ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2438{
1973 WL w; 2439 WL w;
1974 2440
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2441 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2442 return;
1977 2443
1978 --signum; 2444 --signum;
1979 2445
1980#if EV_MULTIPLICITY 2446#if EV_MULTIPLICITY
… …
1984 if (expect_false (signals [signum].loop != EV_A)) 2450 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2451 return;
1986#endif 2452#endif
1987 2453
1988 signals [signum].pending = 0; 2454 signals [signum].pending = 0;
2455 ECB_MEMORY_FENCE_RELEASE;
1989 2456
1990 for (w = signals [signum].head; w; w = w->next) 2457 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2458 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2459}
1993 2460
… …
2092#if EV_USE_SELECT 2559#if EV_USE_SELECT
2093# include "ev_select.c" 2560# include "ev_select.c"
2094#endif 2561#endif
2095 2562
2096int ecb_cold 2563int ecb_cold
2097ev_version_major (void) 2564ev_version_major (void) EV_THROW
2098{ 2565{
2099 return EV_VERSION_MAJOR; 2566 return EV_VERSION_MAJOR;
2100} 2567}
2101 2568
2102int ecb_cold 2569int ecb_cold
2103ev_version_minor (void) 2570ev_version_minor (void) EV_THROW
2104{ 2571{
2105 return EV_VERSION_MINOR; 2572 return EV_VERSION_MINOR;
2106} 2573}
2107 2574
2108/* return true if we are running with elevated privileges and should ignore env variables */ 2575/* return true if we are running with elevated privileges and should ignore env variables */
… …
2116 || getgid () != getegid (); 2583 || getgid () != getegid ();
2117#endif 2584#endif
2118} 2585}
2119 2586
2120unsigned int ecb_cold 2587unsigned int ecb_cold
2121ev_supported_backends (void) 2588ev_supported_backends (void) EV_THROW
2122{ 2589{
2123 unsigned int flags = 0; 2590 unsigned int flags = 0;
2124 2591
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2593 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2130 2597
2131 return flags; 2598 return flags;
2132} 2599}
2133 2600
2134unsigned int ecb_cold 2601unsigned int ecb_cold
2135ev_recommended_backends (void) 2602ev_recommended_backends (void) EV_THROW
2136{ 2603{
2137 unsigned int flags = ev_supported_backends (); 2604 unsigned int flags = ev_supported_backends ();
2138 2605
2139#ifndef __NetBSD__ 2606#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2607 /* kqueue is borked on everything but netbsd apparently */
… …
2152 2619
2153 return flags; 2620 return flags;
2154} 2621}
2155 2622
2156unsigned int ecb_cold 2623unsigned int ecb_cold
2157ev_embeddable_backends (void) 2624ev_embeddable_backends (void) EV_THROW
2158{ 2625{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2627
2161 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2628 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2162 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2629 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2164 2631
2165 return flags; 2632 return flags;
2166} 2633}
2167 2634
2168unsigned int 2635unsigned int
2169ev_backend (EV_P) 2636ev_backend (EV_P) EV_THROW
2170{ 2637{
2171 return backend; 2638 return backend;
2172} 2639}
2173 2640
2174#if EV_FEATURE_API 2641#if EV_FEATURE_API
2175unsigned int 2642unsigned int
2176ev_iteration (EV_P) 2643ev_iteration (EV_P) EV_THROW
2177{ 2644{
2178 return loop_count; 2645 return loop_count;
2179} 2646}
2180 2647
2181unsigned int 2648unsigned int
2182ev_depth (EV_P) 2649ev_depth (EV_P) EV_THROW
2183{ 2650{
2184 return loop_depth; 2651 return loop_depth;
2185} 2652}
2186 2653
2187void 2654void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2655ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2656{
2190 io_blocktime = interval; 2657 io_blocktime = interval;
2191} 2658}
2192 2659
2193void 2660void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2661ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2662{
2196 timeout_blocktime = interval; 2663 timeout_blocktime = interval;
2197} 2664}
2198 2665
2199void 2666void
2200ev_set_userdata (EV_P_ void *data) 2667ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2668{
