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Comparing libev/ev.c (file contents):
Revision 1.387 by root, Wed Jul 20 01:04:43 2011 UTC vs.
Revision 1.480 by root, Thu Feb 18 04:48:05 2016 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
254#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 273# else
258# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
259# endif 275# endif
260#endif 276#endif
… …
347 363
348#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 366#endif
351 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 387# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
360# else 392# else
… …
363# endif 395# endif
364#endif 396#endif
365 397
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 399
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
377#endif 403#endif
378 404
… …
386# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
387#endif 413#endif
388 414
389#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 418# include <sys/select.h>
393# endif 419# endif
394#endif 420#endif
395 421
396#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
403# endif 429# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 430#endif
409 431
410#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 434# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 487
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 490
469/* the following are taken from libecb */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ecb.h start */ 492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010005
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
546 #if __GNUC__
547 typedef signed long long int64_t;
548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
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
562#else
563 #include <inttypes.h>
564 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8
566 #else
567 #define ECB_PTRSIZE 4
568 #endif
569#endif
570
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
574/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32
577 #define ECB_AMD64_X32 1
578 #else
579 #define ECB_AMD64 1
580 #endif
581#endif
471 582
472/* many compilers define _GNUC_ to some versions but then only implement 583/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions, 584 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers. 585 * causing enormous grief in return for some better fake benchmark numbers.
475 * or so. 586 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have 587 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place. 588 * an issue with that they should have done it right in the first place.
478 */ 589 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 590#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481 #define ECB_GCC_VERSION(major,minor) 0 591 #define ECB_GCC_VERSION(major,minor) 0
482 #else 592#else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 593 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
594#endif
595
596#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
597
598#if __clang__ && defined __has_builtin
599 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
600#else
601 #define ECB_CLANG_BUILTIN(x) 0
602#endif
603
604#if __clang__ && defined __has_extension
605 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
606#else
607 #define ECB_CLANG_EXTENSION(x) 0
608#endif
609
610#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L)
612
613#if ECB_CPP
614 #define ECB_C 0
615 #define ECB_STDC_VERSION 0
616#else
617 #define ECB_C 1
618 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif
620
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
623
624#if ECB_CPP
625 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END }
628#else
629 #define ECB_EXTERN_C extern
630 #define ECB_EXTERN_C_BEG
631 #define ECB_EXTERN_C_END
632#endif
633
634/*****************************************************************************/
635
636/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
637/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
638
639#if ECB_NO_THREADS
640 #define ECB_NO_SMP 1
641#endif
642
643#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0)
645#endif
646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP
649 #include <builtins.h>
650#endif
651
652#if 1400 <= _MSC_VER
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
654#endif
655
656#ifndef ECB_MEMORY_FENCE
657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
658 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
662 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
671 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
672 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
673 || defined __ARM_ARCH_5TEJ__
674 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
675 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
676 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
677 || defined __ARM_ARCH_6T2__
678 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
679 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
680 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
681 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
682 #elif __aarch64__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
684 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
686 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
687 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
688 #elif defined __s390__ || defined __s390x__
689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
690 #elif defined __mips__
691 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
692 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
693 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
694 #elif defined __alpha__
695 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
696 #elif defined __hppa__
697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
698 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
699 #elif defined __ia64__
700 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
701 #elif defined __m68k__
702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
703 #elif defined __m88k__
704 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
705 #elif defined __sh__
706 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
707 #endif
484 #endif 708 #endif
485#endif 709#endif
486 710
487#if __cplusplus 711#ifndef ECB_MEMORY_FENCE
712 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
717
718 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
723
724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
725 #define ECB_MEMORY_FENCE __sync_synchronize ()
726 #elif _MSC_VER >= 1500 /* VC++ 2008 */
727 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
728 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
729 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
730 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
731 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
732 #elif _MSC_VER >= 1400 /* VC++ 2005 */
733 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
734 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
735 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
736 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
737 #elif defined _WIN32
738 #include <WinNT.h>
739 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
740 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
741 #include <mbarrier.h>
742 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
743 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
744 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
745 #elif __xlC__
746 #define ECB_MEMORY_FENCE __sync ()
747 #endif
748#endif
749
750#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* we assume that these memory fences work on all variables/all memory accesses, */
753 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h>
755 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
756 /* any fence other than seq_cst, which isn't very efficient for us. */
757 /* Why that is, we don't know - either the C11 memory model is quite useless */
758 /* for most usages, or gcc and clang have a bug */
759 /* I *currently* lean towards the latter, and inefficiently implement */
760 /* all three of ecb's fences as a seq_cst fence */
761 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
762 /* for all __atomic_thread_fence's except seq_cst */
763 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
764 #endif
765#endif
766
767#ifndef ECB_MEMORY_FENCE
768 #if !ECB_AVOID_PTHREADS
769 /*
770 * if you get undefined symbol references to pthread_mutex_lock,
771 * or failure to find pthread.h, then you should implement
772 * the ECB_MEMORY_FENCE operations for your cpu/compiler
773 * OR provide pthread.h and link against the posix thread library
774 * of your system.
775 */
776 #include <pthread.h>
777 #define ECB_NEEDS_PTHREADS 1
778 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
779
780 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
781 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
782 #endif
783#endif
784
785#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
786 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
787#endif
788
789#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
790 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
791#endif
792
793/*****************************************************************************/
794
795#if ECB_CPP
488 #define ecb_inline static inline 796 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5) 797#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__ 798 #define ecb_inline static __inline__
491#elif ECB_C99 799#elif ECB_C99
492 #define ecb_inline static inline 800 #define ecb_inline static inline
493#else 801#else
494 #define ecb_inline static 802 #define ecb_inline static
495#endif 803#endif
496 804
497#ifndef ECB_MEMORY_FENCE
498 #if ECB_GCC_VERSION(2,5)
499 #if __x86
500 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
501 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
502 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
503 #elif __amd64
504 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
505 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
506 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
507 #endif
508 #endif
509#endif
510
511#ifndef ECB_MEMORY_FENCE
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif defined(_WIN32) && defined(MemoryBarrier)
517 #define ECB_MEMORY_FENCE MemoryBarrier ()
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #endif
521#endif
522
523#ifndef ECB_MEMORY_FENCE
524 #include <pthread.h>
525
526 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
527 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
528 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
529 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
530#endif
531
532#if ECB_GCC_VERSION(3,1) 805#if ECB_GCC_VERSION(3,3)
806 #define ecb_restrict __restrict__
807#elif ECB_C99
808 #define ecb_restrict restrict
809#else
810 #define ecb_restrict
811#endif
812
813typedef int ecb_bool;
814
815#define ECB_CONCAT_(a, b) a ## b
816#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
817#define ECB_STRINGIFY_(a) # a
818#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
819#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
820
821#define ecb_function_ ecb_inline
822
823#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
533 #define ecb_attribute(attrlist) __attribute__(attrlist) 824 #define ecb_attribute(attrlist) __attribute__ (attrlist)
825#else
826 #define ecb_attribute(attrlist)
827#endif
828
829#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
534 #define ecb_is_constant(expr) __builtin_constant_p (expr) 830 #define ecb_is_constant(expr) __builtin_constant_p (expr)
831#else
832 /* possible C11 impl for integral types
833 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
834 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
835
836 #define ecb_is_constant(expr) 0
837#endif
838
839#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
535 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 840 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
841#else
842 #define ecb_expect(expr,value) (expr)
843#endif
844
845#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
536 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 846 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
537#else 847#else
538 #define ecb_attribute(attrlist)
539 #define ecb_is_constant(expr) 0
540 #define ecb_expect(expr,value) (expr)
541 #define ecb_prefetch(addr,rw,locality) 848 #define ecb_prefetch(addr,rw,locality)
542#endif 849#endif
543 850
851/* no emulation for ecb_decltype */
852#if ECB_CPP11
853 // older implementations might have problems with decltype(x)::type, work around it
854 template<class T> struct ecb_decltype_t { typedef T type; };
855 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
856#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
857 #define ecb_decltype(x) __typeof__ (x)
858#endif
859
860#if _MSC_VER >= 1300
861 #define ecb_deprecated __declspec (deprecated)
862#else
863 #define ecb_deprecated ecb_attribute ((__deprecated__))
864#endif
865
866#if _MSC_VER >= 1500
867 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
868#elif ECB_GCC_VERSION(4,5)
869 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
870#else
871 #define ecb_deprecated_message(msg) ecb_deprecated
872#endif
873
874#if _MSC_VER >= 1400
875 #define ecb_noinline __declspec (noinline)
876#else
544#define ecb_noinline ecb_attribute ((__noinline__)) 877 #define ecb_noinline ecb_attribute ((__noinline__))
545#define ecb_noreturn ecb_attribute ((__noreturn__)) 878#endif
879
546#define ecb_unused ecb_attribute ((__unused__)) 880#define ecb_unused ecb_attribute ((__unused__))
547#define ecb_const ecb_attribute ((__const__)) 881#define ecb_const ecb_attribute ((__const__))
548#define ecb_pure ecb_attribute ((__pure__)) 882#define ecb_pure ecb_attribute ((__pure__))
883
884#if ECB_C11 || __IBMC_NORETURN
885 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
886 #define ecb_noreturn _Noreturn
887#elif ECB_CPP11
888 #define ecb_noreturn [[noreturn]]
889#elif _MSC_VER >= 1200
890 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
891 #define ecb_noreturn __declspec (noreturn)
892#else
893 #define ecb_noreturn ecb_attribute ((__noreturn__))
894#endif
549 895
550#if ECB_GCC_VERSION(4,3) 896#if ECB_GCC_VERSION(4,3)
551 #define ecb_artificial ecb_attribute ((__artificial__)) 897 #define ecb_artificial ecb_attribute ((__artificial__))
552 #define ecb_hot ecb_attribute ((__hot__)) 898 #define ecb_hot ecb_attribute ((__hot__))
553 #define ecb_cold ecb_attribute ((__cold__)) 899 #define ecb_cold ecb_attribute ((__cold__))
… …
560/* put around conditional expressions if you are very sure that the */ 906/* put around conditional expressions if you are very sure that the */
561/* expression is mostly true or mostly false. note that these return */ 907/* expression is mostly true or mostly false. note that these return */
562/* booleans, not the expression. */ 908/* booleans, not the expression. */
563#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) 909#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
564#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) 910#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
565/* ecb.h end */ 911/* for compatibility to the rest of the world */
912#define ecb_likely(expr) ecb_expect_true (expr)
913#define ecb_unlikely(expr) ecb_expect_false (expr)
914
915/* count trailing zero bits and count # of one bits */
916#if ECB_GCC_VERSION(3,4) \
917 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
918 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
919 && ECB_CLANG_BUILTIN(__builtin_popcount))
920 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
921 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
922 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
923 #define ecb_ctz32(x) __builtin_ctz (x)
924 #define ecb_ctz64(x) __builtin_ctzll (x)
925 #define ecb_popcount32(x) __builtin_popcount (x)
926 /* no popcountll */
927#else
928 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
929 ecb_function_ ecb_const int
930 ecb_ctz32 (uint32_t x)
931 {
932#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
933 unsigned long r;
934 _BitScanForward (&r, x);
935 return (int)r;
936#else
937 int r = 0;
938
