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Comparing libev/ev.c (file contents):
Revision 1.395 by root, Wed Aug 24 16:08:17 2011 UTC vs.
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
254#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 273# else
258# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
259# endif 275# endif
260#endif 276#endif
… …
347 363
348#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 366#endif
351 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 387# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
360# else 392# else
… …
363# endif 395# endif
364#endif 396#endif
365 397
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 399
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
377#endif 403#endif
378 404
… …
386# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
387#endif 413#endif
388 414
389#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 418# include <sys/select.h>
393# endif 419# endif
394#endif 420#endif
395 421
396#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
403# endif 429# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 430#endif
409 431
410#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 434# include <stdint.h>
… …
469/* 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 */
470/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
471/* 493/*
472 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
473 * 495 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved. 498 * All rights reserved.
477 * 499 *
478 * 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-
479 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
… …
493 * 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;
494 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
495 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
496 * 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
497 * 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.
498 */ 531 */
499 532
500#ifndef ECB_H 533#ifndef ECB_H
501#define ECB_H 534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
502 538
503#ifdef _WIN32 539#ifdef _WIN32
504 typedef signed char int8_t; 540 typedef signed char int8_t;
505 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
506 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
512 typedef unsigned long long uint64_t; 548 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */ 549 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t; 550 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t; 551 typedef unsigned __int64 uint64_t;
516 #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
517#else 562#else
518 #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/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
577 #endif
519#endif 578#endif
520 579
521/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 583 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 584 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 585 * an issue with that they should have done it right in the first place.
527 */ 586 */
528#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 587#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 588 #define ECB_GCC_VERSION(major,minor) 0
531 #else 589#else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 590 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 591#endif
592
593#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
594
595#if __clang__ && defined __has_builtin
596 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
597#else
598 #define ECB_CLANG_BUILTIN(x) 0
599#endif
600
601#if __clang__ && defined __has_extension
602 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
603#else
604 #define ECB_CLANG_EXTENSION(x) 0
605#endif
606
607#define ECB_CPP (__cplusplus+0)
608#define ECB_CPP11 (__cplusplus >= 201103L)
609
610#if ECB_CPP
611 #define ECB_C 0
612 #define ECB_STDC_VERSION 0
613#else
614 #define ECB_C 1
615 #define ECB_STDC_VERSION __STDC_VERSION__
616#endif
617
618#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
619#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
620
621#if ECB_CPP
622 #define ECB_EXTERN_C extern "C"
623 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
624 #define ECB_EXTERN_C_END }
625#else
626 #define ECB_EXTERN_C extern
627 #define ECB_EXTERN_C_BEG
628 #define ECB_EXTERN_C_END
534#endif 629#endif
535 630
536/*****************************************************************************/ 631/*****************************************************************************/
537 632
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 633/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 634/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 635
541#if ECB_NO_THREADS || ECB_NO_SMP 636#if ECB_NO_THREADS
637 #define ECB_NO_SMP 1
638#endif
639
640#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 641 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 642#endif
544 643
545#ifndef ECB_MEMORY_FENCE 644#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 645 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 646 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 648 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 649 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 650 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 652 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 653 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 654 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 656 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 657 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 659 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 660 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
662 #elif __aarch64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
664 #elif (__sparc || __sparc__) && !__sparcv8
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
668 #elif defined __s390__ || defined __s390x__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
670 #elif defined __mips__
671 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
672 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
674 #elif defined __alpha__
675 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
676 #elif defined __hppa__
677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
679 #elif defined __ia64__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
681 #elif defined __m68k__
682 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
683 #elif defined __m88k__
684 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
685 #elif defined __sh__
686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
563 #endif 687 #endif
564 #endif 688 #endif
565#endif 689#endif
566 690
567#ifndef ECB_MEMORY_FENCE 691#ifndef ECB_MEMORY_FENCE
692 #if ECB_GCC_VERSION(4,7)
693 /* see comment below (stdatomic.h) about the C11 memory model. */
694 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
695 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
696 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
697
698 #elif ECB_CLANG_EXTENSION(c_atomic)
699 /* see comment below (stdatomic.h) about the C11 memory model. */
700 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
701 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
702 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
703
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 704 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 705 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 706 #elif _MSC_VER >= 1500 /* VC++ 2008 */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 707 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
708 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
709 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
710 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
711 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 712 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 713 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 714 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 715 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 716 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 717 #elif defined _WIN32
578 #include <WinNT.h> 718 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 719 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
720 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
721 #include <mbarrier.h>
722 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
723 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
724 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
725 #elif __xlC__
726 #define ECB_MEMORY_FENCE __sync ()
727 #endif
728#endif
729
730#ifndef ECB_MEMORY_FENCE
731 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
732 /* we assume that these memory fences work on all variables/all memory accesses, */
733 /* not just C11 atomics and atomic accesses */
734 #include <stdatomic.h>
735 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
736 /* any fence other than seq_cst, which isn't very efficient for us. */
737 /* Why that is, we don't know - either the C11 memory model is quite useless */
738 /* for most usages, or gcc and clang have a bug */
739 /* I *currently* lean towards the latter, and inefficiently implement */
740 /* all three of ecb's fences as a seq_cst fence */
741 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
742 /* for all __atomic_thread_fence's except seq_cst */
743 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 744 #endif
581#endif 745#endif
582 746
583#ifndef ECB_MEMORY_FENCE 747#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 748 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 760 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 761 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 762 #endif
599#endif 763#endif
600 764
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 765#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 766 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 767#endif
604 768
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 769#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 770 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 771#endif
608 772
609/*****************************************************************************/ 773/*****************************************************************************/
610 774
611#define ECB_C99 (__STDC_VERSION__ >= 199901L) 775#if ECB_CPP
612
613#if __cplusplus
614 #define ecb_inline static inline 776 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 777#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 778 #define ecb_inline static __inline__
617#elif ECB_C99 779#elif ECB_C99
618 #define ecb_inline static inline 780 #define ecb_inline static inline
… …
635#define ECB_STRINGIFY_(a) # a 797#define ECB_STRINGIFY_(a) # a
636#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 798#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
637 799
638#define ecb_function_ ecb_inline 800#define ecb_function_ ecb_inline
639 801
640#if ECB_GCC_VERSION(3,1) 802#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
641 #define ecb_attribute(attrlist) __attribute__(attrlist) 803 #define ecb_attribute(attrlist) __attribute__ (attrlist)
804#else
805 #define ecb_attribute(attrlist)
806#endif
807
808#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
642 #define ecb_is_constant(expr) __builtin_constant_p (expr) 809 #define ecb_is_constant(expr) __builtin_constant_p (expr)
810#else
811 /* possible C11 impl for integral types
812 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
813 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
814
815 #define ecb_is_constant(expr) 0
816#endif
817
818#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
643 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 819 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
820#else
821 #define ecb_expect(expr,value) (expr)
822#endif
823