2202 userdata = data; 2669 userdata = data;
2203} 2670}
2204 2671
2205void * 2672void *
2206ev_userdata (EV_P) 2673ev_userdata (EV_P) EV_THROW
2207{ 2674{
2208 return userdata; 2675 return userdata;
2209} 2676}
2210 2677
2211void 2678void
2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2679ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2213{ 2680{
2214 invoke_cb = invoke_pending_cb; 2681 invoke_cb = invoke_pending_cb;
2215} 2682}
2216 2683
2217void 2684void
2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2685ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2219{ 2686{
2220 release_cb = release; 2687 release_cb = release;
2221 acquire_cb = acquire; 2688 acquire_cb = acquire;
2222} 2689}
2223#endif 2690#endif
2224 2691
2225/* initialise a loop structure, must be zero-initialised */ 2692/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2693static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2694loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2695{
2229 if (!backend) 2696 if (!backend)
2230 { 2697 {
2231 origflags = flags; 2698 origflags = flags;
2232 2699
… …
2277#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
2278 async_pending = 0; 2745 async_pending = 0;
2279#endif 2746#endif
2280 pipe_write_skipped = 0; 2747 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 2748 pipe_write_wanted = 0;
2749 evpipe [0] = -1;
2750 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 2751#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2752 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 2753#endif
2285#if EV_USE_SIGNALFD 2754#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2755 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2337 EV_INVOKE_PENDING; 2806 EV_INVOKE_PENDING;
2338 } 2807 }
2339#endif 2808#endif
2340 2809
2341#if EV_CHILD_ENABLE 2810#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2811 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2812 {
2344 ev_ref (EV_A); /* child watcher */ 2813 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2814 ev_signal_stop (EV_A_ &childev);
2346 } 2815 }
2347#endif 2816#endif
… …
2349 if (ev_is_active (&pipe_w)) 2818 if (ev_is_active (&pipe_w))
2350 { 2819 {
2351 /*ev_ref (EV_A);*/ 2820 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 2821 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 2822
2354#if EV_USE_EVENTFD
2355 if (evfd >= 0)
2356 close (evfd);
2357#endif
2358
2359 if (evpipe [0] >= 0)
2360 {
2361 EV_WIN32_CLOSE_FD (evpipe [0]); 2823 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 2824 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 2825 }
2365 2826
2366#if EV_USE_SIGNALFD 2827#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 2828 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 2829 close (sigfd);
… …
2454#endif 2915#endif
2455#if EV_USE_INOTIFY 2916#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 2917 infy_fork (EV_A);
2457#endif 2918#endif
2458 2919
2920#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 2921 if (ev_is_active (&pipe_w) && postfork != 2)
2460 { 2922 {
2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2923 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2462 2924
2463 ev_ref (EV_A); 2925 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 2926 ev_io_stop (EV_A_ &pipe_w);
2465 2927
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 2928 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 2929 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 }
2476 2930
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 2931 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 2932 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 2933 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif
2482 } 2934 }
2935#endif
2483 2936
2484 postfork = 0; 2937 postfork = 0;
2485} 2938}
2486 2939
2487#if EV_MULTIPLICITY 2940#if EV_MULTIPLICITY
2488 2941
2489struct ev_loop * ecb_cold 2942struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 2943ev_loop_new (unsigned int flags) EV_THROW
2491{ 2944{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 2946
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 2947 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 2948 loop_init (EV_A_ flags);
… …
2539} 2992}
2540#endif 2993#endif
2541 2994
2542#if EV_FEATURE_API 2995#if EV_FEATURE_API
2543void ecb_cold 2996void ecb_cold
2544ev_verify (EV_P) 2997ev_verify (EV_P) EV_THROW
2545{ 2998{
2546#if EV_VERIFY 2999#if EV_VERIFY
2547 int i; 3000 int i;
2548 WL w; 3001 WL w, w2;
2549 3002
2550 assert (activecnt >= -1); 3003 assert (activecnt >= -1);
2551 3004
2552 assert (fdchangemax >= fdchangecnt); 3005 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 3006 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3007 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 3008
2556 assert (anfdmax >= 0); 3009 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 3010 for (i = 0; i < anfdmax; ++i)
3011 {
3012 int j = 0;
3013
2558 for (w = anfds [i].head; w; w = w->next) 3014 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 3015 {
2560 verify_watcher (EV_A_ (W)w); 3016 verify_watcher (EV_A_ (W)w);
3017
3018 if (j++ & 1)
3019 {
3020 assert (("libev: io watcher list contains a loop", w != w2));
3021 w2 = w2->next;
3022 }
3023
2561 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3024 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2562 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3025 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563 } 3026 }
3027 }
2564 3028
2565 assert (timermax >= timercnt); 3029 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 3030 verify_heap (EV_A_ timers, timercnt);
2567 3031
2568#if EV_PERIODIC_ENABLE 3032#if EV_PERIODIC_ENABLE
… …
2618#if EV_MULTIPLICITY 3082#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 3083struct ev_loop * ecb_cold
2620#else 3084#else
2621int 3085int
2622#endif 3086#endif
2623ev_default_loop (unsigned int flags) 3087ev_default_loop (unsigned int flags) EV_THROW
2624{ 3088{
2625 if (!ev_default_loop_ptr) 3089 if (!ev_default_loop_ptr)
2626 { 3090 {
2627#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 3092 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 3111
2648 return ev_default_loop_ptr; 3112 return ev_default_loop_ptr;
2649} 3113}
2650 3114
2651void 3115void
2652ev_loop_fork (EV_P) 3116ev_loop_fork (EV_P) EV_THROW
2653{ 3117{
2654 postfork = 1; /* must be in line with ev_default_fork */ 3118 postfork = 1;
2655} 3119}
2656 3120
2657/*****************************************************************************/ 3121/*****************************************************************************/
2658 3122
2659void 3123void
… …
2661{ 3125{
2662 EV_CB_INVOKE ((W)w, revents); 3126 EV_CB_INVOKE ((W)w, revents);
2663} 3127}
2664 3128
2665unsigned int 3129unsigned int
2666ev_pending_count (EV_P) 3130ev_pending_count (EV_P) EV_THROW
2667{ 3131{
2668 int pri; 3132 int pri;
2669 unsigned int count = 0; 3133 unsigned int count = 0;
2670 3134
2671 for (pri = NUMPRI; pri--; ) 3135 for (pri = NUMPRI; pri--; )
… …
2675} 3139}
2676 3140
2677void noinline 3141void noinline
2678ev_invoke_pending (EV_P) 3142ev_invoke_pending (EV_P)
2679{ 3143{
2680 int pri; 3144 pendingpri = NUMPRI;
2681 3145
2682 for (pri = NUMPRI; pri--; ) 3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3147 {
3148 --pendingpri;
3149
2683 while (pendingcnt [pri]) 3150 while (pendingcnt [pendingpri])
2684 { 3151 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3152 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3153
2687 p->w->pending = 0; 3154 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3155 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3156 EV_FREQUENT_CHECK;
2690 } 3157 }
3158 }
2691} 3159}
2692 3160
2693#if EV_IDLE_ENABLE 3161#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3162/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3163/* only when higher priorities are idle" logic */
… …
2785{ 3253{