939 x &= ~x + 1; /* this isolates the lowest bit */
940
941#if ECB_branchless_on_i386
942 r += !!(x & 0xaaaaaaaa) << 0;
943 r += !!(x & 0xcccccccc) << 1;
944 r += !!(x & 0xf0f0f0f0) << 2;
945 r += !!(x & 0xff00ff00) << 3;
946 r += !!(x & 0xffff0000) << 4;
947#else
948 if (x & 0xaaaaaaaa) r += 1;
949 if (x & 0xcccccccc) r += 2;
950 if (x & 0xf0f0f0f0) r += 4;
951 if (x & 0xff00ff00) r += 8;
952 if (x & 0xffff0000) r += 16;
953#endif
954
955 return r;
956#endif
957 }
958
959 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
960 ecb_function_ ecb_const int
961 ecb_ctz64 (uint64_t x)
962 {
963#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
964 unsigned long r;
965 _BitScanForward64 (&r, x);
966 return (int)r;
967#else
968 int shift = x & 0xffffffff ? 0 : 32;
969 return ecb_ctz32 (x >> shift) + shift;
970#endif
971 }
972
973 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
974 ecb_function_ ecb_const int
975 ecb_popcount32 (uint32_t x)
976 {
977 x -= (x >> 1) & 0x55555555;
978 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
979 x = ((x >> 4) + x) & 0x0f0f0f0f;
980 x *= 0x01010101;
981
982 return x >> 24;
983 }
984
985 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
986 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
987 {
988#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
989 unsigned long r;
990 _BitScanReverse (&r, x);
991 return (int)r;
992#else
993 int r = 0;
994
995 if (x >> 16) { x >>= 16; r += 16; }
996 if (x >> 8) { x >>= 8; r += 8; }
997 if (x >> 4) { x >>= 4; r += 4; }
998 if (x >> 2) { x >>= 2; r += 2; }
999 if (x >> 1) { r += 1; }
1000
1001 return r;
1002#endif
1003 }
1004
1005 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
1006 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
1007 {
1008#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1009 unsigned long r;
1010 _BitScanReverse64 (&r, x);
1011 return (int)r;
1012#else
1013 int r = 0;
1014
1015 if (x >> 32) { x >>= 32; r += 32; }
1016
1017 return r + ecb_ld32 (x);
1018#endif
1019 }
1020#endif
1021
1022ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1023ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1024ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1025ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1026
1027ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
1028ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
1029{
1030 return ( (x * 0x0802U & 0x22110U)
1031 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
1032}
1033
1034ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
1035ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
1036{
1037 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
1038 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
1039 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
1040 x = ( x >> 8 ) | ( x << 8);
1041
1042 return x;
1043}
1044
1045ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
1046ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
1047{
1048 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
1049 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
1050 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
1051 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
1052 x = ( x >> 16 ) | ( x << 16);
1053
1054 return x;
1055}
1056
1057/* popcount64 is only available on 64 bit cpus as gcc builtin */
1058/* so for this version we are lazy */
1059ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
1060ecb_function_ ecb_const int
1061ecb_popcount64 (uint64_t x)
1062{
1063 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
1064}
1065
1066ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
1067ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
1068ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
1069ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
1070ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
1071ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
1072ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
1073ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
1074
1075ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
1076ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
1077ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
1078ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1079ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1080ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1081ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1082ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1083
1084#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1085 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1086 #define ecb_bswap16(x) __builtin_bswap16 (x)
1087 #else
1088 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1089 #endif
1090 #define ecb_bswap32(x) __builtin_bswap32 (x)
1091 #define ecb_bswap64(x) __builtin_bswap64 (x)
1092#elif _MSC_VER
1093 #include <stdlib.h>
1094 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1095 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1096 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1097#else
1098 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1099 ecb_function_ ecb_const uint16_t
1100 ecb_bswap16 (uint16_t x)
1101 {
1102 return ecb_rotl16 (x, 8);
1103 }
1104
1105 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1106 ecb_function_ ecb_const uint32_t
1107 ecb_bswap32 (uint32_t x)
1108 {
1109 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1110 }
1111
1112 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1113 ecb_function_ ecb_const uint64_t
1114 ecb_bswap64 (uint64_t x)
1115 {
1116 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1117 }
1118#endif
1119
1120#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1121 #define ecb_unreachable() __builtin_unreachable ()
1122#else
1123 /* this seems to work fine, but gcc always emits a warning for it :/ */
1124 ecb_inline ecb_noreturn void ecb_unreachable (void);
1125 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1126#endif
1127
1128/* try to tell the compiler that some condition is definitely true */
1129#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1130
1131ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1132ecb_inline ecb_const uint32_t
1133ecb_byteorder_helper (void)
1134{
1135 /* the union code still generates code under pressure in gcc, */
1136 /* but less than using pointers, and always seems to */
1137 /* successfully return a constant. */
1138 /* the reason why we have this horrible preprocessor mess */
1139 /* is to avoid it in all cases, at least on common architectures */
1140 /* or when using a recent enough gcc version (>= 4.6) */
1141#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1142 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1143 #define ECB_LITTLE_ENDIAN 1
1144 return 0x44332211;
1145#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1146 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1147 #define ECB_BIG_ENDIAN 1
1148 return 0x11223344;
1149#else
1150 union
1151 {
1152 uint8_t c[4];
1153 uint32_t u;
1154 } u = { 0x11, 0x22, 0x33, 0x44 };
1155 return u.u;
1156#endif
1157}
1158
1159ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1160ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1161ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1162ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1163
1164#if ECB_GCC_VERSION(3,0) || ECB_C99
1165 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1166#else
1167 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1168#endif
1169
1170#if ECB_CPP
1171 template<typename T>
1172 static inline T ecb_div_rd (T val, T div)
1173 {
1174 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1175 }
1176 template<typename T>
1177 static inline T ecb_div_ru (T val, T div)
1178 {
1179 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1180 }
1181#else
1182 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1183 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1184#endif
1185
1186#if ecb_cplusplus_does_not_suck
1187 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1188 template<typename T, int N>
1189 static inline int ecb_array_length (const T (&arr)[N])
1190 {
1191 return N;
1192 }
1193#else
1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1195#endif
1196
1197ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1198ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x)
1200{
1201 unsigned int s = (x & 0x8000) << (31 - 15);
1202 int e = (x >> 10) & 0x001f;
1203 unsigned int m = x & 0x03ff;
1204
1205 if (ecb_expect_false (e == 31))
1206 /* infinity or NaN */
1207 e = 255 - (127 - 15);
1208 else if (ecb_expect_false (!e))
1209 {
1210 if (ecb_expect_true (!m))
1211 /* zero, handled by code below by forcing e to 0 */
1212 e = 0 - (127 - 15);
1213 else
1214 {
1215 /* subnormal, renormalise */
1216 unsigned int s = 10 - ecb_ld32 (m);
1217
1218 m = (m << s) & 0x3ff; /* mask implicit bit */
1219 e -= s - 1;
1220 }
1221 }
1222
1223 /* e and m now are normalised, or zero, (or inf or nan) */
1224 e += 127 - 15;
1225
1226 return s | (e << 23) | (m << (23 - 10));
1227}
1228
1229ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1230ecb_function_ ecb_const uint16_t
1231ecb_binary32_to_binary16 (uint32_t x)
1232{
1233 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1234 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1235 unsigned int m = x & 0x007fffff;
1236
1237 x &= 0x7fffffff;
1238
1239 /* if it's within range of binary16 normals, use fast path */
1240 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1241 {
1242 /* mantissa round-to-even */
1243 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1244
1245 /* handle overflow */
1246 if (ecb_expect_false (m >= 0x00800000))
1247 {
1248 m >>= 1;
1249 e += 1;
1250 }
1251
1252 return s | (e << 10) | (m >> (23 - 10));
1253 }
1254
1255 /* handle large numbers and infinity */
1256 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1257 return s | 0x7c00;
1258
1259 /* handle zero, subnormals and small numbers */
1260 if (ecb_expect_true (x < 0x38800000))
1261 {
1262 /* zero */
1263 if (ecb_expect_true (!x))
1264 return s;
1265
1266 /* handle subnormals */
1267
1268 /* too small, will be zero */
1269 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1270 return s;
1271
1272 m |= 0x00800000; /* make implicit bit explicit */
1273
1274 /* very tricky - we need to round to the nearest e (+10) bit value */
1275 {
1276 unsigned int bits = 14 - e;
1277 unsigned int half = (1 << (bits - 1)) - 1;
1278 unsigned int even = (m >> bits) & 1;
1279
1280 /* if this overflows, we will end up with a normalised number */
1281 m = (m + half + even) >> bits;
1282 }
1283
1284 return s | m;
1285 }
1286
1287 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1288 m >>= 13;
1289
1290 return s | 0x7c00 | m | !m;
1291}
1292
1293/*******************************************************************************/
1294/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1295
1296/* basically, everything uses "ieee pure-endian" floating point numbers */
1297/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1298#if 0 \
1299 || __i386 || __i386__ \
1300 || ECB_GCC_AMD64 \
1301 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1302 || defined __s390__ || defined __s390x__ \
1303 || defined __mips__ \
1304 || defined __alpha__ \
1305 || defined __hppa__ \
1306 || defined __ia64__ \
1307 || defined __m68k__ \
1308 || defined __m88k__ \
1309 || defined __sh__ \
1310 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1311 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1312 || defined __aarch64__
1313 #define ECB_STDFP 1
1314 #include <string.h> /* for memcpy */
1315#else
1316 #define ECB_STDFP 0
1317#endif
1318
1319#ifndef ECB_NO_LIBM
1320
1321 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1322
1323 /* only the oldest of old doesn't have this one. solaris. */
1324 #ifdef INFINITY
1325 #define ECB_INFINITY INFINITY
1326 #else
1327 #define ECB_INFINITY HUGE_VAL
1328 #endif
1329
1330 #ifdef NAN
1331 #define ECB_NAN NAN
1332 #else
1333 #define ECB_NAN ECB_INFINITY
1334 #endif
1335
1336 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1337 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1338 #define ecb_frexpf(x,e) frexpf ((x), (e))
1339 #else
1340 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1341 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1342 #endif
1343
1344 /* convert a float to ieee single/binary32 */
1345 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1346 ecb_function_ ecb_const uint32_t
1347 ecb_float_to_binary32 (float x)
1348 {
1349 uint32_t r;
1350
1351 #if ECB_STDFP
1352 memcpy (&r, &x, 4);
1353 #else
1354 /* slow emulation, works for anything but -0 */
1355 uint32_t m;
1356 int e;
1357
1358 if (x == 0e0f ) return 0x00000000U;
1359 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1360 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1361 if (x != x ) return 0x7fbfffffU;
1362
1363 m = ecb_frexpf (x, &e) * 0x1000000U;
1364
1365 r = m & 0x80000000U;
1366
1367 if (r)
1368 m = -m;
1369
1370 if (e <= -126)
1371 {
1372 m &= 0xffffffU;
1373 m >>= (-125 - e);
1374 e = -126;
1375 }
1376
1377 r |= (e + 126) << 23;
1378 r |= m & 0x7fffffU;
1379 #endif
1380
1381 return r;
1382 }
1383
1384 /* converts an ieee single/binary32 to a float */
1385 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1386 ecb_function_ ecb_const float
1387 ecb_binary32_to_float (uint32_t x)
1388 {
1389 float r;
1390
1391 #if ECB_STDFP
1392 memcpy (&r, &x, 4);
1393 #else
1394 /* emulation, only works for normals and subnormals and +0 */
1395 int neg = x >> 31;
1396 int e = (x >> 23) & 0xffU;
1397
1398 x &= 0x7fffffU;
1399
1400 if (e)
1401 x |= 0x800000U;
1402 else
1403 e = 1;
1404
1405 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1406 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1407
1408 r = neg ? -r : r;
1409 #endif
1410
1411 return r;
1412 }
1413
1414 /* convert a double to ieee double/binary64 */
1415 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1416 ecb_function_ ecb_const uint64_t
1417 ecb_double_to_binary64 (double x)
1418 {
1419 uint64_t r;
1420
1421 #if ECB_STDFP
1422 memcpy (&r, &x, 8);
1423 #else
1424 /* slow emulation, works for anything but -0 */
1425 uint64_t m;
1426 int e;
1427
1428 if (x == 0e0 ) return 0x0000000000000000U;
1429 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1430 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1431 if (x != x ) return 0X7ff7ffffffffffffU;
1432
1433 m = frexp (x, &e) * 0x20000000000000U;
1434
1435 r = m & 0x8000000000000000;;
1436
1437 if (r)
1438 m = -m;
1439
1440 if (e <= -1022)
1441 {
1442 m &= 0x1fffffffffffffU;
1443 m >>= (-1021 - e);
1444 e = -1022;
1445 }
1446
1447 r |= ((uint64_t)(e + 1022)) << 52;
1448 r |= m & 0xfffffffffffffU;
1449 #endif
1450
1451 return r;
1452 }
1453
1454 /* converts an ieee double/binary64 to a double */
1455 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1456 ecb_function_ ecb_const double
1457 ecb_binary64_to_double (uint64_t x)
1458 {
1459 double r;
1460
1461 #if ECB_STDFP
1462 memcpy (&r, &x, 8);
1463 #else
1464 /* emulation, only works for normals and subnormals and +0 */
1465 int neg = x >> 63;
1466 int e = (x >> 52) & 0x7ffU;
1467
1468 x &= 0xfffffffffffffU;
1469
1470 if (e)
1471 x |= 0x10000000000000U;
1472 else
1473 e = 1;
1474
1475 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1476 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1477
1478 r = neg ? -r : r;
1479 #endif
1480
1481 return r;
1482 }
1483
1484 /* convert a float to ieee half/binary16 */
1485 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1486 ecb_function_ ecb_const uint16_t
1487 ecb_float_to_binary16 (float x)
1488 {
1489 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1490 }
1491
1492 /* convert an ieee half/binary16 to float */
1493 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1494 ecb_function_ ecb_const float
1495 ecb_binary16_to_float (uint16_t x)
1496 {
1497 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1498 }
1499
1500#endif
1501
1502#endif
1503
1504/* ECB.H END */
1505
1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1507/* if your architecture doesn't need memory fences, e.g. because it is
1508 * single-cpu/core, or if you use libev in a project that doesn't use libev
1509 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1510 * libev, in which cases the memory fences become nops.
