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Comparing libev/ev.c (file contents):
Revision 1.411 by root, Tue Feb 21 04:34:02 2012 UTC vs.
Revision 1.477 by root, Sun Aug 9 00:13:28 2015 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
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
… …
219#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
220 221
221/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
222 223
223/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
224#if defined (EV_NSIG) 225#if defined EV_NSIG
225/* use what's provided */ 226/* use what's provided */
226#elif defined (NSIG) 227#elif defined NSIG
227# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
228#elif defined(_NSIG) 229#elif defined _NSIG
229# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
230#elif defined (SIGMAX) 231#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
232#elif defined (SIG_MAX) 233#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
234#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
236#elif defined (MAXSIG) 237#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
238#elif defined (MAX_SIG) 239#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
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
260# endif 258# endif
261#endif 259#endif
262 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
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
265# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 273# else
267# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
268# endif 275# endif
269#endif 276#endif
… …
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
… …
395# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
396#endif 413#endif
397 414
398#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 418# include <sys/select.h>
402# endif 419# endif
403#endif 420#endif
404 421
405#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
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")
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__
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")
582 #endif 695 #endif
583 #endif 696 #endif
584#endif 697#endif
585 698
586#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
587 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 712 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588 #define ECB_MEMORY_FENCE __sync_synchronize () 713 #define ECB_MEMORY_FENCE __sync_synchronize ()
589 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 714 #elif _MSC_VER >= 1500 /* VC++ 2008 */
590 /*#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()
591 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 720 #elif _MSC_VER >= 1400 /* VC++ 2005 */
592 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 721 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 722 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594 #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 */
595 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 724 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596 #elif defined(_WIN32) 725 #elif defined _WIN32
597 #include <WinNT.h> 726 #include <WinNT.h>
598 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 727 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #include <mbarrier.h> 729 #include <mbarrier.h>
601 #define ECB_MEMORY_FENCE __machine_rw_barrier () 730 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
602 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 731 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 732 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
733 #elif __xlC__
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)
604 #endif 752 #endif
605#endif 753#endif
606 754
607#ifndef ECB_MEMORY_FENCE 755#ifndef ECB_MEMORY_FENCE
608 #if !ECB_AVOID_PTHREADS 756 #if !ECB_AVOID_PTHREADS
… …
620 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 768 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
621 #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)
622 #endif 770 #endif
623#endif 771#endif
624 772
625#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 773#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 774 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627#endif 775#endif
628 776
629#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 777#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 778 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631#endif 779#endif
632 780
633/*****************************************************************************/ 781/*****************************************************************************/
634 782
635#define ECB_C99 (__STDC_VERSION__ >= 199901L) 783#if ECB_CPP
636
637#if __cplusplus
638 #define ecb_inline static inline 784 #define ecb_inline static inline
639#elif ECB_GCC_VERSION(2,5) 785#elif ECB_GCC_VERSION(2,5)
640 #define ecb_inline static __inline__ 786 #define ecb_inline static __inline__
641#elif ECB_C99 787#elif ECB_C99
642 #define ecb_inline static inline 788 #define ecb_inline static inline
… …
656 802
657#define ECB_CONCAT_(a, b) a ## b 803#define ECB_CONCAT_(a, b) a ## b
658#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 804#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
659#define ECB_STRINGIFY_(a) # a 805#define ECB_STRINGIFY_(a) # a
660#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))
661 808
662#define ecb_function_ ecb_inline 809#define ecb_function_ ecb_inline
663 810
664#if ECB_GCC_VERSION(3,1) 811#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
665 #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)
666 #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)
667 #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)
668 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 834 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
669#else 835#else
670 #define ecb_attribute(attrlist)
671 #define ecb_is_constant(expr) 0
672 #define ecb_expect(expr,value) (expr)
673 #define ecb_prefetch(addr,rw,locality) 836 #define ecb_prefetch(addr,rw,locality)
674#endif 837#endif
675 838
676/* no emulation for ecb_decltype */ 839/* no emulation for ecb_decltype */
677#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; };
678 #define ecb_decltype(x) __decltype(x) 843 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
679#elif ECB_GCC_VERSION(3,0) 844#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
680 #define ecb_decltype(x) __typeof(x) 845 #define ecb_decltype(x) __typeof__ (x)
681#endif 846#endif
682 847
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
683#define ecb_noinline ecb_attribute ((__noinline__)) 865 #define ecb_noinline ecb_attribute ((__noinline__))
684#define ecb_noreturn ecb_attribute ((__noreturn__)) 866#endif
867
685#define ecb_unused ecb_attribute ((__unused__)) 868#define ecb_unused ecb_attribute ((__unused__))
686#define ecb_const ecb_attribute ((__const__)) 869#define ecb_const ecb_attribute ((__const__))
687#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
688 883
689#if ECB_GCC_VERSION(4,3) 884#if ECB_GCC_VERSION(4,3)
690 #define ecb_artificial ecb_attribute ((__artificial__)) 885 #define ecb_artificial ecb_attribute ((__artificial__))
691 #define ecb_hot ecb_attribute ((__hot__)) 886 #define ecb_hot ecb_attribute ((__hot__))
692 #define ecb_cold ecb_attribute ((__cold__)) 887 #define ecb_cold ecb_attribute ((__cold__))
… …
704/* for compatibility to the rest of the world */ 899/* for compatibility to the rest of the world */
705#define ecb_likely(expr) ecb_expect_true (expr) 900#define ecb_likely(expr) ecb_expect_true (expr)
706#define ecb_unlikely(expr) ecb_expect_false (expr) 901#define ecb_unlikely(expr) ecb_expect_false (expr)
707 902
708/* count trailing zero bits and count # of one bits */ 903/* count trailing zero bits and count # of one bits */
709#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))
710 /* 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 */
711 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 909 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
712 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 910 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
713 #define ecb_ctz32(x) __builtin_ctz (x) 911 #define ecb_ctz32(x) __builtin_ctz (x)
714 #define ecb_ctz64(x) __builtin_ctzll (x) 912 #define ecb_ctz64(x) __builtin_ctzll (x)
715 #define ecb_popcount32(x) __builtin_popcount (x) 913 #define ecb_popcount32(x) __builtin_popcount (x)
716 /* no popcountll */ 914 /* no popcountll */
717#else 915#else
718 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
719 ecb_function_ int 917 ecb_function_ ecb_const int
720 ecb_ctz32 (uint32_t x) 918 ecb_ctz32 (uint32_t x)
721 { 919 {
722 int r = 0; 920 int r = 0;
723 921
724 x &= ~x + 1; /* this isolates the lowest bit */ 922 x &= ~x + 1; /* this isolates the lowest bit */
… …
738#endif 936#endif
739 937
740 return r; 938 return r;
741 } 939 }
742 940
743 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
744 ecb_function_ int 942 ecb_function_ ecb_const int
745 ecb_ctz64 (uint64_t x) 943 ecb_ctz64 (uint64_t x)
746 { 944 {
747 int shift = x & 0xffffffffU ? 0 : 32; 945 int shift = x & 0xffffffffU ? 0 : 32;
748 return ecb_ctz32 (x >> shift) + shift; 946 return ecb_ctz32 (x >> shift) + shift;
749 } 947 }
750 948
751 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
752 ecb_function_ int 950 ecb_function_ ecb_const int
753 ecb_popcount32 (uint32_t x) 951 ecb_popcount32 (uint32_t x)
754 { 952 {
755 x -= (x >> 1) & 0x55555555; 953 x -= (x >> 1) & 0x55555555;
756 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 954 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
757 x = ((x >> 4) + x) & 0x0f0f0f0f; 955 x = ((x >> 4) + x) & 0x0f0f0f0f;
758 x *= 0x01010101; 956 x *= 0x01010101;
759 957
760 return x >> 24; 958 return x >> 24;
761 } 959 }
762 960
763 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
764 ecb_function_ int ecb_ld32 (uint32_t x) 962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
765 { 963 {
766 int r = 0; 964 int r = 0;
767 965
768 if (x >> 16) { x >>= 16; r += 16; } 966 if (x >> 16) { x >>= 16; r += 16; }
769 if (x >> 8) { x >>= 8; r += 8; } 967 if (x >> 8) { x >>= 8; r += 8; }
… …
772 if (x >> 1) { r += 1; } 970 if (x >> 1) { r += 1; }
773 971
774 return r; 972 return r;
775 } 973 }
776 974
777 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
