ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 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
558#ifndef ECB_MEMORY_FENCE 647#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 648 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 649 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 650 #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 */ 651 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 652 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 653 #elif ECB_GCC_AMD64
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 655 #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 */ 656 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 657 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 659 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 660 || 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") 661 #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__ ) \ 662 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 663 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
665 #elif __aarch64__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
576 #elif __sparc || __sparc__ 667 #elif (__sparc || __sparc__) && !__sparcv8
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 671 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 673 #elif defined __mips__
674 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
675 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
676 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
677 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 678 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
679 #elif defined __hppa__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
681 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
682 #elif defined __ia64__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
684 #elif defined __m68k__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
686 #elif defined __m88k__
687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
688 #elif defined __sh__
689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 690 #endif
585 #endif 691 #endif
586#endif 692#endif
587 693
588#ifndef ECB_MEMORY_FENCE 694#ifndef ECB_MEMORY_FENCE
695 #if ECB_GCC_VERSION(4,7)
696 /* see comment below (stdatomic.h) about the C11 memory model. */
697 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
698 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
699 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
700
701 #elif ECB_CLANG_EXTENSION(c_atomic)
702 /* see comment below (stdatomic.h) about the C11 memory model. */
703 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
704 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
705 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
706
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 707 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 708 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 709 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 710 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
711 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
712 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
713 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
714 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 715 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 716 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 717 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 718 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 719 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 720 #elif defined _WIN32
599 #include <WinNT.h> 721 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 722 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 723 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 724 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 725 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 726 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 727 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
728 #elif __xlC__
729 #define ECB_MEMORY_FENCE __sync ()
730 #endif
731#endif
732
733#ifndef ECB_MEMORY_FENCE
734 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
735 /* we assume that these memory fences work on all variables/all memory accesses, */
736 /* not just C11 atomics and atomic accesses */
737 #include <stdatomic.h>
738 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
739 /* any fence other than seq_cst, which isn't very efficient for us. */
740 /* Why that is, we don't know - either the C11 memory model is quite useless */
741 /* for most usages, or gcc and clang have a bug */
742 /* I *currently* lean towards the latter, and inefficiently implement */
743 /* all three of ecb's fences as a seq_cst fence */
744 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
745 /* for all __atomic_thread_fence's except seq_cst */
746 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
606 #endif 747 #endif
607#endif 748#endif
608 749
609#ifndef ECB_MEMORY_FENCE 750#ifndef ECB_MEMORY_FENCE
610 #if !ECB_AVOID_PTHREADS 751 #if !ECB_AVOID_PTHREADS
… …
622 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 763 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 764 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624 #endif 765 #endif
625#endif 766#endif
626 767
627#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 768#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 769 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629#endif 770#endif
630 771
631#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 772#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 773 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633#endif 774#endif
634 775
635/*****************************************************************************/ 776/*****************************************************************************/
636 777
637#define ECB_C99 (__STDC_VERSION__ >= 199901L) 778#if ECB_CPP
638
639#if __cplusplus
640 #define ecb_inline static inline 779 #define ecb_inline static inline
641#elif ECB_GCC_VERSION(2,5) 780#elif ECB_GCC_VERSION(2,5)
642 #define ecb_inline static __inline__ 781 #define ecb_inline static __inline__
643#elif ECB_C99 782#elif ECB_C99
644 #define ecb_inline static inline 783 #define ecb_inline static inline
… …
658 797
659#define ECB_CONCAT_(a, b) a ## b 798#define ECB_CONCAT_(a, b) a ## b
660#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 799#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
661#define ECB_STRINGIFY_(a) # a 800#define ECB_STRINGIFY_(a) # a
662#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 801#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
802#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
663 803
664#define ecb_function_ ecb_inline 804#define ecb_function_ ecb_inline
665 805
666#if ECB_GCC_VERSION(3,1) 806#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
667 #define ecb_attribute(attrlist) __attribute__(attrlist) 807 #define ecb_attribute(attrlist) __attribute__ (attrlist)
808#else
809 #define ecb_attribute(attrlist)
810#endif
811
812#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
668 #define ecb_is_constant(expr) __builtin_constant_p (expr) 813 #define ecb_is_constant(expr) __builtin_constant_p (expr)
814#else
815 /* possible C11 impl for integral types
816 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
817 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
818
819 #define ecb_is_constant(expr) 0
820#endif
821
822#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
669 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 823 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
824#else
825 #define ecb_expect(expr,value) (expr)
826#endif
827
828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
670 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 829 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
671#else 830#else
672 #define ecb_attribute(attrlist)
673 #define ecb_is_constant(expr) 0
674 #define ecb_expect(expr,value) (expr)
675 #define ecb_prefetch(addr,rw,locality) 831 #define ecb_prefetch(addr,rw,locality)
676#endif 832#endif
677 833
678/* no emulation for ecb_decltype */ 834/* no emulation for ecb_decltype */
679#if ECB_GCC_VERSION(4,5) 835#if ECB_CPP11
836 // older implementations might have problems with decltype(x)::type, work around it
837 template<class T> struct ecb_decltype_t { typedef T type; };
680 #define ecb_decltype(x) __decltype(x) 838 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
681#elif ECB_GCC_VERSION(3,0) 839#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
682 #define ecb_decltype(x) __typeof(x) 840 #define ecb_decltype(x) __typeof__ (x)
683#endif 841#endif
684 842
843#if _MSC_VER >= 1300
844 #define ecb_deprecated __declspec (deprecated)
845#else
846 #define ecb_deprecated ecb_attribute ((__deprecated__))
847#endif
848
849#if __MSC_VER >= 1500
850 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
851#elif ECB_GCC_VERSION(4,5)
852 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
853#else
854 #define ecb_deprecated_message(msg) ecb_deprecated
855#endif
856
857#if _MSC_VER >= 1400
858 #define ecb_noinline __declspec (noinline)
859#else
685#define ecb_noinline ecb_attribute ((__noinline__)) 860 #define ecb_noinline ecb_attribute ((__noinline__))