1511 * alternatively, you can remove this #error and link against libpthread,
1512 * which will then provide the memory fences.
1513 */
1514# error "memory fences not defined for your architecture, please report"
1515#endif
1516
1517#ifndef ECB_MEMORY_FENCE
1518# define ECB_MEMORY_FENCE do { } while (0)
1519# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1521#endif
566 1522
567#define expect_false(cond) ecb_expect_false (cond) 1523#define expect_false(cond) ecb_expect_false (cond)
568#define expect_true(cond) ecb_expect_true (cond) 1524#define expect_true(cond) ecb_expect_true (cond)
569#define noinline ecb_noinline 1525#define noinline ecb_noinline
570 1526
571#define inline_size ecb_inline 1527#define inline_size ecb_inline
572 1528
573#if EV_FEATURE_CODE 1529#if EV_FEATURE_CODE
574# define inline_speed ecb_inline 1530# define inline_speed ecb_inline
575#else 1531#else
576# define inline_speed static noinline 1532# define inline_speed noinline static
577#endif 1533#endif
578 1534
579#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
580 1536
581#if EV_MINPRI == EV_MAXPRI 1537#if EV_MINPRI == EV_MAXPRI
… …
628#else 1584#else
629 1585
630#include <float.h> 1586#include <float.h>
631 1587
632/* a floor() replacement function, should be independent of ev_tstamp type */ 1588/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline
633static ev_tstamp noinline 1590static ev_tstamp
634ev_floor (ev_tstamp v) 1591ev_floor (ev_tstamp v)
635{ 1592{
636 /* the choice of shift factor is not terribly important */ 1593 /* the choice of shift factor is not terribly important */
637#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
638 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
670 1627
671#ifdef __linux 1628#ifdef __linux
672# include <sys/utsname.h> 1629# include <sys/utsname.h>
673#endif 1630#endif
674 1631
675static unsigned int noinline ecb_cold 1632noinline ecb_cold
1633static unsigned int
676ev_linux_version (void) 1634ev_linux_version (void)
677{ 1635{
678#ifdef __linux 1636#ifdef __linux
679 unsigned int v = 0; 1637 unsigned int v = 0;
680 struct utsname buf; 1638 struct utsname buf;
… …
709} 1667}
710 1668
711/*****************************************************************************/ 1669/*****************************************************************************/
712 1670
713#if EV_AVOID_STDIO 1671#if EV_AVOID_STDIO
714static void noinline ecb_cold 1672noinline ecb_cold
1673static void
715ev_printerr (const char *msg) 1674ev_printerr (const char *msg)
716{ 1675{
717 write (STDERR_FILENO, msg, strlen (msg)); 1676 write (STDERR_FILENO, msg, strlen (msg));
718} 1677}
719#endif 1678#endif
720 1679
721static void (*syserr_cb)(const char *msg); 1680static void (*syserr_cb)(const char *msg) EV_THROW;
722 1681
723void ecb_cold 1682ecb_cold
1683void
724ev_set_syserr_cb (void (*cb)(const char *msg)) 1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
725{ 1685{
726 syserr_cb = cb; 1686 syserr_cb = cb;
727} 1687}
728 1688
729static void noinline ecb_cold 1689noinline ecb_cold
1690static void
730ev_syserr (const char *msg) 1691ev_syserr (const char *msg)
731{ 1692{
732 if (!msg) 1693 if (!msg)
733 msg = "(libev) system error"; 1694 msg = "(libev) system error";
734 1695
… …
747 abort (); 1708 abort ();
748 } 1709 }
749} 1710}
750 1711
751static void * 1712static void *
752ev_realloc_emul (void *ptr, long size) 1713ev_realloc_emul (void *ptr, long size) EV_THROW
753{ 1714{
754#if __GLIBC__
755 return realloc (ptr, size);
756#else
757 /* some systems, notably openbsd and darwin, fail to properly 1715 /* some systems, notably openbsd and darwin, fail to properly
758 * implement realloc (x, 0) (as required by both ansi c-89 and 1716 * implement realloc (x, 0) (as required by both ansi c-89 and
759 * the single unix specification, so work around them here. 1717 * the single unix specification, so work around them here.
1718 * recently, also (at least) fedora and debian started breaking it,
1719 * despite documenting it otherwise.
760 */ 1720 */
761 1721
762 if (size) 1722 if (size)
763 return realloc (ptr, size); 1723 return realloc (ptr, size);
764 1724
765 free (ptr); 1725 free (ptr);
766 return 0; 1726 return 0;
767#endif
768} 1727}
769 1728
770static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
771 1730
772void ecb_cold 1731ecb_cold
1732void
773ev_set_allocator (void *(*cb)(void *ptr, long size)) 1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
774{ 1734{
775 alloc = cb; 1735 alloc = cb;
776} 1736}
777 1737
778inline_speed void * 1738inline_speed void *
… …
866 #undef VAR 1826 #undef VAR
867 }; 1827 };
868 #include "ev_wrap.h" 1828 #include "ev_wrap.h"
869 1829
870 static struct ev_loop default_loop_struct; 1830 static struct ev_loop default_loop_struct;
871 struct ev_loop *ev_default_loop_ptr; 1831 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
872 1832
873#else 1833#else
874 1834
875 ev_tstamp ev_rt_now; 1835 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
876 #define VAR(name,decl) static decl; 1836 #define VAR(name,decl) static decl;
877 #include "ev_vars.h" 1837 #include "ev_vars.h"
878 #undef VAR 1838 #undef VAR
879 1839
880 static int ev_default_loop_ptr; 1840 static int ev_default_loop_ptr;
… …
895 1855
896/*****************************************************************************/ 1856/*****************************************************************************/
897 1857
898#ifndef EV_HAVE_EV_TIME 1858#ifndef EV_HAVE_EV_TIME
899ev_tstamp 1859ev_tstamp
900ev_time (void) 1860ev_time (void) EV_THROW
901{ 1861{
902#if EV_USE_REALTIME 1862#if EV_USE_REALTIME
903 if (expect_true (have_realtime)) 1863 if (expect_true (have_realtime))
904 { 1864 {
905 struct timespec ts; 1865 struct timespec ts;
… …
929 return ev_time (); 1889 return ev_time ();
930} 1890}
931 1891
932#if EV_MULTIPLICITY 1892#if EV_MULTIPLICITY
933ev_tstamp 1893ev_tstamp
934ev_now (EV_P) 1894ev_now (EV_P) EV_THROW
935{ 1895{
936 return ev_rt_now; 1896 return ev_rt_now;
937} 1897}
938#endif 1898#endif
939 1899
940void 1900void
941ev_sleep (ev_tstamp delay) 1901ev_sleep (ev_tstamp delay) EV_THROW
942{ 1902{
943 if (delay > 0.) 1903 if (delay > 0.)
944 { 1904 {
945#if EV_USE_NANOSLEEP 1905#if EV_USE_NANOSLEEP
946 struct timespec ts; 1906 struct timespec ts;
947 1907
948 EV_TS_SET (ts, delay); 1908 EV_TS_SET (ts, delay);
949 nanosleep (&ts, 0); 1909 nanosleep (&ts, 0);
950#elif defined(_WIN32) 1910#elif defined _WIN32
951 Sleep ((unsigned long)(delay * 1e3)); 1911 Sleep ((unsigned long)(delay * 1e3));
952#else 1912#else
953 struct timeval tv; 1913 struct timeval tv;
954 1914
955 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1915 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
974 1934
975 do 1935 do
976 ncur <<= 1; 1936 ncur <<= 1;
977 while (cnt > ncur); 1937 while (cnt > ncur);
978 1938
979 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1939 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
980 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1940 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
981 { 1941 {
982 ncur *= elem; 1942 ncur *= elem;
983 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1943 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
984 ncur = ncur - sizeof (void *) * 4; 1944 ncur = ncur - sizeof (void *) * 4;
… …
986 } 1946 }
987 1947
988 return ncur; 1948 return ncur;
989} 1949}
990 1950
991static void * noinline ecb_cold 1951noinline ecb_cold
1952static void *
992array_realloc (int elem, void *base, int *cur, int cnt) 1953array_realloc (int elem, void *base, int *cur, int cnt)
993{ 1954{
994 *cur = array_nextsize (elem, *cur, cnt); 1955 *cur = array_nextsize (elem, *cur, cnt);
995 return ev_realloc (base, elem * *cur); 1956 return ev_realloc (base, elem * *cur);
996} 1957}
… …
999 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1960 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1000 1961
1001#define array_needsize(type,base,cur,cnt,init) \ 1962#define array_needsize(type,base,cur,cnt,init) \
1002 if (expect_false ((cnt) > (cur))) \ 1963 if (expect_false ((cnt) > (cur))) \
1003 { \ 1964 { \
1004 int ecb_unused ocur_ = (cur); \ 1965 ecb_unused int ocur_ = (cur); \
1005 (base) = (type *)array_realloc \ 1966 (base) = (type *)array_realloc \
1006 (sizeof (type), (base), &(cur), (cnt)); \ 1967 (sizeof (type), (base), &(cur), (cnt)); \
1007 init ((base) + (ocur_), (cur) - ocur_); \ 1968 init ((base) + (ocur_), (cur) - ocur_); \
1008 } 1969 }
1009 1970
… …
1021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1982 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1022 1983
1023/*****************************************************************************/ 1984/*****************************************************************************/
1024 1985
1025/* dummy callback for pending events */ 1986/* dummy callback for pending events */
1026static void noinline 1987noinline
1988static void
1027pendingcb (EV_P_ ev_prepare *w, int revents) 1989pendingcb (EV_P_ ev_prepare *w, int revents)
1028{ 1990{
1029} 1991}
1030 1992
1031void noinline 1993noinline
1994void
1032ev_feed_event (EV_P_ void *w, int revents) 1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1033{ 1996{
1034 W w_ = (W)w; 1997 W w_ = (W)w;
1035 int pri = ABSPRI (w_); 1998 int pri = ABSPRI (w_);
1036 1999
1037 if (expect_false (w_->pending)) 2000 if (expect_false (w_->pending))
… …
1041 w_->pending = ++pendingcnt [pri]; 2004 w_->pending = ++pendingcnt [pri];
1042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2005 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1043 pendings [pri][w_->pending - 1].w = w_; 2006 pendings [pri][w_->pending - 1].w = w_;
1044 pendings [pri][w_->pending - 1].events = revents; 2007 pendings [pri][w_->pending - 1].events = revents;
1045 } 2008 }
2009
2010 pendingpri = NUMPRI - 1;
1046} 2011}
1047 2012
1048inline_speed void 2013inline_speed void
1049feed_reverse (EV_P_ W w) 2014feed_reverse (EV_P_ W w)
1050{ 2015{
… …
1096 if (expect_true (!anfd->reify)) 2061 if (expect_true (!anfd->reify))
1097 fd_event_nocheck (EV_A_ fd, revents); 2062 fd_event_nocheck (EV_A_ fd, revents);
1098} 2063}
1099 2064
1100void 2065void
1101ev_feed_fd_event (EV_P_ int fd, int revents) 2066ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1102{ 2067{
1103 if (fd >= 0 && fd < anfdmax) 2068 if (fd >= 0 && fd < anfdmax)
1104 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1105} 2070}
1106 2071
… …
1164 2129