778 ecb_function_ int ecb_ld64 (uint64_t x) 976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
779 { 977 {
780 int r = 0; 978 int r = 0;
781 979
782 if (x >> 32) { x >>= 32; r += 32; } 980 if (x >> 32) { x >>= 32; r += 32; }
783 981
784 return r + ecb_ld32 (x); 982 return r + ecb_ld32 (x);
785 } 983 }
786#endif 984#endif
787 985
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
788ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 991ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
789ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 992ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
790{ 993{
791 return ( (x * 0x0802U & 0x22110U) 994 return ( (x * 0x0802U & 0x22110U)
792 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 995 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
793} 996}
794 997
795ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 998ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
796ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 999ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
797{ 1000{
798 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1001 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
799 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1002 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
800 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1003 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
801 x = ( x >> 8 ) | ( x << 8); 1004 x = ( x >> 8 ) | ( x << 8);
802 1005
803 return x; 1006 return x;
804} 1007}
805 1008
806ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1009ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
807ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1010ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
808{ 1011{
809 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1012 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
810 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1013 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
811 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1014 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
812 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1015 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
815 return x; 1018 return x;
816} 1019}
817 1020
818/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1021/* popcount64 is only available on 64 bit cpus as gcc builtin */
819/* so for this version we are lazy */ 1022/* so for this version we are lazy */
820ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1023ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
821ecb_function_ int 1024ecb_function_ ecb_const int
822ecb_popcount64 (uint64_t x) 1025ecb_popcount64 (uint64_t x)
823{ 1026{
824 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1027 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
825} 1028}
826 1029
827ecb_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);
828ecb_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);
829ecb_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);
830ecb_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);
831ecb_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);
832ecb_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);
833ecb_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);
834ecb_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);
835 1038
836ecb_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); }
837ecb_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); }
838ecb_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); }
839ecb_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); }
840ecb_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); }
841ecb_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); }
842ecb_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); }
843ecb_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); }
844 1047
845#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
846 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1052 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1053 #endif
847 #define ecb_bswap32(x) __builtin_bswap32 (x) 1054 #define ecb_bswap32(x) __builtin_bswap32 (x)
848 #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)))
849#else 1061#else
850 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1062 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
851 ecb_function_ uint16_t 1063 ecb_function_ ecb_const uint16_t
852 ecb_bswap16 (uint16_t x) 1064 ecb_bswap16 (uint16_t x)
853 { 1065 {
854 return ecb_rotl16 (x, 8); 1066 return ecb_rotl16 (x, 8);
855 } 1067 }
856 1068
857 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1069 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
858 ecb_function_ uint32_t 1070 ecb_function_ ecb_const uint32_t
859 ecb_bswap32 (uint32_t x) 1071 ecb_bswap32 (uint32_t x)
860 { 1072 {
861 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1073 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
862 } 1074 }
863 1075
864 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
865 ecb_function_ uint64_t 1077 ecb_function_ ecb_const uint64_t
866 ecb_bswap64 (uint64_t x) 1078 ecb_bswap64 (uint64_t x)
867 { 1079 {
868 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1080 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
869 } 1081 }
870#endif 1082#endif
871 1083
872#if ECB_GCC_VERSION(4,5) 1084#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
873 #define ecb_unreachable() __builtin_unreachable () 1085 #define ecb_unreachable() __builtin_unreachable ()
874#else 1086#else
875 /* 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 :/ */
876 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1088 ecb_inline ecb_noreturn void ecb_unreachable (void);
877 ecb_inline void ecb_unreachable (void) { } 1089 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
878#endif 1090#endif
879 1091
880/* try to tell the compiler that some condition is definitely true */ 1092/* try to tell the compiler that some condition is definitely true */
881#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
882 1094
883ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
884ecb_inline unsigned char 1096ecb_inline ecb_const unsigned char
885ecb_byteorder_helper (void) 1097ecb_byteorder_helper (void)
886{ 1098{
887 const uint32_t u = 0x11223344; 1099 /* the union code still generates code under pressure in gcc, */
888 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
889} 1119}
890 1120
891ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1121ecb_inline ecb_const ecb_bool ecb_big_endian (void);
892ecb_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; }
893ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1123ecb_inline ecb_const ecb_bool ecb_little_endian (void);
894ecb_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; }
895 1125
896#if ECB_GCC_VERSION(3,0) || ECB_C99 1126#if ECB_GCC_VERSION(3,0) || ECB_C99
897 #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))
898#else 1128#else
899 #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)))
900#endif 1130#endif
901 1131
902#if __cplusplus 1132#if ECB_CPP
903 template<typename T> 1133 template<typename T>
904 static inline T ecb_div_rd (T val, T div) 1134 static inline T ecb_div_rd (T val, T div)
905 { 1135 {
906 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1136 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
907 } 1137 }
… …
924 } 1154 }
925#else 1155#else
926 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927#endif 1157#endif
928 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
929#endif 1369#endif
930 1370
931/* ECB.H END */ 1371/* ECB.H END */
932 1372
933#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1373#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1099{ 1539{
1100 write (STDERR_FILENO, msg, strlen (msg)); 1540 write (STDERR_FILENO, msg, strlen (msg));
1101} 1541}
1102#endif 1542#endif
1103 1543
1104static void (*syserr_cb)(const char *msg); 1544static void (*syserr_cb)(const char *msg) EV_THROW;
1105 1545
1106void ecb_cold 1546void ecb_cold
1107ev_set_syserr_cb (void (*cb)(const char *msg)) 1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108{ 1548{
1109 syserr_cb = cb; 1549 syserr_cb = cb;
1110} 1550}
1111 1551
1112static void noinline ecb_cold 1552static void noinline ecb_cold
… …
1130 abort (); 1570 abort ();
1131 } 1571 }
1132} 1572}
1133 1573
1134static void * 1574static void *
1135ev_realloc_emul (void *ptr, long size) 1575ev_realloc_emul (void *ptr, long size) EV_THROW
1136{ 1576{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
1140 /* some systems, notably openbsd and darwin, fail to properly 1577 /* some systems, notably openbsd and darwin, fail to properly
1141 * 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
1142 * 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.
1143 */ 1582 */
1144 1583
1145 if (size) 1584 if (size)
1146 return realloc (ptr, size); 1585 return realloc (ptr, size);
1147 1586
1148 free (ptr); 1587 free (ptr);
1149 return 0; 1588 return 0;
1150#endif
1151} 1589}
1152 1590
1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154 1592
1155void ecb_cold 1593void ecb_cold
1156ev_set_allocator (void *(*cb)(void *ptr, long size)) 1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157{ 1595{
1158 alloc = cb; 1596 alloc = cb;
1159} 1597}
1160 1598
1161inline_speed void * 1599inline_speed void *
… …
1278 1716
1279/*****************************************************************************/ 1717/*****************************************************************************/
1280 1718
1281#ifndef EV_HAVE_EV_TIME 1719#ifndef EV_HAVE_EV_TIME
1282ev_tstamp 1720ev_tstamp
1283ev_time (void) 1721ev_time (void) EV_THROW
1284{ 1722{
1285#if EV_USE_REALTIME 1723#if EV_USE_REALTIME
1286 if (expect_true (have_realtime)) 1724 if (expect_true (have_realtime))
1287 { 1725 {
1288 struct timespec ts; 1726 struct timespec ts;
… …
1312 return ev_time (); 1750 return ev_time ();
1313} 1751}
1314 1752
1315#if EV_MULTIPLICITY 1753#if EV_MULTIPLICITY
1316ev_tstamp 1754ev_tstamp
1317ev_now (EV_P) 1755ev_now (EV_P) EV_THROW
1318{ 1756{
1319 return ev_rt_now; 1757 return ev_rt_now;
1320} 1758}
1321#endif 1759#endif
1322 1760
1323void 1761void
1324ev_sleep (ev_tstamp delay) 1762ev_sleep (ev_tstamp delay) EV_THROW
1325{ 1763{
1326 if (delay > 0.) 1764 if (delay > 0.)