686#define ecb_noreturn ecb_attribute ((__noreturn__)) 861#endif
862
687#define ecb_unused ecb_attribute ((__unused__)) 863#define ecb_unused ecb_attribute ((__unused__))
688#define ecb_const ecb_attribute ((__const__)) 864#define ecb_const ecb_attribute ((__const__))
689#define ecb_pure ecb_attribute ((__pure__)) 865#define ecb_pure ecb_attribute ((__pure__))
866
867#if ECB_C11 || __IBMC_NORETURN
868 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
869 #define ecb_noreturn _Noreturn
870#elif ECB_CPP11
871 #define ecb_noreturn [[noreturn]]
872#elif _MSC_VER >= 1200
873 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
874 #define ecb_noreturn __declspec (noreturn)
875#else
876 #define ecb_noreturn ecb_attribute ((__noreturn__))
877#endif
690 878
691#if ECB_GCC_VERSION(4,3) 879#if ECB_GCC_VERSION(4,3)
692 #define ecb_artificial ecb_attribute ((__artificial__)) 880 #define ecb_artificial ecb_attribute ((__artificial__))
693 #define ecb_hot ecb_attribute ((__hot__)) 881 #define ecb_hot ecb_attribute ((__hot__))
694 #define ecb_cold ecb_attribute ((__cold__)) 882 #define ecb_cold ecb_attribute ((__cold__))
… …
706/* for compatibility to the rest of the world */ 894/* for compatibility to the rest of the world */
707#define ecb_likely(expr) ecb_expect_true (expr) 895#define ecb_likely(expr) ecb_expect_true (expr)
708#define ecb_unlikely(expr) ecb_expect_false (expr) 896#define ecb_unlikely(expr) ecb_expect_false (expr)
709 897
710/* count trailing zero bits and count # of one bits */ 898/* count trailing zero bits and count # of one bits */
711#if ECB_GCC_VERSION(3,4) 899#if ECB_GCC_VERSION(3,4) \
900 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
901 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
902 && ECB_CLANG_BUILTIN(__builtin_popcount))
712 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 903 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
713 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 904 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
714 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 905 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
715 #define ecb_ctz32(x) __builtin_ctz (x) 906 #define ecb_ctz32(x) __builtin_ctz (x)
716 #define ecb_ctz64(x) __builtin_ctzll (x) 907 #define ecb_ctz64(x) __builtin_ctzll (x)
717 #define ecb_popcount32(x) __builtin_popcount (x) 908 #define ecb_popcount32(x) __builtin_popcount (x)
718 /* no popcountll */ 909 /* no popcountll */
719#else 910#else
720 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 911 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
721 ecb_function_ int 912 ecb_function_ ecb_const int
722 ecb_ctz32 (uint32_t x) 913 ecb_ctz32 (uint32_t x)
723 { 914 {
724 int r = 0; 915 int r = 0;
725 916
726 x &= ~x + 1; /* this isolates the lowest bit */ 917 x &= ~x + 1; /* this isolates the lowest bit */
… …
740#endif 931#endif
741 932
742 return r; 933 return r;
743 } 934 }
744 935
745 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 936 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
746 ecb_function_ int 937 ecb_function_ ecb_const int
747 ecb_ctz64 (uint64_t x) 938 ecb_ctz64 (uint64_t x)
748 { 939 {
749 int shift = x & 0xffffffffU ? 0 : 32; 940 int shift = x & 0xffffffffU ? 0 : 32;
750 return ecb_ctz32 (x >> shift) + shift; 941 return ecb_ctz32 (x >> shift) + shift;
751 } 942 }
752 943
753 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 944 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
754 ecb_function_ int 945 ecb_function_ ecb_const int
755 ecb_popcount32 (uint32_t x) 946 ecb_popcount32 (uint32_t x)
756 { 947 {
757 x -= (x >> 1) & 0x55555555; 948 x -= (x >> 1) & 0x55555555;
758 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 949 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
759 x = ((x >> 4) + x) & 0x0f0f0f0f; 950 x = ((x >> 4) + x) & 0x0f0f0f0f;
760 x *= 0x01010101; 951 x *= 0x01010101;
761 952
762 return x >> 24; 953 return x >> 24;
763 } 954 }
764 955
765 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 956 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
766 ecb_function_ int ecb_ld32 (uint32_t x) 957 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
767 { 958 {
768 int r = 0; 959 int r = 0;
769 960
770 if (x >> 16) { x >>= 16; r += 16; } 961 if (x >> 16) { x >>= 16; r += 16; }
771 if (x >> 8) { x >>= 8; r += 8; } 962 if (x >> 8) { x >>= 8; r += 8; }
… …
774 if (x >> 1) { r += 1; } 965 if (x >> 1) { r += 1; }
775 966
776 return r; 967 return r;
777 } 968 }
778 969
779 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 970 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
780 ecb_function_ int ecb_ld64 (uint64_t x) 971 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
781 { 972 {
782 int r = 0; 973 int r = 0;
783 974
784 if (x >> 32) { x >>= 32; r += 32; } 975 if (x >> 32) { x >>= 32; r += 32; }
785 976
786 return r + ecb_ld32 (x); 977 return r + ecb_ld32 (x);
787 } 978 }
788#endif 979#endif
789 980
981ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
982ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
983ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
984ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
985
790ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 986ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 987ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
792{ 988{
793 return ( (x * 0x0802U & 0x22110U) 989 return ( (x * 0x0802U & 0x22110U)
794 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 990 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
795} 991}
796 992
797ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 993ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 994ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
799{ 995{
800 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 996 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
801 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 997 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
802 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 998 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
803 x = ( x >> 8 ) | ( x << 8); 999 x = ( x >> 8 ) | ( x << 8);
804 1000
805 return x; 1001 return x;
806} 1002}
807 1003
808ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1004ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1005ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
810{ 1006{
811 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1007 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
812 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1008 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
813 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1009 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
814 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1010 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
817 return x; 1013 return x;
818} 1014}
819 1015
820/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1016/* popcount64 is only available on 64 bit cpus as gcc builtin */
821/* so for this version we are lazy */ 1017/* so for this version we are lazy */
822ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1018ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
823ecb_function_ int 1019ecb_function_ ecb_const int
824ecb_popcount64 (uint64_t x) 1020ecb_popcount64 (uint64_t x)
825{ 1021{
826 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1022 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
827} 1023}
828 1024
829ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1025ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
830ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1026ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
831ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1027ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
832ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1028ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
833ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1029ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
834ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1030ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
835ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1031ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
836ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1032ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
837 1033
838ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1034ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
839ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1035ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
840ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1036ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
841ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1037ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
842ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1038ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
843ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1039ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
844ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1040ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
845ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1041ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