824#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
644 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 825 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
645#else 826#else
646 #define ecb_attribute(attrlist)
647 #define ecb_is_constant(expr) 0
648 #define ecb_expect(expr,value) (expr)
649 #define ecb_prefetch(addr,rw,locality) 827 #define ecb_prefetch(addr,rw,locality)
650#endif 828#endif
651 829
652/* no emulation for ecb_decltype */ 830/* no emulation for ecb_decltype */
653#if ECB_GCC_VERSION(4,5) 831#if ECB_CPP11
832 // older implementations might have problems with decltype(x)::type, work around it
833 template<class T> struct ecb_decltype_t { typedef T type; };
654 #define ecb_decltype(x) __decltype(x) 834 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
655#elif ECB_GCC_VERSION(3,0) 835#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
656 #define ecb_decltype(x) __typeof(x) 836 #define ecb_decltype(x) __typeof__ (x)
837#endif
838
839#if _MSC_VER >= 1300
840 #define ecb_deprecated __declspec (deprecated)
841#else
842 #define ecb_deprecated ecb_attribute ((__deprecated__))
657#endif 843#endif
658 844
659#define ecb_noinline ecb_attribute ((__noinline__)) 845#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 846#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 847#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 848#define ecb_pure ecb_attribute ((__pure__))
849
850/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
851#if ECB_C11 || __IBMC_NORETURN
852 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
853 #define ecb_noreturn _Noreturn
854#else
855 #define ecb_noreturn ecb_attribute ((__noreturn__))
856#endif
664 857
665#if ECB_GCC_VERSION(4,3) 858#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 859 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 860 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 861 #define ecb_cold ecb_attribute ((__cold__))
… …
680/* for compatibility to the rest of the world */ 873/* for compatibility to the rest of the world */
681#define ecb_likely(expr) ecb_expect_true (expr) 874#define ecb_likely(expr) ecb_expect_true (expr)
682#define ecb_unlikely(expr) ecb_expect_false (expr) 875#define ecb_unlikely(expr) ecb_expect_false (expr)
683 876
684/* count trailing zero bits and count # of one bits */ 877/* count trailing zero bits and count # of one bits */
685#if ECB_GCC_VERSION(3,4) 878#if ECB_GCC_VERSION(3,4) \
879 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
880 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
881 && ECB_CLANG_BUILTIN(__builtin_popcount))
686 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 882 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
687 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 883 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
688 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 884 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
689 #define ecb_ctz32(x) __builtin_ctz (x) 885 #define ecb_ctz32(x) __builtin_ctz (x)
690 #define ecb_ctz64(x) __builtin_ctzll (x) 886 #define ecb_ctz64(x) __builtin_ctzll (x)
691 #define ecb_popcount32(x) __builtin_popcount (x) 887 #define ecb_popcount32(x) __builtin_popcount (x)
692 /* no popcountll */ 888 /* no popcountll */
693#else 889#else
694 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 890 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
695 ecb_function_ int 891 ecb_function_ ecb_const int
696 ecb_ctz32 (uint32_t x) 892 ecb_ctz32 (uint32_t x)
697 { 893 {
698 int r = 0; 894 int r = 0;
699 895
700 x &= ~x + 1; /* this isolates the lowest bit */ 896 x &= ~x + 1; /* this isolates the lowest bit */
… …
714#endif 910#endif
715 911
716 return r; 912 return r;
717 } 913 }
718 914
719 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 915 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
720 ecb_function_ int 916 ecb_function_ ecb_const int
721 ecb_ctz64 (uint64_t x) 917 ecb_ctz64 (uint64_t x)
722 { 918 {
723 int shift = x & 0xffffffffU ? 0 : 32; 919 int shift = x & 0xffffffffU ? 0 : 32;
724 return ecb_ctz32 (x >> shift) + shift; 920 return ecb_ctz32 (x >> shift) + shift;
725 } 921 }
726 922
727 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 923 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
728 ecb_function_ int 924 ecb_function_ ecb_const int
729 ecb_popcount32 (uint32_t x) 925 ecb_popcount32 (uint32_t x)
730 { 926 {
731 x -= (x >> 1) & 0x55555555; 927 x -= (x >> 1) & 0x55555555;
732 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 928 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
733 x = ((x >> 4) + x) & 0x0f0f0f0f; 929 x = ((x >> 4) + x) & 0x0f0f0f0f;
734 x *= 0x01010101; 930 x *= 0x01010101;
735 931
736 return x >> 24; 932 return x >> 24;
737 } 933 }
738 934
739 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 935 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
740 ecb_function_ int ecb_ld32 (uint32_t x) 936 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
741 { 937 {
742 int r = 0; 938 int r = 0;
743 939
744 if (x >> 16) { x >>= 16; r += 16; } 940 if (x >> 16) { x >>= 16; r += 16; }
745 if (x >> 8) { x >>= 8; r += 8; } 941 if (x >> 8) { x >>= 8; r += 8; }
… …
748 if (x >> 1) { r += 1; } 944 if (x >> 1) { r += 1; }
749 945
750 return r; 946 return r;
751 } 947 }
752 948
753 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
754 ecb_function_ int ecb_ld64 (uint64_t x) 950 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
755 { 951 {
756 int r = 0; 952 int r = 0;
757 953
758 if (x >> 32) { x >>= 32; r += 32; } 954 if (x >> 32) { x >>= 32; r += 32; }
759 955
760 return r + ecb_ld32 (x); 956 return r + ecb_ld32 (x);
761 } 957 }
762#endif 958#endif
763 959
960ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
961ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
962ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
963ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
964
965ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
966ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
967{
968 return ( (x * 0x0802U & 0x22110U)
969 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
970}
971
972ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
973ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
974{
975 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
976 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
977 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
978 x = ( x >> 8 ) | ( x << 8);
979
980 return x;
981}
982
983ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
984ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
985{
986 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
987 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
988 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
989 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
990 x = ( x >> 16 ) | ( x << 16);
991
992 return x;
993}
994
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 995/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 996/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 997ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
767ecb_function_ int 998ecb_function_ ecb_const int
768ecb_popcount64 (uint64_t x) 999ecb_popcount64 (uint64_t x)
769{ 1000{
770 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1001 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
771} 1002}
772 1003
773ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1004ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
774ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1005ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
775ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1006ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
776ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1007ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
777ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1008ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
778ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1009ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
779ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1010ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
780ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1011ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
781 1012
782ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1013ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
783ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1014ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
784ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1015ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
785ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1016ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
786ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1017ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
787ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1018ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
788ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1019ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
789ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1020ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
790 1021
791#if ECB_GCC_VERSION(4,3) 1022#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
792 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1023 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
793 #define ecb_bswap32(x) __builtin_bswap32 (x) 1024 #define ecb_bswap32(x) __builtin_bswap32 (x)
794 #define ecb_bswap64(x) __builtin_bswap64 (x) 1025 #define ecb_bswap64(x) __builtin_bswap64 (x)
795#else 1026#else
796 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1027 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
797 ecb_function_ uint16_t 1028 ecb_function_ ecb_const uint16_t
798 ecb_bswap16 (uint16_t x) 1029 ecb_bswap16 (uint16_t x)
799 { 1030 {
800 return ecb_rotl16 (x, 8); 1031 return ecb_rotl16 (x, 8);
801 } 1032 }
802 1033
803 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1034 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
804 ecb_function_ uint32_t 1035 ecb_function_ ecb_const uint32_t
805 ecb_bswap32 (uint32_t x) 1036 ecb_bswap32 (uint32_t x)
806 { 1037 {
807 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1038 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
808 } 1039 }
809 1040
810 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1041 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
811 ecb_function_ uint64_t 1042 ecb_function_ ecb_const uint64_t
812 ecb_bswap64 (uint64_t x) 1043 ecb_bswap64 (uint64_t x)
813 { 1044 {
814 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1045 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
815 } 1046 }
816#endif 1047#endif
817 1048
818#if ECB_GCC_VERSION(4,5) 1049#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
819 #define ecb_unreachable() __builtin_unreachable () 1050 #define ecb_unreachable() __builtin_unreachable ()
820#else 1051#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1052 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 1053 ecb_inline ecb_noreturn void ecb_unreachable (void);
823 ecb_function_ void ecb_unreachable (void) { } 1054 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
824#endif 1055#endif
825 1056
826/* try to tell the compiler that some condition is definitely true */ 1057/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1058#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 1059
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 1060ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
830ecb_function_ unsigned char 1061ecb_inline ecb_const unsigned char
831ecb_byteorder_helper (void) 1062ecb_byteorder_helper (void)
832{ 1063{
833 const uint32_t u = 0x11223344; 1064 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 1065 /* but less than using pointers, and always seems to */
1066 /* successfully return a constant. */
1067 /* the reason why we have this horrible preprocessor mess */
1068 /* is to avoid it in all cases, at least on common architectures */
1069 /* or when using a recent enough gcc version (>= 4.6) */
1070#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1071 return 0x44;
1072#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1073 return 0x44;
1074#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1075 return 0x11;
1076#else
1077 union
1078 {
1079 uint32_t i;
1080 uint8_t c;
1081 } u = { 0x11223344 };
1082 return u.c;
1083#endif
835} 1084}
836 1085
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1086ecb_inline ecb_const ecb_bool ecb_big_endian (void);
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1087ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1088ecb_inline ecb_const ecb_bool ecb_little_endian (void);
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1089ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 1090
842#if ECB_GCC_VERSION(3,0) || ECB_C99 1091#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1092 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 1093#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1094 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1095#endif
1096
1097#if ECB_CPP
1098 template<typename T>
1099 static inline T ecb_div_rd (T val, T div)
1100 {
1101 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1102 }
1103 template<typename T>
1104 static inline T ecb_div_ru (T val, T div)
1105 {
1106 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1107 }
1108#else
1109 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1110 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 1111#endif
847 1112
848#if ecb_cplusplus_does_not_suck 1113#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1114 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 1115 template<typename T, int N>
… …
854 } 1119 }
855#else 1120#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1121 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif 1122#endif
858 1123
1124/*******************************************************************************/
1125/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1126
1127/* basically, everything uses "ieee pure-endian" floating point numbers */
1128/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1129#if 0 \
1130 || __i386 || __i386__ \
1131 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1132 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1133 || defined __s390__ || defined __s390x__ \
1134 || defined __mips__ \
1135 || defined __alpha__ \
1136 || defined __hppa__ \
1137 || defined __ia64__ \
1138 || defined __m68k__ \
1139 || defined __m88k__ \
1140 || defined __sh__ \
1141 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1142 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1143 || defined __aarch64__
1144 #define ECB_STDFP 1
1145 #include <string.h> /* for memcpy */
1146#else
1147 #define ECB_STDFP 0
1148#endif
1149
1150#ifndef ECB_NO_LIBM
1151
1152 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1153
1154 /* only the oldest of old doesn't have this one. solaris. */
1155 #ifdef INFINITY
1156 #define ECB_INFINITY INFINITY
1157 #else
1158 #define ECB_INFINITY HUGE_VAL
1159 #endif
1160
1161 #ifdef NAN
1162 #define ECB_NAN NAN
1163 #else
1164 #define ECB_NAN ECB_INFINITY
1165 #endif
1166
1167 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1168 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1169 #else
1170 #define ecb_ldexpf(x,e) (float) ldexp ((x), (e))
1171 #endif
1172
1173 /* converts an ieee half/binary16 to a float */
1174 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1175 ecb_function_ ecb_const float
1176 ecb_binary16_to_float (uint16_t x)
1177 {
1178 int e = (x >> 10) & 0x1f;
1179 int m = x & 0x3ff;
1180 float r;
1181
1182 if (!e ) r = ecb_ldexpf (m , -24);
1183 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1184 else if (m ) r = ECB_NAN;
1185 else r = ECB_INFINITY;
1186
1187 return x & 0x8000 ? -r : r;
1188 }
1189
1190 /* convert a float to ieee single/binary32 */
1191 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1192 ecb_function_ ecb_const uint32_t
1193 ecb_float_to_binary32 (float x)
1194 {
1195 uint32_t r;
1196
1197 #if ECB_STDFP
1198 memcpy (&r, &x, 4);
1199 #else
1200 /* slow emulation, works for anything but -0 */
1201 uint32_t m;
1202 int e;
1203
1204 if (x == 0e0f ) return 0x00000000U;
1205 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1206 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1207 if (x != x ) return 0x7fbfffffU;
1208
1209 m = frexpf (x, &e) * 0x1000000U;
1210
1211 r = m & 0x80000000U;
1212
1213 if (r)
1214 m = -m;
1215
1216 if (e <= -126)
1217 {
1218 m &= 0xffffffU;
1219 m >>= (-125 - e);
1220 e = -126;
1221 }
1222
1223 r |= (e + 126) << 23;
1224 r |= m & 0x7fffffU;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* converts an ieee single/binary32 to a float */
1231 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1232 ecb_function_ ecb_const float
1233 ecb_binary32_to_float (uint32_t x)
1234 {
1235 float r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 4);
1239 #else
1240 /* emulation, only works for normals and subnormals and +0 */
1241 int neg = x >> 31;
1242 int e = (x >> 23) & 0xffU;
1243
1244 x &= 0x7fffffU;
1245
1246 if (e)
1247 x |= 0x800000U;
1248 else
1249 e = 1;
1250
1251 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1252 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1253
1254 r = neg ? -r : r;
1255 #endif
1256
1257 return r;
1258 }
1259
1260 /* convert a double to ieee double/binary64 */
1261 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1262 ecb_function_ ecb_const uint64_t
1263 ecb_double_to_binary64 (double x)
1264 {
1265 uint64_t r;
1266
1267 #if ECB_STDFP
1268 memcpy (&r, &x, 8);
1269 #else
1270 /* slow emulation, works for anything but -0 */
1271 uint64_t m;
1272 int e;
1273
1274 if (x == 0e0 ) return 0x0000000000000000U;
1275 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1276 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1277 if (x != x ) return 0X7ff7ffffffffffffU;
1278
1279 m = frexp (x, &e) * 0x20000000000000U;
1280
1281 r = m & 0x8000000000000000;;
1282
1283 if (r)
1284 m = -m;
1285
1286 if (e <= -1022)
1287 {
1288 m &= 0x1fffffffffffffU;
1289 m >>= (-1021 - e);
1290 e = -1022;
1291 }
1292
1293 r |= ((uint64_t)(e + 1022)) << 52;
1294 r |= m & 0xfffffffffffffU;
1295 #endif
1296
1297 return r;
1298 }
1299
1300 /* converts an ieee double/binary64 to a double */
1301 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1302 ecb_function_ ecb_const double
1303 ecb_binary64_to_double (uint64_t x)
1304 {
1305 double r;
1306
1307 #if ECB_STDFP
1308 memcpy (&r, &x, 8);
1309 #else
1310 /* emulation, only works for normals and subnormals and +0 */
1311 int neg = x >> 63;
1312 int e = (x >> 52) & 0x7ffU;
1313
1314 x &= 0xfffffffffffffU;
1315
1316 if (e)
1317 x |= 0x10000000000000U;
1318 else
1319 e = 1;
1320
1321 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1322 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1323
1324 r = neg ? -r : r;
1325 #endif
1326
1327 return r;
1328 }
1329
1330#endif
1331
859#endif 1332#endif
860 1333
861/* ECB.H END */ 1334/* ECB.H END */
862 1335
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1336#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1337/* if your architecture doesn't need memory fences, e.g. because it is
1338 * single-cpu/core, or if you use libev in a project that doesn't use libev
1339 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1340 * libev, in which cases the memory fences become nops.
1341 * alternatively, you can remove this #error and link against libpthread,
1342 * which will then provide the memory fences.
1343 */
1344# error "memory fences not defined for your architecture, please report"
1345#endif
1346
864# undef ECB_MEMORY_FENCE 1347#ifndef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE 1348# define ECB_MEMORY_FENCE do { } while (0)
866# undef ECB_MEMORY_FENCE_RELEASE 1349# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1350# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
867#endif 1351#endif
868 1352
869#define expect_false(cond) ecb_expect_false (cond) 1353#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond) 1354#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline 1355#define noinline ecb_noinline
… …
1018{ 1502{
1019 write (STDERR_FILENO, msg, strlen (msg)); 1503 write (STDERR_FILENO, msg, strlen (msg));
1020} 1504}
1021#endif 1505#endif
1022 1506
1023static void (*syserr_cb)(const char *msg); 1507static void (*syserr_cb)(const char *msg) EV_THROW;
1024 1508
1025void ecb_cold 1509void ecb_cold
1026ev_set_syserr_cb (void (*cb)(const char *msg)) 1510ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1027{ 1511{
1028 syserr_cb = cb; 1512 syserr_cb = cb;
1029} 1513}
1030 1514
1031static void noinline ecb_cold 1515static void noinline ecb_cold
… …
1049 abort (); 1533 abort ();
1050 } 1534 }
1051} 1535}
1052 1536
1053static void * 1537static void *
1054ev_realloc_emul (void *ptr, long size) 1538ev_realloc_emul (void *ptr, long size) EV_THROW
1055{ 1539{
1056#if __GLIBC__
1057 return realloc (ptr, size);
1058#else
1059 /* some systems, notably openbsd and darwin, fail to properly 1540 /* some systems, notably openbsd and darwin, fail to properly
1060 * implement realloc (x, 0) (as required by both ansi c-89 and 1541 * implement realloc (x, 0) (as required by both ansi c-89 and
1061 * the single unix specification, so work around them here. 1542 * the single unix specification, so work around them here.
1543 * recently, also (at least) fedora and debian started breaking it,
1544 * despite documenting it otherwise.
1062 */ 1545 */
1063 1546
1064 if (size) 1547 if (size)
1065 return realloc (ptr, size); 1548 return realloc (ptr, size);
1066 1549
1067 free (ptr); 1550 free (ptr);
1068 return 0; 1551 return 0;
1069#endif
1070} 1552}
1071 1553
1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1554static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1073 1555
1074void ecb_cold 1556void ecb_cold
1075ev_set_allocator (void *(*cb)(void *ptr, long size)) 1557ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1076{ 1558{
1077 alloc = cb; 1559 alloc = cb;
1078} 1560}
1079 1561
1080inline_speed void * 1562inline_speed void *
… …
1168 #undef VAR 1650 #undef VAR
1169 }; 1651 };
1170 #include "ev_wrap.h" 1652 #include "ev_wrap.h"
1171 1653
1172 static struct ev_loop default_loop_struct; 1654 static struct ev_loop default_loop_struct;
1173 struct ev_loop *ev_default_loop_ptr; 1655 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1174 1656
1175#else 1657#else
1176 1658
1177 ev_tstamp ev_rt_now; 1659 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1178 #define VAR(name,decl) static decl; 1660 #define VAR(name,decl) static decl;
1179 #include "ev_vars.h" 1661 #include "ev_vars.h"
1180 #undef VAR 1662 #undef VAR
1181 1663
1182 static int ev_default_loop_ptr; 1664 static int ev_default_loop_ptr;
… …
1197 1679
1198/*****************************************************************************/ 1680/*****************************************************************************/
1199 1681
1200#ifndef EV_HAVE_EV_TIME 1682#ifndef EV_HAVE_EV_TIME
1201ev_tstamp 1683ev_tstamp
1202ev_time (void) 1684ev_time (void) EV_THROW
1203{ 1685{
1204#if EV_USE_REALTIME 1686#if EV_USE_REALTIME
1205 if (expect_true (have_realtime)) 1687 if (expect_true (have_realtime))
1206 { 1688 {
1207 struct timespec ts; 1689 struct timespec ts;
… …
1231 return ev_time (); 1713 return ev_time ();
1232} 1714}
1233 1715
1234#if EV_MULTIPLICITY 1716#if EV_MULTIPLICITY
1235ev_tstamp 1717ev_tstamp
1236ev_now (EV_P) 1718ev_now (EV_P) EV_THROW
1237{ 1719{
1238 return ev_rt_now; 1720 return ev_rt_now;
1239} 1721}
1240#endif 1722#endif
1241 1723
1242void 1724void
1243ev_sleep (ev_tstamp delay) 1725ev_sleep (ev_tstamp delay) EV_THROW
1244{ 1726{
1245 if (delay > 0.) 1727 if (delay > 0.)
1246 { 1728 {
1247#if EV_USE_NANOSLEEP 1729#if EV_USE_NANOSLEEP
1248 struct timespec ts; 1730 struct timespec ts;
1249 1731
1250 EV_TS_SET (ts, delay); 1732 EV_TS_SET (ts, delay);
1251 nanosleep (&ts, 0); 1733 nanosleep (&ts, 0);
1252#elif defined(_WIN32) 1734#elif defined _WIN32
1253 Sleep ((unsigned long)(delay * 1e3)); 1735 Sleep ((unsigned long)(delay * 1e3));
1254#else 1736#else
1255 struct timeval tv; 1737 struct timeval tv;
1256 1738
1257 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1739 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1276 1758
1277 do 1759 do
1278 ncur <<= 1; 1760 ncur <<= 1;
1279 while (cnt > ncur); 1761 while (cnt > ncur);
1280 1762
1281 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1763 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1282 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1764 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1283 { 1765 {
1284 ncur *= elem; 1766 ncur *= elem;
1285 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1767 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1286 ncur = ncur - sizeof (void *) * 4; 1768 ncur = ncur - sizeof (void *) * 4;
… …
1329pendingcb (EV_P_ ev_prepare *w, int revents) 1811pendingcb (EV_P_ ev_prepare *w, int revents)
1330{ 1812{
1331} 1813}
1332 1814
1333void noinline 1815void noinline
1334ev_feed_event (EV_P_ void *w, int revents) 1816ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1335{ 1817{
1336 W w_ = (W)w; 1818 W w_ = (W)w;
1337 int pri = ABSPRI (w_); 1819 int pri = ABSPRI (w_);
1338 1820
1339 if (expect_false (w_->pending)) 1821 if (expect_false (w_->pending))
… …
1343 w_->pending = ++pendingcnt [pri]; 1825 w_->pending = ++pendingcnt [pri];
1344 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1826 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1345 pendings [pri][w_->pending - 1].w = w_; 1827 pendings [pri][w_->pending - 1].w = w_;
1346 pendings [pri][w_->pending - 1].events = revents; 1828 pendings [pri][w_->pending - 1].events = revents;
1347 } 1829 }
1830
1831 pendingpri = NUMPRI - 1;
1348} 1832}
1349 1833
1350inline_speed void 1834inline_speed void
1351feed_reverse (EV_P_ W w) 1835feed_reverse (EV_P_ W w)
1352{ 1836{
… …
1398 if (expect_true (!anfd->reify)) 1882 if (expect_true (!anfd->reify))
1399 fd_event_nocheck (EV_A_ fd, revents); 1883 fd_event_nocheck (EV_A_ fd, revents);
1400} 1884}
1401 1885
1402void 1886void
1403ev_feed_fd_event (EV_P_ int fd, int revents) 1887ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1404{ 1888{
1405 if (fd >= 0 && fd < anfdmax) 1889 if (fd >= 0 && fd < anfdmax)
1406 fd_event_nocheck (EV_A_ fd, revents); 1890 fd_event_nocheck (EV_A_ fd, revents);
1407} 1891}
1408 1892
… …
1727static void noinline ecb_cold 2211static void noinline ecb_cold
1728evpipe_init (EV_P) 2212evpipe_init (EV_P)
1729{ 2213{
1730 if (!ev_is_active (&pipe_w)) 2214 if (!ev_is_active (&pipe_w))
1731 { 2215 {
2216 int fds [2];
2217
1732# if EV_USE_EVENTFD 2218# if EV_USE_EVENTFD
2219 fds [0] = -1;
1733 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2220 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1734 if (evfd < 0 && errno == EINVAL) 2221 if (fds [1] < 0 && errno == EINVAL)
1735 evfd = eventfd (0, 0); 2222 fds [1] = eventfd (0, 0);
1736 2223
1737 if (evfd >= 0) 2224 if (fds [1] < 0)
2225# endif
1738 { 2226 {
2227 while (pipe (fds))
2228 ev_syserr ("(libev) error creating signal/async pipe");
2229
2230 fd_intern (fds [0]);
2231 }
2232
1739 evpipe [0] = -1; 2233 evpipe [0] = fds [0];
1740 fd_intern (evfd); /* doing it twice doesn't hurt */ 2234
1741 ev_io_set (&pipe_w, evfd, EV_READ); 2235 if (evpipe [1] < 0)
2236 evpipe [1] = fds [1]; /* first call, set write fd */
2237 else
2238 {
2239 /* on subsequent calls, do not change evpipe [1] */
2240 /* so that evpipe_write can always rely on its value. */
2241 /* this branch does not do anything sensible on windows, */
2242 /* so must not be executed on windows */
2243
2244 dup2 (fds [1], evpipe [1]);
2245 close (fds [1]);
2246 }
2247
2248 fd_intern (evpipe [1]);
2249
2250 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2251 ev_io_start (EV_A_ &pipe_w);
2252 ev_unref (EV_A); /* watcher should not keep loop alive */
2253 }
2254}
2255
2256inline_speed void
2257evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2258{
2259 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2260
2261 if (expect_true (*flag))
2262 return;
2263
2264 *flag = 1;
2265 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2266
2267 pipe_write_skipped = 1;
2268
2269 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2270
2271 if (pipe_write_wanted)
2272 {
2273 int old_errno;
2274
2275 pipe_write_skipped = 0;
2276 ECB_MEMORY_FENCE_RELEASE;
2277
2278 old_errno = errno; /* save errno because write will clobber it */
2279
2280#if EV_USE_EVENTFD
2281 if (evpipe [0] < 0)
2282 {
2283 uint64_t counter = 1;
2284 write (evpipe [1], &counter, sizeof (uint64_t));
1742 } 2285 }
1743 else 2286 else
1744# endif 2287#endif
1745 { 2288 {
1746 while (pipe (evpipe)) 2289#ifdef _WIN32
1747 ev_syserr ("(libev) error creating signal/async pipe"); 2290 WSABUF buf;
1748 2291 DWORD sent;
1749 fd_intern (evpipe [0]); 2292 buf.buf = &buf;
1750 fd_intern (evpipe [1]); 2293 buf.len = 1;
1751 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2294 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1752 } 2295#else
1753
1754 ev_io_start (EV_A_ &pipe_w);
1755 ev_unref (EV_A); /* watcher should not keep loop alive */
1756 }
1757}
1758
1759inline_speed void
1760evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1761{
1762 if (expect_true (*flag))
1763 return;
1764
1765 *flag = 1;
1766
1767 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1768
1769 pipe_write_skipped = 1;
1770
1771 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1772
1773 if (pipe_write_wanted)
1774 {
1775 int old_errno;
1776
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1778
1779 old_errno = errno; /* save errno because write will clobber it */
1780
1781#if EV_USE_EVENTFD
1782 if (evfd >= 0)
1783 {
1784 uint64_t counter = 1;
1785 write (evfd, &counter, sizeof (uint64_t));
1786 }
1787 else
1788#endif
1789 {
1790 /* win32 people keep sending patches that change this write() to send() */
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1792 /* so when you think this write should be a send instead, please find out */
1793 /* where your send() is from - it's definitely not the microsoft send, and */
1794 /* tell me. thank you. */
1795 write (evpipe [1], &(evpipe [1]), 1); 2296 write (evpipe [1], &(evpipe [1]), 1);
2297#endif
1796 } 2298 }
1797 2299
1798 errno = old_errno; 2300 errno = old_errno;
1799 } 2301 }
1800} 2302}
… …
1807 int i; 2309 int i;
1808 2310
1809 if (revents & EV_READ) 2311 if (revents & EV_READ)
1810 { 2312 {
1811#if EV_USE_EVENTFD 2313#if EV_USE_EVENTFD
1812 if (evfd >= 0) 2314 if (evpipe [0] < 0)
1813 { 2315 {
1814 uint64_t counter; 2316 uint64_t counter;
1815 read (evfd, &counter, sizeof (uint64_t)); 2317 read (evpipe [1], &counter, sizeof (uint64_t));
1816 } 2318 }
1817 else 2319 else
1818#endif 2320#endif
1819 { 2321 {
1820 char dummy; 2322 char dummy[4];
1821 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2323#ifdef _WIN32
2324 WSABUF buf;
2325 DWORD recvd;
2326 DWORD flags = 0;
2327 buf.buf = dummy;
2328 buf.len = sizeof (dummy);
2329 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2330#else
1822 read (evpipe [0], &dummy, 1); 2331 read (evpipe [0], &dummy, sizeof (dummy));
2332#endif
1823 } 2333 }
1824 } 2334 }
1825 2335
1826 pipe_write_skipped = 0; 2336 pipe_write_skipped = 0;
2337
2338 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1827 2339
1828#if EV_SIGNAL_ENABLE 2340#if EV_SIGNAL_ENABLE
1829 if (sig_pending) 2341 if (sig_pending)
1830 { 2342 {
1831 sig_pending = 0; 2343 sig_pending = 0;
2344
2345 ECB_MEMORY_FENCE;
1832 2346
1833 for (i = EV_NSIG - 1; i--; ) 2347 for (i = EV_NSIG - 1; i--; )
1834 if (expect_false (signals [i].pending)) 2348 if (expect_false (signals [i].pending))
1835 ev_feed_signal_event (EV_A_ i + 1); 2349 ev_feed_signal_event (EV_A_ i + 1);
1836 } 2350 }
… …
1838 2352
1839#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1840 if (async_pending) 2354 if (async_pending)
1841 { 2355 {
1842 async_pending = 0; 2356 async_pending = 0;
2357
2358 ECB_MEMORY_FENCE;
1843 2359
1844 for (i = asynccnt; i--; ) 2360 for (i = asynccnt; i--; )
1845 if (asyncs [i]->sent) 2361 if (asyncs [i]->sent)
1846 { 2362 {
1847 asyncs [i]->sent = 0; 2363 asyncs [i]->sent = 0;
2364 ECB_MEMORY_FENCE_RELEASE;
1848 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2365 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1849 } 2366 }
1850 } 2367 }
1851#endif 2368#endif
1852} 2369}
1853 2370
1854/*****************************************************************************/ 2371/*****************************************************************************/
1855 2372
1856void 2373void
1857ev_feed_signal (int signum) 2374ev_feed_signal (int signum) EV_THROW
1858{ 2375{
1859#if EV_MULTIPLICITY 2376#if EV_MULTIPLICITY
2377 EV_P;
2378 ECB_MEMORY_FENCE_ACQUIRE;
1860 EV_P = signals [signum - 1].loop; 2379 EV_A = signals [signum - 1].loop;
1861 2380
1862 if (!EV_A) 2381 if (!EV_A)
1863 return; 2382 return;
1864#endif 2383#endif
1865 2384
1866 if (!ev_active (&pipe_w))
1867 return;
1868
1869 signals [signum - 1].pending = 1; 2385 signals [signum - 1].pending = 1;
1870 evpipe_write (EV_A_ &sig_pending); 2386 evpipe_write (EV_A_ &sig_pending);
1871} 2387}
1872 2388
1873static void 2389static void
… …
1879 2395
1880 ev_feed_signal (signum); 2396 ev_feed_signal (signum);
1881} 2397}
1882 2398
1883void noinline 2399void noinline
1884ev_feed_signal_event (EV_P_ int signum) 2400ev_feed_signal_event (EV_P_ int signum) EV_THROW
1885{ 2401{
1886 WL w; 2402 WL w;
1887 2403
1888 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2404 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1889 return; 2405 return;
1890 2406
1891 --signum; 2407 --signum;
1892 2408
1893#if EV_MULTIPLICITY 2409#if EV_MULTIPLICITY
… …
1897 if (expect_false (signals [signum].loop != EV_A)) 2413 if (expect_false (signals [signum].loop != EV_A))
1898 return; 2414 return;
1899#endif 2415#endif
1900 2416
1901 signals [signum].pending = 0; 2417 signals [signum].pending = 0;
2418 ECB_MEMORY_FENCE_RELEASE;
1902 2419
1903 for (w = signals [signum].head; w; w = w->next) 2420 for (w = signals [signum].head; w; w = w->next)
1904 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2421 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1905} 2422}
1906 2423
… …
2005#if EV_USE_SELECT 2522#if EV_USE_SELECT
2006# include "ev_select.c" 2523# include "ev_select.c"
2007#endif 2524#endif
2008 2525
2009int ecb_cold 2526int ecb_cold
2010ev_version_major (void) 2527ev_version_major (void) EV_THROW
2011{ 2528{
2012 return EV_VERSION_MAJOR; 2529 return EV_VERSION_MAJOR;
2013} 2530}
2014 2531
2015int ecb_cold 2532int ecb_cold
2016ev_version_minor (void) 2533ev_version_minor (void) EV_THROW
2017{ 2534{
2018 return EV_VERSION_MINOR; 2535 return EV_VERSION_MINOR;
2019} 2536}
2020 2537
2021/* return true if we are running with elevated privileges and should ignore env variables */ 2538/* return true if we are running with elevated privileges and should ignore env variables */
… …
2029 || getgid () != getegid (); 2546 || getgid () != getegid ();
2030#endif 2547#endif
2031} 2548}
2032 2549
2033unsigned int ecb_cold 2550unsigned int ecb_cold
2034ev_supported_backends (void) 2551ev_supported_backends (void) EV_THROW
2035{ 2552{
2036 unsigned int flags = 0; 2553 unsigned int flags = 0;
2037 2554
2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2555 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2039 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2556 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2043 2560
2044 return flags; 2561 return flags;
2045} 2562}
2046 2563
2047unsigned int ecb_cold 2564unsigned int ecb_cold
2048ev_recommended_backends (void) 2565ev_recommended_backends (void) EV_THROW
2049{ 2566{
2050 unsigned int flags = ev_supported_backends (); 2567 unsigned int flags = ev_supported_backends ();
2051 2568
2052#ifndef __NetBSD__ 2569#ifndef __NetBSD__
2053 /* kqueue is borked on everything but netbsd apparently */ 2570 /* kqueue is borked on everything but netbsd apparently */
… …
2065 2582
2066 return flags; 2583 return flags;
2067} 2584}
2068 2585
2069unsigned int ecb_cold 2586unsigned int ecb_cold
2070ev_embeddable_backends (void) 2587ev_embeddable_backends (void) EV_THROW
2071{ 2588{
2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2589 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2073 2590
2074 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2591 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2075 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2592 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2077 2594
2078 return flags; 2595 return flags;
2079} 2596}
2080 2597
2081unsigned int 2598unsigned int
2082ev_backend (EV_P) 2599ev_backend (EV_P) EV_THROW
2083{ 2600{
2084 return backend; 2601 return backend;
2085} 2602}
2086 2603
2087#if EV_FEATURE_API 2604#if EV_FEATURE_API
2088unsigned int 2605unsigned int
2089ev_iteration (EV_P) 2606ev_iteration (EV_P) EV_THROW
2090{ 2607{
2091 return loop_count; 2608 return loop_count;
2092} 2609}
2093 2610
2094unsigned int 2611unsigned int
2095ev_depth (EV_P) 2612ev_depth (EV_P) EV_THROW
2096{ 2613{
2097 return loop_depth; 2614 return loop_depth;
2098} 2615}
2099 2616
2100void 2617void
2101ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2618ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2102{ 2619{
2103 io_blocktime = interval; 2620 io_blocktime = interval;
2104} 2621}
2105 2622
2106void 2623void
2107ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2624ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2108{ 2625{
2109 timeout_blocktime = interval; 2626 timeout_blocktime = interval;
2110} 2627}
2111 2628
2112void 2629void
2113ev_set_userdata (EV_P_ void *data) 2630ev_set_userdata (EV_P_ void *data) EV_THROW
2114{ 2631{
2115 userdata = data; 2632 userdata = data;
2116} 2633}
2117 2634
2118void * 2635void *
2119ev_userdata (EV_P) 2636ev_userdata (EV_P) EV_THROW
2120{ 2637{
2121 return userdata; 2638 return userdata;
2122} 2639}
2123 2640
2124void 2641void
2125ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2642ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2126{ 2643{
2127 invoke_cb = invoke_pending_cb; 2644 invoke_cb = invoke_pending_cb;
2128} 2645}
2129 2646
2130void 2647void
2131ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2648ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2132{ 2649{
2133 release_cb = release; 2650 release_cb = release;
2134 acquire_cb = acquire; 2651 acquire_cb = acquire;
2135} 2652}
2136#endif 2653#endif
2137 2654
2138/* initialise a loop structure, must be zero-initialised */ 2655/* initialise a loop structure, must be zero-initialised */
2139static void noinline ecb_cold 2656static void noinline ecb_cold
2140loop_init (EV_P_ unsigned int flags) 2657loop_init (EV_P_ unsigned int flags) EV_THROW
2141{ 2658{
2142 if (!backend) 2659 if (!backend)
2143 { 2660 {
2144 origflags = flags; 2661 origflags = flags;
2145 2662
… …
2190#if EV_ASYNC_ENABLE 2707#if EV_ASYNC_ENABLE
2191 async_pending = 0; 2708 async_pending = 0;
2192#endif 2709#endif
2193 pipe_write_skipped = 0; 2710 pipe_write_skipped = 0;
2194 pipe_write_wanted = 0; 2711 pipe_write_wanted = 0;
2712 evpipe [0] = -1;
2713 evpipe [1] = -1;
2195#if EV_USE_INOTIFY 2714#if EV_USE_INOTIFY
2196 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2197#endif 2716#endif
2198#if EV_USE_SIGNALFD 2717#if EV_USE_SIGNALFD
2199 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2250 EV_INVOKE_PENDING; 2769 EV_INVOKE_PENDING;
2251 } 2770 }
2252#endif 2771#endif
2253 2772
2254#if EV_CHILD_ENABLE 2773#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev)) 2774 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2256 { 2775 {
2257 ev_ref (EV_A); /* child watcher */ 2776 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev); 2777 ev_signal_stop (EV_A_ &childev);
2259 } 2778 }
2260#endif 2779#endif
… …
2262 if (ev_is_active (&pipe_w)) 2781 if (ev_is_active (&pipe_w))
2263 { 2782 {
2264 /*ev_ref (EV_A);*/ 2783 /*ev_ref (EV_A);*/
2265 /*ev_io_stop (EV_A_ &pipe_w);*/ 2784 /*ev_io_stop (EV_A_ &pipe_w);*/
2266 2785
2267#if EV_USE_EVENTFD
2268 if (evfd >= 0)
2269 close (evfd);
2270#endif
2271
2272 if (evpipe [0] >= 0)
2273 {
2274 EV_WIN32_CLOSE_FD (evpipe [0]); 2786 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2275 EV_WIN32_CLOSE_FD (evpipe [1]); 2787 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2276 }
2277 } 2788 }
2278 2789
2279#if EV_USE_SIGNALFD 2790#if EV_USE_SIGNALFD
2280 if (ev_is_active (&sigfd_w)) 2791 if (ev_is_active (&sigfd_w))
2281 close (sigfd); 2792 close (sigfd);
… …
2367#endif 2878#endif
2368#if EV_USE_INOTIFY 2879#if EV_USE_INOTIFY
2369 infy_fork (EV_A); 2880 infy_fork (EV_A);
2370#endif 2881#endif
2371 2882
2883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2372 if (ev_is_active (&pipe_w)) 2884 if (ev_is_active (&pipe_w))
2373 { 2885 {
2374 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2886 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2375 2887
2376 ev_ref (EV_A); 2888 ev_ref (EV_A);
2377 ev_io_stop (EV_A_ &pipe_w); 2889 ev_io_stop (EV_A_ &pipe_w);
2378 2890
2379#if EV_USE_EVENTFD
2380 if (evfd >= 0)
2381 close (evfd);
2382#endif
2383
2384 if (evpipe [0] >= 0) 2891 if (evpipe [0] >= 0)
2385 {
2386 EV_WIN32_CLOSE_FD (evpipe [0]); 2892 EV_WIN32_CLOSE_FD (evpipe [0]);
2387 EV_WIN32_CLOSE_FD (evpipe [1]);
2388 }
2389 2893
2390#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2391 evpipe_init (EV_A); 2894 evpipe_init (EV_A);
2392 /* now iterate over everything, in case we missed something */ 2895 /* iterate over everything, in case we missed something before */
2393 pipecb (EV_A_ &pipe_w, EV_READ); 2896 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2394#endif
2395 } 2897 }
2898#endif
2396 2899
2397 postfork = 0; 2900 postfork = 0;
2398} 2901}
2399 2902
2400#if EV_MULTIPLICITY 2903#if EV_MULTIPLICITY
2401 2904
2402struct ev_loop * ecb_cold 2905struct ev_loop * ecb_cold
2403ev_loop_new (unsigned int flags) 2906ev_loop_new (unsigned int flags) EV_THROW
2404{ 2907{
2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2908 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2406 2909
2407 memset (EV_A, 0, sizeof (struct ev_loop)); 2910 memset (EV_A, 0, sizeof (struct ev_loop));
2408 loop_init (EV_A_ flags); 2911 loop_init (EV_A_ flags);
… …
2452} 2955}
2453#endif 2956#endif
2454 2957
2455#if EV_FEATURE_API 2958#if EV_FEATURE_API
2456void ecb_cold 2959void ecb_cold
2457ev_verify (EV_P) 2960ev_verify (EV_P) EV_THROW
2458{ 2961{
2459#if EV_VERIFY 2962#if EV_VERIFY
2460 int i; 2963 int i;
2461 WL w; 2964 WL w, w2;
2462 2965
2463 assert (activecnt >= -1); 2966 assert (activecnt >= -1);
2464 2967
2465 assert (fdchangemax >= fdchangecnt); 2968 assert (fdchangemax >= fdchangecnt);
2466 for (i = 0; i < fdchangecnt; ++i) 2969 for (i = 0; i < fdchangecnt; ++i)
2467 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2970 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2468 2971
2469 assert (anfdmax >= 0); 2972 assert (anfdmax >= 0);
2470 for (i = 0; i < anfdmax; ++i) 2973 for (i = 0; i < anfdmax; ++i)
2974 {
2975 int j = 0;
2976
2471 for (w = anfds [i].head; w; w = w->next) 2977 for (w = w2 = anfds [i].head; w; w = w->next)
2472 { 2978 {
2473 verify_watcher (EV_A_ (W)w); 2979 verify_watcher (EV_A_ (W)w);
2980
2981 if (j++ & 1)
2982 {
2983 assert (("libev: io watcher list contains a loop", w != w2));
2984 w2 = w2->next;
2985 }
2986
2474 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2987 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2475 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2988 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2476 } 2989 }
2990 }
2477 2991
2478 assert (timermax >= timercnt); 2992 assert (timermax >= timercnt);
2479 verify_heap (EV_A_ timers, timercnt); 2993 verify_heap (EV_A_ timers, timercnt);
2480 2994
2481#if EV_PERIODIC_ENABLE 2995#if EV_PERIODIC_ENABLE
… …
2531#if EV_MULTIPLICITY 3045#if EV_MULTIPLICITY
2532struct ev_loop * ecb_cold 3046struct ev_loop * ecb_cold
2533#else 3047#else
2534int 3048int
2535#endif 3049#endif
2536ev_default_loop (unsigned int flags) 3050ev_default_loop (unsigned int flags) EV_THROW
2537{ 3051{
2538 if (!ev_default_loop_ptr) 3052 if (!ev_default_loop_ptr)
2539 { 3053 {
2540#if EV_MULTIPLICITY 3054#if EV_MULTIPLICITY
2541 EV_P = ev_default_loop_ptr = &default_loop_struct; 3055 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2560 3074
2561 return ev_default_loop_ptr; 3075 return ev_default_loop_ptr;
2562} 3076}
2563 3077
2564void 3078void
2565ev_loop_fork (EV_P) 3079ev_loop_fork (EV_P) EV_THROW
2566{ 3080{
2567 postfork = 1; /* must be in line with ev_default_fork */ 3081 postfork = 1;
2568} 3082}
2569 3083
2570/*****************************************************************************/ 3084/*****************************************************************************/
2571 3085
2572void 3086void
… …
2574{ 3088{
2575 EV_CB_INVOKE ((W)w, revents); 3089 EV_CB_INVOKE ((W)w, revents);
2576} 3090}
2577 3091
2578unsigned int 3092unsigned int
2579ev_pending_count (EV_P) 3093ev_pending_count (EV_P) EV_THROW
2580{ 3094{
2581 int pri; 3095 int pri;
2582 unsigned int count = 0; 3096 unsigned int count = 0;
2583 3097
2584 for (pri = NUMPRI; pri--; ) 3098 for (pri = NUMPRI; pri--; )
… …
2588} 3102}
2589 3103
2590void noinline 3104void noinline
2591ev_invoke_pending (EV_P) 3105ev_invoke_pending (EV_P)
2592{ 3106{
2593 int pri; 3107 pendingpri = NUMPRI;
2594 3108
2595 for (pri = NUMPRI; pri--; ) 3109 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3110 {
3111 --pendingpri;
3112
2596 while (pendingcnt [pri]) 3113 while (pendingcnt [pendingpri])
2597 { 3114 {
2598 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3115 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2599 3116
2600 p->w->pending = 0; 3117 p->w->pending = 0;
2601 EV_CB_INVOKE (p->w, p->events); 3118 EV_CB_INVOKE (p->w, p->events);
2602 EV_FREQUENT_CHECK; 3119 EV_FREQUENT_CHECK;
2603 } 3120 }
3121 }
2604} 3122}
2605 3123
2606#if EV_IDLE_ENABLE 3124#if EV_IDLE_ENABLE
2607/* make idle watchers pending. this handles the "call-idle */ 3125/* make idle watchers pending. this handles the "call-idle */
2608/* only when higher priorities are idle" logic */ 3126/* only when higher priorities are idle" logic */
… …
2698{ 3216{
2699 EV_FREQUENT_CHECK; 3217 EV_FREQUENT_CHECK;
2700 3218
2701 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3219 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2702 { 3220 {
2703 int feed_count = 0;
2704
2705 do 3221 do
2706 { 3222 {
2707 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3223 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2708 3224
2709 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3225 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2843 3359
2844 mn_now = ev_rt_now; 3360 mn_now = ev_rt_now;
2845 } 3361 }
2846} 3362}
2847 3363
2848void 3364int
2849ev_run (EV_P_ int flags) 3365ev_run (EV_P_ int flags)
2850{ 3366{
2851#if EV_FEATURE_API 3367#if EV_FEATURE_API
2852 ++loop_depth; 3368 ++loop_depth;
2853#endif 3369#endif
… …
2966#endif 3482#endif
2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3483 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2968 backend_poll (EV_A_ waittime); 3484 backend_poll (EV_A_ waittime);
2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3485 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970 3486
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3487 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2972 3488
3489 ECB_MEMORY_FENCE_ACQUIRE;
2973 if (pipe_write_skipped) 3490 if (pipe_write_skipped)
2974 { 3491 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3492 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2976 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3493 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2977 } 3494 }
… …
3010 loop_done = EVBREAK_CANCEL; 3527 loop_done = EVBREAK_CANCEL;
3011 3528
3012#if EV_FEATURE_API 3529#if EV_FEATURE_API
3013 --loop_depth; 3530 --loop_depth;
3014#endif 3531#endif
3532
3533 return activecnt;
3015} 3534}
3016 3535
3017void 3536void
3018ev_break (EV_P_ int how) 3537ev_break (EV_P_ int how) EV_THROW
3019{ 3538{
3020 loop_done = how; 3539 loop_done = how;
3021} 3540}
3022 3541
3023void 3542void
3024ev_ref (EV_P) 3543ev_ref (EV_P) EV_THROW
3025{ 3544{
3026 ++activecnt; 3545 ++activecnt;
3027} 3546}
3028 3547
3029void 3548void
3030ev_unref (EV_P) 3549ev_unref (EV_P) EV_THROW
3031{ 3550{
3032 --activecnt; 3551 --activecnt;
3033} 3552}
3034 3553
3035void 3554void
3036ev_now_update (EV_P) 3555ev_now_update (EV_P) EV_THROW
3037{ 3556{
3038 time_update (EV_A_ 1e100); 3557 time_update (EV_A_ 1e100);
3039} 3558}
3040 3559
3041void 3560void
3042ev_suspend (EV_P) 3561ev_suspend (EV_P) EV_THROW
3043{ 3562{
3044 ev_now_update (EV_A); 3563 ev_now_update (EV_A);
3045} 3564}
3046 3565
3047void 3566void
3048ev_resume (EV_P) 3567ev_resume (EV_P) EV_THROW
3049{ 3568{
3050 ev_tstamp mn_prev = mn_now; 3569 ev_tstamp mn_prev = mn_now;
3051 3570
3052 ev_now_update (EV_A); 3571 ev_now_update (EV_A);
3053 timers_reschedule (EV_A_ mn_now - mn_prev); 3572 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3092 w->pending = 0; 3611 w->pending = 0;
3093 } 3612 }
3094} 3613}
3095 3614
3096int 3615int
3097ev_clear_pending (EV_P_ void *w) 3616ev_clear_pending (EV_P_ void *w) EV_THROW
3098{ 3617{
3099 W w_ = (W)w; 3618 W w_ = (W)w;
3100 int pending = w_->pending; 3619 int pending = w_->pending;
3101 3620
3102 if (expect_true (pending)) 3621 if (expect_true (pending))
… …
3135} 3654}
3136 3655
3137/*****************************************************************************/ 3656/*****************************************************************************/
3138 3657
3139void noinline 3658void noinline
3140ev_io_start (EV_P_ ev_io *w) 3659ev_io_start (EV_P_ ev_io *w) EV_THROW
3141{ 3660{
3142 int fd = w->fd; 3661 int fd = w->fd;
3143 3662
3144 if (expect_false (ev_is_active (w))) 3663 if (expect_false (ev_is_active (w)))
3145 return; 3664 return;
… …
3151 3670
3152 ev_start (EV_A_ (W)w, 1); 3671 ev_start (EV_A_ (W)w, 1);
3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3672 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3154 wlist_add (&anfds[fd].head, (WL)w); 3673 wlist_add (&anfds[fd].head, (WL)w);
3155 3674
3675 /* common bug, apparently */
3676 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3677
3156 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3678 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3157 w->events &= ~EV__IOFDSET; 3679 w->events &= ~EV__IOFDSET;
3158 3680
3159 EV_FREQUENT_CHECK; 3681 EV_FREQUENT_CHECK;
3160} 3682}
3161 3683
3162void noinline 3684void noinline
3163ev_io_stop (EV_P_ ev_io *w) 3685ev_io_stop (EV_P_ ev_io *w) EV_THROW
3164{ 3686{
3165 clear_pending (EV_A_ (W)w); 3687 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 3688 if (expect_false (!ev_is_active (w)))
3167 return; 3689 return;
3168 3690
… …
3177 3699
3178 EV_FREQUENT_CHECK; 3700 EV_FREQUENT_CHECK;
3179} 3701}
3180 3702
3181void noinline 3703void noinline
3182ev_timer_start (EV_P_ ev_timer *w) 3704ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3183{ 3705{
3184 if (expect_false (ev_is_active (w))) 3706 if (expect_false (ev_is_active (w)))
3185 return; 3707 return;
3186 3708
3187 ev_at (w) += mn_now; 3709 ev_at (w) += mn_now;
… …
3201 3723
3202 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3724 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3203} 3725}
3204 3726
3205void noinline 3727void noinline
3206ev_timer_stop (EV_P_ ev_timer *w) 3728ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3207{ 3729{
3208 clear_pending (EV_A_ (W)w); 3730 clear_pending (EV_A_ (W)w);
3209 if (expect_false (!ev_is_active (w))) 3731 if (expect_false (!ev_is_active (w)))
3210 return; 3732 return;
3211 3733
… …
3231 3753
3232 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3233} 3755}
3234 3756
3235void noinline 3757void noinline
3236ev_timer_again (EV_P_ ev_timer *w) 3758ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3237{ 3759{
3238 EV_FREQUENT_CHECK; 3760 EV_FREQUENT_CHECK;
3761
3762 clear_pending (EV_A_ (W)w);
3239 3763
3240 if (ev_is_active (w)) 3764 if (ev_is_active (w))
3241 { 3765 {
3242 if (w->repeat) 3766 if (w->repeat)
3243 { 3767 {
… …
3256 3780
3257 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
3258} 3782}
3259 3783
3260ev_tstamp 3784ev_tstamp
3261ev_timer_remaining (EV_P_ ev_timer *w) 3785ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3262{ 3786{
3263 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3787 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3264} 3788}
3265 3789
3266#if EV_PERIODIC_ENABLE 3790#if EV_PERIODIC_ENABLE
3267void noinline 3791void noinline
3268ev_periodic_start (EV_P_ ev_periodic *w) 3792ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3269{ 3793{
3270 if (expect_false (ev_is_active (w))) 3794 if (expect_false (ev_is_active (w)))
3271 return; 3795 return;
3272 3796
3273 if (w->reschedule_cb) 3797 if (w->reschedule_cb)
… …
3293 3817
3294 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3818 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3295} 3819}
3296 3820
3297void noinline 3821void noinline
3298ev_periodic_stop (EV_P_ ev_periodic *w) 3822ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3299{ 3823{
3300 clear_pending (EV_A_ (W)w); 3824 clear_pending (EV_A_ (W)w);
3301 if (expect_false (!ev_is_active (w))) 3825 if (expect_false (!ev_is_active (w)))
3302 return; 3826 return;
3303 3827
… …
3321 3845
3322 EV_FREQUENT_CHECK; 3846 EV_FREQUENT_CHECK;
3323} 3847}
3324 3848
3325void noinline 3849void noinline
3326ev_periodic_again (EV_P_ ev_periodic *w) 3850ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3327{ 3851{
3328 /* TODO: use adjustheap and recalculation */ 3852 /* TODO: use adjustheap and recalculation */
3329 ev_periodic_stop (EV_A_ w); 3853 ev_periodic_stop (EV_A_ w);
3330 ev_periodic_start (EV_A_ w); 3854 ev_periodic_start (EV_A_ w);
3331} 3855}
… …
3336#endif 3860#endif
3337 3861
3338#if EV_SIGNAL_ENABLE 3862#if EV_SIGNAL_ENABLE
3339 3863
3340void noinline 3864void noinline
3341ev_signal_start (EV_P_ ev_signal *w) 3865ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3342{ 3866{
3343 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
3344 return; 3868 return;
3345 3869
3346 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3870 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3348#if EV_MULTIPLICITY 3872#if EV_MULTIPLICITY
3349 assert (("libev: a signal must not be attached to two different loops", 3873 assert (("libev: a signal must not be attached to two different loops",
3350 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3874 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3351 3875
3352 signals [w->signum - 1].loop = EV_A; 3876 signals [w->signum - 1].loop = EV_A;
3877 ECB_MEMORY_FENCE_RELEASE;
3353#endif 3878#endif
3354 3879
3355 EV_FREQUENT_CHECK; 3880 EV_FREQUENT_CHECK;
3356 3881
3357#if EV_USE_SIGNALFD 3882#if EV_USE_SIGNALFD
… …
3417 3942
3418 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3419} 3944}
3420 3945
3421void noinline 3946void noinline
3422ev_signal_stop (EV_P_ ev_signal *w) 3947ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3423{ 3948{
3424 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3426 return; 3951 return;
3427 3952
… …
3458#endif 3983#endif
3459 3984
3460#if EV_CHILD_ENABLE 3985#if EV_CHILD_ENABLE
3461 3986
3462void 3987void
3463ev_child_start (EV_P_ ev_child *w) 3988ev_child_start (EV_P_ ev_child *w) EV_THROW
3464{ 3989{
3465#if EV_MULTIPLICITY 3990#if EV_MULTIPLICITY
3466 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3991 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3467#endif 3992#endif
3468 if (expect_false (ev_is_active (w))) 3993 if (expect_false (ev_is_active (w)))
… …
3475 4000
3476 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
3477} 4002}
3478 4003
3479void 4004void
3480ev_child_stop (EV_P_ ev_child *w) 4005ev_child_stop (EV_P_ ev_child *w) EV_THROW
3481{ 4006{
3482 clear_pending (EV_A_ (W)w); 4007 clear_pending (EV_A_ (W)w);
3483 if (expect_false (!ev_is_active (w))) 4008 if (expect_false (!ev_is_active (w)))
3484 return; 4009 return;
3485 4010
… …
3512# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4037# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3513 4038
3514static void noinline 4039static void noinline
3515infy_add (EV_P_ ev_stat *w) 4040infy_add (EV_P_ ev_stat *w)
3516{ 4041{
3517 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4042 w->wd = inotify_add_watch (fs_fd, w->path,
4043 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4044 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4045 | IN_DONT_FOLLOW | IN_MASK_ADD);
3518 4046
3519 if (w->wd >= 0) 4047 if (w->wd >= 0)
3520 { 4048 {
3521 struct statfs sfs; 4049 struct statfs sfs;
3522 4050
… …
3526 4054
3527 if (!fs_2625) 4055 if (!fs_2625)
3528 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4056 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3529 else if (!statfs (w->path, &sfs) 4057 else if (!statfs (w->path, &sfs)
3530 && (sfs.f_type == 0x1373 /* devfs */ 4058 && (sfs.f_type == 0x1373 /* devfs */
4059 || sfs.f_type == 0x4006 /* fat */
4060 || sfs.f_type == 0x4d44 /* msdos */
3531 || sfs.f_type == 0xEF53 /* ext2/3 */ 4061 || sfs.f_type == 0xEF53 /* ext2/3 */
4062 || sfs.f_type == 0x72b6 /* jffs2 */
4063 || sfs.f_type == 0x858458f6 /* ramfs */
4064 || sfs.f_type == 0x5346544e /* ntfs */
3532 || sfs.f_type == 0x3153464a /* jfs */ 4065 || sfs.f_type == 0x3153464a /* jfs */
4066 || sfs.f_type == 0x9123683e /* btrfs */
3533 || sfs.f_type == 0x52654973 /* reiser3 */ 4067 || sfs.f_type == 0x52654973 /* reiser3 */
3534 || sfs.f_type == 0x01021994 /* tempfs */ 4068 || sfs.f_type == 0x01021994 /* tmpfs */
3535 || sfs.f_type == 0x58465342 /* xfs */)) 4069 || sfs.f_type == 0x58465342 /* xfs */))
3536 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4070 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3537 else 4071 else
3538 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4072 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3539 } 4073 }
… …
3652} 4186}
3653 4187
3654inline_size int 4188inline_size int
3655infy_newfd (void) 4189infy_newfd (void)
3656{ 4190{
3657#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4191#if defined IN_CLOEXEC && defined IN_NONBLOCK
3658 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4192 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3659 if (fd >= 0) 4193 if (fd >= 0)
3660 return fd; 4194 return fd;
3661#endif 4195#endif
3662 return inotify_init (); 4196 return inotify_init ();
… …
3737#else 4271#else
3738# define EV_LSTAT(p,b) lstat (p, b) 4272# define EV_LSTAT(p,b) lstat (p, b)
3739#endif 4273#endif
3740 4274
3741void 4275void
3742ev_stat_stat (EV_P_ ev_stat *w) 4276ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3743{ 4277{
3744 if (lstat (w->path, &w->attr) < 0) 4278 if (lstat (w->path, &w->attr) < 0)
3745 w->attr.st_nlink = 0; 4279 w->attr.st_nlink = 0;
3746 else if (!w->attr.st_nlink) 4280 else if (!w->attr.st_nlink)
3747 w->attr.st_nlink = 1; 4281 w->attr.st_nlink = 1;
… …
3786 ev_feed_event (EV_A_ w, EV_STAT); 4320 ev_feed_event (EV_A_ w, EV_STAT);
3787 } 4321 }
3788} 4322}
3789 4323
3790void 4324void
3791ev_stat_start (EV_P_ ev_stat *w) 4325ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3792{ 4326{
3793 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3794 return; 4328 return;
3795 4329
3796 ev_stat_stat (EV_A_ w); 4330 ev_stat_stat (EV_A_ w);
… …
3817 4351
3818 EV_FREQUENT_CHECK; 4352 EV_FREQUENT_CHECK;
3819} 4353}
3820 4354
3821void 4355void
3822ev_stat_stop (EV_P_ ev_stat *w) 4356ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3823{ 4357{
3824 clear_pending (EV_A_ (W)w); 4358 clear_pending (EV_A_ (W)w);
3825 if (expect_false (!ev_is_active (w))) 4359 if (expect_false (!ev_is_active (w)))
3826 return; 4360 return;
3827 4361
… …
3843} 4377}
3844#endif 4378#endif
3845 4379
3846#if EV_IDLE_ENABLE 4380#if EV_IDLE_ENABLE
3847void 4381void
3848ev_idle_start (EV_P_ ev_idle *w) 4382ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3849{ 4383{
3850 if (expect_false (ev_is_active (w))) 4384 if (expect_false (ev_is_active (w)))
3851 return; 4385 return;
3852 4386
3853 pri_adjust (EV_A_ (W)w); 4387 pri_adjust (EV_A_ (W)w);
… …
3866 4400
3867 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3868} 4402}
3869 4403
3870void 4404void
3871ev_idle_stop (EV_P_ ev_idle *w) 4405ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3872{ 4406{
3873 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4408 if (expect_false (!ev_is_active (w)))
3875 return; 4409 return;
3876 4410
… …
3890} 4424}
3891#endif 4425#endif
3892 4426
3893#if EV_PREPARE_ENABLE 4427#if EV_PREPARE_ENABLE
3894void 4428void
3895ev_prepare_start (EV_P_ ev_prepare *w) 4429ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3896{ 4430{
3897 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
3898 return; 4432 return;
3899 4433
3900 EV_FREQUENT_CHECK; 4434 EV_FREQUENT_CHECK;
… …
3905 4439
3906 EV_FREQUENT_CHECK; 4440 EV_FREQUENT_CHECK;
3907} 4441}
3908 4442
3909void 4443void
3910ev_prepare_stop (EV_P_ ev_prepare *w) 4444ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3911{ 4445{
3912 clear_pending (EV_A_ (W)w); 4446 clear_pending (EV_A_ (W)w);
3913 if (expect_false (!ev_is_active (w))) 4447 if (expect_false (!ev_is_active (w)))
3914 return; 4448 return;
3915 4449
… …
3928} 4462}
3929#endif 4463#endif
3930 4464
3931#if EV_CHECK_ENABLE 4465#if EV_CHECK_ENABLE
3932void 4466void
3933ev_check_start (EV_P_ ev_check *w) 4467ev_check_start (EV_P_ ev_check *w) EV_THROW
3934{ 4468{
3935 if (expect_false (ev_is_active (w))) 4469 if (expect_false (ev_is_active (w)))
3936 return; 4470 return;
3937 4471
3938 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
… …
3943 4477
3944 EV_FREQUENT_CHECK; 4478 EV_FREQUENT_CHECK;
3945} 4479}
3946 4480
3947void 4481void
3948ev_check_stop (EV_P_ ev_check *w) 4482ev_check_stop (EV_P_ ev_check *w) EV_THROW
3949{ 4483{
3950 clear_pending (EV_A_ (W)w); 4484 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4485 if (expect_false (!ev_is_active (w)))
3952 return; 4486 return;
3953 4487
… …
3966} 4500}
3967#endif 4501#endif
3968 4502
3969#if EV_EMBED_ENABLE 4503#if EV_EMBED_ENABLE
3970void noinline 4504void noinline
3971ev_embed_sweep (EV_P_ ev_embed *w) 4505ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3972{ 4506{
3973 ev_run (w->other, EVRUN_NOWAIT); 4507 ev_run (w->other, EVRUN_NOWAIT);
3974} 4508}
3975 4509
3976static void 4510static void
… …
4024 ev_idle_stop (EV_A_ idle); 4558 ev_idle_stop (EV_A_ idle);
4025} 4559}
4026#endif 4560#endif
4027 4561
4028void 4562void
4029ev_embed_start (EV_P_ ev_embed *w) 4563ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4030{ 4564{
4031 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
4032 return; 4566 return;
4033 4567
4034 { 4568 {
… …
4055 4589
4056 EV_FREQUENT_CHECK; 4590 EV_FREQUENT_CHECK;
4057} 4591}
4058 4592
4059void 4593void
4060ev_embed_stop (EV_P_ ev_embed *w) 4594ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4061{ 4595{
4062 clear_pending (EV_A_ (W)w); 4596 clear_pending (EV_A_ (W)w);
4063 if (expect_false (!ev_is_active (w))) 4597 if (expect_false (!ev_is_active (w)))
4064 return; 4598 return;
4065 4599
… …
4075} 4609}
4076#endif 4610#endif
4077 4611
4078#if EV_FORK_ENABLE 4612#if EV_FORK_ENABLE
4079void 4613void
4080ev_fork_start (EV_P_ ev_fork *w) 4614ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4081{ 4615{
4082 if (expect_false (ev_is_active (w))) 4616 if (expect_false (ev_is_active (w)))
4083 return; 4617 return;
4084 4618
4085 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
… …
4090 4624
4091 EV_FREQUENT_CHECK; 4625 EV_FREQUENT_CHECK;
4092} 4626}
4093 4627
4094void 4628void
4095ev_fork_stop (EV_P_ ev_fork *w) 4629ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4096{ 4630{
4097 clear_pending (EV_A_ (W)w); 4631 clear_pending (EV_A_ (W)w);
4098 if (expect_false (!ev_is_active (w))) 4632 if (expect_false (!ev_is_active (w)))
4099 return; 4633 return;
4100 4634
… …
4113} 4647}
4114#endif 4648#endif
4115 4649
4116#if EV_CLEANUP_ENABLE 4650#if EV_CLEANUP_ENABLE
4117void 4651void
4118ev_cleanup_start (EV_P_ ev_cleanup *w) 4652ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4119{ 4653{
4120 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4121 return; 4655 return;
4122 4656
4123 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4130 ev_unref (EV_A); 4664 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK; 4665 EV_FREQUENT_CHECK;
4132} 4666}
4133 4667
4134void 4668void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w) 4669ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4136{ 4670{
4137 clear_pending (EV_A_ (W)w); 4671 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w))) 4672 if (expect_false (!ev_is_active (w)))
4139 return; 4673 return;
4140 4674
… …
4154} 4688}
4155#endif 4689#endif
4156 4690
4157#if EV_ASYNC_ENABLE 4691#if EV_ASYNC_ENABLE
4158void 4692void
4159ev_async_start (EV_P_ ev_async *w) 4693ev_async_start (EV_P_ ev_async *w) EV_THROW
4160{ 4694{
4161 if (expect_false (ev_is_active (w))) 4695 if (expect_false (ev_is_active (w)))
4162 return; 4696 return;
4163 4697
4164 w->sent = 0; 4698 w->sent = 0;
… …
4173 4707
4174 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
4175} 4709}
4176 4710
4177void 4711void
4178ev_async_stop (EV_P_ ev_async *w) 4712ev_async_stop (EV_P_ ev_async *w) EV_THROW
4179{ 4713{
4180 clear_pending (EV_A_ (W)w); 4714 clear_pending (EV_A_ (W)w);
4181 if (expect_false (!ev_is_active (w))) 4715 if (expect_false (!ev_is_active (w)))
4182 return; 4716 return;
4183 4717
… …
4194 4728
4195 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
4196} 4730}
4197 4731
4198void 4732void
4199ev_async_send (EV_P_ ev_async *w) 4733ev_async_send (EV_P_ ev_async *w) EV_THROW
4200{ 4734{
4201 w->sent = 1; 4735 w->sent = 1;
4202 evpipe_write (EV_A_ &async_pending); 4736 evpipe_write (EV_A_ &async_pending);
4203} 4737}
4204#endif 4738#endif
… …
4241 4775
4242 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4776 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4243} 4777}
4244 4778
4245void 4779void
4246ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4780ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4247{ 4781{
4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4782 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4249 4783
4250 if (expect_false (!once)) 4784 if (expect_false (!once))
4251 { 4785 {
… …
4273 4807
4274/*****************************************************************************/ 4808/*****************************************************************************/
4275 4809
4276#if EV_WALK_ENABLE 4810#if EV_WALK_ENABLE
4277void ecb_cold 4811void ecb_cold
4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4812ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4279{ 4813{
4280 int i, j; 4814 int i, j;
4281 ev_watcher_list *wl, *wn; 4815 ev_watcher_list *wl, *wn;
4282 4816
4283 if (types & (EV_IO | EV_EMBED)) 4817 if (types & (EV_IO | EV_EMBED))
… …
4389 4923
4390#if EV_MULTIPLICITY 4924#if EV_MULTIPLICITY
4391 #include "ev_wrap.h" 4925 #include "ev_wrap.h"
4392#endif 4926#endif
4393 4927
4394EV_CPP(})
4395

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