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Comparing libev/ev.c (file contents):
Revision 1.399 by root, Mon Sep 26 12:32:21 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
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
198
188#ifndef _WIN32 199#ifndef _WIN32
189# include <sys/time.h> 200# include <sys/time.h>
190# include <sys/wait.h> 201# include <sys/wait.h>
191# include <unistd.h> 202# include <unistd.h>
192#else 203#else
193# include <io.h> 204# include <io.h>
194# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
195# include <windows.h> 207# include <windows.h>
196# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
197# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
198# endif 210# endif
199# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
208#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
209 221
210/* 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 */
211 223
212/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG) 225#if defined EV_NSIG
214/* use what's provided */ 226/* use what's provided */
215#elif defined (NSIG) 227#elif defined NSIG
216# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
217#elif defined(_NSIG) 229#elif defined _NSIG
218# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX) 231#elif defined SIGMAX
220# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX) 233#elif defined SIG_MAX
222# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
224# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG) 237#elif defined MAXSIG
226# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG) 239#elif defined MAX_SIG
228# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig) 243#elif defined _sys_nsig
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else 245#else
234# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
235/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */
237# define EV_NSIG 65
238#endif 247#endif
239 248
240#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
241# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
242#endif 251#endif
243 252
244#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
245# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
246# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
247# else 256# else
248# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
249# endif 258# endif
250#endif 259#endif
251 260
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
252#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
255# else 273# else
256# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
257# endif 275# endif
258#endif 276#endif
… …
345 363
346#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
347# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
348#endif 366#endif
349 367
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
350/* 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, */
351/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
352#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
353# include <syscall.h> 387# include <sys/syscall.h>
354# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
355# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
358# else 392# else
… …
361# endif 395# endif
362#endif 396#endif
363 397
364/* 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 */
365 399
366#ifdef _AIX
367/* AIX has a completely broken poll.h header */
368# undef EV_USE_POLL
369# define EV_USE_POLL 0
370#endif
371
372#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
373# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
374# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
375#endif 403#endif
376 404
… …
384# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
385#endif 413#endif
386 414
387#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
388/* 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 */
389# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
390# include <sys/select.h> 418# include <sys/select.h>
391# endif 419# endif
392#endif 420#endif
393 421
394#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
397/* 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 */
398# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
399# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
400# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
401# endif 429# endif
402#endif
403
404#if EV_SELECT_IS_WINSOCKET
405# include <winsock.h>
406#endif 430#endif
407 431
408#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
409/* 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 */
410# include <stdint.h> 434# include <stdint.h>
… …
467/* 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 */
468/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
469/* 493/*
470 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
471 * 495 *
472 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
473 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
474 * All rights reserved. 498 * All rights reserved.
475 * 499 *
476 * 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-
477 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
… …
491 * 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;
492 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494 * 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
495 * 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.
496 */ 531 */
497 532
498#ifndef ECB_H 533#ifndef ECB_H
499#define ECB_H 534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
500 538
501#ifdef _WIN32 539#ifdef _WIN32
502 typedef signed char int8_t; 540 typedef signed char int8_t;
503 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
504 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
510 typedef unsigned long long uint64_t; 548 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */ 549 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t; 550 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t; 551 typedef unsigned __int64 uint64_t;
514 #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
515#else 562#else
516 #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
517#endif 578#endif
518 579
519/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so. 583 * or so.
523 * 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
524 * 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.
525 */ 586 */
526#ifndef ECB_GCC_VERSION
527 #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__
528 #define ECB_GCC_VERSION(major,minor) 0 588 #define ECB_GCC_VERSION(major,minor) 0
529 #else 589#else
530 #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)))
531 #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
532#endif 629#endif
533 630
534/*****************************************************************************/ 631/*****************************************************************************/
535 632
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 633/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* 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 */
538 635
539#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
540 #define ECB_MEMORY_FENCE do { } while (0) 641 #define ECB_MEMORY_FENCE do { } while (0)
541#endif 642#endif
542 643
543#ifndef ECB_MEMORY_FENCE 644#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) 645 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545 #if __i386__ 646 #if __i386 || __i386__
546 #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")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 648 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 649 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
549 #elif __amd64 650 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 652 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 653 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 654 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 656 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 657 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557 #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")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 659 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 660 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560 #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")
561 #endif 687 #endif
562 #endif 688 #endif
563#endif 689#endif
564 690
565#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
566 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 704 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
567 #define ECB_MEMORY_FENCE __sync_synchronize () 705 #define ECB_MEMORY_FENCE __sync_synchronize ()
568 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 706 #elif _MSC_VER >= 1500 /* VC++ 2008 */
569 /*#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()
570 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 712 #elif _MSC_VER >= 1400 /* VC++ 2005 */
571 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 713 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
572 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 714 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
573 #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 */
574 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 716 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
575 #elif defined(_WIN32) 717 #elif defined _WIN32
576 #include <WinNT.h> 718 #include <WinNT.h>
577 #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)
578 #endif 744 #endif
579#endif 745#endif
580 746
581#ifndef ECB_MEMORY_FENCE 747#ifndef ECB_MEMORY_FENCE
582 #if !ECB_AVOID_PTHREADS 748 #if !ECB_AVOID_PTHREADS
… …
594 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 760 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
595 #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)
596 #endif 762 #endif
597#endif 763#endif
598 764
599#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 765#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
600 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 766 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
601#endif 767#endif
602 768
603#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 769#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
604 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 770 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
605#endif 771#endif
606 772
607/*****************************************************************************/ 773/*****************************************************************************/
608 774
609#define ECB_C99 (__STDC_VERSION__ >= 199901L) 775#if ECB_CPP
610
611#if __cplusplus
612 #define ecb_inline static inline 776 #define ecb_inline static inline
613#elif ECB_GCC_VERSION(2,5) 777#elif ECB_GCC_VERSION(2,5)
614 #define ecb_inline static __inline__ 778 #define ecb_inline static __inline__
615#elif ECB_C99 779#elif ECB_C99
616 #define ecb_inline static inline 780 #define ecb_inline static inline
… …
633#define ECB_STRINGIFY_(a) # a 797#define ECB_STRINGIFY_(a) # a
634#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 798#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
635 799
636#define ecb_function_ ecb_inline 800#define ecb_function_ ecb_inline
637 801
638#if ECB_GCC_VERSION(3,1) 802#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
639 #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)
640 #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)
641 #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)
642 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 825 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
643#else 826#else
644 #define ecb_attribute(attrlist)
645 #define ecb_is_constant(expr) 0
646 #define ecb_expect(expr,value) (expr)
647 #define ecb_prefetch(addr,rw,locality) 827 #define ecb_prefetch(addr,rw,locality)
648#endif 828#endif
649 829
650/* no emulation for ecb_decltype */ 830/* no emulation for ecb_decltype */
651#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; };
652 #define ecb_decltype(x) __decltype(x) 834 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
653#elif ECB_GCC_VERSION(3,0) 835#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
654 #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__))
655#endif 843#endif
656 844
657#define ecb_noinline ecb_attribute ((__noinline__)) 845#define ecb_noinline ecb_attribute ((__noinline__))
658#define ecb_noreturn ecb_attribute ((__noreturn__))
659#define ecb_unused ecb_attribute ((__unused__)) 846#define ecb_unused ecb_attribute ((__unused__))
660#define ecb_const ecb_attribute ((__const__)) 847#define ecb_const ecb_attribute ((__const__))
661#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
662 857
663#if ECB_GCC_VERSION(4,3) 858#if ECB_GCC_VERSION(4,3)
664 #define ecb_artificial ecb_attribute ((__artificial__)) 859 #define ecb_artificial ecb_attribute ((__artificial__))
665 #define ecb_hot ecb_attribute ((__hot__)) 860 #define ecb_hot ecb_attribute ((__hot__))
666 #define ecb_cold ecb_attribute ((__cold__)) 861 #define ecb_cold ecb_attribute ((__cold__))
… …
678/* for compatibility to the rest of the world */ 873/* for compatibility to the rest of the world */
679#define ecb_likely(expr) ecb_expect_true (expr) 874#define ecb_likely(expr) ecb_expect_true (expr)
680#define ecb_unlikely(expr) ecb_expect_false (expr) 875#define ecb_unlikely(expr) ecb_expect_false (expr)
681 876
682/* count trailing zero bits and count # of one bits */ 877/* count trailing zero bits and count # of one bits */
683#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))
684 /* 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 */
685 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 883 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
686 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 884 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
687 #define ecb_ctz32(x) __builtin_ctz (x) 885 #define ecb_ctz32(x) __builtin_ctz (x)
688 #define ecb_ctz64(x) __builtin_ctzll (x) 886 #define ecb_ctz64(x) __builtin_ctzll (x)
689 #define ecb_popcount32(x) __builtin_popcount (x) 887 #define ecb_popcount32(x) __builtin_popcount (x)
690 /* no popcountll */ 888 /* no popcountll */
691#else 889#else
692 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 890 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
693 ecb_function_ int 891 ecb_function_ ecb_const int
694 ecb_ctz32 (uint32_t x) 892 ecb_ctz32 (uint32_t x)
695 { 893 {
696 int r = 0; 894 int r = 0;
697 895
698 x &= ~x + 1; /* this isolates the lowest bit */ 896 x &= ~x + 1; /* this isolates the lowest bit */
… …
712#endif 910#endif
713 911
714 return r; 912 return r;
715 } 913 }
716 914
717 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 915 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
718 ecb_function_ int 916 ecb_function_ ecb_const int
719 ecb_ctz64 (uint64_t x) 917 ecb_ctz64 (uint64_t x)
720 { 918 {
721 int shift = x & 0xffffffffU ? 0 : 32; 919 int shift = x & 0xffffffffU ? 0 : 32;
722 return ecb_ctz32 (x >> shift) + shift; 920 return ecb_ctz32 (x >> shift) + shift;
723 } 921 }
724 922
725 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 923 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
726 ecb_function_ int 924 ecb_function_ ecb_const int
727 ecb_popcount32 (uint32_t x) 925 ecb_popcount32 (uint32_t x)
728 { 926 {
729 x -= (x >> 1) & 0x55555555; 927 x -= (x >> 1) & 0x55555555;
730 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 928 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
731 x = ((x >> 4) + x) & 0x0f0f0f0f; 929 x = ((x >> 4) + x) & 0x0f0f0f0f;
732 x *= 0x01010101; 930 x *= 0x01010101;
733 931
734 return x >> 24; 932 return x >> 24;
735 } 933 }
736 934
737 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 935 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
738 ecb_function_ int ecb_ld32 (uint32_t x) 936 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
739 { 937 {
740 int r = 0; 938 int r = 0;
741 939
742 if (x >> 16) { x >>= 16; r += 16; } 940 if (x >> 16) { x >>= 16; r += 16; }
743 if (x >> 8) { x >>= 8; r += 8; } 941 if (x >> 8) { x >>= 8; r += 8; }
… …
746 if (x >> 1) { r += 1; } 944 if (x >> 1) { r += 1; }
747 945
748 return r; 946 return r;
749 } 947 }
750 948
751 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
752 ecb_function_ int ecb_ld64 (uint64_t x) 950 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
753 { 951 {
754 int r = 0; 952 int r = 0;
755 953
756 if (x >> 32) { x >>= 32; r += 32; } 954 if (x >> 32) { x >>= 32; r += 32; }
757 955
758 return r + ecb_ld32 (x); 956 return r + ecb_ld32 (x);
759 } 957 }
760#endif 958#endif
761 959
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
762/* popcount64 is only available on 64 bit cpus as gcc builtin */ 995/* popcount64 is only available on 64 bit cpus as gcc builtin */
763/* so for this version we are lazy */ 996/* so for this version we are lazy */
764ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 997ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
765ecb_function_ int 998ecb_function_ ecb_const int
766ecb_popcount64 (uint64_t x) 999ecb_popcount64 (uint64_t x)
767{ 1000{
768 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1001 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
769} 1002}
770 1003
771ecb_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);
772ecb_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);
773ecb_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);
774ecb_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);
775ecb_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);
776ecb_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);
777ecb_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);
778ecb_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);
779 1012
780ecb_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); }
781ecb_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); }
782ecb_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); }
783ecb_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); }
784ecb_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); }
785ecb_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); }
786ecb_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); }
787ecb_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); }
788 1021
789#if ECB_GCC_VERSION(4,3) 1022#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
790 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1023 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
791 #define ecb_bswap32(x) __builtin_bswap32 (x) 1024 #define ecb_bswap32(x) __builtin_bswap32 (x)
792 #define ecb_bswap64(x) __builtin_bswap64 (x) 1025 #define ecb_bswap64(x) __builtin_bswap64 (x)
793#else 1026#else
794 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1027 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
795 ecb_function_ uint16_t 1028 ecb_function_ ecb_const uint16_t
796 ecb_bswap16 (uint16_t x) 1029 ecb_bswap16 (uint16_t x)
797 { 1030 {
798 return ecb_rotl16 (x, 8); 1031 return ecb_rotl16 (x, 8);
799 } 1032 }
800 1033
801 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1034 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
802 ecb_function_ uint32_t 1035 ecb_function_ ecb_const uint32_t
803 ecb_bswap32 (uint32_t x) 1036 ecb_bswap32 (uint32_t x)
804 { 1037 {
805 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1038 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
806 } 1039 }
807 1040
808 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1041 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
809 ecb_function_ uint64_t 1042 ecb_function_ ecb_const uint64_t
810 ecb_bswap64 (uint64_t x) 1043 ecb_bswap64 (uint64_t x)
811 { 1044 {
812 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1045 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
813 } 1046 }
814#endif 1047#endif
815 1048
816#if ECB_GCC_VERSION(4,5) 1049#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
817 #define ecb_unreachable() __builtin_unreachable () 1050 #define ecb_unreachable() __builtin_unreachable ()
818#else 1051#else
819 /* 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 :/ */
820 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 1053 ecb_inline ecb_noreturn void ecb_unreachable (void);
821 ecb_function_ void ecb_unreachable (void) { } 1054 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
822#endif 1055#endif
823 1056
824/* try to tell the compiler that some condition is definitely true */ 1057/* try to tell the compiler that some condition is definitely true */
825#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1058#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
826 1059
827ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 1060ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
828ecb_function_ unsigned char 1061ecb_inline ecb_const unsigned char
829ecb_byteorder_helper (void) 1062ecb_byteorder_helper (void)
830{ 1063{
831 const uint32_t u = 0x11223344; 1064 /* the union code still generates code under pressure in gcc, */
832 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
833} 1084}
834 1085
835ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1086ecb_inline ecb_const ecb_bool ecb_big_endian (void);
836ecb_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; }
837ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1088ecb_inline ecb_const ecb_bool ecb_little_endian (void);
838ecb_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; }
839 1090
840#if ECB_GCC_VERSION(3,0) || ECB_C99 1091#if ECB_GCC_VERSION(3,0) || ECB_C99
841 #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))
842#else 1093#else
843 #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)))
844#endif 1095#endif
845 1096
846#if __cplusplus 1097#if ECB_CPP
847 template<typename T> 1098 template<typename T>
848 static inline T ecb_div_rd (T val, T div) 1099 static inline T ecb_div_rd (T val, T div)
849 { 1100 {
850 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1101 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
851 } 1102 }
… …
868 } 1119 }
869#else 1120#else
870 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1121 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
871#endif 1122#endif
872 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
873#endif 1332#endif
874 1333
875/* ECB.H END */ 1334/* ECB.H END */
876 1335
877#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1336#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
878/* if your architecture doesn't need memory fences, e.g. because it is 1337/* if your architecture doesn't need memory fences, e.g. because it is
879 * single-cpu/core, or if you use libev in a project that doesn't use libev 1338 * single-cpu/core, or if you use libev in a project that doesn't use libev
880 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1339 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
881 * libev, in which casess the memory fences become nops. 1340 * libev, in which cases the memory fences become nops.
882 * alternatively, you can remove this #error and link against libpthread, 1341 * alternatively, you can remove this #error and link against libpthread,
883 * which will then provide the memory fences. 1342 * which will then provide the memory fences.
884 */ 1343 */
885# error "memory fences not defined for your architecture, please report" 1344# error "memory fences not defined for your architecture, please report"
886#endif 1345#endif
… …
1043{ 1502{
1044 write (STDERR_FILENO, msg, strlen (msg)); 1503 write (STDERR_FILENO, msg, strlen (msg));
1045} 1504}
1046#endif 1505#endif
1047 1506
1048static void (*syserr_cb)(const char *msg); 1507static void (*syserr_cb)(const char *msg) EV_THROW;
1049 1508
1050void ecb_cold 1509void ecb_cold
1051ev_set_syserr_cb (void (*cb)(const char *msg)) 1510ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1052{ 1511{
1053 syserr_cb = cb; 1512 syserr_cb = cb;
1054} 1513}
1055 1514
1056static void noinline ecb_cold 1515static void noinline ecb_cold
… …
1074 abort (); 1533 abort ();
1075 } 1534 }
1076} 1535}
1077 1536
1078static void * 1537static void *
1079ev_realloc_emul (void *ptr, long size) 1538ev_realloc_emul (void *ptr, long size) EV_THROW
1080{ 1539{
1081#if __GLIBC__
1082 return realloc (ptr, size);
1083#else
1084 /* some systems, notably openbsd and darwin, fail to properly 1540 /* some systems, notably openbsd and darwin, fail to properly
1085 * 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
1086 * 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.
1087 */ 1545 */
1088 1546
1089 if (size) 1547 if (size)
1090 return realloc (ptr, size); 1548 return realloc (ptr, size);
1091 1549
1092 free (ptr); 1550 free (ptr);
1093 return 0; 1551 return 0;
1094#endif
1095} 1552}
1096 1553
1097static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1554static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1098 1555
1099void ecb_cold 1556void ecb_cold
1100ev_set_allocator (void *(*cb)(void *ptr, long size)) 1557ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1101{ 1558{
1102 alloc = cb; 1559 alloc = cb;
1103} 1560}
1104 1561
1105inline_speed void * 1562inline_speed void *
… …
1193 #undef VAR 1650 #undef VAR
1194 }; 1651 };
1195 #include "ev_wrap.h" 1652 #include "ev_wrap.h"
1196 1653
1197 static struct ev_loop default_loop_struct; 1654 static struct ev_loop default_loop_struct;
1198 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 */
1199 1656
1200#else 1657#else
1201 1658
1202 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 */
1203 #define VAR(name,decl) static decl; 1660 #define VAR(name,decl) static decl;
1204 #include "ev_vars.h" 1661 #include "ev_vars.h"
1205 #undef VAR 1662 #undef VAR
1206 1663
1207 static int ev_default_loop_ptr; 1664 static int ev_default_loop_ptr;
… …
1222 1679
1223/*****************************************************************************/ 1680/*****************************************************************************/
1224 1681
1225#ifndef EV_HAVE_EV_TIME 1682#ifndef EV_HAVE_EV_TIME
1226ev_tstamp 1683ev_tstamp
1227ev_time (void) 1684ev_time (void) EV_THROW
1228{ 1685{
1229#if EV_USE_REALTIME 1686#if EV_USE_REALTIME
1230 if (expect_true (have_realtime)) 1687 if (expect_true (have_realtime))
1231 { 1688 {
1232 struct timespec ts; 1689 struct timespec ts;
… …
1256 return ev_time (); 1713 return ev_time ();
1257} 1714}
1258 1715
1259#if EV_MULTIPLICITY 1716#if EV_MULTIPLICITY
1260ev_tstamp 1717ev_tstamp
1261ev_now (EV_P) 1718ev_now (EV_P) EV_THROW
1262{ 1719{
1263 return ev_rt_now; 1720 return ev_rt_now;
1264} 1721}
1265#endif 1722#endif
1266 1723
1267void 1724void
1268ev_sleep (ev_tstamp delay) 1725ev_sleep (ev_tstamp delay) EV_THROW
1269{ 1726{
1270 if (delay > 0.) 1727 if (delay > 0.)
1271 { 1728 {
1272#if EV_USE_NANOSLEEP 1729#if EV_USE_NANOSLEEP
1273 struct timespec ts; 1730 struct timespec ts;
1274 1731
1275 EV_TS_SET (ts, delay); 1732 EV_TS_SET (ts, delay);
1276 nanosleep (&ts, 0); 1733 nanosleep (&ts, 0);
1277#elif defined(_WIN32) 1734#elif defined _WIN32
1278 Sleep ((unsigned long)(delay * 1e3)); 1735 Sleep ((unsigned long)(delay * 1e3));
1279#else 1736#else
1280 struct timeval tv; 1737 struct timeval tv;
1281 1738
1282 /* 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 */
… …
1301 1758
1302 do 1759 do
1303 ncur <<= 1; 1760 ncur <<= 1;
1304 while (cnt > ncur); 1761 while (cnt > ncur);
1305 1762
1306 /* 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 */
1307 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1764 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1308 { 1765 {
1309 ncur *= elem; 1766 ncur *= elem;
1310 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);
1311 ncur = ncur - sizeof (void *) * 4; 1768 ncur = ncur - sizeof (void *) * 4;
… …
1354pendingcb (EV_P_ ev_prepare *w, int revents) 1811pendingcb (EV_P_ ev_prepare *w, int revents)
1355{ 1812{
1356} 1813}
1357 1814
1358void noinline 1815void noinline
1359ev_feed_event (EV_P_ void *w, int revents) 1816ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1360{ 1817{
1361 W w_ = (W)w; 1818 W w_ = (W)w;
1362 int pri = ABSPRI (w_); 1819 int pri = ABSPRI (w_);
1363 1820
1364 if (expect_false (w_->pending)) 1821 if (expect_false (w_->pending))
… …
1368 w_->pending = ++pendingcnt [pri]; 1825 w_->pending = ++pendingcnt [pri];
1369 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1826 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1370 pendings [pri][w_->pending - 1].w = w_; 1827 pendings [pri][w_->pending - 1].w = w_;
1371 pendings [pri][w_->pending - 1].events = revents; 1828 pendings [pri][w_->pending - 1].events = revents;
1372 } 1829 }
1830
1831 pendingpri = NUMPRI - 1;
1373} 1832}
1374 1833
1375inline_speed void 1834inline_speed void
1376feed_reverse (EV_P_ W w) 1835feed_reverse (EV_P_ W w)
1377{ 1836{
… …
1423 if (expect_true (!anfd->reify)) 1882 if (expect_true (!anfd->reify))
1424 fd_event_nocheck (EV_A_ fd, revents); 1883 fd_event_nocheck (EV_A_ fd, revents);
1425} 1884}
1426 1885
1427void 1886void
1428ev_feed_fd_event (EV_P_ int fd, int revents) 1887ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1429{ 1888{
1430 if (fd >= 0 && fd < anfdmax) 1889 if (fd >= 0 && fd < anfdmax)
1431 fd_event_nocheck (EV_A_ fd, revents); 1890 fd_event_nocheck (EV_A_ fd, revents);
1432} 1891}
1433 1892
… …
1752static void noinline ecb_cold 2211static void noinline ecb_cold
1753evpipe_init (EV_P) 2212evpipe_init (EV_P)
1754{ 2213{
1755 if (!ev_is_active (&pipe_w)) 2214 if (!ev_is_active (&pipe_w))
1756 { 2215 {
2216 int fds [2];
2217
1757# if EV_USE_EVENTFD 2218# if EV_USE_EVENTFD
2219 fds [0] = -1;
1758 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2220 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1759 if (evfd < 0 && errno == EINVAL) 2221 if (fds [1] < 0 && errno == EINVAL)
1760 evfd = eventfd (0, 0); 2222 fds [1] = eventfd (0, 0);
1761 2223
1762 if (evfd >= 0) 2224 if (fds [1] < 0)
2225# endif
1763 { 2226 {
2227 while (pipe (fds))
2228 ev_syserr ("(libev) error creating signal/async pipe");
2229
2230 fd_intern (fds [0]);
2231 }
2232
1764 evpipe [0] = -1; 2233 evpipe [0] = fds [0];
1765 fd_intern (evfd); /* doing it twice doesn't hurt */ 2234
1766 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));
1767 } 2285 }
1768 else 2286 else
1769# endif 2287#endif
1770 { 2288 {
1771 while (pipe (evpipe)) 2289#ifdef _WIN32
1772 ev_syserr ("(libev) error creating signal/async pipe"); 2290 WSABUF buf;
1773 2291 DWORD sent;
1774 fd_intern (evpipe [0]); 2292 buf.buf = &buf;
1775 fd_intern (evpipe [1]); 2293 buf.len = 1;
1776 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2294 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1777 } 2295#else
1778
1779 ev_io_start (EV_A_ &pipe_w);
1780 ev_unref (EV_A); /* watcher should not keep loop alive */
1781 }
1782}
1783
1784inline_speed void
1785evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1786{
1787 if (expect_true (*flag))
1788 return;
1789
1790 *flag = 1;
1791
1792 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1793
1794 pipe_write_skipped = 1;
1795
1796 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1797
1798 if (pipe_write_wanted)
1799 {
1800 int old_errno;
1801
1802 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1803
1804 old_errno = errno; /* save errno because write will clobber it */
1805
1806#if EV_USE_EVENTFD
1807 if (evfd >= 0)
1808 {
1809 uint64_t counter = 1;
1810 write (evfd, &counter, sizeof (uint64_t));
1811 }
1812 else
1813#endif
1814 {
1815 /* win32 people keep sending patches that change this write() to send() */
1816 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1817 /* so when you think this write should be a send instead, please find out */
1818 /* where your send() is from - it's definitely not the microsoft send, and */
1819 /* tell me. thank you. */
1820 write (evpipe [1], &(evpipe [1]), 1); 2296 write (evpipe [1], &(evpipe [1]), 1);
2297#endif
1821 } 2298 }
1822 2299
1823 errno = old_errno; 2300 errno = old_errno;
1824 } 2301 }
1825} 2302}
… …
1832 int i; 2309 int i;
1833 2310
1834 if (revents & EV_READ) 2311 if (revents & EV_READ)
1835 { 2312 {
1836#if EV_USE_EVENTFD 2313#if EV_USE_EVENTFD
1837 if (evfd >= 0) 2314 if (evpipe [0] < 0)
1838 { 2315 {
1839 uint64_t counter; 2316 uint64_t counter;
1840 read (evfd, &counter, sizeof (uint64_t)); 2317 read (evpipe [1], &counter, sizeof (uint64_t));
1841 } 2318 }
1842 else 2319 else
1843#endif 2320#endif
1844 { 2321 {
1845 char dummy; 2322 char dummy[4];
1846 /* 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
1847 read (evpipe [0], &dummy, 1); 2331 read (evpipe [0], &dummy, sizeof (dummy));
2332#endif
1848 } 2333 }
1849 } 2334 }
1850 2335
1851 pipe_write_skipped = 0; 2336 pipe_write_skipped = 0;
2337
2338 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1852 2339
1853#if EV_SIGNAL_ENABLE 2340#if EV_SIGNAL_ENABLE
1854 if (sig_pending) 2341 if (sig_pending)
1855 { 2342 {
1856 sig_pending = 0; 2343 sig_pending = 0;
2344
2345 ECB_MEMORY_FENCE;
1857 2346
1858 for (i = EV_NSIG - 1; i--; ) 2347 for (i = EV_NSIG - 1; i--; )
1859 if (expect_false (signals [i].pending)) 2348 if (expect_false (signals [i].pending))
1860 ev_feed_signal_event (EV_A_ i + 1); 2349 ev_feed_signal_event (EV_A_ i + 1);
1861 } 2350 }
… …
1863 2352
1864#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1865 if (async_pending) 2354 if (async_pending)
1866 { 2355 {
1867 async_pending = 0; 2356 async_pending = 0;
2357
2358 ECB_MEMORY_FENCE;
1868 2359
1869 for (i = asynccnt; i--; ) 2360 for (i = asynccnt; i--; )
1870 if (asyncs [i]->sent) 2361 if (asyncs [i]->sent)
1871 { 2362 {
1872 asyncs [i]->sent = 0; 2363 asyncs [i]->sent = 0;
2364 ECB_MEMORY_FENCE_RELEASE;
1873 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2365 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1874 } 2366 }
1875 } 2367 }
1876#endif 2368#endif
1877} 2369}
1878 2370
1879/*****************************************************************************/ 2371/*****************************************************************************/
1880 2372
1881void 2373void
1882ev_feed_signal (int signum) 2374ev_feed_signal (int signum) EV_THROW
1883{ 2375{
1884#if EV_MULTIPLICITY 2376#if EV_MULTIPLICITY
2377 EV_P;
2378 ECB_MEMORY_FENCE_ACQUIRE;
1885 EV_P = signals [signum - 1].loop; 2379 EV_A = signals [signum - 1].loop;
1886 2380
1887 if (!EV_A) 2381 if (!EV_A)
1888 return; 2382 return;
1889#endif 2383#endif
1890 2384
1891 if (!ev_active (&pipe_w))
1892 return;
1893
1894 signals [signum - 1].pending = 1; 2385 signals [signum - 1].pending = 1;
1895 evpipe_write (EV_A_ &sig_pending); 2386 evpipe_write (EV_A_ &sig_pending);
1896} 2387}
1897 2388
1898static void 2389static void
… …
1904 2395
1905 ev_feed_signal (signum); 2396 ev_feed_signal (signum);
1906} 2397}
1907 2398
1908void noinline 2399void noinline
1909ev_feed_signal_event (EV_P_ int signum) 2400ev_feed_signal_event (EV_P_ int signum) EV_THROW
1910{ 2401{
1911 WL w; 2402 WL w;
1912 2403
1913 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2404 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1914 return; 2405 return;
1915 2406
1916 --signum; 2407 --signum;
1917 2408
1918#if EV_MULTIPLICITY 2409#if EV_MULTIPLICITY
… …
1922 if (expect_false (signals [signum].loop != EV_A)) 2413 if (expect_false (signals [signum].loop != EV_A))
1923 return; 2414 return;
1924#endif 2415#endif
1925 2416
1926 signals [signum].pending = 0; 2417 signals [signum].pending = 0;
2418 ECB_MEMORY_FENCE_RELEASE;
1927 2419
1928 for (w = signals [signum].head; w; w = w->next) 2420 for (w = signals [signum].head; w; w = w->next)
1929 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2421 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1930} 2422}
1931 2423
… …
2030#if EV_USE_SELECT 2522#if EV_USE_SELECT
2031# include "ev_select.c" 2523# include "ev_select.c"
2032#endif 2524#endif
2033 2525
2034int ecb_cold 2526int ecb_cold
2035ev_version_major (void) 2527ev_version_major (void) EV_THROW
2036{ 2528{
2037 return EV_VERSION_MAJOR; 2529 return EV_VERSION_MAJOR;
2038} 2530}
2039 2531
2040int ecb_cold 2532int ecb_cold
2041ev_version_minor (void) 2533ev_version_minor (void) EV_THROW
2042{ 2534{
2043 return EV_VERSION_MINOR; 2535 return EV_VERSION_MINOR;
2044} 2536}
2045 2537
2046/* 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 */
… …
2054 || getgid () != getegid (); 2546 || getgid () != getegid ();
2055#endif 2547#endif
2056} 2548}
2057 2549
2058unsigned int ecb_cold 2550unsigned int ecb_cold
2059ev_supported_backends (void) 2551ev_supported_backends (void) EV_THROW
2060{ 2552{
2061 unsigned int flags = 0; 2553 unsigned int flags = 0;
2062 2554
2063 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2555 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2064 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2556 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2068 2560
2069 return flags; 2561 return flags;
2070} 2562}
2071 2563
2072unsigned int ecb_cold 2564unsigned int ecb_cold
2073ev_recommended_backends (void) 2565ev_recommended_backends (void) EV_THROW
2074{ 2566{
2075 unsigned int flags = ev_supported_backends (); 2567 unsigned int flags = ev_supported_backends ();
2076 2568
2077#ifndef __NetBSD__ 2569#ifndef __NetBSD__
2078 /* kqueue is borked on everything but netbsd apparently */ 2570 /* kqueue is borked on everything but netbsd apparently */
… …
2090 2582
2091 return flags; 2583 return flags;
2092} 2584}
2093 2585
2094unsigned int ecb_cold 2586unsigned int ecb_cold
2095ev_embeddable_backends (void) 2587ev_embeddable_backends (void) EV_THROW
2096{ 2588{
2097 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2589 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2098 2590
2099 /* 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 */
2100 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 */
… …
2102 2594
2103 return flags; 2595 return flags;
2104} 2596}
2105 2597
2106unsigned int 2598unsigned int
2107ev_backend (EV_P) 2599ev_backend (EV_P) EV_THROW
2108{ 2600{
2109 return backend; 2601 return backend;
2110} 2602}
2111 2603
2112#if EV_FEATURE_API 2604#if EV_FEATURE_API
2113unsigned int 2605unsigned int
2114ev_iteration (EV_P) 2606ev_iteration (EV_P) EV_THROW
2115{ 2607{
2116 return loop_count; 2608 return loop_count;
2117} 2609}
2118 2610
2119unsigned int 2611unsigned int
2120ev_depth (EV_P) 2612ev_depth (EV_P) EV_THROW
2121{ 2613{
2122 return loop_depth; 2614 return loop_depth;
2123} 2615}
2124 2616
2125void 2617void
2126ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2618ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2127{ 2619{
2128 io_blocktime = interval; 2620 io_blocktime = interval;
2129} 2621}
2130 2622
2131void 2623void
2132ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2624ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2133{ 2625{
2134 timeout_blocktime = interval; 2626 timeout_blocktime = interval;
2135} 2627}
2136 2628
2137void 2629void
2138ev_set_userdata (EV_P_ void *data) 2630ev_set_userdata (EV_P_ void *data) EV_THROW
2139{ 2631{
2140 userdata = data; 2632 userdata = data;
2141} 2633}
2142 2634
2143void * 2635void *
2144ev_userdata (EV_P) 2636ev_userdata (EV_P) EV_THROW
2145{ 2637{
2146 return userdata; 2638 return userdata;
2147} 2639}
2148 2640
2149void 2641void
2150ev_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
2151{ 2643{
2152 invoke_cb = invoke_pending_cb; 2644 invoke_cb = invoke_pending_cb;
2153} 2645}
2154 2646
2155void 2647void
2156ev_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
2157{ 2649{
2158 release_cb = release; 2650 release_cb = release;
2159 acquire_cb = acquire; 2651 acquire_cb = acquire;
2160} 2652}
2161#endif 2653#endif
2162 2654
2163/* initialise a loop structure, must be zero-initialised */ 2655/* initialise a loop structure, must be zero-initialised */
2164static void noinline ecb_cold 2656static void noinline ecb_cold
2165loop_init (EV_P_ unsigned int flags) 2657loop_init (EV_P_ unsigned int flags) EV_THROW
2166{ 2658{
2167 if (!backend) 2659 if (!backend)
2168 { 2660 {
2169 origflags = flags; 2661 origflags = flags;
2170 2662
… …
2215#if EV_ASYNC_ENABLE 2707#if EV_ASYNC_ENABLE
2216 async_pending = 0; 2708 async_pending = 0;
2217#endif 2709#endif
2218 pipe_write_skipped = 0; 2710 pipe_write_skipped = 0;
2219 pipe_write_wanted = 0; 2711 pipe_write_wanted = 0;
2712 evpipe [0] = -1;
2713 evpipe [1] = -1;
2220#if EV_USE_INOTIFY 2714#if EV_USE_INOTIFY
2221 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2222#endif 2716#endif
2223#if EV_USE_SIGNALFD 2717#if EV_USE_SIGNALFD
2224 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2275 EV_INVOKE_PENDING; 2769 EV_INVOKE_PENDING;
2276 } 2770 }
2277#endif 2771#endif
2278 2772
2279#if EV_CHILD_ENABLE 2773#if EV_CHILD_ENABLE
2280 if (ev_is_active (&childev)) 2774 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2281 { 2775 {
2282 ev_ref (EV_A); /* child watcher */ 2776 ev_ref (EV_A); /* child watcher */
2283 ev_signal_stop (EV_A_ &childev); 2777 ev_signal_stop (EV_A_ &childev);
2284 } 2778 }
2285#endif 2779#endif
… …
2287 if (ev_is_active (&pipe_w)) 2781 if (ev_is_active (&pipe_w))
2288 { 2782 {
2289 /*ev_ref (EV_A);*/ 2783 /*ev_ref (EV_A);*/
2290 /*ev_io_stop (EV_A_ &pipe_w);*/ 2784 /*ev_io_stop (EV_A_ &pipe_w);*/
2291 2785
2292#if EV_USE_EVENTFD
2293 if (evfd >= 0)
2294 close (evfd);
2295#endif
2296
2297 if (evpipe [0] >= 0)
2298 {
2299 EV_WIN32_CLOSE_FD (evpipe [0]); 2786 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2300 EV_WIN32_CLOSE_FD (evpipe [1]); 2787 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2301 }
2302 } 2788 }
2303 2789
2304#if EV_USE_SIGNALFD 2790#if EV_USE_SIGNALFD
2305 if (ev_is_active (&sigfd_w)) 2791 if (ev_is_active (&sigfd_w))
2306 close (sigfd); 2792 close (sigfd);
… …
2392#endif 2878#endif
2393#if EV_USE_INOTIFY 2879#if EV_USE_INOTIFY
2394 infy_fork (EV_A); 2880 infy_fork (EV_A);
2395#endif 2881#endif
2396 2882
2883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397 if (ev_is_active (&pipe_w)) 2884 if (ev_is_active (&pipe_w))
2398 { 2885 {
2399 /* 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 */
2400 2887
2401 ev_ref (EV_A); 2888 ev_ref (EV_A);
2402 ev_io_stop (EV_A_ &pipe_w); 2889 ev_io_stop (EV_A_ &pipe_w);
2403 2890
2404#if EV_USE_EVENTFD
2405 if (evfd >= 0)
2406 close (evfd);
2407#endif
2408
2409 if (evpipe [0] >= 0) 2891 if (evpipe [0] >= 0)
2410 {
2411 EV_WIN32_CLOSE_FD (evpipe [0]); 2892 EV_WIN32_CLOSE_FD (evpipe [0]);
2412 EV_WIN32_CLOSE_FD (evpipe [1]);
2413 }
2414 2893
2415#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2416 evpipe_init (EV_A); 2894 evpipe_init (EV_A);
2417 /* now iterate over everything, in case we missed something */ 2895 /* iterate over everything, in case we missed something before */
2418 pipecb (EV_A_ &pipe_w, EV_READ); 2896 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2419#endif
2420 } 2897 }
2898#endif
2421 2899
2422 postfork = 0; 2900 postfork = 0;
2423} 2901}
2424 2902
2425#if EV_MULTIPLICITY 2903#if EV_MULTIPLICITY
2426 2904
2427struct ev_loop * ecb_cold 2905struct ev_loop * ecb_cold
2428ev_loop_new (unsigned int flags) 2906ev_loop_new (unsigned int flags) EV_THROW
2429{ 2907{
2430 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2908 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2431 2909
2432 memset (EV_A, 0, sizeof (struct ev_loop)); 2910 memset (EV_A, 0, sizeof (struct ev_loop));
2433 loop_init (EV_A_ flags); 2911 loop_init (EV_A_ flags);
… …
2477} 2955}
2478#endif 2956#endif
2479 2957
2480#if EV_FEATURE_API 2958#if EV_FEATURE_API
2481void ecb_cold 2959void ecb_cold
2482ev_verify (EV_P) 2960ev_verify (EV_P) EV_THROW
2483{ 2961{
2484#if EV_VERIFY 2962#if EV_VERIFY
2485 int i; 2963 int i;
2486 WL w; 2964 WL w, w2;
2487 2965
2488 assert (activecnt >= -1); 2966 assert (activecnt >= -1);
2489 2967
2490 assert (fdchangemax >= fdchangecnt); 2968 assert (fdchangemax >= fdchangecnt);
2491 for (i = 0; i < fdchangecnt; ++i) 2969 for (i = 0; i < fdchangecnt; ++i)
2492 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2970 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2493 2971
2494 assert (anfdmax >= 0); 2972 assert (anfdmax >= 0);
2495 for (i = 0; i < anfdmax; ++i) 2973 for (i = 0; i < anfdmax; ++i)
2974 {
2975 int j = 0;
2976
2496 for (w = anfds [i].head; w; w = w->next) 2977 for (w = w2 = anfds [i].head; w; w = w->next)
2497 { 2978 {
2498 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
2499 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));
2500 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));
2501 } 2989 }
2990 }
2502 2991
2503 assert (timermax >= timercnt); 2992 assert (timermax >= timercnt);
2504 verify_heap (EV_A_ timers, timercnt); 2993 verify_heap (EV_A_ timers, timercnt);
2505 2994
2506#if EV_PERIODIC_ENABLE 2995#if EV_PERIODIC_ENABLE
… …
2556#if EV_MULTIPLICITY 3045#if EV_MULTIPLICITY
2557struct ev_loop * ecb_cold 3046struct ev_loop * ecb_cold
2558#else 3047#else
2559int 3048int
2560#endif 3049#endif
2561ev_default_loop (unsigned int flags) 3050ev_default_loop (unsigned int flags) EV_THROW
2562{ 3051{
2563 if (!ev_default_loop_ptr) 3052 if (!ev_default_loop_ptr)
2564 { 3053 {
2565#if EV_MULTIPLICITY 3054#if EV_MULTIPLICITY
2566 EV_P = ev_default_loop_ptr = &default_loop_struct; 3055 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2585 3074
2586 return ev_default_loop_ptr; 3075 return ev_default_loop_ptr;
2587} 3076}
2588 3077
2589void 3078void
2590ev_loop_fork (EV_P) 3079ev_loop_fork (EV_P) EV_THROW
2591{ 3080{
2592 postfork = 1; /* must be in line with ev_default_fork */ 3081 postfork = 1;
2593} 3082}
2594 3083
2595/*****************************************************************************/ 3084/*****************************************************************************/
2596 3085
2597void 3086void
… …
2599{ 3088{
2600 EV_CB_INVOKE ((W)w, revents); 3089 EV_CB_INVOKE ((W)w, revents);
2601} 3090}
2602 3091
2603unsigned int 3092unsigned int
2604ev_pending_count (EV_P) 3093ev_pending_count (EV_P) EV_THROW
2605{ 3094{
2606 int pri; 3095 int pri;
2607 unsigned int count = 0; 3096 unsigned int count = 0;
2608 3097
2609 for (pri = NUMPRI; pri--; ) 3098 for (pri = NUMPRI; pri--; )
… …
2613} 3102}
2614 3103
2615void noinline 3104void noinline
2616ev_invoke_pending (EV_P) 3105ev_invoke_pending (EV_P)
2617{ 3106{
2618 int pri; 3107 pendingpri = NUMPRI;
2619 3108
2620 for (pri = NUMPRI; pri--; ) 3109 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3110 {
3111 --pendingpri;
3112
2621 while (pendingcnt [pri]) 3113 while (pendingcnt [pendingpri])
2622 { 3114 {
2623 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3115 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2624 3116
2625 p->w->pending = 0; 3117 p->w->pending = 0;
2626 EV_CB_INVOKE (p->w, p->events); 3118 EV_CB_INVOKE (p->w, p->events);
2627 EV_FREQUENT_CHECK; 3119 EV_FREQUENT_CHECK;
2628 } 3120 }
3121 }
2629} 3122}
2630 3123
2631#if EV_IDLE_ENABLE 3124#if EV_IDLE_ENABLE
2632/* make idle watchers pending. this handles the "call-idle */ 3125/* make idle watchers pending. this handles the "call-idle */
2633/* only when higher priorities are idle" logic */ 3126/* only when higher priorities are idle" logic */
… …
2723{ 3216{
2724 EV_FREQUENT_CHECK; 3217 EV_FREQUENT_CHECK;
2725 3218
2726 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3219 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2727 { 3220 {
2728 int feed_count = 0;
2729
2730 do 3221 do
2731 { 3222 {
2732 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3223 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2733 3224
2734 /*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)));*/
… …
2868 3359
2869 mn_now = ev_rt_now; 3360 mn_now = ev_rt_now;
2870 } 3361 }
2871} 3362}
2872 3363
2873void 3364int
2874ev_run (EV_P_ int flags) 3365ev_run (EV_P_ int flags)
2875{ 3366{
2876#if EV_FEATURE_API 3367#if EV_FEATURE_API
2877 ++loop_depth; 3368 ++loop_depth;
2878#endif 3369#endif
… …
2991#endif 3482#endif
2992 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3483 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2993 backend_poll (EV_A_ waittime); 3484 backend_poll (EV_A_ waittime);
2994 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3485 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2995 3486
2996 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3487 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2997 3488
3489 ECB_MEMORY_FENCE_ACQUIRE;
2998 if (pipe_write_skipped) 3490 if (pipe_write_skipped)
2999 { 3491 {
3000 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)));
3001 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3493 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3002 } 3494 }
… …
3035 loop_done = EVBREAK_CANCEL; 3527 loop_done = EVBREAK_CANCEL;
3036 3528
3037#if EV_FEATURE_API 3529#if EV_FEATURE_API
3038 --loop_depth; 3530 --loop_depth;
3039#endif 3531#endif
3532
3533 return activecnt;
3040} 3534}
3041 3535
3042void 3536void
3043ev_break (EV_P_ int how) 3537ev_break (EV_P_ int how) EV_THROW
3044{ 3538{
3045 loop_done = how; 3539 loop_done = how;
3046} 3540}
3047 3541
3048void 3542void
3049ev_ref (EV_P) 3543ev_ref (EV_P) EV_THROW
3050{ 3544{
3051 ++activecnt; 3545 ++activecnt;
3052} 3546}
3053 3547
3054void 3548void
3055ev_unref (EV_P) 3549ev_unref (EV_P) EV_THROW
3056{ 3550{
3057 --activecnt; 3551 --activecnt;
3058} 3552}
3059 3553
3060void 3554void
3061ev_now_update (EV_P) 3555ev_now_update (EV_P) EV_THROW
3062{ 3556{
3063 time_update (EV_A_ 1e100); 3557 time_update (EV_A_ 1e100);
3064} 3558}
3065 3559
3066void 3560void
3067ev_suspend (EV_P) 3561ev_suspend (EV_P) EV_THROW
3068{ 3562{
3069 ev_now_update (EV_A); 3563 ev_now_update (EV_A);
3070} 3564}
3071 3565
3072void 3566void
3073ev_resume (EV_P) 3567ev_resume (EV_P) EV_THROW
3074{ 3568{
3075 ev_tstamp mn_prev = mn_now; 3569 ev_tstamp mn_prev = mn_now;
3076 3570
3077 ev_now_update (EV_A); 3571 ev_now_update (EV_A);
3078 timers_reschedule (EV_A_ mn_now - mn_prev); 3572 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3117 w->pending = 0; 3611 w->pending = 0;
3118 } 3612 }
3119} 3613}
3120 3614
3121int 3615int
3122ev_clear_pending (EV_P_ void *w) 3616ev_clear_pending (EV_P_ void *w) EV_THROW
3123{ 3617{
3124 W w_ = (W)w; 3618 W w_ = (W)w;
3125 int pending = w_->pending; 3619 int pending = w_->pending;
3126 3620
3127 if (expect_true (pending)) 3621 if (expect_true (pending))
… …
3160} 3654}
3161 3655
3162/*****************************************************************************/ 3656/*****************************************************************************/
3163 3657
3164void noinline 3658void noinline
3165ev_io_start (EV_P_ ev_io *w) 3659ev_io_start (EV_P_ ev_io *w) EV_THROW
3166{ 3660{
3167 int fd = w->fd; 3661 int fd = w->fd;
3168 3662
3169 if (expect_false (ev_is_active (w))) 3663 if (expect_false (ev_is_active (w)))
3170 return; 3664 return;
… …
3176 3670
3177 ev_start (EV_A_ (W)w, 1); 3671 ev_start (EV_A_ (W)w, 1);
3178 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3672 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3179 wlist_add (&anfds[fd].head, (WL)w); 3673 wlist_add (&anfds[fd].head, (WL)w);
3180 3674
3675 /* common bug, apparently */
3676 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3677
3181 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);
3182 w->events &= ~EV__IOFDSET; 3679 w->events &= ~EV__IOFDSET;
3183 3680
3184 EV_FREQUENT_CHECK; 3681 EV_FREQUENT_CHECK;
3185} 3682}
3186 3683
3187void noinline 3684void noinline
3188ev_io_stop (EV_P_ ev_io *w) 3685ev_io_stop (EV_P_ ev_io *w) EV_THROW
3189{ 3686{
3190 clear_pending (EV_A_ (W)w); 3687 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3688 if (expect_false (!ev_is_active (w)))
3192 return; 3689 return;
3193 3690
… …
3202 3699
3203 EV_FREQUENT_CHECK; 3700 EV_FREQUENT_CHECK;
3204} 3701}
3205 3702
3206void noinline 3703void noinline
3207ev_timer_start (EV_P_ ev_timer *w) 3704ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3208{ 3705{
3209 if (expect_false (ev_is_active (w))) 3706 if (expect_false (ev_is_active (w)))
3210 return; 3707 return;
3211 3708
3212 ev_at (w) += mn_now; 3709 ev_at (w) += mn_now;
… …
3226 3723
3227 /*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));*/
3228} 3725}
3229 3726
3230void noinline 3727void noinline
3231ev_timer_stop (EV_P_ ev_timer *w) 3728ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3232{ 3729{
3233 clear_pending (EV_A_ (W)w); 3730 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 3731 if (expect_false (!ev_is_active (w)))
3235 return; 3732 return;
3236 3733
… …
3256 3753
3257 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3258} 3755}
3259 3756
3260void noinline 3757void noinline
3261ev_timer_again (EV_P_ ev_timer *w) 3758ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3262{ 3759{
3263 EV_FREQUENT_CHECK; 3760 EV_FREQUENT_CHECK;
3761
3762 clear_pending (EV_A_ (W)w);
3264 3763
3265 if (ev_is_active (w)) 3764 if (ev_is_active (w))
3266 { 3765 {
3267 if (w->repeat) 3766 if (w->repeat)
3268 { 3767 {
… …
3281 3780
3282 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
3283} 3782}
3284 3783
3285ev_tstamp 3784ev_tstamp
3286ev_timer_remaining (EV_P_ ev_timer *w) 3785ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3287{ 3786{
3288 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3787 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3289} 3788}
3290 3789
3291#if EV_PERIODIC_ENABLE 3790#if EV_PERIODIC_ENABLE
3292void noinline 3791void noinline
3293ev_periodic_start (EV_P_ ev_periodic *w) 3792ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3294{ 3793{
3295 if (expect_false (ev_is_active (w))) 3794 if (expect_false (ev_is_active (w)))
3296 return; 3795 return;
3297 3796
3298 if (w->reschedule_cb) 3797 if (w->reschedule_cb)
… …
3318 3817
3319 /*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));*/
3320} 3819}
3321 3820
3322void noinline 3821void noinline
3323ev_periodic_stop (EV_P_ ev_periodic *w) 3822ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3324{ 3823{
3325 clear_pending (EV_A_ (W)w); 3824 clear_pending (EV_A_ (W)w);
3326 if (expect_false (!ev_is_active (w))) 3825 if (expect_false (!ev_is_active (w)))
3327 return; 3826 return;
3328 3827
… …
3346 3845
3347 EV_FREQUENT_CHECK; 3846 EV_FREQUENT_CHECK;
3348} 3847}
3349 3848
3350void noinline 3849void noinline
3351ev_periodic_again (EV_P_ ev_periodic *w) 3850ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3352{ 3851{
3353 /* TODO: use adjustheap and recalculation */ 3852 /* TODO: use adjustheap and recalculation */
3354 ev_periodic_stop (EV_A_ w); 3853 ev_periodic_stop (EV_A_ w);
3355 ev_periodic_start (EV_A_ w); 3854 ev_periodic_start (EV_A_ w);
3356} 3855}
… …
3361#endif 3860#endif
3362 3861
3363#if EV_SIGNAL_ENABLE 3862#if EV_SIGNAL_ENABLE
3364 3863
3365void noinline 3864void noinline
3366ev_signal_start (EV_P_ ev_signal *w) 3865ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3367{ 3866{
3368 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
3369 return; 3868 return;
3370 3869
3371 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));
… …
3373#if EV_MULTIPLICITY 3872#if EV_MULTIPLICITY
3374 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",
3375 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3874 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3376 3875
3377 signals [w->signum - 1].loop = EV_A; 3876 signals [w->signum - 1].loop = EV_A;
3877 ECB_MEMORY_FENCE_RELEASE;
3378#endif 3878#endif
3379 3879
3380 EV_FREQUENT_CHECK; 3880 EV_FREQUENT_CHECK;
3381 3881
3382#if EV_USE_SIGNALFD 3882#if EV_USE_SIGNALFD
… …
3442 3942
3443 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3444} 3944}
3445 3945
3446void noinline 3946void noinline
3447ev_signal_stop (EV_P_ ev_signal *w) 3947ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3448{ 3948{
3449 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3450 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3451 return; 3951 return;
3452 3952
… …
3483#endif 3983#endif
3484 3984
3485#if EV_CHILD_ENABLE 3985#if EV_CHILD_ENABLE
3486 3986
3487void 3987void
3488ev_child_start (EV_P_ ev_child *w) 3988ev_child_start (EV_P_ ev_child *w) EV_THROW
3489{ 3989{
3490#if EV_MULTIPLICITY 3990#if EV_MULTIPLICITY
3491 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));
3492#endif 3992#endif
3493 if (expect_false (ev_is_active (w))) 3993 if (expect_false (ev_is_active (w)))
… …
3500 4000
3501 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
3502} 4002}
3503 4003
3504void 4004void
3505ev_child_stop (EV_P_ ev_child *w) 4005ev_child_stop (EV_P_ ev_child *w) EV_THROW
3506{ 4006{
3507 clear_pending (EV_A_ (W)w); 4007 clear_pending (EV_A_ (W)w);
3508 if (expect_false (!ev_is_active (w))) 4008 if (expect_false (!ev_is_active (w)))
3509 return; 4009 return;
3510 4010
… …
3537# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4037# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3538 4038
3539static void noinline 4039static void noinline
3540infy_add (EV_P_ ev_stat *w) 4040infy_add (EV_P_ ev_stat *w)
3541{ 4041{
3542 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);
3543 4046
3544 if (w->wd >= 0) 4047 if (w->wd >= 0)
3545 { 4048 {
3546 struct statfs sfs; 4049 struct statfs sfs;
3547 4050
… …
3551 4054
3552 if (!fs_2625) 4055 if (!fs_2625)
3553 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4056 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3554 else if (!statfs (w->path, &sfs) 4057 else if (!statfs (w->path, &sfs)
3555 && (sfs.f_type == 0x1373 /* devfs */ 4058 && (sfs.f_type == 0x1373 /* devfs */
4059 || sfs.f_type == 0x4006 /* fat */
4060 || sfs.f_type == 0x4d44 /* msdos */
3556 || 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 */
3557 || sfs.f_type == 0x3153464a /* jfs */ 4065 || sfs.f_type == 0x3153464a /* jfs */
4066 || sfs.f_type == 0x9123683e /* btrfs */
3558 || sfs.f_type == 0x52654973 /* reiser3 */ 4067 || sfs.f_type == 0x52654973 /* reiser3 */
3559 || sfs.f_type == 0x01021994 /* tempfs */ 4068 || sfs.f_type == 0x01021994 /* tmpfs */
3560 || sfs.f_type == 0x58465342 /* xfs */)) 4069 || sfs.f_type == 0x58465342 /* xfs */))
3561 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4070 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3562 else 4071 else
3563 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 */
3564 } 4073 }
… …
3677} 4186}
3678 4187
3679inline_size int 4188inline_size int
3680infy_newfd (void) 4189infy_newfd (void)
3681{ 4190{
3682#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4191#if defined IN_CLOEXEC && defined IN_NONBLOCK
3683 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4192 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3684 if (fd >= 0) 4193 if (fd >= 0)
3685 return fd; 4194 return fd;
3686#endif 4195#endif
3687 return inotify_init (); 4196 return inotify_init ();
… …
3762#else 4271#else
3763# define EV_LSTAT(p,b) lstat (p, b) 4272# define EV_LSTAT(p,b) lstat (p, b)
3764#endif 4273#endif
3765 4274
3766void 4275void
3767ev_stat_stat (EV_P_ ev_stat *w) 4276ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3768{ 4277{
3769 if (lstat (w->path, &w->attr) < 0) 4278 if (lstat (w->path, &w->attr) < 0)
3770 w->attr.st_nlink = 0; 4279 w->attr.st_nlink = 0;
3771 else if (!w->attr.st_nlink) 4280 else if (!w->attr.st_nlink)
3772 w->attr.st_nlink = 1; 4281 w->attr.st_nlink = 1;
… …
3811 ev_feed_event (EV_A_ w, EV_STAT); 4320 ev_feed_event (EV_A_ w, EV_STAT);
3812 } 4321 }
3813} 4322}
3814 4323
3815void 4324void
3816ev_stat_start (EV_P_ ev_stat *w) 4325ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3817{ 4326{
3818 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3819 return; 4328 return;
3820 4329
3821 ev_stat_stat (EV_A_ w); 4330 ev_stat_stat (EV_A_ w);
… …
3842 4351
3843 EV_FREQUENT_CHECK; 4352 EV_FREQUENT_CHECK;
3844} 4353}
3845 4354
3846void 4355void
3847ev_stat_stop (EV_P_ ev_stat *w) 4356ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3848{ 4357{
3849 clear_pending (EV_A_ (W)w); 4358 clear_pending (EV_A_ (W)w);
3850 if (expect_false (!ev_is_active (w))) 4359 if (expect_false (!ev_is_active (w)))
3851 return; 4360 return;
3852 4361
… …
3868} 4377}
3869#endif 4378#endif
3870 4379
3871#if EV_IDLE_ENABLE 4380#if EV_IDLE_ENABLE
3872void 4381void
3873ev_idle_start (EV_P_ ev_idle *w) 4382ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3874{ 4383{
3875 if (expect_false (ev_is_active (w))) 4384 if (expect_false (ev_is_active (w)))
3876 return; 4385 return;
3877 4386
3878 pri_adjust (EV_A_ (W)w); 4387 pri_adjust (EV_A_ (W)w);
… …
3891 4400
3892 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3893} 4402}
3894 4403
3895void 4404void
3896ev_idle_stop (EV_P_ ev_idle *w) 4405ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3897{ 4406{
3898 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3899 if (expect_false (!ev_is_active (w))) 4408 if (expect_false (!ev_is_active (w)))
3900 return; 4409 return;
3901 4410
… …
3915} 4424}
3916#endif 4425#endif
3917 4426
3918#if EV_PREPARE_ENABLE 4427#if EV_PREPARE_ENABLE
3919void 4428void
3920ev_prepare_start (EV_P_ ev_prepare *w) 4429ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3921{ 4430{
3922 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
3923 return; 4432 return;
3924 4433
3925 EV_FREQUENT_CHECK; 4434 EV_FREQUENT_CHECK;
… …
3930 4439
3931 EV_FREQUENT_CHECK; 4440 EV_FREQUENT_CHECK;
3932} 4441}
3933 4442
3934void 4443void
3935ev_prepare_stop (EV_P_ ev_prepare *w) 4444ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3936{ 4445{
3937 clear_pending (EV_A_ (W)w); 4446 clear_pending (EV_A_ (W)w);
3938 if (expect_false (!ev_is_active (w))) 4447 if (expect_false (!ev_is_active (w)))
3939 return; 4448 return;
3940 4449
… …
3953} 4462}
3954#endif 4463#endif
3955 4464
3956#if EV_CHECK_ENABLE 4465#if EV_CHECK_ENABLE
3957void 4466void
3958ev_check_start (EV_P_ ev_check *w) 4467ev_check_start (EV_P_ ev_check *w) EV_THROW
3959{ 4468{
3960 if (expect_false (ev_is_active (w))) 4469 if (expect_false (ev_is_active (w)))
3961 return; 4470 return;
3962 4471
3963 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
… …
3968 4477
3969 EV_FREQUENT_CHECK; 4478 EV_FREQUENT_CHECK;
3970} 4479}
3971 4480
3972void 4481void
3973ev_check_stop (EV_P_ ev_check *w) 4482ev_check_stop (EV_P_ ev_check *w) EV_THROW
3974{ 4483{
3975 clear_pending (EV_A_ (W)w); 4484 clear_pending (EV_A_ (W)w);
3976 if (expect_false (!ev_is_active (w))) 4485 if (expect_false (!ev_is_active (w)))
3977 return; 4486 return;
3978 4487
… …
3991} 4500}
3992#endif 4501#endif
3993 4502
3994#if EV_EMBED_ENABLE 4503#if EV_EMBED_ENABLE
3995void noinline 4504void noinline
3996ev_embed_sweep (EV_P_ ev_embed *w) 4505ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3997{ 4506{
3998 ev_run (w->other, EVRUN_NOWAIT); 4507 ev_run (w->other, EVRUN_NOWAIT);
3999} 4508}
4000 4509
4001static void 4510static void
… …
4049 ev_idle_stop (EV_A_ idle); 4558 ev_idle_stop (EV_A_ idle);
4050} 4559}
4051#endif 4560#endif
4052 4561
4053void 4562void
4054ev_embed_start (EV_P_ ev_embed *w) 4563ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4055{ 4564{
4056 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
4057 return; 4566 return;
4058 4567
4059 { 4568 {
… …
4080 4589
4081 EV_FREQUENT_CHECK; 4590 EV_FREQUENT_CHECK;
4082} 4591}
4083 4592
4084void 4593void
4085ev_embed_stop (EV_P_ ev_embed *w) 4594ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4086{ 4595{
4087 clear_pending (EV_A_ (W)w); 4596 clear_pending (EV_A_ (W)w);
4088 if (expect_false (!ev_is_active (w))) 4597 if (expect_false (!ev_is_active (w)))
4089 return; 4598 return;
4090 4599
… …
4100} 4609}
4101#endif 4610#endif
4102 4611
4103#if EV_FORK_ENABLE 4612#if EV_FORK_ENABLE
4104void 4613void
4105ev_fork_start (EV_P_ ev_fork *w) 4614ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4106{ 4615{
4107 if (expect_false (ev_is_active (w))) 4616 if (expect_false (ev_is_active (w)))
4108 return; 4617 return;
4109 4618
4110 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
… …
4115 4624
4116 EV_FREQUENT_CHECK; 4625 EV_FREQUENT_CHECK;
4117} 4626}
4118 4627
4119void 4628void
4120ev_fork_stop (EV_P_ ev_fork *w) 4629ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4121{ 4630{
4122 clear_pending (EV_A_ (W)w); 4631 clear_pending (EV_A_ (W)w);
4123 if (expect_false (!ev_is_active (w))) 4632 if (expect_false (!ev_is_active (w)))
4124 return; 4633 return;
4125 4634
… …
4138} 4647}
4139#endif 4648#endif
4140 4649
4141#if EV_CLEANUP_ENABLE 4650#if EV_CLEANUP_ENABLE
4142void 4651void
4143ev_cleanup_start (EV_P_ ev_cleanup *w) 4652ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4144{ 4653{
4145 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4146 return; 4655 return;
4147 4656
4148 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4155 ev_unref (EV_A); 4664 ev_unref (EV_A);
4156 EV_FREQUENT_CHECK; 4665 EV_FREQUENT_CHECK;
4157} 4666}
4158 4667
4159void 4668void
4160ev_cleanup_stop (EV_P_ ev_cleanup *w) 4669ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4161{ 4670{
4162 clear_pending (EV_A_ (W)w); 4671 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4672 if (expect_false (!ev_is_active (w)))
4164 return; 4673 return;
4165 4674
… …
4179} 4688}
4180#endif 4689#endif
4181 4690
4182#if EV_ASYNC_ENABLE 4691#if EV_ASYNC_ENABLE
4183void 4692void
4184ev_async_start (EV_P_ ev_async *w) 4693ev_async_start (EV_P_ ev_async *w) EV_THROW
4185{ 4694{
4186 if (expect_false (ev_is_active (w))) 4695 if (expect_false (ev_is_active (w)))
4187 return; 4696 return;
4188 4697
4189 w->sent = 0; 4698 w->sent = 0;
… …
4198 4707
4199 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
4200} 4709}
4201 4710
4202void 4711void
4203ev_async_stop (EV_P_ ev_async *w) 4712ev_async_stop (EV_P_ ev_async *w) EV_THROW
4204{ 4713{
4205 clear_pending (EV_A_ (W)w); 4714 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w))) 4715 if (expect_false (!ev_is_active (w)))
4207 return; 4716 return;
4208 4717
… …
4219 4728
4220 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
4221} 4730}
4222 4731
4223void 4732void
4224ev_async_send (EV_P_ ev_async *w) 4733ev_async_send (EV_P_ ev_async *w) EV_THROW
4225{ 4734{
4226 w->sent = 1; 4735 w->sent = 1;
4227 evpipe_write (EV_A_ &async_pending); 4736 evpipe_write (EV_A_ &async_pending);
4228} 4737}
4229#endif 4738#endif
… …
4266 4775
4267 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));
4268} 4777}
4269 4778
4270void 4779void
4271ev_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
4272{ 4781{
4273 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));
4274 4783
4275 if (expect_false (!once)) 4784 if (expect_false (!once))
4276 { 4785 {
… …
4298 4807
4299/*****************************************************************************/ 4808/*****************************************************************************/
4300 4809
4301#if EV_WALK_ENABLE 4810#if EV_WALK_ENABLE
4302void ecb_cold 4811void ecb_cold
4303ev_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
4304{ 4813{
4305 int i, j; 4814 int i, j;
4306 ev_watcher_list *wl, *wn; 4815 ev_watcher_list *wl, *wn;
4307 4816
4308 if (types & (EV_IO | EV_EMBED)) 4817 if (types & (EV_IO | EV_EMBED))

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