846 1042
847#if ECB_GCC_VERSION(4,3) 1043#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
848 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1044 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
849 #define ecb_bswap32(x) __builtin_bswap32 (x) 1045 #define ecb_bswap32(x) __builtin_bswap32 (x)
850 #define ecb_bswap64(x) __builtin_bswap64 (x) 1046 #define ecb_bswap64(x) __builtin_bswap64 (x)
851#else 1047#else
852 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1048 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
853 ecb_function_ uint16_t 1049 ecb_function_ ecb_const uint16_t
854 ecb_bswap16 (uint16_t x) 1050 ecb_bswap16 (uint16_t x)
855 { 1051 {
856 return ecb_rotl16 (x, 8); 1052 return ecb_rotl16 (x, 8);
857 } 1053 }
858 1054
859 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1055 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
860 ecb_function_ uint32_t 1056 ecb_function_ ecb_const uint32_t
861 ecb_bswap32 (uint32_t x) 1057 ecb_bswap32 (uint32_t x)
862 { 1058 {
863 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1059 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
864 } 1060 }
865 1061
866 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1062 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
867 ecb_function_ uint64_t 1063 ecb_function_ ecb_const uint64_t
868 ecb_bswap64 (uint64_t x) 1064 ecb_bswap64 (uint64_t x)
869 { 1065 {
870 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1066 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
871 } 1067 }
872#endif 1068#endif
873 1069
874#if ECB_GCC_VERSION(4,5) 1070#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
875 #define ecb_unreachable() __builtin_unreachable () 1071 #define ecb_unreachable() __builtin_unreachable ()
876#else 1072#else
877 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1073 /* this seems to work fine, but gcc always emits a warning for it :/ */
878 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1074 ecb_inline ecb_noreturn void ecb_unreachable (void);
879 ecb_inline void ecb_unreachable (void) { } 1075 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
880#endif 1076#endif
881 1077
882/* try to tell the compiler that some condition is definitely true */ 1078/* try to tell the compiler that some condition is definitely true */
883#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1079#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
884 1080
885ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1081ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
886ecb_inline unsigned char 1082ecb_inline ecb_const unsigned char
887ecb_byteorder_helper (void) 1083ecb_byteorder_helper (void)
888{ 1084{
889 const uint32_t u = 0x11223344; 1085 /* the union code still generates code under pressure in gcc, */
890 return *(unsigned char *)&u; 1086 /* but less than using pointers, and always seems to */
1087 /* successfully return a constant. */
1088 /* the reason why we have this horrible preprocessor mess */
1089 /* is to avoid it in all cases, at least on common architectures */
1090 /* or when using a recent enough gcc version (>= 4.6) */
1091#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1092 return 0x44;
1093#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1094 return 0x44;
1095#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1096 return 0x11;
1097#else
1098 union
1099 {
1100 uint32_t i;
1101 uint8_t c;
1102 } u = { 0x11223344 };
1103 return u.c;
1104#endif
891} 1105}
892 1106
893ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1107ecb_inline ecb_const ecb_bool ecb_big_endian (void);
894ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1108ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
895ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1109ecb_inline ecb_const ecb_bool ecb_little_endian (void);
896ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1110ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
897 1111
898#if ECB_GCC_VERSION(3,0) || ECB_C99 1112#if ECB_GCC_VERSION(3,0) || ECB_C99
899 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1113 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
900#else 1114#else
901 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1115 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
902#endif 1116#endif
903 1117
904#if __cplusplus 1118#if ECB_CPP
905 template<typename T> 1119 template<typename T>
906 static inline T ecb_div_rd (T val, T div) 1120 static inline T ecb_div_rd (T val, T div)
907 { 1121 {
908 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1122 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
909 } 1123 }
… …
926 } 1140 }
927#else 1141#else
928 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1142 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
929#endif 1143#endif
930 1144
1145/*******************************************************************************/
1146/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1147
1148/* basically, everything uses "ieee pure-endian" floating point numbers */
1149/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1150#if 0 \
1151 || __i386 || __i386__ \
1152 || ECB_GCC_AMD64 \
1153 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1154 || defined __s390__ || defined __s390x__ \
1155 || defined __mips__ \
1156 || defined __alpha__ \
1157 || defined __hppa__ \
1158 || defined __ia64__ \
1159 || defined __m68k__ \
1160 || defined __m88k__ \
1161 || defined __sh__ \
1162 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1163 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1164 || defined __aarch64__
1165 #define ECB_STDFP 1
1166 #include <string.h> /* for memcpy */
1167#else
1168 #define ECB_STDFP 0
1169#endif
1170
1171#ifndef ECB_NO_LIBM
1172
1173 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1174
1175 /* only the oldest of old doesn't have this one. solaris. */
1176 #ifdef INFINITY
1177 #define ECB_INFINITY INFINITY
1178 #else
1179 #define ECB_INFINITY HUGE_VAL
1180 #endif
1181
1182 #ifdef NAN
1183 #define ECB_NAN NAN
1184 #else
1185 #define ECB_NAN ECB_INFINITY
1186 #endif
1187
1188 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1189 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1190 #else
1191 #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e))
1192 #endif
1193
1194 /* converts an ieee half/binary16 to a float */
1195 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1196 ecb_function_ ecb_const float
1197 ecb_binary16_to_float (uint16_t x)
1198 {
1199 int e = (x >> 10) & 0x1f;
1200 int m = x & 0x3ff;
1201 float r;
1202
1203 if (!e ) r = ecb_ldexpf (m , -24);
1204 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1205 else if (m ) r = ECB_NAN;
1206 else r = ECB_INFINITY;
1207
1208 return x & 0x8000 ? -r : r;
1209 }
1210
1211 /* convert a float to ieee single/binary32 */
1212 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1213 ecb_function_ ecb_const uint32_t
1214 ecb_float_to_binary32 (float x)
1215 {
1216 uint32_t r;
1217
1218 #if ECB_STDFP
1219 memcpy (&r, &x, 4);
1220 #else
1221 /* slow emulation, works for anything but -0 */
1222 uint32_t m;
1223 int e;
1224
1225 if (x == 0e0f ) return 0x00000000U;
1226 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1227 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1228 if (x != x ) return 0x7fbfffffU;
1229
1230 m = frexpf (x, &e) * 0x1000000U;
1231
1232 r = m & 0x80000000U;
1233
1234 if (r)
1235 m = -m;
1236
1237 if (e <= -126)
1238 {
1239 m &= 0xffffffU;
1240 m >>= (-125 - e);
1241 e = -126;
1242 }
1243
1244 r |= (e + 126) << 23;
1245 r |= m & 0x7fffffU;
1246 #endif
1247
1248 return r;
1249 }
1250
1251 /* converts an ieee single/binary32 to a float */
1252 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1253 ecb_function_ ecb_const float
1254 ecb_binary32_to_float (uint32_t x)
1255 {
1256 float r;
1257
1258 #if ECB_STDFP
1259 memcpy (&r, &x, 4);
1260 #else
1261 /* emulation, only works for normals and subnormals and +0 */
1262 int neg = x >> 31;
1263 int e = (x >> 23) & 0xffU;
1264
1265 x &= 0x7fffffU;
1266
1267 if (e)
1268 x |= 0x800000U;
1269 else
1270 e = 1;
1271
1272 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1273 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1274
1275 r = neg ? -r : r;
1276 #endif
1277
1278 return r;
1279 }
1280
1281 /* convert a double to ieee double/binary64 */
1282 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1283 ecb_function_ ecb_const uint64_t
1284 ecb_double_to_binary64 (double x)
1285 {
1286 uint64_t r;
1287
1288 #if ECB_STDFP
1289 memcpy (&r, &x, 8);
1290 #else
1291 /* slow emulation, works for anything but -0 */
1292 uint64_t m;
1293 int e;
1294
1295 if (x == 0e0 ) return 0x0000000000000000U;
1296 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1297 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1298 if (x != x ) return 0X7ff7ffffffffffffU;
1299
1300 m = frexp (x, &e) * 0x20000000000000U;
1301
1302 r = m & 0x8000000000000000;;
1303
1304 if (r)
1305 m = -m;
1306
1307 if (e <= -1022)
1308 {
1309 m &= 0x1fffffffffffffU;
1310 m >>= (-1021 - e);
1311 e = -1022;
1312 }
1313
1314 r |= ((uint64_t)(e + 1022)) << 52;
1315 r |= m & 0xfffffffffffffU;
1316 #endif
1317
1318 return r;
1319 }
1320
1321 /* converts an ieee double/binary64 to a double */