1165 fdchangecnt = 0; 2130 fdchangecnt = 0;
1166} 2131}
1167 2132
1168/* something about the given fd changed */ 2133/* something about the given fd changed */
1169inline_size void 2134inline_size
2135void
1170fd_change (EV_P_ int fd, int flags) 2136fd_change (EV_P_ int fd, int flags)
1171{ 2137{
1172 unsigned char reify = anfds [fd].reify; 2138 unsigned char reify = anfds [fd].reify;
1173 anfds [fd].reify |= flags; 2139 anfds [fd].reify |= flags;
1174 2140
… …
1179 fdchanges [fdchangecnt - 1] = fd; 2145 fdchanges [fdchangecnt - 1] = fd;
1180 } 2146 }
1181} 2147}
1182 2148
1183/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2149/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1184inline_speed void ecb_cold 2150inline_speed ecb_cold void
1185fd_kill (EV_P_ int fd) 2151fd_kill (EV_P_ int fd)
1186{ 2152{
1187 ev_io *w; 2153 ev_io *w;
1188 2154
1189 while ((w = (ev_io *)anfds [fd].head)) 2155 while ((w = (ev_io *)anfds [fd].head))
… …
1192 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2158 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1193 } 2159 }
1194} 2160}
1195 2161
1196/* check whether the given fd is actually valid, for error recovery */ 2162/* check whether the given fd is actually valid, for error recovery */
1197inline_size int ecb_cold 2163inline_size ecb_cold int
1198fd_valid (int fd) 2164fd_valid (int fd)
1199{ 2165{
1200#ifdef _WIN32 2166#ifdef _WIN32
1201 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2167 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1202#else 2168#else
1203 return fcntl (fd, F_GETFD) != -1; 2169 return fcntl (fd, F_GETFD) != -1;
1204#endif 2170#endif
1205} 2171}
1206 2172
1207/* called on EBADF to verify fds */ 2173/* called on EBADF to verify fds */
1208static void noinline ecb_cold 2174noinline ecb_cold
2175static void
1209fd_ebadf (EV_P) 2176fd_ebadf (EV_P)
1210{ 2177{
1211 int fd; 2178 int fd;
1212 2179
1213 for (fd = 0; fd < anfdmax; ++fd) 2180 for (fd = 0; fd < anfdmax; ++fd)
… …
1215 if (!fd_valid (fd) && errno == EBADF) 2182 if (!fd_valid (fd) && errno == EBADF)
1216 fd_kill (EV_A_ fd); 2183 fd_kill (EV_A_ fd);
1217} 2184}
1218 2185
1219/* called on ENOMEM in select/poll to kill some fds and retry */ 2186/* called on ENOMEM in select/poll to kill some fds and retry */
1220static void noinline ecb_cold 2187noinline ecb_cold
2188static void
1221fd_enomem (EV_P) 2189fd_enomem (EV_P)
1222{ 2190{
1223 int fd; 2191 int fd;
1224 2192
1225 for (fd = anfdmax; fd--; ) 2193 for (fd = anfdmax; fd--; )
… …
1229 break; 2197 break;
1230 } 2198 }
1231} 2199}
1232 2200
1233/* usually called after fork if backend needs to re-arm all fds from scratch */ 2201/* usually called after fork if backend needs to re-arm all fds from scratch */
1234static void noinline 2202noinline
2203static void
1235fd_rearm_all (EV_P) 2204fd_rearm_all (EV_P)
1236{ 2205{
1237 int fd; 2206 int fd;
1238 2207
1239 for (fd = 0; fd < anfdmax; ++fd) 2208 for (fd = 0; fd < anfdmax; ++fd)
… …
1420 2389
1421/*****************************************************************************/ 2390/*****************************************************************************/
1422 2391
1423#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1424 2393
1425static void noinline ecb_cold 2394noinline ecb_cold
2395static void
1426evpipe_init (EV_P) 2396evpipe_init (EV_P)
1427{ 2397{
1428 if (!ev_is_active (&pipe_w)) 2398 if (!ev_is_active (&pipe_w))
1429 { 2399 {
2400 int fds [2];
2401
1430# if EV_USE_EVENTFD 2402# if EV_USE_EVENTFD
2403 fds [0] = -1;
1431 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2404 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1432 if (evfd < 0 && errno == EINVAL) 2405 if (fds [1] < 0 && errno == EINVAL)
1433 evfd = eventfd (0, 0); 2406 fds [1] = eventfd (0, 0);
1434 2407
1435 if (evfd >= 0) 2408 if (fds [1] < 0)
2409# endif
1436 { 2410 {
2411 while (pipe (fds))
2412 ev_syserr ("(libev) error creating signal/async pipe");
2413
2414 fd_intern (fds [0]);
2415 }
2416
1437 evpipe [0] = -1; 2417 evpipe [0] = fds [0];
1438 fd_intern (evfd); /* doing it twice doesn't hurt */ 2418
1439 ev_io_set (&pipe_w, evfd, EV_READ); 2419 if (evpipe [1] < 0)
2420 evpipe [1] = fds [1]; /* first call, set write fd */
2421 else
2422 {
2423 /* on subsequent calls, do not change evpipe [1] */
2424 /* so that evpipe_write can always rely on its value. */
2425 /* this branch does not do anything sensible on windows, */
2426 /* so must not be executed on windows */
2427
2428 dup2 (fds [1], evpipe [1]);
2429 close (fds [1]);
2430 }
2431
2432 fd_intern (evpipe [1]);
2433
2434 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2435 ev_io_start (EV_A_ &pipe_w);
2436 ev_unref (EV_A); /* watcher should not keep loop alive */
2437 }
2438}
2439
2440inline_speed void
2441evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2442{
2443 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2444
2445 if (expect_true (*flag))
2446 return;
2447
2448 *flag = 1;
2449 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2450
2451 pipe_write_skipped = 1;
2452
2453 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2454
2455 if (pipe_write_wanted)
2456 {
2457 int old_errno;
2458
2459 pipe_write_skipped = 0;
2460 ECB_MEMORY_FENCE_RELEASE;
2461
2462 old_errno = errno; /* save errno because write will clobber it */
2463
2464#if EV_USE_EVENTFD
2465 if (evpipe [0] < 0)
2466 {
2467 uint64_t counter = 1;
2468 write (evpipe [1], &counter, sizeof (uint64_t));
1440 } 2469 }
1441 else 2470 else
1442# endif 2471#endif
1443 { 2472 {
1444 while (pipe (evpipe)) 2473#ifdef _WIN32
1445 ev_syserr ("(libev) error creating signal/async pipe"); 2474 WSABUF buf;
1446 2475 DWORD sent;
1447 fd_intern (evpipe [0]); 2476 buf.buf = &buf;
1448 fd_intern (evpipe [1]); 2477 buf.len = 1;
1449 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2478 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1450 } 2479#else
1451
1452 ev_io_start (EV_A_ &pipe_w);
1453 ev_unref (EV_A); /* watcher should not keep loop alive */
1454 }
1455}
1456
1457inline_speed void
1458evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1459{
1460 if (expect_true (*flag))
1461 return;
1462
1463 *flag = 1;
1464
1465 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1466
1467 pipe_write_skipped = 1;
1468
1469 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1470
1471 if (pipe_write_wanted)
1472 {
1473 int old_errno;
1474
1475 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1476
1477 old_errno = errno; /* save errno because write will clobber it */
1478
1479#if EV_USE_EVENTFD
1480 if (evfd >= 0)
1481 {
1482 uint64_t counter = 1;
1483 write (evfd, &counter, sizeof (uint64_t));
1484 }
1485 else
1486#endif
1487 {
1488 /* win32 people keep sending patches that change this write() to send() */
1489 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1490 /* so when you think this write should be a send instead, please find out */
1491 /* where your send() is from - it's definitely not the microsoft send, and */
1492 /* tell me. thank you. */
1493 write (evpipe [1], &(evpipe [1]), 1); 2480 write (evpipe [1], &(evpipe [1]), 1);
2481#endif
1494 } 2482 }
1495 2483
1496 errno = old_errno; 2484 errno = old_errno;
1497 } 2485 }
1498} 2486}
… …
1505 int i; 2493 int i;
1506 2494
1507 if (revents & EV_READ) 2495 if (revents & EV_READ)
1508 { 2496 {
1509#if EV_USE_EVENTFD 2497#if EV_USE_EVENTFD
1510 if (evfd >= 0) 2498 if (evpipe [0] < 0)
1511 { 2499 {
1512 uint64_t counter; 2500 uint64_t counter;
1513 read (evfd, &counter, sizeof (uint64_t)); 2501 read (evpipe [1], &counter, sizeof (uint64_t));
1514 } 2502 }
1515 else 2503 else
1516#endif 2504#endif
1517 { 2505 {
1518 char dummy; 2506 char dummy[4];
1519 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2507#ifdef _WIN32
2508 WSABUF buf;
2509 DWORD recvd;
2510 DWORD flags = 0;
2511 buf.buf = dummy;
2512 buf.len = sizeof (dummy);
2513 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2514#else
1520 read (evpipe [0], &dummy, 1); 2515 read (evpipe [0], &dummy, sizeof (dummy));
2516#endif
1521 } 2517 }
1522 } 2518 }
1523 2519
1524 pipe_write_skipped = 0; 2520 pipe_write_skipped = 0;
2521
2522 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1525 2523
1526#if EV_SIGNAL_ENABLE 2524#if EV_SIGNAL_ENABLE
1527 if (sig_pending) 2525 if (sig_pending)
1528 { 2526 {
1529 sig_pending = 0; 2527 sig_pending = 0;
2528
2529 ECB_MEMORY_FENCE;
1530 2530
1531 for (i = EV_NSIG - 1; i--; ) 2531 for (i = EV_NSIG - 1; i--; )
1532 if (expect_false (signals [i].pending)) 2532 if (expect_false (signals [i].pending))
1533 ev_feed_signal_event (EV_A_ i + 1); 2533 ev_feed_signal_event (EV_A_ i + 1);
1534 } 2534 }
… …
1536 2536
1537#if EV_ASYNC_ENABLE 2537#if EV_ASYNC_ENABLE
1538 if (async_pending) 2538 if (async_pending)
1539 { 2539 {
1540 async_pending = 0; 2540 async_pending = 0;
2541
2542 ECB_MEMORY_FENCE;
1541 2543
1542 for (i = asynccnt; i--; ) 2544 for (i = asynccnt; i--; )
1543 if (asyncs [i]->sent) 2545 if (asyncs [i]->sent)
1544 { 2546 {
1545 asyncs [i]->sent = 0; 2547 asyncs [i]->sent = 0;
2548 ECB_MEMORY_FENCE_RELEASE;
1546 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2549 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1547 } 2550 }
1548 } 2551 }
1549#endif 2552#endif
1550} 2553}
1551 2554
1552/*****************************************************************************/ 2555/*****************************************************************************/
1553 2556
1554void 2557void
1555ev_feed_signal (int signum) 2558ev_feed_signal (int signum) EV_THROW
1556{ 2559{
1557#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
2561 EV_P;
2562 ECB_MEMORY_FENCE_ACQUIRE;
1558 EV_P = signals [signum - 1].loop; 2563 EV_A = signals [signum - 1].loop;
1559 2564
1560 if (!EV_A) 2565 if (!EV_A)
1561 return; 2566 return;
1562#endif 2567#endif
1563 2568
1564 if (!ev_active (&pipe_w))
1565 return;
1566
1567 signals [signum - 1].pending = 1; 2569 signals [signum - 1].pending = 1;
1568 evpipe_write (EV_A_ &sig_pending); 2570 evpipe_write (EV_A_ &sig_pending);
1569} 2571}
1570 2572
1571static void 2573static void
… …
1576#endif 2578#endif
1577 2579
1578 ev_feed_signal (signum); 2580 ev_feed_signal (signum);
1579} 2581}
1580 2582
1581void noinline 2583noinline
2584void
1582ev_feed_signal_event (EV_P_ int signum) 2585ev_feed_signal_event (EV_P_ int signum) EV_THROW
1583{ 2586{
1584 WL w; 2587 WL w;
1585 2588
1586 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2589 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1587 return; 2590 return;
1588 2591
1589 --signum; 2592 --signum;
1590 2593
1591#if EV_MULTIPLICITY 2594#if EV_MULTIPLICITY
… …
1595 if (expect_false (signals [signum].loop != EV_A)) 2598 if (expect_false (signals [signum].loop != EV_A))
1596 return; 2599 return;
1597#endif 2600#endif
1598 2601
1599 signals [signum].pending = 0; 2602 signals [signum].pending = 0;
2603 ECB_MEMORY_FENCE_RELEASE;
1600 2604
1601 for (w = signals [signum].head; w; w = w->next) 2605 for (w = signals [signum].head; w; w = w->next)
1602 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2606 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1603} 2607}
1604 2608
… …
1702#endif 2706#endif
1703#if EV_USE_SELECT 2707#if EV_USE_SELECT
1704# include "ev_select.c" 2708# include "ev_select.c"
1705#endif 2709#endif
1706 2710
1707int ecb_cold 2711ecb_cold int
1708ev_version_major (void) 2712ev_version_major (void) EV_THROW
1709{ 2713{
1710 return EV_VERSION_MAJOR; 2714 return EV_VERSION_MAJOR;
1711} 2715}
1712 2716
1713int ecb_cold 2717ecb_cold int
1714ev_version_minor (void) 2718ev_version_minor (void) EV_THROW
1715{ 2719{
1716 return EV_VERSION_MINOR; 2720 return EV_VERSION_MINOR;
1717} 2721}
1718 2722
1719/* return true if we are running with elevated privileges and should ignore env variables */ 2723/* return true if we are running with elevated privileges and should ignore env variables */
1720int inline_size ecb_cold 2724inline_size ecb_cold int
1721enable_secure (void) 2725enable_secure (void)
1722{ 2726{
1723#ifdef _WIN32 2727#ifdef _WIN32
1724 return 0; 2728 return 0;
1725#else 2729#else
1726 return getuid () != geteuid () 2730 return getuid () != geteuid ()
1727 || getgid () != getegid (); 2731 || getgid () != getegid ();
1728#endif 2732#endif
1729} 2733}
1730 2734
1731unsigned int ecb_cold 2735ecb_cold
2736unsigned int
1732ev_supported_backends (void) 2737ev_supported_backends (void) EV_THROW
1733{ 2738{
1734 unsigned int flags = 0; 2739 unsigned int flags = 0;
1735 2740
1736 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1737 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1740 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1741 2746
1742 return flags; 2747 return flags;
1743} 2748}
1744 2749
1745unsigned int ecb_cold 2750ecb_cold
2751unsigned int
1746ev_recommended_backends (void) 2752ev_recommended_backends (void) EV_THROW
1747{ 2753{
1748 unsigned int flags = ev_supported_backends (); 2754 unsigned int flags = ev_supported_backends ();
1749 2755
1750#ifndef __NetBSD__ 2756#ifndef __NetBSD__
1751 /* kqueue is borked on everything but netbsd apparently */ 2757 /* kqueue is borked on everything but netbsd apparently */
… …
1762#endif 2768#endif
1763 2769
1764 return flags; 2770 return flags;
1765} 2771}
1766 2772
1767unsigned int ecb_cold 2773ecb_cold
2774unsigned int
1768ev_embeddable_backends (void) 2775ev_embeddable_backends (void) EV_THROW
1769{ 2776{
1770 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1771 2778
1772 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2779 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1773 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2780 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1775 2782
1776 return flags; 2783 return flags;
1777} 2784}
1778 2785
1779unsigned int 2786unsigned int
1780ev_backend (EV_P) 2787ev_backend (EV_P) EV_THROW
1781{ 2788{
1782 return backend; 2789 return backend;
1783} 2790}
1784 2791
1785#if EV_FEATURE_API 2792#if EV_FEATURE_API
1786unsigned int 2793unsigned int
1787ev_iteration (EV_P) 2794ev_iteration (EV_P) EV_THROW
1788{ 2795{
1789 return loop_count; 2796 return loop_count;
1790} 2797}
1791 2798
1792unsigned int 2799unsigned int
1793ev_depth (EV_P) 2800ev_depth (EV_P) EV_THROW
1794{ 2801{
1795 return loop_depth; 2802 return loop_depth;
1796} 2803}
1797 2804
1798void 2805void
1799ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2806ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1800{ 2807{
1801 io_blocktime = interval; 2808 io_blocktime = interval;
1802} 2809}
1803 2810
1804void 2811void
1805ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2812ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1806{ 2813{
1807 timeout_blocktime = interval; 2814 timeout_blocktime = interval;
1808} 2815}
1809 2816
1810void 2817void
1811ev_set_userdata (EV_P_ void *data) 2818ev_set_userdata (EV_P_ void *data) EV_THROW
1812{ 2819{
1813 userdata = data; 2820 userdata = data;
1814} 2821}
1815 2822
1816void * 2823void *
1817ev_userdata (EV_P) 2824ev_userdata (EV_P) EV_THROW
1818{ 2825{
1819 return userdata; 2826 return userdata;
1820} 2827}
1821 2828
1822void 2829void
1823ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2830ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1824{ 2831{
1825 invoke_cb = invoke_pending_cb; 2832 invoke_cb = invoke_pending_cb;
1826} 2833}
1827 2834
1828void 2835void
1829ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2836ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1830{ 2837{
1831 release_cb = release; 2838 release_cb = release;
1832 acquire_cb = acquire; 2839 acquire_cb = acquire;
1833} 2840}
1834#endif 2841#endif
1835 2842
1836/* initialise a loop structure, must be zero-initialised */ 2843/* initialise a loop structure, must be zero-initialised */
1837static void noinline ecb_cold 2844noinline ecb_cold
2845static void
1838loop_init (EV_P_ unsigned int flags) 2846loop_init (EV_P_ unsigned int flags) EV_THROW
1839{ 2847{
1840 if (!backend) 2848 if (!backend)
1841 { 2849 {
1842 origflags = flags; 2850 origflags = flags;
1843 2851
… …
1888#if EV_ASYNC_ENABLE 2896#if EV_ASYNC_ENABLE
1889 async_pending = 0; 2897 async_pending = 0;
1890#endif 2898#endif
1891 pipe_write_skipped = 0; 2899 pipe_write_skipped = 0;
1892 pipe_write_wanted = 0; 2900 pipe_write_wanted = 0;
2901 evpipe [0] = -1;
2902 evpipe [1] = -1;
1893#if EV_USE_INOTIFY 2903#if EV_USE_INOTIFY
1894 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2904 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1895#endif 2905#endif
1896#if EV_USE_SIGNALFD 2906#if EV_USE_SIGNALFD
1897 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2907 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1927#endif 2937#endif
1928 } 2938 }
1929} 2939}
1930 2940
1931/* free up a loop structure */ 2941/* free up a loop structure */
1932void ecb_cold 2942ecb_cold
2943void
1933ev_loop_destroy (EV_P) 2944ev_loop_destroy (EV_P)
1934{ 2945{
1935 int i; 2946 int i;
1936 2947
1937#if EV_MULTIPLICITY 2948#if EV_MULTIPLICITY
… …
1948 EV_INVOKE_PENDING; 2959 EV_INVOKE_PENDING;
1949 } 2960 }
1950#endif 2961#endif
1951 2962
1952#if EV_CHILD_ENABLE 2963#if EV_CHILD_ENABLE
1953 if (ev_is_active (&childev)) 2964 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1954 { 2965 {
1955 ev_ref (EV_A); /* child watcher */ 2966 ev_ref (EV_A); /* child watcher */
1956 ev_signal_stop (EV_A_ &childev); 2967 ev_signal_stop (EV_A_ &childev);
1957 } 2968 }
1958#endif 2969#endif
… …
1960 if (ev_is_active (&pipe_w)) 2971 if (ev_is_active (&pipe_w))
1961 { 2972 {
1962 /*ev_ref (EV_A);*/ 2973 /*ev_ref (EV_A);*/
1963 /*ev_io_stop (EV_A_ &pipe_w);*/ 2974 /*ev_io_stop (EV_A_ &pipe_w);*/
1964 2975
1965#if EV_USE_EVENTFD
1966 if (evfd >= 0)
1967 close (evfd);
1968#endif
1969
1970 if (evpipe [0] >= 0)
1971 {
1972 EV_WIN32_CLOSE_FD (evpipe [0]); 2976 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1973 EV_WIN32_CLOSE_FD (evpipe [1]); 2977 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1974 }
1975 } 2978 }
1976 2979
1977#if EV_USE_SIGNALFD 2980#if EV_USE_SIGNALFD
1978 if (ev_is_active (&sigfd_w)) 2981 if (ev_is_active (&sigfd_w))
1979 close (sigfd); 2982 close (sigfd);
… …
2065#endif 3068#endif
2066#if EV_USE_INOTIFY 3069#if EV_USE_INOTIFY
2067 infy_fork (EV_A); 3070 infy_fork (EV_A);
2068#endif 3071#endif
2069 3072
3073#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2070 if (ev_is_active (&pipe_w)) 3074 if (ev_is_active (&pipe_w) && postfork != 2)
2071 { 3075 {
2072 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3076 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2073 3077
2074 ev_ref (EV_A); 3078 ev_ref (EV_A);
2075 ev_io_stop (EV_A_ &pipe_w); 3079 ev_io_stop (EV_A_ &pipe_w);
2076 3080
2077#if EV_USE_EVENTFD
2078 if (evfd >= 0)
2079 close (evfd);
2080#endif
2081
2082 if (evpipe [0] >= 0) 3081 if (evpipe [0] >= 0)
2083 {
2084 EV_WIN32_CLOSE_FD (evpipe [0]); 3082 EV_WIN32_CLOSE_FD (evpipe [0]);
2085 EV_WIN32_CLOSE_FD (evpipe [1]);
2086 }
2087 3083
2088#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2089 evpipe_init (EV_A); 3084 evpipe_init (EV_A);
2090 /* now iterate over everything, in case we missed something */ 3085 /* iterate over everything, in case we missed something before */
2091 pipecb (EV_A_ &pipe_w, EV_READ); 3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2092#endif
2093 } 3087 }
3088#endif
2094 3089
2095 postfork = 0; 3090 postfork = 0;
2096} 3091}
2097 3092
2098#if EV_MULTIPLICITY 3093#if EV_MULTIPLICITY
2099 3094
3095ecb_cold
2100struct ev_loop * ecb_cold 3096struct ev_loop *
2101ev_loop_new (unsigned int flags) 3097ev_loop_new (unsigned int flags) EV_THROW
2102{ 3098{
2103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2104 3100
2105 memset (EV_A, 0, sizeof (struct ev_loop)); 3101 memset (EV_A, 0, sizeof (struct ev_loop));
2106 loop_init (EV_A_ flags); 3102 loop_init (EV_A_ flags);
… …
2113} 3109}
2114 3110
2115#endif /* multiplicity */ 3111#endif /* multiplicity */
2116 3112
2117#if EV_VERIFY 3113#if EV_VERIFY
2118static void noinline ecb_cold 3114noinline ecb_cold
3115static void
2119verify_watcher (EV_P_ W w) 3116verify_watcher (EV_P_ W w)
2120{ 3117{
2121 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3118 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2122 3119
2123 if (w->pending) 3120 if (w->pending)
2124 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3121 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2125} 3122}
2126 3123
2127static void noinline ecb_cold 3124noinline ecb_cold
3125static void
2128verify_heap (EV_P_ ANHE *heap, int N) 3126verify_heap (EV_P_ ANHE *heap, int N)
2129{ 3127{
2130 int i; 3128 int i;
2131 3129
2132 for (i = HEAP0; i < N + HEAP0; ++i) 3130 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2137 3135
2138 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2139 } 3137 }
2140} 3138}
2141 3139
2142static void noinline ecb_cold 3140noinline ecb_cold
3141static void
2143array_verify (EV_P_ W *ws, int cnt) 3142array_verify (EV_P_ W *ws, int cnt)