2786 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2787 3255
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3256 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3257 {
2790 int feed_count = 0;
2791
2792 do 3258 do
2793 { 3259 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3260 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3261
2796 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3262 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2930 3396
2931 mn_now = ev_rt_now; 3397 mn_now = ev_rt_now;
2932 } 3398 }
2933} 3399}
2934 3400
2935void 3401int
2936ev_run (EV_P_ int flags) 3402ev_run (EV_P_ int flags)
2937{ 3403{
2938#if EV_FEATURE_API 3404#if EV_FEATURE_API
2939 ++loop_depth; 3405 ++loop_depth;
2940#endif 3406#endif
… …
3055 backend_poll (EV_A_ waittime); 3521 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3522 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3523
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3524 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3525
3526 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3527 if (pipe_write_skipped)
3061 { 3528 {
3062 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3529 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3063 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3530 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3531 }
… …
3097 loop_done = EVBREAK_CANCEL; 3564 loop_done = EVBREAK_CANCEL;
3098 3565
3099#if EV_FEATURE_API 3566#if EV_FEATURE_API
3100 --loop_depth; 3567 --loop_depth;
3101#endif 3568#endif
3569
3570 return activecnt;
3102} 3571}
3103 3572
3104void 3573void
3105ev_break (EV_P_ int how) 3574ev_break (EV_P_ int how) EV_THROW
3106{ 3575{
3107 loop_done = how; 3576 loop_done = how;
3108} 3577}
3109 3578
3110void 3579void
3111ev_ref (EV_P) 3580ev_ref (EV_P) EV_THROW
3112{ 3581{
3113 ++activecnt; 3582 ++activecnt;
3114} 3583}
3115 3584
3116void 3585void
3117ev_unref (EV_P) 3586ev_unref (EV_P) EV_THROW
3118{ 3587{
3119 --activecnt; 3588 --activecnt;
3120} 3589}
3121 3590
3122void 3591void
3123ev_now_update (EV_P) 3592ev_now_update (EV_P) EV_THROW
3124{ 3593{
3125 time_update (EV_A_ 1e100); 3594 time_update (EV_A_ 1e100);
3126} 3595}
3127 3596
3128void 3597void
3129ev_suspend (EV_P) 3598ev_suspend (EV_P) EV_THROW
3130{ 3599{
3131 ev_now_update (EV_A); 3600 ev_now_update (EV_A);
3132} 3601}
3133 3602
3134void 3603void
3135ev_resume (EV_P) 3604ev_resume (EV_P) EV_THROW
3136{ 3605{
3137 ev_tstamp mn_prev = mn_now; 3606 ev_tstamp mn_prev = mn_now;
3138 3607
3139 ev_now_update (EV_A); 3608 ev_now_update (EV_A);
3140 timers_reschedule (EV_A_ mn_now - mn_prev); 3609 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3179 w->pending = 0; 3648 w->pending = 0;
3180 } 3649 }
3181} 3650}
3182 3651
3183int 3652int
3184ev_clear_pending (EV_P_ void *w) 3653ev_clear_pending (EV_P_ void *w) EV_THROW
3185{ 3654{
3186 W w_ = (W)w; 3655 W w_ = (W)w;
3187 int pending = w_->pending; 3656 int pending = w_->pending;
3188 3657
3189 if (expect_true (pending)) 3658 if (expect_true (pending))
… …
3222} 3691}
3223 3692
3224/*****************************************************************************/ 3693/*****************************************************************************/
3225 3694
3226void noinline 3695void noinline
3227ev_io_start (EV_P_ ev_io *w) 3696ev_io_start (EV_P_ ev_io *w) EV_THROW
3228{ 3697{
3229 int fd = w->fd; 3698 int fd = w->fd;
3230 3699
3231 if (expect_false (ev_is_active (w))) 3700 if (expect_false (ev_is_active (w)))
3232 return; 3701 return;
… …
3238 3707
3239 ev_start (EV_A_ (W)w, 1); 3708 ev_start (EV_A_ (W)w, 1);
3240 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3709 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3241 wlist_add (&anfds[fd].head, (WL)w); 3710 wlist_add (&anfds[fd].head, (WL)w);
3242 3711
3712 /* common bug, apparently */
3713 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3714
3243 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3715 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3244 w->events &= ~EV__IOFDSET; 3716 w->events &= ~EV__IOFDSET;
3245 3717
3246 EV_FREQUENT_CHECK; 3718 EV_FREQUENT_CHECK;
3247} 3719}
3248 3720
3249void noinline 3721void noinline
3250ev_io_stop (EV_P_ ev_io *w) 3722ev_io_stop (EV_P_ ev_io *w) EV_THROW
3251{ 3723{
3252 clear_pending (EV_A_ (W)w); 3724 clear_pending (EV_A_ (W)w);
3253 if (expect_false (!ev_is_active (w))) 3725 if (expect_false (!ev_is_active (w)))
3254 return; 3726 return;
3255 3727
… …
3264 3736
3265 EV_FREQUENT_CHECK; 3737 EV_FREQUENT_CHECK;
3266} 3738}
3267 3739
3268void noinline 3740void noinline
3269ev_timer_start (EV_P_ ev_timer *w) 3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3270{ 3742{
3271 if (expect_false (ev_is_active (w))) 3743 if (expect_false (ev_is_active (w)))
3272 return; 3744 return;
3273 3745
3274 ev_at (w) += mn_now; 3746 ev_at (w) += mn_now;
… …
3288 3760
3289 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3761 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3290} 3762}
3291 3763
3292void noinline 3764void noinline
3293ev_timer_stop (EV_P_ ev_timer *w) 3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3294{ 3766{
3295 clear_pending (EV_A_ (W)w); 3767 clear_pending (EV_A_ (W)w);
3296 if (expect_false (!ev_is_active (w))) 3768 if (expect_false (!ev_is_active (w)))
3297 return; 3769 return;
3298 3770
… …
3318 3790
3319 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
3320} 3792}
3321 3793
3322void noinline 3794void noinline
3323ev_timer_again (EV_P_ ev_timer *w) 3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3324{ 3796{
3325 EV_FREQUENT_CHECK; 3797 EV_FREQUENT_CHECK;
3326 3798
3327 clear_pending (EV_A_ (W)w); 3799 clear_pending (EV_A_ (W)w);
3328 3800
… …
3345 3817
3346 EV_FREQUENT_CHECK; 3818 EV_FREQUENT_CHECK;
3347} 3819}
3348 3820
3349ev_tstamp 3821ev_tstamp
3350ev_timer_remaining (EV_P_ ev_timer *w) 3822ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3351{ 3823{
3352 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3353} 3825}
3354 3826
3355#if EV_PERIODIC_ENABLE 3827#if EV_PERIODIC_ENABLE
3356void noinline 3828void noinline
3357ev_periodic_start (EV_P_ ev_periodic *w) 3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3358{ 3830{
3359 if (expect_false (ev_is_active (w))) 3831 if (expect_false (ev_is_active (w)))
3360 return; 3832 return;
3361 3833
3362 if (w->reschedule_cb) 3834 if (w->reschedule_cb)
… …
3382 3854
3383 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3855 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3384} 3856}
3385 3857
3386void noinline 3858void noinline
3387ev_periodic_stop (EV_P_ ev_periodic *w) 3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3388{ 3860{
3389 clear_pending (EV_A_ (W)w); 3861 clear_pending (EV_A_ (W)w);
3390 if (expect_false (!ev_is_active (w))) 3862 if (expect_false (!ev_is_active (w)))
3391 return; 3863 return;
3392 3864
… …
3410 3882
3411 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
3412} 3884}
3413 3885
3414void noinline 3886void noinline
3415ev_periodic_again (EV_P_ ev_periodic *w) 3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3416{ 3888{
3417 /* TODO: use adjustheap and recalculation */ 3889 /* TODO: use adjustheap and recalculation */
3418 ev_periodic_stop (EV_A_ w); 3890 ev_periodic_stop (EV_A_ w);
3419 ev_periodic_start (EV_A_ w); 3891 ev_periodic_start (EV_A_ w);
3420} 3892}
… …
3425#endif 3897#endif
3426 3898
3427#if EV_SIGNAL_ENABLE 3899#if EV_SIGNAL_ENABLE
3428 3900
3429void noinline 3901void noinline
3430ev_signal_start (EV_P_ ev_signal *w) 3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3431{ 3903{
3432 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
3433 return; 3905 return;
3434 3906
3435 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3907 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3437#if EV_MULTIPLICITY 3909#if EV_MULTIPLICITY
3438 assert (("libev: a signal must not be attached to two different loops", 3910 assert (("libev: a signal must not be attached to two different loops",
3439 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3911 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3440 3912
3441 signals [w->signum - 1].loop = EV_A; 3913 signals [w->signum - 1].loop = EV_A;
3914 ECB_MEMORY_FENCE_RELEASE;
3442#endif 3915#endif
3443 3916
3444 EV_FREQUENT_CHECK; 3917 EV_FREQUENT_CHECK;
3445 3918
3446#if EV_USE_SIGNALFD 3919#if EV_USE_SIGNALFD
… …
3506 3979
3507 EV_FREQUENT_CHECK; 3980 EV_FREQUENT_CHECK;
3508} 3981}
3509 3982
3510void noinline 3983void noinline
3511ev_signal_stop (EV_P_ ev_signal *w) 3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3512{ 3985{
3513 clear_pending (EV_A_ (W)w); 3986 clear_pending (EV_A_ (W)w);
3514 if (expect_false (!ev_is_active (w))) 3987 if (expect_false (!ev_is_active (w)))
3515 return; 3988 return;
3516 3989
… …
3547#endif 4020#endif
3548 4021
3549#if EV_CHILD_ENABLE 4022#if EV_CHILD_ENABLE
3550 4023
3551void 4024void
3552ev_child_start (EV_P_ ev_child *w) 4025ev_child_start (EV_P_ ev_child *w) EV_THROW
3553{ 4026{
3554#if EV_MULTIPLICITY 4027#if EV_MULTIPLICITY
3555 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4028 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3556#endif 4029#endif
3557 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
… …
3564 4037
3565 EV_FREQUENT_CHECK; 4038 EV_FREQUENT_CHECK;
3566} 4039}
3567 4040
3568void 4041void
3569ev_child_stop (EV_P_ ev_child *w) 4042ev_child_stop (EV_P_ ev_child *w) EV_THROW
3570{ 4043{
3571 clear_pending (EV_A_ (W)w); 4044 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 4045 if (expect_false (!ev_is_active (w)))
3573 return; 4046 return;
3574 4047
… …
3601# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4074# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3602 4075
3603static void noinline 4076static void noinline
3604infy_add (EV_P_ ev_stat *w) 4077infy_add (EV_P_ ev_stat *w)
3605{ 4078{
3606 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); 4079 w->wd = inotify_add_watch (fs_fd, w->path,
4080 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4081 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4082 | IN_DONT_FOLLOW | IN_MASK_ADD);
3607 4083
3608 if (w->wd >= 0) 4084 if (w->wd >= 0)
3609 { 4085 {
3610 struct statfs sfs; 4086 struct statfs sfs;
3611 4087
… …
3615 4091
3616 if (!fs_2625) 4092 if (!fs_2625)
3617 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4093 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3618 else if (!statfs (w->path, &sfs) 4094 else if (!statfs (w->path, &sfs)
3619 && (sfs.f_type == 0x1373 /* devfs */ 4095 && (sfs.f_type == 0x1373 /* devfs */
4096 || sfs.f_type == 0x4006 /* fat */
4097 || sfs.f_type == 0x4d44 /* msdos */
3620 || sfs.f_type == 0xEF53 /* ext2/3 */ 4098 || sfs.f_type == 0xEF53 /* ext2/3 */
4099 || sfs.f_type == 0x72b6 /* jffs2 */
4100 || sfs.f_type == 0x858458f6 /* ramfs */
4101 || sfs.f_type == 0x5346544e /* ntfs */
3621 || sfs.f_type == 0x3153464a /* jfs */ 4102 || sfs.f_type == 0x3153464a /* jfs */
4103 || sfs.f_type == 0x9123683e /* btrfs */
3622 || sfs.f_type == 0x52654973 /* reiser3 */ 4104 || sfs.f_type == 0x52654973 /* reiser3 */
3623 || sfs.f_type == 0x01021994 /* tempfs */ 4105 || sfs.f_type == 0x01021994 /* tmpfs */
3624 || sfs.f_type == 0x58465342 /* xfs */)) 4106 || sfs.f_type == 0x58465342 /* xfs */))
3625 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4107 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3626 else 4108 else
3627 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4109 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3628 } 4110 }
… …
3826#else 4308#else
3827# define EV_LSTAT(p,b) lstat (p, b) 4309# define EV_LSTAT(p,b) lstat (p, b)
3828#endif 4310#endif
3829 4311
3830void 4312void
3831ev_stat_stat (EV_P_ ev_stat *w) 4313ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3832{ 4314{
3833 if (lstat (w->path, &w->attr) < 0) 4315 if (lstat (w->path, &w->attr) < 0)
3834 w->attr.st_nlink = 0; 4316 w->attr.st_nlink = 0;
3835 else if (!w->attr.st_nlink) 4317 else if (!w->attr.st_nlink)
3836 w->attr.st_nlink = 1; 4318 w->attr.st_nlink = 1;
… …
3875 ev_feed_event (EV_A_ w, EV_STAT); 4357 ev_feed_event (EV_A_ w, EV_STAT);
3876 } 4358 }
3877} 4359}
3878 4360
3879void 4361void
3880ev_stat_start (EV_P_ ev_stat *w) 4362ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3881{ 4363{
3882 if (expect_false (ev_is_active (w))) 4364 if (expect_false (ev_is_active (w)))
3883 return; 4365 return;
3884 4366
3885 ev_stat_stat (EV_A_ w); 4367 ev_stat_stat (EV_A_ w);
… …
3906 4388
3907 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
3908} 4390}
3909 4391
3910void 4392void
3911ev_stat_stop (EV_P_ ev_stat *w) 4393ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3912{ 4394{
3913 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
3914 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
3915 return; 4397 return;
3916 4398
… …
3932} 4414}
3933#endif 4415#endif
3934 4416
3935#if EV_IDLE_ENABLE 4417#if EV_IDLE_ENABLE
3936void 4418void
3937ev_idle_start (EV_P_ ev_idle *w) 4419ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3938{ 4420{
3939 if (expect_false (ev_is_active (w))) 4421 if (expect_false (ev_is_active (w)))
3940 return; 4422 return;
3941 4423
3942 pri_adjust (EV_A_ (W)w); 4424 pri_adjust (EV_A_ (W)w);
… …
3955 4437
3956 EV_FREQUENT_CHECK; 4438 EV_FREQUENT_CHECK;
3957} 4439}
3958 4440
3959void 4441void
3960ev_idle_stop (EV_P_ ev_idle *w) 4442ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3961{ 4443{
3962 clear_pending (EV_A_ (W)w); 4444 clear_pending (EV_A_ (W)w);
3963 if (expect_false (!ev_is_active (w))) 4445 if (expect_false (!ev_is_active (w)))
3964 return; 4446 return;
3965 4447
… …
3979} 4461}
3980#endif 4462#endif
3981 4463
3982#if EV_PREPARE_ENABLE 4464#if EV_PREPARE_ENABLE
3983void 4465void
3984ev_prepare_start (EV_P_ ev_prepare *w) 4466ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3985{ 4467{
3986 if (expect_false (ev_is_active (w))) 4468 if (expect_false (ev_is_active (w)))
3987 return; 4469 return;
3988 4470
3989 EV_FREQUENT_CHECK; 4471 EV_FREQUENT_CHECK;
… …
3994 4476
3995 EV_FREQUENT_CHECK; 4477 EV_FREQUENT_CHECK;
3996} 4478}
3997 4479
3998void 4480void
3999ev_prepare_stop (EV_P_ ev_prepare *w) 4481ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4000{ 4482{
4001 clear_pending (EV_A_ (W)w); 4483 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4484 if (expect_false (!ev_is_active (w)))
4003 return; 4485 return;
4004 4486
… …
4017} 4499}
4018#endif 4500#endif
4019 4501
4020#if EV_CHECK_ENABLE 4502#if EV_CHECK_ENABLE
4021void 4503void
4022ev_check_start (EV_P_ ev_check *w) 4504ev_check_start (EV_P_ ev_check *w) EV_THROW
4023{ 4505{
4024 if (expect_false (ev_is_active (w))) 4506 if (expect_false (ev_is_active (w)))
4025 return; 4507 return;
4026 4508
4027 EV_FREQUENT_CHECK; 4509 EV_FREQUENT_CHECK;
… …
4032 4514
4033 EV_FREQUENT_CHECK; 4515 EV_FREQUENT_CHECK;
4034} 4516}
4035 4517
4036void 4518void
4037ev_check_stop (EV_P_ ev_check *w) 4519ev_check_stop (EV_P_ ev_check *w) EV_THROW
4038{ 4520{
4039 clear_pending (EV_A_ (W)w); 4521 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4522 if (expect_false (!ev_is_active (w)))
4041 return; 4523 return;
4042 4524
… …
4055} 4537}
4056#endif 4538#endif
4057 4539
4058#if EV_EMBED_ENABLE 4540#if EV_EMBED_ENABLE
4059void noinline 4541void noinline
4060ev_embed_sweep (EV_P_ ev_embed *w) 4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4061{ 4543{
4062 ev_run (w->other, EVRUN_NOWAIT); 4544 ev_run (w->other, EVRUN_NOWAIT);
4063} 4545}
4064 4546
4065static void 4547static void
… …
4113 ev_idle_stop (EV_A_ idle); 4595 ev_idle_stop (EV_A_ idle);
4114} 4596}
4115#endif 4597#endif
4116 4598
4117void 4599void
4118ev_embed_start (EV_P_ ev_embed *w) 4600ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4119{ 4601{
4120 if (expect_false (ev_is_active (w))) 4602 if (expect_false (ev_is_active (w)))
4121 return; 4603 return;
4122 4604
4123 { 4605 {
… …
4144 4626
4145 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
4146} 4628}
4147 4629
4148void 4630void
4149ev_embed_stop (EV_P_ ev_embed *w) 4631ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4150{ 4632{
4151 clear_pending (EV_A_ (W)w); 4633 clear_pending (EV_A_ (W)w);
4152 if (expect_false (!ev_is_active (w))) 4634 if (expect_false (!ev_is_active (w)))
4153 return; 4635 return;
4154 4636
… …
4164} 4646}
4165#endif 4647#endif
4166 4648
4167#if EV_FORK_ENABLE 4649#if EV_FORK_ENABLE
4168void 4650void
4169ev_fork_start (EV_P_ ev_fork *w) 4651ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4170{ 4652{
4171 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
4172 return; 4654 return;
4173 4655
4174 EV_FREQUENT_CHECK; 4656 EV_FREQUENT_CHECK;
… …
4179 4661
4180 EV_FREQUENT_CHECK; 4662 EV_FREQUENT_CHECK;
4181} 4663}
4182 4664
4183void 4665void
4184ev_fork_stop (EV_P_ ev_fork *w) 4666ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4185{ 4667{
4186 clear_pending (EV_A_ (W)w); 4668 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4669 if (expect_false (!ev_is_active (w)))
4188 return; 4670 return;
4189 4671
… …
4202} 4684}
4203#endif 4685#endif
4204 4686
4205#if EV_CLEANUP_ENABLE 4687#if EV_CLEANUP_ENABLE
4206void 4688void
4207ev_cleanup_start (EV_P_ ev_cleanup *w) 4689ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4208{ 4690{
4209 if (expect_false (ev_is_active (w))) 4691 if (expect_false (ev_is_active (w)))
4210 return; 4692 return;
4211 4693
4212 EV_FREQUENT_CHECK; 4694 EV_FREQUENT_CHECK;
… …
4219 ev_unref (EV_A); 4701 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK; 4702 EV_FREQUENT_CHECK;
4221} 4703}
4222 4704
4223void 4705void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w) 4706ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4225{ 4707{
4226 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w))) 4709 if (expect_false (!ev_is_active (w)))
4228 return; 4710 return;
4229 4711
… …
4243} 4725}
4244#endif 4726#endif
4245 4727
4246#if EV_ASYNC_ENABLE 4728#if EV_ASYNC_ENABLE
4247void 4729void
4248ev_async_start (EV_P_ ev_async *w) 4730ev_async_start (EV_P_ ev_async *w) EV_THROW
4249{ 4731{
4250 if (expect_false (ev_is_active (w))) 4732 if (expect_false (ev_is_active (w)))
4251 return; 4733 return;
4252 4734
4253 w->sent = 0; 4735 w->sent = 0;
… …
4262 4744
4263 EV_FREQUENT_CHECK; 4745 EV_FREQUENT_CHECK;
4264} 4746}
4265 4747
4266void 4748void
4267ev_async_stop (EV_P_ ev_async *w) 4749ev_async_stop (EV_P_ ev_async *w) EV_THROW
4268{ 4750{
4269 clear_pending (EV_A_ (W)w); 4751 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4752 if (expect_false (!ev_is_active (w)))
4271 return; 4753 return;
4272 4754
… …
4283 4765
4284 EV_FREQUENT_CHECK; 4766 EV_FREQUENT_CHECK;
4285} 4767}
4286 4768
4287void 4769void
4288ev_async_send (EV_P_ ev_async *w) 4770ev_async_send (EV_P_ ev_async *w) EV_THROW
4289{ 4771{
4290 w->sent = 1; 4772 w->sent = 1;
4291 evpipe_write (EV_A_ &async_pending); 4773 evpipe_write (EV_A_ &async_pending);
4292} 4774}
4293#endif 4775#endif
… …
4330 4812
4331 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4813 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4332} 4814}
4333 4815
4334void 4816void
4335ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4817ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4336{ 4818{
4337 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4819 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4338 4820
4339 if (expect_false (!once)) 4821 if (expect_false (!once))
4340 { 4822 {
… …
4362 4844
4363/*****************************************************************************/ 4845/*****************************************************************************/
4364 4846
4365#if EV_WALK_ENABLE 4847#if EV_WALK_ENABLE
4366void ecb_cold 4848void ecb_cold
4367ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4849ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4368{ 4850{
4369 int i, j; 4851 int i, j;
4370 ev_watcher_list *wl, *wn; 4852 ev_watcher_list *wl, *wn;
4371 4853
4372 if (types & (EV_IO | EV_EMBED)) 4854 if (types & (EV_IO | EV_EMBED))

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