1322 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1323 ecb_function_ ecb_const double
1324 ecb_binary64_to_double (uint64_t x)
1325 {
1326 double r;
1327
1328 #if ECB_STDFP
1329 memcpy (&r, &x, 8);
1330 #else
1331 /* emulation, only works for normals and subnormals and +0 */
1332 int neg = x >> 63;
1333 int e = (x >> 52) & 0x7ffU;
1334
1335 x &= 0xfffffffffffffU;
1336
1337 if (e)
1338 x |= 0x10000000000000U;
1339 else
1340 e = 1;
1341
1342 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1343 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1344
1345 r = neg ? -r : r;
1346 #endif
1347
1348 return r;
1349 }
1350
1351#endif
1352
931#endif 1353#endif
932 1354
933/* ECB.H END */ 1355/* ECB.H END */
934 1356
935#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1357#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1101{ 1523{
1102 write (STDERR_FILENO, msg, strlen (msg)); 1524 write (STDERR_FILENO, msg, strlen (msg));
1103} 1525}
1104#endif 1526#endif
1105 1527
1106static void (*syserr_cb)(const char *msg); 1528static void (*syserr_cb)(const char *msg) EV_THROW;
1107 1529
1108void ecb_cold 1530void ecb_cold
1109ev_set_syserr_cb (void (*cb)(const char *msg)) 1531ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1110{ 1532{
1111 syserr_cb = cb; 1533 syserr_cb = cb;
1112} 1534}
1113 1535
1114static void noinline ecb_cold 1536static void noinline ecb_cold
… …
1132 abort (); 1554 abort ();
1133 } 1555 }
1134} 1556}
1135 1557
1136static void * 1558static void *
1137ev_realloc_emul (void *ptr, long size) 1559ev_realloc_emul (void *ptr, long size) EV_THROW
1138{ 1560{
1139#if __GLIBC__
1140 return realloc (ptr, size);
1141#else
1142 /* some systems, notably openbsd and darwin, fail to properly 1561 /* some systems, notably openbsd and darwin, fail to properly
1143 * implement realloc (x, 0) (as required by both ansi c-89 and 1562 * implement realloc (x, 0) (as required by both ansi c-89 and
1144 * the single unix specification, so work around them here. 1563 * the single unix specification, so work around them here.
1564 * recently, also (at least) fedora and debian started breaking it,
1565 * despite documenting it otherwise.
1145 */ 1566 */
1146 1567
1147 if (size) 1568 if (size)
1148 return realloc (ptr, size); 1569 return realloc (ptr, size);
1149 1570
1150 free (ptr); 1571 free (ptr);
1151 return 0; 1572 return 0;
1152#endif
1153} 1573}
1154 1574
1155static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1575static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1156 1576
1157void ecb_cold 1577void ecb_cold
1158ev_set_allocator (void *(*cb)(void *ptr, long size)) 1578ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1159{ 1579{
1160 alloc = cb; 1580 alloc = cb;
1161} 1581}
1162 1582
1163inline_speed void * 1583inline_speed void *
… …
1280 1700
1281/*****************************************************************************/ 1701/*****************************************************************************/
1282 1702
1283#ifndef EV_HAVE_EV_TIME 1703#ifndef EV_HAVE_EV_TIME
1284ev_tstamp 1704ev_tstamp
1285ev_time (void) 1705ev_time (void) EV_THROW
1286{ 1706{
1287#if EV_USE_REALTIME 1707#if EV_USE_REALTIME
1288 if (expect_true (have_realtime)) 1708 if (expect_true (have_realtime))
1289 { 1709 {
1290 struct timespec ts; 1710 struct timespec ts;
… …
1314 return ev_time (); 1734 return ev_time ();
1315} 1735}
1316 1736
1317#if EV_MULTIPLICITY 1737#if EV_MULTIPLICITY
1318ev_tstamp 1738ev_tstamp
1319ev_now (EV_P) 1739ev_now (EV_P) EV_THROW
1320{ 1740{
1321 return ev_rt_now; 1741 return ev_rt_now;
1322} 1742}
1323#endif 1743#endif
1324 1744
1325void 1745void
1326ev_sleep (ev_tstamp delay) 1746ev_sleep (ev_tstamp delay) EV_THROW
1327{ 1747{
1328 if (delay > 0.) 1748 if (delay > 0.)
1329 { 1749 {
1330#if EV_USE_NANOSLEEP 1750#if EV_USE_NANOSLEEP
1331 struct timespec ts; 1751 struct timespec ts;
1332 1752
1333 EV_TS_SET (ts, delay); 1753 EV_TS_SET (ts, delay);
1334 nanosleep (&ts, 0); 1754 nanosleep (&ts, 0);
1335#elif defined(_WIN32) 1755#elif defined _WIN32
1336 Sleep ((unsigned long)(delay * 1e3)); 1756 Sleep ((unsigned long)(delay * 1e3));
1337#else 1757#else
1338 struct timeval tv; 1758 struct timeval tv;
1339 1759
1340 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1760 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1412pendingcb (EV_P_ ev_prepare *w, int revents) 1832pendingcb (EV_P_ ev_prepare *w, int revents)
1413{ 1833{
1414} 1834}
1415 1835
1416void noinline 1836void noinline
1417ev_feed_event (EV_P_ void *w, int revents) 1837ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1418{ 1838{
1419 W w_ = (W)w; 1839 W w_ = (W)w;
1420 int pri = ABSPRI (w_); 1840 int pri = ABSPRI (w_);
1421 1841
1422 if (expect_false (w_->pending)) 1842 if (expect_false (w_->pending))
… …
1426 w_->pending = ++pendingcnt [pri]; 1846 w_->pending = ++pendingcnt [pri];
1427 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1847 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1428 pendings [pri][w_->pending - 1].w = w_; 1848 pendings [pri][w_->pending - 1].w = w_;
1429 pendings [pri][w_->pending - 1].events = revents; 1849 pendings [pri][w_->pending - 1].events = revents;
1430 } 1850 }
1851
1852 pendingpri = NUMPRI - 1;
1431} 1853}
1432 1854
1433inline_speed void 1855inline_speed void
1434feed_reverse (EV_P_ W w) 1856feed_reverse (EV_P_ W w)
1435{ 1857{
… …
1481 if (expect_true (!anfd->reify)) 1903 if (expect_true (!anfd->reify))
1482 fd_event_nocheck (EV_A_ fd, revents); 1904 fd_event_nocheck (EV_A_ fd, revents);
1483} 1905}
1484 1906
1485void 1907void
1486ev_feed_fd_event (EV_P_ int fd, int revents) 1908ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1487{ 1909{
1488 if (fd >= 0 && fd < anfdmax) 1910 if (fd >= 0 && fd < anfdmax)
1489 fd_event_nocheck (EV_A_ fd, revents); 1911 fd_event_nocheck (EV_A_ fd, revents);
1490} 1912}
1491 1913
… …
1810static void noinline ecb_cold 2232static void noinline ecb_cold
1811evpipe_init (EV_P) 2233evpipe_init (EV_P)
1812{ 2234{
1813 if (!ev_is_active (&pipe_w)) 2235 if (!ev_is_active (&pipe_w))
1814 { 2236 {
2237 int fds [2];
2238
1815# if EV_USE_EVENTFD 2239# if EV_USE_EVENTFD
2240 fds [0] = -1;
1816 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2241 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1817 if (evfd < 0 && errno == EINVAL) 2242 if (fds [1] < 0 && errno == EINVAL)
1818 evfd = eventfd (0, 0); 2243 fds [1] = eventfd (0, 0);
1819 2244
1820 if (evfd >= 0) 2245 if (fds [1] < 0)
2246# endif
1821 { 2247 {
2248 while (pipe (fds))
2249 ev_syserr ("(libev) error creating signal/async pipe");
2250
2251 fd_intern (fds [0]);
2252 }
2253
1822 evpipe [0] = -1; 2254 evpipe [0] = fds [0];
1823 fd_intern (evfd); /* doing it twice doesn't hurt */ 2255
1824 ev_io_set (&pipe_w, evfd, EV_READ); 2256 if (evpipe [1] < 0)
2257 evpipe [1] = fds [1]; /* first call, set write fd */
2258 else
2259 {
2260 /* on subsequent calls, do not change evpipe [1] */
2261 /* so that evpipe_write can always rely on its value. */
2262 /* this branch does not do anything sensible on windows, */
2263 /* so must not be executed on windows */
2264
2265 dup2 (fds [1], evpipe [1]);
2266 close (fds [1]);
2267 }
2268
2269 fd_intern (evpipe [1]);
2270
2271 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2272 ev_io_start (EV_A_ &pipe_w);
2273 ev_unref (EV_A); /* watcher should not keep loop alive */
2274 }
2275}
2276
2277inline_speed void
2278evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2279{
2280 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2281
2282 if (expect_true (*flag))
2283 return;
2284
2285 *flag = 1;
2286 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2287
2288 pipe_write_skipped = 1;
2289
2290 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2291
2292 if (pipe_write_wanted)
2293 {
2294 int old_errno;
2295
2296 pipe_write_skipped = 0;
2297 ECB_MEMORY_FENCE_RELEASE;
2298
2299 old_errno = errno; /* save errno because write will clobber it */
2300
2301#if EV_USE_EVENTFD
2302 if (evpipe [0] < 0)
2303 {
2304 uint64_t counter = 1;
2305 write (evpipe [1], &counter, sizeof (uint64_t));
1825 } 2306 }
1826 else 2307 else
1827# endif 2308#endif
1828 { 2309 {
1829 while (pipe (evpipe)) 2310#ifdef _WIN32
1830 ev_syserr ("(libev) error creating signal/async pipe"); 2311 WSABUF buf;
1831 2312 DWORD sent;
1832 fd_intern (evpipe [0]); 2313 buf.buf = &buf;
1833 fd_intern (evpipe [1]); 2314 buf.len = 1;
1834 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2315 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1835 } 2316#else
1836
1837 ev_io_start (EV_A_ &pipe_w);
1838 ev_unref (EV_A); /* watcher should not keep loop alive */
1839 }
1840}
1841
1842inline_speed void
1843evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844{
1845 if (expect_true (*flag))
1846 return;
1847
1848 *flag = 1;
1849
1850 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851
1852 pipe_write_skipped = 1;
1853
1854 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855
1856 if (pipe_write_wanted)
1857 {
1858 int old_errno;
1859
1860 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1861
1862 old_errno = errno; /* save errno because write will clobber it */
1863
1864#if EV_USE_EVENTFD
1865 if (evfd >= 0)
1866 {
1867 uint64_t counter = 1;
1868 write (evfd, &counter, sizeof (uint64_t));
1869 }
1870 else
1871#endif