2144{ 3143{
2145 while (cnt--) 3144 while (cnt--)
2146 { 3145 {
2147 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3146 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2150} 3149}
2151#endif 3150#endif
2152 3151
2153#if EV_FEATURE_API 3152#if EV_FEATURE_API
2154void ecb_cold 3153void ecb_cold
2155ev_verify (EV_P) 3154ev_verify (EV_P) EV_THROW
2156{ 3155{
2157#if EV_VERIFY 3156#if EV_VERIFY
2158 int i; 3157 int i;
2159 WL w; 3158 WL w, w2;
2160 3159
2161 assert (activecnt >= -1); 3160 assert (activecnt >= -1);
2162 3161
2163 assert (fdchangemax >= fdchangecnt); 3162 assert (fdchangemax >= fdchangecnt);
2164 for (i = 0; i < fdchangecnt; ++i) 3163 for (i = 0; i < fdchangecnt; ++i)
2165 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3164 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2166 3165
2167 assert (anfdmax >= 0); 3166 assert (anfdmax >= 0);
2168 for (i = 0; i < anfdmax; ++i) 3167 for (i = 0; i < anfdmax; ++i)
3168 {
3169 int j = 0;
3170
2169 for (w = anfds [i].head; w; w = w->next) 3171 for (w = w2 = anfds [i].head; w; w = w->next)
2170 { 3172 {
2171 verify_watcher (EV_A_ (W)w); 3173 verify_watcher (EV_A_ (W)w);
3174
3175 if (j++ & 1)
3176 {
3177 assert (("libev: io watcher list contains a loop", w != w2));
3178 w2 = w2->next;
3179 }
3180
2172 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3181 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2173 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3182 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2174 } 3183 }
3184 }
2175 3185
2176 assert (timermax >= timercnt); 3186 assert (timermax >= timercnt);
2177 verify_heap (EV_A_ timers, timercnt); 3187 verify_heap (EV_A_ timers, timercnt);
2178 3188
2179#if EV_PERIODIC_ENABLE 3189#if EV_PERIODIC_ENABLE
… …
2225#endif 3235#endif
2226} 3236}
2227#endif 3237#endif
2228 3238
2229#if EV_MULTIPLICITY 3239#if EV_MULTIPLICITY
3240ecb_cold
2230struct ev_loop * ecb_cold 3241struct ev_loop *
2231#else 3242#else
2232int 3243int
2233#endif 3244#endif
2234ev_default_loop (unsigned int flags) 3245ev_default_loop (unsigned int flags) EV_THROW
2235{ 3246{
2236 if (!ev_default_loop_ptr) 3247 if (!ev_default_loop_ptr)
2237 { 3248 {
2238#if EV_MULTIPLICITY 3249#if EV_MULTIPLICITY
2239 EV_P = ev_default_loop_ptr = &default_loop_struct; 3250 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2258 3269
2259 return ev_default_loop_ptr; 3270 return ev_default_loop_ptr;
2260} 3271}
2261 3272
2262void 3273void
2263ev_loop_fork (EV_P) 3274ev_loop_fork (EV_P) EV_THROW
2264{ 3275{
2265 postfork = 1; /* must be in line with ev_default_fork */ 3276 postfork = 1;
2266} 3277}
2267 3278
2268/*****************************************************************************/ 3279/*****************************************************************************/
2269 3280
2270void 3281void
… …
2272{ 3283{
2273 EV_CB_INVOKE ((W)w, revents); 3284 EV_CB_INVOKE ((W)w, revents);
2274} 3285}
2275 3286
2276unsigned int 3287unsigned int
2277ev_pending_count (EV_P) 3288ev_pending_count (EV_P) EV_THROW
2278{ 3289{
2279 int pri; 3290 int pri;
2280 unsigned int count = 0; 3291 unsigned int count = 0;
2281 3292
2282 for (pri = NUMPRI; pri--; ) 3293 for (pri = NUMPRI; pri--; )
2283 count += pendingcnt [pri]; 3294 count += pendingcnt [pri];
2284 3295
2285 return count; 3296 return count;
2286} 3297}
2287 3298
2288void noinline 3299noinline
3300void
2289ev_invoke_pending (EV_P) 3301ev_invoke_pending (EV_P)
2290{ 3302{
2291 int pri; 3303 pendingpri = NUMPRI;
2292 3304
2293 for (pri = NUMPRI; pri--; ) 3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3306 {
3307 --pendingpri;
3308
2294 while (pendingcnt [pri]) 3309 while (pendingcnt [pendingpri])
2295 { 3310 {
2296 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3311 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2297 3312
2298 p->w->pending = 0; 3313 p->w->pending = 0;
2299 EV_CB_INVOKE (p->w, p->events); 3314 EV_CB_INVOKE (p->w, p->events);
2300 EV_FREQUENT_CHECK; 3315 EV_FREQUENT_CHECK;
2301 } 3316 }
3317 }
2302} 3318}
2303 3319
2304#if EV_IDLE_ENABLE 3320#if EV_IDLE_ENABLE
2305/* make idle watchers pending. this handles the "call-idle */ 3321/* make idle watchers pending. this handles the "call-idle */
2306/* only when higher priorities are idle" logic */ 3322/* only when higher priorities are idle" logic */
… …
2364 } 3380 }
2365} 3381}
2366 3382
2367#if EV_PERIODIC_ENABLE 3383#if EV_PERIODIC_ENABLE
2368 3384
2369static void noinline 3385noinline
3386static void
2370periodic_recalc (EV_P_ ev_periodic *w) 3387periodic_recalc (EV_P_ ev_periodic *w)
2371{ 3388{
2372 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3389 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2373 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3390 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2374 3391
… …
2396{ 3413{
2397 EV_FREQUENT_CHECK; 3414 EV_FREQUENT_CHECK;
2398 3415
2399 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3416 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2400 { 3417 {
2401 int feed_count = 0;
2402
2403 do 3418 do
2404 { 3419 {
2405 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3420 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2406 3421
2407 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3422 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2434 } 3449 }
2435} 3450}
2436 3451
2437/* simply recalculate all periodics */ 3452/* simply recalculate all periodics */
2438/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3453/* TODO: maybe ensure that at least one event happens when jumping forward? */
2439static void noinline ecb_cold 3454noinline ecb_cold
3455static void
2440periodics_reschedule (EV_P) 3456periodics_reschedule (EV_P)
2441{ 3457{
2442 int i; 3458 int i;
2443 3459
2444 /* adjust periodics after time jump */ 3460 /* adjust periodics after time jump */
… …
2457 reheap (periodics, periodiccnt); 3473 reheap (periodics, periodiccnt);
2458} 3474}
2459#endif 3475#endif
2460 3476
2461/* adjust all timers by a given offset */ 3477/* adjust all timers by a given offset */
2462static void noinline ecb_cold 3478noinline ecb_cold
3479static void
2463timers_reschedule (EV_P_ ev_tstamp adjust) 3480timers_reschedule (EV_P_ ev_tstamp adjust)
2464{ 3481{
2465 int i; 3482 int i;
2466 3483
2467 for (i = 0; i < timercnt; ++i) 3484 for (i = 0; i < timercnt; ++i)
… …
2541 3558
2542 mn_now = ev_rt_now; 3559 mn_now = ev_rt_now;
2543 } 3560 }
2544} 3561}
2545 3562
2546void 3563int
2547ev_run (EV_P_ int flags) 3564ev_run (EV_P_ int flags)
2548{ 3565{
2549#if EV_FEATURE_API 3566#if EV_FEATURE_API
2550 ++loop_depth; 3567 ++loop_depth;
2551#endif 3568#endif
… …
2612 time_update (EV_A_ 1e100); 3629 time_update (EV_A_ 1e100);
2613 3630
2614 /* from now on, we want a pipe-wake-up */ 3631 /* from now on, we want a pipe-wake-up */
2615 pipe_write_wanted = 1; 3632 pipe_write_wanted = 1;
2616 3633
2617 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */ 3634 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2618 3635
2619 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3636 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2620 { 3637 {
2621 waittime = MAX_BLOCKTIME; 3638 waittime = MAX_BLOCKTIME;
2622 3639
… …
2664#endif 3681#endif
2665 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3682 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2666 backend_poll (EV_A_ waittime); 3683 backend_poll (EV_A_ waittime);
2667 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3684 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2668 3685
2669 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3686 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2670 3687
3688 ECB_MEMORY_FENCE_ACQUIRE;
2671 if (pipe_write_skipped) 3689 if (pipe_write_skipped)
2672 { 3690 {
2673 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3691 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2674 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3692 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2675 } 3693 }
… …
2708 loop_done = EVBREAK_CANCEL; 3726 loop_done = EVBREAK_CANCEL;
2709 3727
2710#if EV_FEATURE_API 3728#if EV_FEATURE_API
2711 --loop_depth; 3729 --loop_depth;
2712#endif 3730#endif
2713}
2714 3731
3732 return activecnt;
3733}
3734
2715void 3735void
2716ev_break (EV_P_ int how) 3736ev_break (EV_P_ int how) EV_THROW
2717{ 3737{
2718 loop_done = how; 3738 loop_done = how;
2719} 3739}
2720 3740
2721void 3741void
2722ev_ref (EV_P) 3742ev_ref (EV_P) EV_THROW
2723{ 3743{
2724 ++activecnt; 3744 ++activecnt;
2725} 3745}
2726 3746
2727void 3747void
2728ev_unref (EV_P) 3748ev_unref (EV_P) EV_THROW
2729{ 3749{
2730 --activecnt; 3750 --activecnt;
2731} 3751}
2732 3752
2733void 3753void
2734ev_now_update (EV_P) 3754ev_now_update (EV_P) EV_THROW
2735{ 3755{
2736 time_update (EV_A_ 1e100); 3756 time_update (EV_A_ 1e100);
2737} 3757}
2738 3758
2739void 3759void
2740ev_suspend (EV_P) 3760ev_suspend (EV_P) EV_THROW
2741{ 3761{
2742 ev_now_update (EV_A); 3762 ev_now_update (EV_A);
2743} 3763}
2744 3764
2745void 3765void
2746ev_resume (EV_P) 3766ev_resume (EV_P) EV_THROW
2747{ 3767{
2748 ev_tstamp mn_prev = mn_now; 3768 ev_tstamp mn_prev = mn_now;
2749 3769
2750 ev_now_update (EV_A); 3770 ev_now_update (EV_A);
2751 timers_reschedule (EV_A_ mn_now - mn_prev); 3771 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2790 w->pending = 0; 3810 w->pending = 0;
2791 } 3811 }
2792} 3812}
2793 3813
2794int 3814int
2795ev_clear_pending (EV_P_ void *w) 3815ev_clear_pending (EV_P_ void *w) EV_THROW
2796{ 3816{
2797 W w_ = (W)w; 3817 W w_ = (W)w;
2798 int pending = w_->pending; 3818 int pending = w_->pending;
2799 3819
2800 if (expect_true (pending)) 3820 if (expect_true (pending))
… …
2832 w->active = 0; 3852 w->active = 0;
2833} 3853}
2834 3854
2835/*****************************************************************************/ 3855/*****************************************************************************/
2836 3856
2837void noinline 3857noinline
3858void
2838ev_io_start (EV_P_ ev_io *w) 3859ev_io_start (EV_P_ ev_io *w) EV_THROW
2839{ 3860{
2840 int fd = w->fd; 3861 int fd = w->fd;
2841 3862
2842 if (expect_false (ev_is_active (w))) 3863 if (expect_false (ev_is_active (w)))
2843 return; 3864 return;
… …
2849 3870
2850 ev_start (EV_A_ (W)w, 1); 3871 ev_start (EV_A_ (W)w, 1);
2851 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3872 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2852 wlist_add (&anfds[fd].head, (WL)w); 3873 wlist_add (&anfds[fd].head, (WL)w);
2853 3874
3875 /* common bug, apparently */
3876 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3877
2854 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3878 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2855 w->events &= ~EV__IOFDSET; 3879 w->events &= ~EV__IOFDSET;
2856 3880
2857 EV_FREQUENT_CHECK; 3881 EV_FREQUENT_CHECK;
2858} 3882}
2859 3883
2860void noinline 3884noinline
3885void
2861ev_io_stop (EV_P_ ev_io *w) 3886ev_io_stop (EV_P_ ev_io *w) EV_THROW
2862{ 3887{
2863 clear_pending (EV_A_ (W)w); 3888 clear_pending (EV_A_ (W)w);
2864 if (expect_false (!ev_is_active (w))) 3889 if (expect_false (!ev_is_active (w)))
2865 return; 3890 return;
2866 3891
… …
2874 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2875 3900
2876 EV_FREQUENT_CHECK; 3901 EV_FREQUENT_CHECK;
2877} 3902}
2878 3903
2879void noinline 3904noinline
3905void
2880ev_timer_start (EV_P_ ev_timer *w) 3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2881{ 3907{
2882 if (expect_false (ev_is_active (w))) 3908 if (expect_false (ev_is_active (w)))
2883 return; 3909 return;
2884 3910
2885 ev_at (w) += mn_now; 3911 ev_at (w) += mn_now;
… …
2898 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
2899 3925
2900 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3926 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2901} 3927}
2902 3928
2903void noinline 3929noinline
3930void
2904ev_timer_stop (EV_P_ ev_timer *w) 3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2905{ 3932{
2906 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
2907 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
2908 return; 3935 return;
2909 3936
… …
2928 ev_stop (EV_A_ (W)w); 3955 ev_stop (EV_A_ (W)w);
2929 3956
2930 EV_FREQUENT_CHECK; 3957 EV_FREQUENT_CHECK;
2931} 3958}
2932 3959
2933void noinline 3960noinline
3961void
2934ev_timer_again (EV_P_ ev_timer *w) 3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2935{ 3963{
2936 EV_FREQUENT_CHECK; 3964 EV_FREQUENT_CHECK;
3965
3966 clear_pending (EV_A_ (W)w);
2937 3967
2938 if (ev_is_active (w)) 3968 if (ev_is_active (w))
2939 { 3969 {
2940 if (w->repeat) 3970 if (w->repeat)
2941 { 3971 {
… …
2954 3984
2955 EV_FREQUENT_CHECK; 3985 EV_FREQUENT_CHECK;
2956} 3986}
2957 3987
2958ev_tstamp 3988ev_tstamp
2959ev_timer_remaining (EV_P_ ev_timer *w) 3989ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2960{ 3990{
2961 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3991 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2962} 3992}
2963 3993
2964#if EV_PERIODIC_ENABLE 3994#if EV_PERIODIC_ENABLE
2965void noinline 3995noinline
3996void
2966ev_periodic_start (EV_P_ ev_periodic *w) 3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2967{ 3998{
2968 if (expect_false (ev_is_active (w))) 3999 if (expect_false (ev_is_active (w)))
2969 return; 4000 return;
2970 4001
2971 if (w->reschedule_cb) 4002 if (w->reschedule_cb)
… …
2990 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
2991 4022
2992 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4023 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2993} 4024}
2994 4025
2995void noinline 4026noinline
4027void
2996ev_periodic_stop (EV_P_ ev_periodic *w) 4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2997{ 4029{
2998 clear_pending (EV_A_ (W)w); 4030 clear_pending (EV_A_ (W)w);
2999 if (expect_false (!ev_is_active (w))) 4031 if (expect_false (!ev_is_active (w)))
3000 return; 4032 return;
3001 4033
… …
3018 ev_stop (EV_A_ (W)w); 4050 ev_stop (EV_A_ (W)w);
3019 4051
3020 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3021} 4053}
3022 4054
3023void noinline 4055noinline
4056void
3024ev_periodic_again (EV_P_ ev_periodic *w) 4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3025{ 4058{
3026 /* TODO: use adjustheap and recalculation */ 4059 /* TODO: use adjustheap and recalculation */
3027 ev_periodic_stop (EV_A_ w); 4060 ev_periodic_stop (EV_A_ w);
3028 ev_periodic_start (EV_A_ w); 4061 ev_periodic_start (EV_A_ w);
3029} 4062}
… …
3033# define SA_RESTART 0 4066# define SA_RESTART 0
3034#endif 4067#endif
3035 4068
3036#if EV_SIGNAL_ENABLE 4069#if EV_SIGNAL_ENABLE
3037 4070
3038void noinline 4071noinline
4072void
3039ev_signal_start (EV_P_ ev_signal *w) 4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3040{ 4074{
3041 if (expect_false (ev_is_active (w))) 4075 if (expect_false (ev_is_active (w)))
3042 return; 4076 return;
3043 4077
3044 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4078 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3046#if EV_MULTIPLICITY 4080#if EV_MULTIPLICITY
3047 assert (("libev: a signal must not be attached to two different loops", 4081 assert (("libev: a signal must not be attached to two different loops",
3048 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4082 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3049 4083
3050 signals [w->signum - 1].loop = EV_A; 4084 signals [w->signum - 1].loop = EV_A;
4085 ECB_MEMORY_FENCE_RELEASE;
3051#endif 4086#endif
3052 4087
3053 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3054 4089
3055#if EV_USE_SIGNALFD 4090#if EV_USE_SIGNALFD
… …
3114 } 4149 }
3115 4150
3116 EV_FREQUENT_CHECK; 4151 EV_FREQUENT_CHECK;
3117} 4152}
3118 4153
3119void noinline 4154noinline
4155void
3120ev_signal_stop (EV_P_ ev_signal *w) 4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3121{ 4157{
3122 clear_pending (EV_A_ (W)w); 4158 clear_pending (EV_A_ (W)w);
3123 if (expect_false (!ev_is_active (w))) 4159 if (expect_false (!ev_is_active (w)))
3124 return; 4160 return;
3125 4161
… …
3156#endif 4192#endif
3157 4193
3158#if EV_CHILD_ENABLE 4194#if EV_CHILD_ENABLE
3159 4195
3160void 4196void
3161ev_child_start (EV_P_ ev_child *w) 4197ev_child_start (EV_P_ ev_child *w) EV_THROW
3162{ 4198{
3163#if EV_MULTIPLICITY 4199#if EV_MULTIPLICITY
3164 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4200 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3165#endif 4201#endif
3166 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
… …
3173 4209
3174 EV_FREQUENT_CHECK; 4210 EV_FREQUENT_CHECK;
3175} 4211}
3176 4212
3177void 4213void
3178ev_child_stop (EV_P_ ev_child *w) 4214ev_child_stop (EV_P_ ev_child *w) EV_THROW
3179{ 4215{
3180 clear_pending (EV_A_ (W)w); 4216 clear_pending (EV_A_ (W)w);
3181 if (expect_false (!ev_is_active (w))) 4217 if (expect_false (!ev_is_active (w)))
3182 return; 4218 return;
3183 4219
… …
3200 4236
3201#define DEF_STAT_INTERVAL 5.0074891 4237#define DEF_STAT_INTERVAL 5.0074891
3202#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3203#define MIN_STAT_INTERVAL 0.1074891 4239#define MIN_STAT_INTERVAL 0.1074891
3204 4240
3205static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4241noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3206 4242
3207#if EV_USE_INOTIFY 4243#if EV_USE_INOTIFY
3208 4244
3209/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4245/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3210# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4246# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3211 4247
3212static void noinline 4248noinline
4249static void
3213infy_add (EV_P_ ev_stat *w) 4250infy_add (EV_P_ ev_stat *w)
3214{ 4251{
3215 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); 4252 w->wd = inotify_add_watch (fs_fd, w->path,
4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4254 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4255 | IN_DONT_FOLLOW | IN_MASK_ADD);
3216 4256
3217 if (w->wd >= 0) 4257 if (w->wd >= 0)
3218 { 4258 {
3219 struct statfs sfs; 4259 struct statfs sfs;
3220 4260
… …
3224 4264
3225 if (!fs_2625) 4265 if (!fs_2625)
3226 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4266 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3227 else if (!statfs (w->path, &sfs) 4267 else if (!statfs (w->path, &sfs)
3228 && (sfs.f_type == 0x1373 /* devfs */ 4268 && (sfs.f_type == 0x1373 /* devfs */
4269 || sfs.f_type == 0x4006 /* fat */
4270 || sfs.f_type == 0x4d44 /* msdos */
3229 || sfs.f_type == 0xEF53 /* ext2/3 */ 4271 || sfs.f_type == 0xEF53 /* ext2/3 */
4272 || sfs.f_type == 0x72b6 /* jffs2 */
4273 || sfs.f_type == 0x858458f6 /* ramfs */
4274 || sfs.f_type == 0x5346544e /* ntfs */
3230 || sfs.f_type == 0x3153464a /* jfs */ 4275 || sfs.f_type == 0x3153464a /* jfs */
4276 || sfs.f_type == 0x9123683e /* btrfs */
3231 || sfs.f_type == 0x52654973 /* reiser3 */ 4277 || sfs.f_type == 0x52654973 /* reiser3 */
3232 || sfs.f_type == 0x01021994 /* tempfs */ 4278 || sfs.f_type == 0x01021994 /* tmpfs */
3233 || sfs.f_type == 0x58465342 /* xfs */)) 4279 || sfs.f_type == 0x58465342 /* xfs */))
3234 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4280 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3235 else 4281 else
3236 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4282 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3237 } 4283 }
… …
3272 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4318 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3273 ev_timer_again (EV_A_ &w->timer); 4319 ev_timer_again (EV_A_ &w->timer);
3274 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4320 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3275} 4321}
3276 4322
3277static void noinline 4323noinline
4324static void
3278infy_del (EV_P_ ev_stat *w) 4325infy_del (EV_P_ ev_stat *w)
3279{ 4326{
3280 int slot; 4327 int slot;
3281 int wd = w->wd; 4328 int wd = w->wd;
3282 4329
… …
3289 4336
3290 /* remove this watcher, if others are watching it, they will rearm */ 4337 /* remove this watcher, if others are watching it, they will rearm */
3291 inotify_rm_watch (fs_fd, wd); 4338 inotify_rm_watch (fs_fd, wd);
3292} 4339}
3293 4340
3294static void noinline 4341noinline
4342static void
3295infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3296{ 4344{
3297 if (slot < 0) 4345 if (slot < 0)
3298 /* overflow, need to check for all hash slots */ 4346 /* overflow, need to check for all hash slots */
3299 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4347 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3335 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4383 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3336 ofs += sizeof (struct inotify_event) + ev->len; 4384 ofs += sizeof (struct inotify_event) + ev->len;
3337 } 4385 }
3338} 4386}
3339 4387
3340inline_size void ecb_cold 4388inline_size ecb_cold
4389void
3341ev_check_2625 (EV_P) 4390ev_check_2625 (EV_P)
3342{ 4391{
3343 /* kernels < 2.6.25 are borked 4392 /* kernels < 2.6.25 are borked
3344 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4393 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3345 */ 4394 */
… …
3350} 4399}
3351 4400
3352inline_size int 4401inline_size int
3353infy_newfd (void) 4402infy_newfd (void)
3354{ 4403{
3355#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4404#if defined IN_CLOEXEC && defined IN_NONBLOCK
3356 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4405 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3357 if (fd >= 0) 4406 if (fd >= 0)
3358 return fd; 4407 return fd;
3359#endif 4408#endif
3360 return inotify_init (); 4409 return inotify_init ();
… …
3435#else 4484#else
3436# define EV_LSTAT(p,b) lstat (p, b) 4485# define EV_LSTAT(p,b) lstat (p, b)
3437#endif 4486#endif
3438 4487
3439void 4488void
3440ev_stat_stat (EV_P_ ev_stat *w) 4489ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3441{ 4490{
3442 if (lstat (w->path, &w->attr) < 0) 4491 if (lstat (w->path, &w->attr) < 0)
3443 w->attr.st_nlink = 0; 4492 w->attr.st_nlink = 0;
3444 else if (!w->attr.st_nlink) 4493 else if (!w->attr.st_nlink)
3445 w->attr.st_nlink = 1; 4494 w->attr.st_nlink = 1;
3446} 4495}
3447 4496
3448static void noinline 4497noinline
4498static void
3449stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4499stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3450{ 4500{
3451 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3452 4502
3453 ev_statdata prev = w->attr; 4503 ev_statdata prev = w->attr;
… …
3484 ev_feed_event (EV_A_ w, EV_STAT); 4534 ev_feed_event (EV_A_ w, EV_STAT);
3485 } 4535 }
3486} 4536}
3487 4537
3488void 4538void
3489ev_stat_start (EV_P_ ev_stat *w) 4539ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3490{ 4540{
3491 if (expect_false (ev_is_active (w))) 4541 if (expect_false (ev_is_active (w)))
3492 return; 4542 return;
3493 4543
3494 ev_stat_stat (EV_A_ w); 4544 ev_stat_stat (EV_A_ w);
… …
3515 4565
3516 EV_FREQUENT_CHECK; 4566 EV_FREQUENT_CHECK;
3517} 4567}
3518 4568
3519void 4569void
3520ev_stat_stop (EV_P_ ev_stat *w) 4570ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3521{ 4571{
3522 clear_pending (EV_A_ (W)w); 4572 clear_pending (EV_A_ (W)w);
3523 if (expect_false (!ev_is_active (w))) 4573 if (expect_false (!ev_is_active (w)))
3524 return; 4574 return;
3525 4575
… …
3541} 4591}
3542#endif 4592#endif
3543 4593
3544#if EV_IDLE_ENABLE 4594#if EV_IDLE_ENABLE
3545void 4595void
3546ev_idle_start (EV_P_ ev_idle *w) 4596ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3547{ 4597{
3548 if (expect_false (ev_is_active (w))) 4598 if (expect_false (ev_is_active (w)))
3549 return; 4599 return;
3550 4600
3551 pri_adjust (EV_A_ (W)w); 4601 pri_adjust (EV_A_ (W)w);
… …
3564 4614
3565 EV_FREQUENT_CHECK; 4615 EV_FREQUENT_CHECK;
3566} 4616}
3567 4617
3568void 4618void
3569ev_idle_stop (EV_P_ ev_idle *w) 4619ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3570{ 4620{
3571 clear_pending (EV_A_ (W)w); 4621 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 4622 if (expect_false (!ev_is_active (w)))
3573 return; 4623 return;
3574 4624
… …
3588} 4638}
3589#endif 4639#endif
3590 4640
3591#if EV_PREPARE_ENABLE 4641#if EV_PREPARE_ENABLE
3592void 4642void
3593ev_prepare_start (EV_P_ ev_prepare *w) 4643ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3594{ 4644{
3595 if (expect_false (ev_is_active (w))) 4645 if (expect_false (ev_is_active (w)))
3596 return; 4646 return;
3597 4647
3598 EV_FREQUENT_CHECK; 4648 EV_FREQUENT_CHECK;
… …
3603 4653
3604 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
3605} 4655}
3606 4656
3607void 4657void
3608ev_prepare_stop (EV_P_ ev_prepare *w) 4658ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3609{ 4659{
3610 clear_pending (EV_A_ (W)w); 4660 clear_pending (EV_A_ (W)w);
3611 if (expect_false (!ev_is_active (w))) 4661 if (expect_false (!ev_is_active (w)))
3612 return; 4662 return;
3613 4663
… …
3626} 4676}
3627#endif 4677#endif
3628 4678
3629#if EV_CHECK_ENABLE 4679#if EV_CHECK_ENABLE
3630void 4680void
3631ev_check_start (EV_P_ ev_check *w) 4681ev_check_start (EV_P_ ev_check *w) EV_THROW
3632{ 4682{
3633 if (expect_false (ev_is_active (w))) 4683 if (expect_false (ev_is_active (w)))
3634 return; 4684 return;
3635 4685
3636 EV_FREQUENT_CHECK; 4686 EV_FREQUENT_CHECK;
… …
3641 4691
3642 EV_FREQUENT_CHECK; 4692 EV_FREQUENT_CHECK;
3643} 4693}
3644 4694
3645void 4695void
3646ev_check_stop (EV_P_ ev_check *w) 4696ev_check_stop (EV_P_ ev_check *w) EV_THROW
3647{ 4697{
3648 clear_pending (EV_A_ (W)w); 4698 clear_pending (EV_A_ (W)w);
3649 if (expect_false (!ev_is_active (w))) 4699 if (expect_false (!ev_is_active (w)))
3650 return; 4700 return;
3651 4701
… …
3663 EV_FREQUENT_CHECK; 4713 EV_FREQUENT_CHECK;
3664} 4714}
3665#endif 4715#endif
3666 4716
3667#if EV_EMBED_ENABLE 4717#if EV_EMBED_ENABLE
3668void noinline 4718noinline
4719void
3669ev_embed_sweep (EV_P_ ev_embed *w) 4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3670{ 4721{
3671 ev_run (w->other, EVRUN_NOWAIT); 4722 ev_run (w->other, EVRUN_NOWAIT);
3672} 4723}
3673 4724
3674static void 4725static void
… …
3722 ev_idle_stop (EV_A_ idle); 4773 ev_idle_stop (EV_A_ idle);
3723} 4774}
3724#endif 4775#endif
3725 4776
3726void 4777void
3727ev_embed_start (EV_P_ ev_embed *w) 4778ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3728{ 4779{
3729 if (expect_false (ev_is_active (w))) 4780 if (expect_false (ev_is_active (w)))
3730 return; 4781 return;
3731 4782
3732 { 4783 {
… …
3753 4804
3754 EV_FREQUENT_CHECK; 4805 EV_FREQUENT_CHECK;
3755} 4806}
3756 4807
3757void 4808void
3758ev_embed_stop (EV_P_ ev_embed *w) 4809ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3759{ 4810{
3760 clear_pending (EV_A_ (W)w); 4811 clear_pending (EV_A_ (W)w);
3761 if (expect_false (!ev_is_active (w))) 4812 if (expect_false (!ev_is_active (w)))
3762 return; 4813 return;
3763 4814
… …
3773} 4824}
3774#endif 4825#endif
3775 4826
3776#if EV_FORK_ENABLE 4827#if EV_FORK_ENABLE
3777void 4828void
3778ev_fork_start (EV_P_ ev_fork *w) 4829ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3779{ 4830{
3780 if (expect_false (ev_is_active (w))) 4831 if (expect_false (ev_is_active (w)))
3781 return; 4832 return;
3782 4833
3783 EV_FREQUENT_CHECK; 4834 EV_FREQUENT_CHECK;
… …
3788 4839
3789 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
3790} 4841}
3791 4842
3792void 4843void
3793ev_fork_stop (EV_P_ ev_fork *w) 4844ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3794{ 4845{
3795 clear_pending (EV_A_ (W)w); 4846 clear_pending (EV_A_ (W)w);
3796 if (expect_false (!ev_is_active (w))) 4847 if (expect_false (!ev_is_active (w)))
3797 return; 4848 return;
3798 4849
… …
3811} 4862}
3812#endif 4863#endif
3813 4864
3814#if EV_CLEANUP_ENABLE 4865#if EV_CLEANUP_ENABLE
3815void 4866void
3816ev_cleanup_start (EV_P_ ev_cleanup *w) 4867ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3817{ 4868{
3818 if (expect_false (ev_is_active (w))) 4869 if (expect_false (ev_is_active (w)))
3819 return; 4870 return;
3820 4871
3821 EV_FREQUENT_CHECK; 4872 EV_FREQUENT_CHECK;
… …
3828 ev_unref (EV_A); 4879 ev_unref (EV_A);
3829 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
3830} 4881}
3831 4882
3832void 4883void
3833ev_cleanup_stop (EV_P_ ev_cleanup *w) 4884ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3834{ 4885{
3835 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w))) 4887 if (expect_false (!ev_is_active (w)))
3837 return; 4888 return;
3838 4889
… …
3852} 4903}
3853#endif 4904#endif
3854 4905
3855#if EV_ASYNC_ENABLE 4906#if EV_ASYNC_ENABLE
3856void 4907void
3857ev_async_start (EV_P_ ev_async *w) 4908ev_async_start (EV_P_ ev_async *w) EV_THROW
3858{ 4909{
3859 if (expect_false (ev_is_active (w))) 4910 if (expect_false (ev_is_active (w)))
3860 return; 4911 return;
3861 4912
3862 w->sent = 0; 4913 w->sent = 0;
… …
3871 4922
3872 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
3873} 4924}
3874 4925
3875void 4926void
3876ev_async_stop (EV_P_ ev_async *w) 4927ev_async_stop (EV_P_ ev_async *w) EV_THROW
3877{ 4928{
3878 clear_pending (EV_A_ (W)w); 4929 clear_pending (EV_A_ (W)w);
3879 if (expect_false (!ev_is_active (w))) 4930 if (expect_false (!ev_is_active (w)))
3880 return; 4931 return;
3881 4932
… …
3892 4943
3893 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
3894} 4945}
3895 4946
3896void 4947void
3897ev_async_send (EV_P_ ev_async *w) 4948ev_async_send (EV_P_ ev_async *w) EV_THROW
3898{ 4949{
3899 w->sent = 1; 4950 w->sent = 1;
3900 evpipe_write (EV_A_ &async_pending); 4951 evpipe_write (EV_A_ &async_pending);
3901} 4952}
3902#endif 4953#endif
… …
3939 4990
3940 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4991 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3941} 4992}
3942 4993
3943void 4994void
3944ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4995ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3945{ 4996{
3946 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4997 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3947 4998
3948 if (expect_false (!once)) 4999 if (expect_false (!once))
3949 { 5000 {
… …
3970} 5021}
3971 5022
3972/*****************************************************************************/ 5023/*****************************************************************************/
3973 5024
3974#if EV_WALK_ENABLE 5025#if EV_WALK_ENABLE
3975void ecb_cold 5026ecb_cold
5027void
3976ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 5028ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3977{ 5029{
3978 int i, j; 5030 int i, j;
3979 ev_watcher_list *wl, *wn; 5031 ev_watcher_list *wl, *wn;
3980 5032
3981 if (types & (EV_IO | EV_EMBED)) 5033 if (types & (EV_IO | EV_EMBED))
… …
4024 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 5076 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
4025#endif 5077#endif
4026 5078
4027#if EV_IDLE_ENABLE 5079#if EV_IDLE_ENABLE
4028 if (types & EV_IDLE) 5080 if (types & EV_IDLE)
4029 for (j = NUMPRI; i--; ) 5081 for (j = NUMPRI; j--; )
4030 for (i = idlecnt [j]; i--; ) 5082 for (i = idlecnt [j]; i--; )
4031 cb (EV_A_ EV_IDLE, idles [j][i]); 5083 cb (EV_A_ EV_IDLE, idles [j][i]);
4032#endif 5084#endif
4033 5085
4034#if EV_FORK_ENABLE 5086#if EV_FORK_ENABLE
… …
4087 5139
4088#if EV_MULTIPLICITY 5140#if EV_MULTIPLICITY
4089 #include "ev_wrap.h" 5141 #include "ev_wrap.h"
4090#endif 5142#endif
4091 5143
4092EV_CPP(})
4093

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