1327 { 1765 {
1328#if EV_USE_NANOSLEEP 1766#if EV_USE_NANOSLEEP
1329 struct timespec ts; 1767 struct timespec ts;
1330 1768
1331 EV_TS_SET (ts, delay); 1769 EV_TS_SET (ts, delay);
1332 nanosleep (&ts, 0); 1770 nanosleep (&ts, 0);
1333#elif defined(_WIN32) 1771#elif defined _WIN32
1334 Sleep ((unsigned long)(delay * 1e3)); 1772 Sleep ((unsigned long)(delay * 1e3));
1335#else 1773#else
1336 struct timeval tv; 1774 struct timeval tv;
1337 1775
1338 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1410pendingcb (EV_P_ ev_prepare *w, int revents) 1848pendingcb (EV_P_ ev_prepare *w, int revents)
1411{ 1849{
1412} 1850}
1413 1851
1414void noinline 1852void noinline
1415ev_feed_event (EV_P_ void *w, int revents) 1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416{ 1854{
1417 W w_ = (W)w; 1855 W w_ = (W)w;
1418 int pri = ABSPRI (w_); 1856 int pri = ABSPRI (w_);
1419 1857
1420 if (expect_false (w_->pending)) 1858 if (expect_false (w_->pending))
… …
1424 w_->pending = ++pendingcnt [pri]; 1862 w_->pending = ++pendingcnt [pri];
1425 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426 pendings [pri][w_->pending - 1].w = w_; 1864 pendings [pri][w_->pending - 1].w = w_;
1427 pendings [pri][w_->pending - 1].events = revents; 1865 pendings [pri][w_->pending - 1].events = revents;
1428 } 1866 }
1867
1868 pendingpri = NUMPRI - 1;
1429} 1869}
1430 1870
1431inline_speed void 1871inline_speed void
1432feed_reverse (EV_P_ W w) 1872feed_reverse (EV_P_ W w)
1433{ 1873{
… …
1479 if (expect_true (!anfd->reify)) 1919 if (expect_true (!anfd->reify))
1480 fd_event_nocheck (EV_A_ fd, revents); 1920 fd_event_nocheck (EV_A_ fd, revents);
1481} 1921}
1482 1922
1483void 1923void
1484ev_feed_fd_event (EV_P_ int fd, int revents) 1924ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485{ 1925{
1486 if (fd >= 0 && fd < anfdmax) 1926 if (fd >= 0 && fd < anfdmax)
1487 fd_event_nocheck (EV_A_ fd, revents); 1927 fd_event_nocheck (EV_A_ fd, revents);
1488} 1928}
1489 1929
… …
1808static void noinline ecb_cold 2248static void noinline ecb_cold
1809evpipe_init (EV_P) 2249evpipe_init (EV_P)
1810{ 2250{
1811 if (!ev_is_active (&pipe_w)) 2251 if (!ev_is_active (&pipe_w))
1812 { 2252 {
2253 int fds [2];
2254
1813# if EV_USE_EVENTFD 2255# if EV_USE_EVENTFD
2256 fds [0] = -1;
1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2257 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815 if (evfd < 0 && errno == EINVAL) 2258 if (fds [1] < 0 && errno == EINVAL)
1816 evfd = eventfd (0, 0); 2259 fds [1] = eventfd (0, 0);
1817 2260
1818 if (evfd >= 0) 2261 if (fds [1] < 0)
2262# endif
1819 { 2263 {
2264 while (pipe (fds))
2265 ev_syserr ("(libev) error creating signal/async pipe");
2266
2267 fd_intern (fds [0]);
2268 }
2269
1820 evpipe [0] = -1; 2270 evpipe [0] = fds [0];
1821 fd_intern (evfd); /* doing it twice doesn't hurt */ 2271
1822 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));
1823 } 2322 }
1824 else 2323 else
1825# endif 2324#endif
1826 { 2325 {
1827 while (pipe (evpipe)) 2326#ifdef _WIN32
1828 ev_syserr ("(libev) error creating signal/async pipe"); 2327 WSABUF buf;
1829 2328 DWORD sent;
1830 fd_intern (evpipe [0]); 2329 buf.buf = &buf;
1831 fd_intern (evpipe [1]); 2330 buf.len = 1;
1832 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2331 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833 } 2332#else
1834
1835 ev_io_start (EV_A_ &pipe_w);
1836 ev_unref (EV_A); /* watcher should not keep loop alive */
1837 }
1838}
1839
1840inline_speed void
1841evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1842{
1843 if (expect_true (*flag))
1844 return;
1845
1846 *flag = 1;
1847
1848 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1849
1850 pipe_write_skipped = 1;
1851
1852 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1853
1854 if (pipe_write_wanted)
1855 {
1856 int old_errno;
1857
1858 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1860 old_errno = errno; /* save errno because write will clobber it */
1861
1862#if EV_USE_EVENTFD
1863 if (evfd >= 0)
1864 {
1865 uint64_t counter = 1;
1866 write (evfd, &counter, sizeof (uint64_t));
1867 }
1868 else
1869#endif
1870 {
1871 /* win32 people keep sending patches that change this write() to send() */
1872 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1873 /* so when you think this write should be a send instead, please find out */
1874 /* where your send() is from - it's definitely not the microsoft send, and */
1875 /* tell me. thank you. */
1876 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1877 /* check the ev documentation on how to use this flag */
1878 write (evpipe [1], &(evpipe [1]), 1); 2333 write (evpipe [1], &(evpipe [1]), 1);
2334#endif
1879 } 2335 }
1880 2336
1881 errno = old_errno; 2337 errno = old_errno;
1882 } 2338 }
1883} 2339}
… …
1890 int i; 2346 int i;
1891 2347
1892 if (revents & EV_READ) 2348 if (revents & EV_READ)
1893 { 2349 {
1894#if EV_USE_EVENTFD 2350#if EV_USE_EVENTFD
1895 if (evfd >= 0) 2351 if (evpipe [0] < 0)
1896 { 2352 {
1897 uint64_t counter; 2353 uint64_t counter;
1898 read (evfd, &counter, sizeof (uint64_t)); 2354 read (evpipe [1], &counter, sizeof (uint64_t));
1899 } 2355 }
1900 else 2356 else
1901#endif 2357#endif
1902 { 2358 {
1903 char dummy; 2359 char dummy[4];
1904 /* 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
1905 read (evpipe [0], &dummy, 1); 2368 read (evpipe [0], &dummy, sizeof (dummy));
2369#endif
1906 } 2370 }
1907 } 2371 }
1908 2372
1909 pipe_write_skipped = 0; 2373 pipe_write_skipped = 0;
2374
2375 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1910 2376
1911#if EV_SIGNAL_ENABLE 2377#if EV_SIGNAL_ENABLE
1912 if (sig_pending) 2378 if (sig_pending)
1913 { 2379 {
1914 sig_pending = 0; 2380 sig_pending = 0;
2381
2382 ECB_MEMORY_FENCE;
1915 2383
1916 for (i = EV_NSIG - 1; i--; ) 2384 for (i = EV_NSIG - 1; i--; )
1917 if (expect_false (signals [i].pending)) 2385 if (expect_false (signals [i].pending))
1918 ev_feed_signal_event (EV_A_ i + 1); 2386 ev_feed_signal_event (EV_A_ i + 1);
1919 } 2387 }
… …
1921 2389
1922#if EV_ASYNC_ENABLE 2390#if EV_ASYNC_ENABLE
1923 if (async_pending) 2391 if (async_pending)
1924 { 2392 {
1925 async_pending = 0; 2393 async_pending = 0;
2394
2395 ECB_MEMORY_FENCE;
1926 2396
1927 for (i = asynccnt; i--; ) 2397 for (i = asynccnt; i--; )
1928 if (asyncs [i]->sent) 2398 if (asyncs [i]->sent)
1929 { 2399 {
1930 asyncs [i]->sent = 0; 2400 asyncs [i]->sent = 0;
2401 ECB_MEMORY_FENCE_RELEASE;
1931 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2402 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1932 } 2403 }
1933 } 2404 }
1934#endif 2405#endif
1935} 2406}
1936 2407
1937/*****************************************************************************/ 2408/*****************************************************************************/
1938 2409
1939void 2410void
1940ev_feed_signal (int signum) 2411ev_feed_signal (int signum) EV_THROW
1941{ 2412{
1942#if EV_MULTIPLICITY 2413#if EV_MULTIPLICITY
2414 EV_P;
2415 ECB_MEMORY_FENCE_ACQUIRE;
1943 EV_P = signals [signum - 1].loop; 2416 EV_A = signals [signum - 1].loop;
1944 2417
1945 if (!EV_A) 2418 if (!EV_A)
1946 return; 2419 return;
1947#endif 2420#endif
1948 2421
1949 if (!ev_active (&pipe_w))
1950 return;
1951
1952 signals [signum - 1].pending = 1; 2422 signals [signum - 1].pending = 1;
1953 evpipe_write (EV_A_ &sig_pending); 2423 evpipe_write (EV_A_ &sig_pending);
1954} 2424}
1955 2425
1956static void 2426static void
… …
1962 2432
1963 ev_feed_signal (signum); 2433 ev_feed_signal (signum);
1964} 2434}
1965 2435
1966void noinline 2436void noinline
1967ev_feed_signal_event (EV_P_ int signum) 2437ev_feed_signal_event (EV_P_ int signum) EV_THROW
1968{ 2438{
1969 WL w; 2439 WL w;
1970 2440
1971 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2441 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1972 return; 2442 return;
1973 2443
1974 --signum; 2444 --signum;
1975 2445
1976#if EV_MULTIPLICITY 2446#if EV_MULTIPLICITY
… …
1980 if (expect_false (signals [signum].loop != EV_A)) 2450 if (expect_false (signals [signum].loop != EV_A))
1981 return; 2451 return;
1982#endif 2452#endif
1983 2453
1984 signals [signum].pending = 0; 2454 signals [signum].pending = 0;
2455 ECB_MEMORY_FENCE_RELEASE;
1985 2456
1986 for (w = signals [signum].head; w; w = w->next) 2457 for (w = signals [signum].head; w; w = w->next)
1987 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2458 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1988} 2459}
1989 2460
… …
2088#if EV_USE_SELECT 2559#if EV_USE_SELECT
2089# include "ev_select.c" 2560# include "ev_select.c"
2090#endif 2561#endif
2091 2562
2092int ecb_cold 2563int ecb_cold
2093ev_version_major (void) 2564ev_version_major (void) EV_THROW
2094{ 2565{
2095 return EV_VERSION_MAJOR; 2566 return EV_VERSION_MAJOR;
2096} 2567}
2097 2568
2098int ecb_cold 2569int ecb_cold
2099ev_version_minor (void) 2570ev_version_minor (void) EV_THROW
2100{ 2571{
2101 return EV_VERSION_MINOR; 2572 return EV_VERSION_MINOR;
2102} 2573}
2103 2574
2104/* 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 */
… …
2112 || getgid () != getegid (); 2583 || getgid () != getegid ();
2113#endif 2584#endif
2114} 2585}
2115 2586
2116unsigned int ecb_cold 2587unsigned int ecb_cold
2117ev_supported_backends (void) 2588ev_supported_backends (void) EV_THROW
2118{ 2589{
2119 unsigned int flags = 0; 2590 unsigned int flags = 0;
2120 2591
2121 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2122 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2593 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2126 2597
2127 return flags; 2598 return flags;
2128} 2599}
2129 2600
2130unsigned int ecb_cold 2601unsigned int ecb_cold
2131ev_recommended_backends (void) 2602ev_recommended_backends (void) EV_THROW
2132{ 2603{
2133 unsigned int flags = ev_supported_backends (); 2604 unsigned int flags = ev_supported_backends ();
2134 2605
2135#ifndef __NetBSD__ 2606#ifndef __NetBSD__
2136 /* kqueue is borked on everything but netbsd apparently */ 2607 /* kqueue is borked on everything but netbsd apparently */
… …
2148 2619
2149 return flags; 2620 return flags;
2150} 2621}
2151 2622
2152unsigned int ecb_cold 2623unsigned int ecb_cold
2153ev_embeddable_backends (void) 2624ev_embeddable_backends (void) EV_THROW
2154{ 2625{
2155 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2156 2627
2157 /* 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 */
2158 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 */
… …
2160 2631
2161 return flags; 2632 return flags;
2162} 2633}
2163 2634
2164unsigned int 2635unsigned int
2165ev_backend (EV_P) 2636ev_backend (EV_P) EV_THROW
2166{ 2637{
2167 return backend; 2638 return backend;
2168} 2639}
2169 2640
2170#if EV_FEATURE_API 2641#if EV_FEATURE_API
2171unsigned int 2642unsigned int
2172ev_iteration (EV_P) 2643ev_iteration (EV_P) EV_THROW
2173{ 2644{
2174 return loop_count; 2645 return loop_count;
2175} 2646}
2176 2647
2177unsigned int 2648unsigned int
2178ev_depth (EV_P) 2649ev_depth (EV_P) EV_THROW
2179{ 2650{
2180 return loop_depth; 2651 return loop_depth;
2181} 2652}
2182 2653
2183void 2654void
2184ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2655ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2185{ 2656{
2186 io_blocktime = interval; 2657 io_blocktime = interval;
2187} 2658}
2188 2659
2189void 2660void
2190ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2661ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191{ 2662{
2192 timeout_blocktime = interval; 2663 timeout_blocktime = interval;
2193} 2664}
2194 2665
2195void 2666void
2196ev_set_userdata (EV_P_ void *data) 2667ev_set_userdata (EV_P_ void *data) EV_THROW
2197{ 2668{
2198 userdata = data; 2669 userdata = data;
2199} 2670}
2200 2671
2201void * 2672void *
2202ev_userdata (EV_P) 2673ev_userdata (EV_P) EV_THROW
2203{ 2674{
2204 return userdata; 2675 return userdata;
2205} 2676}
2206 2677
2207void 2678void
2208ev_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
2209{ 2680{
2210 invoke_cb = invoke_pending_cb; 2681 invoke_cb = invoke_pending_cb;
2211} 2682}
2212 2683
2213void 2684void
2214ev_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
2215{ 2686{
2216 release_cb = release; 2687 release_cb = release;
2217 acquire_cb = acquire; 2688 acquire_cb = acquire;
2218} 2689}
2219#endif 2690#endif
2220 2691
2221/* initialise a loop structure, must be zero-initialised */ 2692/* initialise a loop structure, must be zero-initialised */
2222static void noinline ecb_cold 2693static void noinline ecb_cold
2223loop_init (EV_P_ unsigned int flags) 2694loop_init (EV_P_ unsigned int flags) EV_THROW
2224{ 2695{
2225 if (!backend) 2696 if (!backend)
2226 { 2697 {
2227 origflags = flags; 2698 origflags = flags;
2228 2699
… …
2273#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
2274 async_pending = 0; 2745 async_pending = 0;
2275#endif 2746#endif
2276 pipe_write_skipped = 0; 2747 pipe_write_skipped = 0;
2277 pipe_write_wanted = 0; 2748 pipe_write_wanted = 0;
2749 evpipe [0] = -1;
2750 evpipe [1] = -1;
2278#if EV_USE_INOTIFY 2751#if EV_USE_INOTIFY
2279 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2752 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2280#endif 2753#endif
2281#if EV_USE_SIGNALFD 2754#if EV_USE_SIGNALFD
2282 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2755 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2333 EV_INVOKE_PENDING; 2806 EV_INVOKE_PENDING;
2334 } 2807 }
2335#endif 2808#endif
2336 2809
2337#if EV_CHILD_ENABLE 2810#if EV_CHILD_ENABLE
2338 if (ev_is_active (&childev)) 2811 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2339 { 2812 {
2340 ev_ref (EV_A); /* child watcher */ 2813 ev_ref (EV_A); /* child watcher */
2341 ev_signal_stop (EV_A_ &childev); 2814 ev_signal_stop (EV_A_ &childev);
2342 } 2815 }
2343#endif 2816#endif
… …
2345 if (ev_is_active (&pipe_w)) 2818 if (ev_is_active (&pipe_w))
2346 { 2819 {
2347 /*ev_ref (EV_A);*/ 2820 /*ev_ref (EV_A);*/
2348 /*ev_io_stop (EV_A_ &pipe_w);*/ 2821 /*ev_io_stop (EV_A_ &pipe_w);*/
2349 2822
2350#if EV_USE_EVENTFD
2351 if (evfd >= 0)
2352 close (evfd);
2353#endif
2354
2355 if (evpipe [0] >= 0)
2356 {
2357 EV_WIN32_CLOSE_FD (evpipe [0]); 2823 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2358 EV_WIN32_CLOSE_FD (evpipe [1]); 2824 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2359 }
2360 } 2825 }
2361 2826
2362#if EV_USE_SIGNALFD 2827#if EV_USE_SIGNALFD
2363 if (ev_is_active (&sigfd_w)) 2828 if (ev_is_active (&sigfd_w))
2364 close (sigfd); 2829 close (sigfd);
… …
2450#endif 2915#endif
2451#if EV_USE_INOTIFY 2916#if EV_USE_INOTIFY
2452 infy_fork (EV_A); 2917 infy_fork (EV_A);
2453#endif 2918#endif
2454 2919
2920#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455 if (ev_is_active (&pipe_w)) 2921 if (ev_is_active (&pipe_w))
2456 { 2922 {
2457 /* 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 */
2458 2924
2459 ev_ref (EV_A); 2925 ev_ref (EV_A);
2460 ev_io_stop (EV_A_ &pipe_w); 2926 ev_io_stop (EV_A_ &pipe_w);
2461 2927
2462#if EV_USE_EVENTFD
2463 if (evfd >= 0)
2464 close (evfd);
2465#endif
2466
2467 if (evpipe [0] >= 0) 2928 if (evpipe [0] >= 0)
2468 {
2469 EV_WIN32_CLOSE_FD (evpipe [0]); 2929 EV_WIN32_CLOSE_FD (evpipe [0]);
2470 EV_WIN32_CLOSE_FD (evpipe [1]);
2471 }
2472 2930
2473#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2474 evpipe_init (EV_A); 2931 evpipe_init (EV_A);
2475 /* now iterate over everything, in case we missed something */ 2932 /* iterate over everything, in case we missed something before */
2476 pipecb (EV_A_ &pipe_w, EV_READ); 2933 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2477#endif
2478 } 2934 }
2935#endif
2479 2936
2480 postfork = 0; 2937 postfork = 0;
2481} 2938}
2482 2939
2483#if EV_MULTIPLICITY 2940#if EV_MULTIPLICITY
2484 2941
2485struct ev_loop * ecb_cold 2942struct ev_loop * ecb_cold
2486ev_loop_new (unsigned int flags) 2943ev_loop_new (unsigned int flags) EV_THROW
2487{ 2944{
2488 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2489 2946
2490 memset (EV_A, 0, sizeof (struct ev_loop)); 2947 memset (EV_A, 0, sizeof (struct ev_loop));
2491 loop_init (EV_A_ flags); 2948 loop_init (EV_A_ flags);
… …
2535} 2992}
2536#endif 2993#endif
2537 2994
2538#if EV_FEATURE_API 2995#if EV_FEATURE_API
2539void ecb_cold 2996void ecb_cold
2540ev_verify (EV_P) 2997ev_verify (EV_P) EV_THROW
2541{ 2998{
2542#if EV_VERIFY 2999#if EV_VERIFY
2543 int i; 3000 int i;
2544 WL w; 3001 WL w, w2;
2545 3002
2546 assert (activecnt >= -1); 3003 assert (activecnt >= -1);
2547 3004
2548 assert (fdchangemax >= fdchangecnt); 3005 assert (fdchangemax >= fdchangecnt);
2549 for (i = 0; i < fdchangecnt; ++i) 3006 for (i = 0; i < fdchangecnt; ++i)
2550 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3007 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2551 3008
2552 assert (anfdmax >= 0); 3009 assert (anfdmax >= 0);
2553 for (i = 0; i < anfdmax; ++i) 3010 for (i = 0; i < anfdmax; ++i)
3011 {
3012 int j = 0;
3013
2554 for (w = anfds [i].head; w; w = w->next) 3014 for (w = w2 = anfds [i].head; w; w = w->next)
2555 { 3015 {
2556 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
2557 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));
2558 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));
2559 } 3026 }
3027 }
2560 3028
2561 assert (timermax >= timercnt); 3029 assert (timermax >= timercnt);
2562 verify_heap (EV_A_ timers, timercnt); 3030 verify_heap (EV_A_ timers, timercnt);
2563 3031
2564#if EV_PERIODIC_ENABLE 3032#if EV_PERIODIC_ENABLE
… …
2614#if EV_MULTIPLICITY 3082#if EV_MULTIPLICITY
2615struct ev_loop * ecb_cold 3083struct ev_loop * ecb_cold
2616#else 3084#else
2617int 3085int
2618#endif 3086#endif
2619ev_default_loop (unsigned int flags) 3087ev_default_loop (unsigned int flags) EV_THROW
2620{ 3088{
2621 if (!ev_default_loop_ptr) 3089 if (!ev_default_loop_ptr)
2622 { 3090 {
2623#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
2624 EV_P = ev_default_loop_ptr = &default_loop_struct; 3092 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2643 3111
2644 return ev_default_loop_ptr; 3112 return ev_default_loop_ptr;
2645} 3113}
2646 3114
2647void 3115void
2648ev_loop_fork (EV_P) 3116ev_loop_fork (EV_P) EV_THROW
2649{ 3117{
2650 postfork = 1; /* must be in line with ev_default_fork */ 3118 postfork = 1;
2651} 3119}
2652 3120
2653/*****************************************************************************/ 3121/*****************************************************************************/
2654 3122
2655void 3123void
… …
2657{ 3125{
2658 EV_CB_INVOKE ((W)w, revents); 3126 EV_CB_INVOKE ((W)w, revents);
2659} 3127}
2660 3128
2661unsigned int 3129unsigned int
2662ev_pending_count (EV_P) 3130ev_pending_count (EV_P) EV_THROW
2663{ 3131{
2664 int pri; 3132 int pri;
2665 unsigned int count = 0; 3133 unsigned int count = 0;
2666 3134
2667 for (pri = NUMPRI; pri--; ) 3135 for (pri = NUMPRI; pri--; )
… …
2671} 3139}
2672 3140
2673void noinline 3141void noinline
2674ev_invoke_pending (EV_P) 3142ev_invoke_pending (EV_P)
2675{ 3143{
2676 int pri; 3144 pendingpri = NUMPRI;
2677 3145
2678 for (pri = NUMPRI; pri--; ) 3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3147 {
3148 --pendingpri;
3149
2679 while (pendingcnt [pri]) 3150 while (pendingcnt [pendingpri])
2680 { 3151 {
2681 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3152 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2682 3153
2683 p->w->pending = 0; 3154 p->w->pending = 0;
2684 EV_CB_INVOKE (p->w, p->events); 3155 EV_CB_INVOKE (p->w, p->events);
2685 EV_FREQUENT_CHECK; 3156 EV_FREQUENT_CHECK;
2686 } 3157 }
3158 }
2687} 3159}
2688 3160
2689#if EV_IDLE_ENABLE 3161#if EV_IDLE_ENABLE
2690/* make idle watchers pending. this handles the "call-idle */ 3162/* make idle watchers pending. this handles the "call-idle */
2691/* only when higher priorities are idle" logic */ 3163/* only when higher priorities are idle" logic */
… …
2781{ 3253{
2782 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2783 3255
2784 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3256 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2785 { 3257 {
2786 int feed_count = 0;
2787
2788 do 3258 do
2789 { 3259 {
2790 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3260 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2791 3261
2792 /*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)));*/
… …
2926 3396
2927 mn_now = ev_rt_now; 3397 mn_now = ev_rt_now;
2928 } 3398 }
2929} 3399}
2930 3400
2931void 3401int
2932ev_run (EV_P_ int flags) 3402ev_run (EV_P_ int flags)
2933{ 3403{
2934#if EV_FEATURE_API 3404#if EV_FEATURE_API
2935 ++loop_depth; 3405 ++loop_depth;
2936#endif 3406#endif
… …
3051 backend_poll (EV_A_ waittime); 3521 backend_poll (EV_A_ waittime);
3052 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3522 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3053 3523
3054 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3524 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3055 3525
3526 ECB_MEMORY_FENCE_ACQUIRE;
3056 if (pipe_write_skipped) 3527 if (pipe_write_skipped)
3057 { 3528 {
3058 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)));
3059 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3530 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3060 } 3531 }
… …
3093 loop_done = EVBREAK_CANCEL; 3564 loop_done = EVBREAK_CANCEL;
3094 3565
3095#if EV_FEATURE_API 3566#if EV_FEATURE_API
3096 --loop_depth; 3567 --loop_depth;
3097#endif 3568#endif
3569
3570 return activecnt;
3098} 3571}
3099 3572
3100void 3573void
3101ev_break (EV_P_ int how) 3574ev_break (EV_P_ int how) EV_THROW
3102{ 3575{
3103 loop_done = how; 3576 loop_done = how;
3104} 3577}
3105 3578
3106void 3579void
3107ev_ref (EV_P) 3580ev_ref (EV_P) EV_THROW
3108{ 3581{
3109 ++activecnt; 3582 ++activecnt;
3110} 3583}
3111 3584
3112void 3585void
3113ev_unref (EV_P) 3586ev_unref (EV_P) EV_THROW
3114{ 3587{
3115 --activecnt; 3588 --activecnt;
3116} 3589}
3117 3590
3118void 3591void
3119ev_now_update (EV_P) 3592ev_now_update (EV_P) EV_THROW
3120{ 3593{
3121 time_update (EV_A_ 1e100); 3594 time_update (EV_A_ 1e100);
3122} 3595}
3123 3596
3124void 3597void
3125ev_suspend (EV_P) 3598ev_suspend (EV_P) EV_THROW
3126{ 3599{
3127 ev_now_update (EV_A); 3600 ev_now_update (EV_A);
3128} 3601}
3129 3602
3130void 3603void
3131ev_resume (EV_P) 3604ev_resume (EV_P) EV_THROW
3132{ 3605{
3133 ev_tstamp mn_prev = mn_now; 3606 ev_tstamp mn_prev = mn_now;
3134 3607
3135 ev_now_update (EV_A); 3608 ev_now_update (EV_A);
3136 timers_reschedule (EV_A_ mn_now - mn_prev); 3609 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3175 w->pending = 0; 3648 w->pending = 0;
3176 } 3649 }
3177} 3650}
3178 3651
3179int 3652int
3180ev_clear_pending (EV_P_ void *w) 3653ev_clear_pending (EV_P_ void *w) EV_THROW
3181{ 3654{
3182 W w_ = (W)w; 3655 W w_ = (W)w;
3183 int pending = w_->pending; 3656 int pending = w_->pending;
3184 3657
3185 if (expect_true (pending)) 3658 if (expect_true (pending))
… …
3218} 3691}
3219 3692
3220/*****************************************************************************/ 3693/*****************************************************************************/
3221 3694
3222void noinline 3695void noinline
3223ev_io_start (EV_P_ ev_io *w) 3696ev_io_start (EV_P_ ev_io *w) EV_THROW
3224{ 3697{
3225 int fd = w->fd; 3698 int fd = w->fd;
3226 3699
3227 if (expect_false (ev_is_active (w))) 3700 if (expect_false (ev_is_active (w)))
3228 return; 3701 return;
… …
3234 3707
3235 ev_start (EV_A_ (W)w, 1); 3708 ev_start (EV_A_ (W)w, 1);
3236 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3709 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3237 wlist_add (&anfds[fd].head, (WL)w); 3710 wlist_add (&anfds[fd].head, (WL)w);
3238 3711
3712 /* common bug, apparently */
3713 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3714
3239 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);
3240 w->events &= ~EV__IOFDSET; 3716 w->events &= ~EV__IOFDSET;
3241 3717
3242 EV_FREQUENT_CHECK; 3718 EV_FREQUENT_CHECK;
3243} 3719}
3244 3720
3245void noinline 3721void noinline
3246ev_io_stop (EV_P_ ev_io *w) 3722ev_io_stop (EV_P_ ev_io *w) EV_THROW
3247{ 3723{
3248 clear_pending (EV_A_ (W)w); 3724 clear_pending (EV_A_ (W)w);
3249 if (expect_false (!ev_is_active (w))) 3725 if (expect_false (!ev_is_active (w)))
3250 return; 3726 return;
3251 3727
… …
3260 3736
3261 EV_FREQUENT_CHECK; 3737 EV_FREQUENT_CHECK;
3262} 3738}
3263 3739
3264void noinline 3740void noinline
3265ev_timer_start (EV_P_ ev_timer *w) 3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3266{ 3742{
3267 if (expect_false (ev_is_active (w))) 3743 if (expect_false (ev_is_active (w)))
3268 return; 3744 return;
3269 3745
3270 ev_at (w) += mn_now; 3746 ev_at (w) += mn_now;
… …
3284 3760
3285 /*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));*/
3286} 3762}
3287 3763
3288void noinline 3764void noinline
3289ev_timer_stop (EV_P_ ev_timer *w) 3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3290{ 3766{
3291 clear_pending (EV_A_ (W)w); 3767 clear_pending (EV_A_ (W)w);
3292 if (expect_false (!ev_is_active (w))) 3768 if (expect_false (!ev_is_active (w)))
3293 return; 3769 return;
3294 3770
… …
3314 3790
3315 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
3316} 3792}
3317 3793
3318void noinline 3794void noinline
3319ev_timer_again (EV_P_ ev_timer *w) 3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3320{ 3796{
3321 EV_FREQUENT_CHECK; 3797 EV_FREQUENT_CHECK;
3322 3798
3323 clear_pending (EV_A_ (W)w); 3799 clear_pending (EV_A_ (W)w);
3324 3800
… …
3341 3817
3342 EV_FREQUENT_CHECK; 3818 EV_FREQUENT_CHECK;
3343} 3819}
3344 3820
3345ev_tstamp 3821ev_tstamp
3346ev_timer_remaining (EV_P_ ev_timer *w) 3822ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3347{ 3823{
3348 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3349} 3825}
3350 3826
3351#if EV_PERIODIC_ENABLE 3827#if EV_PERIODIC_ENABLE
3352void noinline 3828void noinline
3353ev_periodic_start (EV_P_ ev_periodic *w) 3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3354{ 3830{
3355 if (expect_false (ev_is_active (w))) 3831 if (expect_false (ev_is_active (w)))
3356 return; 3832 return;
3357 3833
3358 if (w->reschedule_cb) 3834 if (w->reschedule_cb)
… …
3378 3854
3379 /*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));*/
3380} 3856}
3381 3857
3382void noinline 3858void noinline
3383ev_periodic_stop (EV_P_ ev_periodic *w) 3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3384{ 3860{
3385 clear_pending (EV_A_ (W)w); 3861 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 3862 if (expect_false (!ev_is_active (w)))
3387 return; 3863 return;
3388 3864
… …
3406 3882
3407 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
3408} 3884}
3409 3885
3410void noinline 3886void noinline
3411ev_periodic_again (EV_P_ ev_periodic *w) 3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3412{ 3888{
3413 /* TODO: use adjustheap and recalculation */ 3889 /* TODO: use adjustheap and recalculation */
3414 ev_periodic_stop (EV_A_ w); 3890 ev_periodic_stop (EV_A_ w);
3415 ev_periodic_start (EV_A_ w); 3891 ev_periodic_start (EV_A_ w);
3416} 3892}
… …
3421#endif 3897#endif
3422 3898
3423#if EV_SIGNAL_ENABLE 3899#if EV_SIGNAL_ENABLE
3424 3900
3425void noinline 3901void noinline
3426ev_signal_start (EV_P_ ev_signal *w) 3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3427{ 3903{
3428 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
3429 return; 3905 return;
3430 3906
3431 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));
… …
3433#if EV_MULTIPLICITY 3909#if EV_MULTIPLICITY
3434 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",
3435 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3911 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3436 3912
3437 signals [w->signum - 1].loop = EV_A; 3913 signals [w->signum - 1].loop = EV_A;
3914 ECB_MEMORY_FENCE_RELEASE;
3438#endif 3915#endif
3439 3916
3440 EV_FREQUENT_CHECK; 3917 EV_FREQUENT_CHECK;
3441 3918
3442#if EV_USE_SIGNALFD 3919#if EV_USE_SIGNALFD
… …
3502 3979
3503 EV_FREQUENT_CHECK; 3980 EV_FREQUENT_CHECK;
3504} 3981}
3505 3982
3506void noinline 3983void noinline
3507ev_signal_stop (EV_P_ ev_signal *w) 3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3508{ 3985{
3509 clear_pending (EV_A_ (W)w); 3986 clear_pending (EV_A_ (W)w);
3510 if (expect_false (!ev_is_active (w))) 3987 if (expect_false (!ev_is_active (w)))
3511 return; 3988 return;
3512 3989
… …
3543#endif 4020#endif
3544 4021
3545#if EV_CHILD_ENABLE 4022#if EV_CHILD_ENABLE
3546 4023
3547void 4024void
3548ev_child_start (EV_P_ ev_child *w) 4025ev_child_start (EV_P_ ev_child *w) EV_THROW
3549{ 4026{
3550#if EV_MULTIPLICITY 4027#if EV_MULTIPLICITY
3551 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));
3552#endif 4029#endif
3553 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
… …
3560 4037
3561 EV_FREQUENT_CHECK; 4038 EV_FREQUENT_CHECK;
3562} 4039}
3563 4040
3564void 4041void
3565ev_child_stop (EV_P_ ev_child *w) 4042ev_child_stop (EV_P_ ev_child *w) EV_THROW
3566{ 4043{
3567 clear_pending (EV_A_ (W)w); 4044 clear_pending (EV_A_ (W)w);
3568 if (expect_false (!ev_is_active (w))) 4045 if (expect_false (!ev_is_active (w)))
3569 return; 4046 return;
3570 4047
… …
3597# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4074# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3598 4075
3599static void noinline 4076static void noinline
3600infy_add (EV_P_ ev_stat *w) 4077infy_add (EV_P_ ev_stat *w)
3601{ 4078{
3602 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);
3603 4083
3604 if (w->wd >= 0) 4084 if (w->wd >= 0)
3605 { 4085 {
3606 struct statfs sfs; 4086 struct statfs sfs;
3607 4087
… …
3611 4091
3612 if (!fs_2625) 4092 if (!fs_2625)
3613 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4093 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3614 else if (!statfs (w->path, &sfs) 4094 else if (!statfs (w->path, &sfs)
3615 && (sfs.f_type == 0x1373 /* devfs */ 4095 && (sfs.f_type == 0x1373 /* devfs */
4096 || sfs.f_type == 0x4006 /* fat */
4097 || sfs.f_type == 0x4d44 /* msdos */
3616 || 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 */
3617 || sfs.f_type == 0x3153464a /* jfs */ 4102 || sfs.f_type == 0x3153464a /* jfs */
4103 || sfs.f_type == 0x9123683e /* btrfs */
3618 || sfs.f_type == 0x52654973 /* reiser3 */ 4104 || sfs.f_type == 0x52654973 /* reiser3 */
3619 || sfs.f_type == 0x01021994 /* tempfs */ 4105 || sfs.f_type == 0x01021994 /* tmpfs */
3620 || sfs.f_type == 0x58465342 /* xfs */)) 4106 || sfs.f_type == 0x58465342 /* xfs */))
3621 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4107 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3622 else 4108 else
3623 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 */
3624 } 4110 }
… …
3737} 4223}
3738 4224
3739inline_size int 4225inline_size int
3740infy_newfd (void) 4226infy_newfd (void)
3741{ 4227{
3742#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4228#if defined IN_CLOEXEC && defined IN_NONBLOCK
3743 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4229 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3744 if (fd >= 0) 4230 if (fd >= 0)
3745 return fd; 4231 return fd;
3746#endif 4232#endif
3747 return inotify_init (); 4233 return inotify_init ();
… …
3822#else 4308#else
3823# define EV_LSTAT(p,b) lstat (p, b) 4309# define EV_LSTAT(p,b) lstat (p, b)
3824#endif 4310#endif
3825 4311
3826void 4312void
3827ev_stat_stat (EV_P_ ev_stat *w) 4313ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3828{ 4314{
3829 if (lstat (w->path, &w->attr) < 0) 4315 if (lstat (w->path, &w->attr) < 0)
3830 w->attr.st_nlink = 0; 4316 w->attr.st_nlink = 0;
3831 else if (!w->attr.st_nlink) 4317 else if (!w->attr.st_nlink)
3832 w->attr.st_nlink = 1; 4318 w->attr.st_nlink = 1;
… …
3871 ev_feed_event (EV_A_ w, EV_STAT); 4357 ev_feed_event (EV_A_ w, EV_STAT);
3872 } 4358 }
3873} 4359}
3874 4360
3875void 4361void
3876ev_stat_start (EV_P_ ev_stat *w) 4362ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3877{ 4363{
3878 if (expect_false (ev_is_active (w))) 4364 if (expect_false (ev_is_active (w)))
3879 return; 4365 return;
3880 4366
3881 ev_stat_stat (EV_A_ w); 4367 ev_stat_stat (EV_A_ w);
… …
3902 4388
3903 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
3904} 4390}
3905 4391
3906void 4392void
3907ev_stat_stop (EV_P_ ev_stat *w) 4393ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3908{ 4394{
3909 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
3910 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
3911 return; 4397 return;
3912 4398
… …
3928} 4414}
3929#endif 4415#endif
3930 4416
3931#if EV_IDLE_ENABLE 4417#if EV_IDLE_ENABLE
3932void 4418void
3933ev_idle_start (EV_P_ ev_idle *w) 4419ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3934{ 4420{
3935 if (expect_false (ev_is_active (w))) 4421 if (expect_false (ev_is_active (w)))
3936 return; 4422 return;
3937 4423
3938 pri_adjust (EV_A_ (W)w); 4424 pri_adjust (EV_A_ (W)w);
… …
3951 4437
3952 EV_FREQUENT_CHECK; 4438 EV_FREQUENT_CHECK;
3953} 4439}
3954 4440
3955void 4441void
3956ev_idle_stop (EV_P_ ev_idle *w) 4442ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3957{ 4443{
3958 clear_pending (EV_A_ (W)w); 4444 clear_pending (EV_A_ (W)w);
3959 if (expect_false (!ev_is_active (w))) 4445 if (expect_false (!ev_is_active (w)))
3960 return; 4446 return;
3961 4447
… …
3975} 4461}
3976#endif 4462#endif
3977 4463
3978#if EV_PREPARE_ENABLE 4464#if EV_PREPARE_ENABLE
3979void 4465void
3980ev_prepare_start (EV_P_ ev_prepare *w) 4466ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3981{ 4467{
3982 if (expect_false (ev_is_active (w))) 4468 if (expect_false (ev_is_active (w)))
3983 return; 4469 return;
3984 4470
3985 EV_FREQUENT_CHECK; 4471 EV_FREQUENT_CHECK;
… …
3990 4476
3991 EV_FREQUENT_CHECK; 4477 EV_FREQUENT_CHECK;
3992} 4478}
3993 4479
3994void 4480void
3995ev_prepare_stop (EV_P_ ev_prepare *w) 4481ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3996{ 4482{
3997 clear_pending (EV_A_ (W)w); 4483 clear_pending (EV_A_ (W)w);
3998 if (expect_false (!ev_is_active (w))) 4484 if (expect_false (!ev_is_active (w)))
3999 return; 4485 return;
4000 4486
… …
4013} 4499}
4014#endif 4500#endif
4015 4501
4016#if EV_CHECK_ENABLE 4502#if EV_CHECK_ENABLE
4017void 4503void
4018ev_check_start (EV_P_ ev_check *w) 4504ev_check_start (EV_P_ ev_check *w) EV_THROW
4019{ 4505{
4020 if (expect_false (ev_is_active (w))) 4506 if (expect_false (ev_is_active (w)))
4021 return; 4507 return;
4022 4508
4023 EV_FREQUENT_CHECK; 4509 EV_FREQUENT_CHECK;
… …
4028 4514
4029 EV_FREQUENT_CHECK; 4515 EV_FREQUENT_CHECK;
4030} 4516}
4031 4517
4032void 4518void
4033ev_check_stop (EV_P_ ev_check *w) 4519ev_check_stop (EV_P_ ev_check *w) EV_THROW
4034{ 4520{
4035 clear_pending (EV_A_ (W)w); 4521 clear_pending (EV_A_ (W)w);
4036 if (expect_false (!ev_is_active (w))) 4522 if (expect_false (!ev_is_active (w)))
4037 return; 4523 return;
4038 4524
… …
4051} 4537}
4052#endif 4538#endif
4053 4539
4054#if EV_EMBED_ENABLE 4540#if EV_EMBED_ENABLE
4055void noinline 4541void noinline
4056ev_embed_sweep (EV_P_ ev_embed *w) 4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4057{ 4543{
4058 ev_run (w->other, EVRUN_NOWAIT); 4544 ev_run (w->other, EVRUN_NOWAIT);
4059} 4545}
4060 4546
4061static void 4547static void
… …
4109 ev_idle_stop (EV_A_ idle); 4595 ev_idle_stop (EV_A_ idle);
4110} 4596}
4111#endif 4597#endif
4112 4598
4113void 4599void
4114ev_embed_start (EV_P_ ev_embed *w) 4600ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4115{ 4601{
4116 if (expect_false (ev_is_active (w))) 4602 if (expect_false (ev_is_active (w)))
4117 return; 4603 return;
4118 4604
4119 { 4605 {
… …
4140 4626
4141 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
4142} 4628}
4143 4629
4144void 4630void
4145ev_embed_stop (EV_P_ ev_embed *w) 4631ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4146{ 4632{
4147 clear_pending (EV_A_ (W)w); 4633 clear_pending (EV_A_ (W)w);
4148 if (expect_false (!ev_is_active (w))) 4634 if (expect_false (!ev_is_active (w)))
4149 return; 4635 return;
4150 4636
… …
4160} 4646}
4161#endif 4647#endif
4162 4648
4163#if EV_FORK_ENABLE 4649#if EV_FORK_ENABLE
4164void 4650void
4165ev_fork_start (EV_P_ ev_fork *w) 4651ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4166{ 4652{
4167 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
4168 return; 4654 return;
4169 4655
4170 EV_FREQUENT_CHECK; 4656 EV_FREQUENT_CHECK;
… …
4175 4661
4176 EV_FREQUENT_CHECK; 4662 EV_FREQUENT_CHECK;
4177} 4663}
4178 4664
4179void 4665void
4180ev_fork_stop (EV_P_ ev_fork *w) 4666ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4181{ 4667{
4182 clear_pending (EV_A_ (W)w); 4668 clear_pending (EV_A_ (W)w);
4183 if (expect_false (!ev_is_active (w))) 4669 if (expect_false (!ev_is_active (w)))
4184 return; 4670 return;
4185 4671
… …
4198} 4684}
4199#endif 4685#endif
4200 4686
4201#if EV_CLEANUP_ENABLE 4687#if EV_CLEANUP_ENABLE
4202void 4688void
4203ev_cleanup_start (EV_P_ ev_cleanup *w) 4689ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4204{ 4690{
4205 if (expect_false (ev_is_active (w))) 4691 if (expect_false (ev_is_active (w)))
4206 return; 4692 return;
4207 4693
4208 EV_FREQUENT_CHECK; 4694 EV_FREQUENT_CHECK;
… …
4215 ev_unref (EV_A); 4701 ev_unref (EV_A);
4216 EV_FREQUENT_CHECK; 4702 EV_FREQUENT_CHECK;
4217} 4703}
4218 4704
4219void 4705void
4220ev_cleanup_stop (EV_P_ ev_cleanup *w) 4706ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4221{ 4707{
4222 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4223 if (expect_false (!ev_is_active (w))) 4709 if (expect_false (!ev_is_active (w)))
4224 return; 4710 return;
4225 4711
… …
4239} 4725}
4240#endif 4726#endif
4241 4727
4242#if EV_ASYNC_ENABLE 4728#if EV_ASYNC_ENABLE
4243void 4729void
4244ev_async_start (EV_P_ ev_async *w) 4730ev_async_start (EV_P_ ev_async *w) EV_THROW
4245{ 4731{
4246 if (expect_false (ev_is_active (w))) 4732 if (expect_false (ev_is_active (w)))
4247 return; 4733 return;
4248 4734
4249 w->sent = 0; 4735 w->sent = 0;
… …
4258 4744
4259 EV_FREQUENT_CHECK; 4745 EV_FREQUENT_CHECK;
4260} 4746}
4261 4747
4262void 4748void
4263ev_async_stop (EV_P_ ev_async *w) 4749ev_async_stop (EV_P_ ev_async *w) EV_THROW
4264{ 4750{
4265 clear_pending (EV_A_ (W)w); 4751 clear_pending (EV_A_ (W)w);
4266 if (expect_false (!ev_is_active (w))) 4752 if (expect_false (!ev_is_active (w)))
4267 return; 4753 return;
4268 4754
… …
4279 4765
4280 EV_FREQUENT_CHECK; 4766 EV_FREQUENT_CHECK;
4281} 4767}
4282 4768
4283void 4769void
4284ev_async_send (EV_P_ ev_async *w) 4770ev_async_send (EV_P_ ev_async *w) EV_THROW
4285{ 4771{
4286 w->sent = 1; 4772 w->sent = 1;
4287 evpipe_write (EV_A_ &async_pending); 4773 evpipe_write (EV_A_ &async_pending);
4288} 4774}
4289#endif 4775#endif
… …
4326 4812
4327 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));
4328} 4814}
4329 4815
4330void 4816void
4331ev_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
4332{ 4818{
4333 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));
4334 4820
4335 if (expect_false (!once)) 4821 if (expect_false (!once))
4336 { 4822 {
… …
4358 4844
4359/*****************************************************************************/ 4845/*****************************************************************************/
4360 4846
4361#if EV_WALK_ENABLE 4847#if EV_WALK_ENABLE
4362void ecb_cold 4848void ecb_cold
4363ev_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
4364{ 4850{
4365 int i, j; 4851 int i, j;
4366 ev_watcher_list *wl, *wn; 4852 ev_watcher_list *wl, *wn;
4367 4853
4368 if (types & (EV_IO | EV_EMBED)) 4854 if (types & (EV_IO | EV_EMBED))

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