1872 {
1873 /* win32 people keep sending patches that change this write() to send() */
1874 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1875 /* so when you think this write should be a send instead, please find out */
1876 /* where your send() is from - it's definitely not the microsoft send, and */
1877 /* tell me. thank you. */
1878 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1879 /* check the ev documentation on how to use this flag */
1880 write (evpipe [1], &(evpipe [1]), 1); 2317 write (evpipe [1], &(evpipe [1]), 1);
2318#endif
1881 } 2319 }
1882 2320
1883 errno = old_errno; 2321 errno = old_errno;
1884 } 2322 }
1885} 2323}
… …
1892 int i; 2330 int i;
1893 2331
1894 if (revents & EV_READ) 2332 if (revents & EV_READ)
1895 { 2333 {
1896#if EV_USE_EVENTFD 2334#if EV_USE_EVENTFD
1897 if (evfd >= 0) 2335 if (evpipe [0] < 0)
1898 { 2336 {
1899 uint64_t counter; 2337 uint64_t counter;
1900 read (evfd, &counter, sizeof (uint64_t)); 2338 read (evpipe [1], &counter, sizeof (uint64_t));
1901 } 2339 }
1902 else 2340 else
1903#endif 2341#endif
1904 { 2342 {
1905 char dummy; 2343 char dummy[4];
1906 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2344#ifdef _WIN32
2345 WSABUF buf;
2346 DWORD recvd;
2347 DWORD flags = 0;
2348 buf.buf = dummy;
2349 buf.len = sizeof (dummy);
2350 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2351#else
1907 read (evpipe [0], &dummy, 1); 2352 read (evpipe [0], &dummy, sizeof (dummy));
2353#endif
1908 } 2354 }
1909 } 2355 }
1910 2356
1911 pipe_write_skipped = 0; 2357 pipe_write_skipped = 0;
2358
2359 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912 2360
1913#if EV_SIGNAL_ENABLE 2361#if EV_SIGNAL_ENABLE
1914 if (sig_pending) 2362 if (sig_pending)
1915 { 2363 {
1916 sig_pending = 0; 2364 sig_pending = 0;
2365
2366 ECB_MEMORY_FENCE;
1917 2367
1918 for (i = EV_NSIG - 1; i--; ) 2368 for (i = EV_NSIG - 1; i--; )
1919 if (expect_false (signals [i].pending)) 2369 if (expect_false (signals [i].pending))
1920 ev_feed_signal_event (EV_A_ i + 1); 2370 ev_feed_signal_event (EV_A_ i + 1);
1921 } 2371 }
… …
1923 2373
1924#if EV_ASYNC_ENABLE 2374#if EV_ASYNC_ENABLE
1925 if (async_pending) 2375 if (async_pending)
1926 { 2376 {
1927 async_pending = 0; 2377 async_pending = 0;
2378
2379 ECB_MEMORY_FENCE;
1928 2380
1929 for (i = asynccnt; i--; ) 2381 for (i = asynccnt; i--; )
1930 if (asyncs [i]->sent) 2382 if (asyncs [i]->sent)
1931 { 2383 {
1932 asyncs [i]->sent = 0; 2384 asyncs [i]->sent = 0;
2385 ECB_MEMORY_FENCE_RELEASE;
1933 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2386 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934 } 2387 }
1935 } 2388 }
1936#endif 2389#endif
1937} 2390}
1938 2391
1939/*****************************************************************************/ 2392/*****************************************************************************/
1940 2393
1941void 2394void
1942ev_feed_signal (int signum) 2395ev_feed_signal (int signum) EV_THROW
1943{ 2396{
1944#if EV_MULTIPLICITY 2397#if EV_MULTIPLICITY
2398 EV_P;
2399 ECB_MEMORY_FENCE_ACQUIRE;
1945 EV_P = signals [signum - 1].loop; 2400 EV_A = signals [signum - 1].loop;
1946 2401
1947 if (!EV_A) 2402 if (!EV_A)
1948 return; 2403 return;
1949#endif 2404#endif
1950 2405
1951 if (!ev_active (&pipe_w))
1952 return;
1953
1954 signals [signum - 1].pending = 1; 2406 signals [signum - 1].pending = 1;
1955 evpipe_write (EV_A_ &sig_pending); 2407 evpipe_write (EV_A_ &sig_pending);
1956} 2408}
1957 2409
1958static void 2410static void
… …
1964 2416
1965 ev_feed_signal (signum); 2417 ev_feed_signal (signum);
1966} 2418}
1967 2419
1968void noinline 2420void noinline
1969ev_feed_signal_event (EV_P_ int signum) 2421ev_feed_signal_event (EV_P_ int signum) EV_THROW
1970{ 2422{
1971 WL w; 2423 WL w;
1972 2424
1973 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2425 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1974 return; 2426 return;
1975 2427
1976 --signum; 2428 --signum;
1977 2429
1978#if EV_MULTIPLICITY 2430#if EV_MULTIPLICITY
… …
1982 if (expect_false (signals [signum].loop != EV_A)) 2434 if (expect_false (signals [signum].loop != EV_A))
1983 return; 2435 return;
1984#endif 2436#endif
1985 2437
1986 signals [signum].pending = 0; 2438 signals [signum].pending = 0;
2439 ECB_MEMORY_FENCE_RELEASE;
1987 2440
1988 for (w = signals [signum].head; w; w = w->next) 2441 for (w = signals [signum].head; w; w = w->next)
1989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2442 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990} 2443}
1991 2444
… …
2090#if EV_USE_SELECT 2543#if EV_USE_SELECT
2091# include "ev_select.c" 2544# include "ev_select.c"
2092#endif 2545#endif
2093 2546
2094int ecb_cold 2547int ecb_cold
2095ev_version_major (void) 2548ev_version_major (void) EV_THROW
2096{ 2549{
2097 return EV_VERSION_MAJOR; 2550 return EV_VERSION_MAJOR;
2098} 2551}
2099 2552
2100int ecb_cold 2553int ecb_cold
2101ev_version_minor (void) 2554ev_version_minor (void) EV_THROW
2102{ 2555{
2103 return EV_VERSION_MINOR; 2556 return EV_VERSION_MINOR;
2104} 2557}
2105 2558
2106/* return true if we are running with elevated privileges and should ignore env variables */ 2559/* return true if we are running with elevated privileges and should ignore env variables */
… …
2114 || getgid () != getegid (); 2567 || getgid () != getegid ();
2115#endif 2568#endif
2116} 2569}
2117 2570
2118unsigned int ecb_cold 2571unsigned int ecb_cold
2119ev_supported_backends (void) 2572ev_supported_backends (void) EV_THROW
2120{ 2573{
2121 unsigned int flags = 0; 2574 unsigned int flags = 0;
2122 2575
2123 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2576 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2577 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2128 2581
2129 return flags; 2582 return flags;
2130} 2583}
2131 2584
2132unsigned int ecb_cold 2585unsigned int ecb_cold
2133ev_recommended_backends (void) 2586ev_recommended_backends (void) EV_THROW
2134{ 2587{
2135 unsigned int flags = ev_supported_backends (); 2588 unsigned int flags = ev_supported_backends ();
2136 2589
2137#ifndef __NetBSD__ 2590#ifndef __NetBSD__
2138 /* kqueue is borked on everything but netbsd apparently */ 2591 /* kqueue is borked on everything but netbsd apparently */
… …
2150 2603
2151 return flags; 2604 return flags;
2152} 2605}
2153 2606
2154unsigned int ecb_cold 2607unsigned int ecb_cold
2155ev_embeddable_backends (void) 2608ev_embeddable_backends (void) EV_THROW
2156{ 2609{
2157 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2610 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158 2611
2159 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2612 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2613 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2162 2615
2163 return flags; 2616 return flags;
2164} 2617}
2165 2618
2166unsigned int 2619unsigned int
2167ev_backend (EV_P) 2620ev_backend (EV_P) EV_THROW
2168{ 2621{
2169 return backend; 2622 return backend;
2170} 2623}
2171 2624
2172#if EV_FEATURE_API 2625#if EV_FEATURE_API
2173unsigned int 2626unsigned int
2174ev_iteration (EV_P) 2627ev_iteration (EV_P) EV_THROW
2175{ 2628{
2176 return loop_count; 2629 return loop_count;
2177} 2630}
2178 2631
2179unsigned int 2632unsigned int
2180ev_depth (EV_P) 2633ev_depth (EV_P) EV_THROW
2181{ 2634{
2182 return loop_depth; 2635 return loop_depth;
2183} 2636}
2184 2637
2185void 2638void
2186ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2639ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2187{ 2640{
2188 io_blocktime = interval; 2641 io_blocktime = interval;
2189} 2642}
2190 2643
2191void 2644void
2192ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2645ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2193{ 2646{
2194 timeout_blocktime = interval; 2647 timeout_blocktime = interval;
2195} 2648}
2196 2649
2197void 2650void
2198ev_set_userdata (EV_P_ void *data) 2651ev_set_userdata (EV_P_ void *data) EV_THROW
2199{ 2652{
2200 userdata = data; 2653 userdata = data;
2201} 2654}
2202 2655
2203void * 2656void *
2204ev_userdata (EV_P) 2657ev_userdata (EV_P) EV_THROW
2205{ 2658{
2206 return userdata; 2659 return userdata;
2207} 2660}
2208 2661
2209void 2662void
2210ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2663ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2211{ 2664{
2212 invoke_cb = invoke_pending_cb; 2665 invoke_cb = invoke_pending_cb;
2213} 2666}
2214 2667
2215void 2668void
2216ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2669ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2217{ 2670{
2218 release_cb = release; 2671 release_cb = release;
2219 acquire_cb = acquire; 2672 acquire_cb = acquire;
2220} 2673}
2221#endif 2674#endif
2222 2675
2223/* initialise a loop structure, must be zero-initialised */ 2676/* initialise a loop structure, must be zero-initialised */
2224static void noinline ecb_cold 2677static void noinline ecb_cold
2225loop_init (EV_P_ unsigned int flags) 2678loop_init (EV_P_ unsigned int flags) EV_THROW
2226{ 2679{
2227 if (!backend) 2680 if (!backend)
2228 { 2681 {
2229 origflags = flags; 2682 origflags = flags;
2230 2683
… …
2275#if EV_ASYNC_ENABLE 2728#if EV_ASYNC_ENABLE
2276 async_pending = 0; 2729 async_pending = 0;
2277#endif 2730#endif
2278 pipe_write_skipped = 0; 2731 pipe_write_skipped = 0;
2279 pipe_write_wanted = 0; 2732 pipe_write_wanted = 0;
2733 evpipe [0] = -1;
2734 evpipe [1] = -1;
2280#if EV_USE_INOTIFY 2735#if EV_USE_INOTIFY
2281 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2736 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2282#endif 2737#endif
2283#if EV_USE_SIGNALFD 2738#if EV_USE_SIGNALFD
2284 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2739 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2335 EV_INVOKE_PENDING; 2790 EV_INVOKE_PENDING;
2336 } 2791 }
2337#endif 2792#endif
2338 2793
2339#if EV_CHILD_ENABLE 2794#if EV_CHILD_ENABLE
2340 if (ev_is_active (&childev)) 2795 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341 { 2796 {
2342 ev_ref (EV_A); /* child watcher */ 2797 ev_ref (EV_A); /* child watcher */
2343 ev_signal_stop (EV_A_ &childev); 2798 ev_signal_stop (EV_A_ &childev);
2344 } 2799 }
2345#endif 2800#endif
… …
2347 if (ev_is_active (&pipe_w)) 2802 if (ev_is_active (&pipe_w))
2348 { 2803 {
2349 /*ev_ref (EV_A);*/ 2804 /*ev_ref (EV_A);*/
2350 /*ev_io_stop (EV_A_ &pipe_w);*/ 2805 /*ev_io_stop (EV_A_ &pipe_w);*/
2351 2806
2352#if EV_USE_EVENTFD
2353 if (evfd >= 0)
2354 close (evfd);
2355#endif
2356
2357 if (evpipe [0] >= 0)
2358 {
2359 EV_WIN32_CLOSE_FD (evpipe [0]); 2807 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2360 EV_WIN32_CLOSE_FD (evpipe [1]); 2808 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2361 }
2362 } 2809 }
2363 2810
2364#if EV_USE_SIGNALFD 2811#if EV_USE_SIGNALFD
2365 if (ev_is_active (&sigfd_w)) 2812 if (ev_is_active (&sigfd_w))
2366 close (sigfd); 2813 close (sigfd);
… …
2452#endif 2899#endif
2453#if EV_USE_INOTIFY 2900#if EV_USE_INOTIFY
2454 infy_fork (EV_A); 2901 infy_fork (EV_A);
2455#endif 2902#endif
2456 2903
2904#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2457 if (ev_is_active (&pipe_w)) 2905 if (ev_is_active (&pipe_w))
2458 { 2906 {
2459 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2907 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2460 2908
2461 ev_ref (EV_A); 2909 ev_ref (EV_A);
2462 ev_io_stop (EV_A_ &pipe_w); 2910 ev_io_stop (EV_A_ &pipe_w);
2463 2911
2464#if EV_USE_EVENTFD
2465 if (evfd >= 0)
2466 close (evfd);
2467#endif
2468
2469 if (evpipe [0] >= 0) 2912 if (evpipe [0] >= 0)
2470 {
2471 EV_WIN32_CLOSE_FD (evpipe [0]); 2913 EV_WIN32_CLOSE_FD (evpipe [0]);
2472 EV_WIN32_CLOSE_FD (evpipe [1]);
2473 }
2474 2914
2475#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 evpipe_init (EV_A); 2915 evpipe_init (EV_A);
2477 /* now iterate over everything, in case we missed something */ 2916 /* iterate over everything, in case we missed something before */
2478 pipecb (EV_A_ &pipe_w, EV_READ); 2917 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479#endif
2480 } 2918 }
2919#endif
2481 2920
2482 postfork = 0; 2921 postfork = 0;
2483} 2922}
2484 2923
2485#if EV_MULTIPLICITY 2924#if EV_MULTIPLICITY
2486 2925
2487struct ev_loop * ecb_cold 2926struct ev_loop * ecb_cold
2488ev_loop_new (unsigned int flags) 2927ev_loop_new (unsigned int flags) EV_THROW
2489{ 2928{
2490 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491 2930
2492 memset (EV_A, 0, sizeof (struct ev_loop)); 2931 memset (EV_A, 0, sizeof (struct ev_loop));
2493 loop_init (EV_A_ flags); 2932 loop_init (EV_A_ flags);
… …
2537} 2976}
2538#endif 2977#endif
2539 2978
2540#if EV_FEATURE_API 2979#if EV_FEATURE_API
2541void ecb_cold 2980void ecb_cold
2542ev_verify (EV_P) 2981ev_verify (EV_P) EV_THROW
2543{ 2982{
2544#if EV_VERIFY 2983#if EV_VERIFY
2545 int i; 2984 int i;
2546 WL w; 2985 WL w, w2;
2547 2986
2548 assert (activecnt >= -1); 2987 assert (activecnt >= -1);
2549 2988
2550 assert (fdchangemax >= fdchangecnt); 2989 assert (fdchangemax >= fdchangecnt);
2551 for (i = 0; i < fdchangecnt; ++i) 2990 for (i = 0; i < fdchangecnt; ++i)
2552 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2991 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553 2992
2554 assert (anfdmax >= 0); 2993 assert (anfdmax >= 0);
2555 for (i = 0; i < anfdmax; ++i) 2994 for (i = 0; i < anfdmax; ++i)
2995 {
2996 int j = 0;
2997
2556 for (w = anfds [i].head; w; w = w->next) 2998 for (w = w2 = anfds [i].head; w; w = w->next)
2557 { 2999 {
2558 verify_watcher (EV_A_ (W)w); 3000 verify_watcher (EV_A_ (W)w);
3001
3002 if (j++ & 1)
3003 {
3004 assert (("libev: io watcher list contains a loop", w != w2));
3005 w2 = w2->next;
3006 }
3007
2559 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3008 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3009 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561 } 3010 }
3011 }
2562 3012
2563 assert (timermax >= timercnt); 3013 assert (timermax >= timercnt);
2564 verify_heap (EV_A_ timers, timercnt); 3014 verify_heap (EV_A_ timers, timercnt);
2565 3015
2566#if EV_PERIODIC_ENABLE 3016#if EV_PERIODIC_ENABLE
… …
2616#if EV_MULTIPLICITY 3066#if EV_MULTIPLICITY
2617struct ev_loop * ecb_cold 3067struct ev_loop * ecb_cold
2618#else 3068#else
2619int 3069int
2620#endif 3070#endif
2621ev_default_loop (unsigned int flags) 3071ev_default_loop (unsigned int flags) EV_THROW
2622{ 3072{
2623 if (!ev_default_loop_ptr) 3073 if (!ev_default_loop_ptr)
2624 { 3074 {
2625#if EV_MULTIPLICITY 3075#if EV_MULTIPLICITY
2626 EV_P = ev_default_loop_ptr = &default_loop_struct; 3076 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2645 3095
2646 return ev_default_loop_ptr; 3096 return ev_default_loop_ptr;
2647} 3097}
2648 3098
2649void 3099void
2650ev_loop_fork (EV_P) 3100ev_loop_fork (EV_P) EV_THROW
2651{ 3101{
2652 postfork = 1; /* must be in line with ev_default_fork */ 3102 postfork = 1;
2653} 3103}
2654 3104
2655/*****************************************************************************/ 3105/*****************************************************************************/
2656 3106
2657void 3107void
… …
2659{ 3109{
2660 EV_CB_INVOKE ((W)w, revents); 3110 EV_CB_INVOKE ((W)w, revents);
2661} 3111}
2662 3112
2663unsigned int 3113unsigned int
2664ev_pending_count (EV_P) 3114ev_pending_count (EV_P) EV_THROW
2665{ 3115{
2666 int pri; 3116 int pri;
2667 unsigned int count = 0; 3117 unsigned int count = 0;
2668 3118
2669 for (pri = NUMPRI; pri--; ) 3119 for (pri = NUMPRI; pri--; )
… …
2673} 3123}
2674 3124
2675void noinline 3125void noinline
2676ev_invoke_pending (EV_P) 3126ev_invoke_pending (EV_P)
2677{ 3127{
2678 int pri; 3128 pendingpri = NUMPRI;
2679 3129
2680 for (pri = NUMPRI; pri--; ) 3130 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3131 {
3132 --pendingpri;
3133
2681 while (pendingcnt [pri]) 3134 while (pendingcnt [pendingpri])
2682 { 3135 {
2683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3136 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684 3137
2685 p->w->pending = 0; 3138 p->w->pending = 0;
2686 EV_CB_INVOKE (p->w, p->events); 3139 EV_CB_INVOKE (p->w, p->events);
2687 EV_FREQUENT_CHECK; 3140 EV_FREQUENT_CHECK;
2688 } 3141 }
3142 }
2689} 3143}
2690 3144
2691#if EV_IDLE_ENABLE 3145#if EV_IDLE_ENABLE
2692/* make idle watchers pending. this handles the "call-idle */ 3146/* make idle watchers pending. this handles the "call-idle */
2693/* only when higher priorities are idle" logic */ 3147/* only when higher priorities are idle" logic */
… …
2783{ 3237{
2784 EV_FREQUENT_CHECK; 3238 EV_FREQUENT_CHECK;
2785 3239
2786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3240 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787 { 3241 {
2788 int feed_count = 0;
2789
2790 do 3242 do
2791 { 3243 {
2792 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3244 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793 3245
2794 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3246 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2928 3380
2929 mn_now = ev_rt_now; 3381 mn_now = ev_rt_now;
2930 } 3382 }
2931} 3383}
2932 3384
2933void 3385int
2934ev_run (EV_P_ int flags) 3386ev_run (EV_P_ int flags)
2935{ 3387{
2936#if EV_FEATURE_API 3388#if EV_FEATURE_API
2937 ++loop_depth; 3389 ++loop_depth;
2938#endif 3390#endif
… …
3053 backend_poll (EV_A_ waittime); 3505 backend_poll (EV_A_ waittime);
3054 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3506 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055 3507
3056 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3508 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057 3509
3510 ECB_MEMORY_FENCE_ACQUIRE;
3058 if (pipe_write_skipped) 3511 if (pipe_write_skipped)
3059 { 3512 {
3060 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3513 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3514 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062 } 3515 }
… …
3095 loop_done = EVBREAK_CANCEL; 3548 loop_done = EVBREAK_CANCEL;
3096 3549
3097#if EV_FEATURE_API 3550#if EV_FEATURE_API
3098 --loop_depth; 3551 --loop_depth;
3099#endif 3552#endif
3553
3554 return activecnt;
3100} 3555}
3101 3556
3102void 3557void
3103ev_break (EV_P_ int how) 3558ev_break (EV_P_ int how) EV_THROW
3104{ 3559{
3105 loop_done = how; 3560 loop_done = how;
3106} 3561}
3107 3562
3108void 3563void
3109ev_ref (EV_P) 3564ev_ref (EV_P) EV_THROW
3110{ 3565{
3111 ++activecnt; 3566 ++activecnt;
3112} 3567}
3113 3568
3114void 3569void
3115ev_unref (EV_P) 3570ev_unref (EV_P) EV_THROW
3116{ 3571{
3117 --activecnt; 3572 --activecnt;
3118} 3573}
3119 3574
3120void 3575void
3121ev_now_update (EV_P) 3576ev_now_update (EV_P) EV_THROW
3122{ 3577{
3123 time_update (EV_A_ 1e100); 3578 time_update (EV_A_ 1e100);
3124} 3579}
3125 3580
3126void 3581void
3127ev_suspend (EV_P) 3582ev_suspend (EV_P) EV_THROW
3128{ 3583{
3129 ev_now_update (EV_A); 3584 ev_now_update (EV_A);
3130} 3585}
3131 3586
3132void 3587void
3133ev_resume (EV_P) 3588ev_resume (EV_P) EV_THROW
3134{ 3589{
3135 ev_tstamp mn_prev = mn_now; 3590 ev_tstamp mn_prev = mn_now;
3136 3591
3137 ev_now_update (EV_A); 3592 ev_now_update (EV_A);
3138 timers_reschedule (EV_A_ mn_now - mn_prev); 3593 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3177 w->pending = 0; 3632 w->pending = 0;
3178 } 3633 }
3179} 3634}
3180 3635
3181int 3636int
3182ev_clear_pending (EV_P_ void *w) 3637ev_clear_pending (EV_P_ void *w) EV_THROW
3183{ 3638{
3184 W w_ = (W)w; 3639 W w_ = (W)w;
3185 int pending = w_->pending; 3640 int pending = w_->pending;
3186 3641
3187 if (expect_true (pending)) 3642 if (expect_true (pending))
… …
3220} 3675}
3221 3676
3222/*****************************************************************************/ 3677/*****************************************************************************/
3223 3678
3224void noinline 3679void noinline
3225ev_io_start (EV_P_ ev_io *w) 3680ev_io_start (EV_P_ ev_io *w) EV_THROW
3226{ 3681{
3227 int fd = w->fd; 3682 int fd = w->fd;
3228 3683
3229 if (expect_false (ev_is_active (w))) 3684 if (expect_false (ev_is_active (w)))
3230 return; 3685 return;
… …
3236 3691
3237 ev_start (EV_A_ (W)w, 1); 3692 ev_start (EV_A_ (W)w, 1);
3238 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3693 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3239 wlist_add (&anfds[fd].head, (WL)w); 3694 wlist_add (&anfds[fd].head, (WL)w);
3240 3695
3696 /* common bug, apparently */
3697 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3698
3241 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3699 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242 w->events &= ~EV__IOFDSET; 3700 w->events &= ~EV__IOFDSET;
3243 3701
3244 EV_FREQUENT_CHECK; 3702 EV_FREQUENT_CHECK;
3245} 3703}
3246 3704
3247void noinline 3705void noinline
3248ev_io_stop (EV_P_ ev_io *w) 3706ev_io_stop (EV_P_ ev_io *w) EV_THROW
3249{ 3707{
3250 clear_pending (EV_A_ (W)w); 3708 clear_pending (EV_A_ (W)w);
3251 if (expect_false (!ev_is_active (w))) 3709 if (expect_false (!ev_is_active (w)))
3252 return; 3710 return;
3253 3711
… …
3262 3720
3263 EV_FREQUENT_CHECK; 3721 EV_FREQUENT_CHECK;
3264} 3722}
3265 3723
3266void noinline 3724void noinline
3267ev_timer_start (EV_P_ ev_timer *w) 3725ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3268{ 3726{
3269 if (expect_false (ev_is_active (w))) 3727 if (expect_false (ev_is_active (w)))
3270 return; 3728 return;
3271 3729
3272 ev_at (w) += mn_now; 3730 ev_at (w) += mn_now;
… …
3286 3744
3287 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3745 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288} 3746}
3289 3747
3290void noinline 3748void noinline
3291ev_timer_stop (EV_P_ ev_timer *w) 3749ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3292{ 3750{
3293 clear_pending (EV_A_ (W)w); 3751 clear_pending (EV_A_ (W)w);
3294 if (expect_false (!ev_is_active (w))) 3752 if (expect_false (!ev_is_active (w)))
3295 return; 3753 return;
3296 3754
… …
3316 3774
3317 EV_FREQUENT_CHECK; 3775 EV_FREQUENT_CHECK;
3318} 3776}
3319 3777
3320void noinline 3778void noinline
3321ev_timer_again (EV_P_ ev_timer *w) 3779ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3322{ 3780{
3323 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
3324 3782
3325 clear_pending (EV_A_ (W)w); 3783 clear_pending (EV_A_ (W)w);
3326 3784
… …
3343 3801
3344 EV_FREQUENT_CHECK; 3802 EV_FREQUENT_CHECK;
3345} 3803}
3346 3804
3347ev_tstamp 3805ev_tstamp
3348ev_timer_remaining (EV_P_ ev_timer *w) 3806ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3349{ 3807{
3350 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3808 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3351} 3809}
3352 3810
3353#if EV_PERIODIC_ENABLE 3811#if EV_PERIODIC_ENABLE
3354void noinline 3812void noinline
3355ev_periodic_start (EV_P_ ev_periodic *w) 3813ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3356{ 3814{
3357 if (expect_false (ev_is_active (w))) 3815 if (expect_false (ev_is_active (w)))
3358 return; 3816 return;
3359 3817
3360 if (w->reschedule_cb) 3818 if (w->reschedule_cb)
… …
3380 3838
3381 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3839 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382} 3840}
3383 3841
3384void noinline 3842void noinline
3385ev_periodic_stop (EV_P_ ev_periodic *w) 3843ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3386{ 3844{
3387 clear_pending (EV_A_ (W)w); 3845 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 3846 if (expect_false (!ev_is_active (w)))
3389 return; 3847 return;
3390 3848
… …
3408 3866
3409 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
3410} 3868}
3411 3869
3412void noinline 3870void noinline
3413ev_periodic_again (EV_P_ ev_periodic *w) 3871ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3414{ 3872{
3415 /* TODO: use adjustheap and recalculation */ 3873 /* TODO: use adjustheap and recalculation */
3416 ev_periodic_stop (EV_A_ w); 3874 ev_periodic_stop (EV_A_ w);
3417 ev_periodic_start (EV_A_ w); 3875 ev_periodic_start (EV_A_ w);
3418} 3876}
… …
3423#endif 3881#endif
3424 3882
3425#if EV_SIGNAL_ENABLE 3883#if EV_SIGNAL_ENABLE
3426 3884
3427void noinline 3885void noinline
3428ev_signal_start (EV_P_ ev_signal *w) 3886ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3429{ 3887{
3430 if (expect_false (ev_is_active (w))) 3888 if (expect_false (ev_is_active (w)))
3431 return; 3889 return;
3432 3890
3433 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3891 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3435#if EV_MULTIPLICITY 3893#if EV_MULTIPLICITY
3436 assert (("libev: a signal must not be attached to two different loops", 3894 assert (("libev: a signal must not be attached to two different loops",
3437 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3895 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3438 3896
3439 signals [w->signum - 1].loop = EV_A; 3897 signals [w->signum - 1].loop = EV_A;
3898 ECB_MEMORY_FENCE_RELEASE;
3440#endif 3899#endif
3441 3900
3442 EV_FREQUENT_CHECK; 3901 EV_FREQUENT_CHECK;
3443 3902
3444#if EV_USE_SIGNALFD 3903#if EV_USE_SIGNALFD
… …
3504 3963
3505 EV_FREQUENT_CHECK; 3964 EV_FREQUENT_CHECK;
3506} 3965}
3507 3966
3508void noinline 3967void noinline
3509ev_signal_stop (EV_P_ ev_signal *w) 3968ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3510{ 3969{
3511 clear_pending (EV_A_ (W)w); 3970 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 3971 if (expect_false (!ev_is_active (w)))
3513 return; 3972 return;
3514 3973
… …
3545#endif 4004#endif
3546 4005
3547#if EV_CHILD_ENABLE 4006#if EV_CHILD_ENABLE
3548 4007
3549void 4008void
3550ev_child_start (EV_P_ ev_child *w) 4009ev_child_start (EV_P_ ev_child *w) EV_THROW
3551{ 4010{
3552#if EV_MULTIPLICITY 4011#if EV_MULTIPLICITY
3553 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4012 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554#endif 4013#endif
3555 if (expect_false (ev_is_active (w))) 4014 if (expect_false (ev_is_active (w)))
… …
3562 4021
3563 EV_FREQUENT_CHECK; 4022 EV_FREQUENT_CHECK;
3564} 4023}
3565 4024
3566void 4025void
3567ev_child_stop (EV_P_ ev_child *w) 4026ev_child_stop (EV_P_ ev_child *w) EV_THROW
3568{ 4027{
3569 clear_pending (EV_A_ (W)w); 4028 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 4029 if (expect_false (!ev_is_active (w)))
3571 return; 4030 return;
3572 4031
… …
3599# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4058# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3600 4059
3601static void noinline 4060static void noinline
3602infy_add (EV_P_ ev_stat *w) 4061infy_add (EV_P_ ev_stat *w)
3603{ 4062{
3604 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); 4063 w->wd = inotify_add_watch (fs_fd, w->path,
4064 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4065 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4066 | IN_DONT_FOLLOW | IN_MASK_ADD);
3605 4067
3606 if (w->wd >= 0) 4068 if (w->wd >= 0)
3607 { 4069 {
3608 struct statfs sfs; 4070 struct statfs sfs;
3609 4071
… …
3613 4075
3614 if (!fs_2625) 4076 if (!fs_2625)
3615 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4077 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3616 else if (!statfs (w->path, &sfs) 4078 else if (!statfs (w->path, &sfs)
3617 && (sfs.f_type == 0x1373 /* devfs */ 4079 && (sfs.f_type == 0x1373 /* devfs */
4080 || sfs.f_type == 0x4006 /* fat */
4081 || sfs.f_type == 0x4d44 /* msdos */
3618 || sfs.f_type == 0xEF53 /* ext2/3 */ 4082 || sfs.f_type == 0xEF53 /* ext2/3 */
4083 || sfs.f_type == 0x72b6 /* jffs2 */
4084 || sfs.f_type == 0x858458f6 /* ramfs */
4085 || sfs.f_type == 0x5346544e /* ntfs */
3619 || sfs.f_type == 0x3153464a /* jfs */ 4086 || sfs.f_type == 0x3153464a /* jfs */
4087 || sfs.f_type == 0x9123683e /* btrfs */
3620 || sfs.f_type == 0x52654973 /* reiser3 */ 4088 || sfs.f_type == 0x52654973 /* reiser3 */
3621 || sfs.f_type == 0x01021994 /* tempfs */ 4089 || sfs.f_type == 0x01021994 /* tmpfs */
3622 || sfs.f_type == 0x58465342 /* xfs */)) 4090 || sfs.f_type == 0x58465342 /* xfs */))
3623 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4091 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3624 else 4092 else
3625 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4093 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3626 } 4094 }
… …
3739} 4207}
3740 4208
3741inline_size int 4209inline_size int
3742infy_newfd (void) 4210infy_newfd (void)
3743{ 4211{
3744#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4212#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4213 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746 if (fd >= 0) 4214 if (fd >= 0)
3747 return fd; 4215 return fd;
3748#endif 4216#endif
3749 return inotify_init (); 4217 return inotify_init ();
… …
3824#else 4292#else
3825# define EV_LSTAT(p,b) lstat (p, b) 4293# define EV_LSTAT(p,b) lstat (p, b)
3826#endif 4294#endif
3827 4295
3828void 4296void
3829ev_stat_stat (EV_P_ ev_stat *w) 4297ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3830{ 4298{
3831 if (lstat (w->path, &w->attr) < 0) 4299 if (lstat (w->path, &w->attr) < 0)
3832 w->attr.st_nlink = 0; 4300 w->attr.st_nlink = 0;
3833 else if (!w->attr.st_nlink) 4301 else if (!w->attr.st_nlink)
3834 w->attr.st_nlink = 1; 4302 w->attr.st_nlink = 1;
… …
3873 ev_feed_event (EV_A_ w, EV_STAT); 4341 ev_feed_event (EV_A_ w, EV_STAT);
3874 } 4342 }
3875} 4343}
3876 4344
3877void 4345void
3878ev_stat_start (EV_P_ ev_stat *w) 4346ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3879{ 4347{
3880 if (expect_false (ev_is_active (w))) 4348 if (expect_false (ev_is_active (w)))
3881 return; 4349 return;
3882 4350
3883 ev_stat_stat (EV_A_ w); 4351 ev_stat_stat (EV_A_ w);
… …
3904 4372
3905 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3906} 4374}
3907 4375
3908void 4376void
3909ev_stat_stop (EV_P_ ev_stat *w) 4377ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3910{ 4378{
3911 clear_pending (EV_A_ (W)w); 4379 clear_pending (EV_A_ (W)w);
3912 if (expect_false (!ev_is_active (w))) 4380 if (expect_false (!ev_is_active (w)))
3913 return; 4381 return;
3914 4382
… …
3930} 4398}
3931#endif 4399#endif
3932 4400
3933#if EV_IDLE_ENABLE 4401#if EV_IDLE_ENABLE
3934void 4402void
3935ev_idle_start (EV_P_ ev_idle *w) 4403ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3936{ 4404{
3937 if (expect_false (ev_is_active (w))) 4405 if (expect_false (ev_is_active (w)))
3938 return; 4406 return;
3939 4407
3940 pri_adjust (EV_A_ (W)w); 4408 pri_adjust (EV_A_ (W)w);
… …
3953 4421
3954 EV_FREQUENT_CHECK; 4422 EV_FREQUENT_CHECK;
3955} 4423}
3956 4424
3957void 4425void
3958ev_idle_stop (EV_P_ ev_idle *w) 4426ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3959{ 4427{
3960 clear_pending (EV_A_ (W)w); 4428 clear_pending (EV_A_ (W)w);
3961 if (expect_false (!ev_is_active (w))) 4429 if (expect_false (!ev_is_active (w)))
3962 return; 4430 return;
3963 4431
… …
3977} 4445}
3978#endif 4446#endif
3979 4447
3980#if EV_PREPARE_ENABLE 4448#if EV_PREPARE_ENABLE
3981void 4449void
3982ev_prepare_start (EV_P_ ev_prepare *w) 4450ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3983{ 4451{
3984 if (expect_false (ev_is_active (w))) 4452 if (expect_false (ev_is_active (w)))
3985 return; 4453 return;
3986 4454
3987 EV_FREQUENT_CHECK; 4455 EV_FREQUENT_CHECK;
… …
3992 4460
3993 EV_FREQUENT_CHECK; 4461 EV_FREQUENT_CHECK;
3994} 4462}
3995 4463
3996void 4464void
3997ev_prepare_stop (EV_P_ ev_prepare *w) 4465ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3998{ 4466{
3999 clear_pending (EV_A_ (W)w); 4467 clear_pending (EV_A_ (W)w);
4000 if (expect_false (!ev_is_active (w))) 4468 if (expect_false (!ev_is_active (w)))
4001 return; 4469 return;
4002 4470
… …
4015} 4483}
4016#endif 4484#endif
4017 4485
4018#if EV_CHECK_ENABLE 4486#if EV_CHECK_ENABLE
4019void 4487void
4020ev_check_start (EV_P_ ev_check *w) 4488ev_check_start (EV_P_ ev_check *w) EV_THROW
4021{ 4489{
4022 if (expect_false (ev_is_active (w))) 4490 if (expect_false (ev_is_active (w)))
4023 return; 4491 return;
4024 4492
4025 EV_FREQUENT_CHECK; 4493 EV_FREQUENT_CHECK;
… …
4030 4498
4031 EV_FREQUENT_CHECK; 4499 EV_FREQUENT_CHECK;
4032} 4500}
4033 4501
4034void 4502void
4035ev_check_stop (EV_P_ ev_check *w) 4503ev_check_stop (EV_P_ ev_check *w) EV_THROW
4036{ 4504{
4037 clear_pending (EV_A_ (W)w); 4505 clear_pending (EV_A_ (W)w);
4038 if (expect_false (!ev_is_active (w))) 4506 if (expect_false (!ev_is_active (w)))
4039 return; 4507 return;
4040 4508
… …
4053} 4521}
4054#endif 4522#endif
4055 4523
4056#if EV_EMBED_ENABLE 4524#if EV_EMBED_ENABLE
4057void noinline 4525void noinline
4058ev_embed_sweep (EV_P_ ev_embed *w) 4526ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4059{ 4527{
4060 ev_run (w->other, EVRUN_NOWAIT); 4528 ev_run (w->other, EVRUN_NOWAIT);
4061} 4529}
4062 4530
4063static void 4531static void
… …
4111 ev_idle_stop (EV_A_ idle); 4579 ev_idle_stop (EV_A_ idle);
4112} 4580}
4113#endif 4581#endif
4114 4582
4115void 4583void
4116ev_embed_start (EV_P_ ev_embed *w) 4584ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4117{ 4585{
4118 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
4119 return; 4587 return;
4120 4588
4121 { 4589 {
… …
4142 4610
4143 EV_FREQUENT_CHECK; 4611 EV_FREQUENT_CHECK;
4144} 4612}
4145 4613
4146void 4614void
4147ev_embed_stop (EV_P_ ev_embed *w) 4615ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4148{ 4616{
4149 clear_pending (EV_A_ (W)w); 4617 clear_pending (EV_A_ (W)w);
4150 if (expect_false (!ev_is_active (w))) 4618 if (expect_false (!ev_is_active (w)))
4151 return; 4619 return;
4152 4620
… …
4162} 4630}
4163#endif 4631#endif
4164 4632
4165#if EV_FORK_ENABLE 4633#if EV_FORK_ENABLE
4166void 4634void
4167ev_fork_start (EV_P_ ev_fork *w) 4635ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4168{ 4636{
4169 if (expect_false (ev_is_active (w))) 4637 if (expect_false (ev_is_active (w)))
4170 return; 4638 return;
4171 4639
4172 EV_FREQUENT_CHECK; 4640 EV_FREQUENT_CHECK;
… …
4177 4645
4178 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4179} 4647}
4180 4648
4181void 4649void
4182ev_fork_stop (EV_P_ ev_fork *w) 4650ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4183{ 4651{
4184 clear_pending (EV_A_ (W)w); 4652 clear_pending (EV_A_ (W)w);
4185 if (expect_false (!ev_is_active (w))) 4653 if (expect_false (!ev_is_active (w)))
4186 return; 4654 return;
4187 4655
… …
4200} 4668}
4201#endif 4669#endif
4202 4670
4203#if EV_CLEANUP_ENABLE 4671#if EV_CLEANUP_ENABLE
4204void 4672void
4205ev_cleanup_start (EV_P_ ev_cleanup *w) 4673ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4206{ 4674{
4207 if (expect_false (ev_is_active (w))) 4675 if (expect_false (ev_is_active (w)))
4208 return; 4676 return;
4209 4677
4210 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
… …
4217 ev_unref (EV_A); 4685 ev_unref (EV_A);
4218 EV_FREQUENT_CHECK; 4686 EV_FREQUENT_CHECK;
4219} 4687}
4220 4688
4221void 4689void
4222ev_cleanup_stop (EV_P_ ev_cleanup *w) 4690ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4223{ 4691{
4224 clear_pending (EV_A_ (W)w); 4692 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4693 if (expect_false (!ev_is_active (w)))
4226 return; 4694 return;
4227 4695
… …
4241} 4709}
4242#endif 4710#endif
4243 4711
4244#if EV_ASYNC_ENABLE 4712#if EV_ASYNC_ENABLE
4245void 4713void
4246ev_async_start (EV_P_ ev_async *w) 4714ev_async_start (EV_P_ ev_async *w) EV_THROW
4247{ 4715{
4248 if (expect_false (ev_is_active (w))) 4716 if (expect_false (ev_is_active (w)))
4249 return; 4717 return;
4250 4718
4251 w->sent = 0; 4719 w->sent = 0;
… …
4260 4728
4261 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
4262} 4730}
4263 4731
4264void 4732void
4265ev_async_stop (EV_P_ ev_async *w) 4733ev_async_stop (EV_P_ ev_async *w) EV_THROW
4266{ 4734{
4267 clear_pending (EV_A_ (W)w); 4735 clear_pending (EV_A_ (W)w);
4268 if (expect_false (!ev_is_active (w))) 4736 if (expect_false (!ev_is_active (w)))
4269 return; 4737 return;
4270 4738
… …
4281 4749
4282 EV_FREQUENT_CHECK; 4750 EV_FREQUENT_CHECK;
4283} 4751}
4284 4752
4285void 4753void
4286ev_async_send (EV_P_ ev_async *w) 4754ev_async_send (EV_P_ ev_async *w) EV_THROW
4287{ 4755{
4288 w->sent = 1; 4756 w->sent = 1;
4289 evpipe_write (EV_A_ &async_pending); 4757 evpipe_write (EV_A_ &async_pending);
4290} 4758}
4291#endif 4759#endif
… …
4328 4796
4329 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4797 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330} 4798}
4331 4799
4332void 4800void
4333ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4801ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4334{ 4802{
4335 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4803 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336 4804
4337 if (expect_false (!once)) 4805 if (expect_false (!once))
4338 { 4806 {
… …
4360 4828
4361/*****************************************************************************/ 4829/*****************************************************************************/
4362 4830
4363#if EV_WALK_ENABLE 4831#if EV_WALK_ENABLE
4364void ecb_cold 4832void ecb_cold
4365ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4833ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4366{ 4834{
4367 int i, j; 4835 int i, j;
4368 ev_watcher_list *wl, *wn; 4836 ev_watcher_list *wl, *wn;
4369 4837
4370 if (types & (EV_IO | EV_EMBED)) 4838 if (types & (EV_IO | EV_EMBED